Inhibition of focal adhesion kinase increases adult olfactory stem cell self-renewal and neuroregeneration through ciliary neurotrophic factor.
Basal cell proliferation
Neuronal differentiation
Neuroregeneration
Olfactory function
Olfactory stem cell
Journal
Stem cell research
ISSN: 1876-7753
Titre abrégé: Stem Cell Res
Pays: England
ID NLM: 101316957
Informations de publication
Date de publication:
12 2020
12 2020
Historique:
received:
19
06
2020
revised:
12
10
2020
accepted:
20
10
2020
pubmed:
2
11
2020
medline:
22
6
2021
entrez:
1
11
2020
Statut:
ppublish
Résumé
Constant neuroregeneration in adult olfactory epithelium maintains olfactory function by basal stem cell proliferation and differentiation to replace lost olfactory sensory neurons (OSNs). Understanding the mechanisms regulating this process could reveal potential therapeutic targets for stimulating adult olfactory neurogenesis under pathological conditions and aging. Ciliary neurotrophic factor (CNTF) in astrocytes promotes forebrain neurogenesis but its function in the olfactory system is unknown. Here, we show in mouse olfactory epithelium that CNTF is expressed in horizontal basal cells, olfactory ensheathing cells (OECs) and a small subpopulation of OSNs. CNTF receptor alpha was expressed in Mash1-positive globose basal cells (GBCs) and OECs. Thus, CNTF may affect GBCs in a paracrine manner. CNTF-/- mice did not display altered GBC proliferation or olfactory function, suggesting that CNTF is not involved in basal olfactory renewal or that they developed compensatory mechanisms. Therefore, we tested the effect of increased CNTF in wild type mice. Intranasal instillation of a focal adhesion kinase (FAK) inhibitor, FAK14, upregulated CNTF expression. FAK14 also promoted GBC proliferation, neuronal differentiation and basal stem cell self-renewal but had no effective in CNTF-/- mice, suggesting that FAK inhibition promotes olfactory neuroregeneration through CNTF, making them potential targets to treat sensorineural anosmia due to OSN loss.
Identifiants
pubmed: 33130470
pii: S1873-5061(20)30362-7
doi: 10.1016/j.scr.2020.102061
pmc: PMC7903807
mid: NIHMS1658027
pii:
doi:
Substances chimiques
Ciliary Neurotrophic Factor
0
Focal Adhesion Protein-Tyrosine Kinases
EC 2.7.10.2
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
102061Subventions
Organisme : NCRR NIH HHS
ID : C06 RR030651
Pays : United States
Organisme : NIA NIH HHS
ID : R01 AG029493
Pays : United States
Informations de copyright
Published by Elsevier B.V.
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