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| 1 | Multiple genetic alterations and behavior of cellular biology in gastric cancer and other gastric mucosal lesions:H.pylori infection,histological types and staging显示文摘AIM To investigate the expression of multiplegenes and the behavior of cellular biology ingastric cancer(GC)and other gastric mucosallesions and their relations to Helicobacter pylori(H.pylori)infection,tumor staging andhistological subtypes.METHODS Three hundred and twenty-sevenspecimens of gastric mucosa obtained viaendoscopy or surgical resection,and ABCimmunohistochemical staining were used todetect the expression of p53,p16,Bcl-2 andCOX-2 proteins.H.pylori was determined byrapid urea test combined with pathologicalstaining or14C urea breath test.Cellular image analysis was performed in 66 patients withintestinal metaplasia(IM)and/or dysplasia(Dys).In 30 of them,both cancer and theparacancerous tissues were obtained at the timeof surgery.Histological pattern,tumor staging,lymph node metastasis,grading ofdifferentiation and other clinical data werestudied in the medical records.RESULTS p16 expression of IM or Dys wassignificantly lower in positive H.pylori chronicatrophic gastritis(CAG)than those withnegative H.pylori(CAG:54.8% vs 88.0%,IM:34.4% vs 69.6%,Dys:23.8% vs 53.6%,allP<0.05),Bcl-2 or COX-2 expression of IM orDys in positive H.pylori cases was significantlyhigher than that without H.pylori(Bcl-2:68.8%vs23.9%,90.5% vs 60.7%;COX-2:50.0% vs10.8%,61.8% vs 17.8%;all P<0.05).Themean number of most parameters of cellularimage analysis in positive H.pylori group wassignificantly higher than that in negative H.pylori group(Ellipser:53±14,40±12μm,Area1:748±572,302±202 μm2,Area2:3050±1661,1681±1990 μm2,all P<0.05;Ellipseb:79±23,58±15 μm,Ratio1:22%±5%,13%±4%,Ratio2:79%±17%,53%±20%,all P<0.01).There was significant correlation between Bcl-2and histologic pattern of gastric carcinoma,andbetween COX-2 and tumor staging or lymph nodemetastasis(Bcl-2:75.0% vs 16.7%;COX-2:76.0% vs 20.0%,79.2% vs 16.7%;allP<0.05).CONCLUSION p1l6, Bcl-2, and COX-2 but not p53 gene may play a role in the early genesis/ progression of gastric carcinoma and are associated with H. pylori infection. p53 gene is relatively late event in gastric tumorigenesis and mainly relates to its progression. There is more cellular-biological behavior of malignant tumor in gastric mucosal lesions with H. pylori infection. Aberrant Bcl-2 protein expression appears to be preferentially associated with the intestinal type cancer. COX-2 seems to be related to tumor staging and lymph node metastasis. | Heng Jun Gao Lian Zhen Yu Jian Feng Bai Yan Shen Peng Gu Sun Han Lin Zhao Kun Miu Xiu Zhen Lü Xiao Yong Zhang Zhi Quan Zhao | 2000 | World Journal of Gastroenterology2000,6,6: | 52 |
| 2 | Anisotropic coding metamaterials and their powerful manipulation of differently polarized terahertz waves显示文摘Metamaterials based on effective media can be used to produce a number of unusual physical properties(for example,negative refraction and invisibility cloaking)because they can be tailored with effective medium parameters that do not occur in nature.Recently,the use of coding metamaterials has been suggested for the control of electromagnetic waves through the design of coding sequences using digital elements‘0’and‘1,'which possess opposite phase responses.Here we propose the concept of an anisotropic coding metamaterial in which the coding behaviors in different directions are dependent on the polarization status of the electromagnetic waves.We experimentally demonstrate an ultrathin and flexible polarization-controlled anisotropic coding metasurface that functions in the terahertz regime using specially designed coding elements.By encoding the elements with elaborately designed coding sequences(both 1-bit and 2-bit sequences),the x-and y-polarized waves can be anomalously reflected or independently diffused in three dimensions.The simulated far-field scattering patterns and near-field distributions are presented to illustrate the dual-functional performance of the encoded metasurface,and the results are consistent with the measured results.We further demonstrate the ability of the anisotropic coding metasurfaces to generate a beam splitter and realize simultaneous anomalous reflections and polarization conversions,thus providing powerful control of differently polarized electromagnetic waves.The proposed method enables versatile beam behaviors under orthogonal polarizations using a single metasurface and has the potential for use in the development of interesting terahertz devices. | Shuo Liu Tie Jun Cui Quan Xu Di Bao Liangliang Du Xiang Wan Wen Xuan Tang Chunmei Ouyang Xiao Yang Zhou Hao Yuan Hui Feng Ma Wei Xiang Jiang Jiaguang Han Weili Zhang Qiang Cheng | 2016 | Light(Science & Applications)2016,5,1: | 36 |
| 3 | An Investigation of Oxidative DNA Damage in Pharmacy Technicians Exposed to Antineoplastic Drugs in Two Chinese Hospitals Using The Urinary 8-OHdG Assay显示文摘Objective To investigate oxidative DNA damage in pharmacy technicians preparing antineoplastic drugs at the PIVAS (Pharmacy Intravenous Admixture Service) in two Chinese hospitals.Methods Urinary 8-OHdG served as a biomarker.5-Fluorouracil (5-FU) concentrations in air,masks and gloves were determined.The spill exposure of each PIVAS technician to antineoplastic drugs was investigated.Eighty subjects were divided into exposed group I,II,and control group I,II.Results 5-FU concentration ratios for gloves and masks in exposed group I were significantly higher than those in exposed group II (P<0.05 or P<0.01).The average urinary 8-OHdG concentrations in exposed group I,control group I,exposed group II,and control group II were 14.69±0.93,10.68±1.07,10.57±0.55,and 11.96±0.73 ng/mg Cr,respectively.Urinary 8-OHdG concentration in exposed group I was significantly higher than that in control group I or that in exposed group II (P<0.01).There was a significant correlation between urinary 8-OHdG concentrations and spill frequencies per technician (P<0.01).Conclusion There was detectable oxidative DNA damage in PIVAS technicians exposed to antineoplastic drugs.This oxidative DNA damage may be associated with their spill exposure experience and contamination of their personal protective equipment. | HUANG Yu Wen JIAN Le ZHANG Mei Bian ZHOU Quan YAN Xiao Feng HUA Xu Dong ZHOU Ying HE Ji Liang | 2012 | Biomedical and Environmental Sciences2012,25,1: | 30 |
| 4 | Baicalin induces ferroptosis in bladder cancer cells by downregulating FTH1显示文摘Ferroptosis is a non-apoptotic regulated cell death caused by iron accumulation and subsequent lipid peroxidation.Currently,the therapeutic role of ferroptosis on cancer is gaining increasing interest.Baicalin an active component in Scutellaria baicalensis Georgi with anticancer potential various cancer types;however,the effects of baicalein on bladder cancer and the underlying molecular mechanisms remain largely unknown.In the study,we investigated the effect of baicalin on bladder cancer cells5637 and KU-19-19.As a result,we show baicalin exerted its anticancer activity by inducing apoptosis and cell death in bladder cancer cells.Subsequently,we for the first time demonstrate baicalin-induced ferroptotic cell death in vitro and in vivo,accompanied by reactive oxygen species(ROS) accumulation and intracellular chelate iron enrichment.The ferroptosis inhibitor deferoxamine but not necrostatin-1,chloroquine(CQ),N-acetyl-L-cysteine,L-glutathione reduced,or carbobenzoxy-valyl-alanyl-aspartyl-[O-methyl]-fluoromethylketone(Z-VAD-FMK) rescued baicalin-induced cell death,indicating ferroptosis contributed to baicalin-induced cell death.Mechanistically,we show that ferritin heavy chain1(FTH1) was a key determinant for baicalin-induced ferroptosis.Overexpression of FTH1 abrogated the anticancer effects of baicalin in both 5637 and KU19-19 cells.Taken together,our data for the first time suggest that the natural product baicalin exerts its anticancer activity by inducing FTH1-dependent ferroptosis,which will hopefully provide a prospective compound for bladder cancer treatment. | Na Kong Xiaying Chen Jiao Feng Ting Duan Shuiping Liu Xueni Sun Peng Chen Ting Pan Lili Yan Ting Jin Yu Xiang Quan Gao Chengyong Wen Weirui Ma Wencheng Liu Mingming Zhang Zuyi Yang Wengang Wang Ruonan Zhang Bi Chen Tian Xie Xinbing Sui Wei Tao | 2021 | Acta Pharmaceutica Sinica B2021,11,12: | 23 |
| 5 | Modeling rock specimens through 3D printing: Tentative experiments and prospects显示文摘Current developments in 3D printing (3DP) technology provide the opportunity to produce rock-like specimens and geotechnical models through additive manufacturing, that is, from a file viewed with a computer to a real object. This study investigated the serviceability of3 DP products as substitutes for rock specimens and rock-type materials in experimental analysis of deformation and failure in the laboratory. These experiments were performed on two types of materials as follows:(1) compressive experiments on printed sand-powder specimens in different shapes and structures, including intact cylinders, cylinders with small holes, and cuboids with pre-existing cracks, and(2) compressive and shearing experiments on printed polylactic acid cylinders and molded shearing blocks. These tentative tests for 3DP technology have exposed its advantages in producing complicated specimens with special external forms and internal structures, the mechanical similarity of its product to rock-type material in terms of deformation and failure, and its precision in mapping shapes from the original body to the trial sample(such as a natural rock joint). These experiments and analyses also successfully demonstrate the potential and prospects of 3DP technology to assist in the deformation and failure analysis of rock-type materials, as well as in the simulation of similar material modeling experiments. | Quan Jiang Xiating Feng Lvbo Song Yahua Gong Hong Zheng Jie Cui | 2016 | Acta Mechanica Sinica2016,32,1: | 19 |
| 6 | Joint Radar and Communication: A Survey显示文摘Joint radar and communication(JRC)technology has become important for civil and military applications for decades.This paper introduces the concepts,characteristics and advantages of JRC technology,presenting the typical applications that have benefited from JRC technology currently and in the future.This paper explores the state-of-the-art of JRC in the levels of coexistence,cooperation,co-design and collaboration.Compared to previous surveys,this paper reviews the entire trends that drive the development of radar sensing and wireless communication using JRC.Specifically,we explore an open research issue on radar and communication operating with mutual benefits based on collaboration,which represents the fourth stage of JRC evolution.This paper provides useful perspectives for future researches of JRC technology. | Zhiyong Feng Zixi Fang Zhiqing Wei Xu Chen Zhi Quan Danna Ji | 2020 | China Communications2020,17,1: | 19 |
| 7 | Tissue clearing of both hard and soft tissue organs with the PEGASOS method显示文摘织物空地技术由转织物在 3 尺寸(3-D ) 启用不透明的机关和纸巾的可视化透明。当前的组织空地方法被能与每个单个协议被清除的纸巾的有限类型限制,它不可避免地导致了存在在整个身体或身体部分成像以内盲点。包括骨头和牙齿的难纸巾仍然是要清除的最困难的机关。另外,内长的荧光的损失为基于溶剂的空地方法仍然是一颗主要担心。这里,我们发展了聚乙烯乙二醇(木钉) 联系了溶剂系统(PEGASOS ) ,它将近显示了纸巾的所有类型透明、保存的内长的荧光。骨头和牙齿能被转在变清以后将近不可见。PEGASOS 方法转了透明的整个成年老鼠身体,我们对一个成年老鼠头骨头,牙齿,大脑,肌肉,和其它填写了的图象有能力没有盲目区域的纸巾。难织物透明性使我们能重建在 3-D 的未经触动的上颚,牙齿,腿节,或膝关节。另外,我们在长距离上在亚 cellular 分辨率并且到踪迹个人神经原和轴突管理了未经触动的鼠标大脑到图象。我们也通过 vertebrae 直接设想了背面的根中心。最后,我们在长骨头的髓空间以内在 3-D 揭示了神经网络的分发模式。这些结果建议 PEGASOS 方法是为一般生物医学的研究的一个有用工具。 | Dian Jing Shiwen Zhang Wenjing Luo Xiaofei Gao Yi Men Chi Ma Xiaohua Liu Yating Yi Abhijit Bugde Bo O. Zhou Zhihe Zhao Quan Yuan Jian Q. Feng Liang Gao Woo-Ping Ge Hu Zhao | 2018 | Cell Research2018,28,8: | 18 |
| 8 | A small natural molecule promotes mitochondrial fusion through inhibition of the deubiquitinase USP30显示文摘Mitochondrial 熔化是为正常 mitochondrial 功能和 mitochondrial DNA 继承混合并且统一 mitochondrial 分隔空间的一个高度协调的过程。Dysregulated mitochondrial 熔化原因 mitochondrial 破碎,反常 mitochondrial 生理学和继承,并且有原因地与很多 neuronal 疾病被连接了。这里,我们识别了 potently 导致了 mitochondrial 熔化在在 Mfn1 或 Mfn2 是缺乏的房间恢复 mitochondrial 网络和氧化呼吸的 diterpenoid 衍生物 15-oxospiramilactone (S3 ) 。线粒体局部性的 deubiquitinase USP30 是 S3 的一个目标。由 S3 的 USP30 的抑制导致 Mfn1/2 的 non-degradative ubiquitination 的增加,它提高 Mfn1 和 Mfn2 活动并且支持 mitochondrial 熔化。通过 USP30 的一个禁止者的使用,因此,我们的学习揭开在支持 mitochondrial 的 Mfns 的 non-degradative ubiquitination 的异乎寻常的功能熔化。 | Wen Yue Ziheng Chen HaiYang Li Chen Yan Ming Chen Du Feng Chaojun Yan Hao Wu Lei Du Yueying Wang Jinhua Liu Xiaohu Huang Laixin Xia Lei Liu Xiaohui Wang Haijing Jin Jun Wang Zhiyin Song Xiaojiang Hao Quan Chen | 2014 | Cell Research2014,24,4: | 18 |
| 9 | Sequencing of PCR amplified HBV DNA pre-c and c regions in 2.2.15 cells and antiviral action by targeted antisense oligonucleotide directed against sequence显示文摘INTRODUCTIONManystudieshaveshownthatantisenseoligonucleotides(ASONs)canefficientlyinhibitHBVDNAreplicationandexpresioninvitro... | ZHOUG Sen 1, WEN Shou Ming 2, ZHANG Ding Feng 3, WANG Quan Li 4, WANG Seng Qi 4 and REN Hong 3 | 1998 | World Journal of Gastroenterology1998,4,5: | 16 |
| 10 | P2RX7 sensitizes Mac-1/ICAM-1-dependent leukocyte- endothelial adhesion and promotes neurovascular injury during septic encephalopathy显示文摘 | Huan Wang Ling-Juan Hong Ji-Yun Huang Quan Jiang Rong-Rong Tao Chao Tan Nan-Nan Lu Cheng-Kun Wang Muhammad M Ahmed Ying-Mei Lu Zhi-Rong Liu Wei-Xing Shi En-Yin Lai Christopher S Wilcox Feng Han | 2015 | Cell Research2015,25,6: | 16 |
| 11 | Immunohistochemical detection of proliferating cell nuclear antigen in hepatocellular carcinoma显示文摘ImmunohistochemicaldetectionofproliferatingcelnuclearantigeninhepatocelularcarcinomaWANGDong1,SHIJingQuan2andLIUFengXuan3Su... | WANG Dong 1, SHI Jing Quan 2 and LIU Feng Xuan 3 | 1997 | World Journal of Gastroenterology1997,3,2: | 15 |
| 12 | In situ experiments on width and evolution characteristics of excavation damaged zone in deeply buried tunnels显示文摘The seven long tunnels of Jinping II hydropower station are deeply buried.The width and evolution characteristics of excavation damaged zone(EDZ) are the key problem to the design of tunnels excavation and supports.In order to study this problem,several specific experimental tunnels with different overburden and geometric sizes were excavated at this site.Digital borehole camera,sliding micrometer,cross-hole acoustic wave equipment and acoustic emission apparatus were adopted.This paper introduced the comprehensive in situ experimental methods through pre-installed facilities and pre-drilled boreholes.Typical properties of the surrounding rock mass,including cracks,deformation,elastic wave and micro fractures,were measured during the whole process of the tunnel excavation.The width and characteristics of formation and evolution of tunnels EDZ were analyzed under different construction methods involving of TBM and drilling and blasting,the test tunnels were excavated by full-face or two benches.The relationships between EDZ and tunnel geometry sizes,overburden and excavation method were described as well.The results will not only contribute a great deal to the analysis of rock mass behavior in deeply buried rock mass,but also provide direct data for support design and rockburst prediction. | LI ShaoJun 1,FENG XiaTing 1,LI ZhanHai 3,CHEN BingRui 1,JIANG Quan 1,WU ShiYong 2,HU Bin 2 &XU JinSong 2 1 State Key Laboratory of Geomechanics and Geotechinical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,China 2 Ertan Hydropower Development Company,Ltd.,Chengdu 610051,China 3 School of Resources and Civil Engineering,Northeastern University,Shenyang 110004,China | 2011 | Science China(Technological Sciences)2011,54,S1: | 13 |
| 13 | Efficacy analysis of flexible neuroendoscopy combined with dry-field techniques in the treatment of chronic subdural hematoma显示文摘Chronic subdural hematoma (CSDH) is a common and frequently occurring disease in neurosurgery, whose incidence accounts for around 10% of all intracranial hematomas. There have been many theories about the mechanism of CSDH, including acute subdural hematoma, slow hemorrhage after bridge vein injury, and traumatic subdural effusion evolution With improvements in medical imaging technology and related basic research, the perception of CSDH as an inflammatory vascular proliferative disease has gradually reached consensus In addition to head trauma, brain atrophy leading to expanded subdural space is the premise and primary reason for the occurrence of CSDH in the older adult population. | Feng Guan Wei-Cheng Peng Hui Huang Bin Dai Guang-Tong Zhu Zhi-Yong Xiao Bei-Bei Mao Zhen-Yang Lin Quan Zhou Ya-Ping Wei Zhi-Qiang Hu | 2019 | Chinese Medical Journal2019,,11: | 12 |
| 14 | SbHKT1;4, a member of the high‐affinity potassium transporter gene family from Sorghum bicolor, functions to maintain optimal Na^+/K^+ balance under Na^+ stress显示文摘In halophytic plants, the high‐affinity potassium transporter HKT gene family can selectively uptake Kt in the presence of toxic concentrations of Nat. This has so far not been well examined in glycophytic crops. Here, we report the characterization of SbHKT1;4, a member of the HKT gene family from Sorghum bicolor. Upon Nat stress, SbHKT1;4 expression was more strongly upregulated in salt‐tolerant sorghum accession, correlating with a better balanced Nat/ Kt ratio and enhanced plant growth. Heterogeneous expression analyses in mutants of Saccharomyces cerevisiae and Arabidopsis thaliana indicated that overexpressing SbHKT1;4 resulted in hypersensitivity to Nat stress, and such hypersensitivity could be alleviated with the supply of elevated levels of Kt, implicating that SbHKT1;4 may mediate Kt uptake in the presence of excessive Nat. Further electrophysiological evidence demonstrated that SbHKT1;4 could transport Nat and Kt when expressed in Xenopus laevis oocytes. The relevance of the finding that SbHKT1;4 functions to maintain optimal Nat/Kt balance under Nat stress to the breeding of salt‐tolerant glycophytic crops is discussed. | Tian‐Tian Wang Zhi‐Jie Ren Zhi‐Quan Liu Xue Feng Rui‐Qi Guo Bao‐Guo Li Le‐Gong Li Hai‐Chun Jing | 2014 | Journal of Integrative Plant Biology2014,56,3: | 11 |
| 15 | Effect of High Suspension and Low Incision Surgery Based on Traditional Ligation of Chinese Medicine in Treatment of Mixed Haemorrhoids:A Multi-centre,Randomized,Single-Blind,Non-inferiority Clinical Trial显示文摘Objective:To observe the clinical effect of high suspension and low incision(HSLI)surgery on mixed haemorrhoids,compared with Milligan-Morgan haemorrhoidectomy.Methods:A multi-centre,randomized,singleblind,non-inferiority clinical trial was performed.Participants with mixed haemorrhoids from Xiyuan Hospital of China Academy of Chinese Medical Sciences,Beijing Rectum Hospital,Air Force Medical Center of People's Liberation Army of China,and Puyang Hospital of Traditional Chinese Medicine were enrolled from September 2016 to March 2018.By using a blocked randomization scheme,participants were assigned to two groups.The experimental group was treated with HSLI,while the control group was treated with Milligan-Morgan haemorrhoidectomy.The primary outcome was the clinical effect evaluated at 12 weeks after operation.The secondary outcomes included the number of haemorrhoids treated during the operation,pain scores,use of analgesics,postoperative oedema,wound healing,incidence of anal stenosis,anorectal manometry after operation,as well as surgical duration,length of stay and total hospitalization expenses.A safety evaluation was also conducted.Results:In total,246 eligible participants were enrolled,with 123 cases in each group.There was no significant difference in the clinical effect between the two groups(100.00% vs.99.19%,P>0.05).Compared with the control group,the number of external haemorrhoids treated during the operation and the pain scores after operation were significantly reduced in the experimental group(P<0.05 or P<0.01);the patient number with wound healing at 2 weeks after operation and the functional length of anal canal at 12 weeks after operation were significantly increased in the experimental group(P<0.05).There was no significant difference in the incidence of anal stenosis,the numbers of patients using analgesics and patients with postoperative oedema between the two groups after operation(P>0.05).The surgical duration and length of stay in the experimental group were significantly longer than those in the control group,and the total hospitalization expense was significantly higher than that in the control group(all P<0.05).No adverse events were reported in either group during the whole trial or follow-up period.Conclusion:HSLI had the advantages of preserving the skin of anal canal completely,alleviating postsurgical pain and promoting rapid recovery after operation.(Registration No.Chi CTR1900022883). | JIA Xiao-qiang CAO Wei-wei QUAN Long-fang ZHAO Wei-bing CHENG Fang JIA Shan FENG Liu-quan WEI Xu-feng XIE Zhen-nian WANG Dong XU Chun-yan CUI Chun-hui CAI Xing-juan HE Lan-ye WANG Zhan-jun TIAN Ying SHI Shu-min SUN Si-miao SU Liang ZHAI Meng-fan | 2021 | Chinese Journal of Integrative Medicine2021,27,9: | 11 |
| 16 | Modern pollen assemblages from surface lake sediments in northwestern China and their importance as indicators of vegetation and climate显示文摘The modern pollen assemblages of surface lake sediments and topsoils in northwestern China were studied to understand the relationship of modern pollen data with contemporary vegetation and climate, and the differences between the pollen assemblages of surface lake sediments and topsoils. The results show that Chenopodiaceae and Artemisia are dominant elements in the pollen assemblages of northwestern China. Additionally, Ephedra, Cyperaceae, Asteraceae, Poaceae, Picea, Pinus, and Betula are also important pollen taxa. Both pollen assemblages and principal component analysis indicate that pollen data from surface lake sediments and topsoils can be used to differentiate the main vegetation types of this region(desert, steppe, meadow and forest). However, differences exist between modern pollen assemblages of the two types of sediments due to the different relevant source areas of pollen and degrees of pollen preservation. For example, the larger relevant source area of surface lake sediment results in a higher abundance of Betula in pollen assemblage from surface lake sediment, whereas the tendency to disintegrate thin-walled pollen types in topsoil leads to a higher proportion of resistant pollen, such as Asteraceae. Linear regression analysis indicates that the Artemisia/Chenopodiaceae(A/C) ratio in pollen assemblages of surface lake sediments can be used to indicate humidity changes in the study area. However, the A/C ratio in topsoils should be used carefully. Our results suggest that pollen data from surface lake sediments would be better references for interpreting the fossil pollen assemblages of lake cores or lacustrine profiles. | QIN Feng ZHAO Yan LI Quan CAI MaoTang | 2015 | Science China Earth Sciences2015,58,9: | 11 |
| 17 | Transcriptomic landscape regulated by the 14 types of bone morphogenetic proteins(BMPs)in lineage commitment and differentiation of mesenchymal stem cells(MSCs)显示文摘Mesenchymal stem cells(MSCs)are ubiquitously-existing multipotent progenitors that can self-renew and differentiate into multiple lineages including osteocytes,chondrocytes,adipocytes,tenocytes and myocytes.MSCs represent one of the most commonly-used adult progenitors and serve as excellent progenitor cell models for investigating lineagespecific differentiation regulated by various cellular signaling pathways,such as bone morphogenetic proteins(BMPs).As members of TGFb superfamily,BMPs play diverse and important roles in development and adult tissues.At least 14 BMPs have been identified in mammals.Different BMPs exert distinct but overlapping biological functions.Through a comprehensive analysis of 14 BMPs in MSCs,we demonstrated that BMP9 is one of the most potent BMPs in inducing osteogenic differentiation of MSCs.Nonetheless,a global mechanistic view of BMP signaling in regulating the proliferation and differentiation of MSCs remains to be fully elucidated.Here,we conducted a comprehensive transcriptomic profiling in the MSCs stimulated by 14 types of BMPs.Hierarchical clustering analysis classifies 14 BMPs into three subclusters:an osteo/chondrogenic/adipogenic cluster,a tenogenic cluster,and BMP3 cluster.We also demonstrate that six BMPs(e.g.,BMP2,BMP3,BMP4,BMP7,BMP8,and BMP9)can induce ISmads effectively,while BMP2,BMP3,BMP4,BMP7,and BMP11 up-regulate Smad-independent MAP kinase pathway.Furthermore,we show that many BMPs can upregulate the expression of the signal mediators of Wnt,Notch and PI3K/AKT/mTOR pathways.While the reported transcriptomic changes need to be further validated,our expression profiling represents the first-of-its-kind to interrogate a comprehensive transcriptomic landscape regulated by the 14 types of BMPs in MSCs. | Linghuan Zhang Qing Luo Yi Shu Zongyue Zeng Bo Huang Yixiao Feng Bo Zhang Xi Wang Yan Lei Zhenyu Ye Ling Zhao Daigui Cao Lijuan Yang Xian Chen Bin Liu William Wagstaff Russell R*Reid Hue H*Luu Rex C*Haydon Michael J*Lee Jennifer Moriatis Wolf Zhou Fu Tong-Chuan He Quan Kang | 2019 | Genes & Diseases2019,6,3: | 11 |
| 18 | MicroRNA-185-5p mediates regulation of SREBP2 expression by hepatitis C virus core protein显示文摘AIM: To investigate the molecular mechanism for regulation of cholesterol metabolism by hepatitis C virus(HCV) core protein in Hep G2 cells.METHODS: HCV genotype 1b core protein was cloned and expressed in Hep G2 cells. The cholesterol content was determined after transfection. The expression of sterol regulatory element binding protein 2(SREBP2) and the rate-limiting enzyme in cholesterol synthesis(HMGCR) was measured by quantitative real-time PCR and immunoblotting after transfection. The effects of core protein on the SREBP2 promoter and 3'-untranslated region were analyzed by luciferase assay. We used different target predictive algorithms, micro RNA(mi RNA) mimics/inhibitors, and site-directed mutation to identify a putative target of a particular mi RNA.RESULTS: HCV core protein expression in Hep G2 cells increased the total intracellular cholesterol level(4.05 ± 0.17 vs 6.47 ± 0.68, P = 0.001), and this increase corresponded to an increase in SREBP2 and HMGCR m RNA levels(P = 0.009 and 0.037, respectively) and protein expression. The molecular mechanism studyrevealed that the HCV core protein increased the expression of SREBP2 by enhancing its promoter activity(P = 0.004). In addition, mi R-185-5p expression was tightly regulated by the HCV core protein(P = 0.041). Moreover, overexpression of mi R-185-5p repressed the SREBP2 m RNA level(P = 0.022) and protein expression. In contrast, inhibition of mi R-185-5p caused upregulation of SREBP2 protein expression. mi R-185-5p was involved in the regulation of SREBP2 expression by HCV core protein. CONCLUSION: HCV core protein disturbs the cholesterol homeostasis in Hep G2 cells via the SREBP2 pathway; mi R-185-5p is involved in the regulation of SREBP2 by the core protein. | Min Li Qi Wang Shun-Ai Liu Jin-Qian Zhang Wei Ju Min Quan Sheng-Hu Feng Jin-Ling Dong Ping Gao Jun Cheng | 2015 | World Journal of Gastroenterology2015,21,15: | 10 |
| 19 | Treatment strategies for mass burn casualties显示文摘因为很多严重受伤的病人在一短时间以内被送,背景集体灼伤伤亡总是是对一个医疗队的大挑战。通常,高死亡正在逼近。从牺牲品的成功的治疗获得的经验可能在在武装 conflict.Methods 指导集体伤亡的照顾是有用的在单个批的 35 个灼伤牺牲品,坐飞机不停地被转移并且从一个远省的高速公路,被承认 48 个小时损害以后。所有病人与吝啬的年龄是男性的(22.4 ? 蟠 ?( | CHAI Jia-ke SHENG Zhi-yong YANG Hong-ming HAO Dai-feng SHEN Chuan-an JIA Xiao-ming LI Feng JING Sa LI Li-gen SONG Hui-feng JIA Chi-yu TUO Xiao-ye SUN Tian-jun HU Quan | 2009 | Chinese Medical Journal2009,,5: | 10 |
| 20 | Inactivated Sendai Virus Suppresses Murine Melanoma Growth by Inducing Host Immune Responses and Down-regulating β-catenin Expression显示文摘Objective This paper aims to investigate the anti-tumor mechanism of inactivated Sendai virus (Hemagglutinating virus of Japan envelope, HVJ-E) for murine melanoma (B16F10). Methods The murine dendritic cells (DCs) were treated with HVJ-E, and then the cytokines secreted from DCs and costimulation-related molecules on DCs were measured. Meanwhile, the expression of β-catenin in HVJ-E treated murine melanoma cells was detected. In addition, HVJ-E was intratumorally injected into the melanoma on C57BL/6 mice, and the immune cells, CTL response and tumor volume were analyzed. Results HVJ-E injected into B16F10 melanoma obviously inhibited the growth of the tumor and prolonged the survival time of the tumor-bearing mice. Profiles of cytokines secreted by dendritic cells (DCs) after HVJ-E stimulation showed that the number of cytokines released was significantly higher than that elicited by PBS (P<0.05). The co-stimulation-related molecules on DCs were comparable to those stimulated by LPS. Immunohistochemical examinations demonstrated the repression of β-catenin in B16F10 melanoma cells after HVJ-E treatment. Meanwhile, real-time reverse transcription PCR revealed that HVJ-E induced a remarkable infiltration of CD11c positive cells, chemokine ligand 10 (CXCL10) molecules, interleukin-2 (IL-2) molecule, CD4 + and CD8 + T cells into HVJ-E injected tumors. Furthermore, the mRNA expression level of β-catenin in the HVJ-E injected tumors was also down-regulated. In addition, B16F10-specific CTLs were induced significantly after HVJ-E was injected into the tumor-bearing mice. Conclusion This is the first report to show the effective inhibition of melanoma tumors by HVJ-E alone and the mechanism through which it induces antitumor immune responses and regulates important signal pathways for melanoma invasion. Therefore, HVJ-E shows its prospect as a novel therapeutic for melanoma therapy. | ZHANG Quan YUAN Wei Feng ZHAI Guo Qin XUE Zheng Feng ZHU Hong Fei XU Xiang Ming | 2012 | Biomedical and Environmental Sciences2012,25,5: | 9 |