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Genomes and Genes | James W SmythSummaryAffiliation: University of California Country: USA Publications
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Publications
Forward trafficking of ion channels: what the clinician needs to knowJames W Smyth
Cardiovascular Research Institute and Department of Medicine, University of California San Francisco, San Francisco, California, USA
Heart Rhythm 7:1135-40. 2010..In this brief review, we provide an overview of the current understanding of the cellular biology governing the forward trafficking of ion channels...
Limited forward trafficking of connexin 43 reduces cell-cell coupling in stressed human and mouse myocardiumJames W Smyth
Cardiovascular Research Institute, Department of Medicine, University of California San Francisco, 505 Parnassus Avenue, San Francisco, CA 94143, USA
J Clin Invest 120:266-79. 2010..We anticipate that protecting the microtubule-based forward delivery apparatus of connexons could improve cell-cell coupling and reduce ischemia-related cardiac arrhythmias...
Visualizing cardiac ion channel trafficking pathwaysJames W Smyth
Cardiovascular Research Institute, University of California San Francisco, San Francisco, California, USA
Methods Enzymol 505:187-202. 2012..In this chapter, we discuss the structure of cardiomyocytes and their submembrane domains, the ion channels that we study, and the techniques that can be employed to visualize cardiac ion channel trafficking in real time...
Actin cytoskeleton rest stops regulate anterograde traffic of connexin 43 vesicles to the plasma membraneJames W Smyth
University of California San Francisco, Cardiovascular Research Institute, 555 Mission Bay Boulevard South, San Francisco, CA 94158, USA
Circ Res 110:978-89. 2012..Although it is known that Cx43 hemichannels are transported along microtubules to the plasma membrane, the role of actin in Cx43 forward trafficking is unknown...
BIN1 is reduced and Cav1.2 trafficking is impaired in human failing cardiomyocytesTing Ting Hong
Cardiovascular Research Institute, University of California, San Francisco, CA, USA
Heart Rhythm 9:812-20. 2012..2 channels at cardiac T tubules. Bridging integrator 1 (BIN1) is a membrane scaffolding protein that causes Cav1.2 to traffic to T tubules in healthy hearts. The mechanisms of Cav1.2 trafficking in heart failure are not known...
Iroquois homeobox gene 3 establishes fast conduction in the cardiac His-Purkinje networkShan Shan Zhang
Gladstone Institute of Cardiovascular Disease, San Francisco, CA 94158, USA
Proc Natl Acad Sci U S A 108:13576-81. 2011..Irx3 directly represses Cx43 transcription and indirectly activates Cx40 transcription. Our results reveal a critical role for Irx3 in the precise regulation of intercellular gap junction coupling and impulse propagation in the heart...
BIN1 localizes the L-type calcium channel to cardiac T-tubulesTing Ting Hong
Cardiovascular Research Institute, University of California San Francisco, San Francisco, California, USA
PLoS Biol 8:e1000312. 2010..2 delivery to T-tubules. This novel Cav1.2 trafficking pathway should serve as an important regulatory aspect of EC coupling, affecting cardiac contractility in mammalian hearts...
TGF-β-induced activation of mTOR complex 2 drives epithelial-mesenchymal transition and cell invasionSamy Lamouille
Department of Cell and Tissue Biology, University of California at San Francisco, San Francisco, CA 94143 0512, USA
J Cell Sci 125:1259-73. 2012..Our results suggest that the mTORC2 pathway is an essential downstream branch of TGF-β signaling, and represents a responsive target to inhibit EMT and prevent cancer cell invasion and metastasis...
Visualizing ion channel dynamics at the plasma membraneJames W Smyth
Cardiovascular Research Institute and Department of Medicine, University of California San Francisco, San Francisco, California, USA
Heart Rhythm 5:S7-11. 2008..With revolutionary advances in fluorescence microscopy, ion channel biologists are now entering a new realm of studying channel function, which is to understand the mechanisms of channel trafficking...
