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Gumede DB, Abrahamse H, Houreld NN. Targeting Wnt/β-catenin signaling and its interplay with TGF-β and Notch signaling pathways for the treatment of chronic wounds. Cell Commun Signal 2024; 22:244. [PMID: 38671406 PMCID: PMC11046856 DOI: 10.1186/s12964-024-01623-9] [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: 02/29/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024] Open
Abstract
Wound healing is a tightly regulated process that ensures tissue repair and normal function following injury. It is modulated by activation of pathways such as the transforming growth factor-beta (TGF-β), Notch, and Wnt/β-catenin signaling pathways. Dysregulation of this process causes poor wound healing, which leads to tissue fibrosis and ulcerative wounds. The Wnt/β-catenin pathway is involved in all phases of wound healing, primarily in the proliferative phase for formation of granulation tissue. This review focuses on the role of the Wnt/β-catenin signaling pathway in wound healing, and its transcriptional regulation of target genes. The crosstalk between Wnt/β-catenin, Notch, and the TGF-β signaling pathways, as well as the deregulation of Wnt/β-catenin signaling in chronic wounds are also considered, with a special focus on diabetic ulcers. Lastly, we discuss current and prospective therapies for chronic wounds, with a primary focus on strategies that target the Wnt/β-catenin signaling pathway such as photobiomodulation for healing diabetic ulcers.
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Affiliation(s)
- Dimakatso B Gumede
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa
| | - Nicolette N Houreld
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa.
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2
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Kiselev A, Park S. Immune niches for hair follicle development and homeostasis. Front Physiol 2024; 15:1397067. [PMID: 38711955 PMCID: PMC11070776 DOI: 10.3389/fphys.2024.1397067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/09/2024] [Indexed: 05/08/2024] Open
Abstract
The hair follicle is a dynamic mini-organ that has specialized cycles and architectures with diverse cell types to form hairs. Previous studies for several decades have investigated morphogenesis and signaling pathways during embryonic development and adult hair cycles in both mouse and human skin. In particular, hair follicle stem cells and mesenchymal niches received major attention as key players, and their roles and interactions were heavily revealed. Although resident and circulating immune cells affect cellular function and interactions in the skin, research on immune cells has mainly received attention on diseases rather than development or homeostasis. Recently, many studies have suggested the functional roles of diverse immune cells as a niche for hair follicles. Here, we will review recent findings about immune niches for hair follicles and provide insight into mechanisms of hair growth and diseases.
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Affiliation(s)
- Artem Kiselev
- Institute for Quantitative Health Science and Engineering (IQ), Michigan State University, East Lansing, MI, United States
- Division of Dermatology, Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, MI, United States
- Department of Pharmacology and Toxicology, College of Human Medicine, Michigan State University, East Lansing, MI, United States
| | - Sangbum Park
- Institute for Quantitative Health Science and Engineering (IQ), Michigan State University, East Lansing, MI, United States
- Division of Dermatology, Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, MI, United States
- Department of Pharmacology and Toxicology, College of Human Medicine, Michigan State University, East Lansing, MI, United States
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3
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Zelikson N, Ben S, Caspi M, Tarabe R, Shaleve Y, Pri-Paz Basson Y, Tayer-Shifman O, Goldberg E, Kivity S, Rosin-Arbesfeld R. Wnt signaling regulates chemokine production and cell migration of circulating human monocytes. Cell Commun Signal 2024; 22:229. [PMID: 38622714 PMCID: PMC11020454 DOI: 10.1186/s12964-024-01608-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 04/09/2024] [Indexed: 04/17/2024] Open
Abstract
The β-catenin dependent canonical Wnt signaling pathway plays a crucial role in maintaining normal homeostasis. However, when dysregulated, Wnt signaling is closely associated with various pathological conditions, including inflammation and different types of cancer.Here, we show a new connection between the leukocyte inflammatory response and the Wnt signaling pathway. Specifically, we demonstrate that circulating human primary monocytes express distinct Wnt signaling components and are susceptible to stimulation by the classical Wnt ligand-Wnt-3a. Although this stimulation increased the levels of β-catenin protein, the expression of the classical Wnt-target genes was not affected. Intriguingly, treating circulating human monocytes with Wnt-3a induces the secretion of cytokines and chemokines, enhancing monocyte migration. Mechanistically, the enhanced monocyte migration in response to Wnt stimuli is mediated through CCL2, a strong monocyte-chemoattractant.To further explore the physiological relevance of these findings, we conducted ex-vivo experiments using blood samples of patients with rheumatic joint diseases (RJD) - conditions where monocytes are known to be dysfunctional. Wnt-3a generated a unique cytokine expression profile, which was significantly distinct from that observed in monocytes obtained from healthy donors.Thus, our results provide the first evidence that Wnt-3a may serve as a potent stimulator of monocyte-driven immune processes. These findings contribute to our understanding of inflammatory diseases and, more importantly, shed light on the role of a core signaling pathway in the circulation.
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Affiliation(s)
- Natalie Zelikson
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shaina Ben
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Michal Caspi
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Raneen Tarabe
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Yonatan Shaleve
- Department of Medicine F, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Yael Pri-Paz Basson
- Rheumatology Unit, Meir Medical Center, Kfar Saba, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Oshrat Tayer-Shifman
- Rheumatology Unit, Meir Medical Center, Kfar Saba, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Elad Goldberg
- Department of Medicine F, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shaye Kivity
- Rheumatology Unit, Meir Medical Center, Kfar Saba, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Rina Rosin-Arbesfeld
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel.
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4
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Babaeijandaghi F, Kajabadi N, Long R, Tung LW, Cheung CW, Ritso M, Chang CK, Cheng R, Huang T, Groppa E, Jiang JX, Rossi FMV. DPPIV + fibro-adipogenic progenitors form the niche of adult skeletal muscle self-renewing resident macrophages. Nat Commun 2023; 14:8273. [PMID: 38092736 PMCID: PMC10719395 DOI: 10.1038/s41467-023-43579-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 11/14/2023] [Indexed: 12/17/2023] Open
Abstract
Adult tissue-resident macrophages (RMs) are either maintained by blood monocytes or through self-renewal. While the presence of a nurturing niche is likely crucial to support the survival and function of self-renewing RMs, evidence regarding its nature is limited. Here, we identify fibro-adipogenic progenitors (FAPs) as the main source of colony-stimulating factor 1 (CSF1) in resting skeletal muscle. Using parabiosis in combination with FAP-deficient transgenic mice (PdgfrαCreERT2 × DTA) or mice lacking FAP-derived CSF1 (PdgfrαCreERT2 × Csf1flox/null), we show that local CSF1 from FAPs is required for the survival of both TIM4- monocyte-derived and TIM4+ self-renewing RMs in adult skeletal muscle. The spatial distribution and number of TIM4+ RMs coincide with those of dipeptidyl peptidase IV (DPPIV)+ FAPs, suggesting their role as CSF1-producing niche cells for self-renewing RMs. This finding identifies opportunities to precisely manipulate the function of self-renewing RMs in situ to further unravel their role in health and disease.
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Affiliation(s)
- Farshad Babaeijandaghi
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada.
- Altos Labs Inc, San Diego, CA, USA.
| | - Nasim Kajabadi
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada
| | - Reece Long
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada
| | - Lin Wei Tung
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada
| | - Chun Wai Cheung
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada
| | - Morten Ritso
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada
| | - Chih-Kai Chang
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada
| | - Ryan Cheng
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada
| | - Tiffany Huang
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada
| | - Elena Groppa
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada
| | - Jean X Jiang
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229, TX, USA
| | - Fabio M V Rossi
- Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T1Z3, BC, Canada.
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5
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Mankuzhy P, Dharmarajan A, Perumalsamy LR, Sharun K, Samji P, Dilley RJ. The role of Wnt signaling in mesenchymal stromal cell-driven angiogenesis. Tissue Cell 2023; 85:102240. [PMID: 37879288 DOI: 10.1016/j.tice.2023.102240] [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: 05/13/2023] [Revised: 09/28/2023] [Accepted: 10/11/2023] [Indexed: 10/27/2023]
Abstract
Development, growth, and remodeling of blood vessels occur through an intricate process involving cell differentiation, proliferation, and rearrangement by cell migration under the direction of various signaling pathways. Recent reports highlight that resident and exogenous mesenchymal stromal cells (MSCs) have the potential to regulate the neovascularization process through paracrine secretion of proangiogenic factors. Recent research has established that the vasculogenic potential of MSCs is regulated by several signaling pathways, including the Wnt signaling pathway, and their interplay. These findings emphasize the complex nature of the vasculogenic process and underscore the importance of understanding the underlying molecular mechanisms for the development of effective cell-based therapies in regenerative medicine. This review provides an updated briefing on the canonical and non-canonical Wnt signaling pathways and summarizes the recent reports of both in vitro and in vivo studies with the involvement of MSCs of various sources in the vasculogenic process mediated by Wnt signaling pathways. Here we outline the current understanding of the plausible role of the Wnt signaling pathway, specifically in MSC-regulated angiogenesis.
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Affiliation(s)
- Pratheesh Mankuzhy
- Department of Surgery and Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, 6009 Perth, Australia; College of Veterinary and Animal Sciences - Mannuthy, Kerala Veterinary and Animal Sciences University, Pookode, Wayanad, Kerala 673576 India.
| | - Arun Dharmarajan
- Department of Biomedical Sciences, Sri Ramachandra faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai 600116, India; School of Pharmacy and Biomedical Sciences, Curtin University, Bentley, Perth, Western Australia, Australia; School of Human Sciences, Faculty of Life Sciences, University of Western Australia, 6009 Perth, Australia
| | - Lakshmi R Perumalsamy
- Department of Biomedical Sciences, Sri Ramachandra faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai 600116, India
| | - Khan Sharun
- Division of Surgery, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India
| | - Priyanka Samji
- Department of Biomedical Sciences, Sri Ramachandra faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai 600116, India
| | - Rodney J Dilley
- Department of Surgery and Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, 6009 Perth, Australia
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6
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Wu J, Chan YT, Lu Y, Wang N, Feng Y. The tumor microenvironment in the postsurgical liver: Mechanisms and potential targets of postoperative recurrence in human hepatocellular carcinoma. Med Res Rev 2023; 43:1946-1973. [PMID: 37102365 DOI: 10.1002/med.21967] [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: 01/07/2022] [Revised: 03/23/2023] [Accepted: 04/13/2023] [Indexed: 04/28/2023]
Abstract
Surgery remains to be the mainstay of treatment for hepatocellular carcinoma (HCC). Nonetheless, its therapeutic efficacy is significantly impaired by postoperative recurrence, which occurs in more than half of cases as a result of intrahepatic metastasis or de novo tumorigenesis. For decades, most therapeutic strategies on inhibiting postoperative HCC recurrence have been focused on the residual tumor cells but satisfying therapeutic outcomes are barely observed in the clinic. In recent years, a better understanding of tumor biology allows us to shift our focus from tumor cells toward the postoperative tumor microenvironment (TME), which is gradually identified to play a pivotal role in tumor recurrence. In this review, we describe various surgical stress and surgical perturbation on postoperative TME. Besides, we discuss how such alternations in TME give rise to postoperative recurrence of HCC. Based on its clinical significance, we additionally highlight the potential of the postoperative TME as a target for postoperative adjuvant therapeutics.
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Affiliation(s)
- Junyu Wu
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yau-Tuen Chan
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yuanjun Lu
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Ning Wang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yibin Feng
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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7
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Mourtada J, Lony C, Nicol A, De Azevedo J, Bour C, Macabre C, Roncarati P, Ledrappier S, Schultz P, Borel C, Burgy M, Wasylyk B, Mellitzer G, Herfs M, Gaiddon C, Jung AC. A novel ΔNp63-dependent immune mechanism improves prognosis of HPV-related head and neck cancer. Front Immunol 2023; 14:1264093. [PMID: 38022675 PMCID: PMC10630910 DOI: 10.3389/fimmu.2023.1264093] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/29/2023] [Indexed: 12/01/2023] Open
Abstract
Background Deconvoluting the heterogenous prognosis of Human Papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OSCC) is crucial for enhancing patient care, given its rapidly increasing incidence in western countries and the adverse side effects of OSCC treatments. Methods Transcriptomic data from HPV-positive OSCC samples were analyzed using unsupervised hierarchical clustering, and clinical relevance was evaluated using Kaplan-Meier analysis. HPV-positive OSCC cell line models were used in functional analyses and phenotypic assays to assess cell migration and invasion, response to cisplatin, and phagocytosis by macrophages in vitro. Results We found, by transcriptomic analysis of HPV-positive OSCC samples, a ΔNp63 dependent molecular signature that is associated with patient prognosis. ΔNp63 was found to act as a tumor suppressor in HPV-positive OSCC at multiple levels. It inhibits cell migration and invasion, and favors response to chemotherapy. RNA-Seq analysis uncovered an unexpected regulation of genes, such as DKK3, which are involved in immune response-signalling pathways. In agreement with these observations, we found that ΔNp63 expression levels correlate with an enhanced anti-tumor immune environment in OSCC, and ΔNp63 promotes cancer cell phagocytosis by macrophages through a DKK3/NF-κB-dependent pathway. Conclusion Our findings are the first comprehensive identification of molecular mechanisms involved in the heterogeneous prognosis of HPV-positive OSCC, paving the way for much-needed biomarkers and targeted treatment.
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Affiliation(s)
- Jana Mourtada
- Laboratoire de Biologie Tumorale, Institut de cancérologie Strasbourg Europe, Strasbourg, France
- Université de Strasbourg-Inserm, UMR_S 1113 IRFAC, Laboratory « Streinth », Strasbourg, France
| | - Christelle Lony
- Laboratoire de Biologie Tumorale, Institut de cancérologie Strasbourg Europe, Strasbourg, France
- Université de Strasbourg-Inserm, UMR_S 1113 IRFAC, Laboratory « Streinth », Strasbourg, France
| | - Anaïs Nicol
- Laboratoire de Radiobiologie, Institut de cancérologie Strasbourg Europe, Strasbourg, France
| | - Justine De Azevedo
- Laboratoire de Biologie Tumorale, Institut de cancérologie Strasbourg Europe, Strasbourg, France
- Université de Strasbourg-Inserm, UMR_S 1113 IRFAC, Laboratory « Streinth », Strasbourg, France
| | - Cyril Bour
- Laboratoire de Biologie Tumorale, Institut de cancérologie Strasbourg Europe, Strasbourg, France
- Université de Strasbourg-Inserm, UMR_S 1113 IRFAC, Laboratory « Streinth », Strasbourg, France
| | - Christine Macabre
- Laboratoire de Biologie Tumorale, Institut de cancérologie Strasbourg Europe, Strasbourg, France
- Université de Strasbourg-Inserm, UMR_S 1113 IRFAC, Laboratory « Streinth », Strasbourg, France
- Tumorothèque du Centre Paul Strauss, Centre Paul Strauss, Strasbourg, France
| | - Patrick Roncarati
- Laboratory of Experimental Pathology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Sonia Ledrappier
- Tumorothèque du Centre Paul Strauss, Centre Paul Strauss, Strasbourg, France
| | - Philippe Schultz
- Hôpitaux Universitaires de Strasbourg, Department of Otorhinolaryngology and Head and Neck Surgery, Strasbourg, France
| | - Christian Borel
- Department of Medical Oncology, Institut de cancérologie Strasbourg Europe, Strasbourg, France
| | - Mickaël Burgy
- Department of Medical Oncology, Institut de cancérologie Strasbourg Europe, Strasbourg, France
| | - Bohdan Wasylyk
- Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch-Graffenstaden, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U 1258, Illkirch-Graffenstaden, France
- Centre Nationale de la Recherche Scientifique (CNRS) UMR 7104, Illkirch-Graffenstaden, France
- Université de Strasbourg, Strasbourg, France
| | - Georg Mellitzer
- Université de Strasbourg-Inserm, UMR_S 1113 IRFAC, Laboratory « Streinth », Strasbourg, France
| | - Michaël Herfs
- Laboratory of Experimental Pathology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Christian Gaiddon
- Université de Strasbourg-Inserm, UMR_S 1113 IRFAC, Laboratory « Streinth », Strasbourg, France
| | - Alain C. Jung
- Laboratoire de Biologie Tumorale, Institut de cancérologie Strasbourg Europe, Strasbourg, France
- Université de Strasbourg-Inserm, UMR_S 1113 IRFAC, Laboratory « Streinth », Strasbourg, France
- Tumorothèque du Centre Paul Strauss, Centre Paul Strauss, Strasbourg, France
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8
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Li M, Wang M, Wen Y, Zhang H, Zhao G, Gao Q. Signaling pathways in macrophages: molecular mechanisms and therapeutic targets. MedComm (Beijing) 2023; 4:e349. [PMID: 37706196 PMCID: PMC10495745 DOI: 10.1002/mco2.349] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/24/2023] [Accepted: 07/27/2023] [Indexed: 09/15/2023] Open
Abstract
Macrophages play diverse roles in development, homeostasis, and immunity. Accordingly, the dysfunction of macrophages is involved in the occurrence and progression of various diseases, such as coronavirus disease 2019 and atherosclerosis. The protective or pathogenic effect that macrophages exert in different conditions largely depends on their functional plasticity, which is regulated via signal transduction such as Janus kinase-signal transducer and activator of transcription, Wnt and Notch pathways, stimulated by environmental cues. Over the past few decades, the molecular mechanisms of signaling pathways in macrophages have been gradually elucidated, providing more alternative therapeutic targets for diseases treatment. Here, we provide an overview of the basic physiology of macrophages and expound the regulatory pathways within them. We also address the crucial role macrophages play in the pathogenesis of diseases, including autoimmune, neurodegenerative, metabolic, infectious diseases, and cancer, with a focus on advances in macrophage-targeted strategies exploring modulation of components and regulators of signaling pathways. Last, we discuss the challenges and possible solutions of macrophage-targeted therapy in clinical applications. We hope that this comprehensive review will provide directions for further research on therapeutic strategies targeting macrophage signaling pathways, which are promising to improve the efficacy of disease treatment.
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Affiliation(s)
- Ming Li
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Mengjie Wang
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yuanjia Wen
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Hongfei Zhang
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Guang‐Nian Zhao
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Qinglei Gao
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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9
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Nakamura T, Fujiwara M. Comparative Immunohistochemical Analysis of Macrophage Phenotypes in Cutaneous Sarcoid Granuloma, Suture Granuloma, and Lipogranuloma. Am J Dermatopathol 2023; 45:371-377. [PMID: 37130221 DOI: 10.1097/dad.0000000000002446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
ABSTRACT Granulomas are composed of a heterogeneous population of resident and recruited macrophages according to the type of lesion, extent of injury, and local tissue environment (eg, involved site and interaction with infiltrating lymphocytes). Although macrophage phenotypes in various types of granulomas have been previously described, the experimental conditions varied across studies, precluding a comparative and comprehensive understanding of granulomas. This study was conducted to comparatively analyze the expression of markers of the M1 and M2 phenotypes in macrophages that compose various types of granulomas, including epithelioid lesions, under strict conditions. Surgical specimens of cutaneous sarcoidosis (11 lesions), suture granuloma (10 lesions), and subcutaneous lipogranuloma (12 lesions) were immunohistochemically stained for CD11c, CD206, CD163, and CD10. The expression of these markers in macrophages composing each type of granuloma was scored and statistically analyzed. Granuloma macrophages were mostly immunoreactive for CD11c and CD206 in all the examined cases, although many intermingling CD206-negative cells were observed in 5 cases of lipogranuloma. CD163 and CD10 were diffusely expressed in macrophages composing suture granuloma and lipogranuloma, whereas they were not expressed in epithelioid cells in cutaneous sarcoidosis. Meanwhile, "interstitial" macrophages around epithelioid granulomas revealed moderate to marked CD163 expression in 7 lesions of cutaneous sarcoidosis. These results indicate significant differences of expression of CD163 and CD10 between cutaneous sarcoidosis and suture granuloma/lipogranuloma; CD163 and CD10 are downregulated after the epithelioid transformation of macrophages in cutaneous sarcoidosis.
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10
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Du L, Dai B, Liu X, Zhou D, Yan H, Shen T, Wang D, Tan X. KDM6B regulates M2 polarization of macrophages by modulating the stability of nuclear β-catenin. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166611. [PMID: 36427698 DOI: 10.1016/j.bbadis.2022.166611] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 10/21/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
Accumulating evidences suggest that the epigenetic regulation plays a pivotal role in establishing phenotype and function of tumor associated macrophages (TAMs). KDM6B is an epigenetic enzyme responsible for the H3K27me3 and reported to influence macrophage polarization. However, the underlying mechanism remains to be determined. Here, we demonstrated that inhibition of KDM6B in TAMs increased M2 polarization induced by coculture of breast cancer cells. Furthermore, we identified that KDM6B downregulation activated β-catenin/c-Myc signaling, and thus promoted the M2-like phenotype. KDM6B accelerated the intranuclear ubiquitination degradation of β-catenin, which depended on its demethylase activity. Therapeutically, our data showed that activated vitamin D analog paricalcitol upregulated the expression of KDM6B and decreased the M2 polarization, consequently protected against tumor progress in the xenograft mouse model of breast cancer. Taken together, our data reveal that epigenetic regulator KDM6B prevents M2 polarization via promoting the intranuclear degradation of β-catenin. Active vitamin D analog induces KDM6B and suppresses tumor progress, suggesting a novel therapeutic potential of epigenetic modulation for the tumor treatment.
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Affiliation(s)
- Lingfang Du
- School of Medicine, Nankai University, Tianjin 300071, China; Clinical Medical Research Center, the Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Bo Dai
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Xuan Liu
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Donghui Zhou
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Heng Yan
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Tianyu Shen
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Dekun Wang
- School of Medicine, Nankai University, Tianjin 300071, China.
| | - Xiaoyue Tan
- School of Medicine, Nankai University, Tianjin 300071, China.
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Qin H, Luo Z, Sun Y, He Z, Qi B, Chen Y, Wang J, Li C, Lin W, Han Z, Zhu Y. Low-intensity pulsed ultrasound promotes skeletal muscle regeneration via modulating the inflammatory immune microenvironment. Int J Biol Sci 2023; 19:1123-1145. [PMID: 36923940 PMCID: PMC10008697 DOI: 10.7150/ijbs.79685] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 01/15/2023] [Indexed: 03/14/2023] Open
Abstract
Background: Low-intensity pulsed ultrasound (LIPUS, a form of mechanical stimulation) can promote skeletal muscle functional repair, but a lack of mechanistic understanding of its relationship and tissue regeneration limits progress in this field. We investigated the hypothesis that specific energy levels of LIPUS mediates skeletal muscle regeneration by modulating the inflammatory microenvironment. Methods: To address these gaps, LIPUS irritation was applied in vivo for 5 min at two different intensities (30mW/cm2 and 60mW/cm2) in next 7 consecutive days, and the treatment begun at 24h after air drop-induced contusion injury. In vitro experiments, LIPUS irritation was applied at three different intensities (30mW/cm2, 45mW/cm2, and 60mW/cm2) for 2 times 24h after introduction of LPS in RAW264.7. Then, we comprehensively assessed the functional and histological parameters of skeletal muscle injury in mice and the phenotype shifting in macrophages through molecular biological methods and immunofluorescence analysis both in vivo and in vitro. Results: We reported that LIPUS therapy at intensity of 60mW/cm2 exhibited the most significant differences in functional recovery of contusion-injured muscle in mice. The comprehensive functional tests and histological analysis in vivo indirectly and directly proved the effectiveness of LIPUS for muscle recovery. Through biological methods and immunofluorescence analysis both in vivo and in vitro, we found that this improvement was attributable in part to the clearance of M1 macrophages populations and the increase in M2 subtypes with the change of macrophage-mediated factors. Depletion of macrophages in vivo eliminated the therapeutic effects of LIPUS, indicating that improvement in muscle function was the result of M2-shifted macrophage polarization. Moreover, the M2-inducing effects of LIPUS were proved partially through the WNT pathway by upregulating FZD5 expression and enhancing β-catenin nuclear translocation in macrophages both in vitro and in vivo. The inhibition and augment of WNT pathway in vitro further verified our results. Conclusion: LIPUS at intensity of 60mW/cm2 could significantly promoted skeletal muscle regeneration through shifting macrophage phenotype from M1 to M2. The ability of LIPUS to direct macrophage polarization may be a beneficial target in the clinical treatment of many injuries and inflammatory diseases.
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Affiliation(s)
- Haocheng Qin
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhiwen Luo
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yaying Sun
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhong He
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Beijie Qi
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University, Shanghai, China
| | - Yisheng Chen
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Junlong Wang
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Ce Li
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Weiwei Lin
- Department of Neurosurgery, Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Zhejiang, China
| | - Zhihua Han
- Department of Orthopedics and Traumatology, Shanghai General Hospital Shanghai Jiaotong University, Shanghai, China
| | - Yulian Zhu
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
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12
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Macrophages and Wnts in Tissue Injury and Repair. Cells 2022; 11:cells11223592. [PMID: 36429021 PMCID: PMC9688352 DOI: 10.3390/cells11223592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
Macrophages are important players in the immune system that sense various tissue challenges and trigger inflammation. Tissue injuries are followed by inflammation, which is tightly coordinated with tissue repair processes. Dysregulation of these processes leads to chronic inflammation or tissue fibrosis. Wnt ligands are present both in homeostatic and pathological conditions. However, their roles and mechanisms regulating inflammation and tissue repair are being investigated. Here we aim to provide an overview of overarching themes regarding Wnt and macrophages by reviewing the previous literature. We aim to gain future insights into how tissue inflammation, repair, regeneration, and fibrosis events are regulated by macrophages.
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13
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Chaves-Pérez A, Santos-de-Frutos K, de la Rosa S, Herranz-Montoya I, Perna C, Djouder N. Transit-amplifying cells control R-spondins in the mouse crypt to modulate intestinal stem cell proliferation. J Exp Med 2022; 219:213460. [PMID: 36098959 PMCID: PMC9475298 DOI: 10.1084/jem.20212405] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 06/24/2022] [Accepted: 08/09/2022] [Indexed: 11/04/2022] Open
Abstract
Intestinal epithelium regenerates rapidly through proliferation of intestinal stem cells (ISCs), orchestrated by potent mitogens secreted within the crypt niche. However, mechanisms regulating these mitogenic factors remain largely unknown. Here, we demonstrate that transit-amplifying (TA) cells, marked by unconventional prefoldin RPB5 interactor (URI), control R-spondin production to guide ISC proliferation. Genetic intestinal URI ablation in mice injures TA cells, reducing their survival capacity, leading to an inflamed tissue and subsequently decreasing R-spondin levels, thereby causing ISC quiescence and disruption of intestinal structure. R-spondin supplementation or restoration of R-spondin levels via cell death inhibition by c-MYC elimination or the suppression of inflammation reinstates ISC proliferation in URI-depleted mice. However, selective c-MYC and p53 suppression are required to fully restore TA cell survival and differentiation capacity and preserve complete intestinal architecture. Our data reveal an unexpected role of TA cells, which represent a signaling platform instrumental for controlling inflammatory cues and R-spondin production, essential for maintaining ISC proliferation and tissue regeneration.
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Affiliation(s)
- Almudena Chaves-Pérez
- Molecular Oncology Programme, Growth Factors, Nutrients and Cancer Group, Centro Nacional Investigaciones Oncológicas, Madrid, Spain
| | - Karla Santos-de-Frutos
- Molecular Oncology Programme, Growth Factors, Nutrients and Cancer Group, Centro Nacional Investigaciones Oncológicas, Madrid, Spain
| | - Sergio de la Rosa
- Molecular Oncology Programme, Growth Factors, Nutrients and Cancer Group, Centro Nacional Investigaciones Oncológicas, Madrid, Spain
| | - Irene Herranz-Montoya
- Molecular Oncology Programme, Growth Factors, Nutrients and Cancer Group, Centro Nacional Investigaciones Oncológicas, Madrid, Spain
| | - Cristian Perna
- Department of Pathology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria, Madrid, Spain
| | - Nabil Djouder
- Molecular Oncology Programme, Growth Factors, Nutrients and Cancer Group, Centro Nacional Investigaciones Oncológicas, Madrid, Spain
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14
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Avery D, Morandini L, Sheakley LS, Shah AH, Bui L, Abaricia JO, Olivares-Navarrete R. Canonical Wnt signaling enhances pro-inflammatory response to titanium by macrophages. Biomaterials 2022; 289:121797. [PMID: 36156410 PMCID: PMC10262842 DOI: 10.1016/j.biomaterials.2022.121797] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/22/2022] [Accepted: 09/05/2022] [Indexed: 11/19/2022]
Abstract
Biomaterial characteristics like surface roughness and wettability can determine the phenotype of macrophages following implantation. We have demonstrated that inhibiting Wnt ligand secretion abolishes macrophage polarization in vitro and in vivo; however, the role of canonical Wnt signaling in macrophage activation in response to physical and chemical biomaterial cues is unknown. The aim of this study was to understand whether canonical Wnt signaling affects the response of macrophages to titanium (Ti) surface roughness or wettability in vitro and in vivo. Activating canonical Wnt signaling increased expression of toll-like receptors and interleukin receptors and secreted pro-inflammatory cytokines and reduced anti-inflammatory cytokines on Ti, regardless of surface properties. Inhibiting canonical Wnt signaling reduced pro-inflammatory cytokines on all Ti surfaces and increased anti-inflammatory cytokines on rough or rough-hydrophilic Ti. In vivo, activating canonical Wnt signaling increased total macrophages, pro-inflammatory macrophages, and T cells and decreased anti-inflammatory macrophages on both smooth and rough-hydrophilic implants. Functionally, canonical Wnt activation increases pro-inflammatory macrophage response to cell and cell-extracellular matrix lysates. These results demonstrate that activating canonical Wnt signaling primes macrophages to a pro-inflammatory phenotype that affects their response to Ti implants in vitro and in vivo.
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Affiliation(s)
- Derek Avery
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Lais Morandini
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Luke S Sheakley
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Arth H Shah
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Loc Bui
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Jefferson O Abaricia
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States.
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15
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Cramer M, Pineda Molina C, Hussey G, Turnquist HR, Badylak SF. Transcriptomic Regulation of Macrophages by Matrix-Bound Nanovesicle-Associated Interleukin-33. Tissue Eng Part A 2022; 28:867-878. [PMID: 35770892 PMCID: PMC9634988 DOI: 10.1089/ten.tea.2022.0006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 06/14/2022] [Indexed: 11/12/2022] Open
Abstract
The innate immune response, particularly the phenotype of responding macrophages, has significant clinical implications in the remodeling outcome following implantation of biomaterials and engineered tissues. In general, facilitation of an anti-inflammatory (M2-like) phenotype is associated with tissue repair and favorable outcomes, whereas pro-inflammatory (M1-like) activation can contribute to chronic inflammation and a classic foreign body response. Biologic scaffolds composed of extracellular matrix (ECM) and, more recently, matrix-bound nanovesicles (MBV) embedded within the ECM are known to direct macrophages toward an anti-inflammatory phenotype and stimulate a constructive remodeling outcome. The mechanisms of MBV-mediated macrophage activation are not fully understood, but interleukin-33 (IL-33) within the MBV appears critical for M2-like activation. Previous work has shown that IL-33 is encapsulated within the lumen of MBV and stimulates phenotypical changes in macrophages independent of its canonical surface receptor stimulation-2 (ST2). In the present study, we used next-generation RNA sequencing to determine the gene signature of macrophages following exposure to MBV with and without intraluminal IL-33. MBV-associated IL-33 instructed an anti-inflammatory phenotype in both wild-type and st2-/- macrophages by upregulating M2-like and downregulating M1-like genes. The repertoire of genes regulated by ST2-independent IL-33 signaling were broadly related to the inflammatory response and crosstalk between cells of both the innate and adaptive immune systems. These results signify the importance of the MBV intraluminal protein IL-33 in stimulating a pro-remodeling M2-like phenotype in macrophages and provides guidance for the designing of next-generation biomaterials and tissue engineering strategies. Impact statement The phenotype of responding macrophages is predictive of the downstream remodeling response to an implanted biomaterial. The clinical impact of macrophage phenotype has motivated studies to investigate the factors that regulate macrophage activation. Matrix-bound nanovesicles (MBV) embedded within the extracellular matrix direct macrophages toward an anti-inflammatory (M2)-like phenotype that is indicative of a favorable remodeling response. Although the mechanisms of MBV-mediated macrophage activation are not fully understood, the intraluminal protein interleukin-33 (IL-33) is clearly a contributing signaling molecule. The present study identifies those genes regulated by MBV-associated IL-33 that promote a pro-remodeling M2-like macrophage activation state and can guide future therapies in regenerative medicine.
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Affiliation(s)
- Madeline Cramer
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Catalina Pineda Molina
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - George Hussey
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Surgery and School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Heth R. Turnquist
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Surgery and School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Immunology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Stephen F. Badylak
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Surgery and School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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16
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Yang Z, Lin S, Feng W, Liu Y, Song Z, Pan G, Zhang Y, Dai X, Ding X, Chen L, Wang Y. A potential therapeutic target in traditional Chinese medicine for ulcerative colitis: Macrophage polarization. Front Pharmacol 2022; 13:999179. [PMID: 36147340 PMCID: PMC9486102 DOI: 10.3389/fphar.2022.999179] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/12/2022] [Indexed: 11/13/2022] Open
Abstract
Intestinal macrophages are the main participants of intestinal immune homeostasis and intestinal inflammation. Under different environmental stimuli, intestinal macrophages can be polarized into classical activated pro-inflammatory phenotype (M1) and alternative activated anti-inflammatory phenotype (M2). Its different polarization state is the “guide” to promoting the development and regression of inflammation. Under normal circumstances, intestinal macrophages can protect the intestine from inflammatory damage. However, under the influence of some genetic and environmental factors, the polarization imbalance of intestinal M1/M2 macrophages will lead to the imbalance in the regulation of intestinal inflammation and transform the physiological inflammatory response into pathological intestinal injury. In UC patients, the disorder of intestinal inflammation is closely related to the imbalance of intestinal M1/M2 macrophage polarization. Therefore, restoring the balance of M1/M2 macrophage polarization may be a potentially valuable therapeutic strategy for UC. Evidence has shown that traditional Chinese medicine (TCM) has positive therapeutic effects on UC by restoring the balance of M1/M2 macrophage polarization. This review summarizes the clinical evidence of TCM for UC, the vital role of macrophage polarization in the pathophysiology of UC, and the potential mechanism of TCM regulating macrophage polarization in the treatment of UC. We hope this review may provide some new enlightenment for the clinical treatment, fundamental research, and research and development of new Chinese medicine of UC.
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Affiliation(s)
- Zhihua Yang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shanshan Lin
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wanying Feng
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yangxi Liu
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhihui Song
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Guiyun Pan
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuhang Zhang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiangdong Dai
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinya Ding
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lu Chen
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Lu Chen, ; Yi Wang,
| | - Yi Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Lu Chen, ; Yi Wang,
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17
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Kumar P, Yang Z, Lever JM, Chávez MD, Fatima H, Crossman DK, Maynard CL, George JF, Mitchell T. Hydroxyproline stimulates inflammation and reprograms macrophage signaling in a rat kidney stone model. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166442. [PMID: 35562038 PMCID: PMC10101222 DOI: 10.1016/j.bbadis.2022.166442] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 11/17/2022]
Abstract
Meals rich in oxalate are associated with calcium oxalate (CaOx) kidney stone disease. Hydroxy-L-proline (HLP) is an oxalate precursor found in milk and collagen-containing foods. HLP has been shown to induce CaOx crystal formation in rodents. The purpose of this study was to evaluate the effect of HLP induced oxalate levels on inflammation and renal leukocytes during crystal formation. Male Sprague-Dawley rats (6-8 weeks old) were fed a control diet containing no oxalate for 3 days before being randomized to continue the control diet or 5% HLP for up to 28 days. Blood, 24 h urine, and kidneys were collected on Days 0, 7, 14, or 28. Urinary oxalate levels, crystal deposition, and renal macrophage markers were evaluated using ion chromatography-mass spectrometry, immunohistochemistry, and qRT-PCR. Renal leukocytes were assessed using flow cytometry and RNA-sequencing. HLP feeding increased urinary oxalate levels and renal crystal formation in animals within 7 days. HLP also increased renal macrophage populations on Days 14 and 28. Transcriptome analysis revealed that renal macrophages from animals fed HLP for 7 days were involved in inflammatory response and disease, stress response to LPS, oxidative stress, and immune cell trafficking. Renal macrophages isolated on Day 14 were involved in cell-mediated immunological pathways, ion homeostasis, and inflammatory response. Collectively, these findings suggest that HLP-mediated oxalate levels induce markers of inflammation, leukocyte populations, and reprograms signaling pathways in macrophages in a time-dependent manner. Additional studies investigating the significance of oxalate on renal macrophages could aid in our understanding of kidney stone formation.
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Affiliation(s)
- Parveen Kumar
- Department of Urology, University of Alabama Birmingham, Birmingham, AL, USA
| | - Zhengqin Yang
- Department of Nephrology, University of Alabama Birmingham, Birmingham, AL, USA
| | - Jeremie M Lever
- Department of Nephrology, University of Alabama Birmingham, Birmingham, AL, USA
| | - Miranda D Chávez
- Department of Urology, University of Alabama Birmingham, Birmingham, AL, USA
| | - Huma Fatima
- Department of Pathology, University of Alabama Birmingham, Birmingham, AL, USA
| | - David K Crossman
- Department of Medicine, University of Alabama Birmingham, Birmingham, AL, USA
| | - Craig L Maynard
- Department of Pathology, University of Alabama Birmingham, Birmingham, AL, USA
| | - James F George
- Department of Nephrology, University of Alabama Birmingham, Birmingham, AL, USA
| | - Tanecia Mitchell
- Department of Urology, University of Alabama Birmingham, Birmingham, AL, USA.
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18
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Sarraf TR, Sen M. Wnt5A signaling supports antigen processing and CD8 T cell activation. Front Immunol 2022; 13:960060. [PMID: 36091060 PMCID: PMC9459031 DOI: 10.3389/fimmu.2022.960060] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Antigen processing and antigen-specific CD8 T cell activation form part and parcel of cell-mediated immunity to infections. Yet, several lacunae remain in our understanding of how antigen processing and CD8 T cell response are coordinated. In this study, using mouse bone marrow-derived dendritic cells (BMDC) as antigen-presenting cells and Ovalbumin (OVA)/DQ-Ovalbumin (DQ-OVA) as model antigen we demonstrated that Wnt5A signaling in BMDC supports antigen processing/presentation and concomitant CD8 T cell activation through regulation of actin and proteasome dynamics. Recombinant Wnt5A conditioning of BMDC and associated actin assembly facilitated DQ-OVA processing, which was inhibited by the proteasome inhibitor MG132. Moreover, Wnt5A depletion led to a significant reduction in OVA processing and presentation. Impaired DQ-OVA processing in Wnt5A depleted BMDC correlated with altered dynamics of both actin and the proteasome regulator PA28α-PA28β, and reduced association of DQ-OVA with actin and proteasome subunits. Inhibited OVA processing/presentation in the Wnt5A depleted BMDC also resulted in subdued activation of OVA-sensitized CD8 T cells in co-culture with the BMDC. In concurrence with these findings, we demonstrated reduced OVA processing and impaired CD8 T cell response to OVA immunization in Wnt5A heterozygous mice lacking a copy of the Wnt5A gene in comparison to the wild-type cohorts. Taken together, our results reveal a crucial requirement of Wnt5A signaling in antigen processing/presentation and CD8 T cell activation, thus unveiling a vital regulatory node of cell-mediated immunity, unidentified thus far.
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19
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Tlili M, Acevedo H, Descoteaux A, Germain M, Heinonen KM. Cell-intrinsic Wnt4 ligand regulates mitochondrial oxidative phosphorylation in macrophages. J Biol Chem 2022; 298:102193. [PMID: 35764169 PMCID: PMC9352913 DOI: 10.1016/j.jbc.2022.102193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 11/26/2022] Open
Abstract
Macrophages respond to their environment by adopting a predominantly inflammatory or anti-inflammatory profile, depending on the context. The polarization of the subsequent response is regulated by a combination of intrinsic and extrinsic signals and is associated with alterations in macrophage metabolism. Although macrophages are important producers of Wnt ligands, the role of Wnt signaling in regulating metabolic changes associated with macrophage polarization remains unclear. Wnt4 upregulation has been shown to be associated with tissue repair and suppression of age-associated inflammation, which led us to generate Wnt4-deficient bone marrow–derived macrophages to investigate its role in metabolism. We show that loss of Wnt4 led to modified mitochondrial structure, enhanced oxidative phosphorylation, and depleted intracellular lipid reserves, as the cells depended on fatty acid oxidation to fuel their mitochondria. Further we found that enhanced lipolysis was dependent on protein kinase C–mediated activation of lysosomal acid lipase in Wnt4-deficient bone marrow–derived macrophages. Although not irreversible, these metabolic changes promoted parasite survival during infection with Leishmania donovani. In conclusion, our results indicate that enhanced macrophage fatty acid oxidation impairs the control of intracellular pathogens, such as Leishmania. We further suggest that Wnt4 may represent a potential target in atherosclerosis, which is characterized by lipid storage in macrophages leading to them becoming foam cells.
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Affiliation(s)
- Mouna Tlili
- Institut national de recherche scientifique, Centre Armand Frappier Santé Biotechnologie, Laval H7V 1B7, CANADA
| | - Hamlet Acevedo
- Institut national de recherche scientifique, Centre Armand Frappier Santé Biotechnologie, Laval H7V 1B7, CANADA
| | - Albert Descoteaux
- Institut national de recherche scientifique, Centre Armand Frappier Santé Biotechnologie, Laval H7V 1B7, CANADA
| | - Marc Germain
- Groupe de Recherche en Signalisation Cellulaire and Département de Biologie Médicale, Université du Québec à Trois-Rivières, Trois-Rivières, CANADA; Centre d'Excellence de Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Montreal, CANADA; Réseau Intersectoriel de Recherche en Santé de l'Université du Québec, Université du Québec, Quebec, CANADA
| | - Krista M Heinonen
- Institut national de recherche scientifique, Centre Armand Frappier Santé Biotechnologie, Laval H7V 1B7, CANADA; Centre d'Excellence de Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Montreal, CANADA.
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20
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IFNγ-Treated Macrophages Induce EMT through the WNT Pathway: Relevance in Crohn’s Disease. Biomedicines 2022; 10:biomedicines10051093. [PMID: 35625832 PMCID: PMC9139093 DOI: 10.3390/biomedicines10051093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/29/2022] [Accepted: 05/05/2022] [Indexed: 01/25/2023] Open
Abstract
Background: Fibrosis is a common complication of Crohn’s disease (CD) in which macrophages play a central role. Epithelial-mesenchymal transition (EMT) and the WNT pathway have been associated with fibrosis. We aim to analyse the relevance of the tissue microenvironment in macrophage phenotype and the EMT process. Methods: Intestinal surgical resections are obtained from control and CD patients with stenotic or penetrating behaviour. Cytokine’s expression, macrophage phenotype, EMT markers and WNT signalling pathway are determined by WB, RT-PCR, ELISA or Cytometry. U937 cells are treated with IFNγ, TNFα, IL1β, IL4 or IL10 and co-cultured with HT29 cells and, in some cases, are treated with XAV939 or miFZD4. The expression of macrophage, EMT and WNT pathway markers in U937 or HT29 cells is analysed by WB or RT-PCR. Results: IFNγ, WNT6, CD16 and CD86 are increased in the intestinal tissue of CD patients. IFNγ-treated U937 activated the EMT process and WNT pathway in HT29 cells, and the EMT process is mediated by FZD4. Conclusions: An IFNγ-rich microenvironment polarises macrophages, which induces EMT through the WNT pathway.
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21
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Sim SL, Blumenthal A, Kaur S, Khosrotehrani K. Myeloid Wls expression is dispensable for skin wound healing and blood vessel regeneration. Front Endocrinol (Lausanne) 2022; 13:957833. [PMID: 36082070 PMCID: PMC9446346 DOI: 10.3389/fendo.2022.957833] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/28/2022] [Indexed: 11/13/2022] Open
Abstract
Wnt signaling controls blood vessel growth, regression and patterning during embryonic and postnatal life. Macrophages are major producers of Wnt ligands and angiogenic growth factors. It regulates vascular development and specification during embryogenesis and wound healing. Macrophage dysregulation in wound healing impairs vessel regeneration and delay wound closure. During cutaneous wound healing, the endovascular progenitors (EVPs) proliferate and differentiate into mature endothelial (D) cells in response to signals produced by perivascular cells, including macrophages, governing blood vessels regeneration. However, the role of macrophage's Wnt production on endothelial cells, especially the EVPs during wound healing is currently unknown. Here we used a cutaneous excisional wound model in mice with conditional deletion of Wnt secretion by myeloid cells (Wlsfl/flLysM-Cre+ ) to assess the kinetics of endothelial subpopulations (including EVP), myeloid infiltration, collagen deposition and wound closure. Deletion of Wls expression by myeloid cells did not affect wound closure and collagen deposition, indicating that myeloid Wls expression does not promote wound healing and regeneration. Myeloid-specific Wls deletion elevated the EVP population during the peak of angiogenesis, yet without affecting blood vessel density. Wounds in Wlsfl/flLysM-Cre+ animals showed unperturbed myeloid infiltration and differentiation. Overall, our data indicate that macrophage Wnt production shapes EVP kinetics without major relevance to wound healing. These findings extend the knowledge of macrophage and endothelial molecular crosstalk and position myeloid-derived Wnt production as a regulator of endovascular progenitor.
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Affiliation(s)
- Seen Ling Sim
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, QLD, Australia
| | - Antje Blumenthal
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, QLD, Australia
| | - Simranpreet Kaur
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, QLD, Australia
- Mater Research Institute – The University of Queensland, Translational Research Institute, Brisbane, QLD, Australia
| | - Kiarash Khosrotehrani
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, QLD, Australia
- *Correspondence: Kiarash Khosrotehrani,
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22
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Bekere I, Huang J, Schnapp M, Rudolph M, Berneking L, Ruckdeschel K, Grundhoff A, Günther T, Fischer N, Aepfelbacher M. Yersinia remodels epigenetic histone modifications in human macrophages. PLoS Pathog 2021; 17:e1010074. [PMID: 34793580 PMCID: PMC8639070 DOI: 10.1371/journal.ppat.1010074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 12/02/2021] [Accepted: 10/28/2021] [Indexed: 01/10/2023] Open
Abstract
Various pathogens systematically reprogram gene expression in macrophages, but the underlying mechanisms are largely unknown. We investigated whether the enteropathogen Yersinia enterocolitica alters chromatin states to reprogram gene expression in primary human macrophages. Genome-wide chromatin immunoprecipitation (ChIP) seq analyses showed that pathogen-associated molecular patterns (PAMPs) induced up- or down-regulation of histone modifications (HMod) at approximately 14500 loci in promoters and enhancers. Effectors of Y. enterocolitica reorganized about half of these dynamic HMod, with the effector YopP being responsible for about half of these modulatory activities. The reorganized HMod were associated with genes involved in immune response and metabolism. Remarkably, the altered HMod also associated with 61% of all 534 known Rho GTPase pathway genes, revealing a new level in Rho GTPase regulation and a new aspect of bacterial pathogenicity. Changes in HMod were associated to varying degrees with corresponding gene expression, e. g. depending on chromatin localization and cooperation of the HMod. In summary, infection with Y. enterocolitica remodels HMod in human macrophages to modulate key gene expression programs of the innate immune response. Human pathogenic bacteria can affect epigenetic histone modifications to modulate gene expression in host cells. However, a systems biology analysis of this bacterial virulence mechanism in immune cells has not been performed. Here we analyzed genome-wide epigenetic histone modifications and associated gene expression changes in primary human macrophages infected with enteropathogenic Yersinia enterocolitica. We demonstrate that Yersinia virulence factors extensively modulate histone modifications and associated gene expression triggered by the pathogen-associated molecular patterns (PAMPs) of the bacteria. The epigenetically modulated genes are involved in several key pathways of the macrophage immune response, including the Rho GTPase pathway, revealing a novel level of Rho GTPase regulation by a bacterial pathogen. Overall, our findings provide an in-depth view of epigenetic and gene expression changes during host-pathogen interaction and might have further implications for understanding of the innate immune memory in macrophages.
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Affiliation(s)
- Indra Bekere
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
- * E-mail: (IB); (MA)
| | - Jiabin Huang
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Marie Schnapp
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Maren Rudolph
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Laura Berneking
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Klaus Ruckdeschel
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Adam Grundhoff
- Heinrich-Pette-Institute (HPI), Leibniz Institute for Experimental Virology, Research Group Virus Genomics, Hamburg, Germany
| | - Thomas Günther
- Heinrich-Pette-Institute (HPI), Leibniz Institute for Experimental Virology, Research Group Virus Genomics, Hamburg, Germany
| | - Nicole Fischer
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Martin Aepfelbacher
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
- * E-mail: (IB); (MA)
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23
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Cai X, Tao W, Li L. Glioma cell-derived FGF20 suppresses macrophage function by activating β-catenin. Cell Signal 2021; 89:110181. [PMID: 34757019 DOI: 10.1016/j.cellsig.2021.110181] [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: 07/03/2021] [Revised: 10/23/2021] [Accepted: 10/26/2021] [Indexed: 01/19/2023]
Abstract
Macrophages, which are the main regulators of the tumor-associated microenvironment, play a crucial role in the progression of various tumors. The anti-inflammatory role of β-catenin in macrophages has been extensively studied in recent years. However, the association between macrophages and β-catenin with regards to the development of glioma has not yet been investigated, at least to the best of our knowledge. The present study found that fibroblast growth factor 20 (FGF20), as a paracrine cytokine, was secreted by glioma cells and acted on macrophages. FGF20 treated macrophages exhibited a decreased pro-inflammatory phenotype upon LPS and IFN-γ stimulation, characterized by the decreased the level of M1 macrophage markers and the reduced production of pro-inflammatory cytokines. Mechanistic analysis revealed that FGF20 interacted with FGF receptor 1 isoform of macrophages, and subsequently increased the stability of β-catenin via phosphorylating GSK3β, which suppressed macrophage polarization to the M1-phenotype. Finally, it was found that FGF20 of glioma cells expression was upregulated by the glucocorticoids (GCs) treatment, and decreased FGF20 expression of glioma cells markedly blocked the effects of GCs on the polarization of macrophages. On the whole, the present study demonstrates that FGF20, secreted from glioma cells, participates the GCs regulated macrophage function and exerts anti-inflammatory effects during the treatment of glioma by GCs. Moreover, a molecular link was identified between glioma cells and macrophages, demonstrating that FGF20 modulates the GCs-induced dysfunction of macrophages during glioma development.
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Affiliation(s)
- Xue Cai
- Department of Emergency, ShengJing Hospital of China Medical University, Shenyang, Liaoning Province 110004, China.
| | - Weichen Tao
- Department of Emergency, ShengJing Hospital of China Medical University, Shenyang, Liaoning Province 110004, China
| | - Lei Li
- Department of Emergency, ShengJing Hospital of China Medical University, Shenyang, Liaoning Province 110004, China.
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24
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Wei Z, Yang M, Feng M, Wu Z, Rosin-Arbesfeld R, Dong J, Zhu D. Inhibition of BCL9 Modulates the Cellular Landscape of Tumor-Associated Macrophages in the Tumor Immune Microenvironment of Colorectal Cancer. Front Pharmacol 2021; 12:713331. [PMID: 34566638 PMCID: PMC8461101 DOI: 10.3389/fphar.2021.713331] [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: 05/22/2021] [Accepted: 08/20/2021] [Indexed: 01/01/2023] Open
Abstract
Tumor-associated macrophages (TAMs) are an indispensable part of the tumor microenvironment (TME), and they likely play a negative rather than positive role in cancer treatment. However, the cellular landscape and transcriptional profile regulation of TAMs in the case of tumor gene inactivation or chemical interference remains unclear. The B-cell lymphoma 9/B-cell lymphoma 9-like (BCL9/BCL9L) is a critical transcription co-factor of β-catenin. Suppression of Bcl9 inhibits tumor growth in mouse models of colorectal cancer (CRC). Here, we studied the TAMs of CRC by single-cell sequencing. Bcl9 depletion caused macrophage polarization inhibition from M0 to M2 and changed the CRC TME, which further interferes with the inflammation of M0 and M1. The transcription factor regulating these processes may be related to the Wnt signaling pathway from multiple levels. Furthermore, we also found that the cells delineated from monocyte to NK-like non-functioning cells were significantly different in the BCL9-deprived population. Combining these data, we proposed a TAM-to-NK score to evaluate the dynamic balance in TME of monocyte/TAM cells and NK-like non-functioning cells in The Cancer Genome Atlas (TCGA) clinical samples to verify the clinical significance. We demonstrated that the cell type balance and transcription differences of TAMs regulated by BCL9-driven Wnt signaling affected immune surveillance and inflammation of cancer, ultimately affecting patients' prognosis. We thereby highlighted the potential of targeting Wnt signaling pathway through cancer immunotherapy.
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Affiliation(s)
- Zhuang Wei
- Department of Pharmacology, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Key Laboratory of Systems Biology, Innovation Center for Cell Signaling Network, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Mengxuan Yang
- Minhang Branch, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Mei Feng
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Zhongen Wu
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Rina Rosin-Arbesfeld
- Department of Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jibin Dong
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Di Zhu
- Department of Pharmacology, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Key Laboratory of Smart Drug Delivery, State Key Laboratory of Molecular Engineering of Polymers, School of Pharmacy, Ministry of Education, Fudan University, Shanghai, China.,Shanghai Engineering Research Center of ImmunoTherapeutics, Fudan University, Shanghai, China
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25
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Ahuja S, Lazar IM. Systems-Level Proteomics Evaluation of Microglia Response to Tumor-Supportive Anti-Inflammatory Cytokines. Front Immunol 2021; 12:646043. [PMID: 34566949 PMCID: PMC8458581 DOI: 10.3389/fimmu.2021.646043] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 08/06/2021] [Indexed: 12/24/2022] Open
Abstract
Background Microglia safeguard the CNS against injuries and pathogens, and in the presence of certain harmful stimuli are capable of inducing a disease-dependent inflammatory response. When exposed to anti-inflammatory cytokines, however, these cells possess the ability to switch from an inflammatory to an immunosuppressive phenotype. Cancer cells exploit this property to evade the immune system, and elicit an anti-inflammatory microenvironment that facilitates tumor attachment and growth. Objective The tumor-supportive biological processes that are activated in microglia cells in response to anti-inflammatory cytokines released from cancer cells were explored with mass spectrometry and proteomic technologies. Methods Serum-depleted and non-depleted human microglia cells (HMC3) were treated with a cocktail of IL-4, IL-13, IL-10, TGFβ, and CCL2. The cellular protein extracts were analyzed by LC-MS/MS. Using functional annotation clustering tools, statistically significant proteins that displayed a change in abundance between cytokine-treated and non-treated cells were mapped to their biological networks and pathways. Results The proteomic analysis of HMC3 cells enabled the identification of ~10,000 proteins. Stimulation with anti-inflammatory cytokines resulted in the activation of distinct, yet integrated clusters of proteins that trigger downstream a number of tumor-promoting biological processes. The observed changes could be classified into four major categories, i.e., mitochondrial gene expression, ECM remodeling, immune response, and impaired cell cycle progression. Intracellular immune activation was mediated mainly by the transducers of MAPK, STAT, TGFβ, NFKB, and integrin signaling pathways. Abundant collagen formation along with the expression of additional receptors, matrix components, growth factors, proteases and protease inhibitors, was indicative of ECM remodeling processes supportive of cell-cell and cell-matrix adhesion. Overexpression of integrins and their modulators was reflective of signaling processes that link ECM reorganization with cytoskeletal re-arrangements supportive of cell migration. Antigen processing/presentation was represented by HLA class I histocompatibility antigens, and correlated with upregulated proteasomal subunits, vesicular/viral transport, and secretory processes. Immunosuppressive and proangiogenic chemokines, as well as anti-angiogenic factors, were detectable in low abundance. Pronounced pro-inflammatory, chemotactic or phagocytic trends were not observed, however, the expression of certain receptors, signaling and ECM proteins indicated the presence of such capabilities. Conclusions Comprehensive proteomic profiling of HMC3 cells stimulated with anti-inflammatory cytokines revealed a spectrum of microglia phenotypes supportive of cancer development in the brain via microenvironment-dependent biological mechanisms.
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Affiliation(s)
- Shreya Ahuja
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Iulia M. Lazar
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, United States
- Fralin Life Sciences Institute, Virginia Tech, Blacksburg, VA, United States
- Carilion School of Medicine, Virginia Tech, Blacksburg, VA, United States
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26
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Simakou T, Freeburn R, Henriquez FL. Gene expression during THP-1 differentiation is influenced by vitamin D3 and not vibrational mechanostimulation. PeerJ 2021; 9:e11773. [PMID: 34316406 PMCID: PMC8286059 DOI: 10.7717/peerj.11773] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/23/2021] [Indexed: 11/20/2022] Open
Abstract
Background In injury or infection, monocytes migrate into the affected tissues from circulation and differentiate into macrophages which are subsequently involved in the inflammatory responses. Macrophage differentiation and activation have been studied in response to multiple chemokines and cytokines. However, mechanical, and physical stimuli can also influence macrophage differentiation, activation, cytokine production, and phagocytic activity. Methods In this study the macrophage differentiation from THP-1 monocytes was assessed upon the stimulation with 1,25-dihydroxyvitamin D3 and 1,000 Hz vibrations, using qPCR for quantification of transcript expression. Vitamin D binds the vitamin D receptor (VDR) and subsequently modulates the expression of a variety of genes in monocytes. The effects of the 1,000 Hz vibrational stimulation, and the combined treatment of vitamin D3 and 1000 Hz vibrations were unknown. The differentiation of macrophages was assessed by looking at transcription of macrophage markers (e.g., CD14, CD36), antigen presenting molecules (e.g., HLA-DRA), transcription factors (e.g., LEF-1, TCF7L2), and mechanosensors (e.g., PIEZO1 and PKD2). Results The results showed that vitamin D3 induced THP-1 macrophage differentiation, which was characterized by upregulation of CD14 and CD36, downregulation of HLA-DRA, upregulation of the PKD2 (TRPP2), and an inverse relationship between TCF7L2 and LEF-1, which were upregulated and downregulated respectively. The 1,000 Hz vibrations were sensed from the cells which upregulated PIEZO1 and TCF3, but they did not induce expression of genes that would indicate macrophage differentiation. The mRNA transcription profile in the cells stimulated with the combined treatment was comparable to that of the cells stimulated by the vitamin only. The 1,000 Hz vibrations slightly weakened the effect of the vitamin for the regulation of CD36 and HLA-DMB in the suspension cells, but without causing changes in the regulation patterns. The only exception was the upregulation of TCF3 in the suspension cells, which was influenced by the vibrations. In the adherent cells, the vitamin D3 cancelled the upregulating effect of the 1,000 Hz vibrations and downregulated TCF3. The vitamin also cancelled the upregulation of PIEZO1 gene by the 1,000 Hz vibrations in the combined treatment. Conclusion The mechanical stimulation with 1,000 Hz vibrations resulted in upregulation of PIEZO1 in THP-1 cells, but it did not affect the differentiation process which was investigated in this study. Vitamin D3 induced THP-1 macrophage differentiation and could potentially influence M2 polarization as observed by upregulation of CD36 and downregulation of HLA-DRA. In addition, in THP-1 cells undergoing the combined stimulation, the gene expression patterns were influenced by vitamin D3, which also ablated the effect of the mechanical stimulus on PIEZO1 upregulation.
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Affiliation(s)
- Theodoros Simakou
- School of Health and Life Sciences, University of West of Scotland, Paisley, United Kingdom.,Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Robin Freeburn
- School of Health and Life Sciences, University of West of Scotland, Paisley, United Kingdom
| | - Fiona L Henriquez
- School of Health and Life Sciences, University of West of Scotland, Paisley, United Kingdom
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27
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Gong Q, Jiang Y, Pan X, You Y. Fractalkine aggravates LPS-induced macrophage activation and acute kidney injury via Wnt/β-catenin signalling pathway. J Cell Mol Med 2021; 25:6963-6975. [PMID: 34101346 PMCID: PMC8278080 DOI: 10.1111/jcmm.16707] [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: 03/29/2021] [Revised: 05/14/2021] [Accepted: 05/22/2021] [Indexed: 12/20/2022] Open
Abstract
Fractalkine (CX3CL1, FKN), a CX3C gene sequence inflammatory chemokine, has been found to have pro-inflammatory and pro-adhesion effects. Macrophages are immune cells with a critical role in regulating the inflammatory response. The imbalance of M1/M2 macrophage polarization can lead to aggravated inflammation. This study attempts to investigate the mechanisms through which FKN regulates macrophage activation and the acute kidney injury (AKI) involved in inflammatory response induced by lipopolysaccharide (LPS) by using FKN knockout (FKN-KO) mice and cultured macrophages. It was found that FKN and Wnt/β-catenin signalling have a positive interaction in macrophages. FKN overexpression inhibited LPS-induced macrophage apoptosis. However, it enhanced their cell viability and transformed them into the M2 type. The effects of FKN overexpression were accelerated by activation of Wnt/β-catenin signalling. In the in vivo experiments, FKN deficiency suppressed macrophage activation and reduced AKI induced by LPS. Inhibition of Wnt/β-catenin signalling and FKN deficiency further mitigated the pathologic process of AKI. In summary, we provide a novel mechanism underlying activation of macrophages in LPS-induced AKI. Although LPS-induced murine AKI was unable to completely recapitulate human AKI, the positive interactions between FKN and Wnt/β-catenin signalling pathway may be a therapeutic target in the treatment of kidney injury.
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Affiliation(s)
- Qiming Gong
- Department of Nephrology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yan Jiang
- Science laboratory, Youjiang Medical University for Nationalities, Baise, China
| | - Xiuhong Pan
- Department of Nephrology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yanwu You
- Department of Nephrology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
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28
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Longo V, Longo A, Adamo G, Fiannaca A, Picciotto S, La Paglia L, Romancino D, La Rosa M, Urso A, Cibella F, Bongiovanni A, Colombo P. 2,2'4,4'-Tetrabromodiphenyl Ether (PBDE-47) Modulates the Intracellular miRNA Profile, sEV Biogenesis and Their miRNA Cargo Exacerbating the LPS-Induced Pro-Inflammatory Response in THP-1 Macrophages. Front Immunol 2021; 12:664534. [PMID: 34025666 PMCID: PMC8138315 DOI: 10.3389/fimmu.2021.664534] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/22/2021] [Indexed: 12/30/2022] Open
Abstract
The 2,2’4,4’-tetrabromodiphenyl ether (PBDE-47) is one of the most prominent PBDE congeners detected in the environment and in animal and human tissues. Animal model experiments suggested the occurrence of PBDE-induced immunotoxicity leading to different outcomes and recently we demonstrated that this substance can impair macrophage and basophil activities. In this manuscript, we decided to further examine the effects induced by PBDE-47 treatment on innate immune response by looking at the intracellular expression profile of miRNAs as well as the biogenesis, cargo content and activity of human M(LPS) macrophage cell-derived small extracellular vesicles (sEVs). Microarray and in silico analysis demonstrated that PBDE-47 can induce some epigenetic effects in M(LPS) THP-1 cells modulating the expression of a set of intracellular miRNAs involved in biological pathways regulating the expression of estrogen-mediated signaling and immune responses with particular reference to M1/M2 differentiation. In addition to the cell-intrinsic modulation of intracellular miRNAs, we demonstrated that PBDE-47 could also interfere with the biogenesis of sEVs increasing their number and selecting a de novo population of sEVs. Moreover, PBDE-47 induced the overload of specific immune related miRNAs in PBDE-47 derived sEVs. Finally, culture experiments with naïve M(LPS) macrophages demonstrated that purified PBDE-47 derived sEVs can modulate macrophage immune response exacerbating the LPS-induced pro-inflammatory response inducing the overexpression of the IL-6 and the MMP9 genes. Data from this study demonstrated that PBDE-47 can perturb the innate immune response at different levels modulating the intracellular expression of miRNAs but also interfering with the biogenesis, cargo content and functional activity of M(LPS) macrophage cell-derived sEVs.
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Affiliation(s)
- Valeria Longo
- Institute for Biomedical Research and Innovation, National Research Council of Italy (IRIB-CNR), Palermo, Italy
| | - Alessandra Longo
- Institute for Biomedical Research and Innovation, National Research Council of Italy (IRIB-CNR), Palermo, Italy
| | - Giorgia Adamo
- Institute for Biomedical Research and Innovation, National Research Council of Italy (IRIB-CNR), Palermo, Italy
| | - Antonino Fiannaca
- High Performance Computing and Networking Institute, National Research Council of Italy (ICAR-CNR), Palermo, Italy
| | - Sabrina Picciotto
- Institute for Biomedical Research and Innovation, National Research Council of Italy (IRIB-CNR), Palermo, Italy
| | - Laura La Paglia
- High Performance Computing and Networking Institute, National Research Council of Italy (ICAR-CNR), Palermo, Italy
| | - Daniele Romancino
- Institute for Biomedical Research and Innovation, National Research Council of Italy (IRIB-CNR), Palermo, Italy
| | - Massimo La Rosa
- High Performance Computing and Networking Institute, National Research Council of Italy (ICAR-CNR), Palermo, Italy
| | - Alfonso Urso
- High Performance Computing and Networking Institute, National Research Council of Italy (ICAR-CNR), Palermo, Italy
| | - Fabio Cibella
- Institute for Biomedical Research and Innovation, National Research Council of Italy (IRIB-CNR), Palermo, Italy
| | - Antonella Bongiovanni
- Institute for Biomedical Research and Innovation, National Research Council of Italy (IRIB-CNR), Palermo, Italy
| | - Paolo Colombo
- Institute for Biomedical Research and Innovation, National Research Council of Italy (IRIB-CNR), Palermo, Italy
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29
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Siman-Tov R, Zelikson N, Caspi M, Levi Y, Perry C, Khair F, Stauber H, Sznitman J, Rosin-Arbesfeld R. Circulating Wnt Ligands Activate the Wnt Signaling Pathway in Mature Erythrocytes. Arterioscler Thromb Vasc Biol 2021; 41:e243-e264. [PMID: 33626913 DOI: 10.1161/atvbaha.120.315413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Ronen Siman-Tov
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Israel (R.S.-T., N.Z., M.C., Y.L., C.P., F.K., R.R.-A.)
| | - Natalie Zelikson
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Israel (R.S.-T., N.Z., M.C., Y.L., C.P., F.K., R.R.-A.)
| | - Michal Caspi
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Israel (R.S.-T., N.Z., M.C., Y.L., C.P., F.K., R.R.-A.)
| | - Yakir Levi
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Israel (R.S.-T., N.Z., M.C., Y.L., C.P., F.K., R.R.-A.)
| | - Chava Perry
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Israel (R.S.-T., N.Z., M.C., Y.L., C.P., F.K., R.R.-A.)
- BMT Unit, Institute of Hematology, Tel-Aviv Sourasky Medical Center, Israel (C.P.)
| | - Fayhaa Khair
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Israel (R.S.-T., N.Z., M.C., Y.L., C.P., F.K., R.R.-A.)
| | - Hagit Stauber
- Department of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa (H.S., J.S.)
| | - Josué Sznitman
- Department of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa (H.S., J.S.)
| | - Rina Rosin-Arbesfeld
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Israel (R.S.-T., N.Z., M.C., Y.L., C.P., F.K., R.R.-A.)
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30
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Weerackoon N, Gunawardhana KL, Mani A. Wnt Signaling Cascades and Their Role in Coronary Artery Health and Disease. JOURNAL OF CELLULAR SIGNALING 2021; 2:52-62. [PMID: 33969358 PMCID: PMC8098721 DOI: 10.33696/signaling.2.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The Wnt signaling is classified as two distinct pathways of canonical Wnt/β-catenin signaling, and the non-canonical pathways of planar cell polarity and Wnt/Ca2+ pathways. However, the scientific discoveries in recent years have shown that canonical and non-canonical Wnts pathways are intertwined and have complex interaction with other major signaling pathways such as hedgehog, Hippo and TOR signaling. Wnt signaling plays important roles in cell proliferation, differentiation and migration during embryonic development. The impairment of these pathways during embryonic development often leads to major congenital defects. In adult organisms Wnt expression is more restricted to proliferating tissues, where it plays a key role in tissue regeneration. In addition, the disruption of homeostatic processes of multicellular organisms may give rise to reactivation and/or altered activation of Wnt signaling, leading to development of malignant tumors and chronic diseases such as type-2 diabetes and adult cardiovascular diseases. Coronary artery disease (CAD) is the leading cause of death in the world. The disease is the consequences of two distinct disease processes: Atherosclerosis, a primarily inflammatory disease and plaque erosion, a disease process associated with endothelial cell defect and smooth muscle proliferation with only modest contribution of inflammatory cells. The atherosclerosis is itself a multifactorial disease that is initiated by lipid deposition and endothelial dysfunction, triggering vascular inflammation via recruitment and aggregation of monocytes and their transformation to foam cell by the uptake of modified low-density lipoprotein (LDL), culminating in an atheromatous plaque core formation. Further accumulation of lipids, infiltration and proliferation of vascular smooth muscle cells (VSMCs) and extracellular matrix deposition result in intimal hyperplasia. Myocardial infarction is the ultimate consequence of these processes and is caused by plaque rupture and hypercoagulation. In vivo studies have established the role of the Wnt pathway in all phases of atherosclerosis development, though much remains unknown or controversial. Less is known about the mechanisms that induce plaque erosion. The limited evidence in mouse models of Wnt coreceptor LRP6 mutation and heterozygous TCF7L2 knock out mice implicate altered Wnt signaling also in the pathogenesis of plaque erosion. In this article we focus and review the role of the Wnt pathway in CAD pathophysiology from clinical and experimental standpoints.
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Affiliation(s)
- Nadisha Weerackoon
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Kushan L Gunawardhana
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA.,Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Arya Mani
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA.,Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
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31
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Ang AD, Vissers MCM, Burgess ER, Currie MJ, Dachs GU. Gene and Protein Expression Is Altered by Ascorbate Availability in Murine Macrophages Cultured under Tumour-Like Conditions. Antioxidants (Basel) 2021; 10:antiox10030430. [PMID: 33799728 PMCID: PMC7998289 DOI: 10.3390/antiox10030430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/22/2021] [Accepted: 03/09/2021] [Indexed: 01/01/2023] Open
Abstract
Tumour-associated macrophages (TAMs) are ubiquitously present in tumours and commonly associated with poor prognosis. In immune cells, ascorbate affects epigenetic regulation, differentiation and phenotype via its co-factor activity for the 2-oxoglutarate dependent dioxygenase enzymes. Here, we determined the effect of ascorbate on TAM development in response to tumour microenvironmental cues. Naïve murine bone marrow monocytes were cultured with Lewis Lung Carcinoma conditioned media (LLCM) or macrophage colony-stimulating factor (MCSF) to encourage the development into tumour-associated macrophages. Cells were stimulated with hypoxia (1% O2), with or without ascorbate (500 µM) supplementation. Cells and media were harvested for gene, cell surface marker and protein analyses. LLCM supported bone marrow monocyte growth with >90% of cells staining CD11b+F4/80+, indicative of monocytes/macrophages. LLCM-grown cells showed increased expression of M2-like and TAM genes compared to MCSF-grown cells, which further increased with hypoxia. In LLCM-grown cells, ascorbate supplementation was associated with increased F4/80 cell surface expression, and altered gene expression and protein secretion. Our study shows that ascorbate modifies monocyte phenotype when grown under tumour microenvironmental conditions, but this was not clearly associated with either a pro- or anti-tumour phenotype, and reflects a complex and nuanced response of macrophages to ascorbate. Overall, ascorbate supplementation clearly has molecular consequences for TAMs, but functional and clinical consequences remain unknown.
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Affiliation(s)
- Abel D. Ang
- Mackenzie Cancer Research Group, Department of Pathology & Biomedical Science, University of Otago Christchurch, Christchurch 8140, New Zealand; (A.D.A.); (E.R.B.); (M.J.C.)
| | - Margreet C. M. Vissers
- Centre for Free Radical Research, Department of Pathology & Biomedical Science, University of Otago Christchurch, Christchurch 8140, New Zealand;
| | - Eleanor R. Burgess
- Mackenzie Cancer Research Group, Department of Pathology & Biomedical Science, University of Otago Christchurch, Christchurch 8140, New Zealand; (A.D.A.); (E.R.B.); (M.J.C.)
| | - Margaret J. Currie
- Mackenzie Cancer Research Group, Department of Pathology & Biomedical Science, University of Otago Christchurch, Christchurch 8140, New Zealand; (A.D.A.); (E.R.B.); (M.J.C.)
| | - Gabi U. Dachs
- Mackenzie Cancer Research Group, Department of Pathology & Biomedical Science, University of Otago Christchurch, Christchurch 8140, New Zealand; (A.D.A.); (E.R.B.); (M.J.C.)
- Correspondence:
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Abstract
Wnt signaling is an important morphogenetic signaling pathway best known for its essential role in determining embryonic cell fates; it is often activated to re-specify fetal cells or to maintain the lineage flexibility of somatic stem cells. In this review, we consider the role of this pathway in the remarkable process of differentiation, growth and morphogenesis of the mammary gland during embryogenesis, ductal outgrowth and pregnancy. Specifically, mammary stem cells are compared with stem cells from other tissues, to identify commonalities and differences. Wnt signaling is known to be required to maintain the bipotent basal stem cell present in adult mammary ductal trees, however, the absence of this stem cell has little effect on growth or morphogenesis, and Wnt signaling is not induced during the ductal/alveolar expansion during pregnancy. The evidence for pre-determined hierarchies of mammary epithelial cells is reviewed, together with the role of signaling between mixtures of specified mammary epithelial cells in the maintenance of Wnt-dependent clonagenic stem cells. The dazzling variety of Wnt signaling components expressed by mammary epithelial cells is presented, along with some potential stromal sources of Wnt proteins that may be important starting points for the induction of plasticity in the epithelium.
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Affiliation(s)
- Caroline M Alexander
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, United States.
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Procopio MC, Lauro R, Nasso C, Carerj S, Squadrito F, Bitto A, Di Bella G, Micari A, Irrera N, Costa F. Role of Adenosine and Purinergic Receptors in Myocardial Infarction: Focus on Different Signal Transduction Pathways. Biomedicines 2021; 9:biomedicines9020204. [PMID: 33670488 PMCID: PMC7922652 DOI: 10.3390/biomedicines9020204] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 02/15/2021] [Indexed: 12/24/2022] Open
Abstract
Myocardial infarction (MI) is a dramatic event often caused by atherosclerotic plaque erosion or rupture and subsequent thrombotic occlusion of a coronary vessel. The low supply of oxygen and nutrients in the infarcted area may result in cardiomyocytes necrosis, replacement of intact myocardium with non-contractile fibrous tissue and left ventricular (LV) function impairment if blood flow is not quickly restored. In this review, we summarized the possible correlation between adenosine system, purinergic system and Wnt/β-catenin pathway and their role in the pathogenesis of cardiac damage following MI. In this context, several pathways are involved and, in particular, the adenosine receptors system shows different interactions between its members and purinergic receptors: their modulation might be effective not only for a normal functional recovery but also for the treatment of heart diseases, thus avoiding fibrosis, reducing infarcted area and limiting scaring. Similarly, it has been shown that Wnt/β catenin pathway is activated following myocardial injury and its unbalanced activation might promote cardiac fibrosis and, consequently, LV systolic function impairment. In this regard, the therapeutic benefits of Wnt inhibitors use were highlighted, thus demonstrating that Wnt/β-catenin pathway might be considered as a therapeutic target to prevent adverse LV remodeling and heart failure following MI.
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Affiliation(s)
- Maria Cristina Procopio
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Rita Lauro
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Chiara Nasso
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Scipione Carerj
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Alessandra Bitto
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Gianluca Di Bella
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Antonio Micari
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, University of Messina, A.O.U. Policlinic “G. Martino”, 98165 Messina, Italy;
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
- Correspondence: ; Tel.: +39-090-221-3093; Fax: +39-090-221-23-81
| | - Francesco Costa
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
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Zheng M, Weng M, Zhang X, Li R, Tong Q, Chen Z. Beta-tricalcium phosphate promotes osteogenic differentiation of bone marrow-derived mesenchymal stem cells through macrophages. Biomed Mater 2021; 16:025005. [PMID: 33445164 DOI: 10.1088/1748-605x/abdbdc] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Macrophages are vital regulators of skeletal remodeling and osseous repair. Beta-tricalcium phosphate (β-TCP) is a synthetic ceramic biomaterial that has shown promise as bone substitute. However, whether and how β-TCP affects osteogenesis-related responses of macrophages has rarely been studied. The aims of this study were to explore (a) the effects of β-TCP on osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSCs) co-cultured with macrophages and (b) on macrophage polarization as well as macrophage gene and protein expression profiles. BMSC osteogenic differentiation capacity in vitro was enhanced in β-TCP-induced co-cultured BMSCs compared to that in BMSC monocultures. We also found that macrophages induced with 25 mg ml-1 β-TCP extract had more significant immune responses and switched to the M2 phenotype. Expression levels of the Wnt signaling pathway modulators wingless-type MMTV integration site family, member 6 (WNT6) and Wnt inhibitory factor 1 (WIF1) were upregulated and downregulated, respectively, in macrophages treated with β-TCP extract. Our findings suggest that β-TCP enhances osteogenic differentiation of BMSCs by inducing macrophage polarization and by regulating the Wnt signaling pathway, thereby highlighting its therapeutic potential for bone healing through osteoimmunomodulatory properties.
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Affiliation(s)
- Mengting Zheng
- Department of Orthodontics, Shanghai 9th Peoples Hospital Affiliated to Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai, People's Republic of China
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Urbauer E, Rath E, Haller D. Mitochondrial Metabolism in the Intestinal Stem Cell Niche-Sensing and Signaling in Health and Disease. Front Cell Dev Biol 2021; 8:602814. [PMID: 33469536 PMCID: PMC7813778 DOI: 10.3389/fcell.2020.602814] [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: 09/04/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022] Open
Abstract
Mitochondrial metabolism, dynamics, and stress responses in the intestinal stem cell niche play a pivotal role in regulating intestinal epithelial cell homeostasis, including self-renewal and differentiation. In addition, mitochondria are increasingly recognized for their involvement in sensing the metabolic environment and their capability of integrating host and microbial-derived signals. Gastrointestinal diseases such as inflammatory bowel diseases and colorectal cancer are characterized by alterations of intestinal stemness, the microbial milieu, and mitochondrial metabolism. Thus, mitochondrial function emerges at the interface of determining health and disease, and failure to adapt mitochondrial function to environmental cues potentially results in aberrant tissue responses. A mechanistic understanding of the underlying role of mitochondrial fitness in intestinal pathologies is still in its infancy, and therapies targeting mitochondrial (dys)function are currently lacking. This review discusses mitochondrial signaling and metabolism in intestinal stem cells and Paneth cells as critical junction translating host- and microbe-derived signals into epithelial responses. Consequently, we propose mitochondrial fitness as a hallmark for intestinal epithelial cell plasticity, determining the regenerative capacity of the epithelium.
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Affiliation(s)
- Elisabeth Urbauer
- Chair of Nutrition and Immunology, Technische Universität München, Freising-Weihenstephan, Germany
| | - Eva Rath
- Chair of Nutrition and Immunology, Technische Universität München, Freising-Weihenstephan, Germany
| | - Dirk Haller
- Chair of Nutrition and Immunology, Technische Universität München, Freising-Weihenstephan, Germany.,ZIEL Institute for Food & Health, Technische Universität München, Munich, Germany
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36
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Gong Q, Jiang Y, Lu J, You Y. [Fractalkine inhibits lipopolysaccharide-induced M1 polarization of macrophages by activating Wnt/β-catenin signaling pathway]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:1726-1731. [PMID: 33380403 DOI: 10.12122/j.issn.1673-4254.2020.12.05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the mechanism by which fractalkine (CX3CL1; FKN) inhibits lipopolysaccharide (LPS)-induced immunological response in RAW264.7 cells. METHODS A RAW264.7 cell model overexpressing FKN was established by transfection with the lentiviral vector CX3CL1. The effects of LPS, ICG-001 (a Wnt/β-catenin signaling pathway inhibitor), either alone or in combination, on M1 polarization of na?ve and FKN-overexpressing RAW264.7 cells were evaluated by detecting of intereukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) using ELISA. The protein expressions of the inflammatory factors (iNOS, TNF-α, and IL-6), FKN, Wnt-4, and β-catenin were detected by Western blotting. The subcellular localization of IL-6 in the cells was detected by immunofluorescence assay. RESULTS The RAW264.7 cell model of FKN overexpression was successfully established. In na?ve RAW264.7 cells, treatment with both ICG-001 and LPS, as compared with LPS alone, significant promoted TNF-α and IL-6 secretions, increased intracellular levels of TNF-α, IL-6 and iNOS (P < 0.05), and reduced intracellular FKN, Wnt-4 and β-catenin levels (P < 0.01). In FKN-overexpressing RAW264.7 cells, LPS treatment significantly reduced the secretion of TNF-α and IL-6 and intracellular levels of TNF-α, IL-6 and iNOS (P < 0.01), increased intracellular FKN, Wnt-4 and β-catenin protein contents (P < 0.01), and inhibited IL-6 localization in the cytoplasm; compared with LPS, the combined treatment with ICG-001 and LPS obviously enhanced IL-6 localization in the cytoplasm of the cells. CONCLUSIONS FKN overexpression suppresses LPS-induced M1 type polarization of RAW264.7 cells by activating Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Qiming Gong
- Department of Nephrology, Affiliated Hospital, Youjiang Medical University for Nationalities, Baise 533000, China
| | - Yan Jiang
- Science Laboratory Center, Youjiang Medical University for Nationalities, Baise 533000, China
| | - Junling Lu
- Department of Nephrology, Affiliated Hospital, Youjiang Medical University for Nationalities, Baise 533000, China
| | - Yanwu You
- Department of Nephrology, Affiliated Hospital, Youjiang Medical University for Nationalities, Baise 533000, China
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Transcriptional cyclin-dependent kinases as the mediators of inflammation-a review. Gene 2020; 769:145200. [PMID: 33031895 DOI: 10.1016/j.gene.2020.145200] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/18/2020] [Accepted: 09/29/2020] [Indexed: 12/19/2022]
Abstract
Cyclin-dependent kinases (CDKs) belong to the serine/threonine kinase family, and their unique interactions with a variety of cyclin complexes influence its catalytic activity to ensure unimpaired cell cycle progression. In addition to their cell cycle regulatory roles, it is becoming increasingly clear that the CDKs can have multiple functional roles like transcription, epigenetic regulation, metabolism, stem cell self-renewal, neuronal functions, and in spermatogenesis. Further in addition, recent reports suggest that CDKs have a remarkable regulatory role in influencing the pro-inflammatory functions of various cytokines during the clinical inflammatory responses. CDKs initiate the inflammatory responses by triggering the activity of prominent pro-inflammatory transcription factors such as nuclear factor kappa B (NF-kB), signal transducer and activator of transcription 3 (STAT3), and activator protein 1 (AP-1). The transcriptional CDKs (tCDKs) is crucial for organizing various transcription events and associated processes such as RNA capping, splicing, 3' end formation, and chromatin remodeling. Although the in-depth mechanism of certain mammalian CDKs is explored with respect to inflammation, the role of other tCDKs or any synergistic play among the members still remains unexplored. Until today, there is only supportive and palliative care available most of the inflammatory disorders, and thus it is the right time to explore novel pharmacological targets. In this regard, we focus on the pathophysiological role of CDK7, CDK8 and CDK9 and their impact on the development of inflammatory disorders within the mammals. Additionally, we discuss the potential trends of having tCDKs as a therapeutic target for fine-tuning inflammatory disorders.
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Bagchi DP, Nishii A, Li Z, DelProposto JB, Corsa CA, Mori H, Hardij J, Learman BS, Lumeng CN, MacDougald OA. Wnt/β-catenin signaling regulates adipose tissue lipogenesis and adipocyte-specific loss is rigorously defended by neighboring stromal-vascular cells. Mol Metab 2020; 42:101078. [PMID: 32919095 PMCID: PMC7554252 DOI: 10.1016/j.molmet.2020.101078] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/14/2020] [Accepted: 09/06/2020] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Canonical Wnt/β-catenin signaling is a well-studied endogenous regulator of mesenchymal cell fate determination, promoting osteoblastogenesis and inhibiting adipogenesis. However, emerging genetic evidence in humans links a number of Wnt pathway members to body fat distribution, obesity, and metabolic dysfunction, suggesting that this pathway also functions in adipocytes. Recent studies in mice have uncovered compelling evidence that the Wnt signaling pathway plays important roles in adipocyte metabolism, particularly under obesogenic conditions. However, complexities in Wnt signaling and differences in experimental models and approaches have thus far limited our understanding of its specific roles in this context. METHODS To investigate roles of the canonical Wnt pathway in the regulation of adipocyte metabolism, we generated adipocyte-specific β-catenin (β-cat) knockout mouse and cultured cell models. We used RNA sequencing, ChIP sequencing, and molecular approaches to assess expression of Wnt targets and lipogenic genes. We then used functional assays to evaluate effects of β-catenin deficiency on adipocyte metabolism, including lipid and carbohydrate handling. In mice maintained on normal chow and high-fat diets, we assessed the cellular and functional consequences of adipocyte-specific β-catenin deletion on adipose tissues and systemic metabolism. RESULTS We report that in adipocytes, the canonical Wnt/β-catenin pathway regulates de novo lipogenesis (DNL) and fatty acid monounsaturation. Further, β-catenin mediates effects of Wnt signaling on lipid metabolism in part by transcriptional regulation of Mlxipl and Srebf1. Intriguingly, adipocyte-specific loss of β-catenin is sensed and defended by CD45-/CD31- stromal cells to maintain tissue-wide Wnt signaling homeostasis in chow-fed mice. With long-term high-fat diet, this compensatory mechanism is overridden, revealing that β-catenin deletion promotes resistance to diet-induced obesity and adipocyte hypertrophy and subsequent protection from metabolic dysfunction. CONCLUSIONS Taken together, our studies demonstrate that Wnt signaling in adipocytes is required for lipogenic gene expression, de novo lipogenesis, and lipid desaturation. In addition, adipose tissues rigorously defend Wnt signaling homeostasis under standard nutritional conditions, such that stromal-vascular cells sense and compensate for adipocyte-specific loss. These findings underscore the critical importance of this pathway in adipocyte lipid metabolism and adipose tissue function.
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Affiliation(s)
- Devika P Bagchi
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Akira Nishii
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Ziru Li
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Jennifer B DelProposto
- Department of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Callie A Corsa
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Hiroyuki Mori
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Julie Hardij
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Brian S Learman
- Department of Microbiology and Immunology, University of Buffalo, Buffalo, NY, USA.
| | - Carey N Lumeng
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Ormond A MacDougald
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA; Division of Metabolism, Endocrinology, and Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA.
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Abaricia JO, Shah AH, Chaubal M, Hotchkiss KM, Olivares-Navarrete R. Wnt signaling modulates macrophage polarization and is regulated by biomaterial surface properties. Biomaterials 2020; 243:119920. [PMID: 32179303 PMCID: PMC7191325 DOI: 10.1016/j.biomaterials.2020.119920] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 02/15/2020] [Accepted: 02/25/2020] [Indexed: 12/28/2022]
Abstract
Macrophages are among the first cells to interact with biomaterials and ultimately determine their integrative fate. Biomaterial surface characteristics like roughness and hydrophilicity can activate macrophages to an anti-inflammatory phenotype. Wnt signaling, a key cell proliferation and differentiation pathway, has been associated with dysregulated macrophage activity in disease. However, the role Wnt signaling plays in macrophage activation and response to biomaterials is unknown. The aim of this study was to characterize the regulation of Wnt signaling in macrophages during classical pro- and anti-inflammatory polarization and in their response to smooth, rough, and rough-hydrophilic titanium (Ti) surfaces. Peri-implant Wnt signaling in macrophage-ablated (MaFIA) mice instrumented with intramedullary Ti rods was significantly attenuated compared to untreated controls. Wnt ligand mRNA were upregulated in a surface modification-dependent manner in macrophages isolated from the surface of Ti implanted in C57Bl/6 mice. In vitro, Wnt mRNAs were regulated in primary murine bone-marrow-derived macrophages cultured on Ti in a surface modification-dependent manner. When macrophageal Wnt secretion was inhibited, macrophage sensitivity to both physical and biological stimuli was abrogated. Loss of macrophage-derived Wnts also impaired recruitment of mesenchymal stem cells and T-cells to Ti implants in vivo. Finally, inhibition of integrin signaling decreased surface-dependent upregulation of Wnt genes. These results suggest that Wnt signaling regulates macrophage response to biomaterials and that macrophages are an important source of Wnt ligands during inflammation and healing.
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Affiliation(s)
- Jefferson O Abaricia
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Arth H Shah
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Manotri Chaubal
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Kelly M Hotchkiss
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States.
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Ashrafizadeh M, Rafiei H, Mohammadinejad R, Farkhondeh T, Samarghandian S. Wnt-regulating microRNAs role in gastric cancer malignancy. Life Sci 2020; 250:117547. [PMID: 32173311 DOI: 10.1016/j.lfs.2020.117547] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 02/06/2023]
Abstract
Gastric cancer (GC) is responsible for high morbidity and mortality worldwide. This cancer claims fifth place among other cancers. There are a number of factors associated with GC development such as alcohol consumption and tobacco smoking. It seems that genetic factors play significant role in GC malignancy and progression. MicroRNAs (miRs) are short non-coding RNA molecules with negative impact on the expression of target genes. A variety of studies have elucidated the potential role of miRs in GC growth. Investigation of molecular pathways has revealed that miRs function as upstream modulators of Wnt signaling pathway. This signaling pathway involves in important biological processes such as cell proliferation and differentiation, and its dysregulation is associated with GC invasion. At the present review, we demonstrate that how miRs regulate Wnt signaling pathway in GC malignancy.
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Affiliation(s)
- Milad Ashrafizadeh
- Department of Basic Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Hossein Rafiei
- Department of Biology, Faculty of Sciences, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Reza Mohammadinejad
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Tahereh Farkhondeh
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Saeed Samarghandian
- Healthy Ageing Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran.
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Suryawanshi A, Hussein MS, Prasad PD, Manicassamy S. Wnt Signaling Cascade in Dendritic Cells and Regulation of Anti-tumor Immunity. Front Immunol 2020; 11:122. [PMID: 32132993 PMCID: PMC7039855 DOI: 10.3389/fimmu.2020.00122] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 01/16/2020] [Indexed: 01/26/2023] Open
Abstract
Dendritic cells (DCs) control the strength and quality of antigen-specific adaptive immune responses. This is critical for launching a robust immunity against invading pathogens while maintaining a state of tolerance to self-antigens. However, this also represents a fundamental barrier to anti-tumor immune responses and cancer immunotherapy. DCs in the tumor microenvironment (TME) play a key role in this process. The factors in the TME and signaling networks that program DCs to a regulatory state are not fully understood. Recent advances point to novel mechanisms by which the canonical Wnt signaling cascade in DCs regulates immune suppression, and the same pathway in tumors is associated with the evasion of anti-tumor immunity. Here, we review these recent advances in the context of the pleiotropic effects of the Wnts in shaping anti-tumor immune responses by modulating DC functions. In addition, we will discuss how Wnt/β-catenin pathway in DCs can be targeted for successful cancer immunotherapy.
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Affiliation(s)
- Amol Suryawanshi
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, United States
| | - Mohamed S Hussein
- Georgia Cancer Center, Augusta University, Augusta, GA, United States
| | - Puttur D Prasad
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Santhakumar Manicassamy
- Georgia Cancer Center, Augusta University, Augusta, GA, United States.,Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA, United States
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