Molecular basis of CLL.
- Authors
- Pekarsky, Yuri; Zanesi, Nicola; Croce, Carlo M
- Year
- 2010
- Journal
- Seminars in cancer biology
- PMID
- 20863894
- DOI
- 10.1016/j.semcancer.2010.09.003
- PMCID
- PMC2997849
B-cell chronic lymphocytic leukemia (CLL), the most common leukemia in the Western world, results from an expansion of a rare population of CD5+ mature B-lymphocytes. CLL occurs in two forms, aggressive and indolent. For the most part indolent CLL is characterized by low ZAP-70 expression and mutated IgH V(H); aggressive CLL shows high ZAP-70 expression and unmutated IgH V(H). Although clinical features and genomic abnormalities in CLL have been studied extensively, molecular mechanisms underlying disease development are still emerging. In the last few years, several important insights were reported in this area. MiR-15/16 targeting BCL2 and MCL1 and DLEU7 targeting TNF pathway were proposed as tumor suppressors at 13q14, a commonly deleted region in indolent CLL. Molecular details of how activation of TCL1, a critical oncogene in aggressive CLL, results in the initiation of this malignancy were clarified. Importance of these pathways was supported by investigations of several mouse models of CLL. Here, we present what has been learned from these new pathways, discuss mouse CLL models and how these mouse models recapitulate the molecular mechanisms of this common leukemia.
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| 40 | Introduction β Mouse models of CLL β APRIL driven mouse model of CLL | NF-kB is a downstream target of TRAFs (Figure 1). Hence, it is possible that activation of NF-kBβ¦ |
| 41 | Introduction β Mouse models of CLL β APRIL driven mouse model of CLL | milder phenotype than TCL1 or TRAF2DN/BCL2 transgenic animals. APRIL mice showed only mild expansionβ¦ |
| 42 | Conclusions | In the last few years, several important studies uncovering molecular mechanisms of CLL pathogenesis⦠|
| 43 | Conclusions | BCL2/TRAF2DN transgenic mouse model represents a very interesting parallel and confirmation for the⦠|
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| Detectable clonal mosaicism and its relationship to aging and cancer. | 2012 | 22561519 |
| Detectable clonal mosaicism from birth to old age and its relationship to cancer. | 2012 | 22561516 |
External
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