Diethylcarbamazine dependent, complement mediated, adherence and cytotoxicity of cells on microfilariae of Litomosoides carinii. 1983

H Zahner

Diethylcarbamazine (DEC) induced dose dependent adherence of normal spleen cells from Mastomys natalensis to microfilariae of L. carinii in the presence of serum from Mastomys infected with L. carinii or normal serum. The effect could be also induced, using fresh, normal human serum and human blood leucocytes. The responsible serum factor was heat labile (56 degrees C, 30 min) and was eliminated from the sera by pretreatment with Inulin. The activity could be reconstituted by normal serum. Cell adhesion was inhibited by 0.004 MEDTA while 0.004 M EGTA had only a weak inhibitory effect. The addition of Mg++ led to high adherence rates in the presence of EGTA. The data indicate that DEC activates complement on the surface of the larval sheath by the alternate pathway. Adherent Mastomys cells or human cells had a cytotoxic effect on the larvae. The death of the microfilariae did not depend on the loss of the larval sheath.

UI MeSH Term Description Entries
D007104 Immune Adherence Reaction A method for the detection of very small quantities of antibody in which the antigen-antibody-complement complex adheres to indicator cells, usually primate erythrocytes or nonprimate blood platelets. The reaction is dependent on the number of bound C3 molecules on the C3b receptor sites of the indicator cell. Adherence Reaction, Immune,Adherence Reactions, Immune,Immune Adherence Reactions,Reaction, Immune Adherence,Reactions, Immune Adherence
D007962 Leukocytes White blood cells. These include granular leukocytes (BASOPHILS; EOSINOPHILS; and NEUTROPHILS) as well as non-granular leukocytes (LYMPHOCYTES and MONOCYTES). Blood Cells, White,Blood Corpuscles, White,White Blood Cells,White Blood Corpuscles,Blood Cell, White,Blood Corpuscle, White,Corpuscle, White Blood,Corpuscles, White Blood,Leukocyte,White Blood Cell,White Blood Corpuscle
D008842 Microfilariae The prelarval stage of Filarioidea found in the blood and tissues of mammals, birds and intermediate hosts (vector). Microfilaria
D009115 Muridae A family of the order Rodentia containing 250 genera including the two genera Mus (MICE) and Rattus (RATS), from which the laboratory inbred strains are developed. The fifteen subfamilies are SIGMODONTINAE (New World mice and rats), CRICETINAE, Spalacinae, Myospalacinae, Lophiomyinae, ARVICOLINAE, Platacanthomyinae, Nesomyinae, Otomyinae, Rhizomyinae, GERBILLINAE, Dendromurinae, Cricetomyinae, MURINAE (Old World mice and rats), and Hydromyinae. Murids,Murid
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D003165 Complement System Proteins Serum glycoproteins participating in the host defense mechanism of COMPLEMENT ACTIVATION that creates the COMPLEMENT MEMBRANE ATTACK COMPLEX. Included are glycoproteins in the various pathways of complement activation (CLASSICAL COMPLEMENT PATHWAY; ALTERNATIVE COMPLEMENT PATHWAY; and LECTIN COMPLEMENT PATHWAY). Complement Proteins,Complement,Complement Protein,Hemolytic Complement,Complement, Hemolytic,Protein, Complement,Proteins, Complement,Proteins, Complement System
D003170 Complement Pathway, Alternative Complement activation initiated by the interaction of microbial ANTIGENS with COMPLEMENT C3B. When COMPLEMENT FACTOR B binds to the membrane-bound C3b, COMPLEMENT FACTOR D cleaves it to form alternative C3 CONVERTASE (C3BBB) which, stabilized by COMPLEMENT FACTOR P, is able to cleave multiple COMPLEMENT C3 to form alternative C5 CONVERTASE (C3BBB3B) leading to cleavage of COMPLEMENT C5 and the assembly of COMPLEMENT MEMBRANE ATTACK COMPLEX. Alternative Complement Pathway,Properdin Pathway,Alternative Complement Activation Pathway,Complement Activation Pathway, Alternative
D003602 Cytotoxicity, Immunologic The phenomenon of target cell destruction by immunologically active effector cells. It may be brought about directly by sensitized T-lymphocytes or by lymphoid or myeloid "killer" cells, or it may be mediated by cytotoxic antibody, cytotoxic factor released by lymphoid cells, or complement. Tumoricidal Activity, Immunologic,Immunologic Cytotoxicity,Immunologic Tumoricidal Activities,Immunologic Tumoricidal Activity,Tumoricidal Activities, Immunologic
D004049 Diethylcarbamazine An anthelmintic used primarily as the citrate in the treatment of filariasis, particularly infestations with Wucheria bancrofti or Loa loa. Carbamazine,Diethylcarbamazine Citrate,Diethylcarbamazine Citrate (1:1),Diethylcarbamazine Citrate (1:2),Diethylcarbamazine L-Tartrate (1:1),Diethylcarbamazine Maleate,Diethylcarbamazine Monohydrochloride,Diethylcarbamazine Phosphate (1:1),Hetrazan,Loxuran,Notezine,Citrate, Diethylcarbamazine,Maleate, Diethylcarbamazine,Monohydrochloride, Diethylcarbamazine
D005368 Filariasis Infections with nematodes of the superfamily FILARIOIDEA. The presence of living worms in the body is mainly asymptomatic but the death of adult worms leads to granulomatous inflammation and permanent fibrosis. Organisms of the genus Elaeophora infect wild elk and domestic sheep causing ischemic necrosis of the brain, blindness, and dermatosis of the face. Elaeophoriasis,Filarioidea Infections,Infections, Filarioidea,Elaeophoriases,Filariases,Filarioidea Infection,Infection, Filarioidea

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