Microglial voltage-gated proton channel Hv1 in spinal cord injury

After spinal cord injury, microglia as the first responders to the lesion display both beneficial and detrimental characteristics. Activated microglia phagocyte and eliminate cell debris, release cytokines to recruit peripheral immune cells to the injury site. Excessively activated microglia can aggravate the secondary damage by producing extravagant reactive oxygen species and pro-inflammatory cytokines. Recent studies demonstrated that the voltage-gated proton channel Hv1 is selectively expressed in microglia and regulates microglial activation upon injury. In mouse models of spinal cord injury, Hv1 deficiency ameliorates microglia activation, resulting in alleviated production of reactive oxygen species and pro-inflammatory cytokines. The reduced secondary damage subsequently decreases neuronal loss and correlates with improved locomotor recovery. This review provides a brief historical perspective of advances in investigating voltage-gated proton channel Hv1 and home in on microglial Hv1. We discuss recent studies on the roles of Hv1 activation in pathophysiological activities of microglia, such as production of NOX-dependent reactive oxygen species, microglia polarization, and tissue acidosis, particularly in the context of spinal cord injury. Further, we highlight the rationale for targeting Hv1 for the treatment of spinal cord injury and related disorders.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:17

Enthalten in:

Neural regeneration research - 17(2022), 6 vom: 13. Juni, Seite 1183-1189

Sprache:

Englisch

Beteiligte Personen:

Zheng, Jiaying [VerfasserIn]
Murugan, Madhuvika [VerfasserIn]
Wang, Lingxiao [VerfasserIn]
Wu, Long-Jun [VerfasserIn]

Links:

Volltext

Themen:

Hv1 proton channel
Ion channels
Journal Article
Microglia
NADPH oxidase
PH regulation
Reactive oxygen species
Review
Spinal cord injury

Anmerkungen:

Date Revised 08.11.2023

published: Print

Citation Status PubMed-not-MEDLINE

doi:

10.4103/1673-5374.327325

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM333202872