xeroderma pigmentosum/hypoxia

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Oroxylin A reverses hypoxia-induced cisplatin resistance through inhibiting HIF-1α mediated XPC transcription

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Hypoxia is a key concern during the treatment of non-small cell lung cancer (NSCLC), and hypoxia-inducible factor 1 alpha (HIF-1α) has been associated with increased tumor resistance to therapeutic modalities such as cisplatin. Compensatory activation of nucleotide excision repair (NER) pathway is

The action of AF 2 on cultured hamster and human cells under aerobic and hypoxic conditions.

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AF 2 (2-(2-furyl)-3-(5-nitro-furyl)acrylamide) was toxic to Chinese hamster V 79 cells and normal human fibroblasts in aerobic media. However, the toxicity of the drug was increased many times by hypoxia. Similarly, the frequency of AF 2-induced azaguanine- and ouabain-resistant mutants of V 79

Congenital disorders sharing oxidative stress and cancer proneness as phenotypic hallmarks: prospects for joint research in pharmacology.

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In spite of very distinct genotypic assets, a number of congenital conditions include oxidative stress as a phenotypic hallmark. These disorders include Fanconi's anaemia, ataxia telangiectasia, xeroderma pigmentosum and Bloom's syndrome, as well as two frequent congenital conditions: Down's

DDB2 suppresses epithelial-to-mesenchymal transition in colon cancer.

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Colon cancer is one of the deadliest cancers worldwide because of its metastasis to other essential organs. Metastasis of colon cancer involves a complex set of events, including epithelial-to-mesenchymal transition (EMT) that increases invasiveness of the tumor cells. Here, we show that the

Identification and characterization of X-ray-induced proteins in human cells.

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In order to investigate the biochemical events involved in potentially lethal DNA damage repair (PLDR), we have identified a pleiotropic protein expression response that is activated upon X-irradiation of confluence-arrested human malignant melanoma (U1-Mel) cells. Plateau-phase U1-Mel cells were

Sensitivity of nucleotide excision repair-deficient human cells to ionizing radiation and cyclophosphamide.

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Nucleotide excision repair (NER)-deficient rodent and human cells (such as those derived from patients with xeroderma pigmentosum, XP) are hypersensitive to UV light. Some of these cell lines, specifically certain rodent mutants with severe defects in the ERCC1 and XPF genes, are dramatically

HIF1α regulated expression of XPA contributes to cisplatin resistance in lung cancer.

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Factors regulating nucleotide excision repair probably contribute to the heterogenous response of advanced stage lung cancer patients to drugs such as cisplatin. Studies to identify the genes in the nucleotide excision repair pathway most closely associated with resistance to cisplatin have not been

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