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Erschienen in: Investigational New Drugs 4/2019

08.09.2018 | PRECLINICAL STUDIES

CDKI-73: an orally bioavailable and highly efficacious CDK9 inhibitor against acute myeloid leukemia

verfasst von: Muhammed H. Rahaman, Yingyi Yu, Longjin Zhong, Julian Adams, Frankie Lam, Peng Li, Ben Noll, Robert Milne, Jun Peng, Shudong Wang

Erschienen in: Investigational New Drugs | Ausgabe 4/2019

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Summary

Acute myeloid leukemia (AML) is the most common form of acute leukemia with dismal long-term prognosis with age. The most aggressive subtype of AML is MLL-AML that is characterized by translocations of the mixed-lineage leukemia gene (MLL) and resistance to conventional chemotherapy. Cyclin dependent kinase 9 (CDK9) plays a crucial role in the MLL-driven oncogenic transcription, and hence, inhibiting activity of CDK9 has been proposed as a promising strategy for treatment of AML. We investigated the therapeutic potential of CDKI-73, one of the most potent CDK9 inhibitors, against a panel of AML cell lines and samples derived from 97 patients. CDKI-73 induced cancer cells undergoing apoptosis through transcriptional downregulation of anti-apoptotic proteins Bcl-2, Mcl-1 and XIAP by majorly targeting CDK9. Contrastively, it was relatively low toxic to the bone marrow cells of healthy donors. In MV4–11 xenograft mouse models, oral administration of CDKI-73 resulted in a marked inhibition of tumor growth (p < 0.0001) and prolongation of animal life span (P < 0.001) without causing body weight loss and other overt toxicities. The study suggests that CDKI-73 can be developed as a highly efficacious and orally deliverable therapeutic agent for treatment of AML.
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Metadaten
Titel
CDKI-73: an orally bioavailable and highly efficacious CDK9 inhibitor against acute myeloid leukemia
verfasst von
Muhammed H. Rahaman
Yingyi Yu
Longjin Zhong
Julian Adams
Frankie Lam
Peng Li
Ben Noll
Robert Milne
Jun Peng
Shudong Wang
Publikationsdatum
08.09.2018
Verlag
Springer US
Erschienen in
Investigational New Drugs / Ausgabe 4/2019
Print ISSN: 0167-6997
Elektronische ISSN: 1573-0646
DOI
https://doi.org/10.1007/s10637-018-0661-2

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