Stimulation of growth rate of chondrocytes by Rous sarcoma virus is not coordinated with other expressions of the src gene phenotype.

Abstract:

:Infection and transformation of chondrocytes by Rous sarcoma viruses (RSVs) (Schmidt-Ruppin, Prague) stimulated the rate of cell growth. In contrast, several transformation-defective (td) mutants (tdPRA, tdNY105, tdNY106, tdNY107, and tdNY108) retaining various sizes of the src gene did not stimulate cell growth, indicating that the stimulation of growth of chondrocytes is due to the function of the src gene. With the use of various T (transformation)-class temperature-sensitive (ts) mutants of RSV, growth stimulation of chondrocytes by the src gene was examined. It was found that there are two types of T-class ts mutants with regard to the stimulatory effect on the growth of chondrocytes. One type (tsNY68) stimulates cell growth at both permissive (36 degrees C) and nonpermissive (41.5 degrees C) temperature, as does the wild type of RSV. Another type (ts GI201 [clone 9]) stimulates cell growth only at the permissive temperature. Chondrocytes infected with either of these two types of T-class ts mutants showed ts properties in other transformation markers, such as uptake of 2-deoxy-D-glucose, change of cell morphology, and focus formation. These data indicate that the effect of the src gene on cell growth does not occur coordinately with other transformation markers.

journal_name

J Virol

journal_title

Journal of virology

authors

Tanaka A,Parker C,Kaji A

doi

10.1128/JVI.35.2.531-541.1980

subject

Has Abstract

pub_date

1980-08-01 00:00:00

pages

531-41

issue

2

eissn

0022-538X

issn

1098-5514

journal_volume

35

pub_type

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