Results 61 to 70 of about 4,465 (176)

Evolutionarily conserved hydrophobicity and sterics in TM3/TM4 balance Orai1 pore opening

Protein Science, Volume 35, Issue 8, August 2026.
Abstract The calcium (Ca2+) channel Orai1—the pore‐forming subunit of the Ca2+ release‐activated Ca2+ channel—is opened by its physiological activator, the endoplasmic reticulum (ER)‐resident Ca2+ sensor stromal interaction molecule 1 (STIM1) upon ER Ca2+ store‐depletion.
Maximilian Fröhlich, Tamara Radišković, Valentina Hopl, Magdalena Prantl, Hadil Najjar, Selina Harant, Diana Thallinger, Muhammad Shehzad Anwar, Ferdinand Horvath, Julia Söllner, Yuliia Nazarenko, Matthias Sallinger, Nora Müller, Adéla Tiffner, Sarah Weiß, Herwig Grabmayr, Heinrich Krobath, Isabella Derler   +17 more
wiley   +1 more source

The role of proteins Stim and Orai as molecular components of the store-dependent current Ca2+ in lymphocytes

Бюллетень сибирской медицины, 2018
In the process of evolution of eukaryotes has formatted a highly organized mechanism for maintaining and regulating intracellular calcium homeostasis, which is one of the most important components of cell signaling in all branches of the phylogenetic ...
E. V. Lychkovskaya, A. N. Shuvaev, G. E. Gercog, L. V. Trufanova, L. B. Shadrina, A. A. Semenchukov, A. B. Salmina   +6 more
doaj   +1 more source

Characterisation of the Mesial Root and Middle Mesial Canal Morphology in Mandibular First Molars: An Ex Vivo Micro‐CT Study

Australian Endodontic Journal, Volume 52, Issue 2, Page 364-380, August 2026.
ABSTRACT This ex vivo study characterised the mesial root morphology of mandibular first molars with a middle mesial canal (MMC) using micro‐CT. Among 469 scanned molars, 42 (8.96%) presented an MMC. Morphological parameters analysed included canal configuration, chamber orifice features, dentine thickness, isthmus type, and aspect ratio.
Nuno Rodrigues dos Santos, Jorge N. R. Martins, Mário Rito Pereira, António Ginjeira   +3 more
wiley   +1 more source

Nuclear factor of activated T cells as a driver of tumor progression and a target for precision therapy

Animal Models and Experimental Medicine, Volume 9, Issue 7, Page 1338-1352, July 2026.
Overview illustration of dysregulated NFAT activation coordinating upstream signaling, post‐translational regulation and cancer promoting pathways to induce abnormal gene expression that drives tumor development, progression and immune escape. Abstract The Nuclear Factor of Activated T Cells (NFAT) family comprises closely related transcription factors.
Hira Khan, Khushbakhat Alia, Yusra Al Dhaheri, Muhammad Naseem, Rabah Iratni, Edgar Serfling, Khalid Muhammad   +6 more
wiley   +1 more source

Anticoagulantes orais

, 2015
Os anticoagulantes orais são amplamente utilizados na prevenção e tratamento de doenças tromboembólicas, incluindo o tratamento da trombose venosa profunda (TVP) e o embolismo pulmonar (EP), e a prevenção dos acidentes vasculares cerebrais na fibrilhação auricular (FA).
openaire   +2 more sources

Functional Role of Piezo1 in Regulating Whole‐Lung Vascular Reactivity

Pulmonary Circulation, Volume 16, Issue 3, July 2026.
ABSTRACT Mechanosensitive cation channels expressed in pulmonary arterial smooth muscle (SMC) and endothelial (EC) cells contribute to the regulation of vasoconstriction and vasodilation of the pulmonary vasculature. Here, we report that activating Piezo1, a mechanosensitive cation channel, with Yoda1 induced a mild increase in pulmonary arterial ...
Sophia Parmisano, Jiyuan Chen, Yuqin Chen, Pritesh P. Jain, Lauren Yung, Wei‐Ting Wang, Ting Wang, Xiang Li, Angela Balistrieri, Sophia A. Ferrizzi, Cassia Pedron, Owen Brooks, Mona Alotaibi, Jian Wang, Joe G.N. Garcia, Patricia A. Thistlethwaite, Ayako Makino, Jason X.‐J. Yuan   +17 more
wiley   +1 more source

Endoplasmic Reticulum Geometry Dictates Neuronal Bursting via Calcium Store Refill Rates and Exposes Selective Neuronal Vulnerability

Advanced Science, Volume 13, Issue 36, 29 June 2026.
The ER's continuous tubular network is maintained by ER‐shaping proteins whose mutation or dysregulation contributes to neurodegenerative diseases. Here, we show that ER morphology sets the speed of Ca2+ store replenishment between firing events. Disrupting ER continuity slows intra‐ER Ca2+ redistribution from extracellular refill (SOCE) sites, driving
Valentina Davi, Pierre Parutto, Yuyi Zhang, Tasuku Konno, Cecile Crapart, Raquel Pereira, John P. Franklin, Mosab Ali Awadelkareem, Daniel C Maddison, Michael J. Devine, Edgar R. Gomes, Joseph Chambers, Elena Koslover, Edward Avezov   +13 more
wiley   +1 more source

STIM1-mediated bidirectional regulation of Ca2+ entry through Voltage-Gated Calcium Channels (VGCC) and Calcium-Release Activated Channels (CRAC)

Frontiers in Cellular Neuroscience, 2014
The spatial and temporal regulation of cellular calcium signals is modulated via two main Ca2+ entry routes. Voltage-gated Ca2+ channels (VGCC) and Ca2+-release activated channels (CRAC) enable Ca2+ flow into electrically excitable and non-excitable ...
Osama F. Harraz, Osama F. Harraz, Christophe eAltier   +2 more
doaj   +1 more source

The Role and Therapeutic Potential of Voltage‐Gated Potassium Channel Kv1.3 in Metabolism‐Related Disorders

iNew Medicine, Volume 2, Issue 2, June 2026.
ABSTRACT Over the past three decades, the global burden of common metabolic diseases such as obesity, diabetes, and atherosclerosis has steadily increased, becoming a serious public health issue that poses a major threat to human health worldwide. Potassium channels, particularly the voltage‐gated Kv1.3 subtype, serve as critical regulators of cellular
Wenjun Zhen, Junda Liu, Xixi Chen, Shi Chen, Yuanyuan Tian, Baoming Wu, Fengxia Yan   +6 more
wiley   +1 more source

Gating and permeation of Orai channels

Frontiers in Bioscience, 2012
Ca2+ release-activated Ca2+ channels mediate a sustained Ca2+ influx following depletion of endoplasmic reticulum stores. This signalling cascade that triggers T-cell activation or mast cell degranulation involves STIM1, the Ca2+ sensor in the endoplasmic reticulum, and the Ca2+ selective Orai channel in the plasma membrane.
Isabella, Derler, Rainer, Schindl, Reinhard, Fritsch, Christoph, Romanin   +3 more
openaire   +2 more sources