Neurosecretory cells without neurosecretion: Evidence of an independently regulated trait of the cell phenotype

M. L. Malosio, R. Benfante, G. Racchetti, B. Borgonovo, P. Rosa, J. Meldolesi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Neurosecretion competence is a fundamental property that enables differentiated neurones and professional neurosecretory cells to store neurotransmitters and hormones in specialized organelles, the synaptic-like vesicles and dense granules, and to release them by regulated exocytosis. In our laboratory, the study of rat phaeochromocytoma (PC12) clones that fail to express the above organelles or any other components involved in neurosecretion, whilst maintaining most of the general markers of the parental population, has served to demonstrate that this trait is controlled independently from the rest of the phenotype. The present review focuses on recent advances in elucidating the molecular mechanisms governing neurosecretion competence. Moreover, the opportunities that such neurosecretion-defective PC12 clones offer for the investigation of new aspects of regulated exocytosis and the localization of its components are summarized.

Original languageEnglish
Pages (from-to)43-52
Number of pages10
JournalJournal of Physiology
Volume520
Issue number1
DOIs
Publication statusPublished - Oct 1 1999

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Neurosecretion
Phenotype
Exocytosis
Organelles
Mental Competency
Clone Cells
Synaptic Vesicles
Pheochromocytoma
Neurotransmitter Agents
Hormones
Neurons
Population

ASJC Scopus subject areas

  • Physiology

Cite this

Neurosecretory cells without neurosecretion : Evidence of an independently regulated trait of the cell phenotype. / Malosio, M. L.; Benfante, R.; Racchetti, G.; Borgonovo, B.; Rosa, P.; Meldolesi, J.

In: Journal of Physiology, Vol. 520, No. 1, 01.10.1999, p. 43-52.

Research output: Contribution to journalArticle

Malosio, M. L. ; Benfante, R. ; Racchetti, G. ; Borgonovo, B. ; Rosa, P. ; Meldolesi, J. / Neurosecretory cells without neurosecretion : Evidence of an independently regulated trait of the cell phenotype. In: Journal of Physiology. 1999 ; Vol. 520, No. 1. pp. 43-52.
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