Lipid-Based Antigens and T-Cell Receptors on NK Cells

    公开(公告)号:US20200283531A1

    公开(公告)日:2020-09-10

    申请号:US16753330

    申请日:2018-10-04

    申请人: NantCell, Inc.

    摘要: Compositions, methods and uses of genetically modified NK cells to elicit immune response against cells infected with microorganisms are presented. In some embodiments, NK cells can be genetically modified with a recombinant nucleic acid that includes a segment encoding an extracellular single-chain variant fragment that specifically binds a CD1-lipid antigen complex and another segment encoding an intracellular activation domain, and a linker between those segments. In other embodiments, the NK cells can be genetically modified with a recombinant nucleic acid that includes a segment encoding an a chain T cell receptor and a β chain T cell receptor, and another segment encoding at least a portion of CD3δ and at least a portion of CD3γ. The genetically modified NK cells can be administered to the patient infected with microorganism to trigger immune response specific to the cells infected with the microorganism.

    Multivalent Antigens Stimulating TH1 and TH2
    78.
    发明申请

    公开(公告)号:US20200331976A1

    公开(公告)日:2020-10-22

    申请号:US16753272

    申请日:2018-10-04

    申请人: NANTCELL, INC.

    摘要: Compositions, methods, and uses of recombinant nucleic acids to elicit Th1- or Th2-biased immune responses in an individual are presented. In some embodiments, the nucleic acid includes a first nucleic acid segment encoding a MHC-II trafficking signal and a second nucleic acid segment encoding a polytope peptide and a Th1-specific polarizing epitope or a Th2-specific polarizing epitope. Optionally, the Th1-specific polarizing epitope or the Th2-specific polarizing epitope is part of the polytope peptide. The recombinant nucleic acid can be inserted in a viral, bacterial, or yeast expression vector so that the recombinant protein encoded by the recombinant nucleic acid can be expressed in an antigen presenting cell of an individual to elicit Th1- or Th2-biased immune response in the individual.