1
|
van Krieken PP, Odermatt TS, Borsigova M, Blüher M, Wueest S, Konrad D. Oncostatin M suppresses browning of white adipocytes via gp130-STAT3 signaling. Mol Metab 2021; 54:101341. [PMID: 34547509 PMCID: PMC8502775 DOI: 10.1016/j.molmet.2021.101341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 06/02/2021] [Revised: 09/13/2021] [Accepted: 09/13/2021] [Indexed: 01/02/2023] Open
Abstract
Objective Obesity is associated with low-grade adipose tissue inflammation and locally elevated levels of several glycoprotein 130 (gp130) cytokines. The conversion of white into brown-like adipocytes (browning) may increase energy expenditure and revert the positive energy balance that underlies obesity. Although different gp130 cytokines and their downstream targets were shown to regulate expression of the key browning marker uncoupling protein 1 (Ucp1), it remains largely unknown how this contributes to the development and maintenance of obesity. Herein, we aim to study the role of gp130 cytokine signaling in white adipose tissue (WAT) browning in the obese state. Methods Protein and gene expression levels of UCP1 and other thermogenic markers were assessed in a subcutaneous adipocyte cell line, adipose tissue depots from control or adipocyte-specific gp130 knockout (gp130Δadipo) mice fed either chow or a high-fat diet (HFD), or subcutaneous WAT biopsies from a human cohort of lean and obese subjects. WAT browning was modeled in vitro by exposing mature adipocytes to isoproterenol after stimulation with gp130 cytokines. ERK and JAK-STAT signaling were blocked using the inhibitors U0126 and Tofacitinib, respectively. Results Inguinal WAT of HFD-fed gp130Δadipo mice exhibited significantly elevated levels of UCP1 and other browning markers such as Cidea and Pgc-1α. In vitro, treatment with the gp130 cytokine oncostatin M (OSM) lowered isoproterenol-induced UCP1 protein and gene expression levels in a dose-dependent manner. Mechanistically, OSM mediated the inhibition of Ucp1 via the JAK-STAT but not the ERK pathway. As with mouse data, OSM gene expression in human WAT positively correlated with BMI (r = 0.284, p = 0.021, n = 66) and negatively with UCP1 expression (r = −0.413, p < 0.001, n = 66). Conclusions Our data support the notion that OSM negatively regulates thermogenesis in WAT and thus may be an attractive target for treating obesity. OSM is regulated under obesity and negatively correlates with UCP1 in WAT. OSM suppresses isoproterenol-induced UCP1 in subcutaneous adipocytes. OSM signals through the gp130-STAT3 pathway to lower UCP1 expression. Obese mice lacking gp130 in adipocytes exhibit increased WAT browning.
Collapse
Affiliation(s)
- Pim P van Krieken
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland; Children's Research Center, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland
| | - Timothy S Odermatt
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland; Children's Research Center, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland; Zurich Center for Integrative Human Physiology, University of Zurich, CH-8057, Zurich, Switzerland
| | - Marcela Borsigova
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland; Children's Research Center, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland
| | - Matthias Blüher
- Department of Medicine, Endocrinology and Diabetes, University of Leipzig, D-04103, Germany; Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany
| | - Stephan Wueest
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland; Children's Research Center, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland
| | - Daniel Konrad
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland; Children's Research Center, University Children's Hospital, University of Zurich, CH-8032, Zurich, Switzerland; Zurich Center for Integrative Human Physiology, University of Zurich, CH-8057, Zurich, Switzerland.
| |
Collapse
|
2
|
Dedual MA, Wueest S, Challa TD, Lucchini FC, Aeppli TRJ, Borsigova M, Mauracher AA, Vavassori S, Pachlopnik Schmid J, Blüher M, Konrad D. Obesity-Induced Increase in Cystatin C Alleviates Tissue Inflammation. Diabetes 2020; 69:1927-1935. [PMID: 32616516 DOI: 10.2337/db19-1206] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 06/20/2020] [Indexed: 11/13/2022]
Abstract
We recently demonstrated that removal of one kidney (uninephrectomy [UniNx]) in mice reduced high-fat diet (HFD)-induced adipose tissue inflammation, thereby improving adipose tissue and hepatic insulin sensitivity. Of note, circulating cystatin C (CysC) levels were increased in UniNx compared with sham-operated mice. Importantly, CysC may have anti-inflammatory properties, and circulating CysC levels were reported to positively correlate with obesity in humans and as shown here in HFD-fed mice. However, the causal relationship of such observation remains unclear. HFD feeding of CysC-deficient (CysC knockout [KO]) mice worsened obesity-associated adipose tissue inflammation and dysfunction, as assessed by proinflammatory macrophage accumulation. In addition, mRNA expression of proinflammatory mediators was increased, whereas markers of adipocyte differentiation were decreased. Similar to findings in adipose tissue, expression of proinflammatory cytokines was increased in liver and skeletal muscle of CysC KO mice. In line, HFD-induced hepatic insulin resistance and impairment of glucose tolerance were further aggravated in KO mice. Consistently, chow-fed CysC KO mice were more susceptible to lipopolysaccharide-induced adipose tissue inflammation. In people with obesity, circulating CysC levels correlated negatively with adipose tissue Hif1α as well as IL6 mRNA expression. Moreover, healthy (i.e., insulin-sensitive) subjects with obesity had significantly higher mRNA expression of CysC in white adipose tissue. In conclusion, CysC is upregulated under obesity conditions and thereby counteracts inflammation of peripheral insulin-sensitive tissues and, thus, obesity-associated deterioration of glucose metabolism.
Collapse
Affiliation(s)
- Mara A Dedual
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Stephan Wueest
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Tenagne D Challa
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Fabrizio C Lucchini
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Tim R J Aeppli
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Marcela Borsigova
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Andrea A Mauracher
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Division of Pediatric Immunology, University Children's Hospital, Zurich, Switzerland
| | - Stefano Vavassori
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Division of Pediatric Immunology, University Children's Hospital, Zurich, Switzerland
| | - Jana Pachlopnik Schmid
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Division of Pediatric Immunology, University Children's Hospital, Zurich, Switzerland
| | - Matthias Blüher
- Department of Medicine, Endocrinology and Diabetes, University of Leipzig, Leipzig, Germany
| | - Daniel Konrad
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| |
Collapse
|
3
|
Abstract
Four days of high-fat diet (HFD) feeding are sufficient to induce glucose intolerance and hepatic steatosis in mice. While prolonged HFD-induced metabolic complications are partly mediated by increased food intake during the light (inactive) phase, such a link has not yet been established in short-term HFD-fed mice. Herein, we hypothesized that a short bout of HFD desynchronizes feeding behavior, thereby contributing to glucose intolerance and hepatic steatosis. To this end, 12-wk-old C57BL/6J littermates were fed a HFD for 4 days either ad libitum or intermittently. Intermittent-fed mice were fasted for 8 h during their inactive phase. Initiation of HFD led to an immediate increase in food intake already during the first light phase. Moreover, glucose tolerance was significantly impaired in ad libitum- but not in intermittent HFD-fed mice, indicating that desynchronized feeding behavior contributes to short-term HFD-induced glucose intolerance. Of note, overall food intake was similar between the groups, as was body weight. However, intermittent HFD-fed mice revealed higher fat depot weights. Phosphorylation of hormone sensitivity lipase and free fatty acid release from isolated adipocytes were significantly elevated, suggesting increased lipolysis in intermittent HFD-fed mice. Moreover, hepatic mRNA expression of lipogenetic enzymes and liver triglyceride levels were significantly increased in intermittent HFD-fed mice. Importantly, food deprivation decreased respiratory exchange ratio promptly in intermittent- but not in ad libitum HFD-fed mice. In conclusion, retaining a normal feeding pattern prevented HFD-induced impairment of metabolic flexibility in short-term HFD-fed mice.
Collapse
Affiliation(s)
- Mara A Dedual
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Stephan Wueest
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Marcela Borsigova
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Daniel Konrad
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| |
Collapse
|
4
|
Challa TD, Wueest S, Lucchini FC, Dedual M, Modica S, Borsigova M, Wolfrum C, Blüher M, Konrad D. Liver ASK1 protects from non-alcoholic fatty liver disease and fibrosis. EMBO Mol Med 2019; 11:e10124. [PMID: 31595673 PMCID: PMC6783644 DOI: 10.15252/emmm.201810124] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [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: 11/25/2018] [Revised: 04/30/2019] [Accepted: 05/03/2019] [Indexed: 12/15/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is strongly associated with obesity and may progress to non-alcoholic steatohepatitis (NASH) and liver fibrosis. The deficit of pharmacological therapies for the latter mainly results from an incomplete understanding of involved pathological mechanisms. Herein, we identify apoptosis signal-regulating kinase 1 (ASK1) as a suppressor of NASH and fibrosis formation. High-fat diet-fed and aged chow-fed liver-specific ASK1-knockout mice develop a higher degree of hepatic steatosis, inflammation, and fibrosis compared to controls. In addition, pharmacological inhibition of ASK1 increased hepatic lipid accumulation in wild-type mice. In line, liver-specific ASK1 overexpression protected mice from the development of high-fat diet-induced hepatic steatosis and carbon tetrachloride-induced fibrosis. Mechanistically, ASK1 depletion blunts autophagy, thereby enhancing lipid droplet accumulation and liver fibrosis. In human livers of lean and obese subjects, ASK1 expression correlated negatively with liver fat content and NASH scores, but positively with markers for autophagy. Taken together, ASK1 may be a novel therapeutic target to tackle NAFLD and liver fibrosis.
Collapse
Affiliation(s)
- Tenagne D Challa
- Division of Pediatric Endocrinology and DiabetologyUniversity Children's HospitalZurichSwitzerland
- Children's Research CenterUniversity Children's HospitalZurichSwitzerland
| | - Stephan Wueest
- Division of Pediatric Endocrinology and DiabetologyUniversity Children's HospitalZurichSwitzerland
- Children's Research CenterUniversity Children's HospitalZurichSwitzerland
| | - Fabrizio C Lucchini
- Division of Pediatric Endocrinology and DiabetologyUniversity Children's HospitalZurichSwitzerland
- Children's Research CenterUniversity Children's HospitalZurichSwitzerland
- Zurich Center for Integrative Human PhysiologyUniversity of ZurichZurichSwitzerland
| | - Mara Dedual
- Division of Pediatric Endocrinology and DiabetologyUniversity Children's HospitalZurichSwitzerland
- Children's Research CenterUniversity Children's HospitalZurichSwitzerland
- Zurich Center for Integrative Human PhysiologyUniversity of ZurichZurichSwitzerland
| | - Salvatore Modica
- Institute of Food, Nutrition and HealthETH ZurichSchwerzenbachSwitzerland
| | - Marcela Borsigova
- Division of Pediatric Endocrinology and DiabetologyUniversity Children's HospitalZurichSwitzerland
- Children's Research CenterUniversity Children's HospitalZurichSwitzerland
| | - Christian Wolfrum
- Institute of Food, Nutrition and HealthETH ZurichSchwerzenbachSwitzerland
| | | | - Daniel Konrad
- Division of Pediatric Endocrinology and DiabetologyUniversity Children's HospitalZurichSwitzerland
- Children's Research CenterUniversity Children's HospitalZurichSwitzerland
- Zurich Center for Integrative Human PhysiologyUniversity of ZurichZurichSwitzerland
| |
Collapse
|
5
|
Odermatt TS, Dedual MA, Borsigova M, Wueest S, Konrad D. Adipocyte-specific gp130 signalling mediates exercise-induced weight reduction. Int J Obes (Lond) 2019; 44:707-714. [PMID: 31467419 DOI: 10.1038/s41366-019-0444-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 07/02/2019] [Accepted: 07/15/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND Repetitive physical activity is a well-established intervention to reduce obesity and to prevent weight regain. Besides increased energy expenditure, reduced caloric intake may contribute to exercise-induced weight loss in obesity. Using adipocyte-specific glycoprotein 130 knockout (gp130Δadipo) mice, we recently unravelled that obesity-induced interleukin-6 (IL-6) signalling in adipose tissue contributes to circulating levels of the two anorectic hormones leptin and insulin. Herein, we aimed to investigate the role of adipocyte-specific IL-6 signalling in exercise-mediated appetite control and, hence, weight reduction in obesity. METHODS gp130Δadipo and control littermate mice (gp130F/F) were repetitively exercised during a 12-week period of HFD-feeding. Thermogenesis was determined using thermography and food intake as well as energy expenditure were assessed in metabolic cages. Circulating IL-6, insulin and leptin levels were measured using immunoassays. Protein levels of phosphorylated STAT3, JAK2 and Akt were determined in the hypothalamus by Western blot technique. RESULTS Repetitive physical activity reduced food intake and HFD-induced weight gain in gp130F/F but not gp130Δadipo mice. In contrast, energy expenditure was not different between the genotypes. Circulating insulin and leptin levels were significantly reduced in gp130Δadipo mice. Moreover, hypothalamic leptin and insulin signalling were enhanced in exercised gp130F/F but not gp130Δadipo mice as demonstrated by elevated pSTAT3, pJAK2 and pAkt protein levels. CONCLUSION Adipocyte-specific IL-6 signalling is involved in exercise-mediated regulation of food intake and weight reduction in HFD-fed mice.
Collapse
Affiliation(s)
- Timothy S Odermatt
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland.,Children's Research Center, University Children's Hospital, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Mara A Dedual
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland.,Children's Research Center, University Children's Hospital, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Marcela Borsigova
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland.,Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Stephan Wueest
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland.,Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Daniel Konrad
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland. .,Children's Research Center, University Children's Hospital, Zurich, Switzerland. .,Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland.
| |
Collapse
|
6
|
Wueest S, Laesser CI, Böni-Schnetzler M, Item F, Lucchini FC, Borsigova M, Müller W, Donath MY, Konrad D. IL-6-Type Cytokine Signaling in Adipocytes Induces Intestinal GLP-1 Secretion. Diabetes 2018; 67:36-45. [PMID: 29066599 DOI: 10.2337/db17-0637] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 10/15/2017] [Indexed: 11/13/2022]
Abstract
We recently showed that interleukin (IL)-6-type cytokine signaling in adipocytes induces free fatty acid release from visceral adipocytes, thereby promoting obesity-induced hepatic insulin resistance and steatosis. In addition, IL-6-type cytokines may increase the release of leptin from adipocytes and by those means induce glucagon-like peptide 1 (GLP-1) secretion. We thus hypothesized that IL-6-type cytokine signaling in adipocytes may regulate insulin secretion. To this end, mice with adipocyte-specific knockout of gp130, the signal transducer protein of IL-6, were fed a high-fat diet for 12 weeks. Compared with control littermates, knockout mice showed impaired glucose tolerance and circulating leptin, GLP-1, and insulin levels were reduced. In line, leptin release from isolated adipocytes was reduced, and intestinal proprotein convertase subtilisin/kexin type 1 (Pcsk1) expression, the gene encoding PC1/3, which controls GLP-1 production, was decreased in knockout mice. Importantly, treatment with the GLP-1 receptor antagonist exendin 9-39 abolished the observed difference in glucose tolerance between control and knockout mice. Ex vivo, supernatant collected from isolated adipocytes of gp130 knockout mice blunted Pcsk1 expression and GLP-1 release from GLUTag cells. In contrast, glucose- and GLP-1-stimulated insulin secretion was not affected in islets of knockout mice. In conclusion, adipocyte-specific IL-6 signaling induces intestinal GLP-1 release to enhance insulin secretion, thereby counteracting insulin resistance in obesity.
Collapse
Affiliation(s)
- Stephan Wueest
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Céline I Laesser
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Marianne Böni-Schnetzler
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Department Biomedicine, University of Basel, Basel, Switzerland
| | - Flurin Item
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Fabrizio C Lucchini
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Marcela Borsigova
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Werner Müller
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, U.K
| | - Marc Y Donath
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Department Biomedicine, University of Basel, Basel, Switzerland
| | - Daniel Konrad
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| |
Collapse
|
7
|
Dalmas E, Lehmann FM, Dror E, Wueest S, Thienel C, Borsigova M, Stawiski M, Traunecker E, Lucchini FC, Dapito DH, Kallert SM, Guigas B, Pattou F, Kerr-Conte J, Maechler P, Girard JP, Konrad D, Wolfrum C, Böni-Schnetzler M, Finke D, Donath MY. Interleukin-33-Activated Islet-Resident Innate Lymphoid Cells Promote Insulin Secretion through Myeloid Cell Retinoic Acid Production. Immunity 2017; 47:928-942.e7. [PMID: 29166590 DOI: 10.1016/j.immuni.2017.10.015] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 07/24/2017] [Accepted: 10/26/2017] [Indexed: 01/04/2023]
Abstract
Pancreatic-islet inflammation contributes to the failure of β cell insulin secretion during obesity and type 2 diabetes. However, little is known about the nature and function of resident immune cells in this context or in homeostasis. Here we show that interleukin (IL)-33 was produced by islet mesenchymal cells and enhanced by a diabetes milieu (glucose, IL-1β, and palmitate). IL-33 promoted β cell function through islet-resident group 2 innate lymphoid cells (ILC2s) that elicited retinoic acid (RA)-producing capacities in macrophages and dendritic cells via the secretion of IL-13 and colony-stimulating factor 2. In turn, local RA signaled to the β cells to increase insulin secretion. This IL-33-ILC2 axis was activated after acute β cell stress but was defective during chronic obesity. Accordingly, IL-33 injections rescued islet function in obese mice. Our findings provide evidence that an immunometabolic crosstalk between islet-derived IL-33, ILC2s, and myeloid cells fosters insulin secretion.
Collapse
Affiliation(s)
- Elise Dalmas
- Clinic of Endocrinology, Diabetes and Metabolism University Hospital Basel, 4031 Basel, Switzerland; Department of Biomedicine, University of Basel, 4031 Basel, Switzerland.
| | - Frank M Lehmann
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland; University of Basel, Children's Hospital, 4056 Basel, Switzerland
| | - Erez Dror
- Clinic of Endocrinology, Diabetes and Metabolism University Hospital Basel, 4031 Basel, Switzerland; Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Stephan Wueest
- Department of Pediatric Endocrinology and Diabetology and Children's Research Center, University Children's Hospital, Steinwiesstrasse 75, 8032 Zurich, Switzerland
| | - Constanze Thienel
- Clinic of Endocrinology, Diabetes and Metabolism University Hospital Basel, 4031 Basel, Switzerland; Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Marcela Borsigova
- Clinic of Endocrinology, Diabetes and Metabolism University Hospital Basel, 4031 Basel, Switzerland; Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Marc Stawiski
- Clinic of Endocrinology, Diabetes and Metabolism University Hospital Basel, 4031 Basel, Switzerland; Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | | | - Fabrizio C Lucchini
- Department of Pediatric Endocrinology and Diabetology and Children's Research Center, University Children's Hospital, Steinwiesstrasse 75, 8032 Zurich, Switzerland
| | - Dianne H Dapito
- Institute of Food, Nutrition, and Health, ETH-Zürich, Schorenstrasse 16, 8603 Schwerzenbach, Switzerland
| | - Sandra M Kallert
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Bruno Guigas
- Department of Parasitology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands; Department of Molecular Cell Biology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Francois Pattou
- University Lille, INSERM, CHU Lille, U1190 Translational Research for Diabetes, European Genomic Institute for Diabetes, EGID, 59000 Lille, France
| | - Julie Kerr-Conte
- University Lille, INSERM, CHU Lille, U1190 Translational Research for Diabetes, European Genomic Institute for Diabetes, EGID, 59000 Lille, France
| | - Pierre Maechler
- Department of Cell Physiology and Metabolism and Faculty Diabetes Center, Geneva University Medical Centre, Geneva, Switzerland
| | - Jean-Philippe Girard
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, 31077 Toulouse, France
| | - Daniel Konrad
- Department of Pediatric Endocrinology and Diabetology and Children's Research Center, University Children's Hospital, Steinwiesstrasse 75, 8032 Zurich, Switzerland
| | - Christian Wolfrum
- Institute of Food, Nutrition, and Health, ETH-Zürich, Schorenstrasse 16, 8603 Schwerzenbach, Switzerland
| | - Marianne Böni-Schnetzler
- Clinic of Endocrinology, Diabetes and Metabolism University Hospital Basel, 4031 Basel, Switzerland; Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Daniela Finke
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland; University of Basel, Children's Hospital, 4056 Basel, Switzerland
| | - Marc Y Donath
- Clinic of Endocrinology, Diabetes and Metabolism University Hospital Basel, 4031 Basel, Switzerland; Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| |
Collapse
|