二甲双胍
氧化应激
泼尼松龙
成骨细胞
间充质干细胞
炎症
活力测定
医学
药理学
活性氧
内分泌学
内科学
糖尿病
化学
细胞
体外
生物化学
病理
作者
Mehmet Sertac Cekuc,Yasemin Sude Ergul,Alexa K. Pius,Makarcyzk Meagan,Issei Shinohara,Masatoshi Murayama,Yosuke Susuki,Chao Ma,Mayu Morita,Simon Kwoon‐Ho Chow,Bruce A. Bunnell,Hang Lin,Qi Gao,Stuart B. Goodman
摘要
Background: Corticosteroids provide well-established therapeutic benefits; however, they are also accompanied by adverse effects on bone. Metformin is a widely used medication for managing type 2 diabetes mellitus. Recent studies have highlighted additional therapeutic benefits of metformin, particularly concerning bone health and oxidative stress. Objective: This research investigates the effects of prednisolone on cellular metabolic functions and bone formation using a 3D in vitro model. Then, we demonstrate the potential therapeutic effects of metformin on oxidative stress and the formation of calcified matrix due to corticosteroids. Methods: Human mesenchymal stem cells (MSCs) and macrophages were cultured in a 3D GelMA scaffold and stimulated with prednisolone, with and without metformin. The adverse effects of prednisolone and metformin's therapeutic effect(s) were assessed by analyzing cell viability, osteogenesis markers, bone mineralization, and inflammatory markers. Oxidative stress was measured by evaluating reactive oxygen species (ROS) levels and ATP production. Results: Prednisolone exhibited cytotoxic effects, reducing the viability of MSCs and macrophages. Lower osteogenesis potential was also detected in the MSC group. Metformin positively affected cell functions, including enhanced osteoblast activity and increased bone mineralization. Furthermore, metformin effectively reduced oxidative stress, as evidenced by decreased ROS levels and increased ATP production. These findings indicate that metformin protects against oxidative damage, thus supporting osteogenesis. Conclusion: Metformin exhibits promising therapeutic potential beyond its role in diabetes management. The capacity to alleviate oxidative stress highlights the potential of metformin in supporting bone formation in inflammatory environments. Keywords: corticosteroid, osteogenesis, inflammation, bone, metformin
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