Abstract
Cytochrome P450 (P450) enzymes catalyze the blotransformatlon of a broad range of structurally diverse foreign chemicals and endogenous substances. Many P450 enzymes have been isolated and identified in liver and other tlssues, including kidney, lung, intestines, and brain. Although these enzymes have a high degree of similarity in their ammo-acid sequences, many of them are subject to differential regulation and have distinct catalytic functions With the development of P450 form-specific (or P450 subfamlly-specific) inhlbltory antibodies, the discovery of enzyme-selective chemical inhibitors, and the general availability of catalytically active, mdivldual P450 cDNA-expressed proteins, several substrates, including drugs and endogenous substances, have been identified as useful catalytic monitors for specific P450 enzymes or subfamilies (see Table 1). These catalytic monitors can serve as useful expenmental tools in a variety of studies. These include studies designed: 1 To identify individual P45Os that catalyze the actlvatlon or detoxification of a particular compound, 2 To quantify the expression and catalytic activity of an mdlvrdual P450 in tissue samples and In cultured cells, 3. To analyze the enzyme kinetics of a particular P450; and 4 To eluctdate the mechanism of interaction between xenoblotlcs and mdlvldual P450 enzymes
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Carrrere, V., Goasduff, T., Ratanasavanh, D., Morel, F., Gautter, J. C, Guillouzo, A., Beaune, P., and Bet-thou, F. (1993) Both cytochromes P4502El and IA1 are mvolved in the metabolism of chlorzoxazone Chem. Res Toxzcol 6, 852–857.
Yamazaki, H., Guo, Z., and Guengerich, F. P. (1995) Selectivtty of cytochrome P4502E1 in chlorzoxazone 6-hydroxylation. Drug Metab Dispos 23, 438–440.
Chang, T K. H., Yu, L, Goldstein, J. A, and Waxman, D J. (1997) Identification of the polymorphically expressed CYP2C19 and the wild-type CYP2C9-Ile359 allele as low-Km catalysts of cyclophosphamtde and ifosfamide acttvatron. Pharmacogenetzcs 7, 211–221.
Chang, T. K. H., Gonzalez, F. J., and Waxman, D J. (1994) Evaluatron of tnacetyloleandomycm, a-naphthoflavone and diethyldithiocarbamate as selective chemical probes for mhtbitton of human cytochromes P450 Arch Bzochem Bzophys. 311, 437–442
Sesardic, D, Boobis, A. R., Edwards, R. J., and Davies, D S (1988) A form of cytochrome P450 in man, orthologous to form d in the rat, catalyses the Odeethylation of phenacetin and IS inducible by cigarette smoking Br J Clzn Pharmacol 26, 363–372.
Boobis, A. R., Kahn, G. C., Whyte, C., Brodie, M J, and Davies, D. S (1981) Biphastc 0-deethylation of phenacetin and 7-ethoxycoumarin by human and rat liver mtcrosomal fractions. Bzochem. Pharmacol. 30, 2451–2456
Butler, M. A., Iwasaki, M., Guengerich, F. P., and Kadlubar, F. F (1989) Human cytochrome P-450PA (P-450JA2), the phenacetin 0-deethylase, is prtmarily responsible for the hepatic 3-demethylation of caffeine and N-oxidation of carctnogenrc arylamines Proc Nat1 Acad Scz USA 86, 7696–7700
Sesardic, D., Pasanen, M., Pelkonen, 0, and Boobrs, A R. (1990) Differential expression and regulation of members of the cytochrome P450 IA gene subfamily in human tissues Carcznogeneszs 11, 1183–1188.
Waxman, D. J, Lapenson, D P., Aoyama, T, Gelbom, H V., Gonzalez, F. J., and Korzekwa, K. (1991) Steroid hormone hydroxylase specificities of eleven cDNAexpressed human cytochrome P45Os Arch Biochem Bzophys 290, 160–166.
Chang, T. K H., Weber, G. F., Crespi, C L., and Waxman, D. J. (1993) Dtfferenteal activation of cyclophosphamtde and ifosphamide by cytochromes P-4502B and 3A in human liver microsomes. Cancer Res. 53, 5629–5637.
Butler, A. M and Murray, M (1997) Biotransformation of parathion in human liver: participation of CYP3A4 and its inactivation during mtcrosomal parathion oxtdation J Pharmacol Exp Ther. 280, 966–973
Burke, M D, Thompson, S, Weaver, R. J, Wolf, C. R., and Mayer, R T. (1994) Cytochrome P450 spectticities of alkoxyresorufin O-dealkylatron in human and rat liver. Bzochem. Pharmacol 48, 923–936
Distlerath, L. M., Reilly, P. E. B., Martin, M. V., Davis, G. G, Wilkmson, G R., and Guengertch, F P. (1985) Purification and characterizatton of the human ltver cytochrome P-450 involved n-r debrisoquine 4-hydroxylation and phenacetin O-deethylatton, two prototypes for genetic polymorphtsm in oxrdatlve drug metabolism. J Brol. Chem. 260, 9057–9067
Tang, B. K. and Kalow, W. (1996) Assays for CYPlA2 by testmg zn vzvo metabolism of caffeme in humans Methods Enzymol 272, 124–131.
Shimada, T., Grllam, E. M. J., Sutter, T R., Strickland, P T., Guengench, F. P., and Yamazaki, H (1997) Oxidation of xenobiottcs by recombinant human cytochrome P4501B1. DrugMetab Dzspos 29, 617–622.
Spink, D. C., Hayes, C L, Young, N. R., Christou, M., Sutter, T. R, Jefcoate, C. R., and Grerthy, J. F. (1994) The effects of 2,3,7,8-tetrachlorodtbenzo-p-dtoxm on estrogen metabolism in MCF-7 breast cancer cells. evidence for mductton of a novel 17 beta-estradiol4-hydroxylase. J Steroid Blochem Mol. Btol 51, 251–258
Aoyama, T., Korzekwa, K., Nagata, K., Grllette, J, Gelbom, H. V., and Gonzalez, F. J. (1990) Estradtol metabolism by complementary deoxyrtbonuclerc acidexpressing human cytochrome P45Os Endocrznology 126, 3101–3106.
Suchar, L. A., Chang, R L., Rosen, R. T, Lech, J, and Conney, A. H (1995) High-performance hqutd chromatography separation of hydroxylated estradtol metabolites: Formatton of estradtol metabohtes by liver mrcrosomes from male and female rats. J Pharmacol Exp Ther 272, 197–206
Yun, C H, Shtmada, T., and Guengertch, F. P. (1991) Purrficatron and characterization of human liver microsomal cytochrome P-4502A6 Mol. Pharmacol 40, 679–685
Code, E L., Crespt, C L, Penman, B W., Gonzalez, F J., Chang, T K. H, and Waxman, D. J. (1997) Human cytochrome P4502B6: Intermdtvldual hepattc expression, substrate specificity and role in procarcmogen activation Drug Metab Dtspos. 25, 985–993
Rahman, A., Korzekwa, K. R., Grogan, J., Gonzalez, F. J, and Harris, J W. (1994) Selective btotransformatton of taxol to 6cL-hydroxytaxol by human cytochrome P4502C8. Cancer Res. 54, 5543–5546
Leemann, T., Transon, C, and Dayer, P (1992) Cytochrome P450TB (CYP2C) a maJor monooxygenase catalyzing dtclofenac 4’-hydroxylatron in human liver. Life Sct 52, 29–34
Brian, W R., Srivastava, P K, Umbenhauer, D. R, Lloyd, R S., and Guengertch, F P. (1989) Expression of a human liver cytochrome P-450 protein with tolbutamtde hydroxylase activity in Saccaromyces cerevwae. Bzochemlstry 28, 4993–4999.
Doecke, C. J, Veronese, M. E., Pond, S. M, Miners, J O., Btrkett, D J., Sansom, L. N., and McManus, M E. (1991) Relationship between phenytom and tolbutamtde hydroxylattons in human liver mtcrosomes. Br J Clin. Pharmacol. 31, 125–130
Miners, J. O and Bukett, D J. (1996) Use of tolbutamrde as a substrate probe for human hepattc cytochrome P4502C9. Methods Enzymol 272, 139–145
Rettie, A. E., Korzekwa, K R, Kunze, K. L, Lawrence, R F, Eddy, A C, Aoyama, T., Gelboin, H. V., Gonzalez, F. J., and Trager, W. F. (1992) Hydroxylatton of warfarin by human cDNA-expressed cytochrome P-450: a role for P-4502C9 in the etiology of (S)-warfarm drug tnteractlons. Chem. Res. Toxzcol 5, 54–59.
Kaminsky, L S., Fasco, M J, and Guengerich, F P (1981) Productton and apphcatton ofanttbodtes to rat liver cytochrome P-450 Methods Enzymol 74, 262–273
Lang, D and Backer, R. (1995) Highly sensitive and specific high-performance liquid chromatographtc analysts of 7-hydroxywarfarm, a marker for human cytochrome P-4502C9 activity. J. Chromatogr 672, 305–309.
Goldstein, J A., Faletto, M. B., Romkes-Sparks, M., Sullivan, T, Kttareewan, S, Raucy, J. L., Lasker, J M, and Ghanayem, B I(1994) Evidence that CYP2Cl9 is the major (S)-mephenytom 4’-hydroxylase in humans. Bzochemzstry 33, 1743–1752
Gut, J, Catin, T, Dayer, P., Kronbach, T., Zanger, U., and Meyer, U. A (1986) Debrisoqume/sparteme-type polymorphtsm of drug oxldatton purtficatton and characterizatton of two functtonally different human liver cytochrome P-450 isozymes mvolved in impaired hydroxylatton of the prototype substrate bufuralol J Blol Chem 261, 11,734–11,743.
Kronbach, T. (1991) Bufuralol, dextromethorphan and debrisoqume as prototype substrates for human P450IID6. Methods Enzymol 206, 509–517.
Dayer, P, Leemann, T., and Striberni, R. (1989) Dextromethorphan O-demethylatton in liver microsomes as a prototype reaction to monitor cytochrome P-450 db, activity Cin. Pharmacol Ther 45, 34–40.
Rodrtgues, A. D. (1996) Measurement of human liver mtcrosomal cytochrome P4502D6 actrvrty usmg [O-methyl-14C]dextromethorphan as substrate Methods Enzymol 272, 186–195
Tassaneeyakul, W, Veronese, M E., Btrkett, D J., Gonzalez, F. J., and Mmers, J 0 (1993) Validation of 4-mtrophenol as an zn vitro substrate probe for human liver CYP2El using cDNA expresston and microsomal kinetic techniques Bzochem Pharmacol 46, 1975–1981.
Peter, R, Backer, R., Beaune, P. H., Iwasaki, M, Guengertch, F P., and Yang, C S (1990) Hydroxylation of chlorzoxazone as a specific probe for human liver cytochrome P-45011E1 Chem Res Toxicol 3, 566–573
Lucas, D., Menez, J F., and Bet-thou, F. (1996) Chlorzoxazone an zn vitro and zn vlvo substrate probe for liver CYP2E1. Methods Enzymol 272, 115–123
Amet, Y., Berthou, F., Band, S., Dreano, Y., Bad, J P, and Menez, J. F (1995) Validation of the (o-I)-hydroxylation of lauric acid as an zn vitro substrate probe for human liver CYP2El Bzochem. Pharmacol 50, 1775–1782.
Wrtghton, S. A., Thomas, P. E., Molowa, D. T., Hanm, M., Shively, J. E., Mames, S. L., Watkins, P B., Parker, G., Mendezptcon, G., Levm, W., and Guzehan, P. S. (1986) Characterization of ethanol-inducible human liver N-nitrosodtmethylamine demethylase. Bzochemzstry 25, 6731–6735.
Guengerich, F. P, Ktm, D. H., and Iwasakt, M (1991) Role of human cytochrome P-450 IIEl in the oxtdatton of many low molecular weight cancer suspects. Chem Res. Toxicol 4, 168–179
Yoo, J. S. H., Guengertch, F. P., and Yang, C S. (1988) Metabolism of N-mtrosodtalkylammes by human ltver mtcrosomes Cancer Res 88, 1499–1504.
Waxman, D. J, Attisano, C., Guengerich, F. P, and Lapenson, D P. (1988) Human hver microsomal steroid metabolism: Identificatton of the maJor microsoma1 steroid hormone Go-hydroxylase cytochrome P-450 enzyme Arch Blochem Bzophys. 263, 424–436.
Guengertch, F P, Martin, M V, Beaune, P H, Kremers, P, Wolff, T, and Waxman, D. J. (1986) Characterization of rat and human liver mtcrosomal cytochrome P-450 forms involved in mfedipme oxidation, a prototype for genetic polymorphism in oxidative drug metabolism. J Bzol Chem 261, 5051–5060
Gonzalez, F. J., Schmid, B., Umeno, M., McBride, 0. W., Hardwtck, J. P, Meyer, U A, Gelbom, H V, and Idle, J R (1988) Human P450PCNl sequence, chromosome localization and direct evidence through cDNA expression that P450PCNl IS mfedtpme oxidase DNA 7, 79–86.
Powell, P. K., Wolf, I., and Lasker, J. M. (1996) Identrficatton of CYP4All as the maJor lauric acid o-hydroxylase in human liver microsomes Arch Bzochem Blophys. 335, 219–226
Maeda, Y., Eggertsen, G., Nyberg, B., Setogucht, T, Okuda, K, Emarsson, K, and Bjorkhem, I. (1995) Immunochemical determination of human cholesterol 7a-hydroxylase. Eur J Biochem 228, 144–148
Bourdt, M, Larrey, D, Nataf, J, Bernuau, J., Pessayre, D, Iwasaki, M, Guengerich, F P, and Beaune, P H. (1990) Anti-liver endoplasmic reticulum autoantibodtes are directed against human cytochrome P-4501A2: a specific marker of dihydralazme-induced hepatms J. Clan Invest 85, 1967–1973.
Sonnichsen, D S, Lm, Q., Schuetz, E. G., Schuetz, J. D, Pappo, A., and Relling, M V (1995) Variabihty in human cytochrome P450 pachtaxel metabolism J Pharmacol. Exp Ther 275, 566–575.
Richardson, T. H, Jung, F, Griffin, K J, Wester, M, Raucy, J L, Kemper, B, Bornheim, L. M., Hassett, C., Omiecmski, C J, and Johnson, E. F.(1995) A universal approach to the expresston of human and rabbit cytochrome P45Os of the 2C subfamily in Escherlchla COIL Arch. Blochem Biophys 323, 87–96.
Yamazakt, H., Guo, Z., Persmark, M, Mimura, M., Inoue, K., Guengerich, F. P, and Shimada, T. (1994) Bufuralol hydroxylation by cytochrome P4502D6 and IA2 enzymes in human liver microsomes. Mol Pharmacol 46, 568–577
Draper, A. J., Madan, A., and Parkinson, A. (1997) Inhibttton of coumarm 7-hydroxylase activity in human liver microsomes Arch Blochem Bzophys 341, 47–61
Gorski, J C, Jones, D. R., Wrighton, S A, and Hall, S D (1997) Contributton of human CYP3A subfamtly members to the 6-hydroxylation of chlorzoxazone Xenoblotica 27, 243–256
Wang, R W and Lu, A Y H (1997) Inhibitory anti-peptide antibody against human CYP3A4. Drug Metab Dispos 25, 762–767.
Clarke, S E., Baldwin, S. J., Bloomer, J C., Ayrton, A. D., Sozto, R S., and Chenery, R. J (1994) Laurie acid as a model substrate for the simultaneous determmation of cytochrome P4502El and 4A in hepattc microosomes. Chem Res. Toxlcol. 7, 836–842.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1998 Humana Press Inc.
About this protocol
Cite this protocol
K. H. Chang, T., J. Waxman, D. (1998). Catalytic Assays for Human Cytochrome P450. In: Phillips, I.R., Shephard, E.A. (eds) Cytochrome P450 Protocols. Methods in Molecular Biology™, vol 107. Humana Press. https://doi.org/10.1385/0-89603-519-0:95
Download citation
DOI: https://doi.org/10.1385/0-89603-519-0:95
Publisher Name: Humana Press
Print ISBN: 978-0-89603-519-5
Online ISBN: 978-1-59259-580-8
eBook Packages: Springer Protocols