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501283 occurrences (No.27 in the rank) during 5 years in the PubMed. [cache]

391) This study shows that TRPV3, an ion channel, is involved in coordinating repair through integrated repair signaling pathways, wherein TRPV3 expression is upregulated immediately after injury and returns to basal levels as cells complete the repair process.

--- ABSTRACT ---

PMID:34290137 DOI:10.1124/molpharm.121.000280

2021 Molecular pharmacology

* Dynamic Expression of Transient Receptor Potential Vanilloid-3 and Integrated Signaling with Growth Factor Pathways during Lung Epithelial Wound Repair following Wood Smoke Particle and Other Forms of Lung Cell Injury.

- Prior studies revealed increased expression of the transient receptor potential vanilloid-3 (TRPV3) ion channel after wood smoke particulate matter (WSPM) treatment of human bronchial epithelial cells (HBECs). TRPV3 attenuated pathologic endoplasmic reticulum stress and cytotoxicity mediated by transient receptor potential ankyrin-1. Here, the basis for how TRPV3 expression is regulated by cell injury and the effects this has on HBEC physiology and WSPM-induced airway remodeling in mice was investigated. TRPV3 mRNA was rapidly increased in HBECs treated with WSPM and after monolayer damage caused by tryptic disruption, scratch wounding, and cell passaging. TRPV3 mRNA abundance varied with time, and stimulated expression occurred independent of new protein synthesis. Overexpression of TRPV3 in HBECs reduced cell migration and wound repair while enhancing cell adhesion. This phenotype correlated with disrupted mRNA expression of ligands of the epidermal growth factor, tumor growth factor-β, and frizzled receptors. Accordingly, delayed wound repair by TRPV3 overexpressing cells was reversed by growth factor supplementation. In normal HBECs, TRPV3 upregulation was triggered by exogenous growth factor supplementation and was attenuated by inhibitors of growth factor receptor signaling. In mice, subacute oropharyngeal instillation with WSPM also promoted TRPV3 mRNA expression and epithelial remodeling, which was attenuated by TRPV3 antagonist pre- and cotreatment. This latter effect may be the consequence of antagonist-induced TRPV3 expression. These findings provide insights into the roles of TRPV3 in lung epithelial cells under basal and dynamic states, as well as highlight potential roles for TRPV3 ligands in modulating epithelial damage/repair. SIGNIFICANCE STATEMENT: Coordinated epithelial repair is essential for the maintenance of the airways, with deficiencies and exaggerated repair associated with adverse consequences to respiratory health. This study shows that TRPV3, an ion channel, is involved in coordinating repair through integrated repair signaling pathways, wherein TRPV3 expression is upregulated immediately after injury and returns to basal levels as cells complete the repair process. TRPV3 may be a novel target for understanding and/or treating conditions in which airway/lung epithelial repair is not properly orchestrated.

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--- WordNet output for levels --- Overview of noun level The noun level has 8 senses (first 6 from tagged texts) 1. (69) degree, grade, level -- (a position on a scale of intensity or amount or quality; "a moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree") 2. (22) grade, level, tier -- (a relative position or degree of value in a graded group; "lumber of the highest grade") 3. (15) degree, level, stage, point -- (a specific identifiable position in a continuum or series or especially in a process; "a remarkable degree of frankness"; "at what stage are the social sciences?") 4. (5) level -- (height above ground; "the water reached ankle level"; "the pictures were at the same level") 5. (1) level, spirit level -- (indicator that establishes the horizontal when a bubble is centered in a tube of liquid) 6. (1) horizontal surface, level -- (a flat surface at right angles to a plumb line; "park the car on the level") 7. level, layer, stratum -- (an abstract place usually conceived as having depth; "a good actor communicates on several levels"; "a simile has at least two layers of meaning"; "the mind functions on many strata simultaneously") 8. floor, level, storey, story -- (a structure consisting of a room or set of rooms at a single position along a vertical scale; "what level is the office on?") Overview of verb level The verb level has 6 senses (first 3 from tagged texts) 1. (4) level -- (aim at; "level criticism or charges at somebody") 2. (1) level, raze, rase, dismantle, tear down, take down, pull down -- (tear down so as to make flat with the ground; "The building was levelled") 3. (1) flush, level, even out, even -- (make level or straight; "level the ground") 4. charge, level, point -- (direct into a position for use; "point a gun"; "He charged his weapon at me") 5. level -- (talk frankly with; lay it on the line; "I have to level with you") 6. level, level off -- (become level or even; "The ground levelled off") --- WordNet end ---