PLCG1 is required for AML1-ETO leukemia stem cell self-renewal.
Blood
; 139(7): 1080-1097, 2022 02 17.
Article
en En
| MEDLINE
| ID: mdl-34695195
In an effort to identify novel drugs targeting fusion-oncogene-induced acute myeloid leukemia (AML), we performed high-resolution proteomic analysis. In AML1-ETO (AE)-driven AML, we uncovered a deregulation of phospholipase C (PLC) signaling. We identified PLCgamma 1 (PLCG1) as a specific target of the AE fusion protein that is induced after AE binding to intergenic regulatory DNA elements. Genetic inactivation of PLCG1 in murine and human AML inhibited AML1-ETO dependent self-renewal programs, leukemic proliferation, and leukemia maintenance in vivo. In contrast, PLCG1 was dispensable for normal hematopoietic stem and progenitor cell function. These findings are extended to and confirmed by pharmacologic perturbation of Ca++-signaling in AML1-ETO AML cells, indicating that the PLCG1 pathway poses an important therapeutic target for AML1-ETO+ leukemic stem cells.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Células Madre Neoplásicas
/
Células Madre Hematopoyéticas
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Leucemia Mieloide Aguda
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Regulación Leucémica de la Expresión Génica
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Proteínas de Fusión Oncogénica
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Fosfolipasa C gamma
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Subunidad alfa 2 del Factor de Unión al Sitio Principal
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Proteína 1 Compañera de Translocación de RUNX1
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Blood
Año:
2022
Tipo del documento:
Article
País de afiliación:
Alemania