Biomaterial Database

The inhibitory effect of tenidap on leukocyte-endothelial cell adhesion. 1993

U Kyan-Aung, and T H Lee, and D O Haskard

Rheumatology Unit, United Medical School (UMDS), Guy's Hospital, London, United Kingdom.

OBJECTIVE Adhesion of neutrophils to vascular endothelial cells (EC) and neutrophil chemotaxis are essential processes which enable neutrophils to infiltrate the tissues. They represent potentially important targets for therapeutic intervention in inflammatory diseases. This study was conducted to test the effect of tenidap sodium on neutrophil adhesion and chemotaxis. METHODS Adhesion of 51Cr sodium chromate labelled neutrophils to umbilical vein EC monolayers was assayed in 96-well microtiter plates. Neutrophil chemotaxis was measured in Boyden microchemotaxis chambers. RESULTS Tenidap sodium caused a dose related inhibition of neutrophil adhesion to EC, with 50 microM tenidap resulting in 51.8 +/- 4.0% (mean +/- SEM) inhibition of unstimulated adhesion and 46.1 +/- 2.6% inhibition of formyl-methionyl-leucyl-phenylalanine (FMLP) stimulated adhesion. A marked reduction in neutrophil chemotaxis in response to FMLP was also observed, with 50 microM and 100 microM tenidap leading to 83.4 +/- 8.5% and 92.1 +/- 8.5% (mean +/- SEM) inhibition respectively. The effect of tenidap on neutrophil adhesion to EC was not seen when neutrophils were preincubated with tenidap and then washed before adding to EC monolayers, suggesting an action upon surface molecules or in the cell membrane. Aspirin, indomethacin and phenylbutazone did not inhibit leukocyte adhesion, indicating that this action of tenidap may not be a consequence of inhibition of cyclooxygenase. The potency of tenidap was reduced by inclusion of serum or plasma in the culture medium, presumably due to protein binding. CONCLUSIONS It is possible that inhibition of leukocyte-EC adhesion by tenidap sodium may contribute to the antiinflammatory effects of the drug.

UI	MeSH Term	Description	Entries
D007211	Indoles	Benzopyrroles with the nitrogen at the number one carbon adjacent to the benzyl portion, in contrast to ISOINDOLES which have the nitrogen away from the six-membered ring.
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
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
D002448	Cell Adhesion	Adherence of cells to surfaces or to other cells.	Adhesion, Cell,Adhesions, Cell,Cell Adhesions
D002634	Chemotaxis, Leukocyte	The movement of leukocytes in response to a chemical concentration gradient or to products formed in an immunologic reaction.	Leukotaxis,Leukocyte Chemotaxis
D004730	Endothelium, Vascular	Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.	Capillary Endothelium,Vascular Endothelium,Capillary Endotheliums,Endothelium, Capillary,Endotheliums, Capillary,Endotheliums, Vascular,Vascular Endotheliums
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000078183	Oxindoles	Benzopyrroles with the nitrogen at the number one carbon adjacent to the benzyl and a carbonyl at the pyrrole ring typically at the 2-position.	Ajmalicine Oxindole,Ajmalicine Oxindoles,Ajmalicine-Type Oxindole,Ajmalicine-Type Oxindoles,Indolinone,Indolinone Derivative,Macroline Oxindole,Macroline Oxindoles,Macroline-Type Oxindole,Macroline-Type Oxindoles,Oxazolidinone Derivative,Oxindole Alkaloid,Oxindole Alkaloid Derivative,Oxindole Derivative,Indolinone Derivatives,Indolinones,Oxazolidinone Derivatives,Oxindole Alkaloid Derivatives,Oxindole Alkaloids,Oxindole Derivatives,Ajmalicine Type Oxindole,Ajmalicine Type Oxindoles,Alkaloid Derivative, Oxindole,Alkaloid, Oxindole,Derivative, Indolinone,Derivative, Oxazolidinone,Derivative, Oxindole,Derivative, Oxindole Alkaloid,Macroline Type Oxindole,Macroline Type Oxindoles,Oxindole, Ajmalicine,Oxindole, Ajmalicine-Type,Oxindole, Macroline,Oxindole, Macroline-Type,Oxindoles, Ajmalicine,Oxindoles, Ajmalicine-Type,Oxindoles, Macroline,Oxindoles, Macroline-Type
D000894	Anti-Inflammatory Agents, Non-Steroidal	Anti-inflammatory agents that are non-steroidal in nature. In addition to anti-inflammatory actions, they have analgesic, antipyretic, and platelet-inhibitory actions. They act by blocking the synthesis of prostaglandins by inhibiting cyclooxygenase, which converts arachidonic acid to cyclic endoperoxides, precursors of prostaglandins. Inhibition of prostaglandin synthesis accounts for their analgesic, antipyretic, and platelet-inhibitory actions; other mechanisms may contribute to their anti-inflammatory effects.	Analgesics, Anti-Inflammatory,Aspirin-Like Agent,Aspirin-Like Agents,NSAID,Non-Steroidal Anti-Inflammatory Agent,Non-Steroidal Anti-Inflammatory Agents,Nonsteroidal Anti-Inflammatory Agent,Anti Inflammatory Agents, Nonsteroidal,Antiinflammatory Agents, Non Steroidal,Antiinflammatory Agents, Nonsteroidal,NSAIDs,Nonsteroidal Anti-Inflammatory Agents,Agent, Aspirin-Like,Agent, Non-Steroidal Anti-Inflammatory,Agent, Nonsteroidal Anti-Inflammatory,Anti-Inflammatory Agent, Non-Steroidal,Anti-Inflammatory Agent, Nonsteroidal,Anti-Inflammatory Analgesics,Aspirin Like Agent,Aspirin Like Agents,Non Steroidal Anti Inflammatory Agent,Non Steroidal Anti Inflammatory Agents,Nonsteroidal Anti Inflammatory Agent,Nonsteroidal Anti Inflammatory Agents,Nonsteroidal Antiinflammatory Agents
D066298	In Vitro Techniques	Methods to study reactions or processes taking place in an artificial environment outside the living organism.	In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In