Models for Golgi traffic: A critical assessment

Benjamin S. Glick, Alberto Luini

Research output: Contribution to journalArticlepeer-review

Abstract

Avariety of secretory cargoes move through the Golgi, but the pathways and mechanisms of this traffic are still being debated. Here, we evaluate the strengths and weaknesses of five current models for Golgi traffic: (1) anterograde vesicular transport between stable compartments, (2) cisternal progression/maturation, (3) cisternal progression/maturation with heterotypic tubular transport, (4) rapid partitioning in a mixed Golgi, and (5) stable compartments as cisternal progenitors. Each model is assessed for its ability to explain a set of key observations encompassing multiple cell types. No single model can easily explain all of the observations from diverse organisms. However, we propose that cisternal progression/ maturation is the best candidate for a conserved core mechanism of Golgi traffic, and that some cells elaborate this core mechanism by means of heterotypic tubular transport between cisternae.

Original languageEnglish
JournalCold Spring Harbor perspectives in biology
Volume3
Issue number11
DOIs
Publication statusPublished - Nov 2011

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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