Immunohistochemical localization of cellCAM 105 in rat tissues: appearance in epithelia, platelets, and granulocytesP Odin, M Asplund, C Busch and B Obrink Department of Medical and Physiological Chemistry, University of Uppsala, Sweden. CellCAM 105 is an integral membrane glycoprotein, with apparent Mr 105,000, which has been purified from rat liver plasma membranes. It consists of two structurally similar, highly glycosylated polypeptide chains and is involved in cell-cell adhesion of adult rat hepatocytes in vitro. In this communication we report on the distribution and cell surface location of cellCAM 105 in rat tissues, obtained by using highly sensitive immunodetection systems based on complex formation between biotinylated antibodies, biotinylated peroxidase and avidin, or on antibodies coupled to alkaline phosphatase. CellCAM was found in many organs and organ systems, including liver, kidney, blood, blood vessels, glands, respiratory system, and gastrointestinal tract. It was mainly localized to epithelial structures but showed a varying cell surface distribution. In some cell types it was predominantly localized to cell-cell contact areas. In other cell types the highest concentrations were seen in brush-border areas containing densely packed microvilli. In addition to epithelial structures, cellCAM 105 was found in rat platelets, where it became strongly expressed on the cell surfaces after activation with ADP or collagen, suggesting that it might be involved in platelet adhesion and/or aggregation mechanisms. Granulocytes also contained cellCAM 105. By SDS-PAGE/immunoblotting, significant differences were found in the apparent Mr values of cellCAM 105 in different tissues. The collected data suggest that cellCAM 105 participates in several different cell surface membrane interactions, of which the common denominator might be membrane-membrane binding.
Volume 36,
Issue 7,
pp. 729-739,
07/01/1988
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J. E. Bookwalter, J. A. Jurcisek, S. D. Gray-Owen, S. Fernandez, G. McGillivary, and L. O. Bakaletz A Carcinoembryonic Antigen-Related Cell Adhesion Molecule 1 Homologue Plays a Pivotal Role in Nontypeable Haemophilus influenzae Colonization of the Chinchilla Nasopharynx via the Outer Membrane Protein P5-Homologous Adhesin Infect. Immun., January 1, 2008; 76(1): 48 - 55. [Abstract] [Full Text] [PDF] |
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M. M. Muller, B. B. Singer, E. Klaile, B. Obrink, and L. Lucka Transmembrane CEACAM1 affects integrin-dependent signaling and regulates extracellular matrix protein-specific morphology and migration of endothelial cells Blood, May 15, 2005; 105(10): 3925 - 3934. [Abstract] [Full Text] [PDF] |
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D.D. Bosshardt and N.P. Lang The Junctional Epithelium: from Health to Disease J. Dent. Res., January 1, 2005; 84(1): 9 - 20. [Abstract] [Full Text] [PDF] |
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U. Sundberg, N. Beauchemin, and B. Obrink The cytoplasmic domain of CEACAM1-L controls its lateral localization and the organization of desmosomes in polarized epithelial cells J. Cell Sci., March 1, 2004; 117(7): 1091 - 1104. [Abstract] [Full Text] [PDF] |
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U. Sundberg and B. Obrink CEACAM1 isoforms with different cytoplasmic domains show different localization, organization and adhesive properties in polarized epithelial cells J. Cell Sci., March 15, 2002; 115(6): 1273 - 1284. [Abstract] [Full Text] [PDF] |
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R. Kammerer, D. Stober, B. B. Singer, B. Obrink, and J. Reimann Carcinoembryonic Antigen-Related Cell Adhesion Molecule 1 on Murine Dendritic Cells Is a Potent Regulator of T Cell Stimulation J. Immunol., June 1, 2001; 166(11): 6537 - 6544. [Abstract] [Full Text] [PDF] |
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B. B. Singer, I. Scheffrahn, and B. Öbrink The Tumor Growth-inhibiting Cell Adhesion Molecule CEACAM1 (C-CAM) Is Differently Expressed in Proliferating and Quiescent Epithelial Cells and Regulates Cell Proliferation Cancer Res., March 1, 2000; 60(5): 1236 - 1244. [Abstract] [Full Text] |
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S. Sadekova, N. Lamarche-Vane, X. Li, and N. Beauchemin The CEACAM1-L Glycoprotein Associates with the Actin Cytoskeleton and Localizes to Cell-Cell Contact through Activation of Rho-like GTPases Mol. Biol. Cell, January 1, 2000; 11(1): 65 - 77. [Abstract] [Full Text] |
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J Huang, J. Hardy, Y Sun, and J. Shively Essential role of biliary glycoprotein (CD66a) in morphogenesis of the human mammary epithelial cell line MCF10F J. Cell Sci., January 12, 1999; 112(23): 4193 - 4205. [Abstract] [PDF] |
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L. Riethdorf, B. W. Lisboa, U. Henkel, M. Naumann, C. Wagener, and T. Loning Differential Expression of CD66a (BGP), a Cell Adhesion Molecule of the Carcinoembryonic Antigen Family, in Benign, Premalignant, and Malignant Lesions of the Human Mammary Gland J. Histochem. Cytochem., July 1, 1997; 45(7): 957 - 964. [Abstract] [Full Text] |
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H. Sawa, H. Ukita, M. Fukuda, H. Kamada, I. Saito, and B. Obrink Spatiotemporal Expression of C-CAM in the Rat Placenta J. Histochem. Cytochem., July 1, 1997; 45(7): 1021 - 1034. [Abstract] [Full Text] [PDF] |
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M. Edlund, I. Blikstad, and B.ör. Obrink Calmodulin Binds to Specific Sequences in the Cytoplasmic Domain of C-CAM and Down-regulates C-CAM Self-association J. Biol. Chem., January 19, 1996; 271(3): 1393 - 1399. [Abstract] [Full Text] [PDF] |
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I Hunter, M Lindh, and B Obrink Differential regulation of C-CAM isoforms in epithelial cells J. Cell Sci., January 5, 1994; 107(5): 1205 - 1216. [Abstract] [PDF] |
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