Hepatocyte growth factor reverses the TGF-beta-induced growth inhibition of CCL-64 cells. A novel bioassay for HGF and implications for the TGF-beta bioassay.

Abstract:

:The influence of human hepatocyte growth factor (HGF) on the transforming growth factor beta (TGF-beta) bioassay CCL-64 was examined. HGF induced proliferation of the CCL-64 cells and potently counteracted TGF-beta-induced growth inhibition. HGF was not inactivated by transient acidification to pH 2, a commonly used procedure to activate latent TGF-beta. HGF was a stronger mitogen for the mink lung cells than epidermal growth factor (EGF), a known stimulator of CCL-64 cell growth. Costimulation of the cells by these two cytokines resulted in an additive effect on proliferation. In complex biological fluids containing large amounts of HGF, the TGF-beta concentration can be underestimated when determined by the CCL-64 assay. When a fixed amount of TGF-beta is added, the CCL-64 cells can be used as a reliable bioassay for HGF with a sensitivity of about 1 ng/ml.

journal_name

J Immunol Methods

authors

Börset M,Waage A,Sundan A

doi

10.1016/0022-1759(95)00228-6

subject

Has Abstract

pub_date

1996-01-16 00:00:00

pages

59-64

issue

1

eissn

0022-1759

issn

1872-7905

pii

0022175995002286

journal_volume

189

pub_type

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