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Polymorphism in ASCL1 target gene DDC is associated with clinical outcomes of small cell lung ....
  • 작성일2021-02-22
  • 최종수정일2021-02-22
  • 담당부서연구기획과
  • 연락처043-719-8033
  • 57

Thoracic cance, 2020.11(1), 19-28, DOI: https://doi.org/10.1111/1759-7714.13212


Polymorphism in ASCL1 target gene DDC is associated with clinical outcomes of small cell lung cancer patients

Kim J, Lee S;Choi J;Do S;Lee J;Hong M;Kang HG;Lee W;Shin K;Jeong J;Choi S;Lee Y;Seo H;Yoo S;Lee J;Cha S;Kim C;Park J


Abstract

    Background: Achaete-scute homolog 1 (ASCL1) is a basic helix-loop-helix tranion factor and is essential in the differentiation of neuroendocrine cells and neural tissues. ASCL1 is frequently overexpressed in small cell lung cancer (SCLC) and plays a crucial role in the pathogenesis of SCLC.

    Methods: This study was conducted to identify the association between single nucleotide polymorphisms (SNPs) in ASCL1 target genes and clinical outcomes of patients with SCLC after chemotherapy. A total of 261 patients diagnosed with SCLC were enrolled in this study. The association between 103 SNPs in 58 ASCL1 target genes and the response to chemotherapy and survival of patients with SCLC were analyzed.

    Results: Among the 103 SNPs, 10 SNPs were significantly associated with the response to chemotherapy, and 19 SNPs were associated with OS in multivariate analyses. Among these, Dopa Decarboxylase (DDC) rs12666409A>T was significantly associated with both a worse response to chemotherapy and worse OS (adjusted odds ratio [aOR] = 0.40, 95% CI = 0.18–0.90, P = 0.03; adjusted hazard ratio [aHR] = 1.52, 95% CI = 1.10–2.10, P = 0.01, respectively, under a dominant model). In a stage-stratified analysis, the association was significant only in the extensive disease subgroup (aOR = 0.19, 95% CI = 0.06–0.60, P = 0.01; aHR = 1.73, 95% CI = 1.16–2.56, P = 0.01, respectively, under a dominant model), but not in the limited disease subgroup.

    Conclusion: The results of our study suggest that DDC rs12666409A>T may be useful markers for predicting the clinical outcomes of patients with SCLC undergoing chemotherapy.



  • 본 연구는 질병관리본부 연구개발과제연구비를 지원받아 수행되었습니다.
  • This research was supported by a fund by Research of Korea Centers for Disease Control and Prevention.


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