ArticleBladder (San Francisco, Calif.)2025
Connexins 43 and 45 hemichannels mediate ATP release in the urinary bladder.
Article in Bladder (San Francisco, Calif.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Next-generation oncology: integrative therapeutic frontiers at the crossroads of precision genomics, immuno-engineering, and tumor microenvironment modulation.Medical oncology (Northwood, London, England) · 2025Review
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Background: Connexin (Cx) proteins form gap junctions between adjacent cells to facilitate intercellular communication and also assemble into hemichannels that release small molecules, including adenosine triphosphate (ATP), into the extracellular microenvironment, where ATP acts on purinergic receptors. Objective: This study investigated the roles of Cx43 and Cx45 as ATP release channels in the urinary bladder. Methods: Porcine bladder tissues and cultured cells were stained for Cx43 and Cx45 using immunofluorescence. Cx43- and Cx45-mediated ATP release in response to hypotonic stretch and extracellular Ca Results: The expression of Cx43 and Cx45 was Immunohistochemically confirmed in porcine bladder tissue, cultured porcine bladder urothelial cells, suburothelial myofibroblasts, detrusor muscle cells, and the human urothelial RT4 cell line. Hypotonic stretch increased ATP release in all four cell types, with porcine urothelial cells exhibiting a 3.8 ± 1.3-fold and RT4 cells a 2.0 ± 0.5-fold increase relative to control levels. Similarly, depletion of extracellular calcium ions (Ca Conclusion: These findings highlighted ATP's role as an autocrine/paracrine signaling molecule acting on purinergic receptors during bladder distension and suggested that Cx hemichannels regulate ATP release through mechanotransduction and Ca
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