Scutellaria barbata *** Inhibits Colorectal Cancer Growth via Suppression of Wnt/β-Catenin Signaling Pathway

作     者：WEI Li-hui LIN Jiu-mao CHU Jian-feng CHEN Hong-wei LI Qing-yu PENG Jun 

作者机构：Academy of Integrative Traditional Chinese Medicine.MedicineFujian University of Fuzhou(350122)China Fujian Key Laboratory of Integrative Medicine on GeriatricsFujian University of Traditional Chinese MedicineFuzhou(350122)China 

出 版 物：《Chinese Journal of Integrative Medicine》 (中国结合医学杂志（英文版）)

年 卷 期：2017年第23卷第11期

页      面：858-863页

核心收录：

学科分类：1008[医学-中药学(可授医学、理学学位)] 1007[医学-药学(可授医学、理学学位)] 1006[医学-中西医结合] 1005[医学-中医学] 1002[医学-临床医学] 100602[医学-中西医结合临床] 10[医学] 

基　　金：Supported by the Natural Science Foundation of Fujian Province of China(No.2013J01333) the Youth Science Foundation of the Health Department of Fujian Province(2012-2-60) the Developmental Fund of Chen Keji Integrative Medicine(No.CKJ2015008) 

主　　题：Scutellaria barbata D.Don colorectal cancer proliferation Wnt/β catenin pathway 

摘      要：Objective： To investigate the effect of the ethanol extract of Scutellaria barbata D. Don（EESB） on colorectal cancer（CRC） growth and Wnt/β-catenin signaling pathway in vivo and in vitro. Methods： In vivoexperiment, CRC xenograft mouse model was constructed with injection of HT-29 cells. Following xenograft implantation, twenty mice were randomly divided into EESB-treated group（n=10） and control group（n=10） by a random number table, and were given with intra-gastric administration of 2 g/kg EESB or saline, 5 days a week for 16 days, respectively. At the end of experiment, tumors were removed and weighed by electronic scales. The proliferation biomarker Ki-67 of tumor was evaluated by immunohistochemistry（IHC） assay. In vitro study, HT-29 cells were treated with 0, 0.5, 1.5, 2.5 mg/m L EESB for 24 h. At the end of the treatment, the viability and survival of HT-29 cells were determined by methylthiazolyldiphenyl-tetrazolium bromide（MTT） assay and colony formation assay, respectively. The m RNA expression of c-Myc, Survivin and adenomatous polyposis coli（APC） was examined by reverse transcription-polymerase chain reaction（RT-PCR） both in tumor tissues of CRC xenograft mice and HT-29 cells. Protein expression of c-Myc, Survivin, APC, and β-catenin as well as β-catenin phosphorylation level were evaluated by IHC assay or Western blotting. Results： EESB significantly reduced tumor weight in CRC xenografts mice, compared with the control group（P〈0.05）. IHC assay showed that EESB significantly inhibited protein expression of Ki-67 in tumor tissues（P〈0.05）. MTT assay showed that EESB significantly reduced HT-29 cell viability in a dose-dependent manner（P〈0.05）. Colony formation assay showed that EESB dose-dependently decreased the survival of HT-29 cells（P〈0.05）. In addition, RT-PCR assay showed that EESB decreased the m RNA expression of c-Myc and Survivin and increased APC expression, both in tumor tissues of CRC xenograft mice and HT-29 cells（P〈0.05）. IHC assay or Western