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논문 기본 정보

자료유형
학술저널
저자정보
Honglin Xu (Southern Medical University (Dongguan People"s Hospital)) Haifeng Miao (Southern Medical University (Dongguan People"s Hospital)) Guanghong Chen (Southern Medical University) Guoyong Zhang (Southern Medical University) Yue Hua (Southern Medical University) Yuting Wu (Southern Medical University) Tong Xu (Southern Medical University) Xin Han (Southern Medical University) Changlei Hu (Southern Medical University) Mingjie Pang (Southern Medical University) Leyi Tan (Southern Medical University) Bin Liu (Second Affiliated Hospital of Guangzhou Medical University) Yingchun Zhou (Southern Medical University (Dongguan People"s Hospital))
저널정보
고려인삼학회 Journal of Ginseng Research Journal of Ginseng Research Vol.47 No.6
발행연도
2023.11
수록면
743 - 754 (12page)

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Background: Myocardial fibrosis post-myocardial infarction (MI) can induce maladaptive cardiac remodeling as well as heart failure. Although 20(S)-ginsenoside Rg3 (Rg3) has been applied to cardiovascular diseases, its efficacy and specific molecular mechanism in myocardial fibrosis are largely unknown. Herein, we aimed to explore whether TGFBR1 signaling was involved in Rg3"s anti-fibrotic effect post-MI.
Methods: Left anterior descending (LAD) coronary artery ligation-induced MI mice and TGF-β1-stimulated primary cardiac fibroblasts (CFs) were adopted. Echocardiography, hematoxlin-eosin and Masson staining, Western-blot and immunohistochemistry, CCK8 and Edu were used to study the effects of Rg3 on myocardial fibrosis and TGFBR1 signaling. The combination mechanism of Rg3 and TGFBR1 was explored by surface plasmon resonance imaging (SPRi). Moreover, myocardial Tgfbr1-deficient mice and TGFBR1 adenovirus were adopted to confirm the pharmacological mechanism of Rg3.
Results: In vivo experiments, Rg3 ameliorated myocardial fibrosis and hypertrophy and enhanced cardiac function. Rg3-TGFBR1 had the 1.78 10<SUP>-7</SUP> M equilibrium dissociation constant based on SPRi analysis, and Rg3 inhibited the activation of TGFBR1/Smads signaling dose-dependently. Cardiac-specific Tgfbr1 knockdown abolished Rg3"s protection against myocardial fibrosis post-MI. In addition, Rg3 downregulated the TGF-b1-mediated CFs growth together with collagen production in vitro through TGFBR1 signaling. Moreover, TGFBR1 adenovirus partially blocked the inhibitory effect of Rg3.
Conclusion: Rg3 improves myocardial fibrosis and cardiac function through suppressing CFs proliferation along with collagen deposition by inactivation of TGFBR1 pathway.

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ABSTRACT
1. Introduction
2. Materials and methods
3. Results
4. Discussion
5. Conclusions
References

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