JP4981381B2 - 美白用皮膚外用剤 - Google Patents
美白用皮膚外用剤 Download PDFInfo
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- JP4981381B2 JP4981381B2 JP2006213527A JP2006213527A JP4981381B2 JP 4981381 B2 JP4981381 B2 JP 4981381B2 JP 2006213527 A JP2006213527 A JP 2006213527A JP 2006213527 A JP2006213527 A JP 2006213527A JP 4981381 B2 JP4981381 B2 JP 4981381B2
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- skin
- base sequence
- tyrosinase
- seq
- sirna
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- GZIFEOYASATJEH-VHFRWLAGSA-N δ-tocopherol Chemical compound OC1=CC(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1 GZIFEOYASATJEH-VHFRWLAGSA-N 0.000 description 1
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
5’-CUGAGAAAUAACUACCUUAAA-3’
3’-GAGACUCUUUAUUGAUGGAAU-5’
センス鎖 Mw:6672 アンチセンス鎖 Mw:6699 2重鎖 Mw:13371
〔配列番号2〕
5’-CAAGGUCAAAUCAUCAUUATT-3’
3’-TTGUUCCAGUUUAGUAGUAAU-5’
センス鎖 Mw:6622 アンチセンス鎖 Mw:6632 2重鎖 Mw:13254
〔配列番号3〕
5’-CAAUAUGAAUCUGGUUCCATT-3’
3’-TTGUUAUACUUAGACCAAGGU-5’
センス鎖 Mw:6615 アンチセンス鎖 Mw:6655 2重鎖 Mw:13270
また、本発明では前記したようなリン脂質のうちの一種又は二種以上を組み合わせて使用することができる。リン脂質を含有することで、本発明に係るオリゴヌクレオチドの皮膚浸透性を高めることができる。
メラノーマ細胞(HM3KO)のトリプシン処理を行ない、5%牛胎児血清を含有するOpti-MEM(Invitrogen社)培地で細胞を分散させ、12well
plateに5×104/wellを播種し、1日間、37℃で培養を行なう。培地量は各wellあたり1mlになるように添加し培養する。
配列番号1から3のsiRNA溶液(10nmol(20pmol/μl)タカラバイオ株式会社にて作成)と、カチオン性脂質としてLipofectamine
Reagent (Invitrogen社)、Plus Reagent (Invitrogen社)、およびOpti-MEM (Invitrogen社)培地をそれぞれ表-1の量添加し、調製する。
細胞内に産生されたメラニン量の測定は培養後、細胞を2N-NaOHに溶解し405nmの吸光度を測定した。また、細胞増殖度は2N-NaOHに溶解した細胞溶解液の一部を
BCA法によるタンパク測定法により540nmの吸光度で測定し、タンパク量に換算した。メラニン産生度は、単位タンパク量あたりのメラニン量の割合で計算した。また、美白効果の陽性対照物質としてβ-アルブチンを用いた。
〔計算式:メラニン産生度(%)=(試料添加区の405nmの吸光度値/試料添加区の540nmの吸光度値)/(無添加区の405nmの吸光度値/無添加区の540nmの吸光度値)×100〕
(塗布によるヒトでの効果確認試験 1)
被験者として、20〜60歳の女性10名に1日2回(朝、夜)連続2ヵ月間、試験品と比較品1,2のそれぞれを使用させ、塗布部位の状態を試験前後で比較し、改善効果を調べた。本試験には、試験品として段落0033で示した皮膚組成物を用い、比較品1には段落0033に示した皮膚組成物からホスファチジルセリンを除いた皮膚組成物を、比較品2には段落0033に示した皮膚組成物から配列番号3のsiRNAを除いた皮膚組成物を作成し、その使用による効果について調べた。本発明の有効成分を配合した皮膚組成物を毎日使用しながら肌の美白効果を塗布開始前及び1ヶ月塗布後におけるアンケートで集計し、効果の確認を行った。結果は表3に示す。表中の数字は、人数を示している。表3からも明らかなように、カチオン性リン脂質としてホスファチジルセリン、およびチロシナーゼをコードするmRNAを特異的に切断するRNA干渉物質として配列番号3のsiRNAとを配合した試験品では評価点数が80点であった。一方、カチオン性リン脂質としてホスファチジルセリンのみからなる比較品2では評価点数が36点であり、またチロシナーゼをコードするmRNAを特異的に切断するRNA干渉物質として配列番号3のsiRNAのみからなる比較品1では評価点数が50点であった。この結果から明らかなように、チロシナーゼをコードするmRNAを特異的に切断するRNA干渉物質とカチオン性リン脂質を併用することによって高い美白効果が得られることが認められた。
(クリーム軟膏1)
(重量%)
a)ミツロウ
2.0
b)大豆リン脂質
0.01
c)ステアリン酸 8.0
d)スクワラン
10.0
e)自己乳化型グリセリルモノステアレート
3.0
f)ポリオキシエチレンセチルエーテル(20E.O.) 1.0
g)水酸化カリウム
0.3
h)防腐剤・酸化防止剤
適量
i)精製水
残部
j)配列番号1のsiRNA 1.0
製法:a)〜f)までを加熱溶解し、80℃に保つ。g)〜i)までを加熱溶解し、80℃に保ち、a)〜f)に加えて乳化する。40℃でj)を添加し、37℃まで撹拌しながら冷却する。
(重量%)
a)ミツロウ 0.5
b)ワセリン
2.0
c)スクワラン
8.0
d)ソルビタンセスキオレエート
0.8
e)ポリオキシエチレンオレイルエーテル(20E.O.) 1.2
f)d-δ-トコフェロール 0.2
g)リゾレシチン
2.0
h)精製水
残部
i)防腐剤・酸化防止剤
適量
j)エタノール
7.0
k)配列番号2のsiRNA 0.001
製法:a)〜g)までを加熱溶解し、80℃に保つ。h)〜i)までを加熱溶解し、80℃に保ち、a)〜g)に加えて乳化し、50℃まで撹拌しながら冷却する。50℃でj)を40℃でk)を添加し、37℃まで攪拌冷却する。
(重量%)
a)ミツロウ
0.5
b)ワセリン
2.0
c)スクワラン
8.0
d)ソルビタンセスキオレエート
0.8
e)ポリオキシエチレンオレイルエーテル(20E.O.) 1.2
f)クエルセチン
0.1
g)ホスファチジルセリン
10.0
h)精製水
残部
i)防腐剤・酸化防止剤
適量
j)エタノール
7.0
k)配列番号3のsiRNA 0.000001
製法: a)〜g)までを加熱溶解し、80℃に保つ。h)〜i)までを加熱溶解し、80℃に保ち、a)〜g)に加えて乳化し、50℃まで撹拌しながら冷却する。50℃でj)を、40℃でk)を添加し、37℃まで攪拌冷却する。
(重量%)
a)リゾレシチン
0.001
b)ポリオキシエチレンソルビタンモノラウレート(20E.O.) 2.0
c)エタノール
6.0
d)香料 適量
e)防腐剤・酸化防止剤
適量
f)精製水
残部
g)ヒアルロン酸 0.1
h)配列番号2のsiRNA 5.0
i)配列番号3のsiRNA 5.0
製法: a)〜e)を均一に混合する。f)〜i)を均一に混合し、a)〜e)混合物に加える。
(重量%)
a)水素添加レシチン 0.5
b)ポリオキシエチレンソルビタンモノラウレート(20E.O.) 2.0
c)エタノール
6.0
d)香料
適量
e)防腐剤・酸化防止剤
適量
f)精製水
残部
g)キサンタンガム 0.1
h)配列番号2のsiRNA 10.0
製法:a)〜e)を均一に混合する。f)、g)、h)を均一に混合し、a)〜e)混合物に加える。
Claims (5)
- チロシナーゼをコードするmRNAを特異的に切断するRNA干渉物質を配合することを特徴とする皮膚用組成物であって、チロシナーゼをコードするmRNAを特異的に切断するRNA干渉物質がセンス塩基配列5’- CUGAGAAAUAACUACCUUAAA-3’、アンチセンス塩基配列3’-GAGACUCUUUAUUGAUGGAAU-5’(配列番号1:M27160)であることを特徴とする皮膚用組成物。
- チロシナーゼをコードするmRNAを特異的に切断するRNA干渉物質がセンス塩基配列5’- CAAGGUCAAAUCAUCAUUATT-3’、アンチセンス塩基配列3’-TTGUUCCAGUUUAGUAGUAAU-5’(配列番号2:060959A)であることを特徴とする請求項1記載の皮膚用組成物。
- チロシナーゼをコードするmRNAを特異的に切断するRNA干渉物質がセンス塩基配列5’-CAAUAUGAAUCUGGUUCCATT-3、アンチセンス塩基配列3’-TTGUUAUACUUAGACCAAGGU-5’(配列番号3:075694A)であることを特徴とする請求項1記載の皮膚用組成物。
- 塩基配列がセンス鎖およびアンチセンス鎖の3’末端がそれぞれ2塩基オーバーハングした構造を有する2本鎖RNAであることを特徴とする請求項1〜3に記載のチロシナーゼをコードするmRNAを特異的に切断するRNA干渉物質を配合する皮膚用組成物。
- 塩基配列のセンス鎖とアンチセンス鎖の間にトリミングループを持ち、かつショートヘアピンRNA構造(shRNA)を取りうる請求項1〜3に記載のチロシナーゼをコードするmRNAを特異的に切断するRNA干渉物質を配合する皮膚用組成物。
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