Calcium responses to external mechanical stimuli in the multicellular stage of Dictyostelium discoideum.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
20 07 2022
20 07 2022
Historique:
received:
28
05
2022
accepted:
15
07
2022
entrez:
21
7
2022
pubmed:
22
7
2022
medline:
23
7
2022
Statut:
epublish
Résumé
Calcium acts as a second messenger to regulate many cellular functions, including cell motility. In Dictyostelium discoideum, the cytosolic calcium level oscillates synchronously, and calcium waves propagate through the cell population during the early stages of development, including aggregation. In the unicellular phase, the calcium response through Piezo channels also functions in mechanosensing. However, calcium dynamics during multicellular morphogenesis are still unclear. Here, live imaging of cytosolic calcium revealed that calcium wave propagation, depending on cAMP relay, disappeared at the onset of multicellular body (slug) formation. Later, other forms of occasional calcium bursts and their propagation were observed in both anterior and posterior regions of migrating slugs. This calcium signaling also occurred in response to mechanical stimuli. Two pathways-calcium release from the endoplasmic reticulum via IP3 receptor and calcium influx from outside the cell-were involved in calcium signals induced by mechanical stimuli. These data suggest that calcium signaling is involved in mechanosensing in both the unicellular and multicellular phases of Dictyostelium development using different molecular mechanisms.
Identifiants
pubmed: 35859163
doi: 10.1038/s41598-022-16774-3
pii: 10.1038/s41598-022-16774-3
pmc: PMC9300675
doi:
Substances chimiques
Calcium, Dietary
0
Cyclic AMP
E0399OZS9N
Calcium
SY7Q814VUP
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
12428Informations de copyright
© 2022. The Author(s).
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