Synergy of Polydopamine Nanovaccine and Endostar Alginate Hydrogel for Improving Antitumor Immune Responses Against Colon Tumor
Ying Yang,1 Ning Wang,2 XinXin Tian,1 XiaoLi Wang,1 Jing Yang,1 XiGang Leng,1 HaiLing Zhang1 1Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomaterials, Tianjin, People’s Republic of China; 2Key Laboratory of C...
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Dove Medical Press
2022-10-01
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author | Yang Y Wang N Tian XX Wang X Yang J Leng XG Zhang HL |
author_facet | Yang Y Wang N Tian XX Wang X Yang J Leng XG Zhang HL |
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description | Ying Yang,1 Ning Wang,2 XinXin Tian,1 XiaoLi Wang,1 Jing Yang,1 XiGang Leng,1 HaiLing Zhang1 1Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomaterials, Tianjin, People’s Republic of China; 2Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, People’s Republic of ChinaCorrespondence: HaiLing Zhang, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomaterials, Tianjin, People’s Republic of China, Tel +86 22 8789 1191, Fax +86 22 8789 0153, Email zhanghl@bme.pumc.edu.cnBackground: Tumor immunotherapy, a novel type of therapeutic treatment, has a wide range of applications with potentially prolonged benefits. However, current immunotherapy has a low overall response rate in treating a variety of tumors. Combination of immunotherapy with other therapies can improve the therapeutic response rates. The purpose of this work was to explore the potential of anti-angiogenic treatment in combination with tumor cell lysate loaded polydopamine nanoparticle vaccine as a therapeutic strategy for colon tumor.Methods: We grafted tumor cell lysate onto polydopamine nanoparticles as nano-vaccine (TCLN) and fabricated alginate hydrogel loaded with Endostar (EH), then detected characteristics of EH and TCLN. We also estimated the cytotoxicity of EH/TCLN in vitro. In the tumor-bearing mouse model, we evaluated the antitumor effect of EH/TCLN treatment, and developed the animal survival study. After performing the EH/TCLN treatment, we also analyzed T cells and DCs using flow cytometry, and determined T cell responses and tumor microenvironmental cytokines. At last, we assessed the effect of the EH/TCLN treatment on anti-angiogenesis further.Results: When applied in combination with TCLN in MC-38 tumor-bearing mice, EH/TCLN significantly suppressed tumor growth with more than half of the mice showing tumor regression. In addition, EH/TCLN treatment resulted in noticeable changes in the tumor microenvironment. As compared with the control group, EH/TCLN treatment led to significantly reduced tumor angiogenesis and expression of tumor microenvironment-related cytokines (TMCs), increased proportion of CD8+ T cells in the spleen, lymph node and tumor, elevated activity of cytotoxic T lymphocytes (CTLs) and tumor cell apoptosis.Conclusion: The present study demonstrated that the EH/TCLN treatment effectively created a favorable immune microenvironment for the induction of antitumor immunity and improved antitumor immune responses.Graphical Abstract: Keywords: alginate, polydopamine, Endostar, colon tumor, angiogenesis, immunotherapy |
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spelling | doaj.art-cd23df9b72eb4ffc8a474645a8f7cad22022-12-22T03:29:28ZengDove Medical PressInternational Journal of Nanomedicine1178-20132022-10-01Volume 174791480578891Synergy of Polydopamine Nanovaccine and Endostar Alginate Hydrogel for Improving Antitumor Immune Responses Against Colon TumorYang YWang NTian XXWang XYang JLeng XGZhang HLYing Yang,1 Ning Wang,2 XinXin Tian,1 XiaoLi Wang,1 Jing Yang,1 XiGang Leng,1 HaiLing Zhang1 1Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomaterials, Tianjin, People’s Republic of China; 2Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, People’s Republic of ChinaCorrespondence: HaiLing Zhang, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomaterials, Tianjin, People’s Republic of China, Tel +86 22 8789 1191, Fax +86 22 8789 0153, Email zhanghl@bme.pumc.edu.cnBackground: Tumor immunotherapy, a novel type of therapeutic treatment, has a wide range of applications with potentially prolonged benefits. However, current immunotherapy has a low overall response rate in treating a variety of tumors. Combination of immunotherapy with other therapies can improve the therapeutic response rates. The purpose of this work was to explore the potential of anti-angiogenic treatment in combination with tumor cell lysate loaded polydopamine nanoparticle vaccine as a therapeutic strategy for colon tumor.Methods: We grafted tumor cell lysate onto polydopamine nanoparticles as nano-vaccine (TCLN) and fabricated alginate hydrogel loaded with Endostar (EH), then detected characteristics of EH and TCLN. We also estimated the cytotoxicity of EH/TCLN in vitro. In the tumor-bearing mouse model, we evaluated the antitumor effect of EH/TCLN treatment, and developed the animal survival study. After performing the EH/TCLN treatment, we also analyzed T cells and DCs using flow cytometry, and determined T cell responses and tumor microenvironmental cytokines. At last, we assessed the effect of the EH/TCLN treatment on anti-angiogenesis further.Results: When applied in combination with TCLN in MC-38 tumor-bearing mice, EH/TCLN significantly suppressed tumor growth with more than half of the mice showing tumor regression. In addition, EH/TCLN treatment resulted in noticeable changes in the tumor microenvironment. As compared with the control group, EH/TCLN treatment led to significantly reduced tumor angiogenesis and expression of tumor microenvironment-related cytokines (TMCs), increased proportion of CD8+ T cells in the spleen, lymph node and tumor, elevated activity of cytotoxic T lymphocytes (CTLs) and tumor cell apoptosis.Conclusion: The present study demonstrated that the EH/TCLN treatment effectively created a favorable immune microenvironment for the induction of antitumor immunity and improved antitumor immune responses.Graphical Abstract: Keywords: alginate, polydopamine, Endostar, colon tumor, angiogenesis, immunotherapyhttps://www.dovepress.com/synergy-of-polydopamine-nanovaccine-and-endostar-alginate-hydrogel-for-peer-reviewed-fulltext-article-IJNalginatepolydopamineendostarcolon tumorangiogenesisimmunotherapy |
spellingShingle | Yang Y Wang N Tian XX Wang X Yang J Leng XG Zhang HL Synergy of Polydopamine Nanovaccine and Endostar Alginate Hydrogel for Improving Antitumor Immune Responses Against Colon Tumor International Journal of Nanomedicine alginate polydopamine endostar colon tumor angiogenesis immunotherapy |
title | Synergy of Polydopamine Nanovaccine and Endostar Alginate Hydrogel for Improving Antitumor Immune Responses Against Colon Tumor |
title_full | Synergy of Polydopamine Nanovaccine and Endostar Alginate Hydrogel for Improving Antitumor Immune Responses Against Colon Tumor |
title_fullStr | Synergy of Polydopamine Nanovaccine and Endostar Alginate Hydrogel for Improving Antitumor Immune Responses Against Colon Tumor |
title_full_unstemmed | Synergy of Polydopamine Nanovaccine and Endostar Alginate Hydrogel for Improving Antitumor Immune Responses Against Colon Tumor |
title_short | Synergy of Polydopamine Nanovaccine and Endostar Alginate Hydrogel for Improving Antitumor Immune Responses Against Colon Tumor |
title_sort | synergy of polydopamine nanovaccine and endostar alginate hydrogel for improving antitumor immune responses against colon tumor |
topic | alginate polydopamine endostar colon tumor angiogenesis immunotherapy |
url | https://www.dovepress.com/synergy-of-polydopamine-nanovaccine-and-endostar-alginate-hydrogel-for-peer-reviewed-fulltext-article-IJN |
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