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1.

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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2.

001-es BibID:BIBFORM004703
035-os BibID:(scopus)0037013728 (wos)000176059200014
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Does mosaicism of the plasma membrane at molecular and higher hierarchical levels in human lymphocytes carry information on the immediate history of cells? / Damjanovich, S., Matyus, L., Damjanovich, L., Bene, L., Jenei, A., Matko, J., Gaspar, R., Szollosi, J.
Dátum:2002
Megjegyzések:A theoretical analysis of experimental data is presented in this mini-review on non-random homo- and hetero-associations of cell surface receptors, which can be recruited in the plasma membrane or at the surface of the rough endoplasmic reticulum during the protein synthesis. In the latter case, the likely genetic origin of these supramolecular formations is analyzed, contrasting this concept to the mobility of the cell surface proteins. A model is offered which, on the one hand, allows the mobility in a restricted way even among microdomain-confined receptor proteins through 'swapping partners'. On the other hand, the lack of mixing molecular components of protein clusters will be analyzed, when homo-and hetero-associations are studied through cell fusion experiments. The most frequently studied cell surface patterns have included lipid raft organized HLA class I and II, ICAM-1, tetraspan molecules, IL2 and IL15 and other receptors, as well. On the contrary coated pit-associated transferrin receptors would not mix with the above lipid raft associated receptor patterns, although transferrin receptor would readily oligomerize into homo-associates. The functional consequences of these superstructures are also analyzed. On the 30th anniversary of the Singer-Nicolson fluid mosaic membrane model one has to pay tribute to the authors, because of their deep insight emphasizing also the mosaicism of the membranes in general and that of the plasma membrane, in particular.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
analysis
Biophysics
Cell Fusion
Cells
Human
Hungary
Lymphocytes
Proteins
egyetemen (Magyarországon) készült közlemény
Megjelenés:Immunology Letters. - 82 : 1-2 (2002), p. 93-99. -
További szerzők:Mátyus László (1956-) (biofizikus) Damjanovich László (1960-) (általános sebész) Bene László (1963-) (biofizikus) Jenei Attila (1966-) (biofizikus) Matkó János (1952-) (biológus) Gáspár Rezső (1944-) (biofizikus) Szöllősi János (1953-) (biofizikus)
Internet cím:DOI
elektronikus változat
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3.

001-es BibID:BIBFORM004645
035-os BibID:(scopus)0033552675 (wos)000084290400003
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Two-dimensional receptor patterns in the plasma membrane of cells : a critical evaluation of their identification, origin and information content / Damjanovich, S., Bene, L., Matko, J., Matyus, L., Krasznai, Z., Szabo, G., Pieri, C., Gaspar, R., Szollosi, J.
Dátum:1999
Megjegyzések:A concise review is presented on the nature, possible origin and functional significance of cell surface receptor patterns in the plasma membrane of lymphoid cells. A special emphasize has been laid on the available methodological approaches, their individual virtues and sources of errors. Fluorescence energy transfer is one of the oldest available means for studying non-randomized co-distribution patterns of cell surface receptors. A detailed and critical description is given on the generation of two-dimensional cell surface receptor patterns based on pair-wise energy transfer measurements. A second hierarchical-level of receptor clusters have been described by electron and scanning force microscopies after immuno-gold-labeling of distinct receptor kinds. The origin of these receptor islands at a nanometer scale and island groups at a higher hierarchical (mum) level, has been explained mostly by detergent insoluble glycolipid-enriched complexes known as rafts, or detergent insoluble glycolipids (DIGs). These rafts are the most-likely organizational forces behind at least some kind of receptor clustering [K. Simons et al., Nature 387 (1997) 569]. These models, which have great significance in trans-membrane signaling and intra-membrane and intracellular trafficking, are accentuating the necessity to revisit the Singer-Nicolson fluid mosaic membrane model and substitute the free protein diffusion with a restricted diffusion concept.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Biophysics
Cells
Diffusion
Energy Transfer
Fluorescence
Hungary
Microscopy
Megjelenés:Biophysical Chemistry. - 82 : 2-3 (1999), p. 99-108. -
További szerzők:Bene László (1963-) (biofizikus) Matkó János (1952-) (biológus) Mátyus László (1956-) (biofizikus) Krasznai Zoltán (1950-) (biofizikus) Szabó Gábor (1953-) (biofizikus) Pieri, Carlo Gáspár Rezső (1944-) (biofizikus) Szöllősi János (1953-) (biofizikus)
Internet cím:DOI
elektronikus változat
Borító:

4.

001-es BibID:BIBFORM004628
035-os BibID:(scopus)0032190410 (wos)000076205700017
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Supramolecular receptor structures in the plasma membrane of lymphocytes revealed by flow cytometric energy transfer, scanning force- and transmission electron-microscopic analyses / Damjanovich, S., Matko, J., Matyus, L., Szabo, G. jr., Szollosi, J., Pieri, J. C., Farkas, T., Gaspar, R.
Dátum:1998
ISSN:196-4763
Megjegyzések:Receptors in the plasma membrane of blood cells in general and in that of lymphocytes in particular are supposed to move around in a random walk fashion relatively freely driven by thermal diffusion, as described by the Singer-Nicolson fluid mosaic membrane model. In this article we summarized data and techniques that indicated nonrandom codistribution patterns of receptor superstructures under conditions, where the generation of such molecular colocalizations by the methods themselves were excluded. Application of fluorescence energy transfer in a flow cytometer helped to analyze such codistribution patterns in cell populations. After normalizing energy transfer values for possible differences between labeling ratios of the targeting monoclonal antibodies and using the mean values of energy transfer distribution curves, two-dimensional receptor maps were generated from data obtained in a pair-wise fashion between receptors. Major histocompatibility complex (MHC) class I and II, intercellular adhesion molecule-1 (ICAM-1), TcR-CD3-CD4, tetraspan molecules (CD81, CD82, CD53), and the subunits of the multisubunit IL-2 receptor displayed nonrandom codistribution patterns sometimes with, but very frequently without induction by their ligand. Immunogold-bead "sandwich" labeling analyzed by atomic force microscopy has shown that such receptor "islands" existed also in "receptor-island-groups". This indicated the existence of nonrandom receptor distribution of MHC class I and II molecules also at an elevated hierarchical level. An analysis is given herein concerning a standardized approach. The apparent incompatibility of these supramolecular patterns with the Singer-Nicolson type "free-protein and lipid-mobility paradigm" was resolved by recommending an additional emphasis on the mosaicism of the membrane besides receptor mobility.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
analysis
Antibodies
Antigens
Antigen
blood
Monoclonal
chemistry
Diffusion
Dyes
Energy Transfer
Flow Cytometry
Fluorescence
Fluorescent Dyes
HLA Antigens
Human
Hungary
Immunoglobulins
Fab
Immunohistochemistry
immunology
Intercellular Adhesion Molecule-1
Interleukin-2
Lymphocytes
Macromolecular Systems
Major Histocompatibility Complex
Membrane Fluidity
methods
Microscopy
Atomic Force
Microspheres
Modelsl
Motion
Receptor-CD3 Complex
T-Cell
Receptors
Cell Surface
Support
Non-U.S.Gov't
Tumor Cells
Cultured
Megjelenés:Cytometry. - 33 : 2 (1998), p. 225-233. -
További szerzők:Matkó János (1952-) (biológus) Mátyus László (1956-) (biofizikus) Szabó Gábor (1953-) (biofizikus) Szöllősi János (1953-) (biofizikus) Pieri, J. C. Farkas Tamás (1971-) (biológus) Gáspár Rezső (1944-) (biofizikus)
Internet cím:DOI
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5.

001-es BibID:BIBFORM023492
Első szerző:Matkó János (biológus)
Cím:Analysis of cell surface molecular distributions and cellular signaling by flow cytometry / J. Matkó, L. Mátyus, J. Szöllősi, L. Bene, A. Jenei, P. Nagy, A. Bodnár, S. Damjanovich
Dátum:1994
ISSN:1053-0509
Megjegyzések:Flow cytometry is a fast analysis and separation method for large cell populations, based on collection and processing of optical signals gained on a cell-by-cell basis. These optical signals are scattered light and fluorescence. Owing to its unique potential ofStatistical data analysis and sensitive monitoring of (micro)heterogeneities in large cell populations, flow cytometry?in combination with microscopic imaging techniques?is a powerful tool to study molecular details of cellular signal transduction processes as well. The method also has a widespread clinical application, mostly in analysis of lymphocyte subpopulations for diagnostic (or research) purposes in diseases related to the immune system. A special application of flow cytometry is the mapping of molecular interactions (proximity relationships between membrane proteins) at the cell surface, on a cell-by-cell basis. We developed two approaches to study such questions; both are based ondistance-dependent quenching of excited state fluorophores (donors) by fluorescent or dark (nitroxide radical) acceptors via Förstertype dipole-dipole resonance energy transfer (FRET) and long-range electron transfer (LRET) mechanisms, respectively. A critical evaluation of these methods using donor- or acceptor-conjugated monoclonal antibodies (or their Fab fragments) to select the appropriate cell surface receptor or antigen will be presented in comparison with other approaches for similar purposes. The applicability of FRET and LRET for two-dimensional antigen mapping as well as for detection of conformational changes in extracellular domains of membrane-bound proteins is discussed and illustrated by examples of several lymphoma cell lines. Another special application area of flow cytometry is the analysis of different aspects of cellular signal transduction, e.g., changes of intracellular ion (Ca2+, H+, Na+) concentrations, regulation of ion channel activities, or more complex physiological responses of cell to external stimuli via correlated fluorescence and scatter signal analysis, on a cell-by-cell basis. This way different signaling events such as changes in membrane permeability, membrane potential, cell size and shape, ion distribution, cell density, chromatin structure, etc., can be easily and quickly monitored over large cell populations with the advantage of revealing microheterogeneities in the cellular responses. Flow cytometry also offers the possibility to follow the kinetics of slow (minute- and hour-scale) biological processes in cell populations. These applications are illustrated by the example of complex flow cytometric analysis of signaling in extracellular ATP-triggered apoptosis (programmed cell death) of murine thymic lymphocytes.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
fluorescence
flow cytometry
energy transfer
electron transfer
protein-protein interaction
signal transduction
egyetemen (Magyarországon) készült közlemény
Megjelenés:Journal Of Fluorescence 4 : 4 (1994), p. 303-314. -
További szerzők:Mátyus László (1956-) (biofizikus) Szöllősi János (1953-) (biofizikus) Bene László (1963-) (biofizikus) Jenei Attila (1966-) (biofizikus) Nagy Péter (1971-) (biofizikus) Dóczy-Bodnár Andrea (1970-) (biofizikus) Damjanovich Sándor (1936-2017) (biofizikus)
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DOI
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Borító:

6.

001-es BibID:BIBFORM006044
Első szerző:Matkó János (biológus)
Cím:Biphasic effect of extracellular ATP on the membrane potential of mouse thymocytes / Matko J., Nagy P., Panyi G., Vereb G. Jr., Bene L., Matyus L., Damjanovich S.
Dátum:1993
Megjegyzések:Extracellular ATP induced changes in the membrane potential of thymocytes from BALB/c mice were analyzed. At concentrations below 0.1 mM, ATP hyperpolarizes the cell membrane on the time scale of development of the Ca(2+)-signal. After a longer time hyperpolarization turns to depolarization. ATP concentrations higher than 0.5 mM caused rapid depolarization without previous hyperpolarization. Verapamil, quinine or the absence of extracellular Ca2+ blocked the hyperpolarization by ATP. In Na(+)-free medium the magnitude of depolarization decreased. Our data suggest a contribution of Ca(2+)-activated K+ channels to the hyperpolarizing effect of ATP at lower concentrations. The direction of membrane potential changes is determined presumably by a sensitive balance of ATP-receptor mediated Ca(2+)- and Na(+)-influx and the Ca(2+)-activated K(+)-channel activity.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Adenosine Triphosphate
Animal
Biophysics
Cell Membrane
cytology
drug effects
Hungary
Kinetics
Membrane Potentials
Mice
Mice,Inbred BALB C
pharmacology
physiology
Quinine
Support,Non-U.S.Gov't
Thymus Gland
Verapamil
Megjelenés:Biochemical and Biophysical Research Communications. - 191 : 2 (1993), p. 378-384. -
További szerzők:Nagy Péter (1971-) (biofizikus) Panyi György (1966-) (biofizikus) Vereb György (1965-) (biofizikus, orvos) Bene László (1963-) (biofizikus) Mátyus László (1956-) (biofizikus) Damjanovich Sándor (1936-2017) (biofizikus)
Internet cím:elektronikus változat
DOI
Intézményi repozitóriumban (DEA) tárolt változa
Borító:

7.

001-es BibID:BIBFORM006043
Első szerző:Matkó János (biológus)
Cím:Mapping of cell surface protein-patterns by combined fluorescence anisotropy and energy transfer measurements / Janos Matko, Attila Jenei, Laszlo Matyus, Marcel Ameloot, Sandor Damjanovich
Dátum:1993
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Animal
Biophysics
Cell Membrane
chemistry
Energy Transfer
Fluorescence
Fluorescence Polarization
Hungary
Mathematics
Membrane Proteins
metabolism
Models,Theoretical
Proteins
Spectrometry,Fluorescence
Support,Non-U.S.Gov't
egyetemen (Magyarországon) készült közlemény
Megjelenés:Journal of Photochemistry and Photobiology B: Biology 19 : 1 (1993), p. 69-73. -
További szerzők:Jenei Attila (1966-) (biofizikus) Mátyus László (1956-) (biofizikus) Ameloot, Marcel Damjanovich Sándor (1936-2017) (biofizikus)
Internet cím:elektronikus változat
DOI
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Borító:

8.

001-es BibID:BIBFORM058445
Első szerző:Mátyus László (biofizikus)
Cím:Dynamic behaviour of cell surface receptors as revealed by laser excited fluorescence spectroscopy / László Mátyus, László Takács, László Pohubi, Margit Balázs, János Szöllősi, János Matkó, Lajos Trón, Sándor Damjanovich
Dátum:1991
Tárgyszavak:Orvostudományok Elméleti orvostudományok könyvfejezet
cell surface
Receptors
Laser
Fluorescence
Spectroscopy
Megjelenés:Light in Biology and Medicine : Fluorescence site selection spectroscopy on heme proteins / eds. Fidy Judit, Douglas R. H., Moan J., Rontó György. - p. 383-391.
További szerzők:Takács László Pohubi László (1959-) (fizikus) Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Szöllősi János (1953-) (biofizikus) Matkó János (1952-) (biológus) Trón Lajos (1941-) (biofizikus) Damjanovich Sándor (1936-2017) (biofizikus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
Borító:

9.

001-es BibID:BIBFORM004687
Első szerző:Nagy Péter (biofizikus)
Cím:Cell fusion experiments reveal distinctly different association characteristics of cell-surface receptors / Péter Nagy, László Mátyus, Attila Jenei, György Panyi, Sándor Varga, János Matkó, János Szöllősi, Rezső Gáspár, Thomas M. Jovin, Sándor Damjanovich
Dátum:2001
Megjegyzések:The existence of small- and large-scale membrane protein clusters, containing dimers, oligomers and hundreds of proteins, respectively, has become widely accepted. However, it is largely unknown whether the internal structure of these formations is dynamic or static. Cell fusion was used to perturb the distribution of existing membrane protein clusters, and to investigate their mobility and associations. Scanning near-field optical microscopy, confocal and electron microscopy were applied to detect the exchange of proteins between large-scale protein clusters, whereas photobleaching fluorescence energy transfer was used to image the redistribution of existing small-scale membrane protein clusters. Large-scale clusters of major histocompatibility complex (MHC)-I exchanged proteins with each other and with MHC-II clusters. Similarly to MHC-I, large-scale MHC-II clusters were also dynamic. Exchange of components between small-scale protein clusters was not universal: intermixing did not take place in the case of MHC-II homoclusters; however, it was observed for homoclusters of MHC-I and for heteroclusters of MHC-I and MHC-II. These processes required a fluid state of the plasma membrane, and did not depend on endocytosis-mediated recycling of proteins. The redistribution of large-scale MHC-I clusters precedes the intermixing of small-scale clusters of MHC-I indicating a hierarchy in protein association. Investigation of a set of other proteins (alpha subunit of the interleukin 2 receptor, CD48 and transferrin receptor) suggested that a large-scale protein cluster usually exchanges components with the same type of clusters. These results offer new insight into processes requiring time-dependent changes in membrane protein interactions.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Biophysics
Cell Fusion
Cell Line
Cell Membrane
chemistry
Dyes
Energy Transfer
Fluorescence
Fluorescent Dyes
Gold Colloid
Histocompatibility Antigens
Histocompatibility Antigens Class I
Histocompatibility Antigens Class II
Human
Hungary
Interleukin-2
Major Histocompatibility Complex
Membrane Microdomains
metabolism
methods
Microscopy
Microscopy,Fluorescence
physiology
Proteins
Receptor Aggregation
Receptors,Cell Surface
Receptors,Interleukin-2
Support,Non-U.S.Gov't
Megjelenés:Journal of Cell Science 114 : Pt 22 (2001), p. 4063-4071. -
További szerzők:Mátyus László (1956-) (biofizikus) Jenei Attila (1966-) (biofizikus) Panyi György (1966-) (biofizikus) Varga Sándor (1943-) (biofizikus) Matkó János (1952-) (biológus) Szöllősi János (1953-) (biofizikus) Gáspár Rezső (1944-) (biofizikus) Jovin, Thomas M. Damjanovich Sándor (1936-2017) (biofizikus)
Internet cím:elektronikus változat
Szerző által megadott URL
Borító:

10.

001-es BibID:BIBFORM004886
Első szerző:Szentesi Gergely (kémia-fizika tanár)
Cím:Computer program for analyzing donor photobleaching FRET image series / Szentesi, G., Vereb, G., Horvath, G., Bodnar, A., Fabian, A., Matko, J., Gaspar, R., Damjanovich, S., Matyus, L., Jenei, A.
Dátum:2005
ISSN:1552-4922
Megjegyzések:The photobleaching fluorescence resonance energy transfer (pbFRET) technique is a spectroscopic method to measure proximity relations between fluorescently labeled macromolecules using digital imaging microscopy. To calculate the energy transfer values one has to determine the bleaching time constants in pixel-by-pixel fashion from the image series recorded on the donor-only and donor and acceptor double-labeled samples. Because of the large number of pixels and the time-consuming calculations, this procedure should be assisted by powerful image data processing software. There is no commercially available software that is able to fulfill these requirements. METHODS: New evaluation software was developed to analyze pbFRET data for Windows platform in National Instrument LabVIEW 6.1. This development environment contains a mathematical virtual instrument package, in which the Levenberg-Marquardt routine is also included. As a reference experiment, FRET efficiency between the two chains (beta2-microglobulin and heavy chain) of major histocompatibility complex (MHC) class I glycoproteins and FRET between MHC I and MHC II molecules were determined in the plasma membrane of JY, human B lymphoma cells. RESULTS: The bleaching time constants calculated on pixel-by-pixel basis can be displayed as a color-coded map or as a histogram from raw image format. CONCLUSION: In this report we introduce a new version of pbFRET analysis and data processing software that is able to generate a full analysis pattern of donor photobleaching image series under various conditions.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Algorithms
analysis
beta 2-Microglobulin
Biophysics
Cell Line,Tumor
Cells
Energy Transfer
Fluorescence
Fluorescence Resonance Energy Transfer
Glycoproteins
Histocompatibility Antigens
Human
Humans
Hungary
Lymphoma
Major Histocompatibility Complex
metabolism
methods
Microscopy
Photobleaching
Research
Software
Support
egyetemen (Magyarországon) készült közlemény
Megjelenés:Cytometry. Part A. - 67 : 2 (2005), p. 119-128. -
További szerzők:Vereb György (1965-) (biofizikus, orvos) Horváth Gábor (1974-) (biofizikus) Dóczy-Bodnár Andrea (1970-) (biofizikus) Fábián Ákos István (1982-) (aneszteziológus) Matkó János (1952-) (biológus) Gáspár Rezső (1944-) (biofizikus) Damjanovich Sándor (1936-2017) (biofizikus) Mátyus László (1956-) (biofizikus) Jenei Attila (1966-) (biofizikus)
Internet cím:elektronikus változat
DOI
Borító:

11.

001-es BibID:BIBFORM058441
Első szerző:Takács Tibor
Cím:A kansperma spektrofluorimetriás vizsgálata / Takács Tibor, Matkó János, Mátyus László, Nagy Péter, Resli István, Damjanovich Sándor
Dátum:1988
ISSN:0025-004X
Tárgyszavak:Orvostudományok Elméleti orvostudományok magyar nyelvű folyóiratközlemény hazai lapban
Megjelenés:Magyar Állatorvosok Lapja 43 : 10 (1988), p. 587-591. -
További szerzők:Matkó János (1952-) (biológus) Mátyus László (1956-) (biofizikus) Nagy Péter Resli István Damjanovich Sándor (1936-2017) (biofizikus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
Borító:

12.

001-es BibID:BIBFORM033278
035-os BibID:PMID:8588941 WOS:A1995TF18900001
Első szerző:Vereb György (biofizikus, orvos)
Cím:Plasma-membrane-bound macromolecules are dynamically aggregated to form non-random codistribution patterns of selected functional elements. Do pattern recognition processes govern antigen presentation and intercellular interactions? / György Vereb, László Matyus, László Bene, György Panyi, Zsolt Bacsó, Margit Balázs, János Matkó, János Szöllősi, Rezső Gáspár, Sándor Damjanovich, Robert E. Dale, Carlo Pieri, Marcel Ameloot
Dátum:1995
Megjegyzések:Molecular recognition processes between cell surface elements are discussed with special reference to cell surface pattern formation of membrane-bound integral proteins. The existence, as detected by flow cytometric resonance energy transfer (Appendix), and significance of cell surface patterns involving the interleukin-2 receptor, the T-cell receptor-CD3 system, the intercellular adhesion molecule ICAM-1, and the major histocompatibility complex class I and class II molecules in the plasma membrane of lymphocytes are described. The modulation of antigen presentation by transmembrane potential changes is discussed, and a general role of transmembrane potential changes, and therefore of ion channel activities, adduced as one of the major regulatory mechanisms of cell-cell communication. A general role in the mediation and regulation of intercellular interactions is suggested for cell-surface macromolecular patterns. The dynamic pattern of protein and lipid molecules in the plasma membrane is generated by the genetic code, but has a remarkable flexibility and may be one of the major instruments of accommodation and recognition processes at the cellular level.
Tárgyszavak:Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban
cell surface
molecular pattern
energy transfer
fluorescence
flow cytometry
transmembrane potential
MHC
antigen presentation
intercellular communication
egyetemen (Magyarországon) készült közlemény
Megjelenés:Journal of Molecular Recognition. - 8 : 4 (1995), p. 237-246. -
További szerzők:Mátyus László (1956-) (biofizikus) Bene László (1963-) (biofizikus) Panyi György (1966-) (biofizikus) Bacsó Zsolt (1963-) (biofizikus) Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Matkó János (1952-) (biológus) Szöllősi János (1953-) (biofizikus) Gáspár Rezső (1944-) (biofizikus) Damjanovich Sándor (1936-2017) (biofizikus) Dale, Robert E. Pieri, Carlo Ameloot, Marcel
Internet cím:DOI
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