Mechanical stretch promotes hypertrophic scar formation through mechanically activated cation channel Piezo1
نویسندگان
چکیده
منابع مشابه
Mechanical load initiates hypertrophic scar formation through decreased cellular apoptosis.
Hypertrophic scars occur following cutaneous wounding and result in severe functional and esthetic defects. The pathophysiology of this process remains unknown. Here, we demonstrate for the first time that mechanical stress applied to a healing wound is sufficient to produce hypertrophic scars in mice. The resulting scars are histopathologically identical to human hypertrophic scars and persist...
متن کاملGating the mechanical channel Piezo1
Piezo1 is a eukaryotic cation-selective mechanosensitive ion channel. To understand channel function in vivo, we first need to analyze and compare the response in the whole cell and the patch. In patches, Piezo1 inactivates and the current is fit well by a 3-state model with a single pressure-dependent rate. However, repeated stimulation led to an irreversible loss of inactivation. Remarkably, ...
متن کاملPiezo1 and Piezo2 are essential components of distinct mechanically activated cation channels.
Mechanical stimuli drive many physiological processes, including touch and pain sensation, hearing, and blood pressure regulation. Mechanically activated (MA) cation channel activities have been recorded in many cells, but the responsible molecules have not been identified. We characterized a rapidly adapting MA current in a mouse neuroblastoma cell line. Expression profiling and RNA interferen...
متن کاملStretch-activated cation channel from larval bullfrog skin.
Cell-attached patches from isolated epithelial cells from larval bullfrog skin revealed a cation channel that was activated by applying suction (-1 kPa to -4.5 kPa) to the pipette. Activation was characterized by an initial large current spike that rapidly attenuated to a stable value and showed a variable pattern of opening and closing with continuing suction. Current-voltage plots demonstrate...
متن کاملStretch-activated ion channel Piezo1 directs lineage choice in human neural stem cells.
Neural stem cells are multipotent cells with the ability to differentiate into neurons, astrocytes, and oligodendrocytes. Lineage specification is strongly sensitive to the mechanical properties of the cellular environment. However, molecular pathways transducing matrix mechanical cues to intracellular signaling pathways linked to lineage specification remain unclear. We found that the mechanic...
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ژورنال
عنوان ژورنال: Cell Death & Disease
سال: 2021
ISSN: 2041-4889
DOI: 10.1038/s41419-021-03481-6