Kinesin family member 2A gates nociception.
CP: Neuroscience
Kif2a
axonal degeneration
microtubules
nociception
Journal
Cell reports
ISSN: 2211-1247
Titre abrégé: Cell Rep
Pays: United States
ID NLM: 101573691
Informations de publication
Date de publication:
31 10 2023
31 10 2023
Historique:
received:
23
03
2023
revised:
23
08
2023
accepted:
27
09
2023
medline:
6
11
2023
pubmed:
18
10
2023
entrez:
18
10
2023
Statut:
ppublish
Résumé
Nociceptive axons undergo remodeling as they innervate their targets during development and in response to environmental insults and pathological conditions. How is nociceptive morphogenesis regulated? Here, we show that the microtubule destabilizer kinesin family member 2A (Kif2a) is a key regulator of nociceptive terminal structures and pain sensitivity. Ablation of Kif2a in sensory neurons causes hyperinnervation and hypersensitivity to noxious stimuli in young adult mice, whereas touch sensitivity and proprioception remain unaffected. Computational modeling predicts that structural remodeling is sufficient to explain the phenotypes. Furthermore, Kif2a deficiency triggers a transcriptional response comprising sustained upregulation of injury-related genes and homeostatic downregulation of highly specific channels and receptors at the late stage. The latter effect can be predicted to relieve the hyperexcitability of nociceptive neurons, despite persisting morphological aberrations, and indeed correlates with the resolution of pain hypersensitivity. Overall, we reveal a critical control node defining nociceptive terminal structure, which is regulating nociception.
Identifiants
pubmed: 37851573
pii: S2211-1247(23)01269-X
doi: 10.1016/j.celrep.2023.113257
pii:
doi:
Substances chimiques
Kinesins
EC 3.6.4.4
Repressor Proteins
0
KIF2A protein, mouse
EC 3.6.1.-
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
113257Informations de copyright
Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests The authors declare no competing interests.