Novel selective TOPK inhibitor SKLB-C05 inhibits colorectal carcinoma growth and metastasis.
Cancer Lett
; 445: 11-23, 2019 03 31.
Article
en En
| MEDLINE
| ID: mdl-30590102
ABSTRACT
The mitogen-activated protein kinase (MAPK) signaling pathway member T-LAK cell-originated protein kinase/PDZ-binding kinase (TOPK/PBK) is closely involved in tumorigenesis and progression. Its overexpression in colorectal carcinoma (CRC) exacerbates tumor malignancy, promotes metastasis and results in dismal prognosis. Therefore, targeting TOPK is a promising approach for CRC therapy. Here, we report the development of a TOPK selective inhibitor SKLB-C05, with subnanomolar inhibitory potency. In vitro, SKLB-C05 exhibited excellent cytotoxicity and anti-migration and invasion activity on TOPK high-expressing CRC cells and induced cell apoptosis. These activities could attribute to its inhibition of TOPK downstream signaling including extracellular signal-regulated kinase 1/2 (ERK1/2), p38, and c-Jun N-terminal kinase 1, 2, and 3 (JNK1/2/3), as well as downregulation of FAK/Src- MMP signaling. Furthermore, SKLB-C05 disrupted cell mitosis and blocked CRC cell cycle. In vivo, oral administration of SKLB-C05 at concentrations of 20 and 10â¯mgâ¯kg-1·day-1 dramatically attenuated CRC tumor xenograft growth and completely suppressed hepatic metastasis of HCT116â¯cells, respectively. Thus, these findings suggest that SKLB-C05 is a specific TOPK inhibitor with potent anti-CRC oncogenic activity in vitro and in vivo.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias Colorrectales
/
Quinasas de Proteína Quinasa Activadas por Mitógenos
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Inhibidores de Proteínas Quinasas
/
Neoplasias Pulmonares
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Cancer Lett
Año:
2019
Tipo del documento:
Article
País de afiliación:
China