PURPOSE Biochemotherapy can achieve high response rates in advanced melanoma, but the factors that influence regression and survival remain unknown. The present exploratory study tested the hypothesis that cytokine gene polymorphisms predict clinical outcome in stage IV melanoma patients treated with biochemotherapy. EXPERIMENTAL DESIGN Ninety patients with stage IV melanoma were treated with...

Polymorphisms of DNA repair genes, X-ray repair cross-complementing group 1 (XRCC1) might contribute to individual susceptibility to different types of cancers. We analyzed the relationship between XRCC1 polymorphisms and the risk of papillary thyroid carcinoma in a Korean sample. A hospital-based case-control study was performed in 111 papillary thyroid carcinoma patients and 100 normal contro...

BACKGROUND Single nucleotide polymorphisms (SNPs) in a DNA-repair gene, X-Ray repair cross complementing group 1 (XRCC1), have been associated with the survival of patients with breast cancer. We investigated the predictive value of XRCC1 SNP (rs25487) in patients with early breast cancer. PATIENTS AND METHODS The XRCC1 rs25487 genotypes of 411 Finnish patients with breast cancer were analyze...

Fanconi anemia (FA) is a rare human genetic disorder characterized by developmental defects, bone marrow failure and cancer predisposition, primarily due to a deficiency in the repair of DNA interstrand crosslinks (ICLs). ICL repair through the FA DNA repair pathway is a complicated multi-step process, involving at least 19 FANC proteins and coordination of multiple DNA repair activities, inclu...

The ERCC1-XPF complex is a structure-specific endonuclease essential for the repair of DNA damage by the nucleotide excision repair pathway. It is also involved in other key cellular processes, including DNA interstrand crosslink (ICL) repair and DNA double-strand break (DSB) repair. New evidence has recently emerged, increasing our understanding of its requirement in these additional roles. In...

DNA interstrand crosslinks (ICLs) present formidable blocks to DNA metabolic processes and must be repaired for cell survival. ICLs are induced in DNA by intercalating compounds such as the widely used therapeutic agent psoralen. In bacteria, both nucleotide excision repair (NER) and homologous recombination are required for the repair of ICLs. The processing of ICLs in mammalian cells is not c...

X-ray repair cross-complementing gene I protein (XRCC1) in complex with DNA polymerase , DNA ligase III, and poly(ADP-ribose) polymerase is important in the base excision repair process. Previously, we isolated camptothecin (CPT)-resistant cell lines (KB100 and KB300) from the human epidermoid carcinoma cell line KB by exposure to CPT. From these CPT-resistant cell lines, their revertants (KB10...

BACKGROUND The Non-homologous end-joining repair gene XRCC6/Ku70 plays an important role in the repair of DNA double-strand breaks (DSBs), and has been found to be involved in the carcinogenesis of many types of cancers including oral, prostate, breast and bladder cancer. However, the contribution of XRCC6 to childhood leukemia has yet to be studied. In the present study, we investigated the as...

Recently, some reports investigated the association between X-ray Repair Cross-Complementing group 3 (XRCC3) and cervical cancer risk. However, the results were inconclusive. The meta-analysis, thus, assessed whether XRCC3 T241M polymorphism was associated with cervical cancer risk. Odds Ratios (ORs) with 95% Confidence Intervals (CIs) were calculated. Five case-control studies with a total of ...

X-ray repair cross-complementing gene I protein (XRCC1) in complex with DNA polymerase beta, DNA ligase III, and poly(ADP-ribose) polymerase is important in the base excision repair process. Previously, we isolated camptothecin (CPT)-resistant cell lines (KB100 and KB300) from the human epidermoid carcinoma cell line KB by exposure to CPT. From these CPT-resistant cell lines, their revertants (...