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[Shenghua decoction reversed methotrexate-induced interferon-gamma immunosuppression]
1Key Laboratory for Tumor Immunity and Traditional Chinese Drug Immunity, Institute of Basic Medicine, Shandong Academy of Medical Science, Jinan.
Summary
Shenghua Decoction reversed methotrexate (MTX) induced inhibition of interferon-gamma (IFN-gamma). This traditional Chinese medicine promoted IFN-gamma expression and Th1 differentiation, potentially impacting feto-maternal immunological rejection.
Area of Science:
- Immunology
- Pharmacology
- Reproductive Biology
Background:
- Methotrexate (MTX) is a common drug with teratogenic effects.
- MTX can induce feto-maternal immunological rejection by inhibiting interferon-gamma (IFN-gamma).
- Shenghua Decoction is a traditional Chinese medicine with potential immunomodulatory properties.
Purpose of the Study:
- To investigate the effect of Shenghua Decoction in reversing MTX-induced IFN-gamma inhibition.
- To evaluate the impact of Shenghua Decoction on feto-maternal immunological rejection in a mouse model.
Main Methods:
- Pregnant Balb/C mice were treated with Shenghua Decoction, MTX, or both.
- Feto-maternal rejection was assessed by counting live and dead fetuses.
- Flow cytometry and RT-PCR were used to analyze IFN-gamma+ cells and mRNA expression in spleen lymphocytes.
Main Results:
- Shenghua Decoction alone increased dead fetuses and IFN-gamma expression.
- MTX significantly increased dead fetuses and decreased IFN-gamma+ cells and mRNA expression.
- Combined treatment with MTX and Shenghua Decoction further increased dead fetuses and significantly upregulated IFN-gamma+ cells and mRNA expression compared to MTX alone.
Conclusions:
- Shenghua Decoction reverses MTX-induced IFN-gamma inhibition.
- The mechanism involves promoting IFN-gamma+ Th1 subpopulation differentiation and upregulating IFN-gamma expression.
- This action promotes feto-maternal immunological rejection.
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