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Transseptal BATMAN Procedure Utilizing a Simplified Technique: "Single Wire Approach for Traversing Tissue" (SWATT).
Catheter Cardiovasc Interv
January 2025
The Christ Hospital Heart and Vascular Institute, Cincinnati, Ohio, USA.
One of the major issues encountered in patients undergoing evaluation for Transcatheter mitral valve replacement (TMVR) is the risk of Left ventricular outflow tract (LVOT) obstruction. LVOT obstruction is a catastrophic complication of TMVR, the result of displacement of the anterior mitral valve leaflet (AML) toward the interventricular septum. Several strategies to mitigate the risk of LVOT obstruction have been described and include percutaneous laceration of the anterior mitral leaflet (LAMPOON), alcohol septal ablation, trans-atrial leaflet modification (SITRAL) and Balloon Assisted Translocation of Mitral Anterior leaflet to prevent LVOT obstruction (BATMAN).
View Article and Find Full Text PDFSNARE-Mediated Membrane Fusion Probed Using a Synthetic Organelle in the Living Bacterium.
Methods Mol Biol
January 2025
Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France.
Studies on the mechanisms and regulation of functional assemblies of SNARE proteins mediating membrane fusion essentially make use of recombinant proteins and artificial phospholipid bilayers. We have developed an easy-to-use in vivo system reconstituting membrane fusion in living bacteria. It relies on the formation of caveolin-dependent intracytoplasmic cisternae followed by the controlled synthesis of members of the synaptic SNARE machinery.
View Article and Find Full Text PDFMechanistic Insights into Synaptotagmin-1 Mediated Membrane Fusion and Interactions.
Methods Mol Biol
January 2025
Institute of Physical Chemistry, University of Göttingen, Göttingen, Germany.
We present two innovative approaches to investigate the dynamics of membrane fusion and the strength of protein-membrane interactions. The first approach employs pore-spanning membranes (PSMs), which allow for the observation of protein-assisted fusion processes. The second approach utilizes colloidal probe microscopy with membrane-coated probes with reconstituted proteins.
View Article and Find Full Text PDFAssays of Platelet SNARE-actin Interactions.
Methods Mol Biol
January 2025
Division of Hemostasis and Thrombosis, Department of Medicine, BIDMC, Harvard Medical School, Boston, MA, USA.
The actin cytoskeleton serves an important, but poorly characterized, role in controlling granule exocytosis. The dynamic nature of actin remodeling allows it to act both as a barrier to prevent indiscriminate granule release and as a facilitator of membrane fusion. In its capacity to promote exocytosis, filamentous actin binds to components of the exocytotic machinery through actin binding proteins, but also through direct interactions with SNAREs.
View Article and Find Full Text PDFUse of Bio-Layer Interferometry (BLI) to Measure Binding Affinities of SNAREs and Phosphoinositides.
Methods Mol Biol
January 2025
Dept of Biochemistry & Center for Biophysics and Quantitative Biology, University of Illinois Urbana-Champaign, Urbana, IL, USA.
Bio-Layer Interferometry (BLI) is a technique that uses optical biosensing to analyze interactions between molecules. The analysis of molecular interactions is measured in real-time and does not require fluorescent tags. BLI uses disposable biosensors that come in a variety of formats to bind different ligands including biotin, hexahistidine, GST, and the Fc portion of antibodies.
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