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AIM To investigate the potential role of micro RNA-30 a(mi R-30 a) in esophageal squamous cell carcinoma(ESCC).METHODS Expression of mi R-30 a-3 p/5 p was analyzed using microarray data and fresh ESCC tissue samples. Both in vitro and in vivo assays were used to investigate the effects of mi R-30 a-3 p/5 p on ESCC cell proliferation. Furthermore,Kyoto Encyclopedia of Genes and Genomes analysis was performed to explore underlying mechanisms involved in ESCC,and then,assays were carried out to verify the potential molecular mechanism of mi R-30 a in ESCC.RESULTS Low expression of mi R-30 a-3 p/5 p was closely associated with advanced ESCC progression and poor prognosis of patients with ESCC. Knock-down of mi R-30 a-3 p/5 p promoted ESCC cell proliferation. Increased mi R-30 a-3 p/5 p expression inhibited the Wnt signaling pathway by targeting Wnt2 and Fzd2.CONCLUSION Down-regulation of mi R-30 a-3 p/5 p promotes ESCC cell proliferation by activating the Wnt signaling pathway through inhibition of Wnt2 and Fzd2.
AIM To investigate the potential role of micro RNA-30 a (mi R-30 a) in esophageal squamous cell carcinoma (ESCC). METHODS Expression of mi R-30 a-3 p / 5 p was analyzed using microarray data and fresh ESCC Both in vitro and in vivo assays were used to investigate the effects of mi R-30 a-3 p / 5 p on ESCC cell proliferation. Furthermore, Kyoto Encyclopedia of Genes and Genomes analysis was performed to explore underlying mechanisms involved in ESCC, and then, assays were carried out to verify the potential of the molecular mechanism of mi R-30 a in ESCC. RESULTS Low expression of mi R-30 a-3 p / 5 p was closely associated with advanced ESCC progression and poor prognosis of Patients with ESCC. Knock-down of mi R-30 a-3 p / 5 p promoted ESCC cell proliferation. Increased mi R-30 a-3 p / 5 p expression inhibited the Wnt signaling pathway by targeting Wnt2 and Fzd2.CONCLUSION Down -regulation of mi R-30 a-3 p / 5 p promotes ESCC cell proliferation by activating the Wnt signaling pathway through inhi bition of Wnt2 and Fzd2.