中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (7): 1609-1615.doi: 10.12307/2025.577

• 骨髓干细胞 bone marrow stem cells •    下一篇

紫草素干预骨髓间充质干细胞改善老年小鼠股骨的微结构

胡雄科,刘少华,谭  谦,刘  昆,朱光辉   

  1. 中南大学湘雅医学院附属儿童医院(湖南省儿童医院)骨科,湖南省长沙市   410000
  • 收稿日期:2024-11-19 修回日期:2025-02-28 接受日期:2025-03-17 出版日期:2026-03-08 发布日期:2025-08-17
  • 通讯作者: 朱光辉,博士,主任医师,中南大学湘雅医学院附属儿童医院(湖南省儿童医院)骨科,湖南省长沙市 410000
  • 作者简介:胡雄科,男,1985年生,湖南省株洲市人,汉族,博士,主治医师,主要从事骨骼健康问题相关的临床和基础研究。
  • 基金资助:
    湖南省中医药科研项目(D2022083),项目负责人,胡雄科;湖南省儿童骨科学重点实验室(2023TP1019),项目负责人,朱光辉

Shikonin intervention with bone marrow mesenchymal stem cells improves microstructure of femur in aged mice

Hu Xiongke, Liu Shaohua, Tan Qian, Liu Kun, Zhu Guanghui   

  1. Department of Orthopedics, Children's Hospital Affiliated to Xiangya Medical College of Central South University (Hunan Children's Hospital), Changsha 410000, Hunan Province, China
  • Received:2024-11-19 Revised:2025-02-28 Accepted:2025-03-17 Online:2026-03-08 Published:2025-08-17
  • Contact: Zhu Guanghui, MD, Chief physician, Department of Orthopedics, Children's Hospital Affiliated to Xiangya Medical College of Central South University (Hunan Children's Hospital), Changsha 410000, Hunan Province, China
  • About author:Hu Xiongke, MD, Attending physician, Department of Orthopedics, Children's Hospital Affiliated to Xiangya Medical College of Central South University (Hunan Children's Hospital), Changsha 410000, Hunan Province, China
  • Supported by:
    Hunan Provincial Traditional Chinese Medicine Research Project, No. D2022083 (to HXK); Hunan Provincial Key Laboratory of Pediatric Orthopedics, No. 2023TP1019 (to ZGH) 

摘要:

文题释义:

紫草素:是一种萘醌化合物,从紫草根中提取而得,具有多种生物活性,如抗病毒、抗炎、抗菌和抗癌等。
丝裂原活化蛋白激酶家族:哺乳动物细胞中已经鉴定出14种不同的丝裂原活化蛋白激酶家族成员,并且发现其同源物存在于所有真核细胞中。在哺乳动物细胞中研究最多的级联是经典的MAPK、p38和JNK级联,在控制细胞生长和分化过程中起到重要作用。

摘要
背景:紫草素是一种从紫草中提取的紫色萘醌类色素,具有多种生物学活性,还具有一定的骨保护作用,但作用机制尚不明确。
目的:探讨紫草素促进骨髓间充质干细胞成骨分化的分子机制以及在治疗骨质疏松症中的潜在作用。
方法:①用不同浓度(0.1,0.2,0.4 µmol/L)紫草素干预骨髓间充质干细胞,采用CCK-8法检测细胞增殖情况;②用不同浓度(0.1,0.2,0.4 µmol/L)紫草素+成骨诱导液共同干预骨髓间充质干细胞7,14 d,分别进行碱性磷酸酶染色和茜素红染色;③用不同浓度(0.2,0.4 µmol/L)紫草素+成骨诱导液共同干预骨髓间充质干细胞48 h,提取RNA进行RT-PCR分析;④用0.2 µmol/L紫草素干预骨髓间充质干细胞30,60,120 min,通过蛋白质印迹检测MAPK信号通路中p-P38、p-ERK和p-JNK的表达;⑤18月龄C57BL/6小鼠给予紫草素干预2个月,取小鼠股骨进行Micro-CT扫描,取小鼠胫骨进行骨钙素免疫荧光检测。
结果与结论:①CCK-8检测显示紫草素可以促进骨髓间充质干细胞的增殖;②碱性磷酸酶染色和茜素红染色显示紫草素可以促进骨髓间充质干细胞向成骨细胞分化;③RT-PCR检测显示紫草素可以提高成骨相关基因骨钙蛋白、碱性磷酸酶、骨形态发生蛋白2和Runt相关转录因子2的mRNA表达水平;④蛋白质印迹检测显示紫草素可促进骨髓间充质干细胞MAPK信号通路中P38、ERK和JNK的磷酸化;⑤动物实验发现紫草素可以改善老年小鼠股骨的骨微结构,提高胫骨骨钙素的表达。结果表明:紫草素通过MAPK信号通路促进骨髓间充质干细胞成骨分化,改善骨质疏松小鼠的骨微结构。

https://orcid.org/0000-0002-1503-660X (胡雄科) 


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 骨髓间充质干细胞,  紫草素,  骨质疏松症,  MAPK信号通路,  成骨,  工程化干细胞 

Abstract: BACKGROUND: Shikonin, a purple naphthoquinone pigment extracted from Lithospermum erythrorhizon, exhibits diverse biological activities. Additionally, shikonin has been demonstrated to possess bone-protective effects. However, its action mechanisms remain unclear.
OBJECTIVE: To elucidate the molecular mechanisms by which shikonin promotes osteogenic differentiation in bone marrow mesenchymal stem cells, and its potential application in the treatment of osteoporosis.
METHODS: (1) Bone marrow mesenchymal stem cells were treated with varying concentrations (0.1, 0.2, and 0.4 µmol/L) of shikonin, and their proliferation was assessed using the Cell Counting Kit-8 (CCK-8) assay. (2) Bone marrow mesenchymal stem cells were co-treated with different concentrations (0.1, 0.2, and 0.4 µmol/L) of shikonin and osteogenic induction medium. After osteogenesis induction for 7 and 14 days, alkaline phosphatase staining and alizarin red staining were performed. (3) Bone marrow mesenchymal stem cells were treated with different concentrations (0.2 and 0.4 µmol/L) of shikonin for 48 hours. RNA was extracted for real-time PCR analysis. (4) Bone marrow mesenchymal stem cells were treated with 0.2 µmol/L shikonin for 30, 60, and 120 minutes. Expression levels of p-P38, p-ERK, and p-JNK in the MAPK signaling pathway were detected by western blot assay. (5) Eighteen-month-old C57BL/6 mice were treated with shikonin for two months, followed by micro-CT scanning of rat femurs. The tibiae of mice were taken for osteocalcin immunofluorescence detection.
RESULTS AND CONCLUSION: (1) CCK-8 assay indicated that shikonin promoted the proliferation of bone marrow mesenchymal stem cells. (2) Alkaline phosphatase staining and alizarin red staining suggested that shikonin enhanced osteogenic differentiation of bone marrow mesenchymal stem cells. (3) RT-PCR results showed increased mRNA levels of osteogenic gene markers osteocalcin, alkaline phosphatase, bone morphogenetic protein 2, and Runt-related transcription factor 2. (4) Western blot assay revealed that shikonin induced phosphorylation of P38, ERK, and JNK in the MAPK signaling pathway of bone marrow mesenchymal stem cells. (5) Animal experiment findings indicate that shikonin can improve the bone microstructure of the femur of aged mice and increase the expression of osteocalcin in the tibia. The results show that shikonin promotes the osteogenic differentiation of bone marrow mesenchymal stem cells through the MAPK signaling pathway and improves the bone microstructure of osteoporotic mice.


Key words: bone marrow mesenchymal stem cell,   shikonin,   osteoporosis,   MAPK signaling pathway,   osteogenesis,   engineered stem cell

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