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Ferroptosis related CPT1A and GDF15 gene polymorphisms are risk factors for lung adenocarcinoma: A case-control study
Xing Zhang1, Rong Wang1, Xia Zhang1
1Respiratory department, Shanxi Province Cancer Hospital/Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Science/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, China.
Background:
Ferroptosis is not only a consequence of inflammation, but also a dynamic process. Recent bioinformatics analysis suggests that ferroptosis related genes might be associated with lung adenocarcinoma (LUAD). CPT1A and GDF15 are critical for the process of ferroptosis and development of inflammation; however, little study focused on the mutation level of these genes in patients with LUAD.
Methods:
The candidate SNPs in CPT1A and GDF15 were genotyped in 320 pairs of LUAD patients and controls using Mass ARRAY platform. Moreover, the different expression of CPT1A and GDF15 in LUAD cases and healthy controls were validated by qRT-PCR and ELISA.
Results:
The rs80356779 G > A, rs3019594 C > T, rs888663 T > G and rs4808793 G > C all exhibited an increased risk of the disease (p < 0.05). Moreover, the rs80356779-GA, rs3019594-TT, rs888663-TG and rs4808793-CC genotypes were all related to different levels of increase in LUAD risk (p < 0.05). Genetic model results showed that rs80356779 G > A, rs888663 T > G and rs4808793 G > C were associated with LUAD susceptibility under dominant and additive models (p < 0.05), while rs3019594 C > T was correlated with an elevated risk of the disease in all three models (p < 0.05). Additionally, patients with rs80356779 G > A and rs3019594 C > T exhibited lower expression and serum concentration of CPT1A compared with wile types, and patients with rs888663 T > G and rs4808793 G > C exhibited higher serum and expression level of GDF15.
Conclusion:
The results provided new clues for the role of ferroptosis in LUAD and new potential targets for screening of susceptible population.
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