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. 1989 Mar;83(3):791–795. doi: 10.1172/JCI113959

Collagen gene expression by cultured human skin fibroblasts. Abundant steady-state levels of type VI procollagen messenger RNAs.

D R Olsen 1, J Peltonen 1, S Jaakkola 1, M L Chu 1, J Uitto 1
PMCID: PMC303749  PMID: 2921321

Abstract

Previous studies have suggested that procollagen types I and III are the major collagenous gene products of cultured human skin fibroblasts. In this study the expression of 10 different genes, encoding the subunit polypeptides for collagen types I-VI, by human skin fibroblasts in culture was analyzed by molecular hybridizations. Northern transfer analysis demonstrated the presence of specific mRNA transcripts for collagen types I, III, IV, V, and VI, but not for type II collagen. Quantitation of the abundance of these mRNAs by slot blot hybridizations revealed that type I, III, and VI procollagens were the major collagenous gene products of skin fibroblasts in culture. The mRNAs for type IV and V collagens represented only a small percentage of the total collagenous mRNA transcripts. Further analysis by in situ hybridization demonstrated that the majority of the cultured cells coexpressed the genes for type I, III, and VI procollagen pro-alpha chains. Further in situ hybridization analyses revealed the expression of type VI collagen genes in normal human skin. These data demonstrate that human skin fibroblast cultures can be used to study the transcriptional regulation of at least nine genetically distinct procollagen genes. The data further suggest that type VI collagen, in addition to types I and III, may be a major collagenous component of human skin.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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