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Limanaqi F, Zecchini S, Saulle I, Strizzi S, Vanetti C, Garziano M, Cappelletti G, Parolin D, Caccia S, Trabattoni D, Fenizia C, Clerici M, Biasin M. Alpha-synuclein dynamics bridge Type-I Interferon response and SARS-CoV-2 replication in peripheral cells. Biol Res 2024; 57:2. [PMID: 38191441 PMCID: PMC10775536 DOI: 10.1186/s40659-023-00482-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 12/15/2023] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND Increasing evidence suggests a double-faceted role of alpha-synuclein (α-syn) following infection by a variety of viruses, including SARS-CoV-2. Although α-syn accumulation is known to contribute to cell toxicity and the development and/or exacerbation of neuropathological manifestations, it is also a key to sustaining anti-viral innate immunity. Consistently with α-syn aggregation as a hallmark of Parkinson's disease, most studies investigating the biological function of α-syn focused on neural cells, while reports on the role of α-syn in periphery are limited, especially in SARS-CoV-2 infection. RESULTS Results herein obtained by real time qPCR, immunofluorescence and western blot indicate that α-syn upregulation in peripheral cells occurs as a Type-I Interferon (IFN)-related response against SARS-CoV-2 infection. Noteworthy, this effect mostly involves α-syn multimers, and the dynamic α-syn multimer:monomer ratio. Administration of excess α-syn monomers promoted SARS-CoV-2 replication along with downregulation of IFN-Stimulated Genes (ISGs) in epithelial lung cells, which was associated with reduced α-syn multimers and α-syn multimer:monomer ratio. These effects were prevented by combined administration of IFN-β, which hindered virus replication and upregulated ISGs, meanwhile increasing both α-syn multimers and α-syn multimer:monomer ratio in the absence of cell toxicity. Finally, in endothelial cells displaying abortive SARS-CoV-2 replication, α-syn multimers, and multimer:monomer ratio were not reduced following exposure to the virus and exogenous α-syn, suggesting that only productive viral infection impairs α-syn multimerization and multimer:monomer equilibrium. CONCLUSIONS Our study provides novel insights into the biology of α-syn, showing that its dynamic conformations are implicated in the innate immune response against SARS-CoV-2 infection in peripheral cells. In particular, our results suggest that promotion of non-toxic α-syn multimers likely occurs as a Type-I IFN-related biological response which partakes in the suppression of viral replication. Further studies are needed to replicate our findings in neuronal cells as well as animal models, and to ascertain the nature of such α-syn conformations.
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Affiliation(s)
- Fiona Limanaqi
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy.
| | - Silvia Zecchini
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
| | - Irma Saulle
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Via Francesco Sforza, Milan, Italy
| | - Sergio Strizzi
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
| | - Claudia Vanetti
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
| | - Micaela Garziano
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Via Francesco Sforza, Milan, Italy
| | - Gioia Cappelletti
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
| | - Debora Parolin
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
| | - Sonia Caccia
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
| | - Daria Trabattoni
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
| | - Claudio Fenizia
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Via Francesco Sforza, Milan, Italy
| | - Mario Clerici
- Department of Pathophysiology and Transplantation, University of Milan, Via Francesco Sforza, Milan, Italy
- IRCCS Fondazione Don Carlo Gnocchi, 20148, Milan, Italy
| | - Mara Biasin
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, Milan, Italy.
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Shu Y, Peng F, Zhao B, Liu C, Li Q, Li H, Wang Y, Jiang Y, Lu T, Wang Q, Sun J, Feng H, Lu Z, Liu X, Wang J, Qiu W. Transfer of patient's peripheral blood mononuclear cells (PBMCs) disrupts blood-brain barrier and induces anti-NMDAR encephalitis: a study of novel humanized PBMC mouse model. J Neuroinflammation 2023; 20:164. [PMID: 37443034 DOI: 10.1186/s12974-023-02844-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is a severe autoimmune neuropsychiatric disease. Brain access of anti-NMDAR autoantibody through the blood-brain barrier (BBB) is essential for pathogenesis. Most previous animal models limit the investigation of etiologies of BBB damage in patients. METHODS In this study, we established a novel humanized mouse model of anti-NMDAR encephalitis by intraperitoneal injection of patients' peripheral blood mononuclear cells (PBMCs) into BALB/c Rag2-/-Il2rg-/-SirpαNODFlk2-/- mice. RESULTS We found that engraftment of patients' PBMCs not only produced potent anti-GluN1 autoantibodies, but also disrupted BBB integrity to allow brain access of autoantibodies, resulting in a hyperactive locomotor phenotype, anxiety- and depressive-like behaviors, cognitive deficits, as well as functional changes in corresponding brain regions. Transcriptome analysis suggested an exaggerated immune response and impaired neurotransmission in the mouse model and highlighted Il-1β as a hub gene implicated in pathological changes. We further demonstrated that Il-1β was produced by endothelial cells and disrupted BBB by repressing tight junction proteins. Treatment with Anakinra, an Il-1 receptor antagonist, ameliorated BBB damage and neuropsychiatric behaviors. CONCLUSIONS Our study provided a novel and clinically more relevant humanized mouse model of anti-NMDAR encephalitis and revealed an intrinsic pathogenic property of the patient's lymphocytes.
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Affiliation(s)
- Yaqing Shu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Fuhua Peng
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Bingchu Zhao
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, 430071, China
| | - Chunxin Liu
- Department of Emergency, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Qihui Li
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Huilu Li
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Yuge Wang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Yanjun Jiang
- Department of Anaesthesia and Intensive Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Hong Kong SAR, China
- Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Tingting Lu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Qin Wang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Jian Sun
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original BacteriaCollege of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Huiyu Feng
- Department of Neurology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zhengqi Lu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Xiaodong Liu
- Department of Anaesthesia and Intensive Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Jie Wang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, 430071, China.
- Institute of Neuroscience and Brain Diseases; Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Wei Qiu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China.
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Wang XH, Shao K, An HM, Zhai XH, Zhou PJ, Chen B. The pharmacokinetics of tacrolimus in peripheral blood mononuclear cells and limited sampling strategy for estimation of exposure in renal transplant recipients. Eur J Clin Pharmacol 2022; 78:1261-1272. [PMID: 35536394 DOI: 10.1007/s00228-021-03215-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 09/05/2021] [Indexed: 11/03/2022]
Abstract
PURPOSE Intracellular exposure of tacrolimus (TAC) may be a better marker of therapeutic effect than whole blood exposure. We aimed to evaluate the influence of genetic polymorphism on the pharmacokinetics of TAC in peripheral blood mononuclear cells (PBMCs) and develop limited sampling strategy (LSS) models to estimate the area under the curve (AUC0-12h) in the PBMC of Chinese renal transplant patients. METHODS Ten blood samples of each of the 23 renal transplant patients were collected 0-12h after 14 (10-18) days of TAC administration. PBMCs were separated and quantified. The TAC level in PBMCs was determined, and pharmacokinetic parameters were estimated by noncompartmental study. The AUC0-12h of TAC in whole blood was estimated by Bayesian approach based on a population pharmacokinetic model established in 65 renal transplant patients. The influence of CYP3A5 and ABCB1 genotypes on exposure was estimated. By applying multiple stepwise linear regression analysis, LSS equations for TAC AUC0-12h in the PMBC of renal transplant patients were established, and the bias and precision of various equations were identified and compared. RESULTS We found a modest correlation between TAC exposure in whole blood and PBMC (r2 = 0.5260). Patients with the CYP3A5 6986GG genotype had a higher AUC0-12h in PBMCs than those with the 6986 AA or GA genotype (P = 0.026). Conversely, patients with the ABCB1 3435TT genotype had a higher AUC0-12h in PBMC than those with the 3435 CC and CT genotypes (P = 0.046). LSS models with 1-4 blood time points were established (r2 = 0.570-0.989). The best model for predicting TAC AUC0-12h was C2-C4-C6-C10 (r2 = 0.989). The model with C0.5-C6 (r2 = 0.849) can be used for outpatients who need monitoring to be performed in a short period. CONCLUSIONS The CYP3A5 and ABCB1 genotypes impact TAC exposure in PBMCs, which may further alter the effects of TAC. The LSS model consisting of 2-4 time points is an effective approach for estimating full TAC AUC0-12h in Chinese renal transplant patients. This approach may provide convenience and the possibility for clinical monitoring of TAC intracellular exposure.
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Affiliation(s)
- Xi-Han Wang
- Department of Pharmacy, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Kun Shao
- Center for Organ Transplantation, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, People's Republic of China
| | - Hui-Min An
- Center for Organ Transplantation, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, People's Republic of China
| | - Xiao-Hui Zhai
- Department of Pharmacy, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Pei-Jun Zhou
- Center for Organ Transplantation, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, People's Republic of China.
| | - Bing Chen
- Department of Pharmacy, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.
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Kraus G, Weigelt M, Reinhardt S, Petzold A, Dahl A, Bonifacio E. Reproducibility of 10x Genomics single cell RNA sequencing method in the immune cell environment. J Immunol Methods 2022; 502:113227. [PMID: 35031279 DOI: 10.1016/j.jim.2022.113227] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/04/2021] [Accepted: 01/10/2022] [Indexed: 10/19/2022]
Abstract
10x Genomics is a highly accessible single cell RNA sequencing platform that allows for simultaneous gene expression analysis and identification of receptor chain combinations in cells of the adaptive immune system. Here, we asked whether the gene and receptor expression measurements in peripheral blood mononuclear cells (PBMC) are influenced by technical, cell freezing, FACS-processing, and day to day biological variation. No differentially expressed gene was observed between 1. triplicates aliquots taken from the same vial of frozen PBMC; 2. triplicate vials of frozen PBMC; and 3. triplicate aliquots taken from the same vial of frozen PBMC and processed separately for FACS staining and sorting of different PBMC populations. A small number of differentially expressed genes were observed between PBMC sampled, isolated and frozen from the same donor on different days, and these differences were more pronounced in the memory B cells than other cell populations. T cell receptors were recovered in all replicates when at least 5 cells per clonotype were identified. These findings show high reproducibility of 10x Genomics single cell RNA sequencing data in the immune cell context.
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Affiliation(s)
- Gloria Kraus
- Faculty of Medicine, DFG Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - Marc Weigelt
- Faculty of Medicine, DFG Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - Susanne Reinhardt
- DRESDEN-Concept Genome Center c/o Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Andreas Petzold
- DRESDEN-Concept Genome Center c/o Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Andreas Dahl
- DRESDEN-Concept Genome Center c/o Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Ezio Bonifacio
- Faculty of Medicine, DFG Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany,; German Center for Diabetes Research (DZD), Paul Langerhans Institute Dresden, Technische Universität Dresden, Dresden, Germany,; Institute of Diabetes and Obesity, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.
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GŁaczynska M, Machcinska M, Donskow-Lysoniewska K. Effects of Different Media on Human T Regulatory Cells Phenotype. In Vivo 2021; 35:283-289. [PMID: 33402475 DOI: 10.21873/invivo.12257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/10/2020] [Accepted: 11/17/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND/AIM Functional and quantitative Treg cell defects have been identified in a variety of autoimmune diseases. Therefore, Tregs are a major pharmaceutical target for these disorders. In the last decades, studies have been mainly focused on the identification and experimental understanding of the activity of Tregs and their mechanisms of action. MATERIALS AND METHODS This study describes how overnight storage of isolated peripheral blood mononuclear cells in different media (PBS pH 7.3, PBS pH 7.3 containing 0.5% BSA, RPMI 1640 and RPMI 1640 containing 10% FBS) affects the viability and expression of the commonly used markers for Tregs identification: CD25, CD127, CTLA-4, GITR, PD-1, FoxP3 and Helios. RESULTS Incorrectly selected storage conditions (temperature, time, medium) may affect the expression of surface and intracellular markers, thus, compromising the quality of the obtained results. CONCLUSION Appropriate protocols of cell isolation and storage are important for providing appropriate conditions for cell growth. This is crucial when analyzing small cell populations like Tregs.
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Affiliation(s)
- Magdalena GŁaczynska
- Laboratory of Parasitology, General Karol Kaczkowski Military Institute of Hygiene and Epidemiology, Warsaw, Poland
| | - Maja Machcinska
- Laboratory of Parasitology, General Karol Kaczkowski Military Institute of Hygiene and Epidemiology, Warsaw, Poland
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Kitamura K, Sasaki M, Matsumoto M, Shionoya H, Iida K. Protective effect of Bacteroides fragilis LPS on Escherichia coli LPS-induced inflammatory changes in human monocytic cells and in a rheumatoid arthritis mouse model. Immunol Lett 2021; 233:48-56. [PMID: 33741378 DOI: 10.1016/j.imlet.2021.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 03/14/2021] [Accepted: 03/15/2021] [Indexed: 11/26/2022]
Abstract
It has been reported that patients with rheumatoid arthritis (RA) have significantly less bacteria belonging to the Bacteroides group in their microbiota. We speculate that inhibition of cytokine production is impaired in patients with RA owing to their low levels of intestinal bacteria belonging to the Bacteroidetes group. Here we investigated the effect of Bacteroides fragilis lipopolysaccharide (B-LPS) on cytokine production in vitro and on the development of collagen antibody-induced arthritis (CAIA) in DBA/1 mice, an animal model of RA. in vitro culture experiments showed that Escherichia coli LPS (E-LPS)-induced cytokine production from THP-1 monocytic cells and peripheral blood mononuclear cells was significantly suppressed by B-LPS in a dose-dependent manner. A decrease in TNF-α and IL-1β production was also observed in LPS-tolerized macrophages induced by B-LPS at concentrations equal to and higher than that of E-LPS. Similar results were obtained when autoclaved feces were used to induce cytokine production instead of E-LPS. In in vivo experiments using CAIA models, B-LPS had no adverse effects even when administered at 10 times the concentration of E-LPS, which elicits severe arthritis. In addition, simultaneous administration of high dose B-LPS with E-LPS or administration of B-LPS prior to E-LPS significantly suppressed arthritis development in CAIA model animals when compared with administration of E-LPS alone. These results suggest that increasing certain bacterial groups such as Bacteroides is an effective strategy for preventing arthritis development in patients with RA.
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Affiliation(s)
- Kaori Kitamura
- Department of Food and Nutritional Sciences, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan; Research Lab Section 5, Asama Chemical Co Ltd, 20-6 Kodenmacho, Chuo-ku, Tokyo, 103-0001, Japan
| | - Mizuho Sasaki
- Department of Food and Nutritional Sciences, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan
| | - Moe Matsumoto
- Department of Food and Nutritional Sciences, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan
| | - Hiroshi Shionoya
- Research Lab Section 5, Asama Chemical Co Ltd, 20-6 Kodenmacho, Chuo-ku, Tokyo, 103-0001, Japan
| | - Kaoruko Iida
- Department of Food and Nutritional Sciences, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan; Institute for Human Life Innovation, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan.
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Makau MC, Powell J, Prendergast J, Latré de Laté P, Morrison LJ, Fisch A, Gathura P, Kitala P, Connelley T, Toye P. Inverted CD4 +/CD8 + T cell ratio in Boran (Bos indicus) cattle. Vet Immunol Immunopathol 2020; 230:110126. [PMID: 33080530 PMCID: PMC7700890 DOI: 10.1016/j.vetimm.2020.110126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/29/2020] [Accepted: 10/03/2020] [Indexed: 10/26/2022]
Abstract
The CD4+/CD8+ ratio is used as a marker of the immune regulation of T cell balance. When the ratio in peripheral blood is less than 1, this is considered an indication of immune suppression in an individual. Previous work on bovine Peripheral Blood Mononuclear Cells (PBMC) has consistently reported a ratio ≥1 as seen in other mammalian hosts, i.e. higher circulating CD4+ cell numbers than CD8+ cell numbers. However, a consistent inverted CD4+/CD8+ ratio (<1) was observed in Boran cattle, an African Bos indicus breed. The T cell populations were characterized in Boran cattle (n = 52), revealing higher percentages of circulating CD8+ cells (31.9 % average) than CD4+ cells (19.1 % average), thus resulting in the inversion of the expected T cell homeostasis in these animals. The results show that this inversion is not an effect of age or relatedness of the cattle, rather, it was shared by almost all Boran cattle used in this study. Despite this inversion being a feature shared by both males and females, the female cattle had significantly higher CD4+/CD8+ ratios than the male Boran. This paper describes the characteristics of the T cell fractions in the study animals and compares the findings to those of other Boran cattle in Kenya, and four other cattle breeds representing African indicine, African taurine, Brazilian indicine and European taurine cattle. We demonstrate that the consistent observation of inverted CD4+/CD8+ cell ratio was restricted to the Boran.
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Affiliation(s)
- Maurine C Makau
- International Livestock Research Institute (ILRI) and Centre for Tropical Livestock Genetics and Health, P.O. Box 30709, Nairobi 00100, Kenya.
| | - Jessica Powell
- The Roslin Institute and Centre for Tropical Livestock Genetics and Health, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, United Kingdom
| | - James Prendergast
- The Roslin Institute and Centre for Tropical Livestock Genetics and Health, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, United Kingdom
| | - Perle Latré de Laté
- International Livestock Research Institute (ILRI) and Centre for Tropical Livestock Genetics and Health, P.O. Box 30709, Nairobi 00100, Kenya
| | - Liam J Morrison
- The Roslin Institute and Centre for Tropical Livestock Genetics and Health, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, United Kingdom
| | - Andressa Fisch
- Ribeirão Preto College of Nursing, University of Sao Paulo, Avenida dos Bandeirantes, 3900, 14040-902 Ribeirao Preto Brazil
| | - Peter Gathura
- The University of Nairobi, Department of Public Health, Pharmacology and Toxicology, P.O Box 30197-00100, Nairobi, Kenya
| | - Phillip Kitala
- The University of Nairobi, Department of Public Health, Pharmacology and Toxicology, P.O Box 30197-00100, Nairobi, Kenya
| | - Timothy Connelley
- The Roslin Institute and Centre for Tropical Livestock Genetics and Health, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, United Kingdom
| | - Philip Toye
- International Livestock Research Institute (ILRI) and Centre for Tropical Livestock Genetics and Health, P.O. Box 30709, Nairobi 00100, Kenya
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Rokonay R, Veres-Székely A, Szebeni B, Pap D, Lippai R, Béres NJ, Veres G, Szabó AJ, Vannay Á. Role of IL-24 in the mucosal remodeling of children with coeliac disease. J Transl Med 2020; 18:36. [PMID: 31973719 PMCID: PMC6977354 DOI: 10.1186/s12967-020-02221-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 01/10/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Recently, involvement of IL-19, IL-20 and IL-24 has been reported in inflammatory diseases associated with tissue remodeling. However, their impact on the pathomechanism of coeliac disease (CD) is still completely unknown. METHODS Expression of IL19, IL20 and IL24 was measured by real-time RT-PCR, protein amount of IL-24, α smooth muscle actin (α-SMA) and fibronectin (FN) was determined by Western-blot analysis in the duodenal biopsies of therapy naive children with CD and controls. Localization of IL-24 and IL-20RB was investigated by immunofluorescent staining in the duodenal mucosa. Effect of recombinant IL-1β, TNF-α, TGF-β and IL-17 treatment on the expression of IL19, IL20, IL24 and their receptors was investigated by real-time RT-PCR in small intestinal epithelial cells (FHs74Int), in primary duodenal myofibroblasts (pdMFs) and in peripheral blood mononuclear cells (PBMCs). Effect of IL-24 on H2O2 treated FHs74Int cells and on pdMFs was measured by MTT, LDH, Annexin V assays, real-time RT-PCR and by fluorescent microscopy. RESULTS We found increased level of IL-24 (3.3×, p < 0.05), α-SMA (2.4×, p < 0.05) and FN (2.3×, p < 0.05) in the duodenal mucosa and increased expression of IL19 (3.6×, p < 0.05) and IL24 (5.2×, p < 0.05) in the PBMCs of children with CD compared to that of controls. IL-1β was a strong inducer of IL24 expression of FHs74Int cells (9.9×, p < 0.05), pdMFs (552.9×, p < 0.05) or PBMCs (17.2×, p < 0.05), as well. IL-24 treatment reduced the number of apoptotic cells (0.5×, p < 0.05) and decreased the expression of inflammatory factors, including IL1A, IL6 and TNF of H2O2-treated FHs74Int cells. IL-24 decreased the proliferation (0.6×, p < 0.05) of PDGF-B treated pdMFs. Moreover, IL-24 treatment altered the morphology of pdMFs by influencing the size of the angles between stress fibers and the longitudinal axis of the cells (2.0×, p < 0.05) and the expression of cytoskeletal components, including ACTA2, ACTB, VIM, SNAI1 and SNAI2. CONCLUSION Our results suggest that IL-24 plays a significant role in the maintenance of duodenal mucosal integrity in CD.
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Affiliation(s)
- Réka Rokonay
- 1st Department of Paediatrics, Semmelweis University, 54 Bókay Street, Budapest, 1083, Hungary
| | - Apor Veres-Székely
- 1st Department of Paediatrics, Semmelweis University, 54 Bókay Street, Budapest, 1083, Hungary
| | - Beáta Szebeni
- MTA-SE Paediatrics and Nephrology Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Domonkos Pap
- MTA-SE Paediatrics and Nephrology Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Rita Lippai
- 1st Department of Paediatrics, Semmelweis University, 54 Bókay Street, Budapest, 1083, Hungary
| | - Nóra J Béres
- 1st Department of Paediatrics, Semmelweis University, 54 Bókay Street, Budapest, 1083, Hungary
| | - Gábor Veres
- Pediatric Institute-Clinic, University of Debrecen, Debrecen, Hungary
| | - Attila J Szabó
- 1st Department of Paediatrics, Semmelweis University, 54 Bókay Street, Budapest, 1083, Hungary.,MTA-SE Paediatrics and Nephrology Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Ádám Vannay
- 1st Department of Paediatrics, Semmelweis University, 54 Bókay Street, Budapest, 1083, Hungary. .,MTA-SE Paediatrics and Nephrology Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary.
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9
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Naz F, Dinda AK, Saxena R, Koul V. Biosafety of unmodified ultrafine gold particles (AuPs) upon interacting with human blood components before systemic use. Regul Toxicol Pharmacol 2019; 107:104405. [PMID: 31207267 DOI: 10.1016/j.yrtph.2019.104405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 06/05/2019] [Accepted: 06/13/2019] [Indexed: 11/20/2022]
Abstract
Ultrafine gold particles (AuPs) can be emerged as a good candidate in the field of drug delivery as well as in imaging applications. However, little attention has been paid to detailed study of nanoparticle's interaction with blood components before systemic use. An investigation into the interaction of ultrafine AuPs with blood components is must for its clinical application. In present study, the interaction of ultrafine sized AuPs (2 ± 0.5 nm, 5 ± 1 nm, and 10 ± 2 nm) with blood components and its immunogenic property (pro-inflammatory reaction) was investigated. All three sized AuPs did not cause any significant hemolysis. Plasma coagulation study showed significant increase in Prothrombin time (PT) with International Normalized Ratio (INR) value raised to 1.53 with 10 nm AuPs. Maximum prolongation of activated partial thromboplastin time (APTT) (3.2 s) was seen with 5 &10 nm sized AuPs. Maximum thrombin time (TT) prolongation was seen with 2 nm (18.3s) with the difference of 1.4 s as compared to control. Platelet aggregation was faster in case of 5 & 10 nm sized AuPs. All three sized AuPs exhibited in-vitro C3 complement activation whereas they did not stimulate significant proliferation of peripheral blood mononuclear cells (PBMC). These findings further validate the utility of ultrafine AuPs for in-vivo applications.
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10
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Sipka S, Brugós B, Czifra G, Griger Z, Balogh N, Tarr T, Papp G, Bíró T, Zeher M. Season Dependent Changes in the Expression of Protein Kinase C Isoenzymes in a Female Patient with Systemic Lupus Erythematosus. Pathol Oncol Res 2019; 25:801-805. [PMID: 30715676 PMCID: PMC6449297 DOI: 10.1007/s12253-019-00591-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 01/15/2019] [Indexed: 01/21/2023]
Abstract
We aimed to answer the question whether the decreased expression of protein kinase C (PKC) isoenzymes in the peripheral blood mononuclear cells (PBMC) of patients with systemic lupus erythematosus (SLE) is inherited or not. For this reason we examined the expression of PKC isoenzymes in a European white girl with acute SLE and in her healthy mother and father simultaneously in summer and winter during one year using western blotting and densitometry. We found that in the father the expression of PKC isoenzymes did not differ from that of eight healthy controls included women and men. However, in the "SLE-free" mother and in the patient arrived in July with acute symptoms of lupus, the expression of PKC isoenzymes showed a season dependent undulation in parallel. Namely, in summer the expression values were significantly lower, in winter they were significantly higher than those in the controls. Thus, the decreased expression of PKC isoenzymes in the PBMC of SLE patient is not a disease specific marker; it appears also in her lupus free mother. This phenomenon may be due to a season dependent female genetic background. However, the low PKC levels in summer can still decrease further the low production of IL-2 in T cells of lupus patients augmenting the existing AP-1 defects. This is the first report on the season and female dependent inherited changing of PKC expression in a European white patient with SLE and her mother. Further studies are needed to confirm these findings in other populations.
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Affiliation(s)
- Sándor Sipka
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Móricz Zs. str. 22, Debrecen, H-4032, Hungary.
| | - Boglárka Brugós
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Móricz Zs. str. 22, Debrecen, H-4032, Hungary
| | - Gabriella Czifra
- Department of Physiology, Faculty of Medicine, University of Debrecen, Nagyerdei blvd, 98, Debrecen, H-4032, Hungary
| | - Zoltán Griger
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Móricz Zs. str. 22, Debrecen, H-4032, Hungary
| | - Norbert Balogh
- Department of Physiology, Faculty of Medicine, University of Debrecen, Nagyerdei blvd, 98, Debrecen, H-4032, Hungary
| | - Tünde Tarr
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Móricz Zs. str. 22, Debrecen, H-4032, Hungary
| | - Gábor Papp
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Móricz Zs. str. 22, Debrecen, H-4032, Hungary
| | - Tamás Bíró
- Department of Physiology, Faculty of Medicine, University of Debrecen, Nagyerdei blvd, 98, Debrecen, H-4032, Hungary
| | - Margit Zeher
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Móricz Zs. str. 22, Debrecen, H-4032, Hungary
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11
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Abstract
The human obese subcutaneous adipose tissue (SAT) contributes to systemic and B cell intrinsic inflammation, reduced B cell responses, and increased secretion of autoimmune antibodies. Immune cells are recruited to the SAT by chemokines released by both adipocytes and infiltrating immune cells. We describe here the characterization of B lymphocytes from the SAT and blood (control) of obese females undergoing weight reduction surgeries (breast reduction or panniculectomy). We show how to isolate the immune cells from the blood and SAT, how to characterize B cells and their subsets, and how to measure markers of activation and/or transcription factors in SAT-derived B cells and B cell subsets. We also show how to evaluate other immune cell types infiltrating the SAT, including T cells, NK cells, monocyte/macrophages, in order to measure relative proportions of these cell types as compared to the blood.
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Affiliation(s)
- Alain Diaz
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Maria Romero
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Daniela Frasca
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Bonnie B Blomberg
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, USA.
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA.
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12
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Chase KA, Feiner B, Rosen C, Gavin DP, Sharma RP. Characterization of peripheral cannabinoid receptor expression and clinical correlates in schizophrenia. Psychiatry Res 2016; 245:346-353. [PMID: 27591408 DOI: 10.1016/j.psychres.2016.08.055] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 08/16/2016] [Accepted: 08/19/2016] [Indexed: 01/13/2023]
Abstract
The relationship between cannabinoid receptor signaling and psychosis vulnerability requires further exploration. The endocannabinoid signaling system is extensive, with receptors exerting regulatory functions in both immune and central nervous systems. In the brain, cannabinoid receptors (CBR) directly modulate neurotransmitter systems. In the peripheral lymphocyte, CBRs mediate cytokine release, with dysregulated cytokine levels demonstrated in schizophrenia. mRNA levels of CBRs were measured in human peripheral blood mononuclear cells (PBMCs) obtained from 70 participants (35 non-clinical controls, 35 participants with schizophrenia), who were recruited for the absence of marijuana use/abuse by self-report. Changes in mRNA expression were measured using qRT-PCR. Clinical measurements collected included the MATRICS Cognitive Battery and the Positive and Negative Syndrome Scale. Levels of CB1R and CB2R mRNA in PBMCs were significantly higher in participants with schizophrenia compared to the non-clinical controls. Additionally, CB1R and CB2R mRNA levels correlated with impairments in cognitive processing and clinical symptom severity in multiple domains. These results continue to support dysregulation of particular aspects of the endocannabinoid signaling system in participants with schizophrenia selected for the self-reported absence of marijuana abuse/dependence.
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Affiliation(s)
- Kayla A Chase
- The Psychiatric Institute, University of Illinois at Chicago, 1601 W. Taylor St, Chicago, IL 60612, USA; University of California, Department of Psychiatry, 9500 Gilman Drive, MC 8505, La Jolla, San Diego, CA 92037, USA
| | - Benjamin Feiner
- The Psychiatric Institute, University of Illinois at Chicago, 1601 W. Taylor St, Chicago, IL 60612, USA
| | - Cherise Rosen
- The Psychiatric Institute, University of Illinois at Chicago, 1601 W. Taylor St, Chicago, IL 60612, USA
| | - David P Gavin
- The Psychiatric Institute, University of Illinois at Chicago, 1601 W. Taylor St, Chicago, IL 60612, USA; Jesse Brown Veterans Affairs Medical Center, 820 South Damen Avenue (M/C 151), Chicago, IL 60612, USA
| | - Rajiv P Sharma
- The Psychiatric Institute, University of Illinois at Chicago, 1601 W. Taylor St, Chicago, IL 60612, USA; Jesse Brown Veterans Affairs Medical Center, 820 South Damen Avenue (M/C 151), Chicago, IL 60612, USA.
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13
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Li J, Zhang SX, Wang W, Cheng K, Guo H, Rao CL, Yang DY, He Y, Zou DZ, Han Y, Zhao LB, Li PF, Xie P. Potential antidepressant and resilience mechanism revealed by metabolomic study on peripheral blood mononuclear cells of stress resilient rats. Behav Brain Res 2016; 320:12-20. [PMID: 27880890 DOI: 10.1016/j.bbr.2016.11.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/12/2016] [Accepted: 11/18/2016] [Indexed: 01/15/2023]
Abstract
Resilience is an active coping response to stress, which plays a very important role in major depressive disorder study. The molecular mechanisms underlying such resilience are poorly understood. Peripheral blood mononuclear cells (PBMCs) were promising objects in unveiling the underlying pathogenesis of resilience. Hereby we carried out successive study on PBMCs metabolomics in resilient rats of chronic unpredictable mild stress (CUMS) model. A gas chromatography-mass spectrometry (GC-MS) metabolomic approach coupled with principal component analysis (PCA) and orthogonal partial least-squares discriminant analysis (OPLS-DA) was used to detect differential metabolites in PBMCs of resilient rats. Ingenuity Pathways Analysis (IPA) was applied for pathway analysis. A set of differential metabolites including Malic acid, Ornithine, l-Lysine, Stigmasterol, Oleic acid, γ-Tocopherol, Adenosine and N-acetyl-d-glucosamine were significantly altered in resilient rats, meanwhile promoting antidepressant research. As revealed by IPA that aberrant energy metabolism, HIFα signaling, neurotransmitter, O-GlcNAcylation and cAMP signaling cascade in peripheral might be evolved in the pathogenesis of coping mechanism. The GC-MS based metabolomics may contribute to better understanding of resilience, as well as shedding light on antidepressant discovery.
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Affiliation(s)
- Juan Li
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, 400016 Chongqing, China
| | - Shu-Xiao Zhang
- Chongqing Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, 400016 Chongqing, China; Key Laboratory of Laboratory Medical Diagnostics of Education, Department of Laboratory Medicine, Chongqing Medical University, 400016 Chongqing, China
| | - Wei Wang
- Chongqing Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, 400016 Chongqing, China; Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402460, China
| | - Ke Cheng
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, 400016 Chongqing, China
| | - Hua Guo
- Chongqing Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, 400016 Chongqing, China; Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402460, China
| | - Cheng-Long Rao
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402460, China
| | - De-Yu Yang
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402460, China
| | - Yong He
- Chongqing Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, 400016 Chongqing, China; Key Laboratory of Laboratory Medical Diagnostics of Education, Department of Laboratory Medicine, Chongqing Medical University, 400016 Chongqing, China
| | - De-Zhi Zou
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yu Han
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Li-Bo Zhao
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402460, China
| | - Peng-Fei Li
- Chongqing Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, 400016 Chongqing, China; School of Public Health and Management, Chongqing Medical University, Chongqing 400016, China
| | - Peng Xie
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, 400016 Chongqing, China.
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14
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Shi M, Chen MS, Sekar K, Tan CK, Ooi LL, Hui KM. A blood-based three-gene signature for the non-invasive detection of early human hepatocellular carcinoma. Eur J Cancer 2013; 50:928-36. [PMID: 24332572 DOI: 10.1016/j.ejca.2013.11.026] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 11/21/2013] [Accepted: 11/24/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND Identifying early stages of disease in high-risk individuals for the development of hepatocellular carcinoma (HCC) would greatly improve the clinical outcomes of these individuals. The aim of this study was to develop a blood-based gene set that could identify early-stage HCC. METHODS Comprehensive gene expression profiling of purified RNA of peripheral blood mononuclear cells (PBMC) was performed using microarrays. Gene signatures were developed through bioinformatics-driven approaches and their diagnostic value was evaluated by custom-designed, quantitative, multiplex polymerase chain reaction (PCR) assays. RESULTS Bioinformatics-driven analysis of microarray data derived from PBMC RNA samples of patients with HCC (N=10), pancreatic cancer (N=3), gastric cancer (N=3) and 10 normal individuals identified six genes that were differentially expressed in HCC. Subsequent multiplex-PCR validation and univariate analyses performed with an independent cohort of 114 HCC patients, 48 normal individuals and 14 patients with chronic hepatitis B (CHB) validated that three genes, namely Chemokine (C-X-C motif) receptor 2 (CXCR2), C-C chemokine receptor type 2 (CCR2) and E1A-Binding Protein P400 (EP400), were able to identify HCC individually with accuracies of 82.4%, 78.4% and 65%, respectively. In combination, these three genes gave an area under the curve (AUC) of 0.96 (95% confidence interval (CI), 0.93-0.99) using multivariate logistic regression and yielded a sensitivity of 93% and a specificity of 89%. When these three genes were used in combination with alpha-fetoprotein (AFP) to predict HCC, the accuracy of predicting HCC improved slightly with an AUC of 0.99 (95% CI, 0.98-1.0), sensitivity of 93% and specificity of 95%. CONCLUSIONS CXCR2, CCR2 and EP400 can provide a promising non-invasive multiplex PCR diagnostic assay to monitor high-risk individuals for the development of HCC.
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Affiliation(s)
- Ming Shi
- Department of Hepatobiliary Oncology, Sun Yat-Sen University Cancer Center, Guangzhou 510060, PR China
| | - Min-Shan Chen
- Department of Hepatobiliary Oncology, Sun Yat-Sen University Cancer Center, Guangzhou 510060, PR China
| | - Karthik Sekar
- Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore 169610, Singapore
| | - Chee-Kiat Tan
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore 169608, Singapore
| | - London Lucien Ooi
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore
| | - Kam M Hui
- Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore 169610, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; Institute of Molecular and Cell Biology, A(∗)STAR, Biopolis Drive Proteos, Singapore 138673, Singapore; Program in Cancer and Stem Cell Biology, Duke-NUS Graduate Medical School, Singapore 169857, Singapore.
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15
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Gupta MK, Halley C, Duan ZH, Lappe J, Viterna J, Jana S, Augoff K, Mohan ML, Vasudevan NT, Na J, Sossey-Alaoui K, Liu X, Liu CG, Tang WHW, Naga Prasad SV. miRNA-548c: a specific signature in circulating PBMCs from dilated cardiomyopathy patients. J Mol Cell Cardiol 2013; 62:131-41. [PMID: 23735785 DOI: 10.1016/j.yjmcc.2013.05.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 04/29/2013] [Accepted: 05/19/2013] [Indexed: 12/19/2022]
Abstract
High fidelity genome-wide expression analysis has strengthened the idea that microRNA (miRNA) signatures in peripheral blood mononuclear cells (PBMCs) can be potentially used to predict the pathology when anatomical samples are inaccessible like the heart. PBMCs from 48 non-failing controls and 44 patients with relatively stable chronic heart failure (ejection fraction of ≤ 40%) associated with dilated cardiomyopathy (DCM) were used for miRNA analysis. Genome-wide miRNA-microarray on PBMCs from chronic heart failure patients identified miRNA signature uniquely characterized by the downregulation of miRNA-548 family members. We have also independently validated downregulation of miRNA-548 family members (miRNA-548c & 548i) using real time-PCR in a large cohort of independent patient samples. Independent in silico Ingenuity Pathway Analysis (IPA) of miRNA-548 targets shows unique enrichment of signaling molecules and pathways associated with cardiovascular disease and hypertrophy. Consistent with specificity of miRNA changes with pathology, PBMCs from breast cancer patients showed no alterations in miRNA-548c expression compared to healthy controls. These studies suggest that miRNA-548 family signature in PBMCs can therefore be used to detect early heart failure. Our studies show that cognate networking of predicted miRNA-548 targets in heart failure can be used as a powerful ancillary tool to predict the ongoing pathology.
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Affiliation(s)
- Manveen K Gupta
- Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, USA
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