Antitumor activity of the investigational proteasome inhibitor MLN9708 in mouse models of B-cell and plasma cell malignancies.
Abstract | PURPOSE: EXPERIMENTAL DESIGN: Both cell line-derived OCI-Ly10 and primary human lymphoma-derived PHTX22L xenograft models of diffuse large B-cell lymphoma were used to evaluate the pharmacodynamics and antitumor effects of MLN2238 and bortezomib. The iMyc(Cα)/Bcl-X(L) GEM model was used to assess their effects on de novo PCM and overall survival. The newly developed DP54-Luc-disseminated model of iMyc(Cα)/Bcl-X(L) was used to determine antitumor activity and effects on osteolytic bone disease. RESULTS:
MLN2238 has an improved pharmacodynamic profile and antitumor activity compared with bortezomib in both OCI-Ly10 and PHTX22L models. Although both MLN2238 and bortezomib prolonged overall survival, reduced splenomegaly, and attenuated IgG2a levels in the iMyc(Cα)/Bcl-X(L) GEM model, only MLN2238 alleviated osteolytic bone disease in the DP54-Luc model. CONCLUSIONS: Our results clearly showed the antitumor activity of MLN2238 in a variety of mouse models of B-cell lymphoma and PCM, supporting its clinical development. MLN9708 is being evaluated in multiple phase I and I/II trials.
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Authors | Edmund C Lee, Michael Fitzgerald, Bret Bannerman, Jill Donelan, Kristen Bano, Jennifer Terkelsen, Daniel P Bradley, Ozlem Subakan, Matthew D Silva, Ray Liu, Michael Pickard, Zhi Li, Olga Tayber, Ping Li, Paul Hales, Mary Carsillo, Vishala T Neppalli, Allison J Berger, Erik Kupperman, Mark Manfredi, Joseph B Bolen, Brian Van Ness, Siegfried Janz |
Journal | Clinical cancer research : an official journal of the American Association for Cancer Research
(Clin Cancer Res)
Vol. 17
Issue 23
Pg. 7313-23
(Dec 01 2011)
ISSN: 1557-3265 [Electronic] United States |
PMID | 21903769
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
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Copyright | ©2011 AACR. |
Chemical References |
- Antineoplastic Agents
- Boron Compounds
- Boronic Acids
- Protease Inhibitors
- Proteasome Inhibitors
- Pyrazines
- Bortezomib
- ixazomib
- Glycine
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Topics |
- Animals
- Antineoplastic Agents
(pharmacokinetics, pharmacology)
- Boron Compounds
(administration & dosage, pharmacokinetics, pharmacology)
- Boronic Acids
(pharmacokinetics, pharmacology)
- Bortezomib
- Cell Line, Tumor
- Glycine
(administration & dosage, analogs & derivatives, pharmacokinetics, pharmacology)
- Humans
- Lymphoma, B-Cell
(drug therapy, metabolism)
- Mice
- Mice, Inbred C57BL
- Mice, Inbred NOD
- Mice, SCID
- Mice, Transgenic
- Neoplasms, Plasma Cell
(drug therapy, metabolism)
- Osteolysis
(drug therapy, etiology)
- Protease Inhibitors
(pharmacology)
- Proteasome Inhibitors
- Pyrazines
(pharmacokinetics, pharmacology)
- Xenograft Model Antitumor Assays
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