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Hutschalik T, Özgül O, Casini M, Szabó B, Peyronnet R, Bártulos Ó, Argenziano M, Schotten U, Matsa E. Immune response caused by M1 macrophages elicits atrial fibrillation-like phenotypes in coculture model with isogenic hiPSC-derived cardiomyocytes. Stem Cell Res Ther 2024; 15:280. [PMID: 39227896 DOI: 10.1186/s13287-024-03814-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 06/24/2024] [Indexed: 09/05/2024] Open
Abstract
BACKGROUND Atrial fibrillation has an estimated prevalence of 1.5-2%, making it the most common cardiac arrhythmia. The processes that cause and sustain the disease are still not completely understood. An association between atrial fibrillation and systemic, as well as local, inflammatory processes has been reported. However, the exact mechanisms underlying this association have not been established. While it is understood that inflammatory macrophages can influence cardiac electrophysiology, a direct, causative relationship to atrial fibrillation has not been described. This study investigated the pro-arrhythmic effects of activated M1 macrophages on human induced pluripotent stem cell (hiPSC)-derived atrial cardiomyocytes, to propose a mechanistic link between inflammation and atrial fibrillation. METHODS Two hiPSC lines from healthy individuals were differentiated to atrial cardiomyocytes and M1 macrophages and integrated in an isogenic, pacing-free, atrial fibrillation-like coculture model. Electrophysiology characteristics of cocultures were analysed for beat rate irregularity, electrogram amplitude and conduction velocity using multi electrode arrays. Cocultures were additionally treated using glucocorticoids to suppress M1 inflammation. Bulk RNA sequencing was performed on coculture-isolated atrial cardiomyocytes and compared to meta-analyses of atrial fibrillation patient transcriptomes. RESULTS Multi electrode array recordings revealed M1 to cause irregular beating and reduced electrogram amplitude. Conduction analysis further showed significantly lowered conduction homogeneity in M1 cocultures. Transcriptome sequencing revealed reduced expression of key cardiac genes such as SCN5A, KCNA5, ATP1A1, and GJA5 in the atrial cardiomyocytes. Meta-analysis of atrial fibrillation patient transcriptomes showed high correlation to the in vitro model. Treatment of the coculture with glucocorticoids showed reversal of phenotypes, including reduced beat irregularity, improved conduction, and reversed RNA expression profiles. CONCLUSIONS This study establishes a causal relationship between M1 activation and the development of subsequent atrial arrhythmia, documented as irregularity in spontaneous electrical activation in atrial cardiomyocytes cocultured with activated macrophages. Further, beat rate irregularity could be alleviated using glucocorticoids. Overall, these results point at macrophage-mediated inflammation as a potential AF induction mechanism and offer new targets for therapeutic development. The findings strongly support the relevance of the proposed hiPSC-derived coculture model and present it as a first of its kind disease model.
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Affiliation(s)
- Thomas Hutschalik
- Ncardia Services B.V, J.H. Oortweg 21, 2333 CH, Leiden, The Netherlands
- Dept. of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Ozan Özgül
- Dept. of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Marilù Casini
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, 46026, Valencia, Spain
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg Bad Krozingen and Faculty of Medicine, Freiburg im Breisgau, 79110, Germany
| | - Brigitta Szabó
- Ncardia Services B.V, J.H. Oortweg 21, 2333 CH, Leiden, The Netherlands
| | - Rémi Peyronnet
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg Bad Krozingen and Faculty of Medicine, Freiburg im Breisgau, 79110, Germany
| | - Óscar Bártulos
- Ncardia Services B.V, J.H. Oortweg 21, 2333 CH, Leiden, The Netherlands
| | | | - Ulrich Schotten
- Dept. of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
- Dept. of Cardiology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Elena Matsa
- Ncardia Services B.V, J.H. Oortweg 21, 2333 CH, Leiden, The Netherlands.
- , Rue Edouard Belin 2, 1435, CellisticMont-Saint-Guibert, Belgium.
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland.
- National Institute for Bioprocessing Research and Training, Dublin, Ireland.
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Jing J, Xiang X, Tang J, Wang L, Jia G, Liu G, Chen X, Tian G, Cai J, Kang B, Zhao H. Hydroxy Selenomethionine Exert Different Protective Effects Against Dietary Oxidative Stress-Induced Inflammatory Responses in Spleen and Thymus of Pigs. Biol Trace Elem Res 2024; 202:3107-3118. [PMID: 37910261 DOI: 10.1007/s12011-023-03925-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/21/2023] [Indexed: 11/03/2023]
Abstract
Oxidative stress (OS) is widespread in animal husbandry, which causes edema in immune organs and suppresses immune function of animals. Selenium (Se) is an essential trace element involved in immune regulation and improves animals' immunity. In present study, growing and finishing pigs were used to determine the protective effects of the new organic Se (hydroxy selenomethionine, OH-SeMet) on dietary oxidative stress (DOS) induced inflammatory responses, and the corresponding response of selenotranscriptome in spleen and thymus. Forty castrated male pigs (25.0 ± 3.0 kg) were randomly grouped into 5 dietary treatments (n = 8) and fed on basal diet (formulated with normal corn and normal oils) or oxidized diet (formulated with aged corn and oxidized oils) supplied with 0.0, 0.3, 0.6, or 0.9 mg Se/kg OH-SeMet, after 16 weeks, the corresponding indicators were determined. Results showed that DOS moderately increased the spleen and thymus index, decreased the antioxidant capacity of serum, spleen and thymus, and increased the concentration of serum inflammatory cytokines (IL-6 and TNF-α). The inflammatory response in spleen and thymus under DOS were discrepancies, DOS increased the expression of inflammation-related gene (IFN-β and TNF-α) in thymus, while exhibited no impact on that of the spleen. Dietary OH-SeMet supplementation exhibited protective effects, which decreased the spleen and thymus index, improved the antioxidant capacity of serum, spleen and thymus, and decreased the serum IL-1β and IL-6 levels. Se supplementation exhibited limited impact on the inflammation-related genes in spleen, except decreased the mRNA expression of IL-8. On the contrary, Se supplementation showed more impact on that of the thymus, which decreased the mRNA expression of IL-8 and TNF-α, increased the expression of IFN-β, IL-6, IL-10, and MCP1. In addition, selenotranscriptome responsive to dietary Se levels in spleen and thymus were discrepancies. Se supplementation increased the mRNA expression of the selenotranscriptome in thymus, while exhibited limited impact on that of in spleen. In conclusion, dietary OH-SeMet supplementation mitigates the DOS-induced immunological stress by increasing the antioxidant capacity and altering the expression of inflammation-related genes and selenotranscriptome in immune organs, and these response in spleen and thymus were discrepancies.
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Affiliation(s)
- Jinzhong Jing
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xiaoyu Xiang
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Jiayong Tang
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Longqiong Wang
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Gang Jia
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Guangmang Liu
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xiaoling Chen
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Gang Tian
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Jingyi Cai
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Bo Kang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Hua Zhao
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
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Kasica N, Kaleczyc J. Xanthohumol, a prenylated flavonoid from hops (Humulus lupulus L.) exerts multidirectional pro-healing properties towards damaged zebrafish hair cells by regulating the innate immune response. Toxicol Appl Pharmacol 2024; 483:116809. [PMID: 38211931 DOI: 10.1016/j.taap.2024.116809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/18/2023] [Accepted: 01/08/2024] [Indexed: 01/13/2024]
Abstract
Xanthohumol (XN) is a prominent prenylated flavonoid present in the hop plant (Humulus lupulus L.). Despite undoubted pro-healing properties of hop plant, there is still a need for clinical investigations confirming these effects as well as the underlying molecular mechanisms. The present study was designed to (1) establish the role of XN in non-invasive inflammation induced by chemical damage to zebrafish hair cells, (2) clarify if it influences cell injury severity, neutrophil migration, macrophage activation, cell regeneration, and (3) find out whether it modulates the gene expression profile of chosen immune and stress response markers. All experiments were performed on 3 dpf zebrafish larvae. After fertilization the embryos were transferred to appropriate XN solutions (0.1 μM, 0.3 μM and 0.5 μM). The 40 min 10 μM CuSO4 exposure evoked severe damage to posterior lateral line hair cells triggering a robust acute inflammatory response. Four readouts were selected as the indicators of XN role in the process of inflammation: 1) hair cell death, 2) neutrophil migration towards damaged hair cells, 3) macrophage activation and recruitment to damaged hair cells, 4) hair cell regeneration. The assessments involved in vivo confocal microscopy imaging and qPCR based molecular analysis. It was demonstrated that XN (1) influences death pathway of damaged hair cells by redirecting their severe necrotic phenotype into apoptotic one, (2) impacts the immune response via regulating neutrophil migration, macrophage recruitment and activation (3) modulates gene expression of immune system markers and (4) accelerates hair cell regeneration.
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Affiliation(s)
- Natalia Kasica
- Department of Animal Anatomy, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
| | - Jerzy Kaleczyc
- Department of Animal Anatomy, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
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Kauffenstein G, Martin L, Le Saux O. The Purinergic Nature of Pseudoxanthoma Elasticum. BIOLOGY 2024; 13:74. [PMID: 38392293 PMCID: PMC10886499 DOI: 10.3390/biology13020074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/13/2024] [Accepted: 01/19/2024] [Indexed: 02/24/2024]
Abstract
Pseudoxanthoma Elasticum (PXE) is an inherited disease characterized by elastic fiber calcification in the eyes, the skin and the cardiovascular system. PXE results from mutations in ABCC6 that encodes an ABC transporter primarily expressed in the liver and kidneys. It took nearly 15 years after identifying the gene to better understand the etiology of PXE. ABCC6 function facilitates the efflux of ATP, which is sequentially hydrolyzed by the ectonucleotidases ENPP1 and CD73 into pyrophosphate (PPi) and adenosine, both inhibitors of calcification. PXE, together with General Arterial Calcification of Infancy (GACI caused by ENPP1 mutations) as well as Calcification of Joints and Arteries (CALJA caused by NT5E/CD73 mutations), forms a disease continuum with overlapping phenotypes and shares steps of the same molecular pathway. The explanation of these phenotypes place ABCC6 as an upstream regulator of a purinergic pathway (ABCC6 → ENPP1 → CD73 → TNAP) that notably inhibits mineralization by maintaining a physiological Pi/PPi ratio in connective tissues. Based on a review of the literature and our recent experimental data, we suggest that PXE (and GACI/CALJA) be considered as an authentic "purinergic disease". In this article, we recapitulate the pathobiology of PXE and review molecular and physiological data showing that, beyond PPi deficiency and ectopic calcification, PXE is associated with wide and complex alterations of purinergic systems. Finally, we speculate on the future prospects regarding purinergic signaling and other aspects of this disease.
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Affiliation(s)
- Gilles Kauffenstein
- UMR INSERM 1260, Regenerative Nanomedicine, University of Strasbourg, 67084 Strasbourg, France
| | - Ludovic Martin
- PXE Consultation Center, MAGEC Nord Reference Center for Rare Skin Diseases, Angers University Hospital, 49000 Angers, France
- MITOVASC-UMR CNRS 6015 INSERM 1083, University of Angers, 49000 Angers, France
| | - Olivier Le Saux
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96822, USA
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Babaniamansour P, Jacho D, Niedzielski S, Rabino A, Garcia-Mata R, Yildirim-Ayan E. Modulating TRPV4 Channel Activity in Pro-Inflammatory Macrophages within the 3D Tissue Analog. Biomedicines 2024; 12:230. [PMID: 38275401 PMCID: PMC10813551 DOI: 10.3390/biomedicines12010230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Investigating macrophage plasticity emerges as a promising strategy for promoting tissue regeneration and can be exploited by regulating the transient receptor potential vanilloid 4 (TRPV4) channel. The TRPV4 channel responds to various stimuli including mechanical, chemical, and selective pharmacological compounds. It is well documented that treating cells such as epithelial cells and fibroblasts with a TRPV4 agonist enhances the Ca2+ influx to the cells, which leads to secretion of pro-inflammatory cytokines, while a TRPV4 antagonist reduces both Ca2+ influx and pro-inflammatory cytokine secretion. In this work, we investigated the effect of selective TRPV4 modulator compounds on U937-differentiated macrophages encapsulated within three-dimensional (3D) matrices. Despite offering a more physiologically relevant model than 2D cultures, pharmacological treatment of macrophages within 3D collagen matrices is largely overlooked in the literature. In this study, pro-inflammatory macrophages were treated with an agonist, 500 nM of GSK1016790A (TRPV4(+)), and an antagonist, 10 mM of RN-1734 (TRPV4(-)), to elucidate the modulation of the TRPV4 channel at both cellular and extracellular levels. To evaluate macrophage phenotypic alterations within 3D collagen matrices following TRPV4 modulator treatment, we employed structural techniques (SEM, Masson's trichrome, and collagen hybridizing peptide (CHP) staining), quantitative morphological measures for phenotypic assessment, and genotypic methods such as quantitative real-time PCR (qRT-PCR) and immunohistochemistry (IHC). Our data reveal that pharmacological modulation of the macrophage TRPV4 channel alters the cytoskeletal structure of macrophages and influences the 3D structure encapsulating them. Moreover, we proved that treating macrophages with a TRPV4 agonist and antagonist enhances the expression of pro- and anti-inflammatory genes, respectively, leading to the upregulation of surface markers CD80 and CD206. In the TRPV4(-) group, the CD206 gene and CD206 surface marker were significantly upregulated by 9- and 2.5-fold, respectively, compared to the control group. These findings demonstrate that TRPV4 modulation can be utilized to shift macrophage phenotype within the 3D matrix toward a desired state. This is an innovative approach to addressing inflammation in musculoskeletal tissues.
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Affiliation(s)
- Parto Babaniamansour
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
| | - Diego Jacho
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
| | - Skyler Niedzielski
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
| | - Agustin Rabino
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Rafael Garcia-Mata
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Eda Yildirim-Ayan
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
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6
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Li J, Xin Y, Wang Z, Li J, Li W, Li H. The role of cardiac resident macrophage in cardiac aging. Aging Cell 2023; 22:e14008. [PMID: 37817547 PMCID: PMC10726886 DOI: 10.1111/acel.14008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/12/2023] Open
Abstract
Advancements in longevity research have provided insights into the impact of cardiac aging on the structural and functional aspects of the heart. Notable changes include the gradual remodeling of the myocardium, the occurrence of left ventricular hypertrophy, and the decline in both systolic and diastolic functions. Macrophages, a type of immune cell, play a pivotal role in innate immunity by serving as vigilant agents against pathogens, facilitating wound healing, and orchestrating the development of targeted acquired immune responses. Distinct subsets of macrophages are present within the cardiac tissue and demonstrate varied functions in response to myocardial injury. The differentiation of cardiac macrophages according to their developmental origin has proven to be a valuable strategy in identifying reparative macrophage populations, which originate from embryonic cells and reside within the tissue, as well as inflammatory macrophages, which are derived from monocytes and recruited to the heart. These subsets of macrophages possess unique characteristics and perform distinct functions. This review aims to summarize the current understanding of the roles and phenotypes of cardiac macrophages in various conditions, including the steady state, aging, and other pathological conditions. Additionally, it will highlight areas that require further investigation to expand our knowledge in this field.
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Affiliation(s)
- Jiayu Li
- Department of Cardiology, Cardiovascular Center, Beijing Friendship HospitalCapital Medical UniversityBeijingChina
- Laboratory for Clinical MedicineBeijing Friendship Hospital, Capital Medical UniversityBeijingChina
| | - Yanguo Xin
- Department of Cardiology, Cardiovascular Center, Beijing Friendship HospitalCapital Medical UniversityBeijingChina
- Laboratory for Clinical MedicineBeijing Friendship Hospital, Capital Medical UniversityBeijingChina
| | - Zhaojia Wang
- Department of Cardiology, Cardiovascular Center, Beijing Friendship HospitalCapital Medical UniversityBeijingChina
- Laboratory for Clinical MedicineBeijing Friendship Hospital, Capital Medical UniversityBeijingChina
| | - Jingye Li
- Department of Cardiology, Cardiovascular Center, Beijing Friendship HospitalCapital Medical UniversityBeijingChina
| | - Weiping Li
- Department of Cardiology, Cardiovascular Center, Beijing Friendship HospitalCapital Medical UniversityBeijingChina
- Laboratory for Clinical MedicineBeijing Friendship Hospital, Capital Medical UniversityBeijingChina
| | - Hongwei Li
- Department of Cardiology, Cardiovascular Center, Beijing Friendship HospitalCapital Medical UniversityBeijingChina
- Laboratory for Clinical MedicineBeijing Friendship Hospital, Capital Medical UniversityBeijingChina
- Beijing Key Laboratory of Metabolic Disorder Related Cardiovascular DiseaseBeijingChina
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Gheorghe RO, Grosu AV, Magercu M, Ghenghea MS, Zbarcea CE, Tanase A, Negres S, Filippi A, Chiritoiu G, Gherghiceanu M, Dinescu S, Gaina G, Sapunar D, Ristoiu V. Switching Rat Resident Macrophages from M1 to M2 Phenotype by Iba1 Silencing Has Analgesic Effects in SNL-Induced Neuropathic Pain. Int J Mol Sci 2023; 24:15831. [PMID: 37958812 PMCID: PMC10648812 DOI: 10.3390/ijms242115831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023] Open
Abstract
Resident macrophages from dorsal root ganglia are important for the development of traumatic-induced neuropathic pain. In the first 5-7 days after a traumatic sciatic nerve injury (i.e., spinal nerve ligation (SNL), spared nerve injury (SNI), sciatic nerve transection or sciatic nerve ligation and transection), Ionized binding adapter protein 1 (Iba1) (+) resident macrophages cluster around dorsal root ganglia neurons, possibly contributing to nerve injury-induced hypersensitivity. Since infiltrating macrophages gradually recruited to the lesion site peak at about 7 days, the first few days post-lesion offer a window of opportunity when the contribution of Iba1 (+) resident macrophages to neuropathic pain pathogenesis could be investigated. Iba1 is an actin cross-linking cytoskeleton protein, specifically located only in macrophages and microglia. In this study, we explored the contribution of rat Iba1 (+) macrophages in SNL-induced neuropathic pain by using intra-ganglionic injections of naked Iba1-siRNA, delivered at the time the lesion occurred. The results show that 5 days after Iba1 silencing, Iba1 (+) resident macrophages are switched from an M1 (pro-inflammatory) phenotype to an M2 (anti-inflammatory) phenotype, which was confirmed by a significant decrease of M1 markers (CD32 and CD86), a significant increase of M2 markers (CD163 and Arginase-1), a reduced secretion of pro-inflammatory cytokines (IL-6, TNF-α and IL-1β) and an increased release of pro-regenerative factors (BDNF, NGF and NT-3) which initiated the regrowth of adult DRG neurites and reduced SNL-induced neuropathic pain. Our data show for the first time, that it is possible to induce macrophages towards an anti-inflammatory phenotype by interacting with their cytoskeleton.
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Affiliation(s)
- Roxana-Olimpia Gheorghe
- Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, District 5, 050095 Bucharest, Romania; (R.-O.G.)
| | - Andreea Violeta Grosu
- Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, District 5, 050095 Bucharest, Romania; (R.-O.G.)
| | - Melania Magercu
- Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, District 5, 050095 Bucharest, Romania; (R.-O.G.)
| | - Mihail-Sebastian Ghenghea
- Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, District 5, 050095 Bucharest, Romania; (R.-O.G.)
| | - Cristina Elena Zbarcea
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 6 Traian Vuia Street, District 2, 02095 Bucharest, Romania
| | - Alexandra Tanase
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 6 Traian Vuia Street, District 2, 02095 Bucharest, Romania
| | - Simona Negres
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 6 Traian Vuia Street, District 2, 02095 Bucharest, Romania
| | - Alexandru Filippi
- Department of Biophysics, University of Medicine and Pharmacy “Carol Davila”, 8 Eroilor Sanitari Blvd., 050474 Bucharest, Romania
| | - Gabriela Chiritoiu
- Department of Molecular Cell Biology, Institute of Biochemistry, Romanian Academy, 2996 Splaiul Independentei 296, District 6, 060031 Bucharest, Romania
| | - Mihaela Gherghiceanu
- Ultrastructural Pathology and Bioimaging Laboratory, Victor Babeș National Institute of Pathology Bucharest, 99-101 Splaiul Independentei, District 5, 050096 Bucharest, Romania
| | - Sorina Dinescu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, District 5, 050095 Bucharest, Romania
| | - Gisela Gaina
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, District 5, 050095 Bucharest, Romania
| | - Damir Sapunar
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Violeta Ristoiu
- Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, District 5, 050095 Bucharest, Romania; (R.-O.G.)
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Elbaz-Hayoun S, Rinsky B, Hagbi-Levi S, Grunin M, Chowers I. CCR1 mediates Müller cell activation and photoreceptor cell death in macular and retinal degeneration. eLife 2023; 12:e81208. [PMID: 37903056 PMCID: PMC10615370 DOI: 10.7554/elife.81208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 10/04/2023] [Indexed: 11/01/2023] Open
Abstract
Mononuclear cells are involved in the pathogenesis of retinal diseases, including age-related macular degeneration (AMD). Here, we examined the mechanisms that underlie macrophage-driven retinal cell death. Monocytes were extracted from patients with AMD and differentiated into macrophages (hMdɸs), which were characterized based on proteomics, gene expression, and ex vivo and in vivo properties. Using bioinformatics, we identified the signaling pathway involved in macrophage-driven retinal cell death, and we assessed the therapeutic potential of targeting this pathway. We found that M2a hMdɸs were associated with retinal cell death in retinal explants and following adoptive transfer in a photic injury model. Moreover, M2a hMdɸs express several CCRI (C-C chemokine receptor type 1) ligands. Importantly, CCR1 was upregulated in Müller cells in models of retinal injury and aging, and CCR1 expression was correlated with retinal damage. Lastly, inhibiting CCR1 reduced photic-induced retinal damage, photoreceptor cell apoptosis, and retinal inflammation. These data suggest that hMdɸs, CCR1, and Müller cells work together to drive retinal and macular degeneration, suggesting that CCR1 may serve as a target for treating these sight-threatening conditions.
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Affiliation(s)
- Sarah Elbaz-Hayoun
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Batya Rinsky
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Shira Hagbi-Levi
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Michelle Grunin
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Itay Chowers
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
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Zou Y, Ghaderpour A, Munkhbileg B, Seo SU, Seong SY. Taurodeoxycholate ameliorates DSS-induced colitis in mice. Int Immunopharmacol 2023; 122:110628. [PMID: 37454634 DOI: 10.1016/j.intimp.2023.110628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Inflammatory bowel disease (IBD) is typically managed using medications such as 5-aminosalicylic acid (5-ASA), glucocorticoids, anti-TNFα Ab, or anti-IL-12/23 Ab. However, some patients do not respond well to these treatments or frequently experience relapses. Therefore, alternative therapeutic options are needed. Since the activation of the inflammasome is crucial to the pathogenesis of IBD, inhibiting the inflammasome may be beneficial for patients. MATERIALS AND METHODS We tested the efficacy of taurodeoxycholate (TDCA), which is a known G-protein coupled receptor 19 (GPCR19) agonist, in a mouse colitis model induced by dextran sodium sulfate (DSS). RESULTS In the mouse colitis model, TDCA prevented loss of body weight, shortening of the colon, production of pro-inflammatory cytokines, infiltration of pro-inflammatory cells, and mucosal ulceration in the colon. In vitro, TDCA inhibited the activation of NF-κB in bone marrow-derived macrophages (BMDMs) by activating the cAMP-PKA axis. TDCA downregulated the expression of purinergic receptor P2X7 (P2X7R) and enhanced the colocalization of P2X7R with GPCR19, and inhibited the Ca2+ mobilization of BMDMs when stimulated with ATP or BzATP, which plays a pivotal role in activating the NLRP3 inflammasome (N3I) via P2X7R. TDCA inhibited the oligomerization of NLRP3-ASC and downregulated the expression of NLRP3 and ASC, as well as suppressed the maturation of pro-caspase-1 and pro-IL-1β. TDCA also increased the percentage of M2 macrophages while decreasing the number of M1 macrophages, Th1, Th2, and Th17 cells in the colon. CONCLUSION TDCA ameliorated DSS-induced colitis in mice, possibly by inhibiting both the priming phase (via the GPCR19-cAMP-PKA-NF-κB axis) and the activation phase (via the GPCR19-P2X7R-NLRP3-Caspase 1-IL-1β axis) of N3I signaling.
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Affiliation(s)
- Yunyun Zou
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Republic of Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Aziz Ghaderpour
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Republic of Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Bolormaa Munkhbileg
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Republic of Korea; Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sang-Uk Seo
- Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung-Yong Seong
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Republic of Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Republic of Korea; Shaperon Inc., Seoul, Republic of Korea.
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10
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Žaloudíková M. Mechanisms and Effects of Macrophage Polarization and Its Specifics in Pulmonary Environment. Physiol Res 2023; 72:S137-S156. [PMID: 37565418 PMCID: PMC10660583 DOI: 10.33549/physiolres.935058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 06/09/2023] [Indexed: 12/01/2023] Open
Abstract
Macrophages are a specific group of cells found in all body tissues. They have specific characteristics in each of the tissues that correspond to the functional needs of the specific environment. These cells are involved in a wide range of processes, both pro-inflammatory and anti-inflammatory ("wound healing"). This is due to their specific capacity for so-called polarization, a phenotypic change that is, moreover, partially reversible compared to other differentiated cells of the human body. This promises a wide range of possibilities for its influence and thus therapeutic use. In this article, we therefore review the mechanisms that cause polarization, the basic classification of polarized macrophages, their characteristic markers and the effects that accompany these phenotypic changes. Since the study of pulmonary (and among them mainly alveolar) macrophages is currently the focus of scientific interest of many researchers and these macrophages are found in very specific environments, given mainly by the extremely high partial pressure of oxygen compared to other locations, which specifically affects their behavior, we will focus our review on this group.
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Affiliation(s)
- M Žaloudíková
- Department of Physiology, Second Faculty of Medicine, Charles University, Prague, Czech Republic.
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11
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Koncz G, Jenei V, Tóth M, Váradi E, Kardos B, Bácsi A, Mázló A. Damage-mediated macrophage polarization in sterile inflammation. Front Immunol 2023; 14:1169560. [PMID: 37465676 PMCID: PMC10351389 DOI: 10.3389/fimmu.2023.1169560] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 06/07/2023] [Indexed: 07/20/2023] Open
Abstract
Most of the leading causes of death, such as cardiovascular diseases, cancer, dementia, neurodegenerative diseases, and many more, are associated with sterile inflammation, either as a cause or a consequence of these conditions. The ability to control the progression of inflammation toward tissue resolution before it becomes chronic holds significant clinical potential. During sterile inflammation, the initiation of inflammation occurs through damage-associated molecular patterns (DAMPs) in the absence of pathogen-associated molecules. Macrophages, which are primarily localized in the tissue, play a pivotal role in sensing DAMPs. Furthermore, macrophages can also detect and respond to resolution-associated molecular patterns (RAMPs) and specific pro-resolving mediators (SPMs) during sterile inflammation. Macrophages, being highly adaptable cells, are particularly influenced by changes in the microenvironment. In response to the tissue environment, monocytes, pro-inflammatory macrophages, and pro-resolution macrophages can modulate their differentiation state. Ultimately, DAMP and RAMP-primed macrophages, depending on the predominant subpopulation, regulate the balance between inflammatory and resolving processes. While sterile injury and pathogen-induced reactions may have distinct effects on macrophages, most studies have focused on macrophage responses induced by pathogens. In this review, which emphasizes available human data, we illustrate how macrophages sense these mediators by examining the expression of receptors for DAMPs, RAMPs, and SPMs. We also delve into the signaling pathways induced by DAMPs, RAMPs, and SPMs, which primarily contribute to the regulation of macrophage differentiation from a pro-inflammatory to a pro-resolution phenotype. Understanding the regulatory mechanisms behind the transition between macrophage subtypes can offer insights into manipulating the transition from inflammation to resolution in sterile inflammatory diseases.
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Affiliation(s)
- Gábor Koncz
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Viktória Jenei
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Márta Tóth
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Eszter Váradi
- Institute of Genetics, Biological Research Centre, Eotvos Lorand Research Network, Szeged, Hungary
- Doctoral School in Biology, University of Szeged, Szeged, Hungary
| | - Balázs Kardos
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Attila Bácsi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- ELKH-DE Allergology Research Group, Debrecen, Hungary
| | - Anett Mázló
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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12
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Scherr BF, Reiner MF, Baumann F, Höhne K, Müller T, Ayata K, Müller-Quernheim J, Idzko M, Zissel G. Prevention of M2 polarization and temporal limitation of differentiation in monocytes by extracellular ATP. BMC Immunol 2023; 24:11. [PMID: 37353774 PMCID: PMC10288684 DOI: 10.1186/s12865-023-00546-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 06/06/2023] [Indexed: 06/25/2023] Open
Abstract
BACKGROUND Elevated levels of extracellular adenosine triphosphate (ATP) modulate immunologic pathways and are considered to be a danger signal in inflammation, lung fibrosis and cancer. Macrophages can be classified into two main types: M1 macrophages are classically activated, pro-inflammatory macrophages, whereas M2 macrophages are alternatively activated, pro-fibrotic macrophages. In this study, we examined the effect of ATP on differentiation of native human monocytes into these macrophage subtypes. We characterized M1 and M2 like macrophages by their release of Interleukin-1beta (IL-1β) and Chemokine (C-C motif) ligand 18 (CCL18), respectively. RESULTS Monocytes were stimulated with ATP or the P2X7 receptor agonist Benzoylbenzoyl-ATP (Bz-ATP), and the production of various cytokines was analyzed, with a particular focus on CCL18 and IL-1β, along with the expression of different purinergic receptors. Over a 72 h period of cell culture, monocytes spontaneously differentiated to M2 like macrophages, as indicated by an increased release of CCL18. Immediate stimulation of monocytes with ATP resulted in a dose-dependent reduction in CCL18 release, but had no effect on the concentration of IL-1β. In contrast, delayed stimulation with ATP had no effect on either CCL18 or IL-1β release. Similar results were observed in a model of inflammation using lipopolysaccharide-stimulated human monocytes. Stimulation with the P2X7 receptor agonist Bz-ATP mimicked the effect of ATP on M2-macrophage differentiation, indicating that P2X7 is involved in ATP-induced inhibition of CCL18 release. Indeed, P2X7 was downregulated during spontaneous M2 differentiation, which may partially explain the ineffectiveness of late ATP stimulation of monocytes. However, pre-incubation of monocytes with PPADS, Suramin (unselective P2X- and P2Y-receptor blockers) and KN62 (P2X7-antagonist) failed to reverse the reduction of CCL18 by ATP. CONCLUSIONS ATP prevents spontaneous differentiation of monocytes into M2-like macrophages in a dose- and time-dependent manner. These effects were not mediated by P2X and P2Y receptors.
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Affiliation(s)
- Benedikt F Scherr
- Department of Pneumology, Medical Center, Faculty of Medicine, University of Freiburg, Engesserstr. 4 5thFloor, 79106 79108, Freiburg, Germany
- Institute of Intensive Care Medicine, University Hospital Zurich, 8091, Zurich, Switzerland
| | - Martin F Reiner
- Department of Cardiology, University Heart Center, University Hospital Zurich, 8091, Zurich, Switzerland
| | - Flavia Baumann
- Emergency Department, University Hospital Zurich, 8091, Zurich, Switzerland
| | - Kerstin Höhne
- Department of Pneumology, Medical Center, Faculty of Medicine, University of Freiburg, Engesserstr. 4 5thFloor, 79106 79108, Freiburg, Germany
| | - Tobias Müller
- Department of Pneumology, Medical Center, Faculty of Medicine, University of Freiburg, Engesserstr. 4 5thFloor, 79106 79108, Freiburg, Germany
- Department of Pneumology, University Medical Center Mannheim, University of Heidelberg, 68167, Mannheim, Germany
| | - Korcan Ayata
- Department of Pneumology, Medical Center, Faculty of Medicine, University of Freiburg, Engesserstr. 4 5thFloor, 79106 79108, Freiburg, Germany
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Joachim Müller-Quernheim
- Department of Pneumology, Medical Center, Faculty of Medicine, University of Freiburg, Engesserstr. 4 5thFloor, 79106 79108, Freiburg, Germany
| | - Marco Idzko
- Department of Pneumology, Medical Center, Faculty of Medicine, University of Freiburg, Engesserstr. 4 5thFloor, 79106 79108, Freiburg, Germany
- Division of Pulmonology, Department of Medicine II, Medical University of Vienna, 1090, Vienna, Austria
| | - Gernot Zissel
- Department of Pneumology, Medical Center, Faculty of Medicine, University of Freiburg, Engesserstr. 4 5thFloor, 79106 79108, Freiburg, Germany.
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13
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Rodriguez NR, Fortune T, Vuong T, Swartz TH. The role of extracellular ATP and P2X receptors in the pathogenesis of HIV-1. Curr Opin Pharmacol 2023; 69:102358. [PMID: 36848824 PMCID: PMC10023410 DOI: 10.1016/j.coph.2023.102358] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 01/15/2023] [Accepted: 01/25/2023] [Indexed: 03/01/2023]
Abstract
Human Immunodeficiency Virus Type 1 (HIV-1) causes a chronic, incurable infection associated with chronic inflammation despite virologic suppression on antiretroviral therapy (ART). This chronic inflammation underlies significant comorbidities, including cardiovascular disease, neurocognition decline, and malignancies. The mechanisms of chronic inflammation have been attributed, in part, to the role of extracellular ATP and P2X-type purinergic receptors that sense damaged or dying cells and undergo signaling responses to activate inflammation and immunomodulation. This review describes the current literature on the role of extracellular ATP and P2X receptors in HIV-1 pathogenesis, describing the known intersection with the HIV-1 life cycle in mediating immunopathogenesis and neuronal disease. The literature supports key roles for this signaling mechanism in cell-to-cell communication and in activating transcriptional changes that impact the inflammatory state leading to disease progression. Future studies must characterize the numerous functions of ATP and P2X receptors in HIV-1 pathogenesis to inform future therapeutic targeting.
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Affiliation(s)
- Natalia R Rodriguez
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Trinisia Fortune
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Thien Vuong
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Talia H Swartz
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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14
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Al Aameri RFH, Alanisi EMA, Oluwatosin A, Al Sallami D, Sheth S, Alberts I, Patel S, Rybak LP, Ramkumar V. Targeting CXCL1 chemokine signaling for treating cisplatin ototoxicity. Front Immunol 2023; 14:1125948. [PMID: 37063917 PMCID: PMC10102581 DOI: 10.3389/fimmu.2023.1125948] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 03/17/2023] [Indexed: 04/03/2023] Open
Abstract
Cisplatin is chemotherapy used for solid tumor treatment like lung, bladder, head and neck, ovarian and testicular cancers. However, cisplatin-induced ototoxicity limits the utility of this agent in cancer patients, especially when dose escalations are needed. Ototoxicity is associated with cochlear cell death through DNA damage, the generation of reactive oxygen species (ROS) and the consequent activation of caspase, glutamate excitotoxicity, inflammation, apoptosis and/or necrosis. Previous studies have demonstrated a role of CXC chemokines in cisplatin ototoxicity. In this study, we investigated the role of CXCL1, a cytokine which increased in the serum and cochlea by 24 h following cisplatin administration. Adult male Wistar rats treated with cisplatin demonstrated significant hearing loss, assessed by auditory brainstem responses (ABRs), hair cell loss and loss of ribbon synapse. Immunohistochemical studies evaluated the levels of CXCL1 along with increased presence of CD68 and CD45-positive immune cells in cochlea. Increases in CXCL1 was time-dependent in the spiral ganglion neurons and organ of Corti and was associated with progressive increases in CD45, CD68 and IBA1-positive immune cells. Trans-tympanic administration of SB225002, a chemical inhibitor of CXCR2 (receptor target for CXCL1) reduced immune cell migration, protected against cisplatin-induced hearing loss and preserved hair cell integrity. We show that SB225002 reduced the expression of CXCL1, NOX3, iNOS, TNF-α, IL-6 and COX-2. Similarly, knockdown of CXCR2 by trans-tympanic administration of CXCR2 siRNA protected against hearing loss and loss of outer hair cells and reduced ribbon synapses. In addition, SB225002 reduced the expression of inflammatory mediators induced by cisplatin. These results implicate the CXCL1 chemokine as an early player in cisplatin ototoxicity, possibly by initiating the immune cascade, and indicate that CXCR2 is a relevant target for treating cisplatin ototoxicity.
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Affiliation(s)
- Raheem F. H. Al Aameri
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Entkhab M. A. Alanisi
- Department of Pharmaceutical Sciences, Larkin University College of Pharmacy, Miami, FL, United States
| | - Adu Oluwatosin
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Dheyaa Al Sallami
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Sandeep Sheth
- Department of Pharmaceutical Sciences, Larkin University College of Pharmacy, Miami, FL, United States
| | - Ian Alberts
- Medical Microbiology, Immunology and Cell Biology (MMICB), Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Shree Patel
- Medical Microbiology, Immunology and Cell Biology (MMICB), Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Leonard P. Rybak
- Department of Surgery, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Vickram Ramkumar
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
- *Correspondence: Vickram Ramkumar,
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15
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Lin YC, Lin YC, Tsai ML, Liao WT, Hung CH. TSLP regulates mitochondrial ROS-induced mitophagy via histone modification in human monocytes. Cell Biosci 2022; 12:32. [PMID: 35292112 PMCID: PMC8925056 DOI: 10.1186/s13578-022-00767-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 03/01/2022] [Indexed: 11/24/2022] Open
Abstract
Background Thymic stromal lymphopoietin (TSLP) is a Th2-like cytokine involved in asthma pathogenesis. Excessive reactive oxygen species (ROS) production can lead to airway inflammation, hyperresponsiveness and remodeling. Mitophagy, followed by ROS production, is the selective degradation of mitochondria by autophagy and often occurs in defective mitochondria. In the present study, we aimed to examine the effects of TSLP on ROS production and mitophagy in human monocytes and to investigate the underlying mechanisms, including epigenetic regulation. Results TSLP induced ROS generation, and the effects were reversed by the antioxidant N-acetylcysteine (NAC) in THP-1 cells. Transmission electron microscopy images showed donut-shaped mitochondria that lost the cristae ultrastructure after TSLP stimulation. A decrease in mitochondrial membrane potential, decreased MTCO2 expression, and increased mitochondrial DNA release after TSLP stimulation were found. TSLP enhanced mitochondrial complex I and complex II/III activity and increased mitochondrial copy numbers and the expression of the complex II SHDA gene. TSLP-induced SHDA expression was inhibited by the histone acetyltransferase inhibitor anacardic acid (AA) and the histone methyltransferase inhibitor methylthioadenosine (MTA), and chromatin immunoprecipitation assays revealed that TSLP enhanced H3 acetylation, H4 acetylation, and H3K4 and H3K36 trimethylation in the SHDA promoter. Confocal laser microscopy showed that TSLP treatment increased the signals of the mitophagy-related proteins PINK1, LC3, phospho-parkin and phospho-ubiquitin, and pretreatment with AA and MTA reduced TSLP-induced PINK1 and LC3 accumulation in mitochondria. Western blot analysis showed that TSLP significantly increased phosphor-AMPK signal intensity, and the effects were inhibited by the antioxidant NAC. The increased signal intensities of the mitophagy-related proteins PINK1, Parkin and LC3 I/II were decreased by dorsomorphin, an AMPK inhibitor. TSLP decreased M1-related cytokine CXCL-10 production and increased M2-related cytokine CCL-1 and CCL-22 production, which was suppressed by the mitophagy inhibitor Mdivi-1 and PINK1 gene knockdown. Conclusions Epithelial-derived TSLP regulates ROS production and mitophagy through AMPK activation and histone modification and alters M1/M2 chemokine expression in human monocytes. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13578-022-00767-w.
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16
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Shirazi S, Ravindran S, Cooper LF. Topography-mediated immunomodulation in osseointegration; Ally or Enemy. Biomaterials 2022; 291:121903. [PMID: 36410109 PMCID: PMC10148651 DOI: 10.1016/j.biomaterials.2022.121903] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/11/2022]
Abstract
Osteoimmunology is at full display during endosseous implant osseointegration. Bone formation, maintenance and resorption at the implant surface is a result of bidirectional and dynamic reciprocal communication between the bone and immune cells that extends beyond the well-defined osteoblast-osteoclast signaling. Implant surface topography informs adherent progenitor and immune cell function and their cross-talk to modulate the process of bone accrual. Integrating titanium surface engineering with the principles of immunology is utilized to harness the power of immune system to improve osseointegration in healthy and diseased microenvironments. This review summarizes current information regarding immune cell-titanium implant surface interactions and places these events in the context of surface-mediated immunomodulation and bone regeneration. A mechanistic approach is directed in demonstrating the central role of osteoimmunology in the process of osseointegration and exploring how regulation of immune cell function at the implant-bone interface may be used in future control of clinical therapies. The process of peri-implant bone loss is also informed by immunomodulation at the implant surface. How surface topography is exploited to prevent osteoclastogenesis is considered herein with respect to peri-implant inflammation, osteoclastic precursor-surface interactions, and the upstream/downstream effects of surface topography on immune and progenitor cell function.
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Affiliation(s)
- Sajjad Shirazi
- Department of Oral Biology, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA.
| | - Sriram Ravindran
- Department of Oral Biology, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA
| | - Lyndon F Cooper
- School of Dentistry, Virginia Commonwealth University, Richmond, VA, USA.
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17
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Sipka T, Park SA, Ozbilgic R, Balas L, Durand T, Mikula K, Lutfalla G, Nguyen-Chi M. Macrophages undergo a behavioural switch during wound healing in zebrafish. Free Radic Biol Med 2022; 192:200-212. [PMID: 36162743 DOI: 10.1016/j.freeradbiomed.2022.09.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 09/08/2022] [Accepted: 09/19/2022] [Indexed: 12/24/2022]
Abstract
In response to wound signals, macrophages are immediately recruited to the injury where they acquire distinct phenotypes and functions, playing crucial roles both in host defense and healing process. Although macrophage phenotypes have been intensively studied during wound healing, mostly using markers and expression profiles, the impact of the wound environment on macrophage shape and behaviour, and the underlying mechanisms deserve more in-depth investigation. Here, we sought to characterize the dynamics of macrophage recruitment and behaviour during aseptic wounding of the caudal fin fold of the zebrafish larva. Using a photo-conversion approach, we demonstrated that macrophages are recruited to the wounded fin fold as a single wave where they switch their phenotype. Intravital imaging of macrophage shape and trajectories revealed that wound-macrophages display a highly stereotypical set of behaviours and change their shape from amoeboid to elongated shape as wound healing proceeds. Using a pharmacological inhibitor of 15-lipoxygenase and protectin D1, a specialized pro-resolving lipid, we investigated the role of polyunsaturated fatty acid metabolism in macrophage behaviour. While inhibition of 15-lipoxygenase using PD146176 or Nordihydroguaiaretic acid (NDGA) decreases the switch from amoeboid to elongated shape, protectin D1 accelerates macrophage reverse migration and favours elongated morphologies. Altogether, our findings suggest that individual macrophages at the wound switch their phenotype leading to important changes in behaviour and shape to adapt to changing environment, and highlight the crucial role of lipid metabolism in the control of macrophage behaviour plasticity during inflammation in vivo.
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Affiliation(s)
- Tamara Sipka
- LPHI, Univ Montpellier, CNRS, Montpellier, France
| | - Seol Ah Park
- Department of Mathematics and Descriptive Geometry, Slovak University of Technology in Bratislava, Slovakia
| | | | - Laurence Balas
- IBMM, UMR5247, CNRS, Univ Montpellier, ENSCM, Montpellier, France
| | - Thierry Durand
- IBMM, UMR5247, CNRS, Univ Montpellier, ENSCM, Montpellier, France
| | - Karol Mikula
- Department of Mathematics and Descriptive Geometry, Slovak University of Technology in Bratislava, Slovakia
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Xiang H, Yu H, Zhou Q, Wu Y, Ren J, Zhao Z, Tao X, Dong D. Macrophages: A rising star in immunotherapy for chronic pancreatitis. Pharmacol Res 2022; 185:106508. [DOI: 10.1016/j.phrs.2022.106508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 10/10/2022] [Indexed: 11/29/2022]
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19
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De Salis SKF, Li L, Chen Z, Lam KW, Skarratt KK, Balle T, Fuller SJ. Alternatively Spliced Isoforms of the P2X7 Receptor: Structure, Function and Disease Associations. Int J Mol Sci 2022; 23:ijms23158174. [PMID: 35897750 PMCID: PMC9329894 DOI: 10.3390/ijms23158174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 12/24/2022] Open
Abstract
The P2X7 receptor (P2X7R) is an ATP-gated membrane ion channel that is expressed by multiple cell types. Following activation by extracellular ATP, the P2X7R mediates a broad range of cellular responses including cytokine and chemokine release, cell survival and differentiation, the activation of transcription factors, and apoptosis. The P2X7R is made up of three P2X7 subunits that contain specific domains essential for the receptor’s varied functions. Alternative splicing produces P2X7 isoforms that exclude one or more of these domains and assemble in combinations that alter P2X7R function. The modification of the structure and function of the P2X7R may adversely affect cellular responses to carcinogens and pathogens, and alternatively spliced (AS) P2X7 isoforms have been associated with several cancers. This review summarizes recent advances in understanding the structure and function of AS P2X7 isoforms and their associations with cancer and potential role in modulating the inflammatory response.
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Affiliation(s)
- Sophie K. F. De Salis
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (S.K.F.D.S.); (Z.C.); (T.B.)
| | - Lanxin Li
- Sydney Medical School Nepean, Faculty of Medicine and Health, The University of Sydney, Nepean Hospital, Penrith, NSW 2750, Australia; (L.L.); (K.W.L.); (K.K.S.)
| | - Zheng Chen
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (S.K.F.D.S.); (Z.C.); (T.B.)
| | - Kam Wa Lam
- Sydney Medical School Nepean, Faculty of Medicine and Health, The University of Sydney, Nepean Hospital, Penrith, NSW 2750, Australia; (L.L.); (K.W.L.); (K.K.S.)
| | - Kristen K. Skarratt
- Sydney Medical School Nepean, Faculty of Medicine and Health, The University of Sydney, Nepean Hospital, Penrith, NSW 2750, Australia; (L.L.); (K.W.L.); (K.K.S.)
| | - Thomas Balle
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (S.K.F.D.S.); (Z.C.); (T.B.)
- Brain and Mind Centre, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Stephen J. Fuller
- Sydney Medical School Nepean, Faculty of Medicine and Health, The University of Sydney, Nepean Hospital, Penrith, NSW 2750, Australia; (L.L.); (K.W.L.); (K.K.S.)
- Correspondence: ; Tel.: +61-2-4734-3732
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Novel Inflammasome-Based Risk Score for Predicting Survival and Efficacy to Immunotherapy in Early-Stage Non-Small Cell Lung Cancer. Biomedicines 2022; 10:biomedicines10071539. [PMID: 35884843 PMCID: PMC9313462 DOI: 10.3390/biomedicines10071539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/26/2022] [Accepted: 06/27/2022] [Indexed: 12/02/2022] Open
Abstract
Immune checkpoint inhibitors (ICI) for early-stage non-small cell lung cancer (NSCLC) have been approved to improve outcomes and reduce recurrence. Biomarkers for patient selection are needed. In this paper, we proposed an inflammasome-based risk score (IRS) system for prognosis and prediction of ICI response for early-stage NSCLC. Cox regression analysis was used to identify significant genes (from 141 core inflammasome genes) for overall survival (OS) in a microarray discovery cohort (n = 467). IRS was established and independently validated by other datasets (n = 1320). We evaluated the inflammasome signaling steps based on five gene sets, which were IL1B-, CASP-1-, IL18-, GSDMD-, and inflammasome-regulated genes. Gene set enrichment analysis, the Kaplan–Meier curve, receiver operator characteristic with area under curve (AUC) analysis, and advanced bioinformatic tools were used to confirm the ability of IRS in prognosis and classification of patients into ICI responders and non-responders. A 30-gene IRS was developed, and it indicated good risk stratification at 10-year OS (AUC = 0.726). Patients were stratified into high- and low-risk groups based on optimal cutoff points, and high-risk IRS had significantly poorer OS and relapse-free survival. In addition, the high-risk group was characterized by an inflamed immunophenotype and higher proportion of ICI responders. Furthermore, expression of SLAMF8 was the key gene in IRS and indicated good correlation with biomarkers associated with immunotherapy. It could serve as a therapeutic target in the clinical setting of immunotherapy.
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Wu JJ, Sun ZL, Liu SY, Chen ZH, Yuan ZD, Zou ML, Teng YY, Li YY, Guo DY, Yuan FL. The ASIC3-M-CSF-M2 macrophage-positive feedback loop modulates fibroblast-to-myofibroblast differentiation in skin fibrosis pathogenesis. Cell Death Dis 2022; 13:527. [PMID: 35661105 PMCID: PMC9167818 DOI: 10.1038/s41419-022-04981-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 05/23/2022] [Accepted: 05/26/2022] [Indexed: 01/21/2023]
Abstract
Inflammation is one of the main pathological features leading to skin fibrosis and a key factor leading to the progression of skin fibrosis. Acidosis caused by a decrease in extracellular pH is a sign of the inflammatory process. Acid-sensing ion channels (ASICs) are ligand-gated ion channels on the cell membrane that sense the drop in extracellular pH. The molecular mechanisms by which skin fibroblasts are regulated by acid-sensing ion channel 3 (ASIC3) remain unknown. This study investigated whether ASIC3 is related to inflammation and skin fibrosis and explored the underlying mechanisms. We demonstrate that macrophage colony-stimulating factor (M-CSF) is a direct target of ASIC3, and ASIC3 activation promotes M-CSF transcriptional regulation of macrophages for M2 polarization. The polarization of M2 macrophages transduced by the ASIC3-M-CSF signal promotes the differentiation of fibroblasts into myofibroblasts through transforming growth factor β1 (TGF-β1), thereby producing an ASIC3-M-CSF-TGF-β1 positive feedback loop. Targeting ASIC3 may be a new treatment strategy for skin fibrosis.
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Affiliation(s)
- Jun-Jie Wu
- grid.258151.a0000 0001 0708 1323Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China ,grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Zi-Li Sun
- grid.410745.30000 0004 1765 1045Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000 China
| | - Si-Yu Liu
- grid.410745.30000 0004 1765 1045Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000 China
| | - Zhong-Hua Chen
- grid.260483.b0000 0000 9530 8833The Nantong University, Nantong, Jiangsu 226000 China
| | - Zheng-Dong Yuan
- grid.258151.a0000 0001 0708 1323Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China ,grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Ming-Li Zou
- grid.410745.30000 0004 1765 1045Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000 China
| | - Ying-Ying Teng
- grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Yue-Yue Li
- grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Dan-Yang Guo
- grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Feng-Lai Yuan
- grid.258151.a0000 0001 0708 1323Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China ,grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China ,grid.410745.30000 0004 1765 1045Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000 China
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22
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Challagundla N, Saha B, Agrawal-Rajput R. Insights into inflammasome regulation: cellular, molecular, and pathogenic control of inflammasome activation. Immunol Res 2022; 70:578-606. [PMID: 35610534 DOI: 10.1007/s12026-022-09286-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 05/04/2022] [Indexed: 02/07/2023]
Abstract
Maintenance of immune homeostasis is an intricate process wherein inflammasomes play a pivotal role by contributing to innate and adaptive immune responses. Inflammasomes are ensembles of adaptor proteins that can trigger a signal following innate sensing of pathogens or non-pathogens eventuating in the inductions of IL-1β and IL-18. These inflammatory cytokines substantially influence the antigen-presenting cell's costimulatory functions and T helper cell differentiation, contributing to adaptive immunity. As acute and chronic disease conditions may accompany parallel tissue damage, we analyze the critical role of extracellular factors such as cytokines, amyloids, cholesterol crystals, etc., intracellular metabolites, and signaling molecules regulating inflammasome activation/inhibition. We develop an operative framework for inflammasome function and regulation by host cell factors and pathogens. While inflammasomes influence the innate and adaptive immune components' interplay modulating the anti-pathogen adaptive immune response, pathogens may target inflammasome inhibition as a survival strategy. As trapped between health and diseases, inflammasomes serve as promising therapeutic targets and their modus operandi serves as a scientific rationale for devising better therapeutic strategies.
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Affiliation(s)
- Naveen Challagundla
- Immunology lab, Indian Institute of Advanced Research, Gandhinagar, Gujarat, 382007, India
| | - Bhaskar Saha
- National Centre for Cell Science, Lab-5, Ganeshkhind, Pune, Maharashtra, 411007, India
| | - Reena Agrawal-Rajput
- Immunology lab, Indian Institute of Advanced Research, Gandhinagar, Gujarat, 382007, India.
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23
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Gu H, Deng W, Zhang Y, Chang Y, Shelat VG, Tsuchida K, Lino-Silva LS, Wang Z. NLRP3 activation in tumor-associated macrophages enhances lung metastasis of pancreatic ductal adenocarcinoma. Transl Lung Cancer Res 2022; 11:858-868. [PMID: 35693281 PMCID: PMC9186165 DOI: 10.21037/tlcr-22-311] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/18/2022] [Indexed: 02/05/2023]
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is the most common type of pancreatic cancer and is highly malignant due to its late diagnosis and early metastasis. Lung metastasis of PDAC occurs in a significant number of diagnosed patients and represents high severity of disease and poor clinical outcome. However, the molecular regulation of lung metastasis of PDAC is still not fully understood. Tumor-associated macrophages (TAMs) have recently been found to play an important role in cancer initiation, proliferation, progression, and metastasis. The proliferation, differentiation, and polarization of macrophages has been shown to be regulated by interleukin 1β (IL-1β), which is generated by NLR family pyrin domain containing 3 (NLRP3)-induced formation of inflammasome. Herein we investigated whether NLRP3 plays a role in lung metastasis of PDAC through regulation of macrophage polarization. METHODS Gene profiles for NLRP3 (+/+) and NLRP3 (-/-) macrophages obtained from the Gene Expression Omnibus (GEO) public database were compared and analyzed for altered genes related to macrophage polarization. The regulation of macrophage polarization by NLRP3 was examined in a coculture system with naïve NLRP3 (+/+) or NLRP3 (-/-) macrophages and PDAC cells. Cell growth was analyzed by a Cell Counting Kit-8 (CCK-8) assay. Cell invasiveness and migratory potential were analyzed by transwell cell invasion assay and cell migration assay, respectively. PDAC formation and lung metastasis were analyzed in a mouse model of PDAC with and without NLRP3 knockout. RESULTS GEO database analysis revealed significant alteration in genes that regulate macrophage polarization in NLRP3-depleted macrophages. NLRP3-depletion in macrophages seemed to favor an M1/M2b polarization. In vitro, the presence of NLRP3 in macrophages led to M2a/c/d TAM-like polarization when they were cocultured with PDAC cells. Conversely, NLRP3 depletion in macrophages led to M1/M2b polarization when they were cocultured with PDAC cells. NLRP3-depletion significantly inhibited tumor growth and stage progression in a mouse model of PDAC and significantly reduced the occurrence of lung metastasis. CONCLUSIONS Our results suggested that NLRP3 activation in TAM enhanced lung metastasis of PDAC through regulation of TAM polarization.
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Affiliation(s)
- Haitao Gu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wensheng Deng
- Department of General Surgery, Gastrointestinal Surgical Institute, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yi Zhang
- Department of Colorectal Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yu Chang
- Department of Endocrinology, the Third People’s Hospital of Yunnan, Dali University School of Medicine, Kunming, China
| | - Vishal G. Shelat
- Department of General Surgery, Tan Tock Seng Hospital, Singapore, Singapore
| | - Kunihiro Tsuchida
- Division for Therapies Against Intractable Diseases, Institute for Comprehensive Medical Science (ICMS), Fujita Health University, Toyoake, Aichi, Japan
| | - Leonardo S. Lino-Silva
- Department of Surgical Pathology, Instituto Nacional de Cancerología, Tlalpan, Mexico City, Mexico
| | - Zhaowen Wang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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24
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Alteration in Inflammasome Cytokine Profile and Functional Plasticity of Macrophage Phenotype in Arsenic(0) Nanoparticle Treated Murine Fibrosarcoma. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-021-00936-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Abstract
Significance: Inflammasomes are cytosolic multiprotein complexes that mediate innate immune pathways. Inflammasomes activate inflammatory caspases and regulate inflammatory cytokines interleukin (IL)-1β and IL-18 as well as inflammatory cell death (pyroptosis). Among known inflammasomes, NLRP3 (NLR family pyrin domain containing 3) inflammasome is unique and well studied owing to the fact that it senses a broad range of stimuli and is implicated in the pathogenesis of both microbial and sterile inflammatory diseases. Recent Advances: Reactive oxygen species (ROS), especially derived from the mitochondria, are one of the critical mediators of NLRP3 inflammasome activation. Furthermore, NLRP3 inflammasome-driven inflammation recruits inflammatory cells, including macrophages and neutrophils, which in turn cause ROS production, suggesting a feedback loop between ROS and NLRP3 inflammasome. Critical Issues: The precise mechanism of how ROS affects NLRP3 inflammasome activation still need to be addressed. This review will summarize the current knowledge on the molecular mechanisms underlying the activation of NLRP3 inflammasome with particular emphasis on the intricate balance of feedback loop between ROS and inflammasome activation. Future Directions: Understanding that this relationship is loop rather than traditionally understood linear mechanism will enable to fine-tune inflammasome activation under varied pathological settings. Antioxid. Redox Signal. 36, 784-796.
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Affiliation(s)
- Abishai Dominic
- Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M University, College Station, Texas, USA.,Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, Texas, USA
| | - Nhat-Tu Le
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, Texas, USA
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
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26
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Ren W, Rubini P, Tang Y, Engel T, Illes P. Inherent P2X7 Receptors Regulate Macrophage Functions during Inflammatory Diseases. Int J Mol Sci 2021; 23:ijms23010232. [PMID: 35008658 PMCID: PMC8745241 DOI: 10.3390/ijms23010232] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 12/12/2022] Open
Abstract
Macrophages are mononuclear phagocytes which derive either from blood-borne monocytes or reside as resident macrophages in peripheral (Kupffer cells of the liver, marginal zone macrophages of the spleen, alveolar macrophages of the lung) and central tissue (microglia). They occur as M1 (pro-inflammatory; classic) or M2 (anti-inflammatory; alternatively activated) phenotypes. Macrophages possess P2X7 receptors (Rs) which respond to high concentrations of extracellular ATP under pathological conditions by allowing the non-selective fluxes of cations (Na+, Ca2+, K+). Activation of P2X7Rs by still higher concentrations of ATP, especially after repetitive agonist application, leads to the opening of membrane pores permeable to ~900 Da molecules. For this effect an interaction of the P2X7R with a range of other membrane channels (e.g., P2X4R, transient receptor potential A1 [TRPA1], pannexin-1 hemichannel, ANO6 chloride channel) is required. Macrophage-localized P2X7Rs have to be co-activated with the lipopolysaccharide-sensitive toll-like receptor 4 (TLR4) in order to induce the formation of the inflammasome 3 (NLRP3), which then activates the pro-interleukin-1β (pro-IL-1β)-degrading caspase-1 to lead to IL-1β release. Moreover, inflammatory diseases (e.g., rheumatoid arthritis, Crohn’s disease, sepsis, etc.) are generated downstream of the P2X7R-induced upregulation of intracellular second messengers (e.g., phospholipase A2, p38 mitogen-activated kinase, and rho G proteins). In conclusion, P2X7Rs at macrophages appear to be important targets to preserve immune homeostasis with possible therapeutic consequences.
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Affiliation(s)
- Wenjing Ren
- International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of TCM, Chengdu 610075, China; (W.R.); (P.R.); (Y.T.)
- School of Acupunct3ure and Tuina, Chengdu University of TCM, Chengdu 610075, China
| | - Patrizia Rubini
- International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of TCM, Chengdu 610075, China; (W.R.); (P.R.); (Y.T.)
- School of Acupunct3ure and Tuina, Chengdu University of TCM, Chengdu 610075, China
| | - Yong Tang
- International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of TCM, Chengdu 610075, China; (W.R.); (P.R.); (Y.T.)
- School of Acupunct3ure and Tuina, Chengdu University of TCM, Chengdu 610075, China
| | - Tobias Engel
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, D02 YN77 Dublin, Ireland;
- FutureNeuro, SFI Research Centre for Chronic and Rare Neurological Diseases, RCSI University of Medicine and Health Sciences, D02 YN77 Dublin, Ireland
| | - Peter Illes
- International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of TCM, Chengdu 610075, China; (W.R.); (P.R.); (Y.T.)
- School of Acupunct3ure and Tuina, Chengdu University of TCM, Chengdu 610075, China
- Rudolf Boehm Institute for Pharmacology and Toxicology, University of Leipzig, 04107 Leipzig, Germany
- Correspondence:
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27
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Niyonzima N, Rahman J, Kunz N, West EE, Freiwald T, Desai JV, Merle NS, Gidon A, Sporsheim B, Lionakis MS, Evensen K, Lindberg B, Skagen K, Skjelland M, Singh P, Haug M, Ruseva MM, Kolev M, Bibby J, Marshall O, O’Brien B, Deeks N, Afzali B, Clark RJ, Woodruff TM, Pryor M, Yang ZH, Remaley AT, Mollnes TE, Hewitt SM, Yan B, Kazemian M, Kiss MG, Binder CJ, Halvorsen B, Espevik T, Kemper C. Mitochondrial C5aR1 activity in macrophages controls IL-1β production underlying sterile inflammation. Sci Immunol 2021; 6:eabf2489. [PMID: 34932384 PMCID: PMC8902698 DOI: 10.1126/sciimmunol.abf2489] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
While serum-circulating complement destroys invading pathogens, intracellularly active complement, termed the “complosome,” functions as a vital orchestrator of cell-metabolic events underlying T cell effector responses. Whether intracellular complement is also nonredundant for the activity of myeloid immune cells is currently unknown. Here, we show that monocytes and macrophages constitutively express complement component (C) 5 and generate autocrine C5a via formation of an intracellular C5 convertase. Cholesterol crystal sensing by macrophages induced C5aR1 signaling on mitochondrial membranes, which shifted ATP production via reverse electron chain flux toward reactive oxygen species generation and anaerobic glycolysis to favor IL-1β production, both at the transcriptional level and processing of pro–IL-1β. Consequently, atherosclerosis-prone mice lacking macrophage-specific C5ar1 had ameliorated cardiovascular disease on a high-cholesterol diet. Conversely, inflammatory gene signatures and IL-1β produced by cells in unstable atherosclerotic plaques of patients were normalized by a specific cell-permeable C5aR1 antagonist. Deficiency of the macrophage cell-autonomous C5 system also protected mice from crystal nephropathy mediated by folic acid. These data demonstrate the unexpected intracellular formation of a C5 convertase and identify C5aR1 as a direct modulator of mitochondrial function and inflammatory output from myeloid cells. Together, these findings suggest that the complosome is a contributor to the biologic processes underlying sterile inflammation and indicate that targeting this system could be beneficial in macrophage-dependent diseases, such as atherosclerosis.
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Affiliation(s)
- Nathalie Niyonzima
- Center of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Jubayer Rahman
- Complement and Inflammation Research Section (CIRS), National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Natalia Kunz
- Complement and Inflammation Research Section (CIRS), National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Erin E. West
- Complement and Inflammation Research Section (CIRS), National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Tilo Freiwald
- Immunoregulation Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, MD 20892, USA
| | - Jigar V. Desai
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nicolas S. Merle
- Complement and Inflammation Research Section (CIRS), National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Alexandre Gidon
- Center of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Bjørnar Sporsheim
- Center of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- Central Administration, St. Olavs Hospital, University Hospital in Trondheim, Trondheim, Norway
| | - Michail S. Lionakis
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kristin Evensen
- Department of Neurology, Vestre Viken, Drammen Hospital, Drammen, Norway
| | - Beate Lindberg
- Department of Cardiothoracic Surgery, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Karolina Skagen
- Department of Neurology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Mona Skjelland
- Department of Neurology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Parul Singh
- Complement and Inflammation Research Section (CIRS), National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Markus Haug
- Center of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- Central Norway Regional Health Authority, St. Olavs Hospital HF, Trondheim, Norway
| | - Marieta M. Ruseva
- BG2, Adaptive Immunity Research Unit, GlaxoSmithKline, Stevenage, UK
| | - Martin Kolev
- BG2, Adaptive Immunity Research Unit, GlaxoSmithKline, Stevenage, UK
| | - Jack Bibby
- Complement and Inflammation Research Section (CIRS), National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Olivia Marshall
- Discovery DMPK Bioanalysis Unit, GlaxoSmithKline, Stevenage, UK
| | - Brett O’Brien
- Discovery DMPK Bioanalysis Unit, GlaxoSmithKline, Stevenage, UK
| | - Nigel Deeks
- Discovery DMPK Bioanalysis Unit, GlaxoSmithKline, Stevenage, UK
| | - Behdad Afzali
- Immunoregulation Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, MD 20892, USA
| | - Richard J. Clark
- School of Biomedical Sciences, University of Queensland, Brisbane, Queensland, Australia
| | - Trent M. Woodruff
- School of Biomedical Sciences, University of Queensland, Brisbane, Queensland, Australia
| | - Milton Pryor
- Lipoprotein Metabolism Section, Cardiopulmonary Branch, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Zhi-Hong Yang
- Lipoprotein Metabolism Section, Cardiopulmonary Branch, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Alan T. Remaley
- Lipoprotein Metabolism Section, Cardiopulmonary Branch, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Tom E. Mollnes
- Center of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- Department of Immunology, Oslo University Hospital, Rikshospitalet, and University of Oslo, Oslo, Norway
- Research Laboratory, Nordland Hospital, Bodø, Norway
- K.G. Jebsen TREC, Institute of Clinical Medicine, University of Tromsø, Tromsø, Norway
| | - Stephen M. Hewitt
- Laboratory of Pathology, National Cancer Institute (NCI), NIH, Bethesda, MD 20892, USA
| | - Bingyu Yan
- Departments of Biochemistry and Computer Science, Purdue University, West Lafayette, IN 47907, USA
| | - Majid Kazemian
- Departments of Biochemistry and Computer Science, Purdue University, West Lafayette, IN 47907, USA
| | - Máté G. Kiss
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Christoph J. Binder
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Bente Halvorsen
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Terje Espevik
- Center of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- Central Norway Regional Health Authority, St. Olavs Hospital HF, Trondheim, Norway
| | - Claudia Kemper
- Complement and Inflammation Research Section (CIRS), National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD 20892, USA
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
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Cutolo M, Soldano S, Gotelli E, Montagna P, Campitiello R, Paolino S, Pizzorni C, Sulli A, Smith V, Tardito S. CTLA4-Ig treatment induces M1-M2 shift in cultured monocyte-derived macrophages from healthy subjects and rheumatoid arthritis patients. Arthritis Res Ther 2021; 23:306. [PMID: 34952630 PMCID: PMC8709961 DOI: 10.1186/s13075-021-02691-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 12/03/2021] [Indexed: 12/29/2022] Open
Abstract
Background In rheumatoid arthritis (RA), macrophages play an important role in modulating the immunoinflammatory response through their polarisation into “classically” (M1) or “alternatively activated” (M2) phenotypes. In RA, CTLA4-Ig (abatacept) reduces the inflammatory activity of macrophages by interacting with the costimulatory molecule CD86. The study aimed to investigate the efficacy of CTLA4-Ig treatment to induce an M2 phenotype both in M1-polarised monocyte-derived macrophages (MDMs) obtained from healthy subjects (HS) and in cultured MDMs obtained from active RA patients. Methods Cultured MDMs were obtained from peripheral blood mononuclear cells of 7 active RA patients and from 10 HS after stimulation with phorbol myristate acetate (5 ng/mL) for 24 h. HS-MDMs were then stimulated with lipopolysaccharide (LPS, 1 mg/mL) for 4 h to induce M1-MDMs. M1-MDMs and RA-MDMs were treated with CTLA4-Ig (100 μM and 500 μM) for 3, 12, 24, and 48 h. The gene expression of CD80, CD86, and TLR4 (M1 markers); CD163, CD204, and CD206 (surface M2 markers); and MerTK (functional M2 marker) was evaluated by qRT-PCR. The protein synthesis of surface M2 markers was investigated by Western blotting. The statistical analysis was performed by the Wilcoxon t-test. Results In LPS-induced HS-M1-MDMs, CTLA4-Ig 100 μM and 500 μM significantly downregulated the gene expression of M1 markers (3 h p<0.01 for all molecules; 12 h p<0.05 for TLR4 and CD86) and significantly upregulated that of M2 markers, primarily after 12 h of treatment (CD163: p < 0.01 and p < 0.05; CD206: p < 0.05 and p < 0.01; CD204: p < 0.05 by 100 mg/mL). Moreover, in these cells, CTLA4-Ig 500 μM increased the protein synthesis of surface M2 markers (p < 0.05). Similarly, in RA-MDMs, the CTLA4-Ig treatment significantly downregulated the gene expression of M1 markers at both concentrations primarily after 12 h (p < 0.05). Furthermore, both concentrations of CTLA4-Ig significantly upregulated the gene expression of CD206 (after 3 h of treatment; p < 0.05), CD163, and MerTK (after 12 h of treatment, p < 0.05), whereas CD204 gene expression was significantly upregulated by the high concentration of CTLA4-Ig (p < 0.05). The protein synthesis of all surface markers was increased primarily by CTLA4-Ig 500 μM, significantly for CD204 and CD206 after 24 h of treatment (p < 0.05). Conclusions CTLA4-Ig treatment seems to induce the in vitro shift from M1 to M2 macrophages, of both HS-M1-MDMs and RA-MDMs, as observed by the significant downregulation exerted on selected M1 markers and the upregulation of selected M2 markers suggesting an additional mechanism for its modulation of the RA inflammatory process. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-021-02691-9.
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Affiliation(s)
- Maurizio Cutolo
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS San Martino Polyclinic Hospital, University of Genova, Genoa, Italy.
| | - Stefano Soldano
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS San Martino Polyclinic Hospital, University of Genova, Genoa, Italy
| | - Emanuele Gotelli
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS San Martino Polyclinic Hospital, University of Genova, Genoa, Italy
| | - Paola Montagna
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS San Martino Polyclinic Hospital, University of Genova, Genoa, Italy
| | - Rosanna Campitiello
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS San Martino Polyclinic Hospital, University of Genova, Genoa, Italy
| | - Sabrina Paolino
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS San Martino Polyclinic Hospital, University of Genova, Genoa, Italy
| | - Carmen Pizzorni
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS San Martino Polyclinic Hospital, University of Genova, Genoa, Italy
| | - Alberto Sulli
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS San Martino Polyclinic Hospital, University of Genova, Genoa, Italy
| | - Vanessa Smith
- Department of Rheumatology, Ghent University Hospital, Ghent, Belgium.,Department of Internal Medicine, Ghent University, Ghent, Belgium.,Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center (IRC), Ghent, Belgium
| | - Samuele Tardito
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS San Martino Polyclinic Hospital, University of Genova, Genoa, Italy
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Guo B, Feng X, Wang Y, Wang X, He Y. Biomimetic and immunomodulatory baicalin-loaded graphene oxide-demineralized bone matrix scaffold for in vivo bone regeneration. J Mater Chem B 2021; 9:9720-9733. [PMID: 34787627 DOI: 10.1039/d1tb00618e] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of an artificial bone substitute is a potential strategy for repairing bone defects; however, the inadequate consideration of repair-immune system interactions, resulting in significant pathological changes in the microenvironment, is a major barrier to achieving effective regenerative outcomes. Here, we evaluated a biomimetic baicalin (BAI)-incorporating graphene oxide-demineralized bone matrix (GO-BAI/DBM) hybrid scaffold, which was beneficial for bone regeneration. First, by considering that bone is a kind of organic-inorganic composite, a biomimetic GO/DBM bone substitute with enhanced physiochemical and osteoinductive properties was fabricated. Furthermore, inherently therapeutic GO was also used as a drug delivery carrier to achieve the sustained and prolonged release of BAI. Notably, a series of experiments showed that the GO-BAI nanocomposites could transform inflammatory M1 macrophages into pro-healing M2 macrophages, which was beneficial for in vitro angiogenesis and osteogenesis. By using a rat subcutaneous model, it was revealed that the GO-BAI nanocomposites proactively ameliorated the inflammatory response, which was coupled with decreased fibrous encapsulation. Notably, obvious in situ calvarial bone regeneration was achieved using the GO-BAI/DBM hybrid scaffold. These findings demonstrated that the bifunctional GO-BAI/DBM scaffold, by enhancing beneficial cross-talk among bone cells and inflammatory cells, might be utilized as an effective strategy for bone regeneration.
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Affiliation(s)
- Bing Guo
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China.
| | - Xiaodong Feng
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266000, China
| | - Yun Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
| | - Xiansong Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
| | - Yue He
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China.
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30
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Tobieson L, Gard A, Ruscher K, Marklund N. Intracerebral Proinflammatory Cytokine Increase in Surgically Evacuated Intracerebral Hemorrhage: A Microdialysis Study. Neurocrit Care 2021; 36:876-887. [PMID: 34850333 PMCID: PMC9110446 DOI: 10.1007/s12028-021-01389-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/25/2021] [Indexed: 11/28/2022]
Abstract
Background Treatment options for spontaneous intracerebral hemorrhage (ICH) are limited. A possible inflammatory response in the brain tissue surrounding an ICH may exacerbate the initial injury and could be a target for treatment of subsequent secondary brain injury. The study objective was to compare levels of inflammatory mediators in the interstitial fluid of the perihemorrhagic zone (PHZ) and in seemingly normal cortex (SNX) in the acute phase after surgical evacuation of ICH, with the hypothesis being that a difference could be demonstrated between the PHZ and the SNX. Methods In this observational study, ten patients needing surgical evacuation of supratentorial ICH received two cerebral microdialysis catheters: one in the PHZ and one in the SNX that is remote from the ICH. The microdialysate was analyzed for energy metabolites (including lactate pyruvate ratio and glucose) and for inflammatory mediators by using a multiplex immunoassay of 27 cytokines and chemokines at 6–10 h, 20–26 h, and 44–50 h after surgery.
Results A metabolic crisis, indicated by altered energy metabolic markers, that persisted throughout the observation period was observed in the PHZ when compared with the SNX. Proinflammatory cytokines interleukin (IL) 8, tumor necrosis factor α, IL-2, IL-1β, IL-6 and interferon γ, anti-inflammatory cytokine IL-13, IL-4, and vascular endothelial growth factor A were significantly higher in PHZ compared with SNX and were most prominent at 20–26 h following ICH evacuation.
Conclusions Higher levels of both proinflammatory and anti-inflammatory cytokines in the perihemorrhagic brain tissue implies a complex role for inflammatory mediators in the secondary injury cascades following ICH surgery, suggesting a need for targeted pharmacological interventions. Supplementary Information The online version contains supplementary material available at 10.1007/s12028-021-01389-9.
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Affiliation(s)
- Lovisa Tobieson
- Departments of Neurosurgery in Linköping and Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
| | - Anna Gard
- Department of Clinical Sciences Lund, Neurosurgery, Lund University, Lund, Sweden
| | - Karsten Ruscher
- Department of Clinical Sciences Lund, Neurosurgery, Lund University, Lund, Sweden
| | - Niklas Marklund
- Department of Clinical Sciences Lund, Neurosurgery, Lund University, Lund, Sweden.,Department of Clinical Sciences Lund, Neurosurgery, Lund University, Skåne University Hopsital, Lund, Sweden
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31
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Hagbi-Levi S, Tiosano L, Rinsky B, Levinger N, Elbaz-Hayoun S, Carmi S, Grunin M, Chowers I. Anti-tumor necrosis factor alpha reduces the proangiogenic effects of activated macrophages derived from patients with age-related macular degeneration. Mol Vis 2021; 27:622-631. [PMID: 34924742 PMCID: PMC8645186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 11/17/2021] [Indexed: 11/29/2022] Open
Abstract
PURPOSE Macrophages are believed to promote choroidal neovascularization (CNV) in neovascular age-related macular degeneration (nvAMD); however, the underlying proangiogenic mechanism is poorly understood. Therefore, we examined this mechanism in proinflammatory macrophages derived from patients with nvAMD. METHODS Monocytes were isolated from patients with nvAMD and polarized to form an M1 proangiogenic phenotype. We then screened for the role of proangiogenic cytokines expressed by these macrophages, including TNF-α, VEGF, IL-6, IL-8, and IL-1β, using an ex vivo choroid sprouting assay and an in vivo rodent model of laser-induced CNV (LI-CNV). We also examined the value of inhibiting TNF-α inhibition with respect to reducing the proangiogenic effects of M1 macrophages. Finally, we analyzed the macrophage cytokine expression database to evaluate the feasibility of modulating the expression of TNF-α. RESULTS The cytokines above are expressed at high levels in patient-derived M1 macrophages. However, among the cytokines tested only TNF-α significantly increased choroid sprouting. Moreover, adoptive intravitreal transfer of M1 macrophages significantly increased LI-CNV, and blocking TNF-α abolished the proangiogenic effects of M1 macrophages in both models. An analysis of cytokine expression revealed that >50% of TNF-α expression is determined by modifiable factors. CONCLUSIONS Blocking TNF-α can reduce the proangiogenic effects of M1 macrophages in nvAMD. Thus, activated macrophages may represent a potential therapeutic target for altering TNF-α expression in nvAMD.
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Affiliation(s)
- Shira Hagbi-Levi
- Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel,Hebrew University, Jerusalem, Israel
| | | | - Batya Rinsky
- Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel,Hebrew University, Jerusalem, Israel
| | | | - Sarah Elbaz-Hayoun
- Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel,Hebrew University, Jerusalem, Israel
| | - Shai Carmi
- Braun School of Public Health and Community Medicine, Jerusalem, Israel
| | - Michelle Grunin
- Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel,Hebrew University, Jerusalem, Israel
| | - Itay Chowers
- Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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Antonioli L, Pacher P, Haskó G. Adenosine and inflammation: it's time to (re)solve the problem. Trends Pharmacol Sci 2021; 43:43-55. [PMID: 34776241 DOI: 10.1016/j.tips.2021.10.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/14/2021] [Accepted: 10/20/2021] [Indexed: 02/07/2023]
Abstract
Resolution of inflammation requires proresolving molecular pathways triggered as part of the host response during the inflammatory phase. Adenosine and its receptors, which are collectively called the adenosine system, shape inflammatory cell activity during the active phase of inflammation, leading these immune cells toward a functional repolarization, thus contributing to the onset of resolution. Strategies based on the resolution of inflammation have shaped a new area of pharmacology referred to as 'resolution pharmacology' and in this regard, the adenosine system represents an interesting target to design novel pharmacological tools to 'resolve' the inflammatory process. In this review, we outline the role of the adenosine system in driving the events required for an effective transition from the proinflammatory phase to the onset and establishment of resolution.
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Affiliation(s)
- Luca Antonioli
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Pál Pacher
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD 20892, USA
| | - György Haskó
- Department of Anesthesiology, Columbia University, New York, NY, 10032, USA.
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33
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He L, Jhong JH, Chen Q, Huang KY, Strittmatter K, Kreuzer J, DeRan M, Wu X, Lee TY, Slavov N, Haas W, Marneros AG. Global characterization of macrophage polarization mechanisms and identification of M2-type polarization inhibitors. Cell Rep 2021; 37:109955. [PMID: 34731634 PMCID: PMC8783961 DOI: 10.1016/j.celrep.2021.109955] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/20/2021] [Accepted: 10/15/2021] [Indexed: 01/07/2023] Open
Abstract
Macrophages undergoing M1- versus M2-type polarization differ significantly in their cell metabolism and cellular functions. Here, global quantitative time-course proteomics and phosphoproteomics paired with transcriptomics provide a comprehensive characterization of temporal changes in cell metabolism, cellular functions, and signaling pathways that occur during the induction phase of M1- versus M2-type polarization. Significant differences in, especially, metabolic pathways are observed, including changes in glucose metabolism, glycosaminoglycan metabolism, and retinoic acid signaling. Kinase-enrichment analysis shows activation patterns of specific kinases that are distinct in M1- versus M2-type polarization. M2-type polarization inhibitor drug screens identify drugs that selectively block M2- but not M1-type polarization, including mitogen-activated protein kinase kinase (MEK) and histone deacetylase (HDAC) inhibitors. These datasets provide a comprehensive resource to identify specific signaling and metabolic pathways that are critical for macrophage polarization. In a proof-of-principle approach, we use these datasets to show that MEK signaling is required for M2-type polarization by promoting peroxisome proliferator-activated receptor-γ (PPARγ)-induced retinoic acid signaling.
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Affiliation(s)
- Lizhi He
- Cutaneous Biology Research Center, Massachusetts General Hospital, and Department of Dermatology, Harvard Medical School, Charlestown, MA 02129, USA
| | - Jhih-Hua Jhong
- Department of Computer Science and Engineering, Yuan Ze University, Taoyuan 320, Taiwan; Warshel Institute for Computational Biology, School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Qi Chen
- Warshel Institute for Computational Biology, School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Kai-Yao Huang
- Department of Medical Research, Hsinchu Mackay Memorial Hospital, Hsinchu 300, Taiwan
| | - Karin Strittmatter
- Cutaneous Biology Research Center, Massachusetts General Hospital, and Department of Dermatology, Harvard Medical School, Charlestown, MA 02129, USA
| | - Johannes Kreuzer
- Cancer Center, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Michael DeRan
- Cutaneous Biology Research Center, Massachusetts General Hospital, and Department of Dermatology, Harvard Medical School, Charlestown, MA 02129, USA
| | - Xu Wu
- Cutaneous Biology Research Center, Massachusetts General Hospital, and Department of Dermatology, Harvard Medical School, Charlestown, MA 02129, USA
| | - Tzong-Yi Lee
- Warshel Institute for Computational Biology, School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Nikolai Slavov
- Department of Bioengineering and Department of Biology, Northeastern University, Boston, MA 02115, USA
| | - Wilhelm Haas
- Cancer Center, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Alexander G Marneros
- Cutaneous Biology Research Center, Massachusetts General Hospital, and Department of Dermatology, Harvard Medical School, Charlestown, MA 02129, USA.
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34
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Lan Z, Chen L, Feng J, Xie Z, Liu Z, Wang F, Liu P, Yue X, Du L, Zhao Y, Yang P, Luo J, Zhu Z, Hu X, Cao L, Lu P, Sah R, Lavine K, Kim B, Hu H. Mechanosensitive TRPV4 is required for crystal-induced inflammation. Ann Rheum Dis 2021; 80:1604-1614. [PMID: 34663597 DOI: 10.1136/annrheumdis-2021-220295] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 09/13/2021] [Indexed: 12/12/2022]
Abstract
Crystal structures activate innate immune cells, especially macrophages and initiate inflammatory responses. We aimed to understand the role of the mechanosensitive TRPV4 channel in crystal-induced inflammation. Real-time RT-PCR, RNAscope in situ hybridisation, and Trpv4eGFP mice were used to examine TRPV4 expression and whole-cell patch-clamp recording and live-cell Ca2+ imaging were used to study TRPV4 function in mouse synovial macrophages and human peripheral blood mononuclear cells (PBMCs). Both genetic deletion and pharmacological inhibition approaches were used to investigate the role of TRPV4 in NLRP3 inflammasome activation induced by diverse crystals in vitro and in mouse models of crystal-induced pain and inflammation in vivo. TRPV4 was functionally expressed by synovial macrophages and human PBMCs and TRPV4 expression was upregulated by stimulation with monosodium urate (MSU) crystals and in human PBMCs from patients with acute gout flares. MSU crystal-induced gouty arthritis were significantly reduced by either genetic ablation or pharmacological inhibition of TRPV4 function. Mechanistically, TRPV4 mediated the activation of NLRP3 inflammasome by diverse crystalline materials but not non-crystalline NLRP3 inflammasome activators, driving the production of inflammatory cytokine interleukin-1β which elicited TRPV4-dependent inflammatory responses in vivo. Moreover, chemical ablation of the TRPV1-expressing nociceptors significantly attenuated the MSU crystal-induced gouty arthritis. In conclusion, TRPV4 is a common mediator of inflammatory responses induced by diverse crystals through NLRP3 inflammasome activation in macrophages. TRPV4-expressing resident macrophages are critically involved in MSU crystal-induced gouty arthritis. A neuroimmune interaction between the TRPV1-expressing nociceptors and the TRPV4-expressing synovial macrophages contributes to the generation of acute gout flares.
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Affiliation(s)
- Zhou Lan
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.,School of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, People's Republic of China
| | - Lvyi Chen
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA .,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.,School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, Hubei, People's Republic of China
| | - Jing Feng
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Zili Xie
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Zhiyong Liu
- Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Fang Wang
- Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.,Division of Dermatology, Department of Medicine, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Peng Liu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, Hubei, People's Republic of China
| | - Xueping Yue
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Lixia Du
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Yonghui Zhao
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Pu Yang
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Jialie Luo
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Zhe Zhu
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - Xueming Hu
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Liang Cao
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Ping Lu
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Rajan Sah
- Department of Internal Medicine, Cardiovascular Division, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Kory Lavine
- Department of Internal Medicine, Cardiovascular Division, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Brian Kim
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA.,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.,Division of Dermatology, Department of Medicine, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.,Department of Pathology and Immunology, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Hongzhen Hu
- Department of Anesthesiology, Washington University School of Medicine in St Louis, St. Louis, Missouri, USA .,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.,Division of Dermatology, Department of Medicine, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
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Liu T, Wang L, Liang P, Wang X, Liu Y, Cai J, She Y, Wang D, Wang Z, Guo Z, Bates S, Xia X, Huang J, Cui J. USP19 suppresses inflammation and promotes M2-like macrophage polarization by manipulating NLRP3 function via autophagy. Cell Mol Immunol 2021; 18:2431-2442. [PMID: 33097834 PMCID: PMC8484569 DOI: 10.1038/s41423-020-00567-7] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 09/26/2020] [Indexed: 02/07/2023] Open
Abstract
Macrophage polarization to proinflammatory M1-like or anti-inflammatory M2-like cells is critical to mount a host defense or repair tissue. The exact molecular mechanisms controlling this process are still elusive. Here, we report that ubiquitin-specific protease 19 (USP19) acts as an anti-inflammatory switch that inhibits inflammatory responses and promotes M2-like macrophage polarization. USP19 inhibited NLRP3 inflammasome activation by increasing autophagy flux and decreasing the generation of mitochondrial reactive oxygen species. In addition, USP19 inhibited the proteasomal degradation of inflammasome-independent NLRP3 by cleaving its polyubiquitin chains. USP19-stabilized NLRP3 promoted M2-like macrophage polarization by direct association with interferon regulatory factor 4, thereby preventing its p62-mediated selective autophagic degradation. Consistent with these observations, compared to wild-type mice, Usp19-/- mice had decreased M2-like macrophage polarization and increased interleukin-1β secretion, in response to alum and chitin injections. Thus, we have uncovered an unexpected mechanism by which USP19 switches the proinflammatory function of NLRP3 into an anti-inflammatory function, and suggest that USP19 is a potential therapeutic target for inflammatory interventions.
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Affiliation(s)
- Tao Liu
- grid.12981.330000 0001 2360 039XMOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, Guangdong People’s Republic of China
| | - Liqiu Wang
- grid.12981.330000 0001 2360 039XMOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, Guangdong People’s Republic of China
| | - Puping Liang
- grid.12981.330000 0001 2360 039XMOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, Guangdong People’s Republic of China
| | - Xiaojuan Wang
- grid.12981.330000 0001 2360 039XDepartment of Experimental Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University, 510275 Guangzhou, People’s Republic of China
| | - Yukun Liu
- grid.12981.330000 0001 2360 039XMOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, Guangdong People’s Republic of China
| | - Jing Cai
- grid.12981.330000 0001 2360 039XMOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, Guangdong People’s Republic of China
| | - Yuanchu She
- grid.12981.330000 0001 2360 039XMOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, Guangdong People’s Republic of China
| | - Dan Wang
- grid.12981.330000 0001 2360 039XDepartment of Experimental Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University, 510275 Guangzhou, People’s Republic of China
| | - Zhi Wang
- grid.12981.330000 0001 2360 039XGuanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Stomatological Hospital, Sun Yat-Sen University, 510060 Guangzhou, Guangdong People’s Republic of China
| | - Zhiyong Guo
- grid.12981.330000 0001 2360 039XOrgan Transplant Center, The First Affiliated Hospital, Sun Yat-Sen University, 510080 Guangzhou, Guangdong People’s Republic of China
| | - Samuel Bates
- grid.38142.3c000000041936754XChanning Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115 USA
| | - Xiaojun Xia
- grid.12981.330000 0001 2360 039XDepartment of Experimental Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University, 510275 Guangzhou, People’s Republic of China
| | - Junjiu Huang
- grid.12981.330000 0001 2360 039XMOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, Guangdong People’s Republic of China
| | - Jun Cui
- grid.12981.330000 0001 2360 039XMOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, Guangdong People’s Republic of China ,grid.12981.330000 0001 2360 039XDepartment of Experimental Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University, 510275 Guangzhou, People’s Republic of China
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P2X7-deficiency improves plasticity and cognitive abilities in a mouse model of Tauopathy. Prog Neurobiol 2021; 206:102139. [PMID: 34391810 DOI: 10.1016/j.pneurobio.2021.102139] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 07/06/2021] [Accepted: 08/06/2021] [Indexed: 12/29/2022]
Abstract
Alzheimer's disease is the most common form of dementia characterized by intracellular aggregates of hyperphosphorylated Tau protein and extracellular accumulation of amyloid β (Aβ) peptides. We previously demonstrated that the purinergic receptor P2X7 (P2X7) plays a major role in Aβ-mediated neurodegeneration but the relationship between P2X7 and Tau remained overlooked. Such a link was supported by cortical upregulation of P2X7 in patients with various type of frontotemporal lobar degeneration, including mutation in the Tau-coding gene, MAPT, as well as in the brain of a Tauopathy mouse model (THY-Tau22). Subsequent phenotype analysis of P2X7-deficient Tau mice revealed the instrumental impact of this purinergic receptor. Indeed, while P2X7-deficiency had a moderate effect on Tau pathology itself, we observed a significant reduction of microglia activation and of Tau-related inflammatory mediators, particularly CCL4. Importantly, P2X7 deletion ultimately rescued synaptic plasticity and memory impairments of Tau mice. Altogether, the present data support a contributory role of P2X7 dysregulation on processes governing Tau-induced brain anomalies. Due to the convergent role of P2X7 blockade in both Aβ and Tau background, P2X7 inhibitors might prove to be ideal candidate drugs to curb the devastating cognitive decline in Alzheimer's disease and Tauopathies.
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Dynamin-related protein 1 deficiency accelerates lipopolysaccharide-induced acute liver injury and inflammation in mice. Commun Biol 2021; 4:894. [PMID: 34290349 PMCID: PMC8295278 DOI: 10.1038/s42003-021-02413-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 06/30/2021] [Indexed: 12/21/2022] Open
Abstract
Mitochondrial fusion and fission, which are strongly related to normal mitochondrial function, are referred to as mitochondrial dynamics. Mitochondrial fusion defects in the liver cause a non-alcoholic steatohepatitis-like phenotype and liver cancer. However, whether mitochondrial fission defect directly impair liver function and stimulate liver disease progression, too, is unclear. Dynamin-related protein 1 (DRP1) is a key factor controlling mitochondrial fission. We hypothesized that DRP1 defects are a causal factor directly involved in liver disease development and stimulate liver disease progression. Drp1 defects directly promoted endoplasmic reticulum (ER) stress, hepatocyte death, and subsequently induced infiltration of inflammatory macrophages. Drp1 deletion increased the expression of numerous genes involved in the immune response and DNA damage in Drp1LiKO mouse primary hepatocytes. We administered lipopolysaccharide (LPS) to liver-specific Drp1-knockout (Drp1LiKO) mice and observed an increased inflammatory cytokine expression in the liver and serum caused by exaggerated ER stress and enhanced inflammasome activation. This study indicates that Drp1 defect-induced mitochondrial dynamics dysfunction directly regulates the fate and function of hepatocytes and enhances LPS-induced acute liver injury in vivo.
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38
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Pellegrini C, Fornai M, Benvenuti L, Colucci R, Caputi V, Palazon-Riquelme P, Giron MC, Nericcio A, Garelli F, D'Antongiovanni V, Segnani C, Ippolito C, Nannipieri M, Lopez-Castejon G, Pelegrin P, Haskó G, Bernardini N, Blandizzi C, Antonioli L. NLRP3 at the crossroads between immune/inflammatory responses and enteric neuroplastic remodelling in a mouse model of diet-induced obesity. Br J Pharmacol 2021; 178:3924-3942. [PMID: 34000757 DOI: 10.1111/bph.15532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 04/26/2021] [Accepted: 04/29/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND PURPOSE Enteric neurogenic/inflammation contributes to bowel dysmotility in obesity. We examined the role of NLRP3 in colonic neuromuscular dysfunctions in mice with high-fat diet (HFD)-induced obesity. EXPERIMENTAL APPROACH Wild-type C57BL/6J and NLRP3-KO (Nlrp3-/- ) mice were fed with HFD or standard diet for 8 weeks. The activation of inflammasome pathways in colonic tissues from obese mice was assessed. The role of NLRP3 in in vivo colonic transit and in vitro tachykininergic contractions and substance P distribution was evaluated. The effect of substance P on NLRP3 signalling was tested in cultured cells. KEY RESULTS HFD mice displayed increased body and epididymal fat weight, cholesterol levels, plasma resistin levels and plasma and colonic IL-1β levels, colonic inflammasome adaptor protein apoptosis-associated speck-like protein containing caspase-recruitment domain (ASC) and caspase-1 mRNA expression and ASC immunopositivity in macrophages. Colonic tachykininergic contractions were enhanced in HFD mice. HFD NLRP3-/- mice developed lower increase in body and epididymal fat weight, cholesterol levels, systemic and bowel inflammation. In HFD Nlrp3-/- mice, the functional alterations of tachykinergic pathways and faecal output were normalized. In THP-1 cells, substance P promoted IL-1β release. This effect was inhibited upon incubation with caspase-1 inhibitor or NK1 antagonist and not observed in ASC-/- cells. CONCLUSION AND IMPLICATIONS In obesity, NLRP3 regulates an interplay between the shaping of enteric immune/inflammatory responses and the activation of substance P/NK1 pathways underlying the onset of colonic dysmotility. Identifying NLRP3 as a therapeutic target for the treatment of bowel symptoms related to obesity.
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Affiliation(s)
- Carolina Pellegrini
- Department of Pharmacy, University of Pisa, Pisa, Italy.,Lydia Becker Institute of Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Matteo Fornai
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Laura Benvenuti
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Rocchina Colucci
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padua, Italy
| | - Valentina Caputi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padua, Italy.,APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Pablo Palazon-Riquelme
- Lydia Becker Institute of Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Maria Cecilia Giron
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padua, Italy
| | - Anna Nericcio
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padua, Italy
| | - Francesca Garelli
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padua, Italy
| | | | - Cristina Segnani
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Chiara Ippolito
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Monica Nannipieri
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Gloria Lopez-Castejon
- Lydia Becker Institute of Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Pablo Pelegrin
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - György Haskó
- Department of Anesthesiology, Columbia University, New York, New York, USA
| | - Nunzia Bernardini
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.,Interdepartmental Research Center "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy
| | - Corrado Blandizzi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Luca Antonioli
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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Huan Y, Wei J, Su T, Gao Y. Urine proteome changes in a chronic unpredictable mild stress (CUMS) mouse model of major depressive disorder. J Pharm Biomed Anal 2021; 199:114064. [PMID: 33862505 DOI: 10.1016/j.jpba.2021.114064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/29/2021] [Accepted: 04/04/2021] [Indexed: 12/19/2022]
Abstract
Major depressive disorder (MDD) is a prevalent complex psychiatric disorder, and there are no effective biomarkers for clinical diagnosis. Urine is not subjected to homeostatic control, allowing it to reflect the sensitive changes that occur in various diseases. In this study, we examined the urine proteome changes in a chronic unpredictable mild stress mouse model of MDD. Male C57BL/6 mice were subjected to chronic unpredictable mild stress for 5 weeks. The tail suspension test and sucrose consumption test were then applied to evaluate depression-like behaviors. The urine proteomes on day 0 and day 36 in the CUMS group were profiled by liquid chromatography coupled with tandem mass spectrometry (LCMS/MS). A total of 36 differential proteins were identified, 19 of which have been associated with the pathogenic mechanisms of MDD. There was an average of two differential proteins that were identified through 1,048,574 random combination statistical analyses, indicating that at least 95 % of the differential proteins were reliable. The differential proteins were mainly associated with blood coagulation, inflammatory responses and central nervous system development. Our preliminary results indicated that the urine proteome can reflect changes associated with MDD in the CUMS model, which provides potential clues for the diagnosis of MDD.
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Affiliation(s)
- Yuhang Huan
- Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing, 100875, China.
| | - Jing Wei
- Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing, 100875, China.
| | - Tong Su
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences and Peking Union Medical College, Neuroscience Center, Chinese Academy of Medical Sciences, Beijing, 100005, China.
| | - Youhe Gao
- Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing, 100875, China.
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40
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Rahabi M, Jacquemin G, Prat M, Meunier E, AlaEddine M, Bertrand B, Lefèvre L, Benmoussa K, Batigne P, Aubouy A, Auwerx J, Kirzin S, Bonnet D, Danjoux M, Pipy B, Alric L, Authier H, Coste A. Divergent Roles for Macrophage C-type Lectin Receptors, Dectin-1 and Mannose Receptors, in the Intestinal Inflammatory Response. Cell Rep 2021; 30:4386-4398.e5. [PMID: 32234475 DOI: 10.1016/j.celrep.2020.03.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 12/19/2019] [Accepted: 03/05/2020] [Indexed: 12/17/2022] Open
Abstract
Colonic macrophages are considered to be major effectors of inflammatory bowel diseases (IBDs) and the control of gut inflammation through C-type lectin receptors is an emerging concept. We show that during colitis, the loss of dectin-1 on myeloid cells prevents intestinal inflammation, while the lack of mannose receptor (MR) exacerbates it. A marked increase in dectin-1 expression in dextran sulfate sodium (DSS)-exposed MR-deficient mice supports the critical contribution of dectin-1 to colitis outcome. Dectin-1 is crucial for Ly6ChighCCR2high monocyte population enrichment in the blood and their recruitment to inflamed colon as precursors of inflammatory macrophages. Dectin-1 also promotes inflammasome-dependent interleukin-1β (IL-1β) secretion through leukotriene B4 production. Interestingly, colonic inflammation is associated with a concomitant overexpression of dectin-1/CCL2/LTA4H and downregulation of MR on macrophages from IBD patients. Thus, MR and dectin-1 on macrophages are important mucosal inflammatory regulators that contribute to the intestinal inflammation.
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Affiliation(s)
- Mouna Rahabi
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France
| | | | - Mélissa Prat
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France
| | - Etienne Meunier
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France
| | - Mohamad AlaEddine
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France
| | | | - Lise Lefèvre
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France
| | | | - Philippe Batigne
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France
| | - Agnès Aubouy
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France
| | - Johan Auwerx
- Metabolic Signaling, Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausane, Lausane 1015, Switzerland
| | - Sylvain Kirzin
- Department of Surgery and Digestive Diseases, CHU Purpan, Université de Toulouse, Toulouse, France
| | - Delphine Bonnet
- Department of Internal Medicine and Digestive Diseases, CHU Purpan, Toulouse, France; IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Marie Danjoux
- Department of Pathology, CHU Purpan, Université de Toulouse, Toulouse, France
| | - Bernard Pipy
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France
| | - Laurent Alric
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France; Department of Internal Medicine and Digestive Diseases, CHU Purpan, Toulouse, France
| | - Hélène Authier
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France.
| | - Agnès Coste
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, Toulouse, France
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Jang JH, Kim DH, Surh YJ. Dynamic roles of inflammasomes in inflammatory tumor microenvironment. NPJ Precis Oncol 2021; 5:18. [PMID: 33686176 PMCID: PMC7940484 DOI: 10.1038/s41698-021-00154-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 01/12/2021] [Indexed: 02/08/2023] Open
Abstract
The inflammatory tumor microenvironment has been known to be closely connected to all stages of cancer development, including initiation, promotion, and progression. Systemic inflammation in the tumor microenvironment is increasingly being recognized as an important prognostic marker in cancer patients. Inflammasomes are master regulators in the first line of host defense for the initiation of innate immune responses. Inflammasomes sense pathogen-associated molecular patterns and damage-associated molecular patterns, following recruitment of immune cells into infection sites. Therefore, dysregulated expression/activation of inflammasomes is implicated in pathogenesis of diverse inflammatory disorders. Recent studies have demonstrated that inflammasomes play a vital role in regulating the development and progression of cancer. This review focuses on fate-determining roles of the inflammasomes and the principal downstream effector cytokine, IL-1β, in the tumor microenvironment.
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Affiliation(s)
- Jeong-Hoon Jang
- grid.31501.360000 0004 0470 5905Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Do-Hee Kim
- grid.411203.50000 0001 0691 2332Department of Chemistry, College of Convergence and Integrated Science, Kyonggi University, Suwon, Gyeonggi-do South Korea
| | - Young-Joon Surh
- grid.31501.360000 0004 0470 5905Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, South Korea ,grid.31501.360000 0004 0470 5905Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea ,grid.31501.360000 0004 0470 5905Cancer Research Institute, Seoul National University, Seoul, South Korea
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42
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Liao WT, Hung CH, Liang SS, Yu S, Lu JH, Lee CH, Chai CY, Yu HS. Anti-Inflammatory Effects Induced by Near-Infrared Light Irradiation through M2 Macrophage Polarization. J Invest Dermatol 2021; 141:2056-2066.e10. [PMID: 33676947 DOI: 10.1016/j.jid.2020.11.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 10/27/2020] [Accepted: 11/18/2020] [Indexed: 11/18/2022]
Abstract
Near-infrared (NIR) can penetrate the dermis. NIR is able to regulate cutaneous component cells and immune cells and shows significant anti-inflammatory therapeutic effects. However, the mechanisms of these effects are largely unknown. The purpose of this study is to elucidate NIR-induced molecular mechanisms on macrophages because macrophages play initial roles in directing immune responses by their M1 or M2 polarizations. Proteomic analysis revealed that NIR radiation enhanced the expression of mitochondrial respiratory gene citrate synthase. This increased citrate synthase expression was triggered by NIR-induced H3K4 hypermethylation on the citrate synthase gene promoter but not by heat, which led to macrophage M2 polarization and finally resulted in TGFβ1 release from CD4+ cells. These cellular effects were validated in human primary macrophages and abdominal NIR-irradiated mouse experiments. In a phorbol 12-myristate 13-acetate‒induced inflammatory model on mouse ear, we confirmed that NIR irradiation induced significant anti-inflammatory effects through decreased M1 counts, reduced TNF-α, and increased CCL22 and/or TGFβ1 levels.
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Affiliation(s)
- Wei-Ting Liao
- Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan; Department of Medical Research, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Hsing Hung
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shih-Shin Liang
- Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Sebastian Yu
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Dermatology, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jian-He Lu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Hung Lee
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital of the C.G.M.F., Kaohsiung, Taiwan
| | - Chee-Yin Chai
- Department of Pathology, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsin-Su Yu
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Dermatology, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Taiwan.
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43
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Zhang W, Gao L, Ren W, Li S, Zheng J, Li S, Jiang C, Yang S, Zhi K. The Role of the Immune Response in the Development of Medication-Related Osteonecrosis of the Jaw. Front Immunol 2021; 12:606043. [PMID: 33717086 PMCID: PMC7947359 DOI: 10.3389/fimmu.2021.606043] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 02/03/2021] [Indexed: 12/22/2022] Open
Abstract
Medication-related osteonecrosis of the jaw (MRONJ) is a rare but serious adverse drug effect. There are multiple hypotheses to explain the development of MRONJ. Reduced bone remodeling and infection or inflammation are considered central to the pathogenesis of MRONJ. In recent years, increasing evidence has shown that bisphosphonates (BPs)-mediated immunity dysfunction is associated with the pathophysiology of MRONJ. In a healthy state, mucosal immunity provides the first line of protection against pathogens and oral mucosal immune cells defense against potentially invading pathogens by mediating the generation of protective immunoinflammatory responses. In addition, the immune system takes part in the process of bone remodeling and tissue repair. However, the treatment of BPs disturbs the mucosal and osteo immune homeostasis and thus impairs the body's ability to resist infection and repair from injury, thereby adding to the development of MRONJ. Here, we present the current knowledge about immunity dysfunction to shed light on the role of local immune disorder in the development of MRONJ.
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Affiliation(s)
- Weidong Zhang
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China
| | - Ling Gao
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China.,Key Laboratory of Oral Clinical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wenhao Ren
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shaoming Li
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jingjing Zheng
- Key Laboratory of Oral Clinical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China.,Department of Endodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shasha Li
- Department of Stomatology, Binzhou People'Hospital, Binzhou, China
| | - Chunmiao Jiang
- Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shuying Yang
- Department of Anatomy and Cell Biology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Keqian Zhi
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China.,Key Laboratory of Oral Clinical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
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Tezcan G, Garanina EE, Alsaadi M, Gilazieva ZE, Martinova EV, Markelova MI, Arkhipova SS, Hamza S, McIntyre A, Rizvanov AA, Khaiboullina SF. Therapeutic Potential of Pharmacological Targeting NLRP3 Inflammasome Complex in Cancer. Front Immunol 2021; 11:607881. [PMID: 33613529 PMCID: PMC7887322 DOI: 10.3389/fimmu.2020.607881] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/17/2020] [Indexed: 12/19/2022] Open
Abstract
Introduction Dysregulation of NLRP3 inflammasome complex formation can promote chronic inflammation by increased release of IL-1β. However, the effect of NLRP3 complex formation on tumor progression remains controversial. Therefore, we sought to determine the effect of NLRP3 modulation on the growth of the different types of cancer cells, derived from lung, breast, and prostate cancers as well as neuroblastoma and glioblastoma in-vitro. Method The effect of Caspase 1 inhibitor (VX765) and combination of LPS/Nigericin on NLRP3 inflammasome activity was analyzed in A549 (lung cancer), MCF-7 (breast cancer), PC3 (prostate cancer), SH-SY5Y (neuroblastoma), and U138MG (glioblastoma) cells. Human fibroblasts were used as control cells. The effect of VX765 and LPS/Nigericin on NLRP3 expression was analyzed using western blot, while IL-1β and IL-18 secretion was detected by ELISA. Tumor cell viability and progression were determined using Annexin V, cell proliferation assay, LDH assay, sphere formation assay, transmission electron microscopy, and a multiplex cytokine assay. Also, angiogenesis was investigated by a tube formation assay. VEGF and MMPs secretion were detected by ELISA and a multiplex assay, respectively. Statistical analysis was done using one-way ANOVA with Tukey’s analyses and Kruskal–Wallis one-way analysis of variance. Results LPS/Nigericin increased NRLP3 protein expression as well as IL-1β and IL-18 secretion in PC3 and U138MG cells compared to A549, MCF7, SH-SY5Y cells, and fibroblasts. In contrast, MIF expression was commonly found upregulated in A549, PC3, SH-SY5Y, and U138MG cells and fibroblasts after Nigericin treatment. Nigericin and a combination of LPS/Nigericin decreased the cell viability and proliferation. Also, LPS/Nigericin significantly increased tumorsphere size in PC3 and U138MG cells. In contrast, the sphere size was reduced in MCF7 and SH-SY5Y cells treated with LPS/Nigericin, while no effect was detected in A549 cells. VX765 increased secretion of CCL24 in A549, MCF7, PC3, and fibroblasts as well as CCL11 and CCL26 in SH-SY5Y cells. Also, VX765 significantly increased the production of VEGF and MMPs and stimulated angiogenesis in all tumor cell lines. Discussion Our data suggest that NLRP3 activation using Nigericin could be a novel therapeutic approach to control the growth of tumors producing a low level of IL-1β and IL-18.
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Affiliation(s)
- Gulcin Tezcan
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia.,Department of Fundamental Sciences, Faculty of Dentistry, Bursa Uludag University, Bursa, Turkey
| | - Ekaterina E Garanina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Mohammad Alsaadi
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Zarema E Gilazieva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Ekaterina V Martinova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Maria I Markelova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Svetlana S Arkhipova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Shaimaa Hamza
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Alan McIntyre
- Centre for Cancer Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, United Kingdom
| | - Albert A Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Svetlana F Khaiboullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia.,Department of Microbiology and Immunology, University of Nevada, Reno, NV, United States
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45
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Zhong B, Du J, Liu F, Liu Y, Liu S, Zhang J, Lin P, Zhou J, Liu J, Ong HH, Tan KS, Wang D, Ba L. Hypoxia-induced factor-1α induces NLRP3 expression by M1 macrophages in noneosinophilic chronic rhinosinusitis with nasal polyps. Allergy 2021; 76:582-586. [PMID: 32854144 DOI: 10.1111/all.14571] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 08/13/2020] [Accepted: 08/18/2020] [Indexed: 02/05/2023]
Affiliation(s)
- Bing Zhong
- Upper Airway Research Laboratory Department of Otolaryngology‐Head and Neck Surgery West China Hospital Sichuan University Chengdu China
- Department of Otolaryngology Yong Loo Lin School of Medicine, National University of Singapore, National University Health System Singapore Singapore
| | - Jintao Du
- Upper Airway Research Laboratory Department of Otolaryngology‐Head and Neck Surgery West China Hospital Sichuan University Chengdu China
| | - Feng Liu
- Upper Airway Research Laboratory Department of Otolaryngology‐Head and Neck Surgery West China Hospital Sichuan University Chengdu China
| | - Yafeng Liu
- Upper Airway Research Laboratory Department of Otolaryngology‐Head and Neck Surgery West China Hospital Sichuan University Chengdu China
| | - Shixi Liu
- Upper Airway Research Laboratory Department of Otolaryngology‐Head and Neck Surgery West China Hospital Sichuan University Chengdu China
| | - Jie Zhang
- Upper Airway Research Laboratory Department of Otolaryngology‐Head and Neck Surgery West China Hospital Sichuan University Chengdu China
| | - Ping Lin
- Upper Airway Research Laboratory Department of Otolaryngology‐Head and Neck Surgery West China Hospital Sichuan University Chengdu China
| | - Jiao Zhou
- State Key Laboratory of Biotherapy West China Hospital Sichuan University Chengdu China
| | - Jing Liu
- Department of Otolaryngology Yong Loo Lin School of Medicine, National University of Singapore, National University Health System Singapore Singapore
| | - Hsiao Hui Ong
- Department of Otolaryngology Yong Loo Lin School of Medicine, National University of Singapore, National University Health System Singapore Singapore
| | - Kai Sen Tan
- Department of Otolaryngology Yong Loo Lin School of Medicine, National University of Singapore, National University Health System Singapore Singapore
| | - Deyun Wang
- Department of Otolaryngology Yong Loo Lin School of Medicine, National University of Singapore, National University Health System Singapore Singapore
| | - Luo Ba
- Department of Otolaryngology People's Hospital of Tibet Autonomous Region Lhasa China
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46
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Chen J, Chen T, Zhou J, Zhao X, Sheng Q, Lv Z. MiR-146a-5p Mimic Inhibits NLRP3 Inflammasome Downstream Inflammatory Factors and CLIC4 in Neonatal Necrotizing Enterocolitis. Front Cell Dev Biol 2021; 8:594143. [PMID: 33585442 PMCID: PMC7876392 DOI: 10.3389/fcell.2020.594143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 12/31/2020] [Indexed: 12/02/2022] Open
Abstract
Objective: Necrotizing enterocolitis (NEC) is a gastrointestinal emergency with a severe inflammation storm, intestinal necrosis, and perforation. MicroRNA-146a-5p (miR-146a-5p) has been reported to be a valuable anti-inflammatory factor in various intestinal inflammatory disorders. However, the role of miR-146a-5p in NEC, its effects on nucleotide-binding domain and leucine-rich repeat-containing protein 3 (NLRP3) inflammasome, and its downstream inflammatory factors remain unknown. This study aimed to investigate the role of miR-146a-5p and NLRP3 inflammasome and its downstream inflammatory factors in NEC development. Methods: The expression levels of miR-146a and NLRP3 inflammasome were investigated in intestinal tissues. Next, the mechanism by which miR-146a-5p regulates NLRP3 inflammasome activation was explored in vitro in THP-1 cells. Finally, to identify the effects of miR-146a-5p on NEC in vivo, NEC mice were transinfected with miR-146a-5p overexpression adenovirus before the occurrence of NEC. Results: NLRP3 inflammasome enzymatic protein caspase-1 and its downstream inflammatory factors increased in NEC intestinal samples in both humans and mice, and miR-146a-5p expression level was increased and mainly expressed in the macrophages of the affected intestine. In vitro, only miR-146a-5p mimic inhibited NLRP3 inflammasome downstream inflammatory factors and its upstream protein chloride intracellular channel protein 4 (CLIC4) expression in cellular membrane in the THP-1 cell line, and this only occurred under mild/moderate LPS concentration. MiR-146a-5p overexpression adenovirus transfection reduced CLIC4 cellular membrane expression and inhibited NLRP3 downstream factors increasing in vivo. After the transfection of miR-146a-5p adenovirus, the survival rate of NEC mice was increased, and intestinal injury was ameliorated. Conclusion: MiR-146a-5p inhibited NLRP3 inflammasome downstream inflammatory factors and CLIC4 membrane expression in NEC. Additionally, miR-146a-5p could attenuate inflammation and intestinal injury in the NEC-affected intestine.
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Affiliation(s)
- Jianglong Chen
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Tong Chen
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jin Zhou
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiuhao Zhao
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Qingfeng Sheng
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zhibao Lv
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
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47
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Li J, Meng Q, Fu Y, Yu X, Ji T, Chao Y, Chen Q, Li Y, Bian H. Novel insights: Dynamic foam cells derived from the macrophage in atherosclerosis. J Cell Physiol 2021; 236:6154-6167. [PMID: 33507545 DOI: 10.1002/jcp.30300] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/22/2020] [Accepted: 01/15/2021] [Indexed: 12/12/2022]
Abstract
Atherosclerosis can be regarded as a chronic disease derived from the interaction between disordered lipoproteins and an unsuitable immune response. The evolution of foam cells is not only a significant pathological change in the early stage of atherosclerosis but also a key stage in the occurrence and development of atherosclerosis. The formation of foam cells is mainly caused by the imbalance among lipids uptake, lipids treatment, and reverse cholesterol transport. Although a large number of studies have summarized the source of foam cells and the mechanism of foam cells formation, we propose a new idea about foam cells in atherosclerosis. Rather than an isolated microenvironment, the macrophage multiple lipid uptake pathways, lipid internalization, lysosome, mitochondria, endoplasmic reticulum, neutral cholesterol ester hydrolase (NCEH), acyl-coenzyme A-cholesterol acyltransferase (ACAT), and reverse cholesterol transport are mutually influential, and form a dynamic process under multi-factor regulation. The macrophage takes on different uptake lipid statuses depending on multiple uptake pathways and intracellular lipids, lipid metabolites versus pro-inflammatory factors. Except for NCEH and ACAT, the lipid internalization of macrophages also depends on multicellular organelles including the lysosome, mitochondria, and endoplasmic reticulum, which are associated with each other. A dynamic balance between esterification and hydrolysis of cholesterol for macrophages is essential for physiology and pathology. Therefore, we propose that the foam cell in the process of atherosclerosis may be dynamic under multi-factor regulation, and collate this study to provide a holistic and dynamic idea of the foam cell.
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Affiliation(s)
- Jun Li
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qinghai Meng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yu Fu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xichao Yu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Tingting Ji
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ying Chao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qi Chen
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yu Li
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Huimin Bian
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China.,Jiangsu Key Laboratory of Therapeutic Material of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
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48
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Zheng Z, Chen Y, Hong H, Shen Y, Wang Y, Sun J, Wang X. The "Yin and Yang" of Immunomodulatory Magnesium-Enriched Graphene Oxide Nanoscrolls Decorated Biomimetic Scaffolds in Promoting Bone Regeneration. Adv Healthc Mater 2021; 10:e2000631. [PMID: 33166076 DOI: 10.1002/adhm.202000631] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 10/16/2020] [Indexed: 01/23/2023]
Abstract
Tissue regeneration driven by immunomodulatory agents has emerged as a potential solution for repairing bone defects. However, the therapeutic benefits are compromised by disturbances in the pro- and anti-inflammatory balance. Here, using magnesium nanoparticles (MgNPs) as a template, magnesium-enriched graphene oxide nanoscrolls (MgNPs@GNSs) designed for combinational modulation of the inflammatory response are reported. First, the different effects of graphene oxide (GO) and magnesium ions (Mg2+ ) on Raw264.7 macrophage phenotype transformation are screened. The results reveal that GO activates inflammatory M1 macrophages, and that Mg2+ facilitates repolarization of M1 macrophages to the pro-healing M2 phenotype. With sustained release of Mg2+ , the MgNPs@GNS nanoplatform can orchestrate harmonious type 1 and type 2 inflammatory responses. Mg2+ decrease the internalization of GO and downregulate the nuclear factor kappa-B pathway, which is profoundly involved in the inflammatory process. A series of experiments show that the ordered inflammatory response induced by MgNPs@GNSs stimulates in vitro angiogenesis and osteogenesis through chemotactic, mitogenic, and morphogenic actions. Obvious vascularized bone regeneration is achieved in a rat cranial bone defect model via MgNPs@GNS deposited decellularized bone matrix scaffold. Therefore, the potential of using inherently therapeutic nanomedicine to modulate biomaterial-induced immune responses and thus enhance bone regeneration is demonstrated.
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Affiliation(s)
- Zhiwei Zheng
- Department of Oral and Maxillofacial Head & Neck Oncology Shanghai Key Laboratory Stomatology Shanghai Research Institute of Stomatology Ninth People's Hospital Shanghai Jiao Tong University School of Medicine 639 Zhizaoju Road Shanghai 200011 China
| | - Yahong Chen
- Department of Plastic and Reconstructive Surgery Shanghai Key Laboratory of Tissue Engineering Ninth People's Hospital Shanghai Jiao Tong University School of Medicine National Tissue Engineering Center of China 639 Zhizaoju Road Shanghai 200011 China
| | - Hao Hong
- Medical School of Nanjing University 22 Hankou Road Nanjing Jiangsu 210093 China
| | - Yi Shen
- Department of Oral and Maxillofacial Head & Neck Oncology Shanghai Key Laboratory Stomatology Shanghai Research Institute of Stomatology Ninth People's Hospital Shanghai Jiao Tong University School of Medicine 639 Zhizaoju Road Shanghai 200011 China
| | - Yun Wang
- Department of Plastic and Reconstructive Surgery Shanghai Key Laboratory of Tissue Engineering Ninth People's Hospital Shanghai Jiao Tong University School of Medicine National Tissue Engineering Center of China 639 Zhizaoju Road Shanghai 200011 China
| | - Jian Sun
- Department of Oral and Maxillofacial Head & Neck Oncology Shanghai Key Laboratory Stomatology Shanghai Research Institute of Stomatology Ninth People's Hospital Shanghai Jiao Tong University School of Medicine 639 Zhizaoju Road Shanghai 200011 China
| | - Xiansong Wang
- Department of Plastic and Reconstructive Surgery Shanghai Key Laboratory of Tissue Engineering Ninth People's Hospital Shanghai Jiao Tong University School of Medicine National Tissue Engineering Center of China 639 Zhizaoju Road Shanghai 200011 China
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Ferrucci V, Asadzadeh F, Collina F, Siciliano R, Boccia A, Marrone L, Spano D, Carotenuto M, Chiarolla CM, De Martino D, De Vita G, Macrì A, Dassi L, Vandenbussche J, Marino N, Cantile M, Paolella G, D'Andrea F, di Bonito M, Gevaert K, Zollo M. Prune-1 drives polarization of tumor-associated macrophages (TAMs) within the lung metastatic niche in triple-negative breast cancer. iScience 2020; 24:101938. [PMID: 33426510 PMCID: PMC7779777 DOI: 10.1016/j.isci.2020.101938] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/22/2020] [Accepted: 12/09/2020] [Indexed: 12/16/2022] Open
Abstract
M2-tumor-associated macrophages (M2-TAMs) in the tumor microenvironment represent a prognostic indicator for poor outcome in triple-negative breast cancer (TNBC). Here we show that Prune-1 overexpression in human TNBC patients has positive correlation to lung metastasis and infiltrating M2-TAMs. Thus, we demonstrate that Prune-1 promotes lung metastasis in a genetically engineered mouse model of metastatic TNBC augmenting M2-polarization of TAMs within the tumor microenvironment. Thus, this occurs through TGF-β enhancement, IL-17F secretion, and extracellular vesicle protein content modulation. We also find murine inactivating gene variants in human TNBC patient cohorts that are involved in activation of the innate immune response, cell adhesion, apoptotic pathways, and DNA repair. Altogether, we indicate that the overexpression of Prune-1, IL-10, COL4A1, ILR1, and PDGFB, together with inactivating mutations of PDE9A, CD244, Sirpb1b, SV140, Iqca1, and PIP5K1B genes, might represent a route of metastatic lung dissemination that need future prognostic validations. Prune-1 correlates to M2-TAMs confirming lung metastatic dissemination in GEMM Cytokines and EV proteins are responsible of M2-TAMs polarization processes A small molecule with immunomodulatory properties ameliorates metastatic dissemination Identification of gene variants within immune response and cell adhesion in TNBC
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Affiliation(s)
- Veronica Ferrucci
- CEINGE, Biotecnologie Avanzate, Naples 80145, Italy.,Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples 80134, Italy.,European School of Molecular Medicine (SEMM), University of Milan, Milan, Italy
| | - Fatemeh Asadzadeh
- CEINGE, Biotecnologie Avanzate, Naples 80145, Italy.,Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples 80134, Italy
| | - Francesca Collina
- Pathology Unit, Istituto Nazionale Tumori-IRCS- Fondazione G.Pascale, Naples 80131, Italy
| | | | | | - Laura Marrone
- CEINGE, Biotecnologie Avanzate, Naples 80145, Italy.,Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples 80134, Italy
| | | | - Marianeve Carotenuto
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples 80134, Italy
| | | | - Daniela De Martino
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples 80134, Italy
| | - Gennaro De Vita
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples 80134, Italy
| | | | - Luisa Dassi
- CEINGE, Biotecnologie Avanzate, Naples 80145, Italy
| | - Jonathan Vandenbussche
- VIB-UGent Centre for Medical Biotechnology, Ghent 9052, Belgium.,Department of Biomolecular Medicine, Ghent University, B9052 Ghent, Belgium
| | - Natascia Marino
- CEINGE, Biotecnologie Avanzate, Naples 80145, Italy.,Department of Medicine, Indiana University-Purdue University Indianapolis, Indianapolis 46202, USA
| | - Monica Cantile
- Pathology Unit, Istituto Nazionale Tumori-IRCS- Fondazione G.Pascale, Naples 80131, Italy
| | | | - Francesco D'Andrea
- Dipartimento di Sanità pubblica - AOU, Università; degli Studi di Napoli Federico II, Naples 80131, Italy
| | - Maurizio di Bonito
- Pathology Unit, Istituto Nazionale Tumori-IRCS- Fondazione G.Pascale, Naples 80131, Italy
| | - Kris Gevaert
- VIB-UGent Centre for Medical Biotechnology, Ghent 9052, Belgium.,Department of Biomolecular Medicine, Ghent University, B9052 Ghent, Belgium
| | - Massimo Zollo
- CEINGE, Biotecnologie Avanzate, Naples 80145, Italy.,Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples 80134, Italy.,European School of Molecular Medicine (SEMM), University of Milan, Milan, Italy.,DAI Medicina di Laboratorio e Trasfusionale, AOU Federico II, Naples 80131, Italy
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50
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Stimulation of soluble guanylate cyclase exerts antiinflammatory actions in the liver through a VASP/NF-κB/NLRP3 inflammasome circuit. Proc Natl Acad Sci U S A 2020; 117:28263-28274. [PMID: 33106416 PMCID: PMC7668051 DOI: 10.1073/pnas.2000466117] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Fatty liver, which is an initial step in the development of more severe complications such as liver cirrhosis, is prevalent worldwide in our society. This study demonstrates that stimulation of soluble guanylate cyclase (sGC), an enzyme producing the second messenger cGMP, protects against the most common features of fatty liver, namely inflammation and fibrosis, in animal models of the disease. Our study also provides an explanation for this protection and describes how sGC stimulation blocks the inflammasome (a protein complex responsible for the production of the potent proinflammatory cytokine interleukin-1β) in liver macrophages. The results of this study support the investigation of sGC stimulators, which are already approved for treatment in other conditions, in patients with fatty liver disease. Soluble guanylate cyclase (sGC) catalyzes the conversion of guanosine triphosphate into cyclic guanosine-3′,5′-monophosphate, a key second messenger in cell signaling and tissue homeostasis. It was recently demonstrated that sGC stimulation is associated with a marked antiinflammatory effect in the liver of mice with experimental nonalcoholic steatohepatitis (NASH). Here, we investigated the mechanisms underlying the antiinflammatory effect of the sGC stimulator praliciguat (PRL) in the liver. Therapeutic administration of PRL exerted antiinflammatory and antifibrotic actions in mice with choline-deficient l-amino acid-defined high-fat diet-induced NASH. The PRL antiinflammatory effect was associated with lower F4/80- and CX3CR1-positive macrophage infiltration into the liver in parallel with lower Ly6CHigh- and higher Ly6CLow-expressing monocytes in peripheral circulation. The PRL antiinflammatory effect was also associated with suppression of hepatic levels of interleukin (IL)-1β, NLPR3 (NACHT, LRR, and PYD domain-containing protein 3), ASC (apoptosis-associated speck-like protein containing a caspase-recruitment domain), and active cleaved-caspase-1, which are components of the NLRP3 inflammasome. In Kupffer cells challenged with the classical inflammasome model of lipopolysaccharide plus adenosine triphosphate, PRL inhibited the priming (expression of Il1b and Nlrp3) and blocked the release of mature IL-1β. Mechanistically, PRL induced the protein kinase G (PKG)-mediated phosphorylation of the VASP (vasodilator-stimulated phosphoprotein) Ser239 residue which, in turn, reduced nuclear factor-κB (NF-κB) activity and Il1b and Nlrp3 gene transcription. PRL also reduced active cleaved-caspase-1 levels independent of pannexin-1 activity. These data indicate that sGC stimulation with PRL exerts antiinflammatory actions in the liver through mechanisms related to a PKG/VASP/NF-κB/NLRP3 inflammasome circuit.
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