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3.5m^3下翻开门侧卸式矿车
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作者 肖甲森 《金属矿山》 CAS 北大核心 1995年第6期23-26,共4页
将3.5m3侧卸式矿车的开门机构由原来的上翻式改为下翻式,使其卸料迅速,复位灵位.文中介绍这种新型矿车的结构特点并论述其回复力矩裕度的计算.
关键词 侧卸式矿车 开门机构 下翻式 矿车
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Biomarkers for the early diagnosis of hepatocellular carcinoma 被引量:80
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作者 Nobuhiro Tsuchiya Yu Sawada +3 位作者 Itaru Endo Keigo Saito Yasushi Uemura Tetsuya Nakatsura 《World Journal of Gastroenterology》 SCIE CAS 2015年第37期10573-10583,共11页
Hepatocellular carcinoma(HCC) is the fifth most common cancer and the second leading cause of cancer-related deaths worldwide. Although the prognosis of patients with HCC is generally poor, the5-year survival rate is ... Hepatocellular carcinoma(HCC) is the fifth most common cancer and the second leading cause of cancer-related deaths worldwide. Although the prognosis of patients with HCC is generally poor, the5-year survival rate is > 70% if patients are diagnosed at an early stage. However, early diagnosis of HCC is complicated by the coexistence of inflammation and cirrhosis. Thus, novel biomarkers for the early diagnosis of HCC are required. Currently, the diagnosis of HCC without pathological correlation is achieved by analyzing serum α.fetoprotein levels combined with imaging techniques. Advances in genomics and proteomics platforms and biomarker assay techniques over the last decade have resulted in the identification of numerous novel biomarkers and have improved the diagnosis of HCC. The most promising biomarkers,such as glypican-3, osteopontin, Golgi protein-73 and nucleic acids including microRNAs, are most likely to become clinically validated in the near future. These biomarkers are not only useful for early diagnosis of HCC, but also provide insight into the mechanisms driving oncogenesis. In addition, such molecular insight creates the basis for the development of potentially more effective treatment strategies. In this article,we provide an overview of the biomarkers that are currently used for the early diagnosis of HCC. 展开更多
关键词 α-fetoprotein α-fetoprotein-L3 BIOMARKER Des-γ-car
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单梁和三梁三车翻车机的2种新结构 被引量:1
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作者 陈立志 党琪 刘文英 《铁道车辆》 2015年第1期27-28,37,共3页
提出了2种全新结构(单梁三端环铰接结构及三梁双端环铰接结构)三车整体平台式翻车机,同时分析了这2种翻车机的结构特点及其优点。
关键词 三车翻车机 单梁三端环铰接 三梁双端环铰接
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长效抑制TIM-3表达增强ROR1嵌合抗原受体修饰的T细胞的抗肿瘤免疫应答
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作者 夏玉龙 蒋继宏 +6 位作者 金昕 师春青 张小冬 蒋金洲 宋启斌 陈瑞 吴炯 《中国细胞生物学学报》 CAS CSCD 2022年第8期1592-1602,共11页
该文探讨了T细胞免疫球蛋白黏蛋白3(T cell immunoglobulin and mucin domain-containing protein 3,TIM-3)基因沉默对靶向ROR1的嵌合抗原受体(ROR1-CAR)修饰的T细胞增殖和抗肿瘤免疫应答的影响及其作用机制。通过短发夹RNA(short hairp... 该文探讨了T细胞免疫球蛋白黏蛋白3(T cell immunoglobulin and mucin domain-containing protein 3,TIM-3)基因沉默对靶向ROR1的嵌合抗原受体(ROR1-CAR)修饰的T细胞增殖和抗肿瘤免疫应答的影响及其作用机制。通过短发夹RNA(short hairpin RNA,shRNA)基因沉默技术长效抑制TIM-3在ROR1-CAR T细胞中的表达,采用qRT-PCR和Western blot实验检测TIM-3在mRNA和蛋白水平的表达情况;采用ELISA实验验证TIM-3基因沉默的ROR1-CAR T细胞对靶细胞的杀伤能力的影响;流式细胞检测进一步评估抑制TIM-3表达对ROR1-CAR T细胞的靶向杀伤和抗原依赖性的增殖能力的影响。结果显示,shRNA可显著抑制TIM-3在ROR1-CAR T细胞中的表达,但不影响ROR1-CAR T细胞的百分比和增殖活性;通过检测发现ROR1阳性的人结肠癌细胞系SW620分泌高水平的TIM-3配体—半乳凝素9(Galectin-9),该配体可直接作用于ROR1-CAR T细胞而发挥免疫负调控作用。另外,长效抑制TIM-3的表达促进了ROR1-CAR T细胞的抗原依赖性的细胞因子释放和增殖。总之,消除ROR1-CAR T细胞表面的TIM-3与肿瘤细胞来源的Galectin-9之间的相互作用可有效增强ROR1-CAR T细胞的抗肿瘤活性。 展开更多
关键词 TIM-3 短发夹RNA ROR1-car T细胞 半乳凝素9 抗肿瘤活性
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