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Increased UV resistance of a xeroderma pigmentosum revertant cell line is correlated with selective repair of the transcribed strand of an expressed gene

Journal Article · · Molecular and Cellular Biology; (United States)
DOI:https://doi.org/10.1128/MCB.13.2.970· OSTI ID:6432543
;  [1]
  1. Stanford Univ., CA (United States)
People that suffer from xeroderma pigmentosum (XP) are sun sensitive and experience elevated incidences of cancer, particularly skin cancers on sun-light exposed parts of their bodies. Cultured cells from XP patients are found to be subtantially more sensitive to lethal and mutagenic effects of ultraviolet (UV) radiation than are cells from unaffected individuals. Using the cells from XP individuals, researchers study the roles that cyclobutane pyrimidine dimers (CPDs) and 6-4 photoproducts play in UV resistance. The results demonstrate that overall repair measurements can be misleading, and they support the hypothesis that removal of CPDs form the transcribed strands of expressed genes is essential for UV resistance. 36 refs., 5 figs., 1 tab.
OSTI ID:
6432543
Journal Information:
Molecular and Cellular Biology; (United States), Journal Name: Molecular and Cellular Biology; (United States) Vol. 13:2; ISSN 0270-7306; ISSN MCEBD4
Country of Publication:
United States
Language:
English