An immunological study on chromogranin A and B in human endocrine and nervous tissues. 1989

K W Schmid, and R Weiler, and R W Xu, and R Hogue-Angeletti, and R Fischer-Colbrie, and H Winkler
Department of Pathology, University of Innsbruck, Austria.

Antisera were raised against synthetic peptides derived from the primary amino acid sequence of human chromogranin B. These antisera recognized in one- and two-dimensional immunoblotting a component previously designated as chromogranin B. In human chromaffin granules, the major endogenous processing product of chromogranin B is formed by proteolytic cleavage of the protein near the C-terminus. Immunohistochemical localizations were obtained with antisera against human chromogranins A and B and against a synthetic peptide corresponding to the B sequence. In human tissues, chromogranin B is co-stored with chromogranin A in the adrenal medulla, the anterior pituitary, parafollicular cells of the thyroid, in some cells of the endocrine pancreas and in some enterochromaffin cells, whereas only chromogranin A is found in the parathyroid gland and enterochromaffin cells of the gastric corpus mucosa. In the nervous system, no immunostaining was observed for chromogranin A and only a weak one for chromogranin B in some cells of the spinal cord. However, the Purkinje cells of the cerebellum were strongly positive for chromogranin B.

UI MeSH Term Description Entries
D007106 Immune Sera Serum that contains antibodies. It is obtained from an animal that has been immunized either by ANTIGEN injection or infection with microorganisms containing the antigen. Antisera,Immune Serums,Sera, Immune,Serums, Immune
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D009417 Nerve Tissue Differentiated tissue of the central nervous system composed of NERVE CELLS, fibers, DENDRITES, and specialized supporting cells. Nervous Tissue,Nerve Tissues,Nervous Tissues,Tissue, Nerve,Tissue, Nervous,Tissues, Nerve,Tissues, Nervous
D009419 Nerve Tissue Proteins Proteins, Nerve Tissue,Tissue Proteins, Nerve
D002864 Chromogranins A group of acidic proteins that are major components of SECRETORY GRANULES in the endocrine and neuroendocrine cells. They play important roles in the aggregation, packaging, sorting, and processing of secretory protein prior to secretion. They are cleaved to release biologically active peptides. There are various types of granins, usually classified by their sources. Chromogranin,Granin,Secretogranin,Secretogranins,Granins
D004702 Endocrine Glands Ductless glands that secrete HORMONES directly into the BLOOD CIRCULATION. These hormones influence the METABOLISM and other functions of cells in the body. Endocrine Gland,Gland, Endocrine
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015151 Immunoblotting Immunologic method used for detecting or quantifying immunoreactive substances. The substance is identified by first immobilizing it by blotting onto a membrane and then tagging it with labeled antibodies. Dot Immunoblotting,Electroimmunoblotting,Immunoelectroblotting,Reverse Immunoblotting,Immunoblotting, Dot,Immunoblotting, Reverse,Dot Immunoblottings,Electroimmunoblottings,Immunoblottings,Immunoblottings, Dot,Immunoblottings, Reverse,Immunoelectroblottings,Reverse Immunoblottings
D053379 Chromogranin A A type of chromogranin which was first isolated from CHROMAFFIN CELLS of the ADRENAL MEDULLA but is also found in other tissues and in many species including human, bovine, rat, mouse, and others. It is an acidic protein with 431 to 445 amino acid residues. It contains fragments that inhibit vasoconstriction or release of hormones and neurotransmitter, while other fragments exert antimicrobial actions. CHGA Protein,Parathyroid Secretory Protein,Secretory Protein I, Parathyroid Gland,Secretory Protein, Parathyroid

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