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001-es BibID:	BIBFORM068577
035-os BibID:	(WoS)000412614700016 (Scopus)85018178830
Első szerző:	Khasawneh, Ahmad
Cím:	Myeloid but not plasmacytoid blood DCs possess Th1 polarizing and Th1/Th17 recruiting capacity in psoriasis / Khasawneh Ahmad, Baráth Sándor, Medgyesi Barbara, Béke Gabriella, Dajnoki Zsolt, Gáspár Krisztián, Jenei Adrienn, Pogácsás Lilla, Pázmándi Kitti, Gaál János, Bácsi Attila, Szegedi Andrea, Kapitány Anikó
Dátum:	2017
ISSN:	0165-2478
Megjegyzések:	Psoriasis is a common inflammatory skin disease and dendritic cells (DCs) play crucial role in the development of skin inflammation. Although the characteristics of skin DCs in psoriasis are well defined, less is known about their peripheral blood precursors. Our aim was to characterize the phenotypic features as well as the cytokine and chemokine production of CD1c+ myeloid DCs (mDCs) and plasmacytoid DCs (pDCs) in the blood samples of psoriatic patients. Blood DCs were isolated by using a magnetic separation kit, and their intracytoplasmic cytokine production and CD83/CD86 maturation/activation marker expression were investigated by 8-colour flow cytometry. In CD1c+ mDCs the intracellular productions of Th1, Th2, Th17, Th22 and Treg polarizing cytokines were examined simultaneously, whereas in pDCs the amounts of IFN? as well as IL-12, IL-23 and IL-6 were investigated. The chemokine production of both DC populations was investigated by flow-cytometry and ELISA. According to our results psoriatic CD1c+ mDCs were in a premature state since their CD83/CD86 maturation/activation marker expression, IL-12 cytokine, CXCL9 and CCL20 chemokine production was significantly higher compared to control cells. On the other hand, blood pDCs neither produced any of the investigated cytokines and chemokines nor expressed CD83/CD86 maturation/activation markers. Our results indicate that in psoriasis not only skin but also blood mDCs perform Th1 polarizing and Th1/Th17 recruiting capacity, while pDCs function only in the skin milieu.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk psoriasis, dendritikus sejtek
Megjelenés:	Immunology Letters. - 189 (2017), p. 109-113. -
További szerzők:	Baráth Sándor (1977-) (biológus) Retzlerné Medgyesi Barbara (1990-) (biotechnológus) Béke Gabriella (1987-) (molekuláris biológus) Dajnoki Zsolt (1985-) (molekuláris biológus) Gáspár Krisztián (1974-) (bőrgyógyász) Jenei Adrienn (1978-) (biológus, kémikus) Pogácsás Lilla Pázmándi Kitti Linda (1984-) (molekuláris biológus, immunológus) Gaál János (1965-) (reumatológus, belgyógyász) Bácsi Attila (1967-) (immunológus) Szegedi Andrea (1964-) (bőrgyógyász) Kapitány Anikó (1979-) (molekuláris biológus)
Pályázati támogatás:	OTKA-112077 OTKA OTKA-108421 OTKA GINOP-2.3.2-15-2016-00050 GINOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM069133
Első szerző:	Szabó Krisztina (Molekuláris biológus)
Cím:	Expansion of circulating follicular T helper cells associates with disease severity in childhood atopic dermatitis / Szabó Krisztina, Gáspár Krisztián, Dajnoki Zsolt, Papp Gábor, Fábos Beáta, Szegedi Andrea, Zeher Margit
Dátum:	2017
ISSN:	0165-2478
Megjegyzések:	Follicular helper T (TFH) cells play crucial role in B-cell differentiation and antibody production. Although, atopic dermatitis (AD) is often associated with increased serum IgE levels, B-cell mediated responses have not been studied thoroughly. The aim of our study was to investigate the proportion of TFH-like cells in the disease. Twelve children and 17 adults with AD as well as 14 healthy controls were enrolled in the study. The frequency of CD4+CXCR5+ICOS+PD-1+ TFH-like cells and their IL-21 cytokine production were determined by flow cytometry. Immunohistochemical analysis was performed on skin biopsy specimens from AD patients for the detection of TFH markers. The percentages and absolute numbers of circulating TFH-like cells were significantly increased in children with AD compared to adult patients and healthy controls. IL-21 cytokine production of TFH-like cells was also elevated and showed a strong positive correlation with paediatric patients' SCORAD index. The expression of TFH-specific markers showed only a non-specific scattered pattern in skin biopsy specimens. This is the first study to demonstrate that TFH-like cells expanded in the peripheral blood of children with AD compared to adults. These results reinforce the importance of further investigations on TFH-like cells in different phenotypes and endotypes of AD.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Circulating follicular t helper cells Dermatology Flow cytometry Interleukin-21 SCORAD
Megjelenés:	Immunology Letters 189 (2017), p. 101-108. -
További szerzők:	Gáspár Krisztián (1974-) (bőrgyógyász) Dajnoki Zsolt (1985-) (molekuláris biológus) Papp Gábor (1984-) (belgyógyász) Fábos Beáta Szegedi Andrea (1964-) (bőrgyógyász) Zeher Margit (1957-2018) (belgyógyász, allergológus és klinikai immunológus, reumatológus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM046194
Első szerző:	Szegedi Andrea (bőrgyógyász)
Cím:	An Fc gamma RIII (CD16)-specific autoantibody from a patient with progressive systemic sclerosis / Szegedi A., Boros P., Chen J., Kaffina M., Bona C., Unkeless J. C.
Dátum:	1994
ISSN:	0165-2478
Megjegyzések:	Polyspecific and organ specific autoimmune diseases are often accompanied by prolonged clearance of immune complexes. In mice, impaired macrophage Fc gamma receptor function may be associated with autoantibody against Fc gamma receptors. To extend these observations to autoimmune human disease, we transformed with EBV peripheral lymphocytes from a patient with terminal progressive systemic sclerosis and screened for clones secreting anti-Fc gamma receptor Ig. A clone, N55, which secretes a high affinity anti-Fc gamma receptor IgG2 antibody was obtained. The Fab fragment of N55 bound to human neutrophils, NK cells, but not to monocytes, consistent with specificity for Fc gamma RIII (CD16). N55 Fab competed weakly for the binding of anti-Fc gamma RIII mAb 3G8 to neutrophils but did not have any effect on staining with the anti-Fc gamma RII mAb, IV.3. N55 Fab did not bind to peripheral monocytes, but did bind to monocytes incubated with TGF-beta (24 h) to induce Fc gamma RIII. The specificity of N55 IgG for Fc gamma RIII was confirmed by ELISA using secreted recombinant Fc gamma RIIA and Fc gamma RIIIB protein to coat microtiter wells. N55 IgG triggered the release from neutrophils of beta-glucuronidase, arylsulfatase and alkaline phosphatase. Such antibody may play a pathogenic role in progressive systemic sclerosis.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Immunology Letters. - 35 : 1 (1994), p. 69-76. -
További szerzők:	Boros Péter Chen, Jiayuan Kaffina, Martin Bona, Constantin Unkeless, Jay C.
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat DOI
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001-es BibID:	BIBFORM040667
035-os BibID:	PMID:12706531
Első szerző:	Szegedi Andrea (bőrgyógyász)
Cím:	Elevated rate of Thelper1 (T(H)1) lymphocytes and serum IFN-gamma levels in psoriatic patients / Andrea Szegedi, Magdolna Aleksza, Andrea Gonda, Beatrix Irinyi, Sándor Sipka, János Hunyadi, Péter Antal-Szalmás
Dátum:	2003
ISSN:	0165-2478
Megjegyzések:	Several disorders are known to be associated with altered Thelper1/Thelper2 (T(H)1/T(H)2) cytokine balance. Psoriasis is characterized by increased systemic and local production of T(H)1 and pro-inflammatory cytokines. Furthermore recent data indicate the dominant presence of T(H)1 lymphocytes in the circulation and T(H)1 and Tcytotoxic1 (T(C)1) cells in lesional skin of psoriatic patients. In order to assess the systemic T(H)1/T(H)2 imbalance in psoriasis most of the studies so far tested isolated peripheral mononuclear cells. As a new approach we applied a whole blood flow cytometric assay to determine the rate of circulating T(H)1/T(H)2 and T(C)1/Tcytotoxic2 (T(C)2) lymphocytes based on their intracellular IFN-gamma, IL-4 and IL-10 expression. Besides, serum levels of these cytokines were determined in healthy controls and psoriatic patients by commercial ELISAs. In psoriatic patients we found significantly (P<0.02) increased rates of CD4(+)/IFN-gamma(+) lymphocytes (30.3+/-8.8%) while the percent of CD4(+)/IL-4(+) cells (0.37+/-0.31%) were significantly (P<0.03) lower compared to healthy controls (CD4(+)/IFN-gamma(+): 20.1+/-7.3% and CD4(+)/IL-4(+): 0.78+/-0.44%). The IL-10-positive CD4(+) and CD8(+) cells also had higher rate in psoriasis, but the difference between patients and controls was not significant, similarly to the rate of CD8(+)/IFN-gamma(+) and CD8(+)/IL-4(+) lymphocytes. Beside cellular expression, serum IFN-gamma levels were also significantly higher (control: 4.9+/-6.4 pg/ml; psoriatic patients: 35.9+/-47.0 pg/ml; P<0.05). Our results provide further evidence for an altered T(H)1/T(H)2 balance in psoriasis measured in non-separated whole blood T cells.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban egyetemen (Magyarországon) készült közlemény
Megjelenés:	Immunology Letters. - 86 : 3 (2003), p. 277-280. -
További szerzők:	Aleksza Magdolna Gonda Andrea (1970-) (onkológus szakorvos) Irinyi Beatrix (1972-) (bőrgyógyász, allergológus) Sipka Sándor (1945-) (laboratóriumi szakorvos) Hunyadi János (1943-) (bőrgyógyász, kozmetológus, allergológus) Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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