CCL

Összesen 7 találat.
#/oldal:
Részletezés:
Rendezés:

1.

001-es BibID:BIBFORM095750
035-os BibID:(cikkazonosító)7776 (scopus)85110606156 (wos)000681958900001
Első szerző:Angyal Ágnes (molekuláris biológus)
Cím:Anandamide Concentration-Dependently Modulates Toll-Like Receptor 3 Agonism or UVB-Induced Inflammatory Response of Human Corneal Epithelial Cells / Ágnes Angyal, Zsófia Pénzes, Shahrzad Alimohammadi, Dorottya Horváth, Lili Takács, György Vereb, Barbara Zsebik, Tamás Bíró, Kinga Fanni Tóth, Erika Lisztes, Balázs István Tóth, Attila Oláh, Attila Gábor Szöllősi
Dátum:2021
ISSN:1661-6596 1422-0067
Megjegyzések:Photodamage-induced and viral keratitis could benefit from treatment with novel nonsteroid anti-inflammatory agents. Therefore, we determined whether human corneal epithelial cells (HCECs) express members of the endocannabinoid system (ECS), and examined how the endocannabinoid anandamide (AEA, N-arachidonoyl ethanolamine) influences the Toll-like receptor 3 (TLR3) agonism- or UVB irradiation-induced inflammatory response of these cells. Other than confirming the presence of cannabinoid receptors, we show that endocannabinoid synthesizing and catabolizing enzymes are also expressed in HCECs in vitro, as well as in the epithelial layer of the human cornea in situ, proving that they are one possible source of endocannabinoids. p(I:C) and UVB irradiation was effective in promoting the transcription and secretion of inflammatory cytokines. Surprisingly, when applied alone in 100 nM and 10 ?M, AEA also resulted in increased pro-inflammatory cytokine production. Importantly, AEA further increased levels of these cytokines in the UVB model, whereas its lower concentration partially prevented the transcriptional effect of p(I:C), while not decreasing the p(I:C)-induced cytokine release. HCECs express the enzymatic machinery required to produce endocannabinoids both in vitro and in situ. Moreover, our data show that, despite earlier reports about the anti-inflammatory potential of AEA in murine cornea, its effects on the immune phenotype of human corneal epithelium may be more complex and context dependent.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
endocannabinoid
inflammation
anandamide
TLR3
cornea
Megjelenés:International Journal Of Molecular Sciences. - 22 : 15 (2021), p. 7776. -
További szerzők:Pénzes Zsófia (1992-) (klinikai laboratóriumi kutató) Alimohammadi, Shahrzad (1991-) (Gyógyszerész) Horváth Dorottya (1994-) (molekuláris biológus) Takács Lili (1969-) (szemész) Vereb György (1965-) (biofizikus, orvos) Zsebik Barbara (1977-) (biofizikus) Bíró Tamás (1968-) (élettanász) Tóth Kinga Fanni (1992-) (molekuláris biológus, élettanász) Lisztes Erika (1986-) (élettanász) Tóth István Balázs (1978-) (élettanász) Oláh Attila (1984-) (élettanász) Szöllősi Attila Gábor (1982-) (élettanász)
Pályázati támogatás:EFOP-3.6.3-VEKOP-16-2017-00009
EFOP
GINOP-2.3.2-15-2016-00050
GINOP
GINOP-2.3.2-15-2016-00020
GINOP
ÚNKP-20-5-DE-100
Egyéb
ÚNKP-20-5-DE-422
Egyéb
FK 125053
NKFIH
PD 128034
NKFIH
K 135938
NKFIH
FK 134235
NKFIH
FK 134993
NKFIH
FK 134725
NKFIH
PD 134791
NKFIH
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

2.

001-es BibID:BIBFORM103569
035-os BibID:(WoS)000851426500001 (Scopus)85146322280
Első szerző:Rebenku István
Cím:Taking molecular pathology to the next level : whole slide multicolor confocal imaging with the Pannoramic Confocal digital pathology scanner / István Rebenku, Ferenc A. Bartha, Tamás Katona, Barbara Zsebik, Géza Antalffy, Lili Takács, Béla Molnár, György Vereb
Dátum:2023
ISSN:1552-4922 1552-4930
Megjegyzések:Abstract The emergence and fast advance of digital pathology allows the acquisition, digital storage, interactive recall and analysis of morphology at the tissue level. When applying immunohistochemistry, it also affords the correlation of morphology with the expression of one or two specific molecule of interest. The rise of fluorescence pathology scanners expands the number of detected molecules based on multiplex labelling. The Pannoramic Confocal (created by 3DHistech, Hungary) is a first-of-the-kind digital pathology scanner that affords not only multiplexed fluorescent detection on top of conventional transmission imaging, but also confocality. We have benchmarked this scanner in terms of stability, precision, light efficiency, linearity and sensitivity. X-Y stability and relocalisation precision were well below resolution limit (?50 nm). Light throughput in confocal mode was 4-5 times higher than that of a point scanning confocal microscope, yielding similar calculated confocal intensities but with the potential for improving signal to noise ratio or scan speed. Response was linear with R2 ?0.9996. Calibrated measurements showed that using indirect labeling ? 2000 molecules per cell could be well detected and imaged on the cell surface. Both standard-based and statistical post-acquisition flatfield corrections are implemented. We have also measured the point spread function (PSF) of the instrument. The dimensions of the PSF are somewhat larger and less symmetric than of the theoretical PSF of a conventional CLSM, however, the spatial homogeneity of these parameters allows for obtaining a specific system PSF for each optical path and using it for optional on-the-fly deconvolution. In conclusion, the Pannoramic Confocal provides sensitive, quantitative widefield and confocal detection of multiplexed fluorescence signals, with optical sectioning and 3D reconstruction, in addition to brightfield transmission imaging. High speed scanning of large samples, analysis of tissue heterogeneity, and detection of rare events open up new ways for quantitatively analyzing tissue sections, organoid cultures or large numbers of adherent cells.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
3-dimensional virtual slide
deconvolution
digital pathology
multispectral fluorescence imaging
widefield aperture correlated confocal imaging
Megjelenés:Cytometry Part A. - 103 : 3 (2023), p. 198-207. -
További szerzők:Bartha Ferenc Katona Tamás (1991-) (informatikus) Zsebik Barbara (1977-) (biofizikus) Antalffy Géza Takács Lili (1969-) (szemész) Molnár Béla Vereb György (1965-) (biofizikus, orvos)
Pályázati támogatás:GINOP-2.2.1-15-2017-00072
GINOP
OTKA K135938
OTKA
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

3.

001-es BibID:BIBFORM086182
Első szerző:Szöőr Árpád (orvos)
Cím:Trastuzumab Derived HER2-specific CARs for the Treatment of Trastuzumab-Resistant Breast Cancer : CAR T Cells Penetrate and Eradicate Tumors That Are Not Accessible to Antibodies / Árpád Szöőr, Gábor Tóth, Barbara Zsebik, Viktória Szabó, Zelig Eshhar, Hinrich Abken, György Vereb
Dátum:2020
ISSN:0304-3835
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
kiméra antigén receptor
HER2 pozitív emlőrák
sejtterápia
Megjelenés:Cancer Letters. - 484 (2020), p. 1-8. -
További szerzők:Tóth Gábor (1989-) (általános orvos) Zsebik Barbara (1977-) (biofizikus) Szabó Viktória Eshhar, Zelig Abken, Hinrich Vereb György (1965-) (biofizikus, orvos)
Pályázati támogatás:UNKP
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

4.

001-es BibID:BIBFORM069842
Első szerző:Tóth Enikő
Cím:Limbal and Conjunctival Epithelial Cell Cultivation on Contact Lenses : different Affixing Techniques and the Effect of Feeder Cells / Tóth Enikö, Beyer Dániel, Zsebik Barbara, Vereb György, Takács Lili
Dátum:2017
ISSN:1542-2321 1542-233X
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Eye And Contact Lens - Science And Clinical Practice 43 : 3 (2017), p. 162-167. -
További szerzők:Beyer Dániel (1982-) (molekuláris biológus) Zsebik Barbara (1977-) (biofizikus) Vereb György (1965-) (biofizikus, orvos) Takács Lili (1969-) (szemész)
Pályázati támogatás:TÁMOP 4.2.1./B-09/1/KONV-2010-0007
TÁMOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

5.

001-es BibID:BIBFORM069843
Első szerző:Zsebik Barbara (biofizikus)
Cím:Cultivation of Human Oral Mucosal Explants on Contact Lenses / Zsebik Barbara, Ujlaky-Nagy László, Losonczy Gergely, Vereb György, Takács Lili
Dátum:2017
ISSN:0271-3683
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Current Eye Research. - 42 : 8 (2017), p. 1094-1099. -
További szerzők:Ujlaky-Nagy László (1977-) (biofizikus) Losonczy Gergely (1977-) (szemész) Vereb György (1965-) (biofizikus, orvos) Takács Lili (1969-) (szemész)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

6.

001-es BibID:BIBFORM005110
035-os BibID:(scopus)33644694046 (wos)000236477900020
Első szerző:Zsebik Barbara (biofizikus)
Cím:Hsp90 inhibitor 17-AAG reduces ErbB2 levels and inhibits proliferation of the trastuzumab resistant breast tumor cell line JIMT-1 / Zsebik, B., Citri, A., Isola, J., Yarden, Y., Szollosi, J., Vereb, G.
Dátum:2006
ISSN:165-2478 (Print)
Megjegyzések:ErbB2, a member of the EGF receptor family of tyrosine kinases is overexpressed on many tumor cells of epithelial origin and is the molecular target of trastuzumab (Herceptin), the first humanized antibody used in the therapy of solid tumors. Trastuzumab, which is thought to act, at least in part, by downregulating ErbB2 expression is only effective in approximately 30-40% of ErbB2 positive breast tumors. Geldanamycin and its derivative 17-AAG are potential antitumor agents capable of downregulating client proteins of Hsp90, including ErbB2. To investigate the ability of 17-AAG to downregulate ErbB2 in trastuzumab resistant breast cancer cells and the possibility of 17-AAG and trastuzumab potentiating each other's effect, the recently established trastuzumab resistant breast cancer cell line, JIMT-1 was compared to the known trastuzumab sensitive SKBR-3 line. Baseline and stimulus-evoked dimerization and activation levels of ErbB2, and the effects of trastuzumab and 17-AAG alone and in combination on cell proliferation and apoptosis, as well as on ErbB2 expression and phosphorylation have been measured. Baseline activation and amenability to activation and downregulation by trastuzumab was much lower in the resistant line. However, 17-AAG enhanced ErbB2 homodimerization after 5-10 min of treatment in both cell lines, and decreased proliferation with an IC50 of 70 nM for SKBR-3 and 10nM for JIMT-1. Thus, 17-AAG may be a useful drug in trastuzumab resistant ErbB2 overexpressing tumors. The antiproliferative effect of 17-AAG was positively correlated with phosphorylation and downregulation of ErbB2 and was dominated by apoptosis, although, especially at higher doses, necrosis was also present. Interestingly, IC50 values for ErbB2 downregulation and phosphorylation, in the 30-40 nM range, were not significantly different for the two cell lines. This observation and the negative correlation between resting ErbB2 levels and the antiproliferative effect of 17-AAG may indicate that activation of ErbB2 to some extent could counteract the overall cytostatic effect, especially at higher levels of ErbB2 expression. The usual therapeutic dose of trastuzumab did not change the IC50 of 17-AAG on the proliferation of either cell line, but nevertheless decreased overall ErbB2 phosphorylation and at low doses of 17-AAG further decreased cell growth in the sensitive SKBR-3, thus trastuzumab may be a good combination partner to counteract undesired activating effects of 17-AAG.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
analogs and derivatives
antagonists and inhibitors
Antibodies
Antibodies,Monoclonal
Antineoplastic Agents
Apoptosis
Benzoquinones
Biophysics
Breast Neoplasms
Cell Line
Cell Line,Tumor
Cell Proliferation
Cells
Dimerization
drug effects
Drug Resistance,Neoplasm
drug therapy
enzymology
HSP90 Heat-Shock Proteins
Humans
Hungary
Lactams,Macrocyclic
metabolism
Necrosis
pharmacology
Phosphorylation
Protein Kinase Inhibitors
Proteins
Receptor,erbB-2
Research
Rifabutin
Support
therapeutic use
therapy
Megjelenés:Immunology Letters. - 104 : 1-2 (2006), p. 146-155. -
További szerzők:Citri, Ami Isola, Jorma Yarden, Yosef Szöllősi János (1953-) (biofizikus) Vereb György (1965-) (biofizikus, orvos)
Internet cím:elektronikus változat
DOI
Borító:

7.

001-es BibID:BIBFORM002772
Első szerző:Zsebik Barbara (biofizikus)
Cím:Photodynamic therapy combined with a cysteine proteinase inhibitor synergistically decrease VEGF production and promote tumour necrosis in a rat mammary carcinoma / Zsebik B., Symonowicz K., Saleh Y., Ziolkowski P., Bronowicz A., Vereb G.
Dátum:2007
Megjegyzések:Photodynamic therapy (PDT) and inhibition of cathepsin B proteases by cystatin (cysteine proteinase inhibitor, CPI) are potential new tumour treatment modalities. We have investigated the efficacy of PDT and CPI alone and in combination on a solid mammary carcinoma transplanted into Wistar rats. MATERIALS AND METHODS: Intraperitoneally injected single doses of chlorine e6 or HpD as photosensitizers were excited at 630 nm (90 J/cm(2)). CPI (500 micro g per animal) was injected around the tumour daily during the 8-day treatment. Inoculation of tumour was either on day 1 of the protocol, or 8 days before. On day 8, tumour size was measured, tumour necrosis and vascularization were determined based on haematoxylin and eosin (H&E)-stained sections and serum vascular endothelial growth factor (VEGF) levels measured using an enzyme-linked immunosorbent assay kit. RESULTS: No differences (two-way anova) were found for treatments started with various time lags. At doses where CPI or PDT alone had no or negligible effect, their combination caused a marked (P < 0.001) decrease in serum VEGF, paralleled by a significant decrease in tumour size and number of capillary vessels, and a significant increase in necrosis (up to 80% of the tumour tissue). CONCLUSIONS: The combination of PDT and CPI could be a useful approach in tumour therapy as the two agents appear to be synergistic and probably decrease VEGF production by the tumour tissue
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Animal
Animals
Biophysics
biosynthesis
blood supply
Capillaries
Carcinoma
Comparative Study
Cystatins
Cysteine
Cysteine Proteinase Inhibitors
Dose-Response Relationship,Drug
drug therapy
Enzyme-Linked Immunosorbent Assay
Female
Hungary
Mammary Neoplasms,Experimental
methods
Necrosis
Neoplasm Transplantation
pathology
pharmacology
Photochemotherapy
Rats
Rats,Wistar
Research
Support
therapeutic use
therapy
Vascular Endothelial Growth Factor A
Megjelenés:Cell Proliferation. - 40 : 1 (2007), p. 38-49. -
További szerzők:Symonowicz, K. Saleh, Y. Ziolkowski, P. Bronowicz, A. Vereb György (1965-) (biofizikus, orvos)
Internet cím:DOI
elektronikus változat
Borító:
Rekordok letöltése1