JPH0431669B2 - - Google Patents

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Publication number
JPH0431669B2
JPH0431669B2 JP58020995A JP2099583A JPH0431669B2 JP H0431669 B2 JPH0431669 B2 JP H0431669B2 JP 58020995 A JP58020995 A JP 58020995A JP 2099583 A JP2099583 A JP 2099583A JP H0431669 B2 JPH0431669 B2 JP H0431669B2
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Japan
Prior art keywords
particles
immobilized
biologically active
hgg
aminated
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Japanese (ja)
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JPS59146589A (en
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Publication of JPS59146589A publication Critical patent/JPS59146589A/en
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  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Peptides Or Proteins (AREA)

Description

【発明の詳现な説明】[Detailed description of the invention]

本発明は生物孊的に掻性な物質の固定化方法に
関する。 酵玠、抗原、抗䜓などの生物孊的に掻性な物質
を固盞担䜓に固定化する方法は数倚く知られおい
る。その䞭でも簡䟿で経枈的なのはアミノ基を有
する担䜓にグルタルアルデヒドを結合剀に甚いお
固定化する方法である。この方法が適甚できるた
めには、生物孊的掻性物質がアミノ基を有するこ
ずが必芁であるが、酵玠、抗原、抗䜓などの生物
孊的掻性物質の倧郚分はアミノ基を有するので、
グルタルアルデヒドによ぀お担䜓に固定化するこ
ずが可胜である。 しかし、本発明者らは䞊蚘グルタルアルデヒド
法による生物孊的掻性物質の固定化法を詳现に怜
蚎した結果、グルタルアルデヒドにより固定化し
た生物孊的掻性物質固定化物には、実甚䞊奜たし
くない性質のあるこずが明かにな぀た。すなわち
グルタルアルデヒドを結合剀に甚いお生物孊的掻
性物質を固定化した固盞には、さらに蛋癜質が吞
着しやすい。たたグルタルアルデヒドを結合剀に
甚いお生物孊的掻性物質を固定化した固盞に血挿
たたは血枅が接觊するず補䜓が掻性化される。こ
れらの性質は生物孊的掻性物質固定化物ずくに免
疫孊的掻性物質固定化物を医孊的蚺断ないし治療
に利甚する堎合に奜たしくない。たずえば攟射免
疫枬定、酵玠免疫枬定、蛍光免疫枬定などの暙識
免疫枬定においおは、結合した暙識免疫掻性物質
ず遊離の暙識免疫掻性物質ずの分離を容易にする
目的で、結合のパヌトナヌずなる生物孊的掻性物
質を固盞担䜓に固定化しお免疫掻性物質ず反応さ
せるが、その際に怜䜓䞭の蛋癜質たたは暙識免疫
掻性物質が固盞に非特異的に吞着するず枬定の粟
床を悪くする。たた免疫孊的掻性物質を固定化し
た埮粒子状担䜓ず怜䜓溶液を反応させお、凝集の
有無により被枬定物質を怜知する方法は免疫血枅
孊的怜査でしばしば甚いられるが、怜䜓䞭の成分
の非特異的吞着により非特異的凝集が起こるこず
は怜査の劚げになる。たた、近幎免疫掻性物質や
酵玠などの固定化物ず血液ないし血挿ずを䜓倖で
接觊させお血䞭の有害成分を陀去したのち、血液
ないし血挿を䜓内に戻すこずにより血液を浄化す
る方法が難病に察する新しい治療法ずしお泚目さ
れおいる。しかし、この堎合生物孊的掻性物質固
定化物ず血液ないし血挿が接觊したずきに血䞭の
補䜓が掻性化されるず被治療者がシペツクを起こ
す危険がある。 䞊蚘の事情を考察しお、本発明者らはグルタル
アルデヒド法の利点は保持し぀぀、欠点を克服し
た生物孊的掻性物質の固定化法を怜蚎した結果、
本発明に到達した。 本発明はアミノ基を有する生物孊的に掻性なア
ミノ基を有する担䜓に固定化するにあた぀お、結
合剀ずしお倚糖類の酞化生成物を、担䜓ずしおグ
リセルメタアクリレヌトの単独たたは共重合
䜓のアミノ化物、ヒドロキシメチルメタアク
リレヌトの単独たたは共重合䜓のアミノ化物、た
たはアクリルアミドの単独たたは共重合䜓のホフ
マン分解生成物を甚いるこずを特城ずする生物孊
的掻性物質の固定化法を提䟛するものである。 本発明方法に甚いる倚糖類は酞化剀による酞化
生成物が氎溶性であれば、䞭性、酞性、塩基性の
いずれでもさし぀かえない。奜適な倚糖類の䟋を
挙げれば、デキストラン、デキストラン硫酞ナト
リりム、−アミノ−−ヒドロキシポロピルデ
キストラン、柱粉、デキストリン、ヒドロキシ゚
チルセルロヌス、ヒドロキシプロピルセルロヌ
ス、カルボキシメチルセルロヌスおよびそのナト
リりム塩、アラビアゎム、アルギン酞およびその
ナトリりム塩、ヘパリン、コンドロむチン硫酞お
よびそのナトリりム塩、ヒアルロン酞などであ
る。 倚糖類を酞化させるための酞化剀ずしおは、具
䜓的には、クロム酞、四酢酞鉛、過ペり玠酞、ホ
ヌドシル化合物たずえば、酢酞ペヌドシルベン
れンC6H5OCOCH32、酞玠酢酞コバルト
を觊媒ずしお、ペルオキ゜硫酞−銀塩、塩化
銅、氎酞化銅、タリりム塩、タリりム
塩、酞性硫酞セリりム、ビスマス酞塩、過酞化
ニツケル、キセノン酞、陜極酞化等が挙げられ
る。特に過ペり玠酞、四酢酞鉛が奜たしく甚いら
れる。過ペり玠酞は遊離の過ペり玠酞を甚いお
も、過ペり玠ナトリりム、過ペり玠酞カリりムな
どの塩類を甚いおもよい。 倚糖類の酞化反応における倚糖類ず酞化剀ずの
仕蟌比は、重量でから200の範囲が奜
適である。たた反応枩床は〜40℃、pHは〜
10が奜適である。 担䜓はアミノ基を有する固䜓であればよく、ず
くに限定はないが、成圢の䟿からは有機高分子重
合䜓がずくに奜たしい。担䜓の圢䜓は球、円柱、
円板、詊隓管、円筒、繊維、膜、粒子、網、マむ
クロトレむ、螺旋などの目的に合臎すればどのよ
うなものでもよい。担䜓の材料ずしお奜たしい有
機高分子重合䜓の若干䟋を挙げれば、スチレンの
単独たたは共重合䜓のアミノ化物、アクリル酞た
たはメタクリル酞のグリシゞル゚ステルの単独た
たは共重合䜓のアミノ化物、アクリルニトリルの
単独たたは共重合䜓の氎玠化物、アクリルアミド
の単独たたは共重合䜓のホフマン分解生成物、ア
クリル酞たたはメタクリル酞の単独たたは共重合
䜓のヒドラゞドなどである。䞭でも芪氎性重合䜓
が奜たしく、䟋えばグリセルメタアクリレヌ
トの単独たたは共重合䜓のアミノ化物、ヒドロキ
シ゚チルメタアクリレヌトの単独たたは共重
合䜓のアミノ化物、アクリルアミドの単独たたは
共重合䜓のホフマン分解生成物等が等に奜たしく
甚いられる。 担䜓に生物孊的掻性物質を固定化するに圓぀お
は、担䜓、生物孊的掻性物質および倚糖の過ペり
玠酢酞化物の者を同時に混合しお反応させおも
よいが、生物孊的掻性物質の掻性䜎䞋を避けるた
めには、たず担䜓を倚糖の過ペり玠酞酞化物で凊
理した埌、生物孊的掻性物質ず接觊させお固定化
するのがよい。 固定化の察象ずなる生物孊的掻性物質の䟋を挙
げれば、アスパラギナヌれ・りレアヌれなどの酵
玠類、ヒト絚毛性コナドトロピン・卵胞刺激ホル
モン・甲状腺刺激ホルモンなどのホルモンずそれ
に察する抗䜓、トレポネヌマパリダム・型たた
は型肝炎りむルス・颚疹りむルス・トキプラズ
マ・マむコプラズマ・溶連菌などの病原䜓の抗原
およびそれに察する抗䜓、α−プトプロテむ
ン・癌胚抗原などの癌関連抗原ずそれに察する抗
䜓、リボ栞酞およびデオキシリボ栞酞ずそれに察
する抗䜓、IgG・IgM・IgA・IgD・IgEなどの免
疫グロブリンずそれに察する抗䜓、熱凝集IgG、
リりマチ因子、反応性蛋癜ずその抗䜓、CIq・
CIr・CIs・C2・C3・C4・C5・C6・C7・C8・C9
などの補䜓ずそれに察する抗䜓、各皮アレルゲ
ン、プロテむン、コングルチニン、むムノコン
グルチニン、コンカナバリンなどのコングルチ
ン、各皮組織適合抗原およびそれに察する抗䜓な
どである。 以䞋実斜䟋を挙げお本発明を具䜓的に説明す
る。 〔実斜䟋 〕 蛍光コロむドの調補 メチルメタクリレヌト、グリシゞルメタクリレ
ヌト、メタクリル酞、スルホプロピルメタクリレ
ヌトナトリりム塩、゚チレングリコヌルゞメタク
リレヌトを、50201510のモル比で混合
し、0.125ドデシル硫酞ナトリりムSDS氎
溶液にこれらモノマヌの合蚈重量が10ずなるよ
うに加え、窒玠雰囲気䞋で激しく攪拌し、モノマ
ヌを乳化させた。重合は、1mMの過硫酞アンモ
ニりムを開始剀ずしお60℃で玄1.5時間おこな぀
た。次に反応液䞭の未反応のモノマヌを四塩化炭
玠で抜出し陀去した。埗られた盎埄玄0.15ÎŒmの
コロむド埮粒子は、0.025硫酞氎溶液䞭で30℃
で時間加氎分解した埌、氎酞化ナトリりムで䞭
和し、掗浄した。掗浄は17500rpmで20分間遠心
するこずでおこな぀た。掗浄埌、コロむド粒子を
ゞメチルスルホキシドDMSO䞭に分散し、
DMSO䞭で12のアンモニアによりアミノ化し
た。 反応は35℃で3.5時間おこない、充分掗浄しお
アンモニアを陀去した。 別にアラビアゎムがmgml、過ペり玠酞ナト
リりムがmgmlの濃床になるように氎に溶かし
pHは3.0にな぀た、25℃で時間攪拌した。こ
の反応液にアミノ化コロむド粒子がになるよ
うに分散し、pHを10に調節しお、30℃で時間
攪拌した。反応埌、過剰のアラビアゎム酞化物を
遠心による掗浄操䜜で陀いた埌、コロむド粒子を
0.1ずなるようにDMSOに分散させ、0.2mgml
のゞクロロトリアゞニルアミノフルオレセむンず
40℃で時間反応させた。埗られた蛍光コロむド
粒子はpH10.0の0.1M NaHCO3−NaOH緩衝溶
液で掗浄した埌、0.1ずなるように同緩衝溶液
䞭に分散し保存した。 抗HGG抗䜓の蛍光コロむド粒子ぞの固定化 ダギで䜜補した抗HGGヒトIgG抗䜓IgG分
画Miles240Όml溶液500Όず0.1結合性
物質固定化甚蛍光コロむド粒子500Όずを混合
し、℃で日間反応させた。反応埌シアン氎玠
化ホり玠ナトリりムを15mg加えお、25℃で時間
反応させ、シツフ塩基を還元した。 埗られた抗HGG抗䜓結合コロむド粒子を
pH8.0の0.1Mトリス塩酞緩衝液で掗浄し、の
りシ血枅アルブミンBSAを含む同緩衝液䞭
に保存した。 以䞊のようにしお調補した抗HGG抗䜓固定化
コロむド粒子は週間た぀た埌も分散しおいた。
䞀方、グルタルアルデヒドを甚いおアミノ化コロ
むドに同様に抗HGG抗䜓を固定化したずころ、
玄週間でコロむドの凝集がおこり、䜿甚が困難
ずな぀おいた。 固盞甚粒子の調補 固盞ずしお䜿甚した粒子は特開昭56−141559に
蚘茉の方法により、グリシゞルメタクリレヌト、
−オキシ゚チルメタクリレヌト、およびトリ゚
チレングリコヌルゞメタクリレヌトの者を
87.59.54.8のモル比で混合し重合した粒子を
アミノ化し、加氎分解するこずにより調補した。
平均粒埄4.3ÎŒmの芪氎性粒子である。 固盞甚粒子ぞの抗HGG抗䜓の固定化 抗HGG抗血枅MilesをProtein −
SepharosePharmaciaのカラムクロマトグラ
フむヌによりIgG分画に粟補した。 調補した抗HGG抗血枅のIgG分画10mgmlを
含むpH7.2の0.15モルリン酞緩衝生理食塩氎
PBS䞭に濃床がになるように特開昭56−
141559蚘茉の方法に準じおグルタルアルデヒドで
掻性化した固盞甚アミノ化粒子を分散させ25℃で
時間反応させた。3000rpmの遠心操䜜で粒子を
沈降させるこずで粒子の掗浄をおこない、0.1
のりシ血枅アルブミンBSAず略蚘する。䞭に
分散し、抗HGG抗䜓固定化固盞粒子を調補した。 HGGの枬定 HGGMilesの10ÎŒmml〜1ngmlたでの10
倍皀釈系列各90Όを䜜補し、ガラス詊隓管
内での抗HGG抗䜓固定化固盞埮粒子分散液
100Όず振盪しながら25℃で時間反応させお、
3000rpmで遠沈、再分散させる操䜜により、固盞
埮粒子をトリス緩衝液で回掗浄し、HGGが抗
HGG抗䜓を介しお結合しおいる固盞を埗た。 抗HGG抗䜓固定化蛍光コロむド粒子0.02分
散液10Όずこの固盞粒子分散液100Όずを
詊隓管内で混合し、25℃で時間反応させ、固盞
をトリス緩衝液で充分掗浄した。掗浄埌、固盞粒
子をmlのトリス緩衝液に分散し、450nmの光で
励起しお530nmの蛍光匷床を枬定した。蛍光光床
蚈は日立650−40を䜿甚した。 HGG10Όml〜1Όmlたでの範囲におけ
るHGG濃床ず蛍光匷床ずの関係を第図に瀺し
た。 〔実斜䟋 〕 りシ血枅アルブミン固定化粒子の調補 特開昭56−141559に蚘茉した方法により調補し
た平均盎埄3.0ÎŒmのアミノ化芪氎性粒子を蒞留氎
にの濃床で分散させた。別にアルギン酞ナト
リりムを含む氎溶液に過ペり玠酞ナトリりム
をmgmlの濃床で添加し、25℃で時間攪拌し
おアルギン酞ナトリりムを酞化した。次いでアミ
ノ化芪氎性粒子分散液容ずアルギン酞ナトリり
ム酞化反応液容ず混合し、氎酞化ナトリりムで
pHを10に調節し、30℃で30分間攪拌した。次に
粒子をPBSで掗浄し、PBS䞭にの濃床で分
散させた。 䞊蚘粒子分散液ず等容のBSAの
mgmlPBS溶液を混合し、30℃で30分攪拌しお、
BSAを粒子に固定化した。BSA固定化粒子を
PBSで掗浄埌、ヒト血枅アルブミンを添加
したPBSに粒子含量が1.25になるよう分散させ
た。 りシ血枅アルブミン固定化粒子の掻性枬定 抗BSA抗血枅りサギ2.3mgmlをヒ
ト血枅アルブミン添加PBSで10倍に垌釈し、そ
れを字型マむクロプレヌト䞊でさらに2n倍に
垌釈した系列を぀くり、各り゚ルに25Όず぀入
れた。30分静眮埌各り゚ルにBSA固定化粒子分
散液25Όを加えおふりたぜ、時間静眮した。
コントロヌル実隓ずしお抗BSA抗血枅の代りの
健垞りサギ血枅を䜿甚しお同じ操䜜を行぀た。 時間静眮埌の沈降像を芳察した結果は衚の
通りであ぀た。
The present invention relates to a method for immobilizing biologically active substances. Many methods are known for immobilizing biologically active substances such as enzymes, antigens, and antibodies onto solid supports. Among these, a simple and economical method is to immobilize glutaraldehyde on a carrier having an amino group using a binder. In order for this method to be applicable, it is necessary that the biologically active substance has an amino group, but since most biologically active substances such as enzymes, antigens, and antibodies have amino groups,
Immobilization on carriers is possible with glutaraldehyde. However, as a result of a detailed study of the method for immobilizing biologically active substances using the glutaraldehyde method, the present inventors found that biologically active substances immobilized by glutaraldehyde have properties that are undesirable for practical use. Something became clear. That is, proteins are more likely to be adsorbed to a solid phase in which a biologically active substance is immobilized using glutaraldehyde as a binder. Furthermore, when plasma or serum comes into contact with a solid phase on which a biologically active substance is immobilized using glutaraldehyde as a binding agent, complement is activated. These properties are unfavorable when a biologically active substance immobilized product, particularly an immunologically active substance immobilized product, is used for medical diagnosis or treatment. For example, in labeled immunoassays such as radioimmunoassays, enzyme immunoassays, and fluorescence immunoassays, the binding partner biological An objectively active substance is immobilized on a solid phase carrier and reacted with the immunoactive substance, but at this time, if the protein in the sample or the labeled immunoactive substance adsorbs nonspecifically to the solid phase, measurement accuracy will deteriorate. In addition, a method in which a particulate carrier immobilized with an immunologically active substance is reacted with a sample solution and the analyte is detected based on the presence or absence of agglutination is often used in immunoserological tests; Nonspecific aggregation caused by specific adsorption hinders testing. In addition, in recent years, a method of purifying blood by bringing immobilized substances such as immune-activating substances and enzymes into contact with blood or plasma outside the body to remove harmful components from the blood and then returning the blood or plasma to the body has been developed to treat intractable diseases. It is attracting attention as a new treatment method. However, in this case, if the complement in the blood is activated when the immobilized biologically active substance comes into contact with blood or plasma, there is a risk that the patient will suffer a shock. Considering the above circumstances, the present inventors investigated a method for immobilizing biologically active substances that overcomes the drawbacks while retaining the advantages of the glutaraldehyde method.
We have arrived at the present invention. The present invention uses a polysaccharide oxidation product as a binder and glycer (meth)acrylate alone or copolymerized as a carrier for immobilization on a biologically active carrier having an amino group. A method for immobilizing a biologically active substance, characterized by using an aminated product of a polymer, an aminated product of a single or copolymer of hydroxymethyl (meth)acrylate, or a Hofmann degradation product of a single or copolymer of acrylamide. It provides: The polysaccharide used in the method of the present invention may be neutral, acidic or basic, as long as the oxidation product produced by the oxidizing agent is water-soluble. Examples of suitable polysaccharides include dextran, dextran sodium sulfate, 1-amino-2-hydroxypropyldextran, starch, dextrin, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose and its sodium salt, gum arabic, alginic acid and Its sodium salt, heparin, chondroitin sulfate and its sodium salt, hyaluronic acid, etc. Examples of oxidizing agents for oxidizing polysaccharides include chromic acid, lead tetraacetate, periodic acid, hodosyl compounds (for example, iodosylbenzene acetate C 6 H 5 I (OCOCH 3 ) 2 ), and oxygen. (using cobalt acetate as a catalyst), peroxosulfuric acid-silver salt, copper chloride, copper hydroxide, thallium salt, thallium salt, acidic cerium sulfate, bismuthate, nickel peroxide, xenonic acid, anodic oxidation, and the like. In particular, periodic acid and lead tetraacetate are preferably used. As the periodic acid, free periodic acid may be used, or salts such as sodium periodate and potassium periodate may be used. The charging ratio of polysaccharide and oxidizing agent in the oxidation reaction of polysaccharide is preferably in the range of 1:2 to 200:1 by weight. In addition, the reaction temperature is 0 to 40℃, and the pH is 2 to 40℃.
10 is preferred. The carrier may be any solid having an amino group, and is not particularly limited, but organic polymers are particularly preferred from the viewpoint of ease of molding. The shape of the carrier is spherical, cylindrical,
Any material suitable for the purpose may be used, such as a disk, test tube, cylinder, fiber, membrane, particle, mesh, microtray, or spiral. Some examples of organic polymers preferable as carrier materials include aminated styrene alone or copolymers, aminated acrylic acid or methacrylic acid glycidyl esters alone or copolymers, and acrylonitrile alone. or a hydride of a copolymer, a Hofmann decomposition product of acrylamide alone or a copolymer, a hydrazide of an acrylic acid or a methacrylic acid alone or a copolymer, and the like. Among these, hydrophilic polymers are preferred, such as aminated products of glycer (meth)acrylate alone or copolymers, aminated products of hydroxyethyl (meth)acrylate alone or copolymers, and Hofmann degradation products of acrylamide alone or copolymers. products etc. are preferably used. When immobilizing a biologically active substance on a carrier, the carrier, the biologically active substance, and the polysaccharide periodate acetate may be mixed and reacted at the same time, but the biologically active substance In order to avoid a decrease in the activity of the carrier, it is preferable to first treat the carrier with periodate oxide of the polysaccharide and then contact it with the biologically active substance to immobilize it. Examples of biologically active substances that can be immobilized include enzymes such as asparaginase and urease, hormones such as human chorionic conadotropin, follicle-stimulating hormone, and thyroid-stimulating hormone, and antibodies against them, Treponema pallidum and A. Antigens of pathogens such as type or B hepatitis virus, rubella virus, toxplasma, mycoplasma, and streptococci and antibodies against them, cancer-related antigens such as α-fetoprotein and carcinoembryonic antigen and antibodies against them, ribonucleic acid and deoxyribonucleic acid and antibodies against it, immunoglobulins such as IgG, IgM, IgA, IgD, and IgE and antibodies against them, heat-agglutinated IgG,
Rheumatoid factor, C-reactive protein and its antibodies, CIq・
CIr・CIs・C2・C3・C4・C5・C6・C7・C8・C9
These include complements and antibodies against them, various allergens, conglutins such as protein A, conglutinin, immunoconglutinin, and concanavalin, various histocompatibility antigens and antibodies against them. The present invention will be specifically explained below with reference to Examples. [Example 1] (Preparation of fluorescent colloid) Methyl methacrylate, glycidyl methacrylate, methacrylic acid, sulfopropyl methacrylate sodium salt, and ethylene glycol dimethacrylate were mixed in a molar ratio of 50:20:15:5:10, and 0.125%. These monomers were added to a sodium dodecyl sulfate (SDS) aqueous solution so that the total weight was 10%, and the monomers were emulsified by stirring vigorously under a nitrogen atmosphere. Polymerization was carried out at 60°C for about 1.5 hours using 1mM ammonium persulfate as an initiator. Next, unreacted monomers in the reaction solution were removed by extraction with carbon tetrachloride. The obtained colloidal particles with a diameter of approximately 0.15 Όm were heated at 30°C in a 0.025% sulfuric acid aqueous solution.
After hydrolysis for 1 hour, the mixture was neutralized with sodium hydroxide and washed. Washing was performed by centrifugation at 17500 rpm for 20 minutes. After washing, the colloidal particles were dispersed in dimethyl sulfoxide (DMSO) and
Aminated with 12% ammonia in DMSO. The reaction was carried out at 35°C for 3.5 hours, and ammonia was removed by thorough washing. Separately, gum arabic was dissolved in water to a concentration of 4 mg/ml and sodium periodate was dissolved in water to a concentration of 5 mg/ml (pH reached 3.0), and the mixture was stirred at 25°C for 1 hour. Aminated colloid particles were dispersed in this reaction solution to a concentration of 1%, the pH was adjusted to 10, and the mixture was stirred at 30° C. for 3 hours. After the reaction, excess gum arabic oxide was removed by centrifugal washing, and the colloidal particles were
Dispersed in DMSO to 0.1%, 0.2mg/ml
dichlorotriazinylaminofluorescein and
The reaction was carried out at 40°C for 1 hour. The obtained fluorescent colloid particles were washed with a 0.1M NaHCO 3 -NaOH buffer solution of pH 10.0, and then dispersed in the same buffer solution to a concentration of 0.1% and stored. (Immobilization of anti-HGG antibody to fluorescent colloid particles) 500 Ό of anti-HGG (human IgG) antibody IgG fraction (Miles) 240 Όg/ml solution prepared in goat and 500 Ό of fluorescent colloid particles for immobilizing 0.1% binding substance. The mixture was mixed and reacted at 4°C for 2 days. After the reaction, 15 mg of sodium cyanoborate was added and reacted at 25°C for 1 hour to reduce Schiff's base. The obtained anti-HGG antibody-bound colloid particles
It was washed with 0.1M Tris-HCl buffer at pH 8.0 and stored in the same buffer containing 1% bovine serum albumin (BSA). The anti-HGG antibody-immobilized colloid particles prepared as described above remained dispersed even after 4 weeks.
On the other hand, when anti-HGG antibodies were similarly immobilized on aminated colloids using glutaraldehyde,
The colloid agglomerated in about one week, making it difficult to use. (Preparation of particles for solid phase) Particles used as a solid phase were prepared by preparing glycidyl methacrylate, glycidyl methacrylate,
2-oxyethyl methacrylate and triethylene glycol dimethacrylate
It was prepared by aminating and hydrolyzing particles that were mixed and polymerized at a molar ratio of 87.5:9.5:4.8.
These are hydrophilic particles with an average particle size of 4.3 ÎŒm. (Immobilization of anti-HGG antibody to solid phase particles) Anti-HGG antiserum (Miles) was added to Protein A-
The IgG fraction was purified by Sepharose (Pharmacia) column chromatography. The IgG fraction of the prepared anti-HGG antiserum was dissolved in 0.15 molar phosphate buffered saline (PBS) at pH 7.2 containing 10 mg/ml of the anti-HGG antiserum to a concentration of 1%.
According to the method described in No. 141559, aminated solid phase particles activated with glutaraldehyde were dispersed and reacted at 25°C for 2 hours. Particles are washed by sedimentation using centrifugation at 3000 rpm, resulting in a concentration of 0.1%.
was dispersed in bovine serum albumin (abbreviated as BSA) to prepare anti-HGG antibody-immobilized solid-phase particles. (HGG measurement) HGG (Miles) 10 ÎŒm/ml to 1ng/ml
Prepare a series of double dilutions (90Ό each) and place a 1% anti-HGG antibody-immobilized solid phase microparticle dispersion in a glass test tube.
Incubate at 25°C for 1 hour while shaking with 100Ό
By centrifugation and redispersion at 3000 rpm, the solid phase particles were washed three times with Tris buffer, and HGG was
A solid phase bound via HGG antibody was obtained. 10Ό of a 0.02% dispersion of anti-HGG antibody-immobilized fluorescent colloidal particles and 100Ό of this 1% dispersion of solid phase particles were mixed in a test tube, reacted for 1 hour at 25°C, and the solid phase was thoroughly washed with Tris buffer. After washing, the solid phase particles were dispersed in 2 ml of Tris buffer, excited with 450 nm light, and the fluorescence intensity at 530 nm was measured. A Hitachi 650-40 fluorometer was used. The relationship between HGG concentration and fluorescence intensity in the range of 10 Όg/ml to 1 Όg/ml of HGG is shown in FIG. [Example 2] (Preparation of bovine serum albumin-immobilized particles) Aminated hydrophilic particles with an average diameter of 3.0 Όm prepared by the method described in JP-A-56-141559 were dispersed in distilled water at a concentration of 1%. . Separately, sodium periodate was added at a concentration of 1 mg/ml to an aqueous solution containing 1% sodium alginate, and the mixture was stirred at 25° C. for 1 hour to oxidize the sodium alginate. Next, 2 volumes of the aminated hydrophilic particle dispersion and 1 volume of the sodium alginate oxidation reaction solution were mixed, and the mixture was mixed with sodium hydroxide.
The pH was adjusted to 10 and stirred at 30°C for 30 minutes. The particles were then washed with PBS and dispersed in PBS at a concentration of 5%. 1 of the above particle dispersion (5%) and an equal volume of BSA
Mix the mg/ml PBS solution and stir at 30°C for 30 minutes.
BSA was immobilized on particles. BSA immobilized particles
After washing with PBS, the particles were dispersed in PBS supplemented with 1% human serum albumin so that the particle content was 1.25%. (Activity measurement of bovine serum albumin-immobilized particles) Anti-BSA antiserum (rabbit) (2.3 mg/ml) was diluted 10 times with PBS supplemented with 1% human serum albumin, and further diluted with 2n on a U-shaped microplate. A series of two-fold dilutions was made, and 25 Όl was added to each well. After standing still for 30 minutes, 25Ό of BSA-immobilized particle dispersion was added to each well, mixed, and left standing for 2 hours.
As a control experiment, the same procedure was performed using healthy rabbit serum instead of anti-BSA antiserum. Table 1 shows the results of observing the sedimentation image after standing for 2 hours.

〔実斜䟋 〕[Example 3]

蒞留氎にデキストランT70および過ペり玠酞ナ
トリりムの䞡者を、濃床がそれぞれ10mgmlおよ
びmgmlになるように溶解し、25℃で時間攪
拌した。この反応液に実斜䟋で甚いた平均粒子
4.3ÎŒmの固盞甚アミノ化粒子をの濃床で分散
させ、少量の氎酞化ナトリりムず炭酞氎玠ナトリ
りムでpHを9.6に調節し、25℃で時間攪拌し
た。反応埌、粒子をpH9.6の緩衝溶液氎酞化ナ
トリりム炭酞氎玠ナトリりムで掗浄し、同じ
緩衝溶液にIgGを溶解した溶液にポリマヌ濃床が
になるように分散させ、25℃で時間攪拌し
お、粒子にIgGを固定化した。比范のため、テキ
ストランの過ペり玠酞による酞化物の代りにグル
タルアルデヒドを甚いお同様にIgGを固盞甚アミ
ノ化粒子に固定化した。IgG固定化粒子はシ
アン氎玠化ホり玠ナトリりム溶液pH4.0に分
散しお濃床、25℃で30分攪拌した埌、ト
リスヌ塩酞緩衝溶液pH7.5で掗浄し、PBSäž­
にの濃床で分散させお冷蔵庫䞭で保存した。
粒子に固定化されたIgGの量は塩酞で加氎分解埌
アミノ酞分析を行うこずにより定量した。 このIgG固定化粒子による補䜓掻性化の有無は
次のようにしお詊隓した。すなわち、粒子分
散液ず等容の新鮮ヒト血枅ずを混合し、37℃で15
分攟眮した。次にPBSで粒子を沈浄埌PBSに
の濃床で再び分散し、スラむドガラス䞊で、
PBSにより100倍に垌釈した抗補䜓、抗血枅り
サギず混合し、凝集の有無を肉県で刀定した。
その結果を衚にたずめお瀺した。
Dextran T70 and sodium periodate were both dissolved in distilled water to a concentration of 10 mg/ml and 2 mg/ml, respectively, and stirred at 25°C for 1 hour. The average particles used in Example 1 in this reaction solution
Aminated particles for solid phase of 4.3 Όm were dispersed at a concentration of 1%, the pH was adjusted to 9.6 with a small amount of sodium hydroxide and sodium hydrogen carbonate, and the mixture was stirred at 25° C. for 1 hour. After the reaction, the particles were washed with a pH 9.6 buffer solution (sodium hydroxide + sodium hydrogen carbonate), dispersed in a solution of IgG dissolved in the same buffer solution to a polymer concentration of 1%, and incubated at 25°C for 3 IgG was immobilized on the particles by stirring for a period of time. For comparison, IgG was similarly immobilized on solid-phase aminated particles using glutaraldehyde instead of periodic acid oxide in Textran. The IgG-immobilized particles were dispersed in a 1% sodium cyanogen borohydride solution (pH 4.0) (concentration 1%), stirred at 25°C for 30 minutes, and then washed with a Tris-HCl buffer solution (pH 7.5). It was dispersed in PBS at a concentration of 1% and stored in a refrigerator.
The amount of IgG immobilized on the particles was determined by hydrolysis with hydrochloric acid and amino acid analysis. The presence or absence of complement activation by the IgG-immobilized particles was tested as follows. That is, a 1% particle dispersion and an equal volume of fresh human serum were mixed and incubated at 37℃ for 15 minutes.
I left it for a minute. Next, after precipitating the particles with PBS, add 1
Disperse again on a glass slide at a concentration of %
The mixture was mixed with anti-complement and anti-serum (rabbit) diluted 100 times with PBS, and the presence or absence of agglutination was determined visually.
The results are summarized in Table 2.

【衚】 ただし、凝集の刀定に圓぀おはコントロヌルず
しお垞に健垞りサギ血枅を䜿甚した。衚から明
らかなように、グルタルアルデヒドを結合剀ずし
おIgGを固定化した堎合には、掻性化された補䜓
成分が固盞に結合しおいるが、デキストラン酞化
物を結合剀に甚いた堎合には、補䜓成分の固盞ぞ
の結合は皆無ないし僅少である。
[Table] However, healthy rabbit serum was always used as a control when determining agglutination. As is clear from Table 2, when IgG was immobilized using glutaraldehyde as a binding agent, activated complement components were bound to the solid phase, but when dextran oxide was used as a binding agent, the activated complement components were bound to the solid phase. There is no or minimal binding of complement components to the solid phase.

【図面の簡単な説明】[Brief explanation of drawings]

第図は実斜䟋のHGG枬定結果を瀺す図で
ある。
FIG. 1 is a diagram showing the HGG measurement results of Example 1.

Claims (1)

【特蚱請求の範囲】[Claims]  アミノ基を有する生物孊的に掻性な物質をア
ミノ基を有する担䜓に固定化するにあた぀お、結
合剀ずしお倚糖類の酞化生成物を、担䜓ずしおグ
リセルメタアクリレヌトの単独たたは共重合
䜓のアミノ化物、ヒドロキシメチルメタアク
リレヌトの単独たたは共重合䜓のアミノ化物、た
たはアクリルアミドの単独たたは共重合䜓のホフ
マン分解生成物を甚いるこずを特城ずする生物孊
的掻性物質の固定化法。
1. When immobilizing a biologically active substance having an amino group on a carrier having an amino group, an oxidation product of a polysaccharide is used as a binder and glycer (meth)acrylate alone or copolymerized as a carrier. A method for immobilizing a biologically active substance, characterized by using an aminated product of a polymer, an aminated product of a single or copolymer of hydroxymethyl (meth)acrylate, or a Hofmann degradation product of a single or copolymer of acrylamide. .
JP2099583A 1983-02-10 1983-02-10 Immobilization of biologically active substance Granted JPS59146589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2099583A JPS59146589A (en) 1983-02-10 1983-02-10 Immobilization of biologically active substance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2099583A JPS59146589A (en) 1983-02-10 1983-02-10 Immobilization of biologically active substance

Publications (2)

Publication Number Publication Date
JPS59146589A JPS59146589A (en) 1984-08-22
JPH0431669B2 true JPH0431669B2 (en) 1992-05-27

Family

ID=12042698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2099583A Granted JPS59146589A (en) 1983-02-10 1983-02-10 Immobilization of biologically active substance

Country Status (1)

Country Link
JP (1) JPS59146589A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387662A (en) * 1989-08-31 1991-04-12 Tokai Univ Plastic plate for biochemical measurement and production thereof and biochemical measure method using this plate
CN102732500B (en) * 2012-07-04 2013-09-04 浙江农林倧孊 Preparation method of oxidized dialdehyde cellulose immobilized urease

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5456895A (en) * 1977-09-19 1979-05-08 Hoffmann La Roche Novel latex polymer and method of producing same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5456895A (en) * 1977-09-19 1979-05-08 Hoffmann La Roche Novel latex polymer and method of producing same

Also Published As

Publication number Publication date
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