NOTCH信號通路促進結直腸癌轉移
作者:
小柯機器人發布時間:2019/9/17 12:29:42
英國格拉斯哥大學Owen J. Sansom研究團隊上皮中的NOTCH信號重塑結直腸癌(CRC)的腫瘤微環境,以驅動預後差的亞型產生與腫瘤轉移。2019年9月16日出版的《癌細胞》發表了這一成果。
研究人員發現在小鼠腸上皮中激活NOTCH1信號通路導致KrasG12D驅動的腫瘤發生產生中高度滲透性轉移(100%轉移;超過80%肝轉移)。轉錄分析顯示上皮NOTCH1信號產生腫瘤微環境(TME),這讓研究人員聯想到預後不良的人類CRC亞型(CMS4和CRIS-B),並通過轉化生長因子(TGF)β依賴性中性粒細胞招募來驅動轉移。重要的是,用臨床相關治療劑抑制這種招募可以阻止轉移。 研究人員認為NOTCH1信號是CRC進展的關鍵,應該在臨床上加以利用。
研究人員介紹,CRC的轉移過程尚不完全清楚,並且缺乏有效的治療方法。
附:英文原文
Title: Epithelial NOTCH Signaling Rewires the Tumor Microenvironment of Colorectal Cancer to Drive Poor-Prognosis Subtypes and Metastasis
Author: Rene Jackstadt, Sander R. van Hooff, Joshua D. Leach, Xabier Cortes-Lavaud, Jeroen O. Lohuis, Rachel A. Ridgway, Valérie M. Wouters, Jatin Roper, Timothy J. Kendall, Campbell S. Roxburgh, Paul G. Horgan, Colin Nixon, Craig Nourse, Matthias Gunzer, William Clark, Ann Hedley, Omer H. Yilmaz, Mamunur Rashid, Peter Bailey, Andrew V. Biankin, Andrew D. Campbell, David J. Adams, Simon T. Barry, Colin W. Steele, Jan Paul Medema, Owen J. Sansom
Issue&Volume: Volume 36 Issue 3
Summary:
The metastatic process of colorectal cancer (CRC) is not fully understood and effective therapies are lacking. We show that activation of NOTCH1 signaling in the murine intestinal epithelium leads to highly penetrant metastasis (100% metastasis; with >80% liver metastases) in KrasG12D-driven serrated cancer. Transcriptional profiling reveals that epithelial NOTCH1 signaling creates a tumor microenvironment (TME) reminiscent of poorly prognostic human CRC subtypes (CMS4 and CRIS-B), and drives metastasis through transforming growth factor (TGF) β-dependent neutrophil recruitment. Importantly, inhibition of this recruitment with clinically relevant therapeutic agents blocks metastasis. We propose that NOTCH1 signaling is key to CRC progression and should be exploited clinically.
DOI: 10.1016/j.ccell.2019.08.003
Source: https://www.cell.com/cancer-cell/fulltext/S1535-6108(19)30371-X