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J Cancer Res Clin Oncol. 1997;123(6):331-6.

Transformation-related expression of a low-molecular-mass tropomyosin isoform TM5/TM30nm in transformed rat fibroblastic cell lines.

Author information

1
Department of Molecular and Developmental Science, Tokai University, Ischara, Japan.

Abstract

We cloned a full-length rat TM5/TM30nm cDNA. Using this cDNA as a probe, we demonstrated that expression of TM5/TM30nm mRNA was higher in the tumorigenic rat fibroblastic cell lines SR-3Y1-2 and fos-SR-3Y1-202 than in the normal cell line 3Y1. High expression of TM5/TM30nm protein in SR-3Y1-2 and fos-SR-3Y1-202 cells was also detected by Western blot analysis using anti-TM5/TM30nm antiserum. In addition, the cellular localization of this protein differed between 3Y1 cells and tumorigenic ones. These findings suggest that TM5/TM30nm is involved in malignant transformation of rat fibroblastic cells.

PMID:
9222299
DOI:
10.1007/bf01438309
[Indexed for MEDLINE]

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