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Scurt FG, Bose K, Hammoud B, Brandt S, Bernhardt A, Gross C, Mertens PR, Chatzikyrkou C. Old known and possible new biomarkers of ANCA-associated vasculitis. J Autoimmun 2022; 133:102953. [PMID: 36410262 DOI: 10.1016/j.jaut.2022.102953] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/06/2022] [Accepted: 11/06/2022] [Indexed: 11/19/2022]
Abstract
Antineutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV) comprises a group of multisystem disorders involving severe, systemic, small-vessel vasculitis with short- and long term serious and life-threating complications. Despite the simplification of treatment, fundamental aspects concerning assessment of its efficacy and its adaptation to encountered complications or to the relapsing/remitting/subclinical disease course remain still unknown. The pathogenesis of AAV is complex and unique, and despite the progress achieved in the last years, much has not to be learnt. Foremost, there is still no accurate marker enabling us to monitoring disease and guide therapy. Therefore, the disease management relays often on clinical judgment and follows a" trial and error approach". In the recent years, an increasing number of new molecules s have been explored and used for this purpose including genomics, B- and T-cell subpopulations, complement system factors, cytokines, metabolomics, biospectroscopy and components of our microbiome. The aim of this review is to discuss both the role of known historical and clinically established biomarkers of AAV, as well as to highlight potential new ones, which could be used for timely diagnosis and monitoring of this devastating disease, with the goal to improve the effectiveness and ameliorate the complications of its demanding therapy.
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Affiliation(s)
- Florian G Scurt
- University Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, University Hospital Magdeburg, Otto-von-Guericke University Magdeburg, Germany.
| | - K Bose
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Magdeburg, Otto-von-Guericke University Magdeburg, Germany
| | - Ben Hammoud
- University Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, University Hospital Magdeburg, Otto-von-Guericke University Magdeburg, Germany
| | - S Brandt
- University Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, University Hospital Magdeburg, Otto-von-Guericke University Magdeburg, Germany
| | - A Bernhardt
- University Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, University Hospital Magdeburg, Otto-von-Guericke University Magdeburg, Germany
| | - C Gross
- University Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, University Hospital Magdeburg, Otto-von-Guericke University Magdeburg, Germany
| | - Peter R Mertens
- University Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, University Hospital Magdeburg, Otto-von-Guericke University Magdeburg, Germany
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2
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Furue M. Regulation of Skin Barrier Function via Competition between AHR Axis versus IL-13/IL-4‒JAK‒STAT6/STAT3 Axis: Pathogenic and Therapeutic Implications in Atopic Dermatitis. J Clin Med 2020; 9:E3741. [PMID: 33233866 PMCID: PMC7700181 DOI: 10.3390/jcm9113741] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/16/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023] Open
Abstract
Atopic dermatitis (AD) is characterized by skin inflammation, barrier dysfunction, and chronic pruritus. As the anti-interleukin-4 (IL-4) receptor α antibody dupilumab improves all three cardinal features of AD, the type 2 cytokines IL-4 and especially IL-13 have been indicated to have pathogenic significance in AD. Accumulating evidence has shown that the skin barrier function is regulated via competition between the aryl hydrocarbon receptor (AHR) axis (up-regulation of barrier) and the IL-13/IL-4‒JAK‒STAT6/STAT3 axis (down-regulation of barrier). This latter axis also induces oxidative stress, which exacerbates inflammation. Conventional and recently developed agents for treating AD such as steroid, calcineurin inhibitors, cyclosporine, dupilumab, and JAK inhibitors inhibit the IL-13/IL-4‒JAK‒STAT6/STAT3 axis, while older remedies such as coal tar and glyteer are antioxidative AHR agonists. In this article, I summarize the pathogenic and therapeutic implications of the IL-13/IL-4‒JAK‒STAT6/STAT3 axis and the AHR axis in AD.
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Affiliation(s)
- Masutaka Furue
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan; ; Tel.: +81-92-642-5581; Fax: +81-92-642-5600
- Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka 812-8582, Japan
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3
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Fernández RDV, Díaz A, Bongiovanni B, Gallucci G, Bértola D, Gardeñez W, Lioi S, Bertolin Y, Galliano R, Bay ML, Bottasso O, D'Attilio L. Evidence for a More Disrupted Immune-Endocrine Relation and Cortisol Immunologic Influences in the Context of Tuberculosis and Type 2 Diabetes Comorbidity. Front Endocrinol (Lausanne) 2020; 11:126. [PMID: 32265833 PMCID: PMC7099637 DOI: 10.3389/fendo.2020.00126] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 02/25/2020] [Indexed: 12/18/2022] Open
Abstract
Pulmonary tuberculosis (PTB), caused by Mycobacterium tuberculosis (Mtb), is a major health problem worldwide, further aggravated by the convergence of type 2 diabetes mellitus (DM) which constitutes an important risk factor for TB development. The worse scenario of patients with PTB and DM may be partly related to a more unbalanced defensive response. As such, newly diagnosed PTB patients with DM (TB+DM, n = 11) or not (TB, n = 21), as well as DM (n = 18) patients and pair matched controls (Co, n = 22), were investigated for the circulating immuno-endocrine-metabolic profile (ELISA), along with studies in peripheral blood mononuclear cells (PBMC) analyzing transcript expression (RT-qPCR) of mediators involved in glucocorticoid functionality. Given the hyperglycemic/hypercortisolemic scenario of TB+DM patients, PBMC were also exposed to stress-related cortisol concentrations (0.1 and 1 μM) and supraphysiologic glucose doses (10, 20, and 40 mM) and assessed for the specific response against Mtb stimulation (lymphoproliferation, -thymidine incorporation-, and cytokine production -bead-cytometry). All TB patients displayed increased plasma amounts of cortisol, growth hormone -hGH-, and proinflammatory mediators. In turn, TB+DM showed even higher levels of interferon gamma -IFN-γ- and hGH (vs. TB), or IL-6, C reactive protein, cortisol and hGH (vs. DM). Both DM groups had equally augmented values of IL-10. All TB patients showed decreased dehydroepiandrosterone- sulfate concentrations, even more in TB+DM cases. Leptin was also decreased in both TB cases, particularly in the TB group, revealing a lower body mass index, as well. Unlike PBMC from TB cases showing a decreased relationship between the glucocorticoids receptor (GR) isoforms (GRα/GRβ; functional isoform/negative isoform), cells from TB+DM patients had no changes in this regard, along with an increased expression of 11-beta hydroxysteroid dehydrogenase type-1, the enzyme facilitating intracellular cortisone to cortisol conversion. TB+DM patients also showed an increased Mtb antigen-driven lymphoproliferation. Compared to TB, DM and HCo counterparts, PBMC from TB+DM patients had a biased Th1 response to Mtb stimulation (increased IL-2 and IFN-γ production), even when exposed to inhibitory cortisol doses. TB+DM patients show a more unbalanced immuno-endocrine relationship, respect the non-diabetic counterparts, with a relative deficiency of cortisol immunomodulatory influences, despite their more favorable microenvironment for cortisol-mediated immune effects.
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Affiliation(s)
- Rocío D. V. Fernández
- Instituto de Inmunología Clínica y Experimental de Rosario CONICET-UNR, Rosario, Argentina
- Facultad de Ciencias Médicas, UNR, Rosario, Argentina
| | - Ariana Díaz
- Instituto de Inmunología Clínica y Experimental de Rosario CONICET-UNR, Rosario, Argentina
- Facultad de Ciencias Médicas, UNR, Rosario, Argentina
| | - Bettina Bongiovanni
- Instituto de Inmunología Clínica y Experimental de Rosario CONICET-UNR, Rosario, Argentina
| | - Georgina Gallucci
- Instituto de Inmunología Clínica y Experimental de Rosario CONICET-UNR, Rosario, Argentina
| | - Diego Bértola
- Facultad de Ciencias Médicas, UNR, Rosario, Argentina
- Hospital Provincial del Centenario, Rosario, Argentina
| | - Walter Gardeñez
- Servicio de Neumonología, Hospital Provincial del Centenario, Rosario, Argentina
| | - Susana Lioi
- Laboratorio Central, Hospital Provincial del Centenario, Rosario, Argentina
| | - Yésica Bertolin
- Servicio de Medicina Transfusional, Hospital Provincial del Centenario, Rosario, Argentina
| | - Romina Galliano
- Servicio de Medicina Transfusional, Hospital Provincial del Centenario, Rosario, Argentina
| | - María L. Bay
- Instituto de Inmunología Clínica y Experimental de Rosario CONICET-UNR, Rosario, Argentina
- Facultad de Ciencias Médicas, UNR, Rosario, Argentina
| | - Oscar Bottasso
- Instituto de Inmunología Clínica y Experimental de Rosario CONICET-UNR, Rosario, Argentina
- Facultad de Ciencias Médicas, UNR, Rosario, Argentina
| | - Luciano D'Attilio
- Instituto de Inmunología Clínica y Experimental de Rosario CONICET-UNR, Rosario, Argentina
- Facultad de Ciencias Médicas, UNR, Rosario, Argentina
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4
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Huang X, Huang Q, He Y, Chen S, Li T. Mycophenolic acid enhanced lipopolysaccharide-induced interleukin-18 release in THP-1 cells via activation of the NLRP3 inflammasome. Immunopharmacol Immunotoxicol 2019; 41:521-526. [PMID: 31429348 DOI: 10.1080/08923973.2019.1652913] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background: Interleukin (IL)-18 is a pro-inflammatory cytokine that has important functions in host defense. The maturation and secretion of IL-18 has been shown to be regulated by the NOD-like receptor (NLR) family pyrin domain-containing 3 (NLRP3) inflammasome. Mycophenolic acid (MPA), the active metabolite of mycophenolate mofetil (MMF), in association with lipopolysaccharide (LPS), is able to promote the secretion of IL-18, but the mechanism remains unknown. This study aims to explore the mechanism by which MPA synergizes with LPS to induced IL-18 release. Methods: THP-1 cells were stimulated with LPS and MPA and treated with or without the inhibitors of caspase-1, Ac-YVAD-cmk or KCl; IL-18 in the supernatants was measured by ELISA. The intracellular protein levels of NF-κB p-p65, pro-IL-18, NLRP3, and cleaved caspase-1(p20) were measured by Western blot. Results: We found that MPA alone failed to induce IL-18, whereas MPA enhanced LPS-mediated IL-18 release. MPA did not affect the intracellular protein levels of NF-κB p-p65 or pro-IL-18 but activated the NLRP3 inflammasome. Ac-YVAD-cmk or increasing extracellular K+ blocked the activation of caspase-1 and attenuated the release of IL-18. Conclusions: Taken together, MPA synergized with LPS to induce the release of IL-18 via activating the NLRP3 inflammasome and increasing the degradation of pro-IL-18, rather than by enhancing the production of pro-IL-18.
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Affiliation(s)
- Xuechan Huang
- Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital , Guangzhou , PR China.,The Second School of Clinical Medicine, Southern Medical University , Guangzhou , PR China
| | - Qidang Huang
- Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital , Guangzhou , PR China.,The Second School of Clinical Medicine, Southern Medical University , Guangzhou , PR China
| | - Yi He
- Department of Rheumatology and Immunology, The Third Affiliated Hospital, Southern Medical University , Guangzhou , PR China.,Institute of Clinical Immunology, Academy of Orthopedics , Guangzhou , PR China
| | - Shuyang Chen
- Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital , Guangzhou , PR China.,The Second School of Clinical Medicine, Southern Medical University , Guangzhou , PR China
| | - Tianwang Li
- Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital , Guangzhou , PR China.,The Second School of Clinical Medicine, Southern Medical University , Guangzhou , PR China
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5
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Martinez Valenzuela L, Bordignon Draibe J, Fulladosa Oliveras X, Bestard Matamoros O, Cruzado Garrit JM, Torras Ambrós J. T-lymphocyte in ANCA-associated vasculitis: what do we know? A pathophysiological and therapeutic approach. Clin Kidney J 2019; 12:503-511. [PMID: 31384441 PMCID: PMC6671423 DOI: 10.1093/ckj/sfz029] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Indexed: 12/11/2022] Open
Abstract
Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is an autoimmune condition that commonly causes kidney impairment and can be fatal. The key participation of B-lymphocytes as ANCA producers and neutrophils as target of these antibodies is widely described as the mechanism of endothelial damage in this disease. There has been a rising interest in the role of T-lymphocytes in AAV in recent years. Evidence is strong from animal models, and T-lymphocytes can be found infiltrating kidney tissue and other tissue sites in AAV patients. Furthermore, the different subsets of T-lymphocytes are also key players in the aberrant immune response observed in AAV. Polarization towards a predominant Th1 and Th17 response in the acute phase of the disease has been described, along with a decline in the number of T-regulatory lymphocytes, which, in turn, show functional impairment. Interactions between different T-cell subsets, and between T-cells and neutrophils and B-cells, also enhance the inflammatory response, constituting a complex network. Novel therapies targeting T-cell immunity are emerging in this scenario and may constitute an interesting alternative to conventional therapy in selected patients. This review aims to summarize the available evidence regarding T-cell imbalances and functional impairment, especially focusing on renal involvement of AAV.
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Affiliation(s)
- Laura Martinez Valenzuela
- Bellvitge University Hospital, Nephrology Unit, Hospitalet de Llobregat, Spain.,IDIBELL Bellvitge Biomedical Research Institute, Hospitalet de Llobregat, Spain
| | - Juliana Bordignon Draibe
- Bellvitge University Hospital, Nephrology Unit, Hospitalet de Llobregat, Spain.,IDIBELL Bellvitge Biomedical Research Institute, Hospitalet de Llobregat, Spain
| | - Xavier Fulladosa Oliveras
- Bellvitge University Hospital, Nephrology Unit, Hospitalet de Llobregat, Spain.,IDIBELL Bellvitge Biomedical Research Institute, Hospitalet de Llobregat, Spain
| | - Oriol Bestard Matamoros
- Bellvitge University Hospital, Nephrology Unit, Hospitalet de Llobregat, Spain.,IDIBELL Bellvitge Biomedical Research Institute, Hospitalet de Llobregat, Spain.,Clinical Science Department, Barcelona University, Hospitalet de Llobregat, Spain
| | - Josep Maria Cruzado Garrit
- Bellvitge University Hospital, Nephrology Unit, Hospitalet de Llobregat, Spain.,IDIBELL Bellvitge Biomedical Research Institute, Hospitalet de Llobregat, Spain.,Clinical Science Department, Barcelona University, Hospitalet de Llobregat, Spain
| | - Juan Torras Ambrós
- Bellvitge University Hospital, Nephrology Unit, Hospitalet de Llobregat, Spain.,IDIBELL Bellvitge Biomedical Research Institute, Hospitalet de Llobregat, Spain.,Clinical Science Department, Barcelona University, Hospitalet de Llobregat, Spain
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6
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Huang XC, He Y, Zhuang J, He J, Luo GH, Han JC, Sun EW. Mycophenolic Acid Synergizing with Lipopolysaccharide to Induce Interleukin-1β Release via Activation of Caspase-1. Chin Med J (Engl) 2018; 131:1533-1540. [PMID: 29941706 PMCID: PMC6032679 DOI: 10.4103/0366-6999.235116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background The previous study showed that mycophenolic acid (MPA) synergizing with lipopolysaccharide (LPS) promoted interleukin (IL)-1β release, but the mechanism is unclear. This study aimed to investigate the mechanism of MPA synergizing with LPS to induce IL-1β release. Methods Undiluted human blood cells, THP-1 human myeloid leukemia mononuclear cells (THP-1) cells, or monocytes were stimulated with LPS and treated with or without MPA, and the supernatant IL-1β was detected by enzyme-linked immunosorbent assay. The mRNA levels of IL-1β were detected by real-time quantitative polymerase chain reaction. The intracellular protein levels of nuclear factor kappa B (NF-κB) phospho-p65 (p-p65), precursor interleukin-1β (pro-IL-1β), NOD-like receptor pyrin domain containing-3 (NLRP3), and cysteine aspartic acid-specific protease-1 (caspase-1) p20 in THP-1 cell were measured by Western blot. Results The MPA alone failed to induce IL-1β, whereas MPA synergized with LPS to increase IL-1β in a dose-dependent manner (685.00 ± 20.00 pg/ml in LPS + 5 μmol/L MPA group, P = 0.035; 742.00 ± 31.58 pg/ml in LPS + 25 μmol/L MPA group, P = 0.017; 1000.00 ± 65.59 pg/ml in LPS + 75 μmol/L MPA group, P = 0.024; versus 408.00 ± 35.50 pg/ml in LPS group). MPA alone has no effect on the IL-1β mRNA expression, LPS induced the expression of IL-1β mRNA 2761 fold, and LPS + MPA increased the IL-1β expression 3018 fold, which had the same effect with LPS group (P = 0.834). MPA did not affect the intracellular NF-κB p-p65 and pro-IL-1β protein levels but activated NLRP3 inflammasome. Ac-YVAD-cmk blocked the activation of caspase-1 and subsequently attenuated IL-1β secretion (181.00 ± 45.24 pg/ml in LPS + MPA + YVAD group vs. 588.00 ± 41.99 pg/ml in LPS + MPA group, P = 0.014). Conclusions Taken together, MPA synergized with LPS to induce IL-1β release via the activation of caspase-1, rather than the enhanced production of pro-IL-1β. These findings suggested that patients immunosuppressed with mycophenolate mofetil may have overly activated caspase-1 during infection, which might contribute to a more sensitive host defense response to invading germs.
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Affiliation(s)
- Xue-Chan Huang
- Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yi He
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510630, China; Institute of Clinical Immunology, Academy of Orthopedics, Guangdong Province, Guangzhou, Guangdong 510630, China
| | - Jian Zhuang
- Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Juan He
- Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Gui-Hu Luo
- Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jiao-Chan Han
- Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Er-Wei Sun
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510630, China; Institute of Clinical Immunology, Academy of Orthopedics, Guangdong Province, Guangzhou, Guangdong 510630, China
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7
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Hou H, Zhou Y, Yu J, Mao L, Bosco MJ, Wang J, Lu Y, Mao L, Wu X, Wang F, Sun Z. Establishment of the Reference Intervals of Lymphocyte Function in Healthy Adults Based on IFN-γ Secretion Assay upon Phorbol-12-Myristate-13-Acetate/Ionomycin Stimulation. Front Immunol 2018; 9:172. [PMID: 29467761 PMCID: PMC5808316 DOI: 10.3389/fimmu.2018.00172] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 01/19/2018] [Indexed: 11/13/2022] Open
Abstract
The function of lymphocytes is the key to reflect the immune status of hosts. Evaluation of lymphocyte function is a useful tool to monitor the effect of immunosuppressive treatment and predict the prognosis of immune-mediated diseases (e.g., cancer, autoimmune diseases, and infectious diseases). As the lymphocytes have various activities, such as activation, cytotoxicity, and cytokine secretion, it is a challenge to evaluate the function of lymphocytes in clinical practice and the reference intervals (RIs) of lymphocyte function are rarely reported. The present study showed that the secretion of IFN-γ was well correlated with the activation, chemotaxis, and cytotoxicity of CD4+, CD8+ T cells, and NK cells, which suggests that IFN-γ production can be used as a symbol of lymphocyte function. We therefore created a simple method to detect the function of CD4+, CD8+ T cells, and NK cells simultaneously according to IFN-γ secretion by using whole blood instead of peripheral blood mononuclear cells. We further established the RIs of lymphocyte function (CD4+ T cells: 15.31-34.98%; CD8+ T cells: 26.11-66.59%; NK cells: 39.43-70.79%) in healthy adults. This method showed good reproducibility for the evaluation of lymphocyte function. The established RIs were suitable for use in other centers based on the validation data. We also validated the RIs in individuals with different immune status, and the results showed that kidney transplant recipients and infants (0-1 year) had a decreased lymphocyte function, whereas T cells in systemic lupus erythematosus patients exhibited an opposite trend. Overall, we have successfully established the RIs of lymphocyte function in healthy adults in a simple way, which might be of important clinical value in the diagnosis, monitoring, and prognosis of immune-related diseases.
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Affiliation(s)
- Hongyan Hou
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Zhou
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Yu
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lie Mao
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Munyemana Jean Bosco
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juan Wang
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanfang Lu
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liyan Mao
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohui Wu
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Wang
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ziyong Sun
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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8
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Svedberg G, Jeong Y, Na H, Jang J, Nilsson P, Kwon S, Gantelius J, Svahn HA. Towards encoded particles for highly multiplexed colorimetric point of care autoantibody detection. LAB ON A CHIP 2017; 17:549-556. [PMID: 28102419 DOI: 10.1039/c6lc01358a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Highly multiplexed point of care tests could improve diagnostic accuracy and differential diagnostic capacity in for instance emergency medicine and low resource environments. Available technology platforms for POC biomarker detection are typically simplex or low-plexed, whereas common lab-based microarray systems allow for the simultaneous detection of thousands of DNA or protein biomarkers. In this study, we demonstrate a novel suspension particle array platform that utilizes 900 μm bricks for POC amenable colorimetric biomarker detection with an encoding capacity of over two million. Due to the mm-scale size, both the lithographic codes and colorimetric signals of individual particles can be visualized using a consumer grade office flatbed scanner, with a potential for simultaneous imaging of around 19 000 particles per scan. The analytical sensitivity of the assay was determined to be 4 ng ml-1 using an antibody model system. As a proof of concept, autoantibodies toward anoctamin 2 were detected in order to discriminate between multiple sclerosis plasma samples and healthy controls with p < 0.0001 and an inter-assay % CV of 9.44%.
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Affiliation(s)
- Gustav Svedberg
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, School of Biotechnology, KTH Royal Institute of Technology, SE-17165 Stockholm, Sweden.
| | - Yunjin Jeong
- Department of Electrical and Computer Science, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-742, Republic of Korea. and Institutes of Entrepreneurial BioConvergence, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Hunjong Na
- Department of Electrical and Computer Science, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-742, Republic of Korea. and QuantaMatrix Inc. 105, B1, Center for medical innovation, Seoul National University Hospital, Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Jisung Jang
- QuantaMatrix Inc. 105, B1, Center for medical innovation, Seoul National University Hospital, Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Peter Nilsson
- Affinity Proteomics, Science for Life Laboratory, School of Biotechnology, KTH Royal Institute of Technology, SE-17165 Stockholm, Sweden
| | - Sunghoon Kwon
- Department of Electrical and Computer Science, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-742, Republic of Korea. and Institutes of Entrepreneurial BioConvergence, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-742, Republic of Korea and QuantaMatrix Inc. 105, B1, Center for medical innovation, Seoul National University Hospital, Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Jesper Gantelius
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, School of Biotechnology, KTH Royal Institute of Technology, SE-17165 Stockholm, Sweden.
| | - Helene Andersson Svahn
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, School of Biotechnology, KTH Royal Institute of Technology, SE-17165 Stockholm, Sweden.
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9
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Rodríguez-Tovar LE, Castillo-Velázquez U, Arce-Mendoza AY, Nevárez-Garza AM, Zarate-Ramos JJ, Hernández-Vidal G, Rodríguez-Ramírez HG, Trejo-Chávez A. Interferon γ and interleukin 10 responses in immunocompetent and immunosuppressed New Zealand White rabbits naturally infected with Encephalitozoon cuniculi. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 62:82-88. [PMID: 27156850 DOI: 10.1016/j.dci.2016.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 05/03/2016] [Accepted: 05/03/2016] [Indexed: 06/05/2023]
Abstract
Levels of interferon (IFN)-γ and interleukin (IL)-10 were measured in the serum of immunocompetent and immunosuppressed New Zealand White rabbits naturally infected with Encephalitozoon cuniculi. IFN-γ levels were elevated in infected rabbits, and a synergic effect was observed in animals treated with the immunosuppressive agent dexamethasone (Dex). The role of IL-10 in infected rabbits remains unclear, as IL-10 levels were similar to those of negative controls. Dex appeared to exhibit a proinflammatory effect, as IFN-γ levels were elevated in infected immunosuppressed rabbits. Similarly, Dex exhibited a synergic effect in infected immunosuppressed rabbits, as evidenced by the elevation in IFN-γ production. These data indicate that the immune response to this glucocorticoid should be considered in the design of future animal model studies of immunosuppression.
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Affiliation(s)
- Luis E Rodríguez-Tovar
- Cuerpo Académico de Zoonosis y Enfermedades Emergentes, Facultad de Medicina Veterinaria, UANL, General Escobedo, N. L., CP 66050, Mexico
| | - Uziel Castillo-Velázquez
- Cuerpo Académico de Zoonosis y Enfermedades Emergentes, Facultad de Medicina Veterinaria, UANL, General Escobedo, N. L., CP 66050, Mexico.
| | - Alma Y Arce-Mendoza
- Cuerpo Académico de Inmunología Clínica y Dermatología, Facultad de Medicina, UANL, Col. Mitras Centro, Monterrey, N. L., CP 64460, Mexico
| | - Alicia M Nevárez-Garza
- Cuerpo Académico de Zoonosis y Enfermedades Emergentes, Facultad de Medicina Veterinaria, UANL, General Escobedo, N. L., CP 66050, Mexico
| | - Juan J Zarate-Ramos
- Cuerpo Académico de Epidemiologia Veterinaria, Facultad de Medicina Veterinaria, UANL, General Escobedo, N. L., CP 66050, Mexico
| | - Gustavo Hernández-Vidal
- Cuerpo Académico de Patobiología, Facultad de Medicina Veterinaria, UANL, General Escobedo, N. L., CP 66050, Mexico
| | - Heidi G Rodríguez-Ramírez
- Cuerpo Académico de Zoonosis y Enfermedades Emergentes, Facultad de Medicina Veterinaria, UANL, General Escobedo, N. L., CP 66050, Mexico
| | - Armando Trejo-Chávez
- Cuerpo Académico de Zoonosis y Enfermedades Emergentes, Facultad de Medicina Veterinaria, UANL, General Escobedo, N. L., CP 66050, Mexico
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Ahmed RG. Gestational dexamethasone alters fetal neuroendocrine axis. Toxicol Lett 2016; 258:46-54. [PMID: 27220267 DOI: 10.1016/j.toxlet.2016.05.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/18/2016] [Accepted: 05/20/2016] [Indexed: 12/17/2022]
Abstract
This study tested whether the maternal transport of dexamethasone (DEXA) may affect the development of the neuroendocrine system. DEXA (0.2mg/kg b.w., subcutaneous injection) was administered to pregnant rats from gestation day (GD) 1-20. In the DEXA-treated group, a decrease in maternal serum thyroxine (T4), triiodothyronine (T3), and increase in thyrotropin (TSH) levels (hypothyroid status) were observed at GDs 15 & 20 with respect to control group. The reverse pattern (hyperthyroid status) was observed in their fetuses at embryonic days (EDs) 15 & 20. Although the maternal body weight was diminished, the weight of the thyroid gland was increased at studied GDs as compared to the control group. The fetal growth retardation, hyperleptinemia, hyperinsulinism, and cytokines distortions (transforming growth factor-beta; TGF-β, tumor necrosis factor-alpha; TNF-α, and interferon-γ; IFN-γ) were noticed at examined EDs if compared to the control group. Alternatively, the maternofetal thyroid dysfunctions due to the maternal DEXA administration attenuated the levels of fetal cerebral norepinephrine (NE) and epinephrine (E), and elevated the levels of dopamine (DA) and 5-hydroxytryptamine (5-HT) at considered days. These alterations were age-dependent and might damage the nerve transmission. Finally, maternal DEXA might act as neuroendocrine disruptor causing dyshormonogenesis and fetal cerebral dysfunction.
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Affiliation(s)
- R G Ahmed
- Division of Anatomy and Embryology, Zoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt.
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