Journal
JOURNAL OF NEUROBIOLOGY
Volume 58, Issue 2, Pages 207-216Publisher
WILEY
DOI: 10.1002/neu.10323
Keywords
signaling endosome hypothesis; retrograde transport; neurotrophin; clathrin-coated vesicle; early endosome; diffusion; calcium; inositol 1,4,5-trisphosphate; axon; neuron; neurotrophic factor hypothsesis
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Funding
- NIA NIH HHS [AG16999] Funding Source: Medline
- NINDS NIH HHS [NS38869, NS24054] Funding Source: Medline
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The kinetics of signaling endosome retrograde transport along axons is analyzed and offered as evidence that such transport is more efficient than diffusion or calcium wave-based signaling systems over even relatively small distances. Evidence is provided to support the signaling endosome hypothesis and to expand the hypothesis to include signaling in many cell types and many cellular dimensions. Finally, a saltatory, regenerating inositol 1,4,5-trisphosphate wave model is offered to reconcile current discrepancies in the literature regarding endosomal-based retrograde signaling. (C) 2003 Wiley Periodicals, Inc.
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