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33篇 您的检索式:作者名="Cuiping Guo"
    题名 作者 年代 出处 被引量
1African Swine Fever Virus MGF360-12L Inhibits Type Ⅰ Interferon Production by Blocking the Interaction of Importin α and NF-κB Signaling Pathway显示文摘African swine fever(ASF)is an infectious transboundary disease of domestic pigs and wild boar and spreading throughout Eurasia.There is no vaccine and treatment available.Complex immune escape strategies of African swine fever virus(ASFV)are crucial factors affecting immune prevention and vaccine development.MGF360 genes have been implicated in the modulation of the IFN-Ⅰresponse.The molecular mechanisms contributing to innate immunity are poorly understood.In this study,we demonstrated that ASFV MGF360-12 L(MGF360 families 12 L protein)significantly inhibited the mRNA transcription and promoter activity of IFN-βand NF-κB,accompanied by decreases of IRF3,STING,TBK1,ISG54,ISG56 and AP-1 m RNA transcription.Also,MGF360-12 L might suppress the nuclear localization of p50 and p65 mediated by classical nuclear localization signal(NLS).Additionally,MGF360-12 L could interact with KPNA2,KPNA3,and KPNA4,which interrupted the interaction between p65 and KPNA2,KPNA3,KPNA4.We further found that MGF360-12 L could interfere with the NF-κB nuclear translocation by competitively inhibiting the interaction between NF-κB and nuclear transport proteins.These findings suggested that MGF360-12 L could inhibit the IFN-Ⅰproduction by blocking the interaction of importinαand NF-κB signaling pathway,which might reveal a novel strategy for ASFV to escape the host innate immune response.Yisha Zhuo Zeheng Guo Tongtong Ba Cheng Zhang Lihua He Cuiping Zeng Hanchuan Dai 2021Virologica Sinica2021,36,2:21
2Stripe Rust Effector PstGSRE1 Disrupts Nuclear Localization of ROS-Promoting Transcription Factor TaLOL2 to Defeat ROS-Induced Defense in Wheat显示文摘Puccinia striiformis f.sp.tritici(Pst),a biotrophic plant pathogen,secretes numerous effectors to modulate host defense systems.Understanding the molecular mechanisms by which Pst effectors regulate wheat immunity is of great importance for the development of novel strategies for durable control of stripe rust.In this study,we identified a glycine-serine-rich effector gene,PstGSRE1,which is highly induced dur-ing early infection.Transgenic expression of PstGSRE1 RNAi constructs in wheat significantly reduced virulence of Pst and increased H2O2 accumulation in wheat.PstGSRE1 was shown to target the reactive ox-ygen species(ROS)-associated transcription factor TaLOL2,a positive regulator of wheat immunity.PstGSRE1 disrupted nuclear localization of TaLOL2 and suppressed ROS-mediated cell death induced by TaLOL2,thus compromising host immunity.This work reveals a previously unrecognized strategy whereby rust fungi exploit the PstGSRE1 effector to defeat ROS-associated plant defense by modulating the subcellular compartment of a host immune regulator and facilitate pathogen infection.Tuo Qi Jia Guo Peng Liu Fuxin He Cuiping Wan Md Ashraful Islam Brett M.Tyler Zhensheng Kang Jun Guo 2019Molecular Plant2019,12,12:11
3Effects of intercropping on rhizosphere soil microorganisms and root exudates of Lanzhou lily(Lilium davidii var.unicolor)显示文摘Both yield and quality of Lanzhou lily(Lilium davidii var. unicolor) are seriously affected by continuous cropping. We attempted to understand the effects of intercropping on the obstacles associated with continuous cropping of Lanzhou lily(Lilium davidii var. unicolor). The changes of rhizosphere microbial biomass and diversity in interplanting and monoculturing systems were studied by using the Illumina Hi Seq sequencing technique. The contents and composition of lily root exudates were measured by gas chromatography–mass spectrometer(GC–MS). The intercropping results of Lanzhou lily showed:(1) There was no difference in the composition of the rhizosphere soil microbes at the phylum level, but the relative abundance of the microbes decreased; and the relative abundance of harmful fungi such as Fusarium sp. increased. The relative abundance of Pleosporales sp. and other beneficial bacteria were reduced. After OTU(operational taxonomic unit)clustering, there were some beneficial bacteria, such as Chaetomium sp., in the lily rhizosphere soil in the interplanting system that had not existed in the single-cropping system. We did not find harmful bacteria that had existed in the single-cropping systm in the rhizosphere soil of interplanting system. The above results indicated that the changes of relative abundance of soil fungi and bacteria in lily rhizosphere soil was not conducive to improving the ecological structure of rhizosphere soil microbes. At the same time, the microbial composition change is very complex—beneficial and yet inadequate at the same time.(2) Root exudates provide a matrix for the growth of microorganisms. Combined with the detection of root exudates, the decrease in the composition of the root exudates of the lily was probably the reason for the decrease of the relative abundance of microbes after intercropping. At the same time, the decrease of the relative content of phenolic compounds, which inhibit the growth of microorganisms, did not increase the relative content of rhizosphere soil microorganisms. Changes in amino acids and total sugars may be responsible for the growth of Fusarium sp.. The results showed that the intercropping pattern did not noticeably alleviate the obstacle to continuous cropping of Lanzhou lily, and the change of microbial biomass and diversity was even unfavorable. However, the emergence of some beneficial bacteria, the disappearance of harmful fungi, and other changes with intercropping are in favor of alleviation of obstacles to continuous cropping of Lanzhou lily.CuiPing Hua YaJun Wang ZhongKui Xie ZhiHong Guo YuBao Zhang Yang Qiu Le Wang 2018Research in Cold and Arid Regions2018,10,2:5
4Phases equilibrated with long-period stacking ordered phases in the Mg-rich corner of the Mg-Y-Zn system显示文摘Phase equilibria involving the long-period stacking ordered phases including 14 H,18 R and 10 H in the Mg-rich corner of the Mg-Y-Zn system at 400 and 500℃ have been experimentally investigated by using X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM)and high-angle annular dark-field scanning transmission electron microscopy(HAADF-STEM).The coexistence of 14 H and 18 R as well as 18 R and 10 H was confirmed from atomic scales.The phases 14 H,18 R and 10 H were all stable phases from 400 to 500℃.The experimentally proved three-phase equilibrium of14 H,18 R and α-Mg instead of 14 H,18 R and Mg_(24)Y_(5) were presented in the modified isothermal sections.The latter three-phase equilibrium was reported in the available literature.The modified isothe rmal sections are conducive to guide the composition design to obtain the alloys with favorable microstructure constituents and mechanical properties.Yongxin Ruan Changrong Li Yuping Ren Xiaopan Wu Schmid-Fetzer Cuiping Guo Zhenmin Du 2021Journal of Materials Science & Technology2021,,9:3
5Gene analysis of an antiviral protein SP-2 from Chinese wild silkworm, Bombyx mandarina Moore and its bioactivity assay显示文摘The cDNA encoding an antiviral protein SP-2 against BmNPV was cloned from the midgut of Chinese wild silkworm, Bombyx mandarina Moore (GenBank access AY945210) based on the available informa- tion of the domesticated silkworm. Its cDNA was 855 bp encoding 284 amino acids with predicted mo- lecular weight of 29.6 kDa. Its full length in genomics was 1376 bp, including 5 exons and 4 introns. The expression analysis indicated that it was only expressed in midgut, and its expression level was higher during feeding stage of larval instars while very lower during the moltism and mature stages. The de- duced amino acid sequence of this protein showed eight-amino-acid variation compared with the counterpart of domesticated silkworm. Its antiviral activity was assayed through in vitro test. The re- sults indicated that it showed strong bioactivity against BmNPV, and its activity was 1.6 fold higher that the counterpart of domesticated silkworm.YAO HuiPeng, HE FangQing, GUO AiQin, CAO CuiPing, LU XingMeng & WU XiaoFeng College of Animal Science, Zhejiang University, Hangzhou 310029, China 2008Science China(Life Sciences)2008,51,10:2
6Shugan Huoxue Huayu Fang(疏肝活血化瘀方)attenuates carbon tetrachloride-induced hepatic fibrosis in rats by inhibiting transforming growth factor-β1/Smad signaling显示文摘OBJECTIVE:To investigate the potential mechanism by which Shugan Huoxue Huayu Fang(疏肝活血化瘀方,SGHXHYF)ameliorates liver fibrosis.METHODS:Liver fibrosis was induced in rats by intraperitoneal injection of carbon tetrachloride(CCl_(4))in peanut oil solution(40%,3 m L/kg body weight)twice a week for 8 weeks.A normal control group received the same volume of peanut oil alone.During weeks 5-8,the CCl_(4)-injected rat groups were administered saline(vehicle control),colchicine(0.1 mg/mL,1 mg/kg,positive control),or SGHXHYF(0.1 mg/mL;0.3,0.6 and 1.2 mg/kg)once daily by oral gavage.Rats were sacrificed 24 h after the last treatment.Blood samples were collected for measurement of serum alanine aminotransferase(ALT),aspartate aminotransferase(AST),alkaline phosphatase(ALP),albumin(ALB),collagenⅠ,and collagenⅢlevels.Liver samples were analyzed by histopathological staining,Masson's staining of extracellular matrix proteins,and immune-ohistochemical staining ofα-smooth muscle actin(α-SMA).TGF-β1/Smad protein and mRNA levels were analyzed by Western blot and quantitative reverse transcription-polymerase chain reaction analysis,respectively.In vitro experiments were also performed using rat hepatic stellate cells(HSCs).RESULTS:Compared with the control animals,CCl_(4)-exposed rats exhibited elevated serum levels of ALT,AST,ALP,collagenⅠ,and collagenⅢ;reduced serum levels of ALB;and increased collagen deposition andα-SMA expression in liver sections,reflecting liver fibrosis.CCl_(4) also increased expression of TGF-β1 and the activated(phosphorylated)forms of Smad2 and Smad3 but reduced expression of the negative regulator Smad7 in the liver.Notably,concomitant administration of SGHXHYF to CCl_(4)-exposed rats was found to significantly reverse or abolish the pro-fibrotic effects of CCl_(4) in the liver and reduced serum transferase levels.Analysis of HSCs in vitro confirmed that,mechanistically,SGHXHYF inhibited activation of the TGF-β1/Smad signaling pathway by downregulating phosphorylated Smad2 and Smad3 and upregulating Smad7 levels.CONCLUSION:SGHXHYF ameliorated CCl_(4)-induced liver fibrosis by inhibiting the TGF-β1/Smad signaling pathway.These findings suggest that SGHXHYF may have clinical utility for the treatment or prevention of liver fibrosis.LIU Lei GUO Hanbin SHAO Cuiping WANG Lin XU Youqing ZHOU Yiming 2022Journal of Traditional Chinese Medicine2022,42,1:2
7Biocompatible, small-sized and well-dispersed gold nanoparticles regulated by silk fibroin fiber from Bombyx mori cocoons显示文摘Biocompatible, small-sized but well-dispersed gold nanoparticles (Au NPs) remain a major challenge for their synthesis. Here a convenient solution impregnation technique is developed to prepare such Au NPs under the regulation of degummed silk fibroin fibers (SFFs) extracted from Bombyx mori cocoons. SFFs play multiple roles in the formation of Au NPs such as reactive substrate to capture AuCl4^- ions by the chelation of -C = 0, reducing agent for Au(0) by the reduction of -OH , and modifiers to render biocompatible Au NPs by some functional groups and biomolecules. The as-prepared Au NPs with a size of 7-10 nm are embedded in the solid SFF substrate, and can disperse well in the liquid system by the disintegration of SFFs into silk fibroin (SF) in a certain CaCl2 solution. The biocompatible Au NPs exhibit uniform small size and distribute stably in both solid and solution states, which have distinctive properties and functional advantages, and bring great convenience to their storage and transportation.Chengzhi YANG Shikun CHEN Huilan SU Haoyue ZHANG Jianfei TANG Cuiping GUO Fang SONG Wang ZHANG Jiajun GU Qinglei LIU 2019Frontiers of Materials Science2019,13,2:2
8Role ofβ(FeA1)nanoparticles in abnormal grain growth in the annealing of cast Cu-Al-Mn-Fe shape memory alloys显示文摘In this study,the low-cost production of Cu-AI-Mn-Fe shape memory alloy single crystals exceeding 46 mm by abnormal grain growth was realized only through annealing their cast alloys.The results show that the mis-orientation formed during annealing may be responsible for such abnormal grain growth process.It was con-firmed that this misorientation resulted from the dissolution of bec B(FeAI)nanoparticles during heat treatment at a sufficiently temperature of approximately 1173 K.The rate of migration of the abnormal grain boundary was experimentally measured to be approximately9.3 x 10^-m s^-1within 2 min of the commencement of abnormal grain growth.Additionally,the range of composition of the alloys that can lead to abnormal grain growth was determined.When the Cu-13.0AI-6.5Mn-3.2Fe single crystal close to the[100]direction was deformed to a pre-strain of 12%,full shape recovery happened without any residual strain.At that time,the superelastic strain was approximately 9%.Such a superelastic characteristic remained nearly constant over 50 cycles,showing excellent fatigue resistance.The superelastic properties of the present Cu-13.0AI-6.5Mn-3.2Fe single crystal are compared to those of commercial Ni-Ti-based shape memory alloys.Therefore,it can be considered as a new kind of superelastic material having practical applications.The obtained results should be of great significance in the development of Cu based shape memory alloys.Furthermore,it is expected that a similar microstructure can be designed for the production of more metallic single crystals.Shuiyuan Yang Xinyu Qing Jixun Zhang Lipeng Guo Shen Hong Mingpei Li Jinbin Zhang Cuiping Wang Xingjun Liu 2020Progress in Natural Science:Materials International2020,30,4:2
9Thermodynamic modeling of the La-Mg-Y system and Mg-based alloys database显示文摘As an example of the La-Mg-Y system, the method how to set up the thermodynamic model of individual phases was introduced in the process of thermodynamic optimization. The solution phases (liquid, body-centered cubic, face-centered cubic, hexagonal close-packed and double hexagonal close-packed) were modeled with the Redlich-Kister equation. The compound energy model has been used to describe the thermodynamic functions of the intermetallic com- pounds in the La-Mg-Y systems. The compounds Mg2Y, Mg24Y5, Mg12La, Mg17La2, Mg41La5, Mg3La and Mg2La in the La-Mg-Y system were treated as the formulae (Mg,Y)2(La,Mg,Y), Mg24(La,Mg,Y)4Y, Mg12(La,Y), Mg17(La,Y)2, Mg41(La,Y)5, Mg3(La,Mg,Y) and Mg2(La,Y), respectively. A model (La,Mg,Y)0.5(La,Mg,Y)0.5 was applied to describe the compound MgM formed by MgLa and MgY in order to cope with the order-disorder transition between body-centered cu- bic solution (A2) and MgM with CsCl-type structure (B2) in the La-Mg-Y system. The Gibbs energies of individual phases were optimized in the La-Mg, La-Y and La-Mg-Y systems by CALPHAD technique. The projection of the liquidus sur- faces for the La-Mg-Y system was predicted. The Mg-based alloys database including 36 binary and 15 ternary systems formed by Mg, Al, Cu, Ni, Mn, Zn and rare earth elements was set up in SGTE standard.DU Zhenmin GUO Cuiping LI Changrong ZHANG Weijing 2006Rare Metals2006,25,5:2
10The Role of Ti in the Preparation of SiC/7075 Aluminum Matrix Composite显示文摘SiC/7075 aluminum matrix composites were prepared by a liquid stirring method.The role of Ti facilitating the preparation of SiC/7075 aluminum matrix were studied by means of direct-reading spectrometer,scanning electron microscope,energy dispersive spectrometer,X-ray diffraction and the sessile drop method.The results show that the SiC content in the SiC/7075 composite increases with an increase of Ti addition.The addition of Ti can significantly improve the wettability of SiC/Al system,there is a critical value of above 0.5%of Ti content in improving the wettability of the Al/SiC system at 1173K.The temperature of the'non wetting-wetting'transition for the(Al-2Ti)/SiC system is about 1123K,the contact angle decreases to 88°at 200 seconds and reaches a stable contact angle of 28°at 2100 seconds.ZHANG Wenda CHEN Chengcheng XU Hong CHE Luchang GUO Cuiping DU Zhenmin 2020Journal of Wuhan University of Technology(Materials Science)2020,35,2:2
11The antioxidant activity of glucosamine hydrochloride in vitro显示文摘Ronge Xing Song Liu Zhanyong Guo Huahua Yu Cuiping Li Xia Ji Jinhua Feng Pengcheng Li 2005Bioorganic & Medicinal Chemistry2005,,6:1
12Optimized prime editing efficiently generates heritable mutations in maize显示文摘Low efficiency is the main obstacle to using prime editing in maize(Zea mays).Recently,prime-editing efficiency was greatly improved in mammalian cells and rice(Oryza sativa)plants by engineering primeediting guide RNAs(pegRNAs),optimizing the prime editor(PE)protein,and manipulating cellular determinants of prime editing.In this study,we tested PEs optimized via these three strategies in maize.We demonstrated that the ePE5max system,composed of PEmax,epegRNAs(pegRNA-evopreQ.1),nicking single guide RNAs(sgRNAs),and MLH1dn,efficiently generated heritable mutations that conferred resistance to herbicides that inhibit 5-enolpyruvylshikimate-3-phosphate synthase(EPSPS),acetolactate synthase(ALS),or acetyl CoA carboxylase(ACCase)activity.Collectively,we demonstrate that the ePE5max system has sufficient efficiency to generate heritable(homozygous or heterozygous)mutations in maize target genes and that the main obstacle to using PEs in maize has thus been removed.Dexin Qiao Junya Wang Min‐Hui Lu Cuiping Xin Yiping Chai Yuanyuan Jiang Wei Sun Zhenghong Cao Siyi Guo Xue‐Chen Wang Qi‐Jun Chen 2023Journal of Integrative Plant Biology2023,65,4:1
13National borders effectively halt the spread of rabies: the current rabies epidemic in China is dislocated from cases inneighboring countries显示文摘Zhenyang Guo Xiaoyan Tao Cuiping Yin 2013PLoS Negl Trop Dis2013,7,20:1
14A large insert Thellungiella halophila BIBAC library for genomics and identification of stress tolerance genes显示文摘Weiquan Wang Yaorong Wu Yin Li Jiaying Xie Zhonghui Zhang Zhiyong Deng Yiyue Zhang Cuiping Yang Jianbin Lai Huawei Zhang Hongyan Bao Sanyuan Tang Chengwei Yang Peng Gao Guixian Xia Huishan Guo Qi Xie 2010Plant Molecular Biology (-)2010,,1:1
15A single mutation underlying phenotypic convergence for hypoxia adaptation on the Qinghai-Tibetan Plateau显示文摘Dear Editor,The Qinghai-Tibet Plateau(QTP)is the highest and largest plateau in the world;its altitude exceeds 4500 m on average,posing great physiological challenges such as severe hypoxia for endemic wild mammals on the plateau.1 To cope with such a harsh environment,the phylogenetically distant QTP endemic mammals have independently evolved similar morphological and physiological traits.Donqming Xu Cuiping Yang Qiushuo Shen Shengkai Pan Zhen Liu Tongzuo Zhang Xin Zhou Menglong Lei Peng Chen Hui Yang Tao Zhang Yuanting Guo Xiangjiang Zhan Yongbin Chen Peng Shi 2021Cell Research2021,31,9:1
16Thermodynamic modeling of the Ru - Zr system显示文摘Ran Hongtao Du Zhenmin Guo Cuiping 2008Journal of Alloys and Compounds2008,464,:1
17Present situation and trend of college students’participation in management in China显示文摘Kang Cuiping Guo Jie 0,,:1
18Thermodynamic assessment of the La-Mg system 显示文摘Guo Cuiping Du Zhenmin 2004Journal of Alloys and Compounds2004,385,:1
19National borders effectively halt /he spread of rabies:the current rabies epidemic in China is dislocatext from cases in neighboring colmtries显示文摘Zhenyang Guo Xiaoyan Tao Cuiping Yin 2013PLoS Negl Trop Dis2013,7,20:1
20Two-phase flow in anode flow field of a small direct methanol fuel cell in different gravities显示文摘An in-situ visualization of two-phase flow inside anode flow bed of a small liquid fed direct methanol fuel cells in normal and reduced gravity has been conducted in a drop tower.The anode flow bed con-sists of 11 parallel straight channels.The length,width and depth of single channel,which had rec-tangular cross section,are 48.0,2.5 and 2.0mm,respectively.The rib width was 2.0mm.The experi-mental results indicated that when the fuel cell orientation is vertical,two-phase flow pattern in anode channels can evolve from bubbly flow in normal gravity into slug flow in microgravity.The size of bub-bles in the reduced gravity is also bigger.In microgravity,the bubbles rising speed in vertical channels is obviously slower than that in normal gravity.When the fuel cell orientation is horizontal,the slug flow in the reduced gravity has almost the same characteristic with that in normal gravity.It implies that the effect of gravity on two-phase flow is small and the bubbles removal is governed by viscous drag.When the gas slugs or gas columns occupy channels,the performance of liquid fed direct methanol fuel cells is failing rapidly.It infers that in long-term microgravity,flow bed and operating condition should be optimized to avoid concentration polarization of fuel cells.GUO Hang WU Feng YE Fang ZHAO JianFu WAN ShiXin LüCuiPing MA ChongFang 2009Science China(Technological Sciences)2009,52,6:1
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