A high-tumor-incidence subline of the D1 mouse mammary hyperplastic outgrowth line: Effect of carcinogens

R. L. Ashley, Robert Cardiff, T. S. Pratt, L. J. Faulkin

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3 Citations (Scopus)

Abstract

Mammary tumorigenesis in some mouse strains is characterized by the appearance of a preneoplastic lesion, the hyperplastic alveolar nodule (HAN). The biology of the HAN has been characterized primarily through the study of stable outgrowth lines of serially transplanted HAN. One outgrowth line, DI, which was developed and carried in female BALB/c mice, has been described as a low-tumor-incidence line that does not express murine mammary tumor virus (MuMTV) and is susceptible to hormonal, chemical, and viral carcinogens. In this report, a high-tumor-incidence subline of DI, DI/UCD, is described. Although DI/UCD, like DI, is susceptible to the chemical carcinogen 7,12-dimethylbenz[a]anthracene, an increase in tumor incidence was not observed when DI/UCD outgrowth was exposed to hormones by means of pituitary isografts. Unlike DI, DI/UCD is refractory to the carcinogenic action of MuMTV. Both DI and the DI/UCD subline contained the endogenous MuMTV provirus but did not contain exogenous MuMTV provirus sequences. MuMTV antigen was not detected in DI/UCD outgrowths or tumors. RNA hybridizable to MuMTV complementary DNA was detected in some DI/UCD outgrowths and tumors but did not appear to correlate with tumorigenesis.

Original languageEnglish (US)
Pages (from-to)639-645
Number of pages7
JournalJournal of the National Cancer Institute
Volume69
Issue number3
StatePublished - Jan 1 1982

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Gammaretrovirus
Carcinogens
Breast
Breast Neoplasms
Incidence
Proviruses
Neoplasms
Carcinogenesis
Isografts
Pituitary Hormones
Neoplasm Antigens
Complementary DNA
RNA

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

A high-tumor-incidence subline of the D1 mouse mammary hyperplastic outgrowth line : Effect of carcinogens. / Ashley, R. L.; Cardiff, Robert; Pratt, T. S.; Faulkin, L. J.

In: Journal of the National Cancer Institute, Vol. 69, No. 3, 01.01.1982, p. 639-645.

Research output: Contribution to journalArticle

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