ironjustice
2009-07-06 03:33:19 UTC
Neuropharmacology and Analgesia
CJ-13610, an orally active inhibitor of 5-lipoxygenase is
efficacious in preclinical models of pain
Luz A. Cortes-Burgos, a, , Ben S. Zweifela,
Steven L. Settlea, Robert A. Pufahla,
Gary D. Andersona, Medora M. Hardya,
Dana E. Weira, George Hua, Fernando A. Happaa,
Zachary Stewarta, Shanmugam Muthiana,
Matthew J. Granetoa and Jaime L. Masferrera
aPfizer Global Research & Development,
St. Louis Laboratories, Pfizer Inc, St. Louis, MO 63017
Received 27 April 2009; revised 18 June 2009;
accepted 22 June 2009. Available online 4 July 2009.
Abstract
Zileuton, a redox and iron chelator 5-lipoxygenase (5-LOX) inhibitor
and, leukotriene receptor antagonists are presently used clinically
in the long term treatment of asthma.
Recent data implicate 5-LOX pathway in pain signaling.
We report 5-LOX expression in the central nervous system (CNS)
and analyze the pain efficacy of a new class of non redox, non
iron chelating 5-LOX inhibitor.
CJ-13610, 4-(3-(4-(2-methyl-1H-imidazol-1-yl) phenylthio)
phenyl)-tetrahydro-2H-pyran-4-carboxamide, demonstrated
antihyperalgesic activity in inflammatory pain models including the
acute carrageenan model and the chronic inflammatory model using
complete Freund's adjuvant.
Following complete Freund's adjuvant stimulus leukotrieneB4
concentration in the brain was elevated (9 ± 1 ng/g, Mean ± S.E.M.)
by about 3 times that of the control group (3 ± 0.11, Mean ± S.E.M.).
Hyperalgesia and leukotrieneB4 concentration were both reversed
following CJ-13610 treatment.
Furthermore, we demonstrate CJ-13610 efficacy against osteoarthritis
like pain using the rat medial meniscal transection model.
CJ-13610 at oral doses of 0.6, 2 and 6 mg/kg/day reversed two
modalities of pain in this model; tactile allodynia and weight
bearing
differential.
Taken together, these data suggest that 5-LOX pathway and the
leukotriene products are important mediators of pain.
Inflammation; Analgesia; Behavioral pharmacology
Corresponding author. 700 Chesterfield Parkway West,
BB-591C, Saint Louis, MO 63017. Tel.: +1 636 247
PMID: 18923838
doi:10.1016/j.ejphar.2009.06.058
Copyright © 2009 Published by Elsevier B.V.
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CJ-13610, an orally active inhibitor of 5-lipoxygenase is
efficacious in preclinical models of pain
Luz A. Cortes-Burgos, a, , Ben S. Zweifela,
Steven L. Settlea, Robert A. Pufahla,
Gary D. Andersona, Medora M. Hardya,
Dana E. Weira, George Hua, Fernando A. Happaa,
Zachary Stewarta, Shanmugam Muthiana,
Matthew J. Granetoa and Jaime L. Masferrera
aPfizer Global Research & Development,
St. Louis Laboratories, Pfizer Inc, St. Louis, MO 63017
Received 27 April 2009; revised 18 June 2009;
accepted 22 June 2009. Available online 4 July 2009.
Abstract
Zileuton, a redox and iron chelator 5-lipoxygenase (5-LOX) inhibitor
and, leukotriene receptor antagonists are presently used clinically
in the long term treatment of asthma.
Recent data implicate 5-LOX pathway in pain signaling.
We report 5-LOX expression in the central nervous system (CNS)
and analyze the pain efficacy of a new class of non redox, non
iron chelating 5-LOX inhibitor.
CJ-13610, 4-(3-(4-(2-methyl-1H-imidazol-1-yl) phenylthio)
phenyl)-tetrahydro-2H-pyran-4-carboxamide, demonstrated
antihyperalgesic activity in inflammatory pain models including the
acute carrageenan model and the chronic inflammatory model using
complete Freund's adjuvant.
Following complete Freund's adjuvant stimulus leukotrieneB4
concentration in the brain was elevated (9 ± 1 ng/g, Mean ± S.E.M.)
by about 3 times that of the control group (3 ± 0.11, Mean ± S.E.M.).
Hyperalgesia and leukotrieneB4 concentration were both reversed
following CJ-13610 treatment.
Furthermore, we demonstrate CJ-13610 efficacy against osteoarthritis
like pain using the rat medial meniscal transection model.
CJ-13610 at oral doses of 0.6, 2 and 6 mg/kg/day reversed two
modalities of pain in this model; tactile allodynia and weight
bearing
differential.
Taken together, these data suggest that 5-LOX pathway and the
leukotriene products are important mediators of pain.
Inflammation; Analgesia; Behavioral pharmacology
Corresponding author. 700 Chesterfield Parkway West,
BB-591C, Saint Louis, MO 63017. Tel.: +1 636 247
PMID: 18923838
doi:10.1016/j.ejphar.2009.06.058
Copyright © 2009 Published by Elsevier B.V.
Who loves ya.
Tom
Jesus Was A Vegetarian!
http://tinyurl.com/634q5a
Man Is A Herbivore!
http://tinyurl.com/4rq595
DEAD PEOPLE WALKING
http://tinyurl.com/zk9fk