JPH06228200A - Production of complement c3c - Google Patents

Production of complement c3c

Info

Publication number
JPH06228200A
JPH06228200A JP5032518A JP3251893A JPH06228200A JP H06228200 A JPH06228200 A JP H06228200A JP 5032518 A JP5032518 A JP 5032518A JP 3251893 A JP3251893 A JP 3251893A JP H06228200 A JPH06228200 A JP H06228200A
Authority
JP
Japan
Prior art keywords
complement
solution
group
milk
exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5032518A
Other languages
Japanese (ja)
Inventor
Toshiaki Uchida
俊昭 内田
Shunichi Dosemari
俊一 堂迫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Snow Brand Milk Products Co Ltd
Original Assignee
Snow Brand Milk Products Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Snow Brand Milk Products Co Ltd filed Critical Snow Brand Milk Products Co Ltd
Priority to JP5032518A priority Critical patent/JPH06228200A/en
Publication of JPH06228200A publication Critical patent/JPH06228200A/en
Pending legal-status Critical Current

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  • Peptides Or Proteins (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

PURPOSE:To produce a complement C3c from a milk-based raw material. CONSTITUTION:A complement C3c in a milk-based raw material is absorbed into a cation exchanger by bringing the milk-based raw material into the cation exchanger and then eluted to recover the objective complement C3c or this eluted fraction of complement C3c is further absorbed into an anion exchanger by bringing the fraction into contact with the anion exchanger and then eluted to recover the objective complement C3c. Since the complement C3c having ability capable of preventing adhesion of pathogenic bacteria can inexpensively be produced in large amounts, the complement C3c can be provided as a raw material for providing ability capable of preventing adhesion of pathogenic bacteria to foods and drink, medicines, cosmetics and feeds.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、乳質原料から病原菌付
着阻止能を有する補体C3cを製造する方法に関する。
この補体C3cは、病原菌付着阻止能を有するので、病
原菌付着阻止能を付与する目的で飲食品、医薬、化粧
品、飼料などに添加して利用することが可能である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing complement C3c having an ability to inhibit the attachment of pathogenic bacteria from a milk material.
Since this complement C3c has the ability to prevent the attachment of pathogenic bacteria, it can be used by adding it to foods, drinks, medicines, cosmetics, feeds, etc. for the purpose of imparting the ability to prevent the attachment of pathogenic bacteria.

【0002】[0002]

【従来の技術】一般に病原菌は、体内への進入、標的細
胞への付着、増殖という過程を経て感染症を引き起こ
す。現在、この感染症に対する治療に用いられているも
のは主に抗生物質である。抗生物質は、細胞に付着、増
殖した病原菌を死滅させることによって病原を根絶しよ
うとするもので、病原菌の感染過程の最終段階に作用さ
せるものである。この抗生物質による感染治療は、発病
後の生体に対する治療法として非常に有効であるが、抗
生物質の性格上、様々な副作用あるいはアレルギー症状
を引起す等の問題点も多い。
2. Description of the Related Art Generally, pathogenic bacteria cause infectious diseases through the processes of entering the body, adhering to target cells, and multiplying. At present, what is used for the treatment of this infection is mainly antibiotics. Antibiotics are intended to eradicate pathogens by killing the pathogens that have adhered to and propagated in cells, and act at the final stage of the infection process of pathogens. The treatment of infection with this antibiotic is very effective as a treatment method for the living body after the onset of illness, but due to the nature of the antibiotic, there are many problems such as causing various side effects or allergic symptoms.

【0003】一方、生体は病原菌の感染に対し、感染初
期の段階において防御機構を備えている。例えば、消化
管内における分泌型IgAを主体とする免疫グロブリン
による防御機構がそれであり、これらの免疫グロブリン
は病原菌による感染初期の段階、すなわち、病原菌が標
的細胞へ付着することを阻止することによって生体を感
染から守っている。
On the other hand, the living body has a defense mechanism against the infection of pathogenic bacteria at the early stage of infection. For example, it is a defense mechanism by immunoglobulins mainly composed of secretory IgA in the digestive tract, and these immunoglobulins protect the living body at an early stage of infection by pathogens, that is, by preventing the pathogens from adhering to target cells. Protects from infection.

【0004】一般に病原菌が標的細胞に付着するに際し
ては、その標的細胞上の特定構造を受容体として認識し
ていることが知られている。したがって、これらの受容
体あるいは受容体と類似した構造を有し、病原菌との結
合能を有する物質は、病原菌表面の受容体と結合する部
位に特異的に結合し、結果的に病原菌が標的細胞上の受
容体に結合することを特異的に阻害するものと考えられ
ている。このような作用は、病原菌による感染を初期の
段階で阻止するという意味で、上述の免疫グロブリンに
よる生体防御機構に類似しているといえる。このよう
に、病原菌と特異的に結合し得る物質は、病原菌による
感染を未然に防ぎ、しかもその作用が穏やかであり、副
作用が少ない病原菌付着阻止剤になり得ると考えられ
る。そして、乳中に含まれるκ−カゼイングリコマクロ
ペプチドやラクトフェリンを有効成分とする病原菌付着
阻止剤が提案されている〔特開昭63−284133号
公報、特開平3−220130号公報〕。
It is generally known that, when a pathogenic bacterium attaches to a target cell, it recognizes a specific structure on the target cell as a receptor. Therefore, a substance having a structure similar to these receptors or a receptor and having the ability to bind to a pathogen is specifically bound to a site that binds to the receptor on the surface of the pathogen, and as a result, the pathogen is a target cell. It is believed to specifically inhibit binding to the above receptors. It can be said that such an action is similar to the above-mentioned biological defense mechanism by immunoglobulin in the sense that it blocks infection by pathogenic bacteria at an early stage. Thus, it is considered that the substance capable of specifically binding to the pathogenic bacterium can prevent the infection by the pathogenic bacterium, has a mild action, and can be a pathogen adhesion inhibitor with few side effects. Then, an agent for inhibiting the adherence of pathogenic bacteria, which contains κ-casein glycomacropeptide and lactoferrin contained in milk as active ingredients, has been proposed [JP-A-63-284133 and JP-A-3-220130].

【0005】ところで、補体系成分として補体第3成分
(C3)が知られている。ヒトC3は、αおよびβ鎖が
S−S結合で架橋された構造を持つ分子量約180kD
aの糖タンパク質で、補体系成分のうち血中含量が最も
高く、補体系の活性化に関与しているといわれている。
また、このC3の加水分解産物として、分子量約9kD
aのC3a、分子量約171kDaのC3b、分子量約
140kDaのC3c、分子量約30kDaのC3dお
よび分子量約12kDaのC3eが知られている。
By the way, a third complement component (C3) is known as a complement system component. Human C3 has a structure in which the α and β chains are cross-linked by S—S bonds and has a molecular weight of about 180 kD.
It is said that the glycoprotein of a has the highest blood content among components of the complement system and is involved in activation of the complement system.
Also, as a hydrolysis product of this C3, a molecular weight of about 9 kD
C3a having a molecular weight of about 171 kDa, C3b having a molecular weight of about 140 kDa, C3d having a molecular weight of about 30 kDa, and C3e having a molecular weight of about 12 kDa are known.

【0006】従来、補体C3cを得る方法として、補体
C3をプロテアーゼ処理した後、電気泳動によって補体
C3c画分を分取する方法が知られている〔Jarmi
laet al.,J.Immunol.Meth.、
第85巻、17−26頁、1985年〕。しかし、この
方法では補体C3cを大量に調製できないという問題が
あった。また、乳中から分取して補体C3cを大量に調
製する方法については、現在までのところ報告されてい
ない。
As a conventional method for obtaining complement C3c, a method of treating complement C3 with a protease and then fractionating the complement C3c fraction by electrophoresis is known [Jarmi.
la et al. J. Immunol. Meth. ,
85, 17-26, 1985]. However, this method has a problem that a large amount of complement C3c cannot be prepared. In addition, a method for collecting a large amount of complement C3c by separating it from milk has not been reported so far.

【0007】[0007]

【発明が解決しようとする課題】本発明者らは、病原菌
付着阻止能を有する補体C3cが乳中に比較的大量に存
在することを見出し、さらに効率よく補体C3cを乳中
から分離できる方法を見出して本発明を成すに至った。
したがって、本発明は乳質原料から補体C3cを製造す
る方法を提供することを課題とする。
DISCLOSURE OF THE INVENTION The present inventors have found that a relatively large amount of complement C3c capable of inhibiting the attachment of pathogenic bacteria is present in milk, and it is possible to separate complement C3c from milk more efficiently. The inventors have found a method and completed the present invention.
Therefore, it is an object of the present invention to provide a method for producing complement C3c from a milk material.

【0008】[0008]

【発明を解決するための手段】乳質原料から大量に補体
C3cを得る方法について、以下に説明する。補体C3
cを含む乳質原料を陽イオン交換体と接触させ、補体C
3cを陽イオン交換体に吸着させた後、イオン強度の異
なる溶液を用いて補体C3cを溶出する。
A method for obtaining a large amount of complement C3c from a dairy raw material will be described below. Complement C3
A milk material containing c is brought into contact with a cation exchanger to obtain complement C.
After adsorbing 3c to the cation exchanger, the complement C3c is eluted using a solution having different ionic strength.

【0009】補体C3cを含む乳質原料としては、ヒ
ト、ウシ、水牛、ヒツジ、ヤギ等哺乳動物由来の乳ある
いは乳清を挙げることができ、脱脂粉乳、全粉乳、ホエ
ー粉、ホエータンパク質を75%以上含有するWPC
(ホエータンパク質濃縮物)あるいはホエータンパク質
を90%以上含有するWPI(ホエータンパク質分離
物)を還元したものを用いることもできる。さらに、等
電点沈殿によってカゼインを除去したり、レンネットに
よってカゼインカードを除去した上清、あるいはチーズ
製造時に排出されるチーズホエーなども利用することが
できる。これらの乳質原料は、予めクラリファイヤー、
マイクロフィルトレーション、濾過などの操作によって
沈殿物を除去したものを用いることが望ましい。このよ
うな乳質原料を用いることにより、イオン交換体への吸
着効率を高めることができ、補体C3cの純度を高める
ことができる。なお、補体C3cは変性し易いので、穏
やかな熱処理条件の乳質原料を用いることが好ましい。
また、乳質原料のpHについては特に制限はないが、強
酸性条件あるいは強アルカリ条件下では補体C3cが変
性するので望ましくない。
Examples of the milk material containing complement C3c include milk or whey derived from mammals such as humans, cows, buffalo, sheep and goats, and skim milk powder, whole milk powder, whey powder and whey protein can be used. % Or more WPC
(Whey protein concentrate) or WPI (whey protein isolate) containing 90% or more whey protein may be reduced. Furthermore, casein can be removed by isoelectric point precipitation, casein curd removed by rennet, or cheese whey discharged during cheese production can be used. These dairy ingredients are preliminarily clarifier,
It is desirable to use the one from which the precipitate has been removed by operations such as microfiltration and filtration. By using such a milk material, the efficiency of adsorption to the ion exchanger can be increased, and the purity of complement C3c can be increased. Since complement C3c is easily denatured, it is preferable to use a milk material under mild heat treatment conditions.
The pH of the dairy raw material is not particularly limited, but it is not desirable because the complement C3c is denatured under strongly acidic conditions or strong alkaline conditions.

【0010】補体C3cの吸着に用いる陽イオン交換体
としては、架橋型の多糖類、セルロース、アクリルアミ
ド樹脂などの高分子にカルボキシル基、スルホン基、リ
ン酸基等を導入したもの、あるいは、高分子と交換基の
間にスペーサーを導入したものなどを挙げることがで
き、具体的には、カルボキシメチル基を導入したCM−
セルロファインC−500(生化学工業(株)製)、ス
ルホン基を導入したスルホン化キトパール(富士紡績
(株)製)、スルホプロピル基を導入したSP−トヨパ
ール550C(東ソー(株)製)、S−セファロース
ファースト フロー(ファルマシア社製)などを例示す
ることができる。
As the cation exchanger used for adsorption of complement C3c, a polymer having a carboxyl group, a sulfone group, a phosphate group or the like introduced into a polymer such as a cross-linked polysaccharide, cellulose or acrylamide resin, or a high cation exchanger Examples thereof include those in which a spacer is introduced between the molecule and the exchange group, and specifically, CM-in which a carboxymethyl group is introduced.
Cellulofine C-500 (manufactured by Seikagaku Corporation), sulfonated chitopearl (manufactured by Fuji Spinning Co., Ltd.) having a sulfo group introduced, SP-Toyopearl 550C (manufactured by Tosoh Corporation) having a sulfopropyl group introduced, S-Sepharose
First flow (Pharmacia) and the like can be exemplified.

【0011】補体C3cを含む乳質原料を陽イオン交換
体と接触させる方法としては、タンク内で接触させる方
法、陽イオン交換体を充填したカラムに乳質原料を通液
する方法、回転型カラム反応器を用いる方法〔特開平2
−138295号公報〕など従来より知られている方法
を用いることができるが、大量に補体C3cを調製する
に際しては回転型カラム反応器を用いる方法を採用する
と特に効率的である。補体C3cを含む乳質原料を陽イ
オン交換体と接触させる際の温度条件については特に制
限はないが、通常4℃〜60℃の範囲で行うことが望ま
しい。4℃未満の温度で接触を行うと乳質原料の凍結、
粘度の上昇、脂肪分離などの問題が生じる。また、60
℃以上の温度で接触を行うと補体C3cが変性する危険
性が高まる。なお、15℃以上の温度で接触を行うと微
生物の繁殖が著しくなるので、乳質原料を大量に使用す
る場合は、15℃未満で接触を行うことが望ましい。陽
イオン交換体は乳質原料1kgに対して0.1〜100
gを目安に用い、15分間〜15時間程度、陽イオン交
換体と乳質原料を接触させる。
The method for contacting the milk material containing the complement C3c with the cation exchanger includes a method of contacting in a tank, a method of passing the milk material through a column packed with the cation exchanger, and a rotary column reaction. Method using a container
No. 138295 gazette] can be used, but when a large amount of complement C3c is prepared, a method using a rotary column reactor is particularly efficient. There are no particular restrictions on the temperature conditions for contacting the dairy raw material containing complement C3c with the cation exchanger, but it is usually desirable to perform it within the range of 4 ° C to 60 ° C. Freezing of the dairy raw material when contacted at a temperature below 4 ° C
Problems such as increased viscosity and fat separation occur. Also, 60
Contacting at a temperature of ℃ or higher increases the risk of denaturation of complement C3c. If the contact is carried out at a temperature of 15 ° C or higher, the growth of microorganisms will be remarkable. Therefore, when a large amount of dairy raw material is used, it is desirable to carry out the contact at a temperature lower than 15 ° C. The cation exchanger is 0.1 to 100 for 1 kg of milk material.
Using g as a guide, the cation exchanger and the milk raw material are brought into contact with each other for about 15 minutes to 15 hours.

【0012】陽イオン交換体に吸着させた補体C3cの
溶出は、次のような手順で行う。まず、好ましくは、イ
オン強度が0.15未満でpHが2〜10の溶液で補体
C3cを吸着させた陽イオン交換体を洗浄する。この
際、洗浄に用いる溶液のイオン強度が0.15以上にな
ると補体C3cが溶出してしまう危険性が高まり、ま
た、pHが2未満あるいは10を越えると補体C3cが
変性する危険性が高まる。この洗浄に用いる溶液として
は、水に食塩や塩化カリウムなどの塩を溶解してイオン
強度を0.15未満に調整した溶液、あるいは、酢酸緩
衝液、クエン酸緩衝液などの有機酸緩衝液やグリシン、
ジメチルグルタル酸緩衝液などの緩衝液、さらには、リ
ン酸緩衝液などを挙げることができる。なお、この洗浄
に先立って、水あるいは温湯で予備洗浄を行っておく
と、洗浄に使用する溶液の液量を節約することができる
ので、コスト面で有利となる。
Elution of complement C3c adsorbed on the cation exchanger is carried out by the following procedure. First, preferably, the cation exchanger having adsorbed complement C3c is washed with a solution having an ionic strength of less than 0.15 and a pH of 2 to 10. At this time, if the ionic strength of the solution used for washing is 0.15 or more, the risk of complement C3c elution increases, and if the pH is less than 2 or more than 10, the risk of denaturation of complement C3c increases. Increase. The solution used for this washing is a solution in which salt such as sodium chloride or potassium chloride is dissolved in water to adjust the ionic strength to less than 0.15, or an organic acid buffer solution such as an acetate buffer solution or a citrate buffer solution. glycine,
A buffer solution such as a dimethyl glutarate buffer solution, and a phosphate buffer solution may be mentioned. It should be noted that pre-washing with water or warm water prior to this washing can save the amount of the solution used for washing, which is advantageous in terms of cost.

【0013】次に、イオン強度が0.15以上、好まし
くは0.3〜2.0でpHが2〜10、好ましくは4〜
8の溶液で補体C3cを陽イオン交換体から溶出させ
る。この際、溶出に用いる溶液のイオン強度が0.15
未満では補体C3cの溶出量が少なくなり、また、この
溶液のpHが2未満あるいは10を越えると補体C3c
が変性する危険性が高まる。この溶出に用いることので
きる溶液としては、水に食塩や塩化カリウムなどの塩を
溶解してイオン強度を0.15以上に調整した溶液、あ
るいは、クエン酸緩衝液、酢酸緩衝液、マレイン酸緩衝
液などの有機酸緩衝液、リン酸緩衝液、イミダゾール緩
衝液、重炭酸ナトリウム緩衝液、ホウ酸緩衝液、トリス
緩衝液などを挙げることができる。
Next, the ionic strength is 0.15 or more, preferably 0.3 to 2.0, and the pH is 2 to 10, preferably 4 to.
Elute complement C3c from the cation exchanger with the solution of 8. At this time, the ionic strength of the solution used for elution was 0.15
When the pH is less than 2, the elution amount of complement C3c becomes small, and when the pH of this solution is less than 2 or more than 10, the complement C3c becomes less.
The risk of degeneration increases. The solution that can be used for this elution is a solution in which salt such as sodium chloride or potassium chloride is dissolved in water to adjust the ionic strength to 0.15 or more, or a citrate buffer solution, an acetate buffer solution, a maleate buffer solution. Examples thereof include organic acid buffers such as liquids, phosphate buffers, imidazole buffers, sodium bicarbonate buffers, borate buffers, and Tris buffers.

【0014】このようにして得られた補体C3c含有画
分については、必要に応じて濃縮、脱塩、乾燥などの処
理を行う。濃縮は、真空濃縮法、限外濾過法、逆浸透圧
濾過法などの処理方法を用いることができる。また、脱
塩は、限外濾過膜、透析膜、電気透析膜、あるいはイオ
ン交換樹脂、ゲル濾過用担体などを用いて行うことがで
きる。さらに、乾燥は、凍結乾燥法や噴霧乾燥法などの
処理方法を用いることができる。なお、この場合の補体
C3cの純度は30%以上となる。
The complement C3c-containing fraction thus obtained is optionally subjected to treatments such as concentration, desalting, and drying. For the concentration, a treatment method such as a vacuum concentration method, an ultrafiltration method or a reverse osmosis filtration method can be used. Further, desalting can be carried out using an ultrafiltration membrane, a dialysis membrane, an electrodialysis membrane, an ion exchange resin, a gel filtration carrier or the like. Further, for the drying, a processing method such as a freeze drying method or a spray drying method can be used. The purity of complement C3c in this case is 30% or more.

【0015】このようにして得られた補体C3c含有画
分を病原菌付着阻止能を有する物質として飲食品、医
薬、化粧品、飼料などに添加することもできるが、この
補体C3c含有画分中には、免疫グロブリン、カゼイン
残渣、ラクトパーオキシダーゼなどの不純物が存在する
ので、さらに高純度の補体C3cを得るには、これらの
不純物を除去するために陰イオン交換体を用いて処理を
行うとよい。
The complement C3c-containing fraction thus obtained can be added to foods and drinks, pharmaceuticals, cosmetics, feeds, etc. as a substance having an ability to inhibit the attachment of pathogenic bacteria. Contain impurities such as immunoglobulin, casein residue, and lactoperoxidase. Therefore, in order to obtain higher-purity complement C3c, treatment with an anion exchanger is performed to remove these impurities. Good.

【0016】陰イオン交換体に接触させる際のpHは2
以上10以下、好ましくはpH4以上8以下に調整す
る。pHが2未満の場合、あるいはpHが10を越える
場合、補体C3cは陰イオン交換体に殆ど吸着しない
し、さらに、強アルカリ条件下で接触を行うと補体C3
cが変性する危険性も高まる。なお、吸着を効率的に行
うためには、補体C3c含有画分のイオン強度を0.1
以下に調整しておくことが好ましい。
The pH at the time of contact with the anion exchanger is 2
The pH is adjusted to 10 or more, preferably pH 4 or more and 8 or less. If the pH is less than 2 or more than 10, the complement C3c hardly adsorbs to the anion exchanger, and if contact is performed under strong alkaline conditions, complement C3c
The risk of degeneration of c also increases. For efficient adsorption, the ionic strength of the complement C3c-containing fraction should be 0.1
It is preferable to make the following adjustments.

【0017】陰イオン交換体に接触させる補体C3c含
有画分としては、陽イオン交換体処理によって得られた
補体C3c含有画分を濃縮・脱塩したもの、あるいは補
体C3c含有画分の乾燥粉末を水または緩衝液で溶解し
たものなどを用いる。補体C3c含有画分の乾燥粉末を
溶解するのに用いることのできる緩衝液は、特に限定さ
れないが、クエン酸緩衝液、酢酸緩衝液、マレイン酸緩
衝液などの有機酸緩衝液、リン酸緩衝液、イミダゾール
緩衝液、重炭酸ナトリウム緩衝液、ホウ酸緩衝液、トリ
ス緩衝液などを挙げることができる。
As the complement C3c-containing fraction to be brought into contact with the anion exchanger, the complement C3c-containing fraction obtained by the cation exchanger treatment is concentrated and desalted, or the complement C3c-containing fraction is obtained. A dry powder dissolved in water or a buffer is used. The buffer solution that can be used to dissolve the dry powder of the complement C3c-containing fraction is not particularly limited, but may be an organic acid buffer solution such as a citrate buffer solution, an acetate buffer solution, a maleate buffer solution, or a phosphate buffer solution. Liquid, imidazole buffer, sodium bicarbonate buffer, borate buffer, Tris buffer and the like.

【0018】用いる陰イオン交換体としては、架橋型の
多糖類、セルロース、アクリルアミド樹脂などの高分子
にアミノエチル基、第4級アミノエチル基、4級アンモ
ニウム基などを導入したもの、あるいは、高分子と交換
基の間にスペーサーを導入したものなどを挙げることが
できる。具体的には、ジエチルアミノエチル基を導入し
たDEAE−セルロファイン(生化学工業(株)製)や
第4級アミノエチル基を導入したQAE−セファデック
ス(ファルマシア社製)を用いるとよい。
The anion exchanger to be used may be one obtained by introducing an aminoethyl group, a quaternary aminoethyl group, a quaternary ammonium group or the like into a polymer such as a cross-linking type polysaccharide, cellulose, acrylamide resin, or the like. Examples thereof include a spacer introduced between the molecule and the exchange group. Specifically, DEAE-Cellulofine (manufactured by Seikagaku Corporation) having a diethylaminoethyl group introduced therein and QAE-Sephadex (manufactured by Pharmacia) having a quaternary aminoethyl group introduced therein may be used.

【0019】補体C3c含有画分を陰イオン交換体と接
触させる方法としては、タンク内で接触させる方法、陰
イオン交換体を充填したカラムに通液する方法、回転型
カラム反応器を用いる方法〔特開平2−138295号
公報〕など、従来より知られている方法を用いることが
できる。補体C3c含有画分を陰イオン交換体と接触さ
せる際の温度条件については、特に制限はないが、通常
4℃〜40℃の範囲で行うことが望ましい。40℃以上
の温度で接触を行うと微生物の繁殖による汚染が著しく
なる。
The complement C3c-containing fraction may be contacted with the anion exchanger by contacting in a tank, passing through a column packed with anion exchanger, or using a rotary column reactor. A conventionally known method such as [JP-A-2-138295] can be used. The temperature condition for bringing the complement C3c-containing fraction into contact with the anion exchanger is not particularly limited, but is usually preferably in the range of 4 ° C to 40 ° C. If the contact is performed at a temperature of 40 ° C. or higher, the contamination due to the growth of microorganisms becomes remarkable.

【0020】陰イオン交換体に吸着させた補体C3cの
溶出は、次のような手順で行う。まず、イオン強度が
0.3未満でpHが2〜10の溶液で補体C3cを吸着
させた陰イオン交換体を洗浄する。この際、洗浄に用い
る溶液のイオン強度が0.3以上になると補体C3cが
溶出してしまう危険性があり、また、pHが2未満ある
いは10を越えると補体C3cが変性する危険性が高ま
る。したがって、好ましくは、イオン強度が0.25以
下でpHが4〜8の溶液で陰イオン交換体を洗浄すると
良い。洗浄に用いる溶液としては、水に食塩や塩化カリ
ウムなどの塩を溶解してイオン強度を0.3未満に調整
した溶液、あるいは、酢酸緩衝液、クエン酸緩衝液など
の有機酸緩衝液やグリシン、ジメチルグルタル酸緩衝液
などの緩衝液、さらには、リン酸緩衝液などを挙げるこ
とができる。なお、この洗浄に先立って、水あるいは温
湯で予備洗浄を行っておくと洗浄に使用する溶液の液量
を節約することができるので、コスト面で有利となる。
Elution of complement C3c adsorbed on the anion exchanger is carried out by the following procedure. First, the anion exchanger having adsorbed complement C3c is washed with a solution having an ionic strength of less than 0.3 and a pH of 2 to 10. At this time, there is a risk that the complement C3c will be eluted if the ionic strength of the solution used for washing is 0.3 or more, and there is a risk that the complement C3c will be denatured if the pH is less than 2 or more than 10. Increase. Therefore, it is preferable to wash the anion exchanger with a solution having an ionic strength of 0.25 or less and a pH of 4 to 8. As a solution used for washing, a solution in which salt such as sodium chloride or potassium chloride is dissolved in water to adjust the ionic strength to less than 0.3, or an organic acid buffer such as acetate buffer or citrate buffer or glycine is used. , A buffer solution such as dimethyl glutarate buffer solution, and a phosphate buffer solution. It should be noted that pre-washing with water or warm water prior to this washing can save the amount of the solution used for washing, which is advantageous in terms of cost.

【0021】次に、イオン強度が0.3以上、好ましく
は0.4〜1.0でpHが2〜10、好ましくは4〜8
の溶液で補体C3cを陰イオン交換体から溶出させる。
この際、溶出に用いる溶液のイオン強度が0.3未満で
は補体C3cの溶出量が少なくなり、また、この溶液の
pHが2未満あるいは10を越えると補体C3cが変性
する危険性が高まる。この溶出に用いることのできる溶
液としては、水に食塩や塩化カリウムなどの塩を溶解し
てイオン強度を0.3以上に調整した溶液、あるいは、
クエン酸緩衝液、酢酸緩衝液、マレイン酸緩衝液などの
有機酸緩衝液、リン酸緩衝液、イミダゾール緩衝液、重
炭酸ナトリウム緩衝液、ホウ酸緩衝液、トリス緩衝液な
どを挙げることができる。
Next, the ionic strength is 0.3 or more, preferably 0.4 to 1.0, and the pH is 2 to 10, preferably 4 to 8.
Complement C3c is eluted from the anion exchanger with the solution of.
At this time, if the ionic strength of the solution used for elution is less than 0.3, the elution amount of complement C3c will be small, and if the pH of this solution is less than 2 or more than 10, the risk of denaturation of complement C3c will increase. . As the solution that can be used for this elution, a solution in which salt such as sodium chloride or potassium chloride is dissolved in water to adjust the ionic strength to 0.3 or more, or
Examples thereof include citrate buffer, acetate buffer, maleic acid buffer and other organic acid buffers, phosphate buffers, imidazole buffers, sodium bicarbonate buffers, borate buffers, Tris buffers and the like.

【0022】このようにして得られた補体C3c含有画
分については、必要に応じて濃縮、脱塩、乾燥などの処
理を行う。濃縮は、真空濃縮法、限外濾過法、逆浸透圧
濾過法などの処理方法を用いることができる。また、脱
塩は、限外濾過膜、透析膜、電気透析膜、あるいはイオ
ン交換樹脂、ゲル濾過用担体などを用いて行うことがで
きる。さらに、乾燥は、凍結乾燥法や噴霧乾燥法などの
処理方法を用いることができる。なお、この場合の補体
C3cの純度は60%以上となる。
The complement C3c-containing fraction thus obtained is subjected to treatments such as concentration, desalting and drying, if necessary. For the concentration, a treatment method such as a vacuum concentration method, an ultrafiltration method or a reverse osmosis filtration method can be used. Further, desalting can be carried out using an ultrafiltration membrane, a dialysis membrane, an electrodialysis membrane, an ion exchange resin, a gel filtration carrier or the like. Further, for the drying, a processing method such as a freeze drying method or a spray drying method can be used. The purity of complement C3c in this case is 60% or more.

【0023】このようにして得られた補体C3c含有画
分を病原菌付着阻止能を有する物質として飲食品、医
薬、化粧品、飼料などに添加することもできるが、常法
に従い、さらに精製して高純度の補体C3cを得ること
もできる。
The complement C3c-containing fraction thus obtained can be added to foods, drinks, pharmaceuticals, cosmetics, feeds, etc. as a substance having an ability to inhibit the attachment of pathogenic bacteria, but it is further purified by a conventional method. It is also possible to obtain high-purity complement C3c.

【0024】なお、精製された補体C3cについて、ア
ミノ酸配列を分析したところ、N末端側アミノ酸15残
基は、Asn−Pro−Met−Tyr−Ser−Me
t−Ile−Thr−Pro−Asn−Ile−Leu
−Arg−Leu−Glu−であり、ヒト補体C3のN
末端側アミノ酸13残基と一致した。また、分子量もヒ
ト補体C3cの140kDaと近似の値を示し、市販の
ウシ補体C3c抗体を用いたウェスタンブロッティング
により、強い発色が認められた。次に本発明を実施例を
挙げて具体的に説明する。
When the amino acid sequence of the purified complement C3c was analyzed, 15 amino acid residues on the N-terminal side were found to have Asn-Pro-Met-Tyr-Ser-Me.
t-Ile-Thr-Pro-Asn-Ile-Leu
-Arg-Leu-Glu- and N of human complement C3.
It coincided with 13 residues of the terminal amino acid. Further, the molecular weight also showed a value close to 140 kDa of human complement C3c, and strong color development was recognized by Western blotting using a commercially available bovine complement C3c antibody. Next, the present invention will be specifically described with reference to examples.

【0025】[0025]

【実施例1】スルホン化キトパール(富士紡績(株)
製)1.5Lを充填した回転型カラム反応器(東京理化
器械(株)製)に300kgの生脱脂乳を200L/h
の流速で通液した。通液後、回転型カラム反応器を水で
十分洗浄した後、0.1M塩化カリウムを含む0.01
Mクエン酸−クエン酸ナトリウム緩衝液(pH5.0)
で洗浄した。補体C3cの溶出は0.8M塩化カリウム
を含むクエン酸−クエン酸ナトリウム緩衝液(pH5.
0)で行った。そして、分画分子量50,000の限外
濾過膜を用いて濃縮、脱塩した。この段階で補体C3c
の純度を電気泳動によって求めたところ、41%であっ
た。
[Example 1] Sulfonated chitopearl (Fuji Spinning Co., Ltd.)
200 L / h of 300 kg of raw skim milk in a rotary column reactor (manufactured by Tokyo Rika Kikai Co., Ltd.) filled with 1.5 L
The liquid was passed at a flow rate of. After passing the solution, the rotary column reactor was thoroughly washed with water, and then 0.01 M containing 0.1 M potassium chloride was added.
M citric acid-sodium citrate buffer (pH 5.0)
Washed with. The elution of complement C3c was carried out using a citric acid-sodium citrate buffer solution (pH 5.
0). Then, it was concentrated and desalted using an ultrafiltration membrane having a cut-off molecular weight of 50,000. Complement C3c at this stage
The purity of the product was 41% as determined by electrophoresis.

【0026】[0026]

【実施例2】実施例1で得られた補体C3cを含む溶出
画分500mlを水酸化ナトリウムでpH7.0に調整
し、0.01Mリン酸緩衝液(pH7.0)で平衡化し
たDEAE−セルロファインAM(生化学工業(株)
製)を充填したカラムに通液した。通液後、カラムを
0.15M塩化カリウムを含む0.01Mリン酸緩衝液
(pH7.0)で洗浄した。補体C3cの溶出は、0.
5M塩化カリウムを含む0.01Mリン酸緩衝液(pH
7.0)で行った。そして、セファデックスG−25
(ファルマシア社製)を用いて脱塩し、凍結乾燥を行っ
て1gの粉末を得た。こうして得られた補体C3cの純
度を電気泳動によって求めたところ、78%であった。
Example 2 500 ml of the eluted fraction containing complement C3c obtained in Example 1 was adjusted to pH 7.0 with sodium hydroxide and equilibrated with 0.01 M phosphate buffer (pH 7.0). -Cellulofine AM (Seikagaku Corporation)
The product was passed through a column filled with After passing the solution, the column was washed with a 0.01 M phosphate buffer solution (pH 7.0) containing 0.15 M potassium chloride. The elution of complement C3c was 0.
0.01M phosphate buffer containing 5M potassium chloride (pH
7.0). And Sephadex G-25
(Manufactured by Pharmacia), desalted and freeze-dried to obtain 1 g of powder. The purity of the complement C3c thus obtained was 78% as determined by electrophoresis.

【0027】[0027]

【実施例3】実施例2で得られた補体C3c粉末を50
mMリン酸緩衝液(pH7.0)25mlに溶解し、あ
らかじめ50mMリン酸緩衝液(pH7.0)で平衡化
したプロテインGアフィニティーカラム(ファルマシア
社製、直径1.5cm×11.5cm、容量20ml)
に通液し、2ml/分の流速で50mMリン酸緩衝液
(pH7.0)を通液して非吸着画分を回収した。この
非吸着画分をさらに50mMリン酸緩衝液(pH7.
0)で平衡化したプロテインGアフィニティーカラム
(ファルマシア社製、直径1.5cm×11.5cm、
容量20ml)に通液し、2ml/分の流速で50mM
リン酸緩衝液(pH7.0)を通液して非吸着画分を回
収した。この二度のアフィニティークロマトグラフィー
によって、免疫グロブリンGが完全に除去された。得ら
れた非吸着画分48mlを分画分子量10,000の限
外濾過膜(アドバンテック社製)で15mlとなるまで
濃縮し、0.5M塩化ナトリウムを含む10mMイミダ
ゾール−塩酸緩衝液(pH6.5)で平衡化したハイロ
ード16/60スーパーデックス75(ファルマシア社
製、直径1.6cm×60cm)に5mlずつ通液し、
0.5M塩化ナトリウムを含む10mMイミダゾール−
塩酸緩衝液(pH6.5)を0.4ml/分の流速で通
液してメインピークを分取し、さらにハイロード16/
60スーパーデックス75(ファルマシア社製、直径
1.6cm×60cm)で処理することによって補体C
3cを得た。得られた補体C3cを脱イオン水に対して
透析した後、凍結乾燥を行い、重量を測定したところ
0.6gであった。また、この補体C3cの純度を電気
泳動によって求めたところ、98%であった。
Example 3 The complement C3c powder obtained in Example 2 was added to 50 parts.
Protein G affinity column (Pharmacia, diameter 1.5 cm x 11.5 cm, volume 20 ml) dissolved in 25 ml of mM phosphate buffer (pH 7.0) and equilibrated with 50 mM phosphate buffer (pH 7.0) in advance. )
Then, 50 mM phosphate buffer (pH 7.0) was passed at a flow rate of 2 ml / min to collect the non-adsorbed fraction. This non-adsorbed fraction was further added to 50 mM phosphate buffer (pH 7.
0) equilibrated with protein G affinity column (Pharmacia, diameter 1.5 cm × 11.5 cm,
Volume of 20 ml) and 50 mM at a flow rate of 2 ml / min.
A non-adsorbed fraction was recovered by passing a phosphate buffer (pH 7.0). Immunoglobulin G was completely removed by this double affinity chromatography. The resulting non-adsorbed fraction (48 ml) was concentrated to 15 ml with an ultrafiltration membrane (Advantech) having a molecular weight cutoff of 10,000, and 10 mM imidazole-hydrochloric acid buffer solution (pH 6.5) containing 0.5 M sodium chloride. 5 ml each was passed through High Road 16/60 Superdex 75 (Pharmacia, diameter 1.6 cm x 60 cm) equilibrated with),
10 mM imidazole containing 0.5 M sodium chloride
A hydrochloric acid buffer solution (pH 6.5) is passed at a flow rate of 0.4 ml / min to separate the main peak, and then the high load 16 /
Complement C by treatment with 60 Superdex 75 (Pharmacia, diameter 1.6 cm x 60 cm)
3c was obtained. The obtained complement C3c was dialyzed against deionized water, freeze-dried, and the weight was measured to be 0.6 g. The purity of this complement C3c was 98% as determined by electrophoresis.

【0028】[0028]

【実施例4】0.01Mイミダゾール−塩酸緩衝液(p
H6.5)で平衡化したS−セファロース ファースト
フロー(ファルマシア社製)10mlを充填したカラム
(直径2mm×16cm)にミルパップ(安積濾紙
(株)製)で濾過したチーズホエー1lを3ml/分の
流速で通液した。通液後、0.1M塩化ナトリウムを含
む0.01Mイミダゾール−塩酸緩衝液(pH6.5)
で洗浄し、0.35M塩化ナトリウムを含む0.01M
イミダゾール−塩酸緩衝液(pH6.5)で溶出した。
得られた20mlの溶出画分について、4℃で15時
間、0.01Mイミダゾール−塩酸緩衝液(pH6.
5)に対する透析を行った。そして、この透析物を、
0.01Mイミダゾール−塩酸緩衝液(pH5.5)で
平衡化したQ−セファロース ファーストフロー(ファ
ルマシア社製)3mlを充填したカラム(直径0.8c
m×6cm)に2ml/分の流速で通液した。通液後、
0.1M塩化ナトリウムを含む0.01Mイミダゾール
−塩酸緩衝液(pH5.5)で洗浄し、0.4M塩化ナ
トリウムを含む0.01Mイミダゾール−塩酸緩衝液
(pH5.5)で溶出した。この溶出画分を分画分子量
10,000の限外濾過膜で脱塩し、凍結乾燥を行っ
た。得られた補体C3cの純度を電気泳動によって求め
たところ、82%であった。また、回収量は2mgであ
った。
Example 4 0.01M imidazole-hydrochloric acid buffer solution (p
H-6.5) equilibrated S-Sepharose Fast Flow (Pharmacia) 10 ml packed column (diameter 2 mm x 16 cm) with mill pap (Azumi Filter Paper Co., Ltd.) cheese whey 1 l 3 ml / min. The liquid was passed at a flow rate. After passing the solution, 0.01 M imidazole-hydrochloric acid buffer solution (pH 6.5) containing 0.1 M sodium chloride
Washed with 0.01M containing 0.35M sodium chloride
Elution was carried out with an imidazole-hydrochloric acid buffer solution (pH 6.5).
About 20 ml of the obtained elution fraction, 0.01 M imidazole-hydrochloric acid buffer solution (pH 6.
Dialysis against 5) was performed. And this dialysate,
Column packed with 3 ml of Q-Sepharose Fast Flow (Pharmacia) equilibrated with 0.01 M imidazole-hydrochloric acid buffer (pH 5.5) (diameter 0.8 c
m × 6 cm) at a flow rate of 2 ml / min. After passing the liquid
It was washed with 0.01 M imidazole-hydrochloric acid buffer solution (pH 5.5) containing 0.1 M sodium chloride, and eluted with 0.01 M imidazole-hydrochloric acid buffer solution (pH 5.5) containing 0.4 M sodium chloride. The eluted fraction was desalted with an ultrafiltration membrane having a molecular weight cut off of 10,000 and freeze-dried. The purity of the obtained complement C3c was 82% as determined by electrophoresis. The recovered amount was 2 mg.

【0029】[0029]

【発明の効果】本発明の方法によると、乳質原料から病
原菌付着阻止能を有する補体C3cを工業的規模で大量
かつ安価に製造できる。したがって、飲食品、医薬、化
粧品、飼料などに病原菌付着阻止能を付与するための素
材として、補体C3cを安定的に供給することができ
る。以下に、本発明の方法によって得られた補体C3c
の病原菌付着阻止効果と飲食品、医薬、化粧品、飼料へ
の応用例について示す。
EFFECT OF THE INVENTION According to the method of the present invention, complement C3c having the ability to inhibit the attachment of pathogenic bacteria can be produced on a large scale and at low cost from a milk material on an industrial scale. Therefore, the complement C3c can be stably supplied as a material for imparting the pathogenic bacterium adhesion-inhibiting ability to foods, drinks, medicines, cosmetics, feeds and the like. Below, complement C3c obtained by the method of the present invention
The following is a description of the effect of inhibiting the attachment of pathogenic bacteria and application examples to food and drink, pharmaceuticals, cosmetics, and feed.

【0030】[0030]

【試験例1】実施例3で得られた補体C3c及びこの補
体C3cをプロナーゼ処理して得られた補体C3c加水
分解物の病原性大腸菌に対する付着阻止効果について、
ヒト小腸細胞JTC−17を用いて調べた。東京医科大
学より分譲を受けたヒト小腸細胞JTC−17を、5%
牛胎児血清を含むダルベッコ変法イーグル培地(5%F
CS/DMEM)にて25cm2 の底面積をもつ培養フ
ラスコに37℃、CO2 濃度5%で培養した。細胞がフ
ラスコの底面一面に増殖したら、培養を止め、常法通り
トリプシン(200U/ml)含有リン酸緩衝生理食塩
水(PBS)1mlにて細胞を剥がし取り、1,000
rpmで5分間遠心分離することで細胞を集めた。上清
を吸い出し、新たに5%FCS/DMEM8mlに細胞
を懸濁して培養した。この細胞懸濁液各1mlを10m
lポリスチレンチューブ(ファルコン社製、2095)
に入れ37℃、3日間培養した。
TEST EXAMPLE 1 Regarding the effect of inhibiting complement C3c obtained in Example 3 and the complement C3c hydrolyzate obtained by treating this complement C3c with pronase against pathogenic Escherichia coli,
It was examined using human small intestinal cells JTC-17. 5% of human small intestinal cell JTC-17, which was purchased from Tokyo Medical University
Dulbecco's modified Eagle medium containing fetal bovine serum (5% F
(CS / DMEM) was cultured in a culture flask having a bottom area of 25 cm 2 at 37 ° C. and a CO 2 concentration of 5%. When the cells have grown on the entire bottom surface of the flask, the culture is stopped, and the cells are peeled off with 1 ml of trypsin (200 U / ml) -containing phosphate buffered saline (PBS) as usual, and the cells are removed.
The cells were collected by centrifugation at rpm for 5 minutes. The supernatant was sucked out, and the cells were newly suspended in 8 ml of 5% FCS / DMEM and cultured. 10 ml of each 1 ml of this cell suspension
l Polystyrene tube (Falcon, 2095)
The cells were placed in a plate and cultured at 37 ° C. for 3 days.

【0031】一方、都立衛生研究所より分譲を受けた病
原性大腸菌H10497株、Pb176株をそれぞれ1
白金耳取り、普通ブイヨン培地4mlに37℃で一夜培
養した。培養後、3,000rpm、10分間、遠心分
離することにより集菌し、これをpH8に調整したPB
Sで3回洗浄した。その後、病原性大腸菌をpH8に調
整したPBS1mlに懸濁し、フルオレッセインイソチ
オシアネート(FITC)(シグマ社製)1mgを加え
てよく溶解し、4℃で3時間ゆっくり攪拌しながら反応
させ、病原性大腸菌をFITCにてラベルした。ラベル
を終えた病原性大腸菌は、3,000rpm、10分間
の遠心分離にて集菌し、PBSにて3回洗浄した後、3
mlのPBSに懸濁した。このようにして調製したFI
TCラベルの病原性大腸菌懸濁液400μlに、本発明
に係る各試料のPBS溶液200μlを混合し、37℃
で1時間インキュベートした。
On the other hand, 1 each of pathogenic Escherichia coli H10497 strain and Pb176 strain received from Tokyo Metropolitan Institute of Health
Platinum loops were taken and cultured in 4 ml of normal broth medium at 37 ° C. overnight. After culturing, the cells were collected by centrifugation at 3,000 rpm for 10 minutes, and PB adjusted to pH 8
Wash with S three times. Then, the pathogenic Escherichia coli was suspended in 1 ml of PBS adjusted to pH 8, 1 mg of fluorescein isothiocyanate (FITC) (manufactured by Sigma) was added and well dissolved. E. coli was labeled with FITC. Labeled pathogenic E. coli was collected by centrifugation at 3,000 rpm for 10 minutes, washed 3 times with PBS, and then 3
Suspended in ml PBS. FI thus prepared
400 μl of TC-labeled pathogenic Escherichia coli suspension was mixed with 200 μl of PBS solution of each sample according to the present invention, and the mixture was incubated at 37 ° C.
And incubated for 1 hour.

【0032】そして、3日間の培養を終えたJTC17
細胞を1,000rpmで5分間遠心分離し、上清の培
地を除き、さらにPBSで3回洗浄し、これに上述の病
原性大腸菌と試料を混合してインキュベートした溶液各
600μlを加え、37℃で30分間インキュベートし
た。さらに、750rpm、5分間遠心分離し、細胞の
みを沈殿させ、細胞に付着せず、上清に残った病原性大
腸菌を吸い出した。さらに、PBSにて細胞を2回洗浄
した。PBSで洗浄した細胞に200Uトリプシン/P
BS900μlを加え、激しく攪拌した。これに0.1
%SDS100μl、1mlの脱イオン交換水を加えて
激しく攪拌し、30分間静置することにより細胞を溶解
した。この溶液を蛍光分光光度計(日立フルオレッセン
ススペクトロメーターF−3000)にて励起波長49
0nm、蛍光波長520nmで相対蛍光強度を測定し、
蛍光ラベルした病原性大腸菌のJTC−17細胞への付
着を評価した。
Then, JTC17 which had been cultured for 3 days
The cells were centrifuged at 1,000 rpm for 5 minutes, the supernatant medium was removed, the cells were further washed 3 times with PBS, and 600 µl of a solution prepared by mixing the above-mentioned pathogenic Escherichia coli and the sample and incubating them was added to each well, and the temperature was 37 ° C. And incubated for 30 minutes. Further, the cells were centrifuged at 750 rpm for 5 minutes to precipitate only the cells, and the pathogenic Escherichia coli that did not adhere to the cells and remained in the supernatant was sucked out. Furthermore, the cells were washed twice with PBS. 200U trypsin / P was added to the cells washed with PBS.
900 μl of BS was added and vigorously stirred. 0.1 for this
% SDS (100 μl) and 1 ml of deionized exchanged water were added, and the mixture was vigorously stirred and left to stand for 30 minutes to lyse the cells. Excitation wavelength of this solution was 49 with a fluorescence spectrophotometer (Hitachi Fluorescence Spectrometer F-3000).
Relative fluorescence intensity is measured at 0 nm and fluorescence wavelength of 520 nm,
Adhesion of fluorescently labeled pathogenic E. coli to JTC-17 cells was evaluated.

【0033】なお、試料無添加(ブランク)時の相対蛍
光強度を付着率100%、蛍光ラベルした病原性大腸菌
のポリスチレンチューブへの非特異的な吸着(ポリスチ
レンチューブ内に検体と同じ濃度の蛍光ラベルした病原
性大腸菌を入れ、検体と同条件で測定した相対蛍光強
度)を付着率0%とし、各試料を添加した際の付着阻止
率を算出し、表1に示した。補体C3cを含むいずれの
試料も、病原性大腸菌のヒト小腸細胞(JTC−17)
への付着は阻止され、0.1%でも効果が期待される。
The relative fluorescence intensity when no sample was added (blank) was 100%, and the non-specific adsorption of the fluorescently labeled pathogenic Escherichia coli to the polystyrene tube (fluorescent label having the same concentration as the sample in the polystyrene tube) was used. Adhesion rate of each sample was calculated by setting the relative fluorescence intensity (measured under the same conditions as the sample) of 0% to 100%, and the adhesion inhibition rate when each sample was added is shown in Table 1. All samples containing complement C3c are human intestinal cells of pathogenic E. coli (JTC-17)
Adhesion to is prevented, and even 0.1% is expected to be effective.

【表1】 ──────────────────────────────────── 付着阻止率(%) 試 料 ─────────────── H10407 Pb176 ──────────────────────────────────── 0.1%bC3c 34 42 1.0%bC3c 66 78 1.0%bC3cプロナーゼ処理10分間 63 77 1.0%bC3cプロナーゼ処理20分間 49 58 1.0%bC3cプロナーゼ処理60分間 25 31 1.0%BSA 3 4 ──────────────────────────────────── bC3c:ウシ補体C3c、BSA:ウシ血清アルブミン[Table 1] ──────────────────────────────────── Adhesion inhibition rate (%) Test material ── ───────────── H10407 Pb176 ─────────────────────────────────── -0.1% bC3c 34 42 1.0% bC3c 66 78 1.0% bC3c pronase treatment 10 minutes 63 77 1.0% bC3c pronase treatment 20 minutes 49 58 1.0% bC3c pronase treatment 60 minutes 25 31 1. 0% BSA 34 ──────────────────────────────────── bC3c: Bovine complement C3c, BSA: Bovine serum albumin

【0034】[0034]

【試験例2】実施例3で得られた補体C3c及びこの補
体C3cをプロナーゼ処理して得られた補体C3c加水
分解物のう歯原菌に対する付着阻止効果について、ポリ
スチレンチューブを用いて調べた。3種のストレプトコ
ッカス・ミュータンス(ATCC 27607、ATC
C25175、ATCC 27351)を一白金耳取
り、ブレインハートインフージョン(BHI)培地4m
lで一晩培養した。その後、3000rpm、10分間
遠心分離することにより集菌し、上清の培地を吸い出
し、さらにこれをPBSで3回洗浄し、これを650n
mで吸光度0.8となるようにPBSに懸濁した。この
菌体懸濁液と本発明に係る各試料のPBS溶液を等量混
合し、10mlのポリスチレンチューブ(ファルコン社
製、2095)に入れ、よく攪拌し、37℃、3時間イ
ンキュベートした。インキュベート終了後、650nm
で吸光度を測定し、次の式より付着率を求めることによ
って、各試料を添加した際の付着阻止率を算出した。付
着率(%)={(0.4−X)/0.4}×100
TEST EXAMPLE 2 The effect of inhibiting complement C3c obtained in Example 3 and the complement C3c hydrolyzate obtained by treating this complement C3c with pronase against dental caries, using a polystyrene tube. Examined. Three Streptococcus mutans (ATCC 27607, ATC
C25175, ATCC 27351), 1 platinum loop, Brain Heart Infusion (BHI) medium 4m
Incubate overnight in 1. Thereafter, the cells were collected by centrifugation at 3000 rpm for 10 minutes, the supernatant medium was sucked out, and this was further washed 3 times with PBS to obtain 650 n.
It was suspended in PBS so that the absorbance was 0.8 at m. Equal amounts of this bacterial cell suspension and the PBS solution of each sample according to the present invention were mixed, placed in a 10 ml polystyrene tube (Falcon, 2095), stirred well, and incubated at 37 ° C. for 3 hours. 650nm after incubation
The absorbance was measured with and the adhesion rate was calculated from the following formula to calculate the adhesion inhibition rate when each sample was added. Adhesion rate (%) = {(0.4-X) /0.4} × 100

【0035】その結果を表2に示す。なお、試験は全て
2連で行った。補体C3cを含むいずれの試料も、う歯
原菌のポリスチレンチューブへの付着を阻止した。
The results are shown in Table 2. All tests were conducted in duplicate. All samples containing complement C3c blocked the attachment of cariogenic bacteria to polystyrene tubes.

【表2】 ──────────────────────────────────── 付着阻止率(%) 試 料 ──────────────────────── ATCC ATCC ATCC 27607 25175 27351 ──────────────────────────────────── 0.1%bC3c 15 22 15 1.0%bC3c 46 48 58 1.0%bC3c 41 41 53 (プロナーゼ処理10分間) 1.0%bC3c 34 35 43 (プロナーゼ処理20分間) 1.0%bC3c 17 21 26 (プロナーゼ処理60分間) 1.0%BSA 3 4 3 ──────────────────────────────────── bC3c:ウシ補体C3c、BSA:ウシ血清アルブミン[Table 2] ──────────────────────────────────── Adhesion inhibition rate (%) Test material ── ────────────────────── ATCC ATCC ATCC 27607 25175 27351 ─────────────────────── ────────────── 0.1% bC3c 15 22 15 1.0% bC3c 46 48 58 1.0% bC3c 41 41 53 (Pronase treatment 10 minutes) 1.0% bC3c 34 35 43 (Pronase treatment 20 minutes) 1.0% bC3c 17 21 26 (Pronase treatment 60 minutes) 1.0% BSA 3 4 3 ───────────────────── ──────────────── bC3c: Bovine complement C3c, BSA: Bovine serum albumin

【0036】[0036]

【試験例3】実施例3で得られた補体C3cの病原性大
腸菌腸管付着阻止効果について、無菌マウスを用いて調
べた。無菌マウスICRを5匹ずつ4群に分け、各群に
以下の試料を毎日0.2mlずつ経口投与した。 A群 PBS・0.2ml B群 bC3c・0.1mg/0.2ml・PBS C群 bC3c・0.5mg/0.2ml・PBS D群 BSA・0.5mg/0.2ml・PBS なお、各試料は0.22μmのフィルターで濾過し、除
菌してから用いた。
TEST EXAMPLE 3 The effect of complement C3c obtained in Example 3 on the intestinal adhesion of pathogenic Escherichia coli was examined using sterile mice. Sterile mouse ICR was divided into 4 groups of 5 mice, and 0.2 ml of the following sample was orally administered to each group every day. Group A PBS / 0.2 ml Group B bC3c / 0.1 mg / 0.2 ml / PBS Group C bC3c / 0.5 mg / 0.2 ml / PBS Group D BSA / 0.5 mg / 0.2 ml / PBS Each sample Was filtered through a 0.22 μm filter to remove bacteria and used.

【0037】一方、病原性大腸菌Pb176株を普通ブ
イヨン培地で培養後、集菌し、PBSで3回洗浄した。
各試料投与後、1週間目の各マウスに104 CFU/
0.2mlの病原性大腸菌懸濁液を経口投与し、さらに
1週間各試料を投与し続けた。その後、マウスを無菌的
に解剖し、腸管をホモゲナイズし、その1mlを寒天ゲ
ル平板に接種し、病原性大腸菌の菌数を数えた。 A群 3.7×108 CFU B群 5.1×107 CFU C群 1.9×106 CFU D群 2.1×108 CFU
On the other hand, the pathogenic Escherichia coli Pb176 strain was cultured in a normal broth medium, then the cells were collected and washed 3 times with PBS.
After administration of each sample, 10 4 CFU /
0.2 ml of pathogenic Escherichia coli suspension was orally administered, and each sample was continuously administered for another week. Then, the mouse was aseptically dissected, the intestinal tract was homogenized, and 1 ml thereof was inoculated on an agar gel plate to count the number of pathogenic Escherichia coli. Group A 3.7 × 10 8 CFU Group B 5.1 × 10 7 CFU Group C 1.9 × 10 6 CFU Group D 2.1 × 10 8 CFU

【0038】このように、B群及びC群ではA群に比べ
て有意に病原性大腸菌の菌数が少なく、顕著な付着阻止
効果が示された。さらに、BSAを投与したD群では効
果のないことから、病原性大腸菌の付着阻止効果は補体
C3cの特異的な作用であることが判る。
As described above, the numbers of pathogenic Escherichia coli in the groups B and C were significantly smaller than those in the group A, and a remarkable adhesion-inhibiting effect was shown. Further, since there is no effect in the D group to which BSA was administered, it can be seen that the adhesion-inhibiting effect of pathogenic Escherichia coli is a specific action of complement C3c.

【0039】[0039]

【試験例4】実施例3で得られた補体C3cの虫歯予防
効果について、ウィスターラットを用いて調べた。3週
令ウィスターラットに、全小麦粉6g、ショ糖56g、
脱脂粉乳28g、アルファルファ葉粗粉末3g、肝1
g、ビール酵母4g、食塩2gからなるショ糖強化食を
投与して飼育した。ラットを3匹ずつ5群に分け、各群
に以下の試料を飲料水として給水ボトルに入れて自由摂
取させた。 A群 脱イオン水 B群 0.1%bC3c C群 1%bC3c D群 1%BSA
TEST EXAMPLE 4 The dental caries preventive effect of complement C3c obtained in Example 3 was examined using Wistar rats. 3 weeks old Wistar rat, 6 g of whole wheat flour, 56 g of sucrose,
Skim milk powder 28g, alfalfa leaf coarse powder 3g, liver 1
g, brewer's yeast 4 g, and salt 2 g were administered and fed. Rats were divided into 5 groups of 3 animals, and the following samples were placed in a water bottle as drinking water and freely ingested in each group. Group A Deionized water Group B 0.1% bC3c Group C 1% bC3c Group D 1% BSA

【0040】1週間後、ストレプトコッカス・ミュータ
ンスを口腔内に接種し、さらに2ヶ月間飼育した。その
後、歯を顎ごと摘出し、実体顕微鏡下で虫歯の発生状況
を観察して虫歯の程度を調べた。全く虫歯の発生してい
ないもの0点とし、全部の歯に虫歯が広がっているもの
10点として、その範囲で各群の得点を合計した。その
結果を表3に示した。B群、C群及びD群において、有
意に虫歯の発生を防止できることが判った。
After one week, Streptococcus mutans was inoculated into the oral cavity, and the animals were further raised for 2 months. After that, the teeth were extracted together with the jaws, and the degree of tooth decay was examined by observing the occurrence of tooth decay under a stereoscopic microscope. The score of each group was totaled within that range, with 0 points showing no caries at all and 10 points having caries spread over all the teeth. The results are shown in Table 3. It was found that the occurrence of caries can be significantly prevented in groups B, C and D.

【表3】 ──────────────────────────────────── 試料 虫歯発生状況得点合計 ──────────────────────────────────── A群 脱イオン水 46 B群 0.1%bC3c 33 C群 1%bC3c 16 D群 1%BSA 43 ──────────────────────────────────── bC3c:ウシ補体C3c、BSA:ウシ血清アルブミン[Table 3] ──────────────────────────────────── Specimen Cavity occurrence score Total ──── ──────────────────────────────── A group Deionized water 46 B group 0.1% bC3c 33 C group 1% bC3c 16 D group 1% BSA 43 ──────────────────────────────────── bC3c: Bovine complement C3c , BSA: Bovine serum albumin

【0041】[0041]

【試験例5】実施例3で得られた補体C3cの病原性大
腸菌皮膚付着阻止効果について、無菌マウスを用いて調
べた。無菌マウスICRの背中の体毛を約2cm角で剃
り落とし、アルコール綿で消毒した。この無菌マウスを
4匹ずつ5群に分け、体毛を剃った部分を中心に注射針
で傷を付け、各群の無菌マウスに以下の試料を塗布し
た。 A群 脱イオン水 B群 0.1%bC3c C群 1%bC3c D群 1%bC3cトリプシン処理20分間 E群 1%BSA
[Test Example 5] The effect of complement C3c obtained in Example 3 on the skin adhesion of pathogenic Escherichia coli was examined using a sterile mouse. The hair on the back of the aseptic mouse ICR was shaved off at about 2 cm square and disinfected with alcohol cotton. This sterile mouse was divided into 5 groups of 4 mice each, and the wounded body was injured with an injection needle around the shaved part, and the following samples were applied to the sterile mice in each group. Group A Deionized water Group B 0.1% bC3c Group C 1% bC3c Group D 1% bC3c Trypsin treatment 20 minutes Group E 1% BSA

【0042】試料を塗布した直後に、病原性大腸菌H1
0407株を104 CFUずつ塗布した。1時間後、P
BSにて傷口を洗い、1週間そのまま無菌的に飼育し
た。その後、皮膚を1cm角に切り取り、ホモゲナイズ
した。この液1mlを寒天培地を入れたシャーレに接種
し、37℃、一夜培養後、病原性大腸菌の菌数を測定し
た。 A群 8.7×107 CFU B群 1.1×107 CFU C群 3.6×106 CFU D群 8.9×106 CFU E群 4.1×108 CFU B群、C群及びD群は、A群及びE群より有意に病原性
大腸菌の付着が少なかった。
Immediately after applying the sample, the pathogenic E. coli H1
0407 strain was applied by 10 4 CFU each. 1 hour later, P
The wound was washed with BS and kept aseptically for 1 week. Then, the skin was cut into 1 cm squares and homogenized. 1 ml of this solution was inoculated into a petri dish containing an agar medium and cultured overnight at 37 ° C., after which the number of pathogenic Escherichia coli was measured. Group A 8.7 × 10 7 CFU B group 1.1 × 10 7 CFU C group 3.6 × 10 6 CFU D group 8.9 × 10 6 CFU E group 4.1 × 10 8 CFU B group, C group The groups D and D had significantly less adherence of pathogenic E. coli than the groups A and E.

【0043】[0043]

【参考例1】次のような配合組成の補体C3c配合飲料
を製造した。A液・補体C3c2g及び脱イオン水1k
g、B液・ショ糖0.96g、クエン酸16g、クエン
酸ナトリウム16g、ビタミンB2 0.02g、ビタミ
ンB0.044g、ビタミンC0.11g、葉酸0.0
08g、香料2g、5倍濃縮オレンジ果汁40g、水1
kg。このA液とB液を別々に63℃、30分間保持
し、殺菌を行った後、5〜10℃に冷却し、混合、貯蔵
した。次いで、この混合液を殺菌済紙容器に無菌的に充
填し、感染防御能を付加した飲料を製造した。
[Reference Example 1] A complement C3c blended beverage having the following blending composition was produced. Liquid A / Complement C3c2g and deionized water 1k
g, B liquid / sucrose 0.96 g, citric acid 16 g, sodium citrate 16 g, vitamin B 2 0.02 g, vitamin B 0.044 g, vitamin C 0.11 g, folic acid 0.0
08 g, fragrance 2 g, 5 times concentrated orange juice 40 g, water 1
kg. The solutions A and B were separately held at 63 ° C. for 30 minutes, sterilized, cooled to 5 to 10 ° C., mixed, and stored. Then, this mixed solution was aseptically filled in a sterilized paper container to produce a beverage having an infection protection ability.

【0044】[0044]

【参考例2】次に、虫歯予防用チューインガムの配合例
を示す。(数値は重量%) ソルビトール 68 ガム基質 23 グリセロール 6 補体C3c 1 調味料 1 着色料 0.5 炭酸水素ナトリウム 0.5
Reference Example 2 Next, a compounding example of chewing gum for preventing tooth decay will be shown. (The numerical value is% by weight) Sorbitol 68 Gum substrate 23 Glycerol 6 Complement C3c 1 Seasoning 1 Coloring agent 0.5 Sodium hydrogencarbonate 0.5

【0045】[0045]

【参考例3】次に、虫歯予防用歯磨粉の配合例を示す。
(数値は重量%) 配合例1 配合例2 リン酸水素カルシウム二水和物 45 45 グリセリン 10 10 ソルビトール 25 25 補体C3c 2 1 カルボキシメチルセルロースナトリウム 0.5 0.5 カラギーナン 0.3 0.3 ビーガム 0.2 0.2 サッカリンナトリウム 0.2 0.2 ラウリル硫酸ナトリウム 1.2 1.2 ビタミンE酢酸塩 0.1 0.1 香料 1.0 1.0 水 14.5 15.5
Reference Example 3 Next, a compounding example of toothpaste for preventing tooth decay will be shown.
(Numerical values are% by weight) Formulation Example 1 Formulation Example 2 Calcium hydrogen phosphate dihydrate 45 45 Glycerin 10 10 Sorbitol 25 25 Complement C3c 2 1 Carboxymethylcellulose sodium 0.5 0.5 Carrageenan 0.3 0.3 Veegum 0.2 0.2 Saccharin sodium 0.2 0.2 Sodium lauryl sulfate 1.2 1.2 Vitamin E acetate 0.1 0.1 Flavor 1.0 1.0 Water 14.5 15.5

【0046】[0046]

【参考例4】次に、ニキビ予防用ローションの配合例を
示す。(数値は重量%) 配合例1 配合例2 クエン酸素カルシウム二水和物 0.1 0.1 スルホ石灰酸亜鉛 0.2 0.2 グリセリン 5.0 5.0 ポリオキシエチレン(20M) 1.0 1.0 オレインアルコールエーテル 0.5 0.5 エチルアルコール 20 20 香料・防腐剤 2.0 2.0 補体C3c 0.5 1.0 水 70.7 70.2 このローションは、1日1〜3回顔面に塗布する。
Reference Example 4 Next, a formulation example of a lotion for preventing acne will be shown. (Numerical values are% by weight) Formulation example 1 Formulation example 2 Citric oxygen calcium dihydrate 0.1 0.1 Zinc sulfocalcate 0.2 0.2 Glycerin 5.0 5.0 Polyoxyethylene (20M) 1. 0 1.0 Olein alcohol ether 0.5 0.5 Ethyl alcohol 20 20 Perfume / preservative 2.0 2.0 Complement C3c 0.5 1.0 Water 70.7 70.2 This lotion is 1 day a day Apply to face 3 times.

【0047】[0047]

【参考例5】次に、動物用飼料の配合例を示す。 脱脂粉乳 60.0g ホエー蛋白濃縮物 14.3g 乳脂肪 17.2g グルコース 5.0g ビタミン・ミネラル 2.5g 補体C3c 1.0g[Reference Example 5] Next, a compounding example of animal feed will be shown. Nonfat dry milk 60.0 g Whey protein concentrate 14.3 g Milk fat 17.2 g Glucose 5.0 g Vitamin and mineral 2.5 g Complement C3c 1.0 g

【0048】[0048]

【参考例6】次に、医薬用カプセル剤の配合例を示す。 乳糖 5.0g 微結晶セルロース 2.5g 補体C3c 2.5gReference Example 6 Next, a formulation example of a pharmaceutical capsule is shown. Lactose 5.0 g Microcrystalline cellulose 2.5 g Complement C3c 2.5 g

【0049】[0049]

【参考例7】次に、医薬用錠剤の調製例を示す。補体C
3c100mg及び微結晶セルロース100mgを含む
錠剤を常法に従って調製し、シロップゼラチン沈降性炭
酸カルシウムで糖衣を施した。この錠剤は、1日1〜3
錠を目安に摂取される。
Reference Example 7 Next, a preparation example of a pharmaceutical tablet will be shown. Complement C
A tablet containing 100 mg of 3c and 100 mg of microcrystalline cellulose was prepared according to a conventional method, and sugar-coated with syrup gelatin-precipitable calcium carbonate. This tablet is 1 to 3 times a day
Ingested as a guide.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 A61K 37/54 8314−4C ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location A61K 37/54 8314-4C

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 補体C3cを含む乳質原料を陽イオン交
換体と接触させて補体C3cを陽イオン交換体に吸着さ
せた後、溶出することを特徴とする補体C3cの製造
法。
1. A method for producing complement C3c, which comprises contacting a dairy raw material containing complement C3c with a cation exchanger so that the complement C3c is adsorbed on the cation exchanger and then eluting.
【請求項2】 陽イオン交換体に吸着させた補体C3c
を溶出するに際し、イオン強度が0.15以上でpHが
2〜10の溶液を用いる請求項1記載の補体C3cの製
造法。
2. Complement C3c adsorbed on a cation exchanger
The method for producing complement C3c according to claim 1, wherein a solution having an ionic strength of 0.15 or more and a pH of 2 to 10 is used in eluting the.
【請求項3】 陽イオン交換体に補体C3cを吸着させ
た後、補体C3cを溶出するに先立って、イオン強度が
0.15未満でpHが2〜10の溶液を用いて陽イオン
交換体を洗浄する請求項1又は2記載の補体C3cの製
造法。
3. After adsorbing complement C3c to a cation exchanger, prior to eluting complement C3c, cation exchange is performed using a solution having an ionic strength of less than 0.15 and a pH of 2 to 10. The method for producing complement C3c according to claim 1 or 2, wherein the body is washed.
【請求項4】 請求項1乃至3のいずれかに記載の方法
で溶出した補体C3cを、さらに陰イオン交換体と接触
させて補体C3cを陰イオン交換体に吸着させた後、溶
出することを特徴とする補体C3cの製造法。
4. The complement C3c eluted by the method according to any one of claims 1 to 3 is further contacted with an anion exchanger to adsorb the complement C3c to the anion exchanger and then eluted. A method for producing complement C3c, which is characterized in that
【請求項5】 陰イオン交換体に吸着させた補体C3c
を溶出するに際し、イオン強度が0.3以上でpHが2
〜10の溶液を用いる請求項4記載の補体C3cの製造
法。
5. Complement C3c adsorbed on an anion exchanger
The ionic strength is 0.3 or more and the pH is 2
The method for producing complement C3c according to claim 4, wherein the solution of 10 to 10 is used.
【請求項6】 陰イオン交換体に補体C3cを吸着させ
た後、補体C3cを溶出するに先立って、イオン強度が
0.3未満でpHが2〜10の溶液を用いて陰イオン交
換体を洗浄する請求項4又は5記載の補体C3cの製造
法。
6. Anion exchange using a solution having an ionic strength of less than 0.3 and a pH of 2 to 10 after adsorbing the complement C3c to an anion exchanger and prior to eluting the complement C3c. The method for producing complement C3c according to claim 4 or 5, wherein the body is washed.
JP5032518A 1993-01-29 1993-01-29 Production of complement c3c Pending JPH06228200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5032518A JPH06228200A (en) 1993-01-29 1993-01-29 Production of complement c3c

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5032518A JPH06228200A (en) 1993-01-29 1993-01-29 Production of complement c3c

Publications (1)

Publication Number Publication Date
JPH06228200A true JPH06228200A (en) 1994-08-16

Family

ID=12361192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5032518A Pending JPH06228200A (en) 1993-01-29 1993-01-29 Production of complement c3c

Country Status (1)

Country Link
JP (1) JPH06228200A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012180368A (en) * 2012-05-21 2012-09-20 Snow Brand Milk Products Co Ltd Bone resorption inhibitor
WO2015041218A1 (en) 2013-09-17 2015-03-26 株式会社カネカ Novel antibody purification method and antibody obtained therefrom, and novel antibody purification method using cation exchanger and antibody obtained therefrom

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012180368A (en) * 2012-05-21 2012-09-20 Snow Brand Milk Products Co Ltd Bone resorption inhibitor
WO2015041218A1 (en) 2013-09-17 2015-03-26 株式会社カネカ Novel antibody purification method and antibody obtained therefrom, and novel antibody purification method using cation exchanger and antibody obtained therefrom
US10519195B2 (en) 2013-09-17 2019-12-31 Kaneka Corporation Antibody purification method, antibody obtained therefrom, novel antibody purification method using cation exchanger, and antibody obtained therefrom

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