Dasatinib Is an Effective Treatment for Angioimmunoblastic T-cell Lymphoma

©2020 American Association for Cancer Research..

Recurrent hotspot (p.Gly17Val) mutations in RHOA encoding a small GTPase, together with loss-of-function mutations in TET2 encoding an epigenetic regulator, are genetic hallmarks of angioimmunoblastic T-cell lymphoma (AITL). Mice expressing the p.Gly17Val RHOA mutant on a Tet2-null background succumbed to AITL-like T-cell lymphomas due to deregulated T-cell receptor (TCR) signaling. Using these mice to investigate therapeutics for AITL, we found that dasatinib, a multikinase inhibitor prolonged their survival through inhibition of hyperactivated TCR signaling. A phase I clinical trial study of dasatinib monotherapy in 5 patients with relapsed/refractory AITL was performed. Dasatinib was started at a dose of 100 mg/body once a day and continued until days 10-78 (median day 58). All the evaluable patients achieved partial responses. Our findings suggest that AITL is highly dependent on TCR signaling and that dasatinib could be a promising candidate drug for AITL treatment. SIGNIFICANCE: Deregulated T-cell receptor signaling is a critical molecular event in angioimmunoblastic T-cell lymphoma and can be targeted with dasatinib.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:80

Enthalten in:

Cancer research - 80(2020), 9 vom: 01. Mai, Seite 1875-1884

Sprache:

Englisch

Beteiligte Personen:

Nguyen, Tran B [VerfasserIn]
Sakata-Yanagimoto, Mamiko [VerfasserIn]
Fujisawa, Manabu [VerfasserIn]
Nuhat, Sharna Tanzima [VerfasserIn]
Miyoshi, Hiroaki [VerfasserIn]
Nannya, Yasuhito [VerfasserIn]
Hashimoto, Koichi [VerfasserIn]
Fukumoto, Kota [VerfasserIn]
Bernard, Olivier A [VerfasserIn]
Kiyoki, Yusuke [VerfasserIn]
Ishitsuka, Kantaro [VerfasserIn]
Momose, Haruka [VerfasserIn]
Sukegawa, Shinichiro [VerfasserIn]
Shinagawa, Atsushi [VerfasserIn]
Suyama, Takuya [VerfasserIn]
Sato, Yuji [VerfasserIn]
Nishikii, Hidekazu [VerfasserIn]
Obara, Naoshi [VerfasserIn]
Kusakabe, Manabu [VerfasserIn]
Yanagimoto, Shintaro [VerfasserIn]
Ogawa, Seishi [VerfasserIn]
Ohshima, Koichi [VerfasserIn]
Chiba, Shigeru [VerfasserIn]

Links:

Volltext

Themen:

82115-62-6
Antineoplastic Agents
Clinical Trial, Phase I
DNA-Binding Proteins
Dasatinib
Dioxygenases
EC 1.13.11.-
EC 3.6.5.2
Interferon-gamma
Interleukins
Journal Article
Proto-Oncogene Proteins
Proto-Oncogene Proteins c-vav
RBZ1571X5H
Receptors, Antigen, T-Cell
Research Support, Non-U.S. Gov't
RhoA GTP-Binding Protein
TET2 protein, human
Tet2 protein, mouse
Tumor Necrosis Factor-alpha
VAV1 protein, human

Anmerkungen:

Date Completed 15.10.2020

Date Revised 04.12.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1158/0008-5472.CAN-19-2787

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM30699495X