PI3 kinase inhibition improves vascular malformations in mouse models of hereditary haemorrhagic telangiectasia

Arteriovenous malformations (AVM) is a hallmark of hereditary haemorrhagic telangiectasia type 2, a disease caused by mutations in BMP receptor ALK1. Ola et al. show that AVM can be caused by blocking BMP9 and BMP10 in mice, leading to increased VEGF and PI3K activity, and that pharmacologic inhibition of PI3K prevents AVM development.