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Inter- and intracellular interactions of Nogo: new findings and hypothesis
Felicia Y H Teng1, Belinda M T Ling, Bor Luen Tang
1Department of Biochemistry and Neurobiology Program, National University of Singapore, Singapore.
Abstract:
The molecule Nogo has captured the imagination of many as a possible key player, and therefore therapeutic target, in the pathological settings of central nervous system (CNS) injury and degenerative pathology. Found in both glial cells and neurons, the endogenous, physiological role of Nogo is as yet unknown. Recently reported targeted disruption of the Nogo gene did not result in any obvious neuro-anatomical or neurological phenotype. Compared with wild-type mice, Nogo-deficient mice also did not exhibit a truly convincing enhancement in their ability to regenerate CNS neurons upon injury. Does the molecule have any important physiological function at all? Other recent discoveries of new interacting partners of Nogo at the mitochondria and the CNS paranode suggest intriguing links to the modulation of apoptosis and developmental organization or signalling at the axoglial junction.
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