• 대한화장품학회지
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• 제32권2호
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• pp.117-121
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• 2006

collagen을 분해하여 광노화 과정에 매우 중요한 역할을 하는 것으로 알려져 있는 Matrix metallo proteinases (MMP)의 활성 및 저해 인자에 대해서는 지금까지 많은 연구가 진행되어 왔지만, 녹차 카테킨의 영향에 대한 연구는 epigallocatechin-3 gallate (EGCG) 이외에는 별로 알려진 것이 없다. 본 연구에서는 카테킨이 사람 섬유아세포에서의 MMP-1의 발현과 MMP-2의 활성 및 type I procollagen 생성에 미치는 영향을 조사하였다. 또한, 녹차의 대표적인 카테킨인 EGCG를 포함하여 자연적으로 존재하는 여덟개의 카테킨을 모두 사용하여 각각의 활성을 비교하였다. 그 결과, UVA에 의해서 사람 섬유아세포에서 발현되는 MMP-1에 대해 단백질의 양적인 변화는 EGCG 및 gallocatechin-3-gallate (GCG)에서 최대 57.4, 62.8% 감소되었으며, MMP-2의 활성 역시 감소되었다. 반면에, type I procollagen에 대해서는 생성 촉진능을 보였는데, 흥미롭게도 $1{\mu}M$ 이하의 저농도에서만 효능을 나타내었다. 또한 EGCG, GCG, epicatechin-gallate (ECG) 세가지 카테킨이 0.5:1.5:1.3의 비율로 조합된 경우, procollagen 합성에 가장 높은 효과를 나타내었다. 이러한 실험 결과를 통해 녹차 카테킨은 항산화능 뿐만이 아니라 자외선에 의한 MMP의 발현과 활성을 조절함으로써 콜라겐 분해를 억제함과 동시에 콜라겐 생합성을 촉진하는 것이 가능함을 확인하였다. 따라서 녹차 카테킨은 광노화의 억제 및 피부 노화 개선에 훌륭한 천연 소재로서 응용 가능할 것으로 보인다.

• 동의생리병리학회지
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• 제25권3호
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• pp.528-532
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• 2011

This study was designed to investigate the collagen metabolism and tyrosinase activity of Meretrix extracts (ME). The effect of ME on type I procollagen production and collagenase activity in human normal fibroblasts HS68 after UVB (312 nm) irradiation was measured by ELISA method. The tyrosinase activity after treatment of ME was measured as well. Type I procollagen production was recovered by ME in UVB damaged HS68 cells. The increased collagenase activity after UVB damage was significantly recovered by ME. The tyrosinase activity and L-DOPA oxidation were significantly reduced as well. However, the effects on tyrosinase activity and L-DOPA oxidation were not powerful enough to be used as whitening agents. ME showed the anti-wrinkle effects and some whitening effects in vitro. These results suggest that ME may be a useful drug as an anti-wrinkle treatments.

• 생명과학회지
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• 제22권8호
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• pp.1092-1098
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• 2012

본 연구에서는 우방자를 70% 에탄올로 추출하여 얻어진 추출물을 n-hexane, methylene chloride, ethyl acetate로 순차용매 분획하였다. 각 분획물에 대해 activity-guided isolation을 수행하여 활성물질의 분리 정제를 실시하였다. 활성을 나타내는 물질은 silica gel chromatography (230 mesh), sephadex LH 20, recrystallization method를 이용하여 분리하였다. 각 화합물의 화학구조는 NMR 스펙트럼 데이터 해석하였고 arctiin, arctigenin, diarctigenin, matairesinol 으로 동정하였다. 이들을 human dermal fibroblast HS68 세포에 처리하여 얻어진 상등액은 ELISA kit를 활용하여 procollagen type I 생합성과 MMP-1 저해활성을 측정하였다. 측정결과 procollagen type I 생합성과 MMP-1 저해활성 결과 모두 arctiin이 가장 우수한 결과를 보였다. 이와 같은 결과를 통해 우방자에서 분리한 리그난 화합물들을 이용하여 주름개선 소재로 개발할 수 있을 것으로 사료 된다.

• International Journal of Oral Biology
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• 제31권3호
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• pp.93-98
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• 2006

Biosynthetic processing of fibrillar procollagens is essential for producing mature collagen monomers that polymerize into fibrils by a self-assembly process. The metalloproteinase ADAMTS-2 is the major enzyme that processes the N-propeptide of type I procollagen in the skin and also of type II and type III procollagens. Mutations in the ADAMTS-2 gene cause dermatospraxis in animals and Ehlers-Danlos syndrome VIIC in humans, both of which are characterized by the accumulation of type I pN-collagen and the formation of abnormal collagen fibrils in the skin. Despite its importance in procollagen processing, little is known about the regulation of ADAMTS-2 expression. Here, we demonstrate that ADAMTS-2 can be regulated by 1,25-dihydroxyvitamin D3, an inducer of type I procollagen synthesis. This steroid hormone induced ADAMTS-2 mRNA ${\sim}3-fold$ in MG-63 human osteosarcoma cells and MC3T3-E1 murine osteoblastic cells. This induction was dose- and time-dependent in MG-63 cells. In contrast, secreted ADAMTS-2 protein was increased only 1.4-fold with 1,25-dihydroxyvitamin D3. Finally, 1,25-dihydroxyvitamin D3 in the presence of ascorbate increased levels of secreted ADAMTS-2 1.9-fold over ascorbate treatment alone, which did not appreciably change ADAMTS-2 expression. These data indicate that the regulation of ADAMTS-2 is coupled with the synthesis of type I procollagen through 1,25-dihydroxyvitamin D3 signaling and may involve translational or posttranslational control.

• 대한본초학회지
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• 제30권6호
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• pp.1-6
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• 2015

Objectives : Draconis Resina (DR), the resin of Daemonorops draco Bl., is used to circulate the blood and to stop bleeding. It also has been used to generate flesh including ulceration. The present study investigated the effects of DR extract on collagen metabolism in human fibroblasts and tyrosinase activity in mushroom tyrosinase.Methods : The effect of DR extract on type I procollagen production (collagen type I synthesis) and collagenase (matrix metalloproteinase-1, henceforth referred as MMP-1) activity in human normal fibroblasts cell line. Hs68 cells after ultraviolet B (UVB, 312 nm) irradiation was measured using the enzyme - linked immunosorbent assay (ELISA). The tyrosinase activity was also measured to find out the whitening effects in mushroom tyrosinase by ELISA method.Results : There was no cytotoxicity at DR extract at concentrations of 10 μg/ml, 30 μg/ml, and 100 μg/ml. DR extract significantly inhibited the increase of collagenase activity, whereas it did not show on the reduction of type I procollagen in UVB damaged Hs68 cells. DR extract did not reduce the L - DOPA oxidation. However, it significantly reduced the tyrosinase activity by DR extract at concentraions of 0.1 mg/ml, 1 mg/ml and 10 mg/ml.Conclusions : In conclusion, DR showed the anti-wrinkle and whitening effects via the inhibition of collagenase production and the tyrosinase activity. These results suggest that DR may have potential as an anti-aging ingredient in cosmetic herb markets.

• 대한한의학방제학회지
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• 제14권2호
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• pp.67-75
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• 2006

The natural plants were screened for new cosmetic materials. Many parts of Nelumbo nucifera has been investigated for anti-wrinkling and anti-furrowing effects. The leaves. flowers and stamens of Nelumbo nucifera were extracted with ethanol or distilled water. The effects of cell viability and $H_2O_2-induced$ cytotoxicity were studied on CCD-986sk human fibroblast cell line by MTT assay. We measured various effects related to skin such as the synthesis of MMP-1 and type I procollagen. The ethanol extract of Nelumbo nucifera leaves (ENL) at concentrations of 30 ${\mu}g/ml$ showed maximum cell viability on CCD-986sk cells by 129.70%. and $H_2O_2-induced$ cytotoxicity was blocked by ENL (5. 10. 20. 30. and 40 ${\mu}g/ml$) concentration-dependently. The synthesis of MMP-1 and type I procollagen were positive in ENL. These results suggest that ENL has anti-oxidant and anti-furrowing effects.

• 한국응용과학기술학회지
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• 제38권5호
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• pp.1209-1218
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• 2021

본 연구는 화장품 소재로서 우슬(Achyranthes japonica Nakai)의 가능성을 확인하기 위한 것이다. 우슬 추출물이 가지고 있는 항산화, 항염증, 항주름 효과를 측정하였다. 각각의 식물 재료는 70% 에탄올을 이용하여 우슬 뿌리(Achyranthes japonica Nakai roots, AJNR)와 우슬 줄기(Achyranthes japonica Nakai stalks, AJNS)로부터 추출하였다. RAW 264.7 세포를 배양하여 추출물의 Nitric oxide assay를 진행하였고, 섬유아세포 CCD-986sk를 배양하여 추출물의 MMP-1 assay, Type I procollagen synthesis assay를 실시하였다. 이 연구의 결과, 항산화 활성은 우슬 뿌리와 우슬 줄기 모두 우수하였고, 뿌리는 함염증 효과가 월등하게 우수하였으며 줄기는 뿌리에 비해 MMP-1 저해 활성과 Type I procollagen 합성 효과가 조금 더 높았다. 이 연구의 결과, 우슬 뿌리와 우슬 줄기의 항산화 활성은 유사한 수준으로 우수하였고, 뿌리의 항염 활성은 줄기보다 월등하게 높았다. MMP-1 저해 활성과 Type I procollagen 합성 효과는 대체적으로 우수하였는데 줄기가 뿌리에 비해 가 조금 더 뛰어났다. 그러므로 우슬은 항산화, 항염증, 항주름의 활성을 갖는 기능성 화장품 소재로서 활용이 가능할 것으로 판단된다.

• 대한본초학회지
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• 제26권1호
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• pp.29-33
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• 2011

Objectives : This study was designed to investigate the collagen metabolism and tyrosinase activity of Angelicae Gigantis Radix extracts (AGR). Methods : The effect of AGR on type I procollagen production and collagenase activity in human normal fibroblasts HS68 after UVB (312 nm) irradiation was measured by ELISA method. The tyrosinase activity after treatment of AGR was measured. Results : Type I procollagen production was recovered by AGR in UVB damaged HS68 cells. The increased collagenase activity after UVB damage was significantly recovered by AGR and the tyrosinase activity was significantly reduced. However, the L-DOPA oxidation was not changed. Conclusion : AGR showed the anti-wrinkle effects and whitening effects in vitro. These results suggest that AGR may have potential as an anti-aging ingredient in cosmetic herbs.

• 대한약침학회지
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• 제14권1호
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• pp.51-59
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• 2011

Objectives : This study was designed to investigate the collagen metabolism and tyrosinase activity of Sipgeondaebo-tang Pharmacopuncture extracts (SP). Methods : The effect of SP on type I procollagen production and collagenase activity in human normal fibroblasts HS68 after UVB (312 nm) irradiation was measured by ELISA method. The tyrosinase activity after treatment of SP was measured as well. Results : Type I procollagen production was recovered by SP in UVB damaged HS68 cells. The increased collagenase activity after UVB damage was significantly recovered by SP. The tyrosinase activity was significantly reduced as well. However, the L-DOPA oxidation was not changed. Conclusion : SP showed the anti-wrinkle effects and whitening effects in vitro. These results suggest that SP may be a potential pharmacopuncture as an anti-aging pharmacopuncture treatments.

• Journal of Microbiology and Biotechnology
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• 제27권8호
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• pp.1386-1391
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• 2017

The bioactivities of boxthron fruits, a source of oriental medicine, are well known, whereas phytochemical studies of the boxthorn stem are rare. In this study, the stem extract of boxthorn (Lycium chinense Miller) and its subfractions were evaluated for their effects on nitric oxide (NO) inhibition and procollagen type I peptide (PIP) synthesis. A phenolic amide isolated from the stem extract was also assayed for these effects. The compound, N-trans-feruloyltyramine, was identified by $^1H$, $^{13}C$, and 2D-nuclear magnetic resonance analyses. In NO inhibition, the chloroform fraction (CF) exhibited the strongest inhibitory activity ($MIC_{50}=24.69{\mu}g/ml$) among the subfractions of the ethanol extract (EE). N-trans-feruloyltyramine isolated from the CF showed strong NO inhibitory activity, presenting with an $MIC_{50}$ of $31.36{\mu}g/ml$. The EE, CF, and N-trans-feruloyltyramine shown to have NO inhibition activity were assayed for the activity of PIP synthesis. The EE and CF showed relatively high PIP values of 38.8% and 24.21% at $100{\mu}g/ml$, respectively. The PIP value for $20{\mu}g/ml$ N-trans-feruloyltyramine showed a 36% increase compared with the non-treated control, whereas that treated with $20{\mu}g/ml$ ascorbic acid as a positive control showed a 13% increase. The results suggest that the proper stem extract of boxthorn stem could be efficiently used to produce good cosmetic effects.