Mouse and human strategies identify PTPN14 as a modifier of angiogenesis and hereditary haemorrhagic telangiectasia

Hereditary haemorrhagic telangiectasia (HTT) is caused by mutations in TGFβ/bone morphogenetic protein signalling genes. Here, Benzinou et al. show that variants of PTPN14, a gene within a mouse Tgfb1 modifier locus, associate with pulmonary arteriovenous malformation in HTT patients, shedding light on the molecular aetiology of this disease.