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10.1073/pnas.1619249114 http://scihub22266oqcxt.onion/10.1073/pnas.1619249114 C5422811!5422811 !28428342     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=28428342 &cmd=llinks): Failed to open stream: HTTP request failed! 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Lysibodies are IgG Fc fusions with lysin binding domains targeting Staphylococcus aureus wall carbohydrates for effective phagocytosis |pdf=|usr=}}{{28428342 }} gab.com Text Lysibodies are IgG Fc fusions with lysin binding domains targeting Staphylococcus aureus wall carbohydrates for effective phagocytosis JO: Proc Natl Acad Sci U S A http://www.kidney.de/pget.php?&tw=1&pmid=28428342 #FOAvip The cell wall of Gram-positive bacteria contains abundant surface-exposed carbohydrate molecules that are highly conserved within and often across species. The potential therapeutic usefulness of high-affinity antibodies to cell wall carbohydrates is unquestioned, however obtaining such antibodies is challenging due to the poor overall immunogenicity of these bacterial targets. Autolysins and phage lysins are peptidoglycan hydrolases, enzymes that have evolved over a billion years to degrade bacterial cell wall. Such wall hydrolases are modular enzymes, composed of discrete domains for high-affinity binding to cell wall carbohydrates and cleavage activity. In this study, we demonstrate that binding domains from autolysins and lysins can be fused to the Fc region of human IgG, creating a fully functional homodimer (or "lysibody") with high-affinity binding and specificity for carbohydrate determinants on the bacterial surface. Furthermore, we demonstrate that this process is reproducible with three different binding domains specific to methicillin-resistant Staphylococcus aureus (MRSA). Cell-bound lysibodies induced the fixation of complement on the bacterial surface, promoted phagocytosis by macrophages and neutrophils, and protected mice from MRSA infection in two model systems. The lysibody approach could be used to target a range of difficult-to-treat pathogenic bacteria, given that cell wall hydrolases are ubiquitous in nature. Twit Text FOAVip Lysibodies are IgG Fc fusions with lysin binding domains targeting Staphylococcus aureus wall carbohydrates for effective phagocytosis ????Proc Natl Acad Sci U S A http://www.kidney.de/pget.php?&tw=1&pmid=28428342 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=28428342 #FOAvip English Wikipedia <ref>{{Cite pmid|28428342 }}</ref> Lysibodies are IgG Fc fusions with lysin binding domains targeting Staphylococcus aureus wall carbohydrates for effective phagocytosis #MMPMID28428342 Raz A ; Serrano A ; Lawson C ; Thaker M ; Alston T ; Bournazos S ; Ravetch JV ; Fischetti VA Proc Natl Acad Sci U S A 2017[May]; 114 (18 ): 4781-4786 PMID28428342 show ga The cell wall of Gram-positive bacteria contains abundant surface-exposed carbohydrate molecules that are highly conserved within and often across species. The potential therapeutic usefulness of high-affinity antibodies to cell wall carbohydrates is unquestioned, however obtaining such antibodies is challenging due to the poor overall immunogenicity of these bacterial targets. Autolysins and phage lysins are peptidoglycan hydrolases, enzymes that have evolved over a billion years to degrade bacterial cell wall. Such wall hydrolases are modular enzymes, composed of discrete domains for high-affinity binding to cell wall carbohydrates and cleavage activity. In this study, we demonstrate that binding domains from autolysins and lysins can be fused to the Fc region of human IgG, creating a fully functional homodimer (or "lysibody") with high-affinity binding and specificity for carbohydrate determinants on the bacterial surface. Furthermore, we demonstrate that this process is reproducible with three different binding domains specific to methicillin-resistant Staphylococcus aureus (MRSA). Cell-bound lysibodies induced the fixation of complement on the bacterial surface, promoted phagocytosis by macrophages and neutrophils, and protected mice from MRSA infection in two model systems. The lysibody approach could be used to target a range of difficult-to-treat pathogenic bacteria, given that cell wall hydrolases are ubiquitous in nature. |Cell Wall/*metabolism [MESH] |HL-60 Cells [MESH] |Humans [MESH] |Immunoglobulin Fc Fragments/genetics/*pharmacology [MESH] |N-Acetylmuramoyl-L-alanine Amidase/genetics/*pharmacology [MESH] |Phagocytosis/*drug effects [MESH] |Polysaccharides, Bacterial/antagonists & inhibitors/*metabolism [MESH] |Recombinant Fusion Proteins/genetics/*pharmacology [MESH]Lysibodies are IgG Fc fusions with lysin binding domains targeting Sta(epmc).pdf DeepDyve Pubget Overpricing