Collagenase activity in rabbit carcinoma: cell source and cell interactions.

Abstract:

:Fibroblast-like cells (F-cells) and epithelial-like (E-cells) derived from cultures of rabbit VX-2 carcinoma released collagenase in both active and latent forms in serum-free medium at a level higher than that of normal rabbit fibroblast cultures. The enhanced capacity of the F-cells to release the enzyme, however, continued only for a few passages and then decreased significantly to a low level similar to that of the normal fibroblasts. The enzyme-release by the E-cells continued for a few more passages at a relatively moderate level, higher than that of normal fibroblasts. The release of collagenase in cultures of F-cells was enhanced by the presence of E-cells in mixed cultures as well as by medium conditioned by the E-cells type. Addition of cytochalasin B at 2 micrograms/ml did not significantly effect the enzyme activity released in the cultures. Serum from tumor-bearing rabbits appeared to stimulate the release of enzyme activity in cultures of either cell type.

journal_name

Int J Cancer

authors

Dabbous MK,El-Torky M,Haney L,Brinkley SB,Sobhy N

doi

10.1002/ijc.2910310317

subject

Has Abstract

pub_date

1983-03-15 00:00:00

pages

357-64

issue

3

eissn

0020-7136

issn

1097-0215

journal_volume

31

pub_type

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