Protein Information

Name aryl hydrocarbon hydroxylase
Synonyms Aryl hydrocarbon hydroxylase; Flavoprotein linked monooxygenase; Xenobiotic monooxygenase; Microsomal monooxygenase; CP37; CYP3A7; CYPIIIA 7; CYPIIIA7…

Compound Information

Name hexachlorobenzene
CAS 1,2,3,4,5,6-hexachlorobenzene

Reference List

PubMed Abstract RScore(About this table)
6286155 Goldstein JA, Linko P, Huckins JN, Stalling DL: Structure-activity relationships of chlorinated benzenes as inducers of different forms of cytochrome P-450 in rat liver. Chem Biol Interact. 1982 Aug;41(2):131-9.

Hexachlorobenzene (HCB) produced increases in ethoxyresorufin (ERR) O-deethylase, aryl hydrocarbon hydroxylase (AHH) and aminopyrine N-demethylase activities in rat liver phenobarbital which were intermediate between those produced by phenobarbital and 3,4-benzpyrene (BP), alpha-Naphthoflavone (ANF) selectivity inhibited ERR activity in BP and HCB-induced microsomes (94% and 88%).
31(0,1,1,1) Details
3596752 Li SM, Denomme MA, Leece B, Safe S, Dutton D, Parkinson A, Thomas PE, Ryan D, Bandiera S, Reik LM, et al.: Hexachlorobenzene and substituted pentachlorobenzenes (X-C6Cl5) as inducers of hepatic cytochrome P-450-dependent mono-oxygenases. IARC Sci Publ. 1986;(77):527-34.

Hexachlorobenzene (HCB) and 2,3,4,4',5-pentachlorobiphenyl induced a similar spectrum of cytochrome-P-450-dependent mono-oxygenase activities in the rat, including 4-dimethylaminoantipyrine N-demethylase, aryl hydrocarbon hydroxylase (AHH) and ethoxyresorufin O-deethylase (EROD).
6(0,0,1,1) Details
4043593 Jansing RL, Shain W: Aryl hydrocarbon hydroxylase induction in adult rat hepatocytes in primary culture by several chlorinated aromatic hydrocarbons including 2,3,7,8-tetrachlorodibenzo-p-dioxin. Fundam Appl Toxicol. 1985 Aug;5(4):713-20.

AHH induction was extremely sensitive to two planar polyaromatic hydrocarbons, 2,3,7,8-TCDD and 2,3,7,8-tetrachlorodibenzofuran, and the PCB congener 3,4,3',4'-tetrachlorobiphenyl, but insensitive to 2,6-dichlorodibenzofuran, 2,5,2',5'-tetrachlorobiphenyl, 2,4,5,2',4',5'-hexachlorobiphenyl, and hexachlorobenzene.
2(0,0,0,2) Details
3236339 Rizzardini M, Graziani A, Carugo C, Cantoni L: Investigations on the role of free radical processes in hexachlorobenzene-induced porphyria in mice. J Biochem Toxicol. 1988 Spring;3:33-45.

The combined treatment resulted in a significant reduction of HCB's inductive effects on microsomal heme and cytochromes P-450 and b5 and on the activity of aryl hydrocarbon hydroxylase.
1(0,0,0,1) Details
3629612 Cantoni L, Rizzardini M, Tacconi MT, Graziani A: Comparison of hexachlorobenzene-induced alterations of microsomal membrane composition and monooxygenase activity in male and female rats. Toxicology. 1987 Sep;45(3):291-305.

Analysis of patterns of induction of microsomal monooxygenases showed that aminopyrine-N-demethylase activity doubled in both sexes after treatment while aryl hydrocarbon hydroxylase activity was 16 times the control value in the females and 1.5 times in the males.
1(0,0,0,1) Details
7126264 Holme JA, Dybing E: Induction of liver microsomal cytochrome P-450 and associated monooxygenases by octachlorostyrene in inbred strains of mice. Biochem Pharmacol. 1982 Aug 1;31(15):2523-9.

Single intraperitoneal injections of octachlorostyrene (OCS) and hexachlorobenzene in genetically polycyclic aromatic hydrocarbon "responsive' C57/BL/6 (B6) mice led to a time- and dose-dependent increase in the levels of liver microsomal cytochromes P-450 and b5 as well as in the activities of NADPH cytochrome P-450 (cytochrome c) reductase, ethylmorphine (EM) N-demethylase, 4-nitroanisole (PNA) O-demethylase and acetanilide 4-hydroxylase (AcA hydroxylase).
No, or only a very moderate, increase in the activity of aryl hydrocarbon hydroxylase was seen after OCS and HCB, respectively.
1(0,0,0,1) Details
3981666 Carpenter HM, Williams DE, Buhler DR: A comparison of the effects of hexachlorobenzene, beta-naphthoflavone, and phenobarbital on cytochrome P-450 and mixed-function oxidases in Japanese quail. J Toxicol Environ Health. 1985;15(1):93-108.

However, a differential response to HCB and BNF treatment was seen in the activities of hepatic NADPH-cytochrome P-450 reductase, epoxide hydrolase, GSH-t (microsomal), aryl hydrocarbon hydroxylase (AHH), and ethoxycoumarin O-deethylase (ECOD).
1(0,0,0,1) Details
4032490 Carpenter HM, Williams DE, Buhler DR: Hexachlorobenzene-induced porphyria in Japanese quail: changes in microsomal enzymes. J Toxicol Environ Health. 1985;15(3-4):431-44.

Changes included elevation of microsomal protein concentrations and increases in the specific content of cytochrome P-450, in the activities of aryl hydrocarbon hydroxylase (AHH), biphenyl hydroxylase (BPH), ethoxyresorufin-O-deethylase (EROD), and ethoxycoumarin-O-deethylase (ECOD), and in cytosolic and microsomal glutathione S-transferase (GSH-t) levels.
1(0,0,0,1) Details
3952775 Rozman K, Gorski JR, Rozman P, Parkinson A: Reduced serum thyroid hormone levels in hexachlorobenzene-induced porphyria. Toxicol Lett. 1986 Jan;30(1):71-8.

0(0,0,0,0) Details