Article
Biochemistry & Molecular Biology
Yuhui Wang, Andrei V. Perepelov, Sof'ya N. Senchenkova, Gege Lu, Xiaohan Wang, Guozhen Ma, Qian Yang, Jian Yuan, Yanling Wang, Lijie Xie, Xiaolong Jiang, Jingliang Qin, Dan Liu, Miaomiao Liu, Di Huang, Bin Liu
Summary: In this study, we engineered non-pathogenic E. coli to achieve efficient biosynthesis of O21 O-antigen polysaccharide-based glycoprotein against UPEC O21, providing a guideline for the biosynthesis of other value-added glycoproteins.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Immunology
Laurent Chorro, Zhenghui Li, Ling Chu, Suddham Singh, Jianxin Gu, Jin-hwan Kim, Kaushik Dutta, Rosalind Pan, Srinivas Kodali, Duston Ndreu, Axay Patel, Julio C. Hawkins, Chris Ponce, Natalie Silmon de Monerri, David Keeney, Arthur Illenberger, C. Hal Jones, Lubomira Andrew, Jason Lotvin, A. Krishna Prasad, Isis Kanevsky, Kathrin U. Jansen, Annaliesa S. Anderson, Robert G. K. Donald
Summary: Multivalent O-antigen polysaccharide glycoconjugate vaccines are important in preventing invasive infections caused by pathogenic Enterobacteriaceae. The use of high-molecular-mass O25b long-chain lattice conjugates has been shown to improve immunogenicity and protect animals from lethal challenges. Moreover, constructing long-chain lattice conjugates with two chemistries can elicit robust immune responses in monkeys.
INFECTION AND IMMUNITY
(2022)
Article
Biochemistry & Molecular Biology
Jing Wang, Chunjun Qin, Yujuan Xu, Jian Yin, Jing Hu, Xi Guo
Summary: In this study, the structure of a novel O-antigen from Escherichia coli strain SD2019180 was established, and its role in O-antigen synthesis was confirmed through experiments.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Jing Wang, Yujuan Xu, Chunjun Qin, Jing Hu, Jian Yin, Xi Guo
Summary: The study identified the structure of the O-antigen in Escherichia coli strain LL004, showing significant differences from traditional E. coli serogroups, indicating it belongs to a novel serogroup. The O-antigen biosynthesis of LL004 was confirmed to be assembled via the Wzx/Wzy dependent pathway.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Anirban Bera, Balaram Mukhopadhyay
Summary: The chemical synthesis of the tetrasaccharide repeating unit of the O-antigen from E. coli O74 is achieved through a convergent [2 + 2] block synthesis strategy involving the preparation of the rare D-Fuc3NAc and other monosaccharide synthons, as well as stereoselective glycosylations. The target tetrasaccharide is synthesized in the form of its 2-aminoethyl glycoside to allow for further glycoconjugate formation without altering the anomeric stereochemistry.
CARBOHYDRATE RESEARCH
(2021)
Article
Veterinary Sciences
Yue Han, Ping Luo, Huan Zeng, Pu Wang, Jiali Xu, Pengju Chen, Xindan Chen, Yuji Chen, Qiyu Cao, Ruidong Zhai, Jing Xia, Simin Deng, Anchun Cheng, Changyong Cheng, Houhui Song
Summary: This study assessed the effect of O-antigen (OAg) length on Salmonella Typhimurium and found that it affects bacterial colonization, cell membrane permeability, antimicrobial activity, and immunogenicity. Shortening the OAg length by altering wzz(ST) can improve the production of antibodies and immune protection. Therefore, regulating OAg length has the potential to optimize polysaccharide vaccines.
VETERINARY RESEARCH
(2023)
Article
Chemistry, Analytical
Jino Fathy, Yongjun Lai
Summary: This paper presents a dynamic-mode microcantilever sensor based on a gap method. By applying ac electric potential and dielectrophoresis force, the sensor can detect E. coli bacteria in real-time, with the concentration and electric potential amplitude affecting the frequency shifts.
Article
Biochemistry & Molecular Biology
Chunjun Qin, Bin Hu, Yujuan Xu, Changqing Zhao, Wei Hao, Jing Wang, Xi Guo, Renpeng Li, Jing Hu, Jian Yin
Summary: The O-antigen is an important virulence factor involved in bacterial survival, virulence, and invasion. This study elucidates the structure of O-antigen from an Escherichia coli strain 2017LL031, which is completely unique compared to known E. coli serogroups. The analysis of the O-antigen gene cluster confirms its correlation to the O-antigen structure. Furthermore, experimental evidence confirms the role of the O-antigen gene cluster in O-antigen biosynthesis. Overall, a novel E. coli serotype, 2017LL031, is identified.
CARBOHYDRATE RESEARCH
(2022)
Review
Spectroscopy
Nicole Eyet, Shaun G. Ard, Nicholas S. Shuman, Albert A. Viggiano
Summary: From the 1960s onwards, flow tube apparatuses have been integral in studying ion-molecule kinetics, providing a wide range of chemical reactions involving cations, anions, and neutral reactants. This review focuses on the study of various oxygen allotropes, excluding ground state O-2 ((XSg-)-S-3), and instead examining reactions involving cations, anions, and metal chemi-ionization reactions with ground state atomic oxygen (O 3P), vibrationally excited molecular oxygen (O-2(v)), electronically excited molecular oxygen (O-2 (a???????(1)?(g))), and ozone (O-3). The review includes a historical overview of research spanning several decades, as well as recent work conducted by our group at the Air Force Research Laboratory.
MASS SPECTROMETRY REVIEWS
(2023)
Article
Microbiology
Sunmyoung Lee, Tamiko Ono, Kiyoko Aoki-Kinoshita
Summary: Researchers utilize Semantic Web techniques to standardize data exchange formats for better integration and sharing of glycomics data. By describing the E.coli O-antigen biosynthesis pathway and applying it to the BioPAX ontology, researchers provide a method for biologists to more easily understand and share glycan information.
Article
Biochemistry & Molecular Biology
Gina M. Mohammed, Heba ElSayed ElZorkany, Khaled Y. Farroh, Wafaa R. Abd El-Aziz, Hisham A. Elshoky
Summary: The study aimed to produce an efficient vaccine using CS and AsCS nanoparticles from E. coli O1 and O78 serogroups to control colibacillosis in chicken. Adding chitosan nanoparticles can improve vaccine efficacy by inducing strong immunity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Microbiology
Christina Lang, Angelika Fruth, Ian W. Campbell, Claire Jenkins, Peyton Smith, Nancy Strockbine, Francois-Xavier Weill, Ulrich Nuebel, Yonatan H. Grad, Matthew K. Waldor, Antje Flieger
Summary: STEC O104:H4 outbreak strain remains a global threat due to similar strains causing disease worldwide, but the diversification of O-antigens in ST678 strains has made their identification difficult. A rare STEC serotype, O181:H4, associated with HUS, was identified in Germany, and this strain is phylogenetically related to the STEC O104:H4 outbreak strain. Other serotypes belonging to ST678 were also identified from human clinical infections worldwide, including OX13:H4, O127:H4, OgN-RKI9:H4, O131:H4, and O69:H4.
MICROBIOLOGY SPECTRUM
(2023)
Article
Chemistry, Organic
Arsenii S. Solovev, Evgeniya M. Denisova, Ekaterina A. Kurbatova, Olga Y. Kutsevalova, Liubov G. Boronina, Vladimir A. Ageevets, Sergey V. Sidorenko, Vadim B. Krylov, Nikolay E. Nifantiev
Summary: Methylphosphorylated oligosaccharides structurally related to the O-antigens of Klebsiella pneumoniae were synthesized and used for antibody detection in ELISA. The antibodies specifically recognized the synthesized oligosaccharides, suggesting their potential use for serological diagnostics and strain serotyping of Klebsiella pneumoniae.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Takahiro Yoshizue, Subbaian Brindha, Rawiwan Wongnak, Hitoshi Takemae, Mami Oba, Tetsuya Mizutani, Yutaka Kuroda
Summary: E. coli-expressed proteins as a subunit vaccine antigen can induce neutralizing antibodies if properly folded. In this study, we compared the effectiveness of an E. coli-expressed SARS-CoV-2 receptor-binding domain (RBD) with the mammalian cell-produced S1 subunit as antigens. Mice immunized with two injections of RBD or S1 alone showed some protection against SARS-CoV-2, but a mixed injection scheme provided significantly higher protection.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Microbiology
Bin Liu, Chengqian Qian, Pan Wu, Xiaodan Li, Yutao Liu, Huiqian Mu, Min Huang, Yang Zhang, Tianyuan Jia, Yuanyuan Wang, Lu Wang, Xiao Zhang, Di Huang, Bin Yang, Lu Feng, Lei Wang
Summary: Enterohemorrhagic Escherichia coli regulates its cell wall structure during infection, balancing survival in the intestinal lumen and infection of intestinal epithelial cells. The bacteria express long-chain OAg in the intestinal lumen for increased resistance to antimicrobial peptides, but reduce OAg chain length upon sensing epithelial cell attachment, leading to enhanced injection of T3SS effectors into epithelial cells for host cell infection. This regulatory mechanism may be widespread in pathogenic bacteria and closely related to bacterial pathogenesis.
Article
Biochemistry & Molecular Biology
Shuang Yang, Daoyi Xi, Fuyi Jing, Deju Kong, Junli Wu, Lu Feng, Boyang Cao, Lei Wang
CANADIAN JOURNAL OF MICROBIOLOGY
(2018)
Article
Multidisciplinary Sciences
Xiaojun Zhang, Jianbo Yuan, Yamin Sun, Shihao Li, Yi Gao, Yang Yu, Chengzhang Liu, Quanchao Wang, Xinjia Lv, Xiaoxi Zhang, Ka Yan Ma, Xiaobo Wang, Wenchao Lin, Long Wang, Xueli Zhu, Chengsong Zhang, Jiquan Zhang, Songjun Jin, Kuijie Yu, Jie Kong, Peng Xu, Jack Chen, Hongbin Zhang, Patrick Sorgeloos, Amir Sagi, Acacia Alcivar-Warren, Zhanjiang Liu, Lei Wang, Jue Ruan, Ka Hou Chu, Bin Liu, Fuhua Li, Jianhai Xiang
NATURE COMMUNICATIONS
(2019)
Correction
Microbiology
Lingyan Jiang, Lu Feng, Bin Yang, Wenwen Zhang, Peisheng Wang, Xiaohan Jiang, Lei Wang
Review
Microbiology
Bin Liu, Axel Furevi, Andrei Perepelov, Xi Guo, Hengchun Cao, Quan Wang, Peter R. Reeves, Yuriy A. Knirel, Lei Wang, Goran Widmalm
FEMS MICROBIOLOGY REVIEWS
(2020)
Article
Biochemistry & Molecular Biology
Dalong Hu, Bin Liu, Lei Wang, Peter R. Reeves
MOLECULAR BIOLOGY AND EVOLUTION
(2020)
Article
Chemistry, Applied
Xiaolong Jiang, Jing Bai, Jian Yuan, Huijing Zhang, Gege Lu, Yuhui Wang, Lingyan Jiang, Bin Liu, Lei Wang, Di Huang, Lu Feng
Summary: By reprogramming the metabolic network, the research team increased the yield of OPS-based glycoconjugate vaccines to 38.6 mg L-1, the highest reported so far. Mass spectrometry analysis showed a high glycosylation efficiency of the designed glycosylation sequon in CTB-O5 and CTB-O7, demonstrating the effectiveness of the glyco-optimized platform in producing vaccines against ExPEC.
CARBOHYDRATE POLYMERS
(2021)
Article
Immunology
Shujie Li, Yu Pang, Si Zhang, Qing Li, Qian Wang, Lei Wang, Lu Feng
Summary: This study provides the first comprehensive analysis of the transcriptome profile of UPEC during its intra-BECs life, revealing a new virulence-associated gene and its regulatory mechanism.
MICROBIAL PATHOGENESIS
(2021)
Article
Multidisciplinary Sciences
Lingyan Jiang, Peisheng Wang, Xiaorui Song, Huan Zhang, Shuangshuang Ma, Jingting Wang, Wanwu Li, Runxia Lv, Xiaoqian Liu, Shuai Ma, Jiaqi Yan, Haiyan Zhou, Di Huang, Zhihui Cheng, Chen Yang, Lu Feng, Lei Wang
Summary: S. Typhimurium infection induces upregulated glycolysis and decreased serine synthesis in host macrophages, leading to accumulation of glycolytic intermediates that promote bacterial replication and virulence.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Yutao Liu, Bin Liu, Tingting Xu, Qian Wang, Wendi Li, Jialin Wu, Xiaoyu Zheng, Bin Liu, Ruiying Liu, Xingmei Liu, Xi Guo, Lu Feng, Lei Wang
Summary: The study identifies a fructose uptake system crucial for the growth of Vibrio cholerae in seawater, where fructose concentrations are low. This system may be important for the survival of pandemic V. cholerae in seawater.
NATURE COMMUNICATIONS
(2021)
Article
Microbiology
Bin Liu, Chengqian Qian, Pan Wu, Xiaodan Li, Yutao Liu, Huiqian Mu, Min Huang, Yang Zhang, Tianyuan Jia, Yuanyuan Wang, Lu Wang, Xiao Zhang, Di Huang, Bin Yang, Lu Feng, Lei Wang
Summary: Enterohemorrhagic Escherichia coli regulates its cell wall structure during infection, balancing survival in the intestinal lumen and infection of intestinal epithelial cells. The bacteria express long-chain OAg in the intestinal lumen for increased resistance to antimicrobial peptides, but reduce OAg chain length upon sensing epithelial cell attachment, leading to enhanced injection of T3SS effectors into epithelial cells for host cell infection. This regulatory mechanism may be widespread in pathogenic bacteria and closely related to bacterial pathogenesis.
Article
Food Science & Technology
Min Wang, Bin Liu, Yanli Xu, Xi Guo, Tian Fu, Jiafei Liu, Lei Wang
Summary: In this study, the O-antigen gene clusters of V. fluvialis were analyzed by whole-genome sequencing, and a microsphere-based suspension array (MSA) was developed for the identification of different serogroups. Additionally, 13 new O-antigen gene cluster types were discovered. This method provides a rapid and efficient tool for detecting and identifying V. fluvialis serogroups, with potential applications in epidemiological investigations and food safety.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2022)
Article
Cell Biology
Yu Pang, Zhihui Cheng, Si Zhang, Shujie Li, Xueping Li, Xiaodan Li, Xiao Zhang, Xiaoxiao Li, Yingxing Feng, Heting Cui, Zhen Chen, Le Liu, Qing Li, Jianxiao Huang, Mingqing Zhang, Siwei Zhu, Lei Wang, Lu Feng
Summary: Urinary tract infections are mainly caused by uropathogenic Escherichia coli (UPEC). This study reveals that UPEC senses host immune responses and initiates escape by upregulating a key phospholipase. The findings provide insights into pathogenic bacteria's response to intracellular phosphate shortage and tackling host defense, and offer potential for developing new therapeutic agents to treat UPEC infection.
Article
Cell Biology
Lu Feng, Bin Yang, Yongchang Xu, Yingying Xiong, Fang Wang, Bin Liu, Wen Yang, Ting Yao, Lei Wang
Summary: This study reveals a signal transduction pathway for the activation of virulence in EHEC O157:H7, providing insights into the relationship between adherence, gene regulation, and pathogenicity.
Article
Cell Biology
Hao Sun, Xuehua Wan, Yu Fan, Peng Liu, Yajun Song, Ningyu Zhu, Zhifeng Duan, Qian Wang, Fang Chen, Changhong Zhou, Yangyang Zheng, Peng Ding, Fenxia Liu, Lu Feng, Kwang Sik Kim, Lei Wang
Summary: The immune response of brain cells to invading bacteria and the mechanism used by pathogenic bacteria to escape immune surveillance in the brain are still not well understood. Microglia can engulf pathogenic bacteria and activate astrocytes to produce C3 for antibacterial activity. Pathogenic bacteria can sense low concentration of threonine in cerebrospinal fluid to reduce the immune response.
Article
Multidisciplinary Sciences
Bin Liu, Yutao Liu, Bin Yang, Qian Wang, Xingmei Liu, Jingliang Qin, Ke Zhao, Fan Li, Xiaohui Feng, Linxing Li, Pan Wu, Miaomiao Liu, Siwei Zhu, Lu Feng, Lei Wang
Summary: This study reveals that EHEC O157:H7 acquired a previously uncharacterized regulatory system rbfSR, which senses riboflavin produced by gut microbiota and activates the expression of virulence genes. This acquisition represents an essential step in the evolution of the highly pathogenic O157:H7. The introduction of rbfSR into other EHEC serotypes also increased their pathogenicity, indicating a potential public health issue.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)