The Imipridone ONC213 Targets α-Ketoglutarate Dehydrogenase to Induce Mitochondrial Stress and Suppress Oxidative Phosphorylation in Acute Myeloid Leukemia

©2024 American Association for Cancer Research..

Eradication of acute myeloid leukemia (AML) is therapeutically challenging; many patients succumb to AML despite initially responding to conventional treatments. Here, we showed that the imipridone ONC213 elicits potent antileukemia activity in a subset of AML cell lines and primary patient samples, particularly in leukemia stem cells, while producing negligible toxicity in normal hematopoietic cells. ONC213 suppressed mitochondrial respiration and elevated α-ketoglutarate by suppressing α-ketoglutarate dehydrogenase (αKGDH) activity. Deletion of OGDH, which encodes αKGDH, suppressed AML fitness and impaired oxidative phosphorylation, highlighting the key role for αKGDH inhibition in ONC213-induced death. ONC213 treatment induced a unique mitochondrial stress response and suppressed de novo protein synthesis in AML cells. Additionally, ONC213 reduced the translation of MCL1, which contributed to ONC213-induced apoptosis. Importantly, a patient-derived xenograft from a relapsed AML patient was sensitive to ONC213 in vivo. Collectively, these findings support further development of ONC213 for treating AML.

SIGNIFICANCE: In AML cells, ONC213 suppresses αKGDH, which induces a unique mitochondrial stress response, and reduces MCL1 to decrease oxidative phosphorylation and elicit potent antileukemia activity. See related commentary by Boët and Sarry, p. 950.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:84

Enthalten in:

Cancer research - 84(2024), 7 vom: 01. Apr., Seite 1084-1100

Sprache:

Englisch

Beteiligte Personen:

Su, Yongwei [VerfasserIn]
Carter, Jenna L [VerfasserIn]
Li, Xinyu [VerfasserIn]
Fukuda, Yu [VerfasserIn]
Gray, Ashley [VerfasserIn]
Lynch, John [VerfasserIn]
Edwards, Holly [VerfasserIn]
Ma, Jun [VerfasserIn]
Schreiner, Patrick [VerfasserIn]
Polin, Lisa [VerfasserIn]
Kushner, Juiwanna [VerfasserIn]
Dzinic, Sijana H [VerfasserIn]
Buck, Steven A [VerfasserIn]
Pruett-Miller, Shondra M [VerfasserIn]
Hege-Hurrish, Katie [VerfasserIn]
Robinson, Camenzind [VerfasserIn]
Qiao, Xinan [VerfasserIn]
Liu, Shuang [VerfasserIn]
Wu, Shuangshuang [VerfasserIn]
Wang, Guan [VerfasserIn]
Li, Jing [VerfasserIn]
Allen, Joshua E [VerfasserIn]
Prabhu, Varun V [VerfasserIn]
Schimmer, Aaron D [VerfasserIn]
Joshi, Dhananjay [VerfasserIn]
Kalhor-Monfared, Shiva [VerfasserIn]
Watson, Iain D G [VerfasserIn]
Marcellus, Richard [VerfasserIn]
Isaac, Methvin B [VerfasserIn]
Al-Awar, Rima [VerfasserIn]
Taub, Jeffrey W [VerfasserIn]
Lin, Hai [VerfasserIn]
Schuetz, John D [VerfasserIn]
Ge, Yubin [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Myeloid Cell Leukemia Sequence 1 Protein

Anmerkungen:

Date Completed 03.04.2024

Date Revised 10.04.2024

published: Print

Citation Status MEDLINE

doi:

10.1158/0008-5472.CAN-23-2659

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367565269