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Vol. 284, Issue 3, 966-973, March 1998

Cytochrome P450-Derived Arachidonic Acid Metabolism in the Rat Kidney: Characterization of Selective Inhibitors1

Mong-Heng Wang2 , Elimor Brand-Schieber2 , Barbara A. Zand, Xuandai Nguyen, John R. Falck, Narayanan Balu and Michal Laniado Schwartzman

Department of Pharmacology (M-H.W., E.B-S., B.A.Z., X.N., M.L.S.), New York Medical College, Valhalla, New York, and Departments of Biochemistry and Pharmacology (J.R.F., N.B.), University of Texas Southwestern Medical Center, Dallas, Texas

We characterized the inhibitory activity of several acetylenic and olefinic compounds on cytochrome P450 (CYP)-derived arachidonic acid omega -hydroxylation and epoxidation using rat renal cortical microsomes and recombinant CYP proteins. Among the acetylenic compounds, 6-(2-propargyloxyphenyl)hexanoic acid (PPOH) and N-methylsulfonyl-6-(2-propargyloxyphenyl)hexanamide were found to be potent and selective inhibitors of microsomal epoxidation with IC50 values of 9 and 13 µM, respectively. On the other hand, 17-octadecynoic acid inhibited both omega -hydroxylation and epoxidation of arachidonic acid with IC50 values of 7 and 5 µM, respectively. The olefinic compounds N-methylsulfonyl-12,12-dibromododec-11-enamide (DDMS) and 12,12-dibromododec-11-enoic acid (DBDD) exhibited a high degree of selectivity inhibiting microsomal omega -hydroxylation with an IC50 value of 2 µM, whereas the IC50 values for epoxidation were 60 and 51 µM for DDMS and DBDD, respectively. Studies using recombinant rat CYP4A isoforms showed that PPOH caused a concentration-dependent inhibition of omega -hydroxylation and 11,12-epoxidation by CYP4A3 or CYP4A2 but had no effect on CYP4A1-catalyzed omega -hydroxylase activity. On the other hand, DDMS inhibited both CYP4A1- and CYP4A3- or CYP4A2-catalyzed arachidonic acid oxidations. Inhibition of microsomal activity by PPOH, but not DDMS, was time- and NADPH-dependent, a result characteristic of a mechanism-based irreversible inhibitor. These studies provide information useful for evaluating the role of the CYP-derived arachidonic acid metabolites in the regulation of renal function and blood pressure.


0022-3565/98/2843-0966$03.00/0
THE JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS
Copyright © 1998 by The American Society for Pharmacology and Experimental Therapeutics



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Am. J. Physiol. Heart Circ. Physiol.Home page
X. Peng, J. R. Carhuapoma, A. Bhardwaj, N. J. Alkayed, J. R. Falck, D. R. Harder, R. J. Traystman, and R. C. Koehler
Suppression of cortical functional hyperemia to vibrissal stimulation in the rat by epoxygenase inhibitors
Am J Physiol Heart Circ Physiol, November 1, 2002; 283(5): H2029 - H2037.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
F. Xu, W. O. Straub, W. Pak, P. Su, K. G. Maier, M. Yu, R. J. Roman, P. R. Ortiz De Montellano, and D. L. Kroetz
Antihypertensive effect of mechanism-based inhibition of renal arachidonic acid omega -hydroxylase activity
Am J Physiol Regulatory Integrative Comp Physiol, September 1, 2002; 283(3): R710 - R720.
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Am. J. Physiol. Renal Physiol.Home page
R.-M. Gu and W.-H. Wang
Arachidonic acid inhibits K channels in basolateral membrane of the thick ascending limb
Am J Physiol Renal Physiol, September 1, 2002; 283(3): F407 - F414.
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J. Am. Soc. Nephrol.Home page
C. Sauvant, H. Holzinger, and M. Gekle
Short-Term Regulation of Basolateral Organic Anion Uptake in Proximal Tubular OK cells: EGF Acts via MAPK, PLA2, and COX1
J. Am. Soc. Nephrol., August 1, 2002; 13(8): 1981 - 1991.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
J. C. Frisbee, K. G. Maier, J. R. Falck, R. J. Roman, and J. H. Lombard
Integration of hypoxic dilation signaling pathways for skeletal muscle resistance arteries
Am J Physiol Regulatory Integrative Comp Physiol, August 1, 2002; 283(2): R309 - R319.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
M. Alonso-Galicia, K. G. Maier, A. S. Greene, A. W. Cowley Jr., and R. J. Roman
Role of 20-hydroxyeicosatetraenoic acid in the renal and vasoconstrictor actions of angiotensin II
Am J Physiol Regulatory Integrative Comp Physiol, July 1, 2002; 283(1): R60 - R68.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
F. A. Sylvester, D. W. Stepp, J. C. Frisbee, and J. H. Lombard
High-salt diet depresses acetylcholine reactivity proximal to NOS activation in cerebral arteries
Am J Physiol Heart Circ Physiol, July 1, 2002; 283(1): H353 - H363.
[Abstract] [Full Text] [PDF]


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StrokeHome page
T. Horiuchi, H. H. Dietrich, K. Hongo, T. Goto, and R. G. Dacey Jr
Role of Endothelial Nitric Oxide and Smooth Muscle Potassium Channels in Cerebral Arteriolar Dilation in Response to Acidosis
Stroke, March 1, 2002; 33(3): 844 - 849.
[Abstract] [Full Text] [PDF]


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Physiol. Rev.Home page
R. J. Roman
P-450 Metabolites of Arachidonic Acid in the Control of Cardiovascular Function
Physiol Rev, January 1, 2002; 82(1): 131 - 185.
[Abstract] [Full Text] [PDF]


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HypertensionHome page
F. Zhang, M.-H. Wang, U.M. Krishna, J. R. Falck, M. Laniado-Schwartzman, and A. Nasjletti
Modulation by 20-HETE of Phenylephrine-Induced Mesenteric Artery Contraction in Spontaneously Hypertensive and Wistar-Kyoto Rats
Hypertension, December 1, 2001; 38(6): 1311 - 1315.
[Abstract] [Full Text] [PDF]


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Drug Metab. Dispos.Home page
E. T. Morgan, V. Ullrich, A. Daiber, P. Schmidt, N. Takaya, H. Shoun, J. C. McGiff, A. Oyekan, C. J. Hanke, W. B. Campbell, et al.
Cytochromes P450 and Flavin Monooxygenases---Targets and Sources of Nitric Oxide
Drug Metab. Dispos., November 1, 2001; 29(11): 1366 - 1376.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
X. Zhao, E. W. Inscho, M. Bondlela, J. R. Falck, and J. D. Imig
The CYP450 hydroxylase pathway contributes to P2X receptor-mediated afferent arteriolar vasoconstriction
Am J Physiol Heart Circ Physiol, November 1, 2001; 281(5): H2089 - H2096.
[Abstract] [Full Text] [PDF]


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Circ. Res.Home page
I. Fleming
Cytochrome P450 and Vascular Homeostasis
Circ. Res., October 26, 2001; 89(9): 753 - 762.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Cell Physiol.Home page
R.-M. Gu, Y. Wei, J. R. Falck, U. M. Krishna, and W.-H. Wang
Effects of protein tyrosine kinase and protein tyrosine phosphatase on apical K+ channels in the TAL
Am J Physiol Cell Physiol, October 1, 2001; 281(4): C1188 - C1195.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
Y. Wu, A. Huang, D. Sun, J. R. Falck, A. Koller, and G. Kaley
Gender-specific compensation for the lack of NO in the mediation of flow-induced arteriolar dilation
Am J Physiol Heart Circ Physiol, June 1, 2001; 280(6): H2456 - H2461.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
A. Huang, D. Sun, M. A. Carroll, H. Jiang, C. J. Smith, J. A. Connetta, J. R. Falck, E. G. Shesely, A. Koller, and G. Kaley
EDHF mediates flow-induced dilation in skeletal muscle arterioles of female eNOS-KO mice
Am J Physiol Heart Circ Physiol, June 1, 2001; 280(6): H2462 - H2469.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
M. P. Kunert, R. J. Roman, M. Alonso-Galicia, J. R. Falck, and J. H. Lombard
Cytochrome P-450 {omega}-hydroxylase: a potential O2 sensor in rat arterioles and skeletal muscle cells
Am J Physiol Heart Circ Physiol, April 1, 2001; 280(4): H1840 - H1845.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
J. C. Frisbee, R. J. Roman, U. M. Krishna, J. R. Falck, and J. H. Lombard
20-HETE modulates myogenic response of skeletal muscle resistance arteries from hypertensive Dahl-SS rats
Am J Physiol Heart Circ Physiol, March 1, 2001; 280(3): H1066 - H1074.
[Abstract] [Full Text] [PDF]


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HypertensionHome page
S. I. Pomposiello, M. A. Carroll, J. R. Falck, and J. C. McGiff
Epoxyeicosatrienoic Acid-Mediated Renal Vasodilation to Arachidonic Acid Is Enhanced in SHR
Hypertension, March 1, 2001; 37(3): 887 - 893.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Renal Physiol.Home page
R. Gu, Y. Wei, H. Jiang, M. Balazy, and W. Wang
Role of 20-HETE in mediating the effect of dietary K intake on the apical K channels in the mTAL
Am J Physiol Renal Physiol, February 1, 2001; 280(2): F223 - F230.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
H. C. Hercule and A. O. Oyekan
Role of NO and cytochrome P-450-derived eicosanoids in ET-1-induced changes in intrarenal hemodynamics in rats
Am J Physiol Regulatory Integrative Comp Physiol, December 1, 2000; 279(6): R2132 - R2141.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Renal Physiol.Home page
J. D. Imig
Eicosanoid regulation of the renal vasculature
Am J Physiol Renal Physiol, December 1, 2000; 279(6): F965 - F981.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
D. Zhu, E. K. Birks, C. A. Dawson, M. Patel, J. R. Falck, K. Presberg, R. J. Roman, and E. R. Jacobs
Hypoxic pulmonary vasoconstriction is modified by P-450 metabolites
Am J Physiol Heart Circ Physiol, October 1, 2000; 279(4): H1526 - H1533.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
A. Bhardwaj, F. J. Northington, J. R. Carhuapoma, J. R. Falck, D. R. Harder, R. J. Traystman, and R. C. Koehler
P-450 epoxygenase and NO synthase inhibitors reduce cerebral blood flow response to N-methyl-D-aspartate
Am J Physiol Heart Circ Physiol, October 1, 2000; 279(4): H1616 - H1624.
[Abstract] [Full Text] [PDF]


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ThoraxHome page
M. A Carroll and J. C McGiff
A new class of lipid mediators: cytochrome P450 arachidonate metabolites
Thorax, October 1, 2000; 55(90002): 13S - 16.
[Full Text]


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Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
W. Kozak, M. J. Kluger, A. Kozak, M. Wachulec, and K. Dokladny
Role of cytochrome P-450 in endogenous antipyresis
Am J Physiol Regulatory Integrative Comp Physiol, August 1, 2000; 279(2): R455 - R460.
[Abstract] [Full Text] [PDF]


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Circ. Res.Home page
D. Gebremedhin, A. R. Lange, T. F. Lowry, M. R. Taheri, E. K. Birks, A. G. Hudetz, J. Narayanan, J. R. Falck, H. Okamoto, R. J. Roman, et al.
Production of 20-HETE and Its Role in Autoregulation of Cerebral Blood Flow
Circ. Res., July 7, 2000; 87(1): 60 - 65.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
J. C. Frisbee, J. R. Falck, and J. H. Lombard
Contribution of cytochrome P-450 omega -hydroxylase to altered arteriolar reactivity with high-salt diet and hypertension
Am J Physiol Heart Circ Physiol, May 1, 2000; 278(5): H1517 - H1526.
[Abstract] [Full Text] [PDF]


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J. Biol. Chem.Home page
J. M. Lasker, W. B. Chen, I. Wolf, B. P. Bloswick, P. D. Wilson, and P. K. Powell
Formation of 20-Hydroxyeicosatetraenoic Acid, a Vasoactive and Natriuretic Eicosanoid, in Human Kidney. ROLE OF CYP4F2 AND CYP4A11
J. Biol. Chem., February 11, 2000; 275(6): 4118 - 4126.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Lung Cell. Mol. Physiol.Home page
D. Zhu, M. Bousamra II, D. C. Zeldin, J. R. Falck, M. Townsley, D. R. Harder, R. J. Roman, and E. R. Jacobs
Epoxyeicosatrienoic acids constrict isolated pressurized rabbit pulmonary arteries
Am J Physiol Lung Cell Mol Physiol, February 1, 2000; 278(2): L335 - L343.
[Abstract] [Full Text] [PDF]


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HypertensionHome page
J. D. Imig, B. T. Pham, E. A. LeBlanc, K. M. Reddy, J. R. Falck, and E. W. Inscho
Cytochrome P450 and Cyclooxygenase Metabolites Contribute to the Endothelin-1 Afferent Arteriolar Vasoconstrictor and Calcium Responses
Hypertension, January 1, 2000; 35(1): 307 - 312.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
J. C. McGiff and J. Quilley
20-HETE and the kidney: resolution of old problems and new beginnings
Am J Physiol Regulatory Integrative Comp Physiol, September 1, 1999; 277(3): R607 - R623.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
X. Nguyen, M.-H. Wang, K. M. Reddy, J. R. Falck, and M. L. Schwartzman
Kinetic profile of the rat CYP4A isoforms: arachidonic acid metabolism and isoform-specific inhibitors
Am J Physiol Regulatory Integrative Comp Physiol, June 1, 1999; 276(6): R1691 - R1700.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
A. O. Oyekan, K. McAward, J. Conetta, L. Rosenfeld, and J. C. McGiff
Endothelin-1 and CYP450 arachidonate metabolites interact to promote tissue injury in DOCA-salt hypertension
Am J Physiol Regulatory Integrative Comp Physiol, March 1, 1999; 276(3): R766 - R775.
[Abstract] [Full Text] [PDF]


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J. Biol. Chem.Home page
B. A. Rzigalinski, K. A. Willoughby, S. W. Hoffman, J. R. Falck, and E. F. Ellis
Calcium Influx Factor, Further Evidence It Is 5,6-Epoxyeicosatrienoic Acid
J. Biol. Chem., January 1, 1999; 274(1): 175 - 182.
[Abstract] [Full Text] [PDF]


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HypertensionHome page
J. D. Imig, E. W. Inscho, P. C. Deichmann, K. M. Reddy, and J. R. Falck
Afferent Arteriolar Vasodilation to the Sulfonimide Analog of 11,12-Epoxyeicosatrienoic Acid Involves Protein Kinase A
Hypertension, January 1, 1999; 33(1): 408 - 413.
[Abstract] [Full Text] [PDF]


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J. Biol. Chem.Home page
J. T. Weber, B. A. Rzigalinski, and E. F. Ellis
Traumatic Injury of Cortical Neurons Causes Changes in Intracellular Calcium Stores and Capacitative Calcium Influx
J. Biol. Chem., January 12, 2001; 276(3): 1800 - 1807.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Renal Physiol.Home page
B. A. Escalante, J. C. McGiff, and A. O. Oyekan
Role of cytochrome P-450 arachidonate metabolites in endothelin signaling in rat proximal tubule
Am J Physiol Renal Physiol, January 1, 2002; 282(1): F144 - F150.
[Abstract] [Full Text] [PDF]




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