Supplemental Figures 1 - 8 from Antitumor Efficacy of a Bispecific Antibody That Targets HER2 and Activates T Cells

Supplemental Fig. 1: Characteristics of T cell activation and killing induced by HER2-TDB. Supplemental Fig 2: Activation of T cells by HER2-TDB induces T cell proliferation. Supplemental Figure 3. Activity of HER2-TDB in NOD-SCID mice is dependent on human PBMCs. Supplemental Figure 4. TDB mediated killing by CD3-TG splenic T cells. Supplemental Figure 5. Effect of 4D5 on established mammary tumors in MMTV-huHER2 transgenic mice. CD3-TG T cells express both mouse and human CD3 on approximately 50% level of respective Balb/c mouse or human T cells. Supplemental Figure 6. Anti-tumor activity of HER2-TDB is T cell dependent. Supplemental Figure 7. T cells in CT26-HER2 tumors display CD69 activation marker. Supplemental Figure 8. CT-26-HER2 tumor infiltrating T cells express PD-1. CT-26-HER2 tumor cells express PD-L1.