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400014 重庆,重庆医科大学附属儿童医院内分泌科,儿童发育疾病研究教育部重点实验室,儿童发育重大疾病国家国际科技合作基地, 儿科学重庆市重点实验室
[ 朱岷,E-mail: zhumin323@hotmail.com ZHU Min, E-mail: zhumin323@hotmail.com
收稿:2017-09-07,
修回:2017-10-24,
纸质出版:2018-02-15
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许珂, 徐雪姣, 宋萃, 等. 软骨细胞SHOX基因过/低表达的差异miRNA筛选与验证[J]. 第三军医大学学报, 2018,40(3):211-215.
Ke XU, Xuejiao XU, Cui SONG, et al. Screening and verification of differential miRNAs in chondrocytes with over-expression and low expression of SHOX[J]. Journal of Third Military Medical University, 2018, 40(3): 211-215.
许珂, 徐雪姣, 宋萃, 等. 软骨细胞SHOX基因过/低表达的差异miRNA筛选与验证[J]. 第三军医大学学报, 2018,40(3):211-215. DOI: 10.16016/j.1000-5404.201709050.
Ke XU, Xuejiao XU, Cui SONG, et al. Screening and verification of differential miRNAs in chondrocytes with over-expression and low expression of SHOX[J]. Journal of Third Military Medical University, 2018, 40(3): 211-215. DOI: 10.16016/j.1000-5404.201709050.
目的
2
建立软骨细胞(HC-α)SHOX基因过/低表达模型,筛选与未处理组差异表达miRNA,并予以验证。
方法
2
通过慢病毒过/低表达SHOX基因,用miRNA芯片筛选差异表达的miRNA。
结果
2
SHOX过表达组与对照组有425条差异表达的miRNA;SHOX低表达组与对照组有379条差异表达的miRNA;按照表达水平差异相反的标准筛选差异miRNA,其中6条miRNA在处理组中表达水平差异相反。实时荧光定量PCR对6条miRNA(miR-126、miR-192、miR-370、miR-432、miR-3162、miR-4745)进行验证,miR-126在过表达组明显上调(
P
<
0.05),在低表达组明显下调(
P
<
0.05)。
结论
2
miR-126参与SHOX介导的软骨细胞凋亡过程。
Objective
2
To establish 2 cell models with overexpression and low expression of short stature homeo-box-containing gene (SHOX) in chondrocytes and screen the differentially expressed miRNAs in the cells.
Methods
2
Lentiviral vectors were used to establish a cell model of SHOX overexpression and a cell model of SHOX gene interference in HC-α cells. Microarray chip technique was used to screen the differentially expressed miRNAs in the 2 cell models compared with HC-α cells without genetic modification (NC group).
Results
2
Compared with the NC group
425 and 379 differentially expressed miRNAs
were identified in HC-α cells with SHOX overexpression and in cells with SHOX interference
respectively. Six miRNAs were found to have opposite changes between the 2 cell models
and verification of the 6 miRNAs (miR-126
miR-192
miR-370
miR-432
miR-3162
and miR-4745) with real-time PCR confirmed that miR-126 was significantly up-regulated (
P
<
0.05) in cells with SHOX overexpression and was significantly down-regulated (
P
<
0.05) in cells with SHOX interference.
Conclusion
2
miR-126 is involved in SHOX-mediated chondrocyte apoptosis.
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