Abstract
Focus-forming virus can be induced by chemicals from virus-negative clonal lines of cells transformed by murine sarcoma virus. The viruses activated from such nonproducer cells have the host range and serologic properties of endogenous helper viruses of the cells rather than those of the sarcoma virus used to transform them. The evidence indicates that murine sarcoma virus-transformed nonproducer cells of two species contain the genetic information for both murine sarcoma and helper virus production in an unexpressed form.
Keywords: helper virus, murine leukemia virus, murine sarcoma virus, focus-forming units
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Selected References
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- Aaronson S. A., Jainchill J. L., Todaro G. J. Murine sarcoma virus transformation of BALB-3T3 cells: lack of dependence on murine leukemia virus. Proc Natl Acad Sci U S A. 1970 Aug;66(4):1236–1243. doi: 10.1073/pnas.66.4.1236. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Aaronson S. A., Rowe S. P. Nonproducer clones of murine sarcoma virus transformed BALB-3T3 cells. Virology. 1970 Sep;42(1):9–19. doi: 10.1016/0042-6822(70)90233-3. [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]
- Aaronson S. A., Todaro G. J., Scolnick E. M. Induction of murine C-type viruses from clonal lines of virus-free BALB-3T3 cells. Science. 1971 Oct 8;174(4005):157–159. doi: 10.1126/science.174.4005.157. [DOI] [PubMed] [Google Scholar]
- Aaronson S. A., Weaver C. A. Characterization of murine sarcoma virus (Kirsten) transformation of mouse and human cells. J Gen Virol. 1971 Nov;13(2):245–252. doi: 10.1099/0022-1317-13-2-245. [DOI] [PubMed] [Google Scholar]
- Hartley J. W., Rowe W. P., Capps W. I., Huebner R. J. Complement fixation and tissue culture assays for mouse leukemia viruses. Proc Natl Acad Sci U S A. 1965 May;53(5):931–938. doi: 10.1073/pnas.53.5.931. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hartley J. W., Rowe W. P., Huebner R. J. Host-range restrictions of murine leukemia viruses in mouse embryo cell cultures. J Virol. 1970 Feb;5(2):221–225. doi: 10.1128/jvi.5.2.221-225.1970. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Huebner R. J., Hartley J. W., Rowe W. P., Lane W. T., Capps W. I. Rescue of the defective genome of Moloney sarcoma virus from a noninfectious hamster tumor and the production of pseudotype sarcoma viruses with various murine leukemia viruses. Proc Natl Acad Sci U S A. 1966 Oct;56(4):1164–1169. doi: 10.1073/pnas.56.4.1164. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Huu Duc-Nguyen, Rosenblum E. N., Zeigel R. F. Persistent infection of a rat kidney cell line with Rauscher murine leukemia virus. J Bacteriol. 1966 Oct;92(4):1133–1140. doi: 10.1128/jb.92.4.1133-1140.1966. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jainchill J. L., Aaronson S. A., Todaro G. J. Murine sarcoma and leukemia viruses: assay using clonal lines of contact-inhibited mouse cells. J Virol. 1969 Nov;4(5):549–553. doi: 10.1128/jvi.4.5.549-553.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lowy D. R., Rowe W. P., Teich N., Hartley J. W. Murine leukemia virus: high-frequency activation in vitro by 5-iododeoxyuridine and 5-bromodeoxyuridine. Science. 1971 Oct 8;174(4005):155–156. doi: 10.1126/science.174.4005.155. [DOI] [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]