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K. Shiraishi



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    OA10 - EGFR Mutations (ID 382)

    • Event: WCLC 2016
    • Type: Oral Session
    • Track: Biology/Pathology
    • Presentations: 1
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      OA10.02 - Association of Variations in HLA-Class II and Other Loci with Susceptibility to EGFR-Mutated Lung Adenocarcinoma (ID 4192)

      11:00 - 12:30  |  Author(s): K. Shiraishi

      • Abstract
      • Presentation
      • Slides

      Background:
      Lung adenocarcinoma (LADC) driven by somatic EGFR mutations is more prevalent in East Asians (30-50%) than in European/Americans (10-20%). Understanding the genetic factors underlying such LADC is required to elucidate disease etiology and to identify effective methods of prevention.

      Methods:
      We investigate genetic factors underlying the risk of this disease by conducting a genome-wide association study, followed by two validation studies, in 3,173 Japanese patients with EGFR mutation-positive lung adenocarcinoma and 15,158 controls.

      Results:
      Four loci, 5p15.33 (TERT), 6p21.3 (BTNL2, HLA-class II), 3q28 (TP63) and 17q24.2 (BPTF), previously shown to be strongly associated with overall lung adenocarcinoma risk in East Asians, were re-discovered as loci associated with a higher susceptibility to EGFR mutation-positive lung adenocarcinoma. In addition, two additional loci, HLA-class II at 6p21.32 and 6p21.1 (FOXP4) were newly identified as loci associated with EGFR mutation-positive lung adenocarcinoma (Shiraishi et al., Nature Communications, 2016, in press).

      Conclusion:
      This study indicates that multiple genetic factors, including an immunologic one, underlie the risk of lung adenocarcinomas with EGFR mutations.

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