Volume 136, Issue 3 e70008
ORIGINAL ARTICLE

Tetrahydroxy Stilbene Glycoside Reduces Abeta Deposition by Modulating Microglia Activation and via TREM2/PI3K/AKT Pathway in APP/PS1 Mice

Ming Li

Ming Li

Department of Anesthesiology, Beijing Tongren Hospital, Capital Medical University, Beijing, China

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Qihan Song

Qihan Song

Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

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Shanshan Jie

Shanshan Jie

Institute of Basic Theory of Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China

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Chenchen Wang

Chenchen Wang

Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

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Can Zhang

Can Zhang

Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

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Kexin Chi

Kexin Chi

Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

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Yan Gao

Corresponding Author

Yan Gao

Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

Correspondence:

Yan Gao ([email protected])

Tianzuo Li ([email protected])

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Tianzuo Li

Corresponding Author

Tianzuo Li

Department of Anesthesiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China

Correspondence:

Yan Gao ([email protected])

Tianzuo Li ([email protected])

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First published: 13 February 2025

Ming Li and Qihan Song authors are the first authors.

Yan Gao and Tianzuo Li contributed equally to this work.

BCPT recognizes the potential of natural product studies in the identification of new therapies but wishes to emphasize that findings based on uncharacterized mixtures of compounds are preliminary in nature and serve primarily as hypothesis generating to form the basis for more elaborate investigations.

Funding: This work was supported by the National Natural Science Foundation of China (No. 82271206, 82204645) and the Fund of Beijing Shijitan Hospital, Capital Medical University (2022-C02).

ABSTRACT

Tetrahydroxy stilbene glycoside (TSG), which is the primary active substance of Chinese herbal medicine called Polygonum multiflorum, has been acknowledged to alleviate Alzheimer's disease (AD)-induced learning disorder in the transgene mice. Because the microglia activation is really important during the AD progression, herein, we determined the effects of TSG on AD neuropathology, microglia polarization and its underlying mechanism. We used APP/PS1 mice along with immunohistochemistry and immunofluorescence techniques to evaluate the function of TSG as 60, 120 and 180 mg/kg on Aβ deposition, neuronal loss and microglia polarization induced by AD. Additionally, we assessed the effects of TSG on TREM2 signalling using both molecular docking and Western blot analysis. TSG was found to promote neuronal survival and decrease Aβ deposition in APP/PS1 mice. Moreover, TSG reduced microglia M1 polarization and modulated the TREM2/PI3K/AKT signalling pathways. TSG could reduce neuronal impairment by mediating the microglia polarization by TREM2/PI3K/AKT signalling pathway in APP/PS1 mice and is a latent pharmacological research direction for the therapy in the patients with AD.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

Data sharing not applicable to this article as no datasets were generated or analysed during the current study.

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