Sensitivity of Mice to Benzo(a)pyrene Skin Cancer following Acclimation to Cool and Warm Temperature

Harold S. Weiss, Joseph F. Pitt, Kirklyn M. Kerr, Albert Hakaim, Steven E. Weisbrode, F. Bernard Daniel

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Skin tumorigenesis induced by benzo(a)pyrene (BaP) in male C3H/HeJ mice was accelerated in a cool (Ta = 16°) and inhibited in a warm (Ta = 32°) environment, compared to the normal Ta = 23°. For example, repetitive, topical application of 0.2 mg BaP/week in 0.08 toluene resulted in (i) the mean tumor appearance time occurring 4-5 weeks earlier in cool and 2-3 weeks later in warm compared with the 21-22 weeks average in normal Ta; (ii) the average number of tumors per mouse increasing twice as fast in cool as in warm Ta; and (iii) shortened survival in cool, lengthened in warm. There were few metastases to internal organs at any temperature. Once initiated, tumors progressed similarly in all Ta's to squamous cell carcinomas. Cool and warm Ta per se had little effect on spontaneous tumors, survival, body weight, rectal temperature, or hair growth. However, skin temperature was 1-2° lower in cool and 1-2° higher in warm Ta than the normal 32-33°. Physiological adaptation was particularly evident in the 66% average higher food intake in cool and 63% lower in warm Ta. These results may help in defining environmental risks in cancer, in increasing the efficiency of cancer screening trials, and in exploring physiological modifiers of carcinogenesis.

Original languageEnglish (US)
Pages (from-to)122-128
Number of pages7
JournalProceedings of the Society for Experimental Biology and Medicine
Volume167
Issue number1
DOIs
StatePublished - 1981
Externally publishedYes

Fingerprint

Acclimatization
Benzo(a)pyrene
Skin Neoplasms
Tumors
Skin
Temperature
Neoplasms
Carcinogenesis
Toluene
Physiological Adaptation
Skin Temperature
Inbred C3H Mouse
Screening
Early Detection of Cancer
Hair
Squamous Cell Carcinoma
Eating
Body Weight
Neoplasm Metastasis
Growth

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Sensitivity of Mice to Benzo(a)pyrene Skin Cancer following Acclimation to Cool and Warm Temperature. / Weiss, Harold S.; Pitt, Joseph F.; Kerr, Kirklyn M.; Hakaim, Albert; Weisbrode, Steven E.; Daniel, F. Bernard.

In: Proceedings of the Society for Experimental Biology and Medicine, Vol. 167, No. 1, 1981, p. 122-128.

Research output: Contribution to journalArticle

Weiss, Harold S. ; Pitt, Joseph F. ; Kerr, Kirklyn M. ; Hakaim, Albert ; Weisbrode, Steven E. ; Daniel, F. Bernard. / Sensitivity of Mice to Benzo(a)pyrene Skin Cancer following Acclimation to Cool and Warm Temperature. In: Proceedings of the Society for Experimental Biology and Medicine. 1981 ; Vol. 167, No. 1. pp. 122-128.
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