Human dipeptidyl peptidase III regulates G-protein coupled receptor-dependent Ca2+ concentration in human embryonic kidney 293T cells

2016 ◽  
Vol 397 (6) ◽  
pp. 563-569 ◽  
Author(s):  
Subhash C. Prajapati ◽  
Ratnakar Singh ◽  
Shyam S. Chauhan

Abstract The precise biological function of human dipeptidyl peptidase III (hDPP III) is poorly understood. Using luciferase reporter constructs responsive to change in Ca2+ and/or cAMP and Fura 2-AM fluorometric assay, we show a significant decrease in intracellular Ca2+ following hDPP III overexpression and angiotensin II stimulation in angiotensin II type 1 receptor (G-protein coupled receptor, GPCR) expressing HEK293T cells. Silencing the expression of hDPP III by siRNA reversed the effect of hDPP III overexpression with a concomitant increase in Ca2+. These results, for the first time, show involvement of hDPP III in GPCR dependent Ca2+ regulation in HEK293T cells.

2015 ◽  
Vol 23 (1) ◽  
pp. 36-59 ◽  
Author(s):  
Tahsin Kellici ◽  
Dimitrios Ntountaniotis ◽  
Eftichia Kritsi ◽  
Maria Zervou ◽  
Panagiotis Zoumpoulakis ◽  
...  

Circulation ◽  
2005 ◽  
Vol 111 (14) ◽  
pp. 1806-1813 ◽  
Author(s):  
Evi Kostenis ◽  
Graeme Milligan ◽  
Arthur Christopoulos ◽  
Carlos F. Sanchez-Ferrer ◽  
Silvia Heringer-Walther ◽  
...  

Peptides ◽  
2020 ◽  
Vol 133 ◽  
pp. 170384
Author(s):  
Débora Raupp ◽  
Renata Streck Fernandes ◽  
Krist Helen Antunes ◽  
Fabíola Adélia Perin ◽  
Katya Rigatto

Endocrinology ◽  
2006 ◽  
Vol 147 (1) ◽  
pp. 441-450 ◽  
Author(s):  
Kazunori Kageyama ◽  
Komaki Hanada ◽  
Takako Moriyama ◽  
Takeshi Nigawara ◽  
Satoru Sakihara ◽  
...  

2008 ◽  
Vol 31 (7) ◽  
pp. 1455-1464 ◽  
Author(s):  
Junichi YATABE ◽  
Hironobu SANADA ◽  
Sanae MIDORIKAWA ◽  
Shigeatsu HASHIMOTO ◽  
Tsuyoshi WATANABE ◽  
...  

Physiology ◽  
1997 ◽  
Vol 12 (4) ◽  
pp. 145-152 ◽  
Author(s):  
SSG Ferguson ◽  
J Zhang ◽  
LS Barak ◽  
MG Caron

G protein-coupled receptor kinases and arrestin proteins are well-characterized mediators of agonist-dependent G protein-coupled receptor desensitization. These proteins are now shown to play a dual role in receptor regulation by mediating both receptor uncoupling and sequestration, a process important for receptor resensitization. b-Arrestins bound to phosporylated b2-adrenergic and angiotensin II type 1A receptors act as intracellular trafficking molecules specifically targeting these receptors for dynamin-dependent clathrin-coated vesicle-mediated sequestration.


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