Unknown

Dataset Information

0

Regulation and roles of Ca2+ stores in human sperm.


ABSTRACT: [Ca(2)(+)]i signalling is a key regulatory mechanism in sperm function. In mammalian sperm the Ca(2)(+)-permeable plasma membrane ion channel CatSper is central to [Ca(2)(+)]i signalling, but there is good evidence that Ca(2)(+) stored in intracellular organelles is also functionally important. Here we briefly review the current understanding of the diversity of Ca(2)(+) stores and the mechanisms for the regulation of their activity. We then consider the evidence for the involvement of these stores in [Ca(2)(+)]i signalling in mammalian (primarily human) sperm, the agonists that may activate these stores and their role in control of sperm function. Finally we consider the evidence that membrane Ca(2)(+) channels and stored Ca(2)(+) may play discrete roles in the regulation of sperm activities and propose a mechanism by which these different components of the sperm Ca(2)(+)-signalling apparatus may interact to generate complex and spatially diverse [Ca(2)(+)]i signals.

SUBMITTER: Correia J 

PROVIDER: S-EPMC4497595 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature

altmetric image

Publications

Regulation and roles of Ca2+ stores in human sperm.

Correia Joao J   Michelangeli Francesco F   Publicover Stephen S  

Reproduction (Cambridge, England) 20150511 2


[Ca(2)(+)]i signalling is a key regulatory mechanism in sperm function. In mammalian sperm the Ca(2)(+)-permeable plasma membrane ion channel CatSper is central to [Ca(2)(+)]i signalling, but there is good evidence that Ca(2)(+) stored in intracellular organelles is also functionally important. Here we briefly review the current understanding of the diversity of Ca(2)(+) stores and the mechanisms for the regulation of their activity. We then consider the evidence for the involvement of these sto  ...[more]

Similar Datasets

| S-EPMC3585060 | biostudies-literature
| S-EPMC1885980 | biostudies-literature
| S-EPMC2777309 | biostudies-literature
| S-EPMC2781690 | biostudies-literature
| S-EPMC6729265 | biostudies-literature
| S-EPMC8450872 | biostudies-literature
| S-EPMC2292798 | biostudies-literature
| S-EPMC4806657 | biostudies-literature
| S-EPMC3089573 | biostudies-literature
| S-EPMC3672942 | biostudies-literature