Regulation of Angiogenic Functions by Angiopoietins through Calcium-Dependent Signaling Pathways
Joint Authors
Pafumi, Irene
Favia, Annarita
Gambara, Guido
Papacci, Francesca
Palombi, Fioretta
Ziparo, Elio
Filippini, Antonio
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-04
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Angiopoietins are vascular factors essential for blood vessel assembly and correct organization and maturation.
This study describes a novel calcium-dependent machinery activated through Angiopoietin-1/2-Tie receptor system in HUVECs monolayer.
Both cytokines were found to elicit intracellular calcium mobilization.
Targeting intracellular Ca2+ signaling, antagonizing IP3 with 2-APB or cADPR with 8Br-cADPR, was found to modulate in vitro angiogenic responses to Angiopoietins in a specific way.
2-APB and 8Br-cADPR impaired the phosphorylation of AKT and FAK induced by Ang-1 and Ang-2.
On the other hand, phosphorylation of ERK1/2 and p38, as well as cell proliferation, was not affected by either inhibitor.
The ability of ECs to migrate following Angs stimulation, evaluated by “scratch assay,” was reduced by either 2-APB or 8Br-cADPR following Ang-2 stimulation and only slightly affected by 2-APB in cells stimulated with Ang-1.
These results identify a novel calcium-dependent machinery involved in the complex interplay regulating angiogenic processes showing that IP3- and cADPR-induced Ca2+ release specifically regulates distinct Angs-mediated angiogenic steps.
American Psychological Association (APA)
Pafumi, Irene& Favia, Annarita& Gambara, Guido& Papacci, Francesca& Ziparo, Elio& Palombi, Fioretta…[et al.]. 2015. Regulation of Angiogenic Functions by Angiopoietins through Calcium-Dependent Signaling Pathways. BioMed Research International،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1057410
Modern Language Association (MLA)
Pafumi, Irene…[et al.]. Regulation of Angiogenic Functions by Angiopoietins through Calcium-Dependent Signaling Pathways. BioMed Research International No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1057410
American Medical Association (AMA)
Pafumi, Irene& Favia, Annarita& Gambara, Guido& Papacci, Francesca& Ziparo, Elio& Palombi, Fioretta…[et al.]. Regulation of Angiogenic Functions by Angiopoietins through Calcium-Dependent Signaling Pathways. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1057410
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1057410