Author: Keating, Sheila M.; Mizrahi, Rena A.; Adams, Matthew S.; Asensio, Michael A.; Benzie, Emily; Carter, Kyle P.; Chiang, Yao; Edgar, Robert C.; Gautam, Bishal K.; Gras, Ashley; Leong, Jackson; Leong, Renee; Lim, Yoong Wearn; Manickam, Vishal A.; Medina-Cucurella, Angelica V.; Niedecken, Ariel R.; Saini, Jasmeen; Simons, Jan Fredrik; Spindler, Matthew J.; Stadtmiller, Kacy; Tinsley, Brendan; Wagner, Ellen K.; Wayham, Nicholas; Tracy, LaRee; Lundberg, Carina Vingsbo; Büscher, Dirk; Terencio, Jose Vicente; Roalfe, Lucy; Pearce, Emma; Richardson, Hayley; Goldblatt, David; Ramjag, Anushka T.; Carrington, Christine V.F.; Simmons, Graham; Muench, Marcus O.; Chamow, Steven M.; Monroe, Bryan; Olson, Charles; Oguin, Thomas H.; Lynch, Heather; Jeanfreau, Robert; Meyer, Everett H.; Adler, Adam S.; Johnson, David S.
Title: Capturing and Recreating Diverse Antibody Repertoires as Multivalent Recombinant Polyclonal Antibody Drugs Cord-id: 893l8ej7 Document date: 2020_8_6
ID: 893l8ej7
Snippet: Plasma-derived polyclonal antibodies are polyvalent drugs used for many important clinical indications that require modulation of multiple drug targets simultaneously, including emerging infectious disease and transplantation. However, plasma-derived drugs suffer many problems, including low potency, impurities, constraints on supply, and batch-to-batch variation. In this study, we demonstrated proofs-of-concept for a technology that uses microfluidics and molecular genomics to capture diverse m
Document: Plasma-derived polyclonal antibodies are polyvalent drugs used for many important clinical indications that require modulation of multiple drug targets simultaneously, including emerging infectious disease and transplantation. However, plasma-derived drugs suffer many problems, including low potency, impurities, constraints on supply, and batch-to-batch variation. In this study, we demonstrated proofs-of-concept for a technology that uses microfluidics and molecular genomics to capture diverse mammalian antibody repertoires as multivalent recombinant drugs. These “recombinant hyperimmune†drugs comprised thousands to tens of thousands of antibodies and were derived from convalescent human donors, or vaccinated human donors or immunized mice. Here we used our technology to build a highly potent recombinant hyperimmune for Severe Acute Respiratory Syndrome Coronavirus-2 (SARS CoV-2) in less than three months. We also validated a recombinant hyperimmune for Zika virus disease that abrogates antibody-dependent enhancement (ADE) through Fc engineering. For patients with primary immune deficiency (PID), we built high potency polyvalent recombinant hyperimmunes against pathogens that commonly cause serious lung infections. Finally, to address the limitations of rabbit-derived anti-thymocyte globulin (ATG), we generated a recombinant human version and demonstrated in vivo function against graft-versus-host disease (GVHD). Recombinant hyperimmunes are a novel class of drugs that could be used to target a wide variety of other clinical applications, including cancer and autoimmunity.
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