JP2022545243A - 皮膚状態改善活性を有するペプチド、及びその用途 - Google Patents
皮膚状態改善活性を有するペプチド、及びその用途 Download PDFInfo
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Abstract
Description
自動ペプチド合成器(Milligen 9050,Millipore、米国)を利用し、下記[表1]に記載された配列番号1のアミノ酸配列を有するペプチドを合成し、C18逆相高性能液体クロマトグラフィ(HPLC)(Waters Associates、米国)を利用し、それら合成されたペプチドを純水分離した。カラムは、ACQUITY UPLC BEH300 C18(2.1mmX100mm、1.7μm,Waters Co.、米国)を利用した。
マウス線維芽細胞であるNIH3T3細胞を、6ウェルプレートに、5×103細胞/ウェルの密度でシーディングした後、それを16時間培養した。その後、培養培地を無血清培地(serum-free media)に替えた後、そこに、配列番号1のアミノ酸配列からなるペプチドを、10μM、50μMまたは100μMで添加し、それらを24時間培養した。その後、プロコラーゲン1α ELISA kit(US Biological Lifescience、米国)を使用し、培地内プロコラーゲン1αの含量を測定した。一方、対照群として、未処理群(Con)を使用し、陽性対照群としては、100nMのbFGFを添加した群、及び5ng/mlのTGF-β1を添加した群を使用した。
本実施例においては、ミトコンドリアの生物発生(mitochondrial biogenesis)関連遺伝子であるPPAR-γ、PPAR-δ及びPGC-1αの発現レベルを測定することにより、線維芽細胞の細胞活性に、一実施例によるペプチドが及ぼす影響を確認するものである。具体的には、マウス線維芽細胞であるNIH3T3細胞を、6ウェルプレートに3×105細胞/ウェルの密度でシーディングした後、それを16時間培養した。その後、培養培地を無血清培地に替えた後、そこに、配列番号1のアミノ酸配列からなるペプチドを、10μM、50μMまたは100μMで添加し、それらを24時間培養した。前記培養された細胞からmRNAを抽出した後、cDNA synthesis kit & PCR pre-mix(Intron、韓国)を使用し、前記抽出されたmRNAを逆転写させることにより、それぞれのcDNAを合成した。その後、前述のcDNAと、PPAR-γ、PPAR-δ及びPGC-1αのプライマーを使用し、重合酵素連鎖反応(PCR:polymerase chain reaction)を遂行した。一方、対照群及び陽性対照群は、実施例2と同一群を使用し、本実施例で使用したプライマーのヌクレオチド配列は、下記表2の通りである。
マウス線維芽細胞であるNIH3T3細胞、またはヒト角質形成細胞であるHaCaT細胞を、6ウェルプレートに、それぞれ3×105細胞/ウェルの密度でシーディングした後、それらを16時間培養した。その後、培養培地を無血清培地に替えた後、そこに、配列番号1のアミノ酸配列からなるペプチドを、10μM、50μMまたは100μMで添加し、それらを1時間培養した。前記培養された細胞を含むウェルを、リン酸緩衝生理食塩水(PBS)で洗浄した後、NIH3T3細胞またはHaCaT細胞に、それぞれ6J/cm2または15J/cm2の紫外線を照射することにより、細胞死滅蛋白質の発現増大を誘導した。その後、培養培地を無血清培地に替えた後、そこに、配列番号1のアミノ酸配列からなるペプチドを、それぞれ10μM、50μMまたは100μMで添加し、それらを24時間培養した。前記培養された細胞に、溶解バッファを添加し、細胞溶解物を得た後、cleaved PARP-1及びcleaved caspase-3抗体(Santacruz Biotechnology、米国)を使用し、ウェスタンブロットを遂行した。一方、対照群として、未処理群(Con)を使用し、陰性対照群及び陽性対照群としては、それぞれ紫外線の照射後の未処理群(NC)、及び紫外線の照射後、2.5mMのNaCを添加した群を使用した。
マウス線維芽細胞であるNIH3T3細胞を、6ウェルプレートに、3×105細胞/ウェルの密度でシーディングした後、それを16時間培養した。その後、培養培地を無血清培地に替えた後、そこに、配列番号1のアミノ酸配列からなるペプチドを、10μM、50μMまたは100μMで添加し、それらを1時間培養した。前記培養された細胞を含むウェルをリン酸緩衝生理食塩水で洗浄した後、NIH3T3細胞に、それぞれ6J/cm2の紫外線を照射することにより、MMP-1及びMMP-2の発現増大を誘導した。その後、培養培地を無血清培地に替えた後、そこに、配列番号1のアミノ酸配列からなるペプチドを、10μM、50μMまたは100μMで添加し、それらを24時間培養した。その後、前記培養された細胞に溶解バッファを添加し、細胞溶解物を得た後、MMP-1の発現を測定するためにMMP-1抗体(Cell Signaling、米国)を使用し、ウェスタンブロットを遂行した。
本実施例においては、真皮の構成成分と知られたCol1a1、フィブロネクチン及びエラスチンの発現を介し、線維芽細胞の活性変化を評価し、抗老化遺伝子であるSIRT1、及び皮膚障壁構成遺伝子であるAQP3の発現を介し、角質形成細胞の活性変化を評価することにより、前記細胞の活性回復に、一実施例によるペプチドが及ぼす影響を確認するものである。具体的には、マウス線維芽細胞であるNIH3T3細胞、またはヒト角質形成細胞であるHaCaT細胞を、6ウェルプレートに、それぞれ3×105細胞/ウェルの密度でシーディングした後、それらを16時間培養した。その後、培養培地を無血清培地に替えた後、そこに、配列番号1のアミノ酸配列からなるペプチドを、10μM、50μMまたは100μMで添加し、それらを1時間培養した。前記培養された細胞を含むウェルをリン酸緩衝生理食塩水で洗浄した後、NIH3T3細胞またはHaCaT細胞に、それぞれ6J/cm2または20J/cm2の紫外線を照射することにより、細胞活性の阻害を誘導した。その後、培養培地を無血清培地に替えた後、そこに、配列番号1のアミノ酸配列からなるペプチドを、10μM、50μMまたは100μMで添加し、それらを6時間培養した。前記培養された細胞からmRNAを抽出した後、cDNA synthesis kit & PCR pre-mix(Intron、韓国)を使用し、前記抽出されたmRNAを逆転写させることにより、それぞれのcDNAを合成した。その後、線維芽細胞由来cDNA、及びCol1a1、フィブロネクチン及びエラスチンのプライマー、並びに角質形成細胞由来cDNA、及びSIRT1及びAQP3のプライマーを使用し、重合酵素連鎖反応を遂行した。一方、対照群、陰性対照群及び陽性対照群は、実施例4と同一群を使用し、本実施例で使用したプライマーのヌクレオチド配列は、下記表3及び表4の通りである。
ヒト角質形成細胞であるHaCaT細胞を、6ウェルプレートに、3×105細胞/ウェルの密度でシーディングした後、それを16時間培養した。その後、培養培地を無血清培地に替えた後、そこに、配列番号1のアミノ酸配列からなるペプチドを、10μM、50μMまたは100μMで添加し、それらを1時間培養した。前記培養された細胞を含むウェルをリン酸緩衝生理食塩水で洗浄した後、HaCaT細胞に、15mJ/cm2の紫外線を照射することにより、炎症性因子、すなわち、炎症性サトカインの発現増大を誘導した。前記培養された細胞からmRNAを抽出した後、cDNA synthesis kit & PCR pre-mix(Intron、韓国)を使用し、前記抽出されたmRNAを逆転写させることにより、それぞれのcDNAを合成した。その後、前記cDNA、並びにTNF-α、COX-2、IL-1β及びIL-6のプライマーを使用し、重合酵素連鎖反応を遂行した。一方、対照群及び陽性対照群は、実施例4と同一群を使用し、本実施例で使用したプライマーのヌクレオチド配列は、下記表5の通りである。
Claims (9)
- 配列番号1のアミノ酸配列からなる、ペプチド。
- 前記ペプチドのN-末端は、アセチル基、フルオレニルメトキシカルボニル基、ホルミル基、パルミトイル基、ミリスチル基、ステアリル基、ブトキシカルボニル基、アリルオキシカルボニル基及びポリエチレングリコール(PEG)からなる群のうちから選択されるいずれか1つの保護基と結合されたものである、請求項1に記載のペプチド。
- 前記ペプチドのC-末端は、アミノ基(-NH2)、三次アルキル基及びアジド(-NHNH2)からなる群のうちから選択されるいずれか1つの保護基と結合されたものである、請求項1に記載のペプチド。
- 前記ペプチドは、下記のところような特性から選択されるいずれか1以上を示すものである、請求項1に記載のペプチド:
(a)線維芽細胞及び角質形成細胞の死滅抑制、
(b)コラーゲンの合成促進、
(c)マトリックスメタロプロテアーゼの発現抑制、
(d)線維芽細胞及び角質形成細胞の活性回復、及び
(e)炎症性サトカインの発現抑制。 - 請求項1ないし4のうちいずれか1項に記載のペプチドを有効成分として含む、皮膚状態改善用化粧料組成物。
- 前記皮膚状態改善は、しわ改善、皮膚弾力改善、傷再生、皮膚老化抑剤、または炎症性皮膚疾患の緩和である、請求項5に記載の化粧料組成物。
- 前記皮膚老化は、紫外線による皮膚老化である、請求項6に記載の化粧料組成物。
- 請求項1ないし4のうちいずれか1項に記載のペプチドを有効成分として含む、炎症性皮膚疾患の予防用または治療用の薬剤学的組成物。
- 前記炎症性皮膚疾患は、にきび、アトピー性皮膚炎、乾癬、脂漏性皮膚炎、接触性皮膚炎、紅斑性ループスまたは丘疹状じんま疹である、請求項7に記載の薬剤学的組成物。
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