JAK2 inhibitor combined with DC-activated AFP-specific T-cells enhances tantitumor function in a Fas/FasL signal-independent pathway
Yang Liu,1 Yue-ru Wang,2 Guang-hui Ding,1 Ting-song Yang,1 Le Yao,1 Jie Hua,1 Zhi-gang He,1 Ming-ping Qian1 1Department of Hepatobiliary Surgery, Shanghai 10th People’s Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China; 2Department of Infectio...
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doaj-92e6d3c6f0ab4bb29bf57f7a83bedd052020-11-24T23:43:28ZengDove Medical PressOncoTargets and Therapy1178-69302016-07-012016Issue 14425443327979JAK2 inhibitor combined with DC-activated AFP-specific T-cells enhances tantitumor function in a Fas/FasL signal-independent pathwayLiu YWang YRDing GHYang TSYao LHua JHe ZGQian MPYang Liu,1 Yue-ru Wang,2 Guang-hui Ding,1 Ting-song Yang,1 Le Yao,1 Jie Hua,1 Zhi-gang He,1 Ming-ping Qian1 1Department of Hepatobiliary Surgery, Shanghai 10th People’s Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China; 2Department of Infection, Shanghai First People’s Hospital Affiliated to Jiaotong University, Shanghai, People’s Republic of China Objective: Combination therapy for cancer is more effective than using only standard chemo- or radiotherapy. Our previous results showed that dendritic cell-activated α-fetoprotein (AFP)-specific T-cells inhibit tumor in vitro and in vivo. In this study, we focused on antitumor function of CD8+ T-cells combined with or without JAK2 inhibitor. Methods: Proliferation and cell cycle were analyzed by CCK-8 and flow cytometry. Western blot was used to analyze the expression level of related protein and signaling pathway. Results: We demonstrated reduced viability and induction of apoptosis of tumor cells with combination treatment. Intriguingly, cell cycle was blocked at the G1 phase by using AFP-specific CD8+ T-cells combined with JAK2 inhibitor (AG490). Furthermore, an enhanced expression of BAX but no influence on Fas/FasL was detected from the tumor cells. Conclusion: These results indicate a Fas/FasL-independent pathway for cellular apoptosis in cancer therapies with the treatment of AFP-specific CD8+ T-cells combined with JAK2 inhibitor. Keywords: AFP-specific CD8+ T-cells, JAK2 inhibitor, Fas/FasL signal, antitumor, apoptosis https://www.dovepress.com/jak2-inhibitor-combined-with-dc-activated-afp-specific-t-cells-enhance-peer-reviewed-article-OTTAFP-specific CD8+ T cellsJAK2 inhibitorFas/FasL signalanti-tumorapoptosis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Liu Y Wang YR Ding GH Yang TS Yao L Hua J He ZG Qian MP |
spellingShingle |
Liu Y Wang YR Ding GH Yang TS Yao L Hua J He ZG Qian MP JAK2 inhibitor combined with DC-activated AFP-specific T-cells enhances tantitumor function in a Fas/FasL signal-independent pathway OncoTargets and Therapy AFP-specific CD8+ T cells JAK2 inhibitor Fas/FasL signal anti-tumor apoptosis |
author_facet |
Liu Y Wang YR Ding GH Yang TS Yao L Hua J He ZG Qian MP |
author_sort |
Liu Y |
title |
JAK2 inhibitor combined with DC-activated AFP-specific T-cells enhances tantitumor function in a Fas/FasL signal-independent pathway |
title_short |
JAK2 inhibitor combined with DC-activated AFP-specific T-cells enhances tantitumor function in a Fas/FasL signal-independent pathway |
title_full |
JAK2 inhibitor combined with DC-activated AFP-specific T-cells enhances tantitumor function in a Fas/FasL signal-independent pathway |
title_fullStr |
JAK2 inhibitor combined with DC-activated AFP-specific T-cells enhances tantitumor function in a Fas/FasL signal-independent pathway |
title_full_unstemmed |
JAK2 inhibitor combined with DC-activated AFP-specific T-cells enhances tantitumor function in a Fas/FasL signal-independent pathway |
title_sort |
jak2 inhibitor combined with dc-activated afp-specific t-cells enhances tantitumor function in a fas/fasl signal-independent pathway |
publisher |
Dove Medical Press |
series |
OncoTargets and Therapy |
issn |
1178-6930 |
publishDate |
2016-07-01 |
description |
Yang Liu,1 Yue-ru Wang,2 Guang-hui Ding,1 Ting-song Yang,1 Le Yao,1 Jie Hua,1 Zhi-gang He,1 Ming-ping Qian1 1Department of Hepatobiliary Surgery, Shanghai 10th People’s Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China; 2Department of Infection, Shanghai First People’s Hospital Affiliated to Jiaotong University, Shanghai, People’s Republic of China Objective: Combination therapy for cancer is more effective than using only standard chemo- or radiotherapy. Our previous results showed that dendritic cell-activated α-fetoprotein (AFP)-specific T-cells inhibit tumor in vitro and in vivo. In this study, we focused on antitumor function of CD8+ T-cells combined with or without JAK2 inhibitor. Methods: Proliferation and cell cycle were analyzed by CCK-8 and flow cytometry. Western blot was used to analyze the expression level of related protein and signaling pathway. Results: We demonstrated reduced viability and induction of apoptosis of tumor cells with combination treatment. Intriguingly, cell cycle was blocked at the G1 phase by using AFP-specific CD8+ T-cells combined with JAK2 inhibitor (AG490). Furthermore, an enhanced expression of BAX but no influence on Fas/FasL was detected from the tumor cells. Conclusion: These results indicate a Fas/FasL-independent pathway for cellular apoptosis in cancer therapies with the treatment of AFP-specific CD8+ T-cells combined with JAK2 inhibitor. Keywords: AFP-specific CD8+ T-cells, JAK2 inhibitor, Fas/FasL signal, antitumor, apoptosis |
topic |
AFP-specific CD8+ T cells JAK2 inhibitor Fas/FasL signal anti-tumor apoptosis |
url |
https://www.dovepress.com/jak2-inhibitor-combined-with-dc-activated-afp-specific-t-cells-enhance-peer-reviewed-article-OTT |
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