Journal: Theranostics
Article Title: Tandem CAR-T cells targeting CD70 and B7-H3 exhibit potent preclinical activity against multiple solid tumors
doi: 10.7150/thno.43991
Figure Lengend Snippet: Antitumor response of TanCAR-T cells against CD70 and B7-H3 positive tumors in vivo . (A) The treatment scheme showed the timing of subcutaneous injection of tumor cells, vein-tail injection of CAR-T cells T cells and in vivo optical imaging. (B) Antitumor response of TanCAR-T cells in human subcutaneous xenograft models. NCI-H460.ffLuc or A375.ffLuc tumor bearing (confirmed by imaging 6 days after tumor implantation, 8/group) mice were adoptively transferred through tail vein injection with NT, CD70 CAR 2 , B7-H3 CAR or high/low doses (5×10 6 or 1×10 6 /mouse) of TanCAR T cells on 7 days and 10 days post tumor inoculation. (C) Tumor growth was measured weekly by using Living Image software, and mean values per treated group were shown. (D) Kaplan-Meier survival curve were performed 75 days after T cells injection. Mice treated with TanCAR-T cells had a significantly longer survival probability in comparison with mice with NT, CD70 CAR 2 or B7-H3 CAR-T cells.
Article Snippet: Tumor cell surface expression of CD70 and B7-H3 were detected using CD70 scFv.mFc and B7-H3 scFv.hFc chimeric proteins followed by Cy3-conjuncted goat anti-mouse Fc (Proteintech) for CD70 scFv.hFc and Alexa Fluor 594-conjugated goat anti-human Fc (Jackson ImmunoResearch) for B7-H3 scFv.hFc.
Techniques: In Vivo, Injection, Optical Imaging, Imaging, Tumor Implantation, Software