Yang XJ. Liver cancer stem cells and new strategies for targeted therapy of hepatocellular carcinoma.
Shijie Huaren Xiaohua Zazhi 2016;
24:3337-3346. [DOI:
10.11569/wcjd.v24.i22.3337]
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Abstract
Over the past ten years, increasing studies show that liver cancer stem cells (LCSCs) are responsible not only for hepatocellular carcinoma (HCC) initiation and development but also for the generation of distant metastasis and relapse after therapy. Therefore, further research for LCSCs is considered a new avenue to explore the cause of HCC invasion and metastasis in order to formulate prevention and control strategies. Current traditional cancer therapies including chemotherapy and radiotherapy which primarily target rapidly dividing and most likely well differentiated tumor cells, would fail to eliminate LCSCs. After surgical removal of HCC mass, the remaining LCSCs still have the ability to differentiate, proliferate and even migrate to other places to form metastatic tumors. Therefore, to explore various kinds of targeted therapies for LCSCs is the only way to break through the "bottleneck" of HCC treatment. Strategies for targeted therapy of HCC include inhibiting LCSCs proliferation, inducing apoptosis and differentiation, increasing chemotherapy sensitivity and disrupting the tumor niche essential for CSC homeostasis.
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