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| 1 | Comparison of alternative extraction methods for secretome profiling in human hepatocellular carcinoma cells显示文摘Secreted proteins are important sources for early detection and diagnosis of disease, and as such have received considerable attention. The extraction of low concentration proteins from large volumes of culture media, which are rich in salts and other compounds that interfere with most proteomics techniques, presents a problem for secretome studies. Ultrafiltration, precipitation, and dialysis are three major extraction methods that can be used to overcome this problem. The present study for the first time, compared the merits and shortcomings of these three methods, without bias. Centrifugal ultrafiltration provided the best extraction efficiency, and precipitation provided the highest number of identifiable proteins. The three methods yielded closely related, but different, information on the secretome; thus, they should be considered complementary or, at least, supplementary methods. Three hundred and sixty unique proteins were identified, including 211 potential secreted proteins. Compared with previous studies, this study also identified 42 new secreted proteins. The present study not only offers a reference for the selection of secretome extraction methods, but also expands the secretome database for the investigation of hepatocellular carcinoma. | CAO Jing SHEN ChengPin ZHANG Jun YAO Jun SHEN HuaLi LIU YinKun LU HaoJie YANG PengYuan | 2011 | Science China(Life Sciences)2011，54，1： | 8 |
| 2 | The efficacy and safety of nimodipine in acute ischemic stroke patients with mild cognitive impairment: a double-blind, randomized,placebo-controlled trial显示文摘Nimodipine might be effective in subcortical vascular dementia(VaD). Its benefit in preventing further cognitive decline in patients with acute ischemic stroke(AIS) and vascular mild cognitive impairment(VaMCI) remains to be established. In this multicenter, double-blind trial, we randomly assigned 654 eligible patients to nimodipine 30 mg three times a day or placebo. The primary outcome was any cognitive decline defined by the changes on the Mini-Mental State Examination(DMMSE à3) or vascular AD assessment scale cognitive subscale(DADAS-cog ! 4) at 6 months. Secondary outcomes included any distribution shift of DADAS-cog, DMMSE or cognitive improvement defined by DADAS-cog à2, or DMMSE ! 0. The primary outcome in the nimodipine group and placebo group were similar for DMMSE à3(4.18% and 7.22%, respectively, P = 0.15) and DADAS-cog ! 4(8.36% and 8.93% respectively,P = 0.88). The distribution shift of DADAS-cog and DMMSE differed significantly between the two groups(P = 0.03 and P = 0.05 respectively). Cognitive improvement occurred in 55.4% in the nimodipine group and 43.6% in the placebo group measured by DADAS-cog à2(Odds Ratio, 1.54; 95% confidence interval[CI] 1.10–2.14, P < 0.01) or 84.0% and 74.6% respectively by DMMSE ! 0(Odds Ratio, 1.79; 95% CI 1.18–2.70, P < 0.01). Nimodipine was associated with better cognitive function in the memory domain. The adverse events rate was similar in two groups. This study is registered with ClinicalTrials.gov,NCT01220622. Nimodipine did not show benefit to prevent cognitive decline in AIS patients with VaMCI, but improved cognition moderately, especially measured in the memory domain. | Huaguang Zheng Yilong Wang Anxin Wang Hao Li David Wang Xingquan Zhao Penglian Wang Haipeng Shen Lijun Zuo Yuesong Pan Zixiao Li Xia Meng Xianwei Wang Weixiong Shi Yi Ju Liping Liu Kehui Dong Chunxue Wang Rubo Sui Rong Xue Xiaoping Pan Xiaoyua Niu Benyan Luo Yi Sui Huali Wang Tao Feng Yongjun Wang | 2019 | Science Bulletin2019，64，2： | 5 |
| 3 | Nuclear proteome profile of C57BL/6J mouse liver显示文摘The liver proteome can serve as a reference to better understand both disease mechanisms and possible therapeutics,since the liver is an important organ in the body that performs a large number of tasks.Here we identify the organelle proteome of C57BL/6J mouse liver nuclei as a promising strategy to enrich low abundance proteins,in the sense that analysis of whole liver cells is rather complex for current techniques and may not be suitable for proteins with low abundance.Evaluation of nucleus integrity and purity was performed to demonstrate the effectiveness of the optimized isolation procedure.The extracted nuclear proteins were identified by 2-DE MS analyses,and a total of 748 proteins were identified.Bioinformatic analyses were performed to demonstrate the physicochemical properties,cellular locations and functions of the proteins. | ZHANG Yang FANG CaiYun BAO HuiMin FAN HuiZhi SHEN HuaLi YANG PengYuan | 2013 | Science China(Life Sciences)2013，56，6： | 3 |
| 4 | THEORETICAL ANALYSIS AND EXPERIMENTAL STUDY OF CARBON NANOTUBE PROBE AND CONVENTIONAL ATOMIC FORCE MICROSCOPY PROBE ON SURFACE ROUGHNESS显示文摘In this paper,three different tips are employed,i.e.,the carbon nanotube tip, monocrystalline silicon tip and silicon nitride tip.Resorting to atomic force microscope(AFM),they are used for measuring the surface roughness of indium tin oxide(ITO)film and the immunoglobulin G(IgG)proteins within the scanning area of 10μm×10μm and 0.5μm×0.5μm,respectively. Subsequently,the scanned surface of the ITO film and IgG proteins are analyzed by using fractal dimension.The results show that the frectal dimension measured by carbon nanotube tip is biggest with the highest frequency components and the most microscopic information.Therefore,the carbon nanotube tip is the ideal measuring tool for measuring super-smooth surface,which will play a more and more important role in the high-resolution imaging field. | WANG Jinghe WANG Hongxiang XU Zongwei DONG Shen WANG Shiqian ZHANG Huali | 2008 | Chinese Journal of Mechanical Engineering2008，21，5： | 0 |
| 5 | Metastasis-related genes in hepatocellular carcinoma cell-lines are clustered on chromosome territories predicted by transcriptome and proteome显示文摘Recently,we have analyzed expressional transcriptome and proteome for a number of cancer cell lines,including 8hepatocellular carcinoma(HCC)ones[1,2].These 8 HCC cell lines consist of 6 metastatic(all with mutant p53)and 2non-metastatic(with a mutant and a lost p53)ones,being all HBV traceable for relatively close genetic-backgrounds.We have analyzed the related dataset and obtained transcriptome(16353 genes)and proteome(7861 proteins)of these 8HCC cell lines,and explored a group of up-regulated | Li Feng Hong Li Yang Zhang Huali Shen Hongxiu Yu Fan Zhong Lunxiu Qin Fuchu He Pengyuan Yang Zhaoyou Tang | 2016 | Science China Chemistry2016，59，3： | 0 |
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