中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (2): 375-383.doi: 10.12307/2025.899

• 纳米生物材料 nanobiomaterials • 上一篇    下一篇

二氧化铈纳米粒调控M1巨噬细胞影响成纤维细胞共培养体系的炎症因子表达

谢培森1,关振鹏2,魏贤杰3,张克石2,康清源1,肖文韬1,郭晓帅1   

  1. 1新疆医科大学第二附属医院,新疆维吾尔自治区乌鲁木齐市   830000;2北京大学首钢医院,北京市  100144;3清华大学附属北京清华长庚医院骨科与运动医学中心,北京市   102218
  • 收稿日期:2024-10-17 接受日期:2024-11-19 出版日期:2026-01-18 发布日期:2025-06-17
  • 通讯作者: 关振鹏,博士,主任医师,教授,北京大学首钢医院,北京市 100144 共同通讯作者:张克石,博士,主治医师,北京大学首钢医院,北京市 100144
  • 作者简介:谢培森,男,1998年生,河北省邯郸市人,汉族,在读硕士,主要从事生物材料和膝关节疾病的外科诊疗与发病机制的研究。 共同第一作者:魏贤杰,男,1998年生,山东省牟平县人,汉族,在读博士,主要从事膝关节疾病的外科诊疗与发病机制研究。
  • 基金资助:
    国家自然科学基金青年科学基金资助项目(82102531),项目负责人:张克石

Cerium dioxide nanoparticles regulate expression of inflammatory factors in M1 macrophages and affect fibroblast co-culture system

Xie Peisen1, Guan Zhenpeng2, Wei Xianjie3, Zhang Keshi2, Kang Qingyuan1, Xiao Wentao1, Guo Xiaoshuai1   

  1. 1Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China; 2Shougang Hospital, Peking University, Beijing 100144, China; 3Department of Orthopedics and Sports Medicine, Beijing Tsinghua Chang Gung Memorial Hospital, Tsinghua University, Beijing 102218, China
  • Received:2024-10-17 Accepted:2024-11-19 Online:2026-01-18 Published:2025-06-17
  • Contact: Guan Zhenpeng, MD, Chief physician, Professor, Shougang Hospital, Peking University, Beijing 100144, China Zhang Keshi, MD, Attending physician, Shougang Hospital, Peking University, Beijing 100144, China
  • About author:Xie Peisen, Master candidate, Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China Wei Xianjie, Doctoral candidate, Department of Orthopedics and Sports Medicine, Beijing Tsinghua Chang Gung Memorial Hospital, Tsinghua University, Beijing 102218, China
  • Supported by:
    Youth Science Foundation Project of National Natural Science Foundation of China, No. 82102531 (to ZKS)

摘要:

文题释义:

二氧化铈纳米粒(Cerium Oxide Nanoparticles,CeO2 NPs):二氧化铈是一种具有萤石结构的稀土氧化物,二氧化铈纳米粒是颗粒尺寸在纳米量级的二氧化铈,由于具备独特的富含氧空位、Ce价态互变的结构性质,使其具备良好的催化活性,并被广泛应用于生物医学领域,在诊断、治疗和/或管理疾病方面发挥越来越重要的作用。
巨噬细胞极化:巨噬细胞是单核细胞在不同微环境中进行晚期分化,按表型和作用效果可分为经典活化型巨噬细胞(M1型)和替代活化型巨噬细胞(M2型)。M1型巨噬细胞具有促炎作用,M2型巨噬细胞具有抗炎和组织修复作用,两种表型的巨噬细胞与各种因子共同作用调节微生物感染和肿瘤免疫,参与免疫调节和组织修复过程,在维持微环境稳态发挥重要作用。

背景:巨噬细胞极化对类风湿关节炎等慢性炎症性关节病具有关键作用。二氧化铈纳米粒(Cerium oxide nanoparticles,CeO2 NPs)在调节组织炎症微环境等生物医疗方面有广泛应用。
目的:探究CeO2NPs对巨噬细胞极化和炎症因子表达的作用,及对巨噬细胞和成纤维细胞的共培养体系炎症调控作用。
方法:①分散CeO2 NPs,采用透射电子显微镜进行形态学观察。②对人白血病单核细胞(THP-1)诱导分化建立类风湿关节炎M1型巨噬细胞促炎细胞模型。将细胞分为M0组(未分化状态的巨噬细胞)、M1组(巨噬细胞造模成功)、CeO2 NPs处理组(在M1组基础上加入CeO2NPs处理)、地塞米松对照组(在M1组基础上加入地塞米松处理),孵育48 h。用 RT-qPCR、Western blot、流式细胞术检测CeO2 NPs对M1巨噬细胞炎性因子(内源性一氧化氮合酶、CD86、CD80)的表达和M1巨噬细胞表型(CD80、CD206)的影响。③建立巨噬细胞和成纤维细胞共培养体系,CeO2 NPs作用于上层巨噬细胞。观察CeO2 NPs对共培养体系中成纤维细胞的炎症因子(白细胞介素6、肿瘤坏死因子α 、环氧化酶2、内源性一氧化氮合酶)在mRNA和蛋白质水平表达的调控。
结果与结论:①透射电子显微镜显示CeO2 NPs直径在(19.5±2.0) nm。②与M0组相比,M1组内源性一氧化氮合酶和CD86的mRNA,内源性一氧化氮合酶和CD80的蛋白表达上调;与M1组相比,CeO2 NPs处理组内源性一氧化氮合酶和CD86的mRNA、内源性一氧化氮合酶和CD80的蛋白表达下调;流式细胞术显示20 nm CeO2 NPs下调M1巨噬细胞数量。③与M1组相比,20 nm CeO2 NPs下调共培养体系HFL1细胞炎症因子(肿瘤坏死因子α、白细胞介素6、环氧化酶2、内源性一氧化氮合酶)的mRNA和蛋白表达。④结果表明,20 nm CeO2 NPs能通过抑制M1巨噬细胞促炎因子表达,缓解共培养体系炎症,为治疗类风湿关节炎等炎症性疾病提供新思路。

https://orcid.org/0009-0002-6352-7590 (谢培森);https://orcid.org/0000-0001-9632-877X (魏贤杰) 
中国组织工程研究杂志出版内容重点:生物材料;骨生物材料;口腔生物材料;纳米材料;缓释材料;材料相容性;组织工程

关键词: CeO2 NPs, 巨噬细胞极化, 类风湿关节炎, 滑膜炎, Transwell 共培养, 工程化微环境

Abstract: BACKGROUND: Macrophage polarization plays a key role in chronic inflammatory joint diseases such as rheumatoid arthritis. Cerium dioxide (CeO2) nanoparticles have a wide range of biomedical applications such as modulating the local inflammatory microenvironment of tissues.
OBJECTIVE: To investigate the role of CeO2 nanoparticles on macrophage polarization and inflammatory factor expression, as well as inflammatory modulation in a co-culture system of macrophages and fibroblasts. 
METHODS: (1) CeO2 nanoparticles were dispersed and observed morphologically by transmission electron microscopy. (2) Human leukemia monocytes (THP-1) were induced to differentiate and establish the M1 macrophage pro-inflammatory cell model of rheumatoid arthritis. The cells were divided into M0 group (undifferentiated macrophages), M1 group (successful macrophage modeling), CeO2 nanoparticle treatment group (M1 group with CeO2 nanoparticle treatment), and dexamethasone control group (M1 group with dexamethasone treatment) and incubated for 48 hours. The effects of CeO2 nanoparticles on the expression of inflammatory factors (endogenous nitric oxide synthase, CD86, CD80) in M1 macrophages and M1 macrophage phenotype (CD80, CD206) were detected by RT-qPCR, western blot assay, and flow cytometry. (3) A co-culture system of macrophages and fibroblasts was established, and CeO2 nanoparticles acted on the upper macrophages. The regulation of CeO2 nanoparticles on the expression of inflammatory factors (interleukin-6, tumor necrosis factor-α, cyclooxygenase-2, and endogenous nitric oxide synthase) of fibroblasts in the co-culture system was observed at the mRNA and protein levels. 
RESULTS AND CONCLUSION: (1) Transmission electron microscopy showed that the diameter of CeO2 nanoparticles was (19.5±2.0) nm. (2) Compared with the M0 group, the mRNA of endogenous nitric oxide synthase and CD86, and the protein expression of endogenous nitric oxide synthase and CD80 in the M1 group were upregulated. Compared with the M1 group, the mRNA expression of endogenous nitric oxide synthase and CD86, and the protein expression of endogenous nitric oxide synthase and CD80 in the CeO2 nanoparticle treatment group were downregulated. Flow cytometry showed that 20 nm CeO2 nanoparticles downregulated the number of M1 macrophages. (3) Compared with the M1 group, 20 nm CeO2 nanoparticles downregulated the mRNA and protein expression of inflammatory factors (tumor necrosis factor α, interleukin 6, cyclooxygenase 2, and endogenous nitric oxide synthase) in the co-culture system HFL1 cells. (4) The results showed that 20 nm CeO2 nanoparticles can alleviate inflammation in the co-culture system by inhibiting the expression of pro-inflammatory factors in M1 macrophages, providing a new idea for the treatment of inflammatory diseases such as rheumatoid arthritis.

Key words: CeO2 nanoparticle, macrophage polarization, rheumatoid arthritis, synovitis, Transwell co-culture, engineered microenvironment

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