A Potent Blood-Brain Barrier-Permeable Mutant IDH1 Inhibitor Suppresses the Growth of Glioblastoma with IDH1 Mutation in a Patient-Derived Orthotopic Xenograft Model

Gliomas are the second most common primary brain tumors in adults. They are treated with combination therapies, including surgery, radiotherapy, and chemotherapy. There are currently limited treatment options for recurrent gliomas, and new targeted therapies need to be identified, especially in glio...

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Veröffentlicht in:Molecular cancer therapeutics 2020-02, Vol.19 (2), p.375-383
Hauptverfasser: Machida, Yukino, Nakagawa, Makoto, Matsunaga, Hironori, Yamaguchi, Masayuki, Ogawara, Yoko, Shima, Yutaka, Yamagata, Kazutsune, Katsumoto, Takuo, Hattori, Ayuna, Itoh, Masato, Seki, Takahiko, Nishiya, Yumi, Nakamura, Koichi, Suzuki, Kanae, Imaoka, Tomoki, Baba, Daichi, Suzuki, Makoto, Sampetrean, Oltea, Saya, Hideyuki, Ichimura, Koichi, Kitabayashi, Issay
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container_end_page 383
container_issue 2
container_start_page 375
container_title Molecular cancer therapeutics
container_volume 19
creator Machida, Yukino
Nakagawa, Makoto
Matsunaga, Hironori
Yamaguchi, Masayuki
Ogawara, Yoko
Shima, Yutaka
Yamagata, Kazutsune
Katsumoto, Takuo
Hattori, Ayuna
Itoh, Masato
Seki, Takahiko
Nishiya, Yumi
Nakamura, Koichi
Suzuki, Kanae
Imaoka, Tomoki
Baba, Daichi
Suzuki, Makoto
Sampetrean, Oltea
Saya, Hideyuki
Ichimura, Koichi
Kitabayashi, Issay
description Gliomas are the second most common primary brain tumors in adults. They are treated with combination therapies, including surgery, radiotherapy, and chemotherapy. There are currently limited treatment options for recurrent gliomas, and new targeted therapies need to be identified, especially in glioblastomas, which have poor prognosis. Isocitrate dehydrogenase (IDH) mutations are detected in various tumors, including gliomas. Most patients with IDH mutant glioma harbor the IDH1R132H subtype. Mutant IDH catalyzes the conversion of α-ketoglutarate to the oncometabolite 2-hydroxyglutarate (2-HG), which induces aberrant epigenetic status and contributes to malignant progression, and is therefore a potential therapeutic target for IDH mutant tumors. The present study describes a novel, orally bioavailable selective mutant IDH1 inhibitor, DS-1001b. The drug has high blood-brain barrier (BBB) permeability and inhibits IDH1R132H. Continuous administration of DS-1001b impaired tumor growth and decreased 2-HG levels in subcutaneous and intracranial xenograft models derived from a patient with glioblastoma with IDH1 mutation. Moreover, the expression of glial fibrillary acidic protein was strongly induced by DS-1001b, suggesting that inhibition of mutant IDH1 promotes glial differentiation. These results reveal the efficacy of BBB-permeable DS-1001b in orthotopic patient-derived xenograft models and provide a preclinical rationale for the clinical testing of DS-1001b in recurrent gliomas.
doi_str_mv 10.1158/1535-7163.MCT-18-1349
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subjects Administration, Oral
Animals
Blood-Brain Barrier - metabolism
Brain Neoplasms - drug therapy
Brain Neoplasms - enzymology
Brain Neoplasms - pathology
Enzyme Inhibitors - chemistry
Enzyme Inhibitors - pharmacokinetics
Enzyme Inhibitors - pharmacology
Glioblastoma - drug therapy
Glioblastoma - enzymology
Glioblastoma - pathology
Humans
Isocitrate Dehydrogenase - antagonists & inhibitors
Isocitrate Dehydrogenase - genetics
Isocitrate Dehydrogenase - metabolism
Isoxazoles - chemistry
Isoxazoles - pharmacokinetics
Isoxazoles - pharmacology
Male
Mice
Mice, Inbred NOD
Mice, SCID
Mutation
Random Allocation
Xenograft Model Antitumor Assays
title A Potent Blood-Brain Barrier-Permeable Mutant IDH1 Inhibitor Suppresses the Growth of Glioblastoma with IDH1 Mutation in a Patient-Derived Orthotopic Xenograft Model
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