Plasma Membrane Ca2+-ATPase in Rat and Human Odontoblasts Mediates Dentin Mineralization.

ABSTRACT: Intracellular Ca2+ signaling engendered by Ca2+ influx and mobilization in odontoblasts is critical for dentinogenesis induced by multiple stimuli at the dentin surface. Increased Ca2+ is exported by the Na+-Ca2+ exchanger (NCX) and plasma membrane Ca2+-ATPase (PMCA) to maintain Ca2+ homeostasis. We previously demonstrated a functional coupling between Ca2+ extrusion by NCX and its influx through transient receptor potential channels in odontoblasts. Although the presence of PMCA in odontoblasts has been previously described, steady-state levels of mRNA-encoding PMCA subtypes, pharmacological properties, and other cellular functions remain unclear. Thus, we investigated PMCA mRNA levels and their contribution to mineralization under physiological conditions. We also examined the role of PM

SUBMITTER: Kimura M 

PROVIDER: S-EPMC8301758 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature