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Rajan, Suhasini; Schremmer, Christian; Weber, Jonas; Alt, Philipp; Geiger, Fabienne and Dietrich, Alexander (2021): Ca2+ Signaling by TRPV4 Channels in Respiratory Function and Disease. In: Cells, Vol. 10, No. 4, 822

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Members of the transient receptor potential (TRP) superfamily are broadly expressed in our body and contribute to multiple cellular functions. Most interestingly, the fourth member of the vanilloid family of TRP channels (TRPV4) serves different partially antagonistic functions in the respiratory system. This review highlights the role of TRPV4 channels in lung fibroblasts, the lung endothelium, as well as the alveolar and bronchial epithelium, during physiological and pathophysiological mechanisms. Data available from animal models and human tissues confirm the importance of this ion channel in cellular signal transduction complexes with Ca2+ ions as a second messenger. Moreover, TRPV4 is an excellent therapeutic target with numerous specific compounds regulating its activity in diseases, like asthma, lung fibrosis, edema, and infections.

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