Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comment
. 2014 Apr 14;25(4):411-3.
doi: 10.1016/j.ccr.2014.03.028.

Harnessing the hidden antitumor power of the MLL-AF4 oncogene to fight leukemia

Affiliations
Comment

Harnessing the hidden antitumor power of the MLL-AF4 oncogene to fight leukemia

Smita Matkar et al. Cancer Cell. .

Abstract

It is unclear whether the antiproliferative/proapoptotic activity of oncogenes can be pharmacologically reactivated in cancer cells. In this issue of Cancer Cell, Liu and colleagues report that a proteasome inhibitor reactivates an MLL-AF4 controlled antitumor program to kill leukemia cells in an oncogene dose- and cell type-dependent manner.

PubMed Disclaimer

Conflict of interest statement

Conflict of Interest

No conflicts of interests are declared by any of the authors.

Figures

Figure 1
Figure 1. A model for proteasome inhibitor-induced increase of the MLL-AF4 level and induction of PAX5-dependent transcription of p27 in pro-B MLL-AF4 leukemia cells
The proteins are not drawn to scale, nor is the protein complex precisely stoichiometric as shown.

Comment on

References

    1. Ayton PM, Cleary ML. Transformation of myeloid progenitors by MLL oncoproteins is dependent on Hoxa7 and Hoxa9. Genes Dev. 2003;17:2298–2307. - PMC - PubMed
    1. Frankland-Searby S, Bhaumik SR. The 26S proteasome complex: an attractive target for cancer therapy. Biochim Biophys Acta. 2012;1825:64–76. - PMC - PubMed
    1. Krivtsov AV, Armstrong SA. MLL translocations, histone modifications and leukaemia stem-cell development. Nat Rev Cancer. 2007;7:823–833. - PubMed
    1. Krivtsov AV, Feng Z, Lemieux ME, Faber J, Vempati S, Sinha AU, Xia X, Jesneck J, Bracken AP, Silverman LB, et al. H3K79 methylation profiles define murine and human MLL-AF4 leukemias. Cancer Cell. 2008;14:355–368. - PMC - PubMed
    1. Liu H, Cheng EH, Hsieh JJ. Bimodal degradation of MLL by SCFSkp2 and APCCdc20 assures cell cycle execution: a critical regulatory circuit lost in leukemogenic MLL fusions. Genes Dev. 2007;21:2385–2398. - PMC - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources