RGD Reference Report - Association between polymorphisms in DNA repair genes and survival of non-smoking female patients with lung adenocarcinoma. - Rat Genome Database

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Association between polymorphisms in DNA repair genes and survival of non-smoking female patients with lung adenocarcinoma.

Authors: Yin, Zhihua  Zhou, Baosen  He, Qincheng  Li, Mingchuan  Guan, Peng  Li, Xuelian  Cui, Zeshi  Xue, Xiaoxia  Su, Meng  Ma, Rui  Bai, Weijun  Xia, Shuyue  Jiang, Yanduo  Xu, Shun  Lv, Yi  Li, Xun 
Citation: Yin Z, etal., BMC Cancer. 2009 Dec 15;9:439. doi: 10.1186/1471-2407-9-439.
RGD ID: 151347422
Pubmed: PMID:20003463   (View Abstract at PubMed)
PMCID: PMC2803496   (View Article at PubMed Central)
DOI: DOI:10.1186/1471-2407-9-439   (Journal Full-text)


BACKGROUND: Excision repair cross-complementing group 1 (ERCC1) and group 2 (ERCC2), and X-ray repair cross-complementing group 1 (XRCC1) proteins play important roles in the repair of DNA damage and adducts. Single nucleotide polymorphisms (SNPs) of DNA repair genes are suspected to influence treatment effect and survival of cancer patients. This study aimed to investigate the relationship between polymorphisms in ERCC2, ERCC1 and XRCC1 genes and survival of non-smoking female patients with lung adenocarcinoma.
METHODS: We used polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method to evaluate SNPs in ERCC2, ERCC1 and XRCC1 genes among 257 patients.
RESULTS: The overall median survival time (MST) was 13.07 months. Increasing numbers of either ERCC1 118 or XRCC1 399 variant alleles were associated with shorter survival of non-smoking female lung adenocarcinoma patients (Log-rank P < 0.001). The adjusted hazard ratios (HRs) for individuals with CT or TT genotype at ERCC1 Asn118Asn were 1.48 and 2.67 compared with those with CC genotype. For polymorphism of XRCC1 399, the HRs were 1.28 and 2.68 for GA and AA genotype. When variant alleles across both polymorphisms were combined to analysis, the increasing number of variant alleles was associated with decreasing overall survival. Using the stepwise Cox regression analysis, we found that the polymorphisms in ERCC1 and XRCC1, tumor stage and chemotherapy or radiotherapy status independently predicted overall survival of non-smoking female patients with lung adenocarcinoma.
CONCLUSIONS: Genetic polymorphisms in ERCC1 and XRCC1 genes might be prognostic factors in non-smoking female patients with lung adenocarcinoma.



RGD Manual Disease Annotations    Click to see Annotation Detail View
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
XRCC1Humanlung adenocarcinoma severityIAGP DNA:missense mutation:exon 10: p.R399Q (rs25487) (human)RGD 
Xrcc1Ratlung adenocarcinoma severityISOXRCC1 (Homo sapiens)DNA:missense mutation:exon 10: p.R399Q (rs25487) (human)RGD 
Xrcc1Mouselung adenocarcinoma severityISOXRCC1 (Homo sapiens)DNA:missense mutation:exon 10: p.R399Q (rs25487) (human)RGD 

Phenotype Annotations    Click to see Annotation Detail View

Manual Human Phenotype Annotations - RGD

Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
XRCC1HumanNeoplasm of the lung severityIAGP DNA:missense mutation:exon 10: p.R399Q (rs25487) (human)RGD 
Objects Annotated

Genes (Rattus norvegicus)
Xrcc1  (X-ray repair cross complementing 1)

Genes (Mus musculus)
Xrcc1  (X-ray repair complementing defective repair in Chinese hamster cells 1)

Genes (Homo sapiens)
XRCC1  (X-ray repair cross complementing 1)


Additional Information