1
|
Vijayakumar P, Mishra A, Deka RP, Pinto SM, Subbannayya Y, Sood R, Prasad TSK, Raut AA. Proteomics Analysis of Duck Lung Tissues in Response to Highly Pathogenic Avian Influenza Virus. Microorganisms 2024; 12:1288. [PMID: 39065055 PMCID: PMC11278641 DOI: 10.3390/microorganisms12071288] [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: 04/07/2024] [Revised: 05/16/2024] [Accepted: 05/23/2024] [Indexed: 07/28/2024] Open
Abstract
Domestic ducks (Anas platyrhynchos domesticus) are resistant to most of the highly pathogenic avian influenza virus (HPAIV) infections. In this study, we characterized the lung proteome and phosphoproteome of ducks infected with the HPAI H5N1 virus (A/duck/India/02CA10/2011/Agartala) at 12 h, 48 h, and 5 days post-infection. A total of 2082 proteins were differentially expressed and 320 phosphorylation sites mapping to 199 phosphopeptides, corresponding to 129 proteins were identified. The functional annotation of the proteome data analysis revealed the activation of the RIG-I-like receptor and Jak-STAT signaling pathways, which led to the induction of interferon-stimulated gene (ISG) expression. The pathway analysis of the phosphoproteome datasets also confirmed the activation of RIG-I, Jak-STAT signaling, NF-kappa B signaling, and MAPK signaling pathways in the lung tissues. The induction of ISG proteins (STAT1, STAT3, STAT5B, STAT6, IFIT5, and PKR) established a protective anti-viral immune response in duck lung tissue. Further, the protein-protein interaction network analysis identified proteins like AKT1, STAT3, JAK2, RAC1, STAT1, PTPN11, RPS27A, NFKB1, and MAPK1 as the main hub proteins that might play important roles in disease progression in ducks. Together, the functional annotation of the proteome and phosphoproteome datasets revealed the molecular basis of the disease progression and disease resistance mechanism in ducks infected with the HPAI H5N1 virus.
Collapse
Affiliation(s)
- Periyasamy Vijayakumar
- Pathogenomics Laboratory, WOAH Reference Lab for Avian Influenza, ICAR—National Institute of High Security Animal Diseases, Bhopal 462022, Madhya Pradesh, India; (P.V.); (A.M.); (R.S.)
- Veterinary College and Research Institute, Tamil Nadu Veterinary and Animal Sciences University, Salem 600051, Tamil Nadu, India
| | - Anamika Mishra
- Pathogenomics Laboratory, WOAH Reference Lab for Avian Influenza, ICAR—National Institute of High Security Animal Diseases, Bhopal 462022, Madhya Pradesh, India; (P.V.); (A.M.); (R.S.)
| | - Ram Pratim Deka
- International Livestock Research Institute, National Agricultural Science Complex, Pusa 110012, New Delhi, India;
| | - Sneha M. Pinto
- Centre for Systems Biology and Molecular Medicine, Yenepoya (Deemed to be University), Mangalore 575018, Karnataka, India; (S.M.P.); (Y.S.)
- School of Biosciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Yashwanth Subbannayya
- Centre for Systems Biology and Molecular Medicine, Yenepoya (Deemed to be University), Mangalore 575018, Karnataka, India; (S.M.P.); (Y.S.)
- School of Biosciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Richa Sood
- Pathogenomics Laboratory, WOAH Reference Lab for Avian Influenza, ICAR—National Institute of High Security Animal Diseases, Bhopal 462022, Madhya Pradesh, India; (P.V.); (A.M.); (R.S.)
| | | | - Ashwin Ashok Raut
- Pathogenomics Laboratory, WOAH Reference Lab for Avian Influenza, ICAR—National Institute of High Security Animal Diseases, Bhopal 462022, Madhya Pradesh, India; (P.V.); (A.M.); (R.S.)
| |
Collapse
|
2
|
Gaggioli MR, Jones AG, Panagi I, Washington EJ, Loney RE, Muench JH, Brennan RG, Thurston TLM, Ko DC. A single amino acid in the Salmonella effector SarA/SteE triggers supraphysiological activation of STAT3 for anti-inflammatory target gene expression. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.14.580367. [PMID: 38405869 PMCID: PMC10888966 DOI: 10.1101/2024.02.14.580367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Non-typhoidal Salmonella enterica cause an estimated 1 million cases of gastroenteritis annually in the United States. These serovars use secreted protein effectors to mimic and reprogram host cellular functions. We previously discovered that the secreted effector SarA (Salmonella anti-inflammatory response activator; also known as SteE) was required for increased intracellular replication of S. Typhimurium and production of the anti-inflammatory cytokine interleukin-10 (IL-10). SarA facilitates phosphorylation of STAT3 through a region of homology with the host cytokine receptor gp130. Here, we demonstrate that a single amino acid difference between SarA and gp130 is critical for the anti-inflammatory bias of SarA-STAT3 signaling. An isoleucine at the pY+1 position of the YxxQ motif in SarA (which binds the SH2 domain in STAT3) causes increased STAT3 phosphorylation and expression of anti-inflammatory target genes. This isoleucine, completely conserved in ~4000 Salmonella isolates, renders SarA a better substrate for tyrosine phosphorylation by GSK-3. GSK-3 is canonically a serine/threonine kinase that nonetheless undergoes tyrosine autophosphorylation at a motif that has an invariant isoleucine at the pY+1 position. Our results provide a molecular basis for how a Salmonella secreted effector achieves supraphysiological levels of STAT3 activation to control host genes during infection.
Collapse
Affiliation(s)
- Margaret R. Gaggioli
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA
| | - Angela G. Jones
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA
| | - Ioanna Panagi
- Department of Infectious Disease, Centre for Bacterial Resistance Biology, Imperial College London, London, UK
| | - Erica J. Washington
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA
- Department of Biochemistry, School of Medicine, Duke University, Durham, NC 27710, USA
| | - Rachel E. Loney
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA
| | | | - Richard G. Brennan
- Department of Biochemistry, School of Medicine, Duke University, Durham, NC 27710, USA
| | - Teresa L. M. Thurston
- Department of Infectious Disease, Centre for Bacterial Resistance Biology, Imperial College London, London, UK
| | - Dennis C. Ko
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA
- Division of Infectious Diseases, Department of Medicine, School of Medicine, Duke University, Durham, NC 27710, USA
- Lead contact
| |
Collapse
|
3
|
Nelson D, Thompson KJ, Wang L, Wang Z, Eberts P, Azarin SM, Kalari KR, Kandimalla KK. Pericyte Control of Gene Expression in the Blood-Brain Barrier Endothelium: Implications for Alzheimer's Disease. J Alzheimers Dis 2024; 99:S281-S297. [PMID: 38393902 DOI: 10.3233/jad-230907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Background A strong body of evidence suggests that cerebrovascular pathologies augment the onset and progression of Alzheimer's disease (AD). One distinctive aspect of this cerebrovascular dysfunction is the degeneration of brain pericytes-often overlooked supporting cells of blood-brain barrier endothelium. Objective The current study investigates the influence of pericytes on gene and protein expressions in the blood-brain barrier endothelium, which is expected to facilitate the identification of pathophysiological pathways that are triggered by pericyte loss and lead to blood-brain barrier dysfunction in AD. Methods Bioinformatics analysis was conducted on the RNA-Seq expression counts matrix (GSE144474), which compared solo-cultured human blood-brain barrier endothelial cells against endothelial cells co-cultured with human brain pericytes in a non-contact model. We constructed a similar cell culture model to verify protein expression using western blots. Results The insulin resistance and ferroptosis pathways were found to be enriched. Western blots of the insulin receptor and heme oxygenase expressions were consistent with those observed in RNA-Seq data. Additionally, we observed more than 5-fold upregulation of several genes associated with neuroprotection, including insulin-like growth factor 2 and brain-derived neurotrophic factor. Conclusions Results suggest that pericyte influence on blood-brain barrier endothelial gene expression confers protection from insulin resistance, iron accumulation, oxidative stress, and amyloid deposition. Since these are conditions associated with AD pathophysiology, they imply mechanisms by which pericyte degeneration could contribute to disease progression.
Collapse
Affiliation(s)
- Doug Nelson
- Department of Pharmaceutics and Brain Barriers Research Center, College of Pharmacy, University of Minnesota, Minneapolis, MN, USA
| | - Kevin J Thompson
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Lushan Wang
- Department of Pharmaceutics and Brain Barriers Research Center, College of Pharmacy, University of Minnesota, Minneapolis, MN, USA
| | - Zengtao Wang
- Department of Pharmaceutics and Brain Barriers Research Center, College of Pharmacy, University of Minnesota, Minneapolis, MN, USA
| | - Paulina Eberts
- Department of Chemical Engineering and Materials Science, College of Science and Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Samira M Azarin
- Department of Chemical Engineering and Materials Science, College of Science and Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Krishna R Kalari
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Karunya K Kandimalla
- Department of Pharmaceutics and Brain Barriers Research Center, College of Pharmacy, University of Minnesota, Minneapolis, MN, USA
| |
Collapse
|
4
|
Yao Y, Li J, Zhou Y, Wang S, Zhang Z, Jiang Q, Li K. Macrophage/microglia polarization for the treatment of diabetic retinopathy. Front Endocrinol (Lausanne) 2023; 14:1276225. [PMID: 37842315 PMCID: PMC10569308 DOI: 10.3389/fendo.2023.1276225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/07/2023] [Indexed: 10/17/2023] Open
Abstract
Macrophages/microglia are immune system defense and homeostatic cells that develop from bone marrow progenitor cells. According to the different phenotypes and immune responses of macrophages (Th1 and Th2), the two primary categories of polarized macrophages/microglia are those conventionally activated (M1) and alternatively activated (M2). Macrophage/microglial polarization is a key regulating factor in the development of inflammatory disorders, cancers, metabolic disturbances, and neural degeneration. Macrophage/microglial polarization is involved in inflammation, oxidative stress, pathological angiogenesis, and tissue healing processes in ocular diseases, particularly in diabetic retinopathy (DR). The functional phenotypes of macrophages/microglia affect disease progression and prognosis, and thus regulate the polarization or functional phenotype of microglia at different DR stages, which may offer new concepts for individualized therapy of DR. This review summarizes the involvement of macrophage/microglia polarization in physiological situations and in the pathological process of DR, and discusses the promising role of polarization in personalized treatment of DR.
Collapse
Affiliation(s)
- Yujia Yao
- Department of Ophthalmology, The Affiliated Eye Hospital of Nanjing Medical University, Nanjing, China
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Jiajun Li
- Department of Ophthalmology, The Affiliated Eye Hospital of Nanjing Medical University, Nanjing, China
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Yunfan Zhou
- Department of Ophthalmology, The Affiliated Eye Hospital of Nanjing Medical University, Nanjing, China
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Suyu Wang
- Department of Ophthalmology, The Affiliated Eye Hospital of Nanjing Medical University, Nanjing, China
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Ziran Zhang
- Department of Ophthalmology, The Affiliated Eye Hospital of Nanjing Medical University, Nanjing, China
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Qin Jiang
- Department of Ophthalmology, The Affiliated Eye Hospital of Nanjing Medical University, Nanjing, China
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Keran Li
- Department of Ophthalmology, The Affiliated Eye Hospital of Nanjing Medical University, Nanjing, China
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| |
Collapse
|
5
|
Huang J, Jiang Y, Ji R, Jia Y, Wang S, Zhou Z, Wang S, Wang J, Yang Q, Bai H, Zhu X, Jiang B, Ben J, Zhang H, Li X, Chen Q. Macrophage scavenger receptor A1 antagonizes abdominal aortic aneurysm via upregulating IRG1. Biochem Pharmacol 2023; 213:115631. [PMID: 37257722 DOI: 10.1016/j.bcp.2023.115631] [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: 03/17/2023] [Revised: 05/17/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
AIMS Abdominal aortic aneurysm (AAA) is a common, usually asymptomatic disease with high mortality and limited therapeutic options. Extensive extracellular matrix (ECM) fragmentation and transmural inflammation act as major pathological processes of AAA. However, the underlying regulatory mechanisms remain incompletely understood. Herein, we aimed to investigate the role of scavenger receptor A1 (SR-A1), a key pattern recognition receptor modulating macrophage activity, in pathogenesis of AAA. METHODS AND RESULTS The AAA model was generated by administration of angiotensin II (Ang II) into apolipoprotein E knockout mice or peri-arterial application of calcium phosphate in C57BJ/6L mice. We found that SR-A1 was markedly down-regulated in the macrophages isolated from murine AAA aortas. Global or myeloid-specific ablation of SR-A1 aggravated vascular inflammation, loss of vascular smooth muscle cells and degradation of the extracellular matrix. These effects of SR-A1 deficiency on AAA development were mediated by suppressed immunoresponsive gene 1 (IRG1) and increased inflammatory response in macrophages. Mechanically, binding of SR-A1 with Lyn led to STAT3 phosphorylation and translocation into the nucleus, in which STAT3 promoted IRG1 transcription through directly binding to its promoter. Restoration of macrophage SR-A1 in SR-A1-deficient mice by bone marrow transplantation or administration of 4-octyl itaconate, the derivate of IRG1 product itaconate, could relieve murine AAA. CONCLUSION Our study reveals a protective effect of macrophage SR-A1-STAT3-IRG1 axis against aortic aneurysm formation via inhibiting inflammation.
Collapse
Affiliation(s)
- Jianan Huang
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Yunlong Jiang
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Ruiyuan Ji
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Yutian Jia
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Saiya Wang
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Zhongqiu Zhou
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Siying Wang
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Jie Wang
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Qing Yang
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Hui Bai
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Xudong Zhu
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Bin Jiang
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Jingjing Ben
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Hanwen Zhang
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Xiaoyu Li
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China.
| | - Qi Chen
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Molecular Intervention, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China.
| |
Collapse
|
6
|
Assis DV, Campos ACP, Paschoa AFN, Santos TF, Fonoff ET, Pagano RL. Systemic and Peripheral Mechanisms of Cortical Stimulation-Induced Analgesia and Refractoriness in a Rat Model of Neuropathic Pain. Int J Mol Sci 2023; 24:ijms24097796. [PMID: 37175503 PMCID: PMC10177944 DOI: 10.3390/ijms24097796] [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: 02/09/2023] [Revised: 04/13/2023] [Accepted: 04/16/2023] [Indexed: 05/15/2023] Open
Abstract
Epidural motor cortex stimulation (MCS) is an effective treatment for refractory neuropathic pain; however, some individuals are unresponsive. In this study, we correlated the effectiveness of MCS and refractoriness with the expression of cytokines, neurotrophins, and nociceptive mediators in the dorsal root ganglion (DRG), sciatic nerve, and plasma of rats with sciatic neuropathy. MCS inhibited hyperalgesia and allodynia in two-thirds of the animals (responsive group), and one-third did not respond (refractory group). Chronic constriction injury (CCI) increased IL-1β in the nerve and DRG, inhibited IL-4, IL-10, and IL-17A in the nerve, decreased β-endorphin, and enhanced substance P in the plasma, compared to the control. Responsive animals showed decreased NGF and increased IL-6 in the nerve, accompanied by restoration of local IL-10 and IL-17A and systemic β-endorphin. Refractory animals showed increased TNF-α and decreased IFNγ in the nerve, along with decreased TNF-α and IL-17A in the DRG, maintaining low levels of systemic β-endorphin. Our findings suggest that the effectiveness of MCS depends on local control of inflammatory and neurotrophic changes, accompanied by recovery of the opioidergic system observed in neuropathic conditions. So, understanding the refractoriness to MCS may guide an improvement in the efficacy of the technique, thus benefiting patients with persistent neuropathic pain.
Collapse
Affiliation(s)
- Danielle V Assis
- Laboratory of Neuroscience, Hospital Sírio-Libanês, São Paulo 01308-060, SP, Brazil
| | | | - Amanda F N Paschoa
- Laboratory of Neuroscience, Hospital Sírio-Libanês, São Paulo 01308-060, SP, Brazil
| | - Talita F Santos
- Laboratory of Neuroscience, Hospital Sírio-Libanês, São Paulo 01308-060, SP, Brazil
| | - Erich T Fonoff
- Division of Functional Neurosurgery, Department of Neurology, University of Sao Paulo Medical School, São Paulo 05402-000, SP, Brazil
| | - Rosana L Pagano
- Laboratory of Neuroscience, Hospital Sírio-Libanês, São Paulo 01308-060, SP, Brazil
| |
Collapse
|
7
|
Sun Q, Zhang J, Wang J, Wang H, Gao Z, Liu H. Janus kinase 1 in Megalobrama amblycephala: Identification, phylogenetic analysis and expression profiling after Aeromonas hydrophila infection. FISH & SHELLFISH IMMUNOLOGY 2023; 135:108620. [PMID: 36841516 DOI: 10.1016/j.fsi.2023.108620] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/07/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Janus kinase 1 (JAK1), a member of the JAK family, plays an essential and non-redundant role in the mammalian immune system. However, the potential role of JAK1 in fish immune response remains largely unclear. In the present study, the JAK1 gene of Megalobrama amblycephala (MamJAK1) was identified and characterized. The open reading frame (ORF) of MamJAK1 was 3462 bp, encoding 1153 amino acids. MamJAK1 consists of four common domains of the JAK family, including B41, SH2, STyrKc (a pseudo kinase domain), and TyrKc (a kinase domain). Phylogenetic analysis showed that JAK1s are divided into two evolutionary clades, one containing fish JAK1s, and the other containing JAK1s from other vertebrates. The results of quantitative real-time PCR (qPCR) showed that in healthy M. amblycephala, MamJAK1 mRNA was highest expressed in blood, followed by spleen, intestine and mid-kidney, and lowly expressed in other tissues including gill, liver, head kidney, muscle, brain and heart. After Aeromonas hydrophila infection, the expression of MamJAK1 mRNA was significantly induced in four selected tissues including spleen, mid-kidney, liver and intestine, reaching a peak at 24 hpi (hour post infection) in spleen and mid-kidney, at 12 hpi in liver and at 4 hpi in intestine, and then the expression level was restricted to control levels at 72 or 120 hpi. In addition, the results of Western blot showed that the phosphorylation level of MamJAK1 protein in spleen and mid-kidney increased significantly after A. hydrophila infection, although MamJAK1 protein did not change obviously. Further, the JAK1 phosphorylation in Ctenopharyngodon idellus kidney (CIK) cells was found to be significantly induced by LPS stimulation and IL-6R over-expression. The results above suggest that MamJAK1 may play an essential role in the immune response against bacterial infection through the IL-6R mediated JAK1/STAT signaling pathway, which further deepen our understanding of JAK1 and provides a potential target for the treatment and prevention of bacterial diseases in teleost.
Collapse
Affiliation(s)
- Qianhui Sun
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education / Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Jian Zhang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education / Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Jixiu Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education / Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Huanling Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education / Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Zexia Gao
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education / Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Hong Liu
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education / Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Hongshan Laboratory, Wuhan, 430070, China.
| |
Collapse
|
8
|
Wu Z, Wang Y, Yan G, Wu C. Eugenol protects chondrocytes and articular cartilage by downregulating the JAK3/STAT4 signaling pathway. J Orthop Res 2023; 41:747-758. [PMID: 35880357 DOI: 10.1002/jor.25420] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/05/2022] [Accepted: 07/23/2022] [Indexed: 02/04/2023]
Abstract
Osteoarthritis (OA) is a chronic degenerative bone and joint disease common in middle-aged and elderly people. Currently, there is no satisfactory pharmacological treatment. Eugenol is a phenolic compound that has been shown to exert biological anti-inflammatory, antioxidant, and antiapoptotic effects in multiple systems and organs of the human body. However, its therapeutic effect on OA is unclear. This study examined the effect of eugenol on OA using an anterior cruciate ligament transection (ACLT) model in mice and its related signaling pathways in interleukin-1β (IL-1β)-stimulated human chondrocytes. A certain concentration of eugenol inhibited the decrease in cell viability induced by IL-1β or carbonyl cyanide 3-chlorophenylhydrazone (CCCP). In vitro, eugenol effectively inhibited CCCP-induced chondrocyte apoptosis and mitochondrial membrane potential changes and inhibited the expressions of ADAMTS4 and MMP13 upregulated by IL-1β. In vivo, ACLT induced destruction of the articular cartilage and subchondral bone of the mouse tibial plateau, while eugenol effectively protected the cartilage and subchondral bone from such damage. At the same time, eugenol reduced the ACLT-induced upregulation of ADAMTS4 and MMP13 and the downregulation of type II collagen (COLII) and aggrecan in the mouse knee cartilage. Eugenol also inhibited the increased expression of cartilage metabolism signaling molecules such as C-telopeptides of COLII (CTX-II) in ACLT-induced mouse serum. Consistent with the specific changes in the messenger RNA chip, eugenol inhibited the phosphorylation of JAK3 and STAT4 induced by IL-1β. Together, these results suggest eugenol as an effective new drug for the prevention and treatment of OA.
Collapse
Affiliation(s)
- Zhimin Wu
- Beijing Laboratory of Biomedical Materials, Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing, China
| | - Ying Wang
- Beijing Laboratory of Biomedical Materials, Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing, China
| | - Guoqiang Yan
- Beijing Laboratory of Biomedical Materials, Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing, China
| | - Chengai Wu
- Beijing Laboratory of Biomedical Materials, Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing, China
| |
Collapse
|
9
|
Jang M, Choi JH, Jang DS, Cho IH. Micrandilactone C, a Nortriterpenoid Isolated from Roots of Schisandra chinensis, Ameliorates Huntington's Disease by Inhibiting Microglial STAT3 Pathways. Cells 2023; 12:cells12050786. [PMID: 36899922 PMCID: PMC10000367 DOI: 10.3390/cells12050786] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 02/21/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
Huntington's disease (HD) is a neurodegenerative disease that affects the motor control system of the brain. Its pathological mechanism and therapeutic strategies have not been fully elucidated yet. The neuroprotective value of micrandilactone C (MC), a new schiartane nortriterpenoid isolated from the roots of Schisandra chinensis, is not well-known either. Here, the neuroprotective effects of MC were demonstrated in 3-nitropropionic acid (3-NPA)-treated animal and cell culture models of HD. MC mitigated neurological scores and lethality following 3-NPA treatment, which is associated with decreases in the formation of a lesion area, neuronal death/apoptosis, microglial migration/activation, and mRNA or protein expression of inflammatory mediators in the striatum. MC also inhibited the activation of the signal transducer and activator of transcription 3 (STAT3) in the striatum and microglia after 3-NPA treatment. As expected, decreases in inflammation and STAT3-activation were reproduced in a conditioned medium of lipopolysaccharide-stimulated BV2 cells pretreated with MC. The conditioned medium blocked the reduction in NeuN expression and the enhancement of mutant huntingtin expression in STHdhQ111/Q111 cells. Taken together, MC might alleviate behavioral dysfunction, striatal degeneration, and immune response by inhibiting microglial STAT3 signaling in animal and cell culture models for HD. Thus, MC may be a potential therapeutic strategy for HD.
Collapse
Affiliation(s)
- Minhee Jang
- Department of Convergence Medical Science, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jong Hee Choi
- Department of Convergence Medical Science, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Dae Sik Jang
- Department of Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
- Correspondence: (D.S.J.); (I.-H.C.)
| | - Ik-Hyun Cho
- Department of Convergence Medical Science, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Institute of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Correspondence: (D.S.J.); (I.-H.C.)
| |
Collapse
|
10
|
Gollnick H, Barber J, Wilkinson RJ, Newton S, Garg A. IL-27 inhibits anti- Mycobacterium tuberculosis innate immune activity of primary human macrophages. Tuberculosis (Edinb) 2023; 139:102326. [PMID: 36863206 PMCID: PMC10052773 DOI: 10.1016/j.tube.2023.102326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 02/12/2023] [Accepted: 02/19/2023] [Indexed: 03/04/2023]
Abstract
Mycobacterium tuberculosis (M. tuberculosis) is an intracellular pathogen that primarily infects macrophages. Despite a robust anti-mycobacterial response, many times macrophages are unable to control M. tuberculosis. The purpose of this study was to investigate the mechanism by which the immunoregulatory cytokine IL-27 inhibits the anti-mycobacterial activity of primary human macrophages. We found concerted production of IL-27 and anti-mycobacterial cytokines by M. tuberculosis-infected macrophages in a toll-like receptor (TLR) dependent manner. Notably, IL-27 suppressed the production of anti-mycobacterial cytokines TNFα, IL-6, IL-1β, and IL-15 by M. tuberculosis-infected macrophages. IL-27 limits the anti-mycobacterial activity of macrophages by reducing Cyp27B, cathelicidin (LL-37), LC3B lipidation, and increasing IL-10 production. Furthermore, neutralizing both IL-27 and IL-10 increased the expression of proteins involved in LC3-associated phagocytosis (LAP) pathway for bacterial clearance, namely vacuolar-ATPase, NOX2, and RUN-domain containing protein RUBCN. These results implicate IL-27 is a prominent cytokine that impedes M. tuberculosis clearance.
Collapse
Affiliation(s)
- Hailey Gollnick
- College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - Jamie Barber
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - Robert J Wilkinson
- Department of Infectious Diseases, Imperial College London, W12 0NN, United Kingdom; The Francis Crick Institute London, NW1 1AT, United Kingdom
| | - Sandra Newton
- Section of Pediatric Infectious Disease, Department of Infectious Disease, Imperial College London, W2 1PG, United Kingdom
| | - Ankita Garg
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, USA.
| |
Collapse
|
11
|
Beesley CF, Goldman NR, Taher TE, Denton CP, Abraham DJ, Mageed RA, Ong VH. Dysregulated B cell function and disease pathogenesis in systemic sclerosis. Front Immunol 2023; 13:999008. [PMID: 36726987 PMCID: PMC9885156 DOI: 10.3389/fimmu.2022.999008] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/22/2022] [Indexed: 01/18/2023] Open
Abstract
Systemic sclerosis (SSc) is a complex, immune-mediated rheumatic disease characterised by excessive extracellular matrix deposition in the skin and internal organs. B cell infiltration into lesional sites such as the alveolar interstitium and small blood vessels, alongside the production of defined clinically relevant autoantibodies indicates that B cells play a fundamental role in the pathogenesis and development of SSc. This is supported by B cell and fibroblast coculture experiments revealing that B cells directly enhance collagen and extracellular matrix synthesis in fibroblasts. In addition, B cells from SSc patients produce large amounts of profibrotic cytokines such as IL-6 and TGF-β, which interact with other immune and endothelial cells, promoting the profibrotic loop. Furthermore, total B cell counts are increased in SSc patients compared with healthy donors and specific differences can be found in the content of naïve, memory, transitional and regulatory B cell compartments. B cells from SSc patients also show differential expression of activation markers such as CD19 which may shape interactions with other immune mediators such as T follicular helper cells and dendritic cells. The key role of B cells in SSc is further supported by the therapeutic benefit of B cell depletion with rituximab in some patients. It is notable also that B cell signaling is impaired in SSc patients, and this could underpin the failure to induce tolerance in B cells as has been shown in murine models of scleroderma.
Collapse
Affiliation(s)
- Claire F. Beesley
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
| | - Nina R. Goldman
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
| | - Taher E. Taher
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Christopher P. Denton
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
| | - David J. Abraham
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
| | - Rizgar A. Mageed
- Centre for Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Voon H. Ong
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
| |
Collapse
|
12
|
Nishi Y, Murakami Y, Teshima S, Tsukano K, Otsuka M, Hirata H, Tsuchiya M, Suzuki K. Endotoxin activity and leukocytic STAT3 mRNA alterations differ according to age in lipopolysaccharide-challenged calves. Res Vet Sci 2022; 152:300-306. [DOI: 10.1016/j.rvsc.2022.08.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 11/27/2022]
|
13
|
Zhao C, Zhang Y, Suo A, Mu J, Ding D. Toxicity of tributyltin chloride on haarder (Liza haematocheila) after its acute exposure: Bioaccumulation, antioxidant defense, histological, and transcriptional analyses. FISH & SHELLFISH IMMUNOLOGY 2022; 130:501-511. [PMID: 36162773 DOI: 10.1016/j.fsi.2022.09.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Liza haematocheila is exposed to various chemical contaminants from anthropogenic sources, including tributyltin chloride (TBTC). Yet the toxicity mechanism of TBTC on haarder remains unclear. The haarder was exposed to different doses (0, 10%, 20%, and 50% of LC50-96 h) of TBTC. In this study, the results revealed its high bioaccumulation in the livers and significant alteration for development. The activities of antioxidant enzymes superoxide dismutase, catalase, and glutathione peroxidase decreased after 96-h exposure to TBTC, this accompanied by an increased malondialdehyde level. TBTC exposure caused the intense production of reactive oxygen species, a reduction in total blood cell count in serum, and apoptosis-related alterations in livers, indicating that enhanced oxidative stress occurred in the process of TBTC exposure. Histological results revealed angiorrhexis and infiltration of inflammatory cells, vacuolar degeneration of hepatocytes in the livers, and swelling, fusion, and disintegration of gill organs. Interestingly, the obtained transcriptional profiles indicated that high doses of TBTC caused energy disorder, apoptosis, and adipogenesis restriction mediated by cytokines and adipokines in Jak-STAT and adipocytokine signaling pathways. In summary, acute exposure to high doses of TBTC could impair the antioxidant system and pathways related to energy, apoptosis and adipogenesis, eventually posing a serious challenge to the fitness of haarder individuals and its fish populations as marine resources.
Collapse
Affiliation(s)
- Changsheng Zhao
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuting Zhang
- College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Anning Suo
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.
| | - Jingli Mu
- College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Dewen Ding
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
| |
Collapse
|
14
|
Lungu P, Mushota K, Njelesani E, Sukwa T, Lakhi S, Mwaba P. Expression of mycobacterium tuberculosis induced SOCS3 and STAT3 and the implications on innate immunity in TB patients vs healthy contacts in high TB/HIV endemic setting: A cross-sectional analytical study. PLoS One 2022; 17:e0263624. [PMID: 35839170 PMCID: PMC9286224 DOI: 10.1371/journal.pone.0263624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 01/22/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Mycobacterium tuberculosis (TB) remains a disease of global health concern and a leading cause of mortality arising from an infectious agent. Protective immunity to TB remains unclear. Suppressor of cytokine signaling-3 (SOCS3) and signal transduction and activator of transcription-3 (STAT3) genes have shown potential to influence innate immunity. We, therefore, explored the expression of SOCS3 and STAT3 and their implications on the innate immunity in TB patients and their healthy close contacts. METHODS We recruited 72 TB patients and 62 healthy contacts from a high TB and HIV endemic setting (Lusaka, Zambia). We used RT-PCRT and flow cytometry to quantify the expression of SOCS, STAT3 and cytokines respectively. Data was analysed Stata version 14.0 and figures were developed in GraphPad prism version 9.1.0 (221). Assessment for associations for categorical and continuous variables was analysed using the Chi-square test and Mann-Whitney test respectively. Spearman's rank correlation was used to evaluate the relationship between SOCS3 and IL-6. A p-value < 0.05 was considered statistically significant. RESULTS Healthy contacts markedly expressed SOCS3 in both unstimulated and stimulated whole blood in comparison to TB patients (p <0.0001). STAT3 was elevated in TB patients in TB patients in stimulated blood only. IL-6 (P = < 0.0001) and IL-10 (P = <0.0001), were significantly expressed in Healthy contacts in comparison to TB patients. TNF-α (p = 0.044) were markedly elevated in TB patients in comparison to healthy contacts. IL-6 and SOCS3 correlated significantly in healthy contacts only (r = 0.429, p = 0.02). CONCLUSIONS Both SOCS3 and STAT3 are genes of importance in mounting protective innate immunity against TB. We propose that SOCS3 stimulation and inhibition of STAT3 as possible approaches in gene therapy and vaccine development for TB.
Collapse
Affiliation(s)
- Patrick Lungu
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Kabaso Mushota
- USAID Sustaining Technical and Analytic Resources (STAR) Project, Lusaka, Zambia
| | | | - Thomas Sukwa
- Faculty of Medicine, Lusaka Apex Medical University, Lusaka, Zambia
| | - Shabir Lakhi
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Peter Mwaba
- Faculty of Medicine, Lusaka Apex Medical University, Lusaka, Zambia
| |
Collapse
|
15
|
Thorenoor N, Floros J. The Lung Alveolar Cell (LAC) miRNome and Gene Expression Profile of the SP-A-KO Mice After Infection With and Without Rescue With Human Surfactant Protein-A2 (1A0). Front Immunol 2022; 13:854434. [PMID: 35844510 PMCID: PMC9283764 DOI: 10.3389/fimmu.2022.854434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
Human surfactant protein (SP)-A1 and SP-A2 exhibit differential qualitative and quantitative effects on the alveolar macrophage (AM), including a differential impact on the AM miRNome. Moreover, SP-A rescue (treatment) of SP-A-knockout (KO) infected mice impoves survival. Here, we studied for the first time the role of exogenous SP-A protein treatment on the regulation of lung alveolar cell (LAC) miRNome, the miRNA-RNA targets, and gene expression of SP-A-KO infected mice of both sexes. Toward this, SP-A-KO mice of both sexes were infected with Klebsiella pneumoniae, and half of them were also treated with SP-A2 (1A0). After 6 h of infection/SP-A treatment, the expression levels and pathways of LAC miRNAs, genes, and target miRNA-mRNAs were studied in both groups. We found 1) significant differences in the LAC miRNome, genes, and miRNA-mRNA targets in terms of sex, infection, and infection plus SP-A2 (1A0) protein rescue; 2) an increase in the majority of miRNA-mRNA targets in both study groups in KO male vs. female mice and involvement of the miRNA-mRNA targets in pathways of inflammation, antiapoptosis, and cell cycle; 3) genes with significant changes to be involved in TP-53, tumor necrosis factor (TNF), and cell cycle signaling nodes; 4) when significant changes in the expression of molecules from all analyses (miRNAs, miRNA-mRNA targets, and genes) were considered, two signaling pathways, the TNF and cell cycle, referred to as “integrated pathways” were shown to be significant; 5) the cell cycle pathway to be present in all comparisons made. Because SP-A could be used therapeutically in pulmonary diseases, it is important to understand the molecules and pathways involved in response to an SP-A acute treatment. The information obtained contributes to this end and may help to gain insight especially in the case of infection.
Collapse
Affiliation(s)
- Nithyananda Thorenoor
- Department of Pediatrics, College of Medicine, The Pennsylvania State University, Hershey, PA, United States
- Department of Biochemistry and Molecular Biology, College of Medicine, The Pennsylvania State University, Hershey, PA, United States
| | - Joanna Floros
- Department of Pediatrics, College of Medicine, The Pennsylvania State University, Hershey, PA, United States
- Department of Obstetrics and Gynecology, College of Medicine, The Pennsylvania State University, Hershey, PA, United States
| |
Collapse
|
16
|
Shen Q, Zhao L, Pan L, Li D, Chen G, Chen Z, Jiang Z. Soluble SIRP-Alpha Promotes Murine Acute Lung Injury Through Suppressing Macrophage Phagocytosis. Front Immunol 2022; 13:865579. [PMID: 35634325 PMCID: PMC9133620 DOI: 10.3389/fimmu.2022.865579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 04/13/2022] [Indexed: 11/17/2022] Open
Abstract
Soluble signal regulatory protein-alpha (SIRP-alpha) is elevated in bronchoalveolar lavage (BAL) of mice with lipopolysaccharides (LPS)-induced acute lung injury (ALI). To define the role of soluble SIRP-alpha in the pathogenesis of ALI, we established murine ALI in wild-type (WT) and SIRP-alpha knock-out (KO) mice by intratracheal administration of LPS. The results indicated that lack of SIRP-alpha significantly reduced the pathogenesis of ALI, in association with attenuated lung inflammation, infiltration of neutrophils and expression of pro-inflammatory cytokines in mice. In addition, lack of SIRP-alpha reduced the expression of pro-inflammatory cytokines in LPS-treated bone marrow-derived macrophages (BMDMs) from KO mice, accompanied with improved macrophage phagocytosis. Blockade of soluble SIRP-alpha activity in ALI BAL by anti-SIRP-alpha antibody (aSIRP) effectively reduced the expression of TNF-alpha and IL-6 mRNA transcripts and proteins, improved macrophage phagocytosis in vitro. In addition, lack of SIRP-alpha reduced activation of Src homology 2 domain-containing protein tyrosine phosphatase 1 (SHP-1) and improved activation of signal transducer and activator of transcription-3 (STAT3) and STAT6. Suppression of SHP-1 activity by tyrosine phosphatase inhibitor 1 (TPI-1) increased activation of STAT3 and STAT6, and improved macrophage phagocytosis, that was effectively reversed by STAT3 and STAT6 inhibitors. Thereby, SIRP-alpha suppressed macrophage phagocytosis through activation of SHP-1, subsequently inhibiting downstream STAT3 and STAT6 signaling. Lack of SIRP-alpha attenuated murine ALI possibly through increasing phagocytosis, and improving STAT3 and STAT6 signaling in macrophages. SIRP-alpha would be promising biomarker and molecular target in the treatment of murine ALI and patients with acute respiratory distress syndrome (ARDS).
Collapse
Affiliation(s)
- Qinjun Shen
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Li Zhao
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Linyue Pan
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Dandan Li
- Department of Pulmonary and Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Gang Chen
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhihong Chen
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhilong Jiang
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
17
|
Ni S, Shan F, Geng J. Interleukin-10 family members: Biology and role in the bone and joint diseases. Int Immunopharmacol 2022; 108:108881. [PMID: 35623292 DOI: 10.1016/j.intimp.2022.108881] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 11/05/2022]
Abstract
Interleukin (IL)-10 family cytokines include IL-10, IL-19, IL-20, IL-22, IL-24, IL-26, IL-28A, IL-28B, and IL-29. These cytokines play crucial regulatory roles in various biological reactions and diseases. In recent years, several studies have shown that the IL-10 family plays a vital role in bone and joint diseases, including bone metabolic diseases, fractures, osteoarthritis, rheumatoid arthritis, and bone tumors. Herein, the recent progress on the regulatory role of IL-10 family of cytokines in the occurrence and development of bone and joint diseases has been summarized. This review will provide novel directions for immunotherapy of bone and joint diseases.
Collapse
Affiliation(s)
- Shenghui Ni
- Department of Orthopaedics, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China
| | - Fengping Shan
- Department of Immunology, College of Basic Medical Science, China Medical University, Shenyang 110122, Liaoning, China
| | - Jin Geng
- Department of Ophthalmology, the First Hospital of China Medical University, Shenyang, 110001, Liaoning, China.
| |
Collapse
|
18
|
SIGIRR Mutation in Human Necrotizing Enterocolitis (NEC) Disrupts STAT3-Dependent microRNA Expression in Neonatal Gut. Cell Mol Gastroenterol Hepatol 2021; 13:425-440. [PMID: 34563711 PMCID: PMC8688179 DOI: 10.1016/j.jcmgh.2021.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 01/18/2023]
Abstract
BACKGROUND & AIMS Single immunoglobulin interleukin-1-related receptor (SIGIRR) is a major inhibitor of Toll-like receptor signaling. Our laboratory identified a novel SIGIRR stop mutation (p.Y168X) in an infant who died of severe necrotizing enterocolitis (NEC). Herein, we investigated the mechanisms by which SIGIRR mutations induce Toll-like receptor hyper-responsiveness in the neonatal gut, disrupting postnatal intestinal adaptation. METHODS Clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 was used to generate transgenic mice encoding the SIGIRR p.Y168X mutation. Ileal lysates, mouse intestinal epithelial cell (IEC) lysates, and intestinal sections were used to assess inflammation, signal transducer and activator of transcription 3 (STAT3) phosphorylation, microRNA (miRNA), and interleukin-1-related-associated kinase 1 (IRAK1) expression. Western blot, quantitative reverse-transcription polymerase chain reaction(qRT-PCR), and luciferase assays were performed to investigate SIGIRR-STAT3 signaling in human intestinal epithelial cells (HIEC) expressing wild-type or SIGIRR (p.Y168X) plasmids. RESULTS SigirrTg mice showed increased intestinal inflammation and nuclear factor-κB activation concomitant with decreased IEC expression of miR-146a and miR-155. Mechanistic studies in HIECs showed that although SIGIRR induced STAT3-mediated expression of miR-146a and miR-155, the p.Y168X mutation disrupted SIGIRR-mediated STAT3-dependent miRNA expression. Chromatin immunoprecipitation and luciferase assays showed that SIGIRR activation of STAT3-induced miRNA expression is dependent on IRAK1. Both in HIECs and in the mouse intestine, decreased expression of miR-146a observed with the p.Y168X mutation increased expression of IRAK1, a protein whose down-regulation is important for postnatal gut adaptation. CONCLUSIONS Our results uncover a novel pathway (SIGIRR-STAT3-miRNA-IRAK1 repression) by which SIGIRR regulates postnatal intestine adaptation, which is disrupted by a SIGIRR mutation identified in human NEC. These data provide new insights into how human genetic mutations in SIGIRR identified in NEC result in loss of postnatal intestinal immune tolerance.
Collapse
|
19
|
Yoshimura A, Ito M, Mise-Omata S, Ando M. SOCS: negative regulators of cytokine signaling for immune tolerance. Int Immunol 2021; 33:711-716. [PMID: 34415326 DOI: 10.1093/intimm/dxab055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/18/2021] [Indexed: 11/14/2022] Open
Abstract
Cytokines are important intercellular communication tools for immunity. Many cytokines promote gene transcription and proliferation through the JAK/STAT (Janus kinase / signal transducers and activators of transcription) and the Ras/ERK (GDP/GTP-binding rat sarcoma protein / extracellular signal-regulated kinase) pathways, and these signaling pathways are tightly regulated. The SOCS (suppressor of cytokine signaling) family are representative negative regulators of JAK/STAT-mediated cytokine signaling and regulate the differentiation and function of T cells, thus being involved in immune tolerance. Human genetic analysis has shown that SOCS family members are strongly associated with autoimmune diseases, allergy and tumorigenesis. SOCS family proteins also function as immune-checkpoint molecules that contribute to the unresponsiveness of T cells to cytokines.
Collapse
Affiliation(s)
- Akihiko Yoshimura
- Department of Microbiology and Immunology, Keio University School of Medicine, Shinanomachi, Shinjyuku-ku, Tokyo, Japan
| | - Minako Ito
- Medical Institute of Bioregulation Kyushu University, Maidashi, Higashi-ku, Fukuoka, Japan
| | - Setsuko Mise-Omata
- Department of Microbiology and Immunology, Keio University School of Medicine, Shinanomachi, Shinjyuku-ku, Tokyo, Japan
| | - Makoto Ando
- Department of Microbiology and Immunology, Keio University School of Medicine, Shinanomachi, Shinjyuku-ku, Tokyo, Japan
| |
Collapse
|
20
|
Gupte R, Nandu T, Kraus WL. Nuclear ADP-ribosylation drives IFNγ-dependent STAT1α enhancer formation in macrophages. Nat Commun 2021; 12:3931. [PMID: 34168143 PMCID: PMC8225886 DOI: 10.1038/s41467-021-24225-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 06/04/2021] [Indexed: 02/01/2023] Open
Abstract
STAT1α is a key transcription factor driving pro-inflammatory responses in macrophages. We found that the interferon gamma (IFNγ)-regulated transcriptional program in macrophages is controlled by ADP-ribosylation (ADPRylation) of STAT1α, a post-translational modification resulting in the site-specific covalent attachment of ADP-ribose moieties. PARP-1, the major nuclear poly(ADP-ribose) polymerase (PARP), supports IFNγ-stimulated enhancer formation by regulating the genome-wide binding and IFNγ-dependent transcriptional activation of STAT1α. It does so by ADPRylating STAT1α on specific residues in its DNA-binding domain (DBD) and transcription activation (TA) domain. ADPRylation of the DBD controls STAT1α binding to its cognate DNA elements, whereas ADPRylation of the TA domain regulates enhancer activation by modulating STAT1α phosphorylation and p300 acetyltransferase activity. Loss of ADPRylation at either site leads to diminished IFNγ-dependent transcription and downstream pro-inflammatory responses. We conclude that PARP-1-mediated ADPRylation of STAT1α drives distinct enhancer activation mechanisms and is a critical regulator of inflammatory responses in macrophages.
Collapse
Affiliation(s)
- Rebecca Gupte
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Division of Basic Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Tulip Nandu
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Division of Basic Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - W Lee Kraus
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Division of Basic Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| |
Collapse
|
21
|
Wu W, Wu G, Cao D. Acteoside Presents Protective Effects on Cerebral Ischemia/reperfusion Injury Through Targeting CCL2, CXCL10, and ICAM1. Cell Biochem Biophys 2021; 79:301-310. [PMID: 33439460 DOI: 10.1007/s12013-020-00965-8] [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] [Accepted: 12/12/2020] [Indexed: 11/26/2022]
Abstract
The objective of this study is to investigate the roles of acteoside (ACT) in cells with oxygen-glucose deprivation and reoxygenation (OGD/R)-induced injury and the underlying mechanisms. The differentially expressed genes (DEGs) in rats with middle cerebral artery occlusion were identified using GSE61616 data set. Kyoto Encyclopedia of Genes and Genomes pathway enrichment with the DEGs and the prediction of ACT's targets were conducted using The Comparative Toxicogenomics Database. The OGD/R model was established with bEnd.3 cells. Following that, bEnd.3 cells were treated by distinct concentrations of ACT and IL-10. The proliferation and apoptosis of cells were analyzed by cell counting kit-8 and flow cytometry assays, respectively. Western blot was used to check involved proteins. Herein, we identified CCL2, CXCL10, and ICAM1 as the targets of ACT, which were upregulated in tissues of MACO rats and cells with OGD/R-induced injury. ACT promoted the proliferation but reduce the apoptosis of cells with OGD/R-induced injury. Moreover, these effects of ACT were enhanced by IL-10. After being treated with ACT, IL-10, or ACT together with IL-10, the levels of CCL2, CXCL10, and ICAM1 were all decreased, whereas p-Stat3 was raised in cells with OGD/R-induced injury, while Stat3 expression presented no significant difference among groups. ACT protected cells against OGD/R-induced injury through regulating the IL-10/Stat3 signaling, indicating that ACT might be an effective therapy drug to lower cerebral ischemia/reperfusion injury.
Collapse
Affiliation(s)
- Weijiang Wu
- Department of Neurosurgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu Province, PR China
| | - Gang Wu
- Department of Neurology, Binzhou People's Hospital, Binzhou, Shandong Province, PR China
| | - Deyan Cao
- The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, PR China.
| |
Collapse
|
22
|
Nürnberger F, Leisengang S, Ott D, Murgott J, Gerstberger R, Rummel C, Roth J. Manifestation of lipopolysaccharide-induced tolerance in neuro-glial primary cultures of the rat afferent somatosensory system. Inflamm Res 2021; 70:429-444. [PMID: 33582876 PMCID: PMC8012319 DOI: 10.1007/s00011-021-01440-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/12/2021] [Accepted: 01/28/2021] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVE Bacterial lipopolysaccharide (LPS) may contribute to the manifestation of inflammatory pain within structures of the afferent somatosensory system. LPS can induce a state of refractoriness to its own effects termed LPS tolerance. We employed primary neuro-glial cultures from rat dorsal root ganglia (DRG) and the superficial dorsal horn (SDH) of the spinal cord, mainly including the substantia gelatinosa to establish and characterize a model of LPS tolerance within these structures. METHODS Tolerance was induced by pre-treatment of both cultures with 1 µg/ml LPS for 18 h, followed by a short-term stimulation with a higher LPS dose (10 µg/ml for 2 h). Cultures treated with solvent were used as controls. Cells from DRG or SDH were investigated by means of RT-PCR (expression of inflammatory genes) and immunocytochemistry (translocation of inflammatory transcription factors into nuclei of cells from both cultures). Supernatants from both cultures were assayed for tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) by highly sensitive bioassays. RESULTS At the mRNA-level, pre-treatment with 1 µg/ml LPS caused reduced expression of TNF-α and enhanced IL-10/TNF-α expression ratios in both cultures upon subsequent stimulation with 10 µg/ml LPS, i.e. LPS tolerance. SDH cultures further showed reduced release of TNF-α into the supernatants and attenuated TNF-α immunoreactivity in microglial cells. In the state of LPS tolerance macrophages from DRG and microglial cells from SDH showed reduced LPS-induced nuclear translocation of the inflammatory transcription factors NFκB and NF-IL6. Nuclear immunoreactivity of the IL-6-activated transcription factor STAT3 was further reduced in neurons from DRG and astrocytes from SDH in LPS tolerant cultures. CONCLUSION A state of LPS tolerance can be induced in primary cultures from the afferent somatosensory system, which is characterized by a down-regulation of pro-inflammatory mediators. Thus, this model can be applied to study the effects of LPS tolerance at the cellular level, for example possible modifications of neuronal reactivity patterns upon inflammatory stimulation.
Collapse
Affiliation(s)
- Franz Nürnberger
- Department of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, Frankfurter Strasse 100, 35392, Giessen, Germany
| | - Stephan Leisengang
- Department of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, Frankfurter Strasse 100, 35392, Giessen, Germany
| | - Daniela Ott
- Department of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, Frankfurter Strasse 100, 35392, Giessen, Germany
| | - Jolanta Murgott
- Department of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, Frankfurter Strasse 100, 35392, Giessen, Germany
| | - Rüdiger Gerstberger
- Department of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, Frankfurter Strasse 100, 35392, Giessen, Germany
| | - Christoph Rummel
- Department of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, Frankfurter Strasse 100, 35392, Giessen, Germany
| | - Joachim Roth
- Department of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, Frankfurter Strasse 100, 35392, Giessen, Germany.
| |
Collapse
|
23
|
Aganovic-Musinovic I, Burnazovic-Ristic L, Kusturica J, Cesic AK, Ademovic E, Sarac-Hadzihalilovic A, Kapo SM, Loga-Zec S, Rakanovic-Todic M. Effects of topically applied diclofenac and ketoprofen on prostaglandin E2 and Stat3 sera levels and body temperature in two different acute inflammation models in rats. Saudi J Biol Sci 2021; 28:3816-3822. [PMID: 34220236 PMCID: PMC8241605 DOI: 10.1016/j.sjbs.2021.03.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/18/2021] [Accepted: 03/21/2021] [Indexed: 12/03/2022] Open
Abstract
Introduction Cytokines exert biological function through signal transducer and activator of transcription factors. Prostaglandins have function as promotors, where play a key role in generation of the inflammatory response and as ones that solve inflammatory process. Non-steroidal anti-inflammatory drugs, inhibit prostaglandin synthesis but the existence of additional mechanisms is present. Thus, we aimed to explore effects of topically applied NSAIDs on the levels of PGE2 and Stat3 in the setting of two in vivo induced acute inflammation models. Methods Male Wistar rats were randomized into five equal groups: 4 treated and a control group. Diclofenac or ketoprofen patches were applied in two different doses, i.e. equivalent to human therapeutic dose, and three times higher dose. Three hours later either model of inflammation (with 20% yeast, or with 1% carrageenan) was induced. Blood samples were taken 3 hours after and concentration levels of PGE 2 and Stat3 were determined using ELISA. Body temperature was measured at 0. 1st, 3rd and 5th hour after inflammation induction and presented in Celsius degrees. Shapiro-Wilk, Leven’s, Welch’s One-Way ANOVA, Kruskal-Wallis test and adjustment by Bonferroni correction were applied. Results In both inflammation models, no differences in the mean values of PGE 2 between control, low and high dose groups treated by either diclofenac or ketoprofen were found. In yeast inflammation, the mean value of Stat3 was significantly higher in both dose ketoprofen groups compared to control group. After ketoprofen application, no significant differences in body temperature between groups at hour 0 and 5 in either model of inflammation induced, while at 1st hour after carrageenan inflammation, significant differences were found with significantly higher values in low dose ketoprofen group compared to control group. In yeast application, significant differences in body temperature were found at hour 3 after inducing inflammation and post hoc pairwise comparison test revealed significant higher values in low dose ketoprofen group compared to control. Conclusion Elevated Stat3 values post ketoprofen application in yeast model of induced inflammation were detected. Further investigation of cytokine microenvironment as well as the mechanisms of ketoprofen influence on inflammation are needed.
Collapse
Affiliation(s)
- Izeta Aganovic-Musinovic
- Immunology Department, Medical Faculty of University in Sarajevo, Cekalusa 90, 71000 Sarajevo, Bosnia and Herzegovina
| | - Lejla Burnazovic-Ristic
- Department of Pharmacology Medical Faculty of University in Sarajevo Cekalusa 90, 71000 Sarajevo, Bosnia and Herzegovina
| | - Jasna Kusturica
- Department of Pharmacology Medical Faculty of University in Sarajevo Cekalusa 90, 71000 Sarajevo, Bosnia and Herzegovina
| | - Aida Kulo Cesic
- Department of Pharmacology Medical Faculty of University in Sarajevo Cekalusa 90, 71000 Sarajevo, Bosnia and Herzegovina
| | - Enisa Ademovic
- Department of Epidemiology and Biostatistics, Medical Faculty of University in Sarajevo, Cekalusa 90, 71000 Sarajevo, Bosnia and Herzegovina
| | - Aida Sarac-Hadzihalilovic
- Department of Anatomy, Medical Faculty of University in Sarajevo, Cekalusa 90, 71000 Sarajevo, Bosnia and Herzegovina
| | - Sanita Maleskic Kapo
- Department of Pharmacology Medical Faculty of University in Sarajevo Cekalusa 90, 71000 Sarajevo, Bosnia and Herzegovina
| | - Svjetlana Loga-Zec
- Department of Pharmacology Medical Faculty of University in Sarajevo Cekalusa 90, 71000 Sarajevo, Bosnia and Herzegovina
| | - Maida Rakanovic-Todic
- Department of Pharmacology Medical Faculty of University in Sarajevo Cekalusa 90, 71000 Sarajevo, Bosnia and Herzegovina
| |
Collapse
|
24
|
Targeting the Autonomic Nervous System for Risk Stratification, Outcome Prediction and Neuromodulation in Ischemic Stroke. Int J Mol Sci 2021; 22:ijms22052357. [PMID: 33652990 PMCID: PMC7956667 DOI: 10.3390/ijms22052357] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 02/07/2023] Open
Abstract
Ischemic stroke is a worldwide major cause of mortality and disability and has high costs in terms of health-related quality of life and expectancy as well as of social healthcare resources. In recent years, starting from the bidirectional relationship between autonomic nervous system (ANS) dysfunction and acute ischemic stroke (AIS), researchers have identified prognostic factors for risk stratification, prognosis of mid-term outcomes and response to recanalization therapy. In particular, the evaluation of the ANS function through the analysis of heart rate variability (HRV) appears to be a promising non-invasive and reliable tool for the management of patients with AIS. Furthermore, preclinical molecular studies on the pathophysiological mechanisms underlying the onset and progression of stroke damage have shown an extensive overlap with the activity of the vagus nerve. Evidence from the application of vagus nerve stimulation (VNS) on animal models of AIS and on patients with chronic ischemic stroke has highlighted the surprising therapeutic possibilities of neuromodulation. Preclinical molecular studies highlighted that the neuroprotective action of VNS results from anti-inflammatory, antioxidant and antiapoptotic mechanisms mediated by α7 nicotinic acetylcholine receptor. Given the proven safety of non-invasive VNS in the subacute phase, the ease of its use and its possible beneficial effect in hemorrhagic stroke as well, human studies with transcutaneous VNS should be less challenging than protocols that involve invasive VNS and could be the proof of concept that neuromodulation represents the very first therapeutic approach in the ultra-early management of stroke.
Collapse
|
25
|
Yang N, Xiong Y, Wang Y, Yi Y, Zhu J, Ma F, Li J, Liu H. ADAP Y571 Phosphorylation Is Required to Prime STAT3 for Activation in TLR4-Stimulated Macrophages. THE JOURNAL OF IMMUNOLOGY 2021; 206:814-826. [PMID: 33431658 DOI: 10.4049/jimmunol.2000569] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 12/07/2020] [Indexed: 12/24/2022]
Abstract
Adhesion and degranulation-promoting adapter protein (ADAP), originally identified as an essential adaptor molecule in TCR signaling and T cell adhesion, has emerged as a critical regulator in innate immune cells such as macrophages; however, its role in macrophage polarization and inflammatory responses remains unknown. In this study, we show that ADAP plays an essential role in TLR4-mediated mouse macrophage polarization via modulation of STAT3 activity. Macrophages from ADAP-deficient mice exhibit enhanced M1 polarization, expression of proinflammatory cytokines and capacity in inducing Th1 responses, but decreased levels of anti-inflammatory cytokines in response to TLR4 activation by LPS. Furthermore, overexpression of ADAP enhances, whereas loss of ADAP reduces, the LPS-mediated phosphorylation and activity of STAT3, suggesting ADAP acts as a coactivator of STAT3 activity and function. Furthermore, the coactivator function of ADAP mostly depends on the tyrosine phosphorylation at Y571 in the motif YDSL induced by LPS. Mutation of Y571 to F severely impairs the stimulating effect of ADAP on STAT3 activity and the ability of ADAP to inhibit M1-like polarization in TLR4-activated mouse macrophages. Moreover, ADAP interacts with STAT3, and loss of ADAP renders mouse macrophages less sensitive to IL-6 stimulation for STAT3 phosphorylation. Collectively, our findings revealed an additional layer of regulation of TLR4-mediated mouse macrophage plasticity whereby ADAP phosphorylation on Y571 is required to prime STAT3 for activation in TLR4-stimulated mouse macrophages.
Collapse
Affiliation(s)
- Naiqi Yang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China.,Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu Province, China
| | - Yiwei Xiong
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Yan Wang
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu Province, China
| | - Yulan Yi
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu Province, China
| | - Jingfei Zhu
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China; and.,Suzhou Institute of Systems Medicine, Suzhou 215123, China
| | - Feng Ma
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China; and.,Suzhou Institute of Systems Medicine, Suzhou 215123, China
| | - Jing Li
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu Province, China
| | - Hebin Liu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China; .,Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu Province, China
| |
Collapse
|
26
|
YOSHIMURA A, AKI D, ITO M. SOCS, SPRED, and NR4a: Negative regulators of cytokine signaling and transcription in immune tolerance. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2021; 97:277-291. [PMID: 34121041 PMCID: PMC8403526 DOI: 10.2183/pjab.97.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Cytokines are important intercellular communication tools for immunity. Most cytokines utilize the JAK-STAT and Ras-ERK pathways to promote gene transcription and proliferation; however, this signaling is tightly regulated. The suppressor of cytokine signaling (SOCS) family and SPRED family are a representative negative regulators of the JAK-STAT pathway and the Ras-ERK pathway, respectively. The SOCS family regulates the differentiation and function of CD4+ T cells, CD8+ T cells, and regulatory T cells, and is involved in immune tolerance, anergy, and exhaustion. SPRED family proteins have been shown to inactivate Ras by recruiting the Ras-GTPase neurofibromatosis type 1 (NF1) protein. Human genetic analysis has shown that SOCS family members are strongly associated with autoimmune diseases, allergies, and tumorigenesis, and SPRED1 is involved in NF1-like syndromes and tumors. We also identified the NR4a family of nuclear receptors as a key transcription factor for immune tolerance that suppresses cytokine expression and induces various immuno-regulatory molecules including SOCS1.
Collapse
Affiliation(s)
- Akihiko YOSHIMURA
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
- Correspondence should be addressed: A. Yoshimura, Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan (e-mail: )
| | - Daisuke AKI
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
| | - Minako ITO
- Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| |
Collapse
|
27
|
Thorenoor N, Phelps DS, Floros J. Differential Sex-Dependent Regulation of the Alveolar Macrophage miRNome of SP-A2 and co-ex (SP-A1/SP-A2) and Sex Differences Attenuation after 18 h of Ozone Exposure. Antioxidants (Basel) 2020; 9:antiox9121190. [PMID: 33260937 PMCID: PMC7768498 DOI: 10.3390/antiox9121190] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/19/2020] [Accepted: 11/25/2020] [Indexed: 12/19/2022] Open
Abstract
Background: Human SP-A1 and SP-A2, encoded by SFTPA1 and SFTPA2, and their genetic variants differentially impact alveolar macrophage (AM) functions and regulation, including the miRNome. We investigated whether miRNome differences previously observed between AM from SP-A2 and SP-A1/SP-A2 mice are due to continued qualitative differences or a delayed response of mice carrying a single gene. Methods: Human transgenic (hTG) mice, carrying SP-A2 or both SP-A genes, and SP-A-KO mice were exposed to filtered air (FA) or ozone (O3). AM miRNA levels, target gene expression, and pathways determined 18 h after O3 exposure. RESULTS: We found (a) differences in miRNome due to sex, SP-A genotype, and exposure; (b) miRNome of both sexes was largely downregulated by O3, and co-ex had fewer changed (≥2-fold) miRNAs than either group; (c) the number and direction of the expression of genes with significant changes in males and females in co-ex are almost the opposite of those in SP-A2; (d) the same pathways were found in the studied groups; and (e) O3 exposure attenuated sex differences with a higher number of genotype-dependent and genotype-independent miRNAs common in both sexes after O3 exposure. Conclusion: Qualitative differences between SP-A2 and co-ex persist 18 h post-O3, and O3 attenuates sex differences.
Collapse
Affiliation(s)
- Nithyananda Thorenoor
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA; (N.T.); (D.S.P.)
- Department of Biochemistry & Molecular Biology, College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA
| | - David S. Phelps
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA; (N.T.); (D.S.P.)
| | - Joanna Floros
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA; (N.T.); (D.S.P.)
- Department of Obstetrics & Gynecology, College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA
- Correspondence:
| |
Collapse
|
28
|
Ho CH, Lu YC, Fan CK, Yu HJ, Liu HT, Wu CC, Chen KC, Liu SP, Cheng PC. Testosterone regulates the intracellular bacterial community formation of uropathogenic Escherichia coli in prostate cells via STAT3. Int J Med Microbiol 2020; 310:151450. [PMID: 33092696 DOI: 10.1016/j.ijmm.2020.151450] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 08/06/2020] [Accepted: 08/25/2020] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND UPEC can internalize clonally in prostate to form biofilm-like intracellular bacterial communities (IBCs) for recurrent or chronic infection. We previously indicated that the exposure of prostate cells to testosterone could suppress UPEC invasion and their persistent survival within cells by effectively inhibiting the JAK/STAT1 signaling pathway. However, the regulatory mechanism by which testosterone affects UPEC-induced prostatitis via STAT3, another latent transcription factor signaling pathway is still unclear. The present study aimed to clarify the role of STAT3 in the process of UPEC-induced inflammation and colonization in prostate epithelial cells. METHODS The effects of testosterone-mediated inhibition were compared between the prostatitis by different UPEC strains (CFT073 and J96) through the specific GFP-UPEC-infected prostate cell model. Fluorescence microscopy was used for UPEC IBCs detection and quantifying, and Flow cytometry, RT-PCR and western blotting were used for analyzing related gene and protein expressions. Pretreatment of JAK and STAT3 inhibitors were also applied to verify the regulation of transduction pathway in testosterone-mediated anti-UPEC infection. RESULTS This study revealed that testosterone effectively suppresses UPEC infection and IBC formation in prostate cells through the JAK/STAT3 pathway. The results show that CFT073 and J96 UPEC infection rates and colony numbers were dose-dependently reduced in RWPE-1 cells pretreated with 5 and 20 μg/mL testosterone at 0 and 24 h post-infection. Further, testosterone reduced the amounts of UPEC infecting and surviving within the prostate cells, as well as suppressed the size of IBCs formed. We demonstrated that pretreating testosterone effectively inhibited UPEC infection along with dose-dependent suppression of STAT3 and the phosphorylated-STAT3 expression in prostate cells, especially in 24 h J96 UPEC infected groups. The STAT inhibitor, SOCS3 also up-regulated at the same time. In addition, we pretreated the JAK1 or STAT3 inhibitor with testosterone to block the signaling transduction before CFT073 and J96 UPEC infection, and found the significant restoring in both the sizes of IBCs and bacterial numbers in RWPE-1 cells. Therefore, our results suggest that the suppression of STAT3 by testosterone treatment attenuate UPEC growing within IBCs and interfere with their infection to prostate cells. CONCLUSIONS Overall, our study demonstrates that testosterone suppresses the initial infection of prostate epithelial cells by UPEC and reduces the survival of UPEC within IBCs after infection. These results indicate a critical role for STAT3 in facilitating UPEC infection and persistence, and its participation in driving testosterone-suppressive responses in prostate epithelial cells. In conclusion, this study suggests that testosterone may be beneficial in treating clinically recurrent UPEC infections and, thus, the persistent recurrence of prostatic inflammation.
Collapse
Affiliation(s)
- Chen-Hsun Ho
- Division of Urology, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
| | - Yu-Chuan Lu
- Department of Urology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Chia-Kwung Fan
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for International Tropical Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hong-Jeng Yu
- Department of Urology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Hsin-Tien Liu
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chia-Chang Wu
- Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Urology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Kuan-Chou Chen
- Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Urology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Shih-Ping Liu
- Department of Urology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.
| | - Po-Ching Cheng
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for International Tropical Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
29
|
Huang S, Liu K, Cheng A, Wang M, Cui M, Huang J, Zhu D, Chen S, Liu M, Zhao X, Wu Y, Yang Q, Zhang S, Ou X, Mao S, Gao Q, Yu Y, Tian B, Liu Y, Zhang L, Yin Z, Jing B, Chen X, Jia R. SOCS Proteins Participate in the Regulation of Innate Immune Response Caused by Viruses. Front Immunol 2020; 11:558341. [PMID: 33072096 PMCID: PMC7544739 DOI: 10.3389/fimmu.2020.558341] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/24/2020] [Indexed: 12/17/2022] Open
Abstract
The host immune system has multiple innate immune receptors that can identify, distinguish and react to viral infections. In innate immune response, the host recognizes pathogen-associated molecular patterns (PAMP) in nucleic acids or viral proteins through pathogen recognition receptors (PRRs), especially toll-like receptors (TLRs) and induces immune cells or infected cells to produce type I Interferons (IFN-I) and pro-inflammatory cytokines, thus when the virus invades the host, innate immunity is the earliest immune mechanism. Besides, cytokine-mediated cell communication is necessary for the proper regulation of immune responses. Therefore, the appropriate activation of innate immunity is necessary for the normal life activities of cells. The suppressor of the cytokine signaling proteins (SOCS) family is one of the main regulators of the innate immune response induced by microbial pathogens. They mainly participate in the negative feedback regulation of cytokine signal transduction through Janus kinase signal transducer and transcriptional activator (JAK/STAT) and other signal pathways. Taken together, this paper reviews the SOCS proteins structures and the function of each domain, as well as the latest knowledge of the role of SOCS proteins in innate immune caused by viral infections and the mechanisms by which SOCS proteins assist viruses to escape host innate immunity. Finally, we discuss potential values of these proteins in future targeted therapies.
Collapse
Affiliation(s)
- Shanzhi Huang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Ke Liu
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Anchun Cheng
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Mingshu Wang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Min Cui
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Juan Huang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Dekang Zhu
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Shun Chen
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Mafeng Liu
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xinxin Zhao
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yin Wu
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Qiao Yang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Shaqiu Zhang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xumin Ou
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Sai Mao
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Qun Gao
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yanling Yu
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Bin Tian
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yunya Liu
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Ling Zhang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Zhongqiong Yin
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Bo Jing
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xiaoyue Chen
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Renyong Jia
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| |
Collapse
|
30
|
Chamberlain TC, Cheung ST, Yoon JSJ, Ming-Lum A, Gardill BR, Shakibakho S, Dzananovic E, Ban F, Samiea A, Jawanda K, Priatel J, Krystal G, Ong CJ, Cherkasov A, Andersen RJ, McKenna SA, Van Petegem F, Mui ALF. Interleukin-10 and Small Molecule SHIP1 Allosteric Regulators Trigger Anti-inflammatory Effects through SHIP1/STAT3 Complexes. iScience 2020; 23:101433. [PMID: 32823063 PMCID: PMC7452241 DOI: 10.1016/j.isci.2020.101433] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/07/2020] [Accepted: 07/31/2020] [Indexed: 12/12/2022] Open
Abstract
The anti-inflammatory actions of interleukin-10 (IL10) are thought to be mediated primarily by the STAT3 transcription factor, but pro-inflammatory cytokines such as interleukin-6 (IL6) also act through STAT3. We now report that IL10, but not IL6 signaling, induces formation of a complex between STAT3 and the inositol polyphosphate-5-phosphatase SHIP1 in macrophages. Both SHIP1 and STAT3 translocate to the nucleus in macrophages. Remarkably, sesquiterpenes of the Pelorol family, which we previously described as allosteric activators of SHIP1 phosphatase activity, could induce SHIP1/STAT3 complex formation in cells and mimic the anti-inflammatory action of IL10 in a mouse model of colitis. Using crystallography and docking studies we identified a drug-binding pocket in SHIP1. Our studies reveal new mechanisms of action for both STAT3 and SHIP1 and provide a rationale for use of allosteric SHIP1-activating compounds, which mimic the beneficial anti-inflammatory actions of IL10. Video Abstract
Loss of normal interleukin-10 (IL10) function results in inflammatory diseases IL10 or SHIP1 agonists induce formation of SHIP1/STAT3 complexes SHIP1 Y190 phosphorylation is required for SHIP1/STAT3 complex formation SHIP1 agonists mimic IL10 anti-inflammatory action in a mouse model of colitis
Collapse
Affiliation(s)
- Thomas C Chamberlain
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, BC V6H 3Z6, Canada; Department of Surgery, University of British Columbia, Vancouver, Canada; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Sylvia T Cheung
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, BC V6H 3Z6, Canada; Department of Surgery, University of British Columbia, Vancouver, Canada; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Jeff S J Yoon
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, BC V6H 3Z6, Canada; Department of Surgery, University of British Columbia, Vancouver, Canada; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Andrew Ming-Lum
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, BC V6H 3Z6, Canada; Department of Surgery, University of British Columbia, Vancouver, Canada
| | - Bernd R Gardill
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Soroush Shakibakho
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, BC V6H 3Z6, Canada; Department of Surgery, University of British Columbia, Vancouver, Canada
| | - Edis Dzananovic
- Department of Chemistry, University of Manitoba, Winnipeg, Canada
| | - Fuqiang Ban
- Department of Urological Sciences, University of British Columbia, Vancouver, Canada
| | - Abrar Samiea
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, BC V6H 3Z6, Canada; Department of Surgery, University of British Columbia, Vancouver, Canada
| | - Kamaldeep Jawanda
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, BC V6H 3Z6, Canada; Department of Surgery, University of British Columbia, Vancouver, Canada
| | - John Priatel
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - Gerald Krystal
- British Columbia Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - Christopher J Ong
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, BC V6H 3Z6, Canada; Department of Surgery, University of British Columbia, Vancouver, Canada; Department of Urological Sciences, University of British Columbia, Vancouver, Canada
| | - Artem Cherkasov
- Department of Urological Sciences, University of British Columbia, Vancouver, Canada
| | - Raymond J Andersen
- Department of Chemistry, University of British Columbia, Vancouver, Canada
| | - Sean A McKenna
- Department of Chemistry, University of Manitoba, Winnipeg, Canada
| | - Filip Van Petegem
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Alice L-F Mui
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, BC V6H 3Z6, Canada; Department of Surgery, University of British Columbia, Vancouver, Canada; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada.
| |
Collapse
|
31
|
Yoon JSJ, Wu MK, Zhu TH, Zhao H, Cheung ST, Chamberlain TC, Mui ALF. Interleukin-10 control of pre-miR155 maturation involves CELF2. PLoS One 2020; 15:e0231639. [PMID: 32324763 PMCID: PMC7179890 DOI: 10.1371/journal.pone.0231639] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 03/29/2020] [Indexed: 02/01/2023] Open
Abstract
The anti-inflammatory cytokine interleukin-10 (IL10) is essential for attenuating inflammatory responses, which includes reducing the expression of pro-inflammatory microRNA-155 (miR155) in lipopolysaccharide (LPS) activated macrophages. miR155 enhances the expression of pro-inflammatory cytokines such as TNFα and suppresses expression of anti-inflammatory molecules such as SHIP1 and SOCS1. We previously found that IL10 interfered with the maturation of pre-miR155 to miR155. To understand the mechanism by which IL10 interferes with pre-miR155 maturation we isolated proteins that associate with pre-miR155 in response to IL10 in macrophages. We identified CELF2, a member of the CUGBP, ELAV-Like Family (CELF) family of RNA binding proteins, as protein whose association with pre-miR155 increased in IL10 treated cells. CRISPR-Cas9 mediated knockdown of CELF2 impaired IL10’s ability to inhibit both miR155 expression and TNFα expression.
Collapse
Affiliation(s)
- Jeff S. J. Yoon
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, Canada
- Department of Surgery, University of British Columbia, Vancouver, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Mike K. Wu
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, Canada
- Department of Surgery, University of British Columbia, Vancouver, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Tian Hao Zhu
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Helen Zhao
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, Canada
| | - Sylvia T. Cheung
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, Canada
- Department of Surgery, University of British Columbia, Vancouver, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Thomas C. Chamberlain
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, Canada
- Department of Surgery, University of British Columbia, Vancouver, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
| | - Alice L-F. Mui
- Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, Canada
- Department of Surgery, University of British Columbia, Vancouver, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada
- * E-mail:
| |
Collapse
|
32
|
Viau A, Baaziz M, Aka A, Mazloum M, Nguyen C, Kuehn EW, Terzi F, Bienaimé F. Tubular STAT3 Limits Renal Inflammation in Autosomal Dominant Polycystic Kidney Disease. J Am Soc Nephrol 2020; 31:1035-1049. [PMID: 32238474 DOI: 10.1681/asn.2019090959] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 02/19/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The inactivation of the ciliary proteins polycystin 1 or polycystin 2 leads to autosomal dominant polycystic kidney disease (ADPKD). Although signaling by primary cilia and interstitial inflammation both play a critical role in the disease, the reciprocal interactions between immune and tubular cells are not well characterized. The transcription factor STAT3, a component of the cilia proteome that is involved in crosstalk between immune and nonimmune cells in various tissues, has been suggested as a factor fueling ADPKD progression. METHOD To explore how STAT3 intersects with cilia signaling, renal inflammation, and cyst growth, we used conditional murine models involving postdevelopmental ablation of Pkd1, Stat3, and cilia, as well as cultures of cilia-deficient or STAT3-deficient tubular cell lines. RESULTS Our findings indicate that, although primary cilia directly modulate STAT3 activation in vitro, the bulk of STAT3 activation in polycystic kidneys occurs through an indirect mechanism in which primary cilia trigger macrophage recruitment to the kidney, which in turn promotes Stat3 activation. Surprisingly, although inactivating Stat3 in Pkd1-deficient tubules slightly reduced cyst burden, it resulted in a massive infiltration of the cystic kidneys by macrophages and T cells, precluding any improvement of kidney function. We also found that Stat3 inactivation led to increased expression of the inflammatory chemokines CCL5 and CXCL10 in polycystic kidneys and cultured tubular cells. CONCLUSIONS STAT3 appears to repress the expression of proinflammatory cytokines and restrict immune cell infiltration in ADPKD. Our findings suggest that STAT3 is not a critical driver of cyst growth in ADPKD but rather plays a major role in the crosstalk between immune and tubular cells that shapes disease expression.
Collapse
Affiliation(s)
- Amandine Viau
- Growth and Signaling Department, Institut National de la Santé et de la Recherche Médicale (INSERM) U1151, Institute Necker Enfants Malades, Paris, France.,Paris University, Paris, France
| | - Maroua Baaziz
- Growth and Signaling Department, Institut National de la Santé et de la Recherche Médicale (INSERM) U1151, Institute Necker Enfants Malades, Paris, France.,Paris University, Paris, France
| | - Amandine Aka
- Growth and Signaling Department, Institut National de la Santé et de la Recherche Médicale (INSERM) U1151, Institute Necker Enfants Malades, Paris, France.,Paris University, Paris, France
| | - Manal Mazloum
- Growth and Signaling Department, Institut National de la Santé et de la Recherche Médicale (INSERM) U1151, Institute Necker Enfants Malades, Paris, France.,Paris University, Paris, France
| | - Clément Nguyen
- Growth and Signaling Department, Institut National de la Santé et de la Recherche Médicale (INSERM) U1151, Institute Necker Enfants Malades, Paris, France.,Paris University, Paris, France
| | - E Wolfgang Kuehn
- Renal Department, University Medical Center, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Center for Biological Signaling Studies (BIOSS), Albert Ludwig University of Freiburg, Freiburg, Germany
| | - Fabiola Terzi
- Growth and Signaling Department, Institut National de la Santé et de la Recherche Médicale (INSERM) U1151, Institute Necker Enfants Malades, Paris, France.,Paris University, Paris, France
| | - Frank Bienaimé
- Growth and Signaling Department, Institut National de la Santé et de la Recherche Médicale (INSERM) U1151, Institute Necker Enfants Malades, Paris, France .,Paris University, Paris, France.,Department of Physiology, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| |
Collapse
|
33
|
Gibbs KD, Washington EJ, Jaslow SL, Bourgeois JS, Foster MW, Guo R, Brennan RG, Ko DC. The Salmonella Secreted Effector SarA/SteE Mimics Cytokine Receptor Signaling to Activate STAT3. Cell Host Microbe 2019; 27:129-139.e4. [PMID: 31901521 DOI: 10.1016/j.chom.2019.11.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/05/2019] [Accepted: 11/21/2019] [Indexed: 01/18/2023]
Abstract
Bacteria masterfully co-opt and subvert host signal transduction. As a paradigmatic example, Salmonella uses two type-3 secretion systems to inject effector proteins that facilitate Salmonella entry, establishment of an intracellular niche, and modulation of immune responses. We previously demonstrated that the Salmonella anti-inflammatory response activator SarA (Stm2585, GogC, PagJ, SteE) activates the host transcription factor STAT3 to drive expression of immunomodulatory STAT3-targets. Here, we demonstrate-by sequence, function, and biochemical measurement-that SarA mimics the cytoplasmic domain of glycoprotein 130 (gp130, IL6ST). SarA is phosphorylated at a YxxQ motif, facilitating binding to STAT3 with greater affinity than gp130. Departing from canonical gp130 signaling, SarA function is JAK-independent but requires GSK-3, a key regulator of metabolism and development. Our results reveal that SarA undergoes host phosphorylation to recruit a STAT3-activating complex, circumventing cytokine receptor activation. Effector mimicry of gp130 suggests GSK-3 can regulate normal cytokine signaling, potentially enabling metabolic and immune crosstalk.
Collapse
Affiliation(s)
- Kyle D Gibbs
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA
| | - Erica J Washington
- Department of Biochemistry, School of Medicine, Duke University, Durham, NC 27710, USA
| | - Sarah L Jaslow
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA
| | - Jeffrey S Bourgeois
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA; Duke University Program in Genetics and Genomics, Duke University, Durham, NC 27710, USA
| | - Matthew W Foster
- Duke Proteomics and Metabolomics Shared Resource, Duke University Medical Center, Durham, NC 27710, USA
| | - Robyn Guo
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA
| | - Richard G Brennan
- Department of Biochemistry, School of Medicine, Duke University, Durham, NC 27710, USA
| | - Dennis C Ko
- Department of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC 27710, USA; Duke University Program in Genetics and Genomics, Duke University, Durham, NC 27710, USA; Division of Infectious Diseases, Department of Medicine, School of Medicine, Duke University, Durham, NC 27710, USA.
| |
Collapse
|
34
|
Wang H, Yuan M, Wang S, Zhang L, Zhang R, Zou X, Wang X, Chen D, Wu Z. STAT3 Regulates the Type I IFN-Mediated Antiviral Response by Interfering with the Nuclear Entry of STAT1. Int J Mol Sci 2019; 20:ijms20194870. [PMID: 31575039 PMCID: PMC6801597 DOI: 10.3390/ijms20194870] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/24/2019] [Accepted: 09/28/2019] [Indexed: 12/15/2022] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) is a multifunctional factor that regulates inflammation and immunity. Knowledge of its regulatory mechanisms is very limited. Here, we showed that enterovirus 71 (EV71) infection induced the phosphorylation of STAT3 and the expression of its downstream inflammatory regulators. Knockdown of STAT3 with siRNAs significantly restricted viral RNA and protein levels, and also reduced viral titers. With further investigation, we found that importin α family member Karyopherin-α1 (KPNA1) was employed by both STAT1 and STAT3 for their nuclear import. The phosphorylated and un-phosphorylated STAT3 competed with STAT1 for binding to the decreased KPNA1 post infection and repressed downstream ISG expression. STAT3 knockdown alleviated the repressed type I IFN-mediated antiviral response upon infection and led to decreased viral replication. Taken together, our data suggested the role of STAT3 in maintaining the balance of inflammation and antiviral responses in the central nervous system (CNS) upon infection.
Collapse
Affiliation(s)
- Huanru Wang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Meng Yuan
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Shuaibo Wang
- Jinling College, Nanjing University, Nanjing 210089, China.
| | - Li Zhang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Rui Zhang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Xue Zou
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Xiaohui Wang
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Deyan Chen
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Zhiwei Wu
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
- State Key Lab of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210023, China.
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing 210093, China.
| |
Collapse
|
35
|
Carter CJ. Autism genes and the leukocyte transcriptome in autistic toddlers relate to pathogen interactomes, infection and the immune system. A role for excess neurotrophic sAPPα and reduced antimicrobial Aβ. Neurochem Int 2019; 126:36-58. [PMID: 30862493 DOI: 10.1016/j.neuint.2019.03.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 02/22/2019] [Accepted: 03/06/2019] [Indexed: 12/20/2022]
Abstract
Prenatal and early childhood infections have been implicated in autism. Many autism susceptibility genes (206 Autworks genes) are localised in the immune system and are related to immune/infection pathways. They are enriched in the host/pathogen interactomes of 18 separate microbes (bacteria/viruses and fungi) and to the genes regulated by bacterial toxins, mycotoxins and Toll-like receptor ligands. This enrichment was also observed for misregulated genes from a microarray study of leukocytes from autistic toddlers. The upregulated genes from this leukocyte study also matched the expression profiles in response to numerous infectious agents from the Broad Institute molecular signatures database. They also matched genes related to sudden infant death syndrome and autism comorbid conditions (autoimmune disease, systemic lupus erythematosus, diabetes, epilepsy and cardiomyopathy) as well as to estrogen and thyrotropin responses and to those upregulated by different types of stressors including oxidative stress, hypoxia, endoplasmic reticulum stress, ultraviolet radiation or 2,4-dinitrofluorobenzene, a hapten used to develop allergic skin reactions in animal models. The oxidative/integrated stress response is also upregulated in the autism brain and may contribute to myelination problems. There was also a marked similarity between the expression signatures of autism and Alzheimer's disease, and 44 shared autism/Alzheimer's disease genes are almost exclusively expressed in the blood-brain barrier. However, in contrast to Alzheimer's disease, levels of the antimicrobial peptide beta-amyloid are decreased and the levels of the neurotrophic/myelinotrophic soluble APP alpha are increased in autism, together with an increased activity of α-secretase. sAPPα induces an increase in glutamatergic and a decrease in GABA-ergic synapses creating and excitatory/inhibitory imbalance that has also been observed in autism. A literature survey showed that multiple autism genes converge on APP processing and that many are able to increase sAPPalpha at the expense of beta-amyloid production. A genetically programmed tilt of this axis towards an overproduction of neurotrophic/gliotrophic sAPPalpha and underproduction of antimicrobial beta-amyloid may explain the brain overgrowth and myelination dysfunction, as well as the involvement of pathogens in autism.
Collapse
Affiliation(s)
- C J Carter
- PolygenicPathways, 41C Marina, Saint Leonard's on Sea, TN38 0BU, East Sussex, UK.
| |
Collapse
|
36
|
Huynh J, Chand A, Gough D, Ernst M. Therapeutically exploiting STAT3 activity in cancer - using tissue repair as a road map. Nat Rev Cancer 2019; 19:82-96. [PMID: 30578415 DOI: 10.1038/s41568-018-0090-8] [Citation(s) in RCA: 313] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The tightly orchestrated temporal and spatial control of signal transducer and activator of transcription 3 (STAT3) activity in epithelial, immune and stromal cells is critical for wound healing and tissue repair. Excessive STAT3 activation within cancer cells and cells of the tumour microenvironment can be viewed as a neoplastic mimic of an inflammation-driven repair response that collectively promotes tumour progression. In addition to the canonical transcriptional pathways by which STAT3 promotes stem cell-like characteristics, survival, proliferation, metastatic potential and immune evasion, cytoplasmic STAT3 activity fuels tumour growth by metabolic and other non-transcriptional mechanisms. Here, we review the tumour-modulating activities of STAT3 in light of its role as a signalling node integrating inflammatory responses during wound healing. Accordingly, many of the cytokines that contribute to the para-inflammatory state of most solid malignancies converge on and underpin dysregulated STAT3 activity. Targeting of these cytokines, their cognate receptors and associated signalling cascades in clinical trials is beginning to demonstrate therapeutic efficacy, given that interference with STAT3 activity is likely to simultaneously curb the growth of cancer cells and augment antitumour immunity.
Collapse
Affiliation(s)
- Jennifer Huynh
- Olivia Newton-John Cancer Research Institute and La Trobe University School of Cancer Medicine, Heidelberg, Victoria, Australia
| | - Ashwini Chand
- Olivia Newton-John Cancer Research Institute and La Trobe University School of Cancer Medicine, Heidelberg, Victoria, Australia
| | - Daniel Gough
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, Victoria, Australia.
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia.
| | - Matthias Ernst
- Olivia Newton-John Cancer Research Institute and La Trobe University School of Cancer Medicine, Heidelberg, Victoria, Australia.
| |
Collapse
|
37
|
Tong Y, Zhou L, Yang L, Guo P, Cao Y, Qin FXF, Liu J. Concomitant type I IFN and M-CSF signaling reprograms monocyte differentiation and drives pro-tumoral arginase production. EBioMedicine 2018; 39:132-144. [PMID: 30528455 PMCID: PMC6354658 DOI: 10.1016/j.ebiom.2018.11.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 11/19/2018] [Accepted: 11/28/2018] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Type I IFN-based therapies against solid malignancies have yielded only limited success. How IFN affects tumor-associated macrophage (TAM) compartment to impact the therapeutic outcomes are not well understood. METHODS The effect of an IFN-inducer poly(I:C) on tumor-infiltrating monocytes and TAMs were analyzed using a transplantable mouse tumor model (LLC). In vitro culture systems were utilized to study the direct actions by poly(I:C)-IFN on differentiating monocytes. RESULTS We found that poly(I:C)-induced IFN targets Ly6C+ monocytes and impedes their transition into TAMs. Such an effect involves miR-155-mediated suppression of M-CSF receptor expression, contributing to restricting tumor growth. Remarkably, further analyses of gene expression profile of IFN-treated differentiating monocytes reveal a strong induction of Arg1 (encoding arginase-1) in addition to other classical IFN targets. Mechanistically, the unexpected Arg1 arm of IFN action is mediated by a prolonged STAT3 signaling in monocytes, in conjunction with elevated macrophage colony-stimulating factor (M-CSF) signaling. Functionally, induction of ARG1 limited the therapeutic effect of IFN, as inhibition of arginase activity could strongly synergize with poly(I:C) to enhance CD8+ T cell responses to thwart tumor growth in mice. CONCLUSIONS Taken together, we have uncovered two functionally opposing actions by IFN on the TAM compartment. Our work provides significant new insights on IFN-mediated immunoregulation that may have implications in cancer therapies.
Collapse
Affiliation(s)
- Yuanyuan Tong
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing 210061, China
| | - Luyang Zhou
- Department of Anesthesiology, Nanjing Gulou Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Limin Yang
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing 210061, China
| | - Panpan Guo
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing 210061, China
| | - Yanlan Cao
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing 210061, China
| | - F Xiao-Feng Qin
- Center of Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, China
| | - Jianghuai Liu
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing 210061, China.
| |
Collapse
|
38
|
Wu HY, Mao XF, Tang XQ, Ali U, Apryani E, Liu H, Li XY, Wang YX. Spinal interleukin-10 produces antinociception in neuropathy through microglial β-endorphin expression, separated from antineuroinflammation. Brain Behav Immun 2018; 73:504-519. [PMID: 29928964 DOI: 10.1016/j.bbi.2018.06.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/30/2018] [Accepted: 06/15/2018] [Indexed: 12/17/2022] Open
Abstract
Interleukin 10 (IL-10) is antinociceptive in various animal models of pain without induction of tolerance, and its mechanism of action was generally believed to be mediated by inhibition of neuroinflammation. Here we reported that intrathecal IL-10 injection dose dependently attenuated mechanical allodynia and thermal hyperalgesiain male and female neuropathic rats, with ED50 values of 40.8 ng and 24 ng, and Emax values of 61.5% MPE and 100% MPE in male rats. Treatment with IL-10 specifically increased expression of the β-endorphin (but not prodynorphin) gene and protein in primary cultures of spinal microglia but not in astrocytes or neurons. Intrathecal injection of IL-10 stimulated β-endorphin expression from microglia but not neurons or astrocytes in both contralateral and ipsilateral spinal cords of neuropathic rats. However, intrathecal injection of the β-endorphin neutralizing antibody, opioid receptor antagonist naloxone, or μ-opioid receptor antagonist CTAP completely blocked spinal IL-10-induced mechanical antiallodynia, while the microglial inhibitor minocycline and specific microglia depletor reversed spinal IL-10-induced β-endorphin overexpression and mechanical antiallodynia. IL-10 treatment increased spinal microglial STAT3 phosphorylation, and the STAT3 inhibitor NSC74859 completely reversed IL-10-increased spinal expression of β-endorphin and neuroinflammatory cytokines and mechanical antiallodynia. Silence of the Bcl3 and Socs3 genes nearly fully reversed IL-10-induced suppression of neuroinflammatory cytokines (but not expression of β-endorphin), although it had no effect on mechanical allodynia. In contrast, disruption of the POMC gene completely blocked IL-10-stimulated β-endorphin expression and mechanical antiallodynia, but had no effect on IL-10 inhibited expression of neuroinflammatory cytokines. Thus this study revealed that IL-10 produced antinociception through spinal microglial β-endorphin expression, but not inhibition of neuroinflammation.
Collapse
Affiliation(s)
- Hai-Yun Wu
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai 200240, China
| | - Xiao-Fang Mao
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai 200240, China
| | - Xue-Qi Tang
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai 200240, China
| | - Usman Ali
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai 200240, China
| | - Evhy Apryani
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai 200240, China
| | - Hao Liu
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai 200240, China
| | - Xin-Yan Li
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai 200240, China
| | - Yong-Xiang Wang
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai 200240, China.
| |
Collapse
|
39
|
Fumagalli M, Lombardi M, Gressens P, Verderio C. How to reprogram microglia toward beneficial functions. Glia 2018; 66:2531-2549. [PMID: 30195261 PMCID: PMC6585737 DOI: 10.1002/glia.23484] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/13/2018] [Accepted: 06/13/2018] [Indexed: 12/13/2022]
Abstract
Microglia, brain cells of nonneural origin, orchestrate the inflammatory response to diverse insults, including hypoxia/ischemia or maternal/fetal infection in the perinatal brain. Experimental studies have demonstrated the capacity of microglia to recognize pathogens or damaged cells activating a cytotoxic response that can exacerbate brain damage. However, microglia display an enormous plasticity in their responses to injury and may also promote resolution stages of inflammation and tissue regeneration. Despite the critical role of microglia in brain pathologies, the cellular mechanisms that govern the diverse phenotypes of microglia are just beginning to be defined. Here we review emerging strategies to drive microglia toward beneficial functions, selectively reporting the studies which provide insights into molecular mechanisms underlying the phenotypic switch. A variety of approaches have been proposed which rely on microglia treatment with pharmacological agents, cytokines, lipid messengers, or microRNAs, as well on nutritional approaches or therapies with immunomodulatory cells. Analysis of the molecular mechanisms relevant for microglia reprogramming toward pro‐regenerative functions points to a central role of energy metabolism in shaping microglial functions. Manipulation of metabolic pathways may thus provide new therapeutic opportunities to prevent the deleterious effects of inflammatory microglia and to control excessive inflammation in brain disorders.
Collapse
Affiliation(s)
- Marta Fumagalli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, via Balzaretti, 9 -20133, Milan, Italy
| | | | - Pierre Gressens
- PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, 1141 Paris, France.,Centre for the Developing Brain, Department of Perinatal Health and Imaging, Division of Imaging Sciences and Biomedical Engineering, King's College London, King's Health Partners, St. Thomas' Hospital, London, SE1 7EH, United Kingdom
| | - Claudia Verderio
- IRCCS Humanitas, via Manzoni 56, 20089, Rozzano, Italy.,CNR Institute of Neuroscience, via Vanvitelli 32, 20129 Milan, Italy
| |
Collapse
|
40
|
Dhapare S, Li H, Sakagami M. Salvianolic acid B as an anti-emphysema agent II: In vivo reversal activities in two rat models of emphysema. Pulm Pharmacol Ther 2018; 53:52-60. [PMID: 30193865 DOI: 10.1016/j.pupt.2018.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 08/03/2018] [Accepted: 09/03/2018] [Indexed: 11/18/2022]
Abstract
Emphysema progressively destroys alveolar structures, leading to disability and death, yet remains irreversible and incurable to date. Impaired vascular endothelial growth factor (VEGF) signaling is an emerging pathogenic mechanism, thereby proposing a hypothesis that VEGF stimulation/elevation enables recovery from alveolar structural destruction and loss of emphysema. Our previous in vitro study identified that salvianolic acid B (Sal-B), a polyphenol of traditional Chinese herbal danshen, stimulated lung cell proliferation and migration, and protected against induced lung cell death, by virtue of signal transducer and activator of transcription 3 (STAT3) activation and VEGF stimulation/elevation. Thus, this study examined Sal-B for in vivo therapeutic reversal of established emphysema in two rat models. Emphysema was induced with porcine pancreatic elastase (PPE) and cigarette smoke extract (CSE), and established by day 21. Sal-B was then spray-dosed to the lung three times weekly for three weeks. Functional treadmill exercise endurance; morphological airspace enlargement and alveolar destruction; apoptosis, cell proliferation and tissue matrix proteins; phosphorylated STAT3 (pSTAT3) and VEGF expressions; neutrophil accumulation; and lipid peroxidation were determined. In both models, Sal-B at 0.2 mg/kg significantly reversed impaired exercise endurance by 80 and 64%; airspace enlargement [mean linear intercept (MLI)] by 56 and 67%; and alveolar destructive index (%DI) by 63 and 66%, respectively. Induced apoptosis activity [cleaved caspase-3] was normalized by 94 and 82%; and cell proliferation activity [proliferative cell nuclear antigen (PCNA)] was stimulated by 1.6 and 2.1-fold. In the PPE-induced model, Sal-B reduced induction of lung's matrix metalloproteinase (MMP)-9 and MMP-2 activities by 59 and 94%, respectively, and restored pSTAT3 and VEGF expressions to the healthy lung levels, while leaving neutrophil accumulation unchecked [myeloperoxidase (MPO) activity]. In the CSE-induced model, Sal-B elevated pSTAT3 and VEGF expressions both by 1.8-fold over the healthy lung levels, and normalized induced lipid peroxidation [malondialdehyde (MDA) activity] by 68%. These results provide an in vivo proof-of-concept for Sal-B as one of the first anti-emphysema agents enabling reversal of alveolar structural destruction and loss via local lung treatment by virtue of its STAT3 activation and VEGF stimulation.
Collapse
Affiliation(s)
- Sneha Dhapare
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, 410 N. 12th Street, P. O. Box 980533, Richmond, VA, 23298, USA.
| | - Hua Li
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, 410 N. 12th Street, P. O. Box 980533, Richmond, VA, 23298, USA.
| | - Masahiro Sakagami
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, 410 N. 12th Street, P. O. Box 980533, Richmond, VA, 23298, USA.
| |
Collapse
|
41
|
Samanta S, Zhou Z, Rajasingh S, Panda A, Sampath V, Rajasingh J. DNMT and HDAC inhibitors together abrogate endotoxemia mediated macrophage death by STAT3-JMJD3 signaling. Int J Biochem Cell Biol 2018; 102:117-127. [PMID: 30010012 PMCID: PMC6309960 DOI: 10.1016/j.biocel.2018.07.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 06/30/2018] [Accepted: 07/11/2018] [Indexed: 12/11/2022]
Abstract
Acute lung injury (ALI) is a common complication of sepsis that often leads to fatal lung disease without effective therapies. It is known that bone marrow derived macrophages are important in resolving the inflammation and maintaining tissue homeostasis. Here, we hypothesize that treatment in combination of DNA methyl transferase inhibitor (DNMTi) 5-Aza 2-deoxycytidine (Aza) and histone deacetylase inhibitor (HDACi) Trichostatin A (TSA) mitigates the inflammation induced pyroptosis and apoptosis during endotoxemia induced ALI. To test this hypothesis, the mice challenged with a sublethal dose of LPS followed by one-hour post-treatment with a single dose of Aza and TSA intraperitoneally showed a substantial attenuation of apoptosis and inflammation. Importantly, we observed significant changes in the mitochondrial membrane structure, and lower levels of DNA fragmentation, reduced expression of apoptotic and pyroptotic genes both transcriptionally and translationally in LPS induced BMDMs treated by a combination of Aza and TSA than in LPS-induced BMDMs treated with either drug alone. The protection was mediated by an inhibition of JNK-ERK and STAT3-JMJD3 activated pathways. Thus, targeting these important signaling pathways with the combination of Aza and TSA would be a good treatment modality for ALI.
Collapse
Affiliation(s)
- Saheli Samanta
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Zhigang Zhou
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA; Department of Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, 201620, China
| | - Sheeja Rajasingh
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Arunima Panda
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Venkatesh Sampath
- Department of Pediatrics, Division of Neonatology, Children's Mercy Hospital, Kansas City, MO, USA
| | - Johnson Rajasingh
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA; Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA.
| |
Collapse
|
42
|
Samanta S, Rajasingh S, Drosos N, Zhou Z, Dawn B, Rajasingh J. Exosomes: new molecular targets of diseases. Acta Pharmacol Sin 2018; 39:501-513. [PMID: 29219950 PMCID: PMC5888687 DOI: 10.1038/aps.2017.162] [Citation(s) in RCA: 272] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 09/12/2017] [Indexed: 02/06/2023] Open
Abstract
Extracellular vesicles (EVs) comprise apoptotic bodies, microvesicles and exosomes, and they perform as key regulators in cell-to-cell communication in normal as well as diseased states. EVs contain natural cargo molecules, such as miRNA, mRNA and proteins, and transfer these functional cargos to neighboring cells or more distant cells through circulation. These functionally active molecules then affect distinct signaling cascades. The message conveyed to the recipient cells is dependent upon the composition of the EV, which is determined by the parent cell and the EV biogenesis. Because of their properties such as increased stability in circulation, biocompatibility, low immunogenicity and toxicity, EVs have drawn attention as attractive delivery systems for therapeutics. This review focuses on the functional use of exosomes in therapy and the potential advantages and challenges in using exosomes for therapeutic purposes.
Collapse
Affiliation(s)
- Saheli Samanta
- Cardiovascular Research Institute, Division of Cardiovascular Diseases, Department of Internal Medicine
| | - Sheeja Rajasingh
- Cardiovascular Research Institute, Division of Cardiovascular Diseases, Department of Internal Medicine
| | - Nicholas Drosos
- Cardiovascular Research Institute, Division of Cardiovascular Diseases, Department of Internal Medicine
| | - Zhigang Zhou
- Cardiovascular Research Institute, Division of Cardiovascular Diseases, Department of Internal Medicine
| | - Buddhadeb Dawn
- Cardiovascular Research Institute, Division of Cardiovascular Diseases, Department of Internal Medicine
| | - Johnson Rajasingh
- Cardiovascular Research Institute, Division of Cardiovascular Diseases, Department of Internal Medicine
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| |
Collapse
|
43
|
Zhang H, Li HS, Hillmer EJ, Zhao Y, Chrisikos TT, Hu H, Wu X, Thompson EJ, Clise-Dwyer K, Millerchip KA, Wei Y, Puebla-Osorio N, Kaushik S, Santos MA, Wang B, Garcia-Manero G, Wang J, Sun SC, Watowich SS. Genetic rescue of lineage-balanced blood cell production reveals a crucial role for STAT3 antiinflammatory activity in hematopoiesis. Proc Natl Acad Sci U S A 2018; 115:E2311-E2319. [PMID: 29463696 PMCID: PMC5878002 DOI: 10.1073/pnas.1713889115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Blood cell formation must be appropriately maintained throughout life to provide robust immune function, hemostasis, and oxygen delivery to tissues, and to prevent disorders that result from over- or underproduction of critical lineages. Persistent inflammation deregulates hematopoiesis by damaging hematopoietic stem and progenitor cells (HSPCs), leading to elevated myeloid cell output and eventual bone marrow failure. Nonetheless, antiinflammatory mechanisms that protect the hematopoietic system are understudied. The transcriptional regulator STAT3 has myriad roles in HSPC-derived populations and nonhematopoietic tissues, including a potent antiinflammatory function in differentiated myeloid cells. STAT3 antiinflammatory activity is facilitated by STAT3-mediated transcriptional repression of Ube2n, which encodes the E2 ubiquitin-conjugating enzyme Ubc13 involved in proinflammatory signaling. Here we demonstrate a crucial role for STAT3 antiinflammatory activity in preservation of HSPCs and lineage-balanced hematopoiesis. Conditional Stat3 removal from the hematopoietic system led to depletion of the bone marrow lineage- Sca-1+ c-Kit+ CD150+ CD48- HSPC subset (LSK CD150+ CD48- cells), myeloid-skewed hematopoiesis, and accrual of DNA damage in HSPCs. These responses were accompanied by intrinsic transcriptional alterations in HSPCs, including deregulation of inflammatory, survival and developmental pathways. Concomitant Ube2n/Ubc13 deletion from Stat3-deficient hematopoietic cells enabled lineage-balanced hematopoiesis, mitigated depletion of bone marrow LSK CD150+ CD48- cells, alleviated HSPC DNA damage, and corrected a majority of aberrant transcriptional responses. These results indicate an intrinsic protective role for STAT3 in the hematopoietic system, and suggest that this is mediated by STAT3-dependent restraint of excessive proinflammatory signaling via Ubc13 modulation.
Collapse
Affiliation(s)
- Huiyuan Zhang
- Department of Immunology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Haiyan S Li
- Department of Immunology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Emily J Hillmer
- Department of Immunology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Yang Zhao
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Taylor T Chrisikos
- Department of Immunology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
- The University of Texas Graduate School of Biomedical Sciences, Houston, TX 77030
| | - Hongbo Hu
- Department of Immunology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Xiao Wu
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Erika J Thompson
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Karen Clise-Dwyer
- Department of Stem Cell Transplantation Research, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Karen A Millerchip
- Department of Immunology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Yue Wei
- Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Nahum Puebla-Osorio
- Department of Lymphoma and Myeloma, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Saakshi Kaushik
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Margarida A Santos
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Bin Wang
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | | | - Jing Wang
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Shao-Cong Sun
- Department of Immunology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
- The University of Texas Graduate School of Biomedical Sciences, Houston, TX 77030
| | - Stephanie S Watowich
- Department of Immunology, University of Texas MD Anderson Cancer Center, Houston, TX 77030;
- The University of Texas Graduate School of Biomedical Sciences, Houston, TX 77030
| |
Collapse
|
44
|
Zhang Z, Jyoti A, Balakrishnan B, Williams M, Singh S, Chugani DC, Kannan S. Trajectory of inflammatory and microglial activation markers in the postnatal rabbit brain following intrauterine endotoxin exposure. Neurobiol Dis 2017; 111:153-162. [PMID: 29274431 DOI: 10.1016/j.nbd.2017.12.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 11/17/2017] [Accepted: 12/19/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Maternal infection is a risk factor for periventricular leukomalacia and cerebral palsy (CP) in neonates. We have previously demonstrated hypomyelination and motor deficits in newborn rabbits, as seen in patients with cerebral palsy, following maternal intrauterine endotoxin administration. This was associated with increased microglial activation, primarily involving the periventricular region (PVR). In this study we hypothesized that maternal intrauterine inflammation leads to a pro-inflammatory environment in the PVR that is associated with microglial activation in the first 2 postnatal weeks. METHODS Timed pregnant New Zealand white rabbits underwent laparotomy on gestational day 28 (G28). They were randomly divided to receive lipopolysaccharide (LPS; 20μg/kg in 1mL saline) (Endotoxin group) or saline (1mL) (control saline, CS group), administrated along the wall of the uterus. The PVR from the CS and Endotoxin kits were harvested at G29 (1day post-injury), postnatal day1 (PND1, 3day post-injury) and PND5 (7days post-injury) for real-time PCR, ELISA and immunohistochemistry. Kits from CS and Endotoxin groups underwent longitudinal MicroPET imaging, with [11C]PK11195, a tracer for microglial activation. RESULTS We found that intrauterine endotoxin exposure resulted in pro-inflammatory microglial activation in the PVR of rabbits in the first postnatal week. This was evidenced by increased TSPO (translocator protein) expression co-localized with microglia/macrophages in the PVR, and changes in the microglial morphology (ameboid soma and retracted processes). In addition, CD11b level significantly increased with a concomitant decline in the CD45 level in the PVR at G29 and PND1. There was a significant elevation of pro-inflammatory cytokines and iNOS, and decreased anti-inflammatory markers in the Endotoxin kits at G29, PND1 and PND5. Increased [11C]PK11195 binding to the TSPO measured in vivo by PET imaging in the brain of Endotoxin kits was present up to PND14-17. CONCLUSIONS Our results indicate that a robust pro-inflammatory microglial phenotype/brain milieu commenced within 24h after LPS exposure and persisted through PND5 and in vivo TSPO binding was found at PND14-17. This suggests that there may be a window of opportunity to treat after birth. Therapies aimed at inducing an anti-inflammatory phenotype in microglia might promote recovery in maternal inflammation induced neonatal brain injury.
Collapse
Affiliation(s)
- Zhi Zhang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, United States
| | - Amar Jyoti
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, United States
| | - Bindu Balakrishnan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, United States
| | - Monica Williams
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, United States
| | - Sarabdeep Singh
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, United States
| | - Diane C Chugani
- Nemours/AI duPont Hospital for Children, Wilmington, DE, United States; Communication Sciences and Disorders Department, University of Delaware, Newark, DE, United States
| | - Sujatha Kannan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, United States.
| |
Collapse
|
45
|
Pierog PL, Zhao Y, Singh S, Dai J, Yap GS, Fitzgerald-Bocarsly P. Toxoplasma gondii Inactivates Human Plasmacytoid Dendritic Cells by Functional Mimicry of IL-10. THE JOURNAL OF IMMUNOLOGY 2017; 200:186-195. [PMID: 29180487 DOI: 10.4049/jimmunol.1701045] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/20/2017] [Indexed: 01/07/2023]
Abstract
Plasmacytoid dendritic cells (pDCs) are the major producers of IFN-α, an antiviral cytokine involved in immunomodulation and control of HIV type 1 replication, whereas Toxoplasma gondii is a life-threatening opportunistic infection in AIDS patients. During infection with HIV type 1, human pDCs decrease in circulation and remaining pDC produce lower amounts of IFN-α in response to viral stimulation. In this study, we investigated the impact of coinfection with T. gondii on the innate virus-directed responses of human pDCs. Using intracellular flow cytometry and fluorescence microscopy, we determined that T. gondii invaded but did not induce IFN-α or TNF-α in human pDC. However, T. gondii inhibited IFN-α and TNF-α produced in response to HSV and HIV, thus functionally inactivating pDC. IFN-α production was inhibited only in cells infected by T. gondii, which inhibited neither uptake of GFP-HSV nor localization of TLR9 in CD71+ endosomes, directing us to investigate downstream events. Using imaging flow cytometry, we found that both T. gondii and IL-10 inhibited virus-induced nuclear translocation, but not phosphorylation, of IFN response factor 7. Blockade of IFN response factor 7 nuclear translocation and inhibition of the IFN-α response was partially reversed by a deficiency in the T. gondii-derived ROP16 kinase, known to directly phosphorylate STAT3, a critical mediator of IL-10's anti-inflammatory effects. Taken together, our results indicate that T. gondii suppresses pDC activation by mimicking IL-10's regulatory effects through an ROP16 kinase-dependent mechanism. Our findings further imply a convergent mechanism of inhibition of TLR signaling by T. gondii and IL-10 and suggest potential negative consequences of HIV/T. gondii coinfection.
Collapse
Affiliation(s)
- Piotr L Pierog
- Department of Pathology and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103.,Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103.,Rutgers School of Graduate Studies, Newark, NJ 07103; and
| | - Yanlin Zhao
- Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103.,Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103
| | - Sukhwinder Singh
- Department of Pathology and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103
| | - Jihong Dai
- Department of Pathology and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103.,Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103
| | - George S Yap
- Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103.,Rutgers School of Graduate Studies, Newark, NJ 07103; and.,Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103
| | - Patricia Fitzgerald-Bocarsly
- Department of Pathology and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103; .,Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103.,Rutgers School of Graduate Studies, Newark, NJ 07103; and
| |
Collapse
|
46
|
Zheng L, Kelly CJ, Battista KD, Schaefer R, Lanis JM, Alexeev EE, Wang RX, Onyiah JC, Kominsky DJ, Colgan SP. Microbial-Derived Butyrate Promotes Epithelial Barrier Function through IL-10 Receptor-Dependent Repression of Claudin-2. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2017; 199:2976-2984. [PMID: 28893958 PMCID: PMC5636678 DOI: 10.4049/jimmunol.1700105] [Citation(s) in RCA: 319] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 08/16/2017] [Indexed: 12/21/2022]
Abstract
Commensal interactions between the enteric microbiota and distal intestine play important roles in regulating human health. Short-chain fatty acids (SCFAs), such as butyrate, produced through anaerobic microbial metabolism represent a major energy source for the host colonic epithelium and enhance epithelial barrier function through unclear mechanisms. Separate studies revealed that the epithelial anti-inflammatory IL-10 receptor α subunit (IL-10RA) is also important for barrier formation. Based on these findings, we examined if SCFAs promote epithelial barrier through IL-10RA-dependent mechanisms. Using human intestinal epithelial cells (IECs), we discovered that SCFAs, particularly butyrate, enhanced IEC barrier formation, induced IL-10RA mRNA, IL-10RA protein, and transactivation through activated Stat3 and HDAC inhibition. Loss and gain of IL-10RA expression directly correlates with IEC barrier formation and butyrate represses permeability-promoting claudin-2 tight-junction protein expression through an IL-10RA-dependent mechanism. Our findings provide a novel mechanism by which microbial-derived butyrate promotes barrier through IL-10RA-dependent repression of claudin-2.
Collapse
Affiliation(s)
- Leon Zheng
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Caleb J Kelly
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Kayla D Battista
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Rachel Schaefer
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Jordi M Lanis
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Erica E Alexeev
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Ruth X Wang
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Joseph C Onyiah
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Douglas J Kominsky
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717; and
| | - Sean P Colgan
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045;
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
- Department of Immunology, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| |
Collapse
|
47
|
Han HM, Ko S, Cheong MJ, Bang JK, Seo CH, Luchian T, Park Y. Myxinidin2 and myxinidin3 suppress inflammatory responses through STAT3 and MAPKs to promote wound healing. Oncotarget 2017; 8:87582-87597. [PMID: 29152103 PMCID: PMC5675655 DOI: 10.18632/oncotarget.20908] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 08/27/2017] [Indexed: 02/07/2023] Open
Abstract
Skin wounds are continuously exposed to bacteria and can easily become infected. Infected wounds require antibiotic treatment, and infections caused by drug-resistant bacteria are an important public health problem. Antimicrobial peptides have broad-spectrum antibacterial activity, induce little or no drug resistance and may be suitable for treating skin infections caused by drug-resistant bacteria. We previously reported the design and function of myxinidin and myxinidin analogues. Here we showed that myxinidin2 and myxinidin3 exhibit antimicrobial and anti-biofilm activities against antibiotic-resistant Staphylococcus aureus, Acinetobacter baumannii, and Pseudomonas aeruginosa in high salt environments and in gelatin. Moreover, these peptides facilitated infected wound healing by decreasing inflammation through suppression of IL-6, IL-8, and TNF-α and regulation of downstream mediators such as STAT3, p38, JNK, and EGFR. In a mouse skin wound model infected with antibiotic-resistant bacteria, myxinidin2 and myxinidin3 eliminated the infection and enhanced wound healing. We therefore propose the use of these peptides for treating infected wounds and burns.
Collapse
Affiliation(s)
- Hyo Mi Han
- Department of Biomedical Science, Chosun University, Gwangju, Korea
| | - Sujin Ko
- Department of Biomedical Science, Chosun University, Gwangju, Korea
| | - Min-Ju Cheong
- Department of Life Science, Chosun University, Gwangju, Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Korea
| | - Chang Ho Seo
- Department of Bioinformatics, Kongju National University, Kongju, Korea
| | - Tudor Luchian
- Department of Physics, Alexandru I. Cuza University, Iasi, Romania
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju, Korea.,Research Center for Proteinaceous Materials, Chosun University, Gwangju, Korea
| |
Collapse
|
48
|
Kwon SH, Han JK, Choi M, Kwon YJ, Kim SJ, Yi EH, Shin JC, Cho IH, Kim BH, Jeong Kim S, Ye SK. Dysfunction of Microglial STAT3 Alleviates Depressive Behavior via Neuron-Microglia Interactions. Neuropsychopharmacology 2017; 42:2072-2086. [PMID: 28480882 PMCID: PMC5561349 DOI: 10.1038/npp.2017.93] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 04/27/2017] [Accepted: 05/01/2017] [Indexed: 12/22/2022]
Abstract
Neuron-microglia interactions have a crucial role in maintaining the neuroimmune system. The balance of neuroimmune system has emerged as an important process in the pathophysiology of depression. However, how neuron-microglia interactions contribute to major depressive disorders has been poorly understood. Herein, we demonstrated that microglia-derived synaptic changes induced antidepressive-like behavior by using microglia-specific signal transducer and activator of transcription 3 (STAT3) knockout (KO) (STAT3fl/fl;LysM-Cre+/-) mice. We found that microglia-specific STAT3 KO mice showed antidepressive-like behavior in the forced swim, tail suspension, sucrose preference, and open-field tests. Surprisingly, the secretion of macrophage colony-stimulating factor (M-CSF) was increased from neuronal cells in the brains of STAT3fl/fl;LysM-Cre+/- mice. Moreover, the phosphorylation of antidepressant-targeting mediators and brain-derived neurotrophic factor expression were increased in the brains of STAT3fl/fl;LysM-Cre+/- mice as well as in neuronal cells in response to M-CSF stimulation. Importantly, the miniature excitatory postsynaptic current frequency in the medial prefrontal cortex was increased in STAT3fl/fl;LysM-Cre+/- mice and in the M-CSF treatment group. Collectively, microglial STAT3 regulates depression-related behaviors via neuronal M-CSF-mediated synaptic activity, suggesting that inhibition of microglial STAT3 might be a new therapeutic strategy for depression.
Collapse
Affiliation(s)
- Sun-Ho Kwon
- Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea,Neuro-Immune Information Storage Network Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea,Biomedical Science Project (BK21[PLUS]), Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeong-Kyu Han
- Neuro-Immune Information Storage Network Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea,Department of Physiology, Seoul National University College of Medicine, Seoul, Republic of Korea,Department of Brain and Cognitive Sciences, Seoul National University Graduate School, Seoul, Republic of Korea
| | - Moonseok Choi
- Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yong-Jin Kwon
- Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sung Joon Kim
- Department of Physiology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eun Hee Yi
- Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jae-Cheon Shin
- Pohang Center for Evaluation of Biomaterials, Pohang, Republic of Korea
| | - Ik-Hyun Cho
- Department of Convergence Medical Science, College of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Byung-Hak Kim
- Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea,Biomedical Science Project (BK21[PLUS]), Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sang Jeong Kim
- Neuro-Immune Information Storage Network Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea,Biomedical Science Project (BK21[PLUS]), Seoul National University College of Medicine, Seoul, Republic of Korea,Department of Physiology, Seoul National University College of Medicine, Seoul, Republic of Korea,Department of Brain and Cognitive Sciences, Seoul National University Graduate School, Seoul, Republic of Korea,Department of Physiology, Seoul National University College of Medicine, Seoul, South Korea. Tel: +82 2 740 8229, Fax: +82 2 763 9667, E-mail:
| | - Sang-Kyu Ye
- Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea,Neuro-Immune Information Storage Network Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea,Biomedical Science Project (BK21[PLUS]), Seoul National University College of Medicine, Seoul, Republic of Korea,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, Republic of Korea,Department of Pharmacology, Seoul National University College of Medicine, Seoul, South Korea. Tel: +82 2 740 8281, Fax: +82 2 745 7996, E-mail:
| |
Collapse
|
49
|
Yang L, Zhang YJ. Antagonizing cytokine-mediated JAK-STAT signaling by porcine reproductive and respiratory syndrome virus. Vet Microbiol 2017; 209:57-65. [PMID: 28069291 PMCID: PMC7117332 DOI: 10.1016/j.vetmic.2016.12.036] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/22/2016] [Accepted: 12/27/2016] [Indexed: 12/18/2022]
Abstract
Janus kinase (JAK)-signal transducer and activator of transcription (STAT) signaling pathway is activated by myriad cytokines, which are involved in regulation of cell growth, proliferation, differentiation, apoptosis, angiogenesis, immunity and inflammatory response. Because of its significance in immune response, JAK-STAT pathway is often targeted by pathogens, including porcine reproductive and respiratory syndrome virus (PRRSV). PRRSV causes reproductive failure in sows and respiratory disease in pigs of all ages. A typical feature of the immune response to PRRSV infection in pigs is delayed production and low titer of virus neutralizing antibodies, and weak cell-mediated immune response. One of the possible reasons for the weak protective immune response is that PRRSV interferes with cytokine-mediated JAK-STAT signaling. PRRSV inhibits interferon-activated JAK-STAT signaling by blocking nuclear translocation of STAT1 and STAT2. The mechanism is that PRRSV non-structural protein 1β (nsp1β) induces degradation of karyopherin α1 (KPNA1), a critical adaptor in nucleo-cytoplasmic transport. PRRSV also antagonizes IL6-activated JAK-STAT3 signaling via inducing degradation of STAT3. In this review, we briefly introduce JAK-STAT signaling, summarize the PRRSV interference with it, and provide perspective on the perturbation in the context of PRRSV-elicited immune response.
Collapse
Affiliation(s)
- Liping Yang
- Molecular Virology Laboratory, VA-MD College of Veterinary Medicine and Maryland Pathogen Research Institute, University of Maryland, College Park, MD, USA
| | - Yan-Jin Zhang
- Molecular Virology Laboratory, VA-MD College of Veterinary Medicine and Maryland Pathogen Research Institute, University of Maryland, College Park, MD, USA.
| |
Collapse
|
50
|
Rabbi MF, Eissa N, Munyaka PM, Kermarrec L, Elgazzar O, Khafipour E, Bernstein CN, Ghia JE. Reactivation of Intestinal Inflammation Is Suppressed by Catestatin in a Murine Model of Colitis via M1 Macrophages and Not the Gut Microbiota. Front Immunol 2017; 8:985. [PMID: 28871257 PMCID: PMC5566981 DOI: 10.3389/fimmu.2017.00985] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 08/02/2017] [Indexed: 12/22/2022] Open
Abstract
While there is growing awareness of a relationship between chromogranin-A (CHGA) and susceptibility to inflammatory conditions, the role of human catestatin [(hCTS); CHGA352–67] in the natural history of established inflammatory bowel disease is not known. Recently, using two different experimental models, we demonstrated that hCTS-treated mice develop less severe acute colitis. We have also shown the implication of the macrophages in this effect. The aims of this study were to determine (1) whether hCTS treatment could attenuate the reactivation of inflammation in adult mice with previously established chronic colitis; (2) whether this effect is mediated through macrophages or the gut microbiota. Quiescent colitis was induced in 7–8-week-old C57BL6 mice using four cycles (2–4%) of dextran sulfate sodium. hCTS (1.5 mg/kg/day) treatment or vehicle started 2 days before the last induction of colitis and continuing for 7 days. At sacrifice, macro- and microscopic scores were determined. Colonic pro-inflammatory cytokines [interleukin (IL)-6, IL-1β, and TNF- α], anti-inflammatory cytokines (IL-10, TGF- β), classically activated (M1) (iNOS, Mcp1), and alternatively activated (M2) (Ym1, Arg1) macrophages markers were studied using ELISA and/or RT-qPCR. In vitro, peritoneal macrophages isolated from naïve mice and treated with hCTS (10−5 M, 12 h) were exposed to either lipopolysaccharide (100 ng/ml, 12 h) to polarize M1 macrophages or to IL-4/IL-13 (20 ng/ml) to polarize M2 macrophages. M1/M2 macrophage markers along with cytokine gene expression were determined using RT-qPCR. Feces and mucosa-associated microbiota (MAM) samples were collected, and the V4 region of 16 s rRNA was sequenced. Micro- and macroscopic scores, colonic IL-6, IL-1β, TNF- α, and M1 macrophages markers were significantly decreased in the hCTS-treated group. Treatment did not have any effect on colonic IL-10, TGF-β, and M2 markers nor modified the bacterial richness, diversity, or the major phyla in colitic fecal and MAM samples. In vitro, pro-inflammatory cytokines levels, as well as their gene expression, were significantly reduced in hCTS-treated M1 macrophages. hCTS treatment did not affect M2 macrophage markers. These findings suggest that hCTS treatment attenuates the severity of inflammatory relapse through the modulation of the M1 macrophages and the release of pro-inflammatory cytokines.
Collapse
Affiliation(s)
- Mohammad F Rabbi
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,The Children Research Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada
| | - Nour Eissa
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,The Children Research Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada
| | - Peris M Munyaka
- Department of Animal Sciences, University of Manitoba, Winnipeg, MB, Canada
| | | | - Omar Elgazzar
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Ehsan Khafipour
- Department of Animal Sciences, University of Manitoba, Winnipeg, MB, Canada.,Department of Medical Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - Charles N Bernstein
- Department of Internal Medicine, Section of Gastroenterology, University of Manitoba, Winnipeg, MB, Canada.,Inflammatory Bowel Disease Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
| | - Jean Eric Ghia
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,The Children Research Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada.,Department of Internal Medicine, Section of Gastroenterology, University of Manitoba, Winnipeg, MB, Canada.,Inflammatory Bowel Disease Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
| |
Collapse
|