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Open AccessJournal ArticleDOI

Isolation and characterization of revertant cell lines. VI. Susceptibility of revertants to retransformation by simian virus 40 and murine sarcoma virus.

Arthur Vogel, +1 more
- 01 Dec 1974 - 
- Vol. 14, Iss: 6, pp 1404-1410
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TLDR
The susceptibility of two classes of revertants of Simian virus 40 (SV40)-transformed 3T3 cells to retransformation by SV40 or murine sarcoma virus (MSV) was studied.
Abstract
The susceptibility of two classes of revertants of Simian virus 40 (SV40)-transformed 3T3 cells to retransformation by SV40 or murine sarcoma virus (MSV) was studied. Both serum-sensitive and density-sensitive revertants are not retransformable by SV40. MSV can transform both types of revertants. The MSV-transformed revertants grow to high cell densities and form colonies when suspended in semi-solid methylcellulose medium, but are unable to grow in 1% calf serum. The MSV-transformed revertants produce infectious MSV and murine leukemia virus and possess the same number of chromosomes as the untransformed revertants.

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Book ChapterDOI

Cell Transformation by RNA Tumor Viruses

TL;DR: The establishment of an assay system for Rous sarcoma virus (RSV) in tissue culture cells (Temin and Rubin, 1958) eventually led to an era of quantitative studies on the mechanism of cellular alteration by viruses.
Book ChapterDOI

The transformation of cell growth and transmogrification of DNA synthesis by simian virus 40.

TL;DR: The hypothesis is that transformation by SV40 unlike PyV is largely explicable in terms of the ability of the 90K T-antigen to initiate DNA synthesis, which can propel the cell into rounds of replication beyond those exhibited by non-transformed cells in the same conditions.
Journal ArticleDOI

Revertants of v-fos-transformed fibroblasts have mutations in cellular genes essential for transformation by other oncogenes

TL;DR: The results suggest that the class I revertants sustained mutations in one or more cellular genes essential for transformation by some, but not all, oncogenes, and suggest the existence of common biochemical pathways for transformation.
Journal ArticleDOI

Transforming genes and gene products of polyoma and SV40.

TL;DR: The small DNA-containing viruses, SV40 and polyoma, transform cells in vitro and induce tumors in vivo and the genetic and biochemical studies defining the sequences important for transformation will be reviewed.
References
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Journal ArticleDOI

Quantitative studies of the growth of mouse embryo cells in culture and their development into established lines

TL;DR: Disaggregated mouse embryo cells, grown in monolayers, underwent a progressive decline in growth rate upon successive transfer, the rapidity of the decline depending on the inoculation density, but nearly all cultures developed into established lines within 3 months of culture.
Journal ArticleDOI

"Contact inhibition" of cell division in 3T3 cells.

TL;DR: It is found that the characteristic "contact-inhibited" cell density observed for 3T3 cells is a fortuitous result of growing the cells in a medium that contains 10 per cent calf serum, and that an insulin-like factor in serum is required for cell divison by cultured chick cells.
Journal ArticleDOI

Topoinhibition and serum requirement of transformed and untransformed cells.

TL;DR: The multiplication of tissue culture cells is controlled by several different physiological characteristics, the quantities of which can be measured and transformed cells are characterized by some of these physiological parameters.
Journal ArticleDOI

Growth control in cultured cells: selection of sublines with increased sensitivity to contact inhibition and decreased tumor-producing ability.

TL;DR: As growing cultures of mammalian cells reach a high density, their growth rate decreases and in some cases a substantially nondividing population may result, this arrest of growth requires cell contact, though soluble substances are also involved.
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