Protein Kinase Cι and Wnt/ß-Catenin Signaling: Alternative Pathways to Kras/Trp53-Driven Lung Adenocarcinoma.
Cancer Cell
; 36(2): 156-167.e7, 2019 08 12.
Article
en En
| MEDLINE
| ID: mdl-31378680
ABSTRACT
We report that mouse LSL-KrasG12D;Trp53fl/fl (KP)-mediated lung adenocarcinoma (LADC) tumorigenesis can proceed through both PKCι-dependent and PKCι-independent pathways. The predominant pathway involves PKCι-dependent transformation of bronchoalveolar stem cells (BASCs). However, KP mice harboring conditional knock out Prkci alleles (KPI mice) develop LADC tumors through PKCι-independent transformation of Axin2+ alveolar type 2 (AT2) stem cells. Transformed growth of KPI, but not KP, tumors is blocked by Wnt pathway inhibition in vitro and in vivo. Furthermore, a KPI-derived genomic signature predicts sensitivity of human LADC cells to Wnt inhibition, and identifies a distinct subset of primary LADC tumors exhibiting a KPI-like genotype. Thus, LADC can develop through both PKCι-dependent and PKCι-independent pathways, resulting in tumors exhibiting distinct oncogenic signaling and pharmacologic vulnerabilities.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Proteína Quinasa C
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Transformación Celular Neoplásica
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Proteína p53 Supresora de Tumor
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Genes ras
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Vía de Señalización Wnt
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Adenocarcinoma del Pulmón
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Isoenzimas
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Neoplasias Pulmonares
Idioma:
En
Revista:
Cancer Cell
Asunto de la revista:
NEOPLASIAS
Año:
2019
Tipo del documento:
Article
País de afiliación:
Estados Unidos