Comparative ultrastructural morphology of human basophils stimulated to release histamine by anti-IgE, recombinant IgE-dependent histamine-releasing factor, or monocyte chemotactic protein-1. 1996

A M Dvorak, and J T Schroeder, and D W MacGlashan, and K P Bryan, and E S Morgan, and L M Lichtenstein, and S M MacDonald
Beth Israel Hospital, Department of Pathology, Boston, MA 02215, USA.

An ultrastructural analysis of human basophils stimulated with anti-IgE, recombinant histamine-releasing factor (rHRF), or monocyte chemotactic protein-1 (MCP-1) (compared with unstimulated cells) was performed. Partially purified peripheral blood basophils were prepared for electron microscopy at time points known to precede histamine release and at half-maximum histamine release times for each secretagogue. Activation morphologies associated with stimulation included granule-vesicle attachments, piecemeal degranulation, anaphylactic degranulation, and uropod formation. These features were qualitatively similar in the stimulated samples. Quantitative differences were evident, however, when stimulated samples were compared with controls or at different time points after stimulation with a single agent or when individual secretagogues were compared. All stimulated samples differed quantitatively from the control samples. Rank orders for morphologic activation events revealed that the most effective trigger for anaphylactic degranulation was anti-IgE > MCP-1 > rHRF, whereas the most effective trigger for uropod formation was rHRF > anti-IgE > MCP-1. Rank orders for piecemeal degranulation and granule-vesicle attachments were the same: MCP-1 > anti-IgE > rHRF. Important relationships among these anatomic events reveal that the development of motile configurations is not associated with the development of secretion morphologies and that piecemeal degranulation precedes and is inversely related to anaphylactic degranulation in stimulated samples.

UI MeSH Term Description Entries
D007073 Immunoglobulin E An immunoglobulin associated with MAST CELLS. Overexpression has been associated with allergic hypersensitivity (HYPERSENSITIVITY, IMMEDIATE). IgE
D008222 Lymphokines Soluble protein factors generated by activated lymphocytes that affect other cells, primarily those involved in cellular immunity. Lymphocyte Mediators,Mediators, Lymphocyte
D011994 Recombinant Proteins Proteins prepared by recombinant DNA technology. Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
D006636 Histamine Release The secretion of histamine from mast cell and basophil granules by exocytosis. This can be initiated by a number of factors, all of which involve binding of IgE, cross-linked by antigen, to the mast cell or basophil's Fc receptors. Once released, histamine binds to a number of different target cell receptors and exerts a wide variety of effects. Histamine Liberation,Histamine Liberations,Histamine Releases
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000090324 Tumor Protein, Translationally-Controlled 1 A highly expressed protein in tumor cells, encoded by Tpt1 gene. It's involved in various cellular activities including protein synthesis, calcium-binding, MICROTUBULE stabilization, growth, and cell survival. Also, Tpt1 identified as a direct target gene of P53 tumor suppression. Histamine Releasing Factor,Histamine Releasing Factor, Lymphocyte-Dependent,Histamine-Releasing Factor (IgE-Dependent),Protein P23, Ehrlich Ascites Tumor,TPT1 Protein,Translationally-Controlled Tumor Protein,Factor, Histamine Releasing,Histamine Releasing Factor, Lymphocyte Dependent,Protein, TPT1,Protein, Translationally-Controlled Tumor,Translationally Controlled Tumor Protein,Tumor Protein, Translationally Controlled 1,Tumor Protein, Translationally-Controlled
D000888 Antibodies, Anti-Idiotypic Antibodies which react with the individual structural determinants (idiotopes) on the variable region of other antibodies. Anti-Antibodies,Anti-Idiotype Antibodies,Antibodies, Internal Image,Antigamma Globulin Antibodies,Antiglobulins,Anti Antibodies,Anti-gamma Globulin Antibodies,Anti Idiotype Antibodies,Anti gamma Globulin Antibodies,Anti-Idiotypic Antibodies,Antibodies, Anti,Antibodies, Anti Idiotypic,Antibodies, Anti-Idiotype,Antibodies, Anti-gamma Globulin,Antibodies, Antigamma Globulin,Globulin Antibodies, Anti-gamma,Globulin Antibodies, Antigamma,Image Antibodies, Internal,Internal Image Antibodies
D001491 Basophils Granular leukocytes characterized by a relatively pale-staining, lobate nucleus and cytoplasm containing coarse dark-staining granules of variable size and stainable by basic dyes. Basophil
D014408 Biomarkers, Tumor Molecular products metabolized and secreted by neoplastic tissue and characterized biochemically in cells or BODY FLUIDS. They are indicators of tumor stage and grade as well as useful for monitoring responses to treatment and predicting recurrence. Many chemical groups are represented including HORMONES; ANTIGENS; amino and NUCLEIC ACIDS; ENZYMES; POLYAMINES; and specific CELL MEMBRANE PROTEINS and LIPIDS. Biochemical Tumor Marker,Cancer Biomarker,Carcinogen Markers,Markers, Tumor,Metabolite Markers, Neoplasm,Tumor Biomarker,Tumor Marker,Tumor Markers, Biochemical,Tumor Markers, Biological,Biochemical Tumor Markers,Biological Tumor Marker,Biological Tumor Markers,Biomarkers, Cancer,Marker, Biochemical Tumor,Marker, Biologic Tumor,Marker, Biological Tumor,Marker, Neoplasm Metabolite,Marker, Tumor Metabolite,Markers, Biochemical Tumor,Markers, Biological Tumor,Markers, Neoplasm Metabolite,Markers, Tumor Metabolite,Metabolite Markers, Tumor,Neoplasm Metabolite Markers,Tumor Markers, Biologic,Tumor Metabolite Marker,Biologic Tumor Marker,Biologic Tumor Markers,Biomarker, Cancer,Biomarker, Tumor,Cancer Biomarkers,Marker, Tumor,Markers, Biologic Tumor,Markers, Carcinogen,Metabolite Marker, Neoplasm,Metabolite Marker, Tumor,Neoplasm Metabolite Marker,Tumor Biomarkers,Tumor Marker, Biochemical,Tumor Marker, Biologic,Tumor Marker, Biological,Tumor Markers,Tumor Metabolite Markers
D018932 Chemokine CCL2 A chemokine that is a chemoattractant for MONOCYTES and may also cause cellular activation of specific functions related to host defense. It is produced by LEUKOCYTES of both monocyte and lymphocyte lineage and by FIBROBLASTS during tissue injury. It has specificity for CCR2 RECEPTORS. Monocyte Chemoattractant Protein-1,Monocyte Chemotactic Protein-1,CCL2 Chemokine,Chemokine (C-C Motif) Ligand 2,Chemokines CCL2,Monocyte Chemotactic and Activating Factor,CCL2, Chemokine,CCL2, Chemokines,Chemoattractant Protein-1, Monocyte,Chemokine, CCL2,Chemotactic Protein-1, Monocyte,Monocyte Chemoattractant Protein 1,Monocyte Chemotactic Protein 1

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