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Cancer & Tumors

Son Y, Park H-J, Jeong YJ, Choi H-D, Kim N, Lee H-J

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Authors not listed · 2023

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Genetic variants increase lung cancer risk more in never-smokers, suggesting environmental exposures may pose higher risks to genetically susceptible individuals.

Plain English Summary

Summary written for general audiences

Scientists analyzed genetic data from over 172,000 people of East Asian ancestry to identify genetic variants that increase lung cancer risk. They discovered 12 new genetic markers linked to lung adenocarcinoma, with most findings specific to East Asian populations rather than Europeans. The genetic risk factors were stronger in people who never smoked compared to smokers.

Why This Matters

While this genetic study doesn't directly examine EMF exposure, it reveals something crucial about lung cancer susceptibility that has implications for environmental health research. The finding that genetic risk factors are stronger in never-smokers suggests these individuals may be more vulnerable to environmental carcinogens, including radiofrequency radiation from wireless devices. The science demonstrates that genetic predisposition can amplify environmental risks. What this means for you is that population-wide exposure assessments may underestimate risks for genetically susceptible individuals. The reality is that EMF research often treats populations as homogeneous, but genetic variants could make some people significantly more vulnerable to wireless radiation's potential carcinogenic effects.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2023). Son Y, Park H-J, Jeong YJ, Choi H-D, Kim N, Lee H-J.
Show BibTeX
@article{son_y_park_h_j_jeong_yj_choi_h_d_kim_n_lee_h_j_ce3500,
  author = {Unknown},
  title = {Son Y, Park H-J, Jeong YJ, Choi H-D, Kim N, Lee H-J},
  year = {2023},
  doi = {10.1038/s41467-023-38196-z},
  
}
DOI: 10.1038/s41467-023-38196-zPubMed: 37236969

Quick Questions About This Study

The study found most genetic variants associated with lung cancer in East Asians showed no association in Europeans, indicating population-specific genetic susceptibilities that likely evolved due to different environmental pressures and ancestral backgrounds over thousands of years.
Researchers identified 12 novel genetic variants linked to lung adenocarcinoma susceptibility, bringing the total known variants to 28 across 25 independent genetic locations in people of East Asian ancestry.
The polygenic risk score showed stronger associations in never-smokers compared to smokers, suggesting genetic factors may play a more prominent role when tobacco's overwhelming carcinogenic effects aren't present to mask other risk contributors.
An impressive 54.5% of the 21,658 lung cancer cases in the study were never-smokers, highlighting that lung adenocarcinoma frequently occurs in people without smoking history, particularly in East Asian populations.
The study identified FADS1 at chromosome location 11q12 and ELF5 at 11p13 as novel candidate genes through advanced analysis combining gene expression data with genetic association results from Taiwanese populations.