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Jiang S, Li Z, Huang SJ, Zou W, Luo JG. IRF7 overexpression alleviates CFA-induced inflammatory pain by inhibiting nuclear factor-κB activation and pro-inflammatory cytokines expression in rats. Brain Behav Immun 2024; 120:10-20. [PMID: 38777286 DOI: 10.1016/j.bbi.2024.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 05/04/2024] [Accepted: 05/19/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND It is known that nerve signals arising from sites of inflammation lead to persistent changes in the spinal cord and contribute to the amplification and persistence of pain. Nevertheless, the underlying mechanisms have not yet been completely elucidated. We identified differentially expressed genes in the lumbar (L4-L6) segment of the spinal cord from complete Freund's adjuvant (CFA) rats compared to control animals via high throughput sequencing. Based on differential gene expression analysis, we selected interferon regulatory factor 7 (IRF7) for follow-up experiments to explore its antinociceptive potential. METHODS An animal model of inflammatory pain was induced by intraplantar injection of CFA. We evaluated the effects of adeno-associated viral (AAV)-mediated overexpression of IRF7 in the spinal cord on pain-related behavior after CFA injection. Moreover, the activation of the nuclear factor-κB (NF-κB) and the expression of inflammatory cytokines were investigated to understand the underlying mechanisms related to the contribution of IRF7 to inflammatory pain. RESULTS CFA intraplantar injection caused a significant decrease in the level of spinal IRF7, which is mainly expressed in the dorsal horn neurons and astrocytes. Moreover, IRF7 overexpression significantly attenuated pain-related behaviors, as well as the activity of NF-κB/p65 and the production of interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) in the spinal cord of CFA rats. CONCLUSIONS Our data indicated that spinal IRF7 plays an important role in the regulation of inflammatory pain. Thus, IRF7 overexpression at the spinal cord level might represent a potential target for the treatment of inflammatory pain.
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Affiliation(s)
- Shasha Jiang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Zhengyiqi Li
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Si-Jian Huang
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Wangyuan Zou
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, PR China.
| | - Jian-Gang Luo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, PR China.
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Ma W, Huang G, Wang Z, Wang L, Gao Q. IRF7: role and regulation in immunity and autoimmunity. Front Immunol 2023; 14:1236923. [PMID: 37638030 PMCID: PMC10449649 DOI: 10.3389/fimmu.2023.1236923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 07/25/2023] [Indexed: 08/29/2023] Open
Abstract
Interferon regulatory factor (IRF) 7 was originally identified as master transcriptional factor that produced IFN-I and regulated innate immune response, subsequent studies have revealed that IRF7 performs a multifaceted and versatile functions in multiple biological processes. In this review, we provide a comprehensive overview on the current knowledge of the role of IRF7 in immunity and autoimmunity. We focus on the latest regulatory mechanisms of IRF7 in IFN-I, including signaling pathways, transcription, translation, and post-translational levels, the dimerization and nuclear translocation, and the role of IRF7 in IFN-III and COVID-19. In addition to antiviral immunity, we also discuss the role and mechanism of IRF7 in autoimmunity, and the further research will expand our understanding of IRF7.
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Affiliation(s)
- Wei Ma
- Department of Cell Biology, College of Basic Medical Sciences, Army Medical University (Third Military Medical University), Chongqing, China
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Gang Huang
- Department of Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Zhi Wang
- Department of Cell Biology, College of Basic Medical Sciences, Army Medical University (Third Military Medical University), Chongqing, China
| | - Li Wang
- Department of Cell Biology, College of Basic Medical Sciences, Army Medical University (Third Military Medical University), Chongqing, China
| | - Qiangguo Gao
- Department of Cell Biology, College of Basic Medical Sciences, Army Medical University (Third Military Medical University), Chongqing, China
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Hui BSM, Zhi LR, Retinasamy T, Arulsamy A, Law CSW, Shaikh MF, Yeong KY. The Role of Interferon-α in Neurodegenerative Diseases: A Systematic Review. J Alzheimers Dis 2023; 94:S45-S66. [PMID: 36776068 PMCID: PMC10473139 DOI: 10.3233/jad-221081] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2022] [Indexed: 02/10/2023]
Abstract
BACKGROUND Neurodegenerative diseases (NDs) impose significant financial and healthcare burden on populations all over the world. The prevalence and incidence of NDs have been observed to increase dramatically with age. Hence, the number of reported cases is projected to increase in the future, as life spans continues to rise. Despite this, there is limited effective treatment against most NDs. Interferons (IFNs), a family of cytokines, have been suggested as a promising therapeutic target for NDs, particularly IFN-α, which governs various pathological pathways in different NDs. OBJECTIVE This systematic review aimed to critically appraise the currently available literature on the pathological role of IFN-α in neurodegeneration/NDs. METHODS Three databases, Scopus, PubMed, and Ovid Medline, were utilized for the literature search. RESULTS A total of 77 journal articles were selected for critical evaluation, based on the inclusion and exclusion criteria. The studies selected and elucidated in this current systematic review have showed that IFN-α may play a deleterious role in neurodegenerative diseases through its strong association with the inflammatory processes resulting in mainly neurocognitive impairments. IFN-α may be displaying its neurotoxic function via various mechanisms such as abnormal calcium mineralization, activation of STAT1-dependent mechanisms, and increased quinolinic acid production. CONCLUSION The exact role IFN-α in these neurodegenerative diseases have yet to be determine due to a lack in more recent evidence, thereby creating a variability in the role of IFN-α. Future investigations should thus be conducted, so that the role played by IFN-α in neurodegenerative diseases could be delineated.
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Affiliation(s)
- Brendan Su Mee Hui
- Clinical School Johor Bahru, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Johor Baru, Johor, Malaysia
| | - Lee Rui Zhi
- Clinical School Johor Bahru, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Johor Baru, Johor, Malaysia
| | - Thaarvena Retinasamy
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Alina Arulsamy
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | | | - Mohd. Farooq Shaikh
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
- School of Dentistry and Medical Sciences, Charles Sturt University, Orange, NSW, Australia
- Department of Neuroscience, Central Clinical School, Monash University, The Alfred Hospital, Melbourne, VIC, Australia
| | - Keng Yoon Yeong
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
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Acheampong DO, Barffour IK, Boye A, Aninagyei E, Ocansey S, Morna MT. Male predisposition to severe COVID-19: Review of evidence and potential therapeutic prospects. Biomed Pharmacother 2020; 131:110748. [PMID: 33152916 PMCID: PMC7480230 DOI: 10.1016/j.biopha.2020.110748] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 02/07/2023] Open
Abstract
The severe form of COVID-19 has significant sex disparities, with high fatalities commonly reported among males than females. The incidence of COVID-19 has also been higher in males compared with their female counterparts. This trend could be attributed to a better responsive and robust immune system in females. Cytokine storm is one of the pathophysiological features of severe COVID-19, and it occurs as a result of over-activation of immune cells leading to severe inflammation and tissue damage. Nevertheless, it is well modulated in females compared to their male counterparts. Severe inflammation in males is reported to facilitate progression of mild to severe COVID-19. The sex hormones, estrogens and androgens which exist in varying functional levels respectively in females and males are cited as the underlying cause for the differential immune response to COVID-19. Evidence abounds that estrogen modulate the immune system to protect females from severe inflammation and for that matter severe COVID-19. On the contrary, androgen has been implicated in over-activation of immune cells, cytokine storm and the attendant severe inflammation, which perhaps predispose males to severe COVID-19. In this review efforts are made to expand understanding and explain the possible roles of the immune system, the sex hormones and the angiotensin-converting enzyme (ACE) systems in male bias to severe COVID-19. Also, this review explores possible therapeutic avenues including androgen deprivation therapy (ADT), estrogen-based therapy, and ACE inhibitors for consideration in the fight against COVID-19.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Androgen Antagonists/pharmacology
- Androgen Antagonists/therapeutic use
- Angiotensin-Converting Enzyme 2
- Angiotensin-Converting Enzyme Inhibitors/pharmacology
- Angiotensin-Converting Enzyme Inhibitors/therapeutic use
- Animals
- Betacoronavirus/physiology
- COVID-19
- Child
- Child, Preschool
- Coronavirus Infections/complications
- Coronavirus Infections/drug therapy
- Coronavirus Infections/epidemiology
- Coronavirus Infections/immunology
- Coronavirus Infections/therapy
- Disease Susceptibility
- Female
- Gonadal Steroid Hormones/physiology
- Humans
- Immunity, Innate
- Infant
- Infant, Newborn
- Inflammation
- Male
- Mice
- Middle Aged
- Pandemics
- Peptidyl-Dipeptidase A/physiology
- Pneumonia, Viral/complications
- Pneumonia, Viral/epidemiology
- Pneumonia, Viral/immunology
- Pneumonia, Viral/therapy
- Prostatic Neoplasms/complications
- Prostatic Neoplasms/drug therapy
- Protein Disulfide-Isomerases/physiology
- Receptors, Cell Surface/physiology
- Receptors, Virus/physiology
- SARS-CoV-2
- Sex Distribution
- Smoking/adverse effects
- Young Adult
- COVID-19 Drug Treatment
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Affiliation(s)
- Desmond Omane Acheampong
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Ghana.
| | - Isaac Kyei Barffour
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Ghana
| | - Alex Boye
- Department of Medical Laboratory Science, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Ghana
| | - Enoch Aninagyei
- Department of Biomedical Sciences, School of Basic and Biomedical Sciences, University of Allied Health Sciences, Ho, Ghana
| | - Stephen Ocansey
- Department of Optometry and Vision Science, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Martin Tangnaa Morna
- Department of Surgery, School of Medical Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
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The roles played by TLR4 in the pathogenesis of multiple sclerosis; A systematic review article. Immunol Lett 2020; 220:63-70. [PMID: 32032617 DOI: 10.1016/j.imlet.2020.02.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 01/19/2020] [Accepted: 02/03/2020] [Indexed: 12/15/2022]
Abstract
Multiple sclerosis (MS) is a world-wide pro-inflammatory based disease, which is prevalent among young individuals. The etiology of the disease and its related complications are yet to be clarified. It has been hypothesized that environmental factors, including pathogen-associated molecular patterns (PAMPs) and the internal factors such as damage-associated molecular patterns (DAMPs), may be the most important inducers/stimulators of the disorder and its related complications. Previous investigations proved that pathogen recognition receptors (PRRs) are the main sensors for the PAMPs and DAMPs. Therefore, it seems that the PRRs have been considered to be the plausible molecules participating in the etiology of MS. Toll-like receptors (TLRs) have been the widely studied PRRs and their roles have been documented in human-related diseases. TLR4 is the main PRR expressed on the cell surface of several immune cells including macrophages and dendritic cells. Several investigations reported that TLR4 to be the main molecule involved in the pathogenesis of pro-inflammatory based diseases. Thus, it has been hypothesized that TLR4 may be a part of the MS puzzle. This review article discusses the role of TLR4 in the MS pathogenesis using recent in vitro and in vivo investigations.
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Bhargava P, Nogueras-Ortiz C, Chawla S, Bæk R, Jørgensen MM, Kapogiannis D. Altered Levels of Toll-Like Receptors in Circulating Extracellular Vesicles in Multiple Sclerosis. Cells 2019; 8:cells8091058. [PMID: 31509962 PMCID: PMC6769450 DOI: 10.3390/cells8091058] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 08/23/2019] [Accepted: 09/04/2019] [Indexed: 01/07/2023] Open
Abstract
Extracellular vesicles (EVs) are involved in inter-cellular communication and their cargo may provide prognostic/diagnostic biomarkers. To discover EV-associated biomarkers for Multiple Sclerosis (MS), we used an immune marker array to identify surface proteins on circulating EVs that differ between MS patients and controls (n = 3 each). We identified toll-like receptor-3 (TLR3) as a potential target for further validation. We utilized prospectively collected serum from relapsing-remitting MS patients (n = 18) and controls (n = 16) and confirmed lower concentration of TLR3 and higher concentration of mechanistically related TLR4 in MS EVs compared to controls. Future studies may further evaluate the utility of EV-associated TLRs as MS biomarkers and uncover their mechanistic significance.
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Affiliation(s)
- Pavan Bhargava
- Department of Neurology, Johns Hopkins University, Baltimore, MD 21287, USA
| | | | - Sahil Chawla
- Laboratory of Neurosciences, National Institutes of Aging, Baltimore, MD 21225 USA
| | - Rikke Bæk
- Department of Clinical Immunology, Aalborg University Hospital, 9000 Aalborg, Denmark
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Djedovic N, Jevtić B, Mansilla MJ, Petković F, Blaževski J, Timotijević G, Navarro-Barriuso J, Martinez-Caceres E, Mostarica Stojković M, Miljković Đ. Comparison of dendritic cells obtained from autoimmunty-prone and resistant rats. Immunobiology 2019; 224:470-476. [PMID: 30765133 DOI: 10.1016/j.imbio.2019.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/16/2019] [Indexed: 01/07/2023]
Abstract
Dendritic cells (DC) are responsible for the initiation and shaping of the adaptive immune response and are in the focus of autoimmunity research. We were interested in comparison of DC obtained from autoimmunity-prone Dark Agouti (DA) rats and autoimmunity-resistant Albino Oxford (AO) rats. DC were generated from bone marrow precursors and matured (mDC) by lipopolysaccharide. Tolerogenic DC (tolDC) obtained by vitamin D3 treatment were studied in parallel. Profile of cytokine production was different in AO and DA mDC and tolDC. Expression of MHC class II molecules and CD86 were higher in DA DC, while vitamin D3 reduced their expression in dendritic cells of both strains. Allogeneic proliferation of CD4+ T cells was reduced by AO tolDC, but not with DA tolDC in comparison to respective mDC. Finally, expression of various genes identified as differentially expressed in human mDC and tolDC was also analyzed in AO and DA DC. Again, AO and DA DC differed in the expression of the analyzed genes. To conclude, AO and DA DC differ in production of cytokines, expression of antigen presentation-related molecules and in regulation of CD4+ T proliferation. The difference is valuable for understanding the divergence of the strains in their susceptibility to autoimmunity.
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Affiliation(s)
- Neda Djedovic
- Department of Immunology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Serbia
| | - Bojan Jevtić
- Department of Immunology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Serbia
| | - M José Mansilla
- Immunology Division, Germans Trias i Pujol University Hospital and Research Institute, Badalona, Spain; Department of Cellular Biology, Physiology, and Immunology, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Filip Petković
- Department of Immunology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Serbia
| | - Jana Blaževski
- Department of Immunology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Serbia
| | - Gordana Timotijević
- Laboratory for Plant Molecular Biology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Serbia
| | - Juan Navarro-Barriuso
- Immunology Division, Germans Trias i Pujol University Hospital and Research Institute, Badalona, Spain; Department of Cellular Biology, Physiology, and Immunology, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Eva Martinez-Caceres
- Immunology Division, Germans Trias i Pujol University Hospital and Research Institute, Badalona, Spain
| | | | - Đorđe Miljković
- Department of Immunology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Serbia.
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