Calcium channels, external calcium concentration and cell proliferation - Archive ouverte HAL
Article Dans Une Revue (Article De Synthèse) European Journal of Pharmacology Année : 2014

Calcium channels, external calcium concentration and cell proliferation

Anne-Sophie Borowiec
  • Fonction : Auteur
Natascha Pigat
  • Fonction : Auteur
Vincent Goffin
Sophie Bernichtein
  • Fonction : Auteur
Thierry Capiod
  • Fonction : Auteur
  • PersonId : 1085715

Résumé

Evidence for a role for calcium channel proteins in cell proliferation is numerous suggesting that calcium influx is essential in this physiological process. Several studies in the past thirty years have demonstrated that calcium channel expression levels are determinant in cell proliferation. Voltage-gated, storeoperated, second messengers and receptor-operated calcium channels have been associated to cell proliferation. However, the relationship between calcium influx and cell proliferation can be uncoupled in transformed and cancer cells, resulting in an external calcium-independent proliferation. Thus, protein expression could be more important than channel function to trigger cell proliferation suggesting that additional channel functions may be responsible to reconcile calcium channel expression and cell proliferation. When needed, external calcium concentration is obviously important for calcium channel function but it also regulates calcium sensing receptor (CaSR) activity. CaSR can up-or down-regulate cell proliferation depending on physiological conditions. CaSR sensitivity to external calcium is within the 0.5 to 5 mM range and therefore, the role of these receptors in cell proliferation must be taken into account. We therefore suggest here that cell proliferation rates could depend on the relative balance between calcium influx and CaSR activation.
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hal-03060345 , version 1 (13-12-2020)

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Anne-Sophie Borowiec, Gabriel Bidaux, Natascha Pigat, Vincent Goffin, Sophie Bernichtein, et al.. Calcium channels, external calcium concentration and cell proliferation. European Journal of Pharmacology, 2014, 739, pp.19-25. ⟨10.1016/j.ejphar.2013.10.072⟩. ⟨hal-03060345⟩

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