Results 71 to 80 of about 419,621 (293)

Nano Proton Scavengers Modulate Endosomal pH to Inhibit Microglial Activation and Enhance Stroke Recovery

Advanced Science, EarlyView.
Amphiphilic sulfonated chitosan nanoparticles buffer endo/lysosomal acidity in microglia by limiting V‐ATPase membrane recruitment and restoring endosomal homeostasis. Following systemic administration, they accumulate in the ischemic hemisphere partly through association with infiltrating immune cells, suppress TLR3/IRF3 and TLR4/NF‐κB signaling ...
Xuanlin Wang, Yujing Shi, Zehua Gao, Jing Wang, Changsheng Liu   +4 more
wiley   +1 more source

Backbone dynamics of complement control protein (CCP) modules reveals mobility in binding surfaces [PDF]

, 2004
The regulators of complement activation (RCA) are critical to health and disease because their role is to ensure that a complement-mediated immune response to infection is proportionate and targeted.
Krystyna Bromek, Uhrin, D, O'Leary, JM, Xuefeng Wang, Stanislava Uhrinova, Joanne M. O'Leary, Black, GM, Wang, XF, Malgorzata Krych, John P. Atkinson, Uhrinova, S, Dusan Uhrin, Atkinson, JP, Gordon M. Black, Krych, M, Schmitz, C, Paul N. Barlow, Bromek, K, Barlow, PN, Christian Schmitz   +19 more
core   +1 more source

Crystal Structure of the MACPF Domain of Human Complement Protein C8α in Complex with the C8γ Subunit [PDF]

Journal of Molecular Biology, 2008
Human C8 is one of five complement components (C5b, C6, C7, C8, and C9) that assemble on bacterial membranes to form a porelike structure referred to as the "membrane attack complex" (MAC). C8 contains three genetically distinct subunits (C8 alpha, C8 beta, C8 gamma) arranged as a disulfide-linked C8 alpha-gamma dimer that is noncovalently associated ...
Slade, Daniel J., Lovelace, Leslie L., Chruszcz, Maksymilian, Minor, Wladek, Lebioda, Lukasz, Sodetz, James M.   +5 more
openaire   +4 more sources

Reversing Macrophage Immunometabolic Dysfunction in Prolonged Infections Via a Glutaminolysis‐Fueled Restoration‐Based Hierarchically Selective Therapeutic System

Advanced Science, EarlyView.
A hierarchically selective immunotherapeutic nanoplatform, mGls@HEV‐MTP, selectively restores macrophage immunocompetence through GLS1‐mediated restoration of glutaminolysis‐fueled anaplerosis. Concurrently, it renders Staphylococcus aureus (S. aureus) more readily recognizable to the metabolically reprogrammed macrophages, thereby facilitating ...
Weinan Yang, Zihao An, Honglu Cai, Congsun Li, Jiaxuan Zou, Wushi Cui, Wentao Chen, Tao Zhang, Shicheng Wang, Zizhan Su, Jian Xiao, Tao Sun, Bin Hu, Min Cheng, Zhongru Gou, Jianbin Xu, An Liu, Haobo Wu   +17 more
wiley   +1 more source

Staphylococcus aureus proteins Sbi and Efb recruit human plasmin to degrade complement C3 and C3b [PDF]

, 2012
Upon host infection, the human pathogenic microbe Staphylococcus aureus (S. aureus) immediately faces innate immune reactions such as the activated complement system. Here, a novel innate immune evasion strategy of S. aureus is described.
Peter F. Zipfel, Christine Skerka, Kraiczy, Peter, Michael Reuter, Reuter, Michael, Skerka, Christine, Barthel, Diana, Diana Barthel, Koch, Tina K., Elsen, Jean van den, Böhm, Sascha, Zipfel, Peter F., Jean van den Elsen, Peter Kraiczy, Tina K Koch, Sascha Böhm, Peter F Zipfel, Tina K. Koch   +17 more
core   +1 more source

Bacterial killing by complement requires direct anchoring of membrane attack complex precursor C5b-7.

PLoS Pathogens, 2020
An important effector function of the human complement system is to directly kill Gram-negative bacteria via Membrane Attack Complex (MAC) pores. MAC pores are assembled when surface-bound convertase enzymes convert C5 into C5b, which together with C6 ...
Dennis J Doorduijn, Bart W Bardoel, Dani A C Heesterbeek, Maartje Ruyken, Georgina Benn, Edward S Parsons, Bart W Hoogenboom, Suzan H M Rooijakkers   +7 more
doaj   +1 more source

Single‐Cell Profiling Reveals Clonally Expanded CX3CR1+ T Cells in Anti‐NMDA Receptor Encephalitis

Advanced Science, EarlyView.
CX3CR1+ T cells are associated with peripheral and central immune alterations in anti‐NMDA receptor encephalitis (NMDAR‐E). They show potential responsiveness to GluN1 (NR1) peptides, potential interactions with peripheral B cells, clonal expansion, increased CD137/CD154 expression, and inflammatory cytokine production. Their preferential cerebrospinal
Lin Yan, Erdi Zhang, Yuwen Ma, Zirui Meng, Sisi Li, Yimeng Ren, Xiaohe Tian, Yangyi He, Giuseppe Battaglia, Dong Zhou, Yun Liao, Binwu Ying, Jinmei Li, Minjin Wang   +13 more
wiley   +1 more source

Unveiling the Complete Biosynthetic Pathway of Azacitidine: A Rare 1,3,5‐Triazine Nucleoside Derived From GTP

Angewandte Chemie, EarlyView.
The azacitidine biosynthetic gene cluster (aza BGC) was identified by the resistance‐gene‐guided comparative genomics method in Streptomyces mobaraensis IPIO2. The complete biosynthetic pathway of azacitidine, which follows a “base‐first‐then‐glycosylation” logic, was elucidated through in vivo and in vitro experiments.
Dan Wang, Qingxu Meng, Lingqi Hua, Mengjun Sun, Qianjin Kang, Min‐Juan Xu, Linquan Bai   +6 more
wiley   +2 more sources

Supramolecular Zinc–Polyphenol Coordination Assemblies Mitigate Colonic Inflammation by Regulating Mucosal Barrier and Microbiome

Advanced Science, EarlyView.
A carrier‐free zinc‐coordinated polyphenol nanoplatform (ZnCA NPs) is designed as an “all‐in‐one” therapeutic strategy for intestinal inflammation. The ZnCA NPs exhibit enhanced colonic accumulation and broad‐spectrum reactive oxygen and nitrogen species scavenging.
Qiwen Xie, Mai Ye, Xuexia Liu, Jing Wang, Ying Chen, Lu Tan, Jinheng Fu, Xiaochang Huang   +7 more
wiley   +1 more source

Borrelia recurrentis employs a novel multifunctional surface protein with anti-complement, anti-opsonic and invasive potential to escape innate immunity [PDF]

, 2009
Borrelia recurrentis, the etiologic agent of louse-borne relapsing fever in humans, has evolved strategies, including antigenic variation, to evade immune defence, thereby causing severe diseases with high mortality rates.
Schott, Melanie, Sonja Grosskinsky, Markus M. Simon, Grosskinsky, Sonja, Cutler, Sally J., Schott, M., Simon, M., Kraiczy, P., Zipfel, Peter F., Grosskinsky, S., Peter Kraiczy, Sally J Cutler, Peter F Zipfel, Peter F. Zipfel, Brenner, Christiane, Wallich, R., Kraiczy, Peter, Brenner, C., Christiane Brenner, Simon, Markus M., Markus M Simon, Wallich, Reinhard, Sally J. Cutler, Reinhard Wallich, Cutler, S., Zipfel, P., Melanie Schott   +26 more
core   +2 more sources