Dihydroartemisinin alleviates erosive bone destruction by modifying local Treg cells in inflamed joints : A novel role in the treatment of rheumatoid arthritis

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

Treg cell-based therapy has exhibited promising efficacy in combatting rheumatoid arthritis (RA). Dihydroartemisinin (DHA) exerts broad immunomodulatory effects across various diseases, with its recent spotlight on T-cell regulation in autoimmune conditions. The modulation of DHA on Treg cells and its therapeutic role in RA has yet to be fully elucidated. This study seeks to unveil the influence of DHA on Treg cells in RA and furnish innovative substantiation for the potential of DHA to ameliorate RA. To this end, we initially scrutinized the impact of DHA-modulated Treg cells on osteoclast (OC) formation in vitro using Treg cell-bone marrow-derived monocyte (BMM) coculture systems. Subsequently, employing the collagen-induced arthritis (CIA) rat model, we validated the efficacy of DHA and probed its influence on Treg cells in the spleen and popliteal lymph nodes (PLN). Finally, leveraging deep proteomic analysis with data-independent acquisition (DIA) and parallel accumulation-serial fragmentation (PASEF) technology, we found the alterations in the Treg cell proteome in PLN by proteomic analysis. Our findings indicate that DHA augmented suppressive Treg cells, thereby impeding OC formation in vitro. Consistently, DHA mitigated erosive joint destruction and osteoclastogenesis by replenishing splenic and joint-draining lymph node Treg cells in CIA rats. Notably, DHA induced alterations in the Treg cell proteome in PLN, manifesting distinct upregulation of alloantigen Col2a1 (Type II collagen alfa 1 chain) and CD8a (T-cell surface glycoprotein CD8 alpha chain) in Treg cells, signifying DHA's targeted modulation of Treg cells, rendering them more adept at sustaining immune tolerance and impeding bone erosion. These results unveil a novel facet of DHA in the treatment of RA.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:130

Enthalten in:

International immunopharmacology - 130(2024) vom: 30. März, Seite 111795

Sprache:

Englisch

Beteiligte Personen:

Cao, Xiaoxue [VerfasserIn]
Wang, Zhaoran [VerfasserIn]
Jiao, Yi [VerfasserIn]
Diao, Wenya [VerfasserIn]
Geng, Qishun [VerfasserIn]
Zhao, Lu [VerfasserIn]
Wang, Zihan [VerfasserIn]
Wang, Xing [VerfasserIn]
Zhang, Mengxiao [VerfasserIn]
Xu, Jiahe [VerfasserIn]
Wang, Bailiang [VerfasserIn]
Deng, Tingting [VerfasserIn]
Xiao, Cheng [VerfasserIn]

Links:

Volltext

Themen:

6A9O50735X
Artemisinins
Artenimol
DIA-PASEF technology
Dihydroartemisinin
Erosive bone destruction
Journal Article
Proteome
Rheumatoid arthritis
Treg cell
Treg cell-BMM coculture system

Anmerkungen:

Date Completed 25.03.2024

Date Revised 25.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.intimp.2024.111795

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369371836