Cell Calcium, volume 71, pages 1-14

Coupling of P2Y receptors to Ca2+ mobilization in mesenchymal stromal cells from the human adipose tissue

Publication typeJournal Article
Publication date2018-05-01
Journal: Cell Calcium
Quartile SCImago
Q1
Quartile WOS
Q3
Impact factor4
ISSN01434160, 15321991
Molecular Biology
Cell Biology
Physiology
Abstract
The purinergic transduction was examined in mesenchymal stromal cells (MSCs) from the human adipose tissue, and several nucleotides, including ATP, UTP, and ADP, were found to mobilize cytosolic Ca2+. Transcripts for multiple purinoreceptors were detected in MSC preparations, including A1, A2A, A2B, P2Y1, P2Y2, P2Y4, P2Y6, P2Y11, P2Y13, P2Y14, P2X2, P2X4, and P2X7. Cellular responses to nucleotides were insignificantly sensitive to bath Ca2+, pointing at a minor contribution of Ca2+ entry, and were suppressed by U73122 and 2-APB, implicating the phosphoinositide cascade in coupling P2Y receptors to Ca2+ release. While individual cells were sensitive to several P2Y agonists, responsiveness to a given nucleotide varied from cell to cell, suggesting that particular MSCs could employ different sets of purinoreceptors. Caged Ca2+ stimulated Ca2+-induced Ca2+ release (CICR) that was mediated largely by IP3 receptors, and resultant Ca2+ transients were similar to nucleotide responses by magnitude and kinetics. A variety of findings hinted at CICR to be a universal mechanism that finalizes Ca2+ signaling initiated by agonists in MSCs. Individual MSCs responded to nucleotides in an all-or-nothing manner. Presumably just CICR provided invariant Ca2+ responses observed in MSCs at different nucleotide concentrations. The effects of isoform specific agonists and antagonists suggested that both P2Y1 and P2Y13 were obligatory for ADP responses, while P2Y4 and P2Y11 served as primary UTP and ATP receptors, respectively. Extracellular NAD+ stimulated Ca2+ signaling in each ATP-responsive MSC by involving P2Y11. The overall data indicate that extracellular nucleotides and NAD+ can serve as autocrine/paracrine factors regulating MSC functions.

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GOST Copy
Kotova P. D. et al. Coupling of P2Y receptors to Ca2+ mobilization in mesenchymal stromal cells from the human adipose tissue // Cell Calcium. 2018. Vol. 71. pp. 1-14.
GOST all authors (up to 50) Copy
Kotova P. D., Bystrova M. F., Rogachevskaja O. A., Khokhlov A., Sysoeva V., Tkachuk V. A., Kolesnikov S. S. Coupling of P2Y receptors to Ca2+ mobilization in mesenchymal stromal cells from the human adipose tissue // Cell Calcium. 2018. Vol. 71. pp. 1-14.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.ceca.2017.11.001
UR - https://doi.org/10.1016%2Fj.ceca.2017.11.001
TI - Coupling of P2Y receptors to Ca2+ mobilization in mesenchymal stromal cells from the human adipose tissue
T2 - Cell Calcium
AU - Kotova, Polina D
AU - Bystrova, Marina F.
AU - Rogachevskaja, Olga A
AU - Khokhlov, Alexandr
AU - Sysoeva, Veronika
AU - Tkachuk, Vsevolod A.
AU - Kolesnikov, Stanislav S
PY - 2018
DA - 2018/05/01 00:00:00
PB - Elsevier
SP - 1-14
VL - 71
SN - 0143-4160
SN - 1532-1991
ER -
BibTex
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BibTex Copy
@article{2018_Kotova,
author = {Polina D Kotova and Marina F. Bystrova and Olga A Rogachevskaja and Alexandr Khokhlov and Veronika Sysoeva and Vsevolod A. Tkachuk and Stanislav S Kolesnikov},
title = {Coupling of P2Y receptors to Ca2+ mobilization in mesenchymal stromal cells from the human adipose tissue},
journal = {Cell Calcium},
year = {2018},
volume = {71},
publisher = {Elsevier},
month = {may},
url = {https://doi.org/10.1016%2Fj.ceca.2017.11.001},
pages = {1--14},
doi = {10.1016/j.ceca.2017.11.001}
}
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