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Chinese Journal of Clinical Laboratory Management(Electronic Edition) ›› 2020, Vol. 08 ›› Issue (01): 6-12. doi: 10.3877/cma.j.issn.2095-5820.2020.01.002

Special Issue:

• Clinical Research • Previous Articles     Next Articles

Prognostic value of DNA repair genes in non-small cell lung squamous carcinoma patients received platinum-based chemotherapy

Kejie Xie1,(), Honger He1, Xingmu Wang1, Meidan Wang1, Dongdong Wu1   

  1. 1. Shaoxing People’s Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing Zhejiang 312000, China
  • Received:2019-06-18 Online:2020-02-28 Published:2020-02-28
  • Contact: Kejie Xie
  • About author:
    Corresponding author: Xie Kejie, Email:

Abstract:

Objective

To explore the prognostic value of DNA repair genes in patients with different pathological types of non-small cell lung cancer (NSCLC) and were all received platinum-based chemotherapy.

Methods

Immunohistochemical technique was used to measure the expression levels of the following DNA repair genes: poly ADP-ribose polymerase gene 1 (PARP1), excision and repair of cross-complementing gene 1 (ERCC1), mismatch repair and homology type 2 gene (MSH2), breast cancer susceptibility gene 1 (BRCA1) in paraffin embedded lesions of 121 NSCLC patients received platinum-based chemotherapy. The relationship between the expression levels of DNA repair genes and clinicopathological features in NSCLC patients was analyzed. The prognostic value of DNA repair gene expression level in NSCLC patients with different pathological types and whether it is an independent prognostic index were determined by survival analysis.

Results

The expression of ERCC1, PARP1, BRCA1 and MSH2 in NSCLC was not correlated with gender, age, smoking index and clinical TNM staging (P>0.05). ERCC1, RARP1, BRCA1, and MSH2 were not independent prognostic factors in NSCLS adenocarcinoma patients (P>0.05). But ERCC1 and PARP1 were independent prognostic factors in NSCLS squamous patients (P=0.019, 0.031).

Conclusion

ERCC1 and PARP1 are independent prognostic markers of NSCLC SCC patients received platinum-based chemotherapy.

Key words: DNA repair gene, Non-small cell lung cancer, Chemotherapy, Squamous cell carcinoma, Prognosis

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