2.Effect of ethyl gallate on invasion abilities and its mechanism of breast cancer MDA-MB-231 cells.
Hong-xia CUI ; Ming WANG ; Jia-xin YUAN ; Ji-cheng LIU
Acta Pharmaceutica Sinica 2015;50(1):45-49
This study is to investigate the effect of ethyl gallate on invasion capabilities and its mechanism of breast cancer MDA-MB-231 cells. Using cell adhesion and transwell assay, separately, the effects of ethyl gallate on the invasion of MDA-MB-231 cells were measured. The Akt-NF-κB signal pathway protein expressions were analyzed with Western blot. Also, the mRNA levels of MMP-9 and MMP-2 were analyzed by RT-PCR. Ethyl gallate inhibited the abilities of motility, adhesion and invasion of breast cancer MDA-MB-231 cells in vitro (P<0.05), inhibited the mRNA levels of MMP-9, MMP-2, phosphorylation of AKt and protein expression of NF-κB. It is concluded that ethyl gallate can inhibit the abilities of invasion of breast cancer in vitro by inhibiting the mRNA levels of MMP-9/MMP-2, phosphorylation of Akt and protein expression of NF-κB.
Breast Neoplasms
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pathology
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Cell Adhesion
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drug effects
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Cell Line, Tumor
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Cell Movement
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drug effects
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Gallic Acid
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analogs & derivatives
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pharmacology
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Humans
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Matrix Metalloproteinase 2
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metabolism
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Matrix Metalloproteinase 9
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metabolism
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NF-kappa B
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metabolism
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Phosphorylation
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Proto-Oncogene Proteins c-akt
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metabolism
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RNA, Messenger
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Signal Transduction
3.Study on relationship between Arg778Leu/Gln gene mutation spot in ATP7B and TCM syndrome type in Chinese patients with Wilson disease.
Bin YANG ; Ji-yuan HU ; Ming-fan HONG
Chinese Journal of Integrated Traditional and Western Medicine 2002;22(4):280-282
OBJECTIVETo investigate the relationship between Arg778Leu/Gln gene mutation spot in ATP7B and TCM Syndrome type in Chinese patients with Wilson disease (WD).
METHODSExon 8 of ATP7B of 90 WD patients and 30 healthy controls were amplified by PCR and analysed by restriction enzyme Msp I, the TCM Syndrome type of the patients was differentiated at the same time.
RESULTSIn the 90 WD patients, 34 with Arg778Leu/Gln of exon 8 were detected, among them 20 cases belonged to the TCM Syndrome type of endogenous Liver-Wind agitation.
CONCLUSIONOnset age of WD patients with Arg778Leu/Gln mutation is later than that without this mutation. Arg778Leu/Gln mutation might be related to the TCM Syndrome type of endogenous Liver-Wind agitation.
Adenosine Triphosphatases ; genetics ; Adolescent ; Arginine ; genetics ; Asian Continental Ancestry Group ; Cation Transport Proteins ; genetics ; Child ; Copper-transporting ATPases ; Diagnosis, Differential ; Exons ; Female ; Hepatolenticular Degeneration ; diagnosis ; genetics ; Humans ; Leucine ; genetics ; Male ; Medicine, Chinese Traditional ; Phenotype ; Point Mutation
4.Ultrasonographic diagnosis of pancreas endocrine tumors
Hui ZHANG ; Wenping WANG ; Zhizhang XU ; Limin LIU ; Yuan JI ; Hong DING ; Jiaying CAO
Chinese Journal of Ultrasonography 2008;17(11):962-964
Objective To assess the value of ultrasonography(US)in the diagnosis of pancreas endocrine tumors(PET).Methods Thirty-six patients with PET confirmed by surgery and pathology were retrospectively reviewed.Results There were 37 PET in 36 patients,among which 33 tumors in 32 cases were detected bv US,four tumors were missed on US and the detection rate was 88.9%(32/36).The tumor size was 1.0 cm×0.8 cm~12.9 cm× 11.3 cm.Among 12 cases of equal to or less than 2 cm,9 tumors were detected and the detection rate was 75.0%.PET presented mostly hypoechogenicity(78.8%),other 7 cases presented mixed-echogenicity.Color Doppler US was performed on 12 cases and 11 tumors showed color blood signals.Abundant flow signal was detected in 8 tumors(66.7%).PET were found in pancreatic head (n=11),neck(n=2),body(n=6)and tail(n=11),which was diagnosed correctly in 30 cases (81.1%).Conclusions US is a useful tool in the detection and diagnosis of PET.
5.The expression and significance of MCM7 protein in hepatocellu-lar carcinoma tissues of human, rat and tree shrew
Lingqun ZHU ; Chun YANG ; Hong QIN ; Xiaoxu LU ; Yuan LI ; Chao OU ; Jianjia SU ; Ji CAO
Chinese Journal of Clinical Oncology 2013;(16):951-955
Objective:To test the expression of Minichromosome maintenance complex component 7(MCM7) protein in hepato-cellular carcinoma(HCC) of different species including human, rat and tree shrew (tupaia) by cross-species oncogenomics approach, and to investigate the relationship between the expression of MCM7 and the development of hepatocellular carcinoma and its clinical significance. Methods:Western blot and Immunohistochemistry were applied to detect the expression levels of MCM7 protein in HCC tissues,corresponding HCC-adjacent liver tissues and normal liver tissues collected from different species including human, rat and tree shrew, respectively. The clinicopathologic factors were also analyzed with the results of Immunohistochemistry. Results:Western blot analysis showed that the expression of MCM7 protein in HCC tissues of human and rat were higher than that in corresponding HCC-ad-jacent liver tissues and normal liver tissues, respectively and significantly (P<0.05). However, the expression of MCM7 protein in HCC tissues of tree shrew were also higher than that in corresponding HCC-adjacent liver tissues and normal liver tissues, but no significant difference was found among three types of tissues (P>0.05).There was also no significant difference between HCC-adjacent liver tis-sues and normal liver tissues in three species (P>0.05). Immunohistochemical analysis showed that MCM7 protein was mainly ex-pressed in nucleus of HCC cells, and the positive rate of MCM7 protein in HCC tissues of human, rat and tree shrew were significantly higher than that in corresponding HCC-adjacent liver tissues and normal liver tissues, respectively (P<0.05). However, no significant difference was found between HCC-adjacent liver tissues and normal liver tissues (P>0.05). Moreover, the protein level of MCM7 was intimately related to patient's HCC stage, extrahepatic metastases and postoperative recurrence (P<0.05). Conclusion:MCM7 protein might play a pivotal role in hepatocarcinogenesis. In addition, it was probably related to patient's HCC stage, extrahepatic metastases and postoperative recurrence. It seems very likely that MCM7 may be applied as a new molecular target in HCC prevention and treat-ment.
6.Quantitative analysis of contrast-enhanced ultrasonography on hepatocellular carcinoma: Correlation with tumor differentiated grades
Peili FAN ; Hong DING ; Jiakai GUO ; Xiyuan LIN ; Yuan JI ; Huichuan SUN ; Wenping WANG
Chinese Journal of Medical Imaging Technology 2009;25(12):2243-2245
Objective To investigate the relationship between hemodynamic parameters from quantitative analysis of contrast-enhanced ultrasonography (CEUS) on hepatocellular carcinoma (HCC) and pathological tumor differentiated grades. Methods Seventy-seven HCC lesions were examinated and off-line analyzed with dynamic images. Quantitative parameters such as slope of decrease to half of peak (SD), increased signal intensity (ISI), area under the curve (AUC) and blood flow coefficient (BF) were acquired, and the standardized values (sISI, sAUC and sBF) included the ratio of parameters from tumor to those from hepatic parenchyma. These quantitative parameters were correlated with tumor grades according to Edmonson criteria. Results There was significant difference (P<0.05) of SD, AUC and BF, as well as standardized values (sISI, sAUC and sBF) between different grades of HCC. AUC, BF, sISI, sAUC and sBF were negative correlated with differentiated grades, respectively (P<0.05). Well-differentiated HCC had significantly higher perfusion values than HCC of other grades (P<0.05). Conclusion Quantitative analysis of CEUS can assess differentiation of HCC indirectly, and might reveal biological behavior of malignant tumors.
7.Tuina for primary insomnia: a meta-analysis
Miao CAO ; Fang-Fang DENG ; Qun YUAN ; Ji-Dong ZHANG ; Qing-Hu HE ; Jue HONG
Journal of Acupuncture and Tuina Science 2018;16(4):236-242
Objective:To systematically evaluate the therapeutic efficacy of tuina therapy for primary insomnia.Methods:Nine Chinese and English databases were searched from the inception to May 2017 to identify randomized controlled trials (RCTs) studying tuina therapy for insomnia.The enrolled articles were all RCTs with tuina as the monotherapy or major therapy in the experiment group,with clear diagnostic criteria for primary insomnia well recognized worldwide or in China,and Pittsburgh sleep quality index (PSQ I) as one of the outcome measures.Two researchers evaluated the risk of bias and quality of the enrolled studies by following Cochrane Handbook version 5.1.0.The meta-analysis was performed by RevMan version 5.3.Results:Eleven studies were included with a total of 1 076 participants.The Western medication adopted in the control groups were benzodiazepine receptor agonists.The studies were all assessed as high risk of bias for blinding since blinding method was unable to be performed due to the specificity of tuina therapy;no study reported the support of fund or potential interest conflict,so they were all rated unclear for selective reporting.The meta-analysis showed that compared with other traditional Chinese medicine therapies,tuina worked more effectively in reducing the PSQI score (MD=-4.11<0,95% confidence interval (CI)-6.01 to-2.22,P<0.0001);compared with oral administration of Western medication,tuina showed more significant efficacy in reducing the PSQI score (MD=-3.42<0,95%CI-5.19 to-1.66,P<0.0001).Subgroup analysis showed that head tuina alone showed no significant difference compared with oral administration of Western medication regarding the change of PSQI score (MD=-4.19<0,95%CI-8.87 to 0.50,P>0.05);a combination of head and back tuina could more effectively reduce the PSQI score compared with oral administration of Western medication (MD=-2.08<0,95%CI-3.09 to-1.06,P<0.0001).Conclusion:Tuina can produce more significant efficacy in treating primary insomnia compared with other traditional Chinese medicine therapies and oral administration of Western medication,especially the combination of head and back tuina.
8.Protective effects of imipramine on ischemic injury in cultured rat cerebral neurons
Yong XU ; Biansheng JI ; Yuan GAO ; Hong LIU ; Qingrong XU ; Guiqin ZHANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2000;0(02):-
AIM: To study the protective effects of Imipramine (Imi) on ischemic injury in cultured rat cerebral cortical neurons. METHODS: Cortical neurons of fetal rat were cultured in vitro. The protective effects of Imi on ischemic injury in cultured rat cerebral neurons were observed. RESULTS: Imi ( 10 -5, 10 -6, and 10 -7 mol?L -1) reduced the number of cell death, lowered LDH,NO,and MDA content, and increased of activity of SOD. CONCLUSION: Imi can protect rat cerebral cortical neurons from ischemic injury and toxicity of Glu. And it maybe attribute its to antioxidation and calcium antagonism.
9.STUDIES ON A NEW METHOD FOR COUNTING LIVING BACTERIAL CELL NUMBER
Hong-Gang WEI ; Yuan-Guang LI ; Jian LIU ; Guo-Min SHENG ; Ji-Min WU ;
Microbiology 1992;0(02):-
MTT Colorimetric method is usually applied for measuring the living animal cell number. By changing the reaction temperature and the reaction time as well as the colorimetric wavelength, the improved MTT colorimetric method was established to count the living bacterial cell number. This new method was used to measure the living cell concentration in the process for culturing bacteria PBW1. The results measured by the improved MIT colorimetric method and dilute plate method are similar. Compared with other methods including the dilute plate method, the improved MTT colorimetric method has many advantages such as accuracy, quickness.
10.Construction of Recombinant Yeast Converting Xylose Angd Glucose to Ethanol
Zhen-Hong YUAN ; Ya-Ping PAN ; Ji-Kai LIU ; Yong-Jie YAN ; Xiu-Shan YANG ;
Microbiology 1992;0(03):-
Candida shehatae xyl1 gene and Pichia stipitis xyl2 gene were amplified by PCR and the xyl1 and xyl2 were both placed under the promoter GAL of vector pYES2 to produce the recombinant expression vector pYES2-P12. Subsequently the pYES2-P12 vector was transformed into S. cerevisiae YS58 by LiAc to produce the recombinant yeast YSS8-12. It was indicate that the recombinant yeast YSS8-12 could converse xylose to ethanol with the xylose consumption rate of 81. 3%.