| Title | Comparison of mammary tumorigenesis between litters in relation to mammary tumor virus antigenic expression in the milk of C3H/He mice. | | Author(s) | Nagasawa H, Nakajima Y, Morimoto J, Imai S, Tsubura Y | | Source | Life Sci 1982 Jul 5; 31(1):83-8. | | MeSH | Animals
Antigens, Viral
Estrus
Female
Mammary Neoplasms, Experimental
Mammary Tumor Virus, Mouse
Mice
Mice, Inbred C3H
Milk
Pregnancy
| | Abstract | As a possible step to estimate the relationship between mammary tumor virus (MTV) and mammary tumorigenesis in mice, MTV antigenic expression in mother's milk and spontaneous mammary tumorigenesis in their daughters were compared between the 1st, the 2nd and the 3rd litters of the highly inbred strains of C3H/H3 mice with low mammary tumor incidence. While MTV antigenic expression was detected in all undiluted samples at each litter by immunodiffusion test, the amount of antigen as measured by the single radial immunodiffusion method was increased with increasing litter numbers. On the other hand, the development of preneoplastic mammary hyperplastic alveolar nodules was different little between litters and mammary tumor incidence by 13 months of age was very low with no difference in all litters. The pattern of estrous cycles and plasma prolactin level were also similar in each litter. The results suggest that spontaneous mammary tumorigenesis in mice is not always affected quantitatively by the amount of MTV when endocrine and genetical conditions are similar. | | Language | eng | | Pub Type(s) | Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
| | PubMed ID | 6287151 |
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