Document Detail

Isolation and characterization of revertant cell lines. VII. DNA synthesis and mitotic rate of serum-sensitive revertants in non-permissive growth conditions.
MedLine Citation:
PMID:  162909     Owner:  NLM     Status:  MEDLINE    
The ability to synthesize DNA and enter mitosis was studied in Balb/c and Swiss 3T3 cells, SV40 and MSV-transformed 3T3 cells and revertants of these transformed cells in cultures of different serum concentrations and cell densities. Three ways were found by which cells were able to maintain a constant cell number in non-permissive growth conditions: cessation of DNA synthesis, synthesis of DNA coupled with failure to enter mitosis, and the slow traverse of the cell cycle coupled with cell shedding. Growth control of the revertant of an MSV-transformed Balb/3T3 cell most closely resembled that of Balb or Swiss 3T3. This line did not grow in 1% serum and did not synthesize DNA in either non-permissive condition. Serum-sensitive revertants of SV40-transformed 3T3 cells are also unable to grow in 1% serum and also do not grow beyond confluence in 10% serum, but these cells differ from 3T3 in the manner in which this growth arrest is accomplished. In 1% serum, revertants synthesize DNA but do not enter mitosis. At confluence in 10% serum, they slowly traverse the cell cycle, with dividing cells replacing cells that are shed into the medium.
A Vogel; R Pollack
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of cellular physiology     Volume:  85     ISSN:  0021-9541     ISO Abbreviation:  J. Cell. Physiol.     Publication Date:  1975 Feb 
Date Detail:
Created Date:  1975-04-14     Completed Date:  1975-04-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0050222     Medline TA:  J Cell Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  151-62     Citation Subset:  IM    
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MeSH Terms
Cell Line*
Cell Transformation, Neoplastic*
Contact Inhibition
Culture Media
DNA / biosynthesis*
DNA, Neoplasm / biosynthesis*
Mice, Inbred BALB C
Simian virus 40
Thymidine / metabolism
Reg. No./Substance:
0/Culture Media; 0/DNA, Neoplasm; 10028-17-8/Tritium; 50-89-5/Thymidine; 9007-49-2/DNA

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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