USF-LVHN SELECT
Synaptic Vesicle Precursors and Lysosomes Are Transported by Different Mechanisms in the Axon of Mammalian Neurons.
Publication/Presentation Date
6-16-2020
Abstract
BORC is a multisubunit complex previously shown to promote coupling of mammalian lysosomes and C. elegans synaptic vesicle (SV) precursors (SVPs) to kinesins for anterograde transport of these organelles along microtubule tracks. We attempted to meld these observations into a unified model for axonal transport in mammalian neurons by testing two alternative hypotheses: (1) that SV and lysosomal proteins are co-transported within a single type of "lysosome-related vesicle" and (2) that SVPs and lysosomes are distinct organelles, but both depend on BORC for axonal transport. Analyses of various types of neurons from wild-type rats and mice, as well as from BORC-deficient mice, show that neither hypothesis is correct. We find that SVPs and lysosomes are transported separately, but only lysosomes depend on BORC for axonal transport in these neurons. These findings demonstrate that SVPs and lysosomes are distinct organelles that rely on different machineries for axonal transport in mammalian neurons.
Volume
31
Issue
11
First Page
107775
Last Page
107775
ISSN
2211-1247
Published In/Presented At
De Pace, R., Britt, D. J., Mercurio, J., Foster, A. M., Djavaherian, L., Hoffmann, V., Abebe, D., & Bonifacino, J. S. (2020). Synaptic Vesicle Precursors and Lysosomes Are Transported by Different Mechanisms in the Axon of Mammalian Neurons. Cell reports, 31(11), 107775. https://doi.org/10.1016/j.celrep.2020.107775
Disciplines
Medical Education | Medicine and Health Sciences
PubMedID
32553155
Department(s)
USF-LVHN SELECT Program, USF-LVHN SELECT Program Students
Document Type
Article