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Designing Bioorthogonal Reactions for Biomedical Applications

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Research 2024年第3期2023卷 625-650页

作者： Qingfei Zhang Gaizhen Kuang Li Wang Ping duan Weijian Sun Fangfu Ye Wenzhou Institute University of Chinese Academy of SciencesWenzhou 325001China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China. Department of Obstetrics and Gynecology The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiang 325027China. Department of Gastrointestinal Surgery The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhou325027China.

Bioorthogonal reactions are a class of chemical reactions that can be carried out in living organisms without interfering with other reactions, possessing high yield, high selectivity, and high efficiency. Since the first proposal of the conception by Professor Carolyn Bertozzi in 2003, bioorthogonal chemistry has attracted great attention and has been quickly developed. As an important chemical biology tool, bioorthogonal reactions have been applied broadly in biomedicine, including bio-labeling, nucleic acid functionalization, drug discovery, drug activation, synthesis of antibody–drug conjugates, and proteolysis-targeting chimeras. Given this, we summarized the basic knowledge, development history, research status, and prospects of bioorthogonal reactions and their biomedical applications. The main purpose of this paper is to furnish an overview of the intriguing bioorthogonal reactions in a variety of biomedical applications and to provide guidance for the design of novel reactions to enrich bioorthogonal chemistry toolkits.

关键词： orthogonal summarized chemistry

Structure Engineering of Layered Double Hydroxides(LDHs)for Heterogeneous Catalysis

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Chemical Research in Chinese Universities 2024年第4期40卷 590-610页

作者： GAO Zhexi MA Haoran WANG Qian LI Dianqing FENG Junting duan Xue State Key Laboratory of Chemical Resource Engineering Beijing Engineering Center for Hierarchical CatalystsBeijing University of Chemical TechnologyBeijing100029P.R.China Quzhou Institute for Innovation in Resource Chemical Engineering Quzhou324000P.R.China

Layered double hydroxide(LDH)is regarded as an advanced platform material in catalysis and attracts vast attrition *** a kind of two-dimensional layered material,it exhibits great advantages including cation-tunability in layer,lattice limitation,topological transformation,ion exchange and intercalation *** also can be used as building blocks for composite catalytic *** 100 years,a large number of works have been accomplished and researchers made great progress on investigating the LDH-based catalytic *** this review,we summarize representative achievements and significant progress in recent years,which mainly include constructing high entropy catalytic material,high dispersion/stability and interfacial supported catalytic material,composite catalytic materials and nano-reactor based on ***,through collecting the excellent works,we conclude the future development potential of LDH and provide a perspective.

关键词： Layered double hydroxide(LDH)material Heterogeneous catalysis Structure engineering

Bird specimen number linked with species trait and climate niche breadth

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Avian Research 2024年第1期15卷 108-115页

作者： Xiaoyu duan Xiongwei Huang Jingya Zhang Shuo Lv Gang Song Yanping Wang Gang Feng Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau&Inner Mongolia Key Laboratory of Grassland Ecology School of Ecology and EnvironmentInner Mongolia UniversityHohhot010020China Key Laboratory of Marine Biotechnology of Fujian Province Institute of OceanologyCollege of Marine SciencesFujian Agriculture and Forestry UniversityFuzhou350002China Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing100101China Laboratory of Island Biogeography and Conservation Biology College of Life SciencesNanjing Normal UniversityNanjing210023China

Biological specimens are fundamental for taxonomy and flora/fauna *** importantly,they also play crucial roles in recording environmental impacts on morphology and behavior,which is vital for biodiversity research and ***,there are few systematic studies on the patterns and drivers of bird specimen number at regional *** study is the first attempt to examine the relationships between bird specimen number and species traits as well as climate niche breadth in China,aiming to answer two questions:1)how do species’temperature niche breadth and precipitation niche breadth influence specimen number?2)which trait is most associated with bird specimen number?The associations between bird specimen number and explanatory variables were examined using ordinary least squares,generalized linear models,phylogenetic generalized linear mixed models,and multiple *** results showed that Muscicapidae was the family with the highest specimen number,and Passeriformes was the order with the highest specimen *** specimen number significantly increased with larger temperature niche breadth and precipitation niche *** number was also positively associated with geographic range size,habitat specificity,hunting vulnerability and clutch size,but negatively associated with body *** findings suggest that future bird specimen collection should pay more attention to birds with limited ecological niches,large body sizes,and small clutch *** research enhances the use of bird specimen data to study and preserve biodiversity.

关键词： Biodiversity conservation Biological specimens Bird traits Scientific collection Specimen number Temperature and precipitation

BrrTCP4b interacts with BrrTTG1 to suppress the development of trichomes in Brassica rapa var. rapa

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Plant Diversity 2024年第3期46卷 416-420页

作者： Cheng Li Li Zhang Hefan Li Yuanwen duan Xuemei Wen Yongping Yang Xudong Sun The Germplasm Bank of Wild Species Yunnan Key Laboratory of Crop Wild Relatives OmicsInstitute of Tibetan Plateau Research at KunmingKunming Institute of BotanyChinese Academy of SciencesKunming 650201China University of Chinese Academy of Sciences BeijingChina Tibet Plateau Institute of Biology Lhasa 850001TibetChina

The number of trichomes significantly increased in CRISPR/Cas9-edited BrrTCP4b turnip(Brassica rapa ***)***,the underlying molecular mechanism remains to be *** this study,we performed the Y2H screen using BrrTCP4b as the bait,which unveiled an interaction between BrrTCP4b and BrrTTG1,a pivotal WD40-repeat protein transcription factor in the MYB-bHLH-WD40(MBW)*** physical interaction was further validated through bimolecular luciferase complementation and ***,it was found that the interaction between BrrTCP4b and BrrTTG1 could inhibit the activity of MBW complex,resulting in decreased expression of BrrGL2,a positive regulator of trichomes *** contrast,AtTCP4 is known to regulate trichomes development by interacting with AtGL3 in Arabidopsis ***,this study revealed that BrrTCP4b is involved in trichome development by interacting with BrrTTG1 in turnip,indicating a divergence from the mechanisms observed in model plant *** findings contribute to our understanding of the regulatory mechanisms governing trichome development in the non-model plants turnip.

关键词： TCP transcription factor MBW complex Trichome development Turnip

Species’ geographical range, environmental range and traits lead to specimen collection preference of dominant plant species of grasslands in Northern China

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Plant Diversity 2024年第3期46卷 353-361页

作者： Jingya Zhang Cui Xiao Xiaoyu duan Xin Gao Hao Zeng Rong'an Dong Gang Feng Keping Ma Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau&Inner Mongolia Key Laboratory of Grassland Ecology School of Ecology and EnvironmentInner Mongolia UniversityHohhot 010021China State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China

Many different factors,such as species traits,socio-economic factors,geographical and environmental factors,can lead to specimen collection *** study aims to determine whether grassland specimen collection in China is preferred by species traits(i.e.,plant height,flowering and fruiting period),environmental range(i.e.,the temperature and precipitation range)and geographical range(i.e.,distribution range and altitudinal range).Ordinary least squares models and phylogenetic generalized linear mixed models were used to analyze the relationships between specimen number and the explanatory *** Forest models were then used to find the most parsimonious multivariate *** results showed that interannual variation in specimen number between 1900 and 2020 was *** number of these species in southeast China was notably lower than that in northwest *** range and geographical range of species had significant positive correlations with specimen *** addition,there were relatively weak but significant associations between specimen number and species trait(i.e.,plant height and flowering and fruiting period).Random Forest models indicated that distribution range was the most important variable,followed by flowering and fruiting period,and altitudinal *** findings suggest that future floristic surveys should pay more attention to species with small geographical range,narrow environmental range,short plant height,and short flowering and fruiting *** correction of specimen collection preference will also make the results of species distribution model,species evolution and other works based on specimen data more accurate.

关键词： Biological specimen Collection preference Dominant plant species Environmental range Geographical range Species traits

Visualizing Wallerian degeneration in the corticospinal tract after sensorimotor cortex ischemia in mice

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Neural Regeneration Research 2024年第3期19卷 636-641页

作者： Jiao Mu Liufang Hao Zijue Wang Xuyang Fu Yusen Li Fei Hao Hongmei duan Zhaoyang Yang Xiaoguang Li Beijing Key Laboratory for Biomaterials and Neural Regeneration School of Biological Science and Medical EngineeringBeihang UniversityBeijingChina Department of Neurobiology School of Basic Medical SciencesCapital Medical UniversityBeijingChina

Stroke can cause Wallerian degeneration in regions outside of the brain,particularly in the corticospinal *** investigate the fate of major glial cells and axons within affected areas of the corticospinal tract following stroke,we induced photochemical infarction of the sensorimotor cortex leading to Wallerian degeneration along the full extent of the corticospinal *** first used a routine,sensitive marker of axonal injury,amyloid precursor protein,to examine Wallerian degeneration of the corticospinal *** antibody to amyloid precursor protein mapped exclusively to proximal axonal segments within the ischemic cortex,with no positive signal in distal parts of the corticospinal tract,at all time *** improve visualization of Wallerian degeneration,we next utilized an orthograde virus that expresses green fluorescent protein to label the corticospinal tract and then quantitatively evaluated green fluorescent protein-expressing *** this approach,we found that axonal degeneration began on day 3 post-stroke and was almost complete by 7 days after *** addition,microglia mobilized and activated early,from day 7 after stroke,but did not maintain a phagocytic state over ***,astrocytes showed relatively delayed mobilization and a moderate response to Wallerian ***,no anterograde degeneration of spinal anterior horn cells was observed in response to Wallerian degeneration of the corticospinal *** conclusion,our data provide evidence for dynamic,pathogenic spatiotemporal changes in major cellular components of the corticospinal tract during Wallerian degeneration.

关键词： corticospinal tract green fluorescent protein microglia spinal anterior horn cells stroke virus trace Wallerian degeneration

Activation of endogenous neurogenesis and angiogenesis by basic fibroblast growth factor-chitosan gel in an adult rat model of ischemic stroke

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Neural Regeneration Research 2024年第2期19卷 409-415页

作者： Hongmei duan Shulun Li Peng Hao Fei Hao Wen Zhao Yudan Gao Hui Qiao Yiming Gu Yang Lv Xinjie Bao Kin Chiu Kwok-Fai So Zhaoyang Yang Xiaoguang Li Department of Neurobiology School of Basic Medical SciencesCapital Medical UniversityBeijingChina Beijing Key Laboratory for Biomaterials and Neural Regeneration School of Engineering MedicineBeihang UniversityBeijingChina Department of Epidemiology and Statistics School of Public Health and ManagementNingxia Medical UniversityYinchuanNingxia Hui Autonomous RegionChina Department of Physical Education Capital University of Economics and BusinessmBeijingChina Department of Neurosurgery Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Department of Psychology State Key Lab of Brain and Cognitive SciencesThe University of Hong KongHong Kong Special Administration RegionChina Guangdong-Hongkong-Macao Institute of CNS Regeneration Ministry of Education CNS Regeneration Collaborative Joint LaboratoryJinan UniversityGuangzhouGuangdong ProvinceChina Bioland Laboratory(Guangzhou Regenerative Medicine and Health Guangdong Laboratory) GuangzhouGuangdong ProvinceChina Department of Ophthalmology and State Key Laboratory of Brain and Cognitive Sciences The University of Hong KongHong Kong Special Administration RegionChina Center for Brain Science and Brain-Inspired Intelligence Guangdong-Hong Kong-Macao Greater Bay AreaGuangzhouGuangdong ProvinceChina Co-innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Biomedical Engineering School of Biological Science and Medical EngineeringBeihang UniversityBeijingChina

Attempts have been made to use cell transplantation and biomaterials to promote cell proliferation,differentiation,migration,and survival,as well as angiogenesis,in the context of brain ***,whether bioactive materials can repair the damage caused by ischemic stroke by activating endogenous neurogenesis and angiogenesis is still *** this study,we applied chitosan gel loaded with basic fibroblast growth factor to the stroke cavity 7 days after ischemic stroke in *** gel slowly released basic fibroblast growth factor,which improved the local microenvironment,activated endogenous neural stem/progenitor cells,and recruited these cells to migrate toward the penumbra and stroke cavity and subsequently differentiate into neurons,while enhancing angiogenesis in the penumbra and stroke cavity and ultimately leading to partial functional *** study revealed the mechanism by which bioactive materials repair ischemic strokes,thus providing a new strategy for the clinical application of bioactive materials in the treatment of ischemic stroke.

关键词： adult endogenous neurogenesis angiogenesis basic fibroblast growth factor-chitosan gel chitosan functional recovery ischemic stroke neural stem cell newborn neuron

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距下制动器治疗成人扁平足的研究进展

中国矫形外科杂志 2024年第5期32卷 428-433页

作者：段志豪周游三峡大学附属仁和医院骨科湖北宜昌443000

距下关节制动器以其创伤小、恢复快、容易操作得到了临床医生一定程度的认可,其作为治疗儿童扁平足的手术方式取得了很好的效果,而其对于治疗成人获得性扁平足来说,虽然临床疗效一直存在争议,但仍然得到了部分学者的肯定。作者查阅了近... 详细信息

距下关节制动器以其创伤小、恢复快、容易操作得到了临床医生一定程度的认可,其作为治疗儿童扁平足的手术方式取得了很好的效果,而其对于治疗成人获得性扁平足来说,虽然临床疗效一直存在争议,但仍然得到了部分学者的肯定。作者查阅了近年国内外有关距下关节制动器治疗成人获得性扁平足的相关文献,从成人获得性扁平足畸形分期分型、制动器分型和临床疗效等方面新进展作一综述。

关键词：距下关节制动器成人获得性扁平足分期临床疗效研究进展

基于生物信息学预测冠心病心肌梗死的诊断性生物标志物及靶向铜死亡相关基因的中药

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中药新药与临床药理 2024年第5期35卷 694-705页

作者：祁祥曹珊段凯旋张艺嘉河南中医药大学河南郑州450046

目的冠心病(coronary heart disease,CHD)是目前全球主要的致死性疾病之一,对生物标志物的检测是目前评估冠心病进展的重要无创方法,对冠心病的诊断和二级预防有着重要意义。本研究旨在筛选冠心病心肌梗死发病进程中的诊断性生物标志物... 详细信息

目的冠心病(coronary heart disease,CHD)是目前全球主要的致死性疾病之一,对生物标志物的检测是目前评估冠心病进展的重要无创方法,对冠心病的诊断和二级预防有着重要意义。本研究旨在筛选冠心病心肌梗死发病进程中的诊断性生物标志物,分析该病发展过程中的铜死亡相关基因,进一步预测能调控铜死亡相关基因的中药。方法检索GEO数据库获得冠心病心肌梗死芯片数据,分析差异表达基因(Differentially expressed genes,DEGs),对差异基因进行富集分析,基于最小绝对收缩和选择算子(least absolute shrinkage and selection operator,LASSO)与随机森林(Random Forest,RF)方法筛选关键基因,构建诊断性模型并进行验证。对差异基因进行免疫细胞浸润分析,结果进一步结合加权基因共表达网络分析获得差异表达的免疫相关基因,与铜死亡基因取交集获得铜死亡免疫相关的核心(Hub)基因,分析铜死亡相关基因与诊断性基因的相关性。对铜死亡相关基因进行基因集富集分析(Gene Set Enrichment Analysis,GSEA),进一步预测调控铜死亡相关基因的中药。结果差异分析获得115个DEGs,DEGs主要富集于淋巴细胞介导的免疫,线粒体呼吸链复合体Ⅳ等生物学过程和C型凝集素受体信号通路,趋化因子信号通路。机器学习方法筛选出SNORA20、SNORA19、H4C3、SNORD81、COX7B五个诊断性基因。免疫浸润分析发现树突状细胞,巨噬细胞M2,单核细胞,中性粒细胞,自然杀伤细胞,CD4+T细胞,CD8+T细胞,γδT细胞,这也表明以上8种免疫细胞对冠心病心肌梗死的发病发挥着一定作用。加权基因共表达网络分析(Weighted correlation networkanalysis,WGCNA)结合免疫浸润分析获得358个关键模块基因,与铜死亡基因取交集获得3个铜死亡与免疫特征基因。5个诊断性基因与Hub基因的相关性分析结果显示SLC31A1与SNORA20,LIAS与SNORA19、SNORD81,MTF1与H4C3、SNORA20、SNORA19、SNORD81的表达具有相关性。GSEA分析结果提示LIAS与MTF1对NF-κB信号通路、NOD样受体信号通路、Toll样受体信号通路有显著的影响,潜在调控中药以活血化瘀、行气止痛药为主。结论SNORA20、SNORA19、H4C3、SNORD81、COX7B对冠心病心肌梗死具有一定的诊断价值。冠心病心肌梗死发病过程中铜死亡与免疫浸润相关基因的预测对中医药干预此类疾病的机制研究提供了一定的参考。

关键词：冠心病心肌梗死机器学习生物信息学铜死亡生物标志物活血化瘀药行气止痛药