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Liang W, Zhang T, Zhang M, Gao J, Huang R, Huang X, Chen J, Cheng L, Zhang L, Huang Z, Tan Q, Jia Z, Zhang S. Daphnetin Ameliorates Neuropathic Pain via Regulation of Microglial Responses and Glycerophospholipid Metabolism in the Spinal Cord. Pharmaceuticals (Basel) 2024; 17:789. [PMID: 38931456 PMCID: PMC11207025 DOI: 10.3390/ph17060789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/31/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
Neuropathic pain (NP) is a common type of chronic pain caused by a lesion or disease of the somatosensory nervous system. This condition imposes a considerable economic burden on society and patients. Daphnetin (DAP) is a natural product isolated from a Chinese medicinal herb with various pharmacological activities, such as anti-inflammatory and analgesic properties. However, the underlying mechanisms of these effects are not fully understood. In the present study, we aimed to investigate DAP's anti-inflammatory and analgesic effects and explore the underlying mechanisms of action. The NP model was established as chronic constrictive injury (CCI) of the sciatic nerve, and pain sensitivity was evaluated by measuring the mechanical withdrawal threshold (MWT) and thermal withdrawal threshold (TWT). The activation of microglia in the spinal dorsal horn was measured via immunofluorescence staining. Protein levels were measured using a western blot assay. Using a mass-spectrometry proteomics platform and an LC-MS/MS-based metabolomics platform, proteins and metabolites in spinal cord tissues were extracted and analyzed. DAP treatment ameliorated the MWT and TWT in CCI rats. The expression of IL-1β, IL-6, and TNF-α was inhibited by DAP treatment in the spinal cords of CCI rats. Moreover, the activation of microglia was suppressed after DAP treatment. The elevation in the levels of P2X4, IRF8, IRF5, BDNF, and p-P38/P38 in the spinal cord caused by CCI was inhibited by DAP. Proteomics and metabolomics results indicated that DAP ameliorated the imbalance of glycerophospholipid metabolism in the spinal cords of CCI rats. DAP can potentially ameliorate NP by regulating microglial responses and glycerophospholipid metabolism in the CCI model. This study provides a pharmacological justification for using DAP in the management of NP.
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Affiliation(s)
- Wulin Liang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Tianrui Zhang
- Shanxi Provincial Key Laboratory of Drug Toxicology and Preclinical Research of Radiopharmaceuticals, Key Laboratory of Radiotoxicology and Preclinical Evaluation of Radiopharmaceuticals in China, National Atomic Energy Agency Nuclear Technology Research and Development Center, Institute of Radiology and Environmental Medicine, China Institute For Radiation Protection, Taiyuan 030006, China
| | - Mingqian Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Jiahui Gao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Rikang Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Xiyan Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Jianhua Chen
- Shanxi Provincial Key Laboratory of Drug Toxicology and Preclinical Research of Radiopharmaceuticals, Key Laboratory of Radiotoxicology and Preclinical Evaluation of Radiopharmaceuticals in China, National Atomic Energy Agency Nuclear Technology Research and Development Center, Institute of Radiology and Environmental Medicine, China Institute For Radiation Protection, Taiyuan 030006, China
| | - Lu Cheng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Liyuan Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Zhishan Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Qiling Tan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Zhanhong Jia
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Shuofeng Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
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Zhang W, Liu Y, Liao Y, Zhu C, Zou Z. GPX4, ferroptosis, and diseases. Biomed Pharmacother 2024; 174:116512. [PMID: 38574617 DOI: 10.1016/j.biopha.2024.116512] [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: 12/07/2023] [Revised: 03/03/2024] [Accepted: 03/27/2024] [Indexed: 04/06/2024] Open
Abstract
GPX4 (Glutathione peroxidase 4) serves as a crucial intracellular regulatory factor, participating in various physiological processes and playing a significant role in maintaining the redox homeostasis within the body. Ferroptosis, a form of iron-dependent non-apoptotic cell death, has gained considerable attention in recent years due to its involvement in multiple pathological processes. GPX4 is closely associated with ferroptosis and functions as the primary inhibitor of this process. Together, GPX4 and ferroptosis contribute to the pathophysiology of several diseases, including sepsis, nervous system diseases, ischemia reperfusion injury, cardiovascular diseases, and cancer. This review comprehensively explores the regulatory roles and impacts of GPX4 and ferroptosis in the development and progression of these diseases, with the aim of providing insights for identifying potential therapeutic strategies in the future.
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Affiliation(s)
- Wangzheqi Zhang
- School of Anesthesiology, Naval Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Yang Liu
- School of Anesthesiology, Naval Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Yan Liao
- School of Anesthesiology, Naval Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Chenglong Zhu
- School of Anesthesiology, Naval Medical University, 168 Changhai Road, Shanghai 200433, China.
| | - Zui Zou
- School of Anesthesiology, Naval Medical University, 168 Changhai Road, Shanghai 200433, China.
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Tang J, Chen Q, Xiang L, Tu T, Zhang Y, Ou C. TRIM28 Fosters Microglia Ferroptosis via Autophagy Modulation to Enhance Neuropathic Pain and Neuroinflammation. Mol Neurobiol 2024:10.1007/s12035-024-04133-4. [PMID: 38647647 DOI: 10.1007/s12035-024-04133-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 03/16/2024] [Indexed: 04/25/2024]
Abstract
This study explores the molecular underpinnings of neuropathic pain (NPP) and neuroinflammation, focusing on the role of TRIM28 in the regulation of autophagy and microglia ferroptosis. Leveraging transcriptomic data associated with NPP, we identified TRIM28 as a critical regulator of ferroptosis. Through comprehensive analysis, including Gene Ontology enrichment and protein-protein interaction network assessments, we unveiled GSK3B as a downstream target of TRIM28. Experimental validation confirmed the capacity of TRIM28 to suppress GSK3B expression and attenuate autophagic processes in microglia. We probed the consequences of autophagy and ferroptosis on microglia physiology, iron homeostasis, oxidative stress, and the release of proinflammatory cytokines. In a murine model, we validated the pivotal role of TRIM28 in NPP and neuroinflammation. Our analysis identified 20 ferroptosis regulatory factors associated with NPP, with TRIM28 emerging as a central orchestrator. Experimental evidence affirmed that TRIM28 governs microglial iron homeostasis and cell fate by downregulating GSK3B expression and modulating autophagy. Notably, autophagy was found to influence oxidative stress and proinflammatory cytokine release through the iron metabolism pathway, ultimately fueling neuroinflammation. In vivo experiments provided conclusive evidence of TRIM28-mediated pathways contributing to heightened pain sensitivity in neuroinflammatory states. The effect of TRIM28 on autophagy and microglia ferroptosis drives NPP and neuroinflammation. These findings offer promising avenues for identifying novel therapeutic targets to manage NPP and neuroinflammation.
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Affiliation(s)
- Jian Tang
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, No. 25 Taiping Street, Luzhou, Sichuan, 646000, China
| | - Qi Chen
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, No. 25 Taiping Street, Luzhou, Sichuan, 646000, China
| | - Li Xiang
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, No. 25 Taiping Street, Luzhou, Sichuan, 646000, China
| | - Ting Tu
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, No. 25 Taiping Street, Luzhou, Sichuan, 646000, China
| | - Ying Zhang
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, No. 25 Taiping Street, Luzhou, Sichuan, 646000, China.
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, Sichuan, 646000, China.
| | - Cehua Ou
- Department of Pain Management, The Affiliated Hospital, Southwest Medical University, No.25 Taiping Street, Luzhou, Sichuan, 646000, China.
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Balistreri CR, Monastero R. Neuroinflammation and Neurodegenerative Diseases: How Much Do We Still Not Know? Brain Sci 2023; 14:19. [PMID: 38248234 PMCID: PMC10812964 DOI: 10.3390/brainsci14010019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/12/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024] Open
Abstract
The term "neuroinflammation" defines the typical inflammatory response of the brain closely related to the onset of many neurodegenerative diseases (NDs). Neuroinflammation is well known, but its mechanisms and pathways are not entirely comprehended. Some progresses have been achieved through many efforts and research. Consequently, new cellular and molecular mechanisms, diverse and conventional, are emerging. In listing some of those that will be the subject of our description and discussion, essential are the important roles of peripheral and infiltrated monocytes and clonotypic cells, alterations in the gut-brain axis, dysregulation of the apelinergic system, alterations in the endothelial glycocalyx of the endothelial component of neuronal vascular units, variations in expression of some genes and levels of the encoding molecules by the action of microRNAs (miRNAs), or other epigenetic factors and distinctive transcriptional factors, as well as the role of autophagy, ferroptosis, sex differences, and modifications in the circadian cycle. Such mechanisms can add significantly to understanding the complex etiological puzzle of neuroinflammation and ND. In addition, they could represent biomarkers and targets of ND, which is increasing in the elderly.
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Affiliation(s)
- Carmela Rita Balistreri
- Cellular and Molecular Laboratory, Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, 90134 Palermo, Italy
| | - Roberto Monastero
- Unit of Neurology & Neuro-Physiopathology, Department of Biomedicine, Neuroscience, and Advanced Diagnostics (Bi.N.D), University of Palermo, Via La Loggia 1, 90129 Palermo, Italy;
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