## Abstract Old New Zealand Black (NZB) mice frequently develop reticulumโcell sarcoma and clones of aneuploid cells in their spleens. In order to define the relationship between neoplasms and chromosomal abnormalities, the pattern of distribution of aneuploid cells was studied to see if it corresp
Specificity of acquired clonal chromosome abnormalities in new zealand black mice
โ Scribed by Philip J. Fialkow; Jean I. Bryant; Jan M. Friedman
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- French
- Weight
- 507 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0020-7136
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
New Zealand Black (NZB) mice, an inbred strain characterized by immunological dysfunction and lymphoreticular malignancy, also develop populations of aneuploid spleen cells. In detailed cytogenetic analyses performed on 10 NZBs, the chromosomally abnormal cells were found to be clonally related within each mouse. Moreover, the karyotypic changes observed were highly nonโrandom, usually involving the 15 (10/10 mice), 2 (8/10 mice), 16 or 17 (9/10 mice), and sex (6/10 mice) chromosomes. These observations suggest an important relationship between chromosomal alterations and tumorigenesis in NZB mice and emphasize the role of chromosome 15 in murine abnormal lymphoreticular proliferations.
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## Abstract A longitudinal study of 40 New Zealand Black (NZB) mice and 20 BALB/c control animals was performed. A significant association was observed between the presence of acquired spleenโcell aneuploidy at some time during life and development of histological evidence of reticulumโcell neoplas
## Abstract Polyclonal B cell activation is a hallmark of the immune dysregulation in New Zealand Black (NZB) mice. We have previously shown that the splenic B cell activation is associated with increased CD80 expression. Here we show that abnormal expansions of CD80โexpressing GC, CD5^+^, marginal