PMID- 12421479 OWN - NLM STAT- MEDLINE DCOM- 20040802 LR - 20131121 IS - 1671-4083 (Print) IS - 1671-4083 (Linking) VI - 23 IP - 11 DP - 2002 Nov TI - Protective effects of polypeptide from Chlamys farreri on Hela cells damaged by ultraviolet A. PG - 1018-22 AB - AIM: To study the protective effect of polypeptide isolated from Chlamys farreri (PCF) on Hela cells damaged by ultraviolet A (UVA) in vitro. METHODS: Cell proliferation was determined by MTT method; intra-cellular free calcium [Ca2+]i and rates of apoptosis and death were measured by flow cytometry (FCM). RESULTS: PCF (0.5 %-2 %) enhanced the activities of glutathione peroxidase (GSH-px), superoxide dismutase (SOD), and catalase (CAT), and stimulated cell proliferation. The concentration of [Ca2+]i was increased while the amounts of MDA and the rates of apoptosis and death of the cells were decreased. The differences between the PCF groups and control group were significant (P<0.05, P<0.01). CONCLUSION: PCF protected Hela cells against damage by UVA via its anti-oxidative mechanisms. FAU - Yao, Ru-Yong AU - Yao RY AD - Hospital of Medical College, Qingdao University, Qingdao 266003, China. FAU - Wang, Chun-Bo AU - Wang CB LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Acta Pharmacol Sin JT - Acta pharmacologica Sinica JID - 100956087 RN - 0 (Antioxidants) RN - 0 (Materia Medica) RN - 0 (Peptides) RN - EC 1.11.1.6 (Catalase) RN - EC 1.11.1.9 (Glutathione Peroxidase) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - SY7Q814VUP (Calcium) SB - IM MH - Animals MH - Antioxidants/isolation & purification/*pharmacology MH - *Apoptosis/drug effects/radiation effects MH - Calcium/metabolism MH - Catalase/metabolism MH - Glutathione Peroxidase/metabolism MH - HeLa Cells MH - Humans MH - Materia Medica/isolation & purification/*pharmacology MH - Ostreidae/*chemistry MH - Peptides/isolation & purification/pharmacology MH - Superoxide Dismutase/metabolism MH - *Ultraviolet Rays EDAT- 2002/11/08 04:00 MHDA- 2004/08/03 05:00 CRDT- 2002/11/08 04:00 PHST- 2002/11/08 04:00 [pubmed] PHST- 2004/08/03 05:00 [medline] PHST- 2002/11/08 04:00 [entrez] PST - ppublish SO - Acta Pharmacol Sin. 2002 Nov;23(11):1018-22.