Synthesis and surface expression of ICAM-1 in polymorphonuclear neutrophilic leukocytes in normal subjects and during inflammatory disease. 1995

J Elsner, and M Sach, and H P Knopf, and J Norgauer, and A Kapp, and P Schollmeyer, and G J Dobos
Department of Dermatology, Hannover Medical School, Germany.

During bacterial peritonitis of patients on continuous ambulatory peritoneal dialysis (CAPD) leukocytes, particularly polymorphonuclear neutrophilic granulocytes (PMNs), migrate into the peritoneal cavity. However, at the site of inflammation PMNs are not sufficiently able to protect the host against micro-organisms. Adhesion molecules, such as ICAM-1 (CD54), are involved in the interaction between endothelial cells and PMNs leading to the accumulation of PMNs at the site of inflammation. As PMNs are the predominant cell type in the peritoneal cavity in peritonitis, the aim of this study was to find out whether PMNs from CAPD peritonitis patients were able to express ICAM-1. Flow cytometric analyses with the anti-CD54 monoclonal antibody demonstrated that normal PMNs constitutively express slight amounts of ICAM-1. In contrast to normal PMNs, peritoneal PMNs from patients with CAPD peritonitis expressed high amounts of ICAM-1 (p = 0.003). Furthermore, ICAM-1 expression on peripheral blood PMNs of these patients significantly differed from PMNs from healthy donor (p = 0.01). Furthermore, Northern blot analysis revealed a weak signal of ICAM-1 mRNA in normal PMNs. However, peritoneal PMNs from CAPD peritonitis patients expressed a strong signal for ICAM-1 mRNA, suggesting that ICAM-1 is newly synthesized when PMNs invade the peritoneal cavity. In summary, this study clearly demonstrates that peritoneal PMNs of CAPD peritonitis express high amounts of ICAM-1 receptor on the level of mRNA and on the surface. Therefore, it is tempting to speculate that peritoneal PMNs interact amongst each other between ICAM-1 and its counter receptors CD11a,b/CD18 receptor.(ABSTRACT TRUNCATED AT 250 WORDS)

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009504 Neutrophils Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes. LE Cells,Leukocytes, Polymorphonuclear,Polymorphonuclear Leukocytes,Polymorphonuclear Neutrophils,Neutrophil Band Cells,Band Cell, Neutrophil,Cell, LE,LE Cell,Leukocyte, Polymorphonuclear,Neutrophil,Neutrophil Band Cell,Neutrophil, Polymorphonuclear,Polymorphonuclear Leukocyte,Polymorphonuclear Neutrophil
D010531 Peritoneal Dialysis, Continuous Ambulatory Portable peritoneal dialysis using the continuous (24 hours a day, 7 days a week) presence of peritoneal dialysis solution in the peritoneal cavity except for periods of drainage and instillation of fresh solution. CAPD,Continuous Ambulatory Peritoneal Dialysis
D010538 Peritonitis INFLAMMATION of the PERITONEUM lining the ABDOMINAL CAVITY as the result of infectious, autoimmune, or chemical processes. Primary peritonitis is due to infection of the PERITONEAL CAVITY via hematogenous or lymphatic spread and without intra-abdominal source. Secondary peritonitis arises from the ABDOMINAL CAVITY itself through RUPTURE or ABSCESS of intra-abdominal organs. Primary Peritonitis,Secondary Peritonitis,Peritonitis, Primary,Peritonitis, Secondary
D011971 Receptors, Immunologic Cell surface molecules on cells of the immune system that specifically bind surface molecules or messenger molecules and trigger changes in the behavior of cells. Although these receptors were first identified in the immune system, many have important functions elsewhere. Immunologic Receptors,Immunologic Receptor,Immunological Receptors,Receptor, Immunologic,Receptors, Immunological
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated
D015815 Cell Adhesion Molecules Surface ligands, usually glycoproteins, that mediate cell-to-cell adhesion. Their functions include the assembly and interconnection of various vertebrate systems, as well as maintenance of tissue integration, wound healing, morphogenic movements, cellular migrations, and metastasis. Cell Adhesion Molecule,Intercellular Adhesion Molecule,Intercellular Adhesion Molecules,Leukocyte Adhesion Molecule,Leukocyte Adhesion Molecules,Saccharide-Mediated Cell Adhesion Molecules,Saccharide Mediated Cell Adhesion Molecules,Adhesion Molecule, Cell,Adhesion Molecule, Intercellular,Adhesion Molecule, Leukocyte,Adhesion Molecules, Cell,Adhesion Molecules, Intercellular,Adhesion Molecules, Leukocyte,Molecule, Cell Adhesion,Molecule, Intercellular Adhesion,Molecule, Leukocyte Adhesion,Molecules, Cell Adhesion,Molecules, Intercellular Adhesion,Molecules, Leukocyte Adhesion
D018799 Intercellular Adhesion Molecule-1 A cell-surface ligand involved in leukocyte adhesion and inflammation. Its production is induced by gamma-interferon and it is required for neutrophil migration into inflamed tissue. Antigens, CD54,CD54 Antigens,ICAM-1,CD54 Antigen,Antigen, CD54,Intercellular Adhesion Molecule 1
D018821 CD18 Antigens Cell-surface glycoprotein beta-chains that are non-covalently linked to specific alpha-chains of the CD11 family of leukocyte-adhesion molecules (RECEPTORS, LEUKOCYTE-ADHESION). A defect in the gene encoding CD18 causes LEUKOCYTE-ADHESION DEFICIENCY SYNDROME. Antigens, CD18,Integrin beta2,CD18 Antigen,beta2 Integrin,p150,95 beta-Subunit,Integrin, beta2,beta-Subunit, p150,95,beta2, Integrin,p150,95 beta Subunit

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