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公开(公告)号:US20210198693A1
公开(公告)日:2021-07-01
申请号:US17190745
申请日:2021-03-03
Inventor: Hugh Mason , Mary Pardhe , Andrew Diamos
Abstract: Improved plant transient expression systems using optimized geminiviral vectors that efficiently produce heteromultimeric proteins are described herein. Examples of high yields are shown herein, including two, three, or four fluorescent proteins coexpressed simultaneously. Various antibodies were produced using the optimized vectors with special focus given to the creation and production of a chimeric broadly neutralizing anti-flavivirus antibody. The variable regions of this murine antibody, 2A10G6, were codon optimized and fused to a human IgG1. Analysis of the chimeric antibody showed that it was efficiently expressed in plants, can be purified to near homogeneity by a simple one-step purification process, retains its ability to recognize the Zika virus envelope protein, and induce an immune response against Zika virus. Two other monoclonal antibodies were produced at similar levels. This technology is versatile tool for the production of a wide spectrum of pharmaceutical multi-protein complexes in a fast, powerful, and cost-effective way.
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公开(公告)号:US11058766B2
公开(公告)日:2021-07-13
申请号:US16404698
申请日:2019-05-06
Inventor: Hugh Mason , Andrew Diamos , Mary Pardhe , Brandon Favre
IPC: A61K39/00 , A61K39/12 , A61K39/29 , C07K14/005 , A61K39/295 , A61P31/20 , C12N7/00 , A61K39/145
Abstract: The disclosure relates to vaccination compositions, for example, against human papillomavirus, Zika virus, and flu virus. The disclosure also relates to vectors for producing the virus-like particles and immune complex platforms of the vaccination compositions.
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公开(公告)号:US12297443B2
公开(公告)日:2025-05-13
申请号:US17190745
申请日:2021-03-03
Inventor: Hugh Mason , Mary Pardhe , Andrew Diamos
Abstract: Improved plant transient expression systems using optimized geminiviral vectors that efficiently produce heteromultimeric proteins are described herein. Examples of high yields are shown herein, including two, three, or four fluorescent proteins coexpressed simultaneously. Various antibodies were produced using the optimized vectors with special focus given to the creation and production of a chimeric broadly neutralizing anti-flavivirus antibody. The variable regions of this murine antibody, 2A10G6, were codon optimized and fused to a human IgG1. Analysis of the chimeric antibody showed that it was efficiently expressed in plants, can be purified to near homogeneity by a simple one-step purification process, retains its ability to recognize the Zika virus envelope protein, and induce an immune response against Zika virus. Two other monoclonal antibodies were produced at similar levels. This technology is versatile tool for the production of a wide spectrum of pharmaceutical multi-protein complexes in a fast, powerful, and cost-effective way.
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公开(公告)号:US20190336596A1
公开(公告)日:2019-11-07
申请号:US16404698
申请日:2019-05-06
Inventor: Hugh Mason , Andrew Diamos , Mary Pardhe
IPC: A61K39/29 , A61K39/12 , A61P31/20 , C12N7/00 , A61K39/145
Abstract: The disclosure relates to vaccination compositions, for example, against human papillomavirus, Zika virus, and flu virus. The disclosure also relates to vectors for producing the virus-like particles and immune complex platforms of the vaccination compositions.
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