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| 1 | Gain-of-function mutant p53 in cancer progression and therapy显示文摘p53 is a key tumor suppressor,and loss of p53 function is frequently a prerequisite for cancer development.The p53 gene is the most frequently mutated gene in human cancers;p53 mutations occur in>50%of all human cancers and in almost every type of human cancers.Most of p53 mutations in cancers are missense mutations,which produce the full-length mutant p53(mutp53)protein with only one amino acid difference from wild-type p53 protein.In addition to loss of the tumor-suppressive function of wild-type p53,many mutp53 proteins acquire new oncogenic activities independently of wild-type p53 to promote cancer progression,termed gain-of-function(GOF).Mutp53 protein often accumulates to very high levels in cancer cells,which is critical for its GOF.Given the high mutation frequency of the p53 gene and the GOF activities of mutp53 in cancer,therapies targeting mutp53 have attracted great interest.Further understanding the mechanisms underlying mutp53 protein accumulation and GOF will help develop effective therapies treating human cancers containing mutp53.In this review,we summarize the recent advances in the studies on mutp53 regulation and GOF as well as therapies targeting mutp53 in human cancers. | Cen Zhang Juan Liu Dandan Xu Tianliang Zhang Wenwei Hu Zhaohui Feng | 2020 | Journal of Molecular Cell Biology2020,12,9: | 18 |
| 2 | Human monoclonal antibodies block the binding of SARS-CoV-2 spike protein to angiotensin converting enzyme 2 receptor显示文摘According to the World Health Organization(WHO)newly updated situation report on March 18th,2020,the coronavirus disease 2019(COVID-19)pandemic has confirmed 191,127 cases and claimed 7807 deaths worldwide.1 The etiological agent of COVID-19 has been identified as a novel coronavirus,the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),belonging to Sarbecovirus subgenus(genus Betacoronavirus,family Coronaviridae)and showing 79.6 and 96.2%sequence identity in nucleotide to SARS-CoV and a bat coronavirus(BatCoV RaTG13),respectively.2–4 Like SARS-CoV infection,a substantial fraction of COVID-19 patients exhibits severe respiratory symptoms and has to be hospitalized in intensive care unit.5–8 Although the mortality rate of COVID-19 is significantly lower than that of SARS-CoV infection,SARS-CoV-2 shows much higher human-to-human transmission rate,rapidly leading to a global pandemic declared by WHO on March 11th,2020. | Xiangyu Chen Ren Li Zhiwei Pan Chunfang Qian Yang Yang Renrong You Jing Zhao Pinghuang Liu Leiqiong Gao Zhirong Li Qizhao Huang Lifan Xu Jianfang Tang Qin Tian Wei Yao Li Hu Xiaofeng Yan Xinyuan Zhou Yuzhang Wu Kai Deng Zheng Zhang Zhaohui Qian Yaokai Chen Lilin Ye | 2020 | Cellular & Molecular Immunology2020,17,6: | 17 |
| 3 | Intelligent control of mode-locked femtosecond pulses by time-stretch-assisted real-time spectral analysis显示文摘Mode-locked fiber lasers based on nonlinear polarization evolution can generate femtosecond pulses with different pulse widths and rich spectral distributions for versatile applications through polarization tuning.However,a precise and repeatable location of a specific pulsation regime is extremely challenging.Here,by using fast spectral analysis based on a time-stretched dispersion Fourier transform as the spectral discrimination criterion,along with an intelligent polarization search algorithm,for the first time,we achieved real-time control of the spectral width and shape of mode-locked femtosecond pulses;the spectral width can be tuned from 10 to 40 nm with a resolution of ~1.47 nm,and the spectral shape can be programmed to be hyperbolic secant or triangular.Furthermore,we reveal the complex,repeatable transition dynamics of the spectrum broadening of femtosecond pulses,including five middle phases,which provides deep insight into ultrashort pulse formation that cannot be observed with traditional mode-locked lasers. | Guoqing Pu Lilin Yi Li Zhang Chao Luo Zhaohui Li Weisheng Hu | 2020 | Light(Science & Applications)2020,9,1: | 16 |
| 4 | COL4A3 mutations cause focal segmenta glomerulosclerosis显示文摘 | Jingyuan Xie Xiaoxi Wu Hong Ren Weiming Wang Zhaohui Wang Xiaoxia Pan Xu Hao Jun Tong Jun Ma Zhibin Ye Guoyu Meng Yufei Zhu Krzysztof Kiryluk Xiangyin Kong Landian Hu Nan Chen | 2014 | Journal of Molecular Cell Biology2014,8,6: | 15 |
| 5 | MiR-139-5p inhibits migration and invasion of colorectal cancer by downregulating AMFR and NOTCH1显示文摘MicroRNAs (miRNAs ) 由抑制最近在 carcinogenesis 和转移在我们 non-protein-coding RNA 的角色的理解带给卓见的 posttranscriptional 施加功能。在这研究,我们在 CRC 在 colorectal 癌症(CRC ) 和它的潜在的临床的应用程序描述了函数和 miR-139-5p 的分子的机制。我们发现 miR-139-5p 是显著地, CRC 与邻近的 noncancerous 纸巾(NCT ) 相比取样的在 73.8% 的 downregulated,和减少的 miR-139-5p 与穷人被联系预后。功能的分析证明 miR-139-5p 的那个宫外的表达式在 vivo 在 vitro 和转移压制了 CRC 房间移植和侵略。机械学的调查表明 miR-139-5p 由指向 AMFR 和 NOTCH1 压制 CRC 房间侵略和转移。二基因 phenocopied 击倒 CRC 上的 miR-139-5p 的禁止的效果转移。而且,二基因的蛋白质层次与 NCT 相比是在 CRC 样品的 upregulated,并且相反地与 miR-139-5p 表示相关。增加的 NOTCH1 蛋白质表示与 CRC 病人的差的预后被相关。一起,我们的数据显示 miR-139-5p 为 CRC 是潜在的肿瘤 suppressor 和预示的因素,并且指向 miR-139-5p 可以镇压 CRC 的转移并且改善幸存。 | Mingxu Song Yuan Yin Jiwei Zhang Binbin Zhang Zehua Bian Chao Quan Leyuan Zhou Yaling Hu Qifeng Wang Shujuan Ni Bojian Fei Weili Wang Xiang Du Dong Hua Zhaohui Huang | 2014 | Protein & Cell2014,5,11: | 14 |
| 6 | Incipient mechanical fault detection based on multifractal and MTS methods显示文摘An incipient mechanical fault detection method, combining multifractal theory and Mahalanobis-Taguchi system (MTS), which is based on statistical technology, is proposed in this paper. Multifractal features of vibration signals obtained from machine state monitoring are extracted by multifractal spectrum analysis and generalized fractal dimensions. Considering the situation of mass samples of normal mechanical running state and few fault states, the feature parameters corresponding to different mechanical running states are further optimized by a statistical method, based on which incipient faults are subsequently identifi ed and diagnosed accurately. Experimental results proved that the method combining multifractal theory and MTS can be used for incipient fault state recognition effectively during the mechanical running process, and the accuracy of fault state identifi cation is improved. | Hu Jinqiu Zhang Laibin Liang Wei Wang Zhaohui | 2009 | Petroleum Science2009,6,2: | 8 |
| 7 | Sensitivity-enhanced surface plasmon resonance sensor utilizing a tungsten disulfide (WS_2) nanosheets overlayer显示文摘Tungsten disulfide(WS_2), as a representative layered transition metal dichalcogenide(TMDC) material, possesses important potential for applications in highly sensitive sensors. Here, a sensitivity-enhanced surface plasmon resonance(SPR) sensor with a metal film modified by an overlayer of WS_2 nanosheets is proposed and demonstrated. The SPR sensitivity is related to the thickness of the WS_2 overlayer, which can be tailored by coating a WS_2 ethanol suspension with different concentrations or by the number of times of repeated post-coating.Benefitting from its large surface area, high refractive index, and unique optoelectronic properties, the WS_2 nanosheet overlayer coated on the gold film significantly improves the sensing sensitivity. The highest sensitivity(up to 2459.3 nm∕RIU) in the experiment is achieved by coating the WS_2 suspension once. Compared to the case without a WS_2 overlayer, this result shows a sensitivity enhancement of 26.6%. The influence of the WS_2 nanosheet overlayer on the sensing performance improvement is analyzed and discussed. Moreover, the proposed WS_2 SPR sensor has a linear correlation coefficient of 99.76% in refractive index range of 1.333 to 1.360. Besides sensitivity enhancement, the WS_2 nanosheet overlayer is able to show additional advantages, such as protection of metal film from oxidation, tunability of the resonance wavelength region, biocompatibility, capability of vapor,and gas sensing. | HAO WANG HUI ZHANG JIANGLI DONG SHIQI HU WENGUO ZHU WENTAO QIU HUIHUI LU JIANHUI YU HEYUAN GUAN SHECHENG GAO ZHAOHUI LI WEIPING LIU MIAO HE JUN ZHANG ZHE CHEN YUNHAN LUO | 2018 | Photonics Research2018,6,6: | 8 |
| 8 | Optical observations of LIGO source GW 170817 by the Antarctic Survey Telescopes at Dome A,Antarctica显示文摘The LIGO detection of gravitational waves(GW) from merging black holes in 2015 marked the beginning of a new era in observational astronomy. The detection of an electromagnetic signal from a GW source is the critical next step to explore in detail the physics involved. The Antarctic Survey Telescopes(AST3),located at Dome A, Antarctica, is uniquely situated for rapid response time-domain astronomy with its continuous night-time coverage during the austral winter. We report optical observations of the GW source(GW 170817) in the nearby galaxy NGC 4993 using AST3. The data show a rapidly fading transient at around 1 day after the GW trigger, with the i-band magnitude declining from 17:23 ± 0:13 magnitude to 17:72 ± 0:09 magnitude in ~1:8 h. The brightness and time evolution of the optical transient associated with GW 170817 are broadly consistent with the predictions of models involving merging binary neutron stars. We infer from our data that the merging process ejected about ~10^(-2) solar mass of radioactive material at a speed of up to 30% the speed of light. | lei hu xuefeng wu igor andreoni michael c.b.ashley jeff cooke xiangqun cui fujia du zigao dai bozhong gu yi hu haiping lu xiaoyan li zhengyang li ensi liang liangduan liu bin ma zhaohui shang tianrui sun n.b.suntzeff charling tao syed a.uddin lifan wang xiaofeng wang haikun wen di xiao jin xu ji yang shihai yang xiangyan yuan hongyan zhou hui zhang jilin zhou zonghong zhu | 2017 | Science Bulletin2017,62,21: | 6 |
| 9 | Gaze estimation in a gaze tracking system显示文摘This article presents a gaze estimation method (GEMHSSO) based on the pupil center cornea reflection (PCCR) technique.Existing PCCR systems suffer from several problems,including the restriction of users' head movement,and the requirement of individual calibration.This paper presents a head position compensation model using a single camera and a single light source,which realizes the analytic compensation of head motion effects on pupil-glint vectors.We then present a transformation model for individual differences to simplify the calibration process to a one-point calibration.On this basis,we establish a novel gaze estimation method that reduces the minimum hardware requirements for accurate estimation to a single camera (not calibrated) and a single light source.Without the need for a complex system,our method has the ability to estimate gaze during natural head movement,and to substantially simplify user calibration.Each step of the proposed method in this paper makes real-time implementation possible,which provides an effective solution for eye-gaze tracking in human-computer interaction systems. | ZHANG Chuang CHI JianNan ZHANG ZhaoHui GAO XiaoLiang HU Tao WANG ZhiLiang | 2011 | Science China(Information Sciences)2011,54,11: | 6 |
| 10 | Microscopic examination of intracellular organisms in bronchoalveolar lavage fluid for the diagnosis of ventilator-associated pneumonia:a prospective multi-center study显示文摘 | Liu Chang Du Zhaohui Zhou Qing Hu Bo Li Zhifeng Yu Li Xu Tao Fan Xuepeng Yang Junhui Li Jianguo | 2014 | Chinese Medical Journal2014,,10: | 6 |
| 11 | Spatial heterogeneity and source apportionment of soil metal(loid)s in an abandoned lead/zinc smelter显示文摘Metal smelting have brought severe metal(loid)s contamination to the soil.Spatial distribution and pollution source analysis for soil metal(loid)s in an abandoned lead/zinc smelter were studied.The results showed that soil was contaminated heavily withmetal(loid)s.The mean of lead(Pb),arsenic(As),cadmium(Cd),mercury(Hg)and antimony(Sb)content in topsoil is 9.7,8.2,5.0,2.3,and 1.2 times higher than the risk screening value for soil contamination of development land of China(GB36600-2018),respectively.Cd ismainly enriched in the 0–6mdepth of site soil while As and Pbmainly deposited in the 0–4mlayer.The spatial distribution of soil metal(loid)s is significantly correlated with the pollution source in the different functional areas of smelter.As,Hg,Sb,Pb and copper(Cu)were mainly distributed in pyrometallurgical area,while Cd,thallium(Tl)and zinc(Zn)was mainly existed in both hydrometallurgical area and raw material storage area.Soil metal(loid)s pollution sources in the abandoned smelter are mainly contributed to the anthropogenic sources,accounting for 84.5%.Specifically,Pb,Tl,As,Hg,Sb and Cumainly from atmospheric deposition(55.9%),Cd and Zn mainly from surface runoff(28.6%),While nickel(Ni)mainly comes from parent material(15.5%).The results clarified the spatial distribution and their sources in different functional areas of the smelter,providing a new thought for the risk prevention and control of metal(loid)s in polluted site soil. | Yunxia Zhang Tianshuang Li Zhaohui Guo Huimin Xie Zhihao Hu Hongzhen Ran Changzhou Li Zhichao Jiang | 2023 | Journal of Environmental Sciences2023,,5: | 5 |
| 12 | Temperature dependent Raman and photoluminescence of vertical WS2/MoS2 monolayer heterostructures显示文摘Heterostructures from two-dimensional transition-metal dichalcogenides MX_2 have emerged as a hot topic in recent years due to their various fascinating properties. Here, we investigated the temperature dependent Raman and photoluminescence(PL) spectra in vertical stacked WS_2/MoS_2 monolayer heterostructures. Our result shows that both E_(2g)~1 and A_(1g) modes of WS_2 and MoS_2 vary linearly with temperature increasing from 300 to 642 K. The PL measurement also reveals strong temperature dependencies of the PL intensity and peak position. The activation energy of the thermal quenching of the PL emission has been found to be equal to 69.6 meV. The temperature dependence of the peak energy well follows the bandgap shrinkage of bulk semiconductor. | Zhijian Hu Yanjun Bao Ziwei Li Yongji Gong Rui Feng Yingdong Xiao Xiaochun Wu Zhaohui Zhang Xing Zhu Pulickel M. Ajayan Zheyu Fang | 2017 | Science Bulletin2017,62,1: | 5 |
| 13 | Tumor suppressor p53 cross-talks with TRIM family proteins显示文摘p53 is a key tumor suppressor.As a transcription factor,p53 accumulates in cells in response to various stress signals and selectively transcribes its target genes to regulate a wide variety of cellular stress responses to exert its function in tumor suppression.In addition to tumor suppression,p53 is also involved in many other physiological and pathological processes,e.g.anti-infection,immune response,development,reproduction,neurodegeneration and aging.To maintain its proper function,p53 is under tight and delicate regulation through different mechanisms,particularly the posttranslational modifications.The tripartite motif(TRIM)family proteins are a large group of proteins characterized by the RING,B-Box and coiled-coil(RBCC)domains at the N-terminus.TRIM proteins play important roles in regulation of many fundamental biological processes,including cell proliferation and death,DNA repair,transcription,and immune response.Alterations of TRIM proteins have been linked to many diseases including cancer,infectious diseases,developmental disorders,and neurodegenera-tion.Interestingly,recent studies have revealed that many TRIM proteins are involved in the regulation of p53,and at the same time,many TRIM proteins are also regulated by p53.Here,we review the cross-talk between p53 and TRIM proteins,and its impact upon cellular biological processes as well as cancer and other diseases. | Juan Liu Cen Zhang Xue Wang Wenwei Hu Zhaohui Feng | 2021 | Genes & Diseases2021,8,4: | 5 |
| 14 | Tumor suppressor p53 and metabolism显示文摘p53 plays a key role in tumor suppression. The tumor suppressive function of p53 has long been attributed to its ability to induce apoptosis, cell cycle arrest, and senescence in cells. However, recent studies suggest that other functions of p53 also contribute to its role as a tumor suppressor, such as its function in metabolic regulation. p53 regulates various metabolic pathways to maintain the metabolic homeostasis of cells and adapt cells to stress. In addition, recent studies have also shown that gain-offunction (GOF) mutant p53 proteins drive metabolic reprogramming in cancer cells, contributing to cancer progression. Further understanding of p53 and its GOF mutants in metabolism will provide new opportunities for cancer therapy. | Juan Liu Cen Zhang Wenwei Hu Zhaohui Feng | 2019 | Journal of Molecular Cell Biology2019,11,4: | 5 |
| 15 | Computational neuroscience:a frontier of the 21^st century显示文摘THEORY IN NEUROSCIENCE The human brain is a biological organ,weighing about three pounds or 1.4 kg,that determines our behaviors,thoughts,emotions and consciousness.Although comprising only 2%of the total body weight,the brain consumes about 20%of the oxygen entering the body.With the expensive energy demand,the brain enables us to perceive and act upon the external world,as well as reflect on our internal thoughts and feelings. | Xiao-Jing Wang Hailan Hu Chengcheng Huang Henry Kennedy Chengyu Tony Li Nikos Logothetis Zhong-Lin Lu Qingming Luo Mu-ming Poo Doris Tsao Si Wu Zhaohui Wu Xu Zhang Douglas Zhou | 2020 | National Science Review2020,7,9: | 4 |
| 16 | Application of an Improved ISODATA Method to Pipeline Leak Detection显示文摘Increasingly serious leak problem in pipeline transportation has not only affected the operation of pipelines but also caused loss of precious resource and environmental damage. Based on the analysis of the occurrence of negative pressure waves and the unsupervised learning of pattern recognition, the Interactive Self-organizing Data Analysis Technique Algorithm (ISODATA) method was used to classify the negative pressure waves and then the states of pipelines could be determined. K_L transformation was used to eliminate the correlativity of feature parameters and to reduce the dimensionality of feature vector space to speed up calculation. Experimental results validated the accuracy and practical value of this method. | Hu Jinqiu Zhang Laibin Wang Zhaohui Liang Wei | 2007 | Petroleum Science2007,4,2: | 4 |
| 17 | Morphology-controllable solvothermal synthesis of nanoscale LiFePO_4 in a binary solvent显示文摘LiFePO4(LFP) nanobars,microplates and nanorods have been selectively synthesized via a solvothermal method in a water-ethylene glycol(EG) binary solvent with H3PO4,LiOH·H2O,and FeSO4·7H2O as starting materials.The morphology and size of the as-obtained LFP products can be deliberately controlled by varying the volume ratio of EG to water.The formation mechanism and electrochemical properties of different LFP morphologies have been investigated.With carbon coating,the Li-ion diffusion coefficients of LFP nanorods,nanobars and micro-plates are 2.58×10-9,2.91×10-10,and 7.22×10-10 cm2 s-1,respectively.For the carbon-coated nanorods,excellent rate capability and cyclability were attained.At 5 C,the capacity was 141 mAh g-1 for the first cycle and maintained 120 mAh g-1 after 100 cycles;at 10 C,the capacity was still as high as 132 mAh g-1. | WU Miao WANG ZhaoHui YUAN LiXia ZHANG WuXing HU XianLuo HUANG YunHui | 2012 | Chinese Science Bulletin2012,57,32: | 4 |
| 18 | Surface disorder engineering in ZnCdS for cocatalyst free visible light driven hydrogen production显示文摘Metal chalcogenide solid solution,especially ZnCdS,has been intensively investigated in photocatalytic H_(2) generation due to their cost-effective synthetic procedure and adjustable band structures.In this work,we report on the defect engineering of ZnCdS with surface disorder layer by simple room temperature Li-ethylenediamine(Li-EDA)treatment.Experimental results confirm the formation of unusual Zn and S dual vacancies,where rich S vacancies(Vs)served as electron trapping sites,meanwhile Zn vacancies(Vzn)served as hole trapping sites.The refined structure significantly facilitates the photo charge carrier transfer and improves photocatalytic properties of ZnCdS.The disordered ZnCdS shows a highest photocatalytic H_(2) production rate of 33.6 mmol·g^(-1)·h^(-1) under visible light with superior photocatalytic stabilities,which is 7.3 times higher than pristine ZnCdS and 7 times of Pt(1 wt.%)loaded ZnCdS. | Enna Ha Shuhong Ruan Danyang Li Yuanmin Zhu Yanping Chen Jiangyuan Qiu Zhaohui Chen Tingting Xu Jingyun Su Luyang Wang Junqing Hu | 2022 | Nano Research2022,15,2: | 3 |
| 19 | FAST SOLUTION FOR LARGE SCALE LINEAR ALGEBRAIC EQUATIONS IN FINITE ELEMENT ANALYSIS显示文摘The computational efficiency of numerical solution of linear algebraic equations in finite elements can be improved in tow wqys. One is to decrease the fill-in numbers, which are new non-ze-ro numbers in the matrix of global stiffness generated during the process of elimination.The other is to reduce the computational operation of multiplying a real number by zero.Based on the fact that the order of elimination can determine how many fill-in numbers should be generated, we present a new method for optimization of numbering nodes. This method is quite different from bandwidth optimization. Fill-in numbers can be decreased in a large scale by the use of this method. The bi-factorization method is adoted to avoid multiplying real numbers by zero.For large scale finite element analysis, the method presented in this paper is more efficient than the traditional LDLT method. | Qi Zhaohui Liu Yuqi Hu Ping | 2001 | Acta Mechanica Solida Sinica2001,14,1: | 3 |
| 20 | 1,25-(OH)2D3 protects pancreatic beta cells against H2O2-induced apoptosis through inhibiting the PERK-ATF4-CHOP pathway显示文摘Endoplasmic reticulum(ER)stress plays a critical role in pancreaticβcell destruction which leads to the pathogenesis of type 1 diabetes mellitus(T1DM).Vitamin D(VD)has been reported to reduce the risk of T1DM;however,it remains unknown whether VD affects ER stress in pancreaticβcells.In this study,we investigated the role of the active form of VD,1,25-dihydroxyvitamin D3[1,25-(OH)2D3],in ER stress-inducedβcell apoptosis and explored its potential mechanism in mouse insulinoma cell line mouse insulinoma 6(MIN6).The results of cell counting kit-8(CCK8)and flow cytometric analyses showed that 1,25-(OH)2D3 caused a significant increase in the viability of MIN6 cells injured by H2O2.The protein kinase like ER kinase(PERK)signal pathway,one of the most conserved branches of ER stress,was found to be involved in this process.H2O2 activated the phosphorylation of PERK,upregulated the activating transcription factor 4(ATF4)and C/EBP homologous protein(CHOP)expression,and subsequently initiated cell apoptosis,which were significantly reversed by 1,25-(OH)2D3 pretreatment.In addition,GSK2606414,a specific inhibitor of PERK,suppressed PERK phosphorylation and reduced the expressions of ATF4 and CHOP,leading to a significant decrease inβcell apoptosis induced by H2O2.Taken together,the present findings firstly demonstrated that 1,25-(OH)2D3 could prevent MIN6 cells against ER stress-associated apoptosis by inhibiting the PERK-ATF4-CHOP pathway.Therefore,our results suggested that 1,25-(OH)2D3 might serve as a potential therapeutic target for preventing pancreaticβcell destruction in T1DM. | Xiaobo Hu Cong Hu Jun Liu Zhuan Wu Tingting Duan Zhaohui Cao | 2021 | Acta Biochimica et Biophysica Sinica2021,53,1: | 3 |