Journal
INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY
Volume 41, Issue 5, Pages 990-993Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biocel.2008.06.014
Keywords
Ten-m; Odz; Topography; Retina; Neural development; Axon guidance
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Teneurin (Ten-m/Odz) molecules represent a highly conserved family of four type 11 transmembrane proteins in vertebrates (Ten-m1-4), which exist as homodimers and undergo homophilic interactions. Each is expressed in distinct, and often interconnected, areas of the developing nervous system. Different Tenms have complementary expression patterns. In vitro and in vivo studies support roles for teneurins in promoting neurite outgrowth and cell adhesion. Furthermore, the intracellular domains of at least two teneurins can undergo proteolytic cleavage and translocate to the nucleus where they regulate transcriptional activity. Recent in vivo studies show that teneurins play important roles in regulating connectivity in the nervous system. Knockdown in C elegans resulted in abnormal axon guidance and cell migration, while targeted deletion of Ten-m3 in mice revealed it is required for the guidance of retinal axons and generation of visual topography. It is likely that all teneurins play important roles during neural development. (C) 2008 Elsevier Ltd. All rights reserved.
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