CYP1B1 expression in human lung

Simon D. Spivack, Gregory J. Hurteau, Andrew A. Reilly, Kenneth M. Aldous, Xinxin Ding, Laurence S. Kaminsky

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

Cytochrome P450 1B1 is a recently recognized phase I bioactivating enzyme with high affinity for both inhaled tobacco carcinogens and 17β-estradiol. We evaluated the human lung expression of this multifunctional member of the P450 superfamily across 16 individuals. Expression of CYP1B1 was evaluated by qualitative reverse transcription-polymerase chain reaction and Western immunoblots performed on human tumor and nontumor lung tissue. Expression at both mRNA and protein levels was then correlated with smoking history, plasma biomarkers of tobacco exposure (nicotine and cotinine), gender, and tumor histology. CYP1B1 mRNA and protein were detected in 94 and 100% of individuals, respectively. Multivariate analysis confirmed that there were more subjects displaying CYP1B1 mRNA expression in tumor than nontumor tissue (p = 0.0003). Correlation of CYP1B1 protein with plasma cotinine levels was statistically marginal (p = 0.027). Self-reported smoking history, gender, and tumor histology did not correlate with gene expression in the multivariate model. After multivariate modeling for confounding factors, the expression patterns of 5 of 16 individuals appeared to differ from the group as a whole for mRNA and/or protein. We conclude that CYP1B1 is commonly expressed in human lung and hypothesize that it may be an important phase I enzyme with respect to human lung carcinogen metabolism, warranting an understanding of regulatory control and coding region polymorphisms.

Original languageEnglish (US)
Pages (from-to)916-922
Number of pages7
JournalDrug Metabolism and Disposition
Volume29
Issue number6
StatePublished - 2001
Externally publishedYes

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Tumors
Cotinine
Lung
Messenger RNA
Histology
Tobacco
Carcinogens
Neoplasms
Proteins
Smoking
History
Tissue
Plasmas
Polymerase chain reaction
Biomarkers
Enzymes
Transcription
Polymorphism
Nicotine
Metabolism

ASJC Scopus subject areas

  • Pharmacology
  • Toxicology

Cite this

Spivack, S. D., Hurteau, G. J., Reilly, A. A., Aldous, K. M., Ding, X., & Kaminsky, L. S. (2001). CYP1B1 expression in human lung. Drug Metabolism and Disposition, 29(6), 916-922.

CYP1B1 expression in human lung. / Spivack, Simon D.; Hurteau, Gregory J.; Reilly, Andrew A.; Aldous, Kenneth M.; Ding, Xinxin; Kaminsky, Laurence S.

In: Drug Metabolism and Disposition, Vol. 29, No. 6, 2001, p. 916-922.

Research output: Contribution to journalArticle

Spivack, SD, Hurteau, GJ, Reilly, AA, Aldous, KM, Ding, X & Kaminsky, LS 2001, 'CYP1B1 expression in human lung', Drug Metabolism and Disposition, vol. 29, no. 6, pp. 916-922.
Spivack SD, Hurteau GJ, Reilly AA, Aldous KM, Ding X, Kaminsky LS. CYP1B1 expression in human lung. Drug Metabolism and Disposition. 2001;29(6):916-922.
Spivack, Simon D. ; Hurteau, Gregory J. ; Reilly, Andrew A. ; Aldous, Kenneth M. ; Ding, Xinxin ; Kaminsky, Laurence S. / CYP1B1 expression in human lung. In: Drug Metabolism and Disposition. 2001 ; Vol. 29, No. 6. pp. 916-922.
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