On and Off Retinal Circuit Assembly by Divergent Molecular Mechanisms

Author:

Sun Lu O.12,Jiang Zheng1,Rivlin-Etzion Michal3,Hand Randal12,Brady Colleen M.12,Matsuoka Ryota L.12,Yau King-Wai1,Feller Marla B.3,Kolodkin Alex L.12

Affiliation:

1. Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.

2. Howard Hughes Medical Institute, Baltimore, MD 21205, USA.

3. Department of Molecular and Cell Biology and the Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA.

Abstract

Wiring the Retina Starburst amacrine cells in the retina detect motion by responding to light going on or off. L. O. Sun et al. ( 10.1126/science.1241974 ) analyzed how the cellular circuits develop in the mouse retina to form the basis of motion detection. Expression patterns of semaphorin 6A and its receptor plexin A2 defined the shape and reactivity of the starburst amacrine cells. Semaphorin 6A expression was restricted to particular cells, generating two classes of starburst amacrine cells with distinct morphologies and opposing functions.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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