1
|
Kim J, Jang H, Lee GJ, Hur Y, Keum J, Jo JK, Yun SE, Park SJ, Park YJ, Choi MJ, Kim KS, Kim J. A Novel Kinase Inhibitor AX-0085 Inhibits Interferon-γ-Mediated Induction of PD-L1 Expression and Promotes Immune Reaction to Lung Adenocarcinoma Cells. Cells 2021; 11:19. [PMID: 35011581 PMCID: PMC8750969 DOI: 10.3390/cells11010019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/14/2021] [Accepted: 12/17/2021] [Indexed: 12/14/2022] Open
Abstract
In this study, we describe a novel kinase inhibitor AX-0085 which can suppress the induction of PD-L1 expression by Interferon-γ (IFN-γ) in lung adenocarcinoma (LUAD) cells. AX-0085 effectively blocks JAK2/STAT1 signaling initiated by IFN-γ treatment and prevents nuclear localization of STAT1. Importantly, we demonstrate that AX-0085 reverses the IFN-γ-mediated repression of T cell activation in vitro and enhances the anti-tumor activity of anti-PD-1 antibody in vivo when used in combination. Finally, transcriptomic analyses indicated that AX-0085 is highly specific in targeting the IFN-γ-pathway, thereby raising the possibility of applying this reagent in combination therapy with checkpoint inhibitor antibodies. It may be particularly relevant in cases in which PD-L1-mediated T cell exhaustion leads to immunoevasive phenotypes.
Collapse
Affiliation(s)
- Jusong Kim
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
| | - Haeyeon Jang
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
| | - Gyu Jin Lee
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
| | - Yelim Hur
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
| | - Juhee Keum
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
| | - Jung Ki Jo
- Department of Urology, College of Medicine, Hanyang University, Seoul 04763, Korea;
| | - Si-Eun Yun
- R&D Center, Axceso Biopharma Co., Ltd., Yongin 14056, Korea; (S.-E.Y.); (S.J.P.); (Y.J.P.); (M.J.C.)
| | - Sung Jun Park
- R&D Center, Axceso Biopharma Co., Ltd., Yongin 14056, Korea; (S.-E.Y.); (S.J.P.); (Y.J.P.); (M.J.C.)
| | - Young Jun Park
- R&D Center, Axceso Biopharma Co., Ltd., Yongin 14056, Korea; (S.-E.Y.); (S.J.P.); (Y.J.P.); (M.J.C.)
| | - Myeong Jun Choi
- R&D Center, Axceso Biopharma Co., Ltd., Yongin 14056, Korea; (S.-E.Y.); (S.J.P.); (Y.J.P.); (M.J.C.)
| | - Kye-Seong Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, Korea;
- Hanyang Biomedical Research Institute, College of Medicine, Hanyang University, Seoul 04763, Korea
| | - Jaesang Kim
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
| |
Collapse
|