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Gao J, Chen S, Lin S, Mei X. Prussian blue analogues improves the microenvironment after spinal cord injury by regulating Zn. Int Immunopharmacol 2024; 131:111868. [PMID: 38493692 DOI: 10.1016/j.intimp.2024.111868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Mitochondrial injury, neuronal apoptosis and phenotypic transformation of macrophages are the main mechanisms of spinal cord injury. Based on the Prussian blue nanomase's strong ability to clear free radicals, the treatment of spinal cord injury with nano-zirconium (Pb-Zr) was carried out. The disease treatment strategy based on nanomaterials has excellent therapeutic effect, and Prussian blue analogs have good therapeutic properties, so the application prospects of Prussian blue analogs is broad. From the point of view of Prussian blue content, improving the presence of zirconium in the microenvironment significantly increased the activity of Prussian blue. Prussian Blue zirconium significantly improved lipopolysaccharide (LPS) and interferon (IFN-γ) induced neuronal cell (pc12 cells) and macrophage dysfunction by improving oxidative stress, inflammation, and apoptosis in the microenvironment. It can promote the recovery of motor function after spinal cord injury. In vivo experiments, it shows that Prussian blue zirconium can improve inflammation, apoptosis and oxidative stress of spinal cord tissue, promote regenerative therapy after spinal cord injury, and improve motor function. Moreover, it has been reported that high-priced Zr4+ cations can regulate the deposition and nucleation behavior of Zn2+ in high-performance zinc metal anodes. Therefore, we propose the hypothesis that Pb-Zr modulates Zn2+ be used to promote recovery from spinal cord injury. The results show that nanomaterial is beneficial in the treatment of spinal cord injury. This study provides a good prospect for the application of spinal cord injury treatment. It also provides an important feasibility for subsequent clinical conversions.
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Affiliation(s)
- Jinpeng Gao
- Department of Orthopedic of the Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Key Laboratory of Medical Tissue Engineering, Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China
| | - ShuRui Chen
- Department of Orthopedic of the Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Key Laboratory of Medical Tissue Engineering, Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Guangdong Second Provincial General Hospital, Integrated Chinese and Western Medicine Postdoctoral Research, Station School of Medicine, Jinan Guangzhou, Guangdong Province 510515, China
| | - Sen Lin
- Department of Orthopedic of the Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Key Laboratory of Medical Tissue Engineering, Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China.
| | - Xifan Mei
- Department of Orthopedic of the Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Key Laboratory of Medical Tissue Engineering, Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China.
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2
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Lin S, Cui J, Li X, Chen S, Gao K, Mei X. Modified ZIF-8 Nanoparticles for Targeted Metabolic Treatment of Acute Spinal Cord Injury. ACS Appl Mater Interfaces 2024. [PMID: 38499046 DOI: 10.1021/acsami.3c13984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
The activation of proinflammatory M1-type macrophages in the injured lesion accelerates the progression of a spinal cord injury (SCI). However, adverse side effects during systemic treatments targeting M1 macrophages have limited their applications. Nanoplatforms are novel carriers of traditional Chinese medicine because of their great efficiency to deliver and accumulation in the lesion. Herein, we synthesized a modified zeolitic imidazolate framework-8 (ZIF-8) nanoplatform for internalization and accumulation in the injured spinal cord and effective administration for SCI. In vitro and in vivo experiments suggested that Prussian blue and Schisandrin B modified ZIF-8 effectively accumulated in M1 macrophages, inhibited reactive oxygen species (ROS), and polarized the macrophage from proinflammatory M1 to anti-inflammatory M2 for rapid tissue infiltration by reprogramming the metabolic macrophages phenotype. This nanoplatform achieves a synergistic therapeutic effect of immunomodulation and neuroprotection, thereby shedding new light on the application of ZIF-8, and provides great potential for SCI.
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Affiliation(s)
- Sen Lin
- Department of Orthopedics, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou 121002, P. R. China
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou 010, P. R. China
- Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou 010, P. R. China
| | - Jingwen Cui
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou 010, P. R. China
- Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou 010, P. R. China
| | - Xiang Li
- Harbin Medical University, Harbin 150086, P. R. China
| | - Shurui Chen
- Cardiac Intensive Care Unit, Cardiovascular Hospital, Guangdong Second Provincial General Hospital, Guangzhou 510317, P. R. China
- Integrated Chinese and Western Medicine Postdoctoral Research Station, School of Medicine, Jinan University, Guangzhou 510317, P. R. China
| | - Kai Gao
- Department of Orthopedics, Jining No. 1 People's Hospital, Jining 272111, P. R. China
| | - Xifan Mei
- Department of Orthopedics, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou 121002, P. R. China
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou 010, P. R. China
- Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou 010, P. R. China
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Li X, Li Y, Jin Y, Zhang Y, Wu J, Xu Z, Huang Y, Cai L, Gao S, Liu T, Zeng F, Wang Y, Wang W, Yuan TF, Tian H, Shu Y, Guo F, Lu W, Mao Y, Mei X, Rao Y, Peng B. Publisher Correction: Transcriptional and epigenetic decoding of the microglial aging process. Nat Aging 2024; 4:276. [PMID: 38200274 PMCID: PMC10878962 DOI: 10.1038/s43587-024-00571-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Affiliation(s)
- Xiaoyu Li
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Yuxin Li
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Yuxiao Jin
- Department of Neurology, Zhongshan Hospital, Department of Laboratory Animal Science, MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Yuheng Zhang
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Jingchuan Wu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhen Xu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yubin Huang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Lin Cai
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
- Department of Neurology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuai Gao
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Taohui Liu
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Fanzhuo Zeng
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yafei Wang
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Wenxu Wang
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Ti-Fei Yuan
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hengli Tian
- Department of Neurology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yousheng Shu
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Feifan Guo
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Wei Lu
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Ying Mao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Xifan Mei
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yanxia Rao
- Department of Neurology, Zhongshan Hospital, Department of Laboratory Animal Science, MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China.
| | - Bo Peng
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China.
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.
- Co-Innovation Center of Neurodegeneration, Nantong University, Nantong, China.
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Li Y, Zou Z, An J, Liu X, Wu Q, Sun J, Liu X, Du J, Xiong Y, Wu C, Mei X, Tian H. Folic acid-functionalized chitosan nanoparticles with bioenzyme activity for the treatment of spinal cord injury. Eur J Pharm Sci 2024; 192:106667. [PMID: 38061663 DOI: 10.1016/j.ejps.2023.106667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 11/03/2023] [Accepted: 12/05/2023] [Indexed: 12/22/2023]
Abstract
Spinal cord injury (SCI) is a central system disease with a high rate of disability. Pathological changes such as ischemia and hypoxia of local tissues, oxidative stress and apoptosis could lead to limb pain, paralysis and even life-threatening. It was reported that catalase (CAT) was the main antioxidant in organisms, which could remove reactive oxygen species (ROS) and release oxygen (O2). However, the efficacy of the drug is largely limited due to its poor stability, low bioavailability and inability to cross the blood spinal cord barrier (BSCB). Therefore, in this study, we prepared folic acid-functionalized chitosan nanoparticles to deliver CAT (FA-CSNCAT) for solving this problem. In vivo small animal imaging results showed that FA-CSN could carry CAT across the BSCB and target to the inflammatory site. In addition, Immunofluorescence, ROS assay and JC-1 probe were used to detect the therapeutic effect of FA-CSNCAT in vitro and in vivo. The results showed that FA-CSNCAT could alleviate the hypoxic environment at the injured site and remove ROS, thereby inhibiting oxidative stress and protecting neurons, which may provide a new idea for clinical medication of SCI.
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Affiliation(s)
- Yingqiao Li
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Zhiru Zou
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jinyu An
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Xiaoyao Liu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Qian Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Junpeng Sun
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Xiaobang Liu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jiaqun Du
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Ying Xiong
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050, Caen, France
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
| | - Xifan Mei
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China.
| | - He Tian
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China; School of Basic Medicine, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
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Li D, Sun C, Zhuang P, Mei X. Revolutionizing SARS-CoV-2 omicron variant detection: Towards faster and more reliable methods. Talanta 2024; 266:124937. [PMID: 37481886 DOI: 10.1016/j.talanta.2023.124937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 07/03/2023] [Accepted: 07/11/2023] [Indexed: 07/25/2023]
Abstract
The emergence of the highly contagious Omicron variant of SARS-CoV-2 has inflicted significant damage during the ongoing COVID-19 pandemic. This new variant's significant sequence changes and mutations in both proteins and RNA have rendered many existing rapid detection methods ineffective in identifying it accurately. As the world races to control the spread of the virus, researchers are urgently exploring new diagnostic strategies to specifically detect Omicron variants with high accuracy and sensitivity. In response to this challenge, we have compiled a comprehensive overview of the latest reported rapid detection techniques. These techniques include strategies for the simultaneous detection of multiple SARS-CoV-2 variants and methods for selectively distinguishing Omicron variants. By categorizing these diagnostic techniques based on their targets, which encompass protein antigens and nucleic acids, we aim to offer a comprehensive understanding of the utilization of various recognition elements in identifying these targets. We also highlight the advantages and limitations of each approach. Our work is crucial in providing a more nuanced understanding of the challenges and opportunities in detecting Omicron variants and emerging variants.
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Affiliation(s)
- Dan Li
- College of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, China.
| | - Cai Sun
- AECC Shenyang Liming Aero-Engine Co., Ltd., Shenyang, China
| | - Pengfei Zhuang
- College of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, China
| | - Xifan Mei
- Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning, China.
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Sun J, Liu X, Du J, An J, Li Y, Hu Y, Cheng S, Xiong Y, Yu Y, Tian H, Mei X, Wu C. Manganese-doped albumin-gelatin composite nanogel loaded with berberine applied to the treatment of gouty arthritis in rats via a SPARC-dependent mechanism. Int J Biol Macromol 2023; 253:126999. [PMID: 37730000 DOI: 10.1016/j.ijbiomac.2023.126999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/10/2023] [Accepted: 09/17/2023] [Indexed: 09/22/2023]
Abstract
In this study, manganese-doped albumin-gelatin composite nanogels (MAGN) were prepared and used to load berberine (Ber) for the treatment of gouty arthritis (GA). The nanodrug delivery system (Ber-MAGN) can target inflammatory joints due to the intrinsic high affinity of albumin for SPARC, which is overexpressed at the inflammatory site of GA. Characterization of the pharmaceutical properties in vitro showed that Ber-MAGN had good dispersion, and the particle size was 121 ± 10.7 nm. The sustained release effect significantly improved the bioavailability of berberine. In vitro and in vivo experimental results showed that Ber-MAGN has better therapeutic effects in relieving oxidative stress and suppressing inflammation. Therefore, Ber-MAGN, as a potential pharmaceutical preparation for GA, provides a new reference for the clinical treatment plan of GA.
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Affiliation(s)
- Junpeng Sun
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Xiaobang Liu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jiaqun Du
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jinyu An
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Yingqiao Li
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Yu Hu
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; School of Basic Medicine, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Shuai Cheng
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; School of Basic Medicine, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
| | - Ying Xiong
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050 Caen, France.
| | - Yanan Yu
- Medical College of Jinzhou Medical University, Jinzhou Medical University, 121010, China
| | - He Tian
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; School of Basic Medicine, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
| | - Xifan Mei
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
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Deng H, Liu Y, Shi Z, Yang J, Liu C, Mei X. Zinc regulates a specific subpopulation of VEGFA + microglia to improve the hypoxic microenvironment for functional recovery after spinal cord injury. Int Immunopharmacol 2023; 125:111092. [PMID: 37883817 DOI: 10.1016/j.intimp.2023.111092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/05/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023]
Abstract
INTRODUCTION Spinal cord injury (SCI) is a central nervous system injury that is primarily traumatic and manifests as autonomic dysfunction below the level of injury. Our previous studies have found that zinc ions have important effects on the nervous system and nerve repair, promoting autophagy and reducing inflammatory responses. However, the role of zinc ions in vascular regeneration is unclear. AIMS We investigated the effect of zinc ions after spinal cord injury from the perspective of a hypoxic microenvironment, and elucidated the role of VEGF-A secreted by microglia for vascular regeneration after spinal cord injury, providing new ideas for the treatment of spinal cord injury. RESULTS Zinc promotes functional recovery after spinal cord injury by regulating VEGF-A secretion from microglia. On the one hand, VEGF-A secreted by microglia promotes angiogenesis through the PI3K/AKT/Bcl-2 pathway and improves the hypoxic microenvironment after spinal cord injury. On the other hand, VEGF-A secreted by microglia was positively correlated with platelet endothelial cell adhesion molecule-1 (CD31), and zinc could increase the association between microglia and blood vessels. CONCLUSION Zinc promoted microglia secretion of VEGF-A, increased vascular endothelial cell proliferation and migration through the PI3K/AKT/Bcl-2 pathway, and inhibited microglia apoptosis.
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Affiliation(s)
- Hao Deng
- Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, China
| | - Yu Liu
- Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, China
| | - Zuqiang Shi
- Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, China
| | - Jing Yang
- Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, China
| | - Chang Liu
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, China.
| | - Xifan Mei
- Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, China.
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Yin X, Lin S, Xiong Y, Zhang P, Mei X. Biomimetic nanoplatform with anti-inflammation and neuroprotective effects for repairing spinal cord injury in mice. Mater Today Bio 2023; 23:100836. [PMID: 38046275 PMCID: PMC10689280 DOI: 10.1016/j.mtbio.2023.100836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/07/2023] [Accepted: 10/14/2023] [Indexed: 12/05/2023] Open
Abstract
Regeneration in the therapeutics of spinal cord injury (SCI) remains a challenge caused by the hyperinflammation microenvironment. Nanomaterials-based treatment strategies for diseases with excellent therapeutic efficacy are actively pursued. Here, we develop biodegradable poly (lactic-co-glycolic acid) nanoparticles (PLGA) obtained by loading celastrol (pCel) for SCI thrapy. Cel, as an antioxidant drug, facilitated reactive oxygen species (ROS) scavenging, and decreased the generation of pro-inflammatory cytokines. To facilitate its administration, pCel is formulated into microspheres by oil-in-water (O/W) emulsion/solvent evaporation technique. The constructed pCel can induced polarization of macrophages and obviously improved lipopolysaccharide (LPS) and interferon-γ (IFN-γ)-induced mitochondrial dysfunction, and increased neurite length in PC12 cells and primary neurons. In vivo experiments revealed that pCel regulated the phenotypic polarization of macrophages, prevented the release of pro-inflammatory cytokines, promoted myelin regeneration and inhibited scar tissue formation, and further improve motor function. These findings indicated that the neuroprotective effect of this artificial biodegradable nanoplatform is benefit for the therapy of SCI. This research opens an exciting perspective for the application of SCI treatment and supports the clinical significance of pCel.
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Affiliation(s)
- Xuechen Yin
- Department of Laboratory Medicine, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Sen Lin
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Ying Xiong
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), France
| | - Peng Zhang
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xifan Mei
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Wang Z, Zhang C, Meng J, Jiao Z, Bao W, Tian H, Wu C, Chai W, Li R, Liu Z, Ma G, Mei X, Wei W. A Targeted Exosome Therapeutic Confers Both CfDNA Scavenging and Macrophage Polarization for Ameliorating Rheumatoid Arthritis. Adv Mater 2023; 35:e2302503. [PMID: 37681753 DOI: 10.1002/adma.202302503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 08/20/2023] [Indexed: 09/09/2023]
Abstract
Only a minority of rheumatoid arthritis (RA) patients achieve disease remission, so the exploration of additional pathogenic factors and the development of new therapeutics are needed. Here, strong correlations among the cell-free DNA (cfDNA) level and the inflammatory response in clinical synovial fluid samples and RA disease activity are discovered. The important role of cfDNA in disease development in a collagen-induced arthritis (CIA) murine model is also demonstrated. Building on these findings, a novel therapeutic based on anti-inflammatory (M2) macrophage-derived exosomes as chassis, that are modified with both oligolysine and matrix metalloproteinase (MMP)-cleavable polyethylene glycol (PEG) on the membrane, is developed. After intravenous injection, PEG-enabled prolonged circulation and C─C motif chemokine ligand-directed accumulation together result in enrichment at inflamed joints. Following subsequent MMP cleavage, the positively charged oligolysine is exposed for cfDNA scavenging, while exosomes induce M2 polarization. By using a classical CIA murine model and a newly established CIA canine model, it is demonstrated that the rationally designed exosome therapeutic substantially suppresses inflammation in joints and provides strong chondroprotection and osteoprotection, revealing its potential for effective CIA amelioration.
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Affiliation(s)
- Zhe Wang
- Department of Orthopedics, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121002, P. R. China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Key Laboratory of Medical Tissue Engineering of Liaoning, Jinzhou Medical University, Jinzhou, 121001, P. R. China
| | - Chuanjie Zhang
- Department of Orthopedics, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121002, P. R. China
- Key Laboratory of Medical Tissue Engineering of Liaoning, Jinzhou Medical University, Jinzhou, 121001, P. R. China
| | - Jiaqi Meng
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhouguang Jiao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Weier Bao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - He Tian
- Key Laboratory of Medical Tissue Engineering of Liaoning, Jinzhou Medical University, Jinzhou, 121001, P. R. China
| | - Chao Wu
- Key Laboratory of Medical Tissue Engineering of Liaoning, Jinzhou Medical University, Jinzhou, 121001, P. R. China
| | - Wei Chai
- Senior Department of Orthopedics, the Fourth Medical Center of PLA General Hospital, Beijing, 100037, P. R. China
| | - Rui Li
- Senior Department of Orthopedics, the Fourth Medical Center of PLA General Hospital, Beijing, 100037, P. R. China
| | - Zheng Liu
- Senior Department of Orthopedics, the Fourth Medical Center of PLA General Hospital, Beijing, 100037, P. R. China
| | - Guanghui Ma
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xifan Mei
- Department of Orthopedics, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121002, P. R. China
- Key Laboratory of Medical Tissue Engineering of Liaoning, Jinzhou Medical University, Jinzhou, 121001, P. R. China
| | - Wei Wei
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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10
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Fan T, Li C, Liu X, Xu H, Li W, Wang M, Mei X, Li D. Development of practical techniques for simultaneous detection and distinction of current and emerging SARS-CoV-2 variants. ANAL SCI 2023; 39:1839-1856. [PMID: 37517003 DOI: 10.1007/s44211-023-00396-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/18/2023] [Indexed: 08/01/2023]
Abstract
Countless individuals have fallen victim to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and have generated antibodies, reducing the risk of secondary infection in the short term. However, with the emergence of mutated strains, the probability of subsequent infections remains high. Consequently, the demand for simple and accessible methods for distinguishing between different variants is soaring. Although monitoring viral gene sequencing is an effective approach for differentiating between various types of SARS-CoV-2 variants, it may not be easily accessible to the general public. In this article, we provide an overview of the reported techniques that use combined approaches and adaptable testing methods that use editable recognition receptors for simultaneous detection and distinction of current and emerging SARS-CoV-2 variants. These techniques employ straightforward detection strategies, including tests capable of simultaneously identifying and differentiating between different variants. Furthermore, we recommend advancing the development of uncomplicated protocols for distinguishing between current and emerging variants. Additionally, we propose further development of facile protocols for the differentiation of existing and emerging variants.
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Affiliation(s)
- Tuocen Fan
- Jinzhou Medical University, Jinzhou, 121000, China
| | - Chengjie Li
- Jinzhou Medical University, Jinzhou, 121000, China
| | - Xinlei Liu
- Jinzhou Medical University, Jinzhou, 121000, China
| | - Hongda Xu
- Jinzhou Medical University, Jinzhou, 121000, China
| | - Wenhao Li
- Jinzhou Medical University, Jinzhou, 121000, China
| | - Minghao Wang
- Jinzhou Medical University, Jinzhou, 121000, China
| | - Xifan Mei
- Jinzhou Medical University, Jinzhou, 121000, China.
| | - Dan Li
- Jinzhou Medical University, Jinzhou, 121000, China.
- College of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, China.
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11
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Li D, Fan T, Mei X. A comprehensive exploration of the latest innovations for advancements in enhancing selectivity of nanozymes for theranostic nanoplatforms. Nanoscale 2023; 15:15885-15905. [PMID: 37755133 DOI: 10.1039/d3nr03327a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Nanozymes have captured significant attention as a versatile and promising alternative to natural enzymes in catalytic applications, with wide-ranging implications for both diagnosis and therapy. However, the limited selectivity exhibited by many nanozymes presents challenges to their efficacy in diagnosis and raises concerns regarding their impact on the progression of disease treatments. In this article, we explore the latest innovations aimed at enhancing the selectivity of nanozymes, thereby expanding their applications in theranostic nanoplatforms. We place paramount importance on the critical development of highly selective nanozymes and present innovative strategies that have yielded remarkable outcomes in augmenting selectivities. The strategies encompass enhancements in analyte selectivity by incorporating recognition units, refining activity selectivity through the meticulous control of structural and elemental composition, integrating synergistic materials, fabricating selective nanomaterials, and comprehensively fine-tuning selectivity via approaches such as surface modification, cascade nanozyme systems, and manipulation of external stimuli. Additionally, we propose optimized approaches to propel the further advancement of these tailored nanozymes while considering the limitations associated with existing techniques. Our ultimate objective is to present a comprehensive solution that effectively addresses the limitations attributed to non-selective nanozymes, thus unlocking the full potential of these catalytic systems in the realm of theranostics.
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Affiliation(s)
- Dan Li
- College of Pharmacy, Jinzhou Medical University, 40 Songpo Rd, Jinzhou 121000, China.
| | - Tuocen Fan
- Jinzhou Medical University, 40 Songpo Rd, Jinzhou 121000, China.
| | - Xifan Mei
- Jinzhou Medical University, 40 Songpo Rd, Jinzhou 121000, China.
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Yang Z, Wang J, Qi Y, Tian X, Mei X, Zhang Z, Wang S. [Bioinformatics analysis of the RNA binding protein DDX39 of Toxoplasma gondii]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:358-365. [PMID: 37926470 DOI: 10.16250/j.32.1374.2023002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
OBJECTIVE To analyze the RNA binding protein of Toxoplasma gondii (TgDDX39) using bioinformatics technology, and to evaluate the immunogenicity of TgDDX39, so as to provide insights into development of toxoplasmosis vaccines. METHODS The amino acid sequences of TgDDX39 were retrieved from the ToxoDB database, and the physicochemical properties, transmembrane structure domain, signal peptide sites, post-translational modification sites, coils, secondary and tertiary structures, hydrophobicity, and antigenic epitopes of the TgDDX39 protein were predicted using online bioinformatics tools, incluiding ProtParam, TMHMM 2.0, SignalP 5.0, NetPhos 3.1, COILS, SOPMA, Phyre2, ProtScale, ABCpred, SYFPEITHI and DNA-STAR. RESULTS TgDDX39 protein was predicted to be an unstable hydrophilic protein with the molecular formula of C2173H3458N598O661S18, which contained 434 amino acids and had an estimated molecular weight of 49.1 kDa and a theoretical isoelectric point of 5.55. The protein was predicted to have an extremely low possibility of signal peptides, without transmembrane regions, and contain 27 phosphorylation sites. The β turn and random coils accounted for 39.63% of the secondary structure of the TgDDX39 protein, and a coiled helix tended to produce in one site. In addition, the TgDDX39 protein contained multiple B and T cell antigenic epitopes. CONCLUSIONS Bioinformatics analyses predict that TgDDX39 protein has high immunogenicity and contains multiple antigenic epitopes. TgDDX39 protein is a potential candidate antigen for vaccine development.
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Affiliation(s)
- Z Yang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - J Wang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - Y Qi
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - X Tian
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - X Mei
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - Z Zhang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - S Wang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
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13
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Liu X, Sun J, Du J, An J, Li Y, Hu Y, Xiong Y, Yu Y, Tian H, Mei X, Wu C. Encapsulation of Selenium Nanoparticles and Metformin in Macrophage-Derived Cell Membranes for the Treatment of Spinal Cord Injury. ACS Biomater Sci Eng 2023; 9:5709-5723. [PMID: 37713674 DOI: 10.1021/acsbiomaterials.3c01009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/17/2023]
Abstract
Spinal cord injury is an impact-induced disabling condition. A series of pathological changes after spinal cord injury (SCI) are usually associated with oxidative stress, inflammation, and apoptosis. These pathological changes eventually lead to paralysis. The short half-life and low bioavailability of many drugs also limit the use of many drugs in SCI. In this study, we designed nanovesicles derived from macrophages encapsulating selenium nanoparticles (SeNPs) and metformin (SeNPs-Met-MVs) to be used in the treatment of SCI. These nanovesicles can cross the blood-spinal cord barrier (BSCB) and deliver SeNPs and Met to the site of injury to exert anti-inflammatory and reactive oxygen species scavenging effects. Transmission electron microscopy (TEM) images showed that the SeNPs-Met-MVs particle size was approximately 125 ± 5 nm. Drug release assays showed that Met exhibited sustained release after encapsulation by the macrophage cell membrane. The cumulative release was approximately 80% over 36 h. In vitro cellular experiments and in vivo animal experiments demonstrated that SeNPs-Met-MVs decreased reactive oxygen species (ROS) and malondialdehyde (MDA) levels, increased superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities, and reduced the expression of inflammatory (TNF-α, IL-1β, and IL-6) and apoptotic (cleaved caspase-3) cytokines in spinal cord tissue after SCI. In addition, motor function in mice was significantly improved after SeNPs-Met-MVs treatment. Therefore, SeNPs-Met-MVs have a promising future in the treatment of SCI.
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Affiliation(s)
- Xiaobang Liu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Junpeng Sun
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jiaqun Du
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jinyu An
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Yingqiao Li
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Yu Hu
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- School of Basic Medicine, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Ying Xiong
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie Université, ENSICAEN, UNICAEN, CNRS, Caen 14050, France
| | - Yanan Yu
- Medical College of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, Liaoning 121010, China
| | - He Tian
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- School of Basic Medicine, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Xifan Mei
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
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Jiang D, Yang X, Ge M, Hu H, Xu C, Wen S, Deng H, Mei X. Zinc defends against Parthanatos and promotes functional recovery after spinal cord injury through SIRT3-mediated anti-oxidative stress and mitophagy. CNS Neurosci Ther 2023; 29:2857-2872. [PMID: 37063066 PMCID: PMC10493669 DOI: 10.1111/cns.14222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 03/08/2023] [Accepted: 04/04/2023] [Indexed: 04/18/2023] Open
Abstract
INTRODUCTION Spinal cord injury (SCI) is a central nervous system injury that is primarily traumatic and manifests as motor, sensory, and autonomic dysfunction below the level of damage. Our previous studies confirmed the ability of zinc to protect mitochondria, protect neurons and promote spinal cord recovery. However, the role of zinc in Parthanatos is unknown. AIM We investigated the effects of zinc in Parthanatos from oxidative stress and mitophagy. We elucidated the role of SIRT3 in providing new ideas for treating spinal cord injury. THE RESULTS Zinc protected SCI mice by regulating Parthanatos. On the one hand, zinc eliminated ROS directly through SIRT3 deacetylation targeting SOD2 to alleviate Parthanatos. On the other hand, zinc eliminated ROS indirectly through SIRT3-mediated promotion of mitophagy to alleviate Parthanatos. CONCLUSION Zinc defends against Parthanatos and promotes functional recovery after spinal cord injury through SIRT3-mediated anti-oxidative stress and mitophagy.
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Affiliation(s)
- Dingyuan Jiang
- Suzhou Medical College of Soochow UniversitySuzhouChina
- Department of Spinal SurgeryZhuzhou 331 HospitalZhuzhouChina
| | - Xu Yang
- Suzhou Medical College of Soochow UniversitySuzhouChina
| | - Minghao Ge
- Department of OrthopedicsThe First Affiliated Hospital of Jinzhou Medical UniversityJinzhouChina
| | - Hengshuo Hu
- Department of OrthopedicsThe First Affiliated Hospital of Jinzhou Medical UniversityJinzhouChina
| | - Chang Xu
- Department of OrthopedicsThe First Affiliated Hospital of Jinzhou Medical UniversityJinzhouChina
| | - Shan Wen
- Department of OrthopedicsThe Third Affiliated Hospital of Jinzhou Medical UniversityJinzhouChina
| | - Hao Deng
- Department of OrthopedicsThe Third Affiliated Hospital of Jinzhou Medical UniversityJinzhouChina
| | - Xifan Mei
- Department of OrthopedicsThe Third Affiliated Hospital of Jinzhou Medical UniversityJinzhouChina
- Key Laboratory of Tissue Engineering of Liaoning ProvinceJinzhou Medical UniversityJinzhouChina
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Li X, Li Y, Jin Y, Zhang Y, Wu J, Xu Z, Huang Y, Cai L, Gao S, Liu T, Zeng F, Wang Y, Wang W, Yuan TF, Tian H, Shu Y, Guo F, Lu W, Mao Y, Mei X, Rao Y, Peng B. Transcriptional and epigenetic decoding of the microglial aging process. Nat Aging 2023; 3:1288-1311. [PMID: 37697166 PMCID: PMC10570141 DOI: 10.1038/s43587-023-00479-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 08/03/2023] [Indexed: 09/13/2023]
Abstract
As important immune cells, microglia undergo a series of alterations during aging that increase the susceptibility to brain dysfunctions. However, the longitudinal characteristics of microglia remain poorly understood. In this study, we mapped the transcriptional and epigenetic profiles of microglia from 3- to 24-month-old mice. We first discovered unexpected sex differences and identified age-dependent microglia (ADEM) genes during the aging process. We then compared the features of aging and reactivity in female microglia at single-cell resolution and epigenetic level. To dissect functions of aged microglia excluding the influence from other aged brain cells, we established an accelerated microglial turnover model without directly affecting other brain cells. By this model, we achieved aged-like microglia in non-aged brains and confirmed that aged-like microglia per se contribute to cognitive decline. Collectively, our work provides a comprehensive resource for decoding the aging process of microglia, shedding light on how microglia maintain brain functions.
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Affiliation(s)
- Xiaoyu Li
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Yuxin Li
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Yuxiao Jin
- Department of Neurology, Zhongshan Hospital, Department of Laboratory Animal Science, MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
| | - Yuheng Zhang
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Jingchuan Wu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhen Xu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yubin Huang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Lin Cai
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
- Department of Neurology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuai Gao
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Taohui Liu
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Fanzhuo Zeng
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yafei Wang
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Wenxu Wang
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Ti-Fei Yuan
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hengli Tian
- Department of Neurology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yousheng Shu
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Feifan Guo
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Wei Lu
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China
| | - Ying Mao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Xifan Mei
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yanxia Rao
- Department of Neurology, Zhongshan Hospital, Department of Laboratory Animal Science, MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China.
| | - Bo Peng
- Department of Neurosurgery, Jinshan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Fudan University, Shanghai, China.
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.
- Co-Innovation Center of Neurodegeneration, Nantong University, Nantong, China.
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Yang Z, Meng J, Mei X, Xiao Q, Mo M, Zhang L, Shi W, Chen X, Ma J, Zhang Z, Shao Z, Guo X, Yu X. Stereotactic Radiotherapy or Whole Brain Radiotherapy Combined with Pyrotinib and Capecitabine in HER2-Positive Advanced Breast Cancer Patients with Brain Metastases (BROPTIMA): A Prospective, Phase Ib/II Single-Arm Clinical Study. Int J Radiat Oncol Biol Phys 2023; 117:S173-S174. [PMID: 37784431 DOI: 10.1016/j.ijrobp.2023.06.641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Approximately half of patients with advanced HER2-positive breast cancer (BC) will develop brain metastases (BM) over time. Local therapy including stereotactic radiotherapy (SRT) and whole brain radiotherapy (WBRT) is the main initial treatment in malignant tumor patients with BM. However, more than 50% patients after radiotherapy in one year suffered intracranial recurrence. Pyrotinib, a small molecule, irreversible, pan-ErbB receptor tyrosine kinase inhibitor (TKI), has a high potency for controlling BM and reducing the occurrence of brain metastases in advanced HER2-positive BC patients. We hypothesized that SRT or WBRT combined with pyrotinib and capecitabine could decrease intracranial progression in HER2 positive BC with newly diagnosed BM. MATERIALS/METHODS In this prospective single-arm phase Ib/II trial (NCT04582968), eligible patients were assigned to either fractionated stereotactic radiotherapy (FSRT) or whole-brain radiation therapy (WBRT), combined with pyrotinib and capecitabine. The primary endpoint was one-year CNS progression-free survival (PFS) rate. Secondary endpoints included intracranial objective response rate (IC-ORR) according to RANO-BM criteria, progression-free survival (PFS), overall survival (OS) and evaluation of safety and neurocognitive function. RESULTS From January 2020 to August 2022, 40 patients were enrolled. Twenty-nine patients were treated with FSRT in 8 Gy per fraction with 3 to 5 fractions and 11 were treated with WBRT in 3 Gy per fraction with 10 fractions, and then received chemotherapy in a time frame starting from 0 to 7 days after radiotherapy. At a median follow-up of 17.3 months, 1-year CNS-PFS rate was 74.9% (95% CI 61.9-90.7%) and median CNS-PFS was 18 months (95% CI, 15.5 to NA months). One-year PFS rate was 66.9% (53.1-84.2%) and median PFS time was 17.6 months (95% CI 12.8-34.1 months). The best intracranial response rate (IC-ORR: complete response and partial response) was 92.5% (37/40). The most common grade 3 or worse toxicity was diarrhea (7.5%) and asymptomatic radiation necrosis was detected in 4 of 67(6.0%) lesions treated with FSRT. No differences of neurocognitive function evaluated by MMSE (Mini-Mental State Exam) were observed between different groups at any time point. CONCLUSION Radiotherapy combined with pyrotinib and capecitabine resulted in a promising efficacy that crossed the pre-specified boundary in patients with HER2-positive advanced breast cancer with brain metastases. This is the first prospective study showing the efficacy and safety of CNS radiotherapy concurrent with pyrotinib and capecitabine in patients with BM from HER2-positive breast cancer. Further investigation in a randomized controlled study is warranted.
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Affiliation(s)
- Z Yang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - J Meng
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Mei
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Q Xiao
- Department of Radiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - M Mo
- Department of Statistics, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - L Zhang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - W Shi
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Chen
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - J Ma
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Z Zhang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Z Shao
- Department of Breast Surgery, Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Guo
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Yu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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17
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Abstract
This study aims to investigate the potential therapeutic effect of exosomes derived from macrophages loaded with curcumin (Exos-cur) on the healing of diabetic wounds. As a new type of biomaterial, Exos-cur has better stability, anti-inflammation, and antioxidation biological activity. In in vitro experiments, Exos-cur can promote the proliferation, migration, and angiogenesis of HUVECs (human umbilical vein endothelial cells) while reducing the ROS (reactive oxygen species) produced by HUVECs induced by high glucose, regulating the mitochondrial membrane potential, reducing cell oxidative damage, and inhibiting oxidative stress and inflammation. In the in vivo experiment, the Exos-cur treatment group had an increased percentage of wound closure and contraction compared with the diabetic wound control group. Hematoxylin-eosin staining (HE) and Masson staining showed that the Exos-cur treatment group had more advanced re-epithelialization, and the generated mature granulation tissue was rich in a large number of capillaries and newly deposited collagen fibers. Western blot and immunofluorescence analyses showed that Exos-cur can inhibit inflammation by activating the Nrf2/ARE pathway, upregulate the expression of wound healing-related molecules, promote angiogenesis, and accelerate wound healing in diabetic rats. These results show that Exos-cur has a good therapeutic effect on diabetic skin defects and provide experimental evidence for the potential clinical benefits of Exos-cur.
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Affiliation(s)
- Daoyong Li
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, China
| | - Chuanjie Zhang
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, China
| | - Zhanshan Gao
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121000, China
| | - Nan Xia
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121000, China
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121000, China
| | - Chang Liu
- Department of Endocrinology, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, China
| | - He Tian
- Department of Histology and Embryology, Jinzhou Medical University, Jinzhou, Liaoning 121000, China
| | - Xifan Mei
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, China
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18
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Li D, Zhao B, Zhuang P, Mei X. Development of nanozymes for promising alleviation of COVID-19-associated arthritis. Biomater Sci 2023; 11:5781-5796. [PMID: 37475700 DOI: 10.1039/d3bm00095h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
The COVID-19 pandemic caused by SARS-CoV-2 has been identified as a culprit in the development of a variety of disorders, including arthritis. Although the emergence of arthritis following SARS-CoV-2 infection may not be immediately discernible, its underlying pathogenesis is likely to involve a complex interplay of infections, oxidative stress, immune responses, abnormal production of inflammatory factors, cellular destruction, etc. Fortunately, recent advancements in nanozymes with enzyme-like activities have shown potent antiviral effects and the ability to inhibit oxidative stress and cytokines and provide immunotherapeutic effects while also safeguarding diverse cell populations. These adaptable nanozymes have already exhibited efficacy in treating common types of arthritis, and their distinctive synergistic therapeutic effects offer great potential in the fight against arthritis associated with COVID-19. In this comprehensive review, we explore the potential of nanozymes in alleviating arthritis following SARS-CoV-2 infection by neutralizing the underlying factors associated with the disease. We also provide a detailed analysis of the common therapeutic pathways employed by these nanozymes and offer insights into how they can be further optimized to effectively address COVID-19-associated arthritis.
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Affiliation(s)
- Dan Li
- Department of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, China.
| | - Baofeng Zhao
- Liaoning Provincial Key Laboratory of Medical Testing, Jinzhou Medical University, Jinzhou, 121001, China.
| | - Pengfei Zhuang
- Department of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, China.
| | - Xifan Mei
- Liaoning Provincial Key Laboratory of Medical Testing, Jinzhou Medical University, Jinzhou, 121001, China.
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19
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Ding J, Gao B, Mei X. Preparation of photothermal responsive, antibacterial hydrogel by using PVA-Alg and silver nanofibers as building blocks. Front Bioeng Biotechnol 2023; 11:1222723. [PMID: 37409166 PMCID: PMC10319420 DOI: 10.3389/fbioe.2023.1222723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 05/29/2023] [Indexed: 07/07/2023] Open
Abstract
Introduction: Photothermal responsive, antimicrobial hydrogels are very attractive and have great potential in the field of tissue engineering. The defective wound environment and metabolic abnormalities in diabetic skin would lead to bacterial infections. Therefore, multifunctional composites with antimicrobial properties are urgently needed to improve the current therapeutic outcomes of diabetic wounds. We prepared an injectable hydrogel loaded with silver nanofibers for efficient and sustained bactericidal activity. Methods: To construct this hydrogel with good antimicrobial activity, homogeneous silver nanofibers were first prepared by solvothermal method and then dispersed in PVA-lg solution. After homogeneous mixing and gelation, injectable hydrogels (Ag@H) wrapped with silver nanofibers were obtained. Results: By virtue of Ag nanofibers, Ag@H exhibited good photothermal conversion efficiency and good antibacterial activity against drug-resistant bacteria, while the in vivo antibacterial also showed excellent performance. The results of antibacterial experiments showed that Ag@H had significant bactericidal effects on MRSA and E. coli with 88.4% and 90.3% inhibition rates, respectively. Discussion: The above results indicate that Ag@H with photothermal reactivity and antibacterial activity is very promising for biomedical applications, such as wound healing and tissue engineering.
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20
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Zheng X, Dong Z, Liang Z, Liu Y, Yin X, Han M, Cui Z, Mei X, Gao X. Photothermally responsive icariin and carbon nanofiber modified hydrogels for the treatment of periodontitis. Front Bioeng Biotechnol 2023; 11:1207011. [PMID: 37260832 PMCID: PMC10227505 DOI: 10.3389/fbioe.2023.1207011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 05/02/2023] [Indexed: 06/02/2023] Open
Abstract
Introduction: Periodontitis is a chronic inflammatory disease brought on by various bacteria, and effective antibacterial, anti-inflammatory and alveolar bone regeneration are the main goals of treating periodontal disease. Methods: In the current work, we employed Icariin (ICA) into a hydrogel modified with carbon nanofiber (CNF) to create a multifunctional composite nanoplatform. The composite was activated in the near infrared (NIR) to treat periodontitis. Results: The antibacterial results showed that the ICA+CNF@H showed 94.2% and 91.7% clearance of S. aureus and E. coli, respectively, under NIR irradiation. In vitro experiments showed that NIR-irradiated composites suppressed inflammatory factor (IL-6) and ROS expression and up-regulated the performance of anti-inflammatory factor (IL-10) in RAW264.7 cells. At the same time, the composites promoted the production of osteogenic factors in BMSCs, with an approximately 3-fold increase in alkaline phosphatase activity after 7 days and an approximately 2-fold increase in the rate of extracellular matrix mineralization after 21 days. In vivo tests showed that the alveolar bone height was clearly greater in the ICA+CNF@H (NIR) group compared to the periodontitis group. Discussion: In conclusion, ICA+CNF@H under NIR irradiation achieved a synergistic effect of antibacterial, anti-inflammatory, reduction of reactive oxygen species and promotion of osteogenesis, offering a novel approach for treating periodontitis.
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Affiliation(s)
| | | | | | | | | | | | | | - Xifan Mei
- *Correspondence: Xifan Mei, ; Xiuqiu Gao,
| | - Xiuqiu Gao
- *Correspondence: Xifan Mei, ; Xiuqiu Gao,
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21
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Lin S, Xu C, Yin X, Tian H, Mei X. Aging and TNF induce premature senescence of astrocytes after spinal cord injury via regulating YAP expression. Int Immunopharmacol 2023; 120:110276. [PMID: 37182448 DOI: 10.1016/j.intimp.2023.110276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/29/2023] [Accepted: 04/30/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND Spinal cord injury (SCI) causes chronic functional impairment in patients. In addition, SCI is tormenting more and more older adults, and those who suffer from SCI often have shorter lifespans. Previous studies have confirmed that overexpression of p75 leads to neuroinflammation and motor dysfunction following spinal cord injury in adult mice. METHODS As TNF-α is upregulated after SCI, targeting TNF-mediated inflammation may be an attractive option to combat trauma, paving the way for new therapeutic insight. In this study, we evaluated behavioral testing, phenotype of senescent cells, reactive oxygen species (ROS), inflammation and mitochondrial damage in adult (2-month-old) and aged (20-month-old) female wild-type (WT) and p75 knockout (KO) mice. RESULTS Herein, we hypothesized that aged mice were more prone to death after SCI, but p75 deletion could promote motor/sensory function recovery and improve survival in both adult and aged mice. Further exploration of the underlying mechanism revealed that the expression of p-YAP was reduced in vivo and in vitro, and p75 deletion partially rescued aging-induced astrocytes senescence. CONCLUSION Taken together, our study have identified an unrecognized function of the p75-YAP pathway on preventing astrocytic aging in vitro and in vivo, which may provide further insights and new targets into slowing spinal cord aging and improving dysfunctional remission and longevity.
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Affiliation(s)
- Sen Lin
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, China
| | - Chang Xu
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, China
| | - Xuechen Yin
- School of Basic Medicine, Jinzhou Medical University, Jinzhou 121000, China
| | - He Tian
- School of Basic Medicine, Jinzhou Medical University, Jinzhou 121000, China.
| | - Xifan Mei
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, China.
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22
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Bao M, Qin N, E Y, Qiao H, Zhuang P, Mei X, Li D. Investigation of bacteria and detergent residues on undergraduate students' dinner plates in dormitories during university lockdown. Biochem Mol Biol Educ 2023; 51:329-331. [PMID: 36794664 DOI: 10.1002/bmb.21718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 12/20/2022] [Accepted: 02/06/2023] [Indexed: 05/15/2023]
Abstract
The COVID-19 outbreak has disrupted undergraduate students' experiments since their access to the laboratory is limited. To address this problem, the bacteria and detergent residues on undergraduate students' dinner plates were investigated by the students in the dormitories. Five different types of dinner plates from 50 students were collected, which were cleaned with detergent and water in the same way and naturally dried. Then, Escherichia coli (E. coli) test papers and sodium dodecyl sulfonate test kits were used to understand the bacteria and detergent residuals. Commonly available equipment such as a yogurt maker was used for bacterial culture; detergent analyses were performed using centrifugation tubes. Effective sterilization methods and safety protection were achieved by dormitory available methods. According to the investigated results, the students found the differences in bacteria and detergent residuals between different dinner plates and made suitable choices for the future.
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Affiliation(s)
- Mengfan Bao
- College of Pharmacy, Jinzhou Medical University, China
| | - Ningyi Qin
- College of Pharmacy, Jinzhou Medical University, China
| | - Yifeng E
- College of Pharmacy, Jinzhou Medical University, China
| | - Haixia Qiao
- College of Pharmacy, Jinzhou Medical University, China
| | | | - Xifan Mei
- College of Pharmacy, Jinzhou Medical University, China
| | - Dan Li
- College of Pharmacy, Jinzhou Medical University, China
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23
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Jiang H, Xu Q, Wang X, Shi L, Yang X, Sun J, Mei X. Preparation of Antibacterial, Arginine-Modified Ag Nanoclusters in the Hydrogel Used for Promoting Diabetic, Infected Wound Healing. ACS Omega 2023; 8:12653-12663. [PMID: 37065086 PMCID: PMC10099449 DOI: 10.1021/acsomega.2c07266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 03/07/2023] [Indexed: 06/19/2023]
Abstract
Diabetic foot ulcers with complex healing wounds accompanied by bacterial infection are considered a significant clinical problem which are made worse by the lack of effective treatments. Traditional antibiotics and dressings have failed to address wound infection and healing, and multifunctional combination therapies are attractive for treating chronic wounds. In this study, arginine (Arg) was loaded onto the surface of silver nanoclusters and encapsulated in a hydrogel to achieve antibacterial, anti-inflammatory, angiogenic, and collagen deposition functions through the slow release of Arg combined with silver nanoclusters. In vitro studies indicated that Arg-Ag@H composites inhibited methicillin-resistant Staphylococcus aureus and Escherichia coli by 94 and 97%, respectively. The inhibition of bacterial biofilms reached 85%, and the migration ability of human venous endothelial cells (HUVECs) increased by 50%. In vitro studies showed that Arg-Ag@H composites increased the healing area of wounds by 26% and resulted in a 98% skin wound-healing rate. Safety studies confirmed the excellent biocompatibility of Arg-Ag@H. The results suggest that Arg-Ag@H offers new possibilities for treating chronic diabetic wounds.
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Affiliation(s)
- Housen Jiang
- Dalian
Medical University, Dalian 116044, Liaoning, China
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Qin Xu
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Xiaolin Wang
- Department
of Pathology, Weifang Hospital of Traditional
Chinese Medicine, Weifang 261042, Shandong, China
| | - Lin Shi
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Xuedong Yang
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Jianmin Sun
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Xifan Mei
- Department
of Orthopedics, Third Affiliated Hospital
of Jinzhou Medical University, Jinzhou 121000, China
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24
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Shi T, Feng Y, Wang C, Liu H, Li T, Liu WD, Zhou HB, Aini A, Mei X, Guo XW, Jiang MS, Gao F. [Clinical and endoscopic characteristics of adult celiac disease]. Zhonghua Nei Ke Za Zhi 2023; 62:35-42. [PMID: 36631035 DOI: 10.3760/cma.j.cn112138-20220220-00130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Objective: The study aimed to analyze the clinical and endoscopic characteristics of adult celiac disease (CD) to provide a scientific basis for more effective CD diagnosis and treatment. Methods: In this cross-sectional study, the clinical and endoscopic data of 96 adult CD patients treated in the Department of Gastroenterology of the People's Hospital of Xinjiang Uygur Autonomous Region from March 2016 to December 2021 were retrospectively collected and analyzed. Results: A total of 96 CD patients were diagnosed, including 33 men and 63 women. The average age was 47±14 years (range, 18-81 years). The disease occurred mainly in the age group of 31-60 years. The median course of the disease was 2.0 (0.2-40.0) years. There were 41 (42.7%) classical and 55 (57.3%) non-classical CD patients. All patients with classical CD showed chronic diarrhea, often accompanied by abdominal pain (46.3%, 19/41), abdominal distension (17.1%, 7/41), anemia (65.9%, 27/41), and chronic fatigue (48.8%, 20/41). The main manifestations of non-classical CD were chronic abdominal pain (58.2%, 32/55), abdominal distension (32.7%, 18/55), anemia (40.0%, 22/55), and osteopenia/osteoporosis (38.2%, 21/55). Compared with non-classical CD, anemia developed more frequently in classical CD, and the difference was statistically significant (P = 0.012). The incidence of complications in CD patients was 36.5% (35/96), and the main complications were thyroid disease (19.8%, 19/96), connective tissue disease (6.2%, 6/96), and kidney disease (6.2%, 6/96). There was no significant difference between classical and non-classical CD (P>0.05). The frequency of endoscopic manifestations in CD patients was 84.4% (81/96). Duodenal bulb endoscopy showed nodular changes (72.9%, 70/96), grooved changes (10.4%, 10/96), and focal villous atrophy (9.4%, 9/96). The main manifestations of descending endoscopy were the decrease, flattening, or disappearance of duodenal folds (43.8%, 42/96), scallop-like changes (38.5%, 37/96), and nodular changes (34.4%, 33/96). Conclusions: Adult CD patients are mostly female. CD occurred mainly in the age group of 31-60 years. The clinical manifestations were mainly those of non-classical CD. Some patients often had other autoimmune diseases. Patients with characteristic endoscopic manifestations should be warned about the possibility of developing CD. Clinicians should strengthen the understanding of CD and reduce the related rates of missed diagnosis.
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Affiliation(s)
- T Shi
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China Xinjiang Medical University, Urumqi 830011, China
| | - Y Feng
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - C Wang
- Department of Pathology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China
| | - H Liu
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - T Li
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - W D Liu
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - H B Zhou
- Department of Gastroenterology, People's Hospital of Kizilsu Kirgiz Autonomous Prefecture, Kizilsu Kirgiz Autonomous Prefecture 845350, China
| | - Abudureyimu Aini
- Department of Gastroenterology, Kashgar Second People's Hospital, Kashgar 844099, China
| | - X Mei
- Department of Gastroenterology, Altay Regional People's Hospital, Altay 836500, China
| | - X W Guo
- Department of Gastroenterology, Aksu People's Hospital, Aksu 843099, China
| | - M S Jiang
- Department of Gastroenterology, Turpan People's Hospital, Turpan 838099, China
| | - F Gao
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
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25
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Guo Y, Zhang P, Zhao H, Xu C, Lin S, Mei X, Tian H. Melatonin promotes microglia toward anti-inflammatory phenotype after spinal cord injury. Int Immunopharmacol 2023; 114:109599. [PMID: 36538849 DOI: 10.1016/j.intimp.2022.109599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/25/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Microglia, immune cells in the central nervous system (CNS), mediate inflammatory responses and provide support to the microenvironment. Neurotoxic microglia predominantly locate in the injured spinal cord that delay spinal cord injury (SCI) repair. We previously found that melatonin could suppress SCI-induced neuronal inflammatory activation. However, the effect of melatonin in microglia responses remains unclear. In this study, isolated primary microglia and neurons were stimulated with lipopolysaccharide (LPS) and interferon-γ (IFN-γ) or melatonin-containing medium. We found that melatonin supported the beneficial polarization from pro-inflammatory to anti-inflammation, downrehulated ROS activity, and recovered mitochondrial metabolism in vitro and in vivo. Furthermore, melatonin downregulated pro-inflammatory-related mRNA levels. These results suggested that melatonin may be therapeutic potential for neuroinflammation-related neurological disorders, such as SCI.
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Affiliation(s)
- Yue Guo
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China; Key Laboratory of medical tissue engineering, Jinzhou Medical University, Jinzhou, P. R. China
| | - Peng Zhang
- Key Laboratory of medical tissue engineering, Jinzhou Medical University, Jinzhou, P. R. China
| | - Haosen Zhao
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Chang Xu
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Sen Lin
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China; Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
| | - Xifan Mei
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China; Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
| | - He Tian
- School of Basic Medicine, Jinzhou Medical University, Jinzhou, China.
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26
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Li D, Sun C, Mei X, Yang L. Achieving broad availability of SARS-CoV-2 detections via smartphone-based analysis. Trends Analyt Chem 2023; 158:116878. [PMID: 36506266 PMCID: PMC9728015 DOI: 10.1016/j.trac.2022.116878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
With the development of COVID-19, widely available tests are in great demand. Naked-eye SARS-CoV-2 test kits have recently been developed as home tests, but their sensitivity and accuracy are sometimes limited. Smartphones can convert various signals into digital information, potentially improving the sensitivity and accuracy of these home tests. Herein, we summarize smartphone-based detections for SARS-CoV-2. Optical detections of non-nucleic acids using various sensors and portable imaging systems, as well as nucleic acid analyses based on LAMP, CRISP, CATCH, and biosensors are discussed. Furthermore, different electrochemical detections were compared. We show results obtained using relatively complex equipment, complicated programming procedures, or custom smartphone apps, and describe methods for obtaining information with only simple setups and free software on smartphones. Then, the combined costs of typical smartphone-based detections are evaluated. Finally, the prospect of improving smartphone-based strategies to achieve broad availability of SARS-CoV-2 detection is proposed.
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Affiliation(s)
- Dan Li
- Jinzhou Medical University, Jinzhou, China
| | - Cai Sun
- AECC Shenyang Liming Aero-Engine Co, Ltd., Shenyang, China
| | - Xifan Mei
- Jinzhou Medical University, Jinzhou, China,Corresponding author
| | - Liqun Yang
- NHC Key Laboratory of Reproductive Health and Medical Genetics (China Medical University), Liaoning Research Institute of Family Planning (The Affiliated Reproductive Hospital of China Medical University), Shenyang, China,Corresponding author
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27
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Xie DM, Sun C, Tu Q, Li S, Zhang Y, Mei X, Li Y. Modified black phosphorus quantum dots promotes spinal cord injury repair by targeting the AKT signaling pathway. J Tissue Eng 2023; 14:20417314231180033. [PMID: 37333896 PMCID: PMC10272649 DOI: 10.1177/20417314231180033] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/19/2023] [Indexed: 06/20/2023] Open
Abstract
Spinal cord injury (SCI) is a serious refractory disease of the central nervous system (CNS), which mostly caused by high-energy trauma. Existing interventions such as hormone shock and surgery are insufficient options, which relate to the secondary inflammation and neuronal dysfunction. Hydrogel with neuron-protective behaviors attracts tremendous attention, and black phosphorus quantum dots (BPQDs) encapsulating with Epigallocatechin-3-gallate (EGCG) hydrogels (E@BP) is designed for inflammatory modulation and SCI treatment in this study. E@BP displays good stability, biocompatibility and safety profiles. E@BP incubation alleviates lipopolysaccharide (LPS)-induced inflammation of primary neurons and enhances neuronal regeneration in vitro. Furthermore, E@BP reconstructs structural versus functional integrity of spinal cord tracts, which promotes recovery of motor neuron function in SCI rats after transplantation. Importantly, E@BP restarts the cell cycle and induces nerve regeneration. Moreover, E@BP diminishes local inflammation of SCI tissues, characterized by reducing accumulation of astrocyte, microglia, macrophages, and oligodendrocytes. Indeed, a common underlying mechanism of E@BP regulating neural regenerative and inflammatory responses is to promote the phosphorylation of key proteins related to AKT signaling pathway. Together, E@BP probably repairs SCI by reducing inflammation and promoting neuronal regeneration via the AKT signaling pathway.
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Affiliation(s)
- Dong-Mei Xie
- Department of Cardiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chuanwei Sun
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
| | - Qingqiang Tu
- Zhongshan Medical College, Sun Yat-sen University, Guangzhou, China
| | - Suyi Li
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
- Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yu Zhang
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
- Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xifan Mei
- Department of Orthopedics, The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
| | - Yuanlong Li
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
- Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
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Zhuang P, Li K, Li D, Qiao H, E Y, Wang M, Sun J, Mei X, Li D. Correction: Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity. Nanoscale Res Lett 2022; 17:125. [PMID: 36525142 PMCID: PMC9758259 DOI: 10.1186/s11671-022-03751-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Pengfei Zhuang
- Jinzhou Medical University, Jinzhou, China
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China
- Department of Pharmacology, Jinzhou Medical University, Jinzhou, China
| | - Kuo Li
- Jinzhou Medical University, Jinzhou, China
| | - Daoyong Li
- Jinzhou Medical University, Jinzhou, China
| | - Haixia Qiao
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China
| | - Yifeng E
- Department of Pharmacology, Jinzhou Medical University, Jinzhou, China
| | - Mingqun Wang
- Department of Basic Medical Science, Jinzhou Medical University, Jinzhou, China
| | | | - Xifan Mei
- Jinzhou Medical University, Jinzhou, China.
| | - Dan Li
- Jinzhou Medical University, Jinzhou, China.
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China.
- Department of Pharmacology, Jinzhou Medical University, Jinzhou, China.
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Qin N, Liu Z, Zhao L, Bao M, Mei X, Li D. Promising instrument-free detections of various analytes using smartphones with Spotxel ® Reader. ANAL SCI 2022; 39:139-148. [PMID: 36460855 PMCID: PMC9718457 DOI: 10.1007/s44211-022-00216-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 11/08/2022] [Indexed: 12/05/2022]
Abstract
In consideration of the problems related to food safety, environmental pollution, and the spread of infected diseases nowadays, we urgently need testing methods that can be easily performed by common people. Smartphone-based detections are promising for general applications. However, some of these analytical strategies require a combination of accessories and instruments, such as portable electrochemical workstations, mini multi-mode microplate readers, and complex temperature control devices, etc., which are small but still expensive. Herein, we comprehensively introduce a free app (Spotxel® Reader) that can provide accurate data analysis for microplate or parallel-format test sensors without an instrument. By simulating the optical signal of the test samples through a smartphone, the sensing results can be obtained for free. We discuss the detection strategies involved in the reported smartphone-based analyses using Spotxel® Reader. Prospects for the development of this free app for future detection applications are presented. This review aims to popularize free analysis software, so that ordinary people may realize convenient tests.
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Affiliation(s)
- Ningyi Qin
- Department of Pharmacy, Jinzhou Medical University, Jinzhou, 121000 China
| | - Zirui Liu
- Liaoning Provincial Key Laboratory of Medical Testing, Jinzhou Medical University, Jinzhou, 121001 China
| | - Lanbin Zhao
- The Third Affiliated Hospital, Jinzhou Medical University, Jinzhou, People’s Republic of China
| | - Mengfan Bao
- Department of Pharmacy, Jinzhou Medical University, Jinzhou, 121000 China
| | - Xifan Mei
- Liaoning Provincial Key Laboratory of Medical Testing, Jinzhou Medical University, Jinzhou, 121001 China ,The Third Affiliated Hospital, Jinzhou Medical University, Jinzhou, People’s Republic of China
| | - Dan Li
- Department of Pharmacy, Jinzhou Medical University, Jinzhou, 121000 China
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Han B, Jiao S, Chen J, Wang Z, Zhao Y, Zhang G, Chen G, Zhou M, Zhou J, Du Y, Wu L, Xu Z, Mei X, Zhang W, He J, Cui J, Zhang Z, Luo H, Liu W, Sun Y. 59MO Final analysis of AK105-302: A randomized, double-blind, placebo-controlled, phase III trial of penpulimab plus carboplatin and paclitaxel as first-line treatment for advanced squamous NSCLC. Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Li Y, Zou Z, An J, Wu Q, Tong L, Mei X, Tian H, Wu C. Chitosan-modified hollow manganese dioxide nanoparticles loaded with resveratrol for the treatment of spinal cord injury. Drug Deliv 2022; 29:2498-2512. [PMID: 35903814 PMCID: PMC9477490 DOI: 10.1080/10717544.2022.2104957] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Spinal cord injury (SCI) is a serious central nervous system disease, and secondary injury, including oxidative stress, the inflammatory response and accompanying neuronal apoptosis, will aggravate the condition. Due to the existence of the blood–spinal cord barrier (BSCB), the existing drugs for SCI treatment are difficulty to reach the injury site and thus their efficacy is limited. In this study, we designed chitosan-modified hollow manganese dioxide nanoparticles (CM) for the delivery of resveratrol to help it pass through the BSCB. Resveratrol (Res), a poorly soluble drug, was adsorbed into CM with a particle size of approximately 130 nm via the adsorption method, and the drug loading reached 21.39 ± 2.53%. In vitro dissolution experiment, the Res release of the loaded sample (CMR) showed slowly release behavior and reached about 87% at 36 h. In vitro at the cellular level and in vivo at the animal level experiments demonstrated that CMR could alleviate significantly oxidative stress by reducing level of reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), and increasing glutathione peroxidase (GSH) level. Additionally, immunofluorescence (iNOS, IL-1β, and Cl caspase-3) and western blot (iNOS, cox-2, IL-1β, IL-10, Cl caspase-3, bax, and bcl-2) were used to detect the expression of related factors, which verified that CMR could also reduce inflammation and neuronal apoptosis. These results indicated that CM, as a potential central nervous system drug delivery material, was suitable for SCI treatment.
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Affiliation(s)
- Yingqiao Li
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Zhiru Zou
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Jinyu An
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Qian Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Le Tong
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Xifan Mei
- Department of Orthopedics, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China.,Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - He Tian
- Department of Histology and Embryology, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, China
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Li D, Zhou Z, Sun J, Mei X. Prospects of NIR fluorescent nanosensors for green detection of SARS-CoV-2. Sens Actuators B Chem 2022; 362:131764. [PMID: 35370362 PMCID: PMC8964475 DOI: 10.1016/j.snb.2022.131764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 02/22/2022] [Accepted: 03/21/2022] [Indexed: 05/02/2023]
Abstract
The pandemic of the novel coronavirus disease 2019 (COVID-19) is continuously causing hazards for the world. Effective detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can relieve the impact, but various toxic chemicals are also released into the environment. Fluorescence sensors offer a facile analytical strategy. During fluorescence sensing, biological samples such as tissues and body fluids have autofluorescence, giving false-positive/negative results because of the interferences. Fluorescence near-infrared (NIR) nanosensors can be designed from low-toxic materials with insignificant background signals. Although this research is still in its infancy, further developments in this field have the potential for sustainable detection of SARS-CoV-2. Herein, we summarize the reported NIR fluorescent nanosensors with the potential to detect SARS-CoV-2. The green synthesis of NIR fluorescent nanomaterials, environmentally compatible sensing strategies, and possible methods to reduce the testing frequencies are discussed. Further optimization strategies for developing NIR fluorescent nanosensors to facilitate greener diagnostics of SARS-CoV-2 for pandemic control are proposed.
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Key Words
- 5 G, the fifth generation technology standard for broadband cellular networks
- ACE2, Angiotensin-converting enzyme 2
- AIE, aggregation-induced emission
- AIE810NP, an aggregation-induced emission (AIE) nanoparticle (λem = 810 nm)
- AIEgens, AIE luminogens
- ASOs, antisense oligonucleotides
- AuNP, Gold nanoparticle
- CF647, a cyanine-based far-red fluorescent dye
- COVID-19, The pandemic of the novel coronavirus disease 2019
- CP-MNB, capture probe-conjugated magnetic bead particle
- CdS, core/shell lead sulfide/cadmium sulfide
- CoPhMoRe, corona phase molecular recognition
- Cy7Cl, a cationic cyanine dye
- DCNPs, Down-conversion nanoparticles
- DPV, Differential pulse voltammetry
- DSNP, down shifting nanoparticles
- DSNP@MY-1057-GPC-3, active targeting antibody glypican-3 (GPC-3) was conjugated with DSNP@MY-1057
- E, envelope
- EB-NS, prepared by the layered pigment CaCuSi4O10 (Egyptian Blue, EB) via ball milling and facile tip sonication into NIR fluorescent nanosheets
- ENMs, electrospun nanofibrous membranes
- Environmental-friendly
- FLU, an infectious disease caused by influenza viruses
- FRET, fluorescence resonance energy transfer
- Green synthesis
- HA1, hemagglutinin subunit.
- HA1., hemagglutinin subunit
- HAS, serum albumin
- HCC, hepatocellular carcinoma
- IONPs, iron oxide nanoparticles.
- IONPs., iron oxide nanoparticles
- IgG A, IgG aggregation
- IgG, immunoglobulin G
- IgM, immunoglobulin M
- LED, light emitting diode
- LICOR, IRDye-800CW
- Low-toxic
- M, membrane
- MCU, microcontroller unit
- MERS, Middle East respiratory syndrome coronavirus
- N protein, nucleocapsid protein
- N, nucleocapsid
- NIR
- NIR, Near-Infrared
- NIR775, an H2S-inert fluorophore
- Nanosensor
- P, FITC-labelled GzmB substrate peptides
- PBS, Phosphate-buffered saline
- PCR, Polymerase Chain Reaction
- PEG, branched by Polyethylene glycol
- PEG1000 PE, 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)− 1000]
- PEG2000 PE, (1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)− 2000);
- POC, point-of-care
- PS, polystyrene
- Pb-Ag2S ODs, lead doped Ag2S quantum dots
- QDs, quantum dots
- QY, quantum yield
- R, R represents a common recognition element for the target
- RCA, rolling circle amplification
- RNA, ribonucleic acid
- S RBD, SARS-CoV-2 spike receptor-binding domain
- S protein, spike protein
- S, spike
- SAM, self-assembled monolayer
- SARS-CoV-2
- SARS-CoV-2, Severe acute respiratory syndrome coronavirus
- SPNs, semiconducting polymer nanoparticles.
- SPNs., semiconducting polymer nanoparticles
- SWCNTs, single-walled carbon nanotubes
- Si-RP, silica-reporter probe
- VIS, visible
- VTM, viral transport medium
- pGOLD, plasmonic gold
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Affiliation(s)
- Dan Li
- Department of Basic Science, Jinzhou Medical University, 40 Songpo Road, Jinzhou 121001, China
| | - Zipeng Zhou
- Department of Key Laboratory of Medical Tissue Engineering of Liaoning, Jinzhou Medical University, 40 Songpo Road, Jinzhou 121001, China
| | - Jiachen Sun
- Department of Key Laboratory of Medical Tissue Engineering of Liaoning, Jinzhou Medical University, 40 Songpo Road, Jinzhou 121001, China
| | - Xifan Mei
- Department of Key Laboratory of Medical Tissue Engineering of Liaoning, Jinzhou Medical University, 40 Songpo Road, Jinzhou 121001, China
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Lin S, Zhou Z, Xu C, Zeng F, Shi Z, Sun J, Mei X, Liu C, Li D. Cytokine Regulation and Fast Inflammation Resolution in Early Rheumatoid Arthritis by Cerium-Modified Gold Nanoclusters. ACS Appl Mater Interfaces 2022; 14:18053-18063. [PMID: 35417127 DOI: 10.1021/acsami.1c22831] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Rheumatoid arthritis (RA) is an incurable chronic disorder that may induce autoinflammation and serious pain in the joints. Early diagnosis and treatment are important for RA prognosis. However, there is a lack of effective and objective diagnostic approaches. Levels of several immunity cytokines were found to change for patients with early RA, including IL-6, TNF-α, and IL-17 in serum. We assumed a combined change of these cytokines could predict early RA, and a total of 37 outpatients were found. After these patients with early symptoms had been followed for more than one year, 32 clinical cases of RA were diagnosed. The accuracy rate of the current method is >86%. We assumed the symptom relief could be achieved by regulating these cytokines and serum lipid-associated indicators. Thereafter, (R)-dihydrolipoic acid (R-DHLA)-stabilized gold nanoclusters (AuNCs) without (R-DHLA-AuNCs) and with cerium modification (R-DHLA-AuNCs-Ce) were employed for treatment of the RA rat model in vitro and in vivo. R-DHLA-AuNCs-Ce exhibited extraordinary reactive oxygen species-scavenging and anti-inflammation effects by regulating macrophage polarization, which was found to be more effective than methotrexate. The inflammation response of the joint microenvironment was also reduced with an exciting efficiency. By complex analysis of the pro-inflammatory cytokines and activity period indicators in vivo and in vitro, we concluded that macrophage-mediated inflammation exacerbated autoimmunity, which fully relieved the symptoms after administration of R-DHLA-AuNCs-Ce to RA rats.
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Affiliation(s)
- Sen Lin
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121004, P. R. China
| | - Zipeng Zhou
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121004, P. R. China
| | - Chang Xu
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121004, P. R. China
| | - Fanzhuo Zeng
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121004, P. R. China
| | - Zuqiang Shi
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121004, P. R. China
| | - Jiachen Sun
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121004, P. R. China
| | - Xifan Mei
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121004, P. R. China
| | - Chang Liu
- Department of Endocrinology, Jinzhou Medical University, Jinzhou 121004, P. R. China
| | - Dan Li
- School of Pharmaceutical Science, Jinzhou Medical University, Jinzhou 121004, P. R. China
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Zhao X, Chang L, Hu Y, Xu S, Liang Z, Ren X, Mei X, Chen Z. Preparation of Photocatalytic and Antibacterial MOF Nanozyme Used for Infected Diabetic Wound Healing. ACS Appl Mater Interfaces 2022; 14:18194-18208. [PMID: 35412791 DOI: 10.1021/acsami.2c03001] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bacterial infection has been a considerable obstacle for diabetic wound healing. A multifunctional nanoplatform used as nanozyme for bacterial infected diabetic wound is extremely attractive. Therefore, gold nanoclusters modified zirconium-based porphyrin metal-organic frameworks (Au NCs@PCN) were constructed by an in situ growth method. Through SEM, TEM, and EDS mapping, the surface of ellipsoid-shaped particles around 190 nm was observed to be evenly interspersed with 5-8 nm gold nanoclusters. Notably, Au NCs@PCN exhibits excellent performance in exciting ROS generation and photothermal effects. Under near-infrared (NIR) laser irradiation, Au NCs@PCN can be heated to 56.2 °C and produce ROS, showing an effective killing effect on bacteria. Antibacterial studies showed that Au NCs@PCN inhibited MRSA and Ampr E. coli by destroying membrane structure and inducing protein leakage up to 95.3% and 90.6%, respectively. Animal experiments showed that Au NCs@PCN treated diabetic rats had reduced wound coverage to 2.7% within 21 days. The immunoblot analysis showed that proangiogenic and proepithelial cell proliferation factors were expressed significantly up-regulated. These results prove that Au NCs@PCN with photocatalytic and nanozyme activity has a broad application prospect for promoting diabetic infected wound healing.
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Affiliation(s)
- Xingjun Zhao
- Jinzhou Medical University, Jinzhou, 121001 Liaoning, China
| | - Linna Chang
- Jinzhou Medical University, Jinzhou, 121001 Liaoning, China
| | - Yanan Hu
- Jinzhou Medical University, Jinzhou, 121001 Liaoning, China
| | - Shibo Xu
- Jinzhou Medical University, Jinzhou, 121001 Liaoning, China
| | - Zepeng Liang
- Jinzhou Medical University, Jinzhou, 121001 Liaoning, China
| | - Xiuli Ren
- Jinzhou Medical University, Jinzhou, 121001 Liaoning, China
| | - Xifan Mei
- Jinzhou Medical University, Jinzhou, 121001 Liaoning, China
| | - Zhenhua Chen
- Jinzhou Medical University, Jinzhou, 121001 Liaoning, China
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Gao ZZ, Pan YJ, Ma J, Li HL, Mei X, Song YG. [Study on the difference of curative effect of conventional mercury displacement treatment on mercury in brain and kidney]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:255-259. [PMID: 35545590 DOI: 10.3760/cma.j.cn121094-20210202-00073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the expulsion effect of sodium dimercaptopropanesulfonate (DMPS) on mercury in different organs of mercury poisoning and the therapeutic effect of glutathione (GSH) combined with antioxidant therapy on mercury poisoning. Methods: In February 2019, 50 SPF male SD rats were randomly divided into 5 groups, 10 rats in each group: A (saline negative control group) , B (HgCL2 positive control group) , treatment group (C: intramuscular injection of DMPS 15 mg/kg treatment, D: intramuscular injection of DMPS30 mg/kg treatment, E: intramuscular injection of DMPS 15 mg/kg and intraperitoneal injection of GSH200 mg/kg treatment) . Rats in group B, C, D and E were subcutaneously injected with mercury chloride solution (1 mg/kg) to establish a rat model of subacute mercury poisoning kidney injury. Rats in group A were subcutaneously injected with normal saline. After the establishment of the model, rats in the treatment group were injected with DMPS and GSH. Rats in group A and group B were injected with normal saline. At 21 d (treatment 7 d) and 28 d (treatment 14 d) after exposure, urine and blood samples of 5 rats in each group were collected. Blood biochemistry, urine mercury, urine microalbumin and mercury content in renal cortex, cerebral cortex and cerebellum were detected. Results: After exposure to mercury, the contents of mercury in renal cortex, cerebrum and cerebellum of rats in group B, C, D and E increased, and urine microalbumin increased. Pathology showed renal tubular injury and renal interstitial inflammation. Compared with group B, urinary mercury and renal cortex mercury in group C, D and E decreased rapidly after DMPS treatment, and there was no significant decrease in mercury levels in cerebellum and cerebral cortex of rats, accompanied by transient increase in urinary albumin after DMPS treatment (P<0.05) ; the renal interstitial inflammation in group E was improved after GSH treatment. There was a positive correlation between urinary mercury and the contents of mercury in renal cortex, cerebral cortex and cerebellum (r=0.61, 0.47, 0.48, P<0.05) . Conclusion: DMPS mercury expulsion treatment can significantly reduce the level of metal mercury in the kidney, and there is no significant change in the level of metal mercury in the cortex and cerebellum.
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Affiliation(s)
- Z Z Gao
- Emergency medical research center of Beijing Chaoyang Hospital Affiliated to Capital Medical University; Beijing Key Laboratory of Cardiopulmonary Resuscitation, Beijing 100020, China
| | - Y J Pan
- Department of Occupational Disease and Poisoning Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - J Ma
- Department of Occupational Disease and Poisoning Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - H L Li
- Department of Occupational Disease and Poisoning Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - X Mei
- Emergency medical research center of Beijing Chaoyang Hospital Affiliated to Capital Medical University; Beijing Key Laboratory of Cardiopulmonary Resuscitation, Beijing 100020, China
| | - Y G Song
- Department of Occupational Disease and Poisoning Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
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Xu S, Chang L, Hu Y, Zhao X, Huang S, Chen Z, Ren X, Mei X. Correction to: Tea polyphenol modified, photothermal responsive and ROS generative black phosphorus quantum dots as nanoplatforms for promoting MRSA infected wounds healing in diabetic rats. J Nanobiotechnology 2022; 20:192. [PMID: 35439993 PMCID: PMC9019991 DOI: 10.1186/s12951-022-01408-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Shibo Xu
- Jinzhou Medical University, JinzhouLiaoning, 121001, China
| | - Linna Chang
- Jinzhou Medical University, JinzhouLiaoning, 121001, China
| | - Yanan Hu
- Jinzhou Medical University, JinzhouLiaoning, 121001, China
| | - Xingjun Zhao
- Jinzhou Medical University, JinzhouLiaoning, 121001, China
| | | | - Zhenhua Chen
- Jinzhou Medical University, JinzhouLiaoning, 121001, China.
| | - Xiuli Ren
- Jinzhou Medical University, JinzhouLiaoning, 121001, China.
| | - Xifan Mei
- Jinzhou Medical University, JinzhouLiaoning, 121001, China.
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Yang Y, Wang Z, Fang J, Yu Q, Han B, Cang S, Chen G, Mei X, Yang Z, Stefaniak V, Lin Y, Wang S, Zhang W, Sun L, Zhang Y. 4MO Final overall survival (OS) data of sintilimab plus pemetrexed (SPP) and platinum as first-line (1L) treatment for locally advanced or metastatic nonsquamous NSCLC (AMnsqNSCLC) in the phase III ORIENT-11 study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Li Y, Tu Q, Xie D, Chen S, Gao K, Xu X, Zhang Z, Mei X. Triamcinolone acetonide-loaded nanoparticles encapsulated by CD90 + MCSs-derived microvesicles drive anti-inflammatory properties and promote cartilage regeneration after osteoarthritis. J Nanobiotechnology 2022; 20:150. [PMID: 35305656 PMCID: PMC8934450 DOI: 10.1186/s12951-022-01367-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/10/2022] [Indexed: 12/25/2022] Open
Abstract
Background Osteoarthritis (OA) is a highly prevalent human degenerative joint disorder that has long plagued patients. Glucocorticoid injection into the intra-articular (IA) cavity provides potential short-term analgesia and anti-inflammatory effects, but long-term IA injections cause loss of cartilage. Synovial mesenchymal stem cells (MSCs) reportedly promote cartilage proliferation and increase cartilage content. Methods CD90+ MCS-derived micro-vesicle (CD90@MV)-coated nanoparticle (CD90@NP) was developed. CD90+ MCSs were extracted from human synovial tissue. Cytochalasin B (CB) relaxed the interaction between the cytoskeleton and the cell membranes of the CD90+ MCSs, stimulating CD90@MV secretion. Poly (lactic-co-glycolic acid) (PLGA) nanoparticle was coated with CD90@MV, and a model glucocorticoid, triamcinolone acetonide (TA), was encapsulated in the CD90@NP (T-CD90@NP). The chondroprotective effect of T-CD90@NP was validated in rabbit and rat OA models. Results The CD90@MV membrane proteins were similar to that of CD90+ MCSs, indicating that CD90@MV bio-activity was similar to the cartilage proliferation-inducing CD90+ MCSs. CD90@NP binding to injured primary cartilage cells was significantly stronger than to erythrocyte membrane-coated nanoparticles (RNP). In the rabbit OA model, the long-term IA treatment with T-CD90@NP showed significantly enhanced repair of damaged cartilage compared to TA and CD90+ MCS treatments. In the rat OA model, the short-term IA treatment with T-CD90@NP showed effective anti-inflammatory ability similar to that of TA treatment. Moreover, the long-term IA treatment with T-CD90@NP induced cartilage to restart the cell cycle and reduced cartilage apoptosis. T-CD90@NP promoted the regeneration of chondrocytes, reduced apoptosis via the FOXO pathway, and influenced type 2 macrophage polarization to regulate inflammation through IL-10. Conclusion This study confirmed that T-CD90@NP promoted chondrocyte proliferation and anti-inflammation, improving the effects of a clinical glucocorticoid treatment plan. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01367-z. Long-term injection of glucocorticoids in the knee joint cavity promotes loss of cartilage content. CD90-positive stem cell vesicles encapsulated with Triamcinolone acetonide-loaded nanoparticles have good materials. T-CD90@NPs drive anti-inflammatory properties and promote cartilage regeneration after osteoarthritis. T-CD90@NPs regulate the polarization of type 2 macrophages to resist inflammation. T-CD90@NPs promote chondrocyte regeneration through the FOXO signaling pathway.
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Affiliation(s)
- Yuanlong Li
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Qingqiang Tu
- Department of Orthopedics, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Dongmei Xie
- The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shurui Chen
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Kai Gao
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xiaochun Xu
- The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ziji Zhang
- Department of Orthopedics, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
| | - Xifan Mei
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
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Li K, Li D, Li CH, Zhuang P, Dai C, Hu X, Wang D, Liu Y, Mei X, Rotello VM. Retraction: Efficient in vivo wound healing using noble metal nanoclusters. Nanoscale 2022; 14:3972. [PMID: 35212352 PMCID: PMC8921878 DOI: 10.1039/d2nr90041f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Retraction of 'Efficient in vivo wound healing using noble metal nanoclusters' by Kuo Li et al. Nanoscale, 2021, 13, 6531-6537. DOI: 10.1039/D0NR07176E.
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Affiliation(s)
- Kuo Li
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, 40 Songpo Road, Jinzhou, China.
| | - Dan Li
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, 40 Songpo Road, Jinzhou, China.
| | - Cheng-Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA.
| | - Pengfei Zhuang
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, 40 Songpo Road, Jinzhou, China.
| | - Chunmei Dai
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, 40 Songpo Road, Jinzhou, China.
| | - Xiangka Hu
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, 40 Songpo Road, Jinzhou, China.
| | - Dahao Wang
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, 40 Songpo Road, Jinzhou, China.
| | - Yuanye Liu
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, 40 Songpo Road, Jinzhou, China.
| | - Xifan Mei
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, 40 Songpo Road, Jinzhou, China.
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA.
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Ren X, Hu Y, Chang L, Xu S, Mei X, Chen Z. Electrospinning of antibacterial and anti-inflammatory Ag@hesperidin core-shell nanoparticles into nanofibers used for promoting infected wound healing. Regen Biomater 2022; 9:rbac012. [PMID: 35592139 PMCID: PMC9113224 DOI: 10.1093/rb/rbac012] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 11/14/2022] Open
Abstract
Abstract
Bacterial infection and excessive inflammation are still the main obstacles to wound repair. Thus, antibacterial and anti-inflammation nanomaterials are always attracting for infected wound healing. In this work, ultra-uniform (∼20 nm) and colloidally stable Ag nanoparticles (Ag-Hes NPs) with core-shell structure were prepared by using hesperidin as reducing and caping agent. The obtained Ag-Hes NPs present effective antibacterial properties on both S. aureus and E. coli. Ag-Hes NPs also got high DPPH (1,1-Diphenyl-1-picrylhydrazyl) scavenging capability of 69%. Under the package of polyvinyl alcohol and sodium alginate, Ag-Hes NPs were encapsulated into electro spun nanofibers to form hydrogel (Ag-Hes@H). This strategy provides a moisture environment which could enrich and release Ag-Hes NPs gradually. Cell experiments and animal wound healing investigation proved that Ag-Hes@H could promote the proliferation and migration of HUVECS cells and accelerate infected wound healing. Meanwhile, Ag-Hes@H significantly reduced the expression of inflammatory cytokines, including IL-6, MMP9, and TNF-α. Immunohistochemistry data further suggested that Ag-Hes@H accelerated wound closure by promoting collagen deposition and skin cell proliferation. The designed antibacterial and anti-inflammatory Ag-Hes@H has great potential for promoting infected wound healing.
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Affiliation(s)
- Xiuli Ren
- Jinzhou Medical University, Jinzhou 121001, China
| | - Yanan Hu
- Jinzhou Medical University, Jinzhou 121001, China
| | - Linna Chang
- Jinzhou Medical University, Jinzhou 121001, China
| | - Shibo Xu
- Jinzhou Medical University, Jinzhou 121001, China
| | - Xifan Mei
- Jinzhou Medical University, Jinzhou 121001, China
- Correspondence address. E-mail: (X.M.); (Z.C.)
| | - Zhenhua Chen
- Jinzhou Medical University, Jinzhou 121001, China
- Correspondence address. E-mail: (X.M.); (Z.C.)
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Shen X, Li D, Zhuang P, Yu Y, Shi Z, Mei X, Liu C. Negatively charged gold nanoclusters protect against diabetic cardiomyopathy by inhibiting mitophagy. NEW J CHEM 2022. [DOI: 10.1039/d2nj01536f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Negatively charged AuNCs were found to stabilize the membrane potential and inhibit mitophagy, thereby preventing diabetic cardiomyopathy.
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Affiliation(s)
- Xiaolei Shen
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Dan Li
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China
| | - Pengfei Zhuang
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China
| | - Yang Yu
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Zuqiang Shi
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xifan Mei
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Chang Liu
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Yu Q, Jiang X, Liu X, Shen W, Mei X, Tian H, Wu C. Glutathione-modified macrophage-derived cell membranes encapsulated metformin nanogels for the treatment of spinal cord injury. Materials Science and Engineering: C 2022; 133:112668. [DOI: 10.1016/j.msec.2022.112668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/20/2021] [Accepted: 01/14/2022] [Indexed: 12/15/2022]
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Jiang X, Liu X, Yu Q, Shen W, Mei X, Tian H, Wu C. Functional resveratrol-biodegradable manganese doped silica nanoparticles for the spinal cord injury treatment. Mater Today Bio 2021; 13:100177. [PMID: 34938991 DOI: 10.1016/j.mtbio.2021.100177] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 11/25/2021] [Accepted: 12/01/2021] [Indexed: 11/20/2022] Open
Abstract
Spinal cord injury (SCI) causes secondary injury, accompanied by pathological changes such as oxidative stress, inflammation and neuronal apoptosis. This leads to permanent disabilities such as paralysis and loss of movement or sensation. Due to the ineffectiveness of drugs passing through the blood spinal cord barrier (BSCB), there is currently no effective treatment for SCI. The aim of this experiment was to design plasma complex component functionalized manganese-doped silica nanoparticles (PMMSN) with a redox response as a targeted drug carrier for resveratrol (RES), which effectively transports insoluble drugs to cross the BSCB. RES was adsorbed into PMMSN with a particle size of approximately 110 nm by the adsorption method, and the drug loading reached 32.61 ± 3.38%. The RES release results for the loaded sample (PMMSN-RES) showed that the PMMSN-RES exhibited a release slowly effect. In vitro and vivo experiments demonstrated that PMMSN-RES decreased reactive oxygen species (ROS) and malondialdehyde (MDA), increased superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities, reduced the expression of inflammatory (TNF-α, IL-1β and IL-6) and apoptotic cytokines (cleaved caspase-3) in spinal cord tissue after SCI. In summary, PMMSN-RES may be a potential pharmaceutical preparation for the treatment of SCI by reducing neuronal apoptosis and inhibiting inflammation caused by reducing oxidative stress to promote the recovery of mouse motor function.
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Key Words
- BSCB, blood spinal cord barrier
- GSH-Px, glutathione peroxidase
- H2O2, hydrogen peroxide
- MDA, malondialdehyde
- MMSN, manganese-doped mesoporous silica nanoparticles
- Manganese-doped silica nanoparticles
- MnO2, manganese dioxide
- Neuronal apoptosis
- Oxidative stress
- PMMSN, plasma complex component functionalized manganese-doped silica nanoparticles
- RES, resveratrol
- ROS, reactive oxygen species
- Redox response
- Resveratrol
- SCI, spinal cord injury
- SOD, increased superoxide dismutase
- Spinal cord injury
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Affiliation(s)
- Xue Jiang
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China
| | - Xiaoyao Liu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China
| | - Qi Yu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China
| | - Wenwen Shen
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China
| | - Xifan Mei
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, 121001, China
| | - He Tian
- Department of Histology and Embryology, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China
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Ding J, Gao B, Chen Z, Mei X. An NIR-Triggered Au Nanocage Used for Photo-Thermo Therapy of Chronic Wound in Diabetic Rats Through Bacterial Membrane Destruction and Skin Cell Mitochondrial Protection. Front Pharmacol 2021; 12:779944. [PMID: 34925036 PMCID: PMC8671044 DOI: 10.3389/fphar.2021.779944] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 10/28/2021] [Indexed: 11/26/2022] Open
Abstract
Bacterial infection and its severe oxidative stress reaction will cause damage to skin cell mitochondria, resulting in long-lasting wound healing and great pain to patients. Thus, delayed wound healing in diabetic patients with Staphylococcus aureus infection is a principal challenge worldwide. Therefore, novel biomaterials with multifunction of bacterial membrane destruction and skin cell mitochondrial protection are urgently needed to be developed to address this challenge. In this work, novel gold cage (AuNCs) modified with epigallocatechin gallate (EGCG) were prepared to treat delayed diabetic wounds. The results showed that Au-EGCG had a high and stable photothermal conversion efficiency under near-infrared irradiation, and the scavenging rate of Au-EGCG for S. aureus could reach 95%. The production of large amounts of reactive oxygen species (ROS) leads to the disruption of bacterial membranes, inducing bacterial lysis and apoptosis. Meanwhile, Au-EGCG fused into hydrogel (Au-EGCG@H) promoted the migration and proliferation of human umbilical cord endothelial cells, reduced cellular mitochondrial damage and oxidative stress in the presence of infection, and significantly increased the basic fibroblast growth factor expression and vascular endothelial growth factor. In addition, animal studies showed that wound closure was 97.2% after 12 days of treatment, and the healing of chronic diabetic wounds was significantly accelerated. Au-EGCG nanoplatforms were successfully prepared to promote cell migration and angiogenesis in diabetic rats while removing S. aureus, reducing oxidative stress in cells, and restoring impaired mitochondrial function. Au-EGCG provides an effective, biocompatible, and multifunctional therapeutic strategy for chronic diabetic wounds.
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Affiliation(s)
| | - Binbin Gao
- Jinzhou Central Hospital, Jinzhou, China
| | | | - Xifan Mei
- Jinzhou Medical University, Jinzhou, China
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Zhou Z, Li D, Fan X, Yuan Y, Wang H, Wang D, Mei X. Gold nanoclusters conjugated berberine reduce inflammation and alleviate neuronal apoptosis by mediating M2 polarization for spinal cord injury repair. Regen Biomater 2021; 9:rbab072. [PMID: 35558096 PMCID: PMC9089162 DOI: 10.1093/rb/rbab072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 11/22/2022] Open
Abstract
Spinal cord injury (SCI) leads to nerve cell apoptosis and loss of motor function. Herein, excessive activation of the M1 phenotype macrophages/microglia is found to be the main reason for the poor prognosis of SCI, but the selective activation phenotype (M2) macrophages/microglia facilitates the recovery of SCI. Thereafter, we used gold nanoclusters loaded berberine (BRB-AuNCs) to reduce inflammation by inhibiting the activation of M1 phenotype macrophages/microglia, which simultaneously inhibited neuronal apoptosis after SCI. In vitro and in vivo experiments showed that BRB-AuNCs reduced M1 protein marker CD86, increased M2 protein marker CD206, reduced inflammation and apoptotic cytokines (IL-1β, IL-6, TNF-α, Cleaved Caspase-3 and Bax). These results indicate that BRB-AuNCs have excellent anti-inflammatory and anti-apoptotic effects by inducing the polarization of macrophages/microglia from M1 phenotype to M2 phenotype. Thereafter, the motor functions of SCI rats were significantly improved after treatment with BRB-AuNCs. This work not only provides a new way for the treatment of SCI but also broadens BRB utilization strategies.
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Affiliation(s)
- Zipeng Zhou
- Department of The First Clinical College, Liaoning University of Traditional Chinese Medicine, No. 79, Chongshan East Road, Huanggu District, Shenyang City, Liaoning Province 110847, P.R. China
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Dan Li
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China
| | - Xiangyi Fan
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yajiang Yuan
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Hongyu Wang
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Dahao Wang
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xifan Mei
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
- Jinzhou Medical University, No.40, Section 3, Songpo Road, Linghe District Jinzhou City, Liaoning Province 121001, P.R.China
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46
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Song C, Xu S, Chang L, Zhao X, Mei X, Ren X, Chen Z. Preparation of EGCG decorated, injectable extracellular vesicles for cartilage repair in rat arthritis. Regen Biomater 2021; 8:rbab067. [PMID: 34858635 PMCID: PMC8634449 DOI: 10.1093/rb/rbab067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/03/2021] [Accepted: 11/11/2021] [Indexed: 12/15/2022] Open
Abstract
Arthritis is a kind of chronic inflammatory autoimmune disease, which can destroy joint cartilage and bone, leading to joint pain, joint swelling, and limited mobility. Traditional therapies have many side effects or focus too much on anti-inflammation while neglecting joint repair. In this experiment, we combined Epigallocatechin gallate (EGCG) with extracellular vesicles derived from macrophages to treat rheumatoid arthritis. Sustained-release resulted in a significant decrease in chondrocyte expression of hypoxia-inducible factor 1-alpha, a decrease in apoptosis-related proteins Cytochrome C, Caspase-3, Caspase-9, and Bax. Molecular biological analysis showed that extracellular vesicles-encapsulated EGCG (EVs-EGCG) more significantly upregulated type II collagen expression by about 1.8-fold than EGCG alone, which was more beneficial for arthritis repair. Animal experiments revealed that these EGCG-coated extracellular vesicles significantly reduced swelling, decreased synovial hyperplasia, repaired cartilage, and attenuated arthritis-related pathology scores in arthritic rats. Measurement data showed that EVs-EGCG treatment reduced joint swelling by approximately 39.5% in rheumatoid rats. In vitro studies have shown that this EVs-EGCG can increase the expression of cartilage type II collagen and reduce apoptosis of chondrocytes. Moreover, it was demonstrated in vivo experiments to reduce cartilage destruction in rheumatoid arthritis rats, providing a solution for the treatment of rheumatoid arthritis.
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Affiliation(s)
- Changwei Song
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Shibo Xu
- Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Linna Chang
- Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Xingjun Zhao
- Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Xifan Mei
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Xiuli Ren
- Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Zhenhua Chen
- Jinzhou Medical University, Jinzhou, Liaoning 121001, China
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Zhang C, Li D, Hu H, Wang Z, An J, Gao Z, Zhang K, Mei X, Wu C, Tian H. Engineered extracellular vesicles derived from primary M2 macrophages with anti-inflammatory and neuroprotective properties for the treatment of spinal cord injury. J Nanobiotechnology 2021; 19:373. [PMID: 34789266 PMCID: PMC8600922 DOI: 10.1186/s12951-021-01123-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 11/02/2021] [Indexed: 12/12/2022] Open
Abstract
Background Uncontrollable inflammation and nerve cell apoptosis are the most destructive pathological response after spinal cord injury (SCI). So, inflammation suppression combined with neuroprotection is one of the most promising strategies to treat SCI. Engineered extracellular vesicles with anti-inflammatory and neuroprotective properties are promising candidates for implementing these strategies for the treatment of SCI. Results By combining nerve growth factor (NGF) and curcumin (Cur), we prepared stable engineered extracellular vesicles of approximately 120 nm from primary M2 macrophages with anti-inflammatory and neuroprotective properties (Cur@EVs−cl−NGF). Notably, NGF was coupled with EVs by matrix metalloproteinase 9 (MMP9)-a cleavable linker to release at the injured site accurately. Through targeted experiments, we found that these extracellular vesicles could actively and effectively accumulate at the injured site of SCI mice, which greatly improved the bioavailability of the drugs. Subsequently, Cur@EVs−cl−NGF reached the injured site and could effectively inhibit the uncontrollable inflammatory response to protect the spinal cord from secondary damage; in addition, Cur@EVs−cl−NGF could release NGF into the microenvironment in time to exert a neuroprotective effect against nerve cell damage. Conclusions A series of in vivo and in vitro experiments showed that the engineered extracellular vesicles significantly improved the microenvironment after injury and promoted the recovery of motor function after SCI. We provide a new method for inflammation suppression combined with neuroprotective strategies to treat SCI. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01123-9.
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Affiliation(s)
- Chuanjie Zhang
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121002, Liaoning, China.,Key Laboratory of Medical Tissue Engineering of Liaoning Province, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China
| | - Daoyong Li
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121002, Liaoning, China.,Key Laboratory of Medical Tissue Engineering of Liaoning Province, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China
| | - Hengshuo Hu
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121002, Liaoning, China.,Key Laboratory of Medical Tissue Engineering of Liaoning Province, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China
| | - Zhe Wang
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121002, Liaoning, China.,Key Laboratory of Medical Tissue Engineering of Liaoning Province, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China
| | - Jinyu An
- Pharmacy School, Jinzhou Medical University, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China
| | - Zhanshan Gao
- Pharmacy School, Jinzhou Medical University, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China
| | - Kaihua Zhang
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121002, Liaoning, China.,Key Laboratory of Medical Tissue Engineering of Liaoning Province, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China
| | - Xifan Mei
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121002, Liaoning, China. .,Key Laboratory of Medical Tissue Engineering of Liaoning Province, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China.
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China.
| | - He Tian
- Department of Histology and Embryology, Jinzhou Medical University, No. 40, Songpo Road, Jinzhou, 121002, Liaoning, China.
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Xu S, Chang L, Hu Y, Zhao X, Huang S, Chen Z, Ren X, Mei X. Tea polyphenol modified, photothermal responsive and ROS generative black phosphorus quantum dots as nanoplatforms for promoting MRSA infected wounds healing in diabetic rats. J Nanobiotechnology 2021; 19:362. [PMID: 34758829 PMCID: PMC8579683 DOI: 10.1186/s12951-021-01106-w] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 10/26/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Healing of MRSA (methicillin-resistant Staphylococcus aureus) infected deep burn wounds (MIDBW) in diabetic patients remains an obstacle but is a cutting-edge research problem in clinical science. Surgical debridement and continuous antibiotic use remain the primary clinical treatment for MIDBW. However, suboptimal pharmacokinetics and high doses of antibiotics often cause serious side effects such as fatal complications of drug-resistant bacterial infections. MRSA, which causes wound infection, is currently a bacterium of concern in diabetic wound healing. In more severe cases, it can even lead to amputation of the patient's limb. The development of bioactive nanomaterials that can promote infected wound healing is significant. RESULTS The present work proposed a strategy of using EGCG (Epigallocatechin gallate) modified black phosphorus quantum dots (BPQDs) as therapeutic nanoplatforms for MIDBW to achieve the synergistic functions of NIR (near-infrared)-response, ROS-generation, sterilization, and promoting wound healing. The electron spin resonance results revealed that EGCG-BPQDs@H had a more vital photocatalytic ability to produce singlet oxygen than BPQDs@H. The inhibition results indicated an effective bactericidal rate of 88.6% against MRSA. Molecular biology analysis demonstrated that EGCG-BPQDs significantly upregulated CD31 nearly fourfold and basic fibroblast growth factor (bFGF) nearly twofold, which were beneficial for promoting the proliferation of vascular endothelial cells and skin epidermal cells. Under NIR irradiation, EGCG-BPQDs hydrogel (EGCG-BPQDs@H) treated MIDBW area could rapidly raise temperature up to 55 °C for sterilization. The MIBDW closure rate of rats after 21 days of treatment was 92.4%, much better than that of 61.1% of the control group. The engineered EGCG-BPQDs@H were found to promote MIDBW healing by triggering the PI3K/AKT and ERK1/2 signaling pathways, which could enhance cell proliferation and differentiation. In addition, intravenous circulation experiment showed good biocompatibility of EGCG-BPQDs@H. No significant damage to major organs was observed in rats. CONCLUSIONS The obtained results demonstrated that EGCG-BPQDs@H achieved the synergistic functions of photocatalytic property, photothermal effects and promoted wound healing, and are promising multifunctional nanoplatforms for MIDBW healing in diabetics.
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Affiliation(s)
- Shibo Xu
- Jinzhou Medical University, Jinzhou, 121001, Liaoning, China
| | - Linna Chang
- Jinzhou Medical University, Jinzhou, 121001, Liaoning, China
| | - Yanan Hu
- Jinzhou Medical University, Jinzhou, 121001, Liaoning, China
| | - Xingjun Zhao
- Jinzhou Medical University, Jinzhou, 121001, Liaoning, China
| | - Shuocheng Huang
- Jinzhou Medical University, Jinzhou, 121001, Liaoning, China
| | - Zhenhua Chen
- Jinzhou Medical University, Jinzhou, 121001, Liaoning, China.
| | - Xiuli Ren
- Jinzhou Medical University, Jinzhou, 121001, Liaoning, China.
| | - Xifan Mei
- Jinzhou Medical University, Jinzhou, 121001, Liaoning, China.
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Liu X, Jiang X, Yu Q, Shen W, Tian H, Mei X, Wu C. Sodium alginate and Naloxone loaded macrophage-derived nanovesicles for the treatment of spinal cord injury. Asian J Pharm Sci 2021; 17:87-101. [PMID: 35261646 PMCID: PMC8888181 DOI: 10.1016/j.ajps.2021.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 11/06/2021] [Accepted: 11/09/2021] [Indexed: 12/18/2022] Open
Abstract
Spinal cord injury (SCI) causes Ca2+ overload, which can lead to inflammation and neuronal apoptosis. In this study, we prepared a nanovesicle derived from macrophage membrane (MVs), which encapsulated sodium alginate (SA) and naloxone (NAL) to inhibit inflammation and protect neurons by reducing the free Ca2+concentration at the SCI site. Based on the transmission electron microscopy (TEM) image, the encapsulated sample (NAL–SA–MVs) had a particle size of approximately 134 ± 11 nm and exhibited a sustained release effect. The encapsulation rate of NAL and SA was 82.07% ± 3.27% and 72.13% ± 2.61% in NAL–SA–MVs, respectively. Targeting tests showed that the NAL–SA–MVs could accumulate in large quantities and enhance the concentration of SA and NAL at the lesion sites. In vivo and in vitro studies indicated that the NAL–SA–MVs could decrease the concentration of free Ca2+, which should further alleviate the inflammatory response and neuronal apoptosis. Anti-inflammation results demonstrated that the NAL–SA–MVs could reduce the pro-inflammation factors (iNOS, TNF-α, IL-1β, IL-6) and increase the expression of anti-inflammation factors (IL-10) at the cell and animal level. Concurrently, fluorescence, flow cytometry and western blot characterization showed that the apoptotic condition of the neurons was significantly inhibited. In addition, the motor function of C57 mice were significantly improved after NAL–SA–MVs treatment. In conclusion, it is suggested that the NAL–SA–MVs has tremendous potential in the treatment of SCI.
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Affiliation(s)
- Xiaoyao Liu
- Pharmacy School, Jinzhou Medical University, Jinzhou 121001, China
| | - Xue Jiang
- Pharmacy School, Jinzhou Medical University, Jinzhou 121001, China
| | - Qi Yu
- Pharmacy School, Jinzhou Medical University, Jinzhou 121001, China
| | - Wenwen Shen
- Pharmacy School, Jinzhou Medical University, Jinzhou 121001, China
| | - He Tian
- Department of Histology and Embryology, Jinzhou Medical University, Jinzhou 121001, China
| | - Xifan Mei
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121004, China
- Corresponding author.
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou 121001, China
- Corresponding author.
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Lin S, Li D, Zhou Z, Xu C, Mei X, Tian H. Therapy of spinal cord injury by zinc modified gold nanoclusters via immune-suppressing strategies. J Nanobiotechnology 2021; 19:281. [PMID: 34544425 PMCID: PMC8454132 DOI: 10.1186/s12951-021-01035-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/10/2021] [Indexed: 11/24/2022] Open
Abstract
Background Spinal cord injury (SCI) is damage to the central nervous system (CNS) that causes devastating complications from chronic pain to breathing problems. Unfortunately, few effective and safe treatments are known to relieve the damages of SCI. Nanomedicines are used for the treatment of SCI with relatively few side effects, but only depending on the delivery of additional drugs, which increase complexity to the treatment. Considering the urgent need for saving SCI patients, it is important to develop promising nanobiotechnology for relieving their pains. Methods The clinical survey was used to investigate SCI patients, thereafter the therapy plan was designed. The receiver-operating characteristics (ROC) curves of the prediction model were built to find symptoms after SCI. The treatment plan (i.e. immunosuppressive strategy) was designed by manufacturing therapies based on gold nanoclusters (AuNCs). The response of the immune cells (macrophages) was studied accordingly. The western blot, reactive oxygen species (ROS) activity assay, enzyme-linked immunosorbent assay (ELISA), quantitative real-time PCR (RT-qPCR), and immunochemical staining were used for evaluation of the in vivo and in vitro therapeutic effects. Results We found increased monocytes/macrophages (M/Ms) levels in 114 SCI subjects (44.7% with severe SCI complications) by the clinical survey. Additionally, the enhanced macrophage level was found to be closely related to the walking disorder after SCI. Since macrophages were central effector cells of the immune system, we assumed that the immune-suppressing strategies could be used for SCI therapy. Thereafter, AuNCs were stabilized by dihydrolipoic acid (DHLA) enantiomers (including DL-DHLA, R-DHLA; A racemic mixture (R and S) was denoted as DL; R and S refer to Rectus and Sinister), obtaining DL-DHLA-AuNCs and R-DHLA-AuNCs, respectively. In addition, zinc-modified DL-DHLA and R-DHLA stabilized AuNCs (i.e., DL-DHLA-AuNCs-Zn and R-DHLA-AuNCs-Zn) were investigated. Among these AuNCs, R-DHLA-AuNCs-Zn showed the most remarkable therapeutic effect for promoting the polarization of pro-inflammatory macrophages and reducing neuronal ROS-induced apoptosis and inflammation in vitro and in vivo; the lesion size was decreased and the survival rate of ventral neurons is higher. Conclusions R-DHLA-AuNCs-Zn have comprehensive therapeutic capabilities, especially the immune-suppressing effects for the therapy of SCI, which is promising to relieve the pain or even recover SCI for the patients. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01035-8.
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Affiliation(s)
- Sen Lin
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China
| | - Dan Li
- Department of Basic Science, Jinzhou Medical University, Jinzhou, People's Republic of China
| | - Zipeng Zhou
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China
| | - Chang Xu
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China
| | - Xifan Mei
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China.
| | - He Tian
- Department of Basic Science, Jinzhou Medical University, Jinzhou, People's Republic of China.
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