Suppressive effects of nonsteroidal anti-inflammatory drugs diclofenac sodium, salicylate and indomethacin on delayed rectifier K+-channel currents in murine thymocytes. 2012

Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
Department of Physiology I, Tohoku University Graduate School of Medicine, Seiryo-cho, Aoba-ku, Sendai, Miyagi, Japan. kazaitsu@med.tohoku.ac.jp

Lymphocytes predominantly express delayed rectifier K(+)-channels (Kv1.3) in their plasma membranes, and the channels play crucial roles in the lymphocyte activation and proliferation. Since nonsteroidal anti-inflammatory drugs (NSAIDs), the most commonly used analgesic and antipyretic drugs, exert immunomodulatory effects, they would affect the channel currents in lymphocytes. In the present study, employing the standard patch-clamp whole-cell recording technique, we examined the effects of diclofenac sodium, salicylate and indomethacin on the channel currents in murine thymocytes and the membrane capacitance. Diclofenac sodium and salicylate significantly suppressed the pulse-end currents of the channel. However, indomethacin suppressed both the peak and the pulse-end currents with a significant increase in the membrane capacitance. This study demonstrated for the first time that NSAIDs, such as diclofenac sodium, salicylate and indomethacin, exert inhibitory effects on thymocyte Kv1.3-channel currents. The slow inactivation pattern induced by indomethacin was thought to be associated with microscopic changes in the plasma membrane surface detected by the increase in the membrane capacitance.

UI MeSH Term Description Entries
D007213 Indomethacin A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES. Amuno,Indocid,Indocin,Indomet 140,Indometacin,Indomethacin Hydrochloride,Metindol,Osmosin
D008297 Male Males
D008564 Membrane Potentials The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization). Resting Potentials,Transmembrane Potentials,Delta Psi,Resting Membrane Potential,Transmembrane Electrical Potential Difference,Transmembrane Potential Difference,Difference, Transmembrane Potential,Differences, Transmembrane Potential,Membrane Potential,Membrane Potential, Resting,Membrane Potentials, Resting,Potential Difference, Transmembrane,Potential Differences, Transmembrane,Potential, Membrane,Potential, Resting,Potential, Transmembrane,Potentials, Membrane,Potentials, Resting,Potentials, Transmembrane,Resting Membrane Potentials,Resting Potential,Transmembrane Potential,Transmembrane Potential Differences
D004008 Diclofenac A non-steroidal anti-inflammatory agent (NSAID) with antipyretic and analgesic actions. It is primarily available as the sodium salt. Diclophenac,Dichlofenal,Diclofenac Potassium,Diclofenac Sodium,Diclonate P,Dicrofenac,Feloran,GP-45,840,Novapirina,Orthofen,Orthophen,Ortofen,SR-38,Sodium Diclofenac,Voltaren,Voltarol,Diclofenac, Sodium,GP 45,840,GP45,840,SR 38,SR38
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
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
D012980 Sodium Salicylate A non-steroidal anti-inflammatory agent that is less effective than equal doses of ASPIRIN in relieving pain and reducing fever. However, individuals who are hypersensitive to ASPIRIN may tolerate sodium salicylate. In general, this salicylate produces the same adverse reactions as ASPIRIN, but there is less occult gastrointestinal bleeding. (From AMA Drug Evaluations Annual, 1992, p120) Salicylate, Sodium
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D051664 Kv1.3 Potassium Channel A delayed rectifier subtype of shaker potassium channels that is the predominant VOLTAGE-GATED POTASSIUM CHANNEL of T-LYMPHOCYTES. KCNA3 Potassium Channel,Potassium Channel, KCNA3,Potassium Channel, Kv1.3
D060168 Thymocytes HEMATOPOIETIC PROGENITOR CELLS that have migrated to the THYMUS where they differentiate into T-LYMPHOCYTES. Thymocytes are classified into maturational stages based on the expression of CELL SURFACE ANTIGENS. Thymocyte

Related Publications

Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
January 2019, BioMed research international,
Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
January 2024, BioMed research international,
Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
October 2005, American journal of physiology. Heart and circulatory physiology,
Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
July 2013, Journal of ginseng research,
Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
May 1993, Proceedings of the National Academy of Sciences of the United States of America,
Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
September 2014, Experimental and therapeutic medicine,
Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
April 1986, The American journal of medicine,
Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
November 1980, Clinical pharmacology and therapeutics,
Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
May 2000, British journal of pharmacology,
Itsuro Kazama, and Yoshio Maruyama, and Yoshimichi Murata
December 2019, The Journal of membrane biology,
Copied contents to your clipboard!