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Increased collagen synthesis in skin fibroblasts from patients with primary hypertrophic osteoarthropathy. Evidence for trans-activational regulation of collagen transcription.

作者信息

Padula S J, Broketa G, Sampieri A, Arakawa M, Matucci-Cerinic M, Downie E, Korn J H

机构信息

University of Connecticut School of Medicine, Farmington.

出版信息

Arthritis Rheum. 1994 Sep;37(9):1386-94. doi: 10.1002/art.1780370918.

DOI:10.1002/art.1780370918
PMID:7945504
Abstract

OBJECTIVE

To investigate collagen synthesis in skin fibroblasts from patients with primary hypertrophic osteoarthropathy (HOA), a disorder characterized clinically by skin thickening.

METHODS

Collagenase-digestible protein, messenger RNA (mRNA) levels, and transcriptional activity of the alpha 1(I) procollagen gene were assessed in skin-derived fibroblast lines.

RESULTS

Compared with fibroblasts from uninvolved skin, fibroblasts from involved skin had elevated levels of collagen synthesis and alpha 1(I) procollagen mRNA, and increased transcriptional activity of the alpha 1(I) procollagen promoter.

CONCLUSION

Abnormalities of collagen synthesis in fibroblasts from patients with primary HOA can be accounted for, at least in part, by a trans-activated up-regulation of collagen transcription.

摘要

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