Notch3: from subtle structural differences to functional diversity - PubMed (original) (raw)

Review

. 2008 Sep 1;27(38):5092-8.

doi: 10.1038/onc.2008.230.

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Review

Notch3: from subtle structural differences to functional diversity

D Bellavia et al. Oncogene. 2008.

Abstract

The Notch3 gene was identified, at the beginning of 90s, as the third mammalian Notch and was initially reported as being expressed in proliferating neuroepithelium. Since then, increasing evidence has demonstrated a number of structural and functional differences between Notch3 and both Notch1 and Notch2, which exhibit the highest structural similarity among the four mammalian Notch receptors. Possibly due to its more restricted tissue distribution, targeted deletion of murine Notch3 does not lead to embryonic lethality as is observed with targeted deletion of Notch1 and Notch2. However, genetic mutation, amplification and deregulated expression of Notch3 have been correlated with the disruption of cell differentiation in transgenic mice and to development of diseases in mice and humans. This review discusses the possible relationships between the structural differences and the nonredundant roles that Notch3 plays in the pathogenesis of the human disease cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy and in the regulation of murine T-cell differentiation and leukemogenesis.

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