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001-es BibID:BIBFORM081971
035-os BibID:(WoS)000496242300012 (Scopus)85072553206
Első szerző:Biró Attila (okleveles biomérnök)
Cím:Anthocyanin-Rich Sour Cherry Extract Attenuates the Lipopolysaccharide-Induced Endothelial Inflammatory Response / Biro Attila, Markovich Arnold, Homoki Judit Rita, Szőllősi Erzsébet, Hegedűs Csaba, Tarapcsák Szabolcs, Lukács János, Stündl László, Remenyik Judit
Dátum:2019
ISSN:1420-3049
Megjegyzések:The anthocyanin content of Hungarian sour cherry is remarkable based on our preliminary investigations. Nutraceutical and pharmaceutical effects of anthocyanins has been extensively studied. The objective of the this work was investigation of pure sour cherry extract using human umbilical cord vein endothelial cells (HUVECs) as inflammatory model. Endothelial cells are involved in the pathogenesis of a number of inflammatory diseases, express various inflammatory mediators including cytokines, chemokines and reactive oxygen species. HUVECs were isolated by enzymatic digestion, characterized by flow cytometry and treated 100 ng/ml lipopolysaccharide (LPS) and sour cherry extract of different concentrations or M199 medium as control. The optimal concentration range of sour cherry extract was investigated and selected based on MTT, apoptosis and necrosis assays. The effect of sour cherry extract on oxidative stress was investigated by glutathione assay and measurement of level of reactive oxygen radicals (ROS) was performed. Pro-inflammatory factors were evaluated by Luminex MagPlex technique. Arachidonic pathway was tested by Q-PCR. The extract under investigation seems to have a pleitropic effect including anti-oxidative, anti-inflammatory, haemostatic, vasoactive effect. Our results indicate pure sour cherry extract could reduce the LPS-induced inflammatory thereby improving endothelial dysfunction
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Molecules. - 24 : 19 (2019), p. 3427-3441. -
További szerzők:Markovics Arnold (1988-) (molekuláris biológus) Homoki Judit (1978-) (biológus) Szőllősi Erzsébet (1983-) (biológus) Hegedűs Csaba (1983-) (Molekuláris biológus, Cera-Med Kft. Debrecen) Tarapcsák Szabolcs (1989-) (Molekuláris biológus) Lukács János (1975-) (szülész-nőgyógyász, genetikus) Stündl László (1970-) (agrármérnök) Gálné Remenyik Judit (1965-) (kémia tanár, okleveles vegyész)
Pályázati támogatás:GINOP-2.2.1-15-2017-00079
GINOP
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2.

001-es BibID:BIBFORM062465
Első szerző:Mocanu, Maria-Magdalena
Cím:Chemoprevention of Breast Cancer by Dietary Polyphenols / Maria-Magdalena Mocanu, Péter Nagy, János Szöllősi
Dátum:2015
ISSN:1420-3049
Megjegyzések:The review will discuss in detail the effects of polyphenols on breast cancer, including both the advantages and disadvantages of the applications of these natural compounds. First, we focus on the characterization of the main classes of polyphenols and then on in vitro and in vivo experiments carried out in breast cancer models. Since the therapeutic effects of the administration of a single type of polyphenol might be limited because of the reduced bioavailability of these drugs, investigations on combination of several polyphenols or polyphenols with conventional therapy will also be discussed. In addition, we present recent data focusing on clinical trials with polyphenols and new approaches with nanoparticles in breast cancer. Besides the clinical and translational findings this review systematically summarizes our current knowledge about the molecular mechanisms of anti-cancer effects of polyphenols, which are related to apoptosis, cell cycle regulation, plasma membrane receptors, signaling pathways and epigenetic mechanisms. At the same time the effects of polyphenols on primary tumor, metastasis and angiogenesis in breast cancer are discussed. The increasing enthusiasm regarding the combination of polyphenols and conventional therapy in breast cancer might lead to additional efforts to motivate further research in this field.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
polyphenols
breast cancer
prevention
apoptosis
cell cycle
signaling pathways
Megjelenés:Molecules. - 20 (2015), p. 22578-22620. -
További szerzők:Nagy Péter (1971-) (biofizikus) Szöllősi János (1953-) (biofizikus)
Pályázati támogatás:K103906
OTKA
NK101337
OTKA
TÁMOP-4.2.2-08/1-2008-0019
TÁMOP
TÁMOP-4.2.1.B-09/1/KONV-2010-0007
TÁMOP
TÁMOP-4.2.2.A-11/1/KONV-2012-0025
TÁMOP
TÁMOP-4.2.2.D-15/1/ KONV-2015-0016
TÁMOP
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3.

001-es BibID:BIBFORM004691
035-os BibID:(scopus)17944377750 (wos)000174074500011
Első szerző:Pfeiffer, Alexandra
Cím:The cholesterol content of the plasma membrane as a regulator of CD14 dependent signal transduction / Pfeiffer, A., Kapinsky, M., Orso, E., Schutz, G., Schindler, H., Nagy, P., Rothe, G., Szollosi, J., Damjanovich, S., Schmitz, G.
Dátum:2001
Megjegyzések:Lipopolysaccharide (LPS) is known to bind to several surface molecules on various cells. The best characterized LPS-binding protein is CD14, strongly expressed in the majority of monocytes. Since CD14 is a glycosylphosphatidyl-inositol (GPI)-anchor protein without a cytoplasmic tail, it has been suggested that additional signalling receptors co-associate with CD14 in order to initiate signal transduction cascades. Here we show that after ligand binding in human blood monocytes, the b2-integrin CD11b/CD18 forms clusters with CD14, after ligand binding. Thus, in response to LPS stimulation a receptor complex is formed in the plane of the plasma membrane which may be of central importance for cellular responses to LPS. We also show that another physiologically relevant ligand of CD14, ceramide, which is structurally similar to LPS, induces a complex of CD14 and CD11b/CD18 after binding to CD14.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Cholesterol
Signal Transduction
Megjelenés:Single Molecules. - 2 : 2 (2001), p. 113-115. -
További szerzők:Kapinsky, Michael Orsó Evelyn Schutz, G. Schindler, Hansgeorg Nagy Péter (1971-) (biofizikus) Rothe, Gregor Szöllősi János (1953-) (biofizikus) Damjanovich Sándor (1936-2017) (biofizikus) Schmitz, Gerd
Internet cím:elektronikus változat
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4.

001-es BibID:BIBFORM076284
035-os BibID:(WoS)000454523000111 (Scopus)85057896269 (cikkazonosító)3161
Első szerző:Szabados-Fürjesi Péter (vegyész)
Cím:Synthesis, in Vitro Biological Evaluation, and Oxidative Transformation of New Flavonol Derivatives: The Possible Role of the Phenyl-N,N-Dimethylamino Group / Szabados-Furjesi Peter, Pajtas David, Barta Aliz, Csepanyi Evelin, Kiss-Szikszai Attila, Tosaki Arpad, Bak Istvan
Dátum:2018
ISSN:1420-3049
Megjegyzések:Six new flavonols (6a?f) were synthesized with Claisen?Schmidt and Suzuki reactions and they were fully characterized by spectroscopic methods. In order to evaluate their antioxidant activities, their oxygen radical absorption capacity and ferric reducing antioxidant power were measured, along with their free radical scavenging activity against 2,2'-azino-bis(3- ethylbenzothiazoline-6-sulphonic acid) and 2,2-diphenyl-1-picrylhydrazylradicals. In addition, their cytotoxicity on H9c2 cardiomyoblast cells was also assessed by a 3-(4,5-dimethylthiazol-2-yl)- 2,5-diphenyltetrazolium bromide assay. Compounds bearing the phenyl-N,N-dimethylamino group (6a, 6c, and 6e) exhibited promising antioxidant potency and did not have any cytotoxic effect. After a consideration of these data, the oxidative transformation of the 6c compound was investigated in vitro with a chemical Fenton reaction and the identification of the formed oxidation products was performed by mass spectrometry. Two potential metabolites were detected. Based on these results, compound 6c can be a model compound for future developments. Overall, this work has proved the involvement of the phenyl-N,N-dimethylamino group in the antioxidant activity of flavonols.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
antioxidant
flavonoid
flavonol
cytotoxicity
oxidative metabolism
Megjelenés:Molecules. - 23 : 12 (2018), p. 1-15. -
További szerzők:Pajtás Dávid (1987-) (vegyész) Barta Aliz Csépányi Evelin (1985-) (gyógyszerész) Kiss-Szikszai Attila (1975-) (vegyész) Tósaki Árpád (1958-) (kísérletes farmakológus, gyógyszerész) Bak István (1975-) (vegyész, analitikus, farmakológus)
Pályázati támogatás:GINOP-2.3.2-15-2016-00044
GINOP
EFOP-3.6.1-16-2016-00022
EFOP
-4.2.4. A/2-11-1-2012-0001
TÁMOP
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5.

001-es BibID:BIBFORM113864
035-os BibID:(cikkazonosító)5898 (WoS)001045616200001 (Scopus)85167818337
Első szerző:Ujlaki Gyula (molekuláris biológus)
Cím:Identification of bacterial metabolites modulating breast cancer cell proliferation and epithelial-mesenchymal transition / Ujlaki Gy., Kovács T., Vida A., Kókai E., Rauch B., Schwarcz Sz., Mikó E., Janka E., Sipos A., Hegedűs Cs., Uray K., Nagy P., Bai P.
Dátum:2023
ISSN:1420-3049
Megjegyzések:Breast cancer patients are characterized by the oncobiotic transformation of multiple microbiome communities, including the gut microbiome. Oncobiotic transformation of the gut microbiome impairs the production of antineoplastic bacterial metabolites. The goal of this study was to identify bacterial metabolites with antineoplastic properties. We constructed a 30-member bacterial metabolite library and screened the library compounds for effects on cell proliferation and epithelial-mesenchymal transition. The metabolites were applied to 4T1 murine breast cancer cells in concentrations corresponding to the reference serum concentrations. However, yric acid, glycolic acid, d-mannitol, 2,3-butanediol, and trans-ferulic acid exerted cytostatic effects, and 3-hydroxyphenylacetic acid, 4-hydroxybenzoic acid, and vanillic acid exerted hyperproliferative effects. Furthermore, 3-hydroxyphenylacetic acid, 4-hydroxybenzoic acid, 2,3-butanediol, and hydrocinnamic acid inhibited epithelial-to-mesenchymal (EMT) transition. We identified redox sets among the metabolites (d-mannitol-d-mannose, 1-butanol-butyric acid, ethylene glycol-glycolic acid-oxalic acid), wherein only one partner within the set (d-mannitol, butyric acid, glycolic acid) possessed bioactivity in our system, suggesting that changes to the local redox potential may affect the bacterial secretome. Of the nine bioactive metabolites, 2,3-butanediol was the only compound with both cytostatic and anti-EMT properties.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Molecules. - 28 : 15 (2023), p. 1-18. -
További szerzők:Kovács Tünde (1990-) (biokémikus, molekuláris biológus) Vida András (1979-) (molekuláris biológus, genetikus) Kókai Endre (1971-) (biokémikus, biológus) Rauch Boglárka (1995-) (molekuláris biológus) Schwarcz Szandra (1988-) (PhD hallgató) Mikó Edit (1980-) (biológus) Janka Eszter Anna (1989-) (bőrgyógyász, népegészségügyi szakember) Sipos Adrienn (1984-) (biológus, biotechnológus) Hegedűs Csaba (1980-) (biokémikus, molekuláris biológus) Uray Karen (1964-) (biokémikus) Nagy Péter (1971-) (biofizikus) Bai Péter (1976-) (biokémikus)
Pályázati támogatás:K123975
NKFIH
K142141
NKFIH
FK128387
NKFIH
POST-COVID2021-33
Egyéb
TKP2021-EGA-19
Egyéb
TKP2021-EGA-20
Egyéb
TKP2021-EGA
Egyéb
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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