Role of membrane-tension gated Ca flux in cell mechanosensation
نویسندگان
چکیده
منابع مشابه
Voltage-gated calcium flux mediates Escherichia coli mechanosensation.
Electrically excitable cells harness voltage-coupled calcium influx to transmit intracellular signals, typically studied in neurons and cardiomyocytes. Despite intense study in higher organisms, investigations of voltage and calcium signaling in bacteria have lagged due to their small size and a lack of sensitive tools. Only recently were bacteria shown to modulate their membrane potential on t...
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15 صفحه اولA decrease in membrane tension precedes successful cell-membrane repair.
We hypothesized that the requirement for Ca(2+)-dependent exocytosis in cell-membrane repair is to provide an adequate lowering of membrane tension to permit membrane resealing. We used laser tweezers to form membrane tethers and measured the force of those tethers to estimate the membrane tension of Swiss 3T3 fibroblasts after membrane disruption and during resealing. These measurements show t...
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Using a novel noncontact technique based on optical interferometry, we quantify the nanoscale thermal fluctuations of red blood cells (RBCs) and giant unilamellar vesicles (GUVs). The measurements reveal a nonvanishing tension coefficient for RBCs, which increases as cells transition from a discocytic shape to a spherical shape. The tension coefficient measured for GUVs is, however, a factor of...
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ژورنال
عنوان ژورنال: Journal of Cell Science
سال: 2018
ISSN: 1477-9137,0021-9533
DOI: 10.1242/jcs.208470