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Fu GQ, Wang YY, Xu YM, Bian MM, Zhang L, Yan HZ, Gao JX, Li JL, Chen YQ, Zhang N, Ding SQ, Wang R, Li JY, Hu JG, Lü HZ. Exosomes derived from vMIP-II-Lamp2b gene-modified M2 cells provide neuroprotection by targeting the injured spinal cord, inhibiting chemokine signals and modulating microglia/macrophage polarization in mice. Exp Neurol 2024; 377:114784. [PMID: 38642665 DOI: 10.1016/j.expneurol.2024.114784] [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: 02/06/2024] [Revised: 04/07/2024] [Accepted: 04/18/2024] [Indexed: 04/22/2024]
Abstract
Inflammation is one of the key injury factors for spinal cord injury (SCI). Exosomes (Exos) derived from M2 macrophages have been shown to inhibit inflammation and be beneficial in SCI animal models. However, lacking targetability restricts their application prospects. Considering that chemokine receptors increase dramatically after SCI, viral macrophage inflammatory protein II (vMIP-II) is a broad-spectrum chemokine receptor binding peptide, and lysosomal associated membrane protein 2b (Lamp2b) is the key membrane component of Exos, we speculated that vMIP-II-Lamp2b gene-modified M2 macrophage-derived Exos (vMIP-II-Lamp2b-M2-Exo) not only have anti-inflammatory properties, but also can target the injured area by vMIP-II. In this study, using a murine contusive SCI model, we revealed that vMIP-II-Lamp2b-M2-Exo could target the chemokine receptors which highly expressed in the injured spinal cords, inhibit some key chemokine receptor signaling pathways (such as MAPK and Akt), further inhibit proinflammatory factors (such as IL-1β, IL-6, IL-17, IL-18, TNF-α, and iNOS), and promote anti-inflammatory factors (such as IL-4 and Arg1) productions, and the transformation of microglia/macrophages from M1 into M2. Moreover, the improved histological and functional recoveries were also found. Collectively, our results suggest that vMIP-II-Lamp2b-M2-Exo may provide neuroprotection by targeting the injured spinal cord, inhibiting some chemokine signals, reducing proinflammatory factor production and modulating microglia/macrophage polarization.
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Affiliation(s)
- Gui-Qiang Fu
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Department of Immunology, Bengbu Medical College, and Anhui Key Laboratory of Infection and Immunity at Bengbu Medical University, Bengbu, Anhui 233030, PR China; Department of Clinical Laboratory, Air Force Medical Center, Air Force Medical University, Beijing, 100142, PR China
| | - Yang-Yang Wang
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China
| | - Yao-Mei Xu
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China
| | - Ming-Ming Bian
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Department of Immunology, Bengbu Medical College, and Anhui Key Laboratory of Infection and Immunity at Bengbu Medical University, Bengbu, Anhui 233030, PR China
| | - Lin Zhang
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, Anhui 233030, PR China
| | - Hua-Zheng Yan
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China
| | - Jian-Xiong Gao
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, Anhui 233030, PR China
| | - Jing-Lu Li
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China
| | - Yu-Qing Chen
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China
| | - Nan Zhang
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China
| | - Shu-Qin Ding
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China
| | - Rui Wang
- Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China
| | - Jiang-Yan Li
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China
| | - Jian-Guo Hu
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu Medical University, Bengbu, Anhui 233030, PR China.
| | - He-Zuo Lü
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, PR China; Department of Immunology, Bengbu Medical College, and Anhui Key Laboratory of Infection and Immunity at Bengbu Medical University, Bengbu, Anhui 233030, PR China; Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu Medical University, Bengbu, Anhui 233030, PR China; Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, Anhui 233030, PR China.
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2
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Zhu M, Tang X, Xu J, Gong Y. Identification of HK3 as a promising immunomodulatory and prognostic target in sepsis-induced acute lung injury. Biochem Biophys Res Commun 2024; 706:149759. [PMID: 38484574 DOI: 10.1016/j.bbrc.2024.149759] [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: 01/28/2024] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 03/24/2024]
Abstract
BACKGROUND Sepsis is a life-threatening global disease with a significant impact on human health. Acute lung injury (ALI) has been identified as one of the primary causes of mortality in septic patients. This study aimed to identify candidate genes involved in sepsis-induced ALI through a comprehensive approach combining bioinformatics analysis and experimental validation. METHODS The datasets GSE65682 and GSE32707 obtained from the Gene Expression Omnibus database were merged to screen for sepsis-induced ALI related differentially expressed genes (DEGs). Functional enrichment and immune infiltration analyses were conducted on DGEs, with the construction of protein-protein interaction (PPI) networks to identify hub genes. In vitro and in vivo models of sepsis-induced ALI were used to study the expression and function of hexokinase 3 (HK3) using various techniques including Western blot, real-time PCR, immunohistochemistry, immunofluorescence, Cell Counting Kit-8, Enzyme-linked immunosorbent assay, and flow cytometry. RESULTS The results of bioinformatics analysis have identified HK3, MMP9, and S100A8 as hub genes with diagnostic and prognostic significance for sepsis-induced ALI. The HK3 has profound effects on sepsis-induced ALI and exhibits a correlation with immune regulation. Experimental results showed increased HK3 expression in lung tissue of septic mice, particularly in bronchial and alveolar epithelial cells. In vitro studies demonstrated upregulation of HK3 in lipopolysaccharide (LPS)-stimulated lung epithelial cells, with cytoplasmic localization around the nucleus. Interestingly, following the knockdown of HK3 expression, lung epithelial cells exhibited a significant decrease in proliferation activity and glycolytic flux, accompanied by an increase in cellular inflammatory response, oxidative stress, and cell apoptosis. CONCLUSIONS It was observed for the first time that HK3 plays a crucial role in the progression of sepsis-induced ALI and may be a valuable target for immunomodulation and therapy.Bioinformatics analysis identified HK3, MMP9, and S100A8 as hub genes with diagnostic and prognostic relevance in sepsis-induced ALI. Experimental findings showed increased HK3 expression in the lung tissue of septic mice, particularly in bronchial and alveolar epithelial cells. In vitro experiments demonstrated increased HK3 levels in lung epithelial cells stimulated with LPS, with cytoplasmic localization near the nucleus. Knockdown of HK3 expression resulted in decreased proliferation activity and glycolytic flux, increased inflammatory response, oxidative stress, and cell apoptosis in lung epithelial cells.
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Affiliation(s)
- Mingyu Zhu
- Department of Intensive Care Unit, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Xiaokai Tang
- Department of Orthopaedic, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Jingjing Xu
- Department of Intensive Care Unit, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Yuanqi Gong
- Department of Intensive Care Unit, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China.
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3
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Bao C, Zhu S, Song K, He C. HK2: a potential regulator of osteoarthritis via glycolytic and non-glycolytic pathways. Cell Commun Signal 2022; 20:132. [PMID: 36042519 PMCID: PMC9426234 DOI: 10.1186/s12964-022-00943-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/20/2022] [Indexed: 01/10/2023] Open
Abstract
Osteoarthritis (OA) is an age-related chronic degenerative joint disease where the main characteristics include progressive degeneration of cartilage, varying degrees of synovitis, and periarticular osteogenesis. However, the underlying factors involved in OA pathogenesis remain elusive which has resulted in poor clinical treatment effect. Recently, glucose metabolism changes provide a new perspective on the pathogenesis of OA. Under the stimulation of external environment, the metabolic pathway of chondrocytes tends to change from oxidative phosphorylation (OXPHOS) to aerobic glycolysis. Previous studies have demonstrated that glycolysis of synovial tissue is increased in OA. The hexokinase (HK) is the first rate limiting enzyme in aerobic glycolysis, participating and catalyzing the main pathway of glucose utilization. An isoform of HKs, HK2 is considered to be a key regulator of glucose metabolism, promotes the transformation of glycolysis from OXPHOS to aerobic glycolysis. Moreover, the expression level of HK2 in OA synovial tissue (FLS) was higher than that in control group, which indicated the potential therapeutic effect of HK2 in OA. However, there is no summary to help us understand the potential therapeutic role of glucose metabolism in OA. Therefore, this review focuses on the properties of HK2 and existing research concerning HK2 and OA. We also highlight the potential role and mechanism of HK2 in OA. Video abstract
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Affiliation(s)
- Chuncha Bao
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China.,Sichuan Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Siyi Zhu
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China. .,Sichuan Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China.
| | - Kangping Song
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China.,Sichuan Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Chengqi He
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China. .,Sichuan Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China.
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Xin Y, Song X, Ge Q. Circular RNA SMEK1 promotes neuropathic pain in rats through targeting microRNA-216a-5p to mediate Thioredoxin Interacting Protein (TXNIP) expression. Bioengineered 2021; 12:5540-5551. [PMID: 34517790 PMCID: PMC8806878 DOI: 10.1080/21655979.2021.1965811] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Neuropathic pain (NP) is a disease induced by damage to the nervous system. A large number of studies have manifested that circular RNAs (circRNAs) are key in the development of neurological diseases. However, the role of circRNA in NP remains ambiguous. In this study, the biological function and molecular mechanism of circSMEK1 were investigated in NP. NP rat and cell models were established by chronic contractile injury (CCI) surgery and lipopolysaccharide (LPS) treatment, separately. The results exposed that circSMEK1 and TXNIP were up-regulated in NP, while miR-216a-5p was down-regulated. The claw retraction threshold and claw retraction latency in rats were elevated and reduced separately via knockdown circSMEK1 and miR-216a-5p. Meanwhile, knockout circSMEK1 or elevated miR-216a-5p declined inflammatory cytokines tumor necrosis factor-α (TNF-α), interleukin (IL)-1β and IL6 in spinal cord, and the activation of microglia, but promoted the polarization of microglia into anti-inflammatory type, while up-regulation of circSMEK1 or knockdown of miR-216a-5p was opposite. Mechanism studies demonstrated that circSMEK1 mediated TXNIP expression through competitive adsorption of miR-216a-5p. Functional rescue experiments manifested that the suppressive effect of circSMEK1 knockdown on NP was reversed by declined miR-216a-5p simultaneously. In conclusion, the results of this study affirmed that circSMEK1 facilitates NP inflammation and microglia M1 polarization by modulating miR-216a-5p/TXNIP axis, providing a new molecular target for the future treatment of NP.
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Affiliation(s)
- Yufu Xin
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang City, Henan Province, 471000, China
| | - Xinrong Song
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang City, Henan Province, 471000, China
| | - Qingye Ge
- Department of Rehabilitation Medicine of Chinese Medicine Hospital of PuYang Henan, Puyang City, Henan Province, 457000, China
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Chen J, Chen YQ, Shi YJ, Ding SQ, Shen L, Wang R, Wang QY, Zha C, Ding H, Hu JG, Lü HZ. VX-765 reduces neuroinflammation after spinal cord injury in mice. Neural Regen Res 2021; 16:1836-1847. [PMID: 33510091 PMCID: PMC8328782 DOI: 10.4103/1673-5374.306096] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Inflammation is a major cause of neuronal injury after spinal cord injury. We hypothesized that inhibiting caspase-1 activation may reduce neuroinflammation after spinal cord injury, thus producing a protective effect in the injured spinal cord. A mouse model of T9 contusive spinal cord injury was established using an Infinite Horizon Impactor, and VX-765, a selective inhibitor of caspase-1, was administered for 7 successive days after spinal cord injury. The results showed that: (1) VX-765 inhibited spinal cord injury-induced caspase-1 activation and interleukin-1β and interleukin-18 secretion. (2) After spinal cord injury, an increase in M1 cells mainly came from local microglia rather than infiltrating macrophages. (3) Pro-inflammatory Th1Th17 cells were predominant in the Th subsets. VX-765 suppressed total macrophage infiltration, M1 macrophages/microglia, Th1 and Th1Th17 subset differentiation, and cytotoxic T cells activation; increased M2 microglia; and promoted Th2 and Treg differentiation. (4) VX-765 reduced the fibrotic area, promoted white matter myelination, alleviated motor neuron injury, and improved functional recovery. These findings suggest that VX-765 can reduce neuroinflammation and improve nerve function recovery after spinal cord injury by inhibiting caspase-1/interleukin-1β/interleukin-18. This may be a potential strategy for treating spinal cord injury. This study was approved by the Animal Care Ethics Committee of Bengbu Medical College (approval No. 2017-037) on February 23, 2017.
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Affiliation(s)
- Jing Chen
- Clinical Laboratory; Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College; Department of Immunology, Bengbu Medical College, and Anhui Key Laboratory of Infection and Immunity at Bengbu Medical College, Bengbu, Anhui Province, China
| | - Yu-Qing Chen
- Clinical Laboratory; Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College; Department of Immunology, Bengbu Medical College, and Anhui Key Laboratory of Infection and Immunity at Bengbu Medical College, Bengbu, Anhui Province, China
| | - Yu-Jiao Shi
- Clinical Laboratory; Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Shu-Qin Ding
- Clinical Laboratory, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Lin Shen
- Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Rui Wang
- Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Qi-Yi Wang
- Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Cheng Zha
- Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Hai Ding
- Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Jian-Guo Hu
- Clinical Laboratory; Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - He-Zuo Lü
- Clinical Laboratory; Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College; Department of Immunology, Bengbu Medical College, and Anhui Key Laboratory of Infection and Immunity at Bengbu Medical College, Bengbu, Anhui Province, China
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Rezvan M, Meknatkhah S, Hassannejad Z, Sharif-Alhoseini M, Zadegan SA, Shokraneh F, Vaccaro AR, Lu Y, Rahimi-Movaghar V. Time-dependent microglia and macrophages response after traumatic spinal cord injury in rat: a systematic review. Injury 2020; 51:2390-2401. [PMID: 32665068 DOI: 10.1016/j.injury.2020.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/28/2020] [Accepted: 07/02/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To acquire evidence-based knowledge in temporal and spatial patterns of microglia/macrophages changes to facilitate finding proper intervention time for functional restoration after traumatic spinal cord injury (TSCI). SETTING Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran. METHODS We searched PubMed and EMBASE via Ovid SP with no temporal and linguistic restrictions. Besides, hand-search was performed in the bibliographies of relevant studies. The experimental non-interventional and non-transgenic animal studies confined to the rat species which assess the pathological change of microglia /macrophages at the specified time were included. RESULTS We found 15,315 non-duplicate studies. Screening through title and abstract narrowed down to 607 relevant articles, 31 of them were selected based on the inclusion criteria. The reactivity of the microglia/macrophages initiates in early hours PI in contusion, compression and transection models. Cells activity reached a maximum within 48 h to 28 days in compression, 7 days in contusion and between 4 and 60 days in transection models. Inflammatory response occurred at the epicenter, in or near the lesion site in both gray and white matter in all three injury models with a maximum extension of one centimeter caudal and rostral to the epicenter in the gray matter in contusion and transection models. CONCLUSION This study was designed to study spatial-temporal changes in the activation of microglia/macrophages overtime after TSCI. We were able to demonstrate time-dependent cell morphological changes after TSCI. The peak times of cell reactivity and the areas where the cells responded to the injury were determined.
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Affiliation(s)
- Motahareh Rezvan
- Department of Medical Laser, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran; Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sogol Meknatkhah
- Laboratory of Neuro-Organic Chemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Zahra Hassannejad
- Pediatric Urology and Regenerative Medicine Research Center, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Sharif-Alhoseini
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shayan A Zadegan
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farhad Shokraneh
- King's Technology Evaluation Centre (KiTEC), London Institute of Healthcare Engineering, School of Biomedical Engineering and Imaging Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - Alexander R Vaccaro
- Department of Orthopedics and Neurosurgery, The Rothman Institute, Thomas Jefferson University, Philadelphia, PA, United States
| | - Yi Lu
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Vafa Rahimi-Movaghar
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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7
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Chen YQ, Wang SN, Shi YJ, Chen J, Ding SQ, Tang J, Shen L, Wang R, Ding H, Hu JG, Lü HZ. CRID3, a blocker of apoptosis associated speck like protein containing a card, ameliorates murine spinal cord injury by improving local immune microenvironment. J Neuroinflammation 2020; 17:255. [PMID: 32861243 PMCID: PMC7456508 DOI: 10.1186/s12974-020-01937-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 08/20/2020] [Indexed: 01/25/2023] Open
Abstract
Background After spinal cord injury (SCI), destructive immune cell subsets are dominant in the local microenvironment, which are the important mechanism of injury. Studies have shown that inflammasomes play an important role in the inflammation following SCI, and apoptosis-associated speck-like protein containing a card (ASC) is the adaptor protein shared by inflammasomes. Therefore, we speculated that inhibiting ASC may improve the local microenvironment of injured spinal cord. Here, CRID3, a blocker of ASC oligomerization, was used to study its effect on the local microenvironment and the possible role in neuroprotection following SCI. Methods Murine SCI model was created using an Infinite Horizon impactor at T9 vertebral level with a force of 50 kdynes and CRID3 (50 mg/kg) was intraperitoneally injected following injury. ASC and its downstream molecules in inflammasome signaling pathway were measured by western blot. The immune cell subsets were detected by immunohistofluorescence (IHF) and flow cytometry (FCM). The spinal cord fibrosis area, neuron survival, myelin preservation, and functional recovery were assessed. Results Following SCI, CRID3 administration inhibited inflammasome-related ASC and caspase-1, IL-1β, and IL-18 activation, which consequently suppressed M1 microglia, Th1 and Th1Th17 differentiation, and increased M2 microglia and Th2 differentiation. Accordingly, the improved histology and behavior have also been found. Conclusions CRID3 may ameliorate murine SCI by inhibiting inflammasome activation, reducing proinflammatory factor production, restoring immune cell subset balance, and improving local immune microenvironment, and early administration may be a promising therapeutic strategy for SCI.
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Affiliation(s)
- Yu-Qing Chen
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China.,Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China
| | - Sai-Nan Wang
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China.,Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China
| | - Yu-Jiao Shi
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China
| | - Jing Chen
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China.,Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China
| | - Shu-Qin Ding
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China
| | - Jie Tang
- Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China
| | - Lin Shen
- Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China
| | - Rui Wang
- Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China
| | - Hai Ding
- Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China
| | - Jian-Guo Hu
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China. .,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China.
| | - He-Zuo Lü
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China. .,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China. .,Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China. .,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.
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8
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Chen J, Chen YQ, Wang SN, Duan FX, Shi YJ, Ding SQ, Hu JG, Lü HZ. Effect of VX‑765 on the transcriptome profile of mice spinal cords with acute injury. Mol Med Rep 2020; 22:33-42. [PMID: 32377730 PMCID: PMC7248530 DOI: 10.3892/mmr.2020.11129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 11/18/2019] [Indexed: 12/12/2022] Open
Abstract
Previous studies have shown that caspase-1 plays an important role in the acute inflammatory response of spinal cord injury (SCI). VX‑765, a novel and irreversible caspase‑1 inhibitor, has been reported to effectively intervene in inflammation. However, the effect of VX‑765 on genome‑wide transcription in acutely injured spinal cords remains unknown. Therefore, in the present study, RNA‑sequencing (RNA‑Seq) was used to analyze the effect of VX‑765 on the local expression of gene transcription 8 h following injury. The differentially expressed genes (DEGs) underwent enrichment analysis of functions and pathways by Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses, respectively. Parallel analysis of western blot confirmed that VX‑765 can effectively inhibit the expression and activation of caspase‑1. RNA‑Seq showed that VX‑765 treatment resulted in 1,137 upregulated and 1,762 downregulated DEGs. These downregulated DEGs and their associated signaling pathways, such as focal adhesion, cytokine‑cytokine receptor interaction, leukocyte transendothelial migration, extracellular matrix‑receptor interaction, phosphatidylinositol 3‑kinase‑protein kinase B, Rap1 and hypoxia inducible factor‑1 signaling pathway, are mainly associated with inflammatory response, local hypoxia, macrophage differentiation, adhesion migration and apoptosis of local cells. This suggests that the application of VX‑765 in the acute phase can improve the local microenvironment of SCI by inhibiting caspase‑1. However, whether VX‑765 can be used as a therapeutic drug for SCI requires further exploration. The sequence data have been deposited into the Sequence Read Archive (https://www.ncbi.nlm.nih.gov/sra/PRJNA548970).
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Affiliation(s)
- Jing Chen
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Yu-Qing Chen
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Sai-Nan Wang
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Fei-Xiang Duan
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Yu-Jiao Shi
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Shu-Qin Ding
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Jian-Guo Hu
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - He-Zuo Lü
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
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Chowdhury HH. Differences in cytosolic glucose dynamics in astrocytes and adipocytes measured by FRET-based nanosensors. Biophys Chem 2020; 261:106377. [PMID: 32302866 DOI: 10.1016/j.bpc.2020.106377] [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: 02/08/2020] [Revised: 04/08/2020] [Accepted: 04/08/2020] [Indexed: 11/17/2022]
Abstract
The cellular response to fluctuations in blood glucose levels consists of integrative regulation of cell glucose uptake and glucose utilization in the cytosol, resulting in altered levels of glucose in the cytosol. Cytosolic glucose is difficult to be measured in the intact tissue, however recently methods have become available that allow measurements of glucose in single living cells with fluorescence resonance energy transfer (FRET) based protein sensors. By studying the dynamics of cytosolic glucose levels in different experimental settings, we can gain insights into the properties of plasma membrane permeability to glucose and glucose utilization in the cytosol, and how these processes are modulated by different environmental conditions, agents and enzymes. In this review, we compare the cytosolic regulation of glucose in adipocytes and astrocytes - two important regulators of energy balance and glucose homeostasis in whole body and brain, respectively, with particular emphasis on the data obtained with FRET based protein sensors as well as other biochemical and molecular approaches.
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Affiliation(s)
- Helena H Chowdhury
- Laboratory of Neuroendocrinology - Molecular Cell Physiology, Institute of Pathophysiology, University of Ljubljana, Faculty of Medicine, 1000 Ljubljana, Slovenia; Laboratory of Cell Engineering, Celica Biomedical, 1000 Ljubljana, Slovenia.
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10
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Wang N, He L, Yang Y, Li S, Chen Y, Tian Z, Ji Y, Wang Y, Pang M, Wang Y, Liu B, Rong L. Integrated analysis of competing endogenous RNA (ceRNA) networks in subacute stage of spinal cord injury. Gene 2019; 726:144171. [PMID: 31669638 DOI: 10.1016/j.gene.2019.144171] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 10/13/2019] [Accepted: 10/15/2019] [Indexed: 12/26/2022]
Abstract
This study aims to investigate the genetic and epigenetic mechanisms involved in the pathogenesis of subacute stage of spinal cord injury (SCI). Gene-expression datasets associated with SCI were downloaded from the Gene Expression Omnibus (GEO) database, and differential expression analyses were performed in order to identify differentially expressed genes (DEGs). Multiple network types were constructed and analyzed, including protein-protein-interaction (PPI) network, miRNA-target network, lncRNA-associated competing endogenous RNA (ceRNA) network, and miRNA-transcription factor (TF)-target network. Cluster analyses were performed to identify significant modules. To verify the prediction accuracy of the in-silico identified molecules, qRT-PCR experiments were conducted. The results depicted the Ywhae gene as the hub gene with the highest degree in the PPI network. The ceRNA network identified specific genes (Flna, ID3, and HK2), miRNAs (miR-16-5p, miR-1958, and miR-185-5p), and lncRNAs (Neat1, Xist, and Malat1) as playing critical regulating roles in the pathological mechanisms of SCI. The miRNA-TF-gene interaction network identified four important TFs (Sp1, Trp53, Jun, and Rela). The miRNA-gene-TF interaction loops from the significant modules indicated that miR-325-3p can interact with the Asah1 gene and TF-Sp1 by forming a closed loop. The qRT-PCR experiments verified four selected genes (Flna, ID3, HK2, and Ywhae) and two selected TFs (Jun, and Sp1) as significantly up-regulated following SCI. The results indicated that four genes (Flna, ID3, HK2, and Ywhae), four transcription factors (Sp1, Trp53, Jun, and RelA), two miRNAs (miR-16-5p and miR-325-3p), and three lncRNAs (Neat1, Xist, and Malat1) are likely to be involved in the molecular mechanisms underlying the subacute stage of SCI. These findings uncover putative pathogenic mechanisms involved in SCI and might bear translation significance for future research towards therapeutic development.
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Affiliation(s)
- Nanxiang Wang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, People's Republic of China
| | - Lei He
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, People's Republic of China
| | - Yang Yang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, People's Republic of China
| | - Simin Li
- Department of Cariology, Endodontology and Periodontology, University Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Yuyong Chen
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, People's Republic of China
| | - Zhenming Tian
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, People's Republic of China
| | - Ye Ji
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin, Heilongjiang Province, People's Republic of China
| | - Yufu Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin, Heilongjiang Province, People's Republic of China
| | - Mao Pang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, People's Republic of China
| | - Yang Wang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, People's Republic of China
| | - Bin Liu
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, People's Republic of China.
| | - Limin Rong
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, People's Republic of China.
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Wang SN, Guo XY, Tang J, Ding SQ, Shen L, Wang R, Ma SF, Hu JG, Lü HZ. Expression and localization of absent in melanoma 2 in the injured spinal cord. Neural Regen Res 2019; 14:542-552. [PMID: 30539825 PMCID: PMC6334600 DOI: 10.4103/1673-5374.245481] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
In traumatic brain injury, absent in melanoma 2 (AIM2) has been demonstrated to be involved in pyroptotic neuronal cell death. Although the pathophysiological mechanism of spinal cord injury is similar to that of brain injury, the expression and cellular localization of AIM2 after spinal cord injury is still not very clear. In the present study, we used a rat model of T9 spinal cord contusive injury, produced using the weight drop method. The rats were randomly divided into 1-hour, 6-hour, 1-day, 3-day and 6-day (post-injury time points) groups. Sham-operated rats only received laminectomy at T9 without contusive injury. Western blot assay revealed that the expression levels of AIM2 were not significantly different among the 1-hour, 6-hour and 1-day groups. The expression levels of AIM2 were markedly higher in the 1-hour, 6-hour and 1-day groups compared with the sham, 3-day and 7-day groups. Double immunofluorescence staining demonstrated that AIM2 was expressed by NeuN+ (neurons), GFAP+ (astrocytes), CNPase+ (oligodendrocytes) and CD11b+ (microglia) cells in the sham-operated spinal cord. In rats with spinal cord injury, AIM2 was also found in CD45+ (leukocytes) and CD68+ (activated microglia/macrophages) cells in the spinal cord at all time points. These findings indicate that AIM2 is mainly expressed in neurons, astrocytes, microglia and oligodendrocytes in the normal spinal cord, and that after spinal cord injury, its expression increases because of the infiltration of leukocytes and the activation of astrocytes and microglia/macrophages.
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Affiliation(s)
- Sai-Nan Wang
- Clinical Laboratory, the First Affiliated Hospital of Bengbu Medical College; Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College; Department of Immunology, Bengbu Medical College, and Anhui Key Laboratory of Infection and Immunity at Bengbu Medical College, Bengbu, Anhui Province, China
| | - Xue-Yan Guo
- Clinical Laboratory; Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Jie Tang
- Department of Immunology, Bengbu Medical College, and Anhui Key Laboratory of Infection and Immunity at Bengbu Medical College, Bengbu, Anhui Province, China
| | - Shu-Qin Ding
- Clinical Laboratory, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Lin Shen
- Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Rui Wang
- Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Shan-Feng Ma
- Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - Jian-Guo Hu
- Clinical Laboratory; Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui Province, China
| | - He-Zuo Lü
- Clinical Laboratory, the First Affiliated Hospital of Bengbu Medical College; Anhui Key Laboratory of Tissue Transplantation, the First Affiliated Hospital of Bengbu Medical College; Department of Immunology, Bengbu Medical College, and Anhui Key Laboratory of Infection and Immunity at Bengbu Medical College, Bengbu, Anhui Province, China
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