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. 1993 Dec;101(Suppl 5):55–58. doi: 10.1289/ehp.93101s555

Control of G1 arrest after DNA damage.

M B Kastan 1, S J Kuerbitz 1
PMCID: PMC1519427  PMID: 8013425

Abstract

The temporal relationship between DNA damage and DNA replication may be critical in determining whether the genetic changes necessary for cellular transformation occur after DNA damage. Recent characterization of the mechanisms responsible for alterations in cell-cycle progression after DNA damage in our laboratory have implicated the p53 (tumor suppressor) protein in the G1 arrest that occurs after certain types of DNA damage. In particular, we found that levels of p53 protein increased rapidly and transiently after nonlethal doses of gamma irradiation (XRT) in hematopoietic cells with wild-type, but not mutant, p53 genes. These changes in p53 protein levels were temporally linked to a transient G1 arrest in these cells. Hematopoietic cells with mutant or absent p53 genes did not exhibit this G1 arrest, through they continued to demonstrate a G2 arrest. We recently extended these observations of a tight correlation between the status of the endogenous p53 genes and this G1 arrest after XRT and this cell-cycle alteration after XRT was then established by transfecting cells lacking endogenous p53 genes with a wild-type gene and observing acquisition of the G1 arrest and by transfecting cells processing endogenous wild-type p53 genes with a mutant p53 gene and observing loss of the G1 arrest after XRT. These observations and their significance for our understanding of the mechanisms of DNA damage-induced cellular transformation are discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Baker S. J., Markowitz S., Fearon E. R., Willson J. K., Vogelstein B. Suppression of human colorectal carcinoma cell growth by wild-type p53. Science. 1990 Aug 24;249(4971):912–915. doi: 10.1126/science.2144057. [DOI] [PubMed] [Google Scholar]
  2. Cohen S. M., Ellwein L. B. Cell proliferation in carcinogenesis. Science. 1990 Aug 31;249(4972):1007–1011. doi: 10.1126/science.2204108. [DOI] [PubMed] [Google Scholar]
  3. Diller L., Kassel J., Nelson C. E., Gryka M. A., Litwak G., Gebhardt M., Bressac B., Ozturk M., Baker S. J., Vogelstein B. p53 functions as a cell cycle control protein in osteosarcomas. Mol Cell Biol. 1990 Nov;10(11):5772–5781. doi: 10.1128/mcb.10.11.5772. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Kastan M. B., Onyekwere O., Sidransky D., Vogelstein B., Craig R. W. Participation of p53 protein in the cellular response to DNA damage. Cancer Res. 1991 Dec 1;51(23 Pt 1):6304–6311. [PubMed] [Google Scholar]
  5. Kuerbitz S. J., Plunkett B. S., Walsh W. V., Kastan M. B. Wild-type p53 is a cell cycle checkpoint determinant following irradiation. Proc Natl Acad Sci U S A. 1992 Aug 15;89(16):7491–7495. doi: 10.1073/pnas.89.16.7491. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Lübbert M., Miller C. W., Kahan J., Koeffler H. P. Expression, methylation and chromatin structure of the p53 gene in untransformed and human T-cell leukemia virus type I-transformed human T-lymphocytes. Oncogene. 1989 May;4(5):643–651. [PubMed] [Google Scholar]
  7. Martinez J., Georgoff I., Martinez J., Levine A. J. Cellular localization and cell cycle regulation by a temperature-sensitive p53 protein. Genes Dev. 1991 Feb;5(2):151–159. doi: 10.1101/gad.5.2.151. [DOI] [PubMed] [Google Scholar]
  8. Mercer W. E., Shields M. T., Amin M., Sauve G. J., Appella E., Romano J. W., Ullrich S. J. Negative growth regulation in a glioblastoma tumor cell line that conditionally expresses human wild-type p53. Proc Natl Acad Sci U S A. 1990 Aug;87(16):6166–6170. doi: 10.1073/pnas.87.16.6166. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Rideout W. M., 3rd, Coetzee G. A., Olumi A. F., Jones P. A. 5-Methylcytosine as an endogenous mutagen in the human LDL receptor and p53 genes. Science. 1990 Sep 14;249(4974):1288–1290. doi: 10.1126/science.1697983. [DOI] [PubMed] [Google Scholar]
  10. Shaulsky G., Goldfinger N., Peled A., Rotter V. Involvement of wild-type p53 protein in the cell cycle requires nuclear localization. Cell Growth Differ. 1991 Dec;2(12):661–667. [PubMed] [Google Scholar]
  11. Weinert T. A., Hartwell L. H. Characterization of RAD9 of Saccharomyces cerevisiae and evidence that its function acts posttranslationally in cell cycle arrest after DNA damage. Mol Cell Biol. 1990 Dec;10(12):6554–6564. doi: 10.1128/mcb.10.12.6554. [DOI] [PMC free article] [PubMed] [Google Scholar]

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