Synergistic Effects of Cabozantinib and EGFR-Specific CAR-NK-92 Cells in Renal Cell Carcinoma

The chimeric antigen receptor-modified immune effector cell (CAR-T and CAR-NK) therapies are newly developed adoptive treatments of cancers. However, their therapeutic efficacy against solid tumors is limited. Combining CAR-T or CAR-NK cells with chemotherapeutic drugs to treat solid tumor may be a...

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Main Authors: Qing Zhang, Kang Tian, Jinjing Xu, Haixu Zhang, Liantao Li, Qiang Fu, Dafei Chai, Huizhong Li, Junnian Zheng
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Journal of Immunology Research
Online Access:http://dx.doi.org/10.1155/2017/6915912
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author Qing Zhang
Kang Tian
Jinjing Xu
Haixu Zhang
Liantao Li
Qiang Fu
Dafei Chai
Huizhong Li
Junnian Zheng
author_facet Qing Zhang
Kang Tian
Jinjing Xu
Haixu Zhang
Liantao Li
Qiang Fu
Dafei Chai
Huizhong Li
Junnian Zheng
author_sort Qing Zhang
collection DOAJ
description The chimeric antigen receptor-modified immune effector cell (CAR-T and CAR-NK) therapies are newly developed adoptive treatments of cancers. However, their therapeutic efficacy against solid tumors is limited. Combining CAR-T or CAR-NK cells with chemotherapeutic drugs to treat solid tumor may be a promising strategy. We developed an epidermal growth factor- (EGFR-) specific third-generation CAR. NK-92 cells were modified with the CAR by lentivirus infection. The specific killing ability of the CAR-modified NK-92 cells (CAR-NK-92) against renal cell carcinoma (RCC) cell lines was confirmed in vitro. The synergistic effects of cabozantinib and EGFR-specific CAR-NK-92 cells were investigated in vitro and in vivo. Our results showed that the CAR-NK-92 cells lyse RCC cells in an EGFR-specific manner. Treatment with cabozantinib could increase EGFR and decrease PD-L1 membrane surface expression in RCC cells and enhance the killing ability of CAR-NK-92 cells against the RCC cells in vitro. Furthermore, the CAR-NK-92 cells show synergistic therapeutic efficacy with cabozantinib against human RCC xenograft models. Our results provided the basis for combination with chemotherapy as a novel strategy for enhancing the therapeutic efficacy of CAR-modified immune effector cells for solid tumors.
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id doaj-art-18b2f7c32a3f406798981f1c7ab6428d
institution Kabale University
issn 2314-8861
2314-7156
language English
publishDate 2017-01-01
publisher Wiley
record_format Article
series Journal of Immunology Research
spelling doaj-art-18b2f7c32a3f406798981f1c7ab6428d2025-02-03T05:57:12ZengWileyJournal of Immunology Research2314-88612314-71562017-01-01201710.1155/2017/69159126915912Synergistic Effects of Cabozantinib and EGFR-Specific CAR-NK-92 Cells in Renal Cell CarcinomaQing Zhang0Kang Tian1Jinjing Xu2Haixu Zhang3Liantao Li4Qiang Fu5Dafei Chai6Huizhong Li7Junnian Zheng8Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, ChinaCancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, ChinaCancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, ChinaCancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, ChinaCancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, ChinaDepartment of Immunology, Binzhou Medical University, Yantai, Shandong 264003, ChinaCancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, ChinaCancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, ChinaCancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, ChinaThe chimeric antigen receptor-modified immune effector cell (CAR-T and CAR-NK) therapies are newly developed adoptive treatments of cancers. However, their therapeutic efficacy against solid tumors is limited. Combining CAR-T or CAR-NK cells with chemotherapeutic drugs to treat solid tumor may be a promising strategy. We developed an epidermal growth factor- (EGFR-) specific third-generation CAR. NK-92 cells were modified with the CAR by lentivirus infection. The specific killing ability of the CAR-modified NK-92 cells (CAR-NK-92) against renal cell carcinoma (RCC) cell lines was confirmed in vitro. The synergistic effects of cabozantinib and EGFR-specific CAR-NK-92 cells were investigated in vitro and in vivo. Our results showed that the CAR-NK-92 cells lyse RCC cells in an EGFR-specific manner. Treatment with cabozantinib could increase EGFR and decrease PD-L1 membrane surface expression in RCC cells and enhance the killing ability of CAR-NK-92 cells against the RCC cells in vitro. Furthermore, the CAR-NK-92 cells show synergistic therapeutic efficacy with cabozantinib against human RCC xenograft models. Our results provided the basis for combination with chemotherapy as a novel strategy for enhancing the therapeutic efficacy of CAR-modified immune effector cells for solid tumors.http://dx.doi.org/10.1155/2017/6915912
spellingShingle Qing Zhang
Kang Tian
Jinjing Xu
Haixu Zhang
Liantao Li
Qiang Fu
Dafei Chai
Huizhong Li
Junnian Zheng
Synergistic Effects of Cabozantinib and EGFR-Specific CAR-NK-92 Cells in Renal Cell Carcinoma
Journal of Immunology Research
title Synergistic Effects of Cabozantinib and EGFR-Specific CAR-NK-92 Cells in Renal Cell Carcinoma
title_full Synergistic Effects of Cabozantinib and EGFR-Specific CAR-NK-92 Cells in Renal Cell Carcinoma
title_fullStr Synergistic Effects of Cabozantinib and EGFR-Specific CAR-NK-92 Cells in Renal Cell Carcinoma
title_full_unstemmed Synergistic Effects of Cabozantinib and EGFR-Specific CAR-NK-92 Cells in Renal Cell Carcinoma
title_short Synergistic Effects of Cabozantinib and EGFR-Specific CAR-NK-92 Cells in Renal Cell Carcinoma
title_sort synergistic effects of cabozantinib and egfr specific car nk 92 cells in renal cell carcinoma
url http://dx.doi.org/10.1155/2017/6915912
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