A mechanism distinct from the L-type Ca current or Na–Ca exchange contributes to Ca entry in rat ventricular myocytes

Bers, 2001 Coulombe, 1989, Barium- and calcium-permeable channels open at negative membrane potentials in rat ventricular myocytes, J. Membr. Biol., 111, 57, 10.1007/BF01869209 Lefevre, 1995, Divalent cation channels activated by phenothiazines in membrane of rat ventricular myocytes, J. Membr. Biol., 147, 147, 10.1007/BF00233543 Antoine, 2001, Are B-type Ca2+ channels of cardiac myocytes akin to the passive ion channel in the plasma membrane Ca2+ pump?, J. Membr. Biol., 179, 37, 10.1007/s002320010035 Pinet, 2002, Reincorporated plasma membrane Ca2+-ATPase can mediate B-type Ca2+ channels observed in native membrane of human red blood cells, J. Membr. Biol., 187, 185, 10.1007/s00232-001-0163-5 Hu, 1997, Stretch-activated ion channels in the heart, J. Mol. Cell. Cardiol., 29, 1511, 10.1006/jmcc.1997.0392 Sasaki, 1992, Effects of mechanical stretch on membrane currents of single ventricular myocytes of guinea-pig heart, Jpn. J. Physiol., 42, 957, 10.2170/jjphysiol.42.957 Uehara, 2002, Store-operated Ca2+ entry uncoupled with ryanodine receptor and junctional membrane complex in heart muscle cells, Cell Calcium, 31, 89, 10.1054/ceca.2001.0257 Clapham, 2003, TRP channels as cellular sensors, Nature, 426, 517, 10.1038/nature02196 Runnels, 2002, The TRPM7 channel is inactivated by PIP(2) hydrolysis, Nat. Cell Biol., 4, 329, 10.1038/ncb781 Eisner, 1989, The effects of metabolic inhibition on intracellular calcium and pH in isolated rat ventricular cells, J. Physiol. (Lond), 411, 393, 10.1113/jphysiol.1989.sp017580 Trafford, 2001, Coordinated control of cell Ca2+ loading and triggered release from the sarcoplasmic reticulum underlies the rapid inotropic response to increased L-type Ca2+ current, Circ. Res., 88, 195, 10.1161/01.RES.88.2.195 Trafford, 1999, A novel, rapid and reversible method to measure Ca buffering and timecourse of total sarcoplasmic reticulum Ca content in cardiac ventricular myocytes, Pflügers Arch., 437, 501, 10.1007/s004240050808 Lee, 1999, Nickel block of three cloned T-type calcium channels: low concentrations selectively block alpha1H, Biophys. J., 77, 3034, 10.1016/S0006-3495(99)77134-1 Hecker, 1994, Characterization of endothelium-derived hyperpolarizing factor as a cytochrome P450-derived arachidonic acid metabolite in mammals, J. Physiol. (Lond), 481, 407, 10.1113/jphysiol.1994.sp020449 Prakriya, 2001, Potentiation and inhibition of Ca2+ release-activated Ca2+ channels by 2-aminoethyldiphenyl borate (2-APB) occurs independently of IP3 receptors, J. Physiol. (Lond), 536, 3, 10.1111/j.1469-7793.2001.t01-1-00003.x Diver, 2001, The inositol trisphosphate receptor antagonist 2-aminoethoxydiphenylborate (2-APB) blocks Ca2+ entry channels in human platelets: cautions for its use in studying Ca2+ influx, Cell Calcium, 30, 323, 10.1054/ceca.2001.0239 Li, 2001, Modulation of cardiac Na+ current by gadolinium, a blocker of stretch-induced arrhythmias, Am. J. Physiol. Heart Circ. Physiol., 280, H272, 10.1152/ajpheart.2001.280.1.H272 Litwin, 1998, Na–Ca exchange and the trigger for sarcoplasmic reticulum Ca release: studies in adult rabbit ventricular myocytes, Biophys. J., 75, 359, 10.1016/S0006-3495(98)77520-4 Sipido, 1997, Low efficiency of Ca2+ entry through the Na+–Ca2+ exchanger as trigger for Ca2+ release from the sarcoplasmic reticulum, Circ. Res., 81, 1034, 10.1161/01.RES.81.6.1034 Cannell, 1986, Effects of membrane potential on intracellular calcium concentration in sheep Purkinje fibres in sodium-free solutions, J. Physiol. (Lond), 381, 193, 10.1113/jphysiol.1986.sp016322 Lefevre, 1994, Tonically active (background) calcium channels unmasked by phenothiazines in rat ventricular myocytes, Biophys. J., 66, a321 Park, 2002, Hyperpolarization, but not depolarization, increases intracellular Ca2+ level in cultured chick myoblasts, Biochem. Biophys. Res. Commun., 290, 1176, 10.1006/bbrc.2001.6323 Riccio, 2002, Cloning and functional expression of human short TRP7, a candidate protein for store-operated Ca2+ influx, J. Biol. Chem., 277, 12302, 10.1074/jbc.M112313200 Halaszovich, 2000, Inhibition of TRP3 channels by lanthanides. Block from the cytosolic side of the plasma membrane, J. Biol. Chem., 275, 37423, 10.1074/jbc.M007010200