American Association for Cancer Research
Browse
10780432ccr160122-sup-160983_2_supp_3547404_t91t6h.pptx (275.25 kB)

Supplementary Fig. 1 from Antitumor Effect of Programmed Death-1 (PD-1) Blockade in Humanized the NOG-MHC Double Knockout Mouse

Download (275.25 kB)
figure
posted on 2023-03-31, 20:08 authored by Tadashi Ashizawa, Akira Iizuka, Chizu Nonomura, Ryota Kondou, Chie Maeda, Haruo Miyata, Takashi Sugino, Koichi Mitsuya, Nakamasa Hayashi, Yoko Nakasu, Kouji Maruyama, Ken Yamaguchi, Ikumi Katano, Mamoru Ito, Yasuto Akiyama

High expression levels of phospho-STAT3 and PD-L1 proteins in the SCC-3 cell line

Funding

JSPS

History

ARTICLE ABSTRACT

Purpose: Humanized mouse models using NOD/Shi-scid-IL2rγnull (NOG) and NOD/LtSz-scid IL2rγnull (NSG) mouse are associated with several limitations, such as long incubation time for stem cell engraftment and the development of xenograft versus host disease in mice injected with peripheral blood mononuclear cells (PBMCs). To solve problems, we used humanized major histocompatibility class I- and class II-deficient NOG mice (referred to as NOG-dKO) to evaluate the antitumor effect of anti-programmed death-1 (PD-1) antibody.Experimental Design: Humanized NOG-dKO mice, in which human PBMCs and human lymphoma cell line SCC-3, or glioblastoma cell line U87 were transplanted, were used as an immunotherapy model to investigate the effect of anti-PD-1 antibody. A biosimilar anti-PD-1 mAb generated in our laboratory was administered to humanized NOG-dKO mice transplanted with tumors.Results: Within 4 weeks after transplantation, human CD45+ cells in antibody-treated mice constituted approximately 70% of spleen cells. The injection of anti-PD-1 antibody reduced by more 50% the size of SCC-3 and U87 tumors. In addition, induction of CTLs against SCC-3 cells and upregulation of natural killer cell activity was observed in the antibody-treated group. Tumor-infiltrating lymphocyte profiling showed that more exhausted marker (PD1+TIM3+LAG3+) positive T cells maintained in anti-PD-1 antibody–treated tumor. A greater number of CD8+ and granzyme-producing T cells infiltrated the tumor in mice treated with the anti-PD-1 antibody.Conclusions: These results suggest that NOG-dKO mice might serve as a good humanized immunotherapy model to evaluate the efficacy of anti-PD-1 antibody prior to the clinical treatment. Clin Cancer Res; 23(1); 149–58. ©2016 AACR.

Usage metrics

    Clinical Cancer Research

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC