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Pang J, Kuang TD, Yu XY, Novák P, Long Y, Liu M, Deng WQ, Zhu X, Yin K. N6-methyladenosine in myeloid cells: a novel regulatory factor for inflammation-related diseases. J Physiol Biochem 2023:10.1007/s13105-023-01002-x. [PMID: 38158555 DOI: 10.1007/s13105-023-01002-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024]
Abstract
N6-methyladenosine (m6A) is one of the most abundant epitranscriptomic modifications on eukaryotic mRNA. Evidence has highlighted that m6A is altered in response to inflammation-related factors and it is closely associated with various inflammation-related diseases. Multiple subpopulations of myeloid cells, such as macrophages, dendritic cells, and granulocytes, are crucial for the regulating of immune process in inflammation-related diseases. Recent studies have revealed that m6A plays an important regulatory role in the functional of multiple myeloid cells. In this review, we comprehensively summarize the function of m6A modification in myeloid cells from the perspective of myeloid cell production, activation, polarization, and migration. Furthermore, we discuss how m6A-mediated myeloid cell function affects the progression of inflammation-related diseases, including autoimmune diseases, chronic metabolic diseases, and malignant tumors. Finally, we discuss the challenges encountered in the study of m6A in myeloid cells, intended to provide a new direction for the study of the pathogenesis of inflammation-related diseases.
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Affiliation(s)
- Jin Pang
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Tong-Dong Kuang
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Xin-Yuan Yu
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Petr Novák
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Yuan Long
- Department of General Practice, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Min Liu
- Department of General Practice, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Wei-Qian Deng
- Department of General Practice, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Xiao Zhu
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China.
| | - Kai Yin
- Department of General Practice, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.
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Mawambo G, Oubaha M, Ichiyama Y, Blot G, Crespo-Garcia S, Dejda A, Binet F, Diaz-Marin R, Sawchyn C, Sergeev M, Juneau R, Kaufman RJ, Affar EB, Mallette FA, Wilson AM, Sapieha P. HIF1α-dependent hypoxia response in myeloid cells requires IRE1α. J Neuroinflammation 2023; 20:145. [PMID: 37344842 DOI: 10.1186/s12974-023-02793-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 04/24/2023] [Indexed: 06/23/2023] Open
Abstract
Cellular adaptation to low oxygen tension triggers primitive pathways that ensure proper cell function. Conditions of hypoxia and low glucose are characteristic of injured tissues and hence successive waves of inflammatory cells must be suited to function under low oxygen tension and metabolic stress. While Hypoxia-Inducible Factor (HIF)-1α has been shown to be essential for the inflammatory response of myeloid cells by regulating the metabolic switch to glycolysis, less is known about how HIF1α is triggered in inflammation. Here, we demonstrate that cells of the innate immune system require activity of the inositol-requiring enzyme 1α (IRE1α/XBP1) axis in order to initiate HIF1α-dependent production of cytokines such as IL1β, IL6 and VEGF-A. Knockout of either HIF1α or IRE1α in myeloid cells ameliorates vascular phenotypes in a model of retinal pathological angiogenesis driven by sterile inflammation. Thus, pathways associated with ER stress, in partnership with HIF1α, may co-regulate immune adaptation to low oxygen.
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Affiliation(s)
- Gaëlle Mawambo
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
| | - Malika Oubaha
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
- Départment de Sciences Biologiques, Université du Québec À Montréal (UQAM), Montréal, QC, H2X 1L4, Canada
| | - Yusuke Ichiyama
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, Montréal, QC, H1T 2M4, Canada
| | - Guillaume Blot
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, Montréal, QC, H1T 2M4, Canada
| | - Sergio Crespo-Garcia
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
- School of Optometry, University of Montreal, Montreal, QC, H3T1P1, Canada
| | - Agnieszka Dejda
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
| | - François Binet
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
| | - Roberto Diaz-Marin
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
| | - Christina Sawchyn
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
| | - Mikhail Sergeev
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
| | - Rachel Juneau
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
| | - Randal J Kaufman
- Degenerative Diseases Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N. Torrey Pines Rd, La Jolla, CA, 92037, USA
| | - El Bachir Affar
- Department of Medicine, University of Montreal, Montreal, Canada
| | - Frédérick A Mallette
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
| | - Ariel M Wilson
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada
| | - Przemyslaw Sapieha
- Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, 5415 De L'Assomption Boulevard, Montréal, QC, H1T 2M4, Canada.
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, Montréal, QC, H1T 2M4, Canada.
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Tonc E, Omwanda GK, Tovar KA, Golden XME, Chatterjea D. Immune mechanisms in vulvodynia: key roles for mast cells and fibroblasts. Front Cell Infect Microbiol 2023; 13:1215380. [PMID: 37360527 PMCID: PMC10285386 DOI: 10.3389/fcimb.2023.1215380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
Vulvodynia is a debilitating condition characterized by painful sensitivity to touch and pressure in the vestibular tissue surrounding the vaginal opening. It is often a "diagnosis of exclusion" of idiopathic pain made in the absence of visible inflammation or injury. However, the association between increased vulvodynia risk and a history of yeast infections and skin allergies has led researchers to explore whether immune mechanisms of dysregulated inflammation might underlie the pathophysiology of this chronic pain condition. Here we synthesize epidemiological investigations, clinical biopsies and primary cell culture studies, and mechanistic insights from several pre-clinical models of vulvar pain. Taken together, these findings suggest that altered inflammatory responses of tissue fibroblasts, and other immune changes in the genital tissues, potentially driven by the accumulation of mast cells may be key to the development of chronic vulvar pain. The association of increased numbers and function of mast cells with a wide variety of chronic pain conditions lends credence to their involvement in vulvodynia pathology and underscores their potential as an immune biomarker for chronic pain. Alongside mast cells, neutrophils, macrophages, and numerous inflammatory cytokines and mediators are associated with chronic pain suggesting immune-targeted approaches including the therapeutic administration of endogenous anti-inflammatory compounds could provide much needed new ways to treat, manage, and control the growing global pandemic of chronic pain.
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Lin C, Li Y, Chu Y, Lu Y, Wei Z, Deng H, Gu S, Ding Q, Shen Z, Liao Q. Single-cell discovery of the scene and potential immunotherapeutic target in hypopharyngeal tumor environment. Cancer Gene Ther 2023; 30:462-71. [PMID: 36460803 DOI: 10.1038/s41417-022-00567-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 11/02/2022] [Accepted: 11/16/2022] [Indexed: 12/03/2022]
Abstract
Hypopharyngeal carcinoma is a cancer with the worst prognosis. We constructed the first single-cell transcriptome map for hypopharyngeal carcinoma and explored its underlying mechanisms. We systematically studied single-cell transcriptome data of 17,599 cells from hypopharyngeal carcinoma and paracancerous tissues. We identified categories of cells by dimensionality reduction and performed further subgroup analysis. Focusing on the potential mechanism in the cellular communication of hypopharyngeal carcinoma, we predicted ligand-receptor interactions and verified them via immunohistochemical and cellular experiments. In total, seven cell types were identified, including epithelial and myeloid cells. Subsequently, subgroup analysis showed significant tumor heterogeneity. Based on the pathological type of squamous cell carcinoma, we focused on intercellular communication between epithelial cells and various cells. We predicted the crosstalk and inferred the regulatory effect of cellular active ligands on the surface receptor of epithelial cells. From the top potential pairs, we focused on the BMPR2 receptor for further research, as it showed significantly higher expression in epithelial cancer tissue than in adjacent tissue. Further bioinformatics analysis, immunohistochemical staining, and cell experiments also confirmed its cancer-promoting effects. Overall, the single-cell perspective revealed complex crosstalk in hypopharyngeal cancer, in which BMPR2 promotes its proliferation and migration, providing a rationale for further study and treatment of this carcinoma.
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Martinek J, Lin J, Kim KI, Wang VG, Wu TC, Chiorazzi M, Boruchov H, Gulati A, Seeniraj S, Sun L, Marches F, Robson P, Rongvaux A, Flavell RA, George J, Chuang JH, Banchereau J, Palucka K. Transcriptional profiling of macrophages in situ in metastatic melanoma reveals localization-dependent phenotypes and function. Cell Rep Med 2022; 3:100621. [PMID: 35584631 PMCID: PMC9133468 DOI: 10.1016/j.xcrm.2022.100621] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/29/2021] [Accepted: 04/04/2022] [Indexed: 02/01/2023]
Abstract
Modulation of immune function at the tumor site could improve patient outcomes. Here, we analyze patient samples of metastatic melanoma, a tumor responsive to T cell-based therapies, and find that tumor-infiltrating T cells are primarily juxtaposed to CD14+ monocytes/macrophages rather than melanoma cells. Using immunofluorescence-guided laser capture microdissection, we analyze transcriptomes of CD3+ T cells, CD14 + monocytes/macrophages, and melanoma cells in non-dissociated tissue. Stromal CD14+ cells display a specific transcriptional signature distinct from CD14+ cells within tumor nests. This signature contains LY75, a gene linked with antigen capture and regulation of tolerance and immunity in dendritic cells (DCs). When applied to TCGA cohorts, this gene set can distinguish patients with significantly prolonged survival in metastatic cutaneous melanoma and other cancers. Thus, the stromal CD14+ cell signature represents a candidate biomarker and suggests that reprogramming of stromal macrophages to acquire DC function may offer a therapeutic opportunity for metastatic cancers.
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Affiliation(s)
- Jan Martinek
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Jianan Lin
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Kyung In Kim
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Victor G Wang
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT, USA
| | - Te-Chia Wu
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Michael Chiorazzi
- Department of Immunobiology, Yale University School of Medicine, Howard Hughes Medical Institute, New Haven, CT, USA
| | - Hannah Boruchov
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Ananya Gulati
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | | | - Lili Sun
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | | | - Paul Robson
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT, USA
| | - Anthony Rongvaux
- Fred Hutchinson Cancer Research Center, Program in Immunology, Seattle, WA, USA
| | - Richard A Flavell
- Department of Immunobiology, Yale University School of Medicine, Howard Hughes Medical Institute, New Haven, CT, USA
| | - Joshy George
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Jeffrey H Chuang
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | | | - Karolina Palucka
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT, USA.
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Nicaise AM, D'Angelo A, Ionescu RB, Krzak G, Willis CM, Pluchino S. The role of neural stem cells in regulating glial scar formation and repair. Cell Tissue Res 2021; 387:399-414. [PMID: 34820704 PMCID: PMC8975756 DOI: 10.1007/s00441-021-03554-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 11/10/2021] [Indexed: 02/06/2023]
Abstract
Glial scars are a common pathological occurrence in a variety of central nervous system (CNS) diseases and injuries. They are caused after severe damage and consist of reactive glia that form a barrier around the damaged tissue that leads to a non-permissive microenvironment which prevents proper endogenous regeneration. While there are a number of therapies that are able to address some components of disease, there are none that provide regenerative properties. Within the past decade, neural stem cells (NSCs) have been heavily studied due to their potent anti-inflammatory and reparative capabilities in disease and injury. Exogenously applied NSCs have been found to aid in glial scar healing by reducing inflammation and providing cell replacement. However, endogenous NSCs have also been found to contribute to the reactive environment by different means. Further understanding how NSCs can be leveraged to aid in the resolution of the glial scar is imperative in the use of these cells as regenerative therapies. To do so, humanised 3D model systems have been developed to study the development and maintenance of the glial scar. Herein, we explore the current work on endogenous and exogenous NSCs in the glial scar as well as the novel 3D stem cell–based technologies being used to model this pathology in a dish.
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Affiliation(s)
- Alexandra M Nicaise
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, UK.
| | - Andrea D'Angelo
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Rosana-Bristena Ionescu
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Grzegorz Krzak
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Cory M Willis
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Stefano Pluchino
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, UK.
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