CCL

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1.

001-es BibID:BIBFORM058444
Első szerző:Aszalos Adorján
Cím:An early cellular effect of Cyclosporin A is membrane potential change in human and mouse lymphocytes / A. Aszalos, S. Damjanovich, M. Balázs, L. Mátyus, L. Trón, S. M. Mulhern, A. D. Hess
Dátum:1985
Tárgyszavak:Orvostudományok Elméleti orvostudományok könyvfejezet
Membrane
Potential
Lymphocytes
Megjelenés:Recent Advances in Chemotherapy / ed. Ishigami J. - p. 2578-2579.
További szerzők:Damjanovich Sándor (1936-2017) (biofizikus) Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Mátyus László (1956-) (biofizikus) Trón Lajos (1941-) (biofizikus) Mulhern, Sally Hess, A.
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2.

001-es BibID:BIBFORM058446
Első szerző:Balázs Margit (sejtbiológus, molekuláris genetikus)
Cím:A biophysical approach of cell surface phenomena and transmembrane signaling / Margit Balázs, L. Mátyus, J. Szöllősi, L. Trón, S. Damjanovich
Dátum:1991
ISBN:963 05 5926 9
Tárgyszavak:Orvostudományok Elméleti orvostudományok könyvfejezet
Cell
Surface
Transmembrane
Megjelenés:The Physical Aspect of the Living Cell / ed. by József Tigyi, Miklós Kellermayer, Carlton F. Hazlewood. - p. 271-298. -
További szerzők:Mátyus László (1956-) (biofizikus) Szöllősi János (1953-) (biofizikus) Trón Lajos (1941-) (biofizikus) Damjanovich Sándor (1936-2017) (biofizikus)
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3.

001-es BibID:BIBFORM006025
Első szerző:Balázs Margit (sejtbiológus, molekuláris genetikus)
Cím:Fluorescent tetradecanoylphorbol acetate : a novel probe of phorbol ester binding domains / Balázs, M., Szöllösi, J., Lee, W. C., Haugland, R. P., Guzikowski, A. P., Fulwyler, M. J., Damjanovich, S., Feuerstein, B. G., Pershadsingh, H. A.
Dátum:1991
Megjegyzések:Protein kinase C (PKC) has a prominent role in signal transduction of many bioactive substances. We synthesized the fluorescent derivative, phorbol-13-acetate-12-N-methyl-N-4-(N,N'-di(2-hydroxyethyl)amino)-7-n itr obenz-2-oxa-1,3-diazole-aminododecanoate (N-C12-Ac(13)) of 12-O-tetradecanoylphorbol-13-acetate (TPA) to monitor the location of phorbol ester binding sites and evaluate its potential use as a probe of PKC in viable cells. The excitation maximum wavelength of N-C12-Ac(13) is close to 488 nm, facilitating its use in argon-ion laser flow and imaging cytometry. When incubated with 100 nM N-C12-Ac(13) at 25 degrees C, P3HR-1 Burkitt lymphoma cells accumulated the dye rapidly, reaching maximum fluorescence within 25 min, 20-fold above autofluorescence. Addition of unlabeled TPA significantly decreased the fluorescence of N-C12-Ac(13) stained cells in a dose-dependent manner indicating specific displacement of the bound fluoroprobe. Competitive displacement of [3H]-phorbol-12,13-dibutyrate ([3H]-PBu2) from rat brain cytosol with N-C12-Ac(13) gave an apparent dissociation constant (Kd) of 11 nM. N-C12-Ac(13) possessed biological activity similar to TPA. Like TPA (final concentration 65 nM) N-C12-Ac(13), at a lower concentration (51 nM), induced expression of Epstein-Barr viral glycoprotein in P3HR-1 cells, differentiation of promyelocytic HL60 cells, and caused predicted changes in the mitotic cycle of histiocytic DD cells. Microspectrofluorometric images of single cells labeled with N-C12-Ac(13) showed bright fluorescence localized intracellularly and dim fluorescence in the nuclear region, consistent with dye binding mainly to cytoplasmic structures and/or organelles and being mostly excluded from the nucleus. Because of the high level of non-specific binding of N-C12-Ac(13), this probe is not ideal for visualizing PKC in intact cells, but would be a valuable fluoroprobe to investigate the kinetic properties of purified PKC. Also, knowledge gained from these studies allows us to predict structures of fluorescent phorbols likely to have less non-specific binding and, consequently, be potentially useful for monitoring PKC in viable cells.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
analysis
Animal
Antigens,Viral
Binding Sites
Brain Chemistry
Cell Cycle
chemical synthesis
Cytosol
Dyes
Female
Flow Cytometry
Fluorescence
Fluorescence Polarization
Fluorescent Dyes
Gene Expression
Herpesvirus 4,Human
Image Processing,Computer-Assisted
immunology
metabolism
Oxadiazoles
pharmacology
Phorbol Esters
Protein Kinase C
Rats
Rats,Inbred Strains
Signal Transduction
Support,Non-U.S.Gov't
Support,U.S.Gov't,P.H.S.
Tetradecanoylphorbol Acetate
Tumor Cells,Cultured
Megjelenés:Journal of Cellular Biochemistry. - 46 : 3 (1991), p. 266-276. -
További szerzők:Szöllősi János (1953-) (biofizikus) Lee, W. C. Haugland, R. P. Guzikowski, A. P. Fulwyler, Mack J. Damjanovich Sándor (1936-2017) (biofizikus) Feuerstein, Burt G. Pershadsingh, Harrihar A.
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4.

001-es BibID:BIBFORM005965
Első szerző:Balázs Margit (sejtbiológus, molekuláris genetikus)
Cím:Accessibility of cell surface thiols in human lymphocytes is altered by ionophores or OKT-3 antibody / Margit Balázs, János Matkó, János Szöllösi, László Mátyus, Mack J. Fulwyler, Sándor Damjanovich
Dátum:1986
Megjegyzések:The accessibility of cell surface sulfhydryl groups in human peripheral lymphocytes was investigated with 5,5'-dithiobis-(2-nitrobenzoic acid) in the presence and absence of ionophore antibiotics and the monoclonal antibody, OKT-3. Only a few accessible protein thiols have been found on the cells as demonstrated by labeling with a fluorescent non-penetrating thiol-marker, monobromotrimethyl-ammoniobimane and the subsequent gel electrophoretic analysis of the protein pattern. Difference spectrophotometric measurement of thiol-DTNB reaction revealed that ionophores altering the transmembrane potential induced an enhanced cell surface thiol-exposure on the minute time scale. The effect showed a dependence on the external concentration of the cations. The binding of monoclonal antibody, OKT-3, directed against T3 complexes, resulted in a similar, concentration-dependent increase of thiol-accessibility. These data are interpreted as early membrane-effects of ionophores and the specific antibody including changes in the conformational equilibrium or vertical displacements of certain membrane proteins. These events are likely to be coupled to the changes in the transmembrane potential of the lymphocytes.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Ammonium Compounds
analysis
Antibiotics
Antibodies,Monoclonal
blood
Cell Membrane
Dithionitrobenzoic Acid
drug effects
Electrophoresis,Polyacrylamide Gel
Human
Ionophores
Lymphocytes
Membrane Proteins
metabolism
pharmacology
Spectrometry,Fluorescence
Sulfhydryl Compounds
Support,Non-U.S.Gov't
Support,U.S.Gov't,P.H.S.
Megjelenés:Biochemical and Biophysical Research Communications. - 140 : 3 (1986), p. 999-1006. -
További szerzők:Matkó János (1952-) (biológus) Szöllősi János (1953-) (biofizikus) Mátyus László (1956-) (biofizikus) Fulwyler, Mack J. Damjanovich Sándor (1936-2017) (biofizikus)
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DOI
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5.

001-es BibID:BIBFORM005928
Első szerző:Balázs Margit (sejtbiológus, molekuláris genetikus)
Cím:Effect of specific antibodies on membrane microviscosity of human lymphocytes / Balazs Margit, Szöllösi Janos, Somogyi Béla, Damjanovich Sándor
Dátum:1979
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
Antibodies
Cell Membrane
drug effects
Globulins
Human
Hungary
immunology
Lymphocytes
ultrastructure
Viscosity
Megjelenés:Acta Biochimica et Biophysica Academiae Scientiarum Hungaricae. - 14 : 4 (1979), p. 213-216. -
További szerzők:Szöllősi János (1953-) (biofizikus) Somogyi Béla (1945-2006) (biofizikus) Damjanovich Sándor (1936-2017) (biofizikus)
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6.

001-es BibID:BIBFORM006027
Első szerző:Bene László (biofizikus)
Cím:Lateral organization of the ICAM-1 molecule at the surface of human lymphoblasts : a possible model for its co-distribution with the IL-2 receptor, class I and class II HLA molecules / Bene L., Balázs M., Matkó J., Möst J., Dierich M. P., Szöllösi J., Damjanovich S.
Dátum:1994
Megjegyzések:Lateral distribution of the ICAM-1 molecule and its topological relationship (mutual proximity) to the heavy and light chains of class I HLA molecules, HLA-DR and interleukin-2 receptor alpha-chain (IL-2R alpha) were studied in the plasma membrane of HUT-102B2 T and JY B lymphoblastoid cell lines by the technique of flow cytometric energy transfer (FCET). Effects of adherency and treatments with recombinant interferon-gamma or tumor necrosis factor-alpha on the relative expression level of ICAM-1 to the above cell surface proteins were also investigated. While the cytokines did not significantly affect the ICAM-1 level of either cell line, an increased ICAM-1 expression was found on adherent JY cells. The ICAM-1 expression varied significantly with the cell cycle and culture conditions, as well. The statistical analysis of the differences observed in the energy transfer efficiency histograms resulted in a possible model of lateral co-distribution of these proteins in the plasma membrane. These two-dimensional patterns proved to be different for T and B lymphoma lines. ICAM-1 molecules showed a high degree of self-association on HUT-102B2 (T) cells, while they were mainly expressed as monomers on the surface of JY (B) cells. Both cells showed a significant (ca. 30%) difference between densities of the heavy and light chains of class I HLA antigen, suggesting a substantial amount of beta 2-microglobulin free heavy chains on these cell lines. The class I HLA molecules also showed partial self-association, but on both cell lines. The beta 2-microglobulin and the heavy chain of the class I HLA showed strongly different proximities to the IL-2R alpha, HLA-DR and ICAM-1 molecules, indicating that their orientations relative to the other proteins are dissimilar. IL-2R alpha molecules of the HUT-102B2 (T) cells are located mostly in the vicinity of the beta 2-microglobulin. In contrast, the local density of HLA-DR antigens is higher in the proximity of the heavy chain than in the vicinity of the beta 2-microglobulin. The possible functional significance of these protein patterns is also discussed herein.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
analysis
Antibodies,Monoclonal
B-Lymphocyte Subsets
beta 2-Microglobulin
Cell Adhesion
Cell Adhesion Molecules
Cell Cycle
Cell Line
Energy Transfer
Flow Cytometry
Histocompatibility Antigens Class I
HLA Antigens
HLA-D Antigens
HLA-DR Antigens
Human
Hungary
immunology
Intercellular Adhesion Molecule-1
Interferon Type II
Interleukin-2
Light
physiology
Receptors,Interleukin-2
Support,Non-U.S.Gov't
Support,U.S.Gov't,Non-P.H.S.
T-Lymphocyte Subsets
Tumor Necrosis Factor
Megjelenés:European Journal of Immunology. - 24 : 9 (1994), p. 2115-2123. -
További szerzők:Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Matkó János (1952-) (biológus) Most, J. Dierich, Manfred P. Szöllősi János (1953-) (biofizikus) Damjanovich Sándor (1936-2017) (biofizikus)
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7.

001-es BibID:BIBFORM004939
Első szerző:Bene László (biofizikus)
Cím:Major histocompatibility complex class I protein conformation altered by transmembrane potential changes / Bene, L., Szollosi, J., Balazs, M., Matyus, L., Gaspar, R., Ameloot, M., Dale, R. E., Damjanovich, S.
Dátum:1997
ISSN:0196-4763
Megjegyzések:The nature of charge distributions in membrane-bound macromolecular structures renders them susceptible to interaction with transmembrane potential fields. As a result, conformational changes in such species may be expected to occur when this potential is altered. We have detected reversible conformational change in the major histocompatibility complex (MHC) class I antigen in the plasma membrane of human JY cells, as monitored by flow-cytometric resonance energy-transfer, upon reduction of the transmembrane potential (depolarization). This change increased the intramolecular energy-transfer efficiency between fluorescent donor- and acceptor-labeled monoclonal antibodies directed, respectively, to epitopes on the light (beta 2-microglobulin) and the heavy chains of the MHC class I antigen. Repolarization of the depolarized samples restored the energy-transfer efficiency to the original values measured before depolarization. Depolarization caused similar relative changes in fluorescence resonance energy-transfer efficiency when Fab fragments were used for labeling MHC class I complex, suggesting that the observed phenomenon is not restricted to whole monoclonal antibodies.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Antibodies, Monoclonal
Antigen Presentation
B-Lymphocytes
beta 2-Microglobulin
Cell Membrane
chemistry
cytology
Dyes
Energy Transfer
Enzyme Activation
Flow Cytometry
Fluorescein-5-isothiocyanate
Fluorescence
Fluorescent Dyes
Histocompatibility Antigens Class I
Human
Hungary
immunology
Light
Major Histocompatibility Complex
Membrane Potentials
metabolism
methods
Na(+)-K(+)-Exchanging ATPase
Patch-Clamp Techniques
physiology
Protein Conformation
Rhodamines
Surface Properties
Megjelenés:Cytometry. - 27 : 4 (1997), p. 353-357. -
További szerzők:Szöllősi János (1953-) (biofizikus) Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Mátyus László (1956-) (biofizikus) Gáspár Rezső (1944-) (biofizikus) Ameloot, Marcel Dale, Robert E. Damjanovich Sándor (1936-2017) (biofizikus)
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8.

001-es BibID:BIBFORM081015
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Are lymphocytes excitable cells? / S. Damjanovich, Margit Balázs, J. Szöllősi
Dátum:1989
ISSN:0231-4428
Megjegyzések:Nerve and muscle cells are defined traditionally as excitable cells, due to their capacity to react to external stimuli with subsequent electric and/or mechanical responses. Another category of cells, eminently among them the round-shaped blood cells, in particular the best studied lymphocytes, are classified as non-excitable cells. We try to present evidence that lymphocytes may also be accepted as excitable cells. A bit far-reaching, further generalization could be formulated claiming that every cell can be considered as an excitable one.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Megjelenés:Acta Physica Hungarica. - 65 : 2-3 (1989), p. 349-353. -
További szerzők:Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Szöllősi János (1953-) (biofizikus)
Internet cím:DOI
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9.

001-es BibID:BIBFORM033287
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Protein dynamics and function / Sándor Damjanovich, Margit Balázs, János Szöllősi, Lajos Trón, Béla Somogyi
Dátum:1988
Tárgyszavak:Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
egyetemen (Magyarországon) készült közlemény
Megjelenés:Journal of Molecular Catalysis. - 47 : 2-3 (1988), p. 155-163. -
További szerzők:Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Szöllősi János (1953-) (biofizikus) Trón Lajos (1941-) (biofizikus) Somogyi Béla (1945-2006) (biofizikus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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10.

001-es BibID:BIBFORM006028
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Dynamic physical interactions of plasma membrane molecules generate cell surface patterns and regulate cell activation processes / Damjanovich S., Mátyus L., Balázs, M., Gáspár R., Krasznai Z., Pieri C., Szöllösi J., Trón L.
Dátum:1992
Megjegyzések:Molecular interaction and transmembrane signal transducing events generate a very dynamic and ever changing "pattern" in the plasma membranes. Lymphocytes, the key functional elements of the immune system, are eminently suited to be the primary targets to investigate these proximity, mobility, or other physical-chemical changes in their plasma membranes. Recently, a number of experiments suggested that processed peptides from antigens can bind specific components of MHC molecules (Elliott et al., 1991). This is certainly a way to alter their structure. Cell surface patterns of topological nature, assembly and disassembly of oligomeric receptor structure like the IL-2 receptor have been investigated by sophisticated biophysical techniques. The dynamic changes in the two-dimensional cell surface pattern and intramolecular conformational changes within this "larger" macro-pattern may have a strong regulatory role in signal transducing and intercellular recognition processes. Recent data on these problems are presented together with brief and critical discussions.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Animal
Cell Membrane
Human
Hungary
immunology
Lymphocyte Transformation
Lymphocytes
Membrane Proteins
Peptides
Signal Transduction
Megjelenés:Immunobiology. - 185 : 2-4 (1992), p. 337-349. -
További szerzők:Mátyus László (1956-) (biofizikus) Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Gáspár Rezső (1944-) (biofizikus) Krasznai Zoltán (1950-) (biofizikus) Pieri, Carlo Szöllősi János (1953-) (biofizikus) Trón Lajos (1941-) (biofizikus)
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11.

001-es BibID:BIBFORM005970
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Fluorescence double labeling and energy transfer in studying intracellular interactions / S. Damjanovich, B. Somogyi, M. Balazs, P. Kertai, I. Redai
Dátum:1980
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Animal
Binding Sites
Cells,Cultured
Chromatin
Dyes
Energy Transfer
Ethidium
Fluorescamine
Fluorescence
Fluorescent Dyes
Leukemia,Experimental
metabolism
methods
Mice
Rats
Staining and Labeling
Megjelenés:Antibiotics and Chemotherapy. - 28 (1980), p. 142-146. -
További szerzők:Somogyi Béla (1945-2006) (biofizikus) Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Kertai Pál (1927-2016) (népegészségügyi szakember) Rédai I.
Internet cím:elektronikus változat
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12.

001-es BibID:BIBFORM005968
035-os BibID:(scopus)0023260317
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Cyclosporin depolarizes human lymphocytes : earliest observed effect on cell metabolism / S. Damjanovich, A. Aszalos, S. A. Mulhern, J. Szollosi, M. Balazs, L. Tron, M. J. Fulwyler
Dátum:1987
Megjegyzések:Cyclosporin A (CsA) produced dose-dependent membrane depolarization of human peripheral blood lymphocytes. The phenomenon was investigated applying the membrane potential probe dihexyloxacarbocyanine iodide in a flow cytometer in combination with ionophores, hormones and monoclonal antibodies binding to different subclasses of lymphocytes and the anti-interleukin 2 receptor antibody. Human interferon-gamma abolished the depolarizing effect of cyclosporin on lymphocytes. Interleukin 2 caused depolarization and also enhanced the effect of CsA. OKT4 and OKT8 monoclonal antibodies slightly hindered depolarization by CsA while OKT3, OKT11 and OKIa1 antibodies had no such effect. Valinomycin decreased CsA's effect on the membrane potential while the ionophore A-23187 and ionomycin caused depolarizations that were additive with CsA's. CsA treatment released the isotope from 42K-loaded human lymphocytes in a dose-dependent fashion. CsA addition increased intracellular calcium content. CsA decreased the motional freedom of a spin probe in the membrane, but did not hinder the binding of fluoresceinated antibodies to the cell surface. These results suggest immediate alteration in membrane structure upon CsA treatment, causing potassium leakage and calcium ion uptake. These are the earliest detected effects of CsA on cells so far.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Antibodies,Monoclonal
blood
Calcium
Carbocyanines
Cell Membrane
classification
Cyclosporins
Cytoplasm
Dimethyl Sulfoxide
drug effects
Electron Spin Resonance Spectroscopy
Flow Cytometry
Human
immunology
Interferon Type II
Interleukin-2
Intracellular Membranes
Ion Channels
Ionomycin
Ionophores
Lymphocytes
Membrane Fluidity
Membrane Potentials
metabolism
methods
pharmacology
Potassium
Potassium Radioisotopes
Spectrometry,Fluorescence
ultrastructure
Valinomycin
Megjelenés:European Journal of Immunology. - 17 : 6 (1987), p. 763-768. -
További szerzők:Aszalos Adorján Mulhern, Sally Szöllősi János (1953-) (biofizikus) Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Trón Lajos (1941-) (biofizikus) Fulwyler, Mack J.
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