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11篇 您的检索式:作者名="Weida Lu"
    题名 作者 年代 出处 被引量
1Sequential fate-switches in stem-like cells drive the tumorigenic trajectory from human neural stem cells to malignant glioma显示文摘Glioblastoma(GBM)is an incurable and highly heterogeneous brain tumor,originating from human neural stem/progenitor cells(hNSCs/hNPCs)years ahead of diagnosis.Despite extensive efforts to characterize hNSCs and end-stage GBM at bulk and single-cell levels,the de novo gliomagenic path from hNSCs is largely unknown due to technical difficulties in early-stage sampling and preclinical modeling.Here,we established two highly penetrant hNSC-derived malignant glioma models,which resemble the histopathology and transcriptional heterogeneity of human GBM.Integrating time-series analyses of whole-exome sequencing,bulk and single-cell RNA-seq,we reconstructed gliomagenic trajectories,and identified a persistent NSC-like population at all stages of tumorigenesis.Through trajectory analyses and lineage tracing,we showed that tumor progression is primarily driven by multi-step transcriptional reprogramming and fate-switches in the NSC-like cells,which sequentially generate malignant heterogeneity and induce tumor phenotype transitions.We further uncovered stage-specific oncogenic cascades,and among the candidate genes we functionally validated C1QL1 as a new glioma-promoting factor.Importantly,the neurogenic-to-gliogenic switch in NSC-like cells marks an early stage characterized by a burst of oncogenic alterations,during which transient AP-1 inhibition is sufficient to inhibit gliomagenesis.Together,our results reveal previously undercharacterized molecular dynamics and fate choices driving de novo gliomagenesis from hNSCs,and provide a blueprint for potential early-stage treatment/diagnosis for GBM.Xiaofei Wang Ran Zhou Yanzhen Xiong Lingling Zhou Xiang Yan Manli Wang Fan Li Chuanxing Xie Yiming Zhang Zongyao Huang Chaoqiong Ding Kaidou Shi Weida Li Yu Liu Zhongwei Cao Zhen-Ning Zhang Shengtao Zhou Chong Chen Yan Zhang Lu Chen Yuan Wang 2021Cell Research2021,31,6:8
2Progress and challenges in blocked impurity band infrared detectors for space-based astronomy显示文摘Astronomical detection at infrared wavelengths is crucial in astrophysics due to the critical information in this wavelength range.Blocked impurity band(BIB) infrared detectors are desirable for space-based astronomical observation due to their broad response range, low dark currents, high quantum efficiencies, and excellent radiation resistance. In this review, typical BIB device structures and device physics development are first introduced. Subsequently, we discuss progress in Si-based BIB detectors with different doping types and emphasize their applications in space-based infrared detection. Additionally, we discuss recent efforts on pixel performance optimization, response extension, and higher operating temperature devices. Finally,we conclude by proposing the challenges and perspectives of BIB detectors with improved detection performances.Yunlong Xiao He Zhu Ke Deng Peng Wang Qing Li Ting He Tao Zhang Jinshui Miao Ning Li Wei Lu Ning Dai Weida Hu 2022Science China(Physics,Mechanics & Astronomy)2022,65,8:4
3Pristine PN junction toward atomic layer devices显示文摘In semiconductor manufacturing,PN junction is formed by introducing dopants to activate neighboring electron and hole conductance.To avoid structural distortion and failure,it generally requires the foreign dopants localize in the designated micro-areas.This,however,is challenging due to an inevitable interdiffusion process.Here we report a brand-new junction architecture,called'layer PN junction',that might break through such limit and help redefine the semiconductor device architecture.Different from all existing semiconductors,we find that a variety of van der Waals materials are doping themselves from n-to p-type conductance with an increasing/decreasing layer-number.It means the capability of constructing homogeneous PN junctions in monolayers'dimension/precision,with record high rectification-ratio(>10^(5))and low cut-off current(<1 pA).More importantly,it spawns intriguing functionalities,like gate-switchable-rectification and noise-signal decoupled avalanching.Findings disclosed here might open up a path to develop novel nanodevice applications,where the geometrical size becomes the only critical factor in tuning charge-carrier distribution and thus functionality.Hui Xia Man Luo Wenjing Wang Hailu Wang Tianxin Li Zhen Wang Hangyu Xu Yue Chen Yong Zhou Fang Wang Runzhang Xie Peng Wang Weida Hu Wei Lu 2022Light(Science & Applications)2022,11,7:4
4The association of grip strength with cardiovascular diseases and all-cause mortality in people with hypertension:Findings from the Prospective Urban Rural Epidemiology China Study显示文摘Background:Both hypertension and grip strength(GS)are predictors of mortality and cardiovascular disease(CVD),but whether these risk factors interact to affect CVD and all-cause mortality is unknown.This study sought to investigate the associations of GS with the risk of major CVD incidence,CVD mortality,and all-cause mortality in patients with hypertension.Methods:GS was measured using a Jamar dynamometer(Sammons Preston,Bolingbrook,IL,USA)in participants aged 3570 years from 12 provinces included in the Prospective Urban Rural Epidemiology China Study.Cox frailty proportional hazards models were used to examine the associations of GS and hypertension and the outcomes of all-cause mortality and CVD incidence/mortality.Results:Among 39,862 participants included in this study,15,964 reported having hypertension,and 9095 had high GS at baseline.After a median follow-up of 8.9 years(interquartile range,6.79.9 years),1822 participants developed major CVD,and 1250 deaths occurred(388 as a result of CVD).Compared with normotensive participants with high GS,hypertensive patients with high GS had a higher risk of major CVD incidence(hazard ratio(HR)=2.39;95%confidence interval(95%CI):1.863.06;p<0.001)or CVD mortality(HR=3.11;95%CI:1.596.06;p<0.001)but did not have a significantly increased risk of all-cause mortality(HR=1.24;95%CI:0.921.68;p=0.159).These risks were further increased if hypertensive participants whose GS level was low(major CVD incidence,HR=3.31,95%CI:2.604.22,p<0.001;CVD mortality,HR=4.99,95%CI:2.649.43,p<0.001;and all-cause mortality,HR=1.93,95%CI:1.472.53,p<0.001).Conclusion:The present study demonstrates that low GS is associated with the highest risk of major CVD incidence,CVD mortality,and all-cause mortality among hypertensive patients.High levels of GS appear to mitigate long-term mortality risk among hypertensive patients.Weida Liu Darryl P Leong Bo Hu Lap AhTse Sumathy Rangarajan Yang Wang Chuangshi Wang Fanghong Lu Yindong Li Salim Yusuf Lisheng Liu Wei Li 2021Journal of Sport and Health Science2021,10,6:2
5[Corrigendum] Cidan inhibits liver cancer cell growth by reducing COX-2and VEGF expression and cell cycle arrest显示文摘Nan Li Donghai Zheng Jie Xue Weixing Guo Jie Shi Juxian Sun Chongde Lu Weida Zheng Mengchao Wu Shuqun Cheng 2015Experimental and Therapeutic Medicine2015,,4:1
6Let-7 microRNAs induce tamoxifen sensitivity by downregulation of estrogen receptor α signaling in breast cancer显示文摘Yingchun Zhao Caishu Deng Weida Lu 2011Mol Med2011,17,1112:1
7Genetic variants in the Hedgehog signaling pathway genes are associated with gastric cancer risk in a Chinese Han population显示文摘The Hedgehog signaling pathway participates in the occurrence and progression of cancers including gastric cancer.We conducted this study to evaluate whether genetic variants in the Hedgehog signaling pathway genes would affect gastric cancer risk.Multi-marker Analysis of GenoMic Annotation(MAGMA)was used to investigate the aggregated genetic effects of single nucleotide polymorphisms(SNPs)assigned to candidate genes.The relationship between SNPs and gastric cancer risk was estimated by multivariate logistic regression analyses.Gene expression was calculated using databases obtained from The Cancer Genome Atlas(TCGA)and The Gene Expression Omnibus(GEO).Kaplan‐Meier plotter was used to evaluate the association between gene expression with gastric cancer survival.Tumor Immune Estimation Resource 2.0(TIMER 2.0)was applied to determine the correlation between selected gene expression and the immune cell infiltration degree.We identified that the G allele of rs2990912 in KIF27 was associated with higher gastric cancer risk,especially in the young and male subgroups.The expression of KIF27 in gastric cancer tissues was higher than that in normal tissues,leading to poor survival in gastric cancer patients.Besides,KIF27 expression was related to immune cell infiltration and positively correlated with PD-L1 expression.Our findings highlight the key role of genetic variation in the Hedgehog signaling pathway genes in gastric cancer susceptibility,which may provide important insights into the diagnosis,prognosis,and treatment of gastric cancer.Yujuan Zhang Kai Lu Xu Wu Hanting Liu Junyi Xin Xiaowei Wang Weida Gong Qinghong Zhao Meilin Wang Haiyan Chu Mulong Du Guoquan Tao Zhengdong Zhang 2022The Journal of Biomedical Research2022,36,1:1
8Direct observation and manipulation of hot electrons at room temperature显示文摘In modern electronics and optoelectronics,hot electron behaviors are highly concerned,as they determine the performance limit of a device or system,like the associated thermal or power constraint of chips and the Shockley-Queisser limit for solar cell efficiency.To date,however,the manipulation of hot electrons has been mostly based on conceptual interpretations rather than a direct observation.The problem arises from a fundamental fact that energy-differential electrons are mixed up in real-space,making it hard to distinguish them from each other by standard measurements.Here we demonstrate a distinct approach to artificially(spatially)separate hot electrons from cold ones in semiconductor nanowire transistors,which thus offers a unique opportunity to observe and modulate electron occupied state,energy,mobility and even path.Such a process is accomplished through the scanning-photocurrent-microscopy measurements by activating the intervalley-scattering events and 1D charge-neutrality rule.Findings here may provide a new degree of freedom in manipulating non-equilibrium electrons for both electronic and optoelectronic applications.Hailu Wang Fang Wang Hui Xia Peng Wang Tianxin Li Juzhu Li Zhen Wang Jiamin Sun Peisong Wu Jiafu Ye Qiandong Zhuang Zaixing Yang Lan Fu Weida Hu Xiaoshuang Chen Wei Lu 2021National Science Review2021,8,9:0
9Energy management of hybrid electric propulsion system: Recent progress and a flying car perspective under three-dimensional transportation networks显示文摘The hybrid electric propulsion system(HEPS)holds clear potential to support the goal of sustainability in the automobile and aviation industry.As an important part of the three-dimensional transportation network,vehicles and aircraft using HEPSs have the advantages of high fuel economy,low emission,and low noise.To fulfill these advantages,the design of their energy management strategies(EMSs)is essential.This paper presents an in-depth review of EMSs for hybrid electric vehicles(HEVs)and hybrid electric aircraft.First,in view of the main challenges of current EMSs of HEVs,the referenced research is reviewed according to the solutions facing real-time implementation problems,variable driving conditions adaptability problems,and multi-objective optimization problems,respectively.Second,the existing research on the EMSs for hybrid electric aircraft is summarized according to the hybrid electric propulsion architectures.In addition,with the advance in propulsion technology and mechanical manufacturing in recent years,flying cars have gradually become a reality,further enriching the composition of the three-dimensional transportation network.And EMSs also play an essential role in the efficient operation of flying cars driven by HEPSs.Therefore,in the last part of this paper,the development status of flying cars and their future prospects are elaborated.By comprehensively summarizing the EMSs of HEPS for vehicles and aircraft,this review aims to provide guidance for the research on the EMSs for flying cars driven by HEPS and serve as the basis for knowledge transfer of relevant researchers.Chao Yang Zhexi Lu Weida Wang Ying Li Yincong Chen Bin Xu 2023Green Energy and Intelligent Transportation2023,2,1:0
10Configurable circular-polarization-dependent optoelectronic silent state for ultrahigh light ellipticity discrimination显示文摘Filterless light-ellipticity-sensitive optoelectronic response generally has low discrimination,thus severely hindering the development of monolithic polarization detectors.Here,we achieve a breakthrough based on a configurable circular-polarization-dependent optoelectronic silent state created by the superposition of two photoresponses with enantiomerically opposite ellipticity dependences.The zero photocurrent and the significantly suppressed noise of the optoelectronic silent state singularly enhance the circular polarization extinction ratio(CPER)and the sensitivity to light ellipticity perturbation.The CPER of our device approaches infinity by the traditional definition.The newly established CPER taking noise into account is 3-4 orders of magnitude higher than those of ordinary integrated circular polarization detectors,and it remains high in an expanded wavelength range.The noise equivalent light ellipticity difference goes below 0.009° Hz-1/2 at modulation frequencies above 1000 Hz by a light power of 281 uW.This scheme brings a leap in developing monolithic ultracompact circular polarization detectors.Yonghao Bu Xiansong Ren Jing Zhou Zhenhan Zhang Jie Deng Hangyu Xu Runzhang Xie Tianxin Li Weida Hu Xia Guo Wei Lu Xiaoshuang Chen 2023Light(Science & Applications)2023,12,8:0
11Graphene/MoS_(2-x)O_(x)/graphene photomemristor with tunable non-volatile responsivities for neuromorphic vision processing显示文摘Conventional artificial intelligence(Al)machine vision technology,based on the von Neumann architecture,uses separate sensing,computing,and storage units to process huge amounts of vision data generated in sensory terminals.The frequent movement of redundant data between sensors,processors and memory,however,results in high-power consumption and latency.A more efficient approach is to offload some of the memory and computational tasks to sensor elements that can perceive and process the optical signal simultaneously.Here,we proposed a non-volatile photomemristor,in which the reconfigurable responsivity can be modulated by the charge and/or photon flux through it and further stored in the device.The non-volatile photomemristor has a simple two-terminal architecture,in which photoexcited carriers and oxygen-related ions are coupled,leading to a displaced and pinched hysteresis in the current-voltage characteristics.For the frst time,non-volatile photomemristors implement computationally complete logic with photoresponse-stateful operations,for which the same photomemristor serves as both a logic gate and memory,using photoresponse as a physical state variable instead of light,voltage and memresistance.The polarity reversal of photomemristors shows great potential for in-memory sensing and computing with feature extraction and image recognition for neuromorphic vision.Xiao Fu Tangxin Li Bin Cai Jinshui Miao Gennady NPanin Xinyu Ma jinjin Wang Xiaoyong Jiang Qing Li Yi Dong Chunhui Hao Juyi Sun Hangyu Xu Qixiao Zhao Mengjia Xia Bo Song Fansheng Chen Xiaoshuang Chen Wei Lu Weida Hu 2023Light(Science & Applications)2023,12,2:0
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