PATJ low frequency variants are associated with worse ischemic stroke functional outcome: a genome-wide meta-analysis

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Mola-Caminal, Marina
Carrera, Caty
Soriano Tárraga, Carolina
Giralt-Steinhauer, Eva
Díaz Navarro, Rosa
Tur, Silvia
Jiménez, Carmen
Medina-Dols, Aina
Cullel, Natalia
Torres-Águila, Nuria

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Mola-Caminal M, Carrera C, Soriano-Tárraga C, Giralt-Steinhauer E, Díaz-Navarro RM, Tur S, Jiménez C, Medina-Dols A, Cullell N, Torres-Aguila NP, Muiño E, Rodríguez-Campello A, Ois A, Cuadrado-Godia E, Vivanco-Hidalgo RM, Hernandez-Guillamon M, Solé M, Delgado P, Bustamante A, García-Berrocoso T, Mendióroz M, Castellanos M, Serena J, Martí-Fàbregas J, Segura T, Serrano-Heras G, Obach V, Ribó M, Molina CA, Alvarez-Sabín J, Palomeras E, Freijo M, Font MA, Rosand J, Rost NS, Gallego-Fabrega C, Lee JM, Heitsch L, Ibanez L, Cruchaga C, Phuah CL, Lemmens R, Thijs V, Lindgren A, Maguire J, Rannikmae K, Sudlow CL, Jern C, Stanne TM, Lorentzen E, Muñoz-Narbona L, Dávalos A, López-Cancio E, Worrall BB, Woo D, Kittner SJ, Mitchell BD, Montaner J, Roquer J, Krupinski J, Estivill X, Rabionet R, Vives-Bauzá C, Fernández-Cadenas I, Jiménez-Conde J. PATJ low frequency variants are associated with worse ischemic stroke functional outcome: a genome-wide meta-analysis. Circ Res. 2019 Jan 4;124(1):114-120.

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[Abstract] Rationale: Ischemic stroke is among the leading causes of adult disability. Part of the variability in functional outcome after stroke has been attributed to genetic factors but no locus has been consistently associated with stroke outcome. Objective: Our aim was to identify genetic loci influencing the recovery process using accurate phenotyping to produce the largest GWAS (genome-wide association study) in ischemic stroke recovery to date. Methods and results: A 12-cohort, 2-phase (discovery-replication and joint) meta-analysis of GWAS included anterior-territory and previously independent ischemic stroke cases. Functional outcome was recorded using 3-month modified Rankin Scale. Analyses were adjusted for confounders such as discharge National Institutes of Health Stroke Scale. A gene-based burden test was performed. The discovery phase (n=1225) was followed by open (n=2482) and stringent joint-analyses (n=1791). Those cohorts with modified Rankin Scale recorded at time points other than 3-month or incomplete data on previous functional status were excluded in the stringent analyses. Novel variants in PATJ (Pals1-associated tight junction) gene were associated with worse functional outcome at 3-month after stroke. The top variant was rs76221407 (G allele, β=0.40, P=1.70×10-9). Conclusions: Our results identify a set of common variants in PATJ gene associated with 3-month functional outcome at genome-wide significance level. Future studies should examine the role of PATJ in stroke recovery and consider stringent phenotyping to enrich the information captured to unveil additional stroke outcome loci.

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Meta-Analysis

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