中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (19): 4836-4842.doi: 10.12307/2026.395

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

衰老骨髓间充质干细胞通过半乳糖凝集素3促进多发性骨髓瘤细胞增殖

樊婷婷1,向苗苗1,袁小霜1,杨  姁2,杨  波2,田  婷1,陈晓旭2,唐东昕2,王飞清2,刘  洋2,李艳菊1,3   

  1. 1贵州医科大学,贵州省贵阳市  550004;2贵州中医药大学第一附属医院,贵州省贵阳市   550001;3贵州医科大学附属医院血液科,贵州省贵阳市   550004
  • 收稿日期:2025-06-11 接受日期:2025-10-22 出版日期:2026-07-08 发布日期:2026-02-13
  • 通讯作者: 李艳菊,博士,主任医师,贵州医科大学,贵州省贵阳市 550004;贵州医科大学附属医院血液科,贵州省贵阳市 550004; 共同通讯作者:刘洋,博士,教授,贵州中医药大学第一附属医院,贵州省贵阳市 550001
  • 作者简介:樊婷婷,女,1980年生,贵州省兴义市人,汉族,在职硕士,主要从事干细胞组织工程研究。
  • 基金资助:
    学科优秀后备人才项目(gyfyxkrc-2023-14),项目负责人:李艳菊;贵州省基础研究计划(自然科学类)重点项目(黔科合基础-ZK[2023]重点042),项目负责人:李艳菊;贵州中医药大学人才团队项目(GZYTD [2024] 003),项目负责人:刘洋

Senescent bone marrow mesenchymal stem cells promote multiple myeloma cell proliferation through galectins-3

Fan Tingting1, Xiang Miaomiao1, Yuan Xiaoshuang1, Yang Xu2, Yang Bo2, Tian Ting1, Chen Xiaoxu2, Tang Dongxin2, Wang Feiqing2, Liu Yang2, Li Yanju1, 3   

  1. 1Guizhou Medical University, Guiyang 550004, Guizhou Province, China; 2The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, Guizhou Province, China; 3Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • Received:2025-06-11 Accepted:2025-10-22 Online:2026-07-08 Published:2026-02-13
  • Contact: Li Yanju, PhD, Chief physician, Guizhou Medical University, Guiyang 550004, Guizhou Province, China; Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, China; Liu Yang, MD, Professor, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, Guizhou Province, China
  • About author:Fan Tingting, MS, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • Supported by:
    The Subject Excellent Reserve Talent Project, No. gyfyxkrc-2023-14 (to LYJ); the Key Project of Guizhou Province Basic Research Program (Natural Science), No. [2023] 042 (to LYJ); Talent Team Program of Guizhou University of Traditional Chinese Medicine, No. GZYTD [2024] 003 (to LY)

摘要:

文题释义:

衰老骨髓间充质干细胞:具有分化为成骨细胞和成脂肪细胞的潜能,且有衰老分泌相关表型的特征。
衰老骨髓间充质干细胞条件培养液:衰老骨髓间充质干细胞会释放很多具有生物活性的细胞因子。收集衰老骨髓间充质干细胞培养基上清液,通过离心和过滤,得到具有活性成分的培养液,称为衰老骨髓间充质干细胞条件培养液。


摘要

背景:研究发现,多发性骨髓瘤微环境具有诱导间充质干细胞成衰老表型的功能,而衰老骨髓间充质干细胞对多发性骨髓瘤细胞影响的研究鲜有报道。
目的:探讨衰老骨髓间充质干细胞通过旁分泌半乳糖凝集素3对多发性骨髓瘤细胞增殖的影响。
方法:取健康供者骨髓血,通过Ficoll密度梯度离心法和贴壁纯化法提取骨髓间充质干细胞。取第3代骨髓间充质干细胞,采用200 μmol/L过氧化氢溶液诱导2 h,再用L-DMEM完全培养基培养24 h,构建衰老骨髓间充质干细胞模型,通过β-半乳糖苷酶染色及衰老基因P21表达进行鉴定,RT-qPCR检测衰老骨髓间充质干细胞中半乳糖凝集素3的表达。收集衰老骨髓间充质干细胞上清液并通过离心浓缩制备衰老骨髓间充质干细胞条件培养基,用其培养多发性骨髓瘤细胞株U266 24 h,CCK-8检测U266细胞增殖情况,流式细胞仪检测U266细胞凋亡情况,RT-qPCR及Western blot检测U266细胞中BCL-2蛋白及mRNA表达。收集多发性骨髓瘤患者和健康人的骨髓,通过ELISA方法检测半乳糖凝集素3水平。

结果与结论:①过氧化氢诱导后,β-半乳糖苷酶染色阳性细胞明显增多,P21和半乳糖凝集素3 mRNA表达上调(P < 0.01);②与对照组相比,衰老骨髓间充质干细胞条件培养基培养U266细胞24 h后,细胞增殖水平升高(P < 0.05),凋亡率降低(P < 0.05),BCL-2蛋白及mRNA表达水平增加(P < 0.05);③多发性骨髓瘤患者骨髓半乳糖凝集素3水平较健康人明显增加(P < 0.05)。结果表明:衰老骨髓间充质干细胞可能通过旁分泌半乳糖凝集素3,上调BCL-2表达水平,促进多发性骨髓瘤细胞的增殖。

https://orcid.org/0009-0009-1804-2288 (樊婷婷)


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: 衰老, 骨髓间充质干细胞, 多发性骨髓瘤, 半乳糖凝集素3, 旁分泌, 骨髓微环境, 凋亡, 增殖

Abstract: BACKGROUND: Studies showed that multiple myeloma microenvironment has the function of inducing mesenchymal stem cells to become senescent phenotype, while the effect of senescent bone marrow mesenchymal stem cells on multiple myeloma cells is rarely reported.
OBJECTIVE: To investigate the effect of senescent bone marrow mesenchymal stem cells on the proliferation of multiple myeloma cells through paracrine galectin-3.
METHODS: Bone marrow blood was collected from healthy donors, and bone marrow mesenchymal stem cells were extracted by Ficoll density gradient centrifugation and adherent purification. The third-generation bone marrow mesenchymal stem cells were taken and induced with 200 µmol/L hydrogen peroxide solution for 2 hours. After the treatment was completed, they were replaced with L-DMEM complete medium for 24 hours of culture to construct the senescent bone marrow mesenchymal stem cell model. β-Galactosylase staining and senescence gene P21 were used for identification. Meanwhile, the expression of galectin-3 in aging bone marrow mesenchymal stem cells was detected by RT-qPCR. The supernatant of senescent bone marrow mesenchymal stem cells was collected and the conditioned medium of senescent bone marrow mesenchymal stem cells was prepared by centrifugal concentration. After culturing the multiple myeloma cell line U266 for 24 hours with it, the proliferation of U266 cells was detected by CCK-8 assay. The apoptosis of U266 cells was detected by flow cytometry. The expression levels of BCL-2 protein and mRNA in U266 cells were detected by RT-qPCR and western blot assay. Bone marrow blood was collected from patients with multiple myeloma and healthy individuals. The level of galectin-3 was detected by ELISA. 
RESULTS AND CONCLUSION: (1) After hydrogen peroxide induction, the number of cells positive for β-galactosidase staining increased significantly, and P21 and galectin-3 mRNA expression levels were upregulated (P < 0.01). (2) Compared with the control group, 24 hours of culture of U266 cells with conditioned medium from senescent bone marrow mesenchymal stem cells increased the level of cell proliferation (P < 0.05), decreased the apoptosis rate (P < 0.05), and rose the expression levels of BCL-2 protein and mRNA (P < 0.05). (3) Galectin-3 levels in the bone marrow of patients with multiple myeloma were significantly higher than those in healthy controls (P < 0.05). These results suggest that senescent bone marrow mesenchymal stem cells may promote the proliferation of multiple myeloma cells by paracrine galectin-3, which in turn upregulates BCL-2 expression.  

Key words: senescent, bone marrow mesenchymal stem cell, multiple myeloma, galectin-3, paracrine, bone marrow microenvironment, apoptosis, proliferation

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