Results 41 to 50 of about 4,217 (131)

miR-1197负调控Smad3抑制结肠癌细胞SW620的增殖、侵袭、迁移能力及S期细胞周期的聚集相关研究

open access: yesZhongguo shiyan zhenduanxue, 2019
目的研究miR-1197负调控Smad3抑制结肠癌细胞SW620的增殖、侵袭、迁移能力及S期细胞周期的聚集,分析miR-1197在结肠癌发生及发展中的作用。方法 qRT-PCR检测miR-1197在结肠癌患者血清,肿瘤组织和癌旁正常组织中的表达水平并分析其与结肠癌患者临床特征的相关性;采用miRBase筛选miR-1197的潜在靶基因Smad3并通过荧光素酶报告基因法,qRT-PCR及Western blot验证miR-1197对Smad3的靶向调控作用;Western ...
张隆陶, 王劲, 张贻庆, 崔贵医
doaj  

Primary Study of The Inhibition of ACA on CRM1 Dependent Nuclear Export [PDF]

open access: yes, 2007
乙酰氧基胡椒酚乙酸酯(1’-acetoxychavicolacetates,ACA)是一种从高良姜中提取的天然小分子化合物,具有抗肿瘤,抗过敏,抗真菌,保胃,抗氧化和黄嘌呤氧化酶抑制剂等多种生物学功能。但是ACA的药物作用机理的相关研究还停留于初级阶段;我们的研究发现ACA可能是通过抑制CRM1依赖的蛋白出核运输而实现其生物学功能的。 我们选取了ZR-75-30,SK-BR-3,MDA-MB-453,MCF-7,Bcap-37五种乳腺癌细胞系,分别检测了ACA对他们的毒性作用,发现ACA在10μmol ...
卓心明
core  

Strategies for Optimizing Tumor Physical Microenvironment to Enhance in Situ Vaccine Efficacy [PDF]

open access: yes
In situ tumor vaccine has become an important strategy in cancer immunotherapy owing to its ability to induce immune responses locally and overcome tumor heterogeneity.
Baorui LIU   +4 more
core   +1 more source

AKT1基因PH结构域在亚洲胃肠道肿瘤中的变异研究

open access: yesZhongguo shiyan zhenduanxue, 2010
目的分析AKT1基因PH(the pleckstrin homology,PH)结构域第4外显子的碱基序列,探讨中国人和日本人AKT1基因突变与胃肠道肿瘤的关系。方法采用激光显微切割技术捕获胃癌组织和大肠癌组织的肿瘤细胞,以这些标本的基因组DNA为模板,用聚合酶链反应PCR方法扩增AKT1基因PH结构域,PCR产物经纯化后直接测序。结果分析测序图发现AKT1基因PH结构域第4外显子第49核苷酸没有出现点突变。结论中国人和日本人的胃肠道肿瘤的AKT1基因PH结构域没有出现点突变 ...
李玉琴   +4 more
doaj  

Traditional Chinese Medicine Regulates Tumor-associated Macrophages in Colorectal Cancer:A Review [PDF]

open access: yes
Colorectal cancer(CRC),a most common malignant tumor of the digestive tract,is often manifested by abdominal pain,changes in stool quality,blood in the stool,and weight loss,with rising morbidity and mortality year by year.
Cai, Mengyuan   +5 more
core   +2 more sources

放大光学增强内镜在结直肠息肉诊疗决策中的应用

open access: yesZhongguo shiyan zhenduanxue, 2019
结直肠癌是常见的消化道恶性肿瘤。大部分早期结直肠癌预后良好,5年生存率超过90%[1]。腺瘤性息肉与恶性肿瘤的发生发展密切相关。因此,对结直肠息肉等癌前病变尤其是癌变息肉的早期发现与治疗,成为结直肠癌二级预防的关键[2]。近年来,内镜成像技术的发展使早期结直肠癌及癌前病变的准确诊断成为可能。其中,放大 ...
程星, 李玫, 李长锋
doaj  

Probiotic Characterization of β-Glycosidase Producing Lactobacillus gullinarum and Its Application in the Fermentation of Black Tea Soup [PDF]

open access: yes
This study aimed to isolate lactic acid bacteria capable of producing β-glucosidase from healthy infant feces and Chinese northeast sauerkraut. Then the strain with the highest β-glucosidase activity was identified for subsequent evaluation of the safety,
Dangfeng WANG   +6 more
core   +1 more source

血管内皮生长因子反义基因真核表达载体构建的研究

open access: yesZhongguo shiyan zhenduanxue, 2012
微血管的生成与肿瘤的生长、发展与转移密不可分,抑制血管生成已成为近年来抗肿瘤治疗研究的重要课题和热点问题。结肠癌是临床常见的恶性肿瘤之一,严重威胁人类健康,探索治疗结肠癌新技术、新方法具有重要的临床价值。本实验将血管内皮生长因子反义基因成功克隆构建了真核表达载体,为下一步结肠癌细胞体外培养干预实验和临床抗肿瘤应用试验做好了前期工作。
辛贺, 李国栋, 房学东, 王乐乐
doaj  

Roles of Matricellular Protein Periostin in Tumor Premetastatic Niche [PDF]

open access: yes, 2012
在肿瘤转移过程中,肿瘤细胞必须经过一系列复杂的过程才可在转移灶形成转移癌。目前研究发现,肿瘤微环境不仅促进了原位癌肿瘤细胞的生存和增殖,而且随着肿瘤的发生发展,肿瘤组织分泌的因子进入血液作用于远处转移靶器官,改变其组织微环境,形成肿瘤转移前微环境为扩散的肿瘤细胞的附着以及增殖提供有利的条件,从而促进转移癌的形成。目前研究发现在肿瘤组织中,细胞外基质蛋白Periostin主要分布在肿瘤基质中,而Periostin在肿瘤微环境中的作用还没有报道 ...
王哲
core  

Shanghai plan for early screening, diagnosis and treatment of colorectal cancer (2023 edition) [PDF]

open access: yes
Colorectal cancer is a common malignant tumor in China. At present, the incidence rate and the mortality rate of colorectal cancer in China are on the rise.
Colorectal Cancer Special Committee of Shanghai Anti-Cancer Association
core   +1 more source

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