Repurposed drug agomelatine is therapeutic against collagen-induced arthritis via iNOS targeting

Copyright © 2024 Elsevier B.V. All rights reserved..

BACKGROUND: The most promising biologics tumor necrosis factor α (TNFα) inhibitors are effective in treating rheumatoid arthritis (RA) in only 50-70 % of the cases; thus, new drugs targeting TNFα-mediated inflammation are required.

METHODS: Firstly, the drugs that could inhibit FLS proliferation and TNFα induced inflammatory cytokine production were screened. Secondly, treatment effects of the identified drugs were screened in collagen-induced arthritis (CIA) mouse model. Thirdly, the inhibitory effect of the identified drug, agomelatine (AOM), on TNFα induced inflammatory cytokine production and NF-κB activity were confirmed. Fourthly, bioinformatics was applied to predict the binding target of AOM and the binding was confirmed, and the already known inhibitor of target was used to test the treatment effect for CIA mouse model. Finally, the effect of AOM on signaling pathway was tested and on TNFα induced inflammatory cytokine production was observed after inhibiting the target.

RESULTS: AOM effectively inhibited TNFα-induced NF-κB activation, NF-κB p65 translocation, and inflammatory cytokines production in vitro and was therapeutic against CIA. The mechanistic study indicated inducible nitric oxide synthase (iNOS) as the binding target of AOM. 1400 W, a known inhibitor of iNOS, could effectively treat CIA by decreasing iNOS activity and the levels of inflammatory cytokines. The inhibitory effect of AOM on TNFα-induced inflammation was further elucidated by 1400 W, or NF-κB p65 inhibitor JSH-23, indicating that AOM is therapeutic against CIA via iNOS/ERK/p65 signaling pathway after binding with iNOS.

CONCLUSIONS: AOM is therapeutic against CIA via inhibition of the iNOS/ERK/p65 signaling pathway after binding with iNOS.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:130

Enthalten in:

International immunopharmacology - 130(2024) vom: 30. März, Seite 111750

Sprache:

Englisch

Beteiligte Personen:

Chen, Yuehong [VerfasserIn]
Tian, Yunru [VerfasserIn]
Liu, Huan [VerfasserIn]
Li, Qianwei [VerfasserIn]
Luo, Zhongling [VerfasserIn]
Ran, Jingjing [VerfasserIn]
Miao, Zhiyong [VerfasserIn]
Zhang, Qiuping [VerfasserIn]
Yin, Geng [VerfasserIn]
Xie, Qibing [VerfasserIn]

Links:

Volltext

Themen:

137R1N49AD
Acetamides
Agomelatine
Collagen induced arthritis mouse model
Cytokines
EC 1.14.13.39
Imines
Inducible nitric oxide synthase
Journal Article
N-((3-(aminomethyl)phenyl)methyl)ethanimidamide
NF-kappa B
Naphthalenes
Nitric Oxide Synthase Type II
Nuclear factor kappa B
Rheumatoid arthritis
Tumor Necrosis Factor-alpha

Anmerkungen:

Date Completed 25.03.2024

Date Revised 27.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.intimp.2024.111750

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369324110