Abstract: Provided is a composition for cytotoxic T cell depletion, comprising an anti-LAG-3 antibody or a binding fragment thereof having the properties described in (i) to (iii) below: (i) having in vitro ADCC activity; (ii) reducing, in a low fucose form, the number of LAG-3 positive cells in vivo; and (iii) binding to activated human T cells. Also provided are methods for depleting cytotoxic T cells using the disclosed anti-LAG-3 antibody or binding fragment thereof.

Abstract: Chimeric antigen receptors (CARs) including an scFv binding to coronavirus spike protein (S309 scFv), nucleic acids encoding the CARs, vectors including nucleic acids encoding the CARs, and cells expressing the CARs are provided. Methods of treating a subject with coronavirus are also provided, including administering to the subject a modified immune cell expressing a disclosed CAR.

Abstract: The invention relates to specific binding members that bind CD137. The specific binding members comprise a CD137 antigen-binding site located in a constant domain of the specific binding member and find application in the treatment of cancer and infectious diseases, for example.

Abstract: The present application relates to antibodies specifically binding to the V-domain immunoglobulin-containing suppressor of T-cell activation (VISTA) at acidic pH and their use in cancer treatment. In some embodiments, the antibodies bind specifically to human VISTA at acidic pH, but do not significantly bind to human VISTA at neutral or physiological pH.

Abstract: The present disclosure relates to compositions and methods of treating a subject having digestive tract cancer, the method comprising: administering an effective amount of a composition to the subject, the composition comprising a first population of cells comprising a first CAR binding a first antigen, and a second population of cells comprising a second CAR binding GCC, wherein the first antigen comprises a cell surface molecule of a white blood cell (WBC).

Abstract: A monoclonal antibody specifically binding to human and monkey CD38 antigens or a derivative thereof includes: antigen complementarity-determining regions CDR1, CDR2 and CDR3 of an antibody light chain variable region having amino acid sequences as set forth in SEQ ID NO: 3, SEQ ID NO: 4 and SEQ ID NO: 5, respectively; and antigen complementarity-determining regions CDR1, CDR2 and CDR3 of an antibody heavy chain variable region having amino acid sequences as set forth in SEQ ID NO: 8, SEQ ID NO: 9 and SEQ ID NO: 10, respectively. The monoclonal antibody or derivative thereof can be used as a component of a pharmaceutical composition or prepared into a suitable pharmaceutical preparation, administered alone or combined with other therapeutic means such as chemotherapy drugs, for treating tumors with positive CD38 expression, such as human myeloma and human lymphoma.