Targeting Non-proteolytic Protein Ubiquitination for the Treatment of Diffuse Large B Cell Lymphoma.
Cancer Cell
; 29(4): 494-507, 2016 Apr 11.
Article
en En
| MEDLINE
| ID: mdl-27070702
ABSTRACT
Chronic active B cell receptor (BCR) signaling, a hallmark of the activated B cell-like (ABC) subtype of diffuse large B cell lymphoma (DLBCL), engages the CARD11-MALT1-BCL10 (CBM) adapter complex to activate IκB kinase (IKK) and the classical NF-κB pathway. Here we show that the CBM complex includes the E3 ubiquitin ligases cIAP1 and cIAP2, which are essential mediators of BCR-dependent NF-κB activity in ABC DLBCL. cIAP1/2 attach K63-linked polyubiquitin chains on themselves and on BCL10, resulting in the recruitment of IKK and the linear ubiquitin chain ligase LUBAC, which is essential for IKK activation. SMAC mimetics target cIAP1/2 for destruction, and consequently suppress NF-κB and selectively kill BCR-dependent ABC DLBCL lines, supporting their clinical evaluation in patients with ABC DLBCL.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Triazoles
/
Linfocitos B
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Procesamiento Proteico-Postraduccional
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Linfoma de Células B Grandes Difuso
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Compuestos Bicíclicos Heterocíclicos con Puentes
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Ubiquitina-Proteína Ligasas
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Proteínas Adaptadoras Transductoras de Señales
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Dipéptidos
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Proteínas Inhibidoras de la Apoptosis
/
Indoles
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Cancer Cell
Asunto de la revista:
NEOPLASIAS
Año:
2016
Tipo del documento:
Article
País de afiliación:
Estados Unidos