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Wu N, Zhao Y, Xiao M, Liu H, Chen H, Liu B, Wang X, Fan X. Methylprednisolone Modulates the Tfr/Tfh ratio in EAE-Induced Neuroinflammation through the PI3K/AKT/FoxO1 and PI3K/AKT/mTOR Signalling Pathways. Inflammation 2024:10.1007/s10753-024-02099-y. [PMID: 38980500 DOI: 10.1007/s10753-024-02099-y] [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: 03/27/2024] [Revised: 06/29/2024] [Accepted: 07/01/2024] [Indexed: 07/10/2024]
Abstract
Methylprednisolone (MP) is a potent glucocorticoid that can effectively inhibit immune system inflammation and brain tissue damage in Multiple sclerosis (MS) patients. T follicular helper (Tfh) cells are a subpopulation of activated CD4 + T cells, while T follicular regulatory (Tfr) cells, a novel subset of Treg cells, possess specialized abilities to suppress the Tfh-GC response and inhibit antibody production. Dysregulation of either Tfh or Tfr cells has been implicated in the pathogenesis of MS. However, the molecular mechanism underlying the anti-inflammatory effects of MP therapy on experimental autoimmune encephalomyelitis (EAE), a representative model for MS, remains unclear. This study aimed to investigate the effects of MP treatment on EAE and elucidate the possible underlying molecular mechanisms involed. We evaluated the effects of MP on disease progression, CNS inflammatory cell infiltration and myelination, microglia and astrocyte activation, as well as Tfr/Tfh ratio and related molecules/inflammatory factors in EAE mice. Additionally, Western blotting was used to assess the expression of proteins associated with the PI3K/AKT pathway. Our findings demonstrated that MP treatment ameliorated clinical symptoms, inflammatory cell infiltration, and myelination. Furthermore, it reduced microglial and astrocytic activation. MP may increase the number of Tfr cells and the levels of cytokine TGF-β1, while reducing the number of Tfh cells and the levels of cytokine IL-21, as well as regulate the imbalanced Tfr/Tfh ratio in EAE mice. The PI3K/AKT/FoxO1 and PI3K/AKT/mTOR pathways were found to be involved in EAE development. However, MP treatment inhibited their activation. MP reduced neuroinflammation in EAE by regulating the balance between Tfr/Tfh cells via inhibition of the PI3K/AKT/FoxO1 and PI3K/AKT/mTOR signalling pathways.
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Affiliation(s)
- Nan Wu
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - Yun Zhao
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - Minjun Xiao
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - Hui Liu
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - Hongliang Chen
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - Bin Liu
- Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, China
| | - Xuezhen Wang
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China.
| | - Xueli Fan
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China.
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Fan T, Wang W, Wang Y, Zeng M, Liu Y, Zhu S, Yang L. PDE4 inhibitors: potential protective effects in inflammation and vascular diseases. Front Pharmacol 2024; 15:1407871. [PMID: 38915460 PMCID: PMC11194378 DOI: 10.3389/fphar.2024.1407871] [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: 03/27/2024] [Accepted: 05/27/2024] [Indexed: 06/26/2024] Open
Abstract
Phosphodiesterase 4 (PDE4) inhibitors are effective therapeutic agents for various inflammatory diseases. Roflumilast, apremilast, and crisaborole have been developed and approved for the treatment of chronic obstructive pulmonary disease psoriatic arthritis, and atopic dermatitis. Inflammation underlies many vascular diseases, yet the role of PDE4 inhibitors in these diseases remains inadequately explored. This review elucidates the clinical applications and anti-inflammatory mechanisms of PDE4 inhibitors, as well as their potential protective effects on vascular diseases. Additionally, strategies to mitigate the adverse reactions of PDE4 inhibitors are discussed. This article emphasizes the need for further exploration of the therapeutic potential and clinical applications of PDE4 inhibitors in vascular diseases.
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Affiliation(s)
- Tianfei Fan
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Wenjing Wang
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yao Wang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Mingtang Zeng
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Liu
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Shuyao Zhu
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Lin Yang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
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Xie X, Gu H, Ma J, Fu L, Ma J, Zhang J, Wu R, Chen Z. FOXO1 Single-Nucleotide Polymorphisms Are Associated with Bleeding Severity and Sensitivity of Glucocorticoid Treatment of Pediatric Immune Thrombocytopenia. DNA Cell Biol 2024; 43:279-287. [PMID: 38683649 DOI: 10.1089/dna.2023.0431] [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] [Indexed: 05/01/2024] Open
Abstract
Immune thrombocytopenia (ITP) is an autoimmune-mediated hemorrhagic disease. Emerging evidence indicates that FOXO1 SNPs are related to the immune dysregulation of several autoimmune diseases suggesting that FOXO1 may be involved in inflammation and pathologic activities in patients with ITP. This study aimed to evaluate whether FOXO1 gene single-nucleotide polymorphisms (SNPs) are associated with susceptibility to ITP and clinical priorities of concern include bleeding severity and sensitivity of glucocorticoid treatment. This study recruited 327 newly diagnosed ITP and 220 healthy controls. Four SNPs (rs17446593, rs17446614, rs2721068, and rs2721068) of the FOXO1 gene were detected using the Sequenom MassArray system. Bleeding severity were classified into the mild and severe groups based on the bleeding scores. ITP patients were classified as sensitive and insensitive to glucocorticoid treatment according to the practice guideline for ITP (2019 version). The frequencies of the four SNPs did not show any significant differences between the ITP and healthy control groups. Patients with AA genotype at rs17446593 (p = 0.009) and GG genotype at rs17446614 (p = 0.009) suffered more severe bleeding than patients without them. Carriers of haplotype Grs17446593Ars17446614Crs2721068Trs2755213 were protective to severe bleeding (p = 0.002). The AA genotype at rs17446593 was significantly higher in ITP patients sensitive to glucocorticoid treatment than in those insensitive to glucocorticoid treatment (p = 0.03). Haplotype Grs17446593Grs17446614Trs2721068Trs2755213 increases the risk of glucocorticoid resistance (p = 0.007). Although FOXO1 gene polymorphisms were not associated with susceptibility to ITP, the AA genotype at rs17446593 and GG genotype at rs17446614 were associated with bleeding severity. Haplotype GACT have a protective effect against severe bleeding. Patients with AA genotype at rs17446593 may tend to have good responds to glucocorticoid treatment. However, the FOXO1 gene haplotype GGTT increases the risk of glucocorticoid-resistant. Trial registration: ChiCTR1900022419.
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Affiliation(s)
- Xingjuan Xie
- Hematologic Disease Laboratory, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University); Key Laboratory of Major Diseases in Children, Ministry of Education; Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hao Gu
- Hematologic Disease Laboratory, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University); Key Laboratory of Major Diseases in Children, Ministry of Education; Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Immunology, Ministry of Education Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jingyao Ma
- Department of Hematology, Beijing Key Laboratory of Pediatric Hematology Oncology; Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Lingling Fu
- Department of Hematology, Beijing Key Laboratory of Pediatric Hematology Oncology; Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jie Ma
- Department of Hematology, Beijing Key Laboratory of Pediatric Hematology Oncology; Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jialu Zhang
- Department of Hematology, Beijing Key Laboratory of Pediatric Hematology Oncology; Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Runhui Wu
- Department of Hematology, Beijing Key Laboratory of Pediatric Hematology Oncology; Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Zhenping Chen
- Hematologic Disease Laboratory, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University); Key Laboratory of Major Diseases in Children, Ministry of Education; Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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Garweg JG, Straessle KA. Janus Kinase Inhibitors as a Third-Line Therapy for Refractory Endogenous Noninfectious Uveitis. Ocul Immunol Inflamm 2024:1-8. [PMID: 38709218 DOI: 10.1080/09273948.2024.2348125] [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: 10/26/2023] [Accepted: 04/23/2024] [Indexed: 05/07/2024]
Abstract
PURPOSE Janus kinase (JAK) inhibitors have recently been used to treat patients with biologic refractory noninfectious uveitis (NIU). This narrative review updates the current evidence relevant for their application in patients with refractory NIU. METHODS A literature search was performed for articles published until October 2023 in the PubMed, Scopus, and CENTRAL databases using the key terms "noninfectious uveitis" and "Janus kinase inhibitor" or "JAK inhibitor" without any exclusion criteria. Published articles were selected based on their clinical focus, relevance for ocular disease, time since publication and study design reflecting their scientific soundness with a critical appraisal of drug safety aspects. RESULTS Janus kinases are transmembrane signaling proteins. Their inhibition has shown therapeutic potential experimentally and in patients with multiple immune-mediated diseases, including NIU. JAK inhibitors differ from biological agents in that they inhibit not one specific but multiple cytokines. These agents can be ingested orally and seem superior to adalimumab for most indications. While there is no doubt regarding their efficacy in treating immune-mediated inflammatory diseases, reports regarding their safety are increasing, and the findings are generally confusing and contradictory. Since substantiated information about their specific safety profiles in patients with inflammatory eye disease is lacking, their position in the therapeutic algorithm for uveitis has yet to be determined. CONCLUSIONS In the absence of evidence from controlled clinical trials, JAK inhibitor therapy is still rendered experimental and currently considered only for sight-threatening uveitis. JAK inhibitors may be considered for specific NIU entities for which there is insufficient response or secondary loss of response to conventional or biologic disease-modifying drugs.
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Affiliation(s)
- Justus G Garweg
- Swiss Eye Institute and Clinic for Vitreoretinal Diseases, Berner Augenklinik, Bern, Switzerland
- Department of Ophthalmology, Inselspital, Medical Faculty, University of Bern, Bern, Switzerland
| | - Kim A Straessle
- Swiss Eye Institute and Clinic for Vitreoretinal Diseases, Berner Augenklinik, Bern, Switzerland
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Huang LK, Zeng XS, Jiang ZW, Peng H, Sun F. Echinacoside alleviates glucocorticoid induce osteonecrosis of femoral head in rats through PI3K/AKT/FOXO1 pathway. Chem Biol Interact 2024; 391:110893. [PMID: 38336255 DOI: 10.1016/j.cbi.2024.110893] [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: 11/24/2023] [Revised: 01/03/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024]
Abstract
Steroid-induced osteonecrosis of the femoral head (SONFH), caused by glucocorticoid (GC) administration, is known to exhibit a high incidence worldwide. Although osteoblast apoptosis has been reported as an important cytological basis of SONFH, the precise mechanism remains elusive. Echinacoside (Ech), a natural phenylethanoid glycoside, exerts multiple beneficial effects, such as facilitation of cell proliferation and anti-inflammatory and anticancer activities. Herein, we aimed to explore the regulatory mechanism underlying glucocorticoid-induced osteoblast apoptosis and determine the protective efficacy of Ech against SONFH. We comprehensively surveyed multiple public databases to identify SONFH-related genes. Using bioinformatics analysis, we identified that the PI3K/AKT/FOXO1 signaling pathway was most strongly associated with SONFH. We examined the protective effect of Ech against SONFH using in vivo and in vitro experiments. Specifically, dexamethasone (Dex) decreased p-PI3K and p-AKT levels, which were reversed following Ech addition. Validation of the PI3K inhibitor (LY294002) and molecular docking of Ech and PI3K/AKT further indicated that Ech could directly enhance PI3K/AKT activity to alleviate Dex-induced inhibition. Interestingly, Dex upregulated the expression of FOXO1, Bax, cleaved-caspase-9, and cleaved-caspase-3 and enhanced MC3T3-E1 apoptosis; application of Ech and siRNA-FOXO1 reversed these effects. In vitro, Ech decreased the number of empty osteocytic lacunae, reduced TUNEL and FOXO1 positive cells, and improved bone microarchitecture. Our results provide robust evidence that PI3K/AKT/FOXO1 plays a crucial role in the development of SONFH. Moreover, Ech may be a promising candidate drug for the treatment of SONFH.
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Affiliation(s)
- Liang Kun Huang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xiao Shuang Zeng
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ze Wen Jiang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Hao Peng
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Fei Sun
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Foeldvari I, Petrushkin H. How should we approach management of childhood onset chronic anterior uveitis refractory to adalimumab? Expert Rev Clin Immunol 2024; 20:267-276. [PMID: 37990508 DOI: 10.1080/1744666x.2023.2284845] [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: 06/26/2023] [Accepted: 11/14/2023] [Indexed: 11/23/2023]
Abstract
INTRODUCTION The management of refractory juvenile idiopathic associated uveitis (JIAU) or childhood-onset chronic anterior uveitis (CAU) is a challenge. There is no clear consensus or evidence base for to suggest the most appropriate therapy after primary or secondary failure of biweekly adalimumab. In this scenario, most clinicians advocate switching to another anti-tumor necrosis factor alpha inhibitor; however, there are a variety of other disease modifying agents to choose from albeit with a differing levels of evidence. AREAS COVERED We discuss how to define nonresponse and potential treatment options for patients with JIAU and CAU refractory to biweekly adalimumab. EXPERT OPINION Uncontrolled CAU and JIAU remain one of the most challenging diseases to manage and can lead to irreversible loss of vision in a third of those affected. Amongst the possible choices, weekly adalimumab, infliximab, tocilizumab and abatacept have more evidence to support their use. JAK inhibitors seem to be a promising option. Golimumab and Rituximab has also been thought to be partially effective in some refractory cases, whereas IL-17, IL-23, and IL-12 inhibition along with apremilast seem not to be a therapeutic option currently. The route of administration should also be considered as there can be significant pros and cons for different children.
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Affiliation(s)
- Ivan Foeldvari
- Hamburger Zentrum für Kinder- und Jugendrheumatologie, Centre for Treatment of Scleroderma and Uveitis in Childhood and Adolescence An der Schön Klinik Hamburg Eilbek, Hamburg, Germany
- Teaching Unit of the Asklepios Campus of the Semmelweis Medical School, Budapest, Hungary
| | - Harry Petrushkin
- Moorfields Eye Hospital, NHS Foundation Trust, London, UK
- Great Ormond Street Hospital For Children, NHS Foundation Trust, London, UK
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Peng X, Li H, Zhu L, Zhao S, Li Z, Li S, DongtingWu, Chen J, Zheng S, Su W. Single-cell sequencing of the retina shows that LDHA regulates pathogenesis of autoimmune uveitis. J Autoimmun 2024; 143:103160. [PMID: 38160538 DOI: 10.1016/j.jaut.2023.103160] [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: 10/31/2023] [Revised: 11/29/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
Autoimmune uveitis (AU) is a severe disorder causing poor vision and blindness. However, the cellular dynamics and pathogenic mechanisms underlying retinal injury in uveitis remain unclear. In this study, single-cell RNA sequencing of the retina and cervical draining lymph nodes in experimental autoimmune uveitis mice was conducted to identify the cellular spatiotemporal dynamics and upregulation of the glycolysis-related gene LDHA. Suppression of LDHA can rescue the imbalance of T effector (Teff) cells/T regulator (Treg) cells under inflammation via downregulation of the glycolysis-PI3K signaling circuit and inhibition of the migration of CXCR4+ Teff cells towards retinal tissue. Furthermore, LDHA and CXCR4 are upregulated in the peripheral blood mononuclear cells of Vogt-Koyanagi-Harada patients. The LDHA inhibitor suppresses CD4+ T cell proliferation in humans. Therefore, our data indicate that the autoimmune environment of uveitis regulates Teff cell accumulation in the retina via glycolysis-associated LDHA. Modulation of this target may provide a novel therapeutic strategy for treating AU.
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Affiliation(s)
- Xuening Peng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - He Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Lei Zhu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Sichen Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Zhaohuai Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Si Li
- Sun Yat-sen University, Guangzhou 510060, China
| | - DongtingWu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | | | - Songguo Zheng
- Department of Immunology, School of Cell and Gene Therapy, Shanghai Jiaotong University School of Medicine, 201600, Shanghai, China.
| | - Wenru Su
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China.
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Dahabreh D, Jung S, Renert-Yuval Y, Bar J, Del Duca E, Guttman-Yassky E. Alopecia Areata: Current Treatments and New Directions. Am J Clin Dermatol 2023; 24:895-912. [PMID: 37606849 DOI: 10.1007/s40257-023-00808-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2023] [Indexed: 08/23/2023]
Abstract
Alopecia areata is an autoimmune hair loss disease that is non-scarring and is characterized by chronic inflammation at the hair follicle level. Clinically, patients' presentation varies from patchy, circumscribed scalp involvement to total body and scalp hair loss. Current management is guided by the degree of scalp and body involvement, with topical and intralesional steroid injections as primarily first-line for mild cases and broad immunosuppressants as the mainstay for more severe cases. Until recently, the limited number of blinded, randomized, placebo-controlled clinical trials for this disease had made establishing an evidence-based treatment paradigm challenging. However, growing insights into the pathogenesis of alopecia areata through blood and tissue analysis of human lesions have identified several promising targets for therapy. T-helper (Th) 1/interferon skewing has traditionally been described as the driver of disease; however, recent investigations suggest activation of additional immune mediators, including the Th2 pathway, interleukin (IL)-9, IL-23, and IL-32, as contributors to alopecia areata pathogenesis. The landscape of alopecia areata treatment has the potential to be transformed, as several novel targeted drugs are currently undergoing clinical trials. Given the recent US FDA approval of baricitinib and ritlecitinib, Janus kinase (JAK) inhibitors are a promising drug class for treating severe alopecia areata cases. This article will review the efficacy, safety, and tolerability of current treatments for alopecia areata, and will provide an overview of the emerging therapies that are leading the revolution in the management of this challenging disease.
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Affiliation(s)
- Dante Dahabreh
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA
| | - Seungyeon Jung
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA
- School of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Yael Renert-Yuval
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA
| | - Jonathan Bar
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA
| | - Ester Del Duca
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA
| | - Emma Guttman-Yassky
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA.
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Liu S, Lei X, Cao H, Xu Z, Wu S, Chen H, Xu L, Zhan Z, Xu Q, Wei J, Qin Q. Antiviral role of grouper FoxO1 against RGNNV and SGIV infection. FISH & SHELLFISH IMMUNOLOGY 2023; 142:109168. [PMID: 37844852 DOI: 10.1016/j.fsi.2023.109168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/11/2023] [Accepted: 10/14/2023] [Indexed: 10/18/2023]
Abstract
As a key regulator of the innate immune system, FoxO1 has a variety of activities in biological organisms. In the present study, grouper FoxO1 (EcFoxO1) was cloned and the antiviral activity in red grouper neuron necrosis virus (RGNNV) and Singapore grouper iridescent virus (SGIV) was examined. The open reading frame (ORF) of EcFoxO1 contains 2,034 base pairs that encode a protein of 677 amino acids with a predicted molecular weight of 73.21 kDa. EcFoxO1 was shown to be broadly distributed in healthy grouper tissues, and was up-regulated in vitro in response to stimulation by RGNNV and SGIV. EcFoxO1 has a whole-cell distribution in grouper spleen (GS) cells. EcFoxO1 decreased the replication of RGNNV and SGIV, and activated interferon (IFN) 3, IFN-stimulated response element (ISRE), and nuclear factor-κB (NF-κB) promoter activities. EcFoxO1 could interact with EcIRF3. Together, the results demonstrated that EcFoxO1 might be an important regulator of grouper innate immune response against RGNNV and SGIV infection.
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Affiliation(s)
- Shaoli Liu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Xiaoxia Lei
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Helong Cao
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Zhuqing Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Siting Wu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Hong Chen
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Linting Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Zhouling Zhan
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Qiongyue Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Jingguang Wei
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China.
| | - Qiwei Qin
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China.
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10
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Queiro R, Loredo M, Braña I, Pardo E, Alonso S, Alperi M. Managing psoriatic arthritis in different clinical scenarios. Expert Rev Clin Immunol 2023; 19:1469-1484. [PMID: 37589128 DOI: 10.1080/1744666x.2023.2249235] [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: 04/27/2023] [Accepted: 08/14/2023] [Indexed: 08/18/2023]
Abstract
INTRODUCTION Psoriatic arthritis (PsA) is a chronic, immune-mediated disease characterized by synovio-entheseal inflammation. It is estimated to affect around 30% of patients with psoriasis and significantly reduces patients' physical function and quality of life. There is a growing number of treatment options for PsA, but due to the heterogeneous clinical features of the disease and prevalence of comorbidities, managing PsA can be challenging. AREAS COVERED In this article, we review current understanding of the disease and available pharmacological options. Based on published treatment guidelines, emerging evidence and clinical experience, we provide our expert opinion on treatment strategies, taking into consideration the predominant disease domain and the presence of comorbidities, which can impact treatment decisions and clinical outcomes. EXPERT OPINION Biological and targeted synthetic disease-modifying agents are dramatically improving the lives of patients with PsA. Biosimilar TNF inhibitors offer a particularly versatile and cost-effective option, whilst newer biologics and targeted synthetic molecules that can be used to treat most domains of psoriatic disease are an attractive alternative to TNF inhibitors. Despite a lack of consensus on treatment sequencing and tapering, it is important that PsA patients, especially those with comorbidities, are looked after by a multidisciplinary team to optimize their care.
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Affiliation(s)
- Rubén Queiro
- Rheumatology & ISPA Translational Immunology Division, Central University Hospital of Asturias, Oviedo, Spain
- Department of Medicine, Oviedo University School of Medicine, Oviedo, Spain
| | - Marta Loredo
- Rheumatology Division, Central University Hospital of Asturias, Oviedo, Spain
| | - Ignacio Braña
- Rheumatology Division, Central University Hospital of Asturias, Oviedo, Spain
| | - Estefanía Pardo
- Rheumatology Division, Central University Hospital of Asturias, Oviedo, Spain
| | - Sara Alonso
- Rheumatology Division, Central University Hospital of Asturias, Oviedo, Spain
| | - Mercedes Alperi
- Rheumatology Division, Central University Hospital of Asturias, Oviedo, Spain
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Ren H, Chen Y, Zhu Z, Xia J, Liu S, Hu Y, Qin X, Zhang L, Ding Y, Xia S, Wang J. FOXO1 regulates Th17 cell-mediated hepatocellular carcinoma recurrence after hepatic ischemia-reperfusion injury. Cell Death Dis 2023; 14:367. [PMID: 37330523 PMCID: PMC10276824 DOI: 10.1038/s41419-023-05879-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/07/2023] [Accepted: 05/31/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Hepatic ischemia-reperfusion injury (IRI) is considered as an effecting factor for hepatocellular carcinoma (HCC) recurrence. Th17/Treg cells are a pair of essential components in adaptive immune response in liver IRI, and forkhead box O1 (FOXO1) has the properties of maintaining the function and phenotype of immune cells. Herein, we illuminated the correlation and function between Th17/Treg cell balance and FOXO1 in IRI-induced HCC recurrence. METHODS RNA sequencing was performed on naive CD4+ T cells from normal and IRI model mice to identify relevant transcription factors. Western blotting, qRT-PCR, immunohistochemical staining, and flow cytometry were performed in IRI models to indicate the effect of FOXO1 on the polarization of Th17/Treg cells. Then, transwell assay of HCC cell migration and invasion, clone formation, wound healing assay, and Th17 cells adoptively transfer was utilized to assess the function of Th17 cells in IRI-induced HCC recurrence in vitro and in vivo. RESULTS Owning to the application of RNA sequencing, FOXO1 was screened and assumed to perform a significant function in hepatic IRI. The IRI model demonstrated that up-regulation of FOXO1 alleviated IR stress by attenuating inflammatory stress, maintaining microenvironment homeostasis, and reducing the polarization of Th17 cells. Mechanistically, Th17 cells accelerated IRI-induced HCC recurrence by shaping the hepatic pre-metastasis microenvironment, activating the EMT program, promoting cancer stemness and angiogenesis, while the upregulation of FOXO1 can stabilize the liver microenvironment homeostasis and alleviate the negative effects of Th17 cells. Moreover, the adoptive transfer of Th17 cells in vivo revealed its inducing function in IRI-induced HCC recurrence. CONCLUSIONS These results indicated that FOXO1-Th17/Treg axis exerts a crucial role in IRI-mediated immunologic derangement and HCC recurrence, which could be a promising target for reducing the HCC recurrence after hepatectomy. Liver IRI affects the balance of Th17/Treg cells by inhibiting the expression of FOXO1, and the increase of Th17 cells has the ability to induce HCC recurrence through EMT program, cancer stemness pathway, the formation of premetastatic microenvironment and angiogenesis.
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Grants
- the National Natural Science Foundation of China (82270646),the Fundamental Research Funds for the Central Universities (0214-14380510), the Nanjing health science and technology development project for Distinguished Young Scholars,the Nanjing health science and technology development project for Distinguished Young Scholars (JQX19002),Project of Modern Hospital Management and Development Institute, Nanjing University and Aid project of Nanjing Drum Tower Hospital Health, Education & Research Foundation(NDYG2022057),fundings for Clinical Trials from the Affiliated Drum Tower Hospital, Medical School of Nanjing University(2022-LCYJ-PY-35),the Chen Xiao-ping Foundation for the Development of Science and Technology of Hubei Province, China (CXPJJH121001-2021073)
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Affiliation(s)
- Haozhen Ren
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, Jiangsu Province, China
| | - Yuyan Chen
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Zhengyi Zhu
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Jinkun Xia
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Shujun Liu
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Yingzhe Hu
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Xueqian Qin
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Lu Zhang
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Yitao Ding
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, Jiangsu Province, China
| | - Senzhe Xia
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China.
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, Jiangsu Province, China.
| | - Jinglin Wang
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China.
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, Jiangsu Province, China.
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Liu C, Wang Q, Niu L. Sufentanil inhibits Pin1 to attenuate renal tubular epithelial cell ischemia-reperfusion injury by activating the PI3K/AKT/FOXO1 pathway. Int Urol Nephrol 2023:10.1007/s11255-023-03651-9. [PMID: 37300758 DOI: 10.1007/s11255-023-03651-9] [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: 03/30/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND Renal ischemia-reperfusion injury (RIRI) has become a great concern in clinical practice with high morbidity and mortality rates. Sufentanil has protective effects on IRI-induced organ injury. Herein, the effects of sufentanil on RIRI were investigated. METHODS RIRI cell model was established by hypoxia/reperfusion (H/R) stimulation. The mRNA and protein expressions were assessed using qRT-PCR and western blot. TMCK-1 cell viability and apoptosis were assessed using MTT assay and flow cytometry, respectively. The mitochondrial membrane potential and ROS level were detected by JC-1 mitochondrial membrane potential fluorescent probe and DCFH-DA fluorescent probe, respectively. LDH, SOD, CAT, GSH and MDA levels were determined by the kits. The interaction between FOXO1 and Pin1 promoter was analyzed using dual luciferase reporter gene and ChIP assays. RESULTS Our results revealed that sufentanil treatment attenuated H/R-induced cell apoptosis, mitochondrial membrane potential (MMP) dysfunction, oxidative stress, inflammation and activated PI3K/AKT/FOXO1 associated proteins, while these effects were reversed by PI3K inhibitor, suggesting that sufentanil attenuated RIRI via activating the PI3K/AKT/FOXO1 signaling pathway. We subsequently found that FOXO1 transcriptionally activated Pin1 in TCMK-1 cells. Pin1 inhibition ameliorated H/R-induced TCMK-1 cell apoptosis, oxidative stress and inflammation. In addition, as expected, the biological effects of sufentanil on H/R-treated TMCK-1 cells were abrogated by Pin1 overexpression. CONCLUSION Sufentanil reduced Pin1 expression through activation of the PI3K/AKT/FOXO1 signaling to suppress cell apoptosis, oxidative stress and inflammation in renal tubular epithelial cells during RIRI development.
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Affiliation(s)
- Chunhui Liu
- Jiamusi University, Harbin, 154000, Heilongjiang, China
| | - Qingdong Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, Harbin, 154002, Heilongjiang, China
| | - Li Niu
- Department of Anesthesiology, Heilongjiang Sengong General Hospital, No.32 Hexing Road, Xiangfang District, Harbin, 150040, Heilongjiang, China.
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Peng Y, Zhou M, Yang H, Qu R, Qiu Y, Hao J, Bi H, Guo D. Regulatory Mechanism of M1/M2 Macrophage Polarization in the Development of Autoimmune Diseases. Mediators Inflamm 2023; 2023:8821610. [PMID: 37332618 PMCID: PMC10270764 DOI: 10.1155/2023/8821610] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/21/2023] [Accepted: 05/23/2023] [Indexed: 06/20/2023] Open
Abstract
Macrophages are innate immune cells in the organism and can be found in almost tissues and organs. They are highly plastic and heterogeneous cells and can participate in the immune response, thereby playing a crucial role in maintaining the immune homeostasis of the body. It is well known that undifferentiated macrophages can polarize into classically activated macrophages (M1 macrophages) and alternatively activated macrophages (M2 macrophages) under different microenvironmental conditions. The directions of macrophage polarization can be regulated by a series of factors, including interferon, lipopolysaccharide, interleukin, and noncoding RNAs. To elucidate the role of macrophages in various autoimmune diseases, we searched the literature on macrophages with the PubMed database. Search terms are as follows: macrophages, polarization, signaling pathways, noncoding RNA, inflammation, autoimmune diseases, systemic lupus erythematosus, rheumatoid arthritis, lupus nephritis, Sjogren's syndrome, Guillain-Barré syndrome, and multiple sclerosis. In the present study, we summarize the role of macrophage polarization in common autoimmune diseases. In addition, we also summarize the features and recent advances with a particular focus on the immunotherapeutic potential of macrophage polarization in autoimmune diseases and the potentially effective therapeutic targets.
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Affiliation(s)
- Yuan Peng
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - Mengxian Zhou
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - Hong Yang
- Qingdao Traditional Chinese Medicine Hospital (Qingdao Hiser Hospital), Qingdao 266033, China
| | - Ruyi Qu
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - Yan Qiu
- The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - Jiawen Hao
- Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - Hongsheng Bi
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases; Shandong Academy of Eye Disease Prevention and Therapy, Medical College of Optometry and Ophthalmology, Shandong University of Traditional Chinese Medicine, Jinan 250002, China
| | - Dadong Guo
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases; Shandong Academy of Eye Disease Prevention and Therapy, Medical College of Optometry and Ophthalmology, Shandong University of Traditional Chinese Medicine, Jinan 250002, China
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Singhal P, Veturi Y, Dudek SM, Lucas A, Frase A, van Steen K, Schrodi SJ, Fasel D, Weng C, Pendergrass R, Schaid DJ, Kullo IJ, Dikilitas O, Sleiman PMA, Hakonarson H, Moore JH, Williams SM, Ritchie MD, Verma SS. Evidence of epistasis in regions of long-range linkage disequilibrium across five complex diseases in the UK Biobank and eMERGE datasets. Am J Hum Genet 2023; 110:575-591. [PMID: 37028392 PMCID: PMC10119154 DOI: 10.1016/j.ajhg.2023.03.007] [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: 12/12/2022] [Accepted: 03/07/2023] [Indexed: 04/09/2023] Open
Abstract
Leveraging linkage disequilibrium (LD) patterns as representative of population substructure enables the discovery of additive association signals in genome-wide association studies (GWASs). Standard GWASs are well-powered to interrogate additive models; however, new approaches are required for invesigating other modes of inheritance such as dominance and epistasis. Epistasis, or non-additive interaction between genes, exists across the genome but often goes undetected because of a lack of statistical power. Furthermore, the adoption of LD pruning as customary in standard GWASs excludes detection of sites that are in LD but might underlie the genetic architecture of complex traits. We hypothesize that uncovering long-range interactions between loci with strong LD due to epistatic selection can elucidate genetic mechanisms underlying common diseases. To investigate this hypothesis, we tested for associations between 23 common diseases and 5,625,845 epistatic SNP-SNP pairs (determined by Ohta's D statistics) in long-range LD (>0.25 cM). Across five disease phenotypes, we identified one significant and four near-significant associations that replicated in two large genotype-phenotype datasets (UK Biobank and eMERGE). The genes that were most likely involved in the replicated associations were (1) members of highly conserved gene families with complex roles in multiple pathways, (2) essential genes, and/or (3) genes that were associated in the literature with complex traits that display variable expressivity. These results support the highly pleiotropic and conserved nature of variants in long-range LD under epistatic selection. Our work supports the hypothesis that epistatic interactions regulate diverse clinical mechanisms and might especially be driving factors in conditions with a wide range of phenotypic outcomes.
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Affiliation(s)
- Pankhuri Singhal
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yogasudha Veturi
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Scott M Dudek
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Anastasia Lucas
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alex Frase
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kristel van Steen
- Department of Human Genetics, Katholieke Universiteit Leuven, ON4 Herestraat 49, 3000 Leuven, Belgium
| | - Steven J Schrodi
- Laboratory of Genetics, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53706, USA
| | - David Fasel
- Columbia University, New York, NY 10027, USA
| | | | | | | | | | | | | | - Hakon Hakonarson
- Children's Hospital of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jason H Moore
- Department of Computational Biomedicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Scott M Williams
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Marylyn D Ritchie
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Shefali S Verma
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Bian W, Li Y, Sun F, Sun X, Li R, Xia C, Fu J, Zhang Y, Chen S, Liu Y. Immune phenotype changes in IgG4-related disease: CD161 + Treg and Foxp3 + Treg. Clin Rheumatol 2023; 42:1113-1124. [PMID: 36567407 DOI: 10.1007/s10067-022-06445-z] [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: 07/24/2022] [Revised: 10/28/2022] [Accepted: 11/08/2022] [Indexed: 12/27/2022]
Abstract
OBJECTIVE We aimed to characterize the alterations in the immune phenotypes and explore the potential relevance to pathogenesis in IgG4-RD. METHODS Forty-two IgG4-RD patients and thirty-eight healthy controls were recruited in this study. Peripheral immunocompetent cells including T cells, CD4 + T cells, CD8 + T cells, B cells, NK cells CD4 + CD45RA + T cells (naïve T cells), CD4 + CD25 - / + Foxp3 - T cells (Teff), CD4 + CD25hiCD127lowCD161 + T cells (CD161 + Treg), CD4 + CD25hiFoxp3 + T cells (Foxp3 + Treg), CD4 + CD4RA-CXCR5 + PD1 + CCR7low T cells (pTfh), T helper (Th) 1, Th2, and Th17 before and after treatment were immunophenotyped by flow cytometry. RESULTS Compared with healthy controls, IgG4-RD patients showed higher proportions of NK (20.1% vs 13.6%, p < 0.01), Th1 (CD4 + IFN-γ + : 17.9% vs 14.2%, p = 0.061; TNF-α: 43.7% vs 36.7%, p < 0.05), Th2 (CD4 + IL-4 + : 2.4% vs 1.3%, p < 0.0001), CD161 + Treg (14.9% vs 11.6%, p < 0.01), pTfh (3.2% vs 2.4%, p < 0.05), and Foxp3 + Treg (8.3% vs 7.0%, p < 0.01) and lower proportions of B lymphocytes (8.4% vs 13.1%, p < 0.001), Teff (91.6% vs 92.6%, p < 0.01), and naïve Th cells (19.9% vs 32.1%, p < 0.01) before treatment. Foxp3 + Treg percentage decreased significantly after treatment (8.6% vs 6.9%, p < 0.05). Both serum C3 (r = - 0.6374, p < 0.01) and C4 (r = - 0.6174, p < 0.01) levels were in negative correlation with CD161 + Treg. The eosinophil percentage was positively correlated with Foxp3 + Treg (r = 0.5435, p < 0.05). Serum IgE level was positively correlated with Th2 (r = 0.5545, p < 0.05). There was a positive correlation between CD161 + Treg and pTfh (r = 0.4974, p < 0.05) while a negative correlation between Th2 and B cells (r = - 0.4925, p < 0.05). CONCLUSION Immune phenotypes were altered in IgG4-RD. Treg/Teff balance was shifted toward Treg in IgG4-RD. CD161 + Treg was likely to be involved in the pathogenesis of IgG4-RD. Key Points •Immune phenotypes were altered in B cells, T cells, and NK cells in IgG4-RD. •Treg/Teff balance was shifted toward Treg in IgG4-RD. •CD161+ Treg maybe play a proinflammatory role in IgG4-RD.
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Affiliation(s)
- Wenjie Bian
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11, Xizhimen South Street, Beijing, 100044, China
| | - Yingni Li
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11, Xizhimen South Street, Beijing, 100044, China
| | - Feng Sun
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11, Xizhimen South Street, Beijing, 100044, China
| | - Xiaolin Sun
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11, Xizhimen South Street, Beijing, 100044, China
| | - Ru Li
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11, Xizhimen South Street, Beijing, 100044, China
| | - Changsheng Xia
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Jiangnan Fu
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11, Xizhimen South Street, Beijing, 100044, China
| | - Yuxin Zhang
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11, Xizhimen South Street, Beijing, 100044, China
| | - Shuang Chen
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11, Xizhimen South Street, Beijing, 100044, China
| | - Yanying Liu
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11, Xizhimen South Street, Beijing, 100044, China.
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95, Yongan Road, Beijing, 100050, China.
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Zhang M, Zhang X. T cells in ocular autoimmune uveitis: Pathways and therapeutic approaches. Int Immunopharmacol 2023; 114:109565. [PMID: 36535124 DOI: 10.1016/j.intimp.2022.109565] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/29/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022]
Abstract
Autoimmune uveitis is a non-infectious intraocular condition that affects the uveal tract of the eye and threatens vision if not treated properly. Increasing evidence suggests that activated CD4+ T cells are associated with progressive and permanent destruction of photoreceptors in ocular autoimmune diseases. As such, the purpose of this review is to offer an overview of the role of CD4+ T cells in autoimmune uveitis as well as a justification for the current development and assessment of innovative autoimmune uveitis medications targeting CD4+ T cells. With an emphasis on T helper (Th)17, Th1, and Th2 cells, follicular helper CD4+ T cells, and regulatory T cells, this review presents a summary of recent research related to the pathways and signaling that encourage CD4+ T cells to develop into specialized effector cells. We also describe immunotherapeutic approaches based on CD4+ T cell subsets and their potential as therapeutic agents for autoimmune disorders.
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Affiliation(s)
- Mi Zhang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xiaomin Zhang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China.
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Yang M, Yang Z, Huang J, Yu W, He X, Yuan M, Han W, Chen W. Optimization of determinant factors associated with the efficiency of experimental autoimmune uveitis induction in C57BL/6 mice. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:1274. [PMID: 36618787 PMCID: PMC9816839 DOI: 10.21037/atm-22-2293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 09/19/2022] [Indexed: 12/23/2022]
Abstract
Background Experimental autoimmune uveitis (EAU) is a widely used animal model for uveitis research. The C57BL/6 mouse strain is the most commonly used mouse strain in the research of genetic modification, but C57BL/6 mice are not sufficiently susceptible to EAU induction, partly due to experimental factors. This work aims to optimize relevant factors to improve the efficiency of EAU induction in C57BL/6 mice. Methods To induce EAU, mice were immunized via intraperitoneal injection with pertussis (PTX) and subcutaneous injection with interphotoreceptor retinoid-binding protein peptide 1-20 (IRBP1-20) emulsified with complete Freund's adjuvant (CFA). The severity of inflammation was assessed using several approaches. The relevant experimental factors were evaluated, including methods of emulsification and doses of peptide and PTX. Results Uveitis occurred at 8-12 days after immunization and reached its peak at 18-20 days, while T helper type 17 (Th17) cells peaked earlier at 14-18 days after immunization. Based on clinical and histological scores, 500 µg of IRBP peptide was the optimal dose required to induce EAU. The PTX dose demonstrated no influence on EAU incidence, but potentially affected the severity of uveitis. A single injection of 1,000 ng of PTX induced the most severe EAU and the highest proportion of Th17 cells. Compared to extruded emulsion, sonicated emulsion produced a higher incidence, higher histological score, and a 2-day-earlier onset of EAU. Electron microscopy showed a significantly different microstructure between the 2 emulsions. Conclusions This work optimized the protocols of EAU induction and obtained a high and stable induction rate with severe inflammation in the C57BL/6 mouse strain. Our results facilitate future experimental research involving uveitis.
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Affiliation(s)
- Ming Yang
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zixuan Yang
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jiani Huang
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wangshu Yu
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoying He
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Minjie Yuan
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wei Han
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wei Chen
- Institute of Immunology, School of Medicine, Zhejiang University, Hangzhou, China
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Attenuation of the Severity of Acute Respiratory Distress Syndrome by Pomiferin through Blocking Inflammation and Oxidative Stress in an AKT/Foxo1 Pathway-Dependent Manner. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5236908. [PMID: 36471865 PMCID: PMC9719418 DOI: 10.1155/2022/5236908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/25/2022] [Accepted: 10/13/2022] [Indexed: 11/28/2022]
Abstract
Acute respiratory distress syndrome (ARDS) gives rise to uncontrolled inflammatory response and oxidative stress, causing very high mortality globally. Pomiferin is a kind of prenylated isoflavonoid extracted from Maclura pomifera, owning anti-inflammatory and antioxidant properties. However, the functions and possible mechanisms of pomiferin in lipopolysaccharide- (LPS-) induced ARDS remain unknown. C57BL/6 mice were injected with LPS (5 mg/kg) intratracheally to induce an in vivo ARDS model while RAW264.7 macrophages were stimulated with LPS (100 ng/ml) to induce an in vitro model. Our data demonstrated that pomiferin (20 mg/kg) significantly improved pulmonary function and lung pathological injury in mice with ARDS, apart from increasing survival rate. Meanwhile, pomiferin treatment also inhibited LPS-induced inflammation as well as oxidative stress in lung tissues. LPS stimulation significantly activated AKT/Foxo1 signal pathway in lung tissues, which could be reversed after pomiferin treatment. In vitro experiments further showed that 10, 20, and 50 μM of pomiferin could enhance cell viability of RAW264.7 macrophages stimulated with LPS. What is more, 3-deoxysappanchalcone (3-DE), one AKT agonist, was used to active AKT in RAW264.7 macrophages. The results further showed that 3-DE could abolish pomiferin-elicited protection in LPS-treated RAW264.7 macrophages, evidenced by activated inflammation and oxidative stress. Taken together, our study showed that pomiferin could exert an ARDS-protective effect by blocking the AKT/Foxo1 signal pathway to inhibit LPS-induced inflammatory response and oxidative injury, which may serve as a potential candidate for the treatment of ARDS in the future.
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TGF-β from the Porcine Intestinal Cell Line IPEC-J2 Induced by Porcine Circovirus 2 Increases the Frequency of Treg Cells via the Activation of ERK (in CD4 + T Cells) and NF-κB (in IPEC-J2). Viruses 2022; 14:v14112466. [PMID: 36366564 PMCID: PMC9698303 DOI: 10.3390/v14112466] [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: 10/10/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
Porcine circovirus 2 (PCV2) causes immunosuppression. Piglets infected with PCV2 can develop enteritis. Given that the gut is the largest immune organ, however, the response of the gut's immune system to PCV2 is still unclear. Here, IPEC-J2 cells with different treatments were co-cultured with PBMC or CD4+ T cells (Transwell). Flow cytometry and Western blotting revealed that PCV2-infected IPEC-J2 increased the frequency of CD4+ T cells among piglets' peripheral blood mononuclear cells (PBMCs) and caused CD4+ T cells to undergo a transformation into Foxp3+ regulatory T cells (Treg cells) via activating CD4+ T ERK. Cytokines production and an inhibitor assay showed that the induction of Tregs by PCV2-infected IPEC-J2 was dependent on TGF-β induced by PCV2 in IPEC-J2, which was associated with the activation of NF-κB. Taken together, PCV2-infected IPEC-J2 activated NF-κB to stimulate the synthesis of TGF-β, which enhanced the differentiation of CD4+ T cells into Treg cells through the activation of ERK in CD4+ T cells. This information sheds light on PCV2's function in the intestinal immune system and suggests a potential immunosuppressive mechanism for PCV2 infection.
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The Essential Role of FoxO1 in the Regulation of Macrophage Function. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1068962. [PMID: 35993049 PMCID: PMC9388302 DOI: 10.1155/2022/1068962] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 07/16/2022] [Indexed: 11/17/2022]
Abstract
Macrophages are widely distributed in various tissues and organs. They not only participate in the regulation of innate and adaptive immune response, but also play an important role in tissue homeostasis. Dysregulation of macrophage function is closely related to the initiation, development and prognosis of multiple diseases, including infection and tumorigenesis. Forkhead box transcription factor O1 (FoxO1) is an important member among the forkhead box transcription factor family. Through directly binding to the promoter regions of downstream target genes, FoxO1 is implicated in cell proliferation, apoptosis, metabolic activities and other biological processes. In this review, we summarized the regulatory role of FoxO1 in macrophage phagocytosis, migration, differentiation and inflammatory activation. We also emphasized that macrophage reciprocally modulated FoxO1 activity via a post-translational modification (PTM) dominant manner.
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Huang H, Li Z, Huang J, Xie Y, Xiao Z, Hu Y, Chen G, Wang M, Li Z, Chen Q, Zhu W, Su W, Luo Y, Chen X, Liang D. Apolipoprotein A1 Modulates Teff/Treg Balance Through Scavenger Receptor Class B Type I-Dependent Mechanisms in Experimental Autoimmune Uveitis. Invest Ophthalmol Vis Sci 2022; 63:23. [PMID: 35881406 PMCID: PMC9339694 DOI: 10.1167/iovs.63.8.23] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Purpose Experimental autoimmune uveitis (EAU) is a representative animal model of human uveitis. In this study, we investigated whether apolipoprotein A1 (APOA1) can alleviate EAU and explored its underlying mechanism. Methods Mice were immunized with interphotoreceptor retinoid-binding protein 1-20 and treated with APOA1 or vehicle. The retinas, draining lymph nodes (DLNs), and spleens were analyzed. Isolated T cells were used for proliferation, differentiation, and function assays in vitro. Selective inhibitors and pathway agonists were used to study signaling pathways. The effect of APOA1 on peripheral blood mononuclear cells (PBMCs) from uveitis patients was also examined. Results Administration of APOA1 ameliorated EAU. APOA1 suppressed pathogenic CD4+ T cell expansion in DLNs and spleen, and decreased the infiltration of effector T (Teff) cells into retina. APOA1 also inhibited T cell proliferation and T helper 1 cell differentiation in vitro and promoted regulatory T (Treg) cell differentiation. APOA1 restricted inflammatory cytokine production from lipopolysaccharide-stimulated PBMCs. Mechanistic studies revealed that the effect of APOA1 was mediated by scavenger receptor class B type I (SR-BI) and downstream signals including phosphatidylinositol 3-kinase/Protein kinase B (PKB, or Akt), p38 mitogen-activated protein kinase, and nuclear factor–κB. Conclusions APOA1 ameliorates EAU by regulating the Teff/Treg partially through SR-BI. Our results suggest that APOA1 can be a therapeutic alternative for autoimmune uveitis.
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Affiliation(s)
- Haixiang Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Zhuang Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Jun Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Yanyan Xie
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Zhiqiang Xiao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Yunwei Hu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Guanyu Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Minzhen Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Zuoyi Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Qian Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Wenjie Zhu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Wenru Su
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Yan Luo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Xiaoqing Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Dan Liang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
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Yuan M, Qian X, Huang Y, Ma X, Duan F, Yang Y, Lou B, Lin X. Th17 Activation and Th17/Treg Imbalance in Prolonged Anterior Intraocular Inflammation after Ocular Alkali Burn. Int J Mol Sci 2022; 23:7075. [PMID: 35806082 PMCID: PMC9266712 DOI: 10.3390/ijms23137075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/19/2022] [Accepted: 06/23/2022] [Indexed: 12/12/2022] Open
Abstract
Ocular alkali burn (OAB) is a sight-threatening disease with refractory ocular inflammation causing various blinding complications. Th17 lymphocytes account for the pathogeneses of the autoimmune disease and chronic inflammation, but their role in prolonged anterior intraocular inflammation after OAB is still unknown. A rat OAB model was established for this purpose. Anterior intraocular inflammation was observed in both the acute and late phases of OAB, and histological examination confirmed the presence of inflammatory cell infiltration and fibrin exudation in the anterior segment. Luminex xMAP technology and qPCR were used to evaluate the intraocular levels of cytokines. The levels of IL-1β, IL-6, and TNF-α were significantly elevated during the acute phase. The expression of IL-17A gradually increased from day 7 onwards and remained at a relatively high level. Immunofluorescence was performed to identify Th17 cells. CD4 and IL-17A double positive cells were detected in the anterior chamber from days 7 to 28. Flow cytometry showed that the frequency of Th17 cells increased in both lymph nodes and spleen, while the frequency of Treg cells remained unchanged, resulting in an elevated Th17/Treg ratio. The present study suggests that Th17 activation and Th17/Treg imbalance account for prolonged anterior intraocular inflammation after OAB.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiaofeng Lin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 Xianlie Road, Guangzhou 510060, China; (M.Y.); (X.Q.); (Y.H.); (X.M.); (F.D.); (Y.Y.); (B.L.)
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Lee AY, Foulsham W. Regulatory T Cells: Therapeutic Opportunities in Uveitis. FRONTIERS IN OPHTHALMOLOGY 2022; 2:901144. [PMID: 38983511 PMCID: PMC11182269 DOI: 10.3389/fopht.2022.901144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/28/2022] [Indexed: 07/11/2024]
Abstract
Regulatory T cells (Tregs) are critical for the maintenance of immune tolerance and the suppression of excessive inflammation. Many inflammatory autoimmune disorders, including autoimmune uveitis, involve the loss of the suppressive capacities of Tregs. Over the past decade, Tregs' therapeutic potential in uveitis has garnered increasing attention. Specific subsets of Tregs, including TIGIT+ and PD-1+ Tregs, have emerged as potent immunosuppressors that may be particularly well-suited to cell-based therapeutics. Studies have elucidated the interaction between Treg development and the gut microbiome as well as various intracellular signaling pathways. Numerous cell-based therapies and therapeutic molecules have been proposed and investigated using the murine experimental autoimmune uveitis (EAU) model. However, certain challenges remain to be addressed. Studies involving the use of Tregs in human patients with uveitis are lacking, and there are concerns regarding Tregs' production and purification for practical use, their plasticity towards inflammatory phenotypes, immunogenicity, and tumorigenicity. Nevertheless, recent research has brought Tregs closer to yielding viable treatment options for uveitis.
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Affiliation(s)
| | - William Foulsham
- Department of Ophthalmology, Weill Cornell Medical College, New York, NY, United States
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24
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Sun F, Zhou JL, Wei SX, Jiang ZW, Peng H. Glucocorticoids induce osteonecrosis of the femoral head in rats via PI3K/AKT/FOXO1 signaling pathway. PeerJ 2022; 10:e13319. [PMID: 35529482 PMCID: PMC9074886 DOI: 10.7717/peerj.13319] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/01/2022] [Indexed: 01/15/2023] Open
Abstract
Background Steroid-induced osteonecrosis of the femoral head (SONFH) is a disorder that causes severe disability in patients and has a high incidence worldwide. Although glucocorticoid (GC)-induced apoptosis of osteoblasts is an important cytological basis of SONFH, the detailed mechanism underlying SONFH pathogenesis remains elusive. PI3K/AKT signaling pathway was reported to involve in cell survival and apoptosis. Objective We explored the role of PI3K/AKT/FOXO1 signaling pathway and its downstream targets during glucocorticoid -induced osteonecrosis of the femoral head. Methods We obtained gene expression profile of osteoblasts subjected to dexamethasone (Dex) treatment from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were screened out and functional enrichment analysis were conducted by bioinformatics analysis. In vitro, we analyzed Dex-induced apoptosis in MC3T3-E1 cells and explored the role of PI3K/AKT/FOXO1 signaling pathway in this phenomenon by employing siRNA-FOXO1 and IGF-1(PI3K/AKT agonist). Finally, we verified our results in a rat model of SONFH. Results In Dex-treated osteoblasts, DEGs were mainly enriched in the FOXO signaling pathway. Dex inhibited MC3T3-E1 cell viability in a dose-dependent effect and induced apoptosis by increasing the expression levels of FOXO1, Bax, cleaved-Caspase-3, and cleaved-Caspase-9, while reducing the expression of Bcl-2. Notably, these results were reversed by siRNA-FOXO1 treatment. Dex inhibited PI3K/AKT signaling pathway, upregulated FOXO1 expression and increased FOXO1 nuclear translocation, which were reversed by IGF-1. Compared to normal rats, the femoral head of SONFH showed increased expression of FOXO1, increased number of apoptotic cells, and empty osteocytic lacunas, as well as decreased bone tissue content and femoral head integrity. Significantly, the effects of GC-induced SONFH were alleviated following IGF-1 treatment. Conclusion Dex induces osteoblast apoptosis via the PI3K/AKT/FOXO1 signaling pathway. Our research offers new insights into the underlying molecular mechanisms of glucocorticoid-induced osteonecrosis in SONFH and proposes FOXO1 as a therapeutic target for this disease.
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Affiliation(s)
- Fei Sun
- Renmin Hospital of Wuhan University, Wuhan, China
| | | | - Si Xing Wei
- Renmin Hospital of Wuhan University, Wuhan, China
| | - Ze Wen Jiang
- Renmin Hospital of Wuhan University, Wuhan, China
| | - Hao Peng
- Renmin Hospital of Wuhan University, Wuhan, China
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25
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Cui F, He X. IGF-1 ameliorates streptozotocin-induced pancreatic β cell dysfunction and apoptosis via activating IRS1/PI3K/Akt/FOXO1 pathway. Inflamm Res 2022; 71:669-680. [PMID: 35333936 DOI: 10.1007/s00011-022-01557-3] [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: 08/11/2021] [Revised: 02/18/2022] [Accepted: 02/28/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Type 2 diabetes mellitus (T2DM) is an endocrine disorder with pancreatic β cell dysfunction and/or reduced insulin sensitivity. IGF-1 is critically involved in pancreatic β cell growth, differentiation, and insulin secretion. Insulin-mediated IRS1/PI3K/Akt/FOXO1 signaling has been proved to be closely associated with pancreatic β cell function, hepatic glucose metabolism, and the development of T2DM. This present work was designed to demonstrate the protective role of IGF-1 against pancreatic β cell dysfunction and to probe into the underlying mechanisms. METHODS Herein, cell viability, cell apoptosis, insulin secretion, oxidative stress, and glycolysis in STZ-treated INS-1 cells were measured, so as to determine the biological function of IGF-1 against pancreatic β cell dysfunction in T2DM. Additionally, whether IGF-1 could activate IRS1/PI3K/Akt/FOXO1 signaling pathway to manipulate the progression of T2DM was also investigated. RESULTS It was discovered that IGF-1 treatment enhanced the viability and suppressed the apoptosis of STZ-treated INS-1 cells. Besides, IGF-1 treatment augmented insulin secretion of INS-1 cells in response to STZ. Moreover, IGF-1 exerted protective role against oxidative damage and displayed inhibitory effect on glycolysis in STZ-treated INS-1 cells. Mechanistically, IGF-1 treatment markedly boosted the activation of IRS1/PI3K/Akt/FOXO1 pathway. Furthermore, treatment with AG1024 (an inhibitor of IGF-1R) partially abolished the actions of IGF-1 on cell viability, cell apoptosis, insulin secretion, oxidative stress, and glycolysis in STZ-treated INS-1 cells. CONCLUSION To conclude, IGF-1 could improve the viability and inhibit the apoptosis of STZ-treated pancreatic β cells, induce insulin secretion, alleviate oxidative damage, as well as arrest glycolysis by activating IRS1/PI3K/Akt/FOXO1 pathway.
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Affiliation(s)
- Fan Cui
- Department of Clinical Laboratory, The First People's Hospital of Wuhu, Wuhu, 241000, Anhui Province, China
| | - Xin He
- Clinical Laboratory Center, The First Affiliated Hospital of Jinan University, Tianhe District, No. 613 West Huangpu Avenue, Guangzhou, 510630, Guangdong Province, China.
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26
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Huang P, Wei S, Luo M, Tang Z, Lin Q, Wang X, Luo M, He Y, Wang C, Wei D, Xia C, Xu J. MiR-139-5p has an antidepressant-like effect by targeting phosphodiesterase 4D to activate the cAMP/PKA/CREB signaling pathway. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1594. [PMID: 34790800 PMCID: PMC8576692 DOI: 10.21037/atm-21-5149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/22/2021] [Indexed: 12/14/2022]
Abstract
Background Phosphodiesterase 4D (PDE4D) inhibitor is commonly used to treat depression, but side effects seriously decrease its efficacy. PDE4D was a downstream target mRNA of miR-139-5p. Therefore, we examined the effects of hippocampal miR-139-5p gain- and loss-of-function on depression-like behaviors, the expression level of PDE4D, and hippocampus neurogenesis. Methods Bioinformatic analyses were carried out to to screen differential genes. Quantitative real-time polymerase chain reaction (qRT-PCR) and luciferase reporter assay were used to confirm the relationship between miR-139-5p and PDE4D. MiR-139-5p mimics, miR-139-5p inhibitor, or miR-NC were used to explore the function of miR-139-5p in HT-22 cells. We further explored the role of miR-139-5p in vivo using AAV-injection. Elisa, western blotting, and fluorescence in situ hybridization (FISH) were used to detect the expression of miR-139-5p and PDE4D in CRC tissues. Results Here, we showed that PDE4D messenger RNA (mRNA) was a direct target of microRNA (miR)-139-5p, which was downregulated in a chronic ultra-mild stress (CUMS)-induced depression mouse model. Moreover, in experiments in vitro, miR-139-5p mimic repressed PDE4D expression in HT-22 cells, but promoted phosphorylated cyclic-AMP response element-binding protein (p-CREB) and brain-derived neurotrophic factor (BDNF) expression. Interestingly, adeno-associated virus (AAV)-miR-139-5p downregulated susceptibility to stress-induced depression-like behaviors in mice. AAV-miR-139-5p suppressed PDE4D in mouse hippocampal cells, increasing expression level of cyclic adenosine monophosphate (cAMP), p-CREB, and BDNF, and stimulating mouse hippocampal neurogenesis. Conclusions Our findings suggested that miR-139-5p acted like an antidepressant by targeting PDE4D, thereby regulating the cAMP/protein kinase A (PKA)/CREB/BDNF pathway to improve depression.
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Affiliation(s)
- Peng Huang
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, China
| | - Songren Wei
- Department of Neuropharmacology and Novel Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Meng Luo
- Center for Bioinformatics, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Zhuohong Tang
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, China
| | - Qingmei Lin
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, China
| | - Xing Wang
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, China
| | - Mi Luo
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, China
| | - Yanjun He
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, China
| | - Chuan Wang
- Department of Biliary Surgery, The First People's Hospital of Foshan, Foshan, China
| | - Dezhan Wei
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, China
| | - Chenglai Xia
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, China.,School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jiangping Xu
- Department of Neuropharmacology and Novel Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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KleinJan A. Immune checkpoint skewing might be the cause of continuous immune activation in nasal polyps: New opportunities for therapies. J Allergy Clin Immunol 2021; 149:538-540. [PMID: 34798040 DOI: 10.1016/j.jaci.2021.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/04/2021] [Accepted: 11/10/2021] [Indexed: 11/24/2022]
Affiliation(s)
- Alex KleinJan
- Department of Pulmonary Medicine, Erasmus Medical Center Rotterdam, Rotterdam, The Netherlands.
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28
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Uchida H, Kamata M, Shimizu T, Egawa S, Ito M, Takeshima R, Mizukawa I, Watanabe A, Tada Y. Apremilast downregulates interleukin-17 production and induces splenic regulatory B cells and regulatory T cells in imiquimod-induced psoriasiform dermatitis. J Dermatol Sci 2021; 104:55-62. [PMID: 34548208 DOI: 10.1016/j.jdermsci.2021.08.001] [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: 05/19/2021] [Revised: 07/23/2021] [Accepted: 08/01/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Apremilast, a selective inhibitor of the enzyme phosphodiesterase 4, is efficacious for psoriasis. However, detailed in vivo effects of apremilast on psoriasis remain to be elucidated. OBJECTIVE To examine the in vivo effects of apremilast on psoriasis. METHODS Psoriasiform dermatitis was induced by applying imiquimod (IMQ) on the murine shaved back skin for six days. Mice were treated with apremilast or vehicle intraperitoneally daily. RESULTS Apremilast alleviated IMQ-induced psoriasiform dermatitis clinically and pathologically on days 3-6 by reducing infiltration of antigen-presenting cells and interleukin (IL)-17A-positive cells and increasing infiltration of Foxp3-postive cells into the skin on day 6, although a significant increase in IL-10 mRNA level was not observed on day 2. In addition, mRNA expression of IL-17A, IL-17F, and IL-22 was lower in the skin of IMQ-applied mice treated with apremilast than in those without apremilast on day 2, and apremilast inhibited infiltration of IL-17A-producing γδ T cells into the dermis on day 6. Furthermore, apremilast induced regulatory T cells and regulatory B cells in the spleen but not in the draining lymph nodes. CONCLUSION Apremilast downregulated IL-17 production and induced splenic regulatory B cells and regulatory T cells in an IMQ-induced psoriasiform dermatitis mouse model.
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Affiliation(s)
- Hideaki Uchida
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Masahiro Kamata
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan.
| | - Teruo Shimizu
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Shota Egawa
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Makoto Ito
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Ryosuke Takeshima
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Itsumi Mizukawa
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Ayu Watanabe
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Yayoi Tada
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
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B cell depletion changes the immune cell profile in multiple sclerosis patients: One-year report. J Neuroimmunol 2021; 359:577676. [PMID: 34364105 DOI: 10.1016/j.jneuroim.2021.577676] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 07/27/2021] [Accepted: 07/27/2021] [Indexed: 01/02/2023]
Abstract
B cell depletion therapy has been shown to be beneficial in multiple sclerosis (MS). However, the mechanism by which B cell depletion mediates its beneficial effects in MS is still unclear. To better understand how B cell depletion may benefit patients with a disease previously thought to be primarily mediated by CD4 T cells, immune profiles were monitored in 48 patients in a phase II trial of ublituximab, a glycoengineered CD20 monoclonal antibody, at 18 time points over a year. As we previously described there was a significant shift in the percentages of T cells, NK cells, and myeloid cells following the initial dose of ublituximab, but this shift normalized within a week and these populations remained stable for the duration of the study. However, T cell subsets changed with an increase in the percentage of naïve CD4 and CD8 T cells and a decline in memory T cells. Importantly, the percentage of Th1 and CD4+GM-CSF+ T cells decreased, while the percentage of Tregs continued to increase over the year. Ublituximab not only depleted CD20+ B cells, but also CD20+ T cells. The favorable changes in the T cell subsets may contribute to the beneficial effects of B cell depletion therapy.
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Touhami S, Gueudry J, Leclercq M, Touitou V, Ghembaza A, Errera MH, Saadoun D, Bodaghi B. Perspectives for immunotherapy in noninfectious immune mediated uveitis. Expert Rev Clin Immunol 2021; 17:977-989. [PMID: 34264142 DOI: 10.1080/1744666x.2021.1956313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Introduction: Noninfectious uveitis (NIU) is one of the leading causes of blindness worldwide. In adult patients, anterior NIU is usually managed with topical corticosteroids. In intermediate, posterior uveitis. and panuveitis, systemic corticosteroids are used especially in case of bilaterality or association with systemic disease. Biotherapies are recommended in case of inefficacy or intolerance to corticosteroids or conventional immunosuppressive drugs. Anti-TNF-α agents are by far the most widely used biotherapies. In case of failure or poor tolerance to anti-TNF-α, new targeted therapies can be proposed.Areas covered: We present and discuss an updated overview on biologics and biotherapies in NIU.Expert opinion: In case of dependency to systemic or intravitreal steroids, sight-threatening disease, and/or failure of conventional immunosuppressive drugs, anti-TNF-α are used as first-line biologics to achieve quiescence of inflammation. Anti-interleukin-6 is another option that may be proposed as first-line biologic or in case of poor efficacy of anti-TNF-α. Interferon can be directly proposed in specific indications (e.g. refractory macular edema, sight-threatening Behçet's uveitis). In the rare cases that remain unresponsive to traditional biotherapies, novel molecules, such as Janus-associated-kinase and anti-phosphodiesterase-4-inhibitors can be used. Therapeutic response must always be evaluated by clinical and appropriate ancillary investigations.
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Affiliation(s)
- Sara Touhami
- Department of Ophthalmology, DHU ViewRestore, Sorbonne Université, Paris, France
| | - Julie Gueudry
- Department of Ophthalmology Charles Nicolle University Hospital, Rouen, France
| | - Mathilde Leclercq
- Sorbonne Université, AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Département De Médecine Interne Et Immunologie Clinique, Paris, France, Centre National De Références Maladies Autoimmunes Systémiques Rares, Centre National De Références Maladies Autoinflammatoires Et Amylose Inflammatoire; Inflammation-Immunopathology-Biotherapy Department (DMU 3iD); INSERM 959, Groupe Hospitalier Pitié-Salpêtrière, AP-HP, Paris, France.,CHU Rouen, Department of Internal Medicine, Rouen, France
| | - Valérie Touitou
- Department of Ophthalmology, DHU ViewRestore, Sorbonne Université, Paris, France
| | - Amine Ghembaza
- Sorbonne Université, AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Département De Médecine Interne Et Immunologie Clinique, Paris, France, Centre National De Références Maladies Autoimmunes Systémiques Rares, Centre National De Références Maladies Autoinflammatoires Et Amylose Inflammatoire; Inflammation-Immunopathology-Biotherapy Department (DMU 3iD); INSERM 959, Groupe Hospitalier Pitié-Salpêtrière, AP-HP, Paris, France
| | - Marie Hélène Errera
- Ophthalmology Department and Laboratory and DHU Sight Restore, Centre Hospitalier National d'Ophtalmologie Des Quinze-Vingts, Sorbonne Université, Paris, France.,Department of Ophthalmology, Pittsburgh University Hospital, Pittsburgh, PA, USA
| | - David Saadoun
- Sorbonne Université, AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Département De Médecine Interne Et Immunologie Clinique, Paris, France, Centre National De Références Maladies Autoimmunes Systémiques Rares, Centre National De Références Maladies Autoinflammatoires Et Amylose Inflammatoire; Inflammation-Immunopathology-Biotherapy Department (DMU 3iD); INSERM 959, Groupe Hospitalier Pitié-Salpêtrière, AP-HP, Paris, France
| | - Bahram Bodaghi
- Department of Ophthalmology, DHU ViewRestore, Sorbonne Université, Paris, France
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Zhang S, Gang X, Yang S, Cui M, Sun L, Li Z, Wang G. The Alterations in and the Role of the Th17/Treg Balance in Metabolic Diseases. Front Immunol 2021; 12:678355. [PMID: 34322117 PMCID: PMC8311559 DOI: 10.3389/fimmu.2021.678355] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/22/2021] [Indexed: 12/17/2022] Open
Abstract
Chronic inflammation plays an important role in the development of metabolic diseases. These include obesity, type 2 diabetes mellitus, and metabolic dysfunction-associated fatty liver disease. The proinflammatory environment maintained by the innate immunity, including macrophages and related cytokines, can be influenced by adaptive immunity. The function of T helper 17 (Th17) and regulatory T (Treg) cells in this process has attracted attention. The Th17/Treg balance is regulated by inflammatory cytokines and various metabolic factors, including those associated with cellular energy metabolism. The possible underlying mechanisms include metabolism-related signaling pathways and epigenetic regulation. Several studies conducted on human and animal models have shown marked differences in and the important roles of Th17/Treg in chronic inflammation associated with obesity and metabolic diseases. Moreover, Th17/Treg seems to be a bridge linking the gut microbiota to host metabolic disorders. In this review, we have provided an overview of the alterations in and the functions of the Th17/Treg balance in metabolic diseases and its role in regulating immune response-related glucose and lipid metabolism.
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Affiliation(s)
- Siwen Zhang
- Department of Endocrinology & Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Xiaokun Gang
- Department of Endocrinology & Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Shuo Yang
- Department of Endocrinology & Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Mengzhao Cui
- Department of Endocrinology & Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Lin Sun
- Department of Endocrinology & Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Zhuo Li
- Department of Endocrinology & Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Guixia Wang
- Department of Endocrinology & Metabolism, The First Hospital of Jilin University, Changchun, China
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