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Kim A, Zhang Z, Legros C, Lu Z, de Smith A, Moore JE, Mancuso N, Gazal S. Inferring causal cell types of human diseases and risk variants from candidate regulatory elements. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.05.17.24307556. [PMID: 38798383 PMCID: PMC11118635 DOI: 10.1101/2024.05.17.24307556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The heritability of human diseases is extremely enriched in candidate regulatory elements (cRE) from disease-relevant cell types. Critical next steps are to infer which and how many cell types are truly causal for a disease (after accounting for co-regulation across cell types), and to understand how individual variants impact disease risk through single or multiple causal cell types. Here, we propose CT-FM and CT-FM-SNP, two methods that leverage cell-type-specific cREs to fine-map causal cell types for a trait and for its candidate causal variants, respectively. We applied CT-FM to 63 GWAS summary statistics (average N = 417K) using nearly one thousand cRE annotations, primarily coming from ENCODE4. CT-FM inferred 81 causal cell types with corresponding SNP-annotations explaining a high fraction of trait SNP-heritability (~2/3 of the SNP-heritability explained by existing cREs), identified 16 traits with multiple causal cell types, highlighted cell-disease relationships consistent with known biology, and uncovered previously unexplored cellular mechanisms in psychiatric and immune-related diseases. Finally, we applied CT-FM-SNP to 39 UK Biobank traits and predicted high confidence causal cell types for 2,798 candidate causal non-coding SNPs. Our results suggest that most SNPs impact a phenotype through a single cell type, and that pleiotropic SNPs target different cell types depending on the phenotype context. Altogether, CT-FM and CT-FM-SNP shed light on how genetic variants act collectively and individually at the cellular level to impact disease risk.
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Affiliation(s)
- Artem Kim
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Zixuan Zhang
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Come Legros
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Zeyun Lu
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Adam de Smith
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jill E Moore
- Department of Genomics and Computational Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Nicholas Mancuso
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Quantitative and Computational Biology, University of Southern California, Los Angeles, CA, USA
| | - Steven Gazal
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Quantitative and Computational Biology, University of Southern California, Los Angeles, CA, USA
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Hu J, Huang Y, Jia R, Wang X, Wang Y. Absolute monocyte counts could predict disease activity and secondary loss of response of patients with Crohn's disease treated with anti-TNF-α drug. PLoS One 2024; 19:e0301797. [PMID: 38598519 PMCID: PMC11006187 DOI: 10.1371/journal.pone.0301797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 03/23/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND Assessing Crohn's disease (CD) activity is critical for monitoring disease progression. In CD, monocytes could release TNF-α. Thus, it is extremely important to study its role in the disease activity and loss of response to anti-TNF-α biologics. METHODS In this study, we collected CD patients treated with biologics from January 2017 to May 2022. Indicators associated with disease activity were evaluated by Spearman correlation analysis and Mann-Whitney U test. Specifically, logistic analyses were used to explore the predictors of primary nonresponse (PNR) and secondary loss of response (SLOR) within 1 year of anti-TNF-α agents. In addition, a nomogram was developed for therapeutic effect prediction. RESULTS 283 patients with CD were identified. Disease activity group, defined as CDAI equal to or greater than 150, had significant elevated absolute monocyte counts than disease remission group based on CDAI score (p = 0.019, Z = -2.354). Logistic analyses showed that absolute monocyte counts could be an independent predictor of 1-year SLOR of anti-TNF-α agents in CD patients (p = 0.013). A nomogram established based on gender, absolute monocyte counts, and hemoglobin could predict SLOR within 1 year of anti-TNF-α agents reliably. CONCLUSION The results of this study support the utility of absolute monocyte counts detecting disease activity and anti-TNF-α therapy effect in patients with CD.
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Affiliation(s)
- Jia Hu
- Department of Gastroenterology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Research Center of Digestive Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yin Huang
- Department of Gastroenterology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Research Center of Digestive Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ruonan Jia
- Department of Gastroenterology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Research Center of Digestive Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuehong Wang
- Department of Gastroenterology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Research Center of Digestive Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yongjun Wang
- Department of Gastroenterology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Research Center of Digestive Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Dong J, Duan RS, Zhang P. Causal relationship between the immune phenotype of monocytes and myasthenia gravis: A Mendelian randomization study. Heliyon 2024; 10:e26741. [PMID: 38449651 PMCID: PMC10915380 DOI: 10.1016/j.heliyon.2024.e26741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/30/2024] [Accepted: 02/19/2024] [Indexed: 03/08/2024] Open
Abstract
Background Monocytes play an essential role in developing autoimmune diseases; however, their association with myasthenia gravis (MG) development is unclear. Methods We performed a two-sample Mendelian randomization analysis to assess the causal relationship between monocyte-associated traits and MG, reviewing summary statistics of genome-wide association studies (GWAS). Results Using the inverse variance weighted method, the following were found to be causally associated with MG: HLA-DR on monocytes (OR, 1.363; 95% CI, 1.158-1.605; P = 2E-04), HLA-DR on CD14+ monocytes (OR, 1.324; 95% CI, 1.183-1.482; P = 1.08E-06), HLA-DR on CD14+CD16- monocytes (OR, 1.313; 95% CI, 1.177-1.465; P = 1.07E-06), CD40 on monocytes (OR, 1.135; 95% CI, 1.012-1.272; P < 0.05), CD40 on CD14+CD16- monocytes (OR, 1.142; 95% CI, 1.015-1.285; P < 0.05), CD40 on CD14+CD16+ monocytes (OR, 1.142; 95% CI, 1.021-1.278; P < 0.05), CD64 on CD14+CD16+ monocytes (OR, 1.286; 95% CI, 1.019-1.623; P < 0.05). Conclusions The present study suggests a causal relationship between the upregulation of CD40, HLA-DR, and CD64 on monocytes and the development of MG. Altered monocyte function may potentially be a risk factor for MG and a therapeutic target.
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Affiliation(s)
- Jing Dong
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong Province, China
| | - Rui-sheng Duan
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong Province, China
- Shandong Institute of Neuroimmunology, Jinan, Shandong Province, China
- Shandong Provincial Medicine and Health Key Laboratory of Neuroimmunology, Shandong Province, China
- Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, Shandong Province, China
| | - Peng Zhang
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong Province, China
- Shandong Institute of Neuroimmunology, Jinan, Shandong Province, China
- Shandong Provincial Medicine and Health Key Laboratory of Neuroimmunology, Shandong Province, China
- Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, Shandong Province, China
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Diao N, Liu X, Lin M, Yang Q, Li B, Tang J, Ding N, Gao X, Chao K. Exclusive Enteral Nutrition Orchestrates Immunological Balances as Early as Week 4 in Adult Patients of Crohn's Disease: A Pilot, Open-Lable Study. Nutrients 2023; 15:5091. [PMID: 38140350 PMCID: PMC10745958 DOI: 10.3390/nu15245091] [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: 10/14/2023] [Revised: 11/24/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND AND AIMS The efficacy and underlying mechanisms of exclusive enteral nutrition (EEN) in adult patients with Crohn's disease (CD) remain controversial. This study aimed to evaluate the role of EEN in adult patients with CD and to explore the mechanisms from the perspective of immunoregulation. METHODS This is a prospective, open-label pilot study. Active patients with CD were enrolled and prescribed an amino-acid-rich elemental diet for 12 weeks. Dynamic changes in immune cells, including neutrophils, monocytes, T cells and B cells, were detected by flow cytometry. Plasma cytokines were evaluated by ELISA. RESULTS Twenty adult patients with CD were enrolled. Among them, 1 discontinued treatment due to poor compliance, and 19 patients were included for final analysis. Clinical remission was achieved in 47.37% (9/19), 63.16% (12/19), and 73.68% (14/19) patients at weeks 4, 8, and 12, respectively. Endoscopic remission and transmural healing were achieved in 52.63% (10/19) and 15.79% (3/19) patients at week 12. Notably, there was no significant difference in clinical remission between week 4 and week 8 (p = 0.33) or week 12 (p = 0.09). Furthermore, we observed a rapid reconstitution of immunologic homeostasis as early as week 4. At week 4, both the frequency and activation of neutrophils and monocytes were decreased after EEN therapy. Significant decreases in Th17 cells and naïve B cells, increases in memory B cells, and regulatory B cells were also detected. These changes remained stable at weeks 8 and 12. CONCLUSIONS EEN with an amino-acid-rich elemental diet orchestrated immunological balances and induces clinical remission in adult CD patients as early as week 4, suggesting a 4-week EEN therapy may be feasible and practicable in clinical practice.
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Affiliation(s)
- Na Diao
- Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; (N.D.); (X.L.); (M.L.); (Q.Y.); (B.L.); (J.T.); (N.D.)
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Xinyu Liu
- Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; (N.D.); (X.L.); (M.L.); (Q.Y.); (B.L.); (J.T.); (N.D.)
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Minzhi Lin
- Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; (N.D.); (X.L.); (M.L.); (Q.Y.); (B.L.); (J.T.); (N.D.)
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Qingfan Yang
- Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; (N.D.); (X.L.); (M.L.); (Q.Y.); (B.L.); (J.T.); (N.D.)
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Bingyang Li
- Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; (N.D.); (X.L.); (M.L.); (Q.Y.); (B.L.); (J.T.); (N.D.)
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Jian Tang
- Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; (N.D.); (X.L.); (M.L.); (Q.Y.); (B.L.); (J.T.); (N.D.)
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Ni Ding
- Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; (N.D.); (X.L.); (M.L.); (Q.Y.); (B.L.); (J.T.); (N.D.)
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Xiang Gao
- Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; (N.D.); (X.L.); (M.L.); (Q.Y.); (B.L.); (J.T.); (N.D.)
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Kang Chao
- Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; (N.D.); (X.L.); (M.L.); (Q.Y.); (B.L.); (J.T.); (N.D.)
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
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Gao L, Zhan Y, Hu X, Liao S. Platelet-lymphocyte ratio and lymphocyte-monocyte ratio in inflammatory bowel disease and disease activity: A systematic review and meta-analysis. Scott Med J 2023; 68:101-109. [PMID: 37489108 DOI: 10.1177/00369330231188962] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
OBJECTIVE This review aimed to examine if the platelet-lymphocyte ratio and lymphocyte-monocyte ratio can be useful in determining disease activity in patients with inflammatory bowel disease. METHODS PubMed, CENTRAL, Scopus, Embase, and Web of Science were searched for studies published up to 9 January 2023. Platelet-lymphocyte ratio and lymphocyte-monocyte ratio values from active and remission inflammatory bowel disease cases were compared to generate a mean difference (MD). RESULTS Nine studies were included. Meta-analysis showed that inflammatory bowel disease patients with active disease had significantly higher values of platelet-lymphocyte ratio as compared to those in remission (MD: 63.46 95% CI: 35.74, 91.17, I2 = 89%). The values of platelet-lymphocyte ratio were significantly higher in both active ulcerative colitis and Crohn's disease patients. Meta-analysis also showed that lymphocyte-monocyte ratio values were significantly lower in active inflammatory bowel disease patients as compared to those under remission (MD: -1.28 95% CI: -1.42, -1.14, I2 = 4%). Lymphocyte-monocyte ratio values were significantly lower in both ulcerative colitis and Crohn's disease patients with active disease. CONCLUSION Platelet-lymphocyte ratio and lymphocyte-monocyte ratio can be useful blood-based markers in differentiating active disease in inflammatory bowel disease patients. Active cases of ulcerative colitis and Crohn's disease have high platelet-lymphocyte ratio and low lymphocyte-monocyte ratio as compared to those in remission. Further studies with a larger sample size are needed to strengthen conclusions.
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Affiliation(s)
- Lanqin Gao
- Department of Blood Transfusion, Shaoxing Central Hospital, Shaoxing City, China
| | - Yazhen Zhan
- Department of Gastroenterology, Shaoxing Central Hospital, Shaoxing City, China
| | - Xingping Hu
- Department of Gastroenterology, Shaoxing Central Hospital, Shaoxing City, China
| | - Shuli Liao
- Department of Gastroenterology, Shaoxing Central Hospital, Shaoxing City, China
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Zhang X, Ramos-Rivers C, Prathapan K, Wang X, Tang G, Kim S, Binion DG. Peripheral Blood Monocytosis Is Associated With Long-Term Disease Severity in Pediatric-Onset Inflammatory Bowel Disease. J Pediatr Gastroenterol Nutr 2023; 76:756-762. [PMID: 36827967 DOI: 10.1097/mpg.0000000000003755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
OBJECTIVES Peripheral blood monocytosis (PBM) is a marker of increased disease severity in adults with inflammatory bowel diseases (IBDs). We sought to determine whether PBM serves as a prognostic biomarker in patients with pediatric-onset IBD for a more aggressive long-term disease course when followed into adulthood. METHODS Patients with pediatric-onset inflammatory bowel disease were identified within an adult tertiary care center, within a consented, prospectively collected natural history disease registry, to compare clinical outcomes between patients with and without PBM from the years 2009 to 2019. Patients demonstrating elevation in PBM at any time defined membership and long-term clinical trajectories were compared with pediatric-onset patients without PBM. RESULTS A total of 581 patients with IBD, diagnosed by 18 years of age, were identified for inclusion, of which 440 patients were diagnosed with Crohn disease and 141 with ulcerative colitis. Monocytosis was detected by complete blood cell counts in 40.1% of patients. PBM was associated with steroid and biologic exposure, number of IBD-related surgeries, and increased health care utilization. Multivariate logistic regression analyses, accounting for elevation of inflammatory markers and other values associated with acute disease activity as well as steroid use, showed persistently increased odds of biologic exposure, emergency department visits, and hospitalizations, but not surgeries, after detection of monocytosis. CONCLUSIONS Within patients with pediatric-onset IBD, the sub-cohort with PBM had associated worse clinical outcomes and other markers of increased disease severity.
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Affiliation(s)
- Xiaoyi Zhang
- From the Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, Indiana University, Riley Hospital for Children, Indianapolis, IN
| | - Claudia Ramos-Rivers
- the Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center Children's Hospital, Pittsburgh, PA
| | | | | | - Gong Tang
- the Department of Biostatistics, School of Public Health, University of Pittsburgh, Pittsburgh, PA
| | - Sandra Kim
- the Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - David G Binion
- the Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center Children's Hospital, Pittsburgh, PA
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Bhandari R, Yang H, Kosarek NN, Smith AE, Garlick JA, Hinchcliff M, Whitfield ML, Pioli PA. Human dermal fibroblast-derived exosomes induce macrophage activation in systemic sclerosis. Rheumatology (Oxford) 2023; 62:SI114-SI124. [PMID: 35946522 PMCID: PMC9910573 DOI: 10.1093/rheumatology/keac453] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Prior work demonstrates that co-cultured macrophages and fibroblasts from patients with SSc engage in reciprocal activation. However, the mechanism by which these cell types communicate and contribute to fibrosis and inflammation in SSc is unknown. METHODS Fibroblasts were isolated from skin biopsies obtained from 7 SSc patients or 6 healthy age and gender-matched control subjects following written informed consent. Human donor-derived macrophages were cultured with exosomes isolated from control or SSc fibroblasts for an additional 48 h. Macrophages were immunophenotyped using flow cytometry, qRT-PCR and multiplex. For mutual activation studies, exosome-activated macrophages were co-cultured with SSc or healthy fibroblasts using Transwells. RESULTS Macrophages activated with dermal fibroblast-derived exosomes from SSc patients upregulated surface expression of CD163, CD206, MHC Class II and CD16 and secreted increased levels of IL-6, IL-10, IL-12p40 and TNF compared with macrophages incubated with healthy control fibroblasts (n = 7, P < 0.05). Exosome-stimulated macrophages and SSc fibroblasts engaged in reciprocal activation, as production of collagen and fibronectin was significantly increased in SSc fibroblasts receiving signals from SSc exosome-stimulated macrophages (n = 7, P < 0.05). CONCLUSION In this work, we demonstrate for the first time that human SSc dermal fibroblasts mediate macrophage activation through exosomes. Our findings suggest that macrophages and fibroblasts engage in cross-talk in SSc skin, resulting in mutual activation, inflammation, and extracellular matrix (ECM) deposition. Collectively, these studies implicate macrophages and fibroblasts as cooperative mediators of fibrosis in SSc and suggest therapeutic targeting of both cell types may provide maximal benefit in ameliorating disease in SSc patients.
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Affiliation(s)
| | - Heetaek Yang
- Department of Microbiology and Immunology
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | - Noelle N Kosarek
- Department of Microbiology and Immunology
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | - Avi E Smith
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA
| | - Jonathan A Garlick
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA
| | - Monique Hinchcliff
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Michael L Whitfield
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, NH
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Peripheral monocytes and soluble biomarkers in autoimmune encephalitis. J Autoimmun 2023; 135:103000. [PMID: 36753921 DOI: 10.1016/j.jaut.2023.103000] [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: 11/09/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVES Autoimmune encephalitis (AE) is an inflammatory disease of the central nervous system which can result in long-term seizures and cognitive dysfunction despite treatment with immunotherapy. The role of the innate immune system in AE is not well established. To investigate the contribution of innate immunity to AE and its long-term outcomes we evaluated peripheral monocytes and serum cytokines in the periphery of patients with AE. METHODS AND RESULTS We recruited 40 patients with previously diagnosed AE and 28 healthy volunteers to our cross-sectional observation study and evaluated their peripheral blood monocytes via flow cytometry and serum cytokines (CCL-2, CCL-17, G-CSF, GM-CSF, IFNγ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-10, IL-17, TNFα) via ELISA.Compared with controls the AE cohort had expansion of the 'pro-inflammatory' CD14+CD16+ monocyte sub-population (7.13% vs 5.46%, p < 0.01) with higher levels of serum IL-6 (2.34 pg/mL vs 0.54 pg/mL, p < 0.001). These changes were most significant in anti-LGI-1 antibody mediated AE, an AE subtype with poor long-term cognitive outcomes. CONCLUSION Expansion of the peripheral CD14+CD16+ monocyte population and increased serum IL-6 in AE is reflective of changes seen in other systemic inflammatory and neurodegenerative conditions. These changes may indicate a persistent pro-inflammatory state in AE and may contribute to poor long-term outcomes.
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Barnet M, Masle-Farquhar E, Singh M, Burnett DL. Blood and guts: peripheral immune correlates of immunotherapy-induced colitis. Immunol Cell Biol 2023; 101:12-15. [PMID: 36326611 DOI: 10.1111/imcb.12604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Megan Barnet
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW, Australia.,The Kinghorn Cancer Centre, Sydney, NSW, Australia
| | - Etienne Masle-Farquhar
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW, Australia
| | - Mandeep Singh
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW, Australia
| | - Deborah L Burnett
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW, Australia
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Kwon Y, Kim YZ, Choe YH, Kim MJ. Increased monocyte abundance as a marker for relapse after discontinuation of biologics in inflammatory bowel disease with deep remission. Front Immunol 2022; 13:996875. [PMID: 36389755 PMCID: PMC9664214 DOI: 10.3389/fimmu.2022.996875] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 10/17/2022] [Indexed: 08/24/2023] Open
Abstract
Monocytes are involved in the upstream inflammatory process in the immune reaction in inflammatory bowel disease (IBD). Patients with IBD who discontinued biologics have been found to relapse, even after checking for deep remission. This study investigated whether monocytes could act as a predictor of relapse in patients who experienced relapse after the discontinuation of biologics. To this end, pediatric patients (<19 years old, n = 727) diagnosed with IBD from January 2003 to December 2021 were retrospectively reviewed. Clinical features, monocytes, and disease activity at the time of discontinuing biologics were evaluated by dividing patients into a relapsed group and a non-relapsed group after discontinuing biologics. The percentage of monocytes (8.65% vs. 6.42%, P < 0.001), the absolute monocyte count (614.79 cells/μL vs. 381.70 cells/μL, P < 0.001), and the monocyte/polymorphonuclear leukocyte (PMN) ratio (0.18 vs. 0.11, P < 0.001) at the time of discontinuation were significantly higher in patients who experienced relapse. As a result of multivariate analysis, the monocyte percentage (odds ratio: 2.012, P < 0.001) and monocyte/PMN ratio (odds ratio: 4.320E+14, P = 0.002) were evaluated as risk factors for relapse. Diagnostic capability was confirmed using area under operating characteristic curve (0.782) of the monocyte percentage for assessing the relapse within 6 months with cutoff value of 8.15% (P < 0.001). The findings presented in this study indicate that the patients with high monocyte counts experienced relapse after the discontinuation of biologics. A monocyte percentage of over 8.15% in the blood at the time of discontinuation was found to be associated with a high probability of relapse within 6 months, even in deep remission.
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Affiliation(s)
| | | | | | - Mi Jin Kim
- *Correspondence: Yon Ho Choe, ; Mi Jin Kim,
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11
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Karaky M, Boucher G, Mola S, Foisy S, Beauchamp C, Rivard ME, Burnette M, Gosselin H, Bitton A, Charron G, Goyette P, Rioux JD. Prostaglandins and calprotectin are genetically and functionally linked to the Inflammatory Bowel Diseases. PLoS Genet 2022; 18:e1010189. [PMID: 36155972 PMCID: PMC9536535 DOI: 10.1371/journal.pgen.1010189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 10/06/2022] [Accepted: 08/31/2022] [Indexed: 11/18/2022] Open
Abstract
Background
Genome wide association studies (GWAS) have identified and validated more than 200 genomic loci associated with the inflammatory bowel disease (IBD), although for most the causal gene remains unknown. Given the importance of myeloid cells in IBD pathogenesis, the current study aimed to uncover the role of genes within IBD genetic loci that are endogenously expressed in this cell lineage.
Methods
The open reading frames (ORF) of 42 genes from IBD-associated loci were expressed via lentiviral transfer in the THP-1 model of human monocytes and the impact of each of these on the cell’s transcriptome was analyzed using a RNA sequencing-based approach. We used a combination of genetic and pharmacologic approaches to validate our findings in the THP-1 line with further validation in human induced pluripotent stem cell (hiPSC)-derived-monocytes.
Results
This functional genomics screen provided evidence that genes in four IBD GWAS loci (PTGIR, ZBTB40, SLC39A11 and NFKB1) are involved in controlling S100A8 and S100A9 genes expression, which encode the two subunits of calprotectin (CP). We demonstrated that increasing PTGIR expression and/or stimulating PTGIR signaling resulted in increased CP expression in THP-1.
This was further validated in hiPSC-derived monocytes. Conversely, knocking-down PTGIR endogenous expression and/or inhibiting PTGIR signaling led to decreased CP expression. These analyses were extended to the known IBD gene PTGER4, whereby its specific agonist also led to increased CP expression. Furthermore, we demonstrated that the PTGIR and PTGER4 mediated control of CP expression was dependent on signaling via adenylate cyclase and STAT3. Finally, we demonstrated that LPS-mediated increases in CP expression could be potentiated by agonists of PTGIR and PTGER4, and diminished by their antagonists.
Conclusion
Our results support a causal role for the PTGIR, PTGER4, ZBTB40, SLC39A11 and NFKB1 genes in IBD, with all five genes regulating the expression of CP in myeloid cells, as well as potential roles for the prostacyclin/prostaglandin biogenesis and signaling pathways in IBD susceptibility and pathogenesis.
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Affiliation(s)
- Mohamad Karaky
- Montreal Heart Institute Research Center, Montreal, Quebec, Canada
| | | | - Saraï Mola
- Montreal Heart Institute Research Center, Montreal, Quebec, Canada
| | - Sylvain Foisy
- Montreal Heart Institute Research Center, Montreal, Quebec, Canada
| | | | - Marie-Eve Rivard
- Montreal Heart Institute Research Center, Montreal, Quebec, Canada
| | - Melanie Burnette
- Montreal Heart Institute Research Center, Montreal, Quebec, Canada
| | - Hugues Gosselin
- Montreal Heart Institute Research Center, Montreal, Quebec, Canada
| | - iGenoMed Consortium
- A complete list of members and their affiliations can be found at the end of the manuscript
| | - Alain Bitton
- McGill University Health Centre, Division of Gastroenterology, Montreal, Quebec, Canada
| | - Guy Charron
- Montreal Heart Institute Research Center, Montreal, Quebec, Canada
| | - Philippe Goyette
- Montreal Heart Institute Research Center, Montreal, Quebec, Canada
| | - John D. Rioux
- Montreal Heart Institute Research Center, Montreal, Quebec, Canada
- Université de Montréal, Faculty of Medicine, Montreal, Quebec, Canada
- * E-mail:
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12
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Douadi C, Vazeille E, Chambon C, Hébraud M, Fargeas M, Dodel M, Coban D, Pereira B, Birer A, Sauvanet P, Buisson A, Barnich N. Anti-TNF Agents Restrict Adherent-invasive Escherichia coli Replication Within Macrophages Through Modulation of Chitinase 3-like 1 in Patients with Crohn's Disease. J Crohns Colitis 2022; 16:1140-1150. [PMID: 35022663 DOI: 10.1093/ecco-jcc/jjab236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 12/01/2021] [Accepted: 01/11/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS The mechanism of action of anti-tumour necrosis factor [anti-TNF] agents could implicate macrophage modulation in Crohn's disease [CD]. As CD macrophages are defective in controlling CD-associated adherent-invasive Escherichia coli [AIEC], anti-TNF agents could limit AIEC replication within macrophages. We assessed the effect of anti-TNF agents on AIEC survival within monocyte-derived macrophages [MDMs] from CD patients and attempted to identify the proteins involved. METHODS Peripheral blood MDMs were obtained from 44 CD patients [22 with and 22 without anti-TNF agents]. MDMs were infected with reference strain AIEC-LF82. Proteomic analysis was performed before and 6 h after AIEC-LF82 infection. RESULTS AIEC-LF82 survival was lower in MDMs from CD patients receiving anti-TNF agents compared to those who did not [-73%, p = 0.006]. After AIEC-LF82 infection, the levels of CD82 [p = 0.007], ILF3 [Interleukin enhancer-binding factor 3; p = 0.001], FLOT-1 [Flotillin-1; p = 0.007] and CHI3L1 [Chitinase 3-like 1; p = 0.035] proteins were different within CD-MDMs depending on anti-TNF exposure. FLOT-1 [ϱ = -0.44; p = 0.038] and CHI3L1 [ϱ = 0.57, p = 0.006] levels were inversely and positively correlated with AIEC survival within MDMs from CD patients with or without anti-TNF, respectively. We observed a dose-dependent decrease of AIEC-LF82 survival after adjunction of anti-TNF within MDMs, inducing an increase of FLOT-1 and decrease of CHI3L1 mRNA levels. Neutralization of intra-macrophagic CHI3L1 protein using anti-CHI3L1 antibodies reduced AIEC survival within macrophages 6 h after infection [p < 0.05]. CONCLUSION Anti-TNF agents are able to restrict replication of pathobionts, such as AIEC, within macrophages by modulating FLOT-1 and CHI3L1 expression in CD patients.
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Affiliation(s)
- Clara Douadi
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France
| | - Emilie Vazeille
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France.,Gastroenterology Department, CHU Estaing, Clermont-Ferrand, France
| | - Christophe Chambon
- INRAE, Plateforme d'Exploration du Métabolisme, composante protéomique (PFEMcp), Saint-Genès-Champanelle, France
| | - Michel Hébraud
- INRAE, Plateforme d'Exploration du Métabolisme, composante protéomique (PFEMcp), Saint-Genès-Champanelle, France.,Université Clermont Auvergne, INRAE, UMR Microbiologie Environnement digestif Santé (MEDiS), Saint-Genès-Champanelle, France
| | - Margot Fargeas
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France
| | - Marie Dodel
- Gastroenterology Department, CHU Estaing, Clermont-Ferrand, France
| | - Dilek Coban
- Gastroenterology Department, CHU Estaing, Clermont-Ferrand, France
| | - Bruno Pereira
- Biostatistic Unit, CHU Estaing, Clermont-Ferrand, France
| | - Aurélien Birer
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France.,Centre National de Référence de la Résisitance aux antibiotiques, service de Bactériologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Pierre Sauvanet
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France.,Surgery and Oncology Digestive Department, CHU Estaing, Clermont-Ferrand, France
| | - Anthony Buisson
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France.,Gastroenterology Department, CHU Estaing, Clermont-Ferrand, France
| | - Nicolas Barnich
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France
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13
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IFNγ-Treated Macrophages Induce EMT through the WNT Pathway: Relevance in Crohn’s Disease. Biomedicines 2022; 10:biomedicines10051093. [PMID: 35625832 PMCID: PMC9139093 DOI: 10.3390/biomedicines10051093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/29/2022] [Accepted: 05/05/2022] [Indexed: 01/25/2023] Open
Abstract
Background: Fibrosis is a common complication of Crohn’s disease (CD) in which macrophages play a central role. Epithelial-mesenchymal transition (EMT) and the WNT pathway have been associated with fibrosis. We aim to analyse the relevance of the tissue microenvironment in macrophage phenotype and the EMT process. Methods: Intestinal surgical resections are obtained from control and CD patients with stenotic or penetrating behaviour. Cytokine’s expression, macrophage phenotype, EMT markers and WNT signalling pathway are determined by WB, RT-PCR, ELISA or Cytometry. U937 cells are treated with IFNγ, TNFα, IL1β, IL4 or IL10 and co-cultured with HT29 cells and, in some cases, are treated with XAV939 or miFZD4. The expression of macrophage, EMT and WNT pathway markers in U937 or HT29 cells is analysed by WB or RT-PCR. Results: IFNγ, WNT6, CD16 and CD86 are increased in the intestinal tissue of CD patients. IFNγ-treated U937 activated the EMT process and WNT pathway in HT29 cells, and the EMT process is mediated by FZD4. Conclusions: An IFNγ-rich microenvironment polarises macrophages, which induces EMT through the WNT pathway.
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14
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Gupta B, Rai R, Oertel M, Raeman R. Intestinal Barrier Dysfunction in Fatty Liver Disease: Roles of Microbiota, Mucosal Immune System, and Bile Acids. Semin Liver Dis 2022; 42:122-137. [PMID: 35738255 PMCID: PMC9307091 DOI: 10.1055/s-0042-1748037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) describes a spectrum of progressive liver diseases ranging from simple steatosis to steatohepatitis and fibrosis. Globally, NAFLD is the leading cause of morbidity and mortality associated with chronic liver disease, and NAFLD patients are at a higher risk of developing cirrhosis and hepatocellular carcinoma. While there is a consensus that inflammation plays a key role in promoting NAFLD progression, the underlying mechanisms are not well understood. Recent clinical and experimental evidence suggest that increased hepatic translocation of gut microbial antigens, secondary to diet-induced impairment of the intestinal barrier may be important in driving hepatic inflammation in NAFLD. Here, we briefly review various endogenous and exogenous factors influencing the intestinal barrier and present recent advances in our understanding of cellular and molecular mechanisms underlying intestinal barrier dysfunction in NAFLD.
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Affiliation(s)
- Biki Gupta
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Ravi Rai
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michael Oertel
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania,Pittsburgh Liver Research Center, University of Pittsburgh Medical Center and University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,McGowan Institute for Regenerative Medicine, University of Pittsburgh Medical Center and University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Reben Raeman
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania,Pittsburgh Liver Research Center, University of Pittsburgh Medical Center and University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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15
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Naghizadeh M, Dalgaard TS, Klaver L, Engberg RM. Effects of encapsulated butyrate and salinomycin on gut leakage and intestinal inflammation in broilers. Br Poult Sci 2022; 63:499-509. [PMID: 35170392 DOI: 10.1080/00071668.2022.2042483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
1. The objectives of this study were to i) compare the effects of a commercial product providing encapsulated butyrate (EB) in combination with salinomycin in diets of broilers with impaired intestinal integrity and ii) to identify easy-to-measure biomarkers to evaluate intestinal integrity and health.2. In total, 672, one-day-old male broilers (Ross 308) were randomly assigned to three experimental groups (eight replicates/group): no dietary supplement (control); EB (500 mg/kg, UltraGuard™-DUO, Devenish, Ireland); salinomycin (69 mg/kg feed, Sacox® 120). Impaired gut integrity was induced by a 10 times overdose of a commercial attenuated live vaccine against coccidiosis (Hipracox®, Hipra) on d 17 combined with a grower feed providing rye (50 g/kg diet).3. Improved intestinal integrity and functionality were reflected by reduced fluorescein isothiocyanate-dextran (FITC-D) plasma levels, reduced bacterial translocation to the liver (on d 21) and increased plasma coloration level on d 21 after dietary supplementation of salinomycin, compared to a non-supplemented control diet. Both EB and salinomycin reduced plasma levels of D-lactate (P<0.05).4. An anti-inflammatory effect of salinomycin was indicated as the transient increase in circulating monocytes observed in the EB and control group from 20 to 28 d of age was slightly, but not significantly reduced, in the salinomycin-fed group. Interestingly, greater expression of tumour necrosis factor α (TNF-α) and mucin 2 (MUC2) genes (P=0.039 and P = 0.067, respectively) were detected in the group receiving salinomycin.5. These effects may have collectively contributed to the significantly improved performance of broilers supplemented with salinomycin. The results indicated that EB at 500 mg/kg in feed, in contrast to salinomycin, neither supported gut health nor modulated intestinal integrity in broilers.
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Affiliation(s)
- Mohammad Naghizadeh
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Tina Sørensen Dalgaard
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Laura Klaver
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Ricarda Margarete Engberg
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
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16
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Juzenas S, Hübenthal M, Lindqvist CM, Kruse R, Steiert TA, Degenhardt F, Schulte D, Nikolaus S, Zeissig S, Bergemalm D, Almer S, Hjortswang H, Bresso F, Strüning N, Kupcinskas J, Keller A, Lieb W, Rosenstiel P, Schreiber S, D’Amato M, Halfvarson J, Hemmrich-Stanisak G, Franke A. Detailed Transcriptional Landscape of Peripheral Blood Points to Increased Neutrophil Activation in Treatment-Naïve Inflammatory Bowel Disease. J Crohns Colitis 2022; 16:1097-1109. [PMID: 35022690 PMCID: PMC9351981 DOI: 10.1093/ecco-jcc/jjac003] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/13/2021] [Accepted: 01/08/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Inflammatory bowel disease [IBD] is a chronic relapsing disorder of the gastrointestinal tract, which generally manifests as Crohn's disease [CD] or ulcerative colitis [UC]. These subtypes are heterogeneous in terms of disease location and histological features, while sharing common clinical presentation, genetic associations and, thus, common immune regulatory pathways. METHODS Using miRNA and mRNA coupled transcriptome profiling and systems biology approaches, we report a comprehensive analysis of blood transcriptomes from treatment-naïve [n = 110] and treatment-exposed [n = 177] IBD patients as well as symptomatic [n = 65] and healthy controls [n = 95]. RESULTS Broadly, the peripheral blood transcriptomes of CD and UC patients were similar. However, there was an extensive gene deregulation in the blood of IBD patients, while only a slight deregulation in symptomatic controls, when compared with healthy controls. The deregulated mRNAs and miRNAs are mainly involved in the innate immunity and are especially enriched in neutrophil activation-related pathways. Oxidative phosphorylation and neutrophil activation-related modules were found to be differentially co-expressed among treatment-naïve IBD as compared to healthy controls. In the deregulated neutrophil activation-related co-expression module, IL1B was identified as the central gene. Levels of co-expression among IL1B and chemosensing receptor [CXCR1/2 and FPR1/2] genes were reduced in the blood of IBD patients when compared with healthy controls. CONCLUSIONS Immune dysregulation seen in peripheral blood transcriptomes of treatment-naïve IBD patients is mainly driven by neutrophil activation.
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Affiliation(s)
- Simonas Juzenas
- Corresponding author: Simonas Juzenas, PhD, Institute of Clinical Molecular Biology (IKMB), Christian-Albrechts-University of Kiel (CAU), Rosalind-Franklin-Str. 12, D-24105 Kiel, Germany.
| | - Matthias Hübenthal
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany,Department of Dermatology, Quincke Research Center, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Carl Mårten Lindqvist
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany,School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Robert Kruse
- Department of Clinical Research Laboratory, Faculty of Medicine and Health, Örebro University, Örebro, Sweden,iRiSC – Inflammatory Response and Infection Susceptibility Centre, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Tim Alexander Steiert
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Frauke Degenhardt
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Dominik Schulte
- Division of Endocrinology, Diabetes and Clinical Nutrition, Department of Medicine I, University Hospital of Schleswig-Holstein, Kiel, Germany,Institute of Diabetes and Clinical Metabolic Research, Kiel University, Kiel, Germany
| | - Susanna Nikolaus
- Department of Internal Medicine I, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Sebastian Zeissig
- Medical Department 1, University Hospital Dresden, Technische Universität Dresden (TU Dresden), Dresden, Germany,Center for Regenerative Therapies Dresden (CRTD), Technische Universität (TU) Dresden, Dresden, Germany
| | - Daniel Bergemalm
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Sven Almer
- Department of Medicine, Karolinska Institutet, Solna, and Division of Gastroenterology, Karolinska University Hospital, Stockholm, Sweden
| | - Henrik Hjortswang
- Department of Gastroenterology and Hepatology, Linköping University, Linköping, and Department of Health, Medicine, and Caring Sciences, Linköping University, Linköping, Sweden
| | - Francesca Bresso
- Department of Medicine, Karolinska Institutet, Solna, and Division of Gastroenterology, Karolinska University Hospital, Stockholm, Sweden
| | | | - Nina Strüning
- Department of Internal Medicine I, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Juozas Kupcinskas
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Andreas Keller
- Chair for Clinical Bioinformatics, Saarland University, Saarbrücken, Germany,Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Wolfgang Lieb
- Institute of Epidemiology, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Philip Rosenstiel
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Stefan Schreiber
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany,Department of Internal Medicine I, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Mauro D’Amato
- Unit of Clinical Epidemiology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden,Gastrointestinal Genetics Lab, CIC bioGUNE – BRTA, Derio, Spain,Ikerbasque, Basque Foundation for Science, Bilbao, Spain
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17
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Gryglewski A, Richter P, Szczepanik M. Changes in γδT Cells in Peripheral Blood of Patients with Ulcerative Colitis Exacerbations. Arch Immunol Ther Exp (Warsz) 2021; 69:18. [PMID: 34287711 PMCID: PMC8295081 DOI: 10.1007/s00005-021-00620-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 06/11/2021] [Indexed: 12/20/2022]
Abstract
The role of γδT cells in ulcerative colitis (UC) is well confirmed in experimental animals and demonstrated in many clinical observations. Recent investigations have indicated that UC is associated with several forms of immune imbalance, such as an imbalance between effector T cells and regulatory T cells. However, little is known about the cellular aspect of clinical colitis exacerbations. We observed 140 patients with histologically confirmed UC over the course of 8 years. We investigated the percentage of γδT and αβT cells in peripheral blood of patients and also the expression of various surface markers (CD25, CD54, CD62L). Patients were assembled into stable colitis and exacerbated colitis groups. The percentage of γδT and αβT cells was evaluated by Ortho Cytorone Absolute flow cytometer. In patients with exacerbated colitis we observed a decrease of γδT cells in peripheral blood and an increased ratio of αβT/γδT. Additionally, we found that exacerbation results in a significant increase of percentage of γδTCD25, γδTCD54 and γδTCD62L lymphocytes in peripheral blood when compared to patients with stable colitis. Exacerbation of ulcerative colitis results in a decreased percentage of γδT cells in peripheral blood with increase of CD25, CD54 and CD62L expressing γδT cells. This may represent the effect of cell activation and migration, similar to that observed after the surgical trauma. We hope that this observation may help to predict exacerbations in colitis patients.
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Affiliation(s)
- Andrzej Gryglewski
- Department of Anatomy and Department of General Surgery, Gastroenterology, Oncology and Transplantology, Jagiellonian University Medical College, Kraków, Poland.
| | - Piotr Richter
- Department of General Surgery, Gastroenterology, Oncology and Transplantology, Jagiellonian University Medical College, Kraków, Poland
| | - Marian Szczepanik
- Department of Medical Biology, Jagiellonian University Medical College, Kraków, Poland.
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18
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Sienkiewicz M, Szymańska P, Fichna J. Supplementation of Bovine Colostrum in Inflammatory Bowel Disease: Benefits and Contraindications. Adv Nutr 2021; 12:533-545. [PMID: 33070186 PMCID: PMC8009748 DOI: 10.1093/advances/nmaa120] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/06/2020] [Accepted: 09/03/2020] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a group of chronic relapsing disorders whose etiology has not been fully explained. Therefore, available therapeutic approaches for IBD patients are still insufficient. Current treatment strategies are targeted to immune system dysfunctions, often associated with alternations in the microbiota, which contribute to the development of chronic intestinal inflammation. Therapeutics include anti-inflammatory drugs such as aminosalicylates and corticosteroids, immunosuppressive agents, antibiotics, and biological agents such as infliximab and vedolizumab. Auxiliary therapies involve a balanced and personalized diet, healthy lifestyle, avoiding stress, as well as dietary supplements. In this review, we discuss the use of bovine colostrum (BC) as a therapeutic agent, including its advantages and contraindications. We summarize our knowledge on well-researched BC constituents and their effects on the gastrointestinal tract as evidenced in in vitro and in vivo studies.
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Affiliation(s)
- Michał Sienkiewicz
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - Patrycja Szymańska
- Department of Hemostasis and Hemostatic Disorders, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
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19
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Anderson A, Cherfane C, Click B, Ramos-Rivers C, Koutroubakis IE, Hashash JG, Babichenko D, Tang G, Dunn M, Barrie A, Proksell S, Dueker J, Johnston E, Schwartz M, Binion DG. Monocytosis Is a Biomarker of Severity in Inflammatory Bowel Disease: Analysis of a 6-Year Prospective Natural History Registry. Inflamm Bowel Dis 2021; 28:70-78. [PMID: 33693659 PMCID: PMC8730686 DOI: 10.1093/ibd/izab031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Indexed: 01/04/2023]
Abstract
BACKGROUND Inflammatory bowel disease (IBD) is associated with alterations of the innate and adaptive immune systems. Monocytes respond to inflammation and infection, yet the relationship between monocytosis and IBD severity is not fully understood. We aimed to characterize the prevalence of monocytosis in IBD and the association between monocytosis and disease severity and IBD-related health care utilization. METHODS We used a multiyear, prospectively collected natural history registry to compare patients with IBD with monocytosis to those without monocytosis, among all patients and by disease type. RESULTS A total of 1290 patients with IBD (64.1% with Crohn disease; 35.9% with ulcerative colitis) were included (mean age 46.4 years; 52.6% female). Monocytosis was found in 399 (30.9%) of patients with IBD (29.3% with Crohn disease; 33.9% with ulcerative colitis). Monocytosis was significantly associated with abnormal C-reactive protein level and erythrocyte sedimentation rate, anemia, worse quality of life, active disease, and increased exposure to biologics (all P < 0.001). Compared with patients without monocytosis, patients with monocytosis had a 3-fold increase in annual financial health care charges (median: $127,013 vs. $32,925, P < 0.001) and an increased likelihood of hospitalization (adjusted odds ratio [AOR], 4.5; P < 0.001), IBD-related surgery (AOR, 1.9; P = 0.002), and emergency department (ED) use (AOR, 2.8; P < 0.001). Patients with monocytosis had a shorter time to surgery, hospitalization, and ED visit after stratifying by disease activity (all P < 0.05). CONCLUSIONS Patients with IBD with monocytosis, regardless of disease type, are at increased risk for worse clinical outcomes, hospitalization, surgery, and ED use. Peripheral monocytosis may represent a routinely available biomarker of a distinct subgroup with severe disease.
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Affiliation(s)
- Alyce Anderson
- University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Cynthia Cherfane
- Division of Gastroenterology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Benjamin Click
- Department of Gastroenterology, Hepatology and Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
| | - Claudia Ramos-Rivers
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Ioannis E Koutroubakis
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Jana G Hashash
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA,Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos-Jbeil, Lebanon
| | - Dmitriy Babichenko
- School of Information Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Gong Tang
- School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Michael Dunn
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Arthur Barrie
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Siobhan Proksell
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Jeffrey Dueker
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Elyse Johnston
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Marc Schwartz
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - David G Binion
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA,Address correspondence to: David G. Binion, MD, Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center, UPMC PUH Mezzanine Level C-Wing, 200 Lothrop Street, Pittsburgh, PA 15213 ()
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20
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Lee SJ, Yoon BR, Kim HY, Yoo SJ, Kang SW, Lee WW. Activated Platelets Convert CD14 +CD16 - Into CD14 +CD16 + Monocytes With Enhanced FcγR-Mediated Phagocytosis and Skewed M2 Polarization. Front Immunol 2021; 11:611133. [PMID: 33488616 PMCID: PMC7817612 DOI: 10.3389/fimmu.2020.611133] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/20/2020] [Indexed: 12/24/2022] Open
Abstract
Monocytes are important cellular effectors of innate immune defense. Human monocytes are heterogeneous and can be classified into three distinct subsets based on CD14 and CD16 expression. The expansion of intermediate CD14+CD16+ monocytes has been reported in chronic inflammatory diseases including rheumatoid arthritis (RA). However, the mechanism underlying induction of CD16 and its role in monocytes remains poorly understood. Here, we demonstrate that activated platelets are important for induction of CD16 on classical CD14+CD16- monocytes by soluble factors such as cytokines. Cytokine neutralization and signaling inhibition assays reveal that sequential involvement of platelet-derived TGF-β and monocyte-derived IL-6 contribute to CD16 induction on CD14+CD16- monocytes. Activated platelet-induced CD16 on monocytes participates in antibody-dependent cellular phagocytosis (ADCP) and its level is positively correlated with phagocytic activity. CD14+CD16- monocytes treated with activated platelets preferentially differentiate into M2 macrophages, likely the M2c subset expressing CD163 and MerTK. Lastly, the amount of sCD62P, a marker of activated platelets, is significantly elevated in plasma of RA patients and positively correlates with clinical parameters of RA. Our findings suggest an important role of activated platelets in modulating phenotypical and functional features of human monocytes. This knowledge increases understanding of the immunological role of CD14+CD16+ cells in chronic inflammatory diseases.
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Affiliation(s)
- Su Jeong Lee
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.,BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, South Korea
| | - Bo Ruem Yoon
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea
| | - Hee Young Kim
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea.,Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul, South Korea
| | - Su-Jin Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, South Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, South Korea
| | - Won-Woo Lee
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.,Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea.,Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul, South Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea.,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, South Korea.,Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea
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21
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Severe Acute Respiratory Syndrome Coronavirus 2: The Role of the Main Components of the Innate Immune System. Inflammation 2021; 44:2151-2169. [PMID: 34524614 PMCID: PMC8442517 DOI: 10.1007/s10753-021-01519-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/08/2021] [Accepted: 07/08/2021] [Indexed: 02/08/2023]
Abstract
At the end of December 2019, the COVID-19 pandemic began in Wuhan of China. COVID-19 affects different people with a wide spectrum of clinical manifestations, ranging from asymptomatic with recovery without hospitalization up to a severe acute respiratory syndrome (SARS). The innate and adaptive immunity appears responsible for the defense against the virus and recovery from the disease. The innate immune system, as the first line of defense, is essential for the detection of virus and subsequent activation of acquired immunity. The innate immune response is carried out by sentinel cells such as monocytes/macrophages and dendritic cells and by receptors known as pattern recognition receptors (PRR). These receptors can recognize various components of the virus, which lead to intracellular signaling and subsequently the synthesis of various cytokines. These cytokines then recruit other immune cells, activate adaptive immune responses, and inhibit viral spreading. The most common receptors include Toll-like receptors, C-type lectin receptors, and RIG-I like receptors. This review describes the current knowledge about the interplay between innate immune responses and SARS-CoV-2 with a focus on the innate immune cells and the role of their receptors in viral RNA recognition, as well as their mechanisms for recognizing SARS-CoV-2.
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22
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Li Yim AY, Duijvis NW, Ghiboub M, Sharp C, Ferrero E, Mannens MM, D’Haens GR, de Jonge WJ, te Velde AA, Henneman P. Whole-Genome DNA Methylation Profiling of CD14+ Monocytes Reveals Disease Status and Activity Differences in Crohn's Disease Patients. J Clin Med 2020; 9:E1055. [PMID: 32276386 PMCID: PMC7230341 DOI: 10.3390/jcm9041055] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/04/2020] [Accepted: 04/06/2020] [Indexed: 12/13/2022] Open
Abstract
Crohn's disease (CD) is a multifactorial incurable chronic disorder. Current medical treatment seeks to induce and maintain a state of remission. During episodes of inflammation, monocytes infiltrate the inflamed mucosa whereupon they differentiate into macrophages with a pro-inflammatory phenotype. Here, we sought to characterize the circulating monocytes by profiling their DNA methylome and relate it to the level of CD activity. We gathered an all-female age-matched cohort of 16 CD patients and 7 non-CD volunteers. CD patients were further subdivided into 8 CD patients with active disease (CD-active) and 8 CD patients in remission (CD-remissive) as determined by the physician global assessment. We identified 15 and 12 differentially methylated genes (DMGs) when comparing CD with non-CD and CD-active with CD-remissive, respectively. Differential methylation was predominantly found in the promoter regions of inflammatory genes. Comparing our observations with gene expression data on classical (CD14++CD16-), non-classical (CD14+CD16++) and intermediate (CD14++CD16+) monocytes indicated that while 7 DMGs were differentially expressed across the 3 subsets, the remaining DMGs could not immediately be associated with differences in known populations. We conclude that CD activity is associated with differences in DNA methylation at the promoter region of inflammation-associated genes.
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Affiliation(s)
- Andrew Y.F. Li Yim
- Department of Clinical Genetics, Amsterdam University Medical Centers, University of Amsterdam, Genome Diagnostics Laboratory, Amsterdam Reproduction & Development, 1105 AZ Amsterdam, The Netherlands
- R&D GlaxoSmithKline, Stevenage SG1 2NY, UK; (M.G.); (C.S.); (E.F.)
| | - Nicolette W. Duijvis
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology & Metabolism, 1105 BK Amsterdam, The Netherlands; (N.W.D.); (W.J.d.J.)
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology & Metabolism, 1105 AZ Amsterdam, The Netherlands;
| | - Mohammed Ghiboub
- R&D GlaxoSmithKline, Stevenage SG1 2NY, UK; (M.G.); (C.S.); (E.F.)
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology & Metabolism, 1105 BK Amsterdam, The Netherlands; (N.W.D.); (W.J.d.J.)
| | - Catriona Sharp
- R&D GlaxoSmithKline, Stevenage SG1 2NY, UK; (M.G.); (C.S.); (E.F.)
| | - Enrico Ferrero
- R&D GlaxoSmithKline, Stevenage SG1 2NY, UK; (M.G.); (C.S.); (E.F.)
| | - Marcel M.A.M. Mannens
- Department of Clinical Genetics, Amsterdam University Medical Centers, University of Amsterdam, Genome Diagnostics Laboratory, Amsterdam Reproduction & Development, 1105 AZ Amsterdam, The Netherlands
| | - Geert R. D’Haens
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology & Metabolism, 1105 AZ Amsterdam, The Netherlands;
| | - Wouter J. de Jonge
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology & Metabolism, 1105 BK Amsterdam, The Netherlands; (N.W.D.); (W.J.d.J.)
- Department of Surgery, University Clinic of Bonn, 53127 Bonn, Germany
| | - Anje A. te Velde
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology & Metabolism, 1105 BK Amsterdam, The Netherlands; (N.W.D.); (W.J.d.J.)
| | - Peter Henneman
- Department of Clinical Genetics, Amsterdam University Medical Centers, University of Amsterdam, Genome Diagnostics Laboratory, Amsterdam Reproduction & Development, 1105 AZ Amsterdam, The Netherlands
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23
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Zhao L, Tang Y, Lei N, Zhou D, Chen B, Gan T, Yang X, Zhang Y. Clinical features and monocyte/macrophage subsets characterization in granulomatous vs non-granulomatous Crohn's disease. Scand J Gastroenterol 2020; 55:442-448. [PMID: 32285715 DOI: 10.1080/00365521.2020.1748222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Aims: Granuloma, mainly composed of macrophages, is a histological feature of Crohn's disease (CD). However, its significance in CD has not been investigated adequately. Our study aims to address this issue by comparing the clinical manifestations and monocyte/macrophage subtypes between granulomatous and non-granulomatous CD.Materials and methods: Demographics, symptoms, endoscopic manifestations, histopathological features, and Montreal classification of patients with and without granulomas were compared. Flow cytometry was used to determine the phagocytosis and subsets of monocytes. ELISA was used to measure the plasma levels of TNF-α, IL-6, IL-1β, IL-10, CCL22, and TGF-β1. Immunohistochemistry was performed to quantify the expression of CD68, CD163 and iNOS.Results: Of the222 CD patients enrolled, granulomas were detected in 90. Compared with non-granulomatous CD patients, those with granulomas had younger age, increased rates of diarrhea and perianal complications, along with higher endoscopic score. Intestinal stenosis and crypt abscess were more frequently observed in granulomatous CD patients. A defective phagocytosis of monocytes was observed in granulomatous CD patients. Meanwhile, higher percentages of intermediate and non-classic monocytes, with a lower percentage of classic monocyte were found in them. Besides, they had higher levels of TGF-β1 and IL-10, a lower level of TNF-α, an increased ratio of CD163+/CD68+cells, and a decreased ratio of iNOS+/CD68+ cells.Conclusions: Granulomatous CD patients exhibited different manifestations compared with their non-granulomatous counterparts. More aggressive therapy may be needed in granulomatous CD patients. Furthermore, the heterogeneity of monocyte/macrophage subsets and altered plasma cytokine may underlie the difference between those two groups.
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Affiliation(s)
- Li Zhao
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Tang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Na Lei
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Dandan Zhou
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Bingrun Chen
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Gan
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoli Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Zhang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
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24
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Manthey CL, Moore BA, Chen Y, Loza MJ, Yao X, Liu H, Belkowski SM, Raymond-Parks H, Dunford PJ, Leon F, Towne JE, Plevy SE. The CSF-1-receptor inhibitor, JNJ-40346527 (PRV-6527), reduced inflammatory macrophage recruitment to the intestinal mucosa and suppressed murine T cell mediated colitis. PLoS One 2019; 14:e0223918. [PMID: 31710624 PMCID: PMC6844469 DOI: 10.1371/journal.pone.0223918] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 10/01/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND & AIMS Originally believed to be primarily a disorder of T-cell signaling, evidence shows that macrophage-lineage cells also contribute to the pathogenesis of Crohn's disease (CD). Colony stimulating factor-1 (CSF-1) is a key regulator of the macrophage lineage, but its role in CD has not been well established. We examined transcriptional data from CD mucosa for evidence of CSF-1 pathway activation and tested JNJ-40346527 (PRV-6527), a small molecule inhibitor of CSF-1 receptor kinase (CSF-1R), for its ability to inhibit disease indices in murine colitis. METHODS A CSF-1 pathway gene set was created from microarray data of human whole blood cultured ex vivo with CSF-1 and compared to a TNFα-induced gene set generated from epithelial-lineage cells. Gene set variation analysis was performed using existing Crohn's mucosa microarray data comparing patients who either responded or failed to respond to anti-TNFα therapy. Commencing day 14 or day 21, mice with T-cell transfer colitis were treated with vehicle or JNJ-40346527 until study termination (day 42). Endpoints included colon weight/length ratios and histopathology scores, and macrophage and T cells were assessed by immunohistochemistry. Mucosal gene expression was investigated using RNAseq. RESULTS Both the CSF-1 and the TNFα gene sets were enriched in the colonic mucosal transcriptomes of Crohn's disease and in mouse colitis, and expression of both gene sets was highest in patients who did not respond to anti-TNFα therapy. In these patients neither set was reduced by therapy. In the mouse model, JNJ-40346527 inhibited the increase in colon weight/length ratio by ∼50%, reduced histological disease scores by ∼60%, and reduced F4/80+ mononuclear cell and CD3+ lymphocyte numbers. RNAseq analysis confirmed the CSF-1 gene set was sharply reduced in treated mice, as were gene sets enriched in "M1" inflammatory and "M0" resident macrophages and in activated T cells. CONCLUSIONS CSF-1 biology is activated in Crohn's disease and in murine T cell transfer colitis. Inhibition of CSF-1R by JNJ-40346527 was associated with attenuated clinical disease scores and reduced inflammatory gene expression in mice. These data provide rationale for testing JNJ-40346527 (PRV-6527) in human inflammatory bowel disease.
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Affiliation(s)
- Carl L. Manthey
- Janssen Research & Development, LLC, Pennsylvania, United States of America
| | - Beverley A. Moore
- Janssen Research & Development, LLC, Pennsylvania, United States of America
- * E-mail:
| | - Yanqing Chen
- Janssen Research & Development, LLC, Pennsylvania, United States of America
| | - Matthew J. Loza
- Janssen Research & Development, LLC, Pennsylvania, United States of America
| | - Xiang Yao
- Janssen Research & Development, LLC, Pennsylvania, United States of America
| | - Hao Liu
- Janssen Research & Development, LLC, Pennsylvania, United States of America
| | | | | | - Paul J. Dunford
- Janssen Research & Development, LLC, Pennsylvania, United States of America
| | - Francisco Leon
- Janssen Research & Development, LLC, Pennsylvania, United States of America
| | - Jennifer E. Towne
- Janssen Research & Development, LLC, Pennsylvania, United States of America
| | - Scott E. Plevy
- Janssen Research & Development, LLC, Pennsylvania, United States of America
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25
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Waller K, James C, de Jong A, Blackmore L, Ma Y, Stagg A, Kelsell D, O'Dwyer M, Hutchins R, Alazawi W. ADAM17-Mediated Reduction in CD14 ++CD16 + Monocytes ex vivo and Reduction in Intermediate Monocytes With Immune Paresis in Acute Pancreatitis and Acute Alcoholic Hepatitis. Front Immunol 2019; 10:1902. [PMID: 31507587 PMCID: PMC6718469 DOI: 10.3389/fimmu.2019.01902] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 07/26/2019] [Indexed: 12/16/2022] Open
Abstract
Impaired immune responses and increased susceptibility to infection characterize acute inflammatory conditions such as pancreatitis and alcoholic hepatitis and are major causes of morbidity and mortality. However, the mechanisms that drive this apparent immune paresis remain poorly understood. Monocytes mediate host responses to damage and pathogens in health and disease, and three subsets of monocytes have been defined based on CD14 and CD16 expression. We sought to determine the changes in monocyte subsets in acute pancreatitis (AP) and acute alcoholic hepatitis (AAH), together with functional consequences and mechanisms that underlie this change. Peripheral blood mononuclear cells (PBMCs) from patients with AP or AAH were compared with healthy controls. Monocyte subsets were defined by HLA-DR, CD14, and CD16 expression. Changes in surface and intracellular protein expression and phosphorylation were determined by flow cytometry. Phenotype and function were assessed following stimulation with lipopolysaccharide (LPS) or other agonists in the presence of specific inhibitors of TNFα and a disintegrin and metalloproteinase 17 (ADAM17). Patients with AP and AAH had reduced CD14++CD16+ intermediate monocytes compared to controls. Reduction of intermediate monocytes was recapitulated ex vivo by stimulating healthy control PBMCs with Toll-like receptor (TLR) agonists LPS, flagellin or polyinosilic:polycytidylic acid (poly I:C). Stimulation caused shedding of CD14 and CD16, which could be reversed using the ADAM17 inhibitor, TMI005 but not direct inhibitors of TNFα, a known ADAM17-target. Culturing PBMCs from healthy controls resulted in expansion of intermediate monocytes, which did not occur when LPS was in the culture medium. Cultured intermediate monocytes showed reduced expression of CX3CR1, CCR2, TLR4, and TLR5. We found reduced migratory responses, intracellular signaling and pro-inflammatory cytokine production, and increased expression of IL-10. Stimulation with TLR agonists results in ADAM17-mediated shedding of phenotypic markers from CD16+ monocytes, leading to apparent “loss” of intermediate monocytes. Reduction in CD14++CD16− monocytes and increased CD14++CD16+ is associated with altered responses in functional assays ex vivo. Patients with AP and AAH had reduced proportions of CD14++CD16+ monocytes and reduced phosphorylation of NFκB and IL-6 production in response to bacterial LPS. Together, these processes may contribute to the susceptibility to infection observed in AP and AAH.
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Affiliation(s)
- Kathryn Waller
- Blizard Institute, Queen Mary University of London, London, United Kingdom
| | - Charlotte James
- Blizard Institute, Queen Mary University of London, London, United Kingdom
| | - Anja de Jong
- Blizard Institute, Queen Mary University of London, London, United Kingdom
| | - Laura Blackmore
- Institute of Liver Studies and Transplantation, King's College London, London, United Kingdom
| | - Yun Ma
- Institute of Liver Studies and Transplantation, King's College London, London, United Kingdom
| | - Andrew Stagg
- Blizard Institute, Queen Mary University of London, London, United Kingdom
| | - David Kelsell
- Blizard Institute, Queen Mary University of London, London, United Kingdom
| | | | - Robert Hutchins
- Hepatopancreaticobiliary Unit, Barts Health NHS Trust, London, United Kingdom
| | - William Alazawi
- Blizard Institute, Queen Mary University of London, London, United Kingdom
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26
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Ma WT, Gao F, Gu K, Chen DK. The Role of Monocytes and Macrophages in Autoimmune Diseases: A Comprehensive Review. Front Immunol 2019; 10:1140. [PMID: 31178867 PMCID: PMC6543461 DOI: 10.3389/fimmu.2019.01140] [Citation(s) in RCA: 167] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 05/07/2019] [Indexed: 12/19/2022] Open
Abstract
Monocytes (Mo) and macrophages (Mϕ) are key components of the innate immune system and are involved in regulation of the initiation, development, and resolution of many inflammatory disorders. In addition, these cells also play important immunoregulatory and tissue-repairing roles to decrease immune reactions and promote tissue regeneration. Several lines of evidence have suggested a causal link between the presence or activation of these cells and the development of autoimmune diseases. In addition, Mo or Mϕ infiltration in diseased tissues is a hallmark of several autoimmune diseases. However, the detailed contributions of these cells, whether they actually initiate disease or perpetuate disease progression, and whether their phenotype and functional alteration are merely epiphenomena are still unclear in many autoimmune diseases. Additionally, little is known about their heterogeneous populations in different autoimmune diseases. Elucidating the relevance of Mo and Mϕ in autoimmune diseases and the associated mechanisms could lead to the identification of more effective therapeutic strategies in the future.
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Affiliation(s)
- Wen-Tao Ma
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest A&F University, Yangling, China.,School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Fei Gao
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Kui Gu
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - De-Kun Chen
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest A&F University, Yangling, China
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Vetvicka V, Gover O, Karpovsky M, Hayby H, Danay O, Ezov N, Hadar Y, Schwartz B. Immune-modulating activities of glucans extracted from Pleurotus ostreatus and Pleurotus eryngii. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.12.034] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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28
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Differences of the Structure of Immune Regulatory Cell Populations between Cellular Material from Sonographically Detected Focal Thyroid Lesions and Peripheral Blood in Humans. Int J Mol Sci 2019; 20:ijms20040918. [PMID: 30791564 PMCID: PMC6412456 DOI: 10.3390/ijms20040918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/11/2019] [Accepted: 02/16/2019] [Indexed: 01/30/2023] Open
Abstract
Focal thyroid lesions are common ultrasound findings with the estimated prevalence up to 67% of the population. They form characteristically enveloped regions with individual encapsulated microenvironment that may involve the specific distribution of immune system compounds—especially antigen presenting cells (APC). We analyzed and compared the most potent APC—plasmacytoid and conventional dendritic cells (DCs) subpopulations and three monocyte subpopulations as well as other immune cells—in peripheral blood and local blood of thyroid gland obtained parallelly in patients with focal thyroid lesions using flow cytometry. The analysis revealed significant differences in the distribution of main subsets of assessed cells between peripheral blood and biopsy material. The results support the existence of local, organ-specific immune reaction control networks within thyroid nodules.
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29
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Batko B, Schramm-Luc A, Skiba DS, Mikolajczyk TP, Siedlinski M. TNF-α Inhibitors Decrease Classical CD14 hiCD16- Monocyte Subsets in Highly Active, Conventional Treatment Refractory Rheumatoid Arthritis and Ankylosing Spondylitis. Int J Mol Sci 2019; 20:ijms20020291. [PMID: 30642076 PMCID: PMC6358965 DOI: 10.3390/ijms20020291] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 12/13/2022] Open
Abstract
Monocytes are pivotal cells in inflammatory joint diseases. We aimed to determine the effect of TNF-α inhibitors (TNFi) on peripheral blood monocyte subpopulations and their activation in ankylosing spondylitis (AS) and rheumatoid arthritis (RA) patients with high disease activity. To address this, we studied 50 (32 AS, 18 RA) patients with highly active disease with no prior history of TNFi use who were recruited and assigned to TNFi or placebo treatment for 12 weeks. Cytometric and clinical assessment was determined at baseline, four, and 12 weeks after initiation of TNFi treatment. We observed that treatment with TNFi led to a significant decrease in CD14hiCD16- monocytes in comparison to placebo, while circulating CD14dimCD16+ monocytes significantly increased. The TNFi-induced monocyte subset shifts were similar in RA and AS patients. While the percentage of CD14dimCD16+ monocytes increased, expression of CD11b and CD11c integrins on their surface was significantly reduced by TNFi. Additionally, CD45RA+ cells were more frequent. The shift towards nonclassical CD14dimCD16+ monocytes in peripheral blood due to TNFi treatment was seen in both AS and RA. This may reflect reduced recruitment of these cells to sites of inflammation due to lower inflammatory burden, which is associated with decreased disease activity.
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Affiliation(s)
- Bogdan Batko
- Department of Rheumatology, J. Dietl Specialist Hospital, 31-121 Krakow, Poland.
| | - Agata Schramm-Luc
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Krakow, Poland.
| | - Dominik S Skiba
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Krakow, Poland.
- BHF Centre of Research Excellence, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow G12 8TA, UK.
| | - Tomasz P Mikolajczyk
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Krakow, Poland.
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow G12 8TA, UK.
| | - Mateusz Siedlinski
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Krakow, Poland.
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30
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Piedra-Quintero ZL, Serrano C, Villegas-Sepúlveda N, Maravillas-Montero JL, Romero-Ramírez S, Shibayama M, Medina-Contreras O, Nava P, Santos-Argumedo L. Myosin 1F Regulates M1-Polarization by Stimulating Intercellular Adhesion in Macrophages. Front Immunol 2019; 9:3118. [PMID: 30687322 PMCID: PMC6335276 DOI: 10.3389/fimmu.2018.03118] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 12/17/2018] [Indexed: 12/13/2022] Open
Abstract
Intestinal macrophages are highly mobile cells with extraordinary plasticity and actively contribute to cytokine-mediated epithelial cell damage. The mechanisms triggering macrophage polarization into a proinflammatory phenotype are unknown. Here, we report that during inflammation macrophages enhance its intercellular adhesion properties in order to acquire a M1-phenotype. Using in vitro and in vivo models we demonstrate that intercellular adhesion is mediated by integrin-αVβ3 and relies in the presence of the unconventional class I myosin 1F (Myo1F). Intercellular adhesion mediated by αVβ3 stimulates M1-like phenotype in macrophages through hyperactivation of STAT1 and STAT3 downstream of ILK/Akt/mTOR signaling. Inhibition of integrin-αVβ3, Akt/mTOR, or lack of Myo1F attenuated the commitment of macrophages into a pro-inflammatory phenotype. In a model of colitis, Myo1F deficiency strongly reduces the secretion of proinflammatory cytokines, decreases epithelial damage, ameliorates disease activity, and enhances tissue repair. Together our findings uncover an unknown role for Myo1F as part of the machinery that regulates intercellular adhesion and polarization in macrophages.
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Affiliation(s)
| | - Carolina Serrano
- Department of Physiology, Biophysics and Neurosciences, Cinvestav Zacatenco, Mexico City, Mexico
| | | | - José L Maravillas-Montero
- Research Support Network, Universidad Nacional Autónoma de México and Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Mexico City, Mexico
| | - Sandra Romero-Ramírez
- Research Support Network, Universidad Nacional Autónoma de México and Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Mexico City, Mexico
| | - Mineko Shibayama
- Department of Infectomics and Molecular Pathogenesis, Cinvestav Zacatenco, Mexico City, Mexico
| | - Oscar Medina-Contreras
- Immunology and Proteomics Laboratory, Mexico Children's Hospital Federico Gómez, Mexico City, Mexico
| | - Porfirio Nava
- Department of Physiology, Biophysics and Neurosciences, Cinvestav Zacatenco, Mexico City, Mexico
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Schweitzer F, Tarantelli R, Rayens E, Kling HM, Mattila JT, Norris KA. Monocyte and Alveolar Macrophage Skewing Is Associated with the Development of Pulmonary Arterial Hypertension in a Primate Model of HIV Infection. AIDS Res Hum Retroviruses 2019; 35:63-74. [PMID: 30229666 DOI: 10.1089/aid.2018.0132] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
We investigated the relationship of monocytes, alveolar, and tissue-resident macrophage populations and the development of pulmonary arterial hypertension (PAH) in a nonhuman primate model of HIV infection. A prospective study of simian immunodeficiency virus-associated pulmonary arterial hypertension (SIV-PAH) was done. Rhesus macaques (n = 21) were infected with SIV. Blood, bronchoalveolar lavage fluid (BALF), and lung tissue were analyzed for monocyte and macrophage phenotypes and inflammatory mediators. Serial right heart catheterizations were performed at three time points throughout the study to assess hemodynamic alterations and the development of PAH. All 21 animals showed similar courses of SIV infection with an increasing proinflammatory plasma environment. At 6 months postinfection (mpi), 11 of 21 animals developed SIV-PAH (mPAP ≤25 mmHg; right ventricular systolic pressure [RVSP] ≤36 mmHg). PAH+ animals had an increased frequency of proinflammatory, nonclassical monocytes (CD14dimCD16+) (p = .06) in the peripheral blood and CD14+CCR7-CD163-CD206+ macrophages (p = .04) in BALF compared with PAH- animals at 6 mpi. Increased frequencies of these monocyte and macrophage phenotypes correlated with elevated RVSP (p = .04; p = .03). In addition, PAH+ animals had greater frequencies of tissue resident inflammatory M1-like CD68+STAT1+ (p = .001) and M2a-like CD68+STAT3+ macrophages (p = .003) and a lower frequency of anti-inflammatory M2c-like CD68+STAT6+ macrophages (p = .003) as well as fewer interleukin (IL)-10+ cells (p = .01). The results suggest that HIV-PAH is associated with skewing of monocytes and alveolar macrophages toward a proinflammatory, profibrotic phenotype. Furthermore, PAH+ animals may have diminished capacity to downregulate exaggerated chronic inflammation, as indicated by lower levels of IL-10 in PAH+ animals, contributing to disease progression.
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Affiliation(s)
- Finja Schweitzer
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia
| | - Rebecca Tarantelli
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia
| | - Emily Rayens
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia
| | - Heather M. Kling
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Joshua T. Mattila
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Karen A. Norris
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia
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Vetvicka V, Gover O, Hayby H, Danay O, Ezov N, Hadar Y, Schwartz B. Spatial Distribution of Glucan Type and Content between Caps and Stalks in Pleurotus eryngii: Impact on the Anti-inflammatory Functionality. Int J Mol Sci 2018; 19:ijms19113371. [PMID: 30373293 PMCID: PMC6274982 DOI: 10.3390/ijms19113371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 10/23/2018] [Accepted: 10/26/2018] [Indexed: 01/27/2023] Open
Abstract
: Pleurotus eryngii is recognized for its prominent nutritional and medicinal value. In our study, we tested the effect of glucans on lipopolysaccharide (LPS)-induced production of TNF-α. We demonstrated that glucan extracts are more effective than mill mushroom preparations. Additionally, the effectiveness of stalk-derived glucans were slightly more pronounced than of caps. Cap and stalk glucans from mill or isolated glucan competed dose-dependently with anti-Dectin-and anti-CR-3 antibodies, indicating that they contain β-glucans recognized by these receptors. Using the dextran sulfate sodium (DSS)-inflammatory bowel disease mice model, intestinal inflammatory response to the mill preparations was measured and compared to extracted glucan fractions from caps and stalks. We found that mill and glucan extracts were very effective in downregulating IFN-γ and MIP-2 levels and that stalk-derived preparations were more effective than from caps. The tested glucans were equally effective in regulating the number of CD14/CD16 monocytes and upregulating the levels of fecal-released IgA to almost normal levels. In conclusion, the most effective glucans in ameliorating some IBD-inflammatory associated symptoms induced by DSS treatment in mice were glucan extracts prepared from the stalk of P. eryngii. These spatial distinctions may be helpful in selecting more effective specific anti-inflammatory mushrooms-derived glucans.
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Affiliation(s)
- Vaclav Vetvicka
- University of Louisville, Department of Pathology, University of Louisville, Louisville, KY 40202, USA.
| | - Ofer Gover
- Institute of Biochemistry, School of Nutritional Sciences, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
| | - Hilla Hayby
- Institute of Biochemistry, School of Nutritional Sciences, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
| | - Ofer Danay
- Edible Mushrooms, MIGAL, 11016 Kiryat Shmona, and Tel Hai College, 12210 Upper Galilee, Israel.
| | - Nirit Ezov
- Edible Mushrooms Development, MIGAL, Kiryat Shmona 11016, Israel.
| | - Yitzhak Hadar
- Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
| | - Betty Schwartz
- Institute of Biochemistry, School of Nutritional Sciences, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
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Salvador P, Macías-Ceja DC, Gisbert-Ferrándiz L, Hernández C, Bernardo D, Alós R, Navarro-Vicente F, Esplugues JV, Ortiz-Masiá D, Barrachina MD, Calatayud S. CD16+ Macrophages Mediate Fibrosis in Inflammatory Bowel Disease. J Crohns Colitis 2018; 12:589-599. [PMID: 29304229 DOI: 10.1093/ecco-jcc/jjx185] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 12/29/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Fibrosis is a common complication of Crohn's disease [CD], and is related to dysregulated tissular repair following inflammation, in which macrophages play a central role. We have previously observed that STAT6-/- mice present delayed mucosal recovery after 2,4,6-trinitrobenzenesulfonic acid [TNBS]-induced colitis due to a deficiency in reparatory interleukin-4 [IL4]/STAT6-dependent M2 macrophages, which can be reverted by the exogenous transfer of this cell type. In the present study, we analyse the role of STAT6-dependent macrophages in intestinal fibrosis. METHODS Colitis was induced by weekly intra-rectal administration of TNBS [6 weeks] to STAT6-/- mice and wild-type [WT] animals. Colonic surgical resections were obtained from CD patients and from colon cancer patients. RESULTS Chronic colitis provoked a fibrogenic response in STAT6-/- mice, but not in WT animals. An accumulation of M2 macrophages, defined as CD206+ cells, was observed in WT mice, but not in STAT6-/- animals. Instead, the latter group showed an increase in CD16+ macrophages that correlated with the expression of fibrogenic markers. CD16+ macrophages were also increased in the damaged mucosa of Crohn's disease patients with stenotic or penetrating complications. Finally, administration of IL4-treated WT macrophages to STAT6-/- mice reduced TNBS-induced fibrosis. CONCLUSIONS Our study demonstrates that STAT6 deficiency dysregulates the macrophage response to inflammatory outbursts by increasing the presence of a population of CD16+ macrophages that seems to contribute to intestinal fibrosis.
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Affiliation(s)
- Pedro Salvador
- Departamento de Farmacología and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Facultad de Medicina, Universidad de Valencia, Valencia, Spain
| | | | - Laura Gisbert-Ferrándiz
- Departamento de Farmacología and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Facultad de Medicina, Universidad de Valencia, Valencia, Spain
| | | | - David Bernardo
- Unidad de Gastroenterología, Hospital Universitario de La Princesa and Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Rafael Alós
- Servicio de Cirugía, Hospital de Sagunto, Sagunto, Valencia, Spain
| | | | - Juan Vicente Esplugues
- Departamento de Farmacología and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Facultad de Medicina, Universidad de Valencia, Valencia, Spain
| | - Dolores Ortiz-Masiá
- Departamento de Medicina and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Facultad de Medicina, Universidad de Valencia, Valencia, Spain
| | - Maria Dolores Barrachina
- Departamento de Farmacología and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Facultad de Medicina, Universidad de Valencia, Valencia, Spain
| | - Sara Calatayud
- Departamento de Farmacología and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Facultad de Medicina, Universidad de Valencia, Valencia, Spain
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34
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Aires A, Teixeira MDA, Lau C, Moreira C, Spínola A, Mota A, Freitas I, Coutinho J, Lima M. A pilot study on the usefulness of peripheral blood flow cytometry for the diagnosis of lower risk myelodysplastic syndromes: the "MDS thermometer". BMC HEMATOLOGY 2018; 18:6. [PMID: 29564138 PMCID: PMC5850915 DOI: 10.1186/s12878-018-0101-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 03/01/2018] [Indexed: 12/15/2022]
Abstract
Background Immunophenotypic analysis of the bone marrow (BM) cells has proven to be helpful in the diagnosis of Myelodysplastic Syndromes (MDS). However, the usefulness of flow cytometry (FCM) for the detection of myelodysplasia in the peripheral blood (PB) still needs to be investigated. The aim of this pilot study was to evaluate the value of FCM-based PB neutrophil and monocyte immunophenotyping for the diagnosis of lower risk MDS (LR-MDS). Methods We evaluated by 8-color FCM the expression of multiple cell surface molecules (CD10, CD11b, CD11c, CD13, CD14, CD15, CD16, CD34, CD45, CD56, CD64 and HLA-DR) in PB neutrophils and monocytes from a series of 14 adult LR-MDS patients versus 14 normal individuals. Results Peripheral blood neutrophils from patients with LR-MDS frequently had low forward scatter (FSC) and side scatter (SSC) values and low levels of CD11b, CD11c, CD10, CD16, CD13 and CD45 expression, in that order, as compared to normal neutrophils. In addition, patients with LR-MDS commonly display a higher fraction of CD14+CD56+ and a lower fraction of CD14+CD16+ monocytes in the PB. Based on these results, we proposed an immunophenotyping score based on which PB samples from patients with LR-MDS could be distinguished from normal PB samples with a sensitivity 93% and a specificity of 100%. In addition, we used this score to construct the MDS Thermometer, a screening tool for detection and monitoring of MDS in the PB in clinical practice. Conclusions Peripheral blood neutrophil and monocyte immunophenotyping provide useful information for the diagnosis of LR-MDS, as a complement to cytomorphology. If validated by subsequent studies in larger series of MDS patients and extended to non-MDS patients with cytopenias, our findings may improve the diagnostic assessment and avoid invasive procedures in selected groups of MDS patients. Electronic supplementary material The online version of this article (10.1186/s12878-018-0101-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ana Aires
- 1Department of Hematology, Hospital de Santo António (HSA), Centro Hospitalar do Porto (CHP), Porto, Portugal.,3Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto (ICBAS/UP), Porto, Portugal
| | - Maria Dos Anjos Teixeira
- 1Department of Hematology, Hospital de Santo António (HSA), Centro Hospitalar do Porto (CHP), Porto, Portugal.,4Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal.,Laboratório de Citometria, Serviço de Hematologia, Hospital de Santo António, Centro Hospitalar do Porto, instalações do Ex-CICAP, Rua D. Manuel II, s/n, 4099-001 Porto, Portugal
| | - Catarina Lau
- 1Department of Hematology, Hospital de Santo António (HSA), Centro Hospitalar do Porto (CHP), Porto, Portugal.,4Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal.,Laboratório de Citometria, Serviço de Hematologia, Hospital de Santo António, Centro Hospitalar do Porto, instalações do Ex-CICAP, Rua D. Manuel II, s/n, 4099-001 Porto, Portugal
| | - Cláudia Moreira
- 1Department of Hematology, Hospital de Santo António (HSA), Centro Hospitalar do Porto (CHP), Porto, Portugal
| | - Ana Spínola
- 1Department of Hematology, Hospital de Santo António (HSA), Centro Hospitalar do Porto (CHP), Porto, Portugal
| | - Alexandra Mota
- 1Department of Hematology, Hospital de Santo António (HSA), Centro Hospitalar do Porto (CHP), Porto, Portugal.,3Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto (ICBAS/UP), Porto, Portugal
| | - Inês Freitas
- 2Department of Pathology, Hospital de Santo António (HSA), Centro Hospitalar do Porto (CHP), Porto, Portugal.,4Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
| | - Jorge Coutinho
- 1Department of Hematology, Hospital de Santo António (HSA), Centro Hospitalar do Porto (CHP), Porto, Portugal
| | - Margarida Lima
- 1Department of Hematology, Hospital de Santo António (HSA), Centro Hospitalar do Porto (CHP), Porto, Portugal.,3Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto (ICBAS/UP), Porto, Portugal.,4Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal.,Laboratório de Citometria, Serviço de Hematologia, Hospital de Santo António, Centro Hospitalar do Porto, instalações do Ex-CICAP, Rua D. Manuel II, s/n, 4099-001 Porto, Portugal
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Angelini C, Varano B, Puddu P, Fiori M, Baldassarre A, Masotti A, Gessani S, Conti L. Direct and Intestinal Epithelial Cell-Mediated Effects of TLR8 Triggering on Human Dendritic Cells, CD14 +CD16 + Monocytes and γδ T Lymphocytes. Front Immunol 2018; 8:1813. [PMID: 29312324 PMCID: PMC5743793 DOI: 10.3389/fimmu.2017.01813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 12/01/2017] [Indexed: 01/26/2023] Open
Abstract
Toll-like receptor (TLR)7/8 plays a crucial role in host recognition/response to viruses and its mucosal expression directly correlates with intestinal inflammation. The aim of this study was to investigate the role of TLR7/8 stimulation of intestinal epithelium in shaping the phenotype and functions of innate immunity cell subsets, and to define direct and/or epithelial cell-mediated mechanisms of the TLR7/8 agonist R848 immunomodulatory activity. We describe novel, TLR8-mediated, pro- and anti-inflammatory effects of R848 on ex vivo cultured human blood monocytes and γδ T lymphocytes, either induced by direct immune cell stimulation or mediated by intestinal epithelial cells (IEC). Apical stimulation with R848 led to its transport across normal polarized epithelial cell monolayer and resulted in the inhibition of monocyte differentiation toward immunostimulatory dendritic cells and Th1 type response. Furthermore, γδ T lymphocyte activation was promoted following direct exposure of these cells to the agonist. Conversely, a selective enrichment of the CD14+CD16+ monocyte subpopulation was observed, which required a CCL2-mediated inflammatory response of normal epithelial cells to R848. Of note, a TLR-mediated activation of control γδ T lymphocytes was promoted by inflamed intestinal epithelium from active Crohn's disease patients. This study unravels a novel regulatory mechanism linking the activation of the TLR8 pathway in IEC to the monocyte-mediated inflammatory response, and highlights the capacity of the TLR7/8 agonist R848 to directly enhance the activation of γδ T lymphocytes. Overall these results expand the range of cell targets and immune responses controlled by TLR8 triggering that may contribute to the antiviral response, to chronic inflammation, as well as to the adjuvant activity of TLR8 agonists, highlighting the role of intestinal epithelium microenvironment in shaping TLR agonist-induced responses.
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Affiliation(s)
- Costanza Angelini
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Barbara Varano
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.,Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Patrizia Puddu
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Maurizio Fiori
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
| | | | - Andrea Masotti
- Bambino Gesù Children's Hospital-IRCCS, Research Laboratories, Rome, Italy
| | - Sandra Gessani
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.,Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Lucia Conti
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.,Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
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36
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Involvement of Monocyte Subsets in the Immunopathology of Giant Cell Arteritis. Sci Rep 2017; 7:6553. [PMID: 28747747 PMCID: PMC5529580 DOI: 10.1038/s41598-017-06826-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 06/23/2017] [Indexed: 12/24/2022] Open
Abstract
Monocytes/macrophages are critical in systemic and local inflammation in giant cell arteritis (GCA) and possibly in clinically overlapping polymyalgia rheumatica (PMR). Therefore, we aimed to understand the contribution of monocyte subsets and the CX3CR1-CX3CL1 and CCR2-CCL2 migratory pathways, to the pathology of GCA. Peripheral blood monocytes were enumerated in samples from newly-diagnosed, untreated GCA and PMR patients and after prednisone-induced remission. The distribution of classical (CD14brightCD16neg) and the more pro-inflammatory, intermediate (CD14brightCD16+) and non-classical (CD14dimCD16+) monocyte subsets was analysed by flow cytometry. The phenotype of macrophages in temporal artery biopsies (TABs) from GCA patients was studied by immunohistochemistry and immunofluorescence. A clear monocytosis was seen in newly diagnosed GCA and PMR patients caused by elevated numbers of classical monocytes. Prednisone treatment suppressed numbers of non-classical monocytes. Both chemokine CX3CL1 and CCL2 were highly expressed in the TAB. Most macrophages in the TAB of GCA patients expressed non-classical monocyte markers CD16 and CX3CR1 whereas co-localisation of CD16 with classical monocyte marker CCR2 was infrequent. In conclusion, we report an altered distribution of monocyte subsets in both GCA and PMR patients. The majority of macrophages in TABs of GCA patients were CD68 + CD16 + CX3CR1 + CCR2- and thereby resembled the phenotype of non-classical monocytes.
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37
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Lasitschka F, Giese T, Paparella M, Kurzhals SR, Wabnitz G, Jacob K, Gras J, Bode KA, Heninger AK, Sziskzai T, Samstag Y, Leszinski C, Jocher B, Al-Saeedi M, Meuer SC, Schröder-Braunstein J. Human monocytes downregulate innate response receptors following exposure to the microbial metabolite n-butyrate. IMMUNITY INFLAMMATION AND DISEASE 2017; 5:480-492. [PMID: 28681454 PMCID: PMC5691313 DOI: 10.1002/iid3.184] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 05/26/2017] [Accepted: 06/12/2017] [Indexed: 12/23/2022]
Abstract
Introduction Hyporesponsiveness of human lamina propria immune cells to microbial and nutritional antigens represents one important feature of intestinal homeostasis. It is at least partially mediated by low expression of the innate response receptors CD11b, CD14, CD16 as well as the cystine‐glutamate transporter xCT on these cells. Milieu‐specific mechanisms leading to the down‐regulation of these receptors on circulating monocytes, the precursor cells of resident macrophages, are mostly unknown. Methods Here, we addressed the question whether the short chain fatty acid n‐butyrate, a fermentation product of the mammalian gut microbiota exhibiting histone deacetylase inhibitory activity, is able to modulate expression of these receptors in human circulating monocytes. Results Exposure to n‐butyrate resulted in the downregulation of CD11b, CD14, as well as CD16 surface expression on circulating monocytes. XCT transcript levels in circulating monocytes were also reduced following exposure to n‐butyrate. Importantly, treatment resulted in the downregulation of protein and gene expression of the transcription factor PU.1, which was shown to be at least partially required for the expression of CD16 in circulating monocytes. PU.1 expression in resident macrophages in situ was observed to be substantially lower in healthy when compared to inflamed colonic mucosa. Conclusions In summary, the intestinal microbiota may support symbiosis with the human host organism by n‐butyrate mediated downregulation of protein and gene expression of innate response receptors as well as xCT on circulating monocytes following recruitment to the lamina propria. Downregulation of CD16 gene expression may at least partially be caused at the transcriptional level by the n‐butyrate mediated decrease in expression of the transcription factor PU.1 in circulating monocytes.
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Affiliation(s)
- Felix Lasitschka
- Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany.,Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Thomas Giese
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Marco Paparella
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Stefan R Kurzhals
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Guido Wabnitz
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Katrin Jacob
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Judith Gras
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Konrad A Bode
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University Hospital Heidelberg, Im Neuenheimer Feld 324, 69120, Heidelberg, Germany
| | - Anne-Kristin Heninger
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Timea Sziskzai
- Department of Anesthesiology, University Hospital Heidelberg, Im Neuenheimer Feld 110, 69120, Heidelberg, Germany
| | - Yvonne Samstag
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Cornelia Leszinski
- Department of Surgery, St. Vincentius Hospital, Holzstr. 4a, 67346, Speyer, Germany
| | - Bettina Jocher
- Department of Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 110, 69120, Heidelberg, Germany
| | - Mohammed Al-Saeedi
- Department of Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 110, 69120, Heidelberg, Germany
| | - Stefan C Meuer
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Jutta Schröder-Braunstein
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
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Kim HY, Yoo TH, Hwang Y, Lee GH, Kim B, Jang J, Yu HT, Kim MC, Cho JY, Lee CJ, Kim HC, Park S, Lee WW. Indoxyl sulfate (IS)-mediated immune dysfunction provokes endothelial damage in patients with end-stage renal disease (ESRD). Sci Rep 2017; 7:3057. [PMID: 28596556 PMCID: PMC5465082 DOI: 10.1038/s41598-017-03130-z] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 04/25/2017] [Indexed: 12/19/2022] Open
Abstract
Progressive renal failure causes uremia-related immune dysfunction, which features a chronic inflammatory milieu. Given the central role of end-stage renal disease (ESRD)-related immune dysfunction in the pathogenesis of cardiovascular diseases (CVDs), much attention has been focused on how uremic toxins affect cellular immunity and the mechanisms underlying pathogenesis of atherosclerosis in ESRD patients. Here, we investigated the characteristics of monocytes and CD4+ T cells in ESRD patients and the immune responses induced by indoxyl sulfate (IS), a key uremic toxin, in order to explore the pathogenic effects of these cells on vascular endothelial cells. In ESRD patients, monocytes respond to IS through the aryl hydrocarbon receptor (AhR) and consequently produce increased levels of TNF-α. Upon stimulation with TNF-α, human vascular endothelial cells produce copious amounts of CX3CL1, a chemokine ligand of CX3CR1 that is highly expressed on CD4+CD28-T cells, the predominantly expanded cell type in ESRD patients. A migration assay showed that CD4+CD28- T cells were preferentially recruited by CX3CL1. Moreover, activated CD4+CD28- T cells exhibited cytotoxic capability allowing for the induction of apoptosis in HUVECs. Our findings suggest that in ESRD, IS-mediated immune dysfunction may cause vascular endothelial cell damage and thus, this toxin plays a pivotal role in the pathogenesis of CVD.
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Affiliation(s)
- Hee Young Kim
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Tae-Hyun Yoo
- Division of Nephrology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Yuri Hwang
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea
- BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, South Korea
| | - Ga Hye Lee
- BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, South Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea
| | - Bonah Kim
- BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, South Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea
| | - Jiyeon Jang
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea
| | - Hee Tae Yu
- Division of Cardiology, Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Min Chang Kim
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, South Korea
| | - Joo-Youn Cho
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, South Korea
| | - Chan Joo Lee
- Department of Health Promotion and Disease Prevention, Severance Hospital, Seoul, South Korea
| | - Hyeon Chang Kim
- Cardiovascular and Metabolic Diseases Etiology Research Center and Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sungha Park
- Division of Cardiology, Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea.
| | - Won-Woo Lee
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea.
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea.
- BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, South Korea.
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.
- Ischemic/Hypoxic Disease Institute and Institute of Infectious Diseases, Seoul National University College of Medicine; Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea.
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Chen P, Su B, Zhang T, Zhu X, Xia W, Fu Y, Zhao G, Xia H, Dai L, Sun L, Liu L, Wu H. Perturbations of Monocyte Subsets and Their Association with T Helper Cell Differentiation in Acute and Chronic HIV-1-Infected Patients. Front Immunol 2017; 8:272. [PMID: 28348563 PMCID: PMC5347116 DOI: 10.3389/fimmu.2017.00272] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 02/24/2017] [Indexed: 01/07/2023] Open
Abstract
Monocytes have been recently subdivided into three subsets: classical (CD14++CD16−), intermediate (CD14++CD16+), and non-classical (CD14+CD16++) subsets, but phenotypic and functional abnormalities of the three monocyte subsets in HIV-1 infection have not been fully characterized, especially in acute HIV-1 infection (AHI). In the study, we explored the dynamic changes of monocyte subsets and their surface markers, and the association between monocyte subsets and the IFN-γ, interleukin (IL)-4, IL-17, and TNF-α producing CD4+ T cells in acute and chronic HIV-1-infected patients. We found that, in the acute HIV-1-infected individuals, the frequency of the intermediate CD14++CD16+ monocyte subsets, the CD163 density and HLA-DR density on intermediate CD14++CD16+ monocytes, and plasma soluble form of CD163 (sCD163) were significantly higher than that in healthy controls. Intermediate CD14++CD16+ monocyte subsets and their HLA-DR expression levels were inversely correlated with the CD4+ T cell counts, and the intermediate CD14++CD16+ monocytes were positively correlated with plasma sCD163. In contrast to the non-classical CD14+CD16++ and classical CD14++CD16− monocyte subsets, the frequency of the intermediate CD14++CD16+ monocytes was positively associated with the frequency of IFN-γ and IL-4 producing CD4+ T cells in HIV-1-infected patients. Taken together, our observations provide new insight into the roles of the monocyte subsets in HIV pathogenesis, particularly during AHI, and our findings may be helpful for the treatment of HIV-related immune activation.
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Affiliation(s)
- Peng Chen
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - Bin Su
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - Tong Zhang
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - Xiaojing Zhu
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - Wei Xia
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University , Beijing , China
| | - Yan Fu
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University , Beijing , China
| | - Guoxian Zhao
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - Huan Xia
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - Lili Dai
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University , Beijing , China
| | - Lijun Sun
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University , Beijing , China
| | - Lifeng Liu
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - Hao Wu
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
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Ono Y, Kanmura S, Morinaga Y, Oda K, Kawabata K, Arima S, Sasaki F, Nasu Y, Tanoue S, Hashimoto S, Taguchi H, Uto H, Tsubouchi H, Ido A. The utility of apoptosis inhibitor of macrophages as a possible diagnostic marker in patients with Crohn's disease. BMC Gastroenterol 2017; 17:40. [PMID: 28284201 PMCID: PMC5346245 DOI: 10.1186/s12876-017-0591-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 02/25/2017] [Indexed: 01/14/2023] Open
Abstract
Background Apoptosis inhibitor of macrophages (AIM) was initially identified as an apoptosis inhibitor that supports the survival of macrophages against various apoptosis-inducing stimuli, and AIM produced by macrophages may contribute to the pathogenesis of inflammatory bowel diseases (IBDs). However, there have been no reports on the kinetics of AIM in IBD and the impact of AIM on the pathogenesis of IBD. In this study, we aimed to investigate the diagnostic utility of levels of AIM and their correlation with the activity of Crohn’s disease (CD) and IBD. Methods We used an enzyme-linked immunosorbent assay (ELISA) to examine AIM serum levels in 16 healthy subjects and 90 patients with inflammatory bowel diseases, namely 39 with CD and 51 with ulcerative colitis (UC), as well as 17 patients with Behcet’s disease (BD) as intestinal disease controls. We compared serum AIM levels among groups and examined whether there were correlations between serum AIM levels and disease activity and type. We also performed immunohistochemical staining of AIM in intestinal tissues of patients with CD. Results Serum AIM levels were significantly higher in patients with CD than in patients with UC, BD, and controls (3.27 ± 2.14, 1.88 ± 1.43, 2.34 ± 1.37, and 2.13 ± 0.64 μg/ml, respectively; P < 0.01). There was no difference in serum AIM levels before and after treatment in patients with CD. However, in these patients the diagnostic rate using AIM was better than that based on anti-Saccharomyces cerevisiae antibodies. AIM was expressed in macrophages that were positive for CD14, CD16, or both in the intestinal tissues of patients with CD. Conclusions AIM is a novel biomarker of CD that can distinguish CD from UC or BD. It is suggested that AIM may contribute to intestinal inflammation by inhibiting the apoptosis of macrophages.
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Affiliation(s)
- Yohei Ono
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Shuji Kanmura
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan.
| | - Yuko Morinaga
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Kohei Oda
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Katsuto Kawabata
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Shiho Arima
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Fumisato Sasaki
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Yuichirou Nasu
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Shiroh Tanoue
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Shinichi Hashimoto
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Hiroki Taguchi
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Hirofumi Uto
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan.,Center for Digestive and Liver Diseases, Miyazaki Medical Center Hospital, Miyazaki, Japan
| | | | - Akio Ido
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
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Kelly A, Houston SA, Sherwood E, Casulli J, Travis MA. Regulation of Innate and Adaptive Immunity by TGFβ. Adv Immunol 2017; 134:137-233. [PMID: 28413021 DOI: 10.1016/bs.ai.2017.01.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Immune regulation by cytokines is crucial in maintaining immune homeostasis, promoting responses to infection, resolving inflammation, and promoting immunological memory. Additionally, cytokine responses drive pathology in immune-mediated disease. A crucial cytokine in the regulation of all aspects of an immune response is transforming growth factor beta (TGFβ). Although best known as a crucial regulator of T cell responses, TGFβ plays a vital role in regulating responses mediated by virtually every innate and adaptive immune cell, including dendritic cells, B cells, NK cells, innate lymphoid cells, and granulocytes. Here, we review our current knowledge of how TGFβ regulates the immune system, highlighting the multifunctional nature of TGFβ and how its function can change depending on location and context of action.
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Affiliation(s)
- Aoife Kelly
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Stephanie A Houston
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Eleanor Sherwood
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Joshua Casulli
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Mark A Travis
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom.
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Abstract
BACKGROUND Infliximab (IFX), an anti-tumour necrosis factor alpha (TNFα) monoclonal antibody, provides clinical benefits in treating Crohn's disease (CD) but its mechanisms of action are not fully elucidated. This study investigated blood monocyte repertoires and the acute effects of IFX infusion on monocyte subset phenotype and function in IFX-treated patients with CD. METHODS Monocytes and monocyte subsets were enumerated and phenotypically characterized by multicolor flow cytometry in freshly isolated blood from healthy controls (n = 21) and patients with CD treated with (IFX, n = 24) and without (non-IFX, n = 20) IFX. For the IFX-CD group, blood was sampled immediately before (tough-IFX) and after (peak-IFX) infusion. Monocyte responses to lipopolysaccharide were analyzed by whole-blood intracellular cytokine staining. RESULTS Non-IFX and IFX-CD patients had increased numbers of intermediate (CD14CD16) monocytes compared with healthy controls, whereas classical (CD14CD16) and nonclassical (CD14CD16) monocytes were numerically reduced in the IFX-CD group alone. In all groups, monocyte subsets expressed high surface levels of transmembrane (tm)TNFα. After IFX infusion, a significant reduction in monocyte numbers occurred. Post-IFX monocytopenia was proportionately greatest for classical and intermediate subsets, correlated with postinfusion IFX levels and was not associated with monocyte apoptosis. In contrast, lipopolysaccharide-induced production of TNFα and IL-12 by monocytes was significantly reduced in peak-IFX compared with trough-IFX blood samples. CONCLUSIONS Actively managed CD is associated with monocyte repertoire skewing suggestive of chronic inflammatory stimulation. Infused IFX acutely targets monocytes, likely by binding to tmTNFα, resulting in a non-apoptosis-related decline in circulating monocyte numbers and blunting of the inflammatory response of monocytes remaining in the blood.
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Zwicker S, Bureik D, Bosma M, Martinez GL, Almer S, Boström EA. Receptor-Type Protein-Tyrosine Phosphatase ζ and Colony Stimulating Factor-1 Receptor in the Intestine: Cellular Expression and Cytokine- and Chemokine Responses by Interleukin-34 and Colony Stimulating Factor-1. PLoS One 2016; 11:e0167324. [PMID: 27898738 PMCID: PMC5127567 DOI: 10.1371/journal.pone.0167324] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 11/12/2016] [Indexed: 12/13/2022] Open
Abstract
Differential intestinal expression of the macrophage growth factors colony stimulating factor-1 (CSF-1), interleukin (IL)-34, and their shared CSF-1 receptor (CSF-1R) in inflammatory bowel disease (IBD) has been shown. Diverse expression between CSF-1 and IL-34, suggest that IL-34 may signal via an alternate receptor. Receptor-type protein-tyrosine phosphatase ζ (PTPRZ1, RPTP-ζ), an additional IL-34 receptor, was recently identified. Here, we aimed to assess PTPRZ1 expression in IBD and non-IBD intestinal biopsies. Further, we aimed to investigate cellular PTPRZ1 and CSF-1R expression, and cytokine- and chemokine responses by IL-34 and CSF-1. The expression of PTPRZ1 was higher in non-IBD colon compared to ileum. PTPRZ1 expression was not altered with inflammation in IBD, however, correlated to IL34, CSF1, and CSF1R. The expression patterns of PTPRZ1 and CSF-1R differed in peripheral blood mononuclear cells (PBMCs), monocytes, macrophages, and intestinal epithelial cell line. PBMCs and monocytes of the same donors responded differently to IL-34 and CSF-1 with altered expression of tumor-necrosis factor α (TNF-α), IL-1β, interferon γ (IFN-γ), IL-13, IL-8, and monocyte chemotactic protein-1 (MCP-1) levels. This study shows that PTPRZ1 was expressed in bowel tissue. Furthermore, CSF-1R protein was detected in an intestinal epithelial cell line and donor dependently in primary PBMCs, monocytes, and macrophages, and first hints also suggest an expression in these cells for PTPRZ1, which may mediate IL-34 and CSF-1 actions.
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Affiliation(s)
- Stephanie Zwicker
- Department of Dental Medicine, Division of Periodontology, Karolinska Institutet, Huddinge, Sweden
| | - Daniela Bureik
- Department of Dental Medicine, Division of Periodontology, Karolinska Institutet, Huddinge, Sweden
| | - Madeleen Bosma
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Gisele Lago Martinez
- Department of Dental Medicine, Division of Periodontology, Karolinska Institutet, Huddinge, Sweden
| | - Sven Almer
- Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
- GastroCentrum, Karolinska University Hospital, Solna, Stockholm, Sweden
| | - Elisabeth A. Boström
- Department of Dental Medicine, Division of Periodontology, Karolinska Institutet, Huddinge, Sweden
- * E-mail:
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Colonic Lamina Propria Inflammatory Cells from Patients with IBD Induce the Nuclear Factor-E2 Related Factor-2 Thereby Leading to Greater Proteasome Activity and Apoptosis Protection in Human Colonocytes. Inflamm Bowel Dis 2016; 22:2593-2606. [PMID: 27661668 DOI: 10.1097/mib.0000000000000925] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND The antioxidant transcription factor Nrf2 confers broad cytoprotection and has a dual role in tumorigenesis. Enhancing proteasome activity is one mechanism by which Nrf2 can promote cancer development, e.g., colorectal cancer. This study investigated whether this potential oncogenic effect of Nrf2 emerges already from the epithelial adaptation to persistent oxidative stress during inflammatory bowel disease (IBD). METHODS Reactive oxygen species (ROS)-producing inflammatory myeloid cells (IMCs) from colon tissue of patients with IBD were cocultured with human NCM460 colonocytes. ARE-luciferase-, c-H2DCF-DA-assays, Western blotting, and quantitative polymerase chain reaction were performed for assessing Nrf2-activity, intracellular ROS-level, and Nrf2-target gene expression. Proteasome activity was quantified by Suc-LLVY-amido-4-methylcumarin-assay, and apoptosis by caspase-3/-7 assay and PARP1-Western blots. Nrf2, proteasome proteins, and IMCs were analyzed in IBD-tissues by immunohistochemistry. RESULTS IMC-coculture caused a temporary increase of ROS in NCM460, followed by Nrf2 activation and elevated expression of ROS-protecting enzymes (NQO1, GCLC). This was accompanied by Nrf2-dependent expression of proteasome proteins (PSMD4, PSMA5) and an enhanced proteasome activity in IMC-cocultured NCM460. Nrf2-siRNA or the ROS-scavenger Tiron blocked these alterations. Depending on Nrf2-induced proteasome activity, IMC-cocultured NCM460 or Colo320 cancer cells were less sensitive to apoptosis (TRAIL-/etoposide induced). Immunostaining of IBD-tissues confirmed Nrf2 activation in the colonic epithelium within inflamed areas, along with greater proteasome protein expression. CONCLUSIONS IMC/NCM460-coculture experiments and immunohistochemistry of colonic tissues from patients with IBD reveal a Nrf2-dependent adaptation of colon epithelial cells to oxidative stress caused by inflammatory cells. This involves increased proteasome activity and apoptosis resistance that protect from tissue damage due to colitis on one hand, but on the other hand, may favor carcinogenesis.
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Gaur P, Myles A, Misra R, Aggarwal A. Intermediate monocytes are increased in enthesitis-related arthritis, a category of juvenile idiopathic arthritis. Clin Exp Immunol 2016; 187:234-241. [PMID: 27706807 DOI: 10.1111/cei.12880] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/27/2016] [Indexed: 01/06/2023] Open
Abstract
Microarray of peripheral blood (PB) and synovial fluid mononuclear cells (PBMC, SFMC) of patients with juvenile idiopathic arthritis-enthesitis-related arthritis (JIA-ERA) has shown the involvement of monocytes. On the basis of CD14 and CD16 expression, monocytes are classified as classical, intermediate and non-classical. In response to Toll-like receptor (TLR) stimulation, intermediate monocytes produce proinflammatory cytokines and play a role in inflammatory diseases. Therefore, we have studied the microarray profile of monocytes, the frequency of their subsets and cytokine production. Monocyte-specific microarray analysis was performed in six healthy controls' PBMC and six patients' PBMC and SFMC using Illumina chips WG12. Monocyte subsets were assessed in 46 patients with JIA-ERA and 17 healthy controls and 17 disease controls by flow cytometry. Interleukin (IL)-23 and tumour necrosis factor (TNF) levels were measured in culture supernatants of eight controls and seven patients' PBMC/SFMC with/without lipopolysaccharide (LPS) stimulation. Cytokine-producing intermediate monocytes were assessed by flow cytometry. Genes related to antigen presentation, cytokine signalling and TLR pathway were regulated differentially in PB and synovial monocytes of patients with JIA-ERA. Key genes of intermediate monocytes, such as CLEC10A and MARCO, were expressed three- to fourfold more in JIA-ERA. In PB, the frequency of intermediate monocytes was significantly higher in JIA-ERA (4·90% ± 3·5) compared to controls (1·8% ± 1·06; P < 0·001). Patients' synovial cells also had more intermediate monocytes compared to PB (11·25% ± 11·32, 5·9% ± 4·8; P = 0.004). Intermediate monocytes are the major producers of IL-23. Thus, intermediate monocytes may play an important role in JIA-ERA, possibly by producing cytokines, and contribute to joint inflammation.
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Affiliation(s)
- P Gaur
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - A Myles
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - R Misra
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - A Aggarwal
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Ang Z, Er JZ, Tan NS, Lu J, Liou YC, Grosse J, Ding JL. Human and mouse monocytes display distinct signalling and cytokine profiles upon stimulation with FFAR2/FFAR3 short-chain fatty acid receptor agonists. Sci Rep 2016; 6:34145. [PMID: 27667443 PMCID: PMC5036191 DOI: 10.1038/srep34145] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 09/08/2016] [Indexed: 02/07/2023] Open
Abstract
Knockout mice studies implicate the mammalian short-chain fatty acid (SCFA) receptors, FFAR2 and FFAR3- in colitis, arthritis and asthma. However, the correlation with human biology is uncertain. Here, we detected FFAR2 and FFAR3 expression in human monocytes via immunohistochemistry. Upon treatment with acetate SCFA or FFAR2- and FFAR3-specific synthetic agonists, human monocytes displayed elevated p38 phosphorylation and attenuated C5, CCL1, CCL2, GM-CSF, IL-1α, IL-1β and ICAM-1 inflammatory cytokine expression. Acetate and FFAR2 agonist treatment also repressed Akt and ERK2 signalling. Surprisingly, mouse monocytes displayed a distinct response to acetate treatment, elevating GM-CSF, IL-1α, and IL-1β cytokine expression. This effect persisted in FFAR2/3-knockout mouse monocytes and was not reproduced by synthetic agonists, suggesting a FFAR2/3 independent mechanism in mice. Collectively, we show that SCFAs act via FFAR2/3 to modulate human monocyte inflammatory responses- a pathway that is absent in mouse monocytes.
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Affiliation(s)
- Zhiwei Ang
- NUS graduate School for Integrative Science and Engineering, National University of Singapore, 117543 Singapore
| | - Jun Zhi Er
- NUS graduate School for Integrative Science and Engineering, National University of Singapore, 117543 Singapore
| | - Nguan Soon Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, 637511, Singapore.,Institute of Molecular and Cell Biology, 61 Biopolis Drive, Proteos, 138673 Singapore
| | - Jinhua Lu
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, 117597 Singapore
| | - Yih-Cherng Liou
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543 Singapore
| | - Johannes Grosse
- Takeda Cambridge Limited, 418 Cambridge Science Park, Milton Road, Cambridge, CB4 0PA, UK
| | - Jeak Ling Ding
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543 Singapore
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Abstract
Monocytes and macrophages are part of the body's first line of defence, eliminating pathogens by phagocytosis or by releasing a broad array of inflammatory mediators, such as cytokines, chemokines, and proteases. In humans, 3 subsets of monocytes are described in blood with seemingly different functions, the classical (CD14CD16) monocytes, the intermediate (CD14CD16) monocytes, and the nonclassical (CD14CD16) monocytes. In the intestine, macrophages can be divided into resident and inflammatory macrophages that are distinguished by low and high expression of CD14, respectively. However, the roles and function of the 3 monocyte subsets in health and disease are not fully understood. In this review, we describe what is known about the origin of human intestinal macrophages and their blood monocytic counterparts and many of their numerous distinct mechanisms influencing the intestinal immune system.
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48
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O'Dwyer AM, Lajczak NK, Keyes JA, Ward JB, Greene CM, Keely SJ. Ursodeoxycholic acid inhibits TNFα-induced IL-8 release from monocytes. Am J Physiol Gastrointest Liver Physiol 2016; 311:G334-41. [PMID: 27340129 DOI: 10.1152/ajpgi.00406.2015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 06/20/2016] [Indexed: 01/31/2023]
Abstract
Monocytes are critical to the pathogenesis of inflammatory bowel disease (IBD) as they infiltrate the mucosa and release cytokines that drive the inflammatory response. Ursodeoxycholic acid (UDCA), a naturally occurring bile acid with anti-inflammatory actions, has been proposed as a potential new therapy for IBD. However, its effects on monocyte function are not yet known. Primary monocytes from healthy volunteers or cultured U937 monocytes were treated with either the proinflammatory cytokine, TNFα (5 ng/ml) or the bacterial endotoxin, lipopolysaccharide (LPS; 1 μg/ml) for 24 h, in the absence or presence of UDCA (25-100 μM). IL-8 release into the supernatant was measured by ELISA. mRNA levels were quantified by qPCR and changes in cell signaling proteins were determined by Western blotting. Toxicity was assessed by measuring lactate dehydrogenase (LDH) release. UDCA treatment significantly attenuated TNFα-, but not LPS-driven, release of IL-8 from both primary and cultured monocytes. UDCA inhibition of TNFα-driven responses was associated with reduced IL-8 mRNA expression. Both TNFα and LPS stimulated NFκB activation in monocytes, while IL-8 release in response to both cytokines was attenuated by an NFκB inhibitor, BMS-345541. Interestingly, UDCA inhibited TNFα-, but not LPS-stimulated, NFκB activation. Finally, TNFα, but not LPS, induced phosphorylation of TNF receptor associated factor (TRAF2), while UDCA cotreatment attenuated this response. We conclude that UDCA specifically inhibits TNFα-induced IL-8 release from monocytes by inhibiting TRAF2 activation. Since such actions would serve to dampen mucosal immune responses in vivo, our data support the therapeutic potential of UDCA for IBD.
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Affiliation(s)
- Aoife M O'Dwyer
- Department of Molecular Medicine, Royal College of Surgeons in Ireland, Education & Research Centre, Beaumont Hospital, Dublin, Ireland; and
| | - Natalia K Lajczak
- Department of Molecular Medicine, Royal College of Surgeons in Ireland, Education & Research Centre, Beaumont Hospital, Dublin, Ireland; and
| | - Jennifer A Keyes
- Department of Molecular Medicine, Royal College of Surgeons in Ireland, Education & Research Centre, Beaumont Hospital, Dublin, Ireland; and
| | - Joseph B Ward
- Department of Molecular Medicine, Royal College of Surgeons in Ireland, Education & Research Centre, Beaumont Hospital, Dublin, Ireland; and
| | - Catherine M Greene
- Department of Medicine, Royal College of Surgeons in Ireland, Education & Research Centre, Beaumont Hospital, Dublin, Ireland
| | - Stephen J Keely
- Department of Molecular Medicine, Royal College of Surgeons in Ireland, Education & Research Centre, Beaumont Hospital, Dublin, Ireland; and
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49
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Yang Y, Zhang X, Zhang D, Li H, Ma L, Xuan M, Wang H, Yang R. Abnormal Distribution and Function of Monocyte Subsets in Patients With Primary Immune Thrombocytopenia. Clin Appl Thromb Hemost 2016; 23:786-792. [PMID: 27329949 DOI: 10.1177/1076029616652726] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Human monocytes are heterogeneous and play an important role in autoimmune diseases. However, the distribution and function of monocyte subsets remain unclear in primary immune thrombocytopenia (ITP). In this study, we determined the frequencies of monocyte subsets in 71 untreated patients with active ITP and 49 healthy controls by flow cytometry. Compared with controls, the frequency of nonclassical monocytes was significantly increased in patients with active ITP but decreased after complete remission. The intermediate subset was also increased in patients with active ITP and produced the highest levels of tumor necrosis factor α and interleukin 1β. Both the nonclassical and intermediate subsets were negatively correlated with the platelet counts. We further determined the correlation between monocyte subsets and the proliferation of platelet-autoreactive T cells. The purified monocyte subsets were cocultured with CD4+ T cells and autologous platelets. The nonclassical subset showed the highest capability of promoting platelet reactive T-cell proliferation and significantly promoted the secretion of interferon γ among the 3 subsets. In conclusion, the nonclassical and intermediate monocyte subsets are both expanded and play different roles in the pathogenesis of ITP.
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Affiliation(s)
- Yanhui Yang
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Xian Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Donglei Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Huiyuan Li
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Li Ma
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Min Xuan
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Hongmei Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Renchi Yang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
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50
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Masek‐Hammerman K, Peeva E, Ahmad A, Menon S, Afsharvand M, Peng Qu R, Cheng JB, Syed J, Zhan Y, O'Neil SP, Pleasic‐Williams S, Cox L, Beidler D. Monoclonal antibody against macrophage colony-stimulating factor suppresses circulating monocytes and tissue macrophage function but does not alter cell infiltration/activation in cutaneous lesions or clinical outcomes in patients with cutaneous lupus erythematosus. Clin Exp Immunol 2016; 183:258-70. [PMID: 26376111 PMCID: PMC4711167 DOI: 10.1111/cei.12705] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2015] [Indexed: 01/31/2023] Open
Abstract
This study's objective was to assess the effects of PD-0360324, a fully human immunoglobulin G2 monoclonal antibody against macrophage colony-stimulating factor in cutaneous lupus erythematosus (CLE). Patients with active subacute CLE or discoid lupus erythematosus were randomized to receive 100 or 150 mg PD-0360324 or placebo via intravenous infusion every 2 weeks for 3 months. Blood and urine samples were obtained pre- and post-treatment to analyse pharmacokinetics and pharmacodynamic changes in CD14(+) CD16(+) monocytes, urinary N-terminal telopeptide (uNTX), alanine/aspartate aminotransferases (ALT/AST) and creatine kinase (CK); tissue biopsy samples were taken to evaluate macrophage populations and T cells using immunohistochemistry. Clinical efficacy assessments included the Cutaneous Lupus Erythematosus Disease Area and Severity Index (CLASI). Among 28 randomized/analysed patients, peak/trough plasma concentrations increased in a greater-than-dose-proportional manner with dose increases from 100 to 150 mg. Statistically significant differences were observed between active treatment and placebo groups in changes from baseline in CD14(+) CD16(+) cells, uNTX, ALT, AST and CK levels at most time-points. The numbers, density and activation states of tissue macrophages and T cells did not change from baseline to treatment end. No between-group differences were seen in CLASI. Patients receiving PD-0360324 reported significantly more adverse events than those receiving placebo, but no serious adverse events. In patients with CLE, 100 and 150 mg PD-0360324 every 2 weeks for 3 months suppressed a subset of circulating monocytes and altered activity of some tissue macrophages without affecting cell populations in CLE skin lesions or improving clinical end-points.
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Affiliation(s)
| | - E. Peeva
- PharmaTherapeutics Clinical Research and Development, PfizerCambridgeMAUSA
| | - A. Ahmad
- PharmaTherapeutics Clinical Research and Development, PfizerCambridgeMAUSA
| | - S. Menon
- PharmaTherapeutics Clinical Research and Development, PfizerCambridgeMAUSA
| | - M. Afsharvand
- PharmaTherapeutics Clinical Research and Development, PfizerCambridgeMAUSA
| | - R. Peng Qu
- Pfizer China Research and Development Center, ShanghaiChina
| | - J. B. Cheng
- PDM‐NCE Regulated Bioanalytical Group, PfizerGrotonCTUSA
| | - J. Syed
- Drug Safety Research and Development, PfizerAndoverMAUSA
| | - Y. Zhan
- Drug Safety Research and Development, PfizerAndoverMAUSA
| | - S. P. O'Neil
- Drug Safety Research and Development, PfizerAndoverMAUSA
| | | | - L.A. Cox
- PharmaTherapeutics Clinical Research and Development, PfizerCollegevillePAUSA
| | - D. Beidler
- PharmaTherapeutics Clinical Research and Development, PfizerCambridgeMAUSA
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