Title : Bleomycin regulation of transforming growth factor-beta mRNA in rat lung fibroblasts.

Pub. Date : 1992 Feb

PMID : 1371688






6 Functional Relationships(s)
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1 Bleomycin treatment of rat lung fibroblast cultures resulted in an increase of total cellular transforming growth factor-beta (TGF-beta) mRNA and increased secretion of TGF-beta protein into the conditioned media. Bleomycin transforming growth factor, beta 1 Rattus norvegicus
2 Bleomycin treatment of rat lung fibroblast cultures resulted in an increase of total cellular transforming growth factor-beta (TGF-beta) mRNA and increased secretion of TGF-beta protein into the conditioned media. Bleomycin transforming growth factor, beta 1 Rattus norvegicus
3 The bleomycin-induced increase of TGF-beta mRNA was decreased by cells cultured in the presence of either cycloheximide, an inhibitor of protein synthesis, or 2-mercapto-1-(beta-4-pyridethyl) benzimidazole, an inhibitor of RNA synthesis. Bleomycin transforming growth factor, beta 1 Rattus norvegicus
4 Transcription of TGF-beta mRNA was increased 12 h after bleomycin treatment, whereas the transcription of type I procollagen, type III procollagen, and beta-actin mRNAs were increased after 48 h of bleomycin treatment. Bleomycin transforming growth factor, beta 1 Rattus norvegicus
5 These results suggest bleomycin regulation of TGF-beta at both the mRNA and protein levels. Bleomycin transforming growth factor, beta 1 Rattus norvegicus
6 Following bleomycin treatment, TGF-beta mRNA was shown to be located more prominently in those fibroblasts that contain primarily collagen type I mRNAs. Bleomycin transforming growth factor, beta 1 Rattus norvegicus