Augmented excretion of procathepsin L of a fos-transferred highly metastatic rat cell line

Shun'ichiro Taniguchi, Yukio Nishimura, Takeshi Takahashi, Tsuneo Baba, Keitaro Kato

Research output: Contribution to journalArticle

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Abstract

We previously reported that v-fos transfer to a src-transformed rat 3Y1 cell line (SR-3Y1-2) enhanced lung metastasis accompanied with an increase in invasiveness. When analyzing factors relating to the high invasiveness, with special reference to typical lysosomal proteases (cathepsins), involving degradation of stroma, we found that the excretion of procathepsin L was significantly larger in the fos-transferred highly metastatic cell line (fos-SR-3Y1-202) than that in the recipient cell lines. The cathepsin D-induced enzyme activity of the excreted procathepsin L in fos-SR-3Y1-202 was about 4 and 13 fold that of SR-3Y1-2 and 3Y1, respectively. The increase in the excretion of procathepsin L from fos-SR-3Y1-202 may play a role in the high invasiveness induced by transfer with the v-fos oncogene.

Original languageEnglish
Pages (from-to)520-526
Number of pages7
JournalBiochemical and Biophysical Research Communications
Volume168
Issue number2
DOIs
Publication statusPublished - Apr 30 1990

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Rats
Cells
4 alpha-glucanotransferase
Cell Line
fos Genes
Cathepsins
Cathepsin D
Enzyme activity
Peptide Hydrolases
Neoplasm Metastasis
Degradation
Lung
mifobate
procathepsin L

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

Augmented excretion of procathepsin L of a fos-transferred highly metastatic rat cell line. / Taniguchi, Shun'ichiro; Nishimura, Yukio; Takahashi, Takeshi; Baba, Tsuneo; Kato, Keitaro.

In: Biochemical and Biophysical Research Communications, Vol. 168, No. 2, 30.04.1990, p. 520-526.

Research output: Contribution to journalArticle

Taniguchi, Shun'ichiro ; Nishimura, Yukio ; Takahashi, Takeshi ; Baba, Tsuneo ; Kato, Keitaro. / Augmented excretion of procathepsin L of a fos-transferred highly metastatic rat cell line. In: Biochemical and Biophysical Research Communications. 1990 ; Vol. 168, No. 2. pp. 520-526.
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