Delivering alcohol neurotoxicity into nucleus, when clusterin meets BclXL: a commentary.
The study by Kim and colleagues (in press) demonstrated that the expression of nuclear isoform of clusterin is induced by ethanol (EtOH) to participate in apoptotic cell death of neurons in developing rodent brain. EtOH-induced nuclear clusterin interacts with Bcl(XL), thereby liberating proapoptotic Bax. This study indicates the proapoptotic role of nuclear clusterin in EtOH-exposed neurons, linking specific nuclear events to alcohol neurotoxicity. The study provides novel insights into the molecular mechanisms underlying fetal alcohol spectrum disorders.