[Tanreqing injection promotes the immune function of mice with Lewis lung carcinoma after chemotherapy].

Abstract

OBJECTIVE:

To investigate the effect of Tanreqing injection on immune function of mice with Lewis lung carcinoma treated by chemotherapy and discuss the immunoregulatory function of this herb.

METHODS:

All mouse models with Lewis lung carcinoma were randomly divided to four groups: model control group, Tanreqing injection group, chemotherapy group and chemotherapy combined with Tanreqing injection group (8 rats in each group). Other 8 normal mice served as a normal control group. After treatment, peripheral blood was collected from the mice of all groups before they were sacrificed. Tumor tissue, femur, thymus and spleen were obtained to perform the following experiments. Tumor mass and volume were first observed. The apoptosis levels of tumor cells and the ratios of CD3⁺T lymphocyte and CD3⁻NK1.1⁺ cells in the infiltrating lymphocytes in the tumor tissues were analyzed by flow cytometry. Thymus indexes (TI) were counted, and the structure of thymus was observed using HE staining. Cytotoxicity of spleen cytotoxic T cells (CTL) were investigated by MTT assay. The number of lymphocytes in the periphery blood and the nucleated cells in femur were also detected, and the expression levels of interferon-γ (IFN-γ) and tumor necrosis factor-α (TNF-α) mRNA in the tumor tissues were studied by reverse transcription PCR.

RESULTS:

After chemotherapy, TI, the number of the nucleated cells in femur and lymphocytes in peripheral blood of chemotherapy combined with Tanreqing injection group were obviously higher than those in the chemotherapy group. The ratios of CD3⁺T lymphocytes and CD3⁻NK1.1⁺ cells in the infiltrating lymphocytes in the tumor tissues of chemotherapy combined with Tanreqing injection group were also significantly higher than those in the chemotherapy group. Besides, compared with chemotherapy group, cytotoxicity of CTL in chemotherapy combined with Tanreqing injection group was improved notably. Meanwhile, the expression levels of IFN-γ and TNF-α mRNA in tumor tissues of chemotherapy combined with Tanreqing injection group were dramatically higher than those in chemotherapy group.

CONCLUSION:

Tanreqing injection has certain protective effects on damaged immune function of body with lung carcinoma induced by chemotherapy, and also improves the anti-tumor immune function of the body.

• Authors: Ming Ma, Lianmei Zhao, Xingxiao Yang, Lihua Liu, Jie Zhang, Baoen Shan
• Journal: Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology (Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi) Vol. 31 Issue 3 Pg. 297-301 (Mar 2015) ISSN: 1007-8738 [Print] China
• PMID: 25744830 (Publication Type: English Abstract, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Drugs, Chinese Herbal
• Tumor Necrosis Factor-alpha
• tanreqing
• Interferon-gamma

Topics

• Animals
• Apoptosis (drug effects)
• Carcinoma, Lewis Lung (drug therapy, genetics, immunology, physiopathology)
• Disease Models, Animal
• Drugs, Chinese Herbal (administration & dosage)
• Female
• Interferon-gamma (genetics, immunology)
• Lung Neoplasms (drug therapy, genetics, immunology, physiopathology)
• Male
• Mice
• Mice, Inbred C57BL
• Spleen (drug effects, immunology)
• T-Lymphocytes (cytology, drug effects, immunology)
• T-Lymphocytes, Cytotoxic (cytology, drug effects, immunology)
• Tumor Necrosis Factor-alpha (genetics, immunology)