Abstract
Purpose
Mounting evidence suggests a possible link between gut microbiome and oral cancer, pointing to some potential modifiable targets for disease prevention. In the present study, Mendelian randomization (MR) was used to explore whether there was a causal link between gut microbiome and oral cancer.
Methods
The single nucleotide polymorphisms (SNPs) significantly associated with gut microbiome were served as instrumental variables. MR analyses were performed using genetic approaches such as inverse variance weighting (IVW), MR Egger and weighted median, with IVW as the primary approach, supplemented by MR Egger and weighted median. Mendelian randomization pleiotropy residual sum and outlier (MR-PRESSO) and MR-Egger regression were used to detect the presence of horizontal pleiotropy and identify outlier SNPs.
Results
Causal effect estimates indicated that genetically predicted abundance of Prevotellaceae was associated with higher risk of oral cancer (odds ratio (OR) 1.80, 95% confidence interval (CI) 1.16–2.81, p = 0.009). There was no evidence of notable heterogeneity and horizontal pleiotropy.
Conclusion
Genetically derived estimates suggest that Prevotellaceae may be associated with the risk of oral cancer. Such robust evidence should be given priority in future studies and explore the underlying mechanisms.
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Data availability
The datasets used and/or analyzed during the current study are available from the corresponding author on request.
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All authors contributed to the study conception and design. The first draft of the manuscript was written by KX. Analyses were performed by KX and CXL. RC and CHZ assisted in substantive revisions to the drafted manuscript. All authors read and approved the final manuscript.
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10552_2023_1800_MOESM1_ESM.tif
Supplementary file1 Fig. S1 Sensitivity analyses of the associations between Prevotellaceae and oral cancer (TIF 1621 KB)
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Xiang, K., Li, CX., Chen, R. et al. Genetically predicted gut microbiome and risk of oral cancer. Cancer Causes Control 35, 429–435 (2024). https://doi.org/10.1007/s10552-023-01800-0
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DOI: https://doi.org/10.1007/s10552-023-01800-0