JP5847090B2 - 皮膚のバリア機能を改善するためのcertの発現を刺激する活性薬剤をスクリーニングするための方法 - Google Patents
皮膚のバリア機能を改善するためのcertの発現を刺激する活性薬剤をスクリーニングするための方法 Download PDFInfo
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- G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
- G01N33/5044—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics involving specific cell types
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- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
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Description
a)ヒトドナー由来の培養されたケラチノサイトの試料を、植物抽出物などの活性薬剤で処置するステップと、
b)処置された試料中でのCERTの発現を、処置されていない同じ細胞試料と比較して定量化するステップと、
c)処置されていない試料と比較して、CERTの発現の増加をもたらす活性薬剤を選択するステップと
を含む方法である。
− 特に、ポリジメチルシロキサン(ジメチコン)、ポリアルキルシクロシロキサン(polyalkylcyclosiloxane)(シクロメチコン(cyclomethicone))およびポリアルキルフェニルシロキサン(フェニルジメチコン)などの直鎖状または環状、揮発性または非揮発性シリコーン油;フッ化油、アルキル安息香酸およびポリイソブチレンなどの分岐炭化水素などの合成油;植物油、特にダイズ油またはホホバ油;ならびに液体ワセリンなどの鉱物油;から選択することができる油;
− オゾケライト、ポリエチレンワックス、蜜蝋またはカルナウバ蝋などのワックス;
− 特に、触媒の存在下で、末端および/または側部において、少なくとも1つの反応基(特に水素またはビニル)を含有し、少なくとも1つのアルキル基(特にメチル)またはフェニルを有するポリシロキサンの、オルガノハイドロジェン−ポリシロキサンなどのオルガノシリコーンとの反応によって得られるシリコーンエラストマー;
− 界面活性剤、好ましくは、非イオン性、陰イオン性、陽イオン性であろうと両性であろうとも、乳化界面活性剤、特に、グリセロールの脂肪酸エステル、ソルビタンの脂肪酸エステル、ポリエチレングリコールの脂肪酸エステルおよびスクロースの脂肪酸エステルなどのポリオールの脂肪酸エステル;ポリエチレングリコールの脂肪アルキルエーテル;アルキルポリグリコシド;ポリシロキサン変性ポリエーテル;ベタインおよびその誘導体;ポリクオタニウム;エトキシ化脂肪アルキル硫酸塩;スルホサクシネート(sulfosuccinate);サルコシネート(sarcosinate);リン酸アルキルおよびジアルキル、およびその塩;ならびに脂肪酸セッケン;
− 直鎖状の脂肪アルコール、特に、セチルアルコールおよびステアリルアルコールなどのコサーファクタント;
− アクリロイルメチルプロパンスルホン酸(AMPS)および/またはアクリルアミドおよび/またはアクリル酸および/またはアクリル酸塩またはエステルの増粘剤および/またはゲル化剤、特に、架橋したまたは架橋していない、親水性または両親媒性のホモポリマーおよびコポリマー;キサンタンガムまたはグアーゴム;セルロース誘導体;ならびにシリコーンゴム(ジメチコノール);
− ジベンゾイルメタン誘導体(ブチルメトキシジベンゾイル−メタンが含まれる)、桂皮酸誘導体(メトキシケイ皮酸エチルヘキシルが含まれる)、サリチレート、パラアミノ安息香酸、アクリル酸β,β’−ジフェニル、ベンゾフェノン、ベンジリデンカンファー誘導体、フェニルベンゾイミダゾール、トリアジン、フェニル−ベンゾトリアゾールおよびアントラニル誘導体などの有機スクリーニング剤;
− コーティングされたまたはコーティングされていない顔料またはナノ顔料の形での鉱物酸化物に基づく、特に、二酸化チタンまたは酸化亜鉛に基づく無機スクリーニング剤;
− 染料;
− 保存剤;
− 賦形剤、特に、ポリアミド、シリカ、タルク、雲母および繊維(特にポリアミド繊維またはセルロース繊維)から特に選択することができる、ソフトフォーカス効果を有する粉末;
− EDTA塩などの金属イオン封鎖剤;
− 香料;
− ならびにそれらの混合物
から選択される少なくとも1つの化合物などの様々な補助剤を含有することができるが、このリストに限定されない。
ウエスタンブロット法によって活性薬剤をスクリーニングするための試験
プロトコール:
ヴァニラ・プラニフォリア(Vanilla planifolia)抽出物を、WO2007/034042の実施例1に記述されているように調製した。
結果を、下記の表1に示す。
(実施例2)
プロトコール:
2つの活性薬剤がCERTのmRNAの発現に及ぼす効果を、ケラチノサイトにおいて評価した。
結果を、下記の表2に示す。
(実施例3)
プロトコール:
CERTタンパク質の発現の変動を、様々な年齢群のドナー由来のパラフィン埋包した皮膚試料(Cybrdi,MD,USAおよびTissue Array Networks,MD,USA)において免疫組織化学的検査(IHC)によって評価した。4つの年齢群(生後20〜30週、28〜35歳、39〜49、および50〜69歳)におけるドナー由来の6μmの切片において、抗CERT抗体(Bethyl Laboratories,TX,USA)および二次抗体(Lab Vision,CA,USA)で、染色を行った。染色を、AEC system(Lab Vision)を使用して可視化した。染色を、1〜5(1=最少の強さ、5=最大の強さ)のスケールを使用した染色の強さおよび範囲の盲目視覚評価(blind visual assessment)を行うことによって、各年齢群における3〜6人のドナー由来のそれぞれ2〜6つの画像において評価した。評点の平均値を、有意性について独立t検定を使用して比較した。
若年成人の皮膚(28〜35歳)におけるCERT染色の評価は、4.63(±0.5)の評点を意味する、表皮において強い細胞質の染色を示した(図1、ダークグレーの棒)。次いで、染色の強さは、年長のドナーの皮膚(39〜49)の切片において目に見えて減少し、特に年齢が50〜69歳で、染色の強さは3.06(±0.66)の評点が付けられた。これは、CERTタンパク質の発現が加齢と共に有意に減退する(P<0.0001)ことを実証している。
(実施例4)
以下の組成物は、当業者にとって通常の方法で調製することができる。以下に示す量は、重量百分率として表す。大文字の成分は、INCI名に従って特定される。
EDTA四ナトリウム 0.05%
メタクリル酸ポリグリセリルおよび
プロピレングリコール(1) 5.00%
グリセロール 6.00%
水相ゲル化剤 5.50%
非イオン性乳化剤 4.00%
セテアリルアルコール 2.00%
軟化剤 17.00%
酢酸トコフェロール 0.50%
保存剤 2.20%
植物抽出物(2) 0.05%
ヒアルロン酸ナトリウム 5.00%
香料 十分量
染料 十分量
水 100.00%まで十分量
(1)Guardian LaboratoriesからのLUBRAJEL MS(登録商標)
(2)実施例1または2で開示した試験において様々な植物抽出物をスクリーニングすることによって得られた
Claims (10)
- バリア機能の非病的な障害に起因する皮膚の兆候を予防または抑制することができる活性薬剤をスクリーニングするための方法であって、
a)ヒトドナー由来の培養されたケラチノサイトの試料を、活性薬剤で処置するステップと、
b)前記処置された試料中でのCERTの発現を、処置されていない同じ細胞試料と比較して定量化するステップと、
c)処置されていない試料と比較して、CERTの発現の増加をもたらす活性薬剤を選択するステップと
を含む方法。 - CERTの発現の定量化が、RT−PCR法によって行われることを特徴とする、請求項1に記載の方法。
- ステップc)が、処置されていない試料における発現を1とした場合と比べて、少なくとも1.7倍のCERTの遺伝子発現レベルの増加をもたらす活性薬剤を選択することを含むことを特徴とする、請求項2に記載の方法。
- CERTの発現の定量化が、ウエスタンブロット法によって行われることを特徴とする、請求項1に記載の方法。
- ステップc)が、処置されていない試料によって発現されるCERTタンパク質レベルの少なくとも120%である、CERTタンパク質レベルをもたらす活性薬剤を選択することを含むことを特徴とする、請求項4に記載の方法。
- 活性薬剤が植物抽出物である、請求項1から5のいずれか一項に記載の方法。
- ヒトの皮膚に局所的に適用した場合、バリア機能の非病的な障害に起因する皮膚の兆候を予防または抑制することができる活性薬剤を選択するための、請求項1から6のいずれか一項に記載の方法の使用。
- ヒトの皮膚に局所的に適用した場合、乾燥の兆候から皮膚を保護すること、外的環境から皮膚を保護すること、ならびに皮膚におけるオキシダント負荷を低減することができる活性薬剤を選択するための、請求項1から6のいずれか一項に記載の方法の使用。
- 前記兆候が、肌荒れ、肌の輝きの喪失および/または皮膚の柔軟性の喪失から選択されることを特徴とする、請求項8に記載の使用。
- ヒトの皮膚に局所的に適用した場合、皮膚の光老化を妨げることができる活性薬剤を選択するための、請求項1から6のいずれか一項に記載の方法の使用。
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PCT/EP2010/068849 WO2011069913A1 (en) | 2009-12-07 | 2010-12-03 | Method for screening active agents that stimulate the expression of cert to improve the skin's barrier function |
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FR2777183B1 (fr) * | 1998-04-10 | 2001-03-02 | Oreal | Utilisation d'au moins un hydroxystilbene dans une composition destinee a favoriser la desquamation de la peau et composition le comprenant |
FR2811556B1 (fr) | 2000-07-11 | 2002-09-06 | Oreal | Composition comprenant un precurseur de ceramides, utilisation pour ameliorer l'epiderme naturel ou reconstruit , equivalent de peau obtenu |
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US20090035236A1 (en) * | 2007-07-31 | 2009-02-05 | Maes Daniel H | Emulsion Cosmetic Compositions Containing Resveratrol Derivatives And An Oil Phase Structuring Agent |
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