Mitochondrial Reprogramming Underlies Resistance to BCL-2 Inhibition in Lymphoid Malignancies.
Cancer Cell
; 36(4): 369-384.e13, 2019 10 14.
Article
em En
| MEDLINE
| ID: mdl-31543463
ABSTRACT
Mitochondrial apoptosis can be effectively targeted in lymphoid malignancies with the FDA-approved B cell lymphoma 2 (BCL-2) inhibitor venetoclax, but resistance to this agent is emerging. We show that venetoclax resistance in chronic lymphocytic leukemia is associated with complex clonal shifts. To identify determinants of resistance, we conducted parallel genome-scale screens of the BCL-2-driven OCI-Ly1 lymphoma cell line after venetoclax exposure along with integrated expression profiling and functional characterization of drug-resistant and engineered cell lines. We identified regulators of lymphoid transcription and cellular energy metabolism as drivers of venetoclax resistance in addition to the known involvement by BCL-2 family members, which were confirmed in patient samples. Our data support the implementation of combinatorial therapy with metabolic modulators to address venetoclax resistance.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sulfonamidas
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Leucemia Linfocítica Crônica de Células B
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Protocolos de Quimioterapia Combinada Antineoplásica
/
Compostos Bicíclicos Heterocíclicos com Pontes
/
Proteínas Proto-Oncogênicas c-bcl-2
/
Mitocôndrias
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Aged
/
Aged80
/
Animals
/
Female
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Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Cancer Cell
Assunto da revista:
NEOPLASIAS
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
França