Modified Maimendong Decoction Inhibits Lung Cancer Metastasis by Up-Regulating Levels of NK and CD8+ T Cells in Peripheral Blood and Tumor Microenvironment
10.3971/j.issn.1000-8578.2025.24.0678
- VernacularTitle:加味麦门冬汤通过上调外周血和肿瘤微环境中NK和CD8+ T细胞水平抑制肺癌转移
- Author:
Zhipeng ZHANG
1
;
Jianhui TIAN
2
,
3
;
Zujun QUE
1
;
Ziqi CHEN
2
,
4
;
Bin LUO
3
;
Shihui LIU
1
Author Information
1. Institute of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine (TCM), Shanghai 200071, China.
2. Institute of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine (TCM), Shanghai 200071, China
3. Clinical Oncology Center, Shanghai Municipal Hospital of TCM, Shanghai University of TCM, Shanghai 200071, China.
4. Laboratory Center, Shanghai Municipal Hospital of TCM, Shanghai University of TCM, Shanghai 200071, China.
- Publication Type:BASICRESEARCH
- Keywords:
Lung cancer metastasis;
Modified maimendong decoction;
NK cells;
CD8+ T cells;
Deficiency of vital qi and hidden toxin
- From:
Cancer Research on Prevention and Treatment
2025;52(6):466-473
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the mechanism of modified maimendong decoction (MMD) in inhibiting lung cancer metastasis from the perspective of immune regulation. Methods CTC-TJH-01 and LLC cells were intervened with different concentrations of modified maimendong decoction. The cell proliferation was detected with a CCK-8 kit, apoptosis was detected with an Annexin V-FITC/PI kit, and cell migration was detected through Transwell assays. A lung metastasis model was established through the tail vein injection of LLC cells into C57BL/6 mice, and body weight change and lung tumor metastasis in the mice were evaluated after continuous gavage intervention with MMD. HE staining, immunohistochemistry, and immunofluorescence were employed to observe the histomorphology, Ki-67 protein level, and NK and T cell levels of metastatic lesions. The levels of NK and T cells in the peripheral blood of mice were detected throughflow cytometry. Results MMD had no significant inhibitory effect on the proliferation, apoptosis, and migration of CTC-TJH-01 and LLC cells in vitro. In mice, MMD could significantly inhibit the lung metastasis of LLC cells, increase the proportion of NK and CD8+ T cells in peripheral blood and tumor microenvironment (P<0.05), and reduce the expression of Ki-67 protein in metastatic tumor tissues (P<0.05). Conclusion MMD may inhibit the growth of metastatic tumors by upregulating the expression levels of NK and CD8+ T cells in peripheral blood to promote the elimination of circulating tumor cells, and regulating the infiltration of NK and CD8+ T cells in the immune microenvironment of metastatic tumors, then play an antimetastatic role in lung cancer.
