PMID- 21397653 OWN - NLM STAT- MEDLINE DCOM- 20110906 LR - 20190816 IS - 1096-0295 (Electronic) IS - 0273-2300 (Linking) VI - 60 IP - 1 DP - 2011 Jun TI - Protective effects of Chlorella-derived peptide on UVB-induced production of MMP-1 and degradation of procollagen genes in human skin fibroblasts. PG - 112-9 LID - 10.1016/j.yrtph.2011.03.001 [doi] AB - UV exposure is known to induce premature aging, which is mediated by matrix metalloproteinase-1 (MMP-1) activity. MMP-1 mRNA expression is up-regulated by elevated cysteine-rich 61 (CYR61) and monocyte chemoattractant protein-1 (MCP-1) via action of transcription factor AP-1. Collagen is degraded by MMP-1 activity but synthesized by transforming growth factor-beta (TGF-beta) signal. Chlorella has been shown to inhibit UVB-induced MMP-1 level, however its regulatory molecular mechanisms have not been studied. In this study, Chlorella derived peptide (CDP) was added to skin fibroblasts after UVB irradiation and the expression of MMP-1, CYR61, procollagen, c-fos, c-jun, and TGF-beta receptor (TbRII) mRNA and MCP-1 production were investigated. CDP (10 or 5mg/ml) diminished UVB-induced MMP-1 and CYR61 mRNA expression and MCP-1 production, whereas, UVB-suppressed procollagen and TbRII mRNA was restored by CDP treatment. UVB-induced c-fos and c-jun expressions were also inhibited by the CDP treatment. Taken together, CDP inhibits UVB-induced MMP-1 expression in skin fibroblasts by suppressing expression of AP-1 and CYR61 and MCP-1 production. CI - Copyright (c) 2011 Elsevier Inc. All rights reserved. FAU - Chen, Chiu-Lan AU - Chen CL AD - Department of Pharmacy, Chia-Nan University of Pharmacy & Science, Tainan, Taiwan. FAU - Liou, Shu-Fen AU - Liou SF FAU - Chen, Su-Jong AU - Chen SJ FAU - Shih, Mei-Fen AU - Shih MF LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110321 PL - Netherlands TA - Regul Toxicol Pharmacol JT - Regulatory toxicology and pharmacology : RTP JID - 8214983 RN - 0 (CCL2 protein, human) RN - 0 (CCN1 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Cysteine-Rich Protein 61) RN - 0 (Peptides) RN - 0 (Plant Extracts) RN - 0 (Plant Proteins) RN - 0 (Procollagen) RN - 0 (Transcription Factor AP-1) RN - EC 3.4.24.7 (MMP1 protein, human) RN - EC 3.4.24.7 (Matrix Metalloproteinase 1) SB - IM MH - Cell Proliferation/drug effects/radiation effects MH - Cell Survival/drug effects/radiation effects MH - Cells, Cultured MH - Chemokine CCL2/genetics/metabolism MH - Chlorella/*chemistry MH - Cysteine-Rich Protein 61/genetics/metabolism MH - Fibroblasts/*drug effects/metabolism/radiation effects MH - Gene Expression/*drug effects/radiation effects MH - Humans MH - Matrix Metalloproteinase 1/genetics/*metabolism MH - Peptides/isolation & purification/*pharmacology MH - Plant Extracts/pharmacology MH - Plant Proteins/isolation & purification/pharmacology MH - Procollagen/genetics/*metabolism/radiation effects MH - Skin/*drug effects/metabolism/radiation effects MH - Transcription Factor AP-1/genetics/metabolism MH - Ultraviolet Rays EDAT- 2011/03/15 06:00 MHDA- 2011/09/07 06:00 CRDT- 2011/03/15 06:00 PHST- 2010/10/28 00:00 [received] PHST- 2011/02/08 00:00 [revised] PHST- 2011/03/02 00:00 [accepted] PHST- 2011/03/15 06:00 [entrez] PHST- 2011/03/15 06:00 [pubmed] PHST- 2011/09/07 06:00 [medline] AID - S0273-2300(11)00054-7 [pii] AID - 10.1016/j.yrtph.2011.03.001 [doi] PST - ppublish SO - Regul Toxicol Pharmacol. 2011 Jun;60(1):112-9. doi: 10.1016/j.yrtph.2011.03.001. Epub 2011 Mar 21.