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論文題目
Preclinical Study of Plasmodium Immunotherapy Combined with Radiotherapy for Solid Tumors
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作者
Tao, Zhu, Wenting Ding, Zhipeng Cheng, Yinfang Feng, Zhongkui Kang, Runmin Qiu, Siting Zhao, Wen Hu, Fang Zhou, Donghai Wu, Ziyuan Duan, Li Qin, and Xiaoping Chen.
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論文出處
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刊物名稱
Cells
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年卷期頁
2022, 11, 22, 3600
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聯(lián)系作者
Xiaoping Chen
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影響因子
7.666
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摘要
Immune checkpoint blockade therapy (ICB) is ineffective against cold tumors and, although it is effective against some hot tumors, drug resistance can occur. We have developed a Plasmodium immunotherapy (PI) that can overcome these shortcomings. However, the specific killing effect of PI on tumor cells is relatively weak. Radiotherapy (RT) is known to have strong specific lethality to tumor cells. Therefore, we hypothesized that PI combined with RT could produce synergistic antitumor effects. We tested our hypothesis using orthotopic and subcutaneous models of mouse glioma (GL261, a cold tumor) and a subcutaneous model of mouse non-small cell lung cancer (NSCLC, LLC, a hot tumor). Our results showed that, compared with each monotherapy, the combination therapy more significantly inhibited tumor growth and extended the life span of tumor-bearing mice. More importantly, the combination therapy could cure approximately 70 percent of glioma. By analyzing the immune profile of the tumor tissues, we found that the combination therapy was more effective in upregulating the perforin-expressing effector CD8+ T cells and downregulating the myeloid-derived suppressor cells (MDSCs), and was thus more effective in the treatment of cancer. The clinical transformation of PI combined with RT in the treatment of solid tumors, especially glioma, is worthy of expectation.
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英文摘要
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外單位作者單位
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