JP2011200224A - Evaluation device and evaluation method of percutaneous absorption - Google Patents

Evaluation device and evaluation method of percutaneous absorption Download PDF

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JP2011200224A
JP2011200224A JP2011045294A JP2011045294A JP2011200224A JP 2011200224 A JP2011200224 A JP 2011200224A JP 2011045294 A JP2011045294 A JP 2011045294A JP 2011045294 A JP2011045294 A JP 2011045294A JP 2011200224 A JP2011200224 A JP 2011200224A
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evaluation
percutaneous absorption
skin
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cell
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Daisuke Yoshida
大介 吉田
Yukiko Matsumoto
ゆき子 松本
Shoichi Yahagi
彰一 矢作
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Cosmos Technical Center Co Ltd
Nikko Chemicals Co Ltd
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Nikko Chemicals Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an evaluation device of percutaneous absorption, capable of simultaneously and easily measuring a skin permeation amount of substances and effectiveness and/or safety evaluation of penetrated substances, and to provide an evaluation method thereof.SOLUTION: It is found out that the skin permeation amount of substances and effectiveness and/or safety evaluation of permeated substances can be simultaneously measured by using a device using epidermis equivalents such as culture skin and cells for evaluation such as fibroblast, fat cell, vascular endothelial cell, Langerhans cell, monocyte cell and chromocyte.

Description

本発明は、物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に測定できることを特徴とする経皮吸収評価装置及びその評価方法に関する。   The present invention relates to a percutaneous absorption evaluation apparatus and an evaluation method thereof capable of simultaneously measuring the amount of substance permeated through the skin and the evaluation of the effectiveness and / or safety of the permeated substance.

従来、物質の経皮吸収については、フランツ型セルやside−by−sideセルなどを利用して皮膚を透過した物質量を測定し、得られた累積透過量からFluxなどの物質透過パラメータを算出し、物質そのもの、あるいは製剤のポテンシャルを評価するものである。一方、物質の有効性及び/又は安全性の評価は、細胞に直接物質を暴露させてその生理活性を評価してきた。そのため、皮膚に吸収された物質が、実際に標的とする細胞までどのくらい送達されるのか、そして、送達された物質が本当に有効性及び/又は安全性を示すのかを同時に評価する方法はなく、間接的に考察するのみであった。   Conventionally, for percutaneous absorption of substances, the amount of substance that has permeated through the skin is measured using a Franz-type cell or side-by-side cell, and the substance permeation parameters such as flux are calculated from the obtained accumulated permeation amount. The potential of the substance itself or the drug product is evaluated. On the other hand, evaluation of the effectiveness and / or safety of a substance has been performed by exposing the substance directly to cells and evaluating its physiological activity. Therefore, there is no way to evaluate at the same time how much the substance absorbed into the skin is delivered to the target cells and whether the delivered substance really shows efficacy and / or safety, but indirectly It was only considered.

ところで、共培養物を利用した技術及び評価方法としては、賦活化する物質をスクリーニングすること等に応用できる共培養物に関する技術(特許文献1)や、アレルゲンの評価で2つの細胞を共培養したものを利用する技術(特許文献2)のなどが報告されている。また、メラノサイト及びケラチノサイトを共培養してメラノサイトからケラチノサイトへのメラノソーム転送を検出する方法について報告されている(特許文献3)。しかしながら、一般には、安定かつ効率的に共培養物を作成する条件を見出すには、培地の最適化やpHの調整など非常に煩雑な作業を要する。   By the way, as a technique and an evaluation method using a co-culture, two cells were co-cultured by a technique (Patent Document 1) applicable to screening a substance to be activated (Patent Document 1) or allergen evaluation. A technique using a device (Patent Document 2) has been reported. Further, a method for detecting melanosome transfer from melanocytes to keratinocytes by co-culturing melanocytes and keratinocytes has been reported (Patent Document 3). However, in general, in order to find a condition for stably and efficiently preparing a co-culture, very complicated work such as optimization of a medium and adjustment of pH is required.

また、物質の有効性や安全性を容易に試験するための装置として、再構成組織のサンプルと、物理的、生物学的及び/又は化学的刺激がサンプルに与える影響、又はサンプルが物理的、生物学的及び/又は化学的刺激に与える影響を検出システムと関連づけた装置や(特許文献4)、再構成表皮と免疫細胞を共培養することで、より皮膚に近い安定な評価モデルとなりうることが報告されているが、物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に測定できることを特徴とする経皮吸収評価装置及びその評価方法についての報告はこれまでにない。   In addition, as a device for easily testing the effectiveness and safety of substances, the sample of reconstituted tissue and the effects of physical, biological and / or chemical stimuli on the sample, or the sample is physically It can be a stable evaluation model that is closer to the skin by co-culturing an apparatus that associates the effect on biological and / or chemical stimulation with a detection system (Patent Document 4), or reconstructed epidermis and immune cells. However, there has been no report on a transdermal absorption evaluation device and its evaluation method characterized in that it can simultaneously measure the amount of substance permeated through the skin and the effectiveness and / or safety of the permeated substance. Absent.

特開2008−119010号公報JP 2008-1119010 A 特開2003−512626号公報JP 2003-512626 A 特開2005−249390号公報JP 2005-249390 A 特表2008−520199号公報Special table 2008-520199 gazette

M. Ishikawa et.al, Co-culture systems between U937 or THP-1 and Episkin as new in vitro skin sensitization models, VII World Congress on Alternatives & Animal Use in the Life Sciences, Final Programme, ID ABS: 567, p61, 2009M. Ishikawa et.al, Co-culture systems between U937 or THP-1 and Episkin as new in vitro skin sensitization models, VII World Congress on Alternatives & Animal Use in the Life Sciences, Final Program, ID ABS: 567, p61, 2009

上述の通り、従来、物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に測定できることを特徴とする経皮吸収評価装置及びその評価方法については知られていない。従って、新規の物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時かつ簡便に測定できる経皮吸収評価装置及びその評価方法を提供することを目的とする。   As described above, conventionally, a transdermal absorption evaluation apparatus and an evaluation method thereof that can simultaneously measure the amount of substance permeated through the skin and the effectiveness and / or safety of the permeated substance have not been known. Accordingly, it is an object of the present invention to provide a percutaneous absorption evaluation apparatus and an evaluation method thereof capable of simultaneously and simply measuring a skin permeation amount of a new substance and an effectiveness and / or safety evaluation of the permeated substance.

本発明者らは、物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に測定できることを特徴とする経皮吸収評価装置及びその評価方法について鋭意研究した結果、表皮等価物と、評価対象細胞とを用いた装置、より好ましくは表皮等価物として培養皮膚と評価対象細胞とを共培養した装置を用いることにより、物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に測定できることを見出し、本発明を完成するに至った。   As a result of earnest research on the percutaneous absorption evaluation apparatus and its evaluation method characterized in that the present inventors can simultaneously measure the skin permeation amount of the substance and the effectiveness and / or safety evaluation of the permeated substance. And a device using the cells to be evaluated, and more preferably using a device in which the cultured skin and the cells to be evaluated are co-cultured as the epidermis equivalent, Or it discovered that safety | security evaluation could be measured simultaneously and came to complete this invention.

本発明に記載の経皮吸収評価装置を用いることにより、従来、物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に困難だった評価を、簡便かつ迅速に測定できる。従って、物質及び/又は物質を含む外用組成物がもつ、皮膚に対する効果を直接的に測定できることから、実際に皮膚に塗布して有効に作用する物質及び/又は物質を含む外用組成物の開発を効率よくおこなうことができる。   By using the percutaneous absorption evaluation apparatus described in the present invention, it is possible to easily and quickly measure an evaluation that has been difficult at the same time because of the amount of permeation through the skin and the effectiveness and / or safety of the permeated substance. . Therefore, since the effect on the skin of the substance and / or the external composition containing the substance can be directly measured, the development of the external composition containing the substance and / or substance that acts effectively when actually applied to the skin. It can be done efficiently.

本発明に係る、経皮吸収評価装置である。It is a percutaneous absorption evaluation apparatus based on this invention. 本発明に係る、経皮吸収評価装置である。It is a percutaneous absorption evaluation apparatus based on this invention. 本発明に係る、細胞が培地中に浮遊している状態の経皮吸収評価装置である。It is a percutaneous absorption evaluation apparatus in the state where the cell floats in the culture medium based on this invention. 本発明の実施例1に係るEPISKINを用いた経皮吸収評価装置のセッティング図である。It is a setting figure of the percutaneous absorption evaluation apparatus using EPISKIN which concerns on Example 1 of this invention. 本発明の実施例1に係るRHEを用いた経皮吸収評価装置のセッティング図である。It is a setting figure of the percutaneous absorption evaluation apparatus using RHE which concerns on Example 1 of this invention.

以下、本発明の構成を更に詳細に説明する。
本発明に係わる経皮吸収評価装置は、表皮等価物と、評価対象細胞とを用いるものである。本発明に係わる経皮吸収評価装置は、物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に測定することができる。
Hereinafter, the configuration of the present invention will be described in more detail.
The transdermal absorption evaluation apparatus according to the present invention uses an epidermis equivalent and cells to be evaluated. The percutaneous absorption evaluation apparatus according to the present invention can simultaneously measure the amount of substance permeated through the skin and the evaluation of the effectiveness and / or safety of the permeated substance.

本発明で用いる表皮等価物としては、培養皮膚、シリコンフィルム、濾過膜、セルロース膜からなる群から選択される1種又は2種以上を挙げることができる。これらは特に限定されるものではないが、物質の代謝を含め、より皮膚に近い環境で測定することが望ましい場合は、再構成皮膚を用いて評価対象細胞と共培養して用いることが望ましいが、おおよその見当をつける場合など安価に評価する場合はその限りではない。   Examples of the epidermal equivalent used in the present invention include one or more selected from the group consisting of cultured skin, silicon film, filtration membrane, and cellulose membrane. These are not particularly limited, but when it is desirable to measure in an environment closer to the skin, including metabolism of the substance, it is desirable to use the reconstructed skin and co-culture with the cells to be evaluated. However, this is not the case when evaluating cheaply, such as when making approximate estimates.

培養再構成皮膚としては、RHE再生ヒト表皮モデル(SkinEthic社製)、EPISKIN再生ヒト表皮モデル(SkinEthic社製)、皮膚3次元モデルEPI−200・212・200X・606・606X・201(MatTek社製)、皮膚3次元モデルEFT−400・412(MatTek社製)、TESTSKINTM(TOYOBO社製)、LSE−high MATREXTM LDM(TOYOBO社製)、LabCyte EPI−MODEL、(J−TEC社製)などの市販品が挙げられるが、再構成皮膚の強度が強い点を考慮するとRHE再生ヒト表皮モデルおよび、EPISKIN再生ヒト表皮モデルを用いるのが望ましい。なお、種類の異なる単層培養細胞を共培養するためには、培地の最適化やpHの選定など非常に煩雑な作業を要するが、再構成皮膚を用いることで簡便に評価対象細胞との安定かつ効率的に共培養物を作成することができる。 As the cultured reconstructed skin, RHE regenerated human epidermis model (manufactured by SkinEthic), EPISKIN regenerated human epidermis model (manufactured by SkinEthic), three-dimensional skin model EPI-200 / 212 / 200X / 606 / 606X / 201 (manufactured by MatTek) ), Skin three-dimensional model EFT-400 / 412 (manufactured by MatTek), TESTSKIN (manufactured by TOYOBO), LSE-high MATREX LDM (manufactured by TOYOBO), LabCyte EPI-MODEL, (manufactured by J-TEC), etc. However, it is preferable to use the RHE regenerated human epidermis model and the EPISKIN regenerated human epidermis model in view of the strength of the reconstructed skin. Note that co-culture of different types of monolayer cultured cells requires extremely complicated operations such as medium optimization and pH selection. And a co-culture can be created efficiently.

本発明で用いる評価対象細胞としては、線維芽細胞、脂肪細胞、血管内皮細胞、ランゲルハンス細胞、単球細胞、色素細胞などが挙げられ、これらを1種又は2種以上用いることができる。これらの評価対象細胞は、有効性及び/又は安全性の評価目的によって適宜選択されるべきである。   Examples of evaluation target cells used in the present invention include fibroblasts, adipocytes, vascular endothelial cells, Langerhans cells, monocyte cells, pigment cells, and the like, and one or more of these can be used. These cells to be evaluated should be appropriately selected depending on the purpose of evaluating efficacy and / or safety.

有効性の評価に用いる細胞としては、特に限定されるものではないが、線維芽細胞、脂肪細胞、血管内皮細胞、色素細胞などが挙げられる。安全性の評価に用いる細胞としては、特に限定されるものではないが、ランゲルハンス細胞、単球細胞などが挙げられるほか、細胞毒性を評価する場合は、血管内皮細胞や線維芽細胞などを用いることもできる。   Although it does not specifically limit as a cell used for effectiveness evaluation, A fibroblast, an adipocyte, a vascular endothelial cell, a pigment cell etc. are mentioned. Cells used for safety evaluation are not particularly limited, but include Langerhans cells, monocyte cells, etc. In addition, when evaluating cytotoxicity, vascular endothelial cells, fibroblasts, etc. should be used. You can also.

評価対象細胞として、線維芽細胞を用いた場合、経皮吸収した物質が発現する線維芽細胞におけるコラーゲン産生作用、ヒアルロン酸産生作用、エラスチン産生作用、細胞増殖促進及び/又は抑制作用、各種サイトカイン産生促進及び/又は抑制作用の評価、フィブリリン産生作用、コラーゲナーゼなどのマトリクスメタロプロテアーゼ、セリンプロテアーゼ、システインプロテアーゼ、アスパラギン酸プロテアーゼなどの活性及び/又は産生阻害などのプロテアーゼ活性抑制作用などの評価をおこなうことができる。   When fibroblasts are used as cells to be evaluated, collagen production, hyaluronic acid production, elastin production, cell growth promotion and / or suppression, and various cytokine production in fibroblasts that express percutaneously absorbed substances. Evaluation of promotion and / or inhibition activity, fibrillin production activity, activity of matrix metalloprotease such as collagenase, serine protease, cysteine protease, aspartic protease, and / or inhibition of protease activity such as production inhibition Can do.

評価対象細胞として、脂肪細胞を用いた場合、経皮吸収した物質が発現する脂肪細胞における脂質分解作用、リパーゼ活性阻害、細胞増殖促進及び/又は抑制作用、各種サイトカイン産生促進及び/又は抑制作用などの評価をおこなうことができる。   When adipocytes are used as the cells to be evaluated, lipolysis action, lipase activity inhibition, cell growth promotion and / or suppression action, various cytokine production promotion and / or suppression action, etc. in adipocytes expressing transdermally absorbed substances Can be evaluated.

評価対象細胞として、血管内皮細胞を用いた場合、経皮吸収した物質が発現する血管内皮細胞における細胞増殖促進及び/又は抑制作用、一酸化窒素産生作用、各種サイトカイン産生促進及び/又は抑制作用などの評価をおこなうことができる。各種サイトカインとしては、特に限定されるものではないが、インターロイキン、インターフェロン、TGF、FGF、KGF、HGF、IGF、エイコサノイド、SCF、MCP及びCSFなどが挙げられる。これらの評価をすることで、抗炎症作用、抗老化作用、美白作用、などの有効性を評価することができる。   When vascular endothelial cells are used as the cells to be evaluated, cell proliferation promotion and / or suppression action, nitric oxide production action, various cytokine production promotion and / or inhibition action, etc. in vascular endothelial cells expressing the percutaneously absorbed substance Can be evaluated. Examples of various cytokines include, but are not limited to, interleukin, interferon, TGF, FGF, KGF, HGF, IGF, eicosanoid, SCF, MCP, and CSF. By performing these evaluations, the effectiveness of anti-inflammatory action, anti-aging action, whitening action, etc. can be evaluated.

評価対象細胞として、ランゲルハンス細胞を用いた場合、経皮吸収した物質が発現するランゲルハンス細胞における各種表面抗原産生促進及び/又は抑制作用などの評価をおこなうことができる。   When Langerhans cells are used as the cells to be evaluated, various surface antigen production promotion and / or inhibitory effects in Langerhans cells in which a percutaneously absorbed substance is expressed can be evaluated.

評価対象細胞として、単球細胞を用いた場合、経皮吸収した物質が発現する単球細胞における感作性などの評価をおこなうことができる。   When monocyte cells are used as the cells to be evaluated, it is possible to evaluate sensitization in monocyte cells in which a substance absorbed through the skin is expressed.

評価対象細胞として、色素細胞を用いた場合、経皮吸収した物質が発現する色素細胞におけるメラニン産生促進及び/又は抑制作用、チロシナーゼ活性促進及び/又は抑制作用、チロシナーゼ産生促進及び/又は抑制作用、各種サイトカイン産生促進及び/又は抑制作用の評価をおこなうことができる。   When pigment cells are used as cells to be evaluated, melanin production promotion and / or suppression action, tyrosinase activity promotion and / or inhibition action, tyrosinase production promotion and / or inhibition action in pigment cells in which a substance absorbed through the skin is expressed, Various cytokine production promotion and / or inhibitory effects can be evaluated.

評価対象となる物質は、主に化粧品及び/又は医薬品に利用できる成分を対象とし、そのまま皮膚等価物に塗布することもできるし、水、油性成分、各種溶媒などに溶解又は分散物として、更に乳化製剤として適用することもできる。また、化粧品、例えば抗老化用化粧品、美白用化粧品、保湿用化粧品、サンスクリーン化粧品、トイレタリー製品、医薬品製剤などを塗布することができる。   Substances to be evaluated mainly target components that can be used in cosmetics and / or pharmaceuticals, and can be applied directly to the skin equivalent, or dissolved or dispersed in water, oily components, various solvents, etc. It can also be applied as an emulsified preparation. In addition, cosmetics such as anti-aging cosmetics, whitening cosmetics, moisturizing cosmetics, sunscreen cosmetics, toiletry products, pharmaceutical preparations and the like can be applied.

化粧品及び/又は医薬品に利用できる成分のうち、生理活性成分としては、アスコルビン酸、アスコルビン酸リン酸エステルマグネシウム、パルミチン酸アスコルビル、ステアリン酸アスコルビル、テトライソパルミチン酸アスコルビル、アスコルビン酸グルコシド、アルブチン、トラネキサム酸及びその誘導体、エラグ酸、ルシノールなどの美白剤、グリチルリチン酸、グリチルレチン酸、アミノ酸、糖類、ムコ多糖、セラミド、ステロール及びその誘導体、リン脂質及びそれらの誘導体などの肌荒れ防止剤、レチノール及びそれらの誘導体、ビタミンA酸およびそれらの誘導体、コトリエノール、ユビキノン、アロエ、オウゴンなどの抗老化剤や各種ビタミン類やその誘導体、トコフェロール、酢酸トコフェロール、SOD、β−カロテン、カテキン、ポリフェノールなどの抗酸化剤、カフェイン、カカオ、セイヨウキズタ、ビスナジンなどのスリミング剤、カモミラ、シソ、カルニチン、リン脂質及びそれらの誘導体、機能性多糖などの抗炎症剤などが挙げられる。   Among the components that can be used in cosmetics and / or pharmaceuticals, bioactive ingredients include ascorbic acid, magnesium ascorbate phosphate, ascorbyl palmitate, ascorbyl stearate, ascorbyl tetraisopalmitate, ascorbyl glucoside, arbutin, tranexamic acid And derivatives thereof, whitening agents such as ellagic acid and lucinol, glycyrrhizic acid, glycyrrhetinic acid, amino acids, sugars, mucopolysaccharides, ceramides, sterols and derivatives thereof, phospholipids and derivatives thereof, retinol and derivatives thereof , Vitamin A acids and their derivatives, anti-aging agents such as cotrienol, ubiquinone, aloe, ougon and various vitamins and their derivatives, tocopherol, tocopherol acetate, SOD, β-carotate , Catechin, an anti-oxidant such as polyphenol, caffeine, cocoa, ivy, slimming agents such as visnadine, Kamomira, perilla, carnitine, phospholipids and their derivatives, and the like, such as anti-inflammatory agents such as functional polysaccharide.

また、生理活性成分などがより効率的に経皮吸収され、有効性及び/又は安全性がより発現される化粧品又は医薬品の剤型を検討するための方法としても利用できるため、化粧品又は医薬品の処方設計の検討に利用すると非常に効率的にそれらの開発を進めることができる。   In addition, since it can be used as a method for studying a dosage form of a cosmetic or pharmaceutical product in which a physiologically active ingredient is more efficiently transdermally absorbed and is more effective and / or safe, When used for studying prescription design, they can be developed very efficiently.

物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に測定するには、図1または図2の培地をサンプリングして測定すればよい。物質の皮膚透過量は例えば、高速液体クロマトグラフィーやガスクロマトグラフィーを用いて定量することができ、透過した物質の有効性及び/又は安全性の評価は、例えば評価対象細胞として線維芽細胞を用いてコラーゲン産生促進作用を評価する場合は、ELISA法により、また、コラーゲナーゼ活性作用を評価する場合は、擬似基質を用いた活性測定法により評価することができる。   In order to simultaneously measure the amount of substance permeated through the skin and the effectiveness and / or safety of the permeated substance, the medium in FIG. 1 or FIG. 2 may be sampled and measured. The amount of substance permeated through the skin can be quantified using, for example, high performance liquid chromatography or gas chromatography, and the evaluation of the effectiveness and / or safety of the permeated substance is performed using, for example, fibroblasts as cells to be evaluated. Thus, when evaluating the collagen production promoting action, it can be evaluated by ELISA, and when evaluating the collagenase activity action, it can be evaluated by an activity measuring method using a pseudo-substrate.

図1または図2は、表皮等価物と、評価対象細胞とを用いることを特徴とする、物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に測定できることを特徴とする経皮吸収評価装置である。   FIG. 1 or FIG. 2 is characterized in that the skin permeation amount of a substance and the evaluation of the effectiveness and / or safety of the permeated substance can be measured simultaneously, using an epidermis equivalent and a cell to be evaluated. This is a transdermal absorption evaluation device.

本経皮吸収評価装置は、皮膚等価物3を支持するバスケット2を収容するウェル1を含む。ウェル1が配置されるバスケット2は、ウェル1を着脱可能に固定できてもよい。バスケット2は皮膚等価物3を支持する底壁7を含む。底壁7は貫通穴8を有する。また、バスケット2に底膜7を固定するためのインサート9を有するものもある。バスケットという用語は制限的な意味で使用するものではなく、ウェル1内に配置された任意の支持体を含む。ウェル1は、複数(例えば12個)のウェルを有するプレートの一部を固定することができる。ウェル1には、溶液5(例えば、培地など)が充填されている。表皮等価物3は、例えば前述の培養皮膚などである。評価対象細胞4は、例えば前述の線維芽細胞、脂肪細胞、血管内皮細胞、ランゲルハンス細胞、色素細胞などである。評価対象となる物質6は、例えば化粧品及び/又は医薬品に利用できる成分、それを含む溶液、溶解又は分散物、乳化製剤、また、化粧品、トイレタリー製品、医薬品製剤などである。表皮等価物は、例えば、0.2〜5cmの範囲、特に0.3〜2cmの範囲の面積を有する。 The percutaneous absorption evaluation apparatus includes a well 1 that accommodates a basket 2 that supports a skin equivalent 3. The basket 2 in which the well 1 is disposed may be capable of detachably fixing the well 1. The basket 2 includes a bottom wall 7 that supports the skin equivalent 3. The bottom wall 7 has a through hole 8. Some have an insert 9 for fixing the bottom membrane 7 to the basket 2. The term basket is not used in a limiting sense and includes any support disposed within the well 1. The well 1 can fix a part of a plate having a plurality of (for example, 12) wells. The well 1 is filled with a solution 5 (for example, a medium). The epidermal equivalent 3 is, for example, the aforementioned cultured skin. The evaluation target cells 4 are, for example, the aforementioned fibroblasts, adipocytes, vascular endothelial cells, Langerhans cells, pigment cells, and the like. The substance 6 to be evaluated is, for example, a component that can be used in cosmetics and / or pharmaceuticals, a solution containing the same, a solution or dispersion, an emulsified preparation, and a cosmetic, toiletry product, pharmaceutical preparation, and the like. Epidermal equivalents have, for example, the range of 0.2~5Cm 2, in particular the area in the range of 0.3~2cm 2.

以下に実施例を挙げて本発明を具体的に説明するが、本発明の技術的範囲がこれらに限定されるものではない。   EXAMPLES The present invention will be specifically described below with reference to examples, but the technical scope of the present invention is not limited to these examples.

リン酸L−アスコルビルマグネシウム又はL−アスコルビン酸の水溶液又はそれを含有する乳化製剤の経皮吸収試験   Transdermal absorption test of an aqueous solution of L-ascorbyl magnesium phosphate or L-ascorbic acid or an emulsified preparation containing the same

1.試験の概要
皮膚の抗老化素材であるリン酸L−アスコルビルマグネシウム(以下、VCPMg)又はL−アスコルビン酸(以下、VC)の水溶液又はVCPMg又はVCを含有する乳化製剤適用後のVCPMgの累積透過量及び線維芽細胞のコラーゲン産生量をそれぞれ高速液体クロマトグラフィー(HPLC)測定法及びELISA法にて測定した。なお、コラーゲン産生量を測定する試験であるため、支持体の構成物の影響を考慮し、2種類の異なる表皮等価物を用いて評価した(EPISKIN;コラーゲン、RHE;ポリカーボネート)。
1. Summary of test Cumulative permeation amount of VCPMg after application of an aqueous solution of L-ascorbyl phosphate (hereinafter referred to as VCPMg) or L-ascorbic acid (hereinafter referred to as VC), which is an anti-aging material of skin, or an emulsified preparation containing VCPMg or VC And the collagen production amount of fibroblasts were measured by high performance liquid chromatography (HPLC) measurement method and ELISA method, respectively. Since this is a test for measuring the amount of collagen produced, it was evaluated using two different epidermal equivalents (EPISKIN; collagen, RHE; polycarbonate) in consideration of the influence of the composition of the support.

2.実験方法
経皮吸収試験の前日にヒト正常線維芽細胞を播種し、EPISKINまたはRHEをプレインキュベーションした。試験当日EPISKINまたはRHEとヒト正常線維芽細胞をKG2培地で共培養し、試料を適用した。図4および図5は、経皮吸収試験のセッティングである(表皮等価物3はEPISKINまたはRHE、評価対象細胞4は線維芽細胞、評価対象となる物質6はVCPMg水溶液又はVCPMgを含有する乳化製剤)。24時間後に試料を取り除き、48時間までインキュベーションを続けた。経時的に培養液を採取しVCPMg又はVCの累積透過量をHPLCにて測定した。また、48時間後に採取した培養液中コラーゲン産生量をELISA法にて測定した。コントロールとして、リン酸緩衝生理食塩水(PBS)を用いた。
2. Experimental Method Human normal fibroblasts were seeded the day before the percutaneous absorption test and preincubated with EPISKIN or RHE. On the day of the test, EPISKIN or RHE and human normal fibroblasts were co-cultured in KG2 medium, and the sample was applied. 4 and 5 show the settings of the transdermal absorption test (epidermal equivalent 3 is EPISKIN or RHE, evaluation target cell 4 is fibroblast, and evaluation target substance 6 is a VCPMg aqueous solution or an emulsified preparation containing VCPMg. ). Samples were removed after 24 hours and incubation continued for up to 48 hours. The culture solution was collected over time, and the cumulative amount of VCPMg or VC permeated was measured by HPLC. In addition, the amount of collagen produced in the culture solution collected 48 hours later was measured by ELISA. As a control, phosphate buffered saline (PBS) was used.

3.結果
EPISKIN を用いた場合のVCPMg又はVCの累積透過量を表1に、48時間後のコラーゲン産生量を表2に示した。またRHEを用いた場合のVCPMg又はVCの累積透量を表3に、48時間後のコラーゲン産生量を表4に示した。いずれの表皮等価物を用いても累積透過量は製剤中VCPMg又はVC濃度および時間依存的に増加した。48時間後のコラーゲン産生量は製剤中VCPMg又はVC濃度依存的に増加した。また、単純な水溶液よりも乳化製剤とした方がより、累積透過量及びコラーゲン産生量が高かった。
なお、VCPMgとVCを比較すると、VCはVCPMgよりも累積透過量及びコラーゲン産生量が低かった。これは、VCが再構成皮膚を通過するときに代謝、分解されやすいことから、VCとして線維芽細胞に到達しにくかったためと考えられる。
線維芽細胞にVCを直接暴露させてコラーゲン産生能を評価した場合、その効果が極めて高いことがよく知られているが、実際に皮膚に塗布した場合は、VCよりもVCPMgの方がはるかに有効であることが示唆された。
また、EPISKINと比較して、RHEではコラーゲン量の定量により適していることが示された。すなわち、本経皮吸収装置でコラーゲン量を評価する場合、支持体がコラーゲンで構成されているEPISKINよりも、支持体の構成物がポリカーボネートであるRHEが、表皮等価物として適していることが示唆された。
本結果より、本経皮吸収評価装置は、物質の経皮吸収量及び経皮吸収した物質が評価対象細胞である線維芽細胞に作用して発現する効果を同時にかつ簡便に評価できることが明らかとなった。

Figure 2011200224
Figure 2011200224
Figure 2011200224
Figure 2011200224
3. Results Table 1 shows the cumulative amount of VCPMg or VC permeated when EPISKIN is used, and Table 2 shows the amount of collagen produced after 48 hours. Table 3 shows the cumulative permeability of VCPMg or VC when RHE is used, and Table 4 shows the amount of collagen production after 48 hours. With any epidermal equivalent, the cumulative permeation amount increased in a formulation depending on the VCPMg or VC concentration and time. The amount of collagen production after 48 hours increased depending on the concentration of VCPMg or VC in the preparation. Further, the cumulative permeation amount and the collagen production amount were higher in the emulsion preparation than in the simple aqueous solution.
When VCPMg was compared with VC, VC had a lower cumulative permeation amount and collagen production amount than VCPMg. This is thought to be because it was difficult to reach fibroblasts as VC because VC is easily metabolized and decomposed when passing through reconstituted skin.
It is well known that collagen production ability is evaluated by directly exposing fibroblasts to VC, but VCPMg is much more effective than VC when applied to the skin. It was suggested to be effective.
Moreover, it was shown that RHE is more suitable for quantifying the amount of collagen than EPISKIN. That is, when evaluating the amount of collagen with this percutaneous absorption device, it is suggested that RHE, whose constituent of the support is polycarbonate, is more suitable as an epidermis equivalent than EPISKIN where the support is composed of collagen. It was done.
From this result, it is clear that the percutaneous absorption evaluation apparatus can simultaneously and easily evaluate the percutaneous absorption amount of the substance and the effect that the percutaneously absorbed substance acts on the fibroblast as the evaluation target cell. became.
Figure 2011200224
Figure 2011200224
Figure 2011200224
Figure 2011200224

N−アセチルグルコサミンの水溶液又はそれを含有する乳化製剤の経皮吸収試験 Transdermal absorption test of aqueous solution of N-acetylglucosamine or emulsified preparation containing the same

1.試験の概要
皮膚の抗老化素材であるN−アセチルグルコサミン(以下、NAG)水溶液又はNAGを含有する乳化製剤適用後のNAG累積透過量及び線維芽細胞のヒアルロン酸産生量をそれぞれ高速液体クロマトグラフィー(HPLC)測定法及びELISA法にて測定した。
1. Outline of the test High-performance liquid chromatography (NAG cumulative permeation amount and hyaluronic acid production amount of fibroblasts after application of an aqueous solution of N-acetylglucosamine (hereinafter referred to as NAG), which is an anti-aging material for skin, or an emulsion preparation containing NAG) HPLC) Measurement method and ELISA method.

2.実験方法
経皮吸収試験の前日にヒト正常線維芽細胞を播種し、EPISKINをプレインキュベーションした。試験当日EPISKINとヒト正常線維芽細胞をKG2培地で共培養し、試料を適用した。図4は、経皮吸収試験のセッティングである(表皮等価物3はEPISKIN、評価対象細胞4は線維芽細胞、評価対象となる物質6はNAG水溶液又はNAGを含有する乳化製剤)。24時間後に試料を取り除き、48時間までインキュベーションを続けた。経時的に培養液を採取しNAGの累積透過量をHPLCにて測定した。また、48時間後に採取した培養液中ヒアルロン酸産生量をELISA法にて測定した。コントロールとして、リン酸緩衝生理食塩水(PBS)を用いた。
2. Experimental Method One day before the percutaneous absorption test, normal human fibroblasts were seeded, and EPISKIN was preincubated. On the day of the test, EPISKIN and normal human fibroblasts were co-cultured in KG2 medium and the sample was applied. FIG. 4 shows the settings for the percutaneous absorption test (epidermal equivalent 3 is EPISKIN, evaluation target cells 4 are fibroblasts, and evaluation target substance 6 is an aqueous NAG solution or an emulsion containing NAG). Samples were removed after 24 hours and incubation continued for up to 48 hours. The culture solution was collected over time, and the cumulative amount of NAG permeation was measured by HPLC. Further, the amount of hyaluronic acid produced in the culture solution collected 48 hours later was measured by ELISA. As a control, phosphate buffered saline (PBS) was used.

3.結果
NAG累積透過量を表5に、48時間後のヒアルロン酸産生量を表6に示した。累積透過量は製剤中NAG濃度および時間依存的に増加した。48時間後のヒアルロン酸産生量は製剤中NAG濃度の依存的に増加した。そして、単純な水溶液よりも乳化製剤とした方がより、累積透過量及びヒアルロン酸産生量が高かった。
本結果より、本経皮吸収評価装置は、物質の経皮吸収量及び経皮吸収した物質が評価対象細胞である線維芽細胞に作用して発現する効果を同時にかつ簡便に評価できることが明らかとなった。

Figure 2011200224
Figure 2011200224
3. Results The NAG cumulative permeation amount is shown in Table 5, and the hyaluronic acid production amount after 48 hours is shown in Table 6. Cumulative permeation increased in a formulation dependent on NAG concentration and time. The amount of hyaluronic acid produced after 48 hours increased depending on the NAG concentration in the preparation. The cumulative permeation amount and hyaluronic acid production amount were higher in the emulsified preparation than in the simple aqueous solution.
From this result, it is clear that the percutaneous absorption evaluation apparatus can simultaneously and easily evaluate the percutaneous absorption amount of the substance and the effect that the percutaneously absorbed substance acts on the fibroblast as the evaluation target cell. became.
Figure 2011200224
Figure 2011200224

Epigallocatechin-3-gallateの水溶液又はそれを含有する乳化製剤の経皮吸収試験 Transdermal absorption test of aqueous solution of Epigallocatechin-3-gallate or emulsified preparation containing it

1.試験の概要
皮膚の抗酸化及び抗老化素材であるEpigallocatechin-3-gallate(以下、EGCG)水溶液又はEGCGを含有する乳化製剤適用後のEGCG累積透過量及び線維芽細胞のコラーゲナーゼ活性をそれぞれ高速液体クロマトグラフィー(HPLC)測定法及び擬似基質にて測定した。
1. Outline of the test High-speed liquids for cumulative permeation of EGCG and collagenase activity of fibroblasts after application of an aqueous solution of epigallocatechin-3-gallate (EGCG), which is an antioxidant and anti-aging material, or an emulsion containing EGCG It measured by the chromatography (HPLC) measuring method and the pseudo substrate.

2.実験方法
経皮吸収試験の前日にヒト正常線維芽細胞を播種し、EPISKINをプレインキュベーションした。試験当日EPISKINとヒト正常線維芽細胞をKG2培地で共培養し、試料を適用した。図4は、経皮吸収試験のセッティングである(表皮等価物3はEPISKIN、評価対象細胞4は線維芽細胞、評価対象となる物質6はEGCG水溶液又はEGCGを含有する乳化製剤)。24時間後に試料を取り除き、48時間までインキュベーションを続けた。経時的に培養液を採取しEGCG累積透過量をHPLCにて測定した。また、48時間後に採取した培養液中のコラーゲナーゼ活性を擬似基質にて測定した。コントロールとして、リン酸緩衝生理食塩水(PBS)を用いた。
2. Experimental Method One day before the percutaneous absorption test, normal human fibroblasts were seeded, and EPISKIN was preincubated. On the day of the test, EPISKIN and normal human fibroblasts were co-cultured in KG2 medium and the sample was applied. FIG. 4 shows the settings for the percutaneous absorption test (epidermal equivalent 3 is EPISKIN, evaluation target cells 4 are fibroblasts, and evaluation target substance 6 is an EGCG aqueous solution or an emulsified preparation containing EGCG). Samples were removed after 24 hours and incubation continued for up to 48 hours. The culture solution was collected over time, and the EGCG cumulative permeation amount was measured by HPLC. Moreover, the collagenase activity in the culture solution collected 48 hours later was measured with a pseudo substrate. As a control, phosphate buffered saline (PBS) was used.

3.結果
EGCGの累積透過量を表7に、48時間後のコラーゲナーゼ活性を表8に示した。累積透過量は製剤中EGCG濃度および時間依存的に増加した。48時間後のコラーゲナーゼ活性は製剤中EGCG濃度の依存的に増加した。そして、単純な水溶液よりも乳化製剤とした方がより、累積透過量は高く、コラーゲナーゼ活性は低くなった。
本結果より、本経皮吸収評価装置は、物質の経皮吸収量及び経皮吸収した物質が評価対象細胞である線維芽細胞に作用して発現する効果を同時にかつ簡便に評価できることが明らかとなった。

Figure 2011200224
Figure 2011200224
3. Results The cumulative amount of EGCG permeation is shown in Table 7, and the collagenase activity after 48 hours is shown in Table 8. Cumulative permeation increased in a formulation dependent on EGCG concentration and time. Collagenase activity after 48 hours increased depending on the EGCG concentration in the formulation. And the cumulative permeation amount was higher and the collagenase activity was lower in the emulsion preparation than in the simple aqueous solution.
From this result, it is clear that the percutaneous absorption evaluation apparatus can simultaneously and easily evaluate the percutaneous absorption amount of the substance and the effect that the percutaneously absorbed substance acts on the fibroblast as the evaluation target cell. became.
Figure 2011200224
Figure 2011200224

L−カルニチンの水溶液又はそれを含有する乳化製剤の経皮吸収試験 Transdermal absorption test of aqueous solution of L-carnitine or emulsified preparation containing the same

1.試験の概要
皮膚のスリミング素材であるL−カルニチン水溶液又はL−カルニチンを含有する乳化製剤適用後のL−カルニチン累積透過量及び脂肪細胞の脂肪分解作用をそれぞれ高速液体クロマトグラフィー(HPLC)測定法及び遊離グリセロール定量にて測定した。
1. Summary of Test High-performance liquid chromatography (HPLC) measurement method for L-carnitine cumulative permeation amount and adipocyte lipolytic action after application of emulsion preparation containing L-carnitine aqueous solution or L-carnitine, which is a skin slimming material, and Measured by free glycerol quantification.

2.実験方法
経皮吸収試験の前日に脂肪細胞を播種し、EPISKINをプレインキュベーションした。試験当日EPISKINと脂肪細胞をKG2培地で共培養(KG2)し、試料を適用した。図4は、経皮吸収試験のセッティングである(表皮等価物3はEPISKIN、評価対象細胞4は脂肪細胞、評価対象となる物質6はL−カルニチン水溶液又はL−カルニチンを含有する乳化製剤。24時間後に試料を取り除き、48時間までインキュベーションを続けた。経時的に培養液を採取しL−カルニチン累積透過量をHPLCにて測定した。また、48時間後に採取した培養液中の遊離グリセロール量を測定した。コントロールとして、リン酸緩衝生理食塩水(PBS)を用いた。
2. Experimental Method Adipocytes were seeded on the day before the percutaneous absorption test and preincubated with EPISKIN. On the day of the test, EPISKIN and adipocytes were co-cultured in KG2 medium (KG2), and the sample was applied. FIG. 4 shows the settings for the percutaneous absorption test (epidermal equivalent 3 is EPISKIN, evaluation target cell 4 is adipocyte, and evaluation target substance 6 is an L-carnitine aqueous solution or an emulsified preparation containing L-carnitine. 24 The sample was removed after a period of time and the incubation was continued until 48 hours, the culture medium was collected over time, the L-carnitine cumulative permeation amount was measured by HPLC, and the amount of free glycerol in the culture medium collected after 48 hours was measured. As a control, phosphate buffered saline (PBS) was used.

3.結果
L−カルニチン累積透過量を表9に、48時間後の脂肪分解作用を表10に示した。累積透過量は製剤中L−カルニチン濃度および時間依存的に増加した。48時間後の脂肪分解作用は製剤中L−カルニチン濃度の依存的に増加した。そして、単純な水溶液よりも乳化製剤とした方がより、累積透過量及び遊離グリセロールが高かった。
本結果より、本経皮吸収評価装置は、物質の経皮吸収量及び経皮吸収した物質が評価対象細胞である脂肪細胞に作用して発現する効果を同時にかつ簡便に評価できることが明らかとなった。

Figure 2011200224
Figure 2011200224
3. Results The cumulative amount of L-carnitine permeation is shown in Table 9, and the lipolytic action after 48 hours is shown in Table 10. Cumulative permeation increased in a formulation dependent on L-carnitine concentration and time. After 48 hours, the lipolytic action increased depending on the L-carnitine concentration in the preparation. The cumulative permeation amount and free glycerol were higher in the emulsion preparation than in the simple aqueous solution.
From this result, it becomes clear that the percutaneous absorption evaluation apparatus can simultaneously and easily evaluate the amount of the substance absorbed percutaneously and the effect that the substance absorbed percutaneously acts on the adipocytes as the evaluation target cells. It was.
Figure 2011200224
Figure 2011200224

リゾフォスファチジン酸の水溶液又はそれを含有する乳化製剤の経皮吸収試験 Transdermal absorption test of aqueous solution of lysophosphatidic acid or emulsified preparation containing the same

1.試験の概要
リゾフォスファチジン酸(以下、LPA)水溶液又はLPAを含有する乳化製剤適用後のLPA累積透過量及び血管内皮細胞の一酸化窒素産生促進作用をそれぞれ高速液体クロマトグラフィー(HPLC)測定法及びGriess法にて測定した。
1. Outline of the test High-performance liquid chromatography (HPLC) measurement method for lysophosphatidic acid (hereinafter, LPA) aqueous solution or LPA cumulative permeation amount after application of LPA-containing emulsion formulation and vascular endothelial cell nitric oxide production promoting action And the Griess method.

2.実験方法
経皮吸収試験の前日に血管内皮細胞を播種し、EPISKINをプレインキュベーションした。試験当日EPISKINと血管内皮細胞をKG2培地で共培養し、試料を適用した。図4は、経皮吸収試験のセッティングである(表皮等価物3はEPISKIN、評価対象細胞4は血管内皮細胞、評価対象となる物質6はLPA水溶液又はLPAを含有する乳化製剤。24時間後に試料を取り除き、48時間までインキュベーションを続けた。経時的に培養液を採取しLPA累積透過量をHPLCにて測定した。また、48時間後に採取した培養液中の一酸化窒素量をGriess法にて測定した。
2. Experimental Method On the day before the percutaneous absorption test, vascular endothelial cells were seeded and preincubated with EPISKIN. On the day of the test, EPISKIN and vascular endothelial cells were co-cultured in KG2 medium and the sample was applied. FIG. 4 shows the settings for the percutaneous absorption test (epidermal equivalent 3 is EPISKIN, evaluation target cells 4 are vascular endothelial cells, evaluation target substance 6 is an LPA aqueous solution or an emulsion containing LPA. Sample 24 hours later. Incubation was continued for 48 hours, and the culture solution was collected over time, and the LPA cumulative permeation amount was measured by HPLC, and the nitric oxide amount in the culture solution collected 48 hours later was measured by the Griess method. It was measured.

3.結果
LPA累積透過量を表11に、48時間後の一酸化窒素産生促進作用を表12に示した。累積透過量は製剤中LPA濃度および時間依存的に増加した。48時間後の一酸化窒素産生促進作用は製剤中LPA濃度の依存的に増加した。そして、単純な水溶液よりも乳化製剤とした方がより、累積透過量及び一酸化窒素量が高かった。
本結果より、本経皮吸収評価装置は、物質の経皮吸収量及び経皮吸収した物質が評価対象細胞である血管内皮細胞に作用して発現する効果を同時にかつ簡便に評価できることが明らかとなった。

Figure 2011200224
Figure 2011200224
3. Results The LPA cumulative permeation amount is shown in Table 11, and the nitric oxide production promoting action after 48 hours is shown in Table 12. Cumulative permeation increased with LPA concentration in the formulation and time dependent. The effect of promoting nitric oxide production after 48 hours increased depending on the LPA concentration in the preparation. And the cumulative permeation amount and the amount of nitric oxide were higher in the emulsion preparation than in the simple aqueous solution.
From this result, it is clear that the percutaneous absorption evaluation apparatus can simultaneously and easily evaluate the transdermal absorption amount of the substance and the effect that the percutaneously absorbed substance acts on the vascular endothelial cells as the evaluation target cells. became.
Figure 2011200224
Figure 2011200224

コウジ酸又はコウジ酸ジイソパルミチル(以下、KIP)の水溶液又はそれを含有する乳化製剤の経皮吸収試験 Transdermal absorption test of aqueous solution of kojic acid or diisopalmityl kojate (hereinafter referred to as KIP) or an emulsified preparation containing the same

1.試験の概要
皮膚の美白素材であるコウジ酸又はKIPの水溶液又はコウジ酸又はKIPを含有する乳化製剤適用後のコウジ酸累積透過量、チロシナーゼ活性阻害作用及び色素細胞のメラニン産生抑制作用をそれぞれ高速液体クロマトグラフィー(HPLC)測定法、ドーパオキシダーゼ活性測定法及びアルカリ可溶化法にて測定した。
1. Outline of the test Kojic acid or KIP aqueous solution that is a skin whitening material, or Kojic acid cumulative permeation amount, tyrosinase activity inhibitory action, and pigment cell melanin production inhibitory action after application of an emulsion preparation containing kojic acid or KIP It measured by the chromatography (HPLC) measuring method, the dopa oxidase activity measuring method, and the alkali solubilization method.

2.実験方法
経皮吸収試験の前日に色素細胞を播種し、EPISKINをプレインキュベーションした。試験当日EPISKINと色素細胞をKG2培地で共培養し、試料を適用した。図4は、経皮吸収試験のセッティングである(表皮等価物3はEPISKIN、評価対象細胞4は色素細胞、評価対象となる物質6はコウジ酸水溶液又はコウジ酸を含有する乳化製剤。24時間後に試料を取り除き、一週間までインキュベーションを続けた。経時的に培養液を採取しコウジ酸又はKIPの累積透過量をHPLCにて測定した。また、チロシナーゼ活性阻害作用はドーパオキシダーゼ活性測定法にて測定し、一週間後に採取した色素細胞中のメラニン量をアルカリ可溶化法にて測定した。コントロールとして、リン酸緩衝生理食塩水(PBS)を用いた。
2. Experimental Method Pigment cells were seeded on the day before the transdermal absorption test, and EPISKIN was preincubated. On the day of the test, EPISKIN and pigment cells were co-cultured in KG2 medium and the sample was applied. FIG. 4 shows the settings for the percutaneous absorption test (epidermal equivalent 3 is EPISKIN, evaluation target cell 4 is pigment cell, and evaluation target substance 6 is an aqueous solution of kojic acid or an emulsion containing kojic acid. 24 hours later. The sample was removed, and the incubation was continued for one week.The culture solution was collected over time and the cumulative permeation amount of kojic acid or KIP was measured by HPLC, and the tyrosinase activity inhibitory activity was measured by the dopa oxidase activity measurement method. The amount of melanin in the pigment cells collected one week later was measured by an alkali solubilization method, and phosphate buffered saline (PBS) was used as a control.

3.結果
コウジ酸又はKIPの累積透過量を表13に、チロシナーゼ活性阻害作用及び一週間後のメラニン産生抑制作用を表14に示した。累積透過量は製剤中コウジ酸又はKIPの濃度および時間依存的に増加した。チロシナーゼ活性阻害作用及びメラニン産生抑制作用は製剤中コウジ酸又はKIPの濃度依存的に増加した。また、コウジ酸については、単純な水溶液よりも乳化製剤とした方が、より累積透過量が高かった。
なお、コウジ酸とKIPの乳化製剤での結果を比較すると、コウジ酸はKIPよりも累積透過量、チロシナーゼ活性阻害作用及びメラニン産生抑制作用が低かった。これは、コウジ酸が皮膚のとの親和性が低いため経皮吸収しにくいことから、コウジ酸として色素細胞に到達しにくかったためと考えられる。
色素細胞にコウジ酸を直接暴露させてチロシナーゼ活性阻害作用又はメラニン産生抑制作用を評価した場合、その効果が極めて高いことがよく知られているが、実際に皮膚に塗布した場合は、コウジ酸よりもKIPの方がはるかに有効であることが示唆された。
本結果より、本経皮吸収評価装置は、物質の経皮吸収量及び経皮吸収した物質が評価対象細胞である色素細胞に作用して発現する効果を同時にかつ簡便に評価できることが明らかとなった。

Figure 2011200224
Figure 2011200224
3. Results Table 13 shows the cumulative permeation amount of kojic acid or KIP, and Table 14 shows the tyrosinase activity inhibitory effect and the melanin production inhibitory effect after one week. Cumulative permeation increased in a formulation depending on the concentration of kojic acid or KIP and time. The tyrosinase activity inhibitory action and melanin production inhibitory action increased depending on the concentration of kojic acid or KIP in the preparation. For kojic acid, the cumulative permeation amount was higher in the emulsified preparation than in the simple aqueous solution.
In addition, when the results of the emulsion preparations of kojic acid and KIP were compared, kojic acid had lower cumulative permeation amount, tyrosinase activity inhibiting action and melanin production inhibiting action than KIP. This is probably because kojic acid has a low affinity with the skin and is difficult to absorb transdermally, so it was difficult to reach the pigment cells as kojic acid.
It is well known that when kojic acid is directly exposed to pigment cells and the tyrosinase activity inhibitory action or melanin production inhibitory action is evaluated, the effect is extremely high, but when actually applied to the skin, It was suggested that KIP is much more effective.
From this result, it becomes clear that the percutaneous absorption evaluation apparatus can simultaneously and easily evaluate the transdermal absorption amount of the substance and the effect that the substance absorbed percutaneously acts on the pigment cell as the evaluation target cell. It was.
Figure 2011200224
Figure 2011200224

1 ウェル
2 バスケット
3 表皮等価物
4 評価対象細胞
5 溶液
6 物質
7 底壁
8 貫通穴
9 インサート
1 well 2 basket 3 epidermis equivalent 4 cell to be evaluated 5 solution 6 substance 7 bottom wall 8 through hole 9 insert

Claims (7)

表皮等価物と、評価対象細胞とを用いることを特徴とする、物質の皮膚透過量と透過した物質の有効性及び/又は安全性の評価を同時に測定できることを特徴とする経皮吸収評価装置。 An apparatus for evaluating percutaneous absorption, characterized in that the skin permeation amount of a substance and the evaluation of the effectiveness and / or safety of the permeated substance can be measured simultaneously, using an epidermis equivalent and cells to be evaluated. 前記表皮等価物が、培養皮膚であることを特徴とする請求項1に記載の経皮吸収評価装置。 The percutaneous absorption evaluation apparatus according to claim 1, wherein the epidermis equivalent is cultured skin. 前記表皮等価物が、再構成皮膚であることを特徴とする請求項1又は2に記載の経皮吸収評価装置。 The percutaneous absorption evaluation apparatus according to claim 1 or 2, wherein the epidermis equivalent is reconstructed skin. 前記評価対象細胞が、線維芽細胞、脂肪細胞、血管内皮細胞、ランゲルハンス細胞、色素細胞、単球細胞からなる群から選択される1種又は2種以上であることを特徴とする請求項1〜3のいずれか1項に記載の経皮吸収評価装置。 The said evaluation object cell is 1 type, or 2 or more types selected from the group which consists of a fibroblast, an adipocyte, a vascular endothelial cell, a Langerhans cell, a pigment cell, and a monocyte cell, It is characterized by the above-mentioned. 4. The percutaneous absorption evaluation apparatus according to any one of 3 above. 請求項1〜4のいずれか1項に記載の経皮吸収評価装置を使用して、表皮等価物の経皮吸収測定と、前記評価対象細胞のコラーゲン産生作用、ヒアルロン酸産生作用、エラスチン産生促進又は抑制作用、フィブリリン産生促進作用、プロテアーゼ活性抑制作用、脂肪分解作用、細胞増殖促進又は抑制作用、一酸化窒素産生促進又は抑制作用、メラニン産生促進又は抑制作用、チロシナーゼ活性促進又は抑制作用、チロシナーゼ産生促進又は抑制作用、サイトカイン産生促進又は抑制作用からなる群から選択される1種又は2種以上の測定とを同時におこなうことを特徴とする評価方法。 Using the percutaneous absorption evaluation apparatus according to any one of claims 1 to 4, the percutaneous absorption measurement of the epidermis equivalent, collagen production action, hyaluronic acid production action, elastin production promotion of the evaluation target cells Or inhibitory action, fibrillin production promoting action, protease activity inhibiting action, lipolytic action, cell growth promoting or inhibiting action, nitric oxide production promoting or inhibiting action, melanin production promoting or inhibiting action, tyrosinase activity promoting or inhibiting action, tyrosinase production The evaluation method characterized by performing simultaneously the measurement of 1 type, or 2 or more types selected from the group which consists of a promotion or suppression effect and cytokine production promotion or suppression effect. 請求項5に記載の経皮吸収評価装置が、培養された再構成皮膚とそれを支持するコラーゲン膜の底膜からなる表皮等価物であることを特徴とする評価方法。 6. The evaluation method according to claim 5, wherein the apparatus for evaluating percutaneous absorption is an epidermis equivalent comprising cultured reconstructed skin and a bottom membrane of a collagen membrane supporting the skin. 請求項5に記載の評価方法において、評価対象細胞のコラーゲン産生作用の測定をおこなう場合に使用する経皮吸収評価装置が、培養された再構成皮膚とそれを支持するポリカーボネートの底膜からなる表皮等価物であることを特徴とする評価方法。 6. The evaluation method according to claim 5, wherein the percutaneous absorption evaluation apparatus used when measuring the collagen producing action of the cell to be evaluated is an epidermis comprising cultured reconstructed skin and a polycarbonate bottom membrane supporting the skin. An evaluation method characterized by being an equivalent.
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