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001-es BibID:	BIBFORM046547
035-os BibID:	PMID:23608739
Első szerző:	Hajas Ágota Helga (orvos)
Cím:	Derailed B cell homeostasis in patients with mixed connective tissue disease / A. Hajas, S. Barath, P. Szodoray, B. Nakken, P. Gogolak, Z. Szekanecz, E. Zold, M. Zeher, G. Szegedi, E. Bodolay
Dátum:	2013
ISSN:	0198-8859
Megjegyzések:	Mixed connective tissue disease (MCTD) is a systemic autoimmune disorder, characterized by the presence of antibodies to U1-RNP protein. We aimed to determine phenotypic abnormalities of peripheral B cell subsets in MCTD. Blood samples were obtained from 46 MCTD patients, and 20 controls. Using anti-CD19, anti-CD27, anti-IgD and anti-CD38 monoclonal antibodies, the following B cell subsets were identified by flow cytometry: (1) transitional B cells (CD19+CD27-IgD+CD38(high)); (2) naive B cells (CD19+CD27-IgD+CD38(low)); (3) non-switched memory B cells (CD19+CD27+IgD+); (4) switched memory B cells (CD19+CD27+IgD-); (5) double negative (DN) memory B cells (CD19+CD27-IgD-) and (6) plasma cells (CD19+CD27(high)IgD-). The proportion of transitional B cells, naive B cells and DN B lymphocytes was higher in MCTD than in controls. The DN B cells were positive for CD95 surface marker. This memory B cells population showed a close correlation with disease activity. The number of plasma cells was also increased, and there was an association between the number of plasma cells and the anti-U1RNP levels. Cyclophosphamide, methotrexate, and corticosteroid treatment decreased the number of DN and CD27(high) B cells. In conclusion, several abnormalities were found in the peripheral B-cell subsets in MCTD, which reinforces the role of derailed humoral autoimmune processes in the pathogenesis.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Human Immunology. - 74 : 7 (2013), p. 833-841. -
További szerzők:	Baráth Sándor (1977-) (biológus) Szodoray Péter (1973-) (belgyógyász, orvos) Nakken, Britt Gogolák Péter (1968-) (biológus, immunológus) Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus) Zöld Éva (1978-) (belgyógyász) Zeher Margit (1957-2018) (belgyógyász, allergológus és klinikai immunológus, reumatológus) Szegedi Gyula (1936-2013) (belgyógyász, immunológus) Bodolay Edit (1950-) (belgyógyász, allergológus és klinikai immunológus)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat DOI
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