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dc.contributor.authorPan, JPen_US
dc.contributor.authorCheng, TMen_US
dc.contributor.authorChou, SCen_US
dc.contributor.authorLai, STen_US
dc.date.accessioned2014-12-08T15:41:17Z-
dc.date.available2014-12-08T15:41:17Z-
dc.date.issued2003-03-01en_US
dc.identifier.issn0929-6646en_US
dc.identifier.urihttp://hdl.handle.net/11536/28071-
dc.description.abstractBackground and Purpose: It is well documented that oxidized low-density lipoproteins (LDLs) can stimulate human vascular endothelial cells to produce monocyte chemoattractant protein-I (MCP-I). Vitamin c is known to be an important antioxidant for vasodilation. The purpose of this study was to determine whether pretreatment with vitamin could protect against oxidized LDL induced expression of MCP-1 in cultured human umbilical vein endothelial cells (HUVECs). Methods: Cultured HUVECs were used for desired experiments before passage 4. Lysophosphatidylcholine (lyso PC), an oxidized components of LDL, was designated as the stimulator for MPC-1 synthesis from cultured HUVECs MCP-1 concentration in the cultured media were determined by enzyme-linked immunosorbent assay MCP-1 RNA was evaluated by a semi quantitative reverse transcriptase-polymerase chain reaction. Results: HUVECs secreted MCP-1 within 30 minutes after exposure to 50 muM lysoPC. Compared with samples treated with lyso PC alone, pretreatment with vitamin C in concentration of 50, 100, 150 and 200 muM. reduced levels of MCP-1 in the culture medium by 44%, 51%, 60% and 67%, respectively, while levels of MCP-1 mRNA decreased by 15%, 18%, 80% and 82%, respectively. Conclusions: Our findings imply that pretreatment with vitamin C can suppress lysoPC induced expression and secretion of MCP-1 in cultured HUVECs. Therefore, vitamin C is protective against lyso mediated inflammatory insults to the vascular endothelium in vitro.en_US
dc.language.isoen_USen_US
dc.subjectcell cultureen_US
dc.subjectlysophosphatidylcholinesen_US
dc.subjectmonocyteen_US
dc.subjectchemoattractant protein-1en_US
dc.subjectprotein kinase Cen_US
dc.subjectascorbic aciden_US
dc.titleVitamin C protects against lysophosphatidylcholine-induced expression of monocyte chemoattractant protein-1 in cultured human umbilical vein endothelial cellsen_US
dc.typeArticleen_US
dc.identifier.journalJOURNAL OF THE FORMOSAN MEDICAL ASSOCIATIONen_US
dc.citation.volume102en_US
dc.citation.issue3en_US
dc.citation.spage151en_US
dc.citation.epage157en_US
dc.contributor.department生物科技學系zh_TW
dc.contributor.departmentDepartment of Biological Science and Technologyen_US
dc.identifier.wosnumberWOS:000184724200003-
dc.citation.woscount5-
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