中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (11): 1648-1655.doi: 10.12307/2022.346

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

虾青素对叔丁基过氧化氢诱导软骨细胞损伤的保护作用

朱春晖1,2,张  宜3,宋黄鹤2,梁文卫2   

  1. 1南京医科大学附属常州第二人民医院,江苏省常州市   213000;2南京医科大学第一附属医院,江苏省南京市   210029;3南京中医药大学附属常州市武进中医医院,江苏省常州市   213000
  • 收稿日期:2021-04-12 修回日期:2021-04-15 接受日期:2021-06-10 出版日期:2022-04-18 发布日期:2021-12-11
  • 通讯作者: 梁文卫,博士,副主任医师,南京医科大学第一附属医院关节外科,江苏省南京市 210029
  • 作者简介:朱春晖,男,1989年生,江苏省盱眙县人,汉族,南京医科大学第一附属医院在读博士, 主要从事骨与关节损伤修复学、骨与软骨组织工程研究。
  • 基金资助:
    国家自然科学基金项目(81601897),负责人:梁文卫

Protective effect of astaxanthin on tert-butyl hydrogen peroxide-induced chondrocyte damage

Zhu Chunhui1, 2, Zhang Yi3, Song Huanghe2, Liang Wenwei2   

  1. 1The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China; 2The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China; 3Wujin Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Changzhou 213000, Jiangsu Province, China
  • Received:2021-04-12 Revised:2021-04-15 Accepted:2021-06-10 Online:2022-04-18 Published:2021-12-11
  • Contact: Liang Wenwei, MD, Associate chief physician, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
  • About author:Zhu Chunhui, MD candidate, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China; The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81601897 (to LWW)

摘要:

文题释义:
虾青素:又名虾黄素、虾黄质,是一种含氧的类胡萝卜素,具有显著的抗炎、抗氧化、抗骨质疏松等多种生物活性。
环状RNA(circRNA):一类缺少5’帽子和3’多聚A尾的非编码RNA,以反向剪接的方式形成一个共价闭合的环状架构。环状RNA分子富含microRNA结合位点,在细胞中起到微小RNA海绵的作用,可解除微小RNA对其靶基因的抑制作用。

背景:关节软骨损伤是一种临床上常见的骨科疾病,探索其损伤修复机制有助于改善临床治疗策略。虾青素对关节软骨具有保护作用,但相关分子机制尚不明确。
目的: 评价虾青素对叔丁基过氧化氢诱导的C28/I2细胞损伤的保护作用,并探讨环状RNA circHP1BP3如何参与该作用。
方法:采用叔丁基过氧化氢诱导软骨细胞C28/I2损伤,通过细胞活力、凋亡、炎症反应、氧化应激和胞外基质降解情况评价虾青素对叔丁基过氧化氢诱导C28/I2细胞损伤的保护作用。通过实时荧光定量PCR检测叔丁基过氧化氢和虾青素处理对环状RNA表达的影响,并对差异表达的环状RNA进行特性评价;通过转染过表达质粒或小干扰RNA,研究circHP1BP3在叔丁基过氧化氢诱导的C28/I2细胞损伤和虾青素介导的细胞损伤保护中的作用。
结果与结论:①叔丁基过氧化氢可降低C28/I2细胞活性,增加凋亡率、炎症反应、氧化应激和胞外基质降解,诱导细胞损伤;虾青素处理对叔丁基过氧化氢诱导的C28/I2细胞损伤起保护作用;②叔丁基过氧化氢可下调C28/I2细胞中circHP1BP3的表达,虾青素处理可显著上调叔丁基过氧化氢诱导的细胞中circHP1BP3的表达;③过表达circHP1BP3可降低叔丁基过氧化氢诱导的C28/I2细胞损伤;④沉默circHP1BP3可抑制虾青素对叔丁基过氧化氢诱导的C28/I2细胞损伤的保护作用;⑤结果表明,虾青素可能通过影响circHP1BP3对叔丁基过氧化氢诱导的C28/I2细胞损伤起保护作用。
缩略语:叔丁基过氧化氢:tert-butyl hydrogen peroxide,tBHP

https://orcid.org/0000-0002-8837-0588 (朱春晖)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 虾青素, circHP1BP3, 软骨细胞, 细胞损伤, 环状RNA, 叔丁基过氧化氢, 氧化应激

Abstract: BACKGROUND: Cartilage damage is a common orthopedic disease. Studies on the mechanism of cartilage repair are important for the improvement of therapeutic strategies in clinical practice. Astaxanthin has a protective effect on cartilage damage; however, the related mechanism is not yet elucidated. 
OBJECTIVE: To study the protective effect of astaxanthin against tert-butyl hydrogen peroxide-induced damage to C28/I2 cells and to explore how circHP1BP3 is involved in this protect effect.
METHODS: Tert-butyl hydrogen peroxide was used to induce damage to C28/I2 cells. The protective effect of astaxanthin was evaluated by cell viability, apoptosis, inflammation, oxidative stress, and degradation of extracellular matrix. RT-qPCR was used to explore the expression of circRNAs. The role of circHP1BP3 in the protective effect of astaxanthin was investigated by the use of circHP1BP3-overexpression plasmid or small-interference RNAs.
RESULTS AND CONCLUSION: Tert-butyl hydrogen peroxide induced damage of C28/I2 cells by decreasing cell viability, and increasing cell apoptosis, inflammatory effect, oxidative stress, and degradation of the extracellular matrix. Astaxanthin protected C28/I2 cells from tBHP-induced cell damage. Tert-butyl hydrogen peroxide decreased the expression of circHP1BP3 in C28/I2 cells, while astaxanthin increased the expression of circHP1BP3 in tBHP-treated cells. circHP1BP3-overexpression recovered C28/I2 cells from tBHP-induced cell damage. circHP1BP3 silencing inhibited the protective effect of astaxanthin on tBHP-induced C28/I2 cell damage. To conclude, astaxanthin can protect C28/I2 chondrocytes from tBHP-induced cell damage via circHP1BP3.

Key words: astaxanthin, circHP1BP3, chondrocyte, cell damage, circRNA, tert-butyl hydrogen peroxide, oxidative stress

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