Cited by 115Extracellular vesicles in diseaseCancer-related molecular mechanisms researchCircular RNAs in diseases

Long non-coding RNA PVT1 encapsulated in bone marrow mesenchymal stem cell-derived exosomes promotes osteosarcoma growth and metastasis by stabilizing ERG and sponging miR-183-5p

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Zhao, Wei, Qin, Pan, Zhang, Da, Cui, Xichun, Gao, Jing, Yu, Zhenzhu, Chai, Yuting, Wang, Jiaxiang +1 more·2019·Aging

Abstract

Exosomes secreted by bone marrow mesenchymal stem cells (BMSCs) promote osteosarcoma cell proliferation and migration, while the underlying mechanism remains unknown. Since the long non-coding RNA PVT1 has been reported to be upregulated in osteosarcoma cells and contributes to its growth and metastasis, we aim to investigate whether BMSC-derived exosomes promote osteosarcoma growth and metastasis via transporting PVT1 into osteosarcoma cells. The PVT1 expression in BMSC-derived exosomes was markedly higher than that in osteosarcoma cell-derived exosomes. The co-culturing of BMSC-derived exosomes and osteosarcoma cells (Saos-2, MG-63, and MNNG/HOS cell lines) significantly raised PVT1 expression of osteosarcoma cells. The direct binding between PVT1 and the oncogenic protein ERG was confirmed using RNA immunoprecipitation and RNA pull-down assays, and the transported PVT1 promotes osteosarcoma cell proliferation and migration via inhibiting degradation and ubiquitination of ERG. PVT1 also increased ERG expression through sponging miR-183-5p. In summary, our findings indicated that BMSC-derived exosomes encapsulate PVTl and transport it into osteosarcoma cells, and the transported PVT1 promotes tumor growth and metastasis by inhibiting ubiquitination and promoting expression of ERG in osteosarcoma cells. These data provide a novel insight into the mechanism of BMSC-derived exosomes in affecting osteosarcoma progression.

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Authors
Zhao, W., Qin, P., Zhang, D., Cui, X., Gao, J., Yu, Z., Chai, Y., Wang, J., & Li, J.
Affiliations
First Affiliated Hospital of Zhengzhou University (CN)
Corresponding author
Li, Juan
Venue
Aging
Published
2019-11-07
Volume
11
Issue
21
Pages
9581-9596
ISSN
1945-4589 (ISSN-L)
OpenAlex
W2984884798
Cited by
115
References
42
Citations by year
2026: 5 · 2025: 14 · 2024: 18 · 2023: 16 · 2022: 26 · 2021: 19 · 2020: 17
FWCI
5.13
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Aging (publishedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Circular RNAs in diseases
Keywords
bone marrow mesenchymal stem cells, exosomes, osteosarcoma, ERG, miR-183-5p, tumor growth, metastasis, protein stabilization, ubiquitination, tumor microenvironment, cell proliferation, cell migration
MeSH terms
Transcriptional Regulator ERG, Animals, Bone Neoplasms, Humans, Mice, Inbred BALB C, Mice, Nude, Neoplasm Metastasis, Neoplasm Transplantation, Osteosarcoma, MicroRNAs, Cell Line, Tumor, Exosomes, Primary Cell Culture, RNA, Long Noncoding

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