TRPV4: a Sensor for Homeostasis and Pathological Events in the CNS

Hemant Kumar, Soo Hong Lee, Kyoung Tae Kim, Xiang Zeng, Inbo Han

Research output: Contribution to journalReview articlepeer-review

36 Scopus citations

Abstract

Transient receptor potential vanilloid type 4 (TRPV4) was originally described as a calcium-permeable nonselective cation channel. TRPV4 is now recognized as a polymodal ionotropic receptor: it is a broadly expressed, nonselective cation channel (permeable to calcium, potassium, magnesium, and sodium) that plays an important role in a multitude of physiological processes. TRPV4 is involved in maintaining homeostasis, serves as an osmosensor and thermosensor, can be activated directly by endogenous or exogenous chemical stimuli, and can be activated or sensitized indirectly via intracellular signaling pathways. Additionally, TRPV4 is upregulated in a variety of pathological conditions. In this review, we focus on the role of TRPV4 in mediating homeostasis and pathological events in the central nervous system (CNS). This review is composed of three parts. Section 1 describes the role of TRPV4 in maintaining homeostatic processes, including the volume of body water, ionic concentrations, volume, and the temperature. Section 2 describes the effects of activation and inhibition of TRPV4 in the CNS. Section 3 focuses on the role of TRPV4 during pathological events in CNS.

Original languageEnglish
Pages (from-to)8695-8708
Number of pages14
JournalMolecular Neurobiology
Volume55
Issue number11
DOIs
StatePublished - 1 Nov 2018

Keywords

  • Calcium signaling
  • CNS
  • Glia
  • Homeostasis
  • Osmosensor
  • Thermosensor
  • TRPV4

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