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Li W, Cao J, Liu J, Chen S, Dai M, Zhang M, Hou X, Wang J, Kang Z. Protective effect of Tetrandrine on optic nerve by inhibiting glial activation through NF-κB pathway. Heliyon 2024; 10:e24749. [PMID: 38370256 PMCID: PMC10867623 DOI: 10.1016/j.heliyon.2024.e24749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 12/09/2023] [Accepted: 01/12/2024] [Indexed: 02/20/2024] Open
Abstract
Introduction This study aimed to explore the effect and molecular mechanism of Tetrandrine (Tet) onlipopolysaccharide (LPS)-induceduveitis andoptic nerve injury in vivo and in vitro. Methods Uveitis was induced by LPS injected into the hindlimb foot pad of Wistar rats and was intervened by retroeyeball injection of Tet (100 nM, 1 μM or 10 μM).The anterior segment inflammation was observed by slit lamp. Tunelassay was used to detect the survival state of ganglion cells and nuclear layers of inner and outer. The detection of characteristic markers in different activation states of glial cells were performed by qualitative and quantitative test of immunofluorescence and western blotting. Also, western blotting was used to detect the expression of inflammatory factors in retina and the activation of nuclear factor kappa B (NF-κB) signal pathway. Meanwhile, routine blood test and function of liver and renal were performed. Results The ciliary hyperemia was obvious, and the iris vessels were dilated and tortuous in rats with LPS-induced uveitis. Tet-pretreated obviously elieved these symptoms. In addition, the dilation and hyperemia in Tet group were alleviated compared with LPS group, and the inflammatory scores in Tetgroup were significantly lower than those of LPS group. TUNEL Staining showed that the number ofretinal ganglion cell (RGCs) in Tetgroup was slightly less than that in normal group, but significantly more than that in LPS group, and the cells arranged orderly. Besides, the number of apoptotic cells was significantly less than that in LPS group. Tet reduced LPS-activated gliocyte in a dose-dependent manner. Tumour necrosis factor alpha (TNF-α), interleukin (IL)-1β, interferon gamma (γ-IFN) and IL-2 in retina were increased by LPS but decreased significantly viaTet-pretreatment. Moreover, LPS activate NF-κB signal pathway, while Tet efficiently inhibited this effect.Furthermore, injection of Tet did not damage theroutineblood, liver and kidney. Conclusions Retrobulbar injection of Tet significantly alleviatedLPS-induced uveitisand optic nerve injuryof rats by activating gliocyte and NF-κB signaling pathway.
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Affiliation(s)
- Weiyi Li
- Department of Ophthalmology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China
- School of Ophthalmology & Optometry Affiliated to Shenzhen University, Shenzhen, 518040, Guangdong, China
- Eye Hospital, China Academy of Chinese Medical Sciences, Shijingshan, 100040, Beijing, China
| | - Jing Cao
- Yinan Branch of Qilu Hospital of Shandong University, Linyi, 276300, Shandong, China
| | - Jian Liu
- Eye Hospital, China Academy of Chinese Medical Sciences, Shijingshan, 100040, Beijing, China
| | - Shuiling Chen
- Eye Hospital, China Academy of Chinese Medical Sciences, Shijingshan, 100040, Beijing, China
| | - Min Dai
- Eye Hospital, China Academy of Chinese Medical Sciences, Shijingshan, 100040, Beijing, China
| | - Mingming Zhang
- Eye Hospital, China Academy of Chinese Medical Sciences, Shijingshan, 100040, Beijing, China
| | - Xinyue Hou
- Eye Hospital, China Academy of Chinese Medical Sciences, Shijingshan, 100040, Beijing, China
| | - Jianquan Wang
- Eye Hospital, China Academy of Chinese Medical Sciences, Shijingshan, 100040, Beijing, China
| | - Zefeng Kang
- Eye Hospital, China Academy of Chinese Medical Sciences, Shijingshan, 100040, Beijing, China
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Piñero G, Vence M, Aranda ML, Cercato MC, Soto PA, Usach V, Setton-Avruj PC. All the PNS is a Stage: Transplanted Bone Marrow Cells Play an Immunomodulatory Role in Peripheral Nerve Regeneration. ASN Neuro 2023; 15:17590914231167281. [PMID: 37654230 PMCID: PMC10475269 DOI: 10.1177/17590914231167281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 02/28/2023] [Accepted: 03/16/2023] [Indexed: 09/02/2023] Open
Abstract
SUMMARY STATEMENT Bone marrow cell transplant has proven to be an effective therapeutic approach to treat peripheral nervous system injuries as it not only promoted regeneration and remyelination of the injured nerve but also had a potent effect on neuropathic pain.
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Affiliation(s)
- Gonzalo Piñero
- Departamento de Química Biológica, Cátedra de Química Biológica Patalógica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
- Universidad de Buenos Aires-CONICET, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Ciudad Autónoma de Buenos Aires, Argentina
- Department of Pathology, Mount Sinai Hospital, New York, NY, USA
| | - Marianela Vence
- Universidad de Buenos Aires-CONICET, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Ciudad Autónoma de Buenos Aires, Argentina
| | - Marcos L. Aranda
- Universidad de Buenos Aires-CONICET, Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Ciudad Autónoma de Buenos Aires, Argentina
- Department of Neurobiology, Weinberg College of Arts and Sciences, Northwestern University, Evanston, IL, USA
| | - Magalí C. Cercato
- Universidad de Buenos Aires-CONICET, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Ciudad Autónoma de Buenos Aires, Argentina
| | - Paula A. Soto
- Departamento de Química Biológica, Cátedra de Química Biológica Patalógica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
- Universidad de Buenos Aires-CONICET, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Ciudad Autónoma de Buenos Aires, Argentina
| | - Vanina Usach
- Departamento de Química Biológica, Cátedra de Química Biológica Patalógica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
- Universidad de Buenos Aires-CONICET, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Ciudad Autónoma de Buenos Aires, Argentina
| | - Patricia C. Setton-Avruj
- Departamento de Química Biológica, Cátedra de Química Biológica Patalógica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
- Universidad de Buenos Aires-CONICET, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Ciudad Autónoma de Buenos Aires, Argentina
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Xu K, Yu L, Wang Z, Lin P, Zhang N, Xing Y, Yang N. Use of gene therapy for optic nerve protection: Current concepts. Front Neurosci 2023; 17:1158030. [PMID: 37090805 PMCID: PMC10117674 DOI: 10.3389/fnins.2023.1158030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 03/20/2023] [Indexed: 04/25/2023] Open
Abstract
Gene therapy has become an essential treatment for optic nerve injury (ONI) in recent years, and great strides have been made using animal models. ONI, which is characterized by the loss of retinal ganglion cells (RGCs) and axons, can induce abnormalities in the pupil light reflex, visual field defects, and even vision loss. The eye is a natural organ to target with gene therapy because of its high accessibility and certain immune privilege. As such, numerous gene therapy trials are underway for treating eye diseases such as glaucoma. The aim of this review was to cover research progress made in gene therapy for ONI. Specifically, we focus on the potential of gene therapy to prevent the progression of neurodegenerative diseases and protect both RGCs and axons. We cover the basic information of gene therapy, including the classification of gene therapy, especially focusing on genome editing therapy, and then we introduce common editing tools and vector tools such as Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) -Cas9 and adeno-associated virus (AAV). We also summarize the progress made on understanding the roles of brain derived neurotrophic factor (BDNF), ciliary neurotrophic factor (CNTF), phosphatase-tensin homolog (PTEN), suppressor of cytokine signal transduction 3 (SOCS3), histone acetyltransferases (HATs), and other important molecules in optic nerve protection. However, gene therapy still has many challenges, such as misalignment and mutations, immunogenicity of AAV, time it takes and economic cost involved, which means that these issues need to be addressed before clinical trials can be considered.
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Affiliation(s)
- Kexin Xu
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Lu Yu
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- Department of Ophthalmology, Aier Eye Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhiyi Wang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Pei Lin
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ningzhi Zhang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yiqiao Xing
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- Department of Ophthalmology, Aier Eye Hospital of Wuhan University, Wuhan, Hubei, China
- *Correspondence: Yiqiao Xing,
| | - Ning Yang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- Ning Yang,
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Peterson SL, Li Y, Sun CJ, Wong KA, Leung KS, de Lima S, Hanovice NJ, Yuki K, Stevens B, Benowitz LI. Retinal Ganglion Cell Axon Regeneration Requires Complement and Myeloid Cell Activity within the Optic Nerve. J Neurosci 2021; 41:8508-8531. [PMID: 34417332 PMCID: PMC8513703 DOI: 10.1523/jneurosci.0555-21.2021] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/21/2021] [Accepted: 08/16/2021] [Indexed: 01/01/2023] Open
Abstract
Axon regenerative failure in the mature CNS contributes to functional deficits following many traumatic injuries, ischemic injuries, and neurodegenerative diseases. The complement cascade of the innate immune system responds to pathogen threat through inflammatory cell activation, pathogen opsonization, and pathogen lysis, and complement is also involved in CNS development, neuroplasticity, injury, and disease. Here, we investigated the involvement of the classical complement cascade and microglia/monocytes in CNS repair using the mouse optic nerve injury (ONI) model, in which axons arising from retinal ganglion cells (RGCs) are disrupted. We report that central complement C3 protein and mRNA, classical complement C1q protein and mRNA, and microglia/monocyte phagocytic complement receptor CR3 all increase in response to ONI, especially within the optic nerve itself. Importantly, genetic deletion of C1q, C3, or CR3 attenuates RGC axon regeneration induced by several distinct methods, with minimal effects on RGC survival. Local injections of C1q function-blocking antibody revealed that complement acts primarily within the optic nerve, not retina, to support regeneration. Moreover, C1q opsonizes and CR3+ microglia/monocytes phagocytose growth-inhibitory myelin debris after ONI, a likely mechanism through which complement and myeloid cells support axon regeneration. Collectively, these results indicate that local optic nerve complement-myeloid phagocytic signaling is required for CNS axon regrowth, emphasizing the axonal compartment and highlighting a beneficial neuroimmune role for complement and microglia/monocytes in CNS repair.SIGNIFICANCE STATEMENT Despite the importance of achieving axon regeneration after CNS injury and the inevitability of inflammation after such injury, the contributions of complement and microglia to CNS axon regeneration are largely unknown. Whereas inflammation is commonly thought to exacerbate the effects of CNS injury, we find that complement proteins C1q and C3 and microglia/monocyte phagocytic complement receptor CR3 are each required for retinal ganglion cell axon regeneration through the injured mouse optic nerve. Also, whereas studies of optic nerve regeneration generally focus on the retina, we show that the regeneration-relevant role of complement and microglia/monocytes likely involves myelin phagocytosis within the optic nerve. Thus, our results point to the importance of the innate immune response for CNS repair.
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Affiliation(s)
- Sheri L Peterson
- Laboratories for Neuroscience Research in Neurosurgery
- Department of Neurosurgery
- F.M. Kirby Neurobiology Center, and
- Department of Neurosurgery and
| | - Yiqing Li
- Laboratories for Neuroscience Research in Neurosurgery
- Department of Neurosurgery
- F.M. Kirby Neurobiology Center, and
- Department of Neurosurgery and
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong China, 510060
| | - Christina J Sun
- Laboratories for Neuroscience Research in Neurosurgery
- Department of Neurosurgery
| | - Kimberly A Wong
- Laboratories for Neuroscience Research in Neurosurgery
- Department of Neurosurgery
- F.M. Kirby Neurobiology Center, and
- Department of Neurosurgery and
| | - Kylie S Leung
- Laboratories for Neuroscience Research in Neurosurgery
- Department of Neurosurgery
| | - Silmara de Lima
- Laboratories for Neuroscience Research in Neurosurgery
- Department of Neurosurgery
- F.M. Kirby Neurobiology Center, and
- Department of Neurosurgery and
| | - Nicholas J Hanovice
- Laboratories for Neuroscience Research in Neurosurgery
- Department of Neurosurgery
- F.M. Kirby Neurobiology Center, and
- Department of Neurosurgery and
| | - Kenya Yuki
- Laboratories for Neuroscience Research in Neurosurgery
- Department of Neurosurgery
- F.M. Kirby Neurobiology Center, and
- Department of Neurosurgery and
| | - Beth Stevens
- F.M. Kirby Neurobiology Center, and
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115
- Stanley Center for Psychiatric Research, Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, Massachusetts 02142
| | - Larry I Benowitz
- Laboratories for Neuroscience Research in Neurosurgery
- Department of Neurosurgery
- F.M. Kirby Neurobiology Center, and
- Department of Neurosurgery and
- Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02115
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Hyperoside Attenuate Inflammation in HT22 Cells via Upregulating SIRT1 to Activities Wnt/ β-Catenin and Sonic Hedgehog Pathways. Neural Plast 2021; 2021:8706400. [PMID: 34221003 PMCID: PMC8213468 DOI: 10.1155/2021/8706400] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 06/03/2021] [Indexed: 02/05/2023] Open
Abstract
Neuroinflammation plays important roles in the pathogenesis and progression of altered neurodevelopment, sensorineural hearing loss, and certain neurodegenerative diseases. Hyperoside (quercetin-3-O-β-D-galactoside) is an active compound isolated from Hypericum plants. In this study, we investigate the protective effect of hyperoside on neuroinflammation and its possible molecular mechanism. Lipopolysaccharide (LPS) and hyperoside were used to treat HT22 cells. The cell viability was measured by MTT assay. The cell apoptosis rate was measured by flow cytometry assay. The mRNA expression levels of interleukin-1β (IL-1β), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor-α (TNF-α) were determined by quantitative reverse transcription polymerase chain reaction. The levels of oxidative stress indices superoxide dismutase (SOD), reactive oxygen species (ROS), catalase (CAT), glutathione (GSH), and malondialdehyde (MDA) were measured by the kits. The expression of neurotrophic factor and the relationship among hyperoside, silent mating type information regulation 2 homolog-1 (SIRT1) and Wnt/β-catenin, and sonic hedgehog was examined by western blotting. In the LPS-induced HT22 cells, hyperoside promotes cell survival; alleviates the level of IL-1β, IL-6, IL-8, TNF-α, ROS, MDA, Bax, and caspase-3; and increases the expression of CAT, SOD, GSH, Bcl-2, BDNF, TrkB, and NGF. In addition, hyperoside upregulated the expression of SIRT1. Further mechanistic investigation showed that hyperoside alleviated LPS-induced inflammation, oxidative stress, and apoptosis by upregulating SIRT1 to activate Wnt/β-catenin and sonic hedgehog pathways. Taken together, our data suggested that hyperoside acts as a protector in neuroinflammation.
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Suppression of microglial activation and monocyte infiltration ameliorates cerebellar hemorrhage induced-brain injury and ataxia. Brain Behav Immun 2020; 89:400-413. [PMID: 32717406 DOI: 10.1016/j.bbi.2020.07.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/20/2020] [Accepted: 07/20/2020] [Indexed: 02/07/2023] Open
Abstract
Ataxia, characterized by uncoordinated movement, is often found in patients with cerebellar hemorrhage (CH), leading to long-term disability without effective management. Microglia are among the first responders to CNS insult. Yet the role and mechanism of microglia in cerebellar injury and ataxia after CH are still unknown. Using Ki20227, an inhibitor for colony-stimulating factor 1 receptor which mediates the signaling responsible for the survival of microglia, we determined the impact of microglial depletion on cerebellar injury and ataxia in a murine model of CH. Microglial depletion reduced cerebellar lesion volume and alleviated gait abnormality, motor incoordination, and locomotor dysfunction after CH. Suppression of CH-initiated microglial activation with minocycline ameliorated cerebellum infiltration of monocytes/macrophages, as well as production of proinflammatory cytokines and chemokine C-C motif ligand-2 (CCL-2) that recruits monocytes/macrophages. Furthermore, both minocycline and bindarit, a CCL-2 inhibitor, prevented apoptosis and electrophysiological dysfunction of Purkinje cells, the principal neurons and sole outputs of the cerebellar cortex, and consequently improved ataxia-like motor abnormalities. Our findings suggest a detrimental role of microglia in neuroinflammation and ataxic motor symptoms after CH, and pave a new path to understand the neuroimmune mechanism underlying CH-induced cerebellar ataxia.
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Yue D, Zhao J, Chen H, Guo M, Chen C, Zhou Y, Xu L. MicroRNA-7, synergizes with RORα, negatively controls the pathology of brain tissue inflammation. J Neuroinflammation 2020; 17:28. [PMID: 31959187 PMCID: PMC6970296 DOI: 10.1186/s12974-020-1710-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 01/13/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Accumulating evidence has documented that microRNA-7 (miR-7) plays an important role in the pathology of various diseases. However, the potential role of miR-7 in brain tissue inflammation (BTI) remains unclear. METHODS We detected the expression of miR-7 in LPS-induced murine BTI model and observed the possible effects of miR-7 deficiency on the pathology of BTI. To elucidate the mechanism, the target gene of miR-7 was screened out by Gene chip assay and its potential roles in BTI were evaluated by Western blot, immunofluorescence, and RNAi assay, respectively. RESULTS MiR-7 was upregulated in brain tissue in BTI mice and its deficiency could significantly aggravate the pathology of brain tissue. Moreover, RORα, a new target molecule of miR-7, was upregulated in brain tissue from miR-7 deficiency BTI mice. Of note, downregulation of RORα could remarkably exacerbate the pathology of brain tissue and elevate the transduction of NF-κB and ERK1/2 signaling pathways in brain tissue from miR-7 deficiency BTI mice. Furthermore, RORα and miR-7 were dominantly co-expressed in neurons of BTI mice. Finally, RORα synergized with miR-7 to control the inflammatory reaction of neuronal cells in response to LPS stimulation. CONCLUSIONS MiR-7 expression is upregulated in BTI model. Moreover, miR-7 synergizes with its target gene RORα to control the inflammation reaction of neurons, thereby orchestrating the pathology of BTI.
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Affiliation(s)
- Dongxu Yue
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Juanjuan Zhao
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Huizi Chen
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Mengmeng Guo
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Chao Chen
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Ya Zhou
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Medical Physics, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Lin Xu
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China. .,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China.
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