Major histocompatibility complex modulation of β-adrenoceptor function
Reciprocal interaction between β-adrenoceptor specific ligand occupancy and alloantibody binding to specific antigens of cardiac and smooth muscle tissues was observed. Interference of alloimmune antibody fixation to both cardiac and oviductal tract preparations by β1 or β2 selective blockers, respe...
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1990
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00062952_v39_n12_p1861_Cremaschi http://hdl.handle.net/20.500.12110/paper_00062952_v39_n12_p1861_Cremaschi |
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paper:paper_00062952_v39_n12_p1861_Cremaschi2023-06-08T14:30:32Z Major histocompatibility complex modulation of β-adrenoceptor function 4 hydroxyoxprenolol beta adrenergic receptor butoxamine cyclic amp dihydroalprenolol immunoglobulin g monoclonal antibody practolol propranolol unclassified drug alloimmunization animal cell animal experiment article heart muscle immunofluorescence ligand binding major histocompatibility complex nonhuman priority journal smooth muscle uterine tube Animal Antibodies, Monoclonal Butoxamine Cyclic AMP Female Heart Immunoglobulin Allotypes Immunoglobulin G Ligands Major Histocompatibility Complex Mice Mice, Inbred BALB C Mice, Inbred C3H Muscle, Smooth Myocardium Practolol Propranolol Receptors, Adrenergic, beta Tritium Reciprocal interaction between β-adrenoceptor specific ligand occupancy and alloantibody binding to specific antigens of cardiac and smooth muscle tissues was observed. Interference of alloimmune antibody fixation to both cardiac and oviductal tract preparations by β1 or β2 selective blockers, respectively, was obtained by means of indirect immunofluorescence assays. Reciprocally, alloimmune IgG and monoclonal antibodies directed to class I H-2 antigens, behaving as β-adrenoceptor agonists, modified the contractility of both tissues, increasing intracellular levels of cyclic AMP (cAMP). Additionally, alloantibodies were also capable of inhibiting specific β-adrenoceptor radioligand binding to purified cardiac and smooth muscle membranes. These data suggested a modulation of β-adrenoceptor function by antibodies directed against H-2 class I histocompatibility molecules, probably through molecular interactions between both structures. © 1990. 1990 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00062952_v39_n12_p1861_Cremaschi http://hdl.handle.net/20.500.12110/paper_00062952_v39_n12_p1861_Cremaschi |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
4 hydroxyoxprenolol beta adrenergic receptor butoxamine cyclic amp dihydroalprenolol immunoglobulin g monoclonal antibody practolol propranolol unclassified drug alloimmunization animal cell animal experiment article heart muscle immunofluorescence ligand binding major histocompatibility complex nonhuman priority journal smooth muscle uterine tube Animal Antibodies, Monoclonal Butoxamine Cyclic AMP Female Heart Immunoglobulin Allotypes Immunoglobulin G Ligands Major Histocompatibility Complex Mice Mice, Inbred BALB C Mice, Inbred C3H Muscle, Smooth Myocardium Practolol Propranolol Receptors, Adrenergic, beta Tritium |
spellingShingle |
4 hydroxyoxprenolol beta adrenergic receptor butoxamine cyclic amp dihydroalprenolol immunoglobulin g monoclonal antibody practolol propranolol unclassified drug alloimmunization animal cell animal experiment article heart muscle immunofluorescence ligand binding major histocompatibility complex nonhuman priority journal smooth muscle uterine tube Animal Antibodies, Monoclonal Butoxamine Cyclic AMP Female Heart Immunoglobulin Allotypes Immunoglobulin G Ligands Major Histocompatibility Complex Mice Mice, Inbred BALB C Mice, Inbred C3H Muscle, Smooth Myocardium Practolol Propranolol Receptors, Adrenergic, beta Tritium Major histocompatibility complex modulation of β-adrenoceptor function |
topic_facet |
4 hydroxyoxprenolol beta adrenergic receptor butoxamine cyclic amp dihydroalprenolol immunoglobulin g monoclonal antibody practolol propranolol unclassified drug alloimmunization animal cell animal experiment article heart muscle immunofluorescence ligand binding major histocompatibility complex nonhuman priority journal smooth muscle uterine tube Animal Antibodies, Monoclonal Butoxamine Cyclic AMP Female Heart Immunoglobulin Allotypes Immunoglobulin G Ligands Major Histocompatibility Complex Mice Mice, Inbred BALB C Mice, Inbred C3H Muscle, Smooth Myocardium Practolol Propranolol Receptors, Adrenergic, beta Tritium |
description |
Reciprocal interaction between β-adrenoceptor specific ligand occupancy and alloantibody binding to specific antigens of cardiac and smooth muscle tissues was observed. Interference of alloimmune antibody fixation to both cardiac and oviductal tract preparations by β1 or β2 selective blockers, respectively, was obtained by means of indirect immunofluorescence assays. Reciprocally, alloimmune IgG and monoclonal antibodies directed to class I H-2 antigens, behaving as β-adrenoceptor agonists, modified the contractility of both tissues, increasing intracellular levels of cyclic AMP (cAMP). Additionally, alloantibodies were also capable of inhibiting specific β-adrenoceptor radioligand binding to purified cardiac and smooth muscle membranes. These data suggested a modulation of β-adrenoceptor function by antibodies directed against H-2 class I histocompatibility molecules, probably through molecular interactions between both structures. © 1990. |
title |
Major histocompatibility complex modulation of β-adrenoceptor function |
title_short |
Major histocompatibility complex modulation of β-adrenoceptor function |
title_full |
Major histocompatibility complex modulation of β-adrenoceptor function |
title_fullStr |
Major histocompatibility complex modulation of β-adrenoceptor function |
title_full_unstemmed |
Major histocompatibility complex modulation of β-adrenoceptor function |
title_sort |
major histocompatibility complex modulation of β-adrenoceptor function |
publishDate |
1990 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00062952_v39_n12_p1861_Cremaschi http://hdl.handle.net/20.500.12110/paper_00062952_v39_n12_p1861_Cremaschi |
_version_ |
1768542966044950528 |