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97篇 您的检索式:作者名="Shibo Wang"
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1Inhibition of SARS-CoV-2 (previously 2019-nCoV) infection by a highly potent pan-coronavirus fusion inhibitor targeting its spike protein that harbors a high capacity to mediate membrane fusion显示文摘The recent outbreak of coronavirus disease(COVID-19)caused by SARS-CoV-2 infection in Wuhan,China has posed a serious threat to global public health.To develop specific anti-coronavirus therapeutics and prophylactics,the molecular mechanism that underlies viral infection must first be defined.Therefore,we herein established a SARS-CoV-2 spike(S)protein-mediated cell-cell fusion assay and found that SARS-CoV-2 showed a superior plasma membrane fusion capacity compared to that of SARS-CoV.We solved the X-ray crystal structure of six-helical bundle(6-HB)core of the HR1 and HR2 domains in the SARS-CoV-2 S protein S2 subunit revealing that several mutated amino acid residues in the HR1 domain may be associated with enhanced interactions with the HR2 domain.We previously developed a pan-coronavirus fusion inhibitor,EK1,which targeted the HR!domain and could inhibit infection by divergent human coronaviruses tested,including SARS-CoV and MERS-CoV.Here we generated a series of lipopeptides derived from EK1 and found that EK1C4 was the most potent fusion inhibitor against SARS-CoV-2 S protein-mediated membrane fusion and pseudovirus infection with IC50s of 1.3 and 15.8 nM,about 241-and 149-fold more potent than the original EK1 peptide,respectively.EK1C4 was also highly effective against membrane fusion and infection of other human coronavirus pseudoviruses tested,including SARS-CoV and MERS-CoV,as well as SARSr-CoVs,and potently inhibited the replication of 5 live human coronaviruses examined,including SARS-CoV-2.Intranasal application of EK1C4 before or after challenge with HCoV-OC43 protected mice from infection,suggesting that EK1C4 could be used for prevention and treatment of infection by the currently circulating SARS-CoV-2 and other emerging SARSr-CoVs.Shuai Xia Meiqin Liu Chao Wang Wei Xu Qiaoshuai Lan Siliang Feng Feifei Qi Linlin Bao Lanying Du Shuwen Liu Chuan Qin Fei Sun Zhengli Shi Yun Zhu Shibo Jiang Lu Lu 2020Cell Research2020,30,4:81
2AXL is a candidate receptor for SARS-CoV-2 that promotes infection of pulmonary and bronchial epithelial cells显示文摘The current coronavirus disease 2019(COVID-19)pandemic presents a global public health challenge.The viral pathogen responsible,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),binds to the host receptor ACE2 through its spike(S)glycoprotein,which mediates membrane fusion and viral entry.Although the role of ACE2 as a receptor for SARS-CoV-2 is clear,studies have shown that ACE2 expression is extremely low in various human tissues,especially in the respiratory tract.Thus,other host receptors and/or co-receptors that promote the entry of SARS-CoV-2 into cells of the respiratory system may exist.In this study,we found that the tyrosine-protein kinase receptor UFO(AXL)specifically interacts with the N-terminal domain of SARS-CoV-2 S.Using both a SARS-CoV-2 virus pseudotype and authentic SARS-CoV-2,we found that overexpression of AXL in HEK293T cells promotes SARS-CoV-2 entry as efficiently as overexpression of ACE2,while knocking out AXL significantly reduces SARS-CoV-2 infection in HI 299 pulmonary cells and in human primary lung epithelial cells.Soluble human recombinant AXL blocks SARS-CoV-2 infection in cells expressing high levels of AXL.The AXL expression level is well correlated with SARS-CoV-2 S level in bronchoalveolar lavage fluid cells from COVID-19 patients.Taken together,our findings suggest that AXL is a novel candidate receptor for SARS-CoV-2 which may play an important role in promoting viral infection of the human respiratory system and indicate that it is a potential target for future clinical intervention strategies.Shuai Wang Zongyang Qiu Yingnan Hou Xiya Deng Wei Xu Tingting Zheng Peihan Wu Shaofang Xie Weixiang Bian Chong Zhang Zewei Sun Kunpeng Liu Chao Shan Aifu Lin Shibo Jiang Youhua Xie Qiang Zhou Lu Lu Jing Huang Xu Li 2021Cell Research2021,31,2:39
3Identification of an ideal adjuvant for receptor-binding domain-based subunit vaccines against Middle East respiratory syndrome coronavirus显示文摘Naru Zhang Rudragouda Channappanavar Cuiqing Ma Lili Wang Jian Tang Tania Garron Xinrong Tao Sumaiya Tasneem Lu Lu Chien-Te K Tseng Yusen Zhou Stanley Perlman Shibo Jiang Lanying Du 2016Cellular & Molecular Immunology2016,13,2:12
4Integrated removal of NO and mercury from coal combustion flue gas using manganese oxides supported on TiO_2显示文摘A catalyst composed of manganese oxides supported on titania(MnO_x/TiO_2) synthesized by a sol–gel method was selected to remove nitric oxide and mercury jointly at a relatively low temperature in simulated flue gas from coal-fired power plants. The physico-chemical characteristics of catalysts were investigated by X-ray fluorescence(XRF), X-ray diffraction(XRD), and X-ray photoelectron spectroscopy(XPS) analyses, etc. The effects of Mn loading,reaction temperature and individual flue gas components on denitration and Hg^0 removal were examined. The results indicated that the optimal Mn/Ti molar ratio was 0.8 and the best working temperature was 240°C for NO conversion. O_2 and a proper ratio of [NH_3]/[NO]are essential for the denitration reaction. Both NO conversion and Hg^0 removal efficiency could reach more than 80% when NO and Hg^0 were removed simultaneously using Mn0.8 Tiat 240°C.Hg^0 removal efficiency slightly declined as the Mn content increased in the catalysts. The reaction temperature had no significant effect on Hg^0 removal efficiency. O_2 and HCl had a promotional effect on Hg^0 removal. SO2 and NH_3were observed to weaken Hg^0 removal because of competitive adsorption. NO first facilitated Hg^0 removal and then had an inhibiting effect as NO concentration increased without O_2, and it exhibited weak inhibition of Hg^0 removal efficiency in the presence of O_2. The oxidation of Hg^0 on Mn O x/TiO_2 follows the Mars–Maessen and Langmuir–Hinshelwood mechanisms.Shibo Zhang Yongchun Zhao Zonghua Wang Junying Zhang Lulu Wang Chuguang Zheng 2017Journal of Environmental Sciences2017,29,3:11
5The role of furin cleavage site in SARS-CoV-2 spike protein-mediated membrane fusion in the presence or absence of trypsin显示文摘Dear Editor,The rapid spread of SARS-CoV-2(also known as 2019-nCoV and HCoV-191),a novel lineage B betacoronavirus(βCoV),has caused a global pandemic of coronavirus disease(COVID-19).It has been speculated that RRAR,a unique furin-like cleavage site(FCS)in the spike protein(S),which is absent in other lineage BβCoVs,such as SARS-CoV,is responsible for its high infectivity and transmissibility.Shuai Xia Qiaoshuai Lan Shan Su Xinling Wang Wei Xu Zezhong Liu Yun Zhu Qian Wang Lu Lu Shibo Jiang 2020Signal Transduction and Targeted Therapy2020,5,1:8
6Abnormal expression of bHLH3 disrupts a flavonoid homeostasis network,causing differences in pigment composition among mulberry fruits显示文摘Mulberry fruits with high concentrations of anthocyanins are favored by consumers because of their good taste,bright color,and high nutritional value.However,neither the regulatory mechanism controlling flavonoid biosynthesis in mulberry nor the molecular basis of different mulberry fruit colors is fully understood.Here,we report that a flavonoid homeostasis network comprising activation and feedback regulation mechanisms determines mulberry fruit color.In vitro and in vivo assays showed that MYBA-bHLH3-TTG1 regulates the biosynthesis of anthocyanins,while TT2L1 and TT2L2 work with bHLH3 or GL3 and form a MYB-bHLH-WD40(MBW)complex with TTG1 to regulate proanthocyanidin(PA)synthesis.Functional and expression analyses showed that bHLH3 is a key regulator of the regulatory network controlling mulberry fruit coloration and that MYB4 is activated by MBW complexes and participates in negative feedback control of the regulatory network to balance the accumulation of anthocyanins and proanthocyanidins.Our research demonstrates that the interaction between bHLH3 and MYB4 in the homeostasis regulatory network ensures that the fruits accumulate desirable flavonoids and that this network is stable in pigmentrich mulberry fruits.However,the abnormal expression of bHLH3 disrupts the balance of the network and redirects flavonoid metabolic flux in pale-colored fruits,resulting in differences in the levels and proportions of anthocyanins,flavones,and flavonols among differently colored mulberry fruits(red,yellow,and white).The results of our study reveal the molecular basis of the diversity of mulberry fruit colors.Han Li Zhen Yang Qiwei Zeng Shibo Wang Yiwei Luo Yan Huang Youchao Xin Ningjia He 2020Horticulture Research2020,7,1:8
7RBD-Fc-based COVID-19 vaccine candidate induces highly potent SARS-CoV-2 neutralizing antibody response显示文摘The pandemic of coronavirus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has posed serious threats to global health and economy,thus calling for the development of safe and effective vaccines.The receptorbinding domain(RBD)in the spike protein of SARS-CoV-2 is responsible for its binding to angiotensin-converting enzyme 2(ACE2)receptor.It contains multiple dominant neutralizing epitopes and serves as an important antigen for the development of COVID-19 vaccines.Here,we showed that immunization of mice with a candidate subunit vaccine consisting of SARS-CoV-2 RBD and Fc fragment of human IgG,as an immunopotentiator,elicited high titer of RBD-specific antibodies with robust neutralizing activity against both pseudotyped and live SARS-CoV-2 infections.The mouse antisera could also effectively neutralize infection by pseudotyped SARS-CoV-2 with several natural mutations in RBD and the IgG extracted from the mouse antisera could also show neutralization against pseudotyped SARS-CoV and SARS-related coronavirus(SARSr-CoV).Vaccination of human ACE2 transgenic mice with RBD-Fc could effectively protect mice from the SARS-CoV-2 challenge.These results suggest that SARS-CoV-2 RBD-Fc has good potential to be further developed as an effective and broad-spectrum vaccine to prevent infection of the current SARS-CoV-2 and its mutants,as well as future emerging SARSr-CoVs and re-emerging SARS-CoV.Zezhong Liu Wei Xu Shuai Xia Chenjian Gu Xinling Wang Qian Wang Jie Zhou Yanling Wu Xia Cai Di Qu Tianlei Ying Youhua Xie Lu Lu Zhenghong Yuan Shibo Jiang 2020Signal Transduction and Targeted Therapy2020,5,1:7
8Mg-Zn-Y-Nd coated with citric acid and dopamine by layer-by-layer self-assembly to improve surface biocompatibility显示文摘Magnesium alloy has been generally accepted as an important biodegradable material on cardiovascular stent development for a long time. However, its limited biocompatibility, especially delayed endothelialization process restricts its further application. In this contribution, we modified the Mg-Zn-Y-Nd alloy surface with citric acid and dopamine via a layer-by-layer self-assembly assay, aiming at improving the biocompatibility of the magnesium alloy. The citric acid/dopamine(CA/PDA) layer exhibited a remarkable suppression of platelet activation/aggregation and thrombosis under 15 dyn/cm2 blood flowing. Inhibition on vascular smooth muscle cells growth and macrophages attachment/activation were also observed on this layer. In particular, the CA/PDA layer presented a promoted property for the vascular endothelial cells growth and spreading compared with the bare magnesium alloy, suggesting the pro-endotelialized function. In conclusion, this research may support potential application on surface modification of magnesium alloy based cardiovascular stents for better biocompatibility.CHEN Li LI JingAn CHANG JiaWei JIN ShiBo WU Di YAN HaoHao WANG XiaoFeng GUAN ShaoKang 2018Science China(Technological Sciences)2018,61,8:7
9A novel STING agonist-adjuvanted pan-sarbecovirus vaccine elicits potent and durable neutralizing antibody and T cell responses in mice,rabbits and NHPs显示文摘The emergence of SARS-CoV-2 variants and potentially other highly pathogenic sarbecoviruses in the future highlights the need for pan-sarbecovirus vaccines.Here,we discovered a new STING agonist,CF501,and found that CF501-adjuvanted RBD-FC vaccine(CF501/RBD-FC)elicited significantly stronger neutralizing antibody(nAb)and T cell responses than Alum-and cGAMP-adjuvanted RBD-FC in mice.Vaccination of rabbits and rhesus macaques(nonhuman primates,NHPs)with CF501/RBD-FC elicited exceptionally potent nAb responses against SARS-CoV-2 and its nine variants and 41 S-mutants,SARS-CoV and bat SARSr-CoVs.CF501/RBD-FC-immunized hACE2-transgenic mice were almost completely protected against SARS-CoV-2 challenge,even 6 months after the initial immunization.NHPs immunized with a single dose of CF501/RBD-FC produced high titers of nAbs.The immunized macaques also exhibited durable humoral and cellular immune responses and showed remarkably reduced viral load in the upper and lower airways upon SARS-CoV-2 challenge even at 108 days post the final immunization.Thus,CF501/RBD-Fc can be further developed as a novel pan-sarbecovirus vaccine to combat current and future outbreaks of sarbecovirus diseases.Zezhong Liu Jie Zhou Wei Xu Wei Deng Yanqun Wang Meiyu Wang Qian Wang Ming Hsieh Jingming Dong Xinling Wang Weijin Huang Lixiao Xing Miaoling He Chunlin Tao Youhua Xie Yilong Zhang Youchun Wang Jincun Zhao Zhenghong Yuan Chuan Qin Shibo Jiang Lu Lu 2022Cell Research2022,32,3:5
10A highly potent and stable pan-coronavirus fusion inhibitor as a candidate prophylactic and therapeutic for COVID-19 and other coronavirus diseases显示文摘The development of broad-spectrum antivirals against human coronaviruses(HCoVs)is critical to combat the current coronavirus disease 2019(COVID-19)pandemic caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)and its variants,as well as future outbreaks of emerging CoVs.We have previously identified a polyethylene glycol-conjugated(PEGylated)lipopeptide,EK1C4,with potent pan-CoV fusion inhibitory activity.However,PEG linkers in peptide or protein drugs may reduce stability or induce anti-PEG antibodies in vivo.Therefore,we herein report the design and synthesis of a series of dePEGylated lipopeptide-based pan-CoV fusion inhibitors featuring the replacement of the PEG linker with amino acids in the heptad repeat 2 C-terminal fragment(HR2-CF)of HCoV-OC43.Among these lipopeptides,EKL1C showed the most potent inhibitory activity against infection by SARS-CoV-2 and its spike(S)mutants,as well as other HCoVs and some bat SARS-related coronaviruses(SARSr-CoVs)tested.The dePEGylated lipopeptide EKL1C exhibited significantly stronger resistance to proteolytic enzymes,better metabolic stability in mouse serum,higher thermostability than the PEGylated lipopeptide EK1C4,suggesting that EKL1C could be further developed as a candidate prophylactic and therapeutic for COVID-19 and other coronavirus diseases.Jie Zhou Wei Xu Zezhong Liu Chao Wang Shuai Xia Qiaoshuai Lan Yanxing Cai Shan Su Jing Pu Lixiao Xing Youhua Xie Lu Lu Shibo Jiang Qian Wang 2022Acta Pharmaceutica Sinica B2022,12,4:5
11Engineered trimeric ACE2 binds viral spike protein and locks it in'Thfee-up'conformation to potently inhibit SARS-CoV-2 infection显示文摘Dear Editor,Coronavirus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has resulted in a severe global pandemic Following SARS-CoV,SARS-CoV-2 is yet another emerge nt beta-coronavirus threate ning human health.1 However,seventeen years after the SARS pandemic,no targeted vaccines or therapeutics have been approved for SARS,while some of them might have held promise for treating COVID-19.Many neutralizing antibodies against SARS-CoV-2 are currently being developed.However,RNA viruses are known to have high mutation rates.Liang Guo Wenwen Bi Xinling Wang Wei Xu Renhong Yan Yuanyuan Zhang Kai Zhao Yaning Li Mingfeng Zhang Xia Cai Shibo Jiang Youhua Xie Qiang Zhou Lu Lu Bobo Dang 2021Cell Research2021,31,1:5
12Retraction Note to:SARS-CoV-2 infects T lymphocytes through its spike protein-mediated membrane fusion显示文摘The authors have retracted this article1.After the publication of this article,it came to the authors attention that in order to support the conclusions of the study,the authors should have used primary T cells instead of T-cell lines.In addition,there are concerns that the flow cytometry methodology applied here was flawed.These points resulted in the conclusions being considered invalid.Xinling Wang Wei Xu Gaowei Hu Shuai Xia Zhiping Sun Zezhong Liu Youhua Xie Rong Zhang Shibo Jiang Lu Lu 2020Cellular & Molecular Immunology2020,17,8:5
13A pan-sarbecovirus vaccine induces highly potent and durable neutralizing antibody responses in non-human primates against SARS-CoV-2 Omicron variant显示文摘Dear Editor,Since the outbreak of Coronavirus Disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection,numerous SARS-CoV-2 variants of concern(VOCs),such as Alpha(B.1.1.7),Beta(B.1.351),Gamma(P.1),and Delta(B.1.617.2),have emerged.Recently,the newly identified SARS-CoV-2 VOC,Omicron(B.1.1.529),has rapidly spread in many countries1 and is expected to replace Delta as the dominant variant circulating in the world.Compared to other VOCs,Omicron contains at least 32 mutations in spike(S)protein,including 15 mutations in the receptor-binding domain(RBD),and these mutations are known to confer resistance to neutralizing antibodies(nAbs)and sera of convalescent patients and people who have received COVID-19 vaccines.2–5 Therefore,vaccines able to induce potent and durable neutralizing antibodies against Omicron and other VOCs are urgently needed.Zezhong Liu Jasper Fuk-Woo Chan Jie Zhou Meiyu Wang Qian Wang Guangxu Zhang Wei Xu Kenn Ka-Heng Chik Yilong Zhang Youchun Wang Kwok-Yung Yuen Lu Lu Shibo Jiang 2022Cell Research2022,32,5:4
14Sin1/mTORC2 regulate B cell growth and metabolism by activating mTORC1 and Myc显示文摘Proper control of B cell growth and metabolism is crucial for B-cell-mediated immunity,but the underlying molecular mechanisms remain incompletely understood.In this study,Sin1,a key component of mTOR complex 2(mTORC2),specifically regulates B cell growth and metabolism.Genetic ablation of Sin1 in B cells reduces the cell size at either the transitional stage or upon antigen stimulation and severely impairs metabolism.Sin1 deficiency also severely impairs B-cell proliferation,antibody responses,and anti-viral immunity.At the molecular level,Sin1 controls the expression and stability of the c-Myc protein and maintains the activity of mTORC1 through the Akt-dependent inactivation of GSK3 and TSC1/2,respectively.Therefore,our study reveals a novel and specific role for Sin1 in coordinating the activation of mTORC2 and mTORC1 to control B cell growth and metabolism.Man Li Adam S.Lazorchak Xinxing Ouyang Huihui Zhang Hongzhi Liu Omotooke A.Arojo Lichong Yan Jingsi Jin Yuheng Han Guojun Qu Yuhong Fu Xiaocao Xu Xiaobo Liu Wenqian Zhang Zhengfeng Yang Chuan Ruan Qijun Wang Dou Liu Chuanxin Huang Lu Lu Shibo Jiang Fubin Li Bing Su 2019Cellular & Molecular Immunology2019,16,9:4
15From structural ceramics to 2D materials with multi-applications:A review on the development from MAX phases to MXenes显示文摘MAX phases(Ti_(3)SiC_(2),Ti_(3)AIC_(2),V_(2)AlC,TiqAlN_(3),etc.)are layered ternary carbides/nitrides,which are generally processed and researched as structure ceramics.Selectively removing A layer from MAX phases,MXenes(Ti_(3)C_(2),V_(2)C,Mo_(2)C,etc.)with two-dimensional(2D)structure can be prepared.The MXenes are electrically conductive and hydrophilic,which are promising as functional materials in many areas.This article reviews the milestones and the latest progress in the research of MAX phases and MXenes,from the perspective of ceramic science.Especially,this article focuses on the conversion from MAX phases to MXenes.First,we summarize the microstructure,preparation,properties,and applications of MAX phases.Among the various properties,the crack healing properties of MAX phase are highlighted.Thereafter,the critical issues on MXene research,including the preparation process,microstructure,MXene composites,and application of MXenes,are reviewed.Among the various applications,this review focuses on two selected applications:energy storage and electromagnetic interference shielding.Moreover,new research directions and future trends on MAX phases and MXenes are also discussed.Aiguo ZHOU Yi LIU Shibo LI Xiaohui WANG Guobing YING Qixun XIA Peigen ZHANG 2021Journal of Advanced Ceramics2021,10,6:4
16Development of oncolytic virotherapy:from genetic modification to combination therapy显示文摘Oncolytic virotherapy(OVT)is a novel form of immunotherapy using natural or genetically modified viruses to selectively replicate in and kill malignant cells.Many genetically modified oncolytic viruses(OVs)with enhanced tumor targeting,antitumor efficacy,and safety have been generated,and some of which have been assessed in clinical trials.Combining OVT with other immunotherapies can remarkably enhance the antitumor efficacy.In this work,we review the use of wild-type viruses in OVT and the strategies for OV genetic modification.We also review and discuss the combinations of OVT with other immunotherapies.Qiaoshuai Lan Shuai Xia Qian Wang Wei Xu Haiyan Huang Shibo Jiang Lu Lu 2020Frontiers of Medicine2020,14,2:4
17Bifunctional Oxygen Electrocatalyst of Mesoporous Ni/NiO Nanosheets for Flexible Rechargeable Zn–Air Batteries显示文摘One approach to accelerate the stagnant kinetics of both the oxygen reduction and evolution reactions(ORR/OER)is to develop a rationally designed multiphase nanocomposite,where the functions arising from each of the constituent phases,their interfaces,and the overall structure are properly controlled.Herein,we successfully synthesized an oxygen electrocatalyst consisting of Ni nanoparticles purposely interpenetrated into mesoporous NiO nanosheets(porous Ni/NiO).Benefiting from the contributions of the Ni and NiO phases,the well-established pore channels for charge transport at the interface between the phases,and the enhanced conductivity due to oxygen-deficiency at the pore edges,the porous Ni/NiO nanosheets show a potential of 1.49 V(10 mA cm^-2)for the OER and a half-wave potential of 0.76 V for the ORR,outperforming their noble metal counterparts.More significantly,a Zn-air battery employing the porous Ni/NiO nanosheets exhibits an initial charging-discharging voltage gap of 0.83 V(2 mA cm^-2),specific capacity of 853 mAh gZn^-1 at 20 mA cm^-2,and long-time cycling stability(120 h).In addition,the porous Ni/NiO-based solid-like Zn-air battery shows excellent electrochemical performance and flexibility,illustrating its great potential as a next-generation rechargeable power source for flexible electronics.Peitao Liu Jiaqi Ran Baorui Xia Shibo Xi Daqiang Gao John Wang 2020Nano-Micro Letters2020,12,5:4
18Inefficiency of Sera from Mice Treated with Pseudotyped SARS-CoV to Neutralize 2019-nCoV Infection显示文摘Dear Editor,An outbreak of unusual pneumonia in Wuhan, China recently was caused by infection of a novel type of coronavirus. The virus and disease were denoted as 2019-nCoV and COVID-19, respectively, by the World Health Organization(WHO). Most recently, 2019-nCoV was renamed SARS-CoV-2 by Coronaviridae Study Group(CSG) of the International Committee on Taxonomy of Viruses(ICTV)(Gorbalenya et al. 2020)。Zezhong Liu Shuai Xia Xinling Wang Qiaoshuai Lan Wei Xu Qian Wang Shibo Jiang Lu Lu 2020Virologica Sinica2020,35,3:3
19Engineering self-healing adhesive hydrogels with antioxidant properties for intrauterine adhesion prevention显示文摘Intrauterine adhesion (IUA) is the fibrosis within the uterine cavity. It is the second most common cause of female infertility, significantly affecting women’s physical and mental health. Current treatment strategies fail to provide a satisfactory therapeutic outcome for IUA patients, leaving an enormous challenge for reproductive science. A self-healing adhesive hydrogel with antioxidant properties will be highly helpful in IUA prevention. In this work, we prepare a series of self-healing hydrogels (P10G15, P10G20, and P10G25) with antioxidant and adhesive properties. Those hydrogels exhibit good self-healing properties and can adapt themselves to different structures. They possess good injectability and fit the shape of the human uterus. Moreover, the hydrogels exhibit good tissue adhesiveness, which is desirable for stable retention and therapeutic efficacy. The in vitro experiments using P10G20 show that the adhesive effectively scavenges ABTS+, DPPH, and hydroxyl radicals, rescuing cells from oxidative stress. In addition, P10G20 offers good hemocompatibility and in vitro and in vivo biocompatibility. Furthermore, P10G20 lowers down the in vivo oxidative stress and prevents IUA with less fibrotic tissue and better endometrial regeneration in the animal model. It can effectively downregulate fibrosis-related transforming growth factor beta 1 (TGF-β1) and vascular endothelial growth factor (VEGF). Altogether, these adhesives may be a good alternative for the clinical treatment of intrauterine adhesion.Luyao Feng Liqun Wang Yao Ma Wanglin Duan Sergio Martin-Saldana Ye Zhu Xianpeng Zhang Bin Zhu Chaowei Li Shibo Hu Mingjie Bao Ting Wang Yuan Zhu Fei Yang Yazhong Bu 2023Bioactive Materials2023,,9:3
20Origin,virological features,immune evasion and intervention of SARS-CoV-2 Omicron sublineages显示文摘Recently,a large number of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)variants continuously emerged and posed a major threat to global public health.Among them,particularly,Omicron variant(B.1.1.529),first identified in November 2021,carried numerous mutations in its spike protein(S),and then quickly spread around the world.Currently,Omicron variant has expanded into more than one hundred sublineages,such as BA.1,BA.2,BA.2.12.1,BA.4 and BA.5,which have already become the globally dominant variants.Different from other variants of concern(VOCs)of SARS-CoV-2,the Omicron variant and its sublineages exhibit increased transmissibility and immune escape from neutralizing antibodies generated through previous infection or vaccination,and have caused numerous re-infections and breakthrough infections.In this prospective,we have focused on the origin,virological features,immune evasion and intervention of Omicron sublineages,which will benefit the development of nextgeneration vaccines and therapeutics,including pan-sarbecovirus and universal anti-CoV therapeutics,to combat currently circulating and future emerging Omicron sublineages as well as other SARS-CoV-2 variants.Shuai Xia Lijue Wang Yun Zhu Lu Lu Shibo Jiang 2022Signal Transduction and Targeted Therapy2022,7,8:3
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