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001-es BibID:	BIBFORM007067
Első szerző:	Kapitány Anikó (molekuláris biológus)
Cím:	Association of rheumatoid arthritis with HLA-DR1 and HLA-DR4 in Hungary / Kapitany, A., Zilahi, E., Szanto, S., Szucs, G., Szabo, Z., Vegvari, A., Rass, P., Sipka, S., Szegedi, G., Szekanecz, Z.
Dátum:	2005
ISSN:	0077-8923 (Print)
Megjegyzések:	Susceptibility to and outcome for rheumatoid arthritis (RA) have been associated with particular HLA-DR alleles, but these alleles vary among ethnic groups and geographic areas. The frequency of HLA-DR1 (HLA-DRB10101, DRB10102) and HLA-DR4 (DRB10401, DRB10404) alleles is elevated among Caucasian patients with RA. We studied a northeastern Hungarian population of RA patients to determine the frequency of HLA-DR1 and HLA-DR4 phenotypes in this population and to compare it with healthy control subjects, as well as to investigate whether the presence of these alleles could be a marker for RA. We performed HLA-DRB1 genotyping (DRB101-DRB116) in 83 RA patients and 55 healthy controls using polymerase chain reaction with sequence-specific primers (PCR-SSP). In the case of HLA-DR1- or HLA-DR4-positive patients, the DR1 and DR4 subtypes were also determined. The frequency of HLA-DR4 alleles was significantly higher in RA patients than in controls (31.3 vs. 10.9%; P <.05). HLA-DR1, in particular, tended to be more frequent in patients than in controls (32.5 vs. 18.1%). Among the HLA-DR4 subtypes, DRB10401 and DRB10404 were the most common alleles found in both groups. However, no significant differences were seen in the frequency of HLA-DRB10401 and HLA-DRB10404 between RA patients and controls. In contrast, HLA-DRB10405 and HLA-DRB10408 were significantly more common in RA patients than in control subjects. Among HLA-DR1 subtypes, the DRB10101 allele was most commonly detected, but HLA-DRB10101 as well as DRB10102 and DRB10105 were similarly frequent in RA patients and controls. HLA-DR12 was more common among controls than in RA patients (18.1 vs. 0%; P <.05). Our results generally agree with the findings in other Caucasian populations. Nonetheless, we found differences in the frequency of HLA-DR1 and HLA-DR4 subtypes among Hungarian patients compared with reports from other geographic regions (e.g., Finland and Asia). Our data suggest that in northeastern Hungary, HLA-DR4 as well as its subtypes DRB10405 and DRB10408 may be involved in susceptibility to RA, but HLA-DR1 may not. In addition, the presence of HLA-DR12, at least in Hungary, may protect from this disease.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Adolescent Adult Aged Aged, 80 and over Alleles Arthritis, Rheumatoid Female HLA-DR Antigens HLA-DR1 Antigen Humans Male Middle Aged
Megjelenés:	Annals of the New York Academy of Sciences. - 1051 (2005), p. 263-270. -
További szerzők:	Zilahi Erika (1964-) (molekuláris biológus) Szántó Sándor (1968-) (belgyógyász, reumatológus) Szűcs Gabriella (1963-) (belgyógyász, allergológus és klinikai immunológus, reumatológus) Szabó Zoltán (1970-) (belgyógyász, reumatológus) Végvári Anikó (belgyógyász, III. sz. Belgyógyászati Klinika) Rass Péter Sipka Sándor (1945-) (laboratóriumi szakorvos) Szegedi Gyula (1936-2013) (belgyógyász, immunológus) Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus)
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001-es BibID:	BIBFORM007130
Első szerző:	Szekanecz Zoltán (reumatológus, belgyógyász, immunológus)
Cím:	Anti-citrullinated protein antibodies in rheumatoid arthritis : as good as it gets? / Szekanecz, Z., Soos, L., Szabo, Z., Fekete, A., Kapitany, A., Vegvari, A., Sipka, S., Szucs, G., Szanto, S., Lakos, G.
Dátum:	2008
ISSN:	1080-0549 (Print)
Megjegyzések:	Anti-citrullinated protein antibodies (ACPAs) have recently emerged as sensitive and specific serological markers of rheumatoid arthritis (RA), providing superior alternative of the rheumatoid factor (RF) test in the laboratory diagnostics of RA. The first members of this autoantibody family were anti-perinuclear factor (APF) and anti-keratin antibodies (AKA). It became evident that both APF and AKA recognize citrullinated epitopes of filaggrin. Citrullination is a post-translational modification of arginine by deimination, physiologically occurring during apoptosis, inflammation or keratinization. The presence of several citrullinated proteins has been demonstrated in the RA synovium. The identification of citrullinated epitopes as targets for anti-filaggrin antibodies led to the development of the first and later second generation anti-cyclic citrullinated peptide (anti-CCP) antibody assays. The widely used anti-CCP2 assays have high diagnostic sensitivity and specificity, and they also show important predictive and prognostic value in RA. The anti-Sa antibody has been identified a decade ago; however, recent studies confirmed that anti-Sa is directed against citrullinated vimentin, hence it is a new member of the family of ACPAs. The newly developed anti-mutated citrullinated vimentin (anti-MCV) assay has similar diagnostic performance than the anti-CCP2 ELISA; however, the diagnostic spectrum of the anti-MCV test is somewhat different from that of anti-CCP2. It's especially useful in the diagnosis of RA in RF and anti-CCP2 seronegative patients. The combined application of anti-CCP2 and anti-MCV assays can improve the laboratory diagnostics of RA. The family of ACPAs is expected to expand; there is an increasing need for developing new diagnostic strategies after careful evaluation of the characteristics of the available assays.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Arthritis, Rheumatoid/diagnosis/immunology Autoantibodies/blood Humans Peptides, Cyclic/immunology Vimentin/immunology
Megjelenés:	Clinical Reviews in Allergy and Immunology. - 34 : 1 (2008), p. 26-31. -
További szerzők:	Soós Lilla Szabó Zoltán (1970-) (belgyógyász, reumatológus) Fekete Andrea (immunológus) Kapitány Anikó (1979-) (molekuláris biológus) Végvári Anikó (belgyógyász, III. sz. Belgyógyászati Klinika) Sipka Sándor (1945-) (laboratóriumi szakorvos) Szűcs Gabriella (1963-) (belgyógyász, allergológus és klinikai immunológus, reumatológus) Szántó Sándor (1968-) (belgyógyász, reumatológus) Lakos Gabriella (1963-) (laboratóriumi szakorvos, transzfúziológus, immunológus)
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001-es BibID:	BIBFORM007140
Első szerző:	Szodoray Péter (belgyógyász, orvos)
Cím:	Anti-citrullinated protein/peptide autoantibodies in association with genetic and environmental factors as indicators of disease outcome in rheumatoid arthritis / Szodoray, P., Szabo, Z., Kapitany, A., Gyetvai, A., Lakos, G., Szanto, S., Szucs, G., Szekanecz, Z.
Dátum:	2010
ISSN:	1873-0183 (Electronic)
Megjegyzések:	Anti-citrullinated protein/peptide antibodies (ACPA) have recently emerged as sensitive and specific serological markers of rheumatoid arthritis (RA), providing superior alternative of the rheumatoid factor (RF) test in the laboratory diagnostics of RA. Citrullination is a post-translational modification of arginine by deimination, physiologically occurring during apoptosis, inflammation or keratinization. The presence of several citrullinated proteins has been demonstrated in the RA synovium. The identification of citrullinated epitopes as targets led to the development of the first and later second-generation anti-cyclic citrullinated peptide (anti-CCP) antibody assays. The anti-Sa antibody has been identified a decade ago; however, recent studies confirmed that anti-Sa is directed against citrullinated vimentin. The determination of ACPA may have important prognostic significance, since ACPA production can precede the onset of clinical RA symptoms by years. ACPA(+) individuals with early, undifferentiated arthritis may have higher risk to develop RA. ACPA has important prognostic role during the progression of RA and it has also been associated with pronounced radiographic progression. ACPA production has been associated with several genetic predisposing factors, including HLA-DRB1 and PTPN22 1858T alleles, as well as with environmental and lifestyle-related factors, primarily smoking and possibly, the use of oral contraceptives and excessive caffeine intake. Thus, the assessment of ACPA, in addition to clinical, radiographic and genetic outcome measures may be important to assess disease prognosis and aids to design effective, early therapeutic strategies.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Animals Arthritis, Rheumatoid/diagnosis/genetics/immunology/therapy Autoantibodies/blood/immunology Citrulline/immunology Genetic Testing Humans Peptides/immunology Prognosis
Megjelenés:	Autoimmunity Reviews. - 9 : 3 (2010), p. 140-143. -
További szerzők:	Szabó Zoltán (1970-) (belgyógyász, reumatológus) Kapitány Anikó (1979-) (molekuláris biológus) Gyetvai Ágnes Lakos Gabriella (1963-) (laboratóriumi szakorvos, transzfúziológus, immunológus) Szántó Sándor (1968-) (belgyógyász, reumatológus) Szűcs Gabriella (1963-) (belgyógyász, allergológus és klinikai immunológus, reumatológus) Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus)
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001-es BibID:	BIBFORM007141
Első szerző:	Szűcs Gabriella (belgyógyász, allergológus és klinikai immunológus, reumatológus)
Cím:	Systemic sclerosis-rheumatoid arthritis overlap syndrome : a unique combination of features suggests a distinct genetic, serological and clinical entity / Szucs, G., Szekanecz, Z., Zilahi, E., Kapitany, A., Barath, S., Szamosi, S., Vegvari, A., Szabo, Z., Szanto, S., Czirjak, L., Kiss, C. Gyorgy
Dátum:	2007
ISSN:	1462-0324 (Print)
Megjegyzések:	To determine the genetic, clinical and serological characteristics of systemic sclerosis (SSc)-rheumatoid arthritis (RA) overlap syndrome. METHODS: Clinical manifestations and immunolaboratory features of 22 SSc-RA patients were assessed. The HLA-DR genotype of the 22 SSc-RA patients determined by SSP-PCR was compared with that of 38 SSc patients, 100 RA patients and 50 healthy controls. RESULTS: All overlap patients fulfilled the American College of Rheumatology (ACR) criteria for SSc and RA. Five of the 22 patients (23%) had diffuse cutaneous SSc (dcSSc) and 17 patients (77%) had limited cutaneous SSc (lcSSc). Antinuclear antibody, anti-Scl70, IgM rheumatoid factor and anti-CCP antibody positivity were detected in 22 (100%), 5 (23%), 16 (73%) and 18 patients (82%), respectively. Seventeen patients (77%) had pulmonary fibrosis, 12 (55%) had oesophageal dismotility, 11 (50%) had cardiac and five (23%) had renal involvement. Hand joint destruction was observed in 18 patients (82%). Significantly increased frequencies of HLA-DR3 (36% vs 5%), HLA-DR7 (9% vs 4%), HLA-DR11 (36% vs 7%) and HLA-DRw53 (23% vs 5%) were observed in SSc-RA compared with RA patients (P < 0.05). Allele frequencies of the 'shared epitope' (HLA-DR1 and -DR4) were significantly increased in SSc-RA (32% and 27%, respectively) and RA patients (46% and 31%, respectively) in comparison with SSc patients (10.5% and 16%, respectively) or healthy controls (16% and 14%, respectively) (P < 0.05). CONCLUSIONS: To date this is the largest SSc-RA overlap cohort. Genetics, clinical and immunolaboratory features suggest a mixed phenotype. Our data suggest that SSc-RA overlap syndrome may be a distinct genetic, immunological and clinical entity.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Adult Aged Arthritis, Rheumatoid Autoantibodies Esophageal Motility Disorders Female Gene Frequency Genotype Humans Male Middle Aged Polymerase Chain Reaction Pulmonary Fibrosis Scleroderma, Systemic Syndrome
Megjelenés:	Rheumatology. - 46 : 6 (2007), p. 989-993. -
További szerzők:	Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus) Zilahi Erika (1964-) (molekuláris biológus) Kapitány Anikó (1979-) (molekuláris biológus) Baráth Sándor (1977-) (biológus) Szamosi Szilvia (1975-) (belgyógyász, reumatológus) Végvári Anikó (belgyógyász, III. sz. Belgyógyászati Klinika) Szabó Zoltán (1970-) (belgyógyász, reumatológus) Szántó Sándor (1968-) (belgyógyász, reumatológus) Czirják László Kiss Csaba György
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