期刊
CELL DEATH & DISEASE
卷 11, 期 6, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41419-020-2689-4
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资金
- National Natural for Youths [81702670]
- National Natural Science Foundation of China [81672176, 81871783]
- Natural Science Foundation of Hunan Province, China [2018JJ2565]
- Fundamental Research Funds for the Central Universities of Central South University [2020zzts288]
- Scientific Research Project of Hunan Health Committee [20200357]
- Natural Science Foundation of Hunan Province for Youth, China [2019JJ50883]
Pain, physical dysfunction, and mental disorders caused by bone nonunion bring great burden to patients. Bone mesenchymal stem cells (BMSCs) isolated from bone nonunion patients with poor proliferation and osteogenic ability are compared with that from normal bone-healing patients. Long noncoding RNAs (lncRNAs) are a class of RNAs that are more than 200 nucleotides in length, lack an open-reading frame encoding a protein, and have little or no protein-coding function, and could regulate gene expression, which is involved in the regulation of important life activities, such as growth, development, aging, and death at epigenetic, transcriptional, and post-transcriptional levels. In this study, we intended to investigate the difference of lncRNA expression between patients with nonunion and normal fracture healing. Our result found that lncRNA ENST00000563492 was downregulated in bone nonunion tissues. LncRNA ENST00000563492 promotes osteogenic differentiation of BMSCs through upregulating the expression of CDH11. On the other hand, LncRNA ENST0000563492 could improve the osteogenesis-angiogenesis coupling process through enhancing the expression of VEGF during osteogenic differentiation of BMSCs. LncRNA ENST00000563492 functions as a ceRNA for miR-205-5p that was targeting CDH11 and VEGF. LncRNA ENST00000563492 could promote the osteogenesis of BMSCs in vivo. Our result indicated that lncRNA ENST00000563492 may be a new target for bone nonunion.
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