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Nuclear factor-kappa B mediates TNF-alpha inhibitory effect on alpha 2(I) collagen (COL1A2) gene transcription in human dermal fibroblasts

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dc.contributor.author정기양-
dc.date.accessioned2020-01-23T05:22:08Z-
dc.date.available2020-01-23T05:22:08Z-
dc.date.issued1999-
dc.identifier.issn0022-1767-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/174223-
dc.description.abstractAmong its plethora of activities as an inflammatory mediator, TNF-alpha has potent regulatory control on extracellular matrix production and degradation. Earlier studies have documented that TNF-alpha inhibits type I collagen gene (COL1A2) expression at the transcriptional level, but the characterization of the transcription factors involved has been elusive. In the present study, using transient cell transfection of human dermal fibroblasts with a battery of 5' end deletion/chloramphenicol acetyltransferase (CAT) reporter gene constructs, we have characterized the TNF-alpha response element of the COL1A2 promoter. The TNF-alpha response element was attributed to a specific region that comprises noncanonical activator protein-1 (AP-1) (CGAGTCA) and NF-kappa B (AGAGTTTCCC) binding sites. TNF-alpha effect was eliminated by a 2-bp substitution mutation in the NF-kappa B1 binding half site of the NF-kappa B cis element. Electrophoretic mobility shift assays (EMSA) showed that recombinant human NF-kappa B heterodimers as well as NF-kappa B1 and RelA homodimers, but not AP-1, were capable of binding this element. Further, EMSA with human fibroblast nuclear extracts demonstrated enhanced binding of a single, specific complex within 5 min of TNF-alpha stimulation, which reached a plateau by 1 h and was not affected by preincubation of cells with cycloheximide. Gel supershift assays identified the complex as the NF-kappa B (p50/p65) heterodimer, whereas Abs to nuclear factor of activated T cells (NF-AT) and Jun family members failed to recognize the complex. These data suggest that in fibroblasts TNF-alpha activates and initiates the nuclear translocation of NF-kappa B that binds a divergent NF-kappa B element and plays a critical role in the observed inhibition of alpha 2(I) collagen gene transcription.-
dc.description.statementOfResponsibilityopen-
dc.languageEnglish-
dc.publisherAmerican Association of Immunologists-
dc.relation.isPartOfJournal of Immunology-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.subject.MESHCarrier Proteins/isolation & purification-
dc.subject.MESHCells, Cultured-
dc.subject.MESHCollagen/antagonists & inhibitors*-
dc.subject.MESHCollagen/genetics*-
dc.subject.MESHFibroblasts/metabolism*-
dc.subject.MESHGene Expression Regulation/immunology*-
dc.subject.MESHHumans-
dc.subject.MESHMutation/immunology-
dc.subject.MESHNF-kappa B/metabolism*-
dc.subject.MESHPromoter Regions, Genetic/immunology-
dc.subject.MESHProtein Binding/immunology-
dc.subject.MESHResponse Elements/immunology-
dc.subject.MESHTumor Necrosis Factor-alpha/genetics-
dc.subject.MESHTumor Necrosis Factor-alpha/physiology*-
dc.titleNuclear factor-kappa B mediates TNF-alpha inhibitory effect on alpha 2(I) collagen (COL1A2) gene transcription in human dermal fibroblasts-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Dermatology (피부과학교실)-
dc.contributor.googleauthorDavid J. Kouba-
dc.contributor.googleauthorKee-Yang Chung-
dc.contributor.googleauthorTakafumi Nishiyama-
dc.contributor.googleauthorLaurence Vindevoghel-
dc.contributor.googleauthorAtsushi Kon-
dc.contributor.googleauthorJohn F. Klement-
dc.contributor.googleauthorJouni Uitto-
dc.contributor.googleauthorAlain Mauviel-
dc.contributor.localIdA03582-
dc.relation.journalcodeJ01450-
dc.identifier.eissn1550-6606-
dc.identifier.pmid10201951-
dc.contributor.alternativeNameChung, Kee Yang-
dc.contributor.affiliatedAuthor정기양-
dc.citation.volume162-
dc.citation.number7-
dc.citation.startPage4226-
dc.citation.endPage4234-
dc.identifier.bibliographicCitationJournal of Immunology, Vol.162(7) : 4226-4234, 1999-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Dermatology (피부과학교실) > 1. Journal Papers

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