Biogenesis and transport of secretory granules to release site in neuroendocrine cells

Joshua J. Park, Hisatsugu Koshimizu, Y. Peng Loh

Research output: Contribution to journalReview article

21 Citations (Scopus)

Abstract

Biogenesis and post-Golgi transport of peptidergic secretory granules to the release site are crucial for secretion of neuropeptides from neuroendocrine cells. Recent studies have uncovered multilevel molecular mechanisms for the regulation of secretory granule biogenesis. Insulinoma-associated protein 2 (ICA512/IA-2), polypyrimidine-tract binding protein, and chromogranin A have been identified to regulate secretory granule biogenesis at the transcriptional, posttranscriptional, and posttranslational levels, respectively, by increasing granule protein levels, which in turn drives granule formation after stimulation. Post-Golgi transport of secretory granules is microtubule-based and mediated by transmembrane carboxypeptidase E (CPE). The cytoplasmic tail of CPE anchors secretory granules to the microtubule motors, kinesin-2 and -3, or dynein, via interaction with the adaptor, dynactin, to mediate anterograde and retrograde transport, respectively.

Original languageEnglish
Pages (from-to)151-159
Number of pages9
JournalJournal of Molecular Neuroscience
Volume37
Issue number2
DOIs
Publication statusPublished - 01-02-2009

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Neuroendocrine Cells
Secretory Vesicles
Class 8 Receptor-Like Protein Tyrosine Phosphatases
Carboxypeptidase H
Microtubules
Polypyrimidine Tract-Binding Protein
Dyneins
Chromogranin A
Kinesin
Staphylococcal Protein A
Neuropeptides
Proteins

All Science Journal Classification (ASJC) codes

  • Cellular and Molecular Neuroscience

Cite this

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Biogenesis and transport of secretory granules to release site in neuroendocrine cells. / Park, Joshua J.; Koshimizu, Hisatsugu; Loh, Y. Peng.

In: Journal of Molecular Neuroscience, Vol. 37, No. 2, 01.02.2009, p. 151-159.

Research output: Contribution to journalReview article

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