Results 11 to 20 of about 3,353,625 (210)

Short-term high-glucose treatment decreased abundance of Orai1 protein through posttranslational mechanisms in rat mesangial cells [PDF]

open access: yesAmerican Journal of Physiology - Renal Physiology, 2018
The short-term effect of high-glucose (HG) treatment on store-operated Ca2+entry in mesangial cells (MCs) is not well-known. The aim of the present study was to determine whether and how HG treatment for a short period altered protein abundance of Orai1, the channel mediating store-operated Ca2+entry in MCs. Rat and human MCs were exposed to HG (25 mM)
Sarika Chaudhari   +2 more
exaly   +5 more sources

NEFA-Sensitive Orai1 Expression in Regulation of De Novo Lipogenesis [PDF]

open access: yesCellular Physiology and Biochemistry, 2018
Background/Aims: Non-esterified fatty acids (NEFAs) are important inducers of inflammatory responses and hepatic lipid accumulation, which lead to non-alcoholic fatty liver disease (NAFLD). High plasma NEFA is found in NAFLD patients, and associated with
Bingbing Zhang   +7 more
doaj   +3 more sources

Chorein Sensitive Orai1 Expression and Store Operated Ca2+ Entry in Rhabdomyosarcoma Cells

open access: yesCellular Physiology and Biochemistry, 2016
Background: Chorein, a protein encoded by VPS13A (vacuolar protein sorting-associated protein 13A), is defective in chorea acanthocytosis, a rare disease characterized by acanthocytosis of red blood cells and neuronal cell death with progressive ...
Willi Yu   +9 more
doaj   +2 more sources

Prolonged High Glucose Treatment Increased Orai1 Protein Expression through Inhibition of Lysosomal Pathway in Human Mesangial Cells

open access: yesThe FASEB Journal, 2015
The Orai1‐mediated store operated calcium entry (SOCE) is associated with many physiological and pathological processes in a variety of cells, including glomerular mesangial cells (MCs). We have previously demonstrated that prolonged treatment of MCs with high glucose (HG) significantly increased Orai1 expression at protein level, but not at mRNA level.
Sarika Chaudhari, Yanxia Wang, Rong Ma
openaire   +2 more sources

STIM proteins, Orai1, and gene expression [PDF]

open access: yesChannels, 2013
Cytoplasmic Ca(2+) is an universal intracellular messenger that activates cellular responses over a broad temporal range, from neurotransmitter release to cell growth and proliferation. Inherent to the use of the multifarious Ca(2+) signal is the question of specificity: how can some Ca(2+)-dependent responses be activated in a cell and not others?
Pulak, Kar, Anant, Parekh
openaire   +2 more sources

Cross-linking of Orai1 channels by STIM proteins [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
Significance The work presents a unique understanding of the organization and function of two ubiquitously expressed proteins, central in generating calcium signals in all cell types. These are the intracellular calcium sensing “STIM” proteins, and the highly selective cell surface “Orai” calcium channels. We reveal that STIM proteins
Yandong Zhou   +9 more
openaire   +2 more sources

STIM1 Mutants Modify CRAC by Altering Orai1 Protein Concentration [PDF]

open access: yesBiophysical Journal, 2012
The endoplasmic reticulum (ER) Ca(2+) sensor stromal interaction molecule 1 (STIM1) binds and activates plasma membrane localized Orai1 channels, providing a Ca2+ influx pathway (store operated calcium entry, SOCE) that is essential for proper immune cell function.
Kilch, Tatiana   +4 more
openaire   +1 more source

Novel Protein Kinase C-Mediated Control of Orai1 Function in Invasive Melanoma [PDF]

open access: yesMolecular and Cellular Biology, 2015
The incidence of malignant melanoma, a cancer of the melanocyte cell lineage, has nearly doubled in the past 20 years. Wnt5A, akey driver of melanoma invasiveness, induces Ca2 signals. To understand how store-operated calcium entry (SOCE) contributes to Wnt5A-induced malignancy in melanoma models, we examined the expression and function of STIM1 and ...
Robert Hooper   +9 more
openaire   +2 more sources

STIM2 protein regulates Orai1-mediated store-operated Ca2+ entry in cardiomyocytes

open access: yesArchives of Cardiovascular Diseases Supplements, 2021
Introduction Stromal interaction molecules, STIM1 and STIM2, are ER Ca2+ sensors that initiate store-operated Ca2+ entry (SOCE). It has been recently identified three STIM2 splice variants (STIM2.1, 2.2 and 2.3), STIM2.2 being SOCE activator whereas STIM2.1 will be SOCE inhibitor.
R. Luo   +4 more
openaire   +1 more source

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