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001-es BibID:BIBFORM037888
035-os BibID:PMID:22467923 WOS:000303975300009
Első szerző:Meskó Bertalan (kutatóorvos)
Cím:Peripheral blood gene expression and IgG glycosylation profiles as markers of tocilizumab treatment in rheumatoid arthritis / Bertalan Mesko, Szilárd Póliska, Szilvia Szamosi, Zoltán Szekanecz, János Podani, Csaba Váradi, András Guttman, László Nagy
Dátum:2012
ISSN:0315-162X
Megjegyzések:Objective. Tocilizumab, a humanized anti-interleukin-6 receptor monoclonal antibody, has recentlybeen approved as a biological therapy for rheumatoid arthritis (RA) and other diseases. It is not knownif there are characteristic changes in gene expression and immunoglobulin G glycosylation during therapyor in response to treatment.Methods. Global gene expression profiles from peripheral blood mononuclear cells of 13 patients withRA and active disease at Week 0 (baseline) and Week 4 following treatment were obtained together withclinical measures, serum cytokine levels using ELISA, and the degree of galactosylation of the IgG Nglycanchains. Gene sets separating responders and nonresponders were tested using canonical variatesanalysis. This approach also revealed important gene groups and pathways that differentiate respondersfrom nonresponders.Results. Fifty-nine genes showed significant differences between baseline and Week 4 and thus correlatedwith treatment. Significantly, 4 genes determined responders after correction for multiple testing. Tenof the 12 genes with the most significant changes were validated using real-time quantitative polymerasechain reaction. An increase in the terminal galactose content of N-linked glycans of IgG was observed inresponders versus nonresponders, as well as in treated samples versus samples obtained at baseline.Conclusion. As a preliminary report, gene expression changes as a result of tocilizumab therapy in RAwere examined, and gene sets discriminating between responders and nonresponders were found andvalidated. A significant increase in the degree of galactosylation of IgG N-glycans in patients with RAtreated with tocilizumab was documented.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:The Journal of Rheumatology 39 : 5 (2012), p. 916-928. -
További szerzők:Póliska Szilárd (1978-) (biológus) Szamosi Szilvia (1975-) (belgyógyász, reumatológus) Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus) Podani János Váradi Csaba (1988-) (molekuláris biológus) Guttman András (1954-) (vegyészmérnök) Nagy László (1966-) (molekuláris sejtbiológus, biokémikus)
Internet cím:Szerző által megadott URL
DOI
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2.

001-es BibID:BIBFORM058339
Első szerző:Váradi Csaba (molekuláris biológus)
Cím:Combination of IgG N-glycomics and corresponding transcriptomics data to identify anti-TNFα treatment responders in inflammatory diseases / Csaba Váradi, Zsolt Holló, Szilárd Póliska, László Nagy, Zoltán Szekanecz, Andrea Váncsa, Károly Palatka, András Guttman
Dátum:2015
ISSN:0173-0835
Megjegyzések:Prediction of responsiveness in biological therapies is an important and challenging issue in different diseases. Analyzing glycosylation pattern changes of key serum glycoproteins is one of the possible avenues to follow disease remission. The aim of this study was to investigate the changes of serum IgG glycoforms in Crohn's disease (CD) and rheumatoid arthritis patients in response to antitumor necrosis factor alpha (anti-TNF-?) treatment. IgG was isolated from patient serum samples using Protein A affinity pull-down, followed by the release of N-glycans with peptide-N-glycosidase F. The released glycans were fluorescently tagged with 8-aminopyrene-1,3,6-trisulfonate and analyzed by CGE with laser-induced fluorescent detection. Significant alterations were detected between responders and nonresponders in both disease groups. In CD patients, disease-specific alteration was found in response to anti-TNF-? therapy, which was also confirmed by transcriptomics data analysis of the corresponding glycosyltransferases and glycosidases.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
glikozilacio
Megjelenés:Electrophoresis. - 36 : 11-12 (2015), p. 1330-1335. -
További szerzők:Holló Zsolt Póliska Szilárd (1978-) (biológus) Nagy László (1966-) (molekuláris sejtbiológus, biokémikus) Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus) Váncsa Andrea (1972-) (orvos) Palatka Károly (1961-) (belgyógyász, gasztroenterológus) Guttman András (1954-) (vegyészmérnök)
Pályázati támogatás:MTA-PE Translational Glycomics
MTA
Internet cím:DOI
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