Pharmacological Inhibitors of TRPV4 Channels Reduce Cytokine Production, Restore Endothelial Function and Increase Survival in Septic Mice
Affiliations
Sepsis is characterized by systemic inflammation, edema formation and hypo-perfusion leading to organ dysfunction and ultimately death. Activation of the transient receptor potential vanilloid type 4 (TRPV4) channel is associated with edema formation and circulatory collapse. Here, we show that TRPV4 channels are involved in the hyper-inflammatory response and mortality associated with sepsis. Pharmacological inhibition of TRPV4 channels in mice reduced mortality in lipopolysaccharide and cecal-ligation-and-puncture models of sepsis, but not in a tumor necrosis factor-α (TNFα)-induced sepsis model. These protective effects of TRPV4 channel inhibition were attributable to prevention of the sepsis-induced surge of a broad spectrum of pro-inflammatory cytokines, including TNFα, interleukin (IL)-1 and IL-6, and subsequent preservation of endothelial cell function, including Ca signaling, integrity and endothelium-dependent vasodilation. These results suggest that TRPV4 antagonists may be of therapeutic utility in the management of sepsis.
Synergetic role of TRPV4 inhibitor and mechanical loading on reducing inflammation.
Babaniamansour P, Jacho D, Rabino A, Garcia-Mata R, Yildirim-Ayan E Front Immunol. 2025; 15:1456042.
PMID: 39850885 PMC: 11756524. DOI: 10.3389/fimmu.2024.1456042.
The Role of the TRPV4 Channel in Intestinal Physiology and Pathology.
Liu D, Mao M, Liu W, Xie L, Zhong X, Cao W J Inflamm Res. 2024; 17:9307-9317.
PMID: 39588136 PMC: 11587805. DOI: 10.2147/JIR.S483350.
Xu Y, Qu X, Liang M, Huang D, Jin M, Sun L Front Med (Lausanne). 2024; 11:1457882.
PMID: 39355841 PMC: 11442327. DOI: 10.3389/fmed.2024.1457882.
TRPV4 Channel in Neurological Disease: from Molecular Mechanisms to Therapeutic Potential.
Zhang F, Mehta H, Choudhary H, Islam R, Hanafy K Mol Neurobiol. 2024; 62(3):3877-3891.
PMID: 39333347 PMC: 11790740. DOI: 10.1007/s12035-024-04518-5.
The Role of TRP Channels in Sepsis and Colitis.
Dvornikova K, Platonova O, Bystrova E Int J Mol Sci. 2024; 25(9).
PMID: 38731999 PMC: 11084600. DOI: 10.3390/ijms25094784.