Biomaterial Database

Localization and identification of an Entamoeba histolytica adhesin. 1987

R Arroyo, and E Orozco

The adherence of Entamoeba histolytica trophozoites to target cells was studied by using monoclonal antibodies (MAbs) and adhesion-deficient mutants of the parasite. MAbs Adh-1 and Adh-2 reacted with a surface protein of approximately 112 kDa of the total proteins of trophozoites from the wild type strain, clone A, strain HM1:IMSS. Both MAbs reacted weakly with the adhesion-deficient mutant clones, C-98, C-919 and C-923, all derived from HM1:IMSS. MAbs Adh-1 and Adh-2 incubated with trophozoites from clone A inhibited adherence to red blood cells, erythrophagocytosis and cytopathic effect on cell culture monolayers. Antibodies against a approximately 112 kDa polypeptide were found in the sera from patients with hepatic abscess. These results demonstrate that the adherence of trophozoites to target cells is a necessary event in order for cytopathogenicity to occur.

UI	MeSH Term	Description	Entries
D008101	Liver Abscess, Amebic	Single or multiple areas of PUS due to infection by any ameboid protozoa (AMEBIASIS). A common form is caused by the ingestion of ENTAMOEBA HISTOLYTICA.	Abscess, Amebic, Hepatic,Abscess, Hepatic, Amebic,Abscess, Liver, Amebic,Amebiasis, Hepatic,Entamoebiasis, Hepatic,Hepatic Amebiasis,Hepatic Entamoebiasis,Amoebiasis, Hepatic,Hepatic Abscess, Amoebic,Hepatic Amoebiasis,Liver Abscess, Amoebic,Abscess, Amebic Liver,Abscess, Amoebic Hepatic,Abscess, Amoebic Liver,Abscesses, Amebic Liver,Abscesses, Amoebic Hepatic,Abscesses, Amoebic Liver,Amebic Liver Abscess,Amebic Liver Abscesses,Amoebic Hepatic Abscess,Amoebic Hepatic Abscesses,Amoebic Liver Abscess,Amoebic Liver Abscesses,Entamoebiases, Hepatic,Hepatic Abscesses, Amoebic,Hepatic Entamoebiases,Liver Abscesses, Amebic,Liver Abscesses, Amoebic
D008562	Membrane Glycoproteins	Glycoproteins found on the membrane or surface of cells.	Cell Surface Glycoproteins,Surface Glycoproteins,Cell Surface Glycoprotein,Membrane Glycoprotein,Surface Glycoprotein,Glycoprotein, Cell Surface,Glycoprotein, Membrane,Glycoprotein, Surface,Glycoproteins, Cell Surface,Glycoproteins, Membrane,Glycoproteins, Surface,Surface Glycoprotein, Cell,Surface Glycoproteins, Cell
D008565	Membrane Proteins	Proteins which are found in membranes including cellular and intracellular membranes. They consist of two types, peripheral and integral proteins. They include most membrane-associated enzymes, antigenic proteins, transport proteins, and drug, hormone, and lectin receptors.	Cell Membrane Protein,Cell Membrane Proteins,Cell Surface Protein,Cell Surface Proteins,Integral Membrane Proteins,Membrane-Associated Protein,Surface Protein,Surface Proteins,Integral Membrane Protein,Membrane Protein,Membrane-Associated Proteins,Membrane Associated Protein,Membrane Associated Proteins,Membrane Protein, Cell,Membrane Protein, Integral,Membrane Proteins, Integral,Protein, Cell Membrane,Protein, Cell Surface,Protein, Integral Membrane,Protein, Membrane,Protein, Membrane-Associated,Protein, Surface,Proteins, Cell Membrane,Proteins, Cell Surface,Proteins, Integral Membrane,Proteins, Membrane,Proteins, Membrane-Associated,Proteins, Surface,Surface Protein, Cell
D009154	Mutation	Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.	Mutations
D010587	Phagocytosis	The engulfing and degradation of microorganisms; other cells that are dead, dying, or pathogenic; and foreign particles by phagocytic cells (PHAGOCYTES).	Phagocytoses
D002448	Cell Adhesion	Adherence of cells to surfaces or to other cells.	Adhesion, Cell,Adhesions, Cell,Cell Adhesions
D004748	Entamoeba histolytica	A species of parasitic protozoa causing ENTAMOEBIASIS and amebic dysentery (DYSENTERY, AMEBIC). Characteristics include a single nucleus containing a small central karyosome and peripheral chromatin that is finely and regularly beaded.	Endamoeba histolytica,histolytica, Endamoeba
D004912	Erythrocytes	Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN.	Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000268	Adhesiveness	A property of the surface of an object that makes it stick to another surface.	Adhesivenesses