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Dong J, Gong Z, Bi H, Yang J, Wang B, Du K, Zhang C, Chen L. BMSC-derived exosomal miR-219-5p alleviates ferroptosis in neuronal cells caused by spinal cord injury via the UBE2Z/NRF2 pathway. Neuroscience 2024; 556:73-85. [PMID: 39084457 DOI: 10.1016/j.neuroscience.2024.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 06/05/2024] [Accepted: 06/15/2024] [Indexed: 08/02/2024]
Abstract
OBJECTIVE The aim of this study was to investigate the molecular mechanism of exosomal miR-219-5p derived from bone marrow mesenchymal stem cells (BMSCs) in the treatment of spinal cord injury (SCI). METHODS Basso Beattie Bresnahan (BBB) score and tissue staining were used to assess SCI and neuronal survival in rats. The contents of Fe2+, malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD) were detected by a kit. The expression levels of ubiquitin-conjugating enzyme E2 Z (UBE2Z), nuclear factor erythroid 2-related Factor 2 (NRF2) and ferroptosis-related proteins were detected by Western blotting. In addition, the ability of BMSC-derived exosomes to inhibit ferroptosis in neuronal cells in rats with SCI was validated by in vivo injection of ferroptosis inhibitors/inducers. RESULTS In this study, we found that miR-219-5p-rich BMSC-derived exosomes inhibited ferroptosis in SCI rats and that the alleviating effect of BMSC-Exos on SCI was achieved by inhibiting the ferroptosis signaling pathway and that NRF2 played a key role in this process. Our study confirmed that BMSC exosome-specific delivery of miR-219-5p can target UBE2Z to regulate its stability and that overexpression of UBE2Z reverses miR-219-5p regulation of NRF2. In addition, in vivo experiments showed that BMSC exosomes alleviated ferroptosis in neuronal SCI progression, and inhibiting the expression of miR-219-5p in BMSCs reduced the alleviating effect of exosomes on ferroptosis in neuronal cells and SCI. CONCLUSION miR-219-5p in BMSC-derived exosomes can repair the injured spinal cord. In addition, miR-219-5p alleviates ferroptosis in neuronal cells induced by SCI through the UBE2Z/NRF2 pathway.
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Affiliation(s)
- Junjie Dong
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - Zhiqiang Gong
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - Hangchuan Bi
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - Jin Yang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - Bing Wang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - Kaili Du
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - Chunqiang Zhang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - Lingqiang Chen
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China.
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Feng Y, Guo K, Jiang J, Lin S. Mesenchymal stem cell-derived exosomes as delivery vehicles for non-coding RNAs in lung diseases. Biomed Pharmacother 2024; 170:116008. [PMID: 38071800 DOI: 10.1016/j.biopha.2023.116008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 12/02/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024] Open
Abstract
The burden of lung diseases is gradually increasing with an increase in the average human life expectancy. Therefore, it is necessary to identify effective methods to treat lung diseases and reduce their social burden. Currently, an increasing number of studies focus on the role of mesenchymal stem cell-derived exosomes (MSC-Exos) as a cell-free therapy in lung diseases. They show great potential for application to lung diseases as a more stable and safer option than traditional cell therapies. MSC-Exos are rich in various substances, including proteins, nucleic acids, and DNA. Delivery of Non-coding RNAs (ncRNAs) enables MSC-Exos to communicate with target cells. MSC-Exos significantly inhibit inflammatory factors, reduce oxidative stress, promote normal lung cell proliferation, and reduce apoptosis by delivering ncRNAs. Moreover, MSC-Exos carrying specific ncRNAs affect the proliferation, invasion, and migration of lung cancer cells, thereby playing a role in managing lung cancer. The detailed mechanisms of MSC-Exos in the clinical treatment of lung disease were explored by developing standardized culture, isolation, purification, and administration strategies. In summary, MSC-Exo-based delivery methods have important application prospects for treating lung diseases.
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Affiliation(s)
- Yuqian Feng
- Hangzhou School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Kaibo Guo
- Department of Oncology, Hangzhou First People's Hospital, Hangzhou, Zhejiang 310003, China
| | - Jing Jiang
- The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Shengyou Lin
- Department of Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang 310006, China.
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Lan B, Dong X, Yang Q, Luo Y, Wen H, Chen Z, Chen H. Exosomal MicroRNAs: An Emerging Important Regulator in Acute Lung Injury. ACS OMEGA 2023; 8:35523-35537. [PMID: 37810708 PMCID: PMC10551937 DOI: 10.1021/acsomega.3c04955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/11/2023] [Indexed: 10/10/2023]
Abstract
Acute lung injury (ALI) is a clinically life-threatening form of respiratory failure with a mortality of 30%-40%. Acute respiratory distress syndrome is the aggravated form of ALI. Exosomes are extracellular lipid vesicles ubiquitous in human biofluids with a diameter of 30-150 nm. They can serve as carriers to convey their internal cargo, particularly microRNA (miRNA), to the target cells involved in cellular communication. In disease states, the quantities of exosomes and the cargo generated by cells are altered. These exosomes subsequently function as autocrine or paracrine signals to nearby or distant cells, regulating various pathogenic processes. Moreover, exosomal miRNAs from multiple stem cells can provide therapeutic value for ALI by regulating different signaling pathways. In addition, changes in exosomal miRNAs of biofluids can serve as biomarkers for the early diagnosis of ALI. This study aimed to review the role of exosomal miRNAs produced by different sources participating in various pathological processes of ALI and explore their potential significance in the treatment and diagnosis.
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Affiliation(s)
- Bowen Lan
- Department
of General Surgery, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Laboratory
of Integrative Medicine, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
| | - Xuanchi Dong
- Department
of General Surgery, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Laboratory
of Integrative Medicine, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
| | - Qi Yang
- Department
of General Surgery, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Laboratory
of Integrative Medicine, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Department
of Traditional Chinese Medicine, The Second
Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - Yalan Luo
- Department
of General Surgery, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Laboratory
of Integrative Medicine, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Institute
(College) of Integrative Medicine, Dalian
Medical University, Dalian 116044, China
| | - Haiyun Wen
- Department
of General Surgery, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Laboratory
of Integrative Medicine, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Institute
(College) of Integrative Medicine, Dalian
Medical University, Dalian 116044, China
| | - Zhe Chen
- Department
of General Surgery, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Laboratory
of Integrative Medicine, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
| | - Hailong Chen
- Department
of General Surgery, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Laboratory
of Integrative Medicine, The First Affiliated
Hospital of Dalian Medical University, Dalian 116000, China
- Institute
(College) of Integrative Medicine, Dalian
Medical University, Dalian 116044, China
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