A novel transgenic mouse model of the human multiple myeloma chromosomal translocation t(14;16)(q32;q23).
basic_science · Level V
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- Record sourced from PubMed, PMID 21224354.
- Also identified by DOI 10.1158/0008-5472.CAN-10-1057.
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Abstract
Multiple myeloma (MM) is a currently incurable neoplasm of terminally differentiated B cells. The translocation and/or overexpression of c-MAF have been observed in human MM. Although c-MAF might function as an oncogene in human MM, there has been no report thus far describing the direct induction of MM by c-MAF overexpression in vivo. In this study, we have generated transgenic (TG) mice that express c-Maf specifically in the B-cell compartment. Aged c-Maf TG mice developed B-cell lymphomas with some clinical features that resembled those of MM, namely, plasma cell expansion and hyperglobulinemia. Quantitative RT-PCR analysis demonstrated that Ccnd2 and Itgb7, which are known target genes of c-Maf, were highly expressed in the lymphoma cells. This novel TG mouse model of the human MM t(14;16)(q32;q23) chromosomal translocation should serve to provide new insight into the role of c-MAF in tumorigenesis.
Medical subject headings
- Disease Models, Animal
- Lymphoma, B-Cell
- Multiple Myeloma
- Proto-Oncogene Proteins c-maf