Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

The molecular pathways involved in retrograde signal transduction at synapses and the function of retrograde communication are poorly understood. Here, we demonstrate that postsynaptic calcium 2 + ion (Ca 2+ ) influx through glutamate receptors and subsequent postsynaptic vesicle fusion trigger a robust induction of presynaptic miniature release after high-frequency stimulation at Drosophila neuromuscular junctions. An isoform of the synaptotagmin family, synaptotagmin 4 (Syt 4), serves as a postsynaptic Ca 2+ sensor to release retrograde signals that stimulate enhanced presynaptic function through activation of the cyclic adenosine monophosphate (cAMP)–cAMP-dependent protein kinase pathway. Postsynaptic Ca 2+ influx also stimulates local synaptic differentiation and growth through Syt 4–mediated retrograde signals in a synapse-specific manner.

Bibliography

Yoshihara, M., Adolfsen, B., Galle, K. T., & Littleton, J. T. (2005). Retrograde Signaling by Syt 4 Induces Presynaptic Release and Synapse-Specific Growth. Science, 310(5749), 858–863.

Authors 4
  1. Motojiro Yoshihara (first)
  2. Bill Adolfsen (additional)
  3. Kathleen T. Galle (additional)
  4. J. Troy Littleton (additional)
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Dates
Type When
Created 19 years, 10 months ago (Nov. 3, 2005, 4:48 p.m.)
Deposited 1 year, 7 months ago (Jan. 9, 2024, 9:09 p.m.)
Indexed 1 month, 1 week ago (July 27, 2025, 3:21 a.m.)
Issued 19 years, 10 months ago (Nov. 4, 2005)
Published 19 years, 10 months ago (Nov. 4, 2005)
Published Print 19 years, 10 months ago (Nov. 4, 2005)
Funders 0

None

@article{Yoshihara_2005, title={Retrograde Signaling by Syt 4 Induces Presynaptic Release and Synapse-Specific Growth}, volume={310}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1117541}, DOI={10.1126/science.1117541}, number={5749}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Yoshihara, Motojiro and Adolfsen, Bill and Galle, Kathleen T. and Littleton, J. Troy}, year={2005}, month=nov, pages={858–863} }