CloneID: 1B4
Antigen Long Description: This antibody was raised by immunising TIGIT-/- mice with recombinant murine TIGIT tetramers.
Buffer Composition: PBS only.
Chimeric Use Statement: This reformatted mouse antibody was made using the variable domain sequences of the original Mouse IgG1 format, for improved compatibility with existing reagents, assays and techniques.
Uniprot Accession No.: P86176
Specificity Statement: This antibody is specific for murine TIGIT.
Application Notes (Clone): The binding specificity of this antibody for TIGIT has been confirmed in ELISA analysis and by flow cytometry using P815 cells transfected with mouse TIGIT and activated mouse splenocytes (Dixon et al, 2018). This antibody also specifically stains activated primary wild-type T cells (Dixon et al, 2018). This antibody fully blocks CD155 binding to TIGIT, and acts as a TIGIT blocking antibody in vivo. Administration of this antibody increases experimental autoimmune encephalomyelitis (EAE) severity, and retards the growth of established MC38 colon carcinoma and GL261 glioblastoma (Dixon et al, 2018). This antibody synergises with anti-PD-1 blocking antibodies to achieve complete tumour regression in colon carcinoma models (Dixon et al, 2018). The original mouse IgG1 antibody does not deplete TIGIT-expressing CD4+ or CD8+ T cells in vivo, nor affect T cell proliferation in vitro (Dixon et al, 2018).