中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (19): 3983-3991.doi: 10.12307/2025.510

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

长链非编码RNA KIAA0125对急性髓系白血病U937细胞增殖和凋亡的影响

胡华丽1,2,邓发滑1,2,刘远程2,王斯奇2,张静馨2,禄婷婷1,2,黄  海1,2,韦四喜1,2   

  1. 1贵州医科大学附属医院临床检验中心,贵州省贵阳市   550004;2贵州医科大学医学检验学院,贵州省贵阳市   550004
  • 收稿日期:2024-04-11 接受日期:2024-06-09 出版日期:2025-07-08 发布日期:2024-09-12
  • 通讯作者: 韦四喜,博士,博士生导师,主任技师,贵州医科大学附属医院临床检验中心,贵州省贵阳市 550004;贵州医科大学医学检验学院,贵州省贵阳市 550004
  • 作者简介:胡华丽,女,1999年生,贵州省黔西南州人,贵州医科大学临床检验诊断学在读硕士,主要从事血液肿瘤相关基础与临床研究。
  • 基金资助:
    国家自然科学基金项目(81960031,82260033,81660027),项目负责人:韦四喜;贵州省科技厅资助项目(20185779-70),项目负责人:韦四喜;贵州医科大学附属医院博士研究启动基金(gyfybsky-2021-29),项目负责人:禄婷婷;贵州医科大学附属医院国家自然科学基金区域基金培育项目(gyfynsfc-2021-48),项目负责人:禄婷婷

Effects of long non-coding RNA KIAA0125 on proliferation and apoptosis of acute myeloid leukemia U937 cells

Hu Huali1, 2, Deng Fahua1, 2, Liu Yuancheng2, Wang Siqi2, Zhang Jingxin2, Lu Tingting1, 2, Huang Hai1, 2, Wei Sixi1, 2   

  1. 1Clinical Laboratory Center of Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, China; 2School of Medical Laboratory, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • Received:2024-04-11 Accepted:2024-06-09 Online:2025-07-08 Published:2024-09-12
  • Contact: Wei Sixi, MD, Doctoral supervisor, Chief technician, Clinical Laboratory Center of Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, China; School of Medical Laboratory, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • About author:Hu Huali, Master candidate, Clinical Laboratory Center of Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, China; School of Medical Laboratory, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • Supported by:
    National Natural Science Foundation of China, No. 81960031, 82260033, 81660027 (to WSX); a grant from Guizhou Provincial Department of Science and Technology, No. 20185779-70 (to WSX); Doctoral Research Initiation Fund of Affiliated Hospital of Guizhou Medical University, No. gyfybsky-2021-29 (to LTT); National Natural Science Foundation Regional Fund Cultivation Project of Affiliated Hospital of Guizhou Medical University, No. gyfynsfc-2021-48 (to LTT)

摘要:

文题释义:

急性髓系白血病:是一种以造血干/祖细胞异常克隆扩增和分化停滞为特征的血液恶性肿瘤,主要表现为外周血及骨髓中原始或幼稚髓性细胞异常增生。
长链非编码RNA:是由RNA聚合酶Ⅱ或RNA聚合酶Ⅲ转录生成的一组长度超过200 nt但不编码蛋白质或编码蛋白质能力极低的RNA分子。
U937细胞:是由NilssonK实验室于1974年从一名37岁患有恶性组织细胞性淋巴瘤的白人男性胸水中分离出来的。该细胞在人混合淋巴细胞培养物上清、佛波酯、维生素D3、γ-干扰素、肿瘤坏死因子和维A酸的诱导下可以向终末单核细胞分化。 

摘要
背景:U937细胞可以作为急性髓系白血病细胞模型,用于研究急性髓系白血病的生物学特性、信号通路和治疗靶点。目前虽然已有研究报道长链非编码RNA KIAA0125在急性髓系白血病中呈高表达,但其在U937细胞中的生物学功能尚不清楚,在急性髓系白血病发生发展中的作用机制有待进一步阐明。
目的:探讨长链非编码RNA KIAA0125在急性髓系白血病患者外周血中的表达水平及对U937细胞增殖、凋亡的影响。
方法:RNA-seq分析急性髓系白血病患者骨髓单核细胞样本,筛选得到差异表达基因——长链非编码RNA KIAA0125,利用qRT-PCR检测长链非编码RNA KIAA0125在急性髓系白血病患者外周血中的表达进行验证,通过GEPIA数据库统计分析173例急性髓系白血病患者和70例健康人骨髓细胞中长链非编码RNA KIAA0125 mRNA的表达与预后的关系。随后使用重组慢病毒技术及CRISPR/Cas9-SAM技术分别构建敲低/过表达长链非编码RNA KIAA0125的U937细胞系,qRT-PCR检测长链非编码RNA KIAA0125敲低/过表达效率。接下来,使用CCK-8实验、流式细胞术及Western blot检测敲低/过表达长链非编码RNA KIAA0125对U937细胞增殖、凋亡的影响。最后,使用Western blot检测敲低/过表达长链非编码RNA KIAA0125对Wnt/β-catenin信号通路相关蛋白的影响。

结果与结论:①qRT-PCR结果显示长链非编码RNA KIAA0125在急性髓系白血病患者外周血中呈高表达,GEPIA数据库显示长链非编码RNA KIAA0125在急性髓系白血病患者骨髓细胞中呈高表达,高表达组具有更差的生存期;②敲低组长链非编码RNA KIAA0125的敲低效率为70%,成功构建了稳定敲低长链非编码RNA KIAA0125表达的U937细胞,过表达组长链非编码RNA KIAA0125的表达是Vector组的4倍,成功构建了稳定过表达长链非编码RNA KIAA0125的U937细胞;③敲低长链非编码RNA KIAA0125抑制U937细胞的增殖并促进其凋亡,过表达长链非编码RNA KIAA0125则促进U937细胞的增殖但对U937细胞的凋亡无显著影响;④敲低长链非编码RNA KIAA0125抑制Wnt/β-catenin信号通路活性,而过表达长链非编码RNA KIAA0125则激活Wnt/β-catenin信号通路。结果表明,长链非编码RNA KIAA0125在急性髓系白血病外周血中呈高表达,其可能通过调控Wnt/β-catenin信号通路影响U937细胞的增殖和凋亡,可能是急性髓系白血病的潜在预后标志物。

https://orcid.org/0009-0007-8466-120X (胡华丽) 


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: 急性髓系白血病, lncKIAA0125, Wnt/β-catenin, U937细胞, 增殖

Abstract: BACKGROUND: U937 cells can be used as a cell model for studying the biological characteristics, signaling pathways, and therapeutic targets of acute myeloid leukemia. Although it has been reported that long non-coding RNA KIAA0125 is highly expressed in acute myeloid leukemia, its biological function in U937 cells remains unclear, and its mechanism of action in the occurrence and development of acute myeloid leukemia needs to be further clarified. 
OBJECTIVE: To investigate the expression level of long non-coding RNA KIAA0125 in peripheral blood of patients with acute myeloid leukemia and its effect on the proliferation and apoptosis of U937 cells. 
METHODS: RNA-sequencing was used to analyze the bone marrow monocyte samples from acute myeloid leukemia patients, and the differentially expressed gene long non-coding RNA KIAA0125 was screened. The expression of long non-coding RNA KIAA0125 in peripheral blood of patients with acute myeloid leukemia was detected by qRT-PCR. The relationship between long non-coding RNA KIAA0125 mRNA expression and prognosis in bone marrow cells of 173 acute myeloid leukemia patients and 70 healthy people was statistically analyzed by GEPIA database. Subsequently, recombinant lentivirus technology and CRISPR/Cas9-SAM technology were used to construct U937 cell lines with knockdown/overexpression of long non-coding RNA KIAA0125. qRT-PCR was used to detect the knockdown/overexpression efficiency of long non-coding RNA KIAA0125. Next, CCK-8 assay, flow cytometry, and western blot assay were used to detect the effects of knockdown/overexpression of long non-coding RNA KIAA0125 on the proliferation and apoptosis of U937 cells. Finally, western blot assay was used to detect the effect of knockdown/overexpressed long non-coding RNA KIAA0125 on Wnt/β-catenin signaling pathway-related proteins. 
RESULTS AND CONCLUSION: (1) The results of qRT-PCR showed that long non-coding RNA KIAA0125 was highly expressed in peripheral blood of acute myeloid leukemia patients. The results of GEPIA database showed that long non-coding RNA KIAA0125 was highly expressed in bone marrow cells of acute myeloid leukemia patients, and the high expression group had worse overall survival. (2) The knockdown efficiency of long non-coding RNA KIAA0125 in knockdown group was 70%, and the U937 cells that stably down-regulated long non-coding RNA KIAA0125 expression were successfully constructed. The expression of long non-coding RNA KIAA0125 in overexpression group was four times that of vector group, and stable U937 cells were successfully constructed. (3) Knockdown of long non-coding RNA KIAA0125 inhibited the proliferation of U937 cells and promoted their apoptosis. Overexpression of long non-coding RNA KIAA0125 promoted the proliferation of U937 cells but had no significant effect on the apoptosis of U937 cells. (4) Knockdown of long non-coding RNA KIAA0125 inhibited the activity of Wnt/β-catenin signaling pathway, while overexpression of long non-coding RNA KIAA0125 activated Wnt/β-catenin signaling pathway. These results confirm that long non-coding RNA KIAA0125 is highly expressed in acute myeloid leukemia peripheral blood. Long non-coding RNA KIAA0125 may affect the proliferation and apoptosis of U937 cells by regulating the Wnt/β-catenin signaling pathway, and may be a potential prognostic marker for acute myeloid leukemia. 

Key words: acute myeloid leukemia, lncKIAA0125, Wnt/β-catenin, U937 cell, proliferation

中图分类号: