PMID: 9659572Jul 11, 1998Paper

Tobacco smoke as a mouse lung carcinogen

Experimental Lung Research
H Witschi

Abstract

Male and female strain A/J mice were exposed to environmental tobacco smoke that was generated by burning Kentucky 1R4F reference cigarettes. Exposures lasted 6 hours per day, 5 days per week for a total of 5 months, followed by a 4-month recovery period in air. Chamber concentrations of total suspended particulate matter (TSP) ranged from 50 to 90 mg/m3. Under these conditions, the average lung tumor multiplicity was 1.2 to 1.4 tumors per lung, significantly higher (p < 0.05) than in concomitant controls. ETS exposure led to a comparatively modest increase in cell proliferation in the alveolar zone during the first 2 weeks and in the terminal airways during the first 6 weeks. In the nasal passages cell proliferation was increased throughout, but reverted down to normal when the animals were placed in air. Smoke exposure increased immunostaining for cytochrome P4501A1 in airways and parenchyma. Exposure to the smoke gas phase only produced a similar increase in lung tumor multiplicity as did exposure to full smoke, but failed to induce P4501A1. This suggested that gas-phase constituents play an important role in tobacco smoke carcinogenesis. The strain A/J lung tumor model is thus suitable to study questions associated with tob...Continue Reading

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Citations

Apr 20, 2004·Toxicology and Applied Pharmacology·Scott W BurchielMatthew D Reed
Mar 26, 2004·Regulatory Toxicology and Pharmacology : RTP·Daniel MeckleyJames E Swauger
May 12, 1998·Journal of Hepatology·Y DeugnierO Loréal
Mar 2, 2002·Carcinogenesis·Hanspeter WitschiKent E Pinkerton
Jul 24, 2010·Biochemistry and Cell Biology = Biochimie Et Biologie Cellulaire·Xiao-Yuan XieZhong-Ying Shen
Oct 5, 2010·Free Radical Biology & Medicine·Angela K TollefsonRussell P Bowler
Sep 12, 2006·Free Radical Biology & Medicine·John C Stavrides
Nov 18, 2005·Cancer Letters·Hanspeter WitschiRobert R Maronpot
Apr 1, 2014·Toxicology in Vitro : an International Journal Published in Association with BIBRA·Tanja HansenJürgen Borlak
Jul 31, 2007·International Journal of Toxicology·Z WalaszekT J Slaga
Sep 28, 1999·Oncogene·D A Tuveson, T Jacks
May 22, 2013·Nature Reviews. Clinical Oncology·Robert L Keith, York E Miller
Oct 10, 2001·Therapeutic Drug Monitoring·P R Mayo
Feb 9, 2021·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Michael J OldhamArkadiusz K Kuczaj

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