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EXPRESSION OF CYTOCHROME P450 AND OTHER BIOTRANSFORMATION GENES IN FETAL AND ADULT HUMAN NASAL MUCOSA

Xiuling Zhang, Qing-Yu Zhang, Dazhi Liu, Ting Su, Yan Weng, Guoyu Ling, Ying Chen, Jun Gu, Boris Schilling and Xinxin Ding
Drug Metabolism and Disposition October 2005, 33 (10) 1423-1428; DOI: https://doi.org/10.1124/dmd.105.005769
Xiuling Zhang
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Qing-Yu Zhang
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Dazhi Liu
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Ting Su
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Yan Weng
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Guoyu Ling
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Ying Chen
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Jun Gu
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Boris Schilling
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Xinxin Ding
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Abstract

Despite recent progress in the identification and characterization of numerous nasal biotransformation enzymes in laboratory animals, the expression of biotransformation genes in human nasal mucosa remains difficult to study. Given the potential role of nasal biotransformation enzymes in the metabolism of airborne chemicals, including fragrance compounds and therapeutic agents, as well as the potential interspecies differences between laboratory animals and humans, it would be highly desirable to identify those biotransformation genes that are expressed in human nasal mucosa. In this study, a global gene expression analysis was performed to compare biotransformation enzymes expressed in human fetal and adult nasal mucosa to those expressed in liver. The identities of a list of biotransformation genes with apparently nasal mucosa-selective expression were subsequently confirmed by RNA-polymerase chain reaction (PCR) and DNA sequencing of the PCR products. Further quantitative RNA-PCR experiments indicated that, in the fetus, aldehyde dehydrogenase 6 (ALDH6), CYP1B1, CYP2F1, CYP4B1, and UDP glucuronosyltransferase 2A1 are expressed preferentially in the nasal mucosa and that ALDH7, flavin-containing monooxygenase 1, and glutathione S-transferase P1 are at least as abundant in the nasal mucosa as in the liver. The nasal mucosal expression of CYP2E1 was also detected. These findings provide a basis for further explorations of the metabolic capacity of the human nasal mucosa for xenobiotic compounds.

Footnotes

  • This work was supported in part by grants from the National Institutes of Health (ES07462 and CA092596); a Fogarty International Research Collaboration Award (TW01177) from the Fogarty International Center, National Institutes of Health; and a grant from Givaudan Fragrance Research.

  • Article, publication date, and citation information can be found at http://dmd.aspetjournals.org.

  • doi:10.1124/dmd.105.005769.

  • ABBREVIATIONS: P450, cytochrome P450; PCR, polymerase chain reaction, ALDH, aldehyde dehydrogenase; FMO, flavin-containing monooxygenase; UGT, UDP-glucuronosyltransferase; GST, glutathione S-transferase; bp, base pair(s).

    • Received May 29, 2005.
    • Accepted July 8, 2005.
  • The American Society for Pharmacology and Experimental Therapeutics
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Drug Metabolism and Disposition: 33 (10)
Drug Metabolism and Disposition
Vol. 33, Issue 10
1 Oct 2005
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OtherShort Communication

EXPRESSION OF CYTOCHROME P450 AND OTHER BIOTRANSFORMATION GENES IN FETAL AND ADULT HUMAN NASAL MUCOSA

Xiuling Zhang, Qing-Yu Zhang, Dazhi Liu, Ting Su, Yan Weng, Guoyu Ling, Ying Chen, Jun Gu, Boris Schilling and Xinxin Ding
Drug Metabolism and Disposition October 1, 2005, 33 (10) 1423-1428; DOI: https://doi.org/10.1124/dmd.105.005769

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EXPRESSION OF CYTOCHROME P450 AND OTHER BIOTRANSFORMATION GENES IN FETAL AND ADULT HUMAN NASAL MUCOSA

Xiuling Zhang, Qing-Yu Zhang, Dazhi Liu, Ting Su, Yan Weng, Guoyu Ling, Ying Chen, Jun Gu, Boris Schilling and Xinxin Ding
Drug Metabolism and Disposition October 1, 2005, 33 (10) 1423-1428; DOI: https://doi.org/10.1124/dmd.105.005769
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