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An S, Shi J, Huang J, Li Z, Feng M, Cao G. HIF-1α Induced by Hypoxia Promotes Peripheral Nerve Injury Recovery Through Regulating Ferroptosis in DRG Neuron. Mol Neurobiol 2024; 61:6300-6311. [PMID: 38291291 DOI: 10.1007/s12035-024-03964-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/15/2024] [Indexed: 02/01/2024]
Abstract
Peripheral nerve injury (PNI) usually has a poor effect on functional recovery and severely declines the patient's quality of life. Our prior findings indicated that hypoxia remarkably promoted nerve regeneration of rats with sciatic nerve transection. However, the underlying molecular mechanisms of hypoxia in functional recovery of PNI still remain elusive. In this research, we tried to explain the functional roles and mechanisms of hypoxia and the hypoxia-inducible factor-1α (HIF-1α) in PNI. Our results indicated that hypoxia promoted proliferation and migration of dorsal root ganglia (DRG) and increased the expression of brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF). Mechanistically, hypoxia suppressed ferroptosis through activating HIF-1α in DRG neurons. Gain and loss of function studies were performed to evaluate the regulatory roles of HIF-1α in ferroptosis and neuron recovery. The results revealed that up-regulation of HIF-1α enhanced the expression of solute carrier family membrane 11 (SLC7A11) and glutathione peroxidase 4 (GPX4) and increased the contents of cysteine and glutathione, while inhibiting the accumulation of reactive oxygen species (ROS). Our findings provided novel light on the mechanism of ferroptosis involved in PNI and manifest hypoxia as a potential therapeutic strategy for PNI recovery.
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Affiliation(s)
- Shuai An
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Jingfei Shi
- Cerebrovascular and Neuroscience Research Institute, Beijing Institute of Geriatrics, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jiang Huang
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Zheng Li
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Mingli Feng
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
| | - Guanglei Cao
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
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Wang H, Mao W, Zhang Y, Feng W, Bai B, Ji B, Chen J, Cheng B, Yan F. NOX1 triggers ferroptosis and ferritinophagy, contributes to Parkinson's disease. Free Radic Biol Med 2024; 222:331-343. [PMID: 38876456 DOI: 10.1016/j.freeradbiomed.2024.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 06/06/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024]
Abstract
The progressive loss of dopaminergic neurons in the midbrain is the hallmark of Parkinson's disease (PD). A newly emerging form of lytic cell death, ferroptosis, has been implicated in PD. However, it remains unclear in terms of PD-associated ferroptosis underlying causative genes and effective therapeutic approaches. This research explored the underlying mechanism of ferroptosis-related genes in PD. Here, Firstly, we found NOX1 associated with ferroptosis differently in PD patients by bioinformatics analysis. In vitro and in vivo models of PD were constructed to explore the underlying mechanism. qPCR, Western blot analysis, immunohistochemistry, immunofluorescence, Ferro orange, and BODIPY C11 were utilized to analyze the levels of ferroptosis. Transcriptomics sequencing was to investigate the downstream pathway and the analysis of immunoprecipitation to validate the upstream factor. In conclusion, NOX1 upregulation and activation of ferroptosis-related neurodegeneration, therefore, might be useful as a clinical therapeutic agent.
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Affiliation(s)
- Huiqing Wang
- School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Wenwei Mao
- Jining Medical University, Jining, 272067, People's Republic of China
| | - Yuhan Zhang
- Jining Medical University, Jining, 272067, People's Republic of China
| | - Wenhui Feng
- Jining Medical University, Jining, 272067, People's Republic of China
| | - Bo Bai
- Jining Medical University, Jining, 272067, People's Republic of China
| | - Bingyuan Ji
- Institute of Precision Medicine, Jining Medical University, Jining, 272067, People's Republic of China
| | - Jing Chen
- Neurobiology Institute, Jining Medical University, 272067, Jining, People's Republic of China; Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
| | - Baohua Cheng
- Neurobiology Institute, Jining Medical University, 272067, Jining, People's Republic of China; College of Basic Medicine, Jining Medical University, Jining, 272067, People's Republic of China.
| | - Fuling Yan
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, No. 87 Dingjiaqiao Road, Nanjing, 210009, People's Republic of China.
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