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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | You, Dongfang Wang, Danhua Wu, Yaqian Chen, Xin Shao, Fang Wei, Yongyue Zhang, Ruyang Lange, Theis Ma, Hongxia Xu, Hongyang Hu, Zhibin Christiani, David C. Shen, Hongbing Chen, Feng Zhao, Yang |
| Abstract | Background Body mass index (BMI) has been found to be associated with a decreased risk of non-small cell lung cancer (NSCLC); however, the effect of BMI trajectories and potential interactions with genetic variants on NSCLC risk remain unknown. Methods Cox proportional hazards regression model was applied to assess the association between BMI trajectory and NSCLC risk in a cohort of 138,110 participants from the Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial. One-sample Mendelian randomization (MR) analysis was further used to access the causality between BMI trajectories and NSCLC risk. Additionally, polygenic risk score (PRS) and genome-wide interaction analysis (GWIA) were used to evaluate the multiplicative interaction between BMI trajectories and genetic variants in NSCLC risk. Results Compared with individuals maintaining a stable normal BMI (n = 47,982, 34.74%), BMI trajectories from normal to overweight (n = 64,498, 46.70%), from normal to obese (n = 21,259, 15.39%), and from overweight to obese (n = 4,371, 3.16%) were associated with a decreased risk of NSCLC (hazard ratio [HR] for trend = 0.78, P < 2×10−16). An MR study using BMI trajectory associated with genetic variants revealed no significant association between BMI trajectories and NSCLC risk. Further analysis of PRS showed that a higher GWAS-identified PRS (PRSGWAS) was associated with an increased risk of NSCLC, while the interaction between BMI trajectories and PRSGWAS with the NSCLC risk was not significant (PsPRS= 0.863 and PwPRS= 0.704). In GWIA analysis, four independent susceptibility loci (P < 1×10−6) were found to be associated with BMI trajectories on NSCLC risk, including rs79297227 (12q14.1, located in SLC16A7, Pinteraction = 1.01×10−7), rs2336652 (3p22.3, near CLASP2, Pinteraction = 3.92×10−7), rs16018 (19p13.2, in CACNA1A, Pinteraction = 3.92×10−7), and rs4726760 (7q34, near BRAF, Pinteraction = 9.19×10−7). Functional annotation demonstrated that these loci may be involved in the development of NSCLC by regulating cell growth, differentiation, and inflammation. Conclusions Our study has shown an association between BMI trajectories, genetic factors, and NSCLC risk. Interestingly, four novel genetic loci were identified to interact with BMI trajectories on NSCLC risk, providing more support for the aetiology research of NSCLC. Trial registration http://www.clinicaltrials.gov , NCT01696968 . |
| Related Links | https://bmcmedicine.biomedcentral.com/counter/pdf/10.1186/s12916-022-02400-6.pdf |
| Ending Page | 13 |
| Page Count | 13 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 17417015 |
| DOI | 10.1186/s12916-022-02400-6 |
| Journal | BMC Medicine |
| Issue Number | 1 |
| Volume Number | 20 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2022-06-06 |
| Access Restriction | Open |
| Subject Keyword | Medicine Public Health Biomedicine Body mass index Trajectory Genome-wide interaction study Non-small cell lung cancer Medicine/Public Health |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine |
| Journal Impact Factor | 7.1/2023 |
| 5-Year Journal Impact Factor | 8.8/2023 |
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