Marsdenia tenacissima enhances immune response of tumor infiltrating T lymphocytes to colorectal cancer

IntroductionTumor-infiltrating T lymphocytes in the tumor microenvironment are critical factors influencing the prognosis and chemotherapy outcomes. As a Chinese herbal medicine, Marsdenia tenacissima extract (MTE) has been widely used to treat cancer in China. Its immunoregulatory effects on tumor-...

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Main Authors: Ben Yi, Shuai Zhang, Suying Yan, Yanfei Liu, Zhiqiang Feng, Tianhao Chu, Jun Liu, Wei Wang, Jun Xue, Chunze Zhang, Yijia Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-08-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2023.1238694/full
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author Ben Yi
Ben Yi
Shuai Zhang
Suying Yan
Suying Yan
Yanfei Liu
Yanfei Liu
Zhiqiang Feng
Zhiqiang Feng
Tianhao Chu
Tianhao Chu
Jun Liu
Wei Wang
Jun Xue
Chunze Zhang
Yijia Wang
author_facet Ben Yi
Ben Yi
Shuai Zhang
Suying Yan
Suying Yan
Yanfei Liu
Yanfei Liu
Zhiqiang Feng
Zhiqiang Feng
Tianhao Chu
Tianhao Chu
Jun Liu
Wei Wang
Jun Xue
Chunze Zhang
Yijia Wang
author_sort Ben Yi
collection DOAJ
description IntroductionTumor-infiltrating T lymphocytes in the tumor microenvironment are critical factors influencing the prognosis and chemotherapy outcomes. As a Chinese herbal medicine, Marsdenia tenacissima extract (MTE) has been widely used to treat cancer in China. Its immunoregulatory effects on tumor-associated macrophages is well known, but whether it regulates tumor-infiltrating T-cell functions remains unclear.MethodWe collected 17 tumor samples from MTE-administered colorectal cancer patients, 13 of which showed upregulation of CD3+/CD8+ tumor-infiltrating T cells. Further in vitro and in vivo experiments were performed to investigate the regulatory effects of MTE on tumor-infiltrating T cells and immune escape of tumors.ResultsUnder single and co-culture conditions, MTE inhibited TGF-β1 and PD-L1 expression in the colorectal cancer (CRC) cell lines HCT116 and LoVo. In Jurkat cells, MTE inhibited FOXP3 and IL-10 expression, increased IL-2 expression, but had no effect on PD-1 expression. These findings were confirmed in vitro using subcutaneous and colitis-associated CRC mouse models. MTE also increased the density of CD3+/CD8+ tumor-infiltrating T cells and exhibited considerable tumor-suppressive effects in these two tumor mouse models.ConclusionsOur findings suggested that MTE inhibits the immune escape of cancer cells, a precipitating factor increasing the immune response of T lymphocytes.
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spelling doaj.art-8a57bfbe48244c9fb233956cabc6c1962023-08-17T00:44:20ZengFrontiers Media S.A.Frontiers in Immunology1664-32242023-08-011410.3389/fimmu.2023.12386941238694Marsdenia tenacissima enhances immune response of tumor infiltrating T lymphocytes to colorectal cancerBen Yi0Ben Yi1Shuai Zhang2Suying Yan3Suying Yan4Yanfei Liu5Yanfei Liu6Zhiqiang Feng7Zhiqiang Feng8Tianhao Chu9Tianhao Chu10Jun Liu11Wei Wang12Jun Xue13Chunze Zhang14Yijia Wang15School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, ChinaDepartment of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, ChinaSchool of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, ChinaSchool of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, ChinaDepartment of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, ChinaSchool of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, ChinaDepartment of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, ChinaSchool of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, ChinaDepartment of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, ChinaSchool of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, ChinaDepartment of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, ChinaDepartment of Radiology, The Fourth Central Hospital Affiliated to Nankai University, Tianjin, ChinaTEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin, ChinaDepartment of General Surgery, The First Affiliated Hospital of Hebei North University, Zhangjiakou, ChinaDepartment of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, ChinaLaboratory of Oncologic Molecular Medicine, Tianjin Union Medical Center, Tianjin, ChinaIntroductionTumor-infiltrating T lymphocytes in the tumor microenvironment are critical factors influencing the prognosis and chemotherapy outcomes. As a Chinese herbal medicine, Marsdenia tenacissima extract (MTE) has been widely used to treat cancer in China. Its immunoregulatory effects on tumor-associated macrophages is well known, but whether it regulates tumor-infiltrating T-cell functions remains unclear.MethodWe collected 17 tumor samples from MTE-administered colorectal cancer patients, 13 of which showed upregulation of CD3+/CD8+ tumor-infiltrating T cells. Further in vitro and in vivo experiments were performed to investigate the regulatory effects of MTE on tumor-infiltrating T cells and immune escape of tumors.ResultsUnder single and co-culture conditions, MTE inhibited TGF-β1 and PD-L1 expression in the colorectal cancer (CRC) cell lines HCT116 and LoVo. In Jurkat cells, MTE inhibited FOXP3 and IL-10 expression, increased IL-2 expression, but had no effect on PD-1 expression. These findings were confirmed in vitro using subcutaneous and colitis-associated CRC mouse models. MTE also increased the density of CD3+/CD8+ tumor-infiltrating T cells and exhibited considerable tumor-suppressive effects in these two tumor mouse models.ConclusionsOur findings suggested that MTE inhibits the immune escape of cancer cells, a precipitating factor increasing the immune response of T lymphocytes.https://www.frontiersin.org/articles/10.3389/fimmu.2023.1238694/fullmarsdenia tenacissima extractiontumor microenvironmenttumor infiltrating T cellsCD8colorectal cancer
spellingShingle Ben Yi
Ben Yi
Shuai Zhang
Suying Yan
Suying Yan
Yanfei Liu
Yanfei Liu
Zhiqiang Feng
Zhiqiang Feng
Tianhao Chu
Tianhao Chu
Jun Liu
Wei Wang
Jun Xue
Chunze Zhang
Yijia Wang
Marsdenia tenacissima enhances immune response of tumor infiltrating T lymphocytes to colorectal cancer
Frontiers in Immunology
marsdenia tenacissima extraction
tumor microenvironment
tumor infiltrating T cells
CD8
colorectal cancer
title Marsdenia tenacissima enhances immune response of tumor infiltrating T lymphocytes to colorectal cancer
title_full Marsdenia tenacissima enhances immune response of tumor infiltrating T lymphocytes to colorectal cancer
title_fullStr Marsdenia tenacissima enhances immune response of tumor infiltrating T lymphocytes to colorectal cancer
title_full_unstemmed Marsdenia tenacissima enhances immune response of tumor infiltrating T lymphocytes to colorectal cancer
title_short Marsdenia tenacissima enhances immune response of tumor infiltrating T lymphocytes to colorectal cancer
title_sort marsdenia tenacissima enhances immune response of tumor infiltrating t lymphocytes to colorectal cancer
topic marsdenia tenacissima extraction
tumor microenvironment
tumor infiltrating T cells
CD8
colorectal cancer
url https://www.frontiersin.org/articles/10.3389/fimmu.2023.1238694/full
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