ESPE Abstracts

Background and Aim: Pediatric patients with germline mutations in the tumor suppressor gene PTEN (PTEN hamartoma tumor syndrome, PHTS) frequently develop lipomas. PTEN antagonizes phosphoinositide 3-kinase (PI3K) signaling, which can induce adipogenesis upon activation through insulin. The PI3K downstream target AKT can deactivate FOXO1 via phosphorylation, initiating the expression of the lipogenesis activating transcription factor SREBP1. To study t...

Background and aim: PTEN hamartoma tumor syndrome (PHTS) is caused by germline mutation in the phosphatase and tensin homolog (PTEN) gene. PTEN is a tumor suppressor gene and antagonist of the growth and survival signalling Phosphoinositide 3-kinase (PI3K)/AKT/mammalian target of Rapamycin (mTOR)- cascade. Patients with PHTS, amongst other symptoms, develop lipomas, for which the underlying mechanism is not completely understood. To investigate the role of PTE...