Etiology and Genetics of Congenital Vascular Lesions

The detection of somatic, activating genetic mutations to underlie development of vascular tumors and malformations led to a better understanding of their pathophysiology. Proteins encoded by the detected mutated genes activate the two major signaling pathways, also involved in cancer: the RAS/MAPK/ERK pathway and/or the PI3K/AKT/mTOR pathway. This gives a strong basis for studies to repurpose cancer therapeutics to patients with vascular tumors and malformations.

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