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Yokosuka T, Ito M, Yoshino Y, Hirose A, Nakamura W, Sakurai Y, Hayashi A, Fujita S, Miyagawa N, Keino D, Iwasaki F, Hamanoue S, Yanagimachi M, Goto S, Nagai JI, Ueno H, Takita J, Tanaka Y, Taga T, Goto H. Using the in vitro drug sensitivity test to identify candidate treatments for transient abnormal myelopoiesis. Br J Haematol 2021; 196:764-768. [PMID: 34816427 DOI: 10.1111/bjh.17970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 11/10/2021] [Indexed: 11/26/2022]
Abstract
Approximately 20% of patients with transient abnormal myelopoiesis (TAM) die due to hepatic or multiorgan failure. To identify potential new treatments for TAM, we performed in vitro drug sensitivity testing (DST) using the peripheral blood samples of eight patients with TAM. DST screened 41 agents for cytotoxic properties against TAM blasts. Compared with the reference samples of healthy subjects, TAM blasts were more sensitive to glucocorticoids, the mitogen-activated protein kinase kinase (MAP2K) inhibitor trametinib, and cytarabine. Our present results support the therapeutic potential of glucocorticoids and the role of the RAS/MAP2K signalling pathway in TAM pathogenesis.
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Affiliation(s)
- Tomoko Yokosuka
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Mieko Ito
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Yuki Yoshino
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Ayana Hirose
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Wataru Nakamura
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Yukari Sakurai
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Akiko Hayashi
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Sachio Fujita
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Naoyuki Miyagawa
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Fuminori Iwasaki
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Satoshi Hamanoue
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Masakatsu Yanagimachi
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Shoko Goto
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Jun-Ichi Nagai
- Department of Laboratory Medicine, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Hiroo Ueno
- Department of Pediatrics, Kyoto University Hospital, Kyoto, Japan
| | - Junko Takita
- Department of Pediatrics, Kyoto University Hospital, Kyoto, Japan
| | - Yukichi Tanaka
- Department of Pathology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Takashi Taga
- Department of Pediatrics, Shiga University of Medical Science, Otsu, Japan
| | - Hiroaki Goto
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
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