Molecular epidemiology of lung cancer and the modulation of markers of chronic carcinogen exposure by chemopreventive agents

F. P. Perera, D. Tang, R. A. Grinberg-Funes, M. A. Blackwood, Chris Dickey, W. Blaner, R. M. Santella

Research output: Contribution to journalArticle

Abstract

Chronic inhalation exposure to environmental carcinogens such as polycyclic aromatic hydrocarbons (PAHs), cigarette smoke, 4-aminobiphenyl (4-ABP), ethylene oxide, and styrene is associated with elevations in biomarkers such as DNA adducts, protein adducts, sister chromatid exchanges (SCEs), chromosomal aberrations, gene mutation, and/or oncogene activation. These biomarkers indicate an increased cancer risk for the exposed population, although quantitative estimates cannot be made with certainty. There is convincing epidemiological evidence that the antioxidant and free radical-scavenging vitamins C and E and β-carotene (β-C) protect against cancer of the lung and other epithelial tissues, with somewhat weaker evidence for retinol. Experimental studies demonstrate that these micronutrients are capable of blocking or reducing tumor formation caused by diverse carcinogens. A variety of mechanisms appear to be involved, including suppression of carcinogen activation, enhancement of carcinogen detoxification, induction of cellular differentiation, inhibition of mutagenesis, enhancement of immunologic function, and/or reduction of the formation of carcinogen-DNA adducts, SCEs, micronuclei, and other markers of genotoxic damage. Therefore, we have recently investigated the possible modifying effect of serum vitamins C and E, β-C, and retinol on a number of such biomarkers in a case-control study of lung cancer, and in a cross-sectional study of heavy smokers. Preliminary results indicate an inhibitory effect of certain vitamins on DNA adduct formation. A significant number of human intervention trials are ongoing involving these vitamins. It appears that biomarkers can provide useful intermediate endpoints for assessment of both the mechanisms and the efficacy of chemopreventive agents.

Original languageEnglish (US)
Pages (from-to)119-128
Number of pages10
JournalJournal of Cellular Biochemistry
Volume52
Issue numberSUPPL. 17 F
StatePublished - 1993

Fingerprint

Molecular Epidemiology
Biomarkers
Tumor Biomarkers
Carcinogens
DNA Adducts
Lung Neoplasms
Modulation
Sister Chromatid Exchange
Vitamin A
Vitamin E
Vitamins
Ascorbic Acid
Chemical activation
Environmental Carcinogens
Inhalation Exposure
Ethylene Oxide
Detoxification
Mutagenesis
Styrene
Micronutrients

Keywords

  • biomarkers
  • chemoprevention
  • lung cancer
  • molecular epidemiology

ASJC Scopus subject areas

  • Biochemistry
  • Cell Biology
  • Medicine(all)

Cite this

Perera, F. P., Tang, D., Grinberg-Funes, R. A., Blackwood, M. A., Dickey, C., Blaner, W., & Santella, R. M. (1993). Molecular epidemiology of lung cancer and the modulation of markers of chronic carcinogen exposure by chemopreventive agents. Journal of Cellular Biochemistry, 52(SUPPL. 17 F), 119-128.

Molecular epidemiology of lung cancer and the modulation of markers of chronic carcinogen exposure by chemopreventive agents. / Perera, F. P.; Tang, D.; Grinberg-Funes, R. A.; Blackwood, M. A.; Dickey, Chris; Blaner, W.; Santella, R. M.

In: Journal of Cellular Biochemistry, Vol. 52, No. SUPPL. 17 F, 1993, p. 119-128.

Research output: Contribution to journalArticle

Perera, FP, Tang, D, Grinberg-Funes, RA, Blackwood, MA, Dickey, C, Blaner, W & Santella, RM 1993, 'Molecular epidemiology of lung cancer and the modulation of markers of chronic carcinogen exposure by chemopreventive agents', Journal of Cellular Biochemistry, vol. 52, no. SUPPL. 17 F, pp. 119-128.
Perera, F. P. ; Tang, D. ; Grinberg-Funes, R. A. ; Blackwood, M. A. ; Dickey, Chris ; Blaner, W. ; Santella, R. M. / Molecular epidemiology of lung cancer and the modulation of markers of chronic carcinogen exposure by chemopreventive agents. In: Journal of Cellular Biochemistry. 1993 ; Vol. 52, No. SUPPL. 17 F. pp. 119-128.
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