Résumé
The mechanism by which cells decide to skip mitosis to become polyploid is largely undefined. Here we used a high-content image-based screen to identify small-molecule probes that induce polyploidization of megakaryocytic leukemia cells and serve as perturbagens to help understand this process. Our study implicates five networks of kinases that regulate the switch to polyploidy. Moreover, we find that dimethylfasudil (diMF, H-1152P) selectively increased polyploidization, mature cell-surface marker expression, and apoptosis of malignant megakaryocytes. An integrated target identification approach employing proteomic and shRNA screening revealed that a major target of diMF is Aurora kinase A (AURKA). We further find that MLN8237 (Alisertib), a selective inhibitor of AURKA, induced polyploidization and expression of mature megakaryocyte markers in acute megakaryocytic leukemia (AMKL) blasts and displayed potent anti-AMKL activity in vivo. Our findings provide a rationale to support clinical trials of MLN8237 and other inducers of polyploidization and differentiation in AMKL.
langue originale | Anglais |
---|---|
Pages (de - à) | 575-589 |
Nombre de pages | 15 |
journal | Cell |
Volume | 150 |
Numéro de publication | 3 |
Les DOIs | |
état | Publié - 3 août 2012 |
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Dans: Cell, Vol 150, Numéro 3, 03.08.2012, p. 575-589.
Résultats de recherche: Contribution à un journal › Article › Revue par des pairs
TY - JOUR
T1 - Identification of regulators of polyploidization presents therapeutic targets for treatment of AMKL
AU - Wen, Qiang
AU - Goldenson, Benjamin
AU - Silver, Serena J.
AU - Schenone, Monica
AU - Dancik, Vlado
AU - Huang, Zan
AU - Wang, Ling Zhi
AU - Lewis, Timothy A.
AU - An, W. Frank
AU - Li, Xiaoyu
AU - Bray, Mark Anthony
AU - Thiollier, Clarisse
AU - Diebold, Lauren
AU - Gilles, Laure
AU - Vokes, Martha S.
AU - Moore, Christopher B.
AU - Bliss-Moreau, Meghan
AU - Verplank, Lynn
AU - Tolliday, Nicola J.
AU - Mishra, Rama
AU - Vemula, Sasidhar
AU - Shi, Jianjian
AU - Wei, Lei
AU - Kapur, Reuben
AU - Lopez, Cécile K.
AU - Gerby, Bastien
AU - Ballerini, Paola
AU - Pflumio, Francoise
AU - Gilliland, D. Gary
AU - Goldberg, Liat
AU - Birger, Yehudit
AU - Izraeli, Shai
AU - Gamis, Alan S.
AU - Smith, Franklin O.
AU - Woods, William G.
AU - Taub, Jeffrey
AU - Scherer, Christina A.
AU - Bradner, James E.
AU - Goh, Boon Cher
AU - Mercher, Thomas
AU - Carpenter, Anne E.
AU - Gould, Robert J.
AU - Clemons, Paul A.
AU - Carr, Steven A.
AU - Root, David E.
AU - Schreiber, Stuart L.
AU - Stern, Andrew M.
AU - Crispino, John D.
N1 - Funding Information: The authors thank Sandeep Gurbuxani, Alex Minella, and Lou Doré for critical reading of the manuscript and Bang Wong for valuable advice on figures of the manuscript. This research was funded by grants from the Samuel Waxman Cancer Research Foundation (J.D.C. and S.I.), the US Israel Binational Science Foundation (to S.I. and J.D.C.), the Leukemia and Lymphoma Society Translational Research Program (J.D.C.), the Children with Leukaemia UK (S.I.), the Israel Science Foundation (S.I.), European Hematology Association (Y.B.), and the Leukemia Research Foundation (Y.B.) and by NIH grants CA101774 (J.D.C.), HL077177 (R.K.), HL075816 (R.K.), and HL081111 (R.K.). Other support included an NIH grant to A.E.C. supporting CellProfiler (GM089652), an NIH grant supporting screening informatics (U54 HG005032), NIH Genomics Based Drug Discovery U54 grants Discovery Pipeline RL1-CA133834, and Driving Medical Projects RL1-GM084437, administratively linked to NIH grants RL1-HG004671 and UL1-DE019585 (A.E.C., P.A.C., V.D., C.B.M., A.M.S., C.A.S., and M.S.). Y.B. is a European Hematology Association Fellow. In vivo treatment of human AMKL samples was supported by Foundation Gustave Roussy and José Carreras Leukemia Foundation- European Hematology Association (T.M.), CEA-EA, Ligue Nationale Contre le Cancer (F.P.), Association Laurette Fugain (F.P.), Société Française d'Hématologie (B.G., F.P.), and Foundation pour la Recherche Médicale (C.T.). The authors would also like to thank Jason Berman, Soheil Meshinchi, Todd Alonzo, and Sommer Castro and the Children's Oncology Group (COG) for their assistance with DS-AMKL specimens. Research with DS-AMKL samples was supported by the Chair's Grant U10 CA98543 (to COG) from the National Cancer Institute (NCI). The project has also been funded in part with Federal funds from the NCI's Initiative for Chemical Genetics under Contract N01-CO-12400. The content of this publication is solely the responsibility of the authors and does not necessarily reflect the views or policies of the Department of Health and Human Services, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government. A part of this work was performed by the Northwestern University ChemCore at the Center for Molecular Innovation and Drug Discovery (CMIDD), which is funded by the Chicago Biomedical Consortium with support from The Searle Funds at The Chicago Community Trust. D.G.G. is an employee and shareholder of Merck and Co., Inc. R.J.G. is an employee, shareholder, and board member of Epizyme, Inc. and a member of the SAB of the Michael J. Fox Foundation.
PY - 2012/8/3
Y1 - 2012/8/3
N2 - The mechanism by which cells decide to skip mitosis to become polyploid is largely undefined. Here we used a high-content image-based screen to identify small-molecule probes that induce polyploidization of megakaryocytic leukemia cells and serve as perturbagens to help understand this process. Our study implicates five networks of kinases that regulate the switch to polyploidy. Moreover, we find that dimethylfasudil (diMF, H-1152P) selectively increased polyploidization, mature cell-surface marker expression, and apoptosis of malignant megakaryocytes. An integrated target identification approach employing proteomic and shRNA screening revealed that a major target of diMF is Aurora kinase A (AURKA). We further find that MLN8237 (Alisertib), a selective inhibitor of AURKA, induced polyploidization and expression of mature megakaryocyte markers in acute megakaryocytic leukemia (AMKL) blasts and displayed potent anti-AMKL activity in vivo. Our findings provide a rationale to support clinical trials of MLN8237 and other inducers of polyploidization and differentiation in AMKL.
AB - The mechanism by which cells decide to skip mitosis to become polyploid is largely undefined. Here we used a high-content image-based screen to identify small-molecule probes that induce polyploidization of megakaryocytic leukemia cells and serve as perturbagens to help understand this process. Our study implicates five networks of kinases that regulate the switch to polyploidy. Moreover, we find that dimethylfasudil (diMF, H-1152P) selectively increased polyploidization, mature cell-surface marker expression, and apoptosis of malignant megakaryocytes. An integrated target identification approach employing proteomic and shRNA screening revealed that a major target of diMF is Aurora kinase A (AURKA). We further find that MLN8237 (Alisertib), a selective inhibitor of AURKA, induced polyploidization and expression of mature megakaryocyte markers in acute megakaryocytic leukemia (AMKL) blasts and displayed potent anti-AMKL activity in vivo. Our findings provide a rationale to support clinical trials of MLN8237 and other inducers of polyploidization and differentiation in AMKL.
UR - http://www.scopus.com/inward/record.url?scp=84864621502&partnerID=8YFLogxK
U2 - 10.1016/j.cell.2012.06.032
DO - 10.1016/j.cell.2012.06.032
M3 - Article
C2 - 22863010
AN - SCOPUS:84864621502
SN - 0092-8674
VL - 150
SP - 575
EP - 589
JO - Cell
JF - Cell
IS - 3
ER -