1
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Alarcon PC, Damen MSMA, Ulanowicz CJ, Sawada K, Oates JR, Toth A, Wayland JL, Chung H, Stankiewicz TE, Moreno-Fernandez ME, Szabo S, Zacharias WJ, Divanovic S. Obesity amplifies influenza virus-driven disease severity in male and female mice. Mucosal Immunol 2023; 16:843-858. [PMID: 37730122 PMCID: PMC10842771 DOI: 10.1016/j.mucimm.2023.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 08/18/2023] [Accepted: 09/13/2023] [Indexed: 09/22/2023]
Abstract
Influenza virus-induced respiratory pneumonia remains a major public health concern. Obesity, metabolic diseases, and female sex are viewed as independent risk factors for worsened influenza virus-induced lung disease severity. However, lack of experimental models of severe obesity in female mice limits discovery-based studies. Here, via utility of thermoneutral housing (30 °C) and high-fat diet (HFD) feeding, we induced severe obesity and metabolic disease in female C57BL/6 mice and compared their responses to severely obese male C57BL/6 counterparts during influenza virus infection. We show that lean male and female mice have similar lung edema, inflammation, and immune cell infiltration during influenza virus infection. At standard housing conditions, HFD-fed male, but not female, mice exhibit severe obesity, metabolic disease, and exacerbated influenza disease severity. However, combining thermoneutral housing and HFD feeding in female mice induces severe obesity and metabolic disease, which is sufficient to amplify influenza virus-driven disease severity to a level comparable to severely obese male counterparts. Lastly, increased total body weights of male and female mice at time of infection correlated with worsened influenza virus-driven disease severity metrics. Together, our findings confirm the impact of obesity and metabolic disease as key risk factors to influenza disease severity and present a novel mouse experimental model suitable for future mechanistic interrogation of sex, obesity, and metabolic disease traits in influenza virus-driven disease severity.
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Affiliation(s)
- Pablo C Alarcon
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Michelle S M A Damen
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Cassidy J Ulanowicz
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Keisuke Sawada
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jarren R Oates
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Molecular and Developmental Biology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Andrea Toth
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Molecular and Developmental Biology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jennifer L Wayland
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Hak Chung
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Traci E Stankiewicz
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Gastroenterology, Hepatology and Nutrition Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sara Szabo
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Pathology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - William J Zacharias
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Molecular and Developmental Biology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
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2
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Wayland JL, Doll JR, Lawson MJ, Stankiewicz TE, Oates JR, Sawada K, Damen MSMA, Alarcon PC, Haslam DB, Trout AT, DeFranco EA, Klepper CM, Woo JG, Moreno-Fernandez ME, Mouzaki M, Divanovic S. Thermoneutral Housing Enables Studies of Vertical Transmission of Obesogenic Diet-Driven Metabolic Diseases. Nutrients 2023; 15:4958. [PMID: 38068816 PMCID: PMC10708424 DOI: 10.3390/nu15234958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 11/19/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Vertical transmission of obesity is a critical contributor to the unabated obesity pandemic and the associated surge in metabolic diseases. Existing experimental models insufficiently recapitulate "human-like" obesity phenotypes, limiting the discovery of how severe obesity in pregnancy instructs vertical transmission of obesity. Here, via utility of thermoneutral housing and obesogenic diet feeding coupled to syngeneic mating of WT obese female and lean male mice on a C57BL/6 background, we present a tractable, more "human-like" approach to specifically investigate how maternal obesity contributes to offspring health. Using this model, we found that maternal obesity decreased neonatal survival, increased offspring adiposity, and accelerated offspring predisposition to obesity and metabolic disease. We also show that severe maternal obesity was sufficient to skew offspring microbiome and create a proinflammatory gestational environment that correlated with inflammatory changes in the offspring in utero and adulthood. Analysis of a human birth cohort study of mothers with and without obesity and their infants was consistent with mouse study findings of maternal inflammation and offspring weight gain propensity. Together, our results show that dietary induction of obesity in female mice coupled to thermoneutral housing can be used for future mechanistic interrogations of obesity and metabolic disease in pregnancy and vertical transmission of pathogenic traits.
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Affiliation(s)
- Jennifer L. Wayland
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Jessica R. Doll
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Matthew J. Lawson
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Traci E. Stankiewicz
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Jarren R. Oates
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Keisuke Sawada
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Michelle S. M. A. Damen
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Pablo C. Alarcon
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - David B. Haslam
- Division of Infectious Diseases, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Andrew T. Trout
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Emily A. DeFranco
- Department of Obstetrics and Gynecology, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Corie M. Klepper
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Jessica G. Woo
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Maria E. Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Marialena Mouzaki
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Senad Divanovic
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
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3
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Sawada K, Chung H, Softic S, Moreno-Fernandez ME, Divanovic S. The bidirectional immune crosstalk in metabolic dysfunction-associated steatotic liver disease. Cell Metab 2023; 35:1852-1871. [PMID: 37939656 PMCID: PMC10680147 DOI: 10.1016/j.cmet.2023.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 10/13/2023] [Accepted: 10/13/2023] [Indexed: 11/10/2023]
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) is an unabated risk factor for end-stage liver diseases with no available therapies. Dysregulated immune responses are critical culprits of MASLD pathogenesis. Independent contributions from either the innate or adaptive arms of the immune system or their unidirectional interplay are commonly studied in MASLD. However, the bidirectional communication between innate and adaptive immune systems and its impact on MASLD remain insufficiently understood. Given that both innate and adaptive immune cells are indispensable for the development and progression of inflammation in MASLD, elucidating pathogenic contributions stemming from the bidirectional interplay between these two arms holds potential for development of novel therapeutics for MASLD. Here, we review the immune cell types and bidirectional pathways that influence the pathogenesis of MASLD and highlight potential pharmacologic approaches to combat MASLD based on current knowledge of this bidirectional crosstalk.
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Affiliation(s)
- Keisuke Sawada
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Hak Chung
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Samir Softic
- Department of Pediatrics and Gastroenterology, University of Kentucky, Lexington, KY 40536, USA; Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
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4
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Doll JR, Moreno-Fernandez ME, Stankiewicz TE, Wayland JL, Wilburn A, Weinhaus B, Chougnet CA, Giordano D, Cappelletti M, Presicce P, Kallapur SG, Salomonis N, Tilburgs T, Divanovic S. BAFF and APRIL counterregulate susceptibility to inflammation-induced preterm birth. Cell Rep 2023; 42:112352. [PMID: 37027297 PMCID: PMC10551044 DOI: 10.1016/j.celrep.2023.112352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/10/2023] [Accepted: 03/20/2023] [Indexed: 04/08/2023] Open
Abstract
Clinical evidence points to a function for B cell-activating factor (BAFF) in pregnancy. However, direct roles for BAFF-axis members in pregnancy have not been examined. Here, via utility of genetically modified mice, we report that BAFF promotes inflammatory responsiveness and increases susceptibility to inflammation-induced preterm birth (PTB). In contrast, we show that the closely related A proliferation-inducing ligand (APRIL) decreases inflammatory responsiveness and susceptibility to PTB. Known BAFF-axis receptors serve a redundant function in signaling BAFF/APRIL presence in pregnancy. Treatment with anti-BAFF/APRIL monoclonal antibodies or BAFF/APRIL recombinant proteins is sufficient to manipulate susceptibility to PTB. Notably, macrophages at the maternal-fetal interface produce BAFF, while BAFF and APRIL presence divergently shape macrophage gene expression and inflammatory function. Overall, our findings demonstrate that BAFF and APRIL play divergent inflammatory roles in pregnancy and provide therapeutic targets for mitigating risk of inflammation-induced PTB.
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Affiliation(s)
- Jessica R Doll
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Traci E Stankiewicz
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Jennifer L Wayland
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Adrienne Wilburn
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Benjamin Weinhaus
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Claire A Chougnet
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Daniela Giordano
- Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA 98195, USA
| | - Monica Cappelletti
- Division of Neonatology and Developmental Biology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Pietro Presicce
- Division of Neonatology and Developmental Biology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Suhas G Kallapur
- Division of Neonatology and Developmental Biology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Nathan Salomonis
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Tamara Tilburgs
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
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5
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Oates JR, Sawada K, Giles DA, Alarcon PC, Damen MS, Szabo S, Stankiewicz TE, Moreno-Fernandez ME, Divanovic S. Thermoneutral housing shapes hepatic inflammation and damage in mouse models of non-alcoholic fatty liver disease. Front Immunol 2023; 14:1095132. [PMID: 36875069 PMCID: PMC9982161 DOI: 10.3389/fimmu.2023.1095132] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/27/2023] [Indexed: 02/19/2023] Open
Abstract
Introduction Inflammation is a common unifying factor in experimental models of non-alcoholic fatty liver disease (NAFLD) progression. Recent evidence suggests that housing temperature-driven alterations in hepatic inflammation correlate with exacerbated hepatic steatosis, development of hepatic fibrosis, and hepatocellular damage in a model of high fat diet-driven NAFLD. However, the congruency of these findings across other, frequently employed, experimental mouse models of NAFLD has not been studied. Methods Here, we examine the impact of housing temperature on steatosis, hepatocellular damage, hepatic inflammation, and fibrosis in NASH diet, methionine and choline deficient diet, and western diet + carbon tetrachloride experimental models of NAFLD in C57BL/6 mice. Results We show that differences relevant to NAFLD pathology uncovered by thermoneutral housing include: (i) augmented NASH diet-driven hepatic immune cell accrual, exacerbated serum alanine transaminase levels and increased liver tissue damage as determined by NAFLD activity score; (ii) augmented methionine choline deficient diet-driven hepatic immune cell accrual and increased liver tissue damage as indicated by amplified hepatocellular ballooning, lobular inflammation, fibrosis and overall NAFLD activity score; and (iii) dampened western diet + carbon tetrachloride driven hepatic immune cell accrual and serum alanine aminotransferase levels but similar NAFLD activity score. Discussion Collectively, our findings demonstrate that thermoneutral housing has broad but divergent effects on hepatic immune cell inflammation and hepatocellular damage across existing experimental NAFLD models in mice. These insights may serve as a foundation for future mechanistic interrogations focused on immune cell function in shaping NAFLD progression.
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Affiliation(s)
- Jarren R. Oates
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Keisuke Sawada
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Daniel A. Giles
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Pablo C. Alarcon
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Michelle S.M.A. Damen
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Sara Szabo
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Pathology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Traci E. Stankiewicz
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Maria E. Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
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6
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Föh B, Buhre JS, Lunding HB, Moreno-Fernandez ME, König P, Sina C, Divanovic S, Ehlers M. Microbial metabolite butyrate promotes induction of IL-10+IgM+ plasma cells. PLoS One 2022; 17:e0266071. [PMID: 35333906 PMCID: PMC8956175 DOI: 10.1371/journal.pone.0266071] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 03/11/2022] [Indexed: 12/12/2022] Open
Abstract
The microbially-derived short-chain fatty acid butyrate is a central inhibitor of inflammatory innate and adaptive immune responses. Emerging evidence suggests that butyrate induces differentiation of IL-10-producing (IL-10+) regulatory B cells. However, the underlying mechanisms of butyrate-driven modulation of B cell differentiation are not fully defined. Given the dominant role of regulatory plasma cells (PCs) as the main source of anti-inflammatory cytokines including IL-10 and the observation that butyrate also induces the differentiation of PCs, we here investigated the effect of the microbial metabolite butyrate on the induction of regulatory IL-10+ PCs and underlying mechanisms. Here we show that butyrate induces the differentiation of IL-10+IgM+ PCs. Ex vivo, butyrate, but hardly propionate, another microbially-derived short-chain fatty acid, induced the differentiation of IL-10+IgM+ CD138high PCs from isolated splenic murine B cells. In vivo, administration of butyrate via drinking water or by daily intraperitoneal injection increased the number of IL-10+IgM+ CD138high PCs in the spleens of Ovalbumin (Ova)/complete Freund’s adjuvant-immunized mice. The induction of these regulatory PCs was associated with an increase of anti-Ova IgM, but a reduction of anti-Ova class-switched pathogenic IgG2b serum antibodies. Based on the knowledge that butyrate inhibits histone deacetylases (HDACs) thereby increasing histone acetylation, we identified here that HDAC3 inhibition was sufficient to induce PC differentiation and IL-10+ expression. Furthermore, reduced mitochondrial superoxide levels following butyrate treatment and HDAC3 inhibition were necessary for PC differentiation, but not IL-10 expression. In summary, the microbial metabolite butyrate promotes the differentiation of IgM+ PCs and their expression of IL-10. HDAC3 inhibition may be involved as an underlying pathway for both PC differentiation and IL-10 expression, while reduced mitochondrial superoxide levels are crucial only for PC differentiation. The induction of regulatory IL-10+IgM+ PCs and the inhibition of class switching to antigen-specific pathogenic IgG subclasses might represent important pathways of butyrate to limit inflammation.
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Affiliation(s)
- Bandik Föh
- Institute of Nutritional Medicine, University of Lübeck and University Hospital Schleswig-Holstein, Lübeck, Germany
- Department of Medicine I, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Jana Sophia Buhre
- Institute of Nutritional Medicine, University of Lübeck and University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Hanna B. Lunding
- Institute of Nutritional Medicine, University of Lübeck and University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Maria E. Moreno-Fernandez
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States of America
| | - Peter König
- Institute of Anatomy, University of Lübeck, Lübeck, Germany
| | - Christian Sina
- Institute of Nutritional Medicine, University of Lübeck and University Hospital Schleswig-Holstein, Lübeck, Germany
- Department of Medicine I, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Senad Divanovic
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States of America
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Marc Ehlers
- Institute of Nutritional Medicine, University of Lübeck and University Hospital Schleswig-Holstein, Lübeck, Germany
- Airway Research Center North, University of Lübeck, German Center for Lung Research (DZL), Lübeck, Germany
- * E-mail:
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7
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Moreno-Fernandez ME, Damen MSMA, Divanovic S. A protocol for isolation of primary human immune cells from the liver and mesenteric white adipose tissue biopsies. STAR Protoc 2021; 2:100937. [PMID: 34778849 PMCID: PMC8577113 DOI: 10.1016/j.xpro.2021.100937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Isolation of viable immune cells from human tissues is critical for the characterization of cellular and molecular processes underlying disease pathogenesis. Here, we describe protocols for the isolation of highly viable immune cells from liver wedges and mesenteric white adipose tissue resections from obese persons. Notably, characterization of the isolated single-immune cell suspensions, via utility of basic immunological interrogations and genetic approaches, promises to generate an improved understanding of altered immunological pathways in obese individuals with or without metabolic diseases. For complete details on the use and execution of this protocol, please refer to Moreno-Fernandez et al. (2021). Protocol for isolation of highly viable human immune cells from small liver wedges Protocol for liver wedge processing does not require enzymatic digestion Detailed steps for isolation of highly viable human immune cells from mesenteric WAT In vitro activation of primary tissue immune cells and their functional assessment
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Affiliation(s)
- Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Michelle S M A Damen
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.,The Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
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8
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Thomas AL, Alarcon PC, Divanovic S, Chougnet CA, Hildeman DA, Moreno-Fernandez ME. Implications of Inflammatory States on Dysfunctional Immune Responses in Aging and Obesity. Front Aging 2021; 2:732414. [PMID: 35822048 PMCID: PMC9261339 DOI: 10.3389/fragi.2021.732414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 08/25/2021] [Indexed: 12/16/2022]
Abstract
Aging and obesity are two conditions characterized by chronic, low-grade inflammation. While both conditions are also associated with dysfunctional immune responses, the shared and distinct underlying mechanisms are just starting to be uncovered. In fact, recent findings have suggested that the effects of obesity on the immune system can be thought of as a state of accelerated aging. Here we propose that chronic, low-grade inflammation seen in obesity and aging is complex, affects multiple cell types, and results in an altered basal immune state. In aging, part of this altered state is the emergence of regulatory immune populations that lead to further immune dysfunction in an attempt to reduce chronic inflammation. While in obesity, part of the altered state is the effect of expanding adipose tissue on immune cell function. Thus, in this review, we compare, and contrast altered immune states in aging and obesity and discuss their potential contribution to a shared clinical problem- decreased vaccine responsiveness.
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Affiliation(s)
- Alyssa L. Thomas
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program and Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and The University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Pablo C. Alarcon
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program and Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and The University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Medical Scientist Training Program, Cincinnati Children’s Hospital Medical Center and The University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program and Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and The University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Medical Scientist Training Program, Cincinnati Children’s Hospital Medical Center and The University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Claire A. Chougnet
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program and Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and The University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - David A. Hildeman
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Immunology Graduate Program and Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and The University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Medical Scientist Training Program, Cincinnati Children’s Hospital Medical Center and The University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Center for Transplant Immunology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Maria E. Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
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9
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Moreno-Fernandez ME, Sharma V, Stankiewicz TE, Oates JR, Doll JR, Damen MSMA, Almanan MATA, Chougnet CA, Hildeman DA, Divanovic S. Aging mitigates the severity of obesity-associated metabolic sequelae in a gender independent manner. Nutr Diabetes 2021; 11:15. [PMID: 34099626 PMCID: PMC8184786 DOI: 10.1038/s41387-021-00157-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 05/10/2021] [Accepted: 05/19/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Understanding gender-associated bias in aging and obesity-driven metabolic derangements has been hindered by the inability to model severe obesity in female mice. METHODS Here, using chow- or high fat diet (HFD)-feeding regimens at standard (TS) and thermoneutral (TN) housing temperatures, the latter to model obesity in female mice, we examined the impact of gender and aging on obesity-associated metabolic derangements and immune responsiveness. Analysis included quantification of: (i) weight gain and adiposity; (ii) the development and severity of glucose dysmetabolism and non-alcoholic fatty liver disease (NAFLD); and (iii) induction of inflammatory pathways related to metabolic dysfunction. RESULTS We show that under chow diet feeding regimen, aging was accompanied by increased body weight and white adipose tissue (WAT) expansion in a gender independent manner. HFD feeding regimen in aged, compared to young, male mice at TS, resulted in attenuated glucose dysmetabolism and hepatic steatosis. However, under TS housing conditions only aged, but not young, HFD fed female mice developed obesity. At TN however, both young and aged HFD fed female mice developed severe obesity. Independent of gender or housing conditions, aging attenuated the severity of metabolic derangements in HFD-fed obese mice. Tempered severity of metabolic derangements in aged mice was associated with increased splenic frequency of regulatory T (Treg) cells, Type I regulatory (Tr1)-like cells and circulating IL-10 levels and decreased vigor of HFD-driven induction of inflammatory pathways in adipose and liver tissues. CONCLUSION Our findings suggest that aging-associated altered immunological profile and inflammatory vigor may play a dominant role in the attenuation of obesogenic diet-driven metabolic dysfunction.
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Affiliation(s)
- Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Vishakha Sharma
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Immunology Graduate Program Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
| | - Traci E Stankiewicz
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Jarren R Oates
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Immunology Graduate Program Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
| | - Jessica R Doll
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Michelle S M A Damen
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Maha A T A Almanan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Immunology Graduate Program Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
| | - Claire A Chougnet
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Immunology Graduate Program Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
| | - David A Hildeman
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Immunology Graduate Program Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
- Center for Transplant Immunology, and Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center Cincinnati, Ohio, 45229, USA
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.
- Division of Immunobiology Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.
- Immunology Graduate Program Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.
- Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, 45229, USA.
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10
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Moreno-Fernandez ME, Giles DA, Oates JR, Chan CC, Damen MSMA, Doll JR, Stankiewicz TE, Chen X, Chetal K, Karns R, Weirauch MT, Romick-Rosendale L, Xanthakos SA, Sheridan R, Szabo S, Shah AS, Helmrath MA, Inge TH, Deshmukh H, Salomonis N, Divanovic S. PKM2-dependent metabolic skewing of hepatic Th17 cells regulates pathogenesis of non-alcoholic fatty liver disease. Cell Metab 2021; 33:1187-1204.e9. [PMID: 34004162 PMCID: PMC8237408 DOI: 10.1016/j.cmet.2021.04.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 03/31/2021] [Accepted: 04/27/2021] [Indexed: 12/12/2022]
Abstract
Emerging evidence suggests a key contribution to non-alcoholic fatty liver disease (NAFLD) pathogenesis by Th17 cells. The pathogenic characteristics and mechanisms of hepatic Th17 cells, however, remain unknown. Here, we uncover and characterize a distinct population of inflammatory hepatic CXCR3+Th17 (ihTh17) cells sufficient to exacerbate NAFLD pathogenesis. Hepatic ihTh17 cell accrual was dependent on the liver microenvironment and CXCR3 axis activation. Mechanistically, the pathogenic potential of ihTh17 cells correlated with increased chromatin accessibility, glycolytic output, and concomitant production of IL-17A, IFNγ, and TNFα. Modulation of glycolysis using 2-DG or cell-specific PKM2 deletion was sufficient to reverse ihTh17-centric inflammatory vigor and NAFLD severity. Importantly, ihTh17 cell characteristics, CXCR3 axis activation, and hepatic expression of glycolytic genes were conserved in human NAFLD. Together, our data show that the steatotic liver microenvironment regulates Th17 cell accrual, metabolism, and competence toward an ihTh17 fate. Modulation of these pathways holds potential for development of novel therapeutic strategies for NAFLD.
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Affiliation(s)
- Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Daniel A Giles
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Jarren R Oates
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Calvin C Chan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA
| | - Michelle S M A Damen
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Jessica R Doll
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Traci E Stankiewicz
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Xiaoting Chen
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; The Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Kashish Chetal
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Rebekah Karns
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Matthew T Weirauch
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; The Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Lindsey Romick-Rosendale
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; NMR Metabolomics Core, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Stavra A Xanthakos
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Rachel Sheridan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Sara Szabo
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Amy S Shah
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Michael A Helmrath
- Division of Pediatric General and Thoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; The Center for Stem Cell & Organoid Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Thomas H Inge
- Department of Surgery, Children's Hospital Colorado, Aurora, CO 80045, USA
| | - Hitesh Deshmukh
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; The Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Nathan Salomonis
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; The Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
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11
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Chan CC, Harley ITW, Pfluger PT, Trompette A, Stankiewicz TE, Allen JL, Moreno-Fernandez ME, Damen MSMA, Oates JR, Alarcon PC, Doll JR, Flick MJ, Flick LM, Sanchez-Gurmaches J, Mukherjee R, Karns R, Helmrath M, Inge TH, Weisberg SP, Pamp SJ, Relman DA, Seeley RJ, Tschöp MH, Karp CL, Divanovic S. A BAFF/APRIL axis regulates obesogenic diet-driven weight gain. Nat Commun 2021; 12:2911. [PMID: 34006859 PMCID: PMC8131685 DOI: 10.1038/s41467-021-23084-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 04/12/2021] [Indexed: 02/07/2023] Open
Abstract
The impact of immune mediators on weight homeostasis remains underdefined. Interrogation of resistance to diet-induced obesity in mice lacking a negative regulator of Toll-like receptor signaling serendipitously uncovered a role for B cell activating factor (BAFF). Here we show that overexpression of BAFF in multiple mouse models associates with protection from weight gain, approximating a log-linear dose response relation to BAFF concentrations. Gene expression analysis of BAFF-stimulated subcutaneous white adipocytes unveils upregulation of lipid metabolism pathways, with BAFF inducing white adipose tissue (WAT) lipolysis. Brown adipose tissue (BAT) from BAFF-overexpressing mice exhibits increased Ucp1 expression and BAFF promotes brown adipocyte respiration and in vivo energy expenditure. A proliferation-inducing ligand (APRIL), a BAFF homolog, similarly modulates WAT and BAT lipid handling. Genetic deletion of both BAFF and APRIL augments diet-induced obesity. Lastly, BAFF/APRIL effects are conserved in human adipocytes and higher BAFF/APRIL levels correlate with greater BMI decrease after bariatric surgery. Together, the BAFF/APRIL axis is a multifaceted immune regulator of weight gain and adipose tissue function.
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Affiliation(s)
- Calvin C Chan
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Medical Scientist Training Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Immunology Graduate Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Isaac T W Harley
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Medical Scientist Training Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Immunology Graduate Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Division of Rheumatology, Department of Internal Medicine and Department of Immunology & Microbiology, The University of Colorado Denver, Aurora, CO, USA
| | - Paul T Pfluger
- Research Unit NeuroBiology of Diabetes, Helmholtz Center Munich, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Center Munich, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Metabolic Diseases, Technische Universität München, Munich, Germany
| | - Aurelien Trompette
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- University of Lausanne, Service de Pneumologie, CHUV, CLED 02.206, Epalinges, Switzerland
| | - Traci E Stankiewicz
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Jessica L Allen
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Immunology Graduate Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- , Charlotte, NC, USA
| | - Maria E Moreno-Fernandez
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Michelle S M A Damen
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Jarren R Oates
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Immunology Graduate Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Pablo C Alarcon
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Medical Scientist Training Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Immunology Graduate Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Jessica R Doll
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Matthew J Flick
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Leah M Flick
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- , Chapel Hill, NC, USA
| | - Joan Sanchez-Gurmaches
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Rajib Mukherjee
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Rebekah Karns
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Michael Helmrath
- Pediatric General and Thoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Stem Cell & Organoid Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Thomas H Inge
- Department of Surgery, Children's Hospital Colorado, Aurora, CO, USA
| | | | - Sünje J Pamp
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - David A Relman
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Randy J Seeley
- Department of Surgery, Internal Medicine and Nutritional Sciences, University of Michigan, Ann Arbor, MI, USA
| | - Matthias H Tschöp
- Institute for Diabetes and Obesity, Helmholtz Center Munich, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Metabolic Diseases, Technische Universität München, Munich, Germany
| | - Christopher L Karp
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Medical Scientist Training Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Immunology Graduate Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Global Health Discovery & Translational Sciences, Bill & Melinda Gates Foundation, Seattle, WA, USA
| | - Senad Divanovic
- Department of Pediatrics, The University of Cincinnati College of Medicine, Cincinnati, OH, USA.
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- Medical Scientist Training Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- Immunology Graduate Program, The University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
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12
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Damen MSMA, Stankiewicz TE, Park SH, Helsley RN, Chan CC, Moreno-Fernandez ME, Doll JR, Szabo S, Herbert DR, Softic S, Divanovic S. Non-hematopoietic IL-4Rα expression contributes to fructose-driven obesity and metabolic sequelae. Int J Obes (Lond) 2021; 45:2377-2387. [PMID: 34302121 PMCID: PMC8528699 DOI: 10.1038/s41366-021-00902-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 06/23/2021] [Accepted: 06/30/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The risks of excess sugar intake in addition to high-fat diet consumption on immunopathogenesis of obesity-associated metabolic diseases are poorly defined. Interleukin-4 (IL-4) and IL-13 signaling via IL-4Rα regulates adipose tissue lipolysis, insulin sensitivity, and liver fibrosis in obesity. However, the contribution of IL-4Rα to sugar rich diet-driven obesity and metabolic sequelae remains unknown. METHODS WT, IL-4Rα-deficient (IL-4Rα-/-) and STAT6-deficient mice (STAT6-/-) male mice were fed low-fat chow, high fat (HF) or HF plus high carbohydrate (HC/fructose) diet (HF + HC). Analysis included quantification of: (i) body weight, adiposity, energy expenditure, fructose metabolism, fatty acid oxidation/synthesis, glucose dysmetabolism and hepatocellular damage; (ii) the contribution of the hematopoietic or non-hematopoietic IL-4Rα expression; and (iii) the relevance of IL-4Rα downstream canonical STAT6 signaling pathway in this setting. RESULTS We show that IL-4Rα regulated HF + HC diet-driven weight gain, whole body adiposity, adipose tissue inflammatory gene expression, energy expenditure, locomotor activity, glucose metabolism, hepatic steatosis, hepatic inflammatory gene expression and hepatocellular damage. These effects were potentially, and in part, dependent on non-hematopoietic IL-4Rα expression but were independent of direct STAT6 activation. Mechanistically, hepatic ketohexokinase-A and C expression was dependent on IL-4Rα, as it was reduced in IL-4Rα-deficient mice. KHK activity was also affected by HF + HC dietary challenge. Further, reduced expression/activity of KHK in IL-4Rα mice had a significant effect on fatty acid oxidation and fatty acid synthesis pathways. CONCLUSION Our findings highlight potential contribution of non-hematopoietic IL-4Rα activation of a non-canonical signaling pathway that regulates the HF + HC diet-driven induction of obesity and severity of obesity-associated sequelae.
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Affiliation(s)
- Michelle S. M. A. Damen
- grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.239573.90000 0000 9025 8099Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
| | - Traci E. Stankiewicz
- grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.239573.90000 0000 9025 8099Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
| | - Se-Hyung Park
- grid.266539.d0000 0004 1936 8438Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Kentucky College of Medicine and Kentucky Children’s Hospital, Lexington, KY USA
| | - Robert N. Helsley
- grid.266539.d0000 0004 1936 8438Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Kentucky College of Medicine and Kentucky Children’s Hospital, Lexington, KY USA
| | - Calvin C. Chan
- grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.239573.90000 0000 9025 8099Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,grid.24827.3b0000 0001 2179 9593Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.24827.3b0000 0001 2179 9593Immunology Graduate Program, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH USA
| | - Maria E. Moreno-Fernandez
- grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.239573.90000 0000 9025 8099Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
| | - Jessica R. Doll
- grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.239573.90000 0000 9025 8099Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
| | - Sara Szabo
- grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.239573.90000 0000 9025 8099Division of Pathology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
| | - De’Broski R. Herbert
- grid.25879.310000 0004 1936 8972Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA USA
| | - Samir Softic
- grid.266539.d0000 0004 1936 8438Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Kentucky College of Medicine and Kentucky Children’s Hospital, Lexington, KY USA ,grid.266539.d0000 0004 1936 8438Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, KY USA
| | - Senad Divanovic
- grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.239573.90000 0000 9025 8099Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,grid.24827.3b0000 0001 2179 9593Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.24827.3b0000 0001 2179 9593Immunology Graduate Program, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.239573.90000 0000 9025 8099Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
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13
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Abstract
Macrophages are central to the pathogenesis of non-alcoholic steatohepatitis (NASH). However, the identities and functional relationships between tissue-resident and tissue-recruited macrophages in NASH remain poorly understood. A recent study from Seidman et al. (2020) elucidates, at single-cell resolution, the fates, niches, and regulatory landscapes of liver tissue-resident and tissue-recruited macrophage populations in NASH.
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Affiliation(s)
- Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Emily R Miraldi
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45220, USA; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
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14
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Chan CC, Damen MSMA, Moreno-Fernandez ME, Stankiewicz TE, Cappelletti M, Alarcon PC, Oates JR, Doll JR, Mukherjee R, Chen X, Karns R, Weirauch MT, Helmrath MA, Inge TH, Divanovic S. Type I interferon sensing unlocks dormant adipocyte inflammatory potential. Nat Commun 2020; 11:2745. [PMID: 32488081 PMCID: PMC7265526 DOI: 10.1038/s41467-020-16571-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 05/12/2020] [Indexed: 02/08/2023] Open
Abstract
White adipose tissue inflammation, in part via myeloid cell contribution, is central to obesity pathogenesis. Mechanisms regulating adipocyte inflammatory potential and consequent impact of such inflammation in disease pathogenesis remain poorly defined. We show that activation of the type I interferon (IFN)/IFNα receptor (IFNAR) axis amplifies adipocyte inflammatory vigor and uncovers dormant gene expression patterns resembling inflammatory myeloid cells. IFNβ-sensing promotes adipocyte glycolysis, while glycolysis inhibition impeded IFNβ-driven intra-adipocyte inflammation. Obesity-driven induction of the type I IFN axis and activation of adipocyte IFNAR signaling contributes to obesity-associated pathogenesis in mice. Notably, IFNβ effects are conserved in human adipocytes and detection of the type I IFN/IFNAR axis-associated signatures positively correlates with obesity-driven metabolic derangements in humans. Collectively, our findings reveal a capacity for the type I IFN/IFNAR axis to regulate unifying inflammatory features in both myeloid cells and adipocytes and hint at an underappreciated contribution of adipocyte inflammation in disease pathogenesis. White adipose inflammation can occur in obesity and is at least in part mediated by inflammatory immune cells. Here the authors show that the Type I Interferon/Interferon alpha-beta receptor axis promotes an inflammatory, glycolysis associated adipocyte phenotype.
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Affiliation(s)
- Calvin C Chan
- Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
| | - Michelle S M A Damen
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Traci E Stankiewicz
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Monica Cappelletti
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.,Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at UCLA, Mattel Children's Hospital UCLA, Los Angeles, CA, USA
| | - Pablo C Alarcon
- Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
| | - Jarren R Oates
- Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA
| | - Jessica R Doll
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Rajib Mukherjee
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Xiaoting Chen
- The Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Rebekah Karns
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Matthew T Weirauch
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA.,The Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.,Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.,Divsion of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Michael A Helmrath
- Division of Pediatric General and Thoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.,Center for Stem Cell & Organoid Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Thomas H Inge
- Department of Surgery, Children's Hospital Colorado, Aurora, CO, 80045, USA
| | - Senad Divanovic
- Medical Scientist Training Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA. .,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA. .,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45220, USA. .,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA. .,Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.
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15
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Oates JR, McKell MC, Moreno-Fernandez ME, Damen MSMA, Deepe GS, Qualls JE, Divanovic S. Macrophage Function in the Pathogenesis of Non-alcoholic Fatty Liver Disease: The Mac Attack. Front Immunol 2019; 10:2893. [PMID: 31921154 PMCID: PMC6922022 DOI: 10.3389/fimmu.2019.02893] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 11/26/2019] [Indexed: 12/15/2022] Open
Abstract
Obesity is a prevalent predisposing factor to non-alcoholic fatty liver disease (NAFLD), the most common chronic liver disease in the developed world. NAFLD spectrum of disease involves progression from steatosis (NAFL), to steatohepatitis (NASH), cirrhosis and hepatocellular carcinoma (HCC). Despite clinical and public health significance, current FDA approved therapies for NAFLD are lacking in part due to insufficient understanding of pathogenic mechanisms driving disease progression. The etiology of NAFLD is multifactorial. The induction of both systemic and tissue inflammation consequential of skewed immune cell metabolic state, polarization, tissue recruitment, and activation are central to NAFLD progression. Here, we review the current understanding of the above stated cellular and molecular processes that govern macrophage contribution to NAFLD pathogenesis and how adipose tissue and liver crosstalk modulates macrophage function. Notably, the manipulation of such events may lead to the development of new therapies for NAFLD.
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Affiliation(s)
- Jarren R Oates
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Melanie C McKell
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Michelle S M A Damen
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - George S Deepe
- Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Joseph E Qualls
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
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16
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Schröder T, Wiese AV, Ender F, Quell KM, Vollbrandt T, Duhn J, Sünderhauf A, Künstner A, Moreno-Fernandez ME, Derer S, Aherrahrou Z, Lewkowich I, Divanovic S, Sina C, Köhl J, Laumonnier Y. Short-term high-fat diet feeding protects from the development of experimental allergic asthma in mice. Clin Exp Allergy 2019; 49:1245-1257. [PMID: 31265181 DOI: 10.1111/cea.13454] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 06/11/2019] [Accepted: 06/17/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND A close association between obesity and asthma has been described. The nature of this association remains elusive, especially with respect to allergic asthma. Controversial findings exist regarding the impact of short-term high-fat diet (HFD) feeding on the development of allergic asthma. OBJECTIVE To delineate the impact of short-term HFD feeding on the development of experimental allergic asthma. METHODS Female C57BL/6JRJ mice were fed with a short-term HFD or chow diet (CD) for 12 weeks. Allergic asthma was induced by intraperitoneal OVA/alum sensitization followed by repeated OVA airway challenges. We determined airway hyperresponsiveness (AHR) and pulmonary inflammation by histologic and flow cytometric analysis of immune cells. Furthermore, we assessed the impact of HFD on dendritic cell (DC)-mediated activation of T cells. RESULTS Female mice showed a mild increase in body weight accompanied by mild metabolic alterations. Upon OVA challenge, CD-fed mice developed strong AHR and airway inflammation, which were markedly reduced in HFD-fed mice. Mucus production was similar in both treatment groups. OVA-induced increases in DC and CD4+ T-cell recruitment to the lungs were significantly attenuated in HFD-fed mice. MHC-II expression and CD40 expression in pulmonary CD11b+ DCs were markedly lower in HFD-fed compared to CD-fed mice, which was associated in vivo with a decreased T helper (Th) 1/17 differentiation and Treg formation without impacting Th2 differentiation. CONCLUSIONS/CLINICAL RELEVANCE These findings suggest that short-term HFD feeding attenuates the development of AHR, airway inflammation, pulmonary DC recruitment and MHC-II/CD40 expression leading to diminished Th1/17 but unchanged Th2 differentiation. Thus, short-term HFD feeding and associated metabolic alterations may have protective effects in allergic asthma development.
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Affiliation(s)
- Torsten Schröder
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany.,Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Anna V Wiese
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Fanny Ender
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Katharina M Quell
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Tillman Vollbrandt
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany.,Cell Analysis Core Facility, University of Lübeck, Lübeck, Germany
| | - Jannis Duhn
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Annika Sünderhauf
- Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Axel Künstner
- The Lübeck Institute of Experimental Dermatology, Group of Medical Systems Biology, University of Lübeck, Lübeck, Germany.,Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Stefanie Derer
- Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Zouhair Aherrahrou
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany.,DZHK (German Centre for Cardiovascular Research), University Heart Centre Lübeck, Lübeck, Germany
| | - Ian Lewkowich
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Christian Sina
- Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Jörg Köhl
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Yves Laumonnier
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
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17
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Moreno-Fernandez ME, Giles DA, Stankiewicz TE, Sheridan R, Karns R, Cappelletti M, Lampe K, Mukherjee R, Sina C, Sallese A, Bridges JP, Hogan SP, Aronow BJ, Hoebe K, Divanovic S. Peroxisomal β-oxidation regulates whole body metabolism, inflammatory vigor, and pathogenesis of nonalcoholic fatty liver disease. JCI Insight 2018; 3:93626. [PMID: 29563328 DOI: 10.1172/jci.insight.93626] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 02/08/2018] [Indexed: 12/14/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD), a metabolic predisposition for development of hepatocellular carcinoma (HCC), represents a disease spectrum ranging from steatosis to steatohepatitis to cirrhosis. Acox1, a rate-limiting enzyme in peroxisomal fatty acid β-oxidation, regulates metabolism, spontaneous hepatic steatosis, and hepatocellular damage over time. However, it is unknown whether Acox1 modulates inflammation relevant to NAFLD pathogenesis or if Acox1-associated metabolic and inflammatory derangements uncover and accelerate potential for NAFLD progression. Here, we show that mice with a point mutation in Acox1 (Acox1Lampe1) exhibited altered cellular metabolism, modified T cell polarization, and exacerbated immune cell inflammatory potential. Further, in context of a brief obesogenic diet stress, NAFLD progression associated with Acox1 mutation resulted in significantly accelerated and exacerbated hepatocellular damage via induction of profound histological changes in hepatocytes, hepatic inflammation, and robust upregulation of gene expression associated with HCC development. Collectively, these data demonstrate that β-oxidation links metabolism and immune responsiveness and that a better understanding of peroxisomal β-oxidation may allow for discovery of mechanisms central for NAFLD progression.
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Affiliation(s)
- Maria E Moreno-Fernandez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, Ohio, USA
| | - Daniel A Giles
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, Ohio, USA.,Immunology Graduate Program, CCHMC, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Traci E Stankiewicz
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, Ohio, USA
| | - Rachel Sheridan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Pathology, CCHMC, Cincinnati, Ohio, USA
| | - Rebekah Karns
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Gastroenterology, Hepatology, and Nutrition, CCHMC, Cincinnati, Ohio, USA
| | - Monica Cappelletti
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, Ohio, USA
| | - Kristin Lampe
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, Ohio, USA
| | - Rajib Mukherjee
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, Ohio, USA
| | - Christian Sina
- Molecular Gastroenterology, University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Anthony Sallese
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Neonatology and Pulmonary Biology
| | - James P Bridges
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Neonatology and Pulmonary Biology
| | - Simon P Hogan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Allergy and Immunology, and
| | - Bruce J Aronow
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Biomedical Informatics, CCHMC, Cincinnati, Ohio, USA
| | - Kasper Hoebe
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, Ohio, USA
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, Ohio, USA
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18
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Giles DA, Moreno-Fernandez ME, Stankiewicz TE, Graspeuntner S, Cappelletti M, Wu D, Mukherjee R, Chan CC, Lawson MJ, Klarquist J, Sünderhauf A, Softic S, Kahn CR, Stemmer K, Iwakura Y, Aronow BJ, Karns R, Steinbrecher KA, Karp CL, Sheridan R, Shanmukhappa SK, Reynaud D, Haslam DB, Sina C, Rupp J, Hogan SP, Divanovic S. Erratum: Thermoneutral housing exacerbates nonalcoholic fatty liver disease in mice and allows for sex-independent disease modeling. Nat Med 2017; 23:1241. [DOI: 10.1038/nm1017-1241c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Giles DA, Moreno-Fernandez ME, Stankiewicz TE, Graspeuntner S, Cappelletti M, Wu D, Mukherjee R, Chan CC, Lawson MJ, Klarquist J, Sünderhauf A, Softic S, Kahn CR, Stemmer K, Iwakura Y, Aronow BJ, Karns R, Steinbrecher KA, Karp CL, Sheridan R, Shanmukhappa SK, Reynaud D, Haslam DB, Sina C, Rupp J, Hogan SP, Divanovic S. Thermoneutral housing exacerbates nonalcoholic fatty liver disease in mice and allows for sex-independent disease modeling. Nat Med 2017; 23:829-838. [PMID: 28604704 PMCID: PMC5596511 DOI: 10.1038/nm.4346] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 04/22/2017] [Indexed: 02/08/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD), a common prelude to cirrhosis and hepatocellular carcinoma, is the most common chronic liver disease worldwide. Defining the molecular mechanisms underlying the pathogenesis of NAFLD has been hampered by a lack of animal models that closely recapitulate the severe end of the disease spectrum in humans, including bridging hepatic fibrosis. Here we demonstrate that a novel experimental model employing thermoneutral housing, as opposed to standard housing, resulted in lower stress-driven production of corticosterone, augmented mouse proinflammatory immune responses and markedly exacerbated high-fat diet (HFD)-induced NAFLD pathogenesis. Disease exacerbation at thermoneutrality was conserved across multiple mouse strains and was associated with augmented intestinal permeability, an altered microbiome and activation of inflammatory pathways that are associated with the disease in humans. Depletion of Gram-negative microbiota, hematopoietic cell deletion of Toll-like receptor 4 (TLR4) and inactivation of the IL-17 axis resulted in altered immune responsiveness and protection from thermoneutral-housing-driven NAFLD amplification. Finally, female mice, typically resistant to HFD-induced obesity and NAFLD, develop full disease characteristics at thermoneutrality. Thus, thermoneutral housing provides a sex-independent model of exacerbated NAFLD in mice and represents a novel approach for interrogation of the cellular and molecular mechanisms underlying disease pathogenesis.
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Affiliation(s)
- Daniel A Giles
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Maria E Moreno-Fernandez
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Traci E Stankiewicz
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Simon Graspeuntner
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Monica Cappelletti
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - David Wu
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Rajib Mukherjee
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Calvin C Chan
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Matthew J Lawson
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jared Klarquist
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Annika Sünderhauf
- Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Samir Softic
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Boston, Massachusetts, USA
| | - C Ronald Kahn
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Boston, Massachusetts, USA
| | - Kerstin Stemmer
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center and German Center for Diabetes Research (DZD), Helmholtz Zentrum München, Neuherberg, Germany
| | - Yoichiro Iwakura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan
| | - Bruce J Aronow
- Division of Biomedical Informatics, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Rebekah Karns
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Kris A Steinbrecher
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | - Rachel Sheridan
- Division of Pathology and Laboratory Medicine, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Shiva K Shanmukhappa
- Division of Pathology and Laboratory Medicine, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Damien Reynaud
- Division of Experimental Hematology and Cancer Biology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - David B Haslam
- Division of Infectious Diseases, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Christian Sina
- Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Jan Rupp
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Simon P Hogan
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Senad Divanovic
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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20
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Feldhoff LM, Rueda CM, Moreno-Fernandez ME, Sauer J, Jackson CM, Chougnet CA, Rupp J. IL-1β induced HIF-1α inhibits the differentiation of human FOXP3 + T cells. Sci Rep 2017; 7:465. [PMID: 28352109 PMCID: PMC5428734 DOI: 10.1038/s41598-017-00508-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 03/02/2017] [Indexed: 12/17/2022] Open
Abstract
Differentiation of regulatory Treg (Treg) in the periphery is critical to control inflammatory processes. Although polarization of inducible Treg (iTreg) often occurs in an inflammatory environment, the effects exerted by inflammation on human iTreg differentiation have not been extensively studied. We observed that IL-1β significantly reduced the frequency of FOXP3+ T cells under iTreg-polarizing conditions. Mechanistically, we show that IL-1β activated mTORC1 and downstream upregulated hypoxia inducible factor-1 (HIF-1α) expression. Using specific inhibitors, we demonstrated that both steps were critical in the deleterious effect of IL-1β on Treg differentiation. Chemical stabilization of HIF-1α by Dimethyloxalylglycine (DMOG) also significantly impaired iTreg differentiation. Interestingly, while IL-1β-treated cells exhibited only minor changes in metabolism, DMOG treatment decreased iTreg mitochondrial respiration and increased their glycolytic capacity. In conclusion, exposure to inflammatory stimuli profoundly inhibits human Treg differentiation HIF-1α dependent, suggesting that targeting HIF-1α could be a strategy to foster iTreg differentiation in an inflammatory milieu. However, IL-1β deleterious effect does not appear to be completely driven by metabolic changes. These data thus suggest that several mechanisms contribute to the regulation of iTreg differentiation, but the timing and respective requirement for each pathway vary depending on the milieu in which iTreg differentiate.
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Affiliation(s)
- Lea M Feldhoff
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Cesar M Rueda
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Maria E Moreno-Fernandez
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Johanna Sauer
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Courtney M Jackson
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Claire A Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jan Rupp
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany.
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21
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Cappelletti M, Presicce P, Lawson MJ, Chaturvedi V, Stankiewicz TE, Vanoni S, Harley IT, McAlees JW, Giles DA, Moreno-Fernandez ME, Rueda CM, Senthamaraikannan P, Sun X, Karns R, Hoebe K, Janssen EM, Karp CL, Hildeman DA, Hogan SP, Kallapur SG, Chougnet CA, Way SS, Divanovic S. Type I interferons regulate susceptibility to inflammation-induced preterm birth. JCI Insight 2017; 2:e91288. [PMID: 28289719 DOI: 10.1172/jci.insight.91288] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Preterm birth (PTB) is a leading worldwide cause of morbidity and mortality in infants. Maternal inflammation induced by microbial infection is a critical predisposing factor for PTB. However, biological processes associated with competency of pathogens, including viruses, to induce PTB or sensitize for secondary bacterial infection-driven PTB are unknown. We show that pathogen/pathogen-associated molecular pattern-driven activation of type I IFN/IFN receptor (IFNAR) was sufficient to prime for systemic and uterine proinflammatory chemokine and cytokine production and induction of PTB. Similarly, treatment with recombinant type I IFNs recapitulated such effects by exacerbating proinflammatory cytokine production and reducing the dose of secondary inflammatory challenge required for induction of PTB. Inflammatory challenge-driven induction of PTB was eliminated by defects in type I IFN, TLR, or IL-6 responsiveness, whereas the sequence of type I IFN sensing by IFNAR on hematopoietic cells was essential for regulation of proinflammatory cytokine production. Importantly, we also show that type I IFN priming effects are conserved from mice to nonhuman primates and humans, and expression of both type I IFNs and proinflammatory cytokines is upregulated in human PTB. Thus, activation of the type I IFN/IFNAR axis in pregnancy primes for inflammation-driven PTB and provides an actionable biomarker and therapeutic target for mitigating PTB risk.
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Affiliation(s)
| | - Pietro Presicce
- Division of Neonatology/Pulmonary Biology, Cincinnati Children's Hospital Research Foundation
| | - Matthew J Lawson
- Division of Immunobiology.,Molecular, Cellular and Biochemical Pharmacology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | - Simone Vanoni
- Division of Allergy and Immunology, Cincinnati Children's Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | - Daniel A Giles
- Division of Immunobiology.,Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | | | | | - Rebekah Karns
- Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | | | | | - Simon P Hogan
- Division of Allergy and Immunology, Cincinnati Children's Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Suhas G Kallapur
- Division of Neonatology/Pulmonary Biology, Cincinnati Children's Hospital Research Foundation
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22
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Giles DA, Moreno-Fernandez ME, Divanovic S. IL-17 Axis Driven Inflammation in Non-Alcoholic Fatty Liver Disease Progression. Curr Drug Targets 2016; 16:1315-23. [PMID: 26028039 DOI: 10.2174/1389450116666150531153627] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 05/25/2015] [Indexed: 02/08/2023]
Abstract
Obesity is a primary risk factor for the development of non-alcoholic fatty liver disease (NAFLD). NAFLD, the most common chronic liver disease in the world, represents a spectrum of disorders that range from steatosis (NAFL) to steatohepatitis (NASH) to cirrhosis. It is anticipated that NAFLD will soon surpass chronic hepatitis C infection as the leading cause for needing liver transplantation. Despite its clinical and public health significance no specific therapies are available. Although the etiology of NAFLD is multifactorial and remains largely enigmatic, it is well accepted that inflammation is a central component of NAFLD pathogenesis. Despite the significance, critical immune mediators, loci of immune activation, the immune signaling pathways and the mechanism(s) underlying disease progression remain incompletely understood. Recent findings have focused on the role of Interleukin 17 (IL-17) family of proinflammatory cytokines in obesity and pathogenesis of obesity-associated sequelae. Notably, obesity favors a Th17 bias and is associated with increased IL-17A expression in both humans and mice. Further, in mice, IL-17 axis has been implicated in regulation of both obesity and NAFLD pathogenesis. However, despite these recent advances several important questions require further evaluation including: the relevant cellular source of IL-17A production; the critical IL- 17RA-expressing cell type; the critical liver infiltrating immune cells; and the underlying cellular effector mechanisms. Addressing these questions may aid in the identification and development of novel therapeutic targets for prevention of inflammation- driven NAFLD progression.
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Affiliation(s)
| | | | - Senad Divanovic
- Division of Immunobiology Cincinnati Children's Hospital Medical Center TCHRF - Location S, Room #S.5.409 3333 Burnet Avenue Cincinnati, Ohio 45229-3039 U.S.A.
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23
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Moreno-Fernandez ME, Aliberti J, Groeneweg S, Köhl J, Chougnet CA. A Novel Role for the Receptor of the Complement Cleavage Fragment C5a, C5aR1, in CCR5-Mediated Entry of HIV into Macrophages. AIDS Res Hum Retroviruses 2016; 32:399-408. [PMID: 26537334 DOI: 10.1089/aid.2015.0099] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The complement system is an ancient pattern recognition system that becomes activated during all stages of HIV infection. Previous studies have shown that C5a can enhance the infection of monocyte-derived macrophages and T cells indirectly through the production of interleukin (IL)-6 and tumor necrosis factor (TNF)-α and the attraction of dendritic cells. C5a exerts its multiple biologic functions mainly through activation of C5a receptor 1 (C5aR1). Here, we assessed the role of C5aR1 as an enhancer of CCR5-mediated HIV infection. We determined CCR5 and C5aR1 heterodimer formation in myeloid cells and the impact of C5aR1 blockade on HIV entry and genomic integration. C5aR1/CCR5 heterodimer formation was identified by immunoprecipitation and western blotting. THP-1 cells and monocyte-derived macrophages (MDM) were infected by R5 laboratory strains or HIV pseudotyped for the vesicular stomatitis virus (VSV) envelope. Levels of integrated HIV were measured by quantitative PCR after targeting of C5aR1 by a C5aR antagonist, neutralizing C5aR1 monoclonal antibody (mAb) or hC5a. C5aR1 was also silenced by specific siRNA prior to viral entry. We found that C5aR1 forms heterodimers with the HIV coreceptor CCR5 in myeloid cells. Targeting C5aR1 significantly decreased integration by R5 viruses but not by VSV-pseudotyped viruses, suggesting that C5aR1 is critical for viral entry. The level of inhibition achieved with C5aR1-blocking reagents was comparable to that of CCR5 antagonists. Mechanistically, C5aR1 targeting decreased CCR5 expression. MDM from CCR5Δ32 homozygous subjects expressed levels of C5aR1 similar to CCR5 WT individuals, suggesting that mere C5aR1 expression is not sufficient for HIV infection. HIV appeared to preferentially enter THP-1 cells expressing high levels of both C5aR1 and CCR5. Targeted reduction of C5aR1 expression in such cells reduced HIV infection by ~50%. Our data thus suggest that C5aR1 acts as an enhancer of CCR5-mediated HIV entry into macrophages, the targeting of which may prove useful to reduce HIV infection by R5 strains.
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Affiliation(s)
- Maria E. Moreno-Fernandez
- Division of Immunobiology, Cincinnati Children's Hospital and University of Cincinnati, College of Medicine, Cincinnati, Ohio
| | - Julio Aliberti
- Division of Immunobiology, Cincinnati Children's Hospital and University of Cincinnati, College of Medicine, Cincinnati, Ohio
| | - Sander Groeneweg
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Jörg Köhl
- Division of Immunobiology, Cincinnati Children's Hospital and University of Cincinnati, College of Medicine, Cincinnati, Ohio
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Claire A. Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital and University of Cincinnati, College of Medicine, Cincinnati, Ohio
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24
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Giles DA, Moreno-Fernandez ME, Stankiewicz TE, Cappelletti M, Huppert SS, Iwakura Y, Dong C, Shanmukhappa SK, Divanovic S. Regulation of Inflammation by IL-17A and IL-17F Modulates Non-Alcoholic Fatty Liver Disease Pathogenesis. PLoS One 2016; 11:e0149783. [PMID: 26895034 PMCID: PMC4760740 DOI: 10.1371/journal.pone.0149783] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 02/04/2016] [Indexed: 12/15/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become the most common chronic liver disease worldwide. While it is well-accepted that inflammation is central to NAFLD pathogenesis, the immune pathway(s) orchestrating disease progression are poorly defined. Notably, IL-17RA signaling, via IL-17A, plays an important role in obesity-driven NAFLD pathogenesis. However, the role of the IL-17F, another IL-17RA ligand, in NAFLD pathogenesis has not been examined. Further, the cell types expressing IL-17RA and producing IL-17RA ligands in the pathogenesis of NAFLD have not been defined. Here, IL-17RA-/-, IL-17A-/-, IL-17F-/- and wild-type (WT) mice were fed either standard chow diet or methionine and choline deficient diet (MCDD)--a diet known to induce steatosis and hepatic inflammation through beta-oxidation dysfunction--and hepatic inflammation and NAFLD progression were subsequently quantified. MCDD feeding augmented hepatic IL-17RA expression and significantly increased hepatic infiltration of macrophages and IL-17A and IL-17F producing CD4+ and CD8+ T cells in WT mice. In contrast, IL-17RA-/-, IL-17A-/-, and IL-17F-/- mice, despite increased steatosis, exhibited significant protection from hepatocellular damage compared to WT controls. Protection from hepatocellular damage correlated with decreased levels of hepatic T-cell and macrophage infiltration and decreased expression of inflammatory mediators associated with NAFLD. In sum, our results indicate that the IL-17 axis also plays a role in a MCDD-induced model of NAFLD pathogenesis. Further, we show for the first time that IL-17F, and not only IL-17A, plays an important role in NAFLD driven inflammation.
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Affiliation(s)
- Daniel A. Giles
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Maria E. Moreno-Fernandez
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Traci E. Stankiewicz
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Monica Cappelletti
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Stacey S. Huppert
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Yoichiro Iwakura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba, Japan
| | - Chen Dong
- Department of Immunology, MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Shiva K. Shanmukhappa
- Division of Pathology and Laboratory Medicine, Cincinnati Children’s Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Senad Divanovic
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
- * E-mail:
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25
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Rueda CM, Moreno-Fernandez ME, Jackson CM, Kallapur SG, Jobe AH, Chougnet CA. Neonatal regulatory T cells have reduced capacity to suppress dendritic cell function. Eur J Immunol 2015; 45:2582-92. [PMID: 26046326 DOI: 10.1002/eji.201445371] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 05/01/2015] [Accepted: 06/01/2015] [Indexed: 01/01/2023]
Abstract
Regulatory T cells (Treg cells) limit contact between dendritic cells (DCs) and conventional T cells (Tcons), decreasing the formation of aggregates as well as down-modulating the expression of co-stimulatory molecules by DCs, thus decreasing DC immunogenicity and abrogating T-cell activation. Despite the importance of this Treg-cell function, the capacity of Treg cells from term and preterm neonates to suppress DCs, and the suppressive mechanisms they use, are still undefined. We found that, relative to adult Treg cells, activated Treg cells from human neonates expressed lower FOXP3 and CTLA-4, but contained higher levels of cAMP. We developed an in vitro model in which Treg function was measured at a physiological ratio of 1 Treg for 10 Tcon and 1 monocyte-derived DC, as Treg target. Term and preterm Treg cells failed to suppress the formation of DC-Tcon aggregates, in contrast to naïve and memory Treg cells from adults. However, neonatal Treg cells diminished DC and Tcon activation as well as actin polymerization at the immunological synapses. In addition, CTLA-4 and cAMP were the main suppressive molecules used by neonatal Treg. Altogether, both preterm and term neonatal Treg cells appear less functional than adult Treg cells, and this defect is consistent with the general impairment of CD4 cell function in newborns.
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Affiliation(s)
- Cesar M Rueda
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Maria E Moreno-Fernandez
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Courtney M Jackson
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Suhas G Kallapur
- Division of Neonatology/Pulmonary Biology, the Perinatal Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, OH, USA
| | - Alan H Jobe
- Division of Neonatology/Pulmonary Biology, the Perinatal Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, OH, USA
| | - Claire A Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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26
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Salazar Gonzalez RM, Shehata H, O'Connell MJ, Yang Y, Moreno-Fernandez ME, Chougnet CA, Aliberti J. Toxoplasma gondii- derived profilin triggers human toll-like receptor 5-dependent cytokine production. J Innate Immun 2014; 6:685-94. [PMID: 24861338 DOI: 10.1159/000362367] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 03/20/2014] [Indexed: 11/19/2022] Open
Abstract
Up to a third of the world's population is infected with Toxoplasma gondii. Natural infection in humans can be life threatening during pregnancy and in immunocompromised individuals. Toll-like receptor (TLR) 11 is the mouse innate sensor that recognizes T. gondii profilin; however, in humans the TLR11 gene leads to transcription of no functional protein. Herein, by using a multiple sequence alignment phylogenetic analysis program between human and mouse species, we found that human TLR5 seems to be the evolutionarily closest member of the TLR gene family to mouse tlr11. We therefore asked whether human TLR5 could mediate IL-6, IL-8 and IL-12p70 production in response to the T. gondii profilin. We found that this was the case both in human cell lines as well as peripheral blood monocytes. Moreover, TLR5 neutralization and gene silencing mediated specific ablation of cytokine production after profilin exposure. Finally, peripheral blood monocytes carrying the TLR5 R392X mutation failed to produce cytokines in response to stimulation with profilin. Taken together, the results presented herein reveal a previously unappreciated cross-recognition of a relevant human pathogen-derived pathogen-associated molecular pattern.
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Affiliation(s)
- Rosa Maria Salazar Gonzalez
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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27
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Moreno-Fernandez ME, Joedicke JJ, Chougnet CA. Regulatory T Cells Diminish HIV Infection in Dendritic Cells - Conventional CD4(+) T Cell Clusters. Front Immunol 2014; 5:199. [PMID: 24847325 PMCID: PMC4021135 DOI: 10.3389/fimmu.2014.00199] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 04/22/2014] [Indexed: 01/04/2023] Open
Abstract
Formation of immunological synapses (IS) between dendritic cells (DCs) and conventional CD4(+) T cells (Tcon) is critical for productive immune responses. However, when DCs are HIV-infected such synapses are critical to establish HIV infection. As regulatory T cells (Treg) control DC-Tcon interactions, we inquired whether Treg might interfere with DC to Tcon HIV infection. We developed a model, using monocyte-derived DC infected with R5-HIV, and cultured with Tcon in the presence or absence of autologous Treg, using the physiological ratio of 1 Treg for 10 Tcon. Cultures containing Treg significantly decreased HIV infection in DC:T cell clusters. Notably, Treg appear to have an effect on the quality of the IS, as Treg decreased actin polymerization and DC maturation. Importantly, Treg decreased the trafficking of HIV punctate to the IS. Further, CD152 and cyclic adenosine monophosphate were critical Treg effector molecules, as their individual or simultaneous blockade abolished Treg activity, however no additive effect was found. Together, these data suggest that Treg can reduce HIV dissemination, which may be beneficial to the host in the early stages of infection.
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Affiliation(s)
- Maria E Moreno-Fernandez
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation , Cincinnati, OH , USA ; Immunology Graduate Program, College of Medicine, University of Cincinnati , Cincinnati, OH , USA
| | - Jara J Joedicke
- Institute for Virology, University Hospital Essen, University Duisburg-Essen , Essen , Germany
| | - Claire A Chougnet
- Division of Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Research Foundation , Cincinnati, OH , USA
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28
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Kong L, Cardona Maya W, Moreno-Fernandez ME, Ma G, Shata MT, Sherman KE, Chougnet C, Blackard JT. Low-level HIV infection of hepatocytes. Virol J 2012; 9:157. [PMID: 22877244 PMCID: PMC3607931 DOI: 10.1186/1743-422x-9-157] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 08/02/2012] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND There are only limited data on whether HIV infection occurs within the liver; therefore, we explored early and late stages of the HIV life cycle in two hepatocyte cell lines--Huh7.5 and Huh7.5JFH1--as well as in primary human hepatocytes. RESULTS Integrated HIV DNA was detected in Huh7.5 and Huh7.5JFH1 cells, as well as in primary hepatocytes, and was inhibited by the integrase inhibitor raltegravir in a dose-dependent manner. HIV p24 protein was also detected in cell culture supernatants at days 1, 3, 5, and 7 post-infection and was inhibited by AZT, although levels were modest compared to those in a lymphocyte cell line. Culture supernatants from HIV-infected hepatocytes were capable of infecting a non-hepatic HIV indicator cell line. CONCLUSIONS These results indicating low-level HIV replication in hepatoctyes in vitro complement evidence suggesting that HIV has deleterious effects on the liver in vivo.
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Affiliation(s)
- Ling Kong
- Division of Digestive Diseases, University of Cincinnati College of Medicine, and Cincinnati Children’s Hospital Medical Center, ML 0595, 231 Albert Sabin Way, Cincinnati, OH 45267, USA
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29
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Abstract
Intracellular levels of cyclic adenosine 3',5'-monophosphate (cAMP) are important regulators of immune cells, partially determining the balance between activation and suppression. In this review, we discuss the mechanisms by which HIV infection increases cAMP levels in T cells, as well as the effect of cAMP on HIV-specific responses and its effect on HIV replication and infection. Results suggest that increased cAMP levels during HIV infection may have a dual and opposite roles. On the one hand, they could have a protective effect by limiting viral replication in infected cells and decreasing viral entry. On the other hand, they could have a detrimental role by reducing HIV-specific antiviral immune responses, thus reducing the clearance of the virus and contributing to T cell dysfunction. Future studies are thus needed to further define the beneficial versus detrimental roles of cAMP, as they could help establish new therapeutic targets to combat HIV replication and/or identify novel ways to boost antiviral immune responses.
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Affiliation(s)
- Maria E. Moreno-Fernandez
- Division of Molecular Immunology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, Immunobiology Graduate Program University of Cincinnati, College of Medicine, Cincinnati, Ohio
| | | | - Paula A. Velilla
- Grupo Inmunovirologia, Universidad de Antioquia, Medellin, Antioquia, Colombia
| | | | - Claire A. Chougnet
- Division of Molecular Immunology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, Immunobiology Graduate Program University of Cincinnati, College of Medicine, Cincinnati, Ohio
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30
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Kurtulus S, Tripathi P, Moreno-Fernandez ME, Sholl A, Katz JD, Grimes HL, Hildeman DA. Bcl-2 allows effector and memory CD8+ T cells to tolerate higher expression of Bim. J Immunol 2011; 186:5729-37. [PMID: 21451108 DOI: 10.4049/jimmunol.1100102] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
As acute infections resolve, most effector CD8(+) T cells die, whereas some persist and become memory T cells. Recent work showed that subsets of effector CD8(+) T cells, identified by reciprocal expression of killer cell lectin-like receptor G1 (KLRG1) and CD127, have different lifespans. Similar to previous reports, we found that effector CD8(+) T cells reported to have a longer lifespan (i.e., KLRG1(low)CD127(high)) have increased levels of Bcl-2 compared with their shorter-lived KLRG1(high)CD127(low) counterparts. Surprisingly, we found that these effector KLRG1(low)CD127(high) CD8(+) T cells also had increased levels of Bim compared with KLRG1(high)CD127(low) cells. Similar effects were observed in memory cells, in which CD8(+) central memory T cells expressed higher levels of Bim and Bcl-2 than did CD8(+) effector memory T cells. Using both pharmacologic and genetic approaches, we found that survival of both subsets of effector and memory CD8(+) T cells required Bcl-2 to combat the proapoptotic activity of Bim. Interestingly, inhibition or absence of Bcl-2 led to significantly decreased expression of Bim in surviving effector and memory T cells. In addition, manipulation of Bcl-2 levels by IL-7 or IL-15 also affected expression of Bim in effector CD8(+) T cells. Finally, we found that Bim levels were significantly increased in effector CD8(+) T cells lacking Bax and Bak. Together, these data indicate that cells having the highest levels of Bim are selected against during contraction of the response and that Bcl-2 determines the level of Bim that effector and memory T cells can tolerate.
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Affiliation(s)
- Sema Kurtulus
- Division of Immunobiology, Department of Pediatrics, University of Cincinnati College of Medicine and Children's Hospital Medical Center, Cincinnati, OH 45229, USA
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31
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Presicce P, Moreno-Fernandez ME, Lages CS, Orsborn KI, Chougnet CA. Association of two clones allows for optimal detection of human FOXP3. Cytometry A 2010; 77:571-9. [PMID: 20162533 DOI: 10.1002/cyto.a.20875] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
FOXP3 is a key transcription factor expressed by regulatory T cells (Treg cells). However, differences in staining and analysis protocols have led to conflicting results. Moreover, the transient upregulation of FOXP3 that follows activation in non-Treg cells renders the interpretation of FOXP3 data more difficult in humans than in mice. Human peripheral blood mononuclear cells (PBMCs), isolated CD25(-) or CD25(+)CD4(+) T cells were stained with three different anti-FOXP3 clones (PCH101, 206D, and 259D) alone or in combination, and using different permeabilization methods. FOXP3 expression was evaluated following T cell activation by several pathways. Gating based on a population that did not express FOXP3 (such as CD3(-)CD4(-) T cells) allowed for the optimal characterization of Treg cells. The 206D clone detected a lower percentage of cells than PCH101 or 259D. In contrast, 259D stained a population of activated T cells that PCH101 did not. Staining with two clones together consistently increased the proportion of FOXP3(+) cells. However, it is likely that only the double positive cells are Treg cells, as they expressed the highest CD25 and lowest CD127 levels. Our results emphasize that the choice of staining protocol leads to very different results concerning the frequency of Treg cells in humans. A more consistent identification of these cells will improve the knowledge of their biology, particularly during disease processes.
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Affiliation(s)
- Pietro Presicce
- Division of Molecular Immunology, Cincinnati Children's Hospital Research Foundation and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH45229, USA
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