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已发表论文
优化的脂质纳米颗粒介导的 SOX5/SOX9 mRNA 共递送实现协同逆转衰老用于骨关节炎治疗
Authors Yu Y , Ji Z, Xu H, Ma M , Li S, Yin Z, Du Y, Li H, Liu S, Qian W
Received 1 June 2025
Accepted for publication 30 September 2025
Published 22 October 2025 Volume 2025:20 Pages 12783—12804
DOI https://doi.org/10.2147/IJN.S544168
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Dr Xing Zhang
Yang Yu,1,* Zhongyin Ji,1,* Hongjun Xu,1 Mingyang Ma,1 Shanni Li,1 Zhaojing Yin,2 Yiyang Du,2 Hui Li,3 Sen Liu,1 Wenwei Qian1
1Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, People’s Republic of China; 2School of Medicine, Tsinghua University, Beijing, 100084, People’s Republic of China; 3BiosynRNA Biotechnology Company, Beijing, 100190, People’s Republic of China
*These authors contributed equally to this work
Correspondence: Sen Liu, Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, People’s Republic of China, Email liusen@pumch.cn Wenwei Qian, Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, People’s Republic of China, Email qianww@pumch.cn
Background: Chondrocyte senescence significantly impairs extracellular matrix (ECM) synthesis and accelerates cartilage degradation, driving osteoarthritis (OA) progression. Although gene therapies targeting senescent chondrocytes are promising for OA, developing strategies that simultaneously rejuvenate cartilage function and precisely modulate the inflammatory microenvironment remains challenging.
Methods: We developed an optimized lipid nanoparticle (LNP)-based delivery platform for the efficient co-delivery of transcription factors SOX5 and SOX9 mRNAs into chondrocytes. The physicochemical properties and biosafety of the formulations were systematically characterized. Additionally, the therapeutic efficacy of these formulations was evaluated in senescent chondrocyte cultures and an ACLT-induced osteoarthritis (OA) rat model.
Results: The synergistic action of SOX5 and SOX9 markedly enhanced anabolic signaling, promoting synthesis of critical cartilage ECM components (type II collagen and aggrecan). The combination also reduced inflammation-mediated matrix degradation in vitro and in vivo. In a rat OA model, this optimized LNP-mediated co-delivery substantially improved cartilage regeneration, suppressed joint inflammation, and restored joint function compared to single-gene treatment or untreated controls.
Conclusion: This work provides an advanced, synergistic mRNA therapeutic approach employing optimized LNPs to alleviate chondrocyte senescence and stimulate cartilage regeneration, representing a promising strategy for OA intervention.
Keywords: osteoarthritis, articular cartilage, lipid nanoparticles, senescence, mRNA delivery
1Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, People’s Republic of China; 2School of Medicine, Tsinghua University, Beijing, 100084, People’s Republic of China; 3BiosynRNA Biotechnology Company, Beijing, 100190, People’s Republic of China
*These authors contributed equally to this work
Correspondence: Sen Liu, Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, People’s Republic of China, Email liusen@pumch.cn Wenwei Qian, Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, People’s Republic of China, Email qianww@pumch.cn
Background: Chondrocyte senescence significantly impairs extracellular matrix (ECM) synthesis and accelerates cartilage degradation, driving osteoarthritis (OA) progression. Although gene therapies targeting senescent chondrocytes are promising for OA, developing strategies that simultaneously rejuvenate cartilage function and precisely modulate the inflammatory microenvironment remains challenging.
Methods: We developed an optimized lipid nanoparticle (LNP)-based delivery platform for the efficient co-delivery of transcription factors SOX5 and SOX9 mRNAs into chondrocytes. The physicochemical properties and biosafety of the formulations were systematically characterized. Additionally, the therapeutic efficacy of these formulations was evaluated in senescent chondrocyte cultures and an ACLT-induced osteoarthritis (OA) rat model.
Results: The synergistic action of SOX5 and SOX9 markedly enhanced anabolic signaling, promoting synthesis of critical cartilage ECM components (type II collagen and aggrecan). The combination also reduced inflammation-mediated matrix degradation in vitro and in vivo. In a rat OA model, this optimized LNP-mediated co-delivery substantially improved cartilage regeneration, suppressed joint inflammation, and restored joint function compared to single-gene treatment or untreated controls.
Conclusion: This work provides an advanced, synergistic mRNA therapeutic approach employing optimized LNPs to alleviate chondrocyte senescence and stimulate cartilage regeneration, representing a promising strategy for OA intervention.
Keywords: osteoarthritis, articular cartilage, lipid nanoparticles, senescence, mRNA delivery