Syringin Protects High Glucose-induced BMSC Injury, Cell Senescence, and Osteoporosis by Inhibiting JAK2/STAT3 Signaling

Overview

Journal J Appl Biomed

Specialties Biomedical Engineering
General Medicine

Date 2025 Mar 4

PMID 40033807

Authors

Yu-Cong Zou

Kai Gao

Bao-Tao Cao

Xiao-Li He

Wei Zheng

Xiao-Fei Wang

Yu-Fu Li

Feng Li

Hua-Jun Wang

Affiliations

Soon will be listed here.

Abstract

Background: Acanthopanax senticosus (Rupr. et Maxim.) is commonly used in Traditional Chinese Medicine. Syringin is a major ingredient of phenolic glycoside in Acanthopanax senticosus.

Objective: This study was performed to investigate whether Syringin could protect high glucose-induced bone marrow mesenchymal stem cells (BMSCs) injury, cell senescence, and osteoporosis by inhibiting JAK2/STAT3 signaling.

Methods: BMSCs isolated from both the tibia and femur of mice were induced for osteogenesis. The cell senescence was induced using the high glucose medium. The cells were treated with 10 and 100 μmol/l Syringin. Immunohistochemistry staining was performed to determine the β-galactosidase (SA-β-gal) levels in differentially treated BMSCs. MTT assay and flow cytometry analysis were also performed to assess cell viability and cell cycle. The level of ROS in cells with different treatment was measured by using flow cytometry with DCF-DA staining. Calcium deposition and mineralized matrices were detected with alizarin red and ALP staining, respectively. Osteogenesis related genes OCN, ALP, Runx2, and BMP-2 were detected by RT-PCR. Levels of senescence-related proteins including p53 and p21, as well as JAK2, p-JAK2, STAT3, and p-STAT3 were detected by Western blot analysis.

Results: Syringin treatment reversed the phenotypes of senescence caused by high glucose in BMSCs, including the arrest of G0/G1 cell cycle, enhanced SA-β-gal activity, and impaired cell growth. Syringin also decreased the elevated ROS production and the levels of p53, p21, and JAK2/STAT3 signaling activation. In addition, Syringin also enhanced the osteogenic potential determined by ARS and ALP staining, as well as increasing OCN, ALP, Runx2, and BMP-2 expressions.

Conclusion: Syringin protects high glucose-induced BMSC injury, cell senescence, and osteoporosis by inhibiting JAK2/STAT3 signaling.

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