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Prodjinotho, U.F.* ; Gres, V.* ; Henkel, F. ; Lacorcia, M.* ; Dandl, R.* ; Haslbeck, M.* ; Schmidt, V.* ; Winkler, A.S.* ; Sikasunge, C.* ; Jakobsson, P.J.* ; Henneke, P.* ; Esser-von Bieren, J. ; Prazeres da Costa, C.U.*

Helminthic dehydrogenase drives PGE2 and IL-10 production in monocytes to potentiate Treg induction.

EMBO Rep. 23:e54096 (2022)
Verlagsversion Forschungsdaten DOI PMC
Open Access Hybrid
Creative Commons Lizenzvertrag
Immunoregulation of inflammatory, infection-triggered processes in the brain constitutes a central mechanism to control devastating disease manifestations such as epilepsy. Observational studies implicate the viability of Taenia solium cysts as key factor determining severity of neurocysticercosis (NCC), the most common cause of epilepsy, especially in children, in Sub-Saharan Africa. Viable, in contrast to decaying, cysts mostly remain clinically silent by yet unknown mechanisms, potentially involving Tregs in controlling inflammation. Here, we show that glutamate dehydrogenase from viable cysts instructs tolerogenic monocytes to release IL-10 and the lipid mediator PGE2. These act in concert, converting naive CD4+ T cells into CD127−CD25hiFoxP3+CTLA-4+ Tregs, through the G protein-coupled receptors EP2 and EP4 and the IL-10 receptor. Moreover, while viable cyst products strongly upregulate IL-10 and PGE2 transcription in microglia, intravesicular fluid, released during cyst decay, induces pro-inflammatory microglia and TGF-β as potential drivers of epilepsy. Inhibition of PGE2 synthesis and IL-10 signaling prevents Treg induction by viable cyst products. Harnessing the PGE2-IL-10 axis and targeting TGF-ß signaling may offer an important therapeutic strategy in inflammatory epilepsy and NCC.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Glutamate Dehydrogenase ; Immune Regulation ; Prostaglandin E2 ; Taenia Solium Cyst ; Treg Cells
Sprache englisch
Veröffentlichungsjahr 2022
HGF-Berichtsjahr 2022
ISSN (print) / ISBN 1469-221X
e-ISSN 1469-3178
Zeitschrift EMBO Reports
Quellenangaben Band: 23, Heft: 5, Seiten: , Artikelnummer: e54096 Supplement: ,
Verlag EMBO Press
Begutachtungsstatus Peer reviewed
Institut(e) Institute for Allergy Research (IAF)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Allergy
PSP-Element(e) G-505400-001
G-554600-001
Förderungen Open Access funding enabled and organized by Projekt DEAL
the DFG (Deutsche Forschungsgemeinschaft) (PH)
the Helmholtz Initiative and Networking Fund (JEvB)
the DFG (Deutsche Forschungsgemeinschaft) (FH, JEvB)
the DFG (Deutsche Forschungsgemeinschaft) (UFP, ML, CPdC)
DOI 10.15252/embr.202154096
WOS ID WOS:000776202400001
Scopus ID 85127400613
PubMed ID 35357743
Erfassungsdatum 2022-07-26
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