Tuberous sclerosis (TS) is an autosomal dominant multisystem disorder characterized by the widespread development of hamartomas in many tissues and organs. TSC2 is predicted to encode a 1784-amino acid tumor suppressor protein that may function, in part, as a GTPase-activating protein for Rap1. Given the high incidence of central nervous system abnormalities in individuals affected with tuberous sclerosis, the expression of TSC2 in developing and adult nervous system tissues was examined. Reverse transcription-PCR, Northern blot, and in situ hybridization analyses demonstrated high levels of expression of TSC2 in the adult brain and developing central nervous system. Abundant TSC2 expression was detected in the adult cerebellum, hippocampus, and olfactory bulb, with lower levels of expression observed in other tissues, including heart and kidney. This enrichment of TSC2 expression in neurons in the central nervous system suggests unique roles for this tumor suppressor gene product in the development and differentiation of nervous system tissues.

Original languageEnglish
Pages (from-to)1477-1483
Number of pages7
JournalCell Growth and Differentiation
Issue number11
StatePublished - 1995


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