Meta-GWAS identifies the heritability of acute radiation-induced toxicities in head and neck cancer
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Authors
Naderi, E.Schack, L. M. H.
Welsh, C.
Sim, A. Y. L.
Aguado-Barrera, M. E.
Dudding, T.
Summersgil, Holly
Martínez-Calvo, L.
Ong, E. H. W.
Odding, Y.
Varela-Pazos, A.
Steenbakkers, R.
Crijns, A. P. G.
Jena, R.
Pring, M.
Dennis, J.
Lobato-Busto, R.
Alsner, J.
Ness, A.
Nutting, C.
Thomson, David J
Gómez-Caamaño, A.
Eriksen, J. G.
Thomas, S. J.
Bates, A. M.
Overgaard, J.
Cascallar-Caneda, L. M.
Duprez, F.
Barnett, G. C.
Dorling, L.
M, L. K. C.
Vega, A.
West, Catharine M L
Langendijk, J. A.
Nicolaj Andreassen, C.
Alizadeh, B. Z.
Affiliation
Department of Radiation Oncology, University Medical Center Groningen, Groningen, The Netherlands; Department of Epidemiology, University Medical Center Groningen, Groningen, The NetherlandsIssue Date
2022
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Background and purpose: We aimed to the genetic components and susceptibility variants associated with acute radiation-induced toxicities (RITs) in patients with head and neck cancer (HNC). Materials and methods: We performed the largest meta-GWAS of seven European cohorts (n = 4,042). Patients were scored weekly during radiotherapy for acute RITs including dysphagia, mucositis, and xerostomia. We analyzed the effect of variants on the average burden (measured as area under curve, AUC) per each RIT, and standardized total average acute toxicity (STATacute) score using a multivariate linear regression. We tested suggestive variants (p < 1.0x10-5) in discovery set (three cohorts; n = 2,640) in a replication set (four cohorts; n = 1,402). We meta-analysed all cohorts to calculate RITs specific SNP-based heritability, and effect of polygenic risk scores (PRSs), and genetic correlations among RITS. Results: From 393 suggestive SNPs identified in discovery set; 37 were nominally significant (preplication < 0.05) in replication set, but none reached genome-wide significance (pcombined < 5 × 10-8). In-silico functional analyses identified "3'-5'-exoribonuclease activity" (FDR = 1.6e-10) for dysphagia, "inositol phosphate-mediated signalling" for mucositis (FDR = 2.20e-09), and "drug catabolic process" for STATacute (FDR = 3.57e-12) as the most enriched pathways by the RIT specific suggestive genes. The SNP-based heritability (±standard error) was 29 ± 0.08 % for dysphagia, 9 ± 0.12 % (mucositis) and 27 ± 0.09 % (STATacute). Positive genetic correlation was rg = 0.65 (p = 0.048) between dysphagia and STATacute. PRSs explained limited variation of dysphagia (3 %), mucositis (2.5 %), and STATacute (0.4 %). Conclusion: In HNC patients, acute RITs are modestly heritable, sharing 10 % genetic susceptibility, when PRS explains < 3 % of their variance. We identified numerus suggestive SNPs, which remain to be replicated in larger studies.Citation
Naderi E, Schack LMH, Welsh C, Sim AYL, Aguado-Barrera ME, Dudding T, et al. Meta-GWAS identifies the heritability of acute radiation-induced toxicities in head and neck cancer. Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology. 2022 Sep 30. PubMed PMID: 36191651. Epub 2022/10/04. eng.Journal
Radiotherapy and OncologyDOI
10.1016/j.radonc.2022.09.016PubMed ID
36191651Additional Links
https://dx.doi.org/10.1016/j.radonc.2022.09.016Type
ArticleLanguage
enae974a485f413a2113503eed53cd6c53
10.1016/j.radonc.2022.09.016
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