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Kim A, McMullen MR, Bellar A, Streem D, Dasarathy J, Welch N, Dasarathy S. Genome Restructuring around Innate Immune Genes in Monocytes in Alcohol-associated Hepatitis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.07.607014. [PMID: 39211112 PMCID: PMC11360924 DOI: 10.1101/2024.08.07.607014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Many inflammatory genes in the immune system are clustered in the genome. The 3D genome architecture of these clustered genes likely plays a critical role in their regulation and alterations to this structure may contribute to diseases where inflammation is poorly controlled. Alcohol-associated hepatitis (AH) is a severe inflammatory disease that contributes significantly to morbidity in alcohol associated liver disease. Monocytes in AH are hyper-responsive to inflammatory stimuli and contribute significantly to inflammation. We performed high throughput chromatin conformation capture (Hi-C) technology on monocytes isolated from 4 AH patients and 4 healthy controls to better understand how genome structure is altered in AH. Most chromosomes from AH and healthy controls were significantly dissimilar from each other. Comparing AH to HC, many regions of the genome contained significant changes in contact frequency. While there were alterations throughout the genome, there were a number of hotspots containing a higher density of changes in structure. A few of these hotspots contained genes involved in innate immunity including the NK-gene receptor complex and the CXC-chemokines. Finally, we compare these results to scRNA-seq data from patients with AH challenged with LPS to predict how chromatin conformation impacts transcription of clustered immune genes. Together, these results reveal changes in the chromatin structure of monocytes from AH patients that perturb expression of highly clustered proinflammatory genes.
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Wang Q, Xie Y, Ma S, Luo H, Qiu Y. Role of microglia in diabetic neuropathic pain. Front Cell Dev Biol 2024; 12:1421191. [PMID: 39135776 PMCID: PMC11317412 DOI: 10.3389/fcell.2024.1421191] [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: 04/22/2024] [Accepted: 07/08/2024] [Indexed: 08/15/2024] Open
Abstract
Approximately one-third of the patients with diabetes worldwide suffer from neuropathic pain, mainly categorized by spontaneous and stimulus-induced pain. Microglia are a class of immune effector cells residing in the central nervous system and play a pivotal role in diabetic neuropathic pain (DNP). Microglia specifically respond to hyperglycemia along with inflammatory cytokines and adenosine triphosphate produced during hyperglycemic damage to nerve fibers. Because of the presence of multiple receptors on the microglial surface, microglia are dynamically and highly responsive to their immediate environment. Following peripheral sensitization caused by hyperglycemia, microglia are affected by the cascade of inflammatory factors and other substances and respond accordingly, resulting in a change in their functional state for DNP pathogenesis. Inhibition of receptors such as P2X reporters, reducing cytokine expression levels in the microglial reactivity mechanisms, and inhibiting their intracellular signaling pathways can effectively alleviate DNP. A variety of drugs attenuate DNP by inhibiting the aforementioned processes induced by microglial reactivity. In this review, we summarize the pathological mechanisms by which microglia promote and maintain DNP, the drugs and therapeutic techniques available, and the latest advances in this field.
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Affiliation(s)
- Qian Wang
- Department of Endocrinology and Metabolism, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, China
- School of Ophthalmology and Optometry, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Yilin Xie
- School of Ophthalmology and Optometry, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Shichao Ma
- School of Ophthalmology and Optometry, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Hongliang Luo
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Yue Qiu
- Department of Endocrinology and Metabolism, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, China
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Pan T, Xie DK, Li J, Qiang YJ, Fan SY, Wang TT, Han YY, Zang J, Yang Y, Zhao JL, Li SZ, Wu S. Glioma-Stem-Cell-Derived Exosomes Remodeled Glioma-Associated Macrophage via NEAT1/miR-125a/STAT3 Pathway. Cancers (Basel) 2024; 16:2500. [PMID: 39061140 PMCID: PMC11274466 DOI: 10.3390/cancers16142500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 06/06/2024] [Indexed: 07/28/2024] Open
Abstract
Glioblastoma (GBM), as the most common primary brain tumor, usually results in an extremely poor prognosis, in which glioma stem cells (GSCs) and their immunosuppressive microenvironment prominently intervene in the resistance to radiotherapy and chemotherapy that directly leads to tumor recurrence and shortened survival time. The specific mechanism through which exosomes generated from GSCs support the creation of an immunosuppressive microenvironment remains unknown, while it is acknowledged to be engaged in intercellular communication and the regulation of the glioma immunosuppressive microenvironment. The elevated expression of LncRNA-NEAT1 was found in glioma cells after radiotherapy, chemotherapy, and DNA damage stimulation, and NEAT1 could promote the malignant biological activities of GSCs. Emerging evidence suggests that lncRNAs may reply to external stimuli or DNA damage by playing a role in modulating different aspects of tumor biology. Our study demonstrated a promotive role of the carried NEAT1 by GSC-derived exosomes in the polarization of M2-like macrophages. Further experiments demonstrated the mediative role of miR-125a and its target gene STAT3 in NEAT1-induced polarization of M2-like macrophages that promote glioma progression. Our findings elucidate the mechanism by which GSCs influence the polarization of M2-like macrophages through exosomes, which may contribute to the formation of immunosuppressive microenvironments. Taken together, our study reveals the miR-125a-STAT3 pathway through which exosomal NEAT1 from treatment-resistant GSCs contributes to M2-like macrophage polarization, indicating the potential of exosomal NEAT1 for treating glioma.
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Affiliation(s)
- Tong Pan
- Department of Neurosurgery, Xijing Hospital, Air Force Medical University, Xi’an 710032, China; (T.P.); (J.L.); (Y.-J.Q.); (T.-T.W.); (Y.-Y.H.)
- Department of Biochemistry and Molecular Biology, Air Force Medical University, Xi’an 710032, China
| | - Dong-Kun Xie
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi’an 710069, China; (D.-K.X.); (Y.Y.)
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Air Force Medical University, Xi’an 710032, China;
| | - Juan Li
- Department of Neurosurgery, Xijing Hospital, Air Force Medical University, Xi’an 710032, China; (T.P.); (J.L.); (Y.-J.Q.); (T.-T.W.); (Y.-Y.H.)
| | - Yu-Jie Qiang
- Department of Neurosurgery, Xijing Hospital, Air Force Medical University, Xi’an 710032, China; (T.P.); (J.L.); (Y.-J.Q.); (T.-T.W.); (Y.-Y.H.)
| | - Song-Yuan Fan
- Department of Neurosurgery, The Air Force Hospital of Central Theater of PLA, Datong 037000, China;
| | - Ting-Ting Wang
- Department of Neurosurgery, Xijing Hospital, Air Force Medical University, Xi’an 710032, China; (T.P.); (J.L.); (Y.-J.Q.); (T.-T.W.); (Y.-Y.H.)
| | - Yuan-Yuan Han
- Department of Neurosurgery, Xijing Hospital, Air Force Medical University, Xi’an 710032, China; (T.P.); (J.L.); (Y.-J.Q.); (T.-T.W.); (Y.-Y.H.)
| | - Jian Zang
- Department of Radiotherapy, Xijing Hospital, Air Force Medical University, Xi’an 710032, China;
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi’an 710069, China; (D.-K.X.); (Y.Y.)
| | - Jun-Long Zhao
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Air Force Medical University, Xi’an 710032, China;
| | - San-Zhong Li
- Department of Neurosurgery, Xijing Hospital, Air Force Medical University, Xi’an 710032, China; (T.P.); (J.L.); (Y.-J.Q.); (T.-T.W.); (Y.-Y.H.)
| | - Shuang Wu
- Department of Neurosurgery, Xijing Hospital, Air Force Medical University, Xi’an 710032, China; (T.P.); (J.L.); (Y.-J.Q.); (T.-T.W.); (Y.-Y.H.)
- Department of Neurosurgery, The Air Force Hospital of Central Theater of PLA, Datong 037000, China;
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Hu T, Liu CH, Zheng Y, Ji J, Zheng Y, He SK, Wu D, Jiang W, Zeng Q, Zhang N, Tang H. miRNAs in patients with alcoholic liver disease: a systematic review and meta-analysis. Expert Rev Gastroenterol Hepatol 2024; 18:283-292. [PMID: 38937981 DOI: 10.1080/17474124.2024.2374470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 06/26/2024] [Indexed: 06/29/2024]
Abstract
INTRODUCTION Alcoholic liver disease (ALD) encompasses a spectrum of liver conditions, including liver steatosis, alcoholic hepatitis (AH), fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). microRNAs (miRNAs) have garnered significant interest as potential biomarkers for ALD. METHODS We searched PubMed, Embase, Web of Science and Cochrane Central Register of Controlled Trials (CENTRAL) systemically from inception to June 2024. All extracted data was stratified according to the stages of ALD. The vote-counting strategy performed a meta-analysis on miRNA expression profiles. RESULTS We included 40 studies. In serum of individuals with alcohol-use vs. no alcohol-use, miRNA-122 and miRNA-155 were upregulated, and miRNA-146a was downregulated. In patients with ALD vs. healthy controls, miRNA-122 and miRNA-155 were also upregulated, and miRNA-146a was downregulated. However, in patients with AH vs. healthy individuals, only the serum miRNA-122 level was upregulated. Due to insufficient data on diagnostic accuracy, we failed to conclude the ability of miRNAs to distinguish between different stages of ALD-related liver fibrosis. The results for ALD-related HCC were also insufficient and controversial. CONCLUSIONS Circulating miRNA-122 was the most promising biomarker to manage individuals with ALD. More studies were needed for the diagnostic accuracy of miRNAs in ALD. REGISTRATION This protocol was registered on the International Prospective Register of Systematic Reviews (PROSPERO) (www.crd.york.ac.uk/prospero/) with registration number CRD42023391931.
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Affiliation(s)
- Tengyue Hu
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
- Laboratory of Infectious and Liver Diseases, Institution of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
| | - Chang Hai Liu
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
- Laboratory of Infectious and Liver Diseases, Institution of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
| | - Yurong Zheng
- West China School of Public Health, Sichuan University, Chengdu, China
| | - Jialin Ji
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Yantong Zheng
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Si-Ke He
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Dongbo Wu
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
- Laboratory of Infectious and Liver Diseases, Institution of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
| | - Wei Jiang
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
- Laboratory of Infectious and Liver Diseases, Institution of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
| | - Qingmin Zeng
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
- Laboratory of Infectious and Liver Diseases, Institution of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
| | - Nannan Zhang
- National Center for Birth Defect Monitoring, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Chengdu, China
| | - Hong Tang
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
- Laboratory of Infectious and Liver Diseases, Institution of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, China
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Zhang L, Ma Z, Zhang X, Wang J, Tian W, Ren Y, Liu Y, Wang T, Li Y, Liu Y, Shen W, Li T, Liu J, Ma J, Zhang X, Yang S, Wang H. Butyrate alleviates alcoholic liver disease-associated inflammation through macrophage regulation and polarization via the HDAC1/miR-155 axis. Int Immunopharmacol 2024; 131:111852. [PMID: 38492338 DOI: 10.1016/j.intimp.2024.111852] [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: 11/25/2023] [Revised: 02/25/2024] [Accepted: 03/10/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND We recently found that butyrate could ameliorate inflammation of alcoholic liver disease (ALD) in mice. However, the exact mechanism remains incompletely comprehended. Here, we examined the role of butyrate on ALD-associated inflammation through macrophage (Mψ) regulation and polarization using in vivo and in vitro experiments. METHODS For in vivo experiments, C57BL/6J mice were fed modified Lieber-DeCarli liquid diets supplemented with or without ethanol and sodium butyrate (NaB). After 6 weeks of treatment, mice were euthanized and associated indicators were analyzed. For in vitro experiments, lipopolysaccharide (LPS)-induced inflammatory murine RAW264.7 cells were treated with NaB or miR-155 inhibitor/mimic to verify the anti-inflammatory effect and underlying mechanism. RESULTS The administration of NaB alleviated pathological damage and associated inflammation, including LPS, tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-1β levels in ALD mice. NaB intervention restored the imbalance of macrophage polarization by inhibiting inducible nitric oxide synthase (iNOS) and elevating arginase-1 (Arg-1). Moreover, NaB reduced histone deacetylase-1 (HDAC1), nuclear factor kappa-B (NF-κB), NOD-like receptor thermal protein domain associated protein 3 (NLRP3), and miR-155 expression in ALD mice, but also increased peroxisome proliferator-activated receptor-γ (PPAR-γ). Thus, MiR-155 was identified as a strong regulator of ALD. To further penetrate the role of miR-155, LPS-stimulated RAW264.7 cells co-cultured with NaB were treated with the specific inhibitor or mimic. Intriguingly, miR-155 was capable of negatively regulated inflammation with NaB intervention by targeting SOCS1, SHIP1, and IRAK-M genes. CONCLUSION Butyrate suppresses the inflammation in mice with ALD by regulating macrophage polarization via the HDAC1/miR-155 axis, which may potentially contribute to the novel therapeutic treatment for the disease.
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Affiliation(s)
- Lina Zhang
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan 750004 Ningxia, China
| | - Zhiguo Ma
- Yinchuan Hospital of Traditional Chinese Medicine, Yinchuan 750004 Ningxia, China
| | - Xiaoxu Zhang
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan 750004 Ningxia, China
| | - Jing Wang
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan 750004 Ningxia, China
| | - Wenyan Tian
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan 750004 Ningxia, China
| | - Yi Ren
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan 750004 Ningxia, China
| | - Yajuan Liu
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan 750004 Ningxia, China
| | - Ting Wang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004 Ningxia, China
| | - Yiwei Li
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004 Ningxia, China
| | - Yuanyuan Liu
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004 Ningxia, China
| | - Wenke Shen
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004 Ningxia, China
| | - Ting Li
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan 750004 Ningxia, China
| | - Jian Liu
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan 750004 Ningxia, China
| | - Junbai Ma
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004 Ningxia, China
| | - Xiaoxia Zhang
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan 750004 Ningxia, China.
| | - Shaoqi Yang
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan 750004 Ningxia, China.
| | - Hao Wang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004 Ningxia, China.
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Jouve M, Carpentier R, Kraiem S, Legrand N, Sobolewski C. MiRNAs in Alcohol-Related Liver Diseases and Hepatocellular Carcinoma: A Step toward New Therapeutic Approaches? Cancers (Basel) 2023; 15:5557. [PMID: 38067261 PMCID: PMC10705678 DOI: 10.3390/cancers15235557] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 06/29/2024] Open
Abstract
Alcohol-related Liver Disease (ALD) is the primary cause of chronic liver disorders and hepatocellular carcinoma (HCC) development in developed countries and thus represents a major public health concern. Unfortunately, few therapeutic options are available for ALD and HCC, except liver transplantation or tumor resection for HCC. Deciphering the molecular mechanisms underlying the development of these diseases is therefore of major importance to identify early biomarkers and to design efficient therapeutic options. Increasing evidence indicate that epigenetic alterations play a central role in the development of ALD and HCC. Among them, microRNA importantly contribute to the development of this disease by controlling the expression of several genes involved in hepatic metabolism, inflammation, fibrosis, and carcinogenesis at the post-transcriptional level. In this review, we discuss the current knowledge about miRNAs' functions in the different stages of ALD and their role in the progression toward carcinogenesis. We highlight that each stage of ALD is associated with deregulated miRNAs involved in hepatic carcinogenesis, and thus represent HCC-priming miRNAs. By using in silico approaches, we have uncovered new miRNAs potentially involved in HCC. Finally, we discuss the therapeutic potential of targeting miRNAs for the treatment of these diseases.
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Affiliation(s)
- Mickaël Jouve
- Univ. Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, F-59000 Lille, France
| | - Rodolphe Carpentier
- Univ. Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, F-59000 Lille, France
| | - Sarra Kraiem
- Univ. Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, F-59000 Lille, France
| | - Noémie Legrand
- Univ. Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, F-59000 Lille, France
| | - Cyril Sobolewski
- Univ. Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, F-59000 Lille, France
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Fernández-Regueras M, Carbonell C, Salete-Granado D, García JL, Gragera M, Pérez-Nieto MÁ, Morán-Plata FJ, Mayado A, Torres JL, Corchete LA, Usategui-Martín R, Bueno-Martínez E, Rojas-Pirela M, Sabio G, González-Sarmiento R, Orfao A, Laso FJ, Almeida J, Marcos M. Predominantly Pro-Inflammatory Phenotype with Mixed M1/M2 Polarization of Peripheral Blood Classical Monocytes and Monocyte-Derived Macrophages among Patients with Excessive Ethanol Intake. Antioxidants (Basel) 2023; 12:1708. [PMID: 37760011 PMCID: PMC10525853 DOI: 10.3390/antiox12091708] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 08/27/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Excessive alcohol consumption impairs the immune system, induces oxidative stress, and triggers the activation of peripheral blood (PB) monocytes, thereby contributing to alcoholic liver disease (ALD). We analyzed the M1/M2 phenotypes of circulating classical monocytes and macrophage-derived monocytes (MDMs) in excessive alcohol drinkers (EADs). PB samples from 20 EADs and 22 healthy controls were collected for isolation of CD14+ monocytes and short-term culture with LPS/IFNγ, IL4/IL13, or without stimulation. These conditions were also used to polarize MDMs into M1, M2, or M0 phenotypes. Cytokine production was assessed in the blood and culture supernatants. M1/M2-related markers were analyzed using mRNA expression and surface marker detection. Additionally, the miRNA profile of CD14+ monocytes was analyzed. PB samples from EADs exhibited increased levels of pro-inflammatory cytokines. Following short-term culture, unstimulated blood samples from EADs showed higher levels of soluble TNF-α and IL-8, whereas monocytes expressed increased levels of surface TNF-α and elevated mRNA expression of pro-inflammatory cytokines and inducible nitric oxide synthase. MDMs from EADs showed higher levels of TNF-α and CD206 surface markers and increased IL-10 production. LPS/IFNγ induced higher mRNA expression of Nrf2 only in the controls. miRNA analysis revealed a distinctive miRNA profile that is potentially associated with liver carcinogenesis and ALD through inflammation and oxidative stress. This study confirms the predominantly pro-inflammatory profile of PB monocytes among EADs and suggests immune exhaustion features in MDMs.
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Affiliation(s)
- María Fernández-Regueras
- Hospital Universitario de Burgos, 09006 Burgos, Spain
- Hospital Universitario de Salamanca, 37007 Salamanca, Spain
| | - Cristina Carbonell
- Hospital Universitario de Salamanca, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
| | - Daniel Salete-Granado
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
| | - Juan-Luis García
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
- Translational and Clinical Research Program, Centro de Investigación del Cáncer e Instituto de Biología Molecular y Celular del Cáncer (IBMCC), 37007 Salamanca, Spain
| | - Marcos Gragera
- Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, 28049 Madrid, Spain
- Centro Nacional de Investigaciones Cardiovasculares, 28029 Madrid, Spain
| | - María-Ángeles Pérez-Nieto
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León, 42002 Soria, Spain
| | - Francisco-Javier Morán-Plata
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
- Translational and Clinical Research Program, Centro de Investigación del Cáncer e Instituto de Biología Molecular y Celular del Cáncer (IBMCC), 37007 Salamanca, Spain
| | - Andrea Mayado
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
- Translational and Clinical Research Program, Centro de Investigación del Cáncer e Instituto de Biología Molecular y Celular del Cáncer (IBMCC), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Jorge-Luis Torres
- Hospital Universitario de Salamanca, 37007 Salamanca, Spain
- Complejo Asistencial de Zamora, 49022 Zamora, Spain
| | - Luis-Antonio Corchete
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Translational and Clinical Research Program, Centro de Investigación del Cáncer e Instituto de Biología Molecular y Celular del Cáncer (IBMCC), 37007 Salamanca, Spain
| | - Ricardo Usategui-Martín
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Biología Celular, Facultad de Medicina, Universidad de Valladolid, 47005 Valladolid, Spain
| | - Elena Bueno-Martínez
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
| | - Maura Rojas-Pirela
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Guadalupe Sabio
- Centro Nacional de Investigaciones Cardiovasculares, 28029 Madrid, Spain
| | - Rogelio González-Sarmiento
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
| | - Alberto Orfao
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
- Translational and Clinical Research Program, Centro de Investigación del Cáncer e Instituto de Biología Molecular y Celular del Cáncer (IBMCC), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Francisco-Javier Laso
- Hospital Universitario de Salamanca, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
| | - Julia Almeida
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
- Translational and Clinical Research Program, Centro de Investigación del Cáncer e Instituto de Biología Molecular y Celular del Cáncer (IBMCC), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Miguel Marcos
- Hospital Universitario de Salamanca, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain
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8
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Kim A, Ortega-Ribera M, McMullen MR, Bellar A, Taiwo M, Pathak V, Streem D, Dasarathy J, Welch N, Dasarathy S, Vachharajani V, Nagy LE. Altered Anti-Viral Immune Responses in Monocytes in Overweight Heavy Drinkers. iScience 2023; 26:107133. [PMID: 37361874 PMCID: PMC10268809 DOI: 10.1016/j.isci.2023.107133] [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: 01/04/2023] [Revised: 05/08/2023] [Accepted: 06/12/2023] [Indexed: 06/28/2023] Open
Abstract
Alcohol abuse causes increased susceptibility to respiratory syndromes like bacterial pneumonia and viral infections like SARS-CoV-2. Heavy drinkers (HD) are at higher risk of severe COVID-19 if they are also overweight, yet the molecular mechanisms are unexplored. Single-cell RNA-seq (scRNA-seq) was performed on peripheral blood mononuclear cells from lean or overweight HD and healthy controls (HC) after challenge with a dsRNA homopolymer (PolyI:C) to mimic a viral infection and/or with lipopolysaccharide (LPS). All monocyte populations responded to both PolyI:C and LPS with pro-inflammatory gene expression. However, expression of interferon stimulated genes, essential for inhibiting viral pathogenesis, was greatly reduced in overweight patients. Interestingly, the number of upregulated genes in response to PolyI:C challenge was far greater in monocytes from HD compared to HC, including much stronger pro-inflammatory cytokine and interferon-γ signaling responses. These results suggest increased body weight reduced anti-viral responses while heavy drinking increased pro-inflammatory cytokines.
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Affiliation(s)
- Adam Kim
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Medicine, University of Connecticut Health Center, Farmington, CT
| | - Martí Ortega-Ribera
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - Megan R McMullen
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - Annette Bellar
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - Moyinoluwa Taiwo
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - Vai Pathak
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - David Streem
- - Lutheran Hospital, Cleveland Clinic, Cleveland, OH
| | | | - Nicole Welch
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH
- - Department of Molecular Medicine, Case Western Reserve University, Cleveland, OH
| | - Srinivasan Dasarathy
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH
- - Department of Molecular Medicine, Case Western Reserve University, Cleveland, OH
| | - Vidula Vachharajani
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Critical Care Medicine Cleveland Clinic Respiratory Institute, Cleveland, OH
| | - Laura E Nagy
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH
- - Department of Molecular Medicine, Case Western Reserve University, Cleveland, OH
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9
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Sprenkle NT, Serezani CH, Pua HH. MicroRNAs in Macrophages: Regulators of Activation and Function. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:359-368. [PMID: 36724439 PMCID: PMC10316964 DOI: 10.4049/jimmunol.2200467] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 10/13/2022] [Indexed: 02/03/2023]
Abstract
Macrophages are sentinels of the innate immune system that maintain tissue homeostasis and contribute to inflammatory responses. Their broad scope of action depends on both functional heterogeneity and plasticity. Small noncoding RNAs called microRNAs (miRNAs) contribute to macrophage function as post-transcriptional inhibitors of target gene networks. Genetic and pharmacologic studies have uncovered genes regulated by miRNAs that control macrophage cellular programming and macrophage-driven pathology. miRNAs control proinflammatory M1-like activation, immunoregulatory M2-like macrophage activation, and emerging macrophage functions in metabolic disease and innate immune memory. Understanding the gene networks regulated by individual miRNAs enhances our understanding of the spectrum of macrophage function at steady state and during responses to injury or pathogen invasion, with the potential to develop miRNA-based therapies. This review aims to consolidate past and current studies investigating the complexity of the miRNA interactome to provide the reader with a mechanistic view of how miRNAs shape macrophage behavior.
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Affiliation(s)
| | - C Henrique Serezani
- Department of Pathology, Microbiology, and Immunology
- Department of Medicine, Division of Infectious Diseases
- Vanderbilt Center for Immunobiology, Nashville, Tennessee 37232, USA
- Vandebilt Institute of Infection, Immunology and Inflammation; Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
| | - Heather H Pua
- Department of Pathology, Microbiology, and Immunology
- Vanderbilt Center for Immunobiology, Nashville, Tennessee 37232, USA
- Vandebilt Institute of Infection, Immunology and Inflammation; Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
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10
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Wu X, Fan X, Miyata T, Kim A, Cajigas-Du Ross CK, Ray S, Huang E, Taiwo M, Arya R, Wu J, Nagy LE. Recent Advances in Understanding of Pathogenesis of Alcohol-Associated Liver Disease. ANNUAL REVIEW OF PATHOLOGY 2023; 18:411-438. [PMID: 36270295 PMCID: PMC10060166 DOI: 10.1146/annurev-pathmechdis-031521-030435] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Alcohol-associated liver disease (ALD) is one of the major diseases arising from chronic alcohol consumption and is one of the most common causes of liver-related morbidity and mortality. ALD includes asymptomatic liver steatosis, fibrosis, cirrhosis, and alcohol-associated hepatitis and its complications. The progression of ALD involves complex cell-cell and organ-organ interactions. We focus on the impact of alcohol on dysregulation of homeostatic mechanisms and regulation of injury and repair in the liver. In particular, we discuss recent advances in understanding the disruption of balance between programmed cell death and prosurvival pathways, such as autophagy and membrane trafficking, in the pathogenesis of ALD. We also summarize current understanding of innate immune responses, liver sinusoidal endothelial cell dysfunction and hepatic stellate cell activation, and gut-liver and adipose-liver cross talk in response to ethanol. In addition,we describe the current potential therapeutic targets and clinical trials aimed at alleviating hepatocyte injury, reducing inflammatory responses, and targeting gut microbiota, for the treatment of ALD.
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Affiliation(s)
- Xiaoqin Wu
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
| | - Xiude Fan
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
| | - Tatsunori Miyata
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
| | - Adam Kim
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
| | - Christina K Cajigas-Du Ross
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
| | - Semanti Ray
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
| | - Emily Huang
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
| | - Moyinoluwa Taiwo
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
| | - Rakesh Arya
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
| | - Jianguo Wu
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
- Department of Molecular Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Laura E Nagy
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA;
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Molecular Medicine, Case Western Reserve University, Cleveland, Ohio, USA
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11
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Chen YH, Huang YC, Chen CH, Wen YT, Tsai RK, Chen C. Investigation of the Protective Effect of Extracellular Vesicle miR-124 on Retinal Ganglion Cells Using a Photolabile Paper-Based Chip. Invest Ophthalmol Vis Sci 2023; 64:17. [PMID: 36689234 PMCID: PMC9896847 DOI: 10.1167/iovs.64.1.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Purpose Photolabile paper-based chips were developed to isolate extracellular vesicles (EVs) from small-volume samples (less than 30 µL), such as vitreous humor. Putative neuroprotective effects of EVs' microRNAs were investigated by using the paper chip and a rodent model with nonarteritic anterior ischemic optic neuropathy (rNAION). Methods rNAION was established using laser-induced photoactivation of rose bengal administered intravenously. On days 0, 0.25, 1, 3, and 7 after rNAION induction, CD63-positive EV microRNAs (CD63+-EV miRNAs) in vitreous humor samples were enriched using the paper chip and assessed using microarray and quantitative RT-PCR analyses. The viability and visual function of retinal ganglion cells (RGCs) were further assessed by measuring photopic flash visual evoked potentials (FVEPs). Results We identified 38 different variations of CD63+-EV miRNAs with more than twofold altered expressions. Among them, M1-related miRNA, mR-31a-5p, and M2-related miRNA, miR-125a-5p, miR-182, miR-181a-5p, and miR-124-3, were capable of coordinating anti-inflammatory reactions during rNAION because of their capacity to activate macrophages. In particular, miR-124, having the most dramatic alteration of gene expression, was synthesized and injected intravitreally. Compared to controls, rats that received miR-124 had shown increased RGC survivability and improved visual function. Conclusions Our research team has developed a paper-based chip capable of capturing EVs that can be released after UV exposure. The quantity and quality of EV-miRNAs extracted are adequate for microarray and quantitative RT-PCR analyses. Animal studies suggest that miR-124 may play a neuroprotective role in the natural recovery of rNAION and holds the potential to be a novel treatment option.
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Affiliation(s)
- Yi-Hsun Chen
- Institution of NanoEngineering and MicroSystems, Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan,Biomedical Technology and Device Research Laboratories (BDL), Industrial Technology Research Institute (ITRI), Hsinchu, Taiwan
| | - Yu Chuan Huang
- School of Pharmacy & Institute Pharmacy, National Defense Medical Center, Taipei, Republic of China,Department of Research and Development, National Defense Medical Center, Taipei, Republic of China
| | - Chih-Hung Chen
- Biomedical Technology and Device Research Laboratories (BDL), Industrial Technology Research Institute (ITRI), Hsinchu, Taiwan
| | - Yao-Tseng Wen
- Institute of Eye Research, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Rong-Kung Tsai
- Institute of Eye Research, Buddhist Tzu Chi General Hospital, Hualien, Taiwan,Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Chihchen Chen
- Institution of NanoEngineering and MicroSystems, Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan
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12
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Kim A, Cajigas-Du Ross CK, Dasarathy J, Bellar A, Streem D, Welch N, Dasarathy S, Nagy LE. Diminished function of cytotoxic T- and NK- cells in severe alcohol-associated hepatitis. METABOLISM AND TARGET ORGAN DAMAGE 2022; 2:18. [PMID: 39148503 PMCID: PMC11326509 DOI: 10.20517/mtod.2022.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Aim Metabolic liver diseases, including alcohol- and non-alcoholic fatty liver diseases (ALD/NAFLD), are characterized by inflammation and decreased ability to prevent infections. Patients with severe alcohol-associated hepatitis (sAH) are particularly susceptible to infections while undergoing treatment with steroids. Understanding the immunological mechanisms for these responses is critical to managing the treatment of patients with metabolic liver diseases. Cytotoxic NK cells and CD8 T cells, using cytolytic granules, serve an important immunological role by killing infected cells, including monocytes. However, patients with sAH have dysfunctional NK cells, which cannot kill target cells, though the mechanism is unknown. Method We performed an exploratory study using single-cell RNA-seq (scRNA-seq) (n = 4) and multi-panel intracellular flow cytometry (n = 7-8 for all patient groups) on PBMCs isolated from patients with sAH and healthy controls (HC). Results ScRNA-seq revealed receptors in NK cells and CD8 T cells required for cytotoxic cell recognition of activated monocytes were downregulated in patients with sAH compared to healthy controls. Granulysin was the most downregulated gene in both NK cells and effector CD8 T cells. In NK cells from HC, expression of granulysin, perforin, and granzymes A and B was highly correlated; however, in sAH, these genes lost coordinate expression, indicative of dysfunctional cytolytic granule formation. Finally, the expression of cytolytic granule proteins in NK cells was decreased from sAH, indicating reduced cytolytic granules. Conclusion Together, these results suggest a loss of cytotoxic cell function in PBMCs from sAH that may contribute to a decreased ability to communicate with other immune cells, such as monocytes, and prevent the killing of infected cells, thus increasing the risk of infection.
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Affiliation(s)
- Adam Kim
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Christina K Cajigas-Du Ross
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA
| | | | - Annette Bellar
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA
| | - David Streem
- Lutheran Hospital, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Nicole Welch
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Srinivasan Dasarathy
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Laura E Nagy
- Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH 44195, USA
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13
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Wu S, Ren K, Zhao J, Li J, Jia B, Wu X, Dou Y, Fei X, Huan Y, He X, Wang T, Lv W, Wang L, Wang Y, Zhao J, Fei Z, Li S. LncRNA GAS5 represses stemness and malignancy of gliomas via elevating the SPACA6-miR-125a/let-7e Axis. Front Oncol 2022; 12:803652. [PMID: 36106122 PMCID: PMC9465381 DOI: 10.3389/fonc.2022.803652] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Glioblastoma (GBM) is a highly invasive neurological malignancy with poor prognosis. LncRNA-GAS5 (growth arrest-specific transcript 5) is a tumor suppressor involved in multiple cancers. In this study, we explored the clinical significance, biological function, and underlying mechanisms of GAS5 in GBM. We showed that lncRNA-GAS5 expression decreased in high-grade glioma tissues and cells, which might be associated with poor prognosis. GAS5 overexpression lowered cell viability, suppressed GBM cell migration and invasion, and impaired the stemness and proliferation of glioma stem cells (GSCs). We further discovered that GAS5 inhibited the viability of glioma cells through miR-let-7e and miR-125a by protecting SPACA6 from degradation. Moreover, GAS5 played an anti-oncogenic role in GBM through the combined involvement of let-7e and miR-125a in vivo and in vitro. Notably, these two miRNAs block the IL-6/STAT3 pathway in tumor tissues extracted from a xenograft model. Taken together, our study provides evidence for an important role of GAS5 in GBM by affecting the proliferation and migration of GSCs, thus providing a new potential prognostic biomarker and treatment strategy for GBM.
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Affiliation(s)
- Shuang Wu
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Kaixi Ren
- Department of Neurology, Tangdu Hospital, Air Force Military Medical University, Xi’an, China
| | - Jing Zhao
- Department of Anesthesiology, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Juan Li
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Bo Jia
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Xiuquan Wu
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Yanan Dou
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Xiaowei Fei
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Yu Huan
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Xin He
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Tingting Wang
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Weihao Lv
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Li Wang
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Yan’gang Wang
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Junlong Zhao
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Air Force Military Medical University, Xi’an, China
- *Correspondence: Sanzhong Li, ; Zhou Fei, ; Junlong Zhao,
| | - Zhou Fei
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
- *Correspondence: Sanzhong Li, ; Zhou Fei, ; Junlong Zhao,
| | - Sanzhong Li
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi’an, China
- *Correspondence: Sanzhong Li, ; Zhou Fei, ; Junlong Zhao,
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14
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Zhou RM, Shi ZH, Shan K, Zhang SJ, Zhang YH, Liang Y, Yan B, Zhao C. Comparative Analysis of Differentially Expressed Circular RNAs in Polarized Macrophages. Front Genet 2022; 13:823517. [PMID: 35368656 PMCID: PMC8967150 DOI: 10.3389/fgene.2022.823517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 02/15/2022] [Indexed: 12/04/2022] Open
Abstract
Macrophage polarization is a process that macrophages exert different functions according to surrounding micro-environment. Macrophages commonly exist in two distinct subsets: classically activated M1 macrophages and alternatively activated M2 macrophages. Circular RNAs (circRNAs) are a novel class of non-coding RNAs generated by back-splicing. Thousands of circRNAs were identified in different cells and tissues. Recent studies have revealed that circRNAs play a crucial role in regulating transcriptional and post-transcriptional gene expression. However, the effects and roles of circRNAs in macrophage polarization have not been well elucidated. Here, circRNAs expression profiles were determined in human THP-1 macrophages incubated in conditions causing activation toward M1 (interferon-γ + LPS) or M2 (interleukin-4) phenotypes. Overall, 9,720 circular RNA were detected from RNA sequencing data. Compared with M2 macrophages, a total of 140 circRNAs were aberrantly expressed in M1 macrophages, including 71 up-regulated circRNAs and 69 down-regulated circRNAs. Quantitative real-time PCR (qRT-PCR) results were generally consistent with the selected differentially expressed circRNAs. Gene Ontology (GO) and KEGG pathway analyses were used to predict biological functions and potential mechanisms of the host linear transcripts of these up-regulated and down-regulated circRNAs. Furthermore, we found that the expression level of circRNA-RNF19B (circRNF19B) in M1 macrophages was significantly higher than that in THP-1 macrophages and M2 macrophages. circRNF19B expression was increased when M2 converted to M1 whereas decreased when M1 converted to M2. Knockdown of circRNF19B following the activation of THP-1 cells using interferon-γ + LPS diminished the expression of M1 macrophages markers and elevated the expression of M2 macrophages markers. In conclusion, these data suggest the involvement of altered circRNAs expression patterns in macrophages exposure to different activating conditions. Circular RNAs may play important roles in regulating macrophage polarization.
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Affiliation(s)
- Rong-mei Zhou
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Ze-hui Shi
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Kun Shan
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Shu-jie Zhang
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Yi-han Zhang
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Yu Liang
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Biao Yan
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
- *Correspondence: Biao Yan, ; Chen Zhao,
| | - Chen Zhao
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
- *Correspondence: Biao Yan, ; Chen Zhao,
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15
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Ajoolabady A, Aslkhodapasandhokmabad H, Zhou Y, Ren J. Epigenetic modification in alcohol‐related liver diseases. Med Res Rev 2022; 42:1463-1491. [DOI: 10.1002/med.21881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/21/2022] [Accepted: 01/30/2022] [Indexed: 12/13/2022]
Affiliation(s)
- Amir Ajoolabady
- School of Pharmacy University of Wyoming College of Health Sciences Laramie Wyoming USA
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases Zhongshan Hospital Fudan University Shanghai China
| | | | - Yuan Zhou
- Department of Biomedical Informatics, School of Basic Medical Sciences Peking University Beijing China
| | - Jun Ren
- School of Pharmacy University of Wyoming College of Health Sciences Laramie Wyoming USA
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases Zhongshan Hospital Fudan University Shanghai China
- Department of Laboratory Medicine and Pathology University of Washington Seattle Washington USA
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16
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Malherbe DC, Messaoudi I. Transcriptional and Epigenetic Regulation of Monocyte and Macrophage Dysfunction by Chronic Alcohol Consumption. Front Immunol 2022; 13:911951. [PMID: 35844518 PMCID: PMC9277054 DOI: 10.3389/fimmu.2022.911951] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
Drinking alcohol, even in moderation, can affect the immune system. Studies have shown disproportionate effects of alcohol on circulating and tissue-resident myeloid cells (granulocytes, monocytes, macrophages, dendritic cells). These cells orchestrate the body's first line of defense against microbial challenges as well as maintain tissue homeostasis and repair. Alcohol's effects on these cells are dependent on exposure pattern, with acute drinking dampening but chronic drinking enhancing production of inflammatory mediators. Although chronic drinking is associated with heightened systemic inflammation, studies on tissue resident macrophage populations in several organs including the spleen, liver, brain, and lung have also shown compromised functional and metabolic capacities of these cells. Many of these effects are thought to be mediated by oxidative stress caused by alcohol and its metabolites which can directly impact the cellular epigenetic landscapes. In addition, since myeloid cells are relatively short-lived in circulation and are under constant repopulation from the bone marrow compartment, alcohol's effects on bone marrow progenitors and hematopoiesis are important for understanding the impact of alcohol systemically on these myeloid populations. Alcohol-induced disruption of progenitor, circulating, and tissue resident myeloid populations contribute to the increased susceptibility of patients with alcohol use disorders to viral and bacterial infections. In this review, we provide an overview of the impact of chronic alcohol consumption on the function of monocytes and macrophages in host defense, tissue repair and inflammation. We then summarize our current understanding of the mechanisms underlying alcohol-induced disruption and examine changes in transcriptome and epigenome of monocytes and mcrophages. Overall, chronic alcohol consumption leads to hyper-inflammation concomitant with decreased microbial and wound healing responses by monocytes/macrophages due to a rewiring of the epigentic and transcriptional landscape. However, in advanced alcoholic liver disease, myeloid cells become immunosuppressed as a response to the surrounding hyper-inflammatory milieu. Therefore, the effect of chronic alcohol on the inflammatory response depends on disease state and the immune cell population.
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17
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Wang C, Ma C, Gong L, Guo Y, Fu K, Zhang Y, Zhou H, Li Y. Macrophage Polarization and Its Role in Liver Disease. Front Immunol 2022; 12:803037. [PMID: 34970275 PMCID: PMC8712501 DOI: 10.3389/fimmu.2021.803037] [Citation(s) in RCA: 205] [Impact Index Per Article: 102.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Macrophages are important immune cells in innate immunity, and have remarkable heterogeneity and polarization. Under pathological conditions, in addition to the resident macrophages, other macrophages are also recruited to the diseased tissues, and polarize to various phenotypes (mainly M1 and M2) under the stimulation of various factors in the microenvironment, thus playing different roles and functions. Liver diseases are hepatic pathological changes caused by a variety of pathogenic factors (viruses, alcohol, drugs, etc.), including acute liver injury, viral hepatitis, alcoholic liver disease, metabolic-associated fatty liver disease, liver fibrosis, and hepatocellular carcinoma. Recent studies have shown that macrophage polarization plays an important role in the initiation and development of liver diseases. However, because both macrophage polarization and the pathogenesis of liver diseases are complex, the role and mechanism of macrophage polarization in liver diseases need to be further clarified. Therefore, the origin of hepatic macrophages, and the phenotypes and mechanisms of macrophage polarization are reviewed first in this paper. It is found that macrophage polarization involves several molecular mechanisms, mainly including TLR4/NF-κB, JAK/STATs, TGF-β/Smads, PPARγ, Notch, and miRNA signaling pathways. In addition, this paper also expounds the role and mechanism of macrophage polarization in various liver diseases, which aims to provide references for further research of macrophage polarization in liver diseases, contributing to the therapeutic strategy of ameliorating liver diseases by modulating macrophage polarization.
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Affiliation(s)
- Cheng Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lihong Gong
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuqin Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ke Fu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yafang Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Honglin Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yunxia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Maurya M, Barthwal MK. MicroRNA-99a: a potential double-edged sword targeting macrophage inflammation and metabolism. Cell Mol Immunol 2021; 18:2290-2292. [PMID: 34381178 DOI: 10.1038/s41423-021-00745-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 07/07/2021] [Indexed: 12/29/2022] Open
Affiliation(s)
- Mohita Maurya
- Department of Pharmacology, Counsil of Scientific and Industrial Research-Central Drug Research Institution, Lucknow, India
| | - Manoj Kumar Barthwal
- Department of Pharmacology, Counsil of Scientific and Industrial Research-Central Drug Research Institution, Lucknow, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.
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Fan X, Wu J, Poulsen KL, Kim A, Wu X, Huang E, Miyata T, Sanz‐Garcia C, Nagy LE. Identification of a MicroRNA-E3 Ubiquitin Ligase Regulatory Network for Hepatocyte Death in Alcohol-Associated Hepatitis. Hepatol Commun 2021; 5:830-845. [PMID: 34027272 PMCID: PMC8122386 DOI: 10.1002/hep4.1677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 12/21/2020] [Accepted: 01/07/2021] [Indexed: 01/09/2023] Open
Abstract
We aimed to identify a microRNA (miRNA)-E3 ubiquitin ligase regulatory network for protein substrates enriched in cell death pathways and investigate the underlying molecular mechanisms in alcohol-associated hepatitis (AH). An miRNA-E3 ubiquitin ligase regulatory network for protein substrates enriched in cell death pathways was constructed using integrated bioinformatics analysis. Differentially expressed hub miRNAs (GSE59492) and their validated miRNA target genes (GSE28619) were identified in the liver of patients with AH compared with healthy controls. Liver samples from patients with AH and healthy individuals and mice exposed to Gao-binge (acute on chronic) ethanol were used for experimental validation. Using hub miRNAs identified by weighted correlation network analysis, a miRNA-E3 ubiquitin ligase regulatory network was established based on 17 miRNAs and 7 E3 ligase genes targeted by these miRNAs that were down-regulated in AH. Among the miRNAs in this regulatory network, miR-150-5p was the only miRNA regulating the E3 ligase cytokine-inducible SH2 containing protein (CISH), the E3 ligase that regulates the largest number of substrates among all E3 ligase family members. Therefore, the CISH regulatory pathway for ubiquitinated substrates was selected for subsequent experimental validation. Consistent with the bioinformatics analysis results, expression of miR-150-5p was markedly increased, while CISH was decreased, in the livers of patients with AH and mice exposed to Gao-binge ethanol. Moreover, ubiquitination of Fas-associated protein with death domain, a predicted CISH substrate involved in the regulation of programmed cell death, was reduced in livers from mice after Gao-binge ethanol. Conclusion: Identification of the miRNA-E3 ubiquitin ligase regulatory network for protein substrates enriched in the cell death pathways provides insights into the molecular mechanisms contributing to hepatocyte death in AH.
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Affiliation(s)
- Xiude Fan
- Department of Inflammation and ImmunityCleveland ClinicClevelandOHUSA
- Department of Infectious DiseasesFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxi ProvinceChina
| | - Jianguo Wu
- Department of Inflammation and ImmunityCleveland ClinicClevelandOHUSA
| | - Kyle L. Poulsen
- Department of Inflammation and ImmunityCleveland ClinicClevelandOHUSA
| | - Adam Kim
- Department of Inflammation and ImmunityCleveland ClinicClevelandOHUSA
| | - Xiaoqin Wu
- Department of Inflammation and ImmunityCleveland ClinicClevelandOHUSA
| | - Emily Huang
- Department of Inflammation and ImmunityCleveland ClinicClevelandOHUSA
| | - Tatsunori Miyata
- Department of Inflammation and ImmunityCleveland ClinicClevelandOHUSA
| | | | - Laura E. Nagy
- Department of Inflammation and ImmunityCleveland ClinicClevelandOHUSA
- Department of Gastroenterology and HepatologyCleveland ClinicClevelandOHUSA
- Department of Molecular MedicineCase Western Reserve UniversityClevelandOHUSA
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20
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Spiers JG, Steiger N, Khadka A, Juliani J, Hill AF, Lavidis NA, Anderson ST, Cortina Chen HJ. Repeated acute stress modulates hepatic inflammation and markers of macrophage polarisation in the rat. Biochimie 2021; 180:30-42. [PMID: 33122103 DOI: 10.1016/j.biochi.2020.10.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 09/29/2020] [Accepted: 10/24/2020] [Indexed: 12/24/2022]
Abstract
Bidirectional communication between the neuroendocrine stress and immune systems permits classically anti-inflammatory glucocorticoids to exert pro-inflammatory effects in specific cells and tissues. Liver macrophages/Kupffer cells play a crucial role in initiating inflammatory cascades mediated by the release of pro-inflammatory cytokines following tissue injury. However, the effects of repeated acute psychological stress on hepatic inflammatory phenotype and macrophage activation state remains poorly understood. We have utilised a model of repeated acute stress in rodents to observe the changes in hepatic inflammatory phenotype, including anti-inflammatory vitamin D status, in addition to examining markers of classically and alternatively-activated macrophages. Male Wistar rats were subjected to control conditions or 6 h of restraint stress applied for 1 or 3 days (n = 8 per group) after which plasma concentrations of stress hormone, enzymes associated with liver damage, and vitamin D status were examined, in addition to hepatic expression of pro- and anti-inflammatory markers. Stress increased glucocorticoids and active vitamin D levels in addition to expression of glucocorticoid alpha/beta receptor, whilst changes in circulating hepatic enzymes indicated sustained liver damage. A pro-inflammatory response was observed in liver tissues following stress, and inducible nitric oxide synthase being observed within hepatic macrophage/Kupffer cells. Together, this suggests that stress preferentially induces a pro-inflammatory response in the liver.
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Affiliation(s)
- Jereme G Spiers
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia; Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, 3083, Australia.
| | - Natasha Steiger
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Arun Khadka
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, 3083, Australia
| | - Juliani Juliani
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, 3083, Australia
| | - Andrew F Hill
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, 3083, Australia
| | - Nickolas A Lavidis
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Stephen T Anderson
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Hsiao-Jou Cortina Chen
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia; WT-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, United Kingdom.
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21
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cAMP Signaling in Pathobiology of Alcohol Associated Liver Disease. Biomolecules 2020; 10:biom10101433. [PMID: 33050657 PMCID: PMC7600246 DOI: 10.3390/biom10101433] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 02/07/2023] Open
Abstract
The importance of cyclic adenosine monophosphate (cAMP) in cellular responses to extracellular signals is well established. Many years after discovery, our understanding of the intricacy of cAMP signaling has improved dramatically. Multiple layers of regulation exist to ensure the specificity of cellular cAMP signaling. Hence, disturbances in cAMP homeostasis could arise at multiple levels, from changes in G protein coupled receptors and production of cAMP to the rate of degradation by phosphodiesterases. cAMP signaling plays critical roles in metabolism, inflammation and development of fibrosis in several tissues. Alcohol-associated liver disease (ALD) is a multifactorial condition ranging from a simple steatosis to steatohepatitis and fibrosis and ultimately cirrhosis, which might lead to hepatocellular cancer. To date, there is no FDA-approved therapy for ALD. Hence, identifying the targets for the treatment of ALD is an important undertaking. Several human studies have reported the changes in cAMP homeostasis in relation to alcohol use disorders. cAMP signaling has also been extensively studied in in vitro and in vivo models of ALD. This review focuses on the role of cAMP in the pathobiology of ALD with emphasis on the therapeutic potential of targeting cAMP signaling for the treatment of various stages of ALD.
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Kim A, Bellar A, McMullen MR, Li X, Nagy LE. Functionally Diverse Inflammatory Responses in Peripheral and Liver Monocytes in Alcohol-Associated Hepatitis. Hepatol Commun 2020; 4:1459-1476. [PMID: 33024916 PMCID: PMC7527760 DOI: 10.1002/hep4.1563] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/22/2020] [Accepted: 06/16/2020] [Indexed: 12/11/2022] Open
Abstract
Alcohol-associated hepatitis (AH) is an acute inflammatory disease in which gut-microbial byproducts enter circulation and peripheral immune cells infiltrate the liver, leading to nonresolving inflammation and injury. Single-cell RNA sequencing of peripheral blood mononuclear cells isolated from patients with AH and healthy controls paired with lipopolysaccharide (LPS) challenge revealed how diverse monocyte responses are divided among individual cells and change in disease. After LPS challenge, one monocyte subtype expressed pro-inflammatory genes in both disease and healthy controls, while another monocyte subtype was anti-inflammatory in healthy controls but switched to pro-inflammatory in AH. Numerous immune genes are clustered within genomic cassettes, including chemokines and C-type lectin receptors (CTRs). CTRs sense byproducts of diverse microbial and host origin. Single-cell data revealed correlated expression of genes within cassettes, thus further diversifying different monocyte responses to individual cells. Monocyte up-regulation of CTRs in response to LPS caused hypersensitivity to diverse microbial and host-derived byproducts, indicating a secondary immune surveillance pathway up-regulated in a subset of cells by a closely associated genomic cassette. Finally, expression of CTR genes was higher in livers of patients with severe AH, but not other chronic liver diseases, implicating secondary immune surveillance in nonresolving inflammation in severe AH.
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Affiliation(s)
- Adam Kim
- Northern Ohio Alcohol CenterCenter for Liver Disease ResearchDepartment of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
| | - Annette Bellar
- Northern Ohio Alcohol CenterCenter for Liver Disease ResearchDepartment of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
| | - Megan R. McMullen
- Northern Ohio Alcohol CenterCenter for Liver Disease ResearchDepartment of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
| | - Xiaoxia Li
- Northern Ohio Alcohol CenterCenter for Liver Disease ResearchDepartment of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
| | - Laura E. Nagy
- Northern Ohio Alcohol CenterCenter for Liver Disease ResearchDepartment of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
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Rong J, Xu L, Hu Y, Liu F, Yu Y, Guo H, Ni X, Huang Y, Zhao L, Wang Z. Inhibition of let-7b-5p contributes to an anti-tumorigenic macrophage phenotype through the SOCS1/STAT pathway in prostate cancer. Cancer Cell Int 2020; 20:470. [PMID: 33005103 PMCID: PMC7526222 DOI: 10.1186/s12935-020-01563-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/17/2020] [Indexed: 12/22/2022] Open
Abstract
Background Dysfunction of microRNAs (miRNAs) is a major cause of aberrant expression of inflammatory cytokines and contributes to macrophage polarization. Proinflammatory M1 macrophages promote T helper (Th) 1 responses and show tumoricidal activity, whereas M2 macrophages display regulatory functions in tissue repair and remodeling and promote Th2 immune responses. Previous studies have shown that miRNA let-7 is associated with cellular differentiation and that the expression of let-7b-5p is significantly augmented in M2 macrophages. However, the mechanism by which let-7b-5p regulates macrophage differentiation in prostate cancer (PCa) remains largely unknown. Methods Human macrophages were induced by blood monocytes from healthy male donors, and M1 macrophages were polarized by stimulating them overnight with 100 ng/ml of lipopolysaccharides and 100 ng/ml of IFN-γ. Conditioned medium from PC-3 cells was used to induce prostatic macrophages (M-CMs) in vitro, and we then transfected let-7b-5p mimics or inhibitors into M1 and M-CMs for 72 h. The expression of cluster of differentiation 206 (CD206) in each group was detected with the High-Throughput Connotation of Imaging System. We used quantitative real-time polymerase chain reaction (qRT-PCR) to examine the expression of the inflammatory cytokines IL-10, IL-12, IL-13, TNF-alpha, and let-7b in macrophages. SOCS1 protein levels were evaluated by ELISA, and the phosphorylation difference in STAT family member proteins was analyzed using CST signal-pathway chip. Phagocytosis by macrophages and the effect of macrophages on the proliferation of prostate cancer PC-3 cells were evaluated with phagocytosis assay or the Cell Counting Kit-8 (CCK-8) and colony formation assay. The relationship between SOCS1 and let-7b-5p was confirmed with a dual-luciferase reporter. Results The expression of cluster of differentiation 206 (CD206, a M2-like macrophage surface molecule) was significantly increased in M1 macrophages treated with let-7b-5p mimics, while CD206 expression was decreased in M-CMs treated with let-7b-5p inhibitors. Overexpression or knockdown of let-7b-5p significantly affected the expression of inflammatory factors in macrophages-including interleukin 10 (IL-10), IL-12, IL-13, and tumor necrosis factor alpha. Let-7b-5p downregulated the expression of suppressor of cytokine signaling 1 (SOCS1) and increased the phosphorylation of signal transducer and activator of transcription 1 (STAT1), STAT3, and STAT5a proteins in M-CMs and M1 macrophages with let-7b-5p mimics relative to the other groups. In addition, with the elevated expression of let-7b-5p, the phagocytosis by macrophages showed a commensurate and significant decrease. As a result, M-CMs treated with let-7b-5p inhibitors reduced the proliferation of PC-3 PCa cells. Conclusions Collectively, these data indicated that let-7b-5p may regulate M2 polarization through the SOCS1/STAT pathway and that reversal of M2 differentiation by let-7b-5p inhibitors enhanced macrophage phagocytosis, ultimately inhibiting the proliferation of PCa cells.
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Affiliation(s)
- Jiping Rong
- Jiangxi Academy of Medical Sciences, and Jiangxi Provincial Key Laboratory of Immunotherapy, Nanchang, China
| | - Lu Xu
- Medical College of Nanchang University, Nanchang, China
| | - Yinying Hu
- Jiangxi Academy of Medical Sciences, and Jiangxi Provincial Key Laboratory of Immunotherapy, Nanchang, China
| | - Fan Liu
- Medical College of Nanchang University, Nanchang, China
| | - Yanrong Yu
- Jiangxi Academy of Medical Sciences, and Jiangxi Provincial Key Laboratory of Immunotherapy, Nanchang, China
| | - Hongyan Guo
- Jiangxi Academy of Medical Sciences, and Jiangxi Provincial Key Laboratory of Immunotherapy, Nanchang, China
| | - Xudong Ni
- Medical College of Nanchang University, Nanchang, China
| | - Yanqin Huang
- Jiangxi Academy of Medical Sciences, and Jiangxi Provincial Key Laboratory of Immunotherapy, Nanchang, China
| | - Lin Zhao
- Jiangxi Academy of Medical Sciences, and Jiangxi Provincial Key Laboratory of Immunotherapy, Nanchang, China
| | - Zhigang Wang
- Jiangxi Academy of Medical Sciences, and Jiangxi Provincial Key Laboratory of Immunotherapy, Nanchang, China
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TMEM88 modulates the secretion of inflammatory factors by regulating YAP signaling pathway in alcoholic liver disease. Inflamm Res 2020; 69:789-800. [DOI: 10.1007/s00011-020-01360-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 05/06/2020] [Accepted: 05/14/2020] [Indexed: 12/13/2022] Open
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Sanz‐Garcia C, McMullen MR, Chattopadhyay S, Roychowdhury S, Sen G, Nagy LE. Nontranscriptional Activity of Interferon Regulatory Factor 3 Protects Mice From High-Fat Diet-Induced Liver Injury. Hepatol Commun 2019; 3:1626-1641. [PMID: 31832571 PMCID: PMC6887899 DOI: 10.1002/hep4.1441] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 09/26/2019] [Indexed: 12/17/2022] Open
Abstract
Interferon regulatory factor 3 (IRF3) has both transcriptional and nontranscriptional functions. Transcriptional activity is dependent on serine phosphorylation of IRF3, while transcription-independent IRF3-mediated apoptosis requires ubiquitination. IRF3 also binds to inhibitor of nuclear factor kappa B kinase (IKKβ) in the cytosol, restricting nuclear translocation of p65. IRF3-deficient mice are highly sensitive to high-fat diet (HFD)-induced liver injury; however, it is not known if transcriptional and/or nontranscriptional activity of IRF3 confers protection. Using a mouse model only expressing nontranscriptional functions of IRF3 (Irf3 S1/S1), we tested the hypothesis that nontranscriptional activity of IRF3 protects mice from HFD-induced liver injury. C57BL/6, Irf3 -/-, and Irf3 S1/S1 mice were fed an HFD for 12 weeks. In C57BL/6 mice, the HFD increased expression of interferon (IFN)-dependent genes, despite a decrease in IRF3 protein in the liver. The HFD had no impact on IFN-dependent gene expression Irf3 -/- or Irf3 S1/S1 mice, both lacking IRF3 transcriptional activity. Liver injury, apoptosis, and fibrosis were exacerbated in Irf3 -/- compared to C57BL/6 mice following the HFD; this increase was ameliorated in Irf3 S1/S1 mice. Similarly, expression of inflammatory cytokines as well as numbers of neutrophils and infiltrating monocytes was increased in Irf3 -/- mice compared to C57BL/6 and Irf3 S1/S1 mice. While the HFD increased the ubiquitination of IRF3, a response associated with IRF3-mediated apoptosis, in Irf3 S1/S1 mice, protection from liver injury was not due to differences in apoptosis of hepatocytes or immune cells. Instead, protection from HFD-induced liver injury in Irf3 S1/S1 mice was primarily associated with retardation of nuclear translocation of p65 and decreased expression of nuclear factor kappa B (NFκB)-dependent inflammatory cytokines. Conclusion: Taken together, these data identify important contributions of the nontranscriptional function of IRF3, likely by reducing NFκB signaling, in dampening the hepatic inflammatory environment in response to an HFD.
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Affiliation(s)
- Carlos Sanz‐Garcia
- Department of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
| | - Megan R. McMullen
- Department of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
| | - Saurabh Chattopadhyay
- Department of Medical Microbiology and ImmunologyUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Sanjoy Roychowdhury
- Department of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
- Department of Molecular MedicineCase Western Reserve UniversityClevelandOH
| | - Ganes Sen
- Department of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
- Department of Molecular MedicineCase Western Reserve UniversityClevelandOH
| | - Laura E. Nagy
- Department of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOH
- Department of Molecular MedicineCase Western Reserve UniversityClevelandOH
- Gastroenterology and HepatologyLerner Research InstituteCleveland ClinicClevelandOH
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