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. 2023 Dec 12;11(12):e007785. doi: 10.1136/jitc-2023-007785

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© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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In vitro function of XTX101. (A,B) In vitro inhibition of human CTLA-4 binding to CD80 (A) and CD86 (B) by XTX100 (black), XTX101 (red), and activated XTX101 (blue), as assessed by ELISA. (C) In vitro activity of intact (red) and activated XTX101 (blue) compared with XTX100 (black) in antibody-dependent cellular cytotoxicity (ADCC) reporter bioassay. (D) IL-2 production of SEB-stimulated human peripheral blood mononuclear cells (PBMCs) incubated with XTX100 (black), XTX101 (red), and activated XTX101 (blue), as measured by ELISA. Fold-change from isotype at highest mAb concentration is reported. ND, not determined.