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- W3122367718 abstract "Progression of chronic lymphocytic leukemia (CLL) results from the expansion of a small fraction of proliferating leukemic B cells. When comparing the global gene expression of recently divided CLL cells with that of previously divided cells, we found higher levels of genes involved in regulating gene expression. One of these was the oncogene Musashi 2 (MSI2), an RNA-binding protein that induces or represses translation. While there is an established role for MSI2 in normal and malignant stem cells, much less is known about its expression and role in CLL. Here we report for the first time ex vivo and in vitro experiments that MSI2 protein levels are higher in dividing and recently divided leukemic cells and that downregulating MSI2 expression or blocking its function eliminates primary human and murine CLL and mature myeloid cells. Notably, mature T cells and hematopoietic stem and progenitor cells are not affected. We also confirm that higher MSI2 levels correlate with poor outcome markers, shorter time-to-first-treatment, and overall survival. Thus, our data highlight an important role for MSI2 in CLL-cell survival and proliferation and associate MSI2 with poor prognosis in CLL patients. Collectively, these findings pinpoint MSI2 as a potentially valuable therapeutic target in CLL." @default.
- W3122367718 created "2021-02-01" @default.
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- W3122367718 date "2021-01-27" @default.
- W3122367718 modified "2023-10-16" @default.
- W3122367718 title "Musashi 2 influences chronic lymphocytic leukemia cell survival and growth making it a potential therapeutic target" @default.
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- W3122367718 doi "https://doi.org/10.1038/s41375-020-01115-y" @default.
- W3122367718 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8024198" @default.
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