Polygenic risk score-analysis of thromboembolism in patients with acute lymphoblastic leukemia

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http://hdl.handle.net/10138/324408

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INVENT Consortium , Jarvis , K B , Nielsen , R L , Gupta , R , Huttunen , P , Ranta , S & LeBlanc , M 2020 , ' Polygenic risk score-analysis of thromboembolism in patients with acute lymphoblastic leukemia ' , Thrombosis Research , vol. 196 , pp. 15-20 . https://doi.org/10.1016/j.thromres.2020.08.015

Title: Polygenic risk score-analysis of thromboembolism in patients with acute lymphoblastic leukemia
Author: INVENT Consortium; Jarvis, Kirsten Brunsvig; Nielsen, Rikke Linnemann; Gupta, Ramneek; Huttunen, Pasi; Ranta, Susanna; LeBlanc, Marissa
Contributor: University of Helsinki, HUS Comprehensive Cancer Center
University of Helsinki, Karolinska Institutet
Date: 2020-12
Language: eng
Number of pages: 6
Belongs to series: Thrombosis Research
ISSN: 0049-3848
URI: http://hdl.handle.net/10138/324408
Abstract: Introduction: Thromboembolism (TE) is a common and serious toxicity of acute lymphoblastic leukemia (ALL) treatment, but studies of genetic predisposition have been underpowered with conflicting results. We tested whether TE in ALL and TE in the general adult population have a shared genetic etiology. Materials and methods: We prospectively registered TE events and collected germline DNA in patients 1.0-45.9 years in the Nordic Society of Pediatric Hematology and Oncology (NOPHO) ALL2008 study (7/2008-7/2016). Based on summary statistics from two large genome-wide association studies (GWAS) on venous TE in adults (the International Network of VENous Thromboembolism Clinical Research Networks (INVENT) consortium and the UK Biobank), we performed polygenic risk score (PRS) analysis on TE development in the NOPHO cohort, progressively expanding the PRS by increasing the p-value threshold of single nucleotide polymorphism (SNP) inclusion. Results and conclusion: Eighty-nine of 1252 patients with ALL developed TE, 2.5 year cumulative incidence 7.2%. PRS of genome-wide significant SNPs from the INVENT and UK Biobank data were not significantly associated with TE, HR 1.16 (p 0.14) and 1.02 (p 0.86), respectively. Expanding PRS by increasing p-value threshold did not reveal polygenic overlap. However, subgroup analysis of adolescents 10.0-17.9 years (n = 231), revealed significant polygenic overlap with the INVENT GWAS. The best fit PRS, including 16,144 SNPs, was associated with TE with HR 1.76 (95% CI 1.23-2.52, empirical p-value 0.02). Our results support an underlying genetic predisposition for TE in adolescents with ALL and should be explored further in future TE risk prediction models.
Subject: Acute lymphoblastic leukemia
Thromboembolism
Polygenic risk score
CHILDREN
ADULTS
3122 Cancers
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