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| 1 | Influence of adriamycin on changes in Nanog, Oct-4, Sox2, ARID1 and Wnt5b expression in liver cancer stem cells显示文摘AIM:To determine the influence of Adriamycin(ADM)on the changes in Nanog,Oct4,Sox2,as well as,in ARID1 and Wnt5b expression in liver cancer stem cells.METHODS:The MHCC97-L and HCCLM3 liver cancer cell lines were selected as the cell models in this study,and were routinely cultured.The 50%lethal dose(LD50)in the cell lines was detected by the MTT assay.Expression changes in liver cancer stem cell related genes(Nanog,Oct-4,Sox2,ARID1,and Wnt5b)were detected by western blot following treatment with ADM(LD50).RESULTS:The LD50 of ADM in MHCC97-L cells was lower than that in HCCLM3 cells(0.4123±0.0236μmol/L vs 0.5259±0.0125μmol/L,P<0.05).Wnt5b and Nanog were expressed in both MHCC97-L and HCCLM3 cells,while only Sox2 was expressed in HCCLM3cells.However,neither ARID1A nor Oct4 was detected in these two cell lines.Genes,related to the stem cells,showed different expression in liver cancer cells with different metastatic potential following treatment with ADM(LD50).Wnt5b protein increased gradually within4 h of ADM(LD50)treatment,while Nanog decreased(P<0.05).After 12 h,Wnt5b decreased gradually,while Nanog increased steadily(P<0.05).In addition,only Sox2 was expressed in HCCLM3 cells with high metastatic potential following ADM(LD50)treatment.The expression of Sox2 increased gradually with ADM(LD50)in HCCLM3 cells(P<0.05).CONCLUSION:ADM increased the death rate of MHCC97-L and HCCLM3 cells,while the growth suppressive effect of ADM was higher in MHCC97-L cells than in HCCLM3 cells. | Ding Sun Lei Qin Yang Xu Jian-Xia Liu Li-Ping Tian Hai-Xin Qian | 2014 | World Journal of Gastroenterology2014，20，22： | 10 |
| 2 | Characteristics of and risk factors for colorectal neoplasms in young adults in a screening population显示文摘AIM: To investigate prevalence and risk factors for colorectal neoplasms in adults aged < 50 years, for whom screening is not recommended.METHODS: This cross-sectional study compared prevalence and characteristics of colorectal and advanced adenomas in patients aged < 50 years who underwent colonoscopy screening with subjects aged ≥ 50 years. To evaluate risk factors for colorectal and advanced adenoma in young adults, we used multivariable logistic regression models. Colorectal neoplasm characteristics were evaluated and compared with those in older patients.RESULTS: Among 2819 patients included, prevalences of colorectal adenoma and advanced adenoma were 19.7% and 1.5%, respectively. As patient age increased, so did the prevalence of colorectal neoplasm. However, prevalence of advanced adenoma did not differ between age-groups 45-49 years and ≥ 50 years(OR = 0.43, 95%CI: 0.17-1.07, P = 0.070). In younger age-group(< 50 years), colorectal adenoma was significantly associated with older age, waist circumference(OR = 1.72, 95%CI: 1.15-2.55, P = 0.008), and current smoking(OR = 1.60, 95%CI: 1.07-2.41, P = 0.023). Alcohol consumption was an independent risk factor for colorectal advanced adenoma(OR = 3.69, 95%CI: 1.08-12.54, P = 0.037). Multiple neoplasms and large neoplasms(≥ 1 cm) were more prevalent in subjects ≥ 50 years.CONCLUSION: Current screening strategies for colorectal cancer may need to be amended to account for patient age, especially in young subjects with abdominal obesity, current smoking and alcohol consumption. | Seung Eun Lee Hee Bum Jo Won Gun Kwack Yun Jin Jeong Yeo-Jin Yoon Hyoun Woo Kang | 2016 | World Journal of Gastroenterology2016，22，10： | 8 |
| 3 | 重视消化道早期癌的内镜诊治显示文摘近年来,随着新型内镜诊断技术及图像优化技术的问世,消化道早期癌的检出率得到了进一步的提高,新型内镜治疗技术的出现及推广推动了消化道早期癌的微创治疗,但我国消化道早期癌的内镜诊治水平与发达国家之间仍存在一定的差距,本文以我国消化道早期癌内镜诊治现状为基础,就消化道早期癌的内镜诊治策略进行评述。 | 邢洁 李鹏 张澍田 | 2014 | 中华结直肠疾病电子杂志2014，3，6： | 7 |
| 4 | 阿霉素对不同转移能力肝癌细胞及肝癌干细胞相关基因表达的影响显示文摘目的探讨阿霉素(adriamycin,ADM)对不同转移能力肝癌细胞及肝癌干细胞相关基因表达的影响。方法利用MTT法检测ADM对人肝癌细胞系MHCC97-L、HCCLM3的抑制作用,计算各自的半数致死浓度(median lethal dose,LD50);Western blot法检测ADM作用下人肝癌细胞系MHCC97-L、HCCLM3中干细胞基因Nanog、Oct-4、Sox2、ARID1A、Wnt5b的表达,并分析干细胞基因在两种细胞中表达变化的差异。结果 ADM浓度越高,对人肝癌细胞的抑制作用越明显,其对MHCC97-L和HCCLM3的半数致死浓度分别为0.4212μmol/L和0.5249μmol/L;随着ADM(LD50)作用时间的延长,MHCC97-L和HCCLM3中Wnt5b的表达水平先升高后降低,Nanog蛋白的表达先降低后升高,Sox2在HCCLM3中表达水平逐渐升高。Wnt5b和Nanog 4 h内在低转移能力肝癌细胞系MHCC97-L中的表达变化均值均小于其在高转移能力肝癌细胞系HCCLM3时的表达变化均值,差异有统计学意义(P<0.05)。结论 ADM可促进MHCC97-L和HCCLM3细胞的凋亡,且对MHCC97-L的作用强于HCCLM3;干细胞相关基因Wnt5b与肝癌细胞的恶性程度呈负相关;Nanog和Sox2均与肿瘤的转移密切相关,且Nanog和Sox2可能与肝癌耐药密切相关。 | 袁鹏 岳天华 肖艳华 朱梁军 李晟 陈宝安 王传伟 | 2015 | 肿瘤防治研究2015，42，12： | 2 |
| 5 | Simple colonoscopy reporting system checking the detection rate of colon polyps显示文摘AIM: To present a simple colonoscopy reporting system that can be checked easily the detection rate of colon polyps.METHODS: A simple colonoscopy reporting system Kosin Gastroenterology(KG quality reporting system) was developed. The polyp detection rate(PDR),adenoma detection rate(ADR),serrated polyp detection rate(SDR),and advanced adenoma detection rate(AADR) are easily calculated to use this system.RESULTS: In our gastroenterology center,the PDR,ADR,SDR,and AADR test results from each gastroenterologist were updated,every month. Between June 2014,when the program was started,and December 2014,the overall PDR and ADR in our center were 62.5% and 41.4%,respectively. And the overall SDR and AADR were 7.5% and 12.1%,respectively.CONCLUSION: We envision that KG quality reporting system can be applied to develop a comprehensive system to check colon polyp detection rates in other gastroenterology centers. | Jae Hyun Kim Youn Jung Choi Hye Jung Kwon Seun Ja Park Moo In Park Won Moon Sung Eun Kim | 2015 | World Journal of Gastroenterology2015，21，31： | 0 |
| 6 | Computed tomography colonography for the practicing radiologist:A review of current recommendations on methodology and clinical indications显示文摘Colorectal cancer(CRC) represents one of the most relevant causes of morbidity and mortality in Western societies. CRC screening is actually based on faecal occult blood testing, and optical colonoscopy still remains the gold standard screening test for cancer detection. However, computed tomography colonography(CT colonography) constitutes a reliable, minimally-invasive method to rapidly and effectively evaluate the entire colon for clinically relevant lesions. Furthermore, even if the benefits of its employment in CRC mass screening have not fully established yet, CT colonography may represent a reasonable alternative screening test in patients who cannot undergo or refuse colonoscopy. Therefore, the purpose of our review is to illustrate the most updated recommendations on methodology and the current clinical indications of CT colonography, according to the data of the existing relevant literature. | Paola Scalise Annalisa Mantarro Francesca Pancrazi Emanuele Neri | 2016 | World Journal of Radiology2016，8，5： | 0 |
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