Overexpression of circ_0021739 in Peripheral Blood Mononuclear Cells in Women with Postmenopausal Osteoporosis Is Associated with Reduced Expression of microRNA-194-5p in Osteoclasts

被引:28
作者
Guan, Jiaxin [1 ]
Gan, Lu [1 ]
Jin, Di [1 ]
Wu, Xiaowei [1 ]
Cheng, Luyang [1 ]
Liu, Meiling [1 ]
Fan, Ying [1 ]
Zhou, Jing [2 ]
Zhang, Hanlu [1 ]
Zhang, Yina [1 ]
Zhou, Ping [1 ]
机构
[1] Harbin Med Univ, Dept Geriatr, Affiliated Hosp 2, Harbin, Heilongjiang, Peoples R China
[2] Harbin Med Univ, Examinat Ctr Bone Mineral Dens, Affiliated Hosp 2, Harbin, Heilongjiang, Peoples R China
来源
MEDICAL SCIENCE MONITOR | 2021年 / 27卷
关键词
Genetic Association Studies; Osteoporosis; Postmenopausal; RNA; Small Untranslated;
D O I
10.12659/MSM.929170
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
Background: Postmenopausal osteoporosis, a common disease among elderly women, is linked to estrogen deficiency, mechanical loading, and genotype. Circular RNAs (circRNAs) are formed through reverse splicing of the splice donor at the 3' end and the splice accepter at the 5' end in pre-mRNA and have been shown to be involved in the development of multiple diseases. Based on their high sequence conservation and stability, circRNAs may be useful biomarkers in different diseases. However, the roles of circRNAs in postmenopausal osteoporosis remain incompletely understood. Material/Methods: Fifty-three postmenopausal women were assigned to either the postmenopausal osteoporosis group (n=28) or the control group (n=25). Reverse-transcriptase quantitative polymerase chain reaction (RT-qPCR) analysis was performed to determine the differential expression of circRNAs between the 2 groups. Receiver-operating characteristic (ROC) curve analysis was conducted to evaluate the clinical diagnostic value of circRNA. Prediction of the binding sites between circRNA and miRNAs was conducted using miRanda and RNAhybrid. The function of the circRNA in osteoclastogenesis was determined by circRNA overexpression followed by tartrate-resistant acid phosphatase staining and RT-qPCR analysis. Results: Among 4 circRNAs previously identified by RNA-sequencing analysis as differentially expressed in patients with postmenopausal osteoporosis, only hsa_circ_0021739 showed a significant difference in expression between the groups and was downregulated in patients with postmenopausal osteoporosis. The hsa_circ_0021739 expression level was determined to be correlated with the lumbar vertebra, femur, and forearm T-scores. Overexpression of hsa_circ_0021739 decreased the level of hsa-miR-502-5p and inhibited the differentiation of osteoclasts. Conclusions: The circRNA hsa_circ_0021739 is a potential blood biomarker for postmenopausal osteoporosis. In addition, hsa-miR-502-5p is a likely target of hsa_circ_0021739, which acts to regulate the differentiation of osteoclasts.
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页数:9
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