Abstract
We have described a cell line, UC1-B, derived spontaneously from BALB/3T3 mouse embryo cells, which, unlike the standard BALB/3T3, are morphologically transformed and produce bizarre viral forms in response to murine leukemia virus. Although UC1-B and BALB/3T3 are morphologically similar, and both form contact-inhibited monolayers at confluence, the UC1-B cells are partially transformed because: they grow to a slightly higher saturation density than 3T3 cells, they grow in medium lacking serum growth factors, and they produce tumors in mice. Another clone, 12A-3, derived from BALB/3T3, also transforms and produces bizarre viral forms after infection with murine leukemia virus. Unlike UC1-B cells, the 12A3-8 cells are identical in growth properties to BALB/3T3; therefore, a partially altered morphology is not required for the induction of transformation by murine leukemia virus.
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- Aaronson S. A., Todaro G. J. Basis for the acquisition of malignant potential by mouse cells cultivated in vitro. Science. 1968 Nov 29;162(3857):1024–1026. doi: 10.1126/science.162.3857.1024. [DOI] [PubMed] [Google Scholar]
- Aaronson S. A., Todaro G. J. Development of 3T3-like lines from Balb-c mouse embryo cultures: transformation susceptibility to SV40. J Cell Physiol. 1968 Oct;72(2):141–148. doi: 10.1002/jcp.1040720208. [DOI] [PubMed] [Google Scholar]
- Chan J. C., Vera N., East J. L., Hiraki S., Dmochowski L. Lack of syncytium formation by a type C virus-producing XC cell line in the mixed culture cytopathogenicity test. Cancer Res. 1974 Mar;34(3):468–473. [PubMed] [Google Scholar]
- Field A. K., Fong J. Mouse salivary gland virus plaque assay on a stable line of mouse embryo cells. J Bacteriol. 1964 May;87(5):1238–1239. doi: 10.1128/jb.87.5.1238-1239.1964. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gelb L. D., Kohne D. E., Martin M. A. Quantitation of Simian virus 40 sequences in African green monkey, mouse and virus-transformed cell genomes. J Mol Biol. 1971 Apr 14;57(1):129–145. doi: 10.1016/0022-2836(71)90123-9. [DOI] [PubMed] [Google Scholar]
- Hackett A. J., Sylvester S. S. Cell line derived from Balb-3T3 that is transformed by murine leukaemia virus: a focus assay for leukaemia virus. Nat New Biol. 1972 Oct 11;239(93):164–166. doi: 10.1038/newbio239164a0. [DOI] [PubMed] [Google Scholar]
- Jainchill J. L., Todaro G. J. Stimulation of cell growth in vitro by serum with and without growth factor. Relation to contact inhibition and viral transformation. Exp Cell Res. 1970 Jan;59(1):137–146. doi: 10.1016/0014-4827(70)90632-4. [DOI] [PubMed] [Google Scholar]
- Pollack R. E., Green H., Todaro G. J. Growth control in cultured cells: selection of sublines with increased sensitivity to contact inhibition and decreased tumor-producing ability. Proc Natl Acad Sci U S A. 1968 May;60(1):126–133. doi: 10.1073/pnas.60.1.126. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pollack R. E., Teebor G. W. Relationship of contact inhibition to tumor transplantability, morphology, and growth rate. Cancer Res. 1969 Oct;29(10):1770–1772. [PubMed] [Google Scholar]
- Rowe W. P., Pugh W. E., Hartley J. W. Plaque assay techniques for murine leukemia viruses. Virology. 1970 Dec;42(4):1136–1139. doi: 10.1016/0042-6822(70)90362-4. [DOI] [PubMed] [Google Scholar]
- Scher C. D., Nelson-Rees W. A. Direct isolation and characterization of "flat" SV40-transformed cells. Nat New Biol. 1971 Oct 27;233(43):263–265. doi: 10.1038/newbio233263a0. [DOI] [PubMed] [Google Scholar]
- Smith H. S., Gelb L. D., Martin M. A. Detection and quantitation of simian virus 40 genetic material in abortively transformed BALB-3T3 clones (mice-diploid cells-virus equivalents). Proc Natl Acad Sci U S A. 1972 Jan;69(1):152–156. doi: 10.1073/pnas.69.1.152. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Smith H. S., Hiller A. J., Kingsbury E. W., Roberts-Dory C. Cell surface properties and the expression of SV40-induced transformation. Nat New Biol. 1973 Sep 19;245(142):67–69. doi: 10.1038/newbio245067a0. [DOI] [PubMed] [Google Scholar]
- Smith H. S., Scher C. D., Todaro G. J. Induction of cell division in medium lacking serum growth factor by SV40. Virology. 1971 May;44(2):359–370. doi: 10.1016/0042-6822(71)90267-4. [DOI] [PubMed] [Google Scholar]
- Wright P. W., Smith H. S., McCoy J. Tumorigenicity and antigenicity of mouse cells infected with Simian virus 40. I. Relationship of growth in vitro and in vivo in immunosuppressed and immunocompetent recipients. J Natl Cancer Inst. 1973 Sep;51(3):951–959. doi: 10.1093/jnci/51.3.951. [DOI] [PubMed] [Google Scholar]