Home HOME Neoplasma 2015 Neoplasma Vol.62, No.4, p.567-573, 2015

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Founded: 1954
ISSN 0028-2685
ISSN 1338-4317 (online)

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Neoplasma Vol.62, No.4, p.567-573, 2015

Title: Down-regulation of miR-205 promotes stemness of hepatocellular carcinoma cells by targeting PLCβ1 and increasing CD24 expression
Author: J. ZHAO, G. XU, Y. WANG, D. QIAN, Y. WANG, Y. X. LI


Hepatocellular carcinoma (HCC) is a particularly lethal form of cancer. Overall survival evenafter liver surgery is unsatisfactory due to high metastatic capacity and recurrence rates. Cancer stem cells (CSCs) were recently proposed to elucidate the molecular mechanism of HCC metastasis and recurrence. In our study, we found that down-regulation of miR-205 promoted stem cell inhibition of HCC.
Expression of miR-205 and PLCβ1 was investigated by qRT-PCR. MiR-205 and PLCΒ1 expression were associated with disease free survival(DFS) by log-rank test. Computational predicting software was used to predict potential targets of miR-205. MiR-205 and PLCΒ1 were transfected into cells to analyze the stem cell inhibition.

MiR-205 was significantly down-regulated and PLCβ1 dramatically up-regulated in tumors compared with matched tissues (P<0.0001).

High miR-205 and low PLCβ1 expression was found to be associated with better DFS. PLCβ1 was one of the potential targets of miR-205 and the dual luciferase report system demonstrated that PLCβ1 was a direct target of miR-205 in cells. When miR-205 and PLCβ1 were transfected into cells, we found that the number of spheres increased and the CD24+ subpopulation of HCC cells dramatically increased.
Down-regulation of miR-205 promotes stem cell inhibition of HCC by targeting PLCβ1 and increasing CD24 expression.

Keywords: miR-205, HCC, PLCΒ1, stem cell inhibition
Published online: 18-May-2015
Year: 2015, Volume: 62, Issue: 4 Page From: 567, Page To: 573

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