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611篇 您的检索式:作者名="Dan Sun"
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1Genome editing with RNA-guided Cas9 nuclease in Zebrafish embryos显示文摘有类型 II 的最近的进展定期聚类 interspaced 短 palindromic 重复(CRISPR ) 系统诺言染色体编辑的一条改进途径。然而,在模型有机体的这个系统的适用性和效率例如 zebrafish,几乎没被学习。这里,我们报导那指导 RNA 的 Cas9 核酸酶高效地便于染色体以一种简单、柔韧的方式在哺乳动物的房间和 zebrafish 胚胎编辑。当特定的 Cas/gRNA 被用来在 vivo 在 zebrafish 胚胎指向任何一个 etsrp, gata4 或 gata5 时,超过 35% 地点特定的体的变化被发现。Cas9/gRNA 高效地在结果导致了 etsrp 或 gata5 的 biallelic 变换体的房间,在 etsrp 在 fau 异种胚胎或贲门 bifida 显型 > tm236a 异种胚胎。最后,我们成功地完成了 Cas9/gRNA 系统在 zebrafish 胚胎导致的 mloxP 顺序的地点特定的插入。这些结果证明 Cas9/gRNA 系统有为 zebrafish 和另外的模型有机体成为一个简单、柔韧、有效的反向的基因工具的潜力。和另外的染色体工程技术, Cas9 系统为在生物学,农业,环境研究和药的应用是有希望的。Nannan Chang Changhong Sun Lu Gao Dan Zhu Xiufei Xu Xiaojun Zhu Jing-Wei Xiong Jianzhong Jeff Xi 2013Cell Research2013,23,4:155
2Preventive effect of glutamine on intestinal barrier dysfunction induced by severe trauma显示文摘AIM: To investigate the mechanism underlying intestinalbarrier function damage after severe trauma and thetherapeutic effect of glutamine.METHODS: Burned patients, and animal models of severstrauma replicated by hemorrhagic shock combined withendotoxin infusion and burn injury, were included in a serialexperiment. Effects of oral glutamine on intestinal barrierfunction were observed in scalded rets. Parametersmeasured in these experiments were as follows: plasmalevels of diamine oxidase (DAO), tumor necrosis factor(TNFα), endotoxin (LPS), and lactate as well as D-lactateby biochemical methods, lactose/mannitol (L/M) ratio inurine by SP-3400, and pathological examination of intestinalmucosa under light microscopy.RESULTS: Plasma DAO activity was significantly increasedafter injury. There was a negative correlation betweenplasma DAO and intestinal mucosal DAO or pHi ( r= -0.93,plasma 0.80 ± 0.93,2.83 ± 1.71, 1.14 ± 0.64,2.36 ± 2.06 and2.49± 1.67 vs intestinal 0.52± 0.12,0.34 ± 0.03,0.45 ± 0.18,0.37± 0.26 and 0.41 ± 0.07; r = - 0.533, plasma 0.87 ± 0.75,1.89± 1.13, 1.21 ± 0.23,3.03 ± 2.61 and 4.70 ± 1.22 Vs pHi7.03± 0.05,7.05 ± 0.06,7.14 ± 0.096,7.20 ± 0.08 and 7.05 ±0.07; P < 0.01-0.05). Positive correlations were foundbetween DAO activity and plasma TNFα, LPS, lactate, L/Mand D-lactate ( r = 0.817, 0.842, 0.872, and 0.951; plasmaDAO 0.87 ± 0.75,1.89 ± 1.13, 1.21 ± 0.23,3.03 ± 2.61 and 4.70± 1.22 vs TNF 0.08 ± 0.02,0.03 ± 0.25,0.17 ± 0.09,0.34 ± 0.15and 0.33 ± 0.18; vs LPS 0.14 ± 0.03,0.16 ± 0.04,0.21 ± 0.02,0.18± 0.16 and 0.37 ± 0.10; vs lactate 9.03 ± 2.19, 18.30 ±2.56,9.81 ± 2.83,12.01 ± 6.83, 12.01 ± 6.84 and 43.61 ± 11.27;vs L/M 0.03 ± 0.01,0.41 ± 0.27,0.62 ± 0.20, 1.70 ± 0.60; r =0.774, plasma DAO 1.25 ± 0.41,2.17 ± 0.71,2.29 ± 0.87, 1.23± 0.55 and 1.11 ± 0.47 vs D-lactate 8.37 ± 2.48, 18.25 ± 6.18,13.96 ± 4.94, 8.93 ± 3.00 and 12.39 ± 4.94; all P < 0.01),repestively. Damage of intestinal mucosa was found bypathological examination. Intestinal barrier function wasimproved to a certain extent by oral glutamine in scaldedrats.CONCLUSION: Intestinal barrier function was damaged in theearly stage after trauma. Plasma DAO activity, D-lactatecontent, intestinal pHi and urine L/M may be sensitivemarkers of intestinal mechanical injury, and glutamine mayprotect against intestinal barrier dysfunction after severetrauma.Jun-You Li Yi Lu Sen Hu Dan Sun Yong-Ming Yao Burn Institute,Chinese PLA 304 Hospital,Beijing 100037,China 2002World Journal of Gastroenterology2002,8,1:74
3Improved survival of porcine acute liver failure by a bioartificial liver device implanted with induced human functional hepatocytes显示文摘Xiao-Lei Shi Yimeng Gao YupengYan HuchengMa Lulu Sun Pengyu Huang Xuan Ni Ludi Zhang Xin Zhao Haozhen Ren Dan Hu Yan Zhou Feng Tian Yuan Ji Xin Cheng Guoyu Pan Yi-Tao Ding LijianHui 2016Cell Research2016,26,2:31
4Correction of β-thalassemia mutant by base editor in human embryos显示文摘Puping Liang Chenhui Ding Hongwei Sun Xiaowei Xie Yanwen Xu Xiya Zhang Ying Sun Yuanyan Xiong Wenbin Ma Yongxiang Liu Yali Wang Jianpei Fang Dan Liu Zhou Songyang Canquan Zhou Junjiu Huang 2017Protein & Cell2017,8,11:34
5Compound Danshen injection improves endotoxin-induced microcirculatory disturbance in rat mesentery显示文摘AIM: To investigate the effect of compound Danshen injection on lipopolysaccharide (LPS)-induced rat mesenteric microcirculatory dysfunctions and the underlying possible mechanism by an inverted intravital microscope and high-speed video camera system. METHODS: LPS was continuously infused through the jugular artery of male Wistar rats at the dose of 2 mg/kg per hour. Changes in mesenteric microcirculation,such as diameters of arterioles and venules,velocity of RBCs in venules,leukocyte rolling,adhesion and emigration,free radicals released from post-capillary venules,FITC- albumin leakage and mast cell degranulation,were observed through an inverted intravital microscope assisted with CCD camera and SIT camera. Meanwhile,the expression of adhesion molecules CD11b/CD18 and the production of free radical in neutrophils,and the expression of intercellular adhesion molecule 1 (ICAM-1) in human umbilical vein endothelial cells (HUVECs) were quantified by flow cytometry (FACS) in vitro. RESULTS: The continuous infusion with LPS resulted in a number of responses in microcirculation,including a significant increase in the positive region of venulestained with Monastral blue B,rolling and adhesion of leukocytes,production of oxygen radical in venular wall,albumin efflux and enhanced mast cell degranulation in vivo,all of which,except for the leukocyte rolling,were attenuated by the treatment with compound Danshen injection. Experiments performed in vitro further revealed that the expression of CD11b/CD18 and the production of oxygen free radical in neutrophils,and the expression of ICAM-1 in HUVECs were increased by exposure to LPS,and they were attenuated by compound Danshen injection. CONCLUSION: These results suggest that compound Danshen injection is an efficient drug with multi-targeting potential for improving the microcirculatory disturbance.Jing-Yan Han Yoshinori Horie Soichiro Miura, Yasutada Akiba Jun Guo Dan Li Jing-Yu Fan Yu-Ying Liu Bai-He Hu Li-Hua An Xin Chang Man Xu De-An Guo Kai Sun Ji-Ying Yang Shu-Ping Fang Ming-Ji Xian Masahiro Kizaki Hiroshi Nagata Toshifumi Hibi 2007World Journal of Gastroenterology2007,13,26:26
6Endoscopic papillary large balloon dilation vs endoscopic sphincterotomy for retrieval of common bile duct stones:A meta-analysis显示文摘AIM:To compare the efficacy and safety of endoscopic papillary large balloon dilation(EPLBD)with endoscopic sphincterotomy(EST)in retrieval of common bile duct stones(≥10 mm).METHODS:PubMed,Web of Knowledge,EBSCO,the Cochrane Library,and EMBASE were searched for eligible studies.Randomized controlled trials(RCTs)that compared EPLBD with EST were identified.Data extraction and quality assessment were performed by two independent reviewers using the same criteria.Any disagreement was discussed with a third reviewer until a final consensus was reached.Pooled outcomes of complete bile duct stone clearance,stone clearance in one session,requirement for mechanical lithotripsy,and overall complication rate were determined using relative risk and 95%CI.The separate post-endoscopic retrograde cholangiopancreatography complications were pooled and determined with the Peto odds ratio and95%CI because of the small number of events.Heterogeneity was evaluated with the chi-squared test with P≤0.1 and I2 with a cutoff of≥50%.A fixed effects model was used primarily.A random effects model was applied when significant heterogeneity was detected.Sensitivity analysis was applied to explore the potential bias.RESULTS:Five randomized controlled trials with 621participants were included.EPLBD compared with EST had similar outcomes with regard to complete stone removal rate(93.7%vs 92.5%,P=0.54)and complete duct clearance in one session(82.2%vs 77.7%,P=0.17).Mechanical lithotripsy was performed less in EPLBD in the retrieval of whole stones(15.5%vs25.2%,P=0.003),as well as in the stratified subgroup of stones larger than 15 mm(24.2%vs 40%,P=0.001).There was no statistically significant difference in the incidence of overall adverse events(7.9%vs 10.7%,P=0.25),post-ERCP pancreatitis(4.0%vs 5.0%,P=0.54),hemorrhage(1.7%vs 2.8%,P=0.32),perforation(0.3%vs 0.9%,P=0.35)or acute cholangitis(1.3%vs 1.3%,P=0.92).CONCLUSION:EPLBD could be advocated as an alternative to EST in the retrieval of large common bile duct stones.Piao-Piao Jin Jian-Feng Cheng Dan Liu Mei Mei Zhao-Qi Xu Lei-Min Sun 2014World Journal of Gastroenterology2014,20,18:25
7Single-cell RNA-seq highlights intra-tumoral heterogeneity and malignant progression in pancreatic ductal adenocarcinoma显示文摘Pancreatic ductal adenocarcinoma (PDAC) is the most common type of pancreatic cancer featured with high intra-tumoral heterogeneity and poor prognosis. To comprehensively delineate the PDAC intra-tumoral heterogeneity and the underlying mechanism for PDAC progression, we employed single-cell RNA-seq (scRNA-seq) to acquire the transcriptomic atlas of 57,530 individual pancreatic cells from primary PDAC tumors and control pancreases, and identified diverse malignant and stromal cell types, including two ductal subtypes with abnormal and malignant gene expression profiles respectively, in PDAC. We found that the heterogenous malignant subtype was composed of several subpopulations with differential proliferative and migratory potentials. Cell trajectory analysis revealed that components of multiple tumor-related pathways and transcription factors (TFs) were differentially expressed along PDAC progression. Furthermore, we found a subset of ductal cells with unique proliferative features were associated with an inactivation state in tumor-infiltrating T cells, providing novel markers for the prediction of antitumor immune response. Together, our findings provide a valuable resource for deciphering the intra-tumoral heterogeneity in PDAC and uncover a connection between tumor intrinsic transcriptional state and T cell activation, suggesting potential biomarkers for anticancer treatment such as targeted therapy and immunotherapy.Junya Peng Bao-Fa Sun Chuan-Yuan Chen Jia-Yi Zhou Yu-Sheng Chen Hao Chen Lulu Liu Dan Huang Jialin Jiang Guan-Shen Cui Ying Yang Wenze Wang Dan Guo Menghua Dai Junchao Guo Taiping Zhang Quan Liao Yi Liu Yong-Liang Zhao Da-Li Han Yupei Zhao Yun-Gui Yang Wenming Wu 2019Cell Research2019,29,9:24
8Acupuncture promotes functional recovery after cerebral hemorrhage by upregulating neurotrophic factor expression显示文摘Acupuncture is widely used in the treatment of cerebral hemorrhage,and it improves outcomes in experimental animal models and patients.However,the mechanisms underlying the effectiveness of acupuncture treatment for cerebral hemorrhage are still unclear.In this study,a model of intracerebral hemorrhage was produced by injecting 50μL autologous blood into the caudate nucleus in Wistar rats.Acupuncture at Baihui(DU20)and Qubin(GB7)acupoints was performed at a depth of 1.0 inch,12 hours after blood injection,once every 24 hours.The needle was rotated at 200 r/min for 5 minutes,For each 30-minute session,needling at 200 r/min was performed for three sessions,each lasting 5 minutes.For the positive control group,at 6 hours,and 1,2,3 and 7 days after induction of hemorrhage,the rats were intraperitoneally injected with 1 mL aniracetam(0.75 mg/mL),three times a day.The Bederson behavioral test was used to assess palsy in the contralateral limbs.Western blot assay was used to examine the expression levels of Nestin and basic fibroblast growth factor in the basal ganglia.Immunohistochemistry was performed to count the number of Nestin-and glial cell line-derived neurotrophic factor-positive cells in the basal ganglia.Acupuncture effectively reduced hemorrhage and brain edema,elevated the expression levels of Nestin and basic fibroblast growth factor in the basal ganglia,and increased the number of Nestin-and glial cell line-derived neurotrophic factor-positive cells in the basal ganglia.Together,these findings suggest that acupuncture promotes functional recovery after cerebral hemorrhage by increasing the expression of neurotrophic factors.The study was approved by the Committee for Experimental Animals of Heilongjiang Medical Laboratory Animal Center(approval No.2017061001)on June 10,2017.Dan Li Qiu-Xin Chen Wei Zou Xiao-Wei Sun Xue-Ping Yu Xiao-Hong Dai Wei Teng 2020Neural Regeneration Research2020,15,8:24
9Ten cities cross-sectional questionnaire survey of children asthma and other allergies in China显示文摘Asthma,rhinitis and eczema(allergic or non-allergic)have increased throughout the world during the last decades,especially among children.Changes in the indoor environment are suspected to be important causes.China has experienced a dramatic change in indoor environmental exposures during the past two decades.However,such changes and their associations with children’s asthma and other health aspects have not been thoroughly studied.China,Children,Homes,Health(CCHH),Phase I,was a cross-sectional questionnaire survey of 48219 children 1–8 years old in 10 Chinese cities during 2010–2012.The questionnaire includes the International Study of Asthma and Allergies in Childhood(ISAAC)core health questions and additional questions regarding housing,life habits and outdoor environment.In health analyses,children aged 3–6 years old were included.The prevalences of doctor diagnosed asthma varied from 1.7%to 9.8%(mean 6.8%),a large increase from 0.91%in 1999 and 1.50%in2000.The prevalence of wheeze,rhinitis and atopic eczema(last 12 months)varied from 13.9%to 23.7%,24.0%to 50.8%and4.8%to 15.8%,respectively.Taiyuan had the lowest prevalences of all illnesses and Shanghai the highest,except for wheezewhere the highest value was for Urumqi.We found(1)no obvious association between disease prevalences and ambient PM10concentrations and(2)higher prevalences of disease in humid climates with hot summers and cold winters,but with no centrally heated buildings.Associations between the diseases and economic status as indexed by Gross Domestic Product(GDP)requires further study.ZHANG YinPing LI BaiZhan HUANG Chen YANG Xu QIAN Hua DENG QiHong ZHAO ZhuoHui LI AnGui ZHAO JiaNing ZHANG Xin QU Fang HU Yu YANG Qin WANG Juan ZHANG Ming WANG Fang ZHENG XiaoHong LU Chan LIU ZhiJian SUN YueXia MO JinHan ZHAO YiLi LIU Wei WANG TingTing NORBCK Dan BORNEHAG Carl-Gustaf SUNDELL Jan 2013Chinese Science Bulletin2013,58,34:22
10Somatosensory neuron types identified by high-coverage single-cell RNA-sequencing and functional heterogeneity显示文摘感觉神经原被不同发信号的网络和接受特征区分。因此,感觉神经原类型能被连接基于 transcriptome 的神经原与感觉显型打字定义。这里,我们分类老鼠的 somatosensory 神经原由高范围的单个房间的定序 RNA 的背面的根中心(DRG )(10 950 ±1 218 基因每神经原) 并且神经原基于尺寸的层次聚类。而且,对皮肤的刺激作出回应的单个 DRG 神经原被记录用一在里面 vivo 整个房间的补丁夹钳技术并且由神经原类型分类基因标记。小直径 DRG 神经原被分类进低阀值的 mechanoreceptor 的一种类型和 mechanoheat nociceptors (MHN ) 的五种类型。每 MHN 类型进一步被分成二种子类型。大 DRG 神经原被分成四种类型,包括表示联系 BAI1 的蛋白质 2-like 的 neurexophilin 1 快车 MHN 和机械 nociceptors (MN ) 1 (Baiap2l1 ) 。表示 trafficking 蛋白质粒子建筑群 3-like 和 Baiap2l1 显著的 MN 的 Mechanoreceptors 各被细分进二种子类型。这些结果为编目 somatosensory 神经原和他们的 transcriptome 数据库提供一个新系统。Chang-Lin Li Kai-Cheng Li Dan Wu Yan Chen Hao Luo Jing-Rong Zhao Sa-Shuang Wang Ming-Ming Sun Ying-Jin Lu Yan-Qing Zhong Xu-Ye Hu Rui Hou Bei-Bei Zhou Lan Bao Hua-Sheng Xiao Xu Zhang 2016Cell Research2016,26,1:21
11One-step generation of complete gene knockout mice and monkeys by CRISPR/Cas9-mediated gene editing with multiple sgRNAs显示文摘CRISPR/Cas9 系统是一个有效编辑基因的方法,但是编辑基因的动物的多数显示出 mosaicism,与编辑仅仅在房间的部分发生。这里,我们证明那单个基因或多重基因能被 Cas9 mRNA 和多重邻近的单个指南的 RNA 的 zygotic 注射完全在老鼠和猴子胚胎击倒(spaced 10-200 bp 分开) 指向仅仅一把单个钥匙每基因的 exon。个别地在 Y 染色体上跟随八基因的指向的删除的 F0 老鼠的 Phenotypic 分析在产生猛烈老鼠表明了这条途径的坚韧性。重要地,这条途径在高效率交付完全的基因大美人(Arntl 上的 100% 并且 91% 在 Prrt2 上) 在猴子胚胎。最后,我们能在一个单个步骤产生一只完全的 Prrt2 猛烈猴子,表明在很快建立编辑基因的猴子模型的这条途径的实用性。Erwei Zuo Yi-Jun Cai Kui Li Yu Wei Bang-An Wang Yidi Sun Zhen Liu Jiwei Liu Xinde Hu Wei Wei Xiaona Huo Linyu Shi Cheng Tang Dan Liang Yan Wang Yan-Hong Nie Chen-Chen Zhang Xuan Yao Xing Wang Changyang Zhou Wenqin Ying Qifang Wang Ren-Chao Chen Qi Shen Guo-Liang Xu Jinsong Li Qiang Sun Zhi-Qi Xiong Hui Yang 2017Cell Research2017,27,7:21
12Optimal performance of a generalized irreversible four-reservoir isothermal chemical potential transformer显示文摘A new cyclic model of a four-reservoir isothermal chemical potential transformer with irreversible mass transfer, mass leakage and internal dissipation is put forward in this paper. The optimal relation be-tween the coefficient of performance (COP) and the rate of energy pumping of the generalized irre-versible four-reservoir isothermal chemical potential transformer has been derived by using finite-time thermodynamics or thermodynamic optimization. The maximum COP and the corresponding rate of energy pumping, as well as the maximum rate of energy pumping and the corresponding COP, have been obtained. Moreover, the influences of the irreversibility on the optimal performance of the iso-thermal chemical potential transformer have been revealed. It was found that the mass leakage affects the optimal performance both qualitatively and quantitatively, while the internal dissipation affects the optimal performance quantitatively. The results obtained herein can provide some new theoretical guidelines for the optimal design and development of a class of isothermal chemical potential trans-formers, such as mass exchangers, electrochemical, photochemical and solid state devices, fuel pumps, etc.XIA Dan CHEN LinGen SUN FengRui 2008Science China Chemistry2008,51,10:20
13Understanding the genetic and epigenetic architecture in complex network of rice flowering pathways显示文摘尽管 flowering 时间控制的分子的基础很好在长天(LD ) 内被把,种 Arabidopsis,它在短天(SD ) 内大部分仍然是未知的植物米饭。瑞斯 flowering 时间(标题日期) 是为季节改编和谷物产量的一个重要农学的特点,它被基因、环境的因素影响。在最后十年期间,作为被识别的、著名进步在探索上被取得了的成花素的性质,成花素基因表示怎么样,遗传上控制。然而,在象 FLOWERING 那样的某些关键 flowering 综合者的 Arabidopsis 表示,地点 C (FLC ) 和 FLOWERING 地点 T (英尺) 被各种各样的染色质修正 epigenetically 也调整几乎不在这个方面上在米饭被知道直到很最近。这评论在米饭 flowering 时间控制总结了基因网络和染色质修正的进展,试图给一个完全的看法基因并且在米饭 flowering 小径的复杂网络的 epigenetic 建筑学。Changhui Sun Dan Chen Jun Fang Pingrong Wang Xiaojian Deng Chengcai Chu 2014Protein & Cell2014,5,12:19
14Exploring an Integrative Therapy for Treating COVID-19:A Randomized Controlled Trial显示文摘Objectives:To develop a new Chinese medicine(CM)-based drug and to evaluate its safety and effect for suppressing acute respiratory distress syndrome(ARDS)in COVID-19 patients.Methods:A putative ARDS-suppressing drug Keguan-1 was first developed and then evaluated by a randomized,controlled two-arm trial.The two arms of the trial consist of a control therapy(alpha interferon inhalation,50(x g twice daily;and lopinavir/ritonavir,400 and 100 mg twice daily,respectively)and a testing therapy(control therapy plus Keguan-119.4 g twice daily)by random number table at 1:1 ratio with 24 cases each group.After 2-week treatment,adverse events,time to fever resolution,ARDS development,and lung injury on newly diagnosed COVID-19 patients were assessed.Results:An analysis of the data from the first 30 participants showed that the control arm and the testing arm did not exhibit any significant differences in terms of adverse events.Based on this result,the study was expanded to include a total of 48 participants(24 cases each arm).The results show that compared with the control arm,the testing arm exhibited a significant improvement in time to fever resolution(P=0.035),and a significant reduction in the development of ARDS(P=0.048).Conclusions:Keguan-1-based integrative therapy was safe and superior to the standard therapy in suppressing the development of ARDS in COVID-19 patients.(Trial registration No.NCT 04251871 at www.clinicaltrials.gov).WANG Jia-bo WANG Zhong-xia JING Jing ZHAO Peng DONG Jing-hui ZHOU Yong-feng YANG Guang NIU Ming ZHAO Xu JIANG Tian-jun Bl Jing-feng XU Zhe ZHANG Ping WU Dan BAI Zhao-fang GUO Yu-ming YU Si-miao SUN Yong-qiang ZHANG Zi-teng ZHAN Xiao-yan LI Peng-yan DING Jin-biao ZHAO Peng-fei SONG Xue-ai TANG Jian-yuan HE Dong-chu CHEN Zhu QIN En-qiang WANG Rui-lin XIAO Xiao-he 2020Chinese Journal of Integrative Medicine2020,26,9:18
15Organic anion transporting polypeptide-1B1 haplotypes in Chinese patients显示文摘瞄准:在搬运 polypeptide-1B1 的器官的阴离子检测 388G >A 和 521T >C 变体等位基因(OATP1B1,编码基因 SLCO1B1 ) 基因。方法:111 个健康志愿者在我们的学习为 OATP1B1 等位基因被屏蔽。PCR 限制碎片长度多型性被用来鉴别 388G >A 多型性和一个 1 步 tetra 教材方法为 521T >C 变化的决心被开发。结果:在中国人口的 388G >A 和 521T >C 变体等位基因的频率分别地是 73.4% 和 14.0% 。SLCO1B1 *1b 和 *15 haplotypes 的频率分别地是 59.9% 和 14.0% 。结论:SLCO1B1 *1b 和 SLCO1B1 *15 变体在中国人口是相对普通的。他们的频率类似于那在从那在白种人和黑人日本,却显著地不同。Lin-yong XU Yi-jing HE Wei ZHANG Sheng Deng Qing LI Wei-xia ZHANG Zhao-qian LIU Dan WANG Yuan-fei HUANG Hong-hao ZHOU Zhen-qiu SUN 2007Acta Pharmacologica Sinica2007,28,10:18
16Effective gene editing by high-fidelity base editor 2 in mouse zygotes显示文摘通过相应再结合的指向的点 mutagenesis 广泛地在基因研究被使用了并且为在病人修理引起疾病的变化保持可观的诺言。然而,象 mosaicism 那样的问题和低 mutagenesis 效率继续提出挑战到如此的途径的临床的申请。最近,一个基础编辑器() 在 cytidine (C) 脱氨基酶上造的系统和 CRISPR/Cas9 技术在植物,酵母,和人的房间为指向的点 mutagenesis 作为一个其他的方法被开发。然而,基础编辑器高效地在 deamination 窗口中把 C 变换成 thymidine (T) 是否指向了在鼠标胚胎的基础编辑,仍然保持不清楚是可行的。在这份报告,我们产生了基础编辑的一个修改高保真版本 2 (HF2-BE2 ) ,并且调查了它在老鼠胚胎编辑功效的底。我们发现 HF2-BE2 能高效地把 C 变换成 T,与直到在老鼠胚胎的 100% biallelic 变化效率。不同于 BE3, HF2-BE2 能在目标和非目标海滨上把 C 变换成 T,扩展基础编辑器的编辑范围。令人惊讶地,我们发现 HF2-BE2 能也使脱去氨基对 gRNA 有约束力的区域近似的 C。一起拿,我们的工作表明由基础编辑,和下划线在鼠标产生点变化的可行性小心地优化编辑系统以便消除近似地点的 deamination 的底的需要。Puping Liang Hongwei Sun Ying Sun Xiya Zhang Xiaowei Xie Jinran Zhang zhen Zhang Yuxi Chen Chenhui Ding Yuanyan Xiong Wenbin Ma Dan Liu Junjiu Huang Zhou Songyang 2017Protein & Cell2017,8,8:17
17STAT-3 correlates with lymph node metastasis and cell survival in gastric cancer显示文摘AIM:To investigate the correlation between gastric cancer growth and signal transducer and activator of transcription-3(STAT3) expression.METHODS:We assessed the expressions of STAT3,phosphor-STAT3(pSTAT3),suppressor of cytokine signaling-1(SOCS-1),survivin and Bcl-2 in gastric cancer patients after gastrectomy by immunohistochemical method.In addition,in situ hybridization was used to further demonstrate the mRNA expression of STAT3 in gastric cancer.RESULTS:With the univariate analysis,expressions of STAT3,pSTAT3,SOCS-1,survivin and Bcl-2,the size of primary tumor and the lymph node metastasis were found to be associated with the overall survival(OS) of gastric cancer patients.However,only pSTAT3 expression and the lymph node metastasis were identified as the independent factors of OS of gastric cancer with multivariate analysis.STAT3 expression was correlated with the lymph node metastasis.There were positive correlations between expressions of STAT3,survivin,Bcl-2 and pSTAT3 in gastric cancer,whereas there was negative correlation between STAT3 expression and SOCS-1 expression in gastric cancer.CONCLUSION:STAT3 can transform into pSTAT3 to promote the survival and inhibit the apoptosis of gastric cancer cells.SOCS-1 might be the valid molecular antagonist to inhibit the STAT3 expression in gastric cancer.Jing-Yu Deng Xiang-Yu Liu Han Liang Dan Sun Yi Pan 2010World Journal of Gastroenterology2010,16,42:16
18MiR-30a Positively Regulates the Inflammatory Response of Microglia in Experimental Autoimmune Encephalomyelitis显示文摘Multiple sclerosis(MS) is a classical inflammatory demyelinating disease of the central nervous system(CNS). Microglia are the main resident immune cells in the CNS and are closely associated with the pathogenesis of MS.In the present study, we found that mi R-30 a was highly expressed in jellyfish-like microglia in chronic active lesions of MS patients, as well as in the microglia of mice with experimental autoimmune encephalomyelitis(EAE) at the chronic phase. In vitro, the conditioned supernatant of mouse microglia overexpressing miR-30 a promoted the apoptosis of oligodendrocyte precursor cells(OPCs), and inhibited OPC differentiation. In vivo, overexpressing miR-30 a in transplanted microglia exacerbated the progression of EAE.Overexpression and knock-down experiments in primary cultured mouse microglia showed that mi R-30 a increased the expression of IL-1 b and i NOS, which are pro-inflammatory, while inhibiting the expression of Ym-1 and CD206.Mechanistically, mi R-30 a inhibited the expression of Ppargc1 b, which is the co-activator of peroxisome proliferator-activated receptor gamma, resulting in pro-inflammatory effects. Our work shows that mi R-30 a is an important regulator of the inflammatory response in microglia, and may be a promising therapeutic target for inflammatory diseases like MS in the CNS.Xue Fang Dingya Sun Zhihong Wang Zhongwang Yu Weili Liu Yingyan Pu Dan Wang Aijun Huang Mingdong Liu Zhenghua Xiang Cheng He Li Cao 2017Neuroscience Bulletin2017,33,6:16
19Enhancing photocatalytic performance by constructing ultrafine TiO2 nanorods/g-C3N4 nanosheets heterojunction for water treatment显示文摘Photocatalysis is considered to be a clean, green and efficient method to purify water. In this report, we first developed a highly efficient ultrafine TiO_2 nanorods/g-C3 N4 nanosheets(TiO_2 NR/CN NS) composites via a simple hydrothermal method. Tiny TiO_2 nanorods(diameter:~1.5 nm and length:~8.3 nm) were first loaded in situ on the CN NS by adding graphitic carbon nitride(g-C3 N4) to the reaction solution.The TiO_2 NR/CN NS composites present high charge separation efficiency and broader light absorbance than P25 TiO_2. Furthermore, we illustrate that the Ti0_2 NR/CN NS catalyst possesses high performance for the photocatalytic degradation of the common and stubborn pollutants in water, such as the rhodamine B(RhB) dye and phenol. Under visible light(λ> 420 nm) irradiation, the apparent rate of the TiO_2 NR/CN NR is 172 and 41 times higher than that of the P25 TiO_2 and TiO_2 NR, respectively.Additionally, we speculated that the heterojunction formed between TiO_2 NR and CN NS, which is the basis for the experiments we have designed and the corresponding results. We demonstrated that reactive oxidative species such as superoxide anion radical and holes play critical roles in the degradation,and the hydroxyl radical contributes nothing to the degradation.Shiliang Luan Dan Qu Li An Wenshuai Jiang xiang Gao Shixin Hua Xiang Miao Yuanjing Wen Zaicheng Sun 2018Science Bulletin2018,63,11:16
20MiR-27a Promotes Hepatocellular Carcinoma Cell Proliferation Through Suppression of its Target Gene Peroxisome Proliferator-activated Receptor γ显示文摘Shuo Li Jing Li Bing-Yuan Fei Dan Shao Yue Pan Zhan-Hao MO Bao-Zhen Sun Dan Zhang Xiao Zheng Ming Zhang Xue-Wen Zhang Li Chen 2015Chinese Medical Journal2015,,7:15
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