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Thiran A, Petta I, Blancke G, Thorp M, Planckaert G, Jans M, Andries V, Barbry K, Gilis E, Coudenys J, Hochepied T, Vanhove C, Gracey E, Dumas E, Manuelo T, Josipovic I, van Loo G, Elewaut D, Vereecke L. Sterile triggers drive joint inflammation in TNF- and IL-1β-dependent mouse arthritis models. EMBO Mol Med 2023; 15:e17691. [PMID: 37694693 PMCID: PMC10565626 DOI: 10.15252/emmm.202317691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/12/2023] Open
Abstract
Arthritis is the most common extra-intestinal complication in inflammatory bowel disease (IBD). Conversely, arthritis patients are at risk for developing IBD and often display subclinical gut inflammation. These observations suggest a shared disease etiology, commonly termed "the gut-joint-axis." The clinical association between gut and joint inflammation is further supported by the success of common therapeutic strategies and microbiota dysbiosis in both conditions. Most data, however, support a correlative relationship between gut and joint inflammation, while causative evidence is lacking. Using two independent transgenic mouse arthritis models, either TNF- or IL-1β dependent, we demonstrate that arthritis develops independently of the microbiota and intestinal inflammation, since both lines develop full-blown articular inflammation under germ-free conditions. In contrast, TNF-driven gut inflammation is fully rescued in germ-free conditions, indicating that the microbiota is driving TNF-induced gut inflammation. Together, our study demonstrates that although common inflammatory pathways may drive both gut and joint inflammation, the molecular triggers initiating such pathways are distinct in these tissues.
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Geudens V, Van Slambrouck J, Aerts G, Willems L, Goos T, Kaes J, Zajacova A, Gyselinck I, Aelbrecht C, Vermaut A, Beeckmans H, Vermant M, De Fays C, Sacreas A, Aversa L, Orlitova M, Vanstapel A, Josipovic I, Boone MN, McDonough JE, Weynand B, Pilette C, Janssens W, Dupont L, Wuyts WA, Verleden GM, Van Raemdonck DE, Vos R, Gayan-Ramirez G, Ceulemans LJ, Vanaudenaerde BM. COVID-19 progression in hospitalized patients using follow-up in vivo CT and ex vivo microCT. J Thorac Dis 2023; 15:3646-3661. [PMID: 37559650 PMCID: PMC10407474 DOI: 10.21037/jtd-22-1488] [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] [Received: 10/21/2022] [Accepted: 05/31/2023] [Indexed: 08/11/2023]
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease-19 (COVID-19) which can lead to acute respiratory distress syndrome (ARDS) and evolve to pulmonary fibrosis. Computed tomography (CT) is used to study disease progression and describe radiological patterns in COVID-19 patients. This study aimed to assess disease progression regarding lung volume and density over time on follow-up in vivo chest CT and give a unique look at parenchymal and morphological airway changes in "end-stage" COVID-19 lungs using ex vivo microCT. METHODS Volumes and densities of the lung/lobes of three COVID-19 patients were assessed using follow-up in vivo CT and ex vivo whole lung microCT scans. Airways were quantified by airway segmentations on whole lung microCT and small-partition microCT. As controls, three discarded healthy donor lungs were used. Histology was performed in differently affected regions in the COVID-19 lungs. RESULTS In vivo, COVID-19 lung volumes decreased while density increased over time, mainly in lower lobes as previously shown. Ex vivo COVID-19 lung volumes decreased by 60% and all lobes were smaller compared to controls. Airways were more visible on ex vivo microCT in COVID-19, probably due to fibrosis and increased airway diameter. In addition, small-partition microCT showed more deformation of (small) airway morphology and fibrotic organization in severely affected regions with heterogeneous distributions within the same lung which was confirmed by histology. CONCLUSIONS COVID-19-ARDS and subsequent pulmonary fibrosis alters lung architecture and airway morphology which is described using in vivo CT, ex vivo microCT, and histology.
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Affiliation(s)
- Vincent Geudens
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Jan Van Slambrouck
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Gitte Aerts
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Lynn Willems
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Tinne Goos
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Janne Kaes
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Andrea Zajacova
- Prague Lung Transplant Program, Department of Pneumology, Motol University Hospital, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Iwein Gyselinck
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Celine Aelbrecht
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Astrid Vermaut
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Hanne Beeckmans
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Marie Vermant
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Charlotte De Fays
- Department of Pneumology, Cliniques Universitaires Saint-Luc, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
| | - Annelore Sacreas
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Lucia Aversa
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Michaela Orlitova
- Division of Anesthesiology and Algology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Arno Vanstapel
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Ivan Josipovic
- Department of Physics and Astronomy, Centre for X-Ray Tomography (UGCT), Radiation Physics, Ghent University, Gent, Belgium
| | - Matthieu N. Boone
- Department of Physics and Astronomy, Centre for X-Ray Tomography (UGCT), Radiation Physics, Ghent University, Gent, Belgium
| | - John E. McDonough
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Birgit Weynand
- Department of Imaging & Pathology, KU Leuven, Leuven, Belgium
| | - Charles Pilette
- Department of Pneumology, Cliniques Universitaires Saint-Luc, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
| | - Wim Janssens
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Lieven Dupont
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Wim A. Wuyts
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Geert M. Verleden
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Dirk E. Van Raemdonck
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Robin Vos
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Ghislaine Gayan-Ramirez
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Laurens J. Ceulemans
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Bart M. Vanaudenaerde
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
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Kerckhof P, Ambrosio G, Beeckmans H, Kaes J, Geudens V, Slambrouck J, Bos S, Vermant M, Aelbrecht C, Lynn W, Astrid V, Aversa L, Mohamady Y, Jin X, Charlotte D, Goos T, Iwein G, Vanstapel A, Orlitova M, Boone M, Janssens W, Josipovic I, Varghese V, Dupont L, Godinas L, Verleden G, Van Raemdonck D, Ceulemans L, Neyrinck A, McDonough J, Gayan-Ramirez G, Vanaudenaerde B, Vos R. Morphometric Airway Changes in Explanted Human Lungs with Chronic Lung Allograft Dysfunction. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Josipovic I, Fork C, Preussner J, Prior KK, Iloska D, Vasconez AE, Labocha S, Angioni C, Thomas D, Ferreirós N, Looso M, Pullamsetti SS, Geisslinger G, Steinhilber D, Brandes RP, Leisegang MS. PAFAH1B1 and the lncRNA NONHSAT073641 maintain an angiogenic phenotype in human endothelial cells. Acta Physiol (Oxf) 2016; 218:13-27. [PMID: 27124368 DOI: 10.1111/apha.12700] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 04/25/2016] [Accepted: 04/25/2016] [Indexed: 11/26/2022]
Abstract
AIM Platelet-activating factor acetyl hydrolase 1B1 (PAFAH1B1, also known as Lis1) is a protein essentially involved in neurogenesis and mostly studied in the nervous system. As we observed a significant expression of PAFAH1B1 in the vascular system, we hypothesized that PAFAH1B1 is important during angiogenesis of endothelial cells as well as in human vascular diseases. METHOD The functional relevance of the protein in endothelial cell angiogenic function, its downstream targets and the influence of NONHSAT073641, a long non-coding RNA (lncRNA) with 92% similarity to PAFAH1B1, were studied by knockdown and overexpression in human umbilical vein endothelial cells (HUVEC). RESULTS Knockdown of PAFAH1B1 led to impaired tube formation of HUVEC and decreased sprouting in the spheroid assay. Accordingly, the overexpression of PAFAH1B1 increased tube number, sprout length and sprout number. LncRNA NONHSAT073641 behaved similarly. Microarray analysis after PAFAH1B1 knockdown and its overexpression indicated that the protein maintains Matrix Gla Protein (MGP) expression. Chromatin immunoprecipitation experiments revealed that PAFAH1B1 is required for active histone marks and proper binding of RNA Polymerase II to the transcriptional start site of MGP. MGP itself was required for endothelial angiogenic capacity and knockdown of both, PAFAH1B1 and MGP, reduced migration. In vascular samples of patients with chronic thromboembolic pulmonary hypertension (CTEPH), PAFAH1B1 and MGP were upregulated. The function of PAFAH1B1 required the presence of the intact protein as overexpression of NONHSAT073641, which was highly upregulated during CTEPH, did not affect PAFAH1B1 target genes. CONCLUSION PAFAH1B1 and NONHSAT073641 are important for endothelial angiogenic function.
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Affiliation(s)
- I Josipovic
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt, Germany
- German Center for Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt, Germany
| | - C Fork
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt, Germany
- German Center for Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt, Germany
| | - J Preussner
- Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - K-K Prior
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt, Germany
- German Center for Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt, Germany
| | - D Iloska
- Department of Lung Development and Remodeling, German Center for Lung Research (DZL), Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - A E Vasconez
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt, Germany
- German Center for Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt, Germany
| | - S Labocha
- Pharmazentrum Frankfurt, Institute of Clinical Pharmacology, Goethe-University, Frankfurt, Germany
| | - C Angioni
- Pharmazentrum Frankfurt, Institute of Clinical Pharmacology, Goethe-University, Frankfurt, Germany
| | - D Thomas
- Pharmazentrum Frankfurt, Institute of Clinical Pharmacology, Goethe-University, Frankfurt, Germany
| | - N Ferreirós
- Pharmazentrum Frankfurt, Institute of Clinical Pharmacology, Goethe-University, Frankfurt, Germany
| | - M Looso
- Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - S S Pullamsetti
- Department of Lung Development and Remodeling, German Center for Lung Research (DZL), Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
- Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - G Geisslinger
- Pharmazentrum Frankfurt, Institute of Clinical Pharmacology, Goethe-University, Frankfurt, Germany
| | - D Steinhilber
- Institute of Pharmaceutical Chemistry/ZAFES, Goethe-University, Frankfurt, Germany
| | - R P Brandes
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt, Germany
- German Center for Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt, Germany
| | - M S Leisegang
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt, Germany
- German Center for Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt, Germany
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