© 2004 by Oxford University Press
© 2004 Oxford University Press
BRIEF COMMUNICATION |
Impaired Processing of DNA Photoproducts and Ultraviolet Hypermutability With Loss of p16INK4a or p19ARF
Affiliations of authors: Department of Dermatology, Boston University School of Medicine, Boston, MA (PSA, IV, TMR); Lineberger Cancer Center, University of North Carolina, Chapel Hill (NES); Department of Adult Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA (RADP)
Correspondence to: Thomas M. Rünger, Boston University School of Medicine, Department of Dermatology, 609 Albany St., Boston, MA 02118 (e-mail: truenger{at}bu.edu)
Reduced DNA repair has been linked to an increased risk of cutaneous malignant melanoma, but insights into the molecular mechanisms of that link are scarce. The INK4a/ARF (CDKN2a) locus, which codes for the p16INK4a and p19ARF proteins, is often mutated in sporadic and familial malignant melanoma, but it has not been directly associated with reduced DNA repair. We transfected unirradiated mouse fibroblast cells with UV-treated DNA to measure DNA repair in normal, p16INK4a mutant, p19ARF mutant, or double mutant mouse host cells. Loss of either p16INK4a or p19ARF reduced the ability of the cells to process UV-induced DNA damage, independent of cell cycle effects incurred by the loss. These results may further explain why INK4a/ARF mutations predispose to malignant melanoma, a UV-induced tumor.
This article has been cited by other articles:
![]() |
G. Yang, D. Curley, M. W. Bosenberg, and H. Tsao Loss of Xeroderma Pigmentosum C (Xpc) Enhances Melanoma Photocarcinogenesis in Ink4a-Arf-Deficient Mice Cancer Res., June 15, 2007; 67(12): 5649 - 5657. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Mounawar, A. Mukeria, F. Le Calvez, R. J. Hung, H. Renard, A. Cortot, C. Bollart, D. Zaridze, P. Brennan, P. Boffetta, et al. Patterns of EGFR, HER2, TP53, and KRAS Mutations of p14arf Expression in Non-Small Cell Lung Cancers in Relation to Smoking History Cancer Res., June 15, 2007; 67(12): 5667 - 5672. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. A. Fecher, S. D. Cummings, M. J. Keefe, and R. M. Alani Toward a Molecular Classification of Melanoma J. Clin. Oncol., April 20, 2007; 25(12): 1606 - 1620. [Abstract] [Full Text] [PDF] |
||||
![]() |
Z. A. Abdel-Malek, A. L. Kadekaro, R. J. Kavanagh, A. Todorovic, L. N. Koikov, J. C. McNulty, P. J. Jackson, G. L. Millhauser, S. Schwemberger, G. Babcock, et al. Melanoma prevention strategy based on using tetrapeptide {alpha}-MSH analogs that protect human melanocytes from UV-induced DNA damage and cytotoxicity FASEB J, July 1, 2006; 20(9): 1561 - 1563. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. Eymin, P. Claverie, C. Salon, C. Leduc, E. Col, E. Brambilla, S. Khochbin, and S. Gazzeri p14ARF Activates a Tip60-Dependent and p53-Independent ATM/ATR/CHK Pathway in Response to Genotoxic Stress. Mol. Cell. Biol., June 1, 2006; 26(11): 4339 - 4350. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. Hacker, H. K. Muller, N. Irwin, B. Gabrielli, D. Lincoln, S. Pavey, M. B. Powell, M. Malumbres, M. Barbacid, N. Hayward, et al. Spontaneous and UV Radiation-Induced Multiple Metastatic Melanomas in Cdk4R24C/R24C/TPras Mice. Cancer Res., March 15, 2006; 66(6): 2946 - 2952. [Abstract] [Full Text] [PDF] |
||||



