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Extinction of influenza B Yamagata:Its impact on public health and vaccine implications
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作者 Muhammad Awais Ashraf Muhammad Asif Raza Muhammad Nabeel Amjad 《Journal of Biomedical Research》 2025年第2期209-212,共4页
Dear Editor,The circulation of respiratory viruses,primarily the influenza virus,has been disrupted by the emergence of the COVID-19 pandemic and SARS-CoV-2.Epidemiological surveillance data during the COVID-19 pandem... Dear Editor,The circulation of respiratory viruses,primarily the influenza virus,has been disrupted by the emergence of the COVID-19 pandemic and SARS-CoV-2.Epidemiological surveillance data during the COVID-19 pandemic indicate a decline in the circulation of the influenza B Yamagata lineage in recent periods,suggesting a dynamic shift in the epidemiology of influenza B viruses(IBVs). 展开更多
关键词 influenza epidemiology respiratory
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Caspase-1 Cleavage of Aldolase B Impairs Hepatic Fructose Metabolism and Aggravates Chronic Viral Hepatitis
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作者 Hong Tang Haiming Hu +9 位作者 Yanhang Gao Zhilong Wang Feng Yuan Chao Zhang Sisi Deng Pingyun Lyu Jingying Zhan Chengkai Li Hairong Chen Junqi Niu 《Infectious Microbes & Diseases》 CSCD 2024年第2期74-84,共11页
Of dietary monosaccharides,fructose is primarily metabolized by aldolase B(ALDOB)in the liver,whereas glucose is metabolized elsewhere in the body.It has been documented that overconsumption of dietary fructose,especi... Of dietary monosaccharides,fructose is primarily metabolized by aldolase B(ALDOB)in the liver,whereas glucose is metabolized elsewhere in the body.It has been documented that overconsumption of dietary fructose,especially industrial fructose,associates significantly with advanced inflammation in chronic hepatitis C(CHC)patients.However,little is known about whether impaired fructolysis might attribute to CHC hepatopathogenesis.Herein we found that the level of ALDOB protein was significantly reduced in CHC patients and mice that were persistently infected by hepatitis C virus(HCV).In vitro,HCV infection activated caspase-1,and caspase-3 to a lesser extent,which proteolyzed ALDOB and blocked fructose metabolism in hepatocytes.Downregulation of ALDOB attenuated HCV replication,indicating an intrinsic anti-HCV role for homeostatic fructolysis.On the other hand,reduced ALDOB caused intracellular fructose 1-phosphate accumulation that provoked severe cellular toxicity through intracellular ATP depletion and heightened glycation,which was aggravated by HCV infection.Taken together,these results have unveiled that inflammatory activation of caspase-1 impairs homeostatic fructolysis and exacerbates liver damage. 展开更多
关键词 ALDOB fructose metabolism CASPASE-1 HCV
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Pan-omics-based characterization and prediction of highly multidrugadapted strains from an outbreak fungal species complex
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作者 Xin Fan Lei Chen +21 位作者 Min Chen Na Zhang Hong Chang Mingjie He Zhenghao Shen Lanyue Zhang Hao Ding Yuyan Xie Yemei Huang Weixin Ke Meng Xiao Xuelei Zang Heping Xu Wenxia Fang Shaojie Li Cunwei Cao Yingchun Xu Shiguang Shan Wenjuan Wu Changbin Chen Xinying Xue Linqi Wang 《The Innovation》 EI 2024年第5期101-109,100,共10页
Strains from the Cryptococcus gattii species complex(CGSC)have caused the Pacific Northwest cryptococcosis outbreak,the largest cluster of lifethreatening fungal infections in otherwise healthy human hosts known to da... Strains from the Cryptococcus gattii species complex(CGSC)have caused the Pacific Northwest cryptococcosis outbreak,the largest cluster of lifethreatening fungal infections in otherwise healthy human hosts known to date.In this study,we utilized a pan-phenome-based method to assess the fitness outcomes of CGSC strains under 31 stress conditions,providing a comprehensive overview of 2,821 phenotype-strain associations within this pathogenic clade.Phenotypic clustering analysis revealed a strong correlation between distinct types of stress phenotypes in a subset of CGSC strains,suggesting that shared determinants coordinate their adaptations to various stresses.Notably,a specific group of strains,including the outbreak isolates,exhibited a remarkable ability to adapt to all three of the most commonly used antifungal drugs for treating cryptococcosis(amphotericin B,5-fluorocytosine,and fluconazole).By integrating pan-genomic and pan-transcriptomic analyses,we identified previously unrecognized genes that play crucial roles in conferring multidrug resistance in an outbreak strain with high multidrug adaptation.From these genes,we identified biomarkers that enable the accurate prediction of highly multidrug-adapted CGSC strains,achieving maximum accuracy and area under the curve(AUC)of 0.79 and 0.86,respectively,using machine learning algorithms.Overall,we developed a pan-omic approach to identify cryptococcal multidrug resistance determinants and predict highly multidrug-adapted CGSC strains that may pose significant clinical concern. 展开更多
关键词 MULTIDRUG adapted PREDICTION
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Optimized pretreatment increases the susceptibility of hepatitis B virus infection by enhancing actomyosin-driven cell spreading
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作者 Shuzhi Cui Wei Gao +2 位作者 Zonghong Li Yi Xu Yaming Jiu 《hLife》 2024年第4期201-205,共5页
Hepatitis B virus(HBV),an enveloped DNA virus with a partially double-stranded DNA genome,causes transient and chronic hepatitis B in humans.A certain amount of chronic HBV infections eventually leads to liver cirrhos... Hepatitis B virus(HBV),an enveloped DNA virus with a partially double-stranded DNA genome,causes transient and chronic hepatitis B in humans.A certain amount of chronic HBV infections eventually leads to liver cirrhosis or hepatocellular carcinoma which is a major health problem worldwide[1,2].With tissue tropism and species-specific infection,the establishment of in vitro models permissive to HBV is critical in understanding the viral life cycle and designing curative therapies.The ideal cell model for in vitro infection studies is primary human hepatocytes(PHHs)[3].However,PHHis difficult to obtain andwith high cost.The donor diversity and high batch-to-batch variability of infection efficiency also limit its applicability.In 2012,sodium taurocholate co-transporting polypeptide(NTCP)was identified as a functional receptor for HBV entry[4].Thus,a new infection model based on NTCP-reconstituted HepG2 hepatocytes(HepG2-NTCP)was successfully established,which greatly promoted the understanding of HBV infection and replication[4].However,in this infection system,successful HBV infection stringently requires a high concentration of HBV viral particles,but still in most cases supports a low level of HBV replication[5].Thus,further optimization of infection cell models is an important demand in HBV research. 展开更多
关键词 INFECTION BATCH eventually
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RIPK1 plays a crucial role in maintaining regulatory T-Cell homeostasis by inhibiting both RIPK3-and FADD-mediated cell death 被引量:1
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作者 Xiaoxue Deng Lingxia Wang +15 位作者 Yunze Zhai Qiuyue Liu Fengxue Du Yu Zhang Wenxing Zhao Tingtao Wu Yiwen Tao Jie Deng Yongbing Cao Pei Hao Jiazi Ren Yunli Shen Zuoren Yu Yuejuan Zheng Haibing Zhang Haikun Wang 《Cellular & Molecular Immunology》 SCIE CAS CSCD 2024年第1期80-90,共11页
Regulatory T(T_(reg))cells play an essential role in maintaining immune balance across various physiological and pathological conditions.However,the mechanisms underlying T_(reg)homeostasis remain incompletely underst... Regulatory T(T_(reg))cells play an essential role in maintaining immune balance across various physiological and pathological conditions.However,the mechanisms underlying T_(reg)homeostasis remain incompletely understood.Here,we report that RIPK1 is crucial for T_(reg) cell survival and homeostasis.We generated mice with T_(reg) cell-specific ablation of Ripk1 and found that these mice developed fatal systemic autoimmunity due to a dramatic reduction in the Treg cell compartment caused by excessive cell death.Unlike conventional T cells,Treg cells with Ripk1 deficiency were only partially rescued from cell death by blocking FADD-dependent apoptosis.However,simultaneous removal of both Fadd and Ripk3 completely restored the homeostasis of Ripk1-deficient Treg cells by blocking two cell death pathways.Thus,our study highlights the critical role of RIPK1 in regulating Treg cell homeostasis by controlling both apoptosis and necroptosis,thereby providing novel insights into the mechanisms of Treg cell homeostasis. 展开更多
关键词 Treg cell HOMEOSTASIS Apoptosis NECROPTOSIS
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Discovery of Trametinib as an orchestrator for cytoskeletal vimentin remodeling
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作者 Shuangshuang Zhao Zhifang Li +5 位作者 Qian Zhang Yue Zhang Jiali Zhang Gaofeng Fan Xiaobao Cao Yaming Jiu 《Journal of Molecular Cell Biology》 SCIE CAS CSCD 2024年第3期24-34,共11页
The dynamic remodeling of the cytoskeletal network of vimentin intermediate filaments supports various cellular functions,including cell morphology,elasticity,migration,organelle localization,and resistance against me... The dynamic remodeling of the cytoskeletal network of vimentin intermediate filaments supports various cellular functions,including cell morphology,elasticity,migration,organelle localization,and resistance against mechanical or pathological stress.Currently available chemicals targeting vimentin predominantly induce network reorganization and shrinkage around the nucleus.Effective tools for long-term manipulation of vimentin network dispersion in living cells are still lacking,limiting in-depth studies on vimentin function and potential therapeutic applications.Here,we verified that a commercially available small molecule,trametinib,is capable of inducing spatial spreading of the cellular vimentin network without affecting its transcriptional or Translational regulation.Further evidence confirmed its low cytotoxicity and similar effects on different cell types.Importantly,Trametinib has no impact on the other two cytoskeletal systems,actin filaments and the microtubule network.Moreover,Trametinib regulates vimentin network dispersion rapidly and efficiently,with effects persisting for up to 48 h after drug withdrawal.We also ruled out the possibility that Trametinib directly affects the phosphorylation level of vimentin.In summary,we identified an unprecedented regulator Trametinib,which is capable of spreading the vimentin network toward the cell periphery,and thus complemented the existing repertoire of vimentin remodeling drugs in the field of cytoskeletal research. 展开更多
关键词 VIMENTIN intermediate filaments CYTOSKELETON small molecule network reorganization
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mRNA vaccine technology for infectious diseases and beyond
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作者 Pei Hao Xiao Li +1 位作者 Xuan Li Wu Zhong 《Science China(Life Sciences)》 SCIE CAS CSCD 2024年第10期2267-2270,共4页
The rise of mRNA vaccine technology Vaccines stand as one of the most significant medical advancements,playing a crucial role in the prevention of infectious diseases and the improvement of global health.The triumph o... The rise of mRNA vaccine technology Vaccines stand as one of the most significant medical advancements,playing a crucial role in the prevention of infectious diseases and the improvement of global health.The triumph of smallpox vaccination stands as a towering achievement in the annals of healthcare,leading to the complete elimination of a oncedevastating disease and showcasing the efficacy of vaccination methods. 展开更多
关键词 methods VACCINATION PREVENTION
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Assessing risk of Bombali virus spillover to humans by mutagenesis analysis of viral glycoprotein
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作者 Lincan Li Tianyu Gan +2 位作者 Ziyue Ma Yi Huang Jin Zhong 《hLife》 2024年第1期32-42,共11页
Ebolaviruses,such as the highly pathogenic Ebola virus(EBOV),belong to the family Filoviridae and have caused out-breaks of severe and fatal hemorrhagic fever over the past years.Bombali virus(BOMV)is a newly discover... Ebolaviruses,such as the highly pathogenic Ebola virus(EBOV),belong to the family Filoviridae and have caused out-breaks of severe and fatal hemorrhagic fever over the past years.Bombali virus(BOMV)is a newly discovered ebolavirus from bats with unknown potential to infect humans.For most ebolaviruses,the interaction between viral glycoprotein(GP)and host receptor Niemann-Pick C1(NPC1)is crucial for viral entry and determines host tropism.Here,we analyzed the BOMV GP-mediated virus entry into human cells using our recently developed EBOV transcription-and replication-competent virus-like particle(trVLP)system.We demonstrated that while BOMV GP can be efficiently incorporated into trVLPs,it is inefficient in mediating trVLP entry into human cells.However,BOMV GP-mediated virus entry into human cells can be significantly enhanced by a few mutations in the NPC1-binding domain of GP.Furthermore,we showed that these mutations increase the binding of BOMV-GP to human NPC1.In summary,our results suggested that although wild-type BOMV does not efficiently infect human cells,the emergence of mutations in viral GP may boost its ability to spill over to humans,highlighting the importance of monitoring BOMV GP evolution in preventing potential BOMV spillover events. 展开更多
关键词 Bombali virus GLYCOPROTEIN ENTRY Ebola virus Niemann-Pick C1
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Quantitatively mapping local quality of super-resolution microscopy by rolling Fourier ring correlation 被引量:5
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作者 Weisong Zhao Xiaoshuai Huang +14 位作者 Jianyu Yang Liying Qu Guohua Qiu Yue Zhao Xinwei Wang Deer Su Xumin Ding Heng Mao Yaming Jiu Ying Hu Jiubin Tan Shiqun Zhao Leiting Pan Liangyi Chen Haoyu Li 《Light(Science & Applications)》 SCIE EI CSCD 2023年第12期2826-2844,共19页
In fluorescence microscopy,computational algorithms have been developed to suppress noise,enhance contrast,and even enable super-resolution(SR).However,the local quality of the images may vary on multiple scales,and t... In fluorescence microscopy,computational algorithms have been developed to suppress noise,enhance contrast,and even enable super-resolution(SR).However,the local quality of the images may vary on multiple scales,and these differences can lead to misconceptions.Current mapping methods fail to finely estimate the local quality,challenging to associate the SR scale content.Here,we develop a rolling Fourier ring correlation(rFRC)method to evaluate the reconstruction uncertainties down to SR scale.To visually pinpoint regions with low reliability,a filtered rFRC is combined with a modified resolution-scaled error map(RSM),offering a comprehensive and concise map for further examination.We demonstrate their performances on various SR imaging modalities,and the resulting quantitative maps enable better SR images integrated from different reconstructions.Overall,we expect that our framework can become a routinely used tool for biologists in assessing their image datasets in general and inspire further advances in the rapidly developing field of computational imaging. 展开更多
关键词 RESOLUTION LOCAL enable
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Aldo-keto reductase 1B:Much learned,much more to do
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作者 Yaya Zhao Miaomiao Zhang +4 位作者 Huaping Li Yiwen Yang Xiaofu Lu Junjing Yu Lei Pan 《hLife》 2024年第4期154-178,共25页
The aldo-keto reductase 1B(AKR1B)subfamily was initially known for its association with the pathogenesis of secondary diabetic complications such as retinopathy,neuropathy,nephropathy,and cataracts.Unfortunately,over ... The aldo-keto reductase 1B(AKR1B)subfamily was initially known for its association with the pathogenesis of secondary diabetic complications such as retinopathy,neuropathy,nephropathy,and cataracts.Unfortunately,over the past few decades,all drug development efforts targeting this family have failed for one reason or another.Recently,a growing body of evidence showing the deep involvement of AKR1B in metabolic reprogramming and production of signaling metabolites has led to a re-evaluation of their role in the pathogenesis of several immunometabolism-related diseases,such as gastrointestinal diseases,psoriasis,congenital disorders of glycosylation,carcinogenesis,even progression,and acquired chemoresistance.Therefore,in this review,we will summarize the current knowledge of AKR1B,highlighting their potential function in regulating immune cell function and then inflammatory complications.We will also explore how discovering this new insight into this old enzyme is essential for envisioning potential therapeutic strategies to prevent or treat inflammatory diseases. 展开更多
关键词 aldo-keto reductase 1B gastrointestinal diseases PSORIASIS congenital disorder of glycosylation CANCER aldo-keto reductase 1B inhibitor
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单分子视踪技术揭示SARS-CoV-2病毒利用动态的丝状伪足入侵细胞
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作者 张悦 张晓玮 +13 位作者 李钟艺 赵唯淞 杨慧 赵双双 汤代骄 张倩 李总红 刘会生 李浩宇 李博 Pekka Lappalainen 徐涛 崔宗强 酒亚明 《Science Bulletin》 SCIE EI CAS CSCD 2023年第19期2210-2224,M0004,共16页
SARS-CoV-2病毒侵袭细胞的分子机制已被初步探索,但关于其如何调节亚细胞结构重塑从而侵袭多种器官及细胞类型尚不清楚.本文利用活细胞实时成像技术揭示了SARS-CoV-2病毒颗粒通过宿主细胞丝状伪足进入靶细胞的动态过程.利用荧光标记的SA... SARS-CoV-2病毒侵袭细胞的分子机制已被初步探索,但关于其如何调节亚细胞结构重塑从而侵袭多种器官及细胞类型尚不清楚.本文利用活细胞实时成像技术揭示了SARS-CoV-2病毒颗粒通过宿主细胞丝状伪足进入靶细胞的动态过程.利用荧光标记的SARS-CoV-2病毒样颗粒(VLP)和稀疏去卷积算法成像技术,发现VLP利用丝状伪足以“冲浪”和“抓取”两种模式到达入侵点,以避免病毒在细胞膜上随机搜索入侵位点,此外,结合力学模拟实验,阐明了病毒诱导丝状伪足的形成和丝状伪足的回缩速度分别取决于细胞骨架动力学和病毒重力引起的底物表面摩擦阻力.进一步研究发现SARS-CoV-2通过丝状伪足进入细胞的过程依赖于小G蛋白Cdc42(细胞分裂周期蛋白42)活性和肌动蛋白相关蛋白fasin(肌动蛋白结合蛋白)、formin(成核蛋白)和Arp2/3(肌动蛋白相关蛋白2/3复合物).综上所述,本文结果强调了SARS-CoV-2感染能对宿主细胞的微丝骨架进行时空调节,使细胞形成丝状伪足作为病毒进入的“高速轨道”,丝状伪足形成相关蛋白及其信号通路可作为潜在的抗病毒靶标. 展开更多
关键词 力学模拟 亚细胞结构 随机搜索 单分子 病毒样颗粒 表面摩擦阻力 病毒侵袭 病毒颗粒
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