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143篇 您的检索式:作者名="Xiaoli LU"
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1Th22 cells are associated with hepatocellular carcinoma development and progression显示文摘Objective: IL-22-producing CD4+ T helper cells(Th22 cells) have been identified as major inducers of tissue inflammation and immune responses. Currently, no previous study explored the role of Th22 cells in the pathogenesis of hepatocellular carcinoma(HCC). The study aimed to determine the biological function of Th22 cells and its effector IL-22 in HCC patients.Methods: Forty-five HCC patients and 19 healthy controls were recruited and their peripheral blood was collected. The fresh HCC tissues, adjacent HCC tissues and ten normal liver tissues were also collected. Flow cytometry analysis was used to determine the frequencies of circulating Th22 cells and Th17 cells. Serum IL-22 levels were tested by enzyme-linked immunosorbent assay(ELISA). Immunohistochemical staining and real-time polymerase chain reaction(PCR) were used to detect IL-22 protein and mRNA in tissues specimens, respectively.Results: Circulating Th22 cells, Th17 cells and serum IL-22 levels were significantly elevated in HCC patients compared with those of healthy controls(P<0.001). Th22 cells were showed to be positively correlated with IL-22 in HCC patients(P<0.05), but not in healthy controls. No significant differences were found in HCC patients with HBeAg positivity or negativity in term of Th22 cells and serum IL-22 levels. The expression of IL-22 protein and mRNA was highest in HCC tissues, followed by adjacent HCC tissues and normal liver tissues. Furthermore, Th22 cells, serum IL-22 levels and IL-22 mRNA were elevated at stage III-IV compared with stage I-II of HCC(P<0.05).Conclusions: Elevation of circulating Th22 cells and IL-22 may be implicated in the pathogenesis of HCC, and potentially be cellular targets for therapeutic intervention.Shanyu Qin Shijia Ma Xiaoli Huang Donghong Lu You Zhou Haixing Jiang 2014Chinese Journal of Cancer Research2014,26,2:25
2Identification of rice cultivars with low brown rice mixed cadmium and lead contents and their interactions with the micronutrients iron,zinc,nickel and manganese显示文摘Paddy fields in mining areas are usually co-contaminated by a cocktail of mixed toxic heavy metals(e.g.,Cd and Pb in Pb/Zn mines).However,previous studies on rice cultivars screened for effective metal exclusion have mostly focused on individual metals,and have been conducted under pot-trial or hydroponic solution conditions.This study identified rice cultivars with both low Cd and Pb accumulation under Cd-and Pb-contaminated field conditions,and the interactions of the toxic elements Cd and Pb with the micronutrient elements Fe,Zn,Mn and Ni were also studied.Among 32 rice cultivars tested,there were significant differences in Cd(0.06-0.59 mg/kg) and Pb(0.25-3.15 mg/kg) levels in their brown rice,and similar results were also found for the micronutrient elements.Significant decreases in concentrations of Fe and Mn were detected with increasing Cd concentrations and a significant elevation in Fe,Mn and Ni with increasing Pb concentrations.A similar result was also shown by Cd and Ni.Three cultivars were identified with a combination of low brown rice Cd and Pb,high micronutrient and grain yield(Wufengyou 2168,Tianyou 196 and Guinongzhan).Present results suggest that it is possible to breed rice cultivars with low mixed toxic element(Cd,Pb) and high micronutrient contents along with high grain yields,thus ensuring food safety and quality.Bing Li Xun Wang Xiaoli Qi Lu Huang Zhihong Ye 2012Journal of Environmental Sciences2012,24,10:18
3Prevalence of HIV Indeterminate Western Blot Tests and Follow-up of HIV Antibody Sero-Conversion in Southeastern China显示文摘HIV-indeterminate Western blotting(WB)results are typically obtained in WB confirmatory assays,and the number of indeterminate samples may increase with the detection of HIV infections,which will present considerable challenges for the management of HIV/AIDS.Nucleic acid detection has been used as a laboratory test for screening suspected or indeterminate samples.However,the effectiveness of these assays for the differential diagnosis of HIV-indeterminate WB samples remained undetermined.In this study,210 subjects with HIV-indeterminate WB results were detected from 6360 positive HIV screening samples between 2015 and 2016 in southeastern China,in which HIV-indeterminate WB results accounted for 3.30%.The highest proportion of indeterminate results was observed in pregnant and lying-in women receiving physical examinations(16.67%),followed by that in voluntary blood donors(8.82%).The most common WB band patterns were p24,gpl60 and p24,and gpl60.The follow-up study revealed that the highest negative and positive conversion rates of HIV antibodies were in samples with a single p24 band(80.28%),and with gpl60 and p24 bands(86.21%),respectively.Among the Env,Gag,and Pol antibodies,samples with a Gag band showed the highest negative conversion rate(81.25%),whereas the highest positive conversion rate was observed in samples with an Env band(56.76%).In addition,quantitative and qualitative HIV nucleic acid testing exhibited the highest sensitivity(96.3%)and specificity(97.85%),respectively.Our results indicate a lower proportion of HIV indeterminate WB results in southeastern China compared to previous reports,and the follow-up re-examination of patients with HIV indeterminate results should be performed.Nucleic acid testing facilitates the identification of HIV infections.Shouli Wu Min Gao Jian Zheng Pingping Yan Wei Wang Xiaoli Lu Yuefeng Qiu Yansheng Yan 2019Virologica Sinica2019,34,4:15
4Contrasting Effects of Ethylene Biosynthesis on Induced Plant Resistance against a Chewing and a Piercing-Sucking Herbivore in Rice显示文摘乙烯是有在草食动物抵抗上对比效果的压力荷尔蒙。然而,这些差别是否植物特定或草食动物特定,仍然保持未知。我们克隆米饭 1-aminocyclopropane-1-carboxylic 酸(ACC ) synthase 基因, OsACS2,其抄本响应由二个重要害虫的机械伤害和群袭是很快起来调整的:有斑纹的茎 borer (SSB ) Chilo suppressalis 和棕色的 planthopper (BPH ) Nilaparvata lugens。OsACS2 (当交流) 的 Antisense 表示减少了得到的乙烯排放,得到 SSB 的胰岛素朊酶禁止者(TrypPI ) 活动,导致 SSB 的不稳定的版本,和 SSB 抵抗。ACC 的外长的申请恢复了 TrypPI 活动和 SSB 抵抗。与 SSB 相对照, BPH 群袭在当交流线增加了不稳定的排放。因此, BPH 喜欢喂并且在上产卵野类型(WT ) 能被归因于二讨厌的 volatiles, 2-heptanone 和 2-heptanol 的 plantsan 效果,那被当交流植物在更高的数量射出。BPH 蜜露排泄被减少,生来的敌人吸引力在当交流线被提高,导致到 BPH 的更高全面的抵抗。这些结果证明发信号的乙烯对咀嚼和一只穿透吸昆虫在米饭防卫回答和电阻上有形成对照的、草食动物特定的效果,并且可以调停在不同的喂的草食动物之间的抵抗交易在米饭的行业协会。Jing Lu Jiancai Li Hongping Ju Xiaoli Liu Matthias Erb Xia Wang Yonggen Lou 2014Molecular Plant2014,7,11:15
5Brain tumor-targeted drug delivery strategies显示文摘Despite the application of aggressive surgery,radiotherapy and chemotherapy in clinics,brain tumors are still a difficult health challenge due to their fast development and poor prognosis.Brain tumor-targeted drug delivery systems,which increase drug accumulation in the tumor region and reduce toxicity in normal brain and peripheral tissue,are a promising new approach to brain tumor treatments.Since brain tumors exhibit many distinctive characteristics relative to tumors growing in peripheral tissues,potential targets based on continuously changing vascular characteristics and the microenvironment can be utilized to facilitate effective brain tumor-targeted drug delivery.In this review,we briefly describe the physiological characteristics of brain tumors,including blood–brain/brain tumor barriers,the tumor microenvironment,and tumor stem cells.We also review targeted delivery strategies and introduce a systematic targeted drug delivery strategy to overcome the challenges.Xiaoli Wei Xishan Chen Man Ying Weiyue Lu 2014Acta Pharmaceutica Sinica B2014,4,3:14
6Numerical simulation and experimental investigation of natural convection heat transfer of molten salt around fine wire显示文摘In order to get the natural convection heat transfer mechanism of molten salt, the experimental investigation of natural convective heat transfer of LiNO3was studied after it was simulated by numerical calculation. Experiment was carried out on the nat-ural convection heat transfer of air and water around the fine wire using the method of Joule heating. The results showed that the natural convection heat transfer of air and water around the fine wire agreed well with Fand's correlation. Based on the aforementioned experiment, the natural convection heat transfer of molten salt LiNO3was studied by experiment and the same results were got. Therefore, the natural convection heat transfer of molten salt can be calculated by Fand's correlation, which takes into consideration the effect of viscosity dissipation.LU YuanWei LI XiaoLi LI Qiang WU YuTing MA ChongFang 2013Science China(Technological Sciences)2013,56,7:13
7The enhanced X-ray Timing and Polarimetry mission—eXTP显示文摘In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the dynamics of matter in strong-field gravity. In addition to investigating fundamental physics, eXTP will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects. In particular, its wide field monitoring capabilities will be highly instrumental to detect the electro-magnetic counterparts of gravitational wave sources.The paper provides a detailed description of:(1) the technological and technical aspects, and the expected performance of the instruments of the scientific payload;(2) the elements and functions of the mission, from the spacecraft to the ground segment.ShuangNan Zhang Andrea Santangelo Marco Feroci YuPeng Xu FangJun Lu Yong Chen Hua Feng Shu Zhang Sφren Brandt Margarita Hernanz Luca Baldini Enrico Bozzo Riccardo Campana Alessandra De Rosa YongWei Dong Yuri Evangelista Vladimir Karas Norbert Meidinger Aline Meuris Kirpal Nandra Teng Pan Giovanni Pareschi Piotr Orleanski QiuShi Huang Stephane Schanne Giorgia Sironi Daniele Spiga Jiri Svoboda Gianpiero Tagliaferri Christoph Tenzer Andrea Vacchi Silvia Zane Dave Walton ZhanShan Wang Berend Winter Xin Wu Jean J.M.in't Zand Mahdi Ahangarianabhari Giovanni Ambrosi Filippo Ambrosino Marco Barbera Stefano Basso Jörg Bayer Ronaldo Bellazzini Pierluigi Bellutti Bruna Bertucci Giuseppe Bertuccio Giacomo Borghi XueLei Cao Franck Cadoux Francesco Ceraudo TianXiang Chen Yu Peng Chen Jerome Chevenez Marta Civitani Wei Cui WeiWei Cui Thomas Dauser Ettore Del Monte Sergio Di Cosimo Sebastian Diebold Victor Doroshenko Michal Dovciak YuanYuan Du Lorenzo Ducci QingMei Fan Yannick Favre Fabio Fuschino JoséLuis Ga'lvez Min Gao MingYu Ge Olivier Gevin Marco Grassi QuanYing Gu YuDong Gu DaWei Han Bin Hong Wei Hu Long Ji ShuMei Jia WeiChun Jiang Thomas Kennedy Ingo Kreykenbohm Irfan Kuvvetli Claudio Labanti Luca Latronico Gang Li MaoShun Li Xian Li Wei Li ZhengWei Li Olivier Limousin HongWei Liu XiaoJing Liu Bo Lu Tao Luo Daniele Macera Piero Malcovati Adrian Martindale Malgorzata Michalska Bin Meng Massimo Minuti Alfredo Morbidini Fabio Muleri Stephane Paltani Emanuele Perinati Antonino Picciotto Claudio Piemonte JinLu Qu Alexandre Rachevski Irina Rashevskaya Jerome Rodriguez Thomas Schanz ZhengXiang Shen LiZhi Sheng JiangBo Song LiMing Song Carmelo Sgro Liang Sun Ying Tan Phil Uttley Bo Wang DianLong Wang GuoFeng Wang Juan Wang LangPing Wang YuSa Wang Anna L.Watts XiangYang Wen Jörn Wilms ShaoLin Xiong JiaWei Yang Sheng Yang YanJi Yang Nian Yu WenDa Zhang Gianluigi Zampa Nicola Zampa Andrzej A.Zdziarski AiMei Zhang ChengMo Zhang Fan Zhang Long Zhang Tong Zhang Yi Zhang XiaoLi Zhang ZiLiang Zhang BaoSheng Zhao ShiJie Zheng Yu Peng Zhou Nicola Zorzi J.Frans Zwart 2019Science China(Physics,Mechanics & Astronomy)2019,62,2:11
8Molecular Characterization of a Leaf Senescence-Related Transcription Factor BrWRKY75 of Chinese Flowering Cabbage显示文摘WRKY is a plant-specific transcription factor(TF) involved in the regulation of many biological processes; however, its role in leaf senescence of leafy vegetables remains unknown. In the present work, a WRKY TF, termed Br WRKY75 was isolated from Chinese flowering cabbage [Brassica rapa L. ssp. chinensis(L.) Mokino var. utilis Tsen et Lee]. Analysis of deduced amino acid sequence and the phylogenetic tree showed that Br WRKY75 has high homology with WRKY75 from Brassica oleracea and Arabidopsis thaliana, and belongs to the II c sub-group. Sub-cellular localization and transcriptional activity analysis revealed that Br WRKY75 is a nuclear protein with transcriptional repression activity, and was up-regulated during leaf senescence. Electrophoretic mobility shift assay confirmed that Br WRKY75 directly bound to the W-box(TTGAC) cis-element. Collectively,these results provide a basis for further investigation of the transcriptional regulation of Chinese flowering cabbage leaf senescence.TAN Xiaoli FAN Zhongqi LI Lulu WU Ya KUANG Jianfei LU Wangjin CHEN Jianye 2016Horticultural Plant Journal2016,2,5:11
9Analysis of a 1 kW organic Rankine cycle using a scroll expander for engine coolant and exhaust heat recovery显示文摘引擎浪费热恢复技术的发展由于升起吸引曾经增加的兴趣严格的政策要求和环境担心。这份报纸论述了引擎冷却剂的学习并且用器官的 Rankine 周期(海怪) 用尽热恢复。八个工作液体被选择评估并且比较综合浪费热恢复系统的性能。而非主要集中于利用的常规引擎海怪系统用尽精力,这个工作建议充分由改变海怪系统的设计参数使用引擎冷却剂精力。案例研究作为热来源选择了一台小引擎为力量生产用滚动扩展驾驶海怪系统。评估结果建议那在引擎下面评估了状况,充分恢复引擎冷却剂精力的解决方案能比常规引擎海怪系统的完成更高的发电表演。结果建议那补充说当工作液体是干燥的,外套倾倒系统的热需求时,到 ORC 系统的一个恢复者能潜在地改进系统表演能被 12% 在最佳的条件下面减少。当蒸发的 ORC 和压缩温度分别地被放在 85C 和 30C 时,综合引擎浪费热恢复系统能作为工作液体与 R600, R600a 或 n 戊烷在 9.3% 改进全面系统效率。Yiji LU Anthony Paul ROSKILLY Long JIANG Longfei CHEN Xiaoli YU 2017Frontiers in Energy2017,11,4:10
10A draft sequence of the rice (Oryza sativa ssp. indica) genome显示文摘The sequence of the rice genome holds fundamental information for its biology, including physiology, genetics, development, and evolution, as well as information on many beneficial phenotypes of economic significance. Using a 'whole genome shotgun' approach, we have pro-duced a draft rice genome sequence of Oryza sativa ssp. in-dica, the major crop rice subspecies in China and many other regions of Asia. The draft genome sequence is constructed from over 4.3 million successful sequencing traces with an accumulative total length of 2214.9 Mb. The initial assembly of the non-redundant sequences reached 409.76 Mb in length, based on 3.30 million successful sequencing traces with a total length of 1797.4 Mb from an indica variant cultivar 93-11, giving an estimated coverage of 95.29% of the rice genome with an average base accuracy of higher than 99%. The coverage of the draft sequence, the randomness of the sequence distribution, and the consistency of BIG-ASSEM-BLER, a custom-designed software packageYU Jun, HU Songnian, WANG Jun,LI Songgang WONG Ka-Shu Gane, LIU Bin,DENG Yajun, DAI Li, ZHOU Yan,ZHANG Xiuqing, CAO Mengliang, LIU Jing,SUN Jiandong , TANG Jiabin, CHEN Yanjiong,HUANG Xiaobing, LIN Wei, YE Chen, TONG Wei,CONG Lijuan, GENG Jianing, HAN Yujun, LI Lin,LI Wei, HU Guangqiang, HUANG Xiangang,LI Wenjie, LI Jian, LIU Zhanwei, LI Long,LIU Jianping, Ql Qiuhui, LIU Jinsong, LI Li,WANG Xuegang, LU Hong, WU Tingling,ZHU Miao, Nl Peixiang, HAN Hua, DONG Wei,REN Xiaoyu, FENG Xiaoli, GUI Peng,LI Xianran, WANG Hao, XU Xin, ZHAI Wenxue,XU Zhao, ZHANG Jinsong, HE Sijie,ZHANG Jianguo, XU Jichen, ZHANG Kunlin,ZHENG Xianwu, DONG Jianhai, ZENG Wanyong,TAO Lin, CHEN Xuewei, HE Jun, LIU Daofeng,TIAN Wei, TIAN Chaoguang, XIA Hongai,LI Gang, GAO Hui, LI Ping, CHEN Wei ,WANG Xudong, ZHANG Yong, HU Jianfei,WANG Jing, LIU Song, YANG Jian,ZHANG Guangyu, XIONG Yuqing, LI Zhijie,MAO Long, ZHOU Chengshu, ZHU Zhen,CHEN Runsheng, HAO Bailin,ZHENG Weimou, CHEN Shouyi, QUO Wei,LI Guojie, LIU Siqi, HUANG Guyang,TAO Ming, WANG Jian, ZHU Lihuang,YUAN Longping& YANG HuanmingBeijing Genomics Institute/Center of Genomics & Bioinformatics, Chinese Academy of Sciences, Beijing 101300, China Hangzhou Genomics Institute/Institute of Bioinformatics of Zhejiang University/Key Laboratory of Bioinformatics of Zhejiang Province, Hangzhou 310007, China Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China National Hybrid Rice R & D Center, Changsha 410125, China Laboratory of Bioinformatics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China College of Life Sciences, Peking University, Beijing 100871, China Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1Q0080, China Digital China Ltd., Beijing 100080, China Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080, China Medical College, Xi’an Jiaotong University, Xi’an 710061, ChinaThese authors contributed equally to this work.Corresponding author.Corresponden 2001Chinese Science Bulletin2001,46,23:6
11A single circular chromosome yeast显示文摘Dear editor,Most of the prokaryotic cells contain a single circular chromosome.In contrast, the eukaryotic cells usually contain multiple linear chromosomes. Recently, we artificially created a single linear chromosome yeast strain SY14 from native 16 chromosomes in a haploid Saccharomyces cerevisiae, which displays minor fitness defects.^1 In this study, we have created a new yeast strain which contains a single circular chromosome and apparently has not been found in nature.Yangyang Shao Ning Lu Chen Cai Fan Zhou Shanshan Wang Zhihu Zhao Guoping Zhao Jin-Qiu Zhou Xiaoli Xue Zhongjun Qin 2019Cell Research2019,29,1:5
12Bevacizumab biosimilar LY01008 compared with bevacizumab(Avastin)as first-line treatment for Chinese patients with unresectable,metastatic,or recurrent non-squamous non-small-cell lung cancer:A multicenter,randomized,double-blinded,phase Ⅲ trial显示文摘Background:Previous studies have demonstrated the preclinical pharmacological and toxicological consistency,and clinical pharmacokinetic equivalence of bevacizumab biosimilar LY01008 with reference bevacizumab(Avastin).This randomized controlled trial aimed to compare the efficacy and safety of LY01008 with Avastin in first-line treatment of Chinese patients with advanced or recurrent non-squamous non-small cell lung cancer(NSCLC).Methods:StageⅢB-ⅣNSCLC patients with evaluable lesions,good physical status,and adequate organ functions from 67 centers across China were randomized in a ratio of 1:1 to receive LY01008 or Avastin 15 mg/kg intravenously in combination with paclitaxel/carboplatin(combined treatment)for 4-6 cycles,followed by maintenance monotherapy with LY01008 until disease progression,intolerable toxicity,or death.The primary endpoint was objective response rate(ORR)in accordance with Response Evaluation Criteria in Solid Tumors(RECIST)version 1.1 confirmed by independent radiological review committees(IRRC).Secondary endpoints included disease control rate(DCR),duration of response(DoR),progression-free survival(PFS),overall survival(OS),and safety.This study was registered in Clinical Trials.gov(NCT03533127).Results:Between December 15^(th),2017,and May 15^(th),2019,a total of 649 patients were randomized to the LY01008(n=324)or Avastin(n=325)group.As of September 25th,2019 for primary endpoint analysis,589 patients received ORR evaluation,with a median number of combined treatment cycles of 5(range 1-6)andmedian duration of treatment of 3.0(range 0.0-5.1)months.ORRof responseevaluable patients in the LY01008 and Avastin groups were 48.5% and 53.0%,respectively.The stratified ORR ratio was 0.91(90%CI 0.80-1.04,within the prespecified equivalence margin of 0.75-1.33).Up to May 15^(th),2020,with a median follow-up of 13.6(range 0.8-28.4)months,no notable differences in DCR,median DoR,median PFS,median OS,and 1-year OS rate were observed between the LY01008 and Avastin groups.There were no clinically meaningful differences in safety and immunogenicity across treatment groups.Conclusions:LY01008 demonstrated similarity to Avastin in terms of efficacy and safety in Chinese patients with advanced or recurrent non-squamous NSCLC.LY01008 combined with paclitaxel/carboplatin is expected to become a new treatment option for unresectable,metastatic,LY01008 and Avastin groups.There were no clinically meaningful differences in safety and immunogenicity across treatment groups.Conclusions:LY01008 demonstrated similarity to Avastin in terms of efficacy and safety in Chinese patients with advanced or recurrent non-squamous NSCLC.LY01008 combined with paclitaxel/carboplatin is expected to become a new treatment option for unresectable,metastatic,or recurrent non-squamous NSCLC patients in the first-line setting.Yuankai Shi Kaijian Lei Yuming Jia Bingqiang Ni Zhiyong He Minghong Bi Xicheng Wang Jianhua Shi Ming Zhou Qian Sun Guolei Wang Dongji Chen Yongqian Shu Lianke Liu Zhongliang Guo Yong Liu Junquan Yang Ke Wang Ke Xiao LinWu Tienan Yi Debin Sun Mafei Kang Tianjiang Ma Yimin Mao Jinsheng Shi Tiegang Tang Yan Wang Puyuan Xing Dongqing Lv Wangjun Liao Zhiguo Luo Bin Wang Xiaohong Wu Xiaoli Zhu Shuhua Han Qisen Guo Rongyu Liu Zhiwei Lu Jianyong Zhang Jian Fang Changlu Hu Yinghua Ji Guolong Liu Hong Lu Dedong Wu Junhong Zhang Shuyang Zhu Zheng Liu Wensheng Qiu Feng Ye Yan Yu Yanqiu Zhao Qinhong Zheng Jun Chen Zhanyu Pan Yiping Zhang Wenjuan Lian Bo Jiang Bo Qiu Guojun Zhang Hua Zhang Yanju Chen Yuan Chen Hongbing Duan Manxiang Li Shengming Liu Lijun Ma Hongming Pan Xia Yuan Xueli Yuan Yulong Zheng Emei Gao Li Zhao Shumin Wang Can Wu 2021Cancer Communications2021,41,9:5
13An Arabidopsis thaliana (Ler) inbred line AFDL exhibiting abnormal flower development mainly caused by reduced AP1 expression显示文摘The genetic network controlling flowering and flower development consists of a set of floral integrator genes that play a role in light sensing,hormone signaling and developmental pathways.These integrators activate the expression of meristem identity genes LEAFY (LFY) and APETALA1 (AP1) to initiate the flowering transition.However,how the expression of key genes,such as AP1,responds to diverse signals during flower development remains largely unknown.Here,we report that an Arabidopsis abnormal flower development inbred line (AFDL) exhibits a phenotype similar to the ap1 mutant,with delayed flowering time and a high frequency of transition of flower meristems into inflorescence meristems after flowering.The flower organs with an abnormal first whorl lack the second whorl and the increased number of inflorescences at the first-and second-whorl positions most closely resembled the phenotypes of ap1/cal double mutants.Interestingly,both normal and abnormal flowers coexisted in a single individual.Microarray and quantitative real-time PCR analysis revealed that the expression of AP1 was significantly reduced,while the expression of its interacting genes TERMINAL FLOWER 1 (TFL1),SHORT VEGETATIVE PHASE (SVP),AGAMOUS-like 24 (AGL24),SEPALLATA (SEP) and CAULIFLOWER (CAL) and upstream genes FLOWERING LOCUS C (FLC) and FLM were increased in AFDL,which could serve to explain its phenotype.The expression of genes responsive to different stimuli dramatically changed in AFDL relative to the wild type,as revealed by the differential display of transcripts,indicating that this expression variation is subject to a threshold,leading to an on/off expression pattern of the master regulatory gene (such as AP1) of flower development.QI XiaoLi JIANG Yao TANG Fang WANG MinJie HU JianJun ZHAO ShuTang SHA Wei LU MengZhu 2011Chinese Science Bulletin2011,56,1:4
14KRAS-G12D mutation drives immune suppression and the primary resistance of anti-PD-1/PD-L1 immunotherapy in non-small cell lung cancer显示文摘Background:Although immune checkpoint inhibitors(ICIs)against programmed cell death protein 1(PD-1)and its ligand PD-L1 have demonstrated potency towards treating patients with non-small cell lung carcinoma(NSCLC),the potential association between Kirsten rat sarcoma viral oncogene homolog(KRAS)oncogene substitutions and the efficacy of ICIs remains unclear.In this study,we aimed to find point mutations in the KRAS gene resistant to ICIs and elucidate resistance mechanism.Methods:The association between KRAS variant status and the efficacy of ICIs was explored with a clinical cohort(n=74),and confirmed with a mouse model.In addition,the tumor immune microenvironment(TIME)of KRASmutant NSCLC,such as CD8+tumor-infiltrating lymphocytes(TILs)and PD-L1 level,was investigated.Cell lines expressing classic KRAS substitutions were used to explore signaling pathway activation involved in the formation of TIME.Furthermore,interventions that improved TIME were developed to increase responsiveness to ICIs.Results:We observed the inferior efficacy of ICIs in KRAS-G12D-mutant NSCLC.Based upon transcriptome data and immunostaining results from KRAS-mutant NSCLC,KRAS-G12D point mutation negatively correlated with PD-L1 level and secretion of chemokines CXCL10/CXCL11 that led to a decrease in CD8+TILs,which in turn yielded an immunosuppressive TIME.The analysis of cell lines overexpressing classic KRAS substitutions further revealed that KRAS-G12D mutation suppressed PD-L1 level via the P70S6K/PI3K/AKT axis and reduced CXCL10/CXCL11 levels by down-regulating high mobility group protein A2(HMGA2)level.Notably,paclitaxel,a chemotherapeutic agent,upregulated HMGA2 level,and in turn,stimulated the secretion of CXCL10/CXCL11.Moreover,PD-L1 blockade combined with paclitaxel significantly suppressed tumor growth compared with PD-L1 inhibitor monotherapy in a mouse model with KRAS-G12D-mutant lung adenocarcinoma.Further analyses revealed that the combined treatment significantly enhanced the recruitment of CD8+TILs via the up-regulation of CXCL10/CXCL11 levels.Results of clinical study also revealed the superior efficacy of chemo-immunotherapy in patients with KRAS-G12D-mutant NSCLC compared with ICI monotherapy.Conclusions:Our study elucidated the molecular mechanism by which KRASG12D mutation drives immunosuppression and enhances resistance of ICIs in NSCLC.Importantly,our findings demonstrate that ICIs in combination with chemotherapy may be more effective in patients with KRAS-G12D-mutant NSCLC.Chengming Liu Sufei Zheng Zhanyu Wang Sihui Wang Xinfeng Wang Lu Yang Haiyan Xu Zheng Cao Xiaoli Feng Qi Xue Yan Wang Nan Sun Jie He 2022Cancer Communications2022,42,9:4
15Development of small molecule extracellular signal-regulated kinases(ERKs) inhibitors for cancer therapy显示文摘The mitogen-activated protein kinase(MAPK)/extracellular signal-regulated kinase 1/2(ERK1/2) signaling pathway is widely activated by a variety of extracellular stimuli, and its dysregulation is associated with the proliferation, invasion, and migration of cancer cells. ERK1/2 is located at the distal end of this pathway and rarely undergoes mutations, making it an attractive target for anticancer drug development. Currently, an increasing number of ERK1/2 inhibitors have been designed and synthesized for antitumor therapy, among which representative compounds have entered clinical trials. When ERK1/2 signal transduction is eliminated, ERK5 may provide a bypass route to rescue proliferation, and weaken the potency of ERK1/2 inhibitors. Therefore, drug research targeting ERK5 or based on the compensatory mechanism of ERK5 for ERK1/2 opens up a new way for oncotherapy. This review provides an overview of the physiological and biological functions of ERKs, focuses on the structure-activity relationships of small molecule inhibitors targeting ERKs, with a view to providing guidance for future drug design and optimization, and discusses the potential therapeutic strategies to overcome drug resistance.Xiaoli Pan Junping Pei Aoxue Wang Wen Shuai Lu Feng Faqian Bu Yumeng Zhu Lan Zhang Guan Wang Liang Ouyang 2022Acta Pharmaceutica Sinica B2022,12,5:4
16Silver nanocrystals sensitize magnetic-nanoparticle-mediated thermo-induced killing of cancer cells显示文摘磁性的 nanoparticles (MNP ) 能加热肿瘤纸巾起来并且导致在外部交流磁场下面癌症房间杀死。然而,磁性的 nanoparticles 过高热(MNPH ) 要求被注入肿瘤以便因为复杂的热转移,在 vivo 和 MNP 的有限的热质量获得临床上需要的热剂量的 MNP 的高集中。为了切,击倒 MNP 的剂量并且提高这 Nanotherapy 的效果,我们与不同尺寸准备了银 nanoparticles (AgNPs ) 并且在 MNPH 治疗在癌症房间上调查了这些 AgNPs 的效果。AgNPs 能提高 glioma 房间的 thermo 敏感,这效果是尺寸依赖者,这被发现。AgNPs 能导致在 G2/M 阶段逮捕并且在过高热以后提高了癌症房间的 apoptosis 率的房间周期。在适用的老鼠建模的 glioma,与 AgNPs 相结合的 MNPH 能在癌症房间提高 Bax 表示。我们的结果建议 AgNPs 能是潜在的 thermo 敏化并且能进一步为 MNPH 治疗为 Ag 基于 nanostructure 的热种子的设计被开发。Lianke Liu Fang Ni Jianchao Zhang Xiaoli Jiang Xiang Lu Zhirui Guo Ruizhi Xu 2011Acta Biochimica et Biophysica Sinica2011,43,4:4
17Research progress of nanocellulose for electrochemical energy storage:A review显示文摘Recently, in response to the major challenges in energy development and environmental issues, tremendous efforts are being devoted to developing electrochemical energy storage devices based on green sustainable resources. As a class of green materials, nanocellulose(NC) has received extensive attention. In this review, we summarize the research progress of NC derived materials in electrochemical energy storage. Specifically, we first introduce various synthesis methods based on NC and the pretreatment process to increase the conductivity. Then we focus on the specific application of NC in electrochemical energy storage devices. Finally, we summarize the previously reported work and put forward views on the further development of NC in the field of electrochemical energy storage.Ruiqi Guo Lixue Zhang Yun Lu Xiaoli Zhang Dongjiang Yang 2020Journal of Energy Chemistry2020,29,12:4
18Associations of PGK1 promoter hypomethylation and PGK1-mediated PDHK1 phosphorylation with cancer stage and prognosis:a TCGA pan-cancer analysis显示文摘Background:Cancer cells reprogram metabolism for proliferation.Phosphoglycerate kinase 1(PGK1),as a glycolytic enzyme and newly identified protein kinase,coordinates glycolysis and mitochondrial metabolism.However,the clini-cal significance of PGK1 expression and function in cancer progression is unclear.Here,we investigated the relation-ship between the progression and prognosis of multiple cancer types and PGK1 expression and its function in the mitochondrial metabolism regulation.Methods:We performed pan-cancer analyses of PGK1 mRNA level and DNA methylation in 11,908 tumor tissues and 1582 paired normal tissues across 34 cancer types in The Cancer Genome Atlas datasets.Using specific antibodies against PGK1 S203 and PDHK1 T338 phosphorylation,we performed immunohistochemistry with tissue microarray assay in additional 818 cancer cases with 619 paired normal tissues from five cancer types.Results:The PGK1 mRNA level was significantly elevated with hypomethylation in promotor regions and associated with advanced TNM stage in 15 and four cancer types,respectively.In breast carcinoma,elevated PGK1 mRNA level and promoter hypomethylation were associated with poor prognosis.Positively correlated PGK1 S203 and PDHK1 T338 phosphorylation levels were significantly associated with short overall survival(OS)in cancers of the breast,liver,lung,stomach,and esophagus and with advanced TNM stage in breast and esophageal cancers.PGK1 pS203 and PDHK1 pT338 were also independent predictors of short OS in liver,lung,and stomach cancer.Conclusions:The elevated expression,promoter hypomethylation,and phosphorylation of PGK1 and PDHK1 were related with disease progression and short OS in diverse types of cancer.PGK1 and PDHK1 phosphorylation may be potential prognostic biomarkers.Fei Shao Xueying Yang Wei Wang Juhong Wang Wei Guo Xiaoli Feng Susheng Shi Qi Xue Shugeng Gao Yibo Gao Zhimin Lu Jie He 2019Cancer Communications2019,39,1:4
19PSA controls hepatic lipid metabolism by regulating the NRF2 signaling pathway显示文摘The activity of proteinase is reported to correlate with the development and progression of nonalcoholic fatty liver disease(NAFLD).Puromycin-sensitive aminopeptidase(PSA/NPEPPS)is an integral nontransmembrane enzyme that functions to catalyze the cleavage of amino acids near the N-terminus of polypeptides.A previous study suggested that this enzyme acts as a regulator of neuropeptide activity;however,the metabolic function of this enzyme in the liver has not been explored.Here,we identified the novel role of PSA in hepatic lipid metabolism.Specifically,PSA expression was lower in fatty livers from NAFLD patients and mice(HFD,ob/ob,and db/db).PSA knockdown in cultured hepatocytes exacerbated diet-induced triglyceride accumulation through enhanced lipogenesis and attenuated fatty acid β-oxidation.Moreover,PSA mediated activation of the master regulator of antioxidant response,nuclear factor erythroid 2-related factor 2(NRF2),by stabilizing NRF2 protein expression,which further induced downstream antioxidant enzymes to protect the liver from oxidative stress and lipid overload.Accordingly,liver-specific PSA overexpression attenuated hepatic lipid accumulation and steatosis in ob/ob mice.Furthermore,in human liver tissue samples,decreased PSA expression correlated with the progression of NAFLD.Overall,our findings suggest that PSA is a pivotal regulator of hepatic lipid metabolism and its antioxidant function occurs by suppressing NRF2 ubiquitination.Moreover,PSA may be a potential biomarker and therapeutic target for treating NAFLD.Bangliang Huang Xin Xiong Linlin Zhang Xiufei Liu Yuren Wang Xiaoli Gong Qian Sang Yongling Lu Hua Qu Hongting Zheng Yi Zheng 2021Journal of Molecular Cell Biology2021,13,7:4
20Evolution of permafrost in Northeast Chinasince the Late Pleistocene显示文摘In Northeast China, permafrost advanced and retreated several times under the influences of fluctuating paleo-climates and paleo-environments since the Late Pleistocene. During the last 60 years, many new data were obtained and studies were conducted on the evolution of permafrost in Northeast China, but so far no systematic summary and review have been made. Based on sedimentary sequences, remains of past permafrost, paleo-flora and-fauna records, and dating data, permafrost evolution since the Late Pleistocene has been analyzed and reconstructed in this paper. Paleo-temperatures reconstructed from the remains of past permafrost and those from paleo-flora and-fauna are compared, and thus the southern limit of permafrost(SLP) in each climate period is inferred by the relationship of the permafrost distribution and the mean annual air/ground temperatures(MAAT/MAGT). Thus, the evolutionary history of permafrost is here divided into five stages:(1) the Late Pleistocene(Last Glaciation, or LG)(65 to 10–8.5 ka), the Last Glaciation Maximum(LGM, 21–13 ka) in particular, the coldest period in the latest history with a cooling of about 6~10 ?C, characterized by extensive occurrences of glaciation, flourishing Mammathas-Coelodonta Faunal Complex(MCFC), widespread aeolian deposits, and significant sea level lowering, and permafrost greatly expanded southwards almost to the coastal plains(37?N–41?N);(2) the Holocene Megathermal Period(HMP, 8.5–7.0 to 4.0–3.0 ka), 3~5 ?C warmer than today, permafrost retreated to about 52°N;(3) the Late Holocene Cold Period(Neoglaciation)(4.0–3.0 to 1.0–0.5 ka), a cooling of 1~3 ?C, some earlier thawed permafrost was refrozen or attached, and the SLP invaded southwards to 46?N;(4) the Little Ice Age(LIA, 500 to 100–150 a), the latest cold period with significant permafrost expansion; and(5) climate warming since the last century, during which Northeast China has undergone extensive permafrost degradation. The frequent and substantial expansions and retreats of permafrost have greatly impacted cold-region environments in Northeast China. North of the SLP during the HMP, or in the present continuous permafrost zone, the existing permafrost was largely formed during the LG and was later overlapped by the permafrost formed in the Neoglaciation. To the south, it was formed in the Neoglaciation. However, many aspects of permafrost evolution still await further investigations, such as data integration, numerical reconstruction, and merging of Chinese permafrost history with those of bordering regions as well as collaboration with related disciplines. Of these, studieson the evolution and degradation of permafrost during the past 150 years and its hydrological, ecological, and environmental impacts should be prioritized.HuiJun Jin XiaoLi Chang DongLiang Luo RuiXia He LanZhi Lu SiZhong Yang DongXin Guo XueMei Chen Stuart A.Harris 2016Research in Cold and Arid Regions2016,8,4:3
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