Results 21 to 30 of about 49,122 (245)

Molecular basis for gating of cardiac ryanodine receptor explains the mechanisms for gain- and loss-of function mutations

Nature Communications, 2022
Ryanodine receptor 2 (RyR2) is a Ca2+ release channel essential for cardiac excitation-contraction coupling. Here, the authors use structural and functional analysis to reveal RyR2 gating mechanism and its alterations by pathogenic mutations.
Takuya Kobayashi, Akihisa Tsutsumi, Nagomi Kurebayashi, Kei Saito, Masami Kodama, Takashi Sakurai, Masahide Kikkawa, Takashi Murayama, Haruo Ogawa   +8 more
doaj   +1 more source

Cell Deformation at the Air-Liquid Interface Evokes Intracellular Ca2+ Increase and ATP Release in Cultured Rat Urothelial Cells

Frontiers in Physiology, 2021
Urothelial cells have been implicated in bladder mechanosensory transduction, and thus, initiation of the micturition reflex. Cell deformation caused by tension forces at an air-liquid interface (ALI) can induce an increase in intracellular Ca2 ...
Jiliang Wen, Jiliang Wen, Zhenghao Chen, Mengmeng Zhao, Shulu Zu, Shengtian Zhao, Shaoyong Wang, Xiulin Zhang   +7 more
doaj   +1 more source

RyR1-targeted drug discovery pipeline integrating FRET-based high-throughput screening and human myofiber dynamic Ca2+ assays. [PDF]

, 2020
Elevated cytoplasmic [Ca2+] is characteristic in severe skeletal and cardiac myopathies, diabetes, and neurodegeneration, and partly results from increased Ca2+ leak from sarcoplasmic reticulum stores via dysregulated ryanodine receptor (RyR) channels ...
Bers, Donald M, Cornea, Razvan L, Janicek, Kevyn A, Launikonis, Bradley S, Rebbeck, Robyn T, Singh, Daniel P, Thomas, David D   +6 more
core   +2 more sources

Type 2 ryanodine receptors are highly sensitive to alcohol [PDF]

FEBS Letters, 2014
Exposure to ethanol levels reached in circulation during alcohol intoxication (10 mM) constricts cerebral arteries in rats and humans. Remarkably, targets and mechanisms underlying this action remain largely unidentified. Artery diameter is regulated by myocyte Ca2+sparks, a vasodilatory signal contributed to by type 2 ryanodine receptors (RyR2). Using
Ye, Yanping, Jian, Kuihuan, Jaggar, Jonathan H., Bukiya, Anna N., Dopico, Alex M.   +4 more
openaire   +2 more sources

Calcium Homeostasis in Myogenic Differentiation Factor 1 (MyoD)-Transformed, Virally-Transduced, Skin-Derived Equine Myotubes [PDF]

, 2014
Dysfunctional skeletal muscle calcium homeostasis plays a central role in the pathophysiology of several human and animal skeletal muscle disorders, in particular, genetic disorders associated with ryanodine receptor 1 (RYR1) mutations, such as malignant
A Hovnanian, A Klein, A Margreth, Atsushi Asakura, C Drogemuller, Cesare M. Terracciano, CM Isgren, DR Laver, E Zvaritch, EC McKenzie, EC McKenzie, F Ghassemi, FL Cole, G Avila, G Cherednichenko, Georges Vassaux, GG Harrison, GL Walmsley, H Gissel, H Jungbluth, H Weintraub, H Zhou, H Zhou, H Zhou, HK DiMaio Knych, J Choi, J Fujii, J Garcia, J Huang, J Larsen, J Ma, J Tong, JM Eltit, JM Eltit, JM Healy, JM MacLeay, JR Lopez, JR Lopez, JR Mickelson, K Anderson, K Jurkat-Rott, KP Glahn, L Csernoch, L Lattanzi, LR Lentz, M Aleman, M Fernandez-Fuente, M Fernandez-Fuente, MA Denborough, Marta Fernandez-Fuente, MC Roberts, MG Larach, MH Court, MJ Hull, MM Upjohn, N Dlamini, N Tilgen, NC Voermans, NM Burton, Pilar Martin-Duque, PJ Lynch, PK Dranchak, R Yasin, RA Bannister, RA Bannister, Richard J. Piercy, S Ducreux, S Gyorke, S Hollingworth, Susan C. Brown, T Abe, T Yang, TB Rogers, TC He, TV McCarthy, X Zhao   +75 more
core   +6 more sources

“Ryanopathies” and RyR2 dysfunctions: can we further decipher them using in vitro human disease models?

Cell Death and Disease, 2021
The regulation of intracellular calcium (Ca2+) homeostasis is fundamental to maintain normal functions in many cell types. The ryanodine receptor (RyR), the largest intracellular calcium release channel located on the sarco/endoplasmic reticulum (SR/ER),
Yvonne Sleiman, Alain Lacampagne, Albano C. Meli   +2 more
doaj   +1 more source

Basal ryanodine receptor activity suppresses autophagic flux [PDF]

, 2017
The inositol 1,4,5-trisphosphate receptors (IP3Rs) and intracellular Ca2+ signaling are critically involved in regulating different steps of autophagy, a lysosomal degradation pathway.
Bannai, Hiroko, Bootman, Martin D., Bultynck, Geert, Martinet, Wim, Mikoshiba, Katsuhiko, Nadif Kasri, Nael, Parys, Jan B., Pintelon, Isabel, Vervliet, Tim, Welkenhuyzen, Kirsten   +9 more
core   +2 more sources

Regulation of Ryanodine Receptor–Mediated Ca2+ Release in Vas Deferens Smooth Muscle Cells

Journal of Pharmacological Sciences, 2009
.: Ca2+ release from intracellular store sites via the ryanodine receptor (RyR) and hormonal regulation by flutamide, an androgen-receptor (AR) antagonist, on it were examined in vas deferens (VD) smooth muscle cells (SMCs).
Akitoshi Ohno, Susumu Ohya, Hisao Yamamura, Yuji Imaizumi   +3 more
doaj   +1 more source

Gene Transfer of Engineered Calmodulin Alleviates Ventricular Arrhythmias in a Calsequestrin-Associated Mouse Model of Catecholaminergic Polymorphic Ventricular Tachycardia [PDF]

, 2018
Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a familial arrhythmogenic syndrome characterized by sudden death. There are several genetic forms of CPVT associated with mutations in genes encoding the cardiac ryanodine receptor (RyR2 ...
Belevych, Andriy E, Bonilla, Ingrid, Davis, Jonathan P, Gy\uf6rke, S\ue1ndor, Ho, Hsiang-Ting, Knollmann, Bjorn C, Liu, Bin, Priori, Silvia G, Radwa\u144ski, Przemys\u142aw B, Shettigar, Vikram, Tikunova, Svetlana B, Volpe, Pompeo, Walton, Shane D   +12 more
core   +1 more source

Regulation of ryanodine receptor-dependent calcium signaling by polycystin-2 [PDF]

Proceedings of the National Academy of Sciences, 2007
Mutations in polycystin-2 (PC2) cause autosomal dominant polycystic kidney disease. A function for PC2 in the heart has not been described. Here, we show that PC2 coimmunoprecipitates with the cardiac ryanodine receptor (RyR2) from mouse heart.
Georgia I, Anyatonwu, Manuel, Estrada, Xin, Tian, Stefan, Somlo, Barbara E, Ehrlich   +4 more
openaire   +2 more sources