Tumor-specific HSP90 inhibition as a therapeutic approach in JAK-mutant acute lymphoblastic leukemias

Author:

Kucine Nicole12,Marubayashi Sachie1,Bhagwat Neha13,Papalexi Efthymia1,Koppikar Priya1,Sanchez Martin Marta4,Dong Lauren1,Tallman Marty S.5,Paietta Elisabeth6,Wang Kai7,He Jie7,Lipson Doron7,Stephens Phil7,Miller Vince7,Rowe Jacob M.8,Teruya-Feldstein Julie9,Mullighan Charles G.10,Ferrando Adolfo A.4,Krivtsov Andrei1112,Armstrong Scott1112,Leung Laura1,Ochiana Stefan O.13,Chiosis Gabriela13,Levine Ross L.1512,Kleppe Maria1

Affiliation:

1. Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY;

2. Department of Pediatrics, Division of Hematology/Oncology, Weill Cornell Medical College, New York, NY;

3. Gerstner Sloan Kettering Graduate School in Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY;

4. Institute for Cancer Genetics, Columbia University, New York, NY;

5. Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, NY;

6. Division of Hemato-Oncology, Department of Medicine (Oncology), Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY;

7. Foundation Medicine, Cambridge, MA;

8. Department of Hematology and Bone Marrow Transplantation, The Rambam Medical Center, Haifa, Israel;

9. Department of Pathology, Icahn School of Medicine, Mount Sinai, New York, NY;

10. Department of Pathology and Hematological Malignancies Program, St. Jude Children’s Research Hospital, Memphis, TN; and

11. Cancer Biology and Genetics Program,

12. Center for Epigenetics Research, and

13. Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY

Abstract

Key Points PU-H71, a novel purine scaffold inhibitor, shows potent therapeutic efficacy in JAK-mutant ALL cells and mouse models. HSP90 inhibition retains therapeutic efficacy in ruxolitinib-persistent JAK-mutant ALL cells.

Publisher

American Society of Hematology

Subject

Cell Biology,Hematology,Immunology,Biochemistry

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