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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cell 2021 ; 184 (11): 2955-2972.e25 Nephropedia Template TP
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Fab-dimerized glycan-reactive antibodies are a structural category of natural antibodies #MMPMID34019795
Williams WB; Meyerhoff RR; Edwards RJ; Li H; Manne K; Nicely NI; Henderson R; Zhou Y; Janowska K; Mansouri K; Gobeil S; Evangelous T; Hora B; Berry M; Abuahmad AY; Sprenz J; Deyton M; Stalls V; Kopp M; Hsu AL; Borgnia MJ; Stewart-Jones GBE; Lee MS; Bronkema N; Moody MA; Wiehe K; Bradley T; Alam SM; Parks RJ; Foulger A; Oguin T; Sempowski GD; Bonsignori M; LaBranche CC; Montefiori DC; Seaman M; Santra S; Perfect J; Francica JR; Lynn GM; Aussedat B; Walkowicz WE; Laga R; Kelsoe G; Saunders KO; Fera D; Kwong PD; Seder RA; Bartesaghi A; Shaw GM; Acharya P; Haynes BF
Cell 2021[May]; 184 (11): 2955-2972.e25 PMID34019795show ga
Natural antibodies (Abs) can target host glycans on the surface of pathogens. We studied the evolution of glycan-reactive B cells of rhesus macaques and humans using glycosylated HIV-1 envelope (Env) as a model antigen. 2G12 is a broadly neutralizing Ab (bnAb) that targets a conserved glycan patch on Env of geographically diverse HIV-1 strains using a unique heavy-chain (V(H)) domain-swapped architecture that results in fragment antigen-binding (Fab) dimerization. Here, we describe HIV-1 Env Fab-dimerized glycan (FDG)-reactive bnAbs without V(H)-swapped domains from simian-human immunodeficiency virus (SHIV)-infected macaques. FDG Abs also recognized cell-surface glycans on diverse pathogens, including yeast and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike. FDG precursors were expanded by glycan-bearing immunogens in macaques and were abundant in HIV-1-naive humans. Moreover, FDG precursors were predominately mutated IgM(+)IgD(+)CD27(+), thus suggesting that they originated from a pool of antigen-experienced IgM(+) or marginal zone B cells.
|Animals[MESH]
|Antibodies, Neutralizing/*immunology[MESH]
|B-Lymphocytes/immunology[MESH]
|Broadly Neutralizing Antibodies/immunology[MESH]
|COVID-19/immunology[MESH]
|Dimerization[MESH]
|Epitopes/immunology[MESH]
|Glycosylation[MESH]
|HIV Antibodies/immunology[MESH]
|HIV Infections/immunology[MESH]
|HIV-1/*immunology[MESH]
|Humans[MESH]
|Immunoglobulin Fab Fragments/chemistry/*immunology[MESH]