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OA10 - EGFR Mutations (ID 382)
- Event: WCLC 2016
- Type: Oral Session
- Track: Biology/Pathology
- Presentations: 1
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): Y. Watanabe
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.
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.
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).
This study indicates that multiple genetic factors, including an immunologic one, underlie the risk of lung adenocarcinomas with EGFR mutations.
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