Cellular senescence implication in mustard keratopathy.
Aging
Beta-galactosidase
Mustard gas
Mustard keratopathy
Nitrogen mustard
Ocular surface
Senescence
Journal
Experimental eye research
ISSN: 1096-0007
Titre abrégé: Exp Eye Res
Pays: England
ID NLM: 0370707
Informations de publication
Date de publication:
08 2023
08 2023
Historique:
received:
15
05
2023
revised:
28
06
2023
accepted:
01
07
2023
pmc-release:
01
08
2024
medline:
24
7
2023
pubmed:
6
7
2023
entrez:
5
7
2023
Statut:
ppublish
Résumé
Mustard agents are vesicants that were used in warfare multiple times. They are potent alkylating agents that activate cellular pathways of apoptosis, increase oxidative stress, and induce inflammation. Eyes are particularly susceptible to mustard exposure with a wide range of ocular surface damage. Three main categories of mustard-related eye injuries are acute, chronic, and delayed-onset manifestations. Mustard keratopathy (MK) is a known complication characterized by corneal opacification, ulceration, thinning, and neovascularization that can lead to severe vision loss and discomfort. Recently, a few reports demonstrated the role of senescence induction as a new pathological mechanism in mustard-related injuries that could affect wound healing. We ran the first murine model of delayed-onset MK and nitrogen mustard-induced senescence, evaluating the pathological signs of senescence in the cornea using beta-galactosidase staining. Our results suggest that nitrogen mustard exposure causes senescence in the corneal cells, which could be the underlying mechanism for chronic and late-onset ocular surface damage. We also found a significant correlation between the percentage of positive beta-galactosidase staining and the degree of fibrosis in the cornea. This provides valuable insight into the possible role of anti-senescence drugs in the near future for accelerating corneal healing and restricting fibrosis in patients with mustard keratopathy.
Identifiants
pubmed: 37406956
pii: S0014-4835(23)00186-0
doi: 10.1016/j.exer.2023.109565
pmc: PMC10392783
mid: NIHMS1916966
pii:
doi:
Substances chimiques
Chemical Warfare Agents
0
Mustard Gas
T8KEC9FH9P
Mechlorethamine
50D9XSG0VR
Types de publication
Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
109565Subventions
Organisme : NEI NIH HHS
ID : P30 EY001792
Pays : United States
Organisme : NEI NIH HHS
ID : R01 EY024349
Pays : United States
Organisme : NEI NIH HHS
ID : UH3 EY031809
Pays : United States
Informations de copyright
Copyright © 2023 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no competing interests.
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