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001-es BibID:	BIBFORM104096
035-os BibID:	(cikkazonosító)12209 (WOS)000872838600001 (Scopus)85140811679
Első szerző:	Szabó Krisztina (Molekuláris biológus)
Cím:	Altered Circulating Follicular T Helper Cell Subsets and Follicular T Regulatory Cells Are Indicators of a Derailed B Cell Response in Lupus, Which Could Be Modified by Targeting IL-21R / Szabó Krisztina, Jámbor Ilona, Pázmándi Kitti, Nagy Nikolett, Papp Gábor, Tarr Tünde
Dátum:	2022
ISSN:	1422-0067
Megjegyzések:	Systemic lupus erythematosus (SLE) is characterized by the breakdown of self-tolerance, the production of high-affinity pathogenic autoantibodies and derailed B cell responses, which indicates the importance of central players, such as follicular T helper (TFH) subsets and follicular T regulatory (TFR) cells, in the pathomechanism of the disease. In this study, we aimed to analyze the distribution of the circulating counterparts of these cells and their association with disease characteristics and B cell disproportions in SLE. We found that the increased percentage of activated circulating TFH (cTFH) and cTFR cells was more pronounced in cutaneous lupus; however, among cTFH subsets, the frequency of cTFH17 cells was decreased in patients with lupus nephritis. Furthermore, the decreased proportion of cTFH17 cells was associated with low complement C4 levels and high disease activity scores. We also investigated whether the blocking of the IL-21 receptor (IL-21R) with an anti-IL-21R monoclonal antibody inhibits the B cell response, since IL-21 primarily produced by TFH cells potentially promotes humoral immunity. We observed that anti-IL-21R inhibited plasmablast generation and immunoglobulin production. Our study demonstrated that, besides cTFR/cTFH imbalance, cTFH17 cells play a crucial role in SLE pathogenesis, and modulating cTFH-B cell interaction through the IL-21/IL-21R pathway may be a promising therapeutic strategy to suppress the pathological B cell response.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk systemic lupus erythematosus follicular T helper cell follicular T regulatory cells interleukin-21 receptor B cell chemokine receptor
Megjelenés:	International Journal Of Molecular Sciences. - 23 : 20 (2022), p. 1-20. -
További szerzők:	Jámbor Ilona (1985-) (orvosi biotechológus) Pázmándi Kitti Linda (1984-) (molekuláris biológus, immunológus) Nagy Nikolett (1989-) (belgyógyász) Papp Gábor (1984-) (belgyógyász) Tarr Tünde (1976-) (belgyógyász, allergológus és klinikai immunológus)
Pályázati támogatás:	K 124177 OTKA PD 121327 OTKA NTP-NFTÖ-21-B-0324 Egyéb ÚNKP-21-05-DE-170 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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