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Li X, Zhang F, Sun L, Cai X, Lou F, Sun Y, Gao M, Wang Z, Tang S, Fan L, Wu Y, Jin X, Deng S, Xu Z, Sun X, Li Q, Wang H. Single-Cell RNA Sequencing Identifies WARS1+ Mesenchymal Stem Cells with Enhanced Immunomodulatory Capacity and Improved Therapeutic Efficacy. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:257-267. [PMID: 38856632 DOI: 10.4049/jimmunol.2300752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 04/26/2024] [Indexed: 06/11/2024]
Abstract
Psoriasis is a common inflammatory skin disorder with no cure. Mesenchymal stem cells (MSCs) have immunomodulatory properties for psoriasis, but the therapeutic efficacies varied, and the molecular mechanisms were unknown. In this study, we improved the efficacy by enhancing the immunomodulatory effects of umbilical cord-derived MSCs (UC-MSCs). UC-MSCs stimulated by TNF-α and IFN-γ exhibited a better therapeutic effect in a mouse model of psoriasis. Single-cell RNA sequencing revealed that the stimulated UC-MSCs overrepresented a subpopulation expressing high tryptophanyl-tRNA synthetase 1 (WARS1). WARS1-overexpressed UC-MSCs treat psoriasis-like skin inflammation more efficiently than control UC-MSCs by restraining the proinflammatory macrophages. Mechanistically, WARS1 maintained a RhoA-Akt axis and governed the immunomodulatory properties of UC-MSCs. Together, we identify WARS1 as a master regulator of UC-MSCs with enhanced immunomodulatory capacities, which paves the way for the directed modification of UC-MSCs for escalated therapeutic efficacy.
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Affiliation(s)
- Xiangxiao Li
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Biochemistry and Molecular Cell Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fengjiao Zhang
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Libo Sun
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaojie Cai
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fangzhou Lou
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Sun
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Gao
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhikai Wang
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sibei Tang
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Fan
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yue Wu
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinping Jin
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Siyu Deng
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhenyao Xu
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuxu Sun
- Department of Biochemistry and Molecular Cell Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qun Li
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Ruijin Hospital, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Honglin Wang
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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2
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Liu G, Liang J, Li W, Jiang S, Song M, Xu S, Du Q, Wang L, Wang X, Liu X, Tang L, Yang Z, Zhou M, Meng H, Zhang L, Yang Y, Zhang B. The protective effect of erythropoietin and its novel derived peptides in peripheral nerve injury. Int Immunopharmacol 2024; 138:112452. [PMID: 38943972 DOI: 10.1016/j.intimp.2024.112452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/23/2024] [Accepted: 06/07/2024] [Indexed: 07/01/2024]
Abstract
Peripheral nerve injury seriously endangers human life and health, but there is no clinical drug for the treatment of peripheral nerve injury, so it is imperative to develop drugs to promote the repair of peripheral nerve injury. Erythropoietin (EPO) not only has the traditional role of promoting erythropoiesis, but also has a tissue-protective effect. Over the past few decades, researchers have confirmed that EPO has neuroprotective effects. However, side effects caused by long-term use of EPO limited its clinical application. Therefore, EPO derivatives with low side effects have been explored. Among them, ARA290 has shown significant protective effects on the nervous system, but the biggest disadvantage of ARA290, its short half-life, limits its application. To address the short half-life issue, the researchers modified ARA290 with thioether cyclization to generate a thioether cyclized helical B peptide (CHBP). ARA290 and CHBP have promising applications as peptide drugs. The neuroprotective effects they exhibit have attracted continuous exploration of their mechanisms of action. This article will review the research on the role of EPO, ARA290 and CHBP in the nervous system around this developmental process, and provide a certain reference for the subsequent research.
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Affiliation(s)
- Guixian Liu
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Jie Liang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Wei Li
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Suli Jiang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Meiying Song
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Shuo Xu
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Qiaochu Du
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Luoyang Wang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Xiao Wang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Xiaoli Liu
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Lei Tang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Zijie Yang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Mengting Zhou
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Haining Meng
- Department of Emergency Medicine, Medical College of Qingdao University, Qingdao, Shandong 266071, PR China
| | - Li Zhang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Yanyan Yang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Bei Zhang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China.
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3
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Li C, Song Y, Meng X. The Role of Macrophages in Nerve Regeneration: Polarization and Combination with Tissue Engineering. TISSUE ENGINEERING. PART B, REVIEWS 2024. [PMID: 38832865 DOI: 10.1089/ten.teb.2024.0100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Peripheral nerve regeneration after trauma poses a substantial clinical challenge that has already been investigated for many years. Infiltration of immune cells is a critical step in the response to nerve damage that creates a supportive microenvironment for regeneration. In this work, we focus on a special type of immune cell, macrophage, in addressing the problem of neuronal regeneration. We discuss the complex endogenous mechanisms of peripheral nerve injury and regrowth vis-à-vis macrophages, including their recruitment, polarization, and interplay with Schwann cells post-trauma. Furthermore, we elucidate the underlying mechanisms by which exogenous stimuli govern the above events. Finally, we summarize the necessary roles of macrophages in peripheral nerve lesions and reconstruction. There are many challenges in controlling macrophage functions to achieve complete neuronal regeneration, even though considerable progress has been made in understanding the connection between these cells and peripheral nerve damage.
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Affiliation(s)
- Changqing Li
- The First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yuanyu Song
- The First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xianyu Meng
- Department of Orthopedics, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
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4
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Gu D, Xia Y, Ding Z, Qian J, Gu X, Bai H, Jiang M, Yao D. Inflammation in the Peripheral Nervous System after Injury. Biomedicines 2024; 12:1256. [PMID: 38927464 PMCID: PMC11201765 DOI: 10.3390/biomedicines12061256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Nerve injury is a common condition that occurs as a result of trauma, iatrogenic injury, or long-lasting stimulation. Unlike the central nervous system (CNS), the peripheral nervous system (PNS) has a strong capacity for self-repair and regeneration. Peripheral nerve injury results in the degeneration of distal axons and myelin sheaths. Macrophages and Schwann cells (SCs) can phagocytose damaged cells. Wallerian degeneration (WD) makes the whole axon structure degenerate, creating a favorable regenerative environment for new axons. After nerve injury, macrophages, neutrophils and other cells are mobilized and recruited to the injury site to phagocytose necrotic cells and myelin debris. Pro-inflammatory and anti-inflammatory factors involved in the inflammatory response provide a favorable microenvironment for peripheral nerve regeneration and regulate the effects of inflammation on the body through relevant signaling pathways. Previously, inflammation was thought to be detrimental to the body, but further research has shown that appropriate inflammation promotes nerve regeneration, axon regeneration, and myelin formation. On the contrary, excessive inflammation can cause nerve tissue damage and pathological changes, and even lead to neurological diseases. Therefore, after nerve injury, various cells in the body interact with cytokines and chemokines to promote peripheral nerve repair and regeneration by inhibiting the negative effects of inflammation and harnessing the positive effects of inflammation in specific ways and at specific times. Understanding the interaction between neuroinflammation and nerve regeneration provides several therapeutic ideas to improve the inflammatory microenvironment and promote nerve regeneration.
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Affiliation(s)
- Dandan Gu
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Yiming Xia
- Medical School, Nantong University, Nantong 226001, China
| | - Zihan Ding
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Jiaxi Qian
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Xi Gu
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Huiyuan Bai
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Maorong Jiang
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Dengbing Yao
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
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Berardo A, Bacaglio CR, Báez BB, Sambuelli R, Sheikh KA, Lopez PHH. Blockade of Rho-associated kinase prevents inhibition of axon regeneration of peripheral nerves induced by anti-ganglioside antibodies. Neural Regen Res 2024; 19:895-899. [PMID: 37843226 PMCID: PMC10664126 DOI: 10.4103/1673-5374.382258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 06/08/2023] [Accepted: 07/19/2023] [Indexed: 10/17/2023] Open
Abstract
Anti-ganglioside antibodies are associated with delayed/poor clinical recovery in Guillain-Barrè syndrome, mostly related to halted axon regeneration. Cross-linking of cell surface gangliosides by anti-ganglioside antibodies triggers inhibition of nerve repair in in vitro and in vivo paradigms of axon regeneration. These effects involve the activation of the small GTPase RhoA/ROCK signaling pathways, which negatively modulate growth cone cytoskeleton, similarly to well stablished inhibitors of axon regeneration described so far. The aim of this work was to perform a proof of concept study to demonstrate the effectiveness of Y-27632, a selective pharmacological inhibitor of ROCK, in a mouse model of axon regeneration of peripheral nerves, where the passive immunization with a monoclonal antibody targeting gangliosides GD1a and GT1b was previously reported to exert a potent inhibitory effect on regeneration of both myelinated and unmyelinated fibers. Our results demonstrate a differential sensitivity of myelinated and unmyelinated axons to the pro-regenerative effect of Y-27632. Treatment with a total dosage of 9 mg/kg of Y-27632 resulted in a complete prevention of anti-GD1a/GT1b monoclonal antibody-mediated inhibition of axon regeneration of unmyelinated fibers to skin and the functional recovery of mechanical cutaneous sensitivity. In contrast, the same dose showed toxic effects on the regeneration of myelinated fibers. Interestingly, scale down of the dosage of Y-27632 to 5 mg/kg resulted in a significant although not complete recovery of regenerated myelinated axons exposed to anti-GD1a/GT1b monoclonal antibody in the absence of toxicity in animals exposed to only Y-27632. Overall, these findings confirm the in vivo participation of RhoA/ROCK signaling pathways in the molecular mechanisms associated with the inhibition of axon regeneration induced by anti-GD1a/GT1b monoclonal antibody. Our findings open the possibility of therapeutic pharmacological intervention targeting RhoA/Rock pathway in immune neuropathies associated with the presence of anti-ganglioside antibodies and delayed or incomplete clinical recovery after injury in the peripheral nervous system.
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Affiliation(s)
- Andrés Berardo
- Laboratorio de Neurobiología, Instituto de Investigación Médica Mercedes y Martin Ferreyra, (INIMEC)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Cristian R. Bacaglio
- Laboratorio de Neurobiología, Instituto de Investigación Médica Mercedes y Martin Ferreyra, (INIMEC)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad Nacional de Córdoba, Córdoba, Argentina
- Departamento de Química Biológica-Centro de Investigaciones en Química Biológica de Córdoba (CIQUIBIC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Cs. Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Bárbara B. Báez
- Laboratorio de Neurobiología, Instituto de Investigación Médica Mercedes y Martin Ferreyra, (INIMEC)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad Nacional de Córdoba, Córdoba, Argentina
- Departamento de Química Biológica-Centro de Investigaciones en Química Biológica de Córdoba (CIQUIBIC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Cs. Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Rubén Sambuelli
- Servicio de Anatomía Patológica, Clínica Universitaria Reina Fabiola, Universidad Católica de Córdoba, Córdoba, Argentina
| | - Kazim A. Sheikh
- Department of Neurology, University of Texas Medical School at Houston, Houston, TX, USA
| | - Pablo H. H. Lopez
- Laboratorio de Neurobiología, Instituto de Investigación Médica Mercedes y Martin Ferreyra, (INIMEC)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad Nacional de Córdoba, Córdoba, Argentina
- Departamento de Química Biológica-Centro de Investigaciones en Química Biológica de Córdoba (CIQUIBIC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Cs. Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
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6
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Liu B, Alimi OA, Wang Y, Kong Y, Kuss M, Krishnan MA, Hu G, Xiao Y, Dong J, DiMaio DJ, Duan B. Differentiated mesenchymal stem cells-derived exosomes immobilized in decellularized sciatic nerve hydrogels for peripheral nerve repair. J Control Release 2024; 368:24-41. [PMID: 38367864 DOI: 10.1016/j.jconrel.2024.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/31/2024] [Accepted: 02/12/2024] [Indexed: 02/19/2024]
Abstract
Peripheral nerve injury (PNI) and the limitations of current treatments often result in incomplete sensory and motor function recovery, which significantly impact the patient's quality of life. While exosomes (Exo) derived from stem cells and Schwann cells have shown promise on promoting PNI repair following systemic administration or intraneural injection, achieving effective local and sustained Exo delivery holds promise to treat local PNI and remains challenging. In this study, we developed Exo-loaded decellularized porcine nerve hydrogels (DNH) for PNI repair. We successfully isolated Exo from differentiated human adipose-derived mesenchymal stem cells (hADMSC) with a Schwann cell-like phenotype (denoted as dExo). These dExo were further combined with polyethylenimine (PEI), and DNH to create polyplex hydrogels (dExo-loaded pDNH). At a PEI content of 0.1%, pDNH showed cytocompatibility for hADMSCs and supported neurite outgrowth of dorsal root ganglions. The sustained release of dExos from dExo-loaded pDNH persisted for at least 21 days both in vitro and in vivo. When applied around injured nerves in a mouse sciatic nerve crush injury model, the dExo-loaded pDNH group significantly improved sensory and motor function recovery and enhanced remyelination compared to dExo and pDNH only groups, highlighting the synergistic regenerative effects. Interestingly, we observed a negative correlation between the number of colony-stimulating factor-1 receptor (CSF-1R) positive cells and the extent of PNI regeneration at the 21-day post-surgery stage. Subsequent in vitro experiments demonstrated the potential involvement of the CSF-1/CSF-1R axis in Schwann cells and macrophage interaction, with dExo effectively downregulating CSF-1/CSF-1R signaling.
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Affiliation(s)
- Bo Liu
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Olawale A Alimi
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Yanfei Wang
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA; College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Erie, PA 16509, USA
| | - Yunfan Kong
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Mitchell Kuss
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Mena Asha Krishnan
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Guoku Hu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Yi Xiao
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jixin Dong
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Dominick J DiMaio
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Bin Duan
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
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7
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Huang Y, Wu L, Zhao Y, Guo J, Li R, Ma S, Ying Z. Schwann cell promotes macrophage recruitment through IL-17B/IL-17RB pathway in injured peripheral nerves. Cell Rep 2024; 43:113753. [PMID: 38341853 DOI: 10.1016/j.celrep.2024.113753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/05/2023] [Accepted: 01/22/2024] [Indexed: 02/13/2024] Open
Abstract
Macrophage recruitment to the injured nerve initiates a cascade of events, including myelin debris clearance and nerve trophic factor secretion, which contribute to proper nerve tissue repair. However, the mechanism of macrophage recruitment is still unclear. Here, by comparing wild-type with Mlkl-/- and Sarm1-/- mice, two mouse strains with impaired myelin debris clearance after peripheral nerve injury, we identify interleukin-17B (IL-17B) as a key regulator of macrophage recruitment. Schwann-cell-secreted IL-17B acts in an autocrine manner and binds to IL-17 receptor B to promote macrophage recruitment, and global or Schwann-cell-specific IL-17B deletion reduces macrophage infiltration, myelin clearance, and axon regeneration. We also show that the IL-17B signaling pathway is defective in the injured central nerves. These results reveal an important role for Schwann cell autocrine signaling during Wallerian degeneration and point to potential mechanistic targets for accelerating myelin clearance and improving demyelinating disease.
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Affiliation(s)
- Yanju Huang
- State Key Laboratory of Animal Biotech Breeding, Department of Nutrition and Health, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Liwen Wu
- State Key Laboratory of Animal Biotech Breeding, Department of Nutrition and Health, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yueshan Zhao
- State Key Laboratory of Animal Biotech Breeding, Department of Nutrition and Health, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jia Guo
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Ruoyi Li
- State Key Laboratory of Animal Biotech Breeding, Department of Nutrition and Health, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Suchen Ma
- State Key Laboratory of Animal Biotech Breeding, Department of Nutrition and Health, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhengxin Ying
- State Key Laboratory of Animal Biotech Breeding, Department of Nutrition and Health, College of Biological Sciences, China Agricultural University, Beijing 100193, China; Chinese Institute for Brain Research, Beijing, No. 26 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China.
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8
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Li M, Xu J, Zou Y, Lu J, Ou A, Ma X, Zhang J, Xu Y, Fu L, Liu J, Wang X, Zhou L, Guo J. Motor neuron-specific RhoA knockout delays degeneration and promotes regeneration of dendrites in spinal ventral horn after brachial plexus injury. Neural Regen Res 2023; 18:2757-2761. [PMID: 37449641 DOI: 10.4103/1673-5374.373657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
Dendrites play irreplaceable roles in the nerve conduction pathway and are vulnerable to various insults. Peripheral axotomy of motor neurons results in the retraction of dendritic arbors, and the dendritic arbor can be re-expanded when reinnervation is allowed. RhoA is a target that regulates the cytoskeleton and promotes neuronal survival and axon regeneration. However, the role of RhoA in dendrite degeneration and regeneration is unknown. In this study, we explored the potential role of RhoA in dendrites. A line of motor neuronal RhoA conditional knockout mice was developed by crossbreeding HB9Cre+ mice with RhoAflox/flox mice. We established two models for assaying dendrite degeneration and regeneration, in which the brachial plexus was transection or crush injured, respectively. We found that at 28 days after brachial plexus transection, the density, complexity, and structural integrity of dendrites in the ventral horn of the spinal cord of RhoA conditional knockout mice were slightly decreased compared with that in Cre mice. Dendrites underwent degeneration at 7 and 14 days after brachial plexus transection and recovered at 28-56 days. The density, complexity, and structural integrity of dendrites in the ventral horn of the spinal cord of RhoA conditional knockout mice recovered compared with results in Cre mice. These findings suggest that RhoA knockout in motor neurons attenuates dendrite degeneration and promotes dendrite regeneration after peripheral nerve injury.
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Affiliation(s)
- Mi Li
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jiawei Xu
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Ying Zou
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jialing Lu
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Aiyue Ou
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xinrui Ma
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jiaqi Zhang
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Yizhou Xu
- Department of Histology and Embryology, School of Basic Medical Sciences; Department of Spine Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Lanya Fu
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jingmin Liu
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xianghai Wang
- Department of Histology and Embryology, School of Basic Medical Sciences; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University; Key Laboratory of Mental Health of the Ministry of Education, Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangdong Province Key Laboratory of Psychiatric Disorders, Guangzhou, Guangdong Province, China
| | - Libing Zhou
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Jiasong Guo
- Department of Histology and Embryology, School of Basic Medical Sciences; Department of Spine Orthopedics, Zhujiang Hospital; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University; Key Laboratory of Mental Health of the Ministry of Education, Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangdong Province Key Laboratory of Psychiatric Disorders, Guangzhou, Guangdong Province, China
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9
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Gonthier A, Botvinick EL, Grosberg A, Mohraz A. Effect of Porous Substrate Topographies on Cell Dynamics: A Computational Study. ACS Biomater Sci Eng 2023; 9:5666-5678. [PMID: 37713253 PMCID: PMC10565724 DOI: 10.1021/acsbiomaterials.3c01008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 08/31/2023] [Indexed: 09/16/2023]
Abstract
Controlling cell-substrate interactions via the microstructural characteristics of biomaterials offers an advantageous path for modulating cell dynamics, mechanosensing, and migration, as well as for designing immune-modulating implants, all without the drawbacks of chemical-based triggers. Specifically, recent in vivo studies have suggested that a porous implant's microscale curvature landscape can significantly impact cell behavior and ultimately the immune response. To investigate such cell-substrate interactions, we utilized a 3D computational model incorporating the minimum necessary physics of cell migration and cell-substrate interactions needed to replicate known in vitro behaviors. This model specifically incorporates the effect of membrane tension, which was found to be necessary to replicate in vitro cell behavior on curved surfaces. Our simulated substrates represent two classes of porous materials recently used in implant studies, which have markedly different microscale curvature distributions and pore geometries. We found distinct differences between the overall migration behaviors, shapes, and actin polymerization dynamics of cells interacting with the two substrates. These differences were correlated to the shape energy of the cells as they interacted with the porous substrates, in effect interpreting substrate topography as an energetic landscape interrogated by cells. Our results demonstrate that microscale curvature directly influences cell shape and migration and, therefore, is likely to influence cell behavior. This supports further investigation of the relationship between the surface topography of implanted materials and the characteristic immune response, a complete understanding of which would broadly advance principles of biomaterial design.
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Affiliation(s)
- Alyse
R. Gonthier
- Department
of Materials Science & Engineering, University of California, Irvine, Irvine, California 92697, United States
| | - Elliot L. Botvinick
- Department
of Biomedical Engineering, University of
California, Irvine, Irvine, California 92697, United States
- Center
for Complex Biological Systems, University
of California, Irvine, Irvine, California 92697, United States
- Beckman
Laser Institute and Medical Clinic, University
of California, Irvine, Irvine, California 92697, United States
- Department
of Surgery,University of California, Irvine, Irvine, California 92697, United States
- Edwards
Lifesciences
Foundation Cardiovascular Innovation & Research Center, University of California, Irvine, Irvine, California 92697, United States
| | - Anna Grosberg
- Department
of Biomedical Engineering, University of
California, Irvine, Irvine, California 92697, United States
- Center
for Complex Biological Systems, University
of California, Irvine, Irvine, California 92697, United States
- Edwards
Lifesciences
Foundation Cardiovascular Innovation & Research Center, University of California, Irvine, Irvine, California 92697, United States
- Department
of Chemical & Biomolecular Engineering, University of California, Irvine, Irvine, California 92697, United States
- The
NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, California 92697, United States
- Sue
and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, California 92697, United States
| | - Ali Mohraz
- Department
of Materials Science & Engineering, University of California, Irvine, Irvine, California 92697, United States
- Department
of Chemical & Biomolecular Engineering, University of California, Irvine, Irvine, California 92697, United States
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10
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Xu Y, Hu X, Cai J, Li Y, Zou Y, Wang Y, Xie C, Xu S, Wang Y, Zheng Y, Mahamat DA, Xu Y, Wang X, Li X, Liu A, Chen D, Zhu L, Guo J. Atractylenolide-III alleviates osteoarthritis and chondrocyte senescence by targeting NF-κB signaling. Phytother Res 2023; 37:4607-4620. [PMID: 37380363 DOI: 10.1002/ptr.7929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/01/2023] [Accepted: 06/10/2023] [Indexed: 06/30/2023]
Abstract
Atractylenolide-III (AT-III) is well known as its role in antioxidant and anti-inflammatory. Present study was aimed to figure out its effects on osteoarthritis and potential mechanisms. Rat model, human osteoarthritis cartilage explants as well as rat/human chondrocyte cultures were prepared to test AT-III's effects on osteoarthritis progression and chondrocyte senescence. Potential targeted molecules of AT-III were predicted using network pharmacology and molecular docking, assessed by Western blotting and then verified with rescue experiments. AT-III treatment alleviated osteoarthritis severity (shown by OARSI grading score and micro-CT) and chondrocyte senescence (indexed by levels of SA-β-gal, P16, P53, MMP13, ROS and ratio of healthy/collapsed mitochondrial membrane potentials). Network pharmacology and molecular docking suggested that AT-III might play role through NF-κB pathway. Further experiments revealed that AT-III reduced phosphorylation of IKKα/β, IκBα and P65 in NF-κB pathway. As well as nuclear translocation of p65. Both in vivo and in vitro experiments indicated that AT-III's effects on osteoarthritis and anti-senescence were reversed by an NF-κB agonist. AT-III could alleviate osteoarthritis by inhibiting chondrocyte senescence through NF-κB pathway, which indicated that AT-III is a prospective drug for osteoarthritis treatment.
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Affiliation(s)
- Yizhou Xu
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaofang Hu
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Jiale Cai
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yunlun Li
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Ying Zou
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yihan Wang
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Changnan Xie
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Shuyi Xu
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yanqing Wang
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuli Zheng
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Djibril Adam Mahamat
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yuantao Xu
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xianghai Wang
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xican Li
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Aijun Liu
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Dongfeng Chen
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lixin Zhu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jiasong Guo
- Department of Histology and Embryology, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, National Demonstration Center for Experimental Education, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China
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11
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Liu C, Liu D, Zhang X, Hui L, Zhao L. Nanofibrous polycaprolactone/amniotic membrane facilitates peripheral nerve regeneration by promoting macrophage polarization and regulating inflammatory microenvironment. Int Immunopharmacol 2023; 121:110507. [PMID: 37356125 DOI: 10.1016/j.intimp.2023.110507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/30/2023] [Accepted: 06/12/2023] [Indexed: 06/27/2023]
Abstract
Appropriate levels of inflammation are an important part of functional repair of nerve damage. However, excessive inflammation can cause the continuous activation of immune inflammatory cells and degeneration of nerve cells. Regulating the temporal and spatial changes in M1/M2 macrophages can regulate the local inflammatory immune environment of the tissue to promote its transformation to a direction conducive to tissue repair.In the present study, a multi-layer multifunctional nanofiber composite membrane of polycaprolactone(PCL) and amniotic membrane (AM) was constructed using electrospinning. In vitro studies have shown that the PCL/AM composite promoted the axon growth of SH-SY5Y cells and induced their differentiation into neurons. The PCL/AM composite wrapped the nerve stump to form a microenvironment that was conducive to nerve regeneration, blocked the invasion of scar tissue, promoted the recruitment of macrophages and moderate polarization to M2, enhanced the expression of anti-inflammatory factors IL-10 and IL-13, inhibited the expression of pro-inflammatory factors IL-6 and TNF-α, and induced myelin sheath and axon regeneration. By releasing various bioactive substances to regulate the polarization of M2 macrophages and formation of anti-inflammatory factors, the PCL/AM composite can enhance axonal regeneration and improve nerve repair.
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Affiliation(s)
- Chunjie Liu
- Xingtai People's Hospital Postdoctoral Workstation, Xingtai People's Hospital, Xingtai 054031, China; Postdoctoral Mobile Station, Hebei Medical University, Shijiazhuang 050017, China; Department of Orthopedics, Tangshan Workers Hospital, Tangshan 063000, China
| | - Dengxiang Liu
- Institute of Cancer Control, Xingtai People's Hospital, Xingtai 054001, China; Xingtai Key Laboratory of Precision Medicine for Liver Cirrhosis and Portal Hypertension, Xingtai People's Hospital, Xingtai 054001, China
| | - Xiaochong Zhang
- Department of Research and Education, Xingtai People's Hospital, Xingtai 054031, China
| | - Limin Hui
- Department of Gynecology, Xingtai People's Hospital, Xingtai 054001, China
| | - Lili Zhao
- Xingtai People's Hospital Postdoctoral Workstation, Xingtai People's Hospital, Xingtai 054031, China; Department of Orthopedics, Xingtai People's Hospital, Xingtai 054031, China.
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12
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Liu J, Ma X, Hu X, Wen J, Zhang H, Xu J, He Y, Wang X, Guo J. Schwann cell‐specific
RhoA
knockout accelerates peripheral nerve regeneration via promoting Schwann cell dedifferentiation. Glia 2023; 71:1715-1728. [PMID: 36971019 DOI: 10.1002/glia.24365] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/17/2023] [Accepted: 02/23/2023] [Indexed: 03/29/2023]
Abstract
Our previous studies indicated that RhoA knockdown or inhibition could alleviate the proliferation, migration, and differentiation of Schwann cells. However, the role of RhoA in Schwann cells during nerve injury and repair is still unknown. Herein, we developed two lines of Schwann cells conditional RhoA knockout (cKO) mice by breeding RhoAflox / flox mice with PlpCre -ERT2 or DhhCre mice. Our results indicate that RhoA cKO in Schwann cells accelerates axonal regrowth and remyelination after sciatic nerve injury, which enhances the recovery of nerve conduction and hindlimb gait, and alleviates the amyotrophy in gastrocnemius muscle. Mechanistic studies in both in vivo and in vitro models revealed that RhoA cKO could facilitate Schwann cell dedifferentiation via JNK pathway. Schwann cell dedifferentiation subsequently promotes Wallerian degeneration by enhancing phagocytosis and myelinophagy, as well as stimulating the production of neurotrophins (NT-3, NGF, BDNF, and GDNF). These findings shed light on the role of RhoA in Schwann cells during nerve injury and repair, indicating that cell type-specific RhoA targeting could serve as a promising molecular therapeutic strategy for peripheral nerve injury.
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13
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Hu X, Xu Y, Xu Y, Li Y, Guo J. Nanotechnology and Nanomaterials in Peripheral Nerve Repair and Reconstruction. Nanomedicine (Lond) 2023. [DOI: 10.1007/978-981-16-8984-0_30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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14
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Corydalis decumbens Alleviates the Migration, Phagocytosis, and Inflammatory Response of Macrophages. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2023; 2023:7000477. [PMID: 36874618 PMCID: PMC9977534 DOI: 10.1155/2023/7000477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/05/2023] [Accepted: 01/30/2023] [Indexed: 02/25/2023]
Abstract
Background The role of Corydalis decumbens (CD) in macrophage activation remains unclear, particularly in the Ras homolog family member A (RhoA) signaling pathway. Therefore, the present study aimed to investigate the effect of CD on the viability, proliferation, morphological changes, migration, phagocytosis, differentiation, and release of inflammatory factors and signaling pathways in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Methods Cell counting kit-8 and water-soluble tetrazolium salt assays were used to evaluate the viability and proliferation of RAW264.7 macrophages. A transwell assay was examined to assess cell migration. The ingestion of lumisphere assay was employed to detect the phagocytic capacity of macrophages. Phalloidin staining was performed to observe morphological changes in the macrophages. An enzyme-linked immunosorbent assay was performed to quantify inflammation-related cytokines in cell culture supernatants. Cellular immunofluorescence and western blotting were adopted to show the expression of inflammation-related factors, biomarkers of M1/M2 subset macrophages, and factors of the RhoA signaling pathway. Results We found that CD increased the viability and proliferation of RAW264.7 macrophages. CD also impaired the migration and phagocytic capacity of macrophages, induced anti-inflammatory M2 macrophage polarization, such as M2-like morphological changes, and upregulated M2 macrophage biomarkers and anti-inflammatory factors. We also observed that CD inactivated the RhoA signaling pathway. Conclusions CD mediates the activation of LPS-stimulated macrophages, alleviates the inflammatory responses of macrophages, and activates related signaling pathways induced by LPS.
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15
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Korvenlaita N, Louhivuori L. Re-Analysis of Single-Nucleus Transcriptomics Reveals Diverse Dorsal Root Ganglia Macrophage Responses Following Peripheral Nerve Injury. Biomedicines 2022; 10:biomedicines10123295. [PMID: 36552051 PMCID: PMC9775330 DOI: 10.3390/biomedicines10123295] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
An increasing amount of evidence points to an important role of macrophages in peripheral nerve injury (PNI) and associated pain. Peripheral nerve macrophages facilitate the regeneration, while dorsal root ganglia (DRG) macrophages might propagate the injury after a PNI. These differences might be explained by various in vivo models of PNIs or non-uniform methodologies to phenotype the macrophages. Unbiased methods to phenotype macrophages using single whole cell or nucleus transcriptomics have been rarely applied on PNIs outside the nerves themselves. Here, we compare the effects of the transection or crush of the sciatic nerve and spinal nerve transection on the DRG macrophage phenotypes utilizing a publicly available single-nucleus transcriptomic DRG dataset. Our results demonstrate that unique and time-dependent DRG macrophage gene expression profiles were produced by the three PNI models with particular macrophage clusters being enriched that were dependent on the severity of the neuronal injury score. PNI associated DRG macrophages were not purely anti- or pro-inflammatory. These results suggest that various functions of DRG macrophage subtypes are carefully orchestrated upon a PNI. These findings open a new avenue for studying the DRG macrophage subtypes in PNIs and encourage further unbiased phenotyping efforts to better understand their relevance in neuropathic pain.
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Affiliation(s)
- Nea Korvenlaita
- Orion Corporation, Orion Pharma, 20380 Turku, Finland
- Correspondence:
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16
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miR-301a Deficiency Attenuates the Macrophage Migration and Phagocytosis through YY1/CXCR4 Pathway. Cells 2022; 11:cells11243952. [PMID: 36552718 PMCID: PMC9777533 DOI: 10.3390/cells11243952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022] Open
Abstract
(1) Background: the miR-301a is well known involving the proliferation and migration of tumor cells. However, the role of miR-301a in the migration and phagocytosis of macrophages is still unclear. (2) Methods: sciatic nerve injury, liver injury models, as well as primary macrophage cultures were prepared from the miR-301a knockout (KO) and wild type (WT) mice to assess the macrophage's migration and phagocytosis capabilities. Targetscan database analysis, Western blotting, siRNA transfection, and CXCR4 inhibition or activation were performed to reveal miR301a's potential mechanism. (3) Results: the macrophage's migration and phagocytosis were significantly attenuated by the miR-301a KO both in vivo and in vitro. MiR-301a can target Yin-Yang 1 (YY1), and miR-301a KO resulted in YY1 up-regulation and CXCR4 (YY1's down-stream molecule) down-regulation. siYY1 increased the expression of CXCR4 and enhanced migration and phagocytosis in KO macrophages. Meanwhile, a CXCR4 inhibitor or agonist could attenuate or accelerate, respectively, the macrophage migration and phagocytosis. (4) Conclusions: current findings indicated that miR-301a plays important roles in a macrophage's capabilities of migration and phagocytosis through the YY1/CXCR4 pathway. Hence, miR-301a might be a promising therapeutic candidate for inflammatory diseases by adjusting macrophage bio-functions.
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17
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Hu X, Xu Y, Xu Y, Li Y, Guo J. Nanotechnology and Nanomaterials in Peripheral Nerve Repair and Reconstruction. Nanomedicine (Lond) 2022. [DOI: 10.1007/978-981-13-9374-7_30-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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18
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Bak SJ, Kim SI, Lim SY, Kim T, Kwon SH, Lee DH. Small Reduced Graphene Oxides for Highly Efficient Oxygen Reduction Catalysts. Int J Mol Sci 2021; 22:12300. [PMID: 34830182 PMCID: PMC8625579 DOI: 10.3390/ijms222212300] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/08/2021] [Accepted: 11/12/2021] [Indexed: 01/11/2023] Open
Abstract
We demonstrated highly efficient oxygen reduction catalysts composed of uniform Pt nanoparticles on small, reduced graphene oxides (srGO). The reduced graphene oxide (rGO) size was controlled by applying ultrasonication, and the resultant srGO enabled the morphological control of the Pt nanoparticles. The prepared catalysts provided efficient surface reactions and exhibited large surface areas and high metal dispersions. The resulting Pt/srGO samples exhibited excellent oxygen reduction performance and high stability over 1000 cycles of accelerated durability tests, especially the sample treated with 2 h of sonication. Detailed investigations of the structural and electrochemical properties of the resulting catalysts suggested that both the chemical functionality and electrical conductivity of these samples greatly influence their enhanced oxygen reduction efficiency.
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Affiliation(s)
- Su-Jeong Bak
- Green Materials and Processes R&D Group, Korea Institute of Industrial Technology, Ulsan 44413, Korea; (S.-J.B.); (S.-I.K.); (S.-y.L.); (T.K.)
- Department of Materials Science & Engineering, Pusan National University, Busan 46241, Korea
| | - Sun-I Kim
- Green Materials and Processes R&D Group, Korea Institute of Industrial Technology, Ulsan 44413, Korea; (S.-J.B.); (S.-I.K.); (S.-y.L.); (T.K.)
| | - Su-yeong Lim
- Green Materials and Processes R&D Group, Korea Institute of Industrial Technology, Ulsan 44413, Korea; (S.-J.B.); (S.-I.K.); (S.-y.L.); (T.K.)
- Department of Materials Science & Engineering, Pusan National University, Busan 46241, Korea
| | - Taehyo Kim
- Green Materials and Processes R&D Group, Korea Institute of Industrial Technology, Ulsan 44413, Korea; (S.-J.B.); (S.-I.K.); (S.-y.L.); (T.K.)
| | - Se-Hun Kwon
- Department of Materials Science & Engineering, Pusan National University, Busan 46241, Korea
| | - Duck Hyun Lee
- Green Materials and Processes R&D Group, Korea Institute of Industrial Technology, Ulsan 44413, Korea; (S.-J.B.); (S.-I.K.); (S.-y.L.); (T.K.)
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