Chronic lymphocytic leukemia: Molecular genetics and animal models

Y. Pekarsky, G. A. Calin, R. Aqeilan, C. M. Croce*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

32 Scopus citations


Chronic lymphocytic leukemia accounts for almost 30% of all adult leukemia cases in the United States and Western Europe. Although several common genomic abnormalities in CLL have been identified, mutational and functional analysis of corresponding genes so far have not proved their involvement in CLL. Our latest studies demonstrated functional involvement of Tell oncoprotein and microRNA genes in the pathogenesis of CLL. Deregulated expression of Tell in transgenic mice resulted in CLL. These CLL tumors showed abnormalities in expression of murine microRNA genes mmu-mir-15a and mmu-mir-16-1. Interestingly, human homologs of these genes, mir-15a and mir-16-1, located at the chromosome 13q14 are also deleted in human CLL samples. In this review we summarize and discuss these new developments. These recently emerged insights into the molecular mechanisms of CLL will allow for the development of new approaches to treat this disease.

Original languageAmerican English
Pages (from-to)51-70
Number of pages20
JournalCurrent Topics in Microbiology and Immunology
StatePublished - 2005
Externally publishedYes


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