期刊
JOURNAL OF INVESTIGATIVE DERMATOLOGY
卷 135, 期 10, 页码 2475-2483出版社
ELSEVIER SCIENCE INC
DOI: 10.1038/jid.2015.198
关键词
-
类别
资金
- VA [1I01BX001008-01A1, 548615] Funding Source: Federal RePORTER
- NCI NIH HHS [K08 CA155035, R01CA176748, K08CA155035, R01 CA176748] Funding Source: Medline
- NIAMS NIH HHS [R01AR059130, R01 AR059130] Funding Source: Medline
- NIEHS NIH HHS [T32 ES007015, T32 ES007015-35] Funding Source: Medline
- BLRD VA [I01 BX001008] Funding Source: Medline
About one-third of cancers harbor activating mutations in rat sarcoma viral oncogene homolog (RAS) oncogenes. In melanoma, aberrant neuroblastoma-RAS (NRAS) signaling fuels tumor progression in about 20% of patients. Current therapeutics for NRAS-driven malignancies barely affect overall survival. To date, pathway interference downstream of mutant NRAS seems to be the most promising approach. In this study, data revealed that mutant NRAS induced Polo-like kinase 1 (Plk1) expression, and pharmacologic inhibition of Plk1 stabilized the size of NRAS mutant melanoma xenografts. The combination of mitogen-activated protein kinase/extracellular signal-regulated kinase kinase (MEK) and Plk1 inhibitors resulted in a significant growth reduction of NRAS mutant melanoma cells in vitro, and regression of xenografted NRAS mutant melanoma in vivo. Independent cell cycle arrest and increased induction of apoptosis underlies the synergistic effect of this combination. Data further suggest that the p53 signaling pathway is of key importance to the observed therapeutic efficacy. This study provides in vitro, in vivo, and first mechanistic data that an MEK/Plk1 inhibitor combination might be a promising treatment approach for patients with NRAS-driven melanoma. As mutant NRAS signaling is similar across different malignancies, this inhibitor combination could also offer a previously unreported treatment modality for NRAS mutant tumors of other cell origins.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据