Distinctive patterns of hyperplasia in transgenic mice with mouse mammary tumor virus transforming growth factor-alpha. Characterization of mammary gland and skin proliferations.
Journal Article (Journal Article)
Eight lines of transgenic mice expressing a mouse mammary tumor virus (MMTV) human transforming growth factor-alpha (TGF alpha) fusion gene were established. Three lines with distinctive phenotypes are presented. All have proliferative changes of the mammary gland. One line has sebaceous gland hyperplasia of the skin. Five histologic patterns of mammary gland hyperplasia based on two of these lines were identified: cystic hyperplasia, solid hyperplasia, dysplasia, adenoma, and adenocarcinoma. Human TGF alpha mRNA and protein were produced in all patterns but appeared reduced in solid hyperplasia, dysplasia, and adenocarcinoma. TGF alpha immunoreactivity in the mammary tissue, cystic fluid, and serum did not show significant differences; hyperplasia developed in 65% of multiparous mice and 45% of virgin mice by 12 months of age. Adenocarcinoma developed in 40% of multiparous mice and 30% of virgin mice by 16 months of age. These transgenic lines may provide useful models of mammary and sebaceous gland hyperplasia analogous to human disease.
Full Text
Duke Authors
Cited Authors
- Halter, SA; Dempsey, P; Matsui, Y; Stokes, MK; Graves-Deal, R; Hogan, BL; Coffey, RJ
Published Date
- May 1992
Published In
Volume / Issue
- 140 / 5
Start / End Page
- 1131 - 1146
PubMed ID
- 1316084
Pubmed Central ID
- PMC1886506
International Standard Serial Number (ISSN)
- 0002-9440
Language
- eng
Conference Location
- United States