Acta Pharmaceutica Sinica B (Mar 2022)

Genome-wide analysis identify novel germline genetic variations in ADCY1 influencing platinum-based chemotherapy response in non-small cell lung cancer

  • Chenxue Mao,
  • Juan Chen,
  • Ting Zou,
  • Yuankang Zhou,
  • Junyan Liu,
  • Xi Li,
  • Xiangping Li,
  • Min Li,
  • Pinhua Pan,
  • Wei Zhuo,
  • Yang Gao,
  • Shuo Hu,
  • Desheng Xiao,
  • Lin Wu,
  • Zhan Wang,
  • Heng Xu,
  • Wen Yang,
  • Yingjie Xu,
  • Haihua Xiao,
  • Kazuhiko Hanada,
  • Wei Zhang,
  • Honghao Zhou,
  • Jiye Yin,
  • Zhaoqian Liu

Journal volume & issue
Vol. 12, no. 3
pp. 1514 – 1522

Abstract

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To explore the pharmacogenomic markers that affect the platinum-based chemotherapy response in non-small-cell lung carcinoma (NSCLC), we performed a two-cohort of genome-wide association studies (GWAS), including 34 for WES-based and 433 for microarray-based analyses, as well as two independent validation cohorts. After integrating the results of two studies, the genetic variations related to the platinum-based chemotherapy response were further determined by fine-mapping in 838 samples, and their potential functional impact were investigated by eQTL analysis and in vitro cell experiments. We found that a total of 68 variations were significant at P < 1 × 10−3 in cohort 1 discovery stage, of which 3 SNPs were verified in 262 independent samples. A total of 541 SNPs were significant at P < 1 × 10−4 in cohort 2 discovery stage, of which 8 SNPs were verified in 347 independent samples. Comparing the validated SNPs in two GWAS, ADCY1 gene was verified in both independent studies. The results of fine-mapping showed that the G allele carriers of ADCY1 rs2280496 and C allele carriers of rs189178649 were more likely to be resistant to platinum-based chemotherapy. In conclusion, our study found that rs2280496 and rs189178649 in ADCY1 gene were associated the sensitivity of platinum-based chemotherapy in NSCLC patients.

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