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Du Y, Guan X, Zhu Y, Jin S, Liu J. LncRNA in periodontal tissue-derived cells on osteogenic differentiation in the periodontitis field. Oral Dis 2024. [PMID: 38655682 DOI: 10.1111/odi.14970] [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: 07/14/2023] [Revised: 02/06/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024]
Abstract
OBJECTIVE Periodontitis can lead to the destruction of periodontal tissues and potentially tooth loss. Numerous periodontal tissue-derived cells display osteogenic differentiation potential. The presence of differentially expressed long non-coding RNAs (lncRNAs) in these cells indicate their ability to regulate the process of osteogenic differentiation. We aim to elucidate the various lncRNA-mediated regulatory mechanisms in the osteogenic differentiation of periodontal tissue-derived cells in the field of periodontitis at epigenetic modification, transcriptional, and post-transcriptional levels. SUBJECTS AND METHODS We systematically searched the PubMed, Web of Science, and ScienceDirect databases to identify relevant literature in the field of periodontitis discussing the role of lncRNAs in regulating osteogenic differentiation of periodontal tissue-derived cells. The identified literature was subsequently summarized for comprehensive review. RESULTS In this review, we have comprehensively summarized the regulatory mechanisms of lncRNAs in the osteogenic differentiation of periodontal tissue-derived cells in the field of periodontitis and discussed how these lncRNAs provide novel perspectives for understanding the pathogenesis and progression of periodontitis. CONCLUSION These results indicate the pivotal role of lncRNAs as regulators in the osteogenic differentiation of periodontal tissue-derived cells, providing a solid basis for future investigations on the role of lncRNAs in the periodontitis field.
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Affiliation(s)
- Yuanhang Du
- School of Stomatology, Zunyi Medical University, Zunyi, China
| | - Xiaoyan Guan
- Department of Orthodontics, Affiliated Stomatological Hospital of Zunyi Medical University, Zunyi, China
| | - Yinci Zhu
- School of Stomatology, Zunyi Medical University, Zunyi, China
| | - Suhan Jin
- Department of Orthodontics, Affiliated Stomatological Hospital of Zunyi Medical University, Zunyi, China
| | - Jianguo Liu
- School of Stomatology, Zunyi Medical University, Zunyi, China
- Special Key Laboratory of Oral Diseases Research, Higher Education Institution, Zunyi, China
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2
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Rehman IU, Saleem M, Raza SA, Bashir S, Muhammad T, Asghar S, Qamar MU, Shah TA, Bin Jardan YA, Mekonnen AB, Bourhia M. Anti-ulcerative colitis effects of chemically characterized extracts from C alliandra haematocephala in acetic acid-induced ulcerative colitis. Front Chem 2024; 12:1291230. [PMID: 38476652 PMCID: PMC10927971 DOI: 10.3389/fchem.2024.1291230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 01/30/2024] [Indexed: 03/14/2024] Open
Abstract
Background: Ulcerative colitis is a chronic immune-mediated inflammatory bowel disease that involves inflammation and ulcers of the colon and rectum. To date, no definite cure for this disease is available. Objective: The objective of the current study was to assess the effect of Calliandra haematocephala on inflammatory mediators and oxidative stress markers for the exploration of its anti-ulcerative colitis activity in rat models of acetic acid-induced ulcerative colitis. Methods: Methanolic and n-hexane extracts of areal parts of the plant were prepared by cold extraction method. Phytochemical analysis of both extracts was performed by qualitative analysis, quantitative methods, and high-performance liquid chromatography (HPLC). Prednisone at 2 mg/kg dose and plant extracts at 250, 500, and 750 mg/kg doses were given to Wistar rats for 11 days, which were given acetic acid on 8th day through the trans-rectal route for the induction of ulcerative colitis. A comparison of treatment groups was done with a normal control group and a colitis control group. To evaluate the anti-ulcerative colitis activity of Calliandra haematocephala, different parameters such as colon macroscopic damage, ulcer index, oxidative stress markers, histopathological examination, and mRNA expression of pro and anti-inflammatory mediators were evaluated. mRNA expression analysis was carried out by reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR). Results: The phytochemical evaluation revealed polyphenols, flavonoids, tannins, alkaloids, and sterols in both extracts of the plant. Results of the present study exhibited that both extracts attenuated the large bowel inflammation and prevented colon ulceration at all tested doses. Macroscopic damage and ulcer scoreswere significantly decreased by both extracts. Malondialdehyde (MDA) levels and nitrite/nitrate concentrations in colon tissues were returned to normal levels while superoxide dismutase (SOD) activity was significantly improved by all doses. Histopathological examination exhibited that both extracts prevented the inflammatory changes, cellular infiltration, and colon thickening. Gene expression analysis by RT-qPCR revealed the downregulation of pro-inflammatory markers such as tumor necrosis factor-alpha (TNF-α) and cyclooxygenase-2 (COX-2) whereas the anti-inflammatory cytokines including Interleukin-4 (IL-4) and Interleukin-10 (IL-10) were found to be upregulated in treated rats. Conclusion: It was concluded based on study outcomes that methanolic and n-hexane extracts of Calliandra haematocephala exhibited anti-ulcerative colitis activity through modulation of antioxidant defense mechanisms and the immune system. In this context, C. haematocephala can be considered as a potential therapeutic approach for cure of ulcerative colitis after bioassay-directed isolation of bioactive phytochemicals and clinical evaluation.
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Affiliation(s)
- Inaam Ur Rehman
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Mohammad Saleem
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Syed Atif Raza
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Saher Bashir
- Department of Chemistry, Faculty of Sciences, University of the Punjab, Lahore, Pakistan
| | - Taha Muhammad
- Shalamar Medical and Dental College, Lahore, Pakistan
| | - Shahzad Asghar
- Department of Pharmacy, University of South Asia, Lahore, Pakistan
| | - Muhammad Usman Qamar
- Institute of Microbiology, Faculty of Life Sciences, Government College University Faisalabad, Faisalabad, Pakistan
- Division of Infectious Diseases, Department of Medicine, Geneva University Hospitals, Geneva, Switzerland
- Department of Microbiology and Molecular Medicine, University of Geneva, Geneva, Switzerland
| | - Tawaf Ali Shah
- College of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Yousef A. Bin Jardan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | | | - Mohammed Bourhia
- Laboratory of Biotechnology and Natural Resources Valorization, Faculty of Sciences of Agadir, Ibnou Zohr University, Agadir, Morocco
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3
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Zhou G, Shen P, Sun Y, Zhang X, Yan C, Yu J, Liu F, Yang D, Deng L, Xu E, Wang Y, Liu L, Tong C, Sun T, Wang X. Transcriptome profiling of bovine endometrial epithelial cells induced by lipopolysaccharides in vitro. Anim Biotechnol 2023; 34:4588-4599. [PMID: 36756956 DOI: 10.1080/10495398.2023.2174876] [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] [Indexed: 02/10/2023]
Abstract
Endometritis is an inflammation of the surface of the endometrium that does not penetrate the submucosa and can cause infertility and increase the elimination rate in cows. Endometrial epithelial cells are the first barrier of the endometrium against foreign stimuli and bacterial infection. Understanding the genetic changes in stimulated endometrial epithelial cells will help in the efforts to prevent and treat endometritis. This study investigated changes in bovine endometrial epithelial (BEEC) gene expression induced by lipopolysaccharide (LPS)-induced inflammation and compared transcriptome-wide gene changes between LPS- and phosphate-buffered saline (PBS)- treated BEECs by RNA sequencing. Compared with the PBS group, the LPS group showed 60 differentially expressed genes (DEGs) (36 upregulated, 24 downregulated). Gene Ontology enrichment analysis revealed that most enrichment occurred during CXCR chemokine receptor binding, inflammatory response, and neutrophil migration. Kyoto Encyclopedia of Genes and Genomes pathway analysis showed DEGs mainly concentrated in cytokine-cytokine receptor interactions; IL-17, tumor necrosis factor, NOD-like receptor, chemokine, Toll-like receptor, and nuclear factor-κB signaling pathways; and the cytoplasmic DNA sensing pathway. Moreover, results revealed that cytokines SAA3 and HP increased significantly after LPS treatment. These effects of LPS on BEECs transcriptome and the molecular mechanism of endometritis provide a basis for improved clinical treatment and novel drug development.
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Affiliation(s)
- GuangWei Zhou
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
| | - PuXiu Shen
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
| | - Yu Sun
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
- Institute of Animal Science, Tibet Academy of Agricultural and Animal Husbandry Science, Lhasa, China
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Xing Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
| | - ChenBo Yan
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
| | - JingCheng Yu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
| | - Fang Liu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - DeXin Yang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
| | - LiXin Deng
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - EnBu Xu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
| | - YiZhen Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
| | - Lin Liu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
| | - Chao Tong
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- Wuhu Overseas Student Pioneer Park, Wuhu, China
| | - Tao Sun
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
- University of Science and Technology of China, Hefei, China
| | - XueBing Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, P.R. China
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
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4
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Dharra R, Kumar Sharma A, Datta S. Emerging aspects of cytokine storm in COVID-19: The role of proinflammatory cytokines and therapeutic prospects. Cytokine 2023; 169:156287. [PMID: 37402337 PMCID: PMC10291296 DOI: 10.1016/j.cyto.2023.156287] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 06/24/2023] [Indexed: 07/06/2023]
Abstract
COVID-19 has claimed millions of lives during the last 3 years since initial cases were reported in Wuhan, China, in 2019. Patients with COVID-19 suffer from severe pneumonia, high fever, acute respiratory distress syndrome (ARDS), and multiple-organ dysfunction, which may also result in fatality in extreme cases. Cytokine storm (CS) is hyperactivation of the immune system, wherein the dysregulated production of proinflammatory cytokines could result in excessive immune cell infiltrations in the pulmonary tissues, resulting in tissue damage. The immune cell infiltration could also occur in other tissues and organs and result in multiple organs' dysfunction. The key cytokines implicated in the onset of disease severity include TNF-α, IFN-γ, IL-6, IL-1β, GM-CSF, and G-CSF. Controlling the CS is critical in treating COVID-19 disease. Therefore, different strategies are employed to mitigate the effects of CS. These include using monoclonal antibodies directed against soluble cytokines or the cytokine receptors, combination therapies, mesenchymal stem cell therapy, therapeutic plasma exchange, and some non-conventional treatment methods to improve patient immunity. The current review describes the role/s of critical cytokines in COVID-19-mediated CS and the respective treatment modalities.
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Affiliation(s)
- Renu Dharra
- CSIR-Institute of Microbial Technology, Sector 39 A, Chandigarh 160036, India
| | - Anil Kumar Sharma
- Department of Bio-Science and Technology, M. M. Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, India
| | - Sonal Datta
- Department of Bio-Science and Technology, M. M. Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, India.
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5
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Yang S, Xu X, Zhang A, Wang Y, Ji G, Sun C, Li H. The evolution and immunomodulatory role of Zc3h12 proteins in zebrafish (Danio rerio). Int J Biol Macromol 2023; 239:124214. [PMID: 37001786 DOI: 10.1016/j.ijbiomac.2023.124214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/31/2023]
Abstract
Zc3h12 family is an important RNA-binding protein family regulating mRNA of inflammatory cytokines in mammals. However, there are few studies on their post-transcriptional level regulation of inflammatory cytokines in fish. Here, we investigated the evolution of zebrafish Zc3h12 family and explored their immunomodulatory role. Phylogenetic and syntenic analysis indicated the number of zc3h12 family members had increased ranging from a single member in invertebrates to a single copy of four members in mammals. As the most evolutionarily diverse group of vertebrates, the number of zc3h12 family members was more complex and diverse in the teleost, each member experienced different fates and followed different rules in multiple rounds of whole-genome duplication events. Thereinto, zebrafish contained three zc3h12 genes, among which zc3h12aa and zc3h12ab were duplicated from the same gene. Zebrafish Zc3h12 family could recognize the 3'-UTR regions of inflammatory cytokines through binding to the specific RNA secondary structure and negatively regulate their expression. Deletion of either Zc3h12 domains or mutation of the key amino acid in RNAase domain attenuated their modulatory effect, suggesting both domain and RNAase activity are important to the immunomodulatory role. These results elucidated the evolution of Zc3h12 family and uncovered Zc3h12-mediated post-transcriptional regulation of cytokines in zebrafish.
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6
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Innate immune sensing of pathogens and its post-transcriptional regulations by RNA-binding proteins. Arch Pharm Res 2023; 46:65-77. [PMID: 36725818 PMCID: PMC9891759 DOI: 10.1007/s12272-023-01429-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/25/2023] [Indexed: 02/03/2023]
Abstract
Innate immunity is one of the most ancient and conserved aspect of the immune system. It is responsible for an anti-infective response and has been intrinsically linked to the generation of inflammation. While the inflammatory response entails signaling to the adaptive immune system, it can be self-perpetuating and over-exaggerated, resulting in deleterious consequences, including cytokine storm, sepsis, and the development of inflammatory and autoimmune diseases. Cytokines are the defining features of the immune system. They are critical to mediation of inflammation and host immune defense, and are tightly regulated at several levels, including transcriptional and post-transcriptional levels. Recently, the role of post-transcriptional regulation in fine-tuning cytokine expression has become more appreciated. This interest has advanced our understanding of how various mechanisms are integrated and regulated to determine the amount of cytokine production in cells during inflammatory responses. Here, we would like to review how innate immunity recognizes and responds to pathogens by pattern-recognition receptors, and the molecular mechanisms regulating inflammatory responses, with a focus on the post-transcriptional regulations of inflammatory mediators by RNA-binding proteins, especially Regnase-1. Finally, we will discuss the regulatory mechanisms of Regnase-1 and highlight therapeutic strategies based on targeting Regnase-1 activity and its turnover as potential treatment options for chronic and autoimmune diseases.
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7
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Quiroga IY, Cruikshank AE, Bond ML, Reed KSM, Evangelista BA, Tseng JH, Ragusa JV, Meeker RB, Won H, Cohen S, Cohen TJ, Phanstiel DH. Synthetic amyloid beta does not induce a robust transcriptional response in innate immune cell culture systems. J Neuroinflammation 2022; 19:99. [PMID: 35459147 PMCID: PMC9034485 DOI: 10.1186/s12974-022-02459-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 04/07/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is a progressive neurodegenerative disease that impacts nearly 400 million people worldwide. The accumulation of amyloid beta (Aβ) in the brain has historically been associated with AD, and recent evidence suggests that neuroinflammation plays a central role in its origin and progression. These observations have given rise to the theory that Aβ is the primary trigger of AD, and induces proinflammatory activation of immune brain cells (i.e., microglia), which culminates in neuronal damage and cognitive decline. To test this hypothesis, many in vitro systems have been established to study Aβ-mediated activation of innate immune cells. Nevertheless, the transcriptional resemblance of these models to the microglia in the AD brain has never been comprehensively studied on a genome-wide scale. METHODS We used bulk RNA-seq to assess the transcriptional differences between in vitro cell types used to model neuroinflammation in AD, including several established, primary and iPSC-derived immune cell lines (macrophages, microglia and astrocytes) and their similarities to primary cells in the AD brain. We then analyzed the transcriptional response of these innate immune cells to synthetic Aβ or LPS and INFγ. RESULTS We found that human induced pluripotent stem cell (hIPSC)-derived microglia (IMGL) are the in vitro cell model that best resembles primary microglia. Surprisingly, synthetic Aβ does not trigger a robust transcriptional response in any of the cellular models analyzed, despite testing a wide variety of Aβ formulations, concentrations, and treatment conditions. Finally, we found that bacterial LPS and INFγ activate microglia and induce transcriptional changes that resemble many, but not all, aspects of the transcriptomic profiles of disease associated microglia (DAM) present in the AD brain. CONCLUSIONS These results suggest that synthetic Aβ treatment of innate immune cell cultures does not recapitulate transcriptional profiles observed in microglia from AD brains. In contrast, treating IMGL with LPS and INFγ induces transcriptional changes similar to those observed in microglia detected in AD brains.
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Affiliation(s)
- I Y Quiroga
- Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA
| | - A E Cruikshank
- Postbaccalaureate Research Education Program, University of North Carolina, Chapel Hill, NC, USA
| | - M L Bond
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, USA
| | - K S M Reed
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, USA
| | - B A Evangelista
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, USA
| | - J H Tseng
- Department of Neurology, University of North Carolina, Chapel Hill, NC, USA
| | - J V Ragusa
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, USA
| | - R B Meeker
- Department of Neurology, University of North Carolina, Chapel Hill, NC, USA
| | - H Won
- Department of Genetics and Neuroscience Center, University of North Carolina, Chapel Hill, NC, USA
- Neuroscience Center, University of North Carolina, Chapel Hill, NC, USA
| | - S Cohen
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, USA
| | - T J Cohen
- Department of Neurology, University of North Carolina, Chapel Hill, NC, USA
| | - D H Phanstiel
- Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA.
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, USA.
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, USA.
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8
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Natarajan K, Sundaramoorthy A, Shanmugam N. HnRNPK and lysine specific histone demethylase-1 regulates IP-10 mRNA stability in monocytes. Eur J Pharmacol 2021; 920:174683. [PMID: 34914972 DOI: 10.1016/j.ejphar.2021.174683] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 11/26/2021] [Accepted: 12/02/2021] [Indexed: 12/27/2022]
Abstract
Altered mRNA metabolism is a feature of many inflammatory diseases. Post transcriptional regulation of interferon-γ-inducible protein (IP)-10 has been uncharacterized in diabetes conditions. RNA-affinity capture method and RNA immuno-precipitation revealed S100b treatment increased the binding of heterogeneous nuclear ribonucleoprotein (hnRNP)K to the IP-10 3'UTR and increased IP-10 mRNA accumulation. Luciferase activity assay using reporter plasmids showed involvement of IP-10 3'UTR. Knocking down of hnRNPK destabilized S100b induced IP-10 mRNA accumulation. S100b promoted the translocation of hnRNPK from nucleus to the cytoplasm and this was confirmed by phosphomimetic S284/353D mutant and non-phosphatable S284/353A hnRNPK mutant. S100b treatment demethylates hnRNPK at Lys219 by Lysine Specific Demethylase (LSD)-1. HnRNPKK219I, a demethylation defective mutant increased IP-10 mRNA stability. Apparently, triple mutant hnRNPKK219I/S284D/353D promoted IP-10 mRNA stability. Interestingly, knocking down LSD-1 abolished S100b induced IP-10 mRNA accumulation. These observations show for the first time that IP-10 mRNA stability is dynamically regulated by Lysine demethylation of hnRNPK by LSD-1. These results indicate that hnRNPK plays an important role in IP-10 mRNA stability induced by S100b which could exacerbate monocyte activation, relevant to the pathogenesis of diabetic complications like atherosclerosis.
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Affiliation(s)
- Kartiga Natarajan
- Diabetes and Cardiovascular Research Laboratory, Department of Biomedical Science, Bharathidasan University, Tiruchirappalli, 620 024, Tamilnadu, India
| | - Arun Sundaramoorthy
- Diabetes and Cardiovascular Research Laboratory, Department of Biomedical Science, Bharathidasan University, Tiruchirappalli, 620 024, Tamilnadu, India.
| | - Narkunaraja Shanmugam
- Diabetes and Cardiovascular Research Laboratory, Department of Biomedical Science, Bharathidasan University, Tiruchirappalli, 620 024, Tamilnadu, India.
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9
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Expression of macrophage migration inhibitory factor and its receptor CD74 in systemic sclerosis. Cent Eur J Immunol 2021; 46:375-383. [PMID: 34764810 PMCID: PMC8574103 DOI: 10.5114/ceji.2021.109756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 05/10/2021] [Indexed: 11/24/2022] Open
Abstract
Macrophage migration inhibitory factor (MIF) has been associated with the
pathogenesis of several rheumatic diseases. In systemic sclerosis (SSc) it has
been shown that MIF expression is dysregulated in serum and skin. However, the
MIF receptor, CD74, has been poorly investigated and its potential role in the
pathogenesis of SSc remains unknown. This study aimed to analyze mRNA, tissue,
and serum expression of MIF and CD74 in patients with limited (lcSSc) and
diffuse (dcSSc) systemic sclerosis. A case-control study in 20 SSc patients and
20 control subjects (CS) from southern México was conducted. MIF and CD74
mRNA expression levels were quantified by real-time PCR, MIF serum levels were
measured by an ELISA kit, and MIF and its receptor CD74 were evaluated by
immunohistochemistry of skin biopsies. MIF mRNA expression was significantly
higher in CS than in SSc patients (p = 0.02), while CD74 showed no differences
between patients and CS. MIF serum levels were similar between SSc patients and
CS: dcSSc = 3.82 ng/ml, lcSSc = 3.57 ng/ml, and CS = 3.28 ng/ml. In skin
biopsies of SSc, MIF and CD74 were enhanced in keratinocytes, while they showed
decreased expression in endothelial cells. On the other hand, the staining of
CD74 was high in fibroblasts of dcSSc patients. Our findings show MIF and CD74
deregulation at the transcriptional and translational levels in SSc, which might
be associated with the proinflammatory process leading to tissue remodeling and
excessive fibrosis in SSc.
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10
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Aloufi N, Alluli A, Eidelman DH, Baglole CJ. Aberrant Post-Transcriptional Regulation of Protein Expression in the Development of Chronic Obstructive Pulmonary Disease. Int J Mol Sci 2021; 22:ijms222111963. [PMID: 34769392 PMCID: PMC8584689 DOI: 10.3390/ijms222111963] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is an incurable and prevalent respiratory disorder that is characterized by chronic inflammation and emphysema. COPD is primarily caused by cigarette smoke (CS). CS alters numerous cellular processes, including the post-transcriptional regulation of mRNAs. The identification of RNA-binding proteins (RBPs), microRNAs (miRNAs), and long non-coding RNAs (lncRNAs) as main factors engaged in the regulation of RNA biology opens the door to understanding their role in coordinating physiological cellular processes. Dysregulation of post-transcriptional regulation by foreign particles in CS may lead to the development of diseases such as COPD. Here we review current knowledge about post-transcriptional events that may be involved in the pathogenesis of COPD.
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Affiliation(s)
- Noof Aloufi
- Department of Pathology, McGill University, Montreal, QC H3A 2B4, Canada; (N.A.); (A.A.)
- Department of Medical Laboratory Technology, Applied Medical Science, Taibah University, Universities Road, Medina P.O. Box 344, Saudi Arabia
| | - Aeshah Alluli
- Department of Pathology, McGill University, Montreal, QC H3A 2B4, Canada; (N.A.); (A.A.)
| | - David H. Eidelman
- Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada;
| | - Carolyn J. Baglole
- Department of Pathology, McGill University, Montreal, QC H3A 2B4, Canada; (N.A.); (A.A.)
- Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada;
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC H3G 1Y6, Canada
- Correspondence:
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Szulc-Kielbik I, Kielbik M, Nowak M, Klink M. The implication of IL-6 in the invasiveness and chemoresistance of ovarian cancer cells. Systematic review of its potential role as a biomarker in ovarian cancer patients. Biochim Biophys Acta Rev Cancer 2021; 1876:188639. [PMID: 34695534 DOI: 10.1016/j.bbcan.2021.188639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/23/2021] [Accepted: 10/18/2021] [Indexed: 12/12/2022]
Abstract
Interleukin 6 (IL-6) is a pleiotropic cytokine that is strongly implicated in the development and progression of ovarian cancer. The most recognized actions of IL-6 in ovarian cancer (OC) cells are the induction of cell proliferation and inhibition of cell apoptosis. Equally important is its ability to enhance the migratory and invasive potential of OC cells. Moreover, the increased expression and secretion of this cytokine positively correlates with OC cell chemoresistance. Elevated concentrations of IL-6 are observed in the serum and ascites of ovarian cancer patients. Thus, its level is discussed in the literature as a potential biomarker that can help to discriminate malignant and nonmalignant ovarian tumors and allow for the prediction of the chemotherapy response. The importance of IL-6 in ovarian cancer is proved by the fact that this cytokine is a potential target to anti-cancer therapy. This review is divided into two parts. The first summarizes the general biological activity of IL-6, and overviews its impact on OC cells, as well as discusses the current proposition of IL-6 inclusion in combination of anti-OC therapy. The second part is a systematic review of IL-6 as a possible biomarker in ovarian cancer patients.
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Affiliation(s)
- Izabela Szulc-Kielbik
- Institute of Medical Biology, Polish Academy of Sciences, 106 Lodowa Str., 93-232 Lodz, Poland.
| | - Michal Kielbik
- Institute of Medical Biology, Polish Academy of Sciences, 106 Lodowa Str., 93-232 Lodz, Poland.
| | - Marek Nowak
- Dept. of Operative Gynecology and Gynecologic Oncology, Polish Mother's Memorial Hospital - Research Institute, 281/289 Rzgowska Str., Lodz, Poland; Dept. of Operative and Endoscopic Gynecology, Medical University of Lodz, 4 Kosciuszki Str., 90-419 Lodz, Poland.
| | - Magdalena Klink
- Institute of Medical Biology, Polish Academy of Sciences, 106 Lodowa Str., 93-232 Lodz, Poland.
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12
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Mino T, Takeuchi O. Regnase-1-related endoribonucleases in health and immunological diseases. Immunol Rev 2021; 304:97-110. [PMID: 34514623 DOI: 10.1111/imr.13023] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/29/2021] [Accepted: 08/05/2021] [Indexed: 12/12/2022]
Abstract
Dynamic changes in gene expression are key factors in the development and activation of immune cells. RNA metabolism is one of the critical steps for the control of gene expression. Together with transcriptional regulation, mRNA decay by specific ribonucleases (RNases) plays a vital role in shaping gene expression. In addition to the canonical exoribonuclease-mediated mRNA degradation through the recognition of cis-elements in mRNA 3' untranslated regions by RNA-binding proteins (RBPs), endoribonucleases are involved in the control of mRNAs in immune cells. In this review, we gleam insights on how Regnase-1, an endoribonuclease necessary for regulating immune cell activation and maintenance of immune homeostasis, degrades RNAs involved in immune cell activation. Additionally, we provide insights on recent studies which uncover the role of Regnase-1-related RNases, including Regnase-2, Regnase-3, and Regnase-4, as well as N4BP1 and KHNYN, in immune regulation and antiviral immunity. As the dysregulation of immune mRNA decay leads to pathologies such as autoimmune diseases or impaired activation of immune responses, RNases are deemed as essential components of regulatory feedback mechanisms that modulate inflammation. Given the critical role of RNases in autoimmunity, RNases can be perceived as emerging targets in the development of novel therapeutics.
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Affiliation(s)
- Takashi Mino
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Osamu Takeuchi
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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13
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Terminal uridyltransferase 7 regulates TLR4-triggered inflammation by controlling Regnase-1 mRNA uridylation and degradation. Nat Commun 2021; 12:3878. [PMID: 34188032 PMCID: PMC8241994 DOI: 10.1038/s41467-021-24177-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 06/04/2021] [Indexed: 12/13/2022] Open
Abstract
Different levels of regulatory mechanisms, including posttranscriptional regulation, are needed to elaborately regulate inflammatory responses to prevent harmful effects. Terminal uridyltransferase 7 (TUT7) controls RNA stability by adding uridines to its 3′ ends, but its function in innate immune response remains obscure. Here we reveal that TLR4 activation induces TUT7, which in turn selectively regulates the production of a subset of cytokines, including Interleukin 6 (IL-6). TUT7 regulates IL-6 expression by controlling ribonuclease Regnase-1 mRNA (encoded by Zc3h12a gene) stability. Mechanistically, TLR4 activation causes TUT7 to bind directly to the stem-loop structure on Zc3h12a 3′-UTR, thereby promotes Zc3h12a uridylation and degradation. Zc3h12a from LPS-treated TUT7-sufficient macrophages possesses increased oligo-uridylated ends with shorter poly(A) tails, whereas oligo-uridylated Zc3h12a is significantly reduced in Tut7-/- cells after TLR4 activation. Together, our findings reveal the functional role of TUT7 in sculpting TLR4-driven responses by modulating mRNA stability of a selected set of inflammatory mediators. Terminal uridyltransferase 7 (TUT7) adds U-tails on diverse RNAs to promote degradation. Here the authors show that TUT7 is induced upon LPS treatment in macrophages and promotes decay of Regnase-1, thereby regulating the expression of a subset of cytokines, including IL-6.
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14
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Rothamel K, Arcos S, Kim B, Reasoner C, Lisy S, Mukherjee N, Ascano M. ELAVL1 primarily couples mRNA stability with the 3' UTRs of interferon-stimulated genes. Cell Rep 2021; 35:109178. [PMID: 34038724 PMCID: PMC8225249 DOI: 10.1016/j.celrep.2021.109178] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 03/13/2021] [Accepted: 05/04/2021] [Indexed: 12/17/2022] Open
Abstract
Upon pathogen detection, the innate immune system triggers signaling events leading to upregulation of pro-inflammatory and anti-microbial mRNA transcripts. RNA-binding proteins (RBPs) interact with these critical mRNAs and regulate their fates at the post-transcriptional level. One such RBP is ELAVL1. Although significant progress has been made in understanding how embryonic lethal vision-like protein 1 (ELAVL1) regulates mRNAs, its target repertoire and binding distribution within an immunological context remain poorly understood. We overlap four high-throughput approaches to define its context-dependent targets and determine its regulatory impact during immune activation. ELAVL1 transitions from binding overwhelmingly intronic sites to 3′ UTR sites upon immune stimulation of cells, binding previously and newly expressed mRNAs. We find that ELAVL1 mediates the RNA stability of genes that regulate pathways essential to pathogen sensing and cytokine production. Our findings reveal the importance of examining RBP regulatory impact under dynamic transcriptomic events to understand their post-transcriptional regulatory roles within specific biological circuitries. Rothamel et al. show that upon immune activation, the RNA-binding protein ELAVL1 accumulates in the cytoplasm and redistributes from introns to mRNA 3′ UTRs. 3′ UTR binding confers enrichment and transcript stability. Many top-ranking transcripts are interferon-stimulated genes (ISGs), indicating that ELAVL1 is a positive regulator of an innate immune response.
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Affiliation(s)
- Katherine Rothamel
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Sarah Arcos
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Byungil Kim
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Clara Reasoner
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Samantha Lisy
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Neelanjan Mukherjee
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Manuel Ascano
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.
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15
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Chauhan P, Nair A, Patidar A, Dandapat J, Sarkar A, Saha B. A primer on cytokines. Cytokine 2021; 145:155458. [PMID: 33581983 DOI: 10.1016/j.cyto.2021.155458] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 12/19/2022]
Abstract
Cytokines are pleiotropic polypeptides that control the development of and responses mediated by immune cells. Cytokine classification predominantly relies on [1] the target receptor(s), [2] the primary structural features of the extracellular domains of their receptors, and [3] their receptor composition. Functionally, cytokines are either pro-inflammatory or anti-inflammatory, hematopoietic colony-stimulating factors, developmental and would healing maintaining immune homeostasis. When the balance in C can form complex networks amongst themselves that may affect the homeostasis and diseases. Cytokines can affect resistance and susceptibility for many diseases and their availability in the host cytokine production and interaction is disturbed, immunopathogenesis sets in. Therefore, cytokine-targeting bispecific, and chimeric antibodies form a significant mode of immnuo-therapeutics Although the field has grown deep and wide, many areas of cytokine biology remain unknown. Here, we have reviewed these cytokines along with the organization, signaling, and functions through respective cytokine-receptor-families. Being part of the special issue on the Role of Cytokines in Leishmaniasis, this review is intended to be used as an organized primer on cytokines and not a resource for detailed discussion- for which a two-volume Handbook of cytokines is available- on each of the cytokines. Priming the readers on cytokines, we next brief the role of cytokines in Leishmaniasis. In the brief, we do not provide an account of each of the involved cytokines known to date, instead, we offer a temporal relationship between the cytokines and the progress of the infection towards the alternate outcomes- healing or non-healing- of the infection.
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Affiliation(s)
- Prashant Chauhan
- National Centre for Cell Science, Ganeshkhind, Pune 411007, India
| | - Arathi Nair
- National Centre for Cell Science, Ganeshkhind, Pune 411007, India
| | - Ashok Patidar
- National Centre for Cell Science, Ganeshkhind, Pune 411007, India
| | - Jagneshwar Dandapat
- P.G. Department of Biotechnology, Utkal University, Bhubaneswar 751004, India
| | - Arup Sarkar
- Trident Academy of Creative Technology, Bhubaneswar 751024, India
| | - Bhaskar Saha
- National Centre for Cell Science, Ganeshkhind, Pune 411007, India; Trident Academy of Creative Technology, Bhubaneswar 751024, India; Department of Allied Health Sciences, BLDE (Deemed University), Vijayapura 562135, India.
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16
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Lim HJ, Bak SG, Park EJ, Ku SK, Lee S, Lee SW, Lee KM, Lee SJ, Rho MC. Retrofractamide C Derived from Piper longum Alleviates Xylene-Induced Mouse Ear Edema and Inhibits Phosphorylation of ERK and NF-κB in LPS-Induced J774A.1. Molecules 2020; 25:molecules25184058. [PMID: 32899525 PMCID: PMC7570867 DOI: 10.3390/molecules25184058] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 08/28/2020] [Accepted: 09/03/2020] [Indexed: 11/17/2022] Open
Abstract
Many studies have reported the biological activities of retrofractamide C (RAC). However, few studies have investigated the anti-inflammatory effect of RAC. In the present study, we investigated the anti-inflammatory effect of RAC using lipopolysaccharide (LPS)-induced J774A.1 cells and a xylene-induced mouse ear edema model. Treatment with RAC decreased LPS-induced nitric oxide (NO) and prostaglandin E2 (PGE2) secretion and inducible NO synthase (iNOS) and cyclooxygenase 2 (COX2) protein expression. It also downregulated the LPS-induced production of interleukin-1β (IL-1β) and interleukin-6 (IL-6) but not tumor necrosis factor α (TNF-α). In the LPS-induced signaling pathway, RAC inhibited the phosphorylation of extracellular signal-regulated kinase (ERK) and nuclear factor kappa light chain enhancer of activated B cells (NF-κB) but not c-Jun N-terminal kinase (JNK) or p38. In a xylene-induced mouse ear edema model, RAC treatment alleviated edema formation and inflammatory cell infiltration. In conclusion, the present study indicates that RAC has the potential to have anti-inflammatory effects and could be a prospective functional food.
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Affiliation(s)
- Hyung Jin Lim
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Department of Molecular Biology, Chonbuk National University, Jeonju-si, Jeonbuk 54896, Korea;
| | - Seon Gyeong Bak
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Department of Marine Bio Food Science, Chonnam National University, Yeosu-si, Jeonnam 59626, Korea
| | - Eun Jae Park
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, Jeonbuk National University, Iksan-si, Jeonbuk 54596, Korea
| | - Sae-Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongsan-si, Gyeonbuk 38610, Korea;
| | - Soyoung Lee
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
| | - Seung Woong Lee
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
| | - Kang Min Lee
- Department of Molecular Biology, Chonbuk National University, Jeonju-si, Jeonbuk 54896, Korea;
| | - Seung-Jae Lee
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Correspondence: (S.-J.L.); (M.-C.R.); Tel.: +82-63-570-5267 (S.-J.L.); +82-63-570-5230 (M.-C.R.)
| | - Mun-Chual Rho
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Correspondence: (S.-J.L.); (M.-C.R.); Tel.: +82-63-570-5267 (S.-J.L.); +82-63-570-5230 (M.-C.R.)
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17
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Quzhou Fructus Aurantii Extract suppresses inflammation via regulation of MAPK, NF-κB, and AMPK signaling pathway. Sci Rep 2020; 10:1593. [PMID: 32005962 PMCID: PMC6994495 DOI: 10.1038/s41598-020-58566-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/15/2020] [Indexed: 01/11/2023] Open
Abstract
The anti-inflammatory activity of Quzhou Fructus Aurantii Extract (QFAE) has been reported recently. Thus, present study aims to explore the mechanism of anti-inflammation of QFAE in vitro and in vivo to develop a lung phylactic agent. The anti-inflammatory mechanism of QFAE in RAW 264.7 cells and acute lung injury (ALI) mice model was determined by cytokines analysis, histopathological examination, Western blot assay, immunofluorescence, and immunohistochemistry analysis. The results showed that QFAE restrained mitogen-activated protein kinase (MAPK) and nuclear factor-kappa B (NF-κB) signaling pathways in LPS-induced RAW 264.7 cells, whereas AMP-activated protein kinase (AMPK) signaling pathways were activated, as revealed by prominent attenuation of phosphorylation of ERK, JNK, p38, p65, IκBα, RSK and MSK, and overt enhancement of phosphorylation of ACC and AMPKα. The levels of pro-inflammatory cytokines TNF, IL-6, and IL-1β were suppressed, whereas the level of anti-inflammatory cytokine IL-10 increased after pretreatment with QFAE in vivo and in vitro. Moreover, QFAE prevented mice from LPS-provoked ALI, bases on alleviating neutrophils, and macrophages in bronchoalveolar lavage fluid (BALF) and mitigatingpulmonary histological alters, as well as hematological change. The MAPK and NF-κB signaling pathways in LPS-stimulated ALI mice were dampened by QFAE pretreatment, whereas AMPK signaling pathways were accelerated, as testify by significant restraint of phosphorylation of ERK, JNK, p38, p65, and IκBα, and distinct elevation of phosphorylation of ACC and AMPKα. The remarkable anti-inflammatory effect of QFAE is associated with the suppression of MAPK and NF-κB signaling pathways and the initiation of AMPK signaling pathway.
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18
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Impact of Donor Human Milk in the Preterm Very Low Birth Weight Gut Transcriptome Profile by Use of Exfoliated Intestinal Cells. Nutrients 2019; 11:nu11112677. [PMID: 31694290 PMCID: PMC6893464 DOI: 10.3390/nu11112677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/28/2019] [Accepted: 10/30/2019] [Indexed: 12/12/2022] Open
Abstract
Background: Own mother’s milk (OMM) is the optimal nutrition for preterm infants. However, pasteurized donor human milk (DHM) is a valid alternative. We explored the differences of the transcriptome in exfoliated epithelial intestinal cells (EEIC) of preterm infants receiving full feed with OMM or DHM. Methods: The prospective observational study included preterm infants ≤ 32 weeks’ gestation and/or ≤1500 g birthweight. Total RNA from EEIC were processed for genome-wide expression analysis. Results: Principal component analysis and unsupervised hierarchical clustering analysis revealed two clustered groups corresponding to the OMM and DHM groups that showed differences in the gene expression profile in 1629 transcripts. The OMM group overexpressed lactalbumin alpha gene (LALBA), Cytochrome C oxidase subunit I gene (COX1) and caseins kappa gene (CSN3), beta gene (CSN2) and alpha gene (CSN1S1) and underexpressed Neutrophil Cytosolic Factor 1 gene (NCF1) compared to the DHM group. Conclusions: The transcriptomic analysis of EEIC showed that OMM induced a differential expression of specific genes that may contribute to a more efficient response to a pro-oxidant challenge early in the postnatal period when preterm infants are at a higher risk of oxidative stress. The use of OMM should be strongly promoted in preterm infants.
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19
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Yamasoba D, Sato K, Ichinose T, Imamura T, Koepke L, Joas S, Reith E, Hotter D, Misawa N, Akaki K, Uehata T, Mino T, Miyamoto S, Noda T, Yamashita A, Standley DM, Kirchhoff F, Sauter D, Koyanagi Y, Takeuchi O. N4BP1 restricts HIV-1 and its inactivation by MALT1 promotes viral reactivation. Nat Microbiol 2019; 4:1532-1544. [PMID: 31133753 DOI: 10.1038/s41564-019-0460-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 04/16/2019] [Indexed: 01/04/2023]
Abstract
RNA-modulating factors not only regulate multiple steps of cellular RNA metabolism, but also emerge as key effectors of the immune response against invading viral pathogens including human immunodeficiency virus type-1 (HIV-1). However, the cellular RNA-binding proteins involved in the establishment and maintenance of latent HIV-1 reservoirs have not been extensively studied. Here, we screened a panel of 62 cellular RNA-binding proteins and identified NEDD4-binding protein 1 (N4BP1) as a potent interferon-inducible inhibitor of HIV-1 in primary T cells and macrophages. N4BP1 harbours a prototypical PilT N terminus-like RNase domain and inhibits HIV-1 replication by interacting with and degrading viral mRNA species. Following activation of CD4+ T cells, however, N4BP1 undergoes rapid cleavage at Arg 509 by the paracaspase named mucosa-associated lymphoid tissue lymphoma translocation 1 (MALT1). Mutational analyses and knockout studies revealed that MALT1-mediated inactivation of N4BP1 facilitates the reactivation of latent HIV-1 proviruses. Taken together, our findings demonstrate that the RNase N4BP1 is an efficient restriction factor of HIV-1 and suggest that inactivation of N4BP1 by induction of MALT1 activation might facilitate elimination of latent HIV-1 reservoirs.
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Affiliation(s)
- Daichi Yamasoba
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan.,Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Kei Sato
- Laboratory of Systems Virology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan.,CREST, Japan Science and Technology Agency, Saitama, Japan.,Department of Systems Virology, Institute for Medical Science, University of Tokyo, Tokyo, Japan
| | - Takuya Ichinose
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan.,Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Tomoko Imamura
- Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Lennart Koepke
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Simone Joas
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Elisabeth Reith
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Dominik Hotter
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Naoko Misawa
- Laboratory of Systems Virology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Kotaro Akaki
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan.,Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Takuya Uehata
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Takashi Mino
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Sho Miyamoto
- Laboratory of Ultrastructural Virology, Institute for Frontier Life and Medical Sciences, Kyoto, Japan
| | - Takeshi Noda
- Laboratory of Ultrastructural Virology, Institute for Frontier Life and Medical Sciences, Kyoto, Japan
| | - Akio Yamashita
- Department of Molecular Biology, Yokohama City University School of Medicine, Kanagawa, Japan
| | - Daron M Standley
- Department of Genome Informatics, Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Frank Kirchhoff
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Daniel Sauter
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Yoshio Koyanagi
- Laboratory of Systems Virology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Osamu Takeuchi
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan. .,Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan.
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20
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Burmeister AR, Marriott I. The Interleukin-10 Family of Cytokines and Their Role in the CNS. Front Cell Neurosci 2018; 12:458. [PMID: 30542269 PMCID: PMC6277801 DOI: 10.3389/fncel.2018.00458] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/12/2018] [Indexed: 12/15/2022] Open
Abstract
Resident cells of the central nervous system (CNS) play an important role in detecting insults and initiating protective or sometimes detrimental host immunity. At peripheral sites, immune responses follow a biphasic course with the rapid, but transient, production of inflammatory mediators giving way to the delayed release of factors that promote resolution and repair. Within the CNS, it is well known that glial cells contribute to the onset and progression of neuroinflammation, but it is only now becoming apparent that microglia and astrocytes also play an important role in producing and responding to immunosuppressive factors that serve to limit the detrimental effects of such responses. Interleukin-10 (IL-10) is generally considered to be the quintessential immunosuppressive cytokine, and its ability to resolve inflammation and promote wound repair at peripheral sites is well documented. In the present review article, we discuss the evidence for the production of IL-10 by glia, and describe the ability of CNS cells, including microglia and astrocytes, to respond to this suppressive factor. Furthermore, we review the literature for the expression of other members of the IL-10 cytokine family, IL-19, IL-20, IL-22 and IL-24, within the brain, and discuss the evidence of a role for these poorly understood cytokines in the regulation of infectious and sterile neuroinflammation. In concert, the available data indicate that glia can produce IL-10 and the related cytokines IL-19 and IL-24 in a delayed manner, and these cytokines can limit glial inflammatory responses and/or provide protection against CNS insult. However, the roles of other IL-10 family members within the CNS remain unclear, with IL-20 appearing to act as a pro-inflammatory factor, while IL-22 may play a protective role in some instances and a detrimental role in others, perhaps reflecting the pleiotropic nature of this cytokine family. What is clear is that our current understanding of the role of IL-10 and related cytokines within the CNS is limited at best, and further research is required to define the actions of this understudied family in inflammatory brain disorders.
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Affiliation(s)
- Amanda R Burmeister
- Department of Biological Sciences, The University of North Carolina at Charlotte, Charlotte, NC, United States
| | - Ian Marriott
- Department of Biological Sciences, The University of North Carolina at Charlotte, Charlotte, NC, United States
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21
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Nakatsuka Y, Vandenbon A, Mino T, Yoshinaga M, Uehata T, Cui X, Sato A, Tsujimura T, Suzuki Y, Sato A, Handa T, Chin K, Sawa T, Hirai T, Takeuchi O. Pulmonary Regnase-1 orchestrates the interplay of epithelium and adaptive immune systems to protect against pneumonia. Mucosal Immunol 2018; 11:1203-1218. [PMID: 29695841 DOI: 10.1038/s41385-018-0024-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 02/14/2018] [Accepted: 03/20/2018] [Indexed: 02/04/2023]
Abstract
Inhaled pathogens including Pseudomonas aeruginosa initially encounter airway epithelial cells (AECs), which are poised to evoke cell-intrinsic innate defense, affecting second tier of hematopoietic cell-mediated immune reaction. However, it is largely unknown how pulmonary immune responses mediated by a variety of immune cells are coordinated. Here we show that Regnase-1, an endoribonuclease expressed in AECs and immune cells, plays an essential role in coordinating innate responses and adaptive immunity against P. aeruginosa infection. Intratracheal treatment of mice with heat-killed P. aeruginosa resulted in prolonged disappearance of Regnase-1 consistent with sustained expression of Regnase-1 target inflammatory genes, whereas the transcription factor NF-κB was only transiently activated. AEC-specific deletion of Regnase-1 not only augmented innate defenses against P. aeruginosa but also enhanced secretion of Pseudomonas-specific IgA and Th17 accumulation in the lung, culminating in conferring significant resistance against P. aeruginosa re-infection in vivo. Although Regnase-1 directly controls distinct sets of genes in each of AECs and T cells, degradation of Regnase-1 in both cell types is beneficial for maximizing acquired immune responses. Collectively, these results demonstrate that Regnase-1 orchestrates AEC-mediated and immune cell-mediated host defense against pulmonary bacterial infection.
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Affiliation(s)
- Yoshinari Nakatsuka
- Laboratory of Infection and Prevention, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, 253 Shogoin Kawara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.,Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.,Agency for Medical Research and Development-Core Research for Evolutional Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, 100-0004, Japan
| | - Alexis Vandenbon
- Laboratory of Infection and Prevention, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, 253 Shogoin Kawara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Takashi Mino
- Laboratory of Infection and Prevention, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, 253 Shogoin Kawara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.,Agency for Medical Research and Development-Core Research for Evolutional Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, 100-0004, Japan
| | - Masanori Yoshinaga
- Laboratory of Infection and Prevention, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, 253 Shogoin Kawara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.,Agency for Medical Research and Development-Core Research for Evolutional Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, 100-0004, Japan
| | - Takuya Uehata
- Laboratory of Infection and Prevention, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, 253 Shogoin Kawara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.,Agency for Medical Research and Development-Core Research for Evolutional Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, 100-0004, Japan
| | - Xiaotong Cui
- Laboratory of Infection and Prevention, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, 253 Shogoin Kawara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.,Agency for Medical Research and Development-Core Research for Evolutional Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, 100-0004, Japan
| | - Ayuko Sato
- Department of Pathology, Hyogo College of Medicine, 1-1, Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Tohru Tsujimura
- Department of Pathology, Hyogo College of Medicine, 1-1, Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Yutaka Suzuki
- Laboratory of Functional Genomics, Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba, 277-8562, Japan
| | - Atsuyasu Sato
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Tomohiro Handa
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Kazuo Chin
- Department of Respiratory Care and Sleep Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Teiji Sawa
- Department of Anesthesiology, Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Toyohiro Hirai
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Osamu Takeuchi
- Laboratory of Infection and Prevention, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, 253 Shogoin Kawara-cho, Sakyo-ku, Kyoto, 606-8507, Japan. .,Agency for Medical Research and Development-Core Research for Evolutional Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, 100-0004, Japan.
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MINO T, TAKEUCHI O. Post-transcriptional regulation of immune responses by RNA binding proteins. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2018; 94:248-258. [PMID: 29887569 PMCID: PMC6085518 DOI: 10.2183/pjab.94.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Cytokines are critical mediators of inflammation and host immune defense. Cytokine production is regulated at both transcriptional and post-transcriptional levels. Post-transcriptional damping of inflammatory mRNAs is mediated by a set of RNA binding proteins (RBPs) interacting with cis-elements, such as AU-rich elements (ARE) and stem-loop structures. Whereas ARE-binding proteins such as tristetraprolin and a stem-loop recognizing protein, Roquin, downregulate cytokine mRNA abundance by recruiting a CCR4-NOT deadenylase complex, another stem-loop RBP, Regnase-1, acts as an endoribonuclease, directly degrading target cytokine mRNAs. These RBPs control translation-active or -inactive mRNAs in distinct intracellular locations. The presence of various RBPs regulating mRNAs in distinct locations enables elaborate control of cytokines under inflammatory conditions. Dysregulation of cytokine mRNA decay leads to pathologies such as the development of autoimmune diseases or impaired activation of immune responses. Here we review current knowledge about the post-transcriptional regulation of immune responses by RBPs and the importance of their alteration during inflammatory pathology and autoimmunity.
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Affiliation(s)
- Takashi MINO
- Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Osamu TAKEUCHI
- Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
- Correspondence should be addressed: O. Takeuchi, Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan (e-mail: )
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23
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Takeuchi O. Endonuclease Regnase-1/Monocyte chemotactic protein-1-induced protein-1 (MCPIP1) in controlling immune responses and beyond. WILEY INTERDISCIPLINARY REVIEWS-RNA 2017; 9. [PMID: 28929622 DOI: 10.1002/wrna.1449] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 08/15/2017] [Accepted: 08/17/2017] [Indexed: 12/14/2022]
Abstract
The activation of inflammatory cells is controlled at transcriptional and posttranscriptional levels. Posttranscriptional regulation modifies mRNA stability and translation, allowing for elaborate control of proteins required for inflammation, such as proinflammatory cytokines, prostaglandin synthases, cell surface co-stimulatory molecules, and even transcriptional modifiers. Such regulation is important for coordinating the initiation and resolution of inflammation, and is mediated by a set of RNA-binding proteins (RBPs), including Regnase-1, Roquin, Tristetraprolin (TTP), and AU-rich elements/poly(U)-binding/degradation factor 1 (AUF1). Among these, Regnase-1, also known as Zc3h12a and Monocyte chemotactic protein-1-induced protein-1 (MCPIP1), acts as an endoribonuclease responsible for the degradation of mRNAs involved in inflammatory responses. Conversely, the RBPs Roquin and TTP trigger exonucleolytic degradation of mRNAs by recruiting the CCR4-NOT deadenylase complex. Regnase-1 specifically recognizes stem-loop structures present in 3'-untranslated regions of cytokine mRNAs, and directly degrades the mRNAs in a translation- and ATP-dependent RNA helicase upframeshift 1 (UPF1)-dependent manner that is reminiscent of nonsense-mediated decay. Regnase-1 regulates the activation of innate and acquired immune cells, and is critical for maintaining immune homeostasis as well as preventing over-activation of the immune system under inflammatory conditions. Furthermore, recent studies have revealed that Regnase-1 and its family members are involved not only in immunity but also in various biological processes. In this article, I review molecular mechanisms of Regnase-1-mediated mRNA decay and its physiological roles. WIREs RNA 2018, 9:e1449. doi: 10.1002/wrna.1449 This article is categorized under: RNA Interactions with Proteins and Other Molecules > Protein-RNA Interactions: Functional Implications RNA Turnover and Surveillance > Regulation of RNA Stability RNA in Disease and Development > RNA in Disease.
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Affiliation(s)
- Osamu Takeuchi
- Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, AMED-CREST, AMED, Kyoto, Japan
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24
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Cyclooxygenase-2 inhibitors differentially attenuate pentylenetetrazol-induced seizures and increase of pro- and anti-inflammatory cytokine levels in the cerebral cortex and hippocampus of mice. Eur J Pharmacol 2017; 810:15-25. [PMID: 28583427 DOI: 10.1016/j.ejphar.2017.05.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 04/24/2017] [Accepted: 05/08/2017] [Indexed: 12/31/2022]
Abstract
Seizures increase prostaglandin and cytokine levels in the brain. However, it remains to be determined whether cyclooxygenase-2 (COX-2) derived metabolites play a role in seizure-induced cytokine increase in the brain and whether anticonvulsant activity is shared by all COX-2 inhibitors. In this study we investigated whether three different COX-2 inhibitors alter pentylenetetrazol (PTZ)-induced seizures and increase of interleukin-1β (IL-1β), interleukin-6 (IL-6), interferon-γ (INF-γ), tumor necrosis factor-α (TNF-α) and interleukin-10 (IL-10) levels in the hippocampus and cerebral cortex of mice. Adult male albino Swiss mice received nimesulide, celecoxib or etoricoxib (0.2, 2 or 20mg/kg in 0.1% carboxymethylcellulose (CMC) in 5% Tween 80, p.o.). Sixty minutes thereafter the animals were injected with PTZ (50mg/kg, i.p.) and the latency to myoclonic jerks and to generalized tonic-clonic seizures were recorded. Twenty minutes after PTZ injection animals were killed and cytokine levels were measured. PTZ increased cytokine levels in the cerebral cortex and hippocampus. While celecoxib and nimesulide attenuated PTZ -induced increase of proinflammatory cytokines in the cerebral cortex, etoricoxib did not. Nimesulide was the only COX-2 inhibitors that attenuated PTZ-induced seizures. This effect coincided with an increase of IL-10 levels in the cerebral cortex and hippocampus, constituting circumstantial evidence that IL-10 increase may be involved in the anticonvulsant effect of nimesulide.
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Vanherwegen AS, Ferreira GB, Smeets E, Yamamoto Y, Kato S, Overbergh L, Gysemans C, Mathieu C. The phenotype and function of murine bone marrow-derived dendritic cells is not affected by the absence of VDR or its ability to bind 1α,25-dihydroxyvitamin D 3. J Steroid Biochem Mol Biol 2016; 164:239-245. [PMID: 26343449 DOI: 10.1016/j.jsbmb.2015.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 08/07/2015] [Accepted: 08/11/2015] [Indexed: 02/07/2023]
Abstract
The nuclear vitamin D receptor (VDR) is generally recognized as a ligand-dependent transcription factor that mediates the actions of its natural ligand, 1α,25-dihydroxyvitamin D3 (1α,25(OH)2D3) on multiple target genes involved in mineral homeostasis, bone development, as well as immune reactivity. As the VDR is widely distributed in nearly all cells of the body, it implies that the vitamin D endocrine system may regulate many cell types and functions. Experiments in VDR null mice established that the VDR has intrinsically critical roles in skin and keratinocyte biology but not in immune responses. Oppositely, absence of the VDR ligand is linked to susceptibility to autoimmunity, illustrating a potential role for the unliganded VDR in the immune system. This discrepancy stimulated us to further investigate the impact of the VDR on the phenotype and function of myeloid dendritic cells (DCs) generated ex vivo from bone marrow precursors of VDR null (with a truncated VDR) and VDR ΔAF2 mice (with a mutated C-terminal activation factor 2 domain thus rendering ligand-induced gene transcription impossible). Absent or unliganded VDR did not affect bone marrow-derived myeloid DC generation. DCs obtained from VDR null and VDR ΔAF2 bone marrow cells had comparable MHC-II, and costimulatory molecule CD86, CD80 and CD40 expression than DCs from wild-type bone marrow cells. Additionally, an unliganded VDR did not affect the cytokine production nor the antigen-specific T cell stimulatory capacity of bone marrow-derived DCs. In conclusion, we showed that although clear effects of 1α,25-dihydroxyvitamin D3 are described on DC generation, absence of VDR or presence of an unliganded VDR does not affect the profile and function of ex vivo generated bone marrow-derived DCs.
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Affiliation(s)
- An-Sofie Vanherwegen
- Laboratory for Clinical and Experimental Endocrinology, Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Gabriela Bomfim Ferreira
- Laboratory for Clinical and Experimental Endocrinology, Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Elien Smeets
- Laboratory for Clinical and Experimental Endocrinology, Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Yoko Yamamoto
- Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo, Japan
| | - Shigeaki Kato
- Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo, Japan
| | - Lut Overbergh
- Laboratory for Clinical and Experimental Endocrinology, Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Conny Gysemans
- Laboratory for Clinical and Experimental Endocrinology, Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium.
| | - Chantal Mathieu
- Laboratory for Clinical and Experimental Endocrinology, Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium
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26
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Dong D, Zhong W, Sun Q, Zhang W, Sun X, Zhou Z. Oxidative products from alcohol metabolism differentially modulate pro-inflammatory cytokine expression in Kupffer cells and hepatocytes. Cytokine 2016; 85:109-19. [PMID: 27314544 DOI: 10.1016/j.cyto.2016.06.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 06/07/2016] [Accepted: 06/08/2016] [Indexed: 12/20/2022]
Abstract
Pro-inflammatory cytokines play a vital role in the pathogenesis of alcoholic steatohepatitis. The present study was to determine the role of alcohol-induced oxidative stress in modulating cytokine production. A rat model of alcohol consumption was used to determine alcohol-induced hepatic cytokine expression. Chronic alcohol exposure caused lipid accumulation, oxidative stress, and inflammation in the livers of Wistar rats. The role of oxidative stress in regulating cell type-specific cytokine production was further dissected in vitro. Lipopolysaccharide (LPS) dose-dependently upregulated TNF-α, MIP-1α, MCP-1, and CINC-1 in Kupffer cells-SV40, whereas TNF-α dose-dependently induced CINC-1, IP-10, and MIP-2 expression in H4IIEC3 hepatoma cells. An additive effect on cytokine production was observed in both Kupffer cells-SV40 and hepatocytes when combined hydrogen peroxide with LPS or TNF-α, respectively, which was associated with NF-κB activation and histone H3 hyper-acetylation. Unexpectedly, an inhibitory effect of 4-hydroxynonenal on cytokine production was revealed in LPS-treated Kupffer cells-SV40. Mechanistic study showed that 4-hydroxynonenal significantly enhanced mRNA degradation of TNF-α, MCP-1, and MIP-1α, and decreased the protein levels of MCP-1 in LPS-stimulated Kupffer cells-SV40 through reducing the phosphorylation of mRNA binding proteins. This study suggests that Kupffer cells and hepatocytes express distinct pro-inflammatory cytokines/chemokines in response to alcohol intoxication, and oxidative products (4-hydroxynonenal) differentially modulate pro-inflammatory cytokine/chemokine production via NF-κB signaling, histone acetylation, and mRNA stability.
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Affiliation(s)
- Daoyin Dong
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Wei Zhong
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Qian Sun
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA; Department of Nutrition, University of North Carolina at Greensboro, Greensboro, NC, USA
| | - Wenliang Zhang
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Xinguo Sun
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Zhanxiang Zhou
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA; Department of Nutrition, University of North Carolina at Greensboro, Greensboro, NC, USA.
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27
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Nakayama H, Nishida K, Otsu K. Macromolecular Degradation Systems and Cardiovascular Aging. Circ Res 2016; 118:1577-92. [DOI: 10.1161/circresaha.115.307495] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 02/29/2016] [Indexed: 11/16/2022]
Abstract
Aging-related cardiovascular diseases are a rapidly increasing problem worldwide. Cardiac aging demonstrates progressive decline of diastolic dysfunction of ventricle and increase in ventricular and arterial stiffness accompanied by increased fibrosis stimulated by angiotensin II and proinflammatory cytokines. Reactive oxygen species and multiple signaling pathways on cellular senescence play major roles in the process. Aging is also associated with an alteration in steady state of macromolecular dynamics including a dysfunction of protein synthesis and degradation. Currently, impaired macromolecular degradation is considered to be closely related to enhanced inflammation and be involved in the process and mechanism of cardiac aging. Herein, we review the role and mechanisms of the degradation system of intracellular macromolecules in the process and pathophysiology of cardiovascular aging.
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Affiliation(s)
- Hiroyuki Nakayama
- From the Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan (H.N.); and Cardiovascular Division, King’s College London British Heart Foundation Centre of Research Excellence, London, United Kingdom (K.N., K.O.)
| | - Kazuhiko Nishida
- From the Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan (H.N.); and Cardiovascular Division, King’s College London British Heart Foundation Centre of Research Excellence, London, United Kingdom (K.N., K.O.)
| | - Kinya Otsu
- From the Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan (H.N.); and Cardiovascular Division, King’s College London British Heart Foundation Centre of Research Excellence, London, United Kingdom (K.N., K.O.)
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28
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Ganguly K, Giddaluru J, August A, Khan N. Post-transcriptional Regulation of Immunological Responses through Riboclustering. Front Immunol 2016; 7:161. [PMID: 27199986 PMCID: PMC4850162 DOI: 10.3389/fimmu.2016.00161] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 04/15/2016] [Indexed: 12/22/2022] Open
Abstract
Immunological programing of immune cells varies in response to changing environmental signals. This process is facilitated by modifiers that regulate the translational fate of mRNAs encoding various immune mediators, including cytokines and chemokines, which in turn determine the rapid activation, tolerance, and plasticity of the immune system. RNA-binding proteins (RBPs) recruited by the specific sequence elements in mRNA transcripts are one such modifiers. These RBPs form RBP-RNA complexes known as "riboclusters." These riboclusters serve as RNA sorting machinery, where depending upon the composition of the ribocluster, translation, degradation, or storage of mRNA is controlled. Recent findings suggest that this regulation of mRNA homeostasis is critical for controlling the immune response. Here, we present the current knowledge of the ribocluster-mediated post-transcriptional regulation of immune mediators and highlight recent findings regarding their implications for the pathogenesis of acute or chronic inflammatory diseases.
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Affiliation(s)
- Koelina Ganguly
- Department of Biotechnology and Bioinformatics, School of Life Sciences, University of Hyderabad , Hyderabad , India
| | - Jeevan Giddaluru
- Department of Biotechnology and Bioinformatics, School of Life Sciences, University of Hyderabad , Hyderabad , India
| | - Avery August
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University , New York, NY , USA
| | - Nooruddin Khan
- Department of Biotechnology and Bioinformatics, School of Life Sciences, University of Hyderabad , Hyderabad , India
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29
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Takeuchi O. HuR keeps interferon-β mRNA stable. Eur J Immunol 2015; 45:1296-9. [PMID: 25824620 DOI: 10.1002/eji.201545616] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 03/23/2015] [Accepted: 03/27/2015] [Indexed: 01/14/2023]
Abstract
The expression of interferon (IFN) β is highly induced in immune and nonimmune cells in response to virus infection. This upregulation is mediated at both transcriptional and posttranscriptional levels. Whereas the signaling pathways triggered by innate virus receptors leading to transcription factor activation have been extensively studied, the mechanisms by which IFN-β mRNA stability is posttranscriptionally controlled are not fully understood. In this issue of the European Journal of Immunology, Herdy et al. [Eur. J. Immunol. 2015 45:1500-1511] show that a human RNA-binding protein, embryonic lethal, abnormal vision, drosophila-like 1 (ELAVL1)/Hu antigen R (HuR), strongly associates with IFN-β mRNA via AU-rich sequences present in its 3' untranslated region in various human cell lines. The authors show that ELAVL1/HuR is required for the stabilization of IFN-β mRNA, and suppression of ELAVL1/HuR by its inhibitor MS-444 leads to impaired expression of IFN-β in response to viral dsRNA treatment. Thus, this study uncovers a novel mechanism of posttranscriptional IFN-β mRNA regulation in response to virus infection, through IFN-β stabilization by ELAVL1/HuR. Future studies are expected to identify further regulatory mechanisms of IFN-β stabilization and destabilization in the course of antiviral responses.
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Affiliation(s)
- Osamu Takeuchi
- Laboratory of Infection and Prevention, Institute for Virus Research, Kyoto University, Kyoto, Japan.,CREST, JST, Kyoto, Japan
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30
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Nishida K, Yamaguchi O, Otsu K. Degradation systems in heart failure. J Mol Cell Cardiol 2015; 84:212-22. [PMID: 25981331 DOI: 10.1016/j.yjmcc.2015.05.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 05/05/2015] [Accepted: 05/07/2015] [Indexed: 11/29/2022]
Abstract
Heart failure is a complex clinical syndrome that results from any structural or functional impairment of ventricular filling or the ejection of blood, and is a leading cause of morbidity and mortality in industrialized countries. The mechanisms underlying the development of heart failure are multiple, complex and not well understood. Cardiac mass and its homeostasis are maintained by the balance between protein synthesis and degradation, and an imbalance is likely to result in cellular dysfunction and disease. The protein degradation systems are the principle mechanisms for maintaining cellular homeostasis via protein quality control. Three major protein degradation systems have been identified, namely the calpain system, autophagy, and the ubiquitin proteasome system. Proinflammatory mediators involve the development and progression of heart failure. DNA and RNA degradation systems play a critical role in regulating inflammation and maintaining cellular homeostasis mediated by damaged DNA clearance and posttranscriptional regulation, respectively. This review discusses some recent advances in understanding the role of these degradation systems in heart failure.
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Affiliation(s)
- Kazuhiko Nishida
- Cardiovascular Division, King's College London British Heart Foundation Centre of Excellence, London SE5 9NU, UK
| | - Osamu Yamaguchi
- Department of Cardiovascular Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kinya Otsu
- Cardiovascular Division, King's College London British Heart Foundation Centre of Excellence, London SE5 9NU, UK.
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Ferreira-Hermosillo A, Molina-Ayala M, Ramírez-Rentería C, Vargas G, Gonzalez B, Isibasi A, Archundia-Riveros I, Mendoza V. Inflammatory Cytokine Profile Associated with Metabolic Syndrome in Adult Patients with Type 1 Diabetes. J Diabetes Res 2015; 2015:972073. [PMID: 26273680 PMCID: PMC4530274 DOI: 10.1155/2015/972073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 02/06/2015] [Accepted: 02/23/2015] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE To compare the serum concentration of IL-6, IL-10, TNF, IL-8, resistin, and adiponectin in type 1 diabetic patients with and without metabolic syndrome and to determine the cut-off point of the estimated glucose disposal rate that accurately differentiated these groups. DESIGN We conducted a cross-sectional evaluation of all patients in our type 1 diabetes clinic from January 2012 to January 2013. Patients were considered to have metabolic syndrome when they fulfilled the joint statement criteria and were evaluated for clinical, biochemical, and immunological features. METHODS We determined serum IL-6, IL-8, IL-10, and TNF with flow cytometry and adiponectin and resistin concentrations with enzyme linked immunosorbent assay in patients with and without metabolic syndrome. We also compared estimated glucose disposal rate between groups. RESULTS We tested 140 patients. Forty-four percent fulfilled the metabolic syndrome criteria (n = 61), 54% had central obesity, 30% had hypertriglyceridemia, 29% had hypoalphalipoproteinemia, and 19% had hypertension. We observed that resistin concentrations were higher in patients with MS. CONCLUSION . We found a high prevalence of MS in Mexican patients with T1D. The increased level of resistin may be related to the increased fat mass and could be involved in the development of insulin resistance.
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Affiliation(s)
- Aldo Ferreira-Hermosillo
- Endocrinology Department, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtémoc 330, Colonia Doctores, 06720 Mexico City, MEX, Mexico
| | - Mario Molina-Ayala
- Endocrinology Department, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtémoc 330, Colonia Doctores, 06720 Mexico City, MEX, Mexico
| | - Claudia Ramírez-Rentería
- Experimental Endocrinology Investigation Unit, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtémoc 330, Colonia Doctores, 06720 Mexico City, MEX, Mexico
| | - Guadalupe Vargas
- Endocrinology Department, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtémoc 330, Colonia Doctores, 06720 Mexico City, MEX, Mexico
| | - Baldomero Gonzalez
- Endocrinology Department, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtémoc 330, Colonia Doctores, 06720 Mexico City, MEX, Mexico
| | - Armando Isibasi
- Immunochemistry Medical Investigation Unit, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtémoc 330, Colonia Doctores, 06720 Mexico City, MEX, Mexico
| | - Irma Archundia-Riveros
- Immunochemistry Medical Investigation Unit, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtémoc 330, Colonia Doctores, 06720 Mexico City, MEX, Mexico
| | - Victoria Mendoza
- Endocrinology Department, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtémoc 330, Colonia Doctores, 06720 Mexico City, MEX, Mexico
- *Victoria Mendoza:
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32
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Shin JS, Choi HE, Kim SD, Lee YS, Cho YW, Lee KT. Anti-inflammatory effects of 7-hydroxyl-1-methylindole-3-acetonitrile, a synthetic arvelexin derivative, on the macrophages through destabilizing mPGES-1 mRNA and suppressing NF-κB activation. Chem Biol Interact 2014; 224:68-77. [PMID: 25451575 DOI: 10.1016/j.cbi.2014.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 09/04/2014] [Accepted: 10/06/2014] [Indexed: 01/24/2023]
Abstract
We previously demonstrated that 7-hydroxyl-1-methylindole-3-acetonitrile (7-HMIA), a synthesized analog of arvelexin, showed the strong inhibitory effects on LPS-induced NO and PGE2 production in macrophages. In this study, we focused on elucidating the anti-inflammatory properties of 7-HMIA and the mechanisms involved using in vitro and in vivo experimental models. In LPS-induced RAW 264.7 macrophages, 7-HMIA significantly inhibited the release of proinflammatory mediators such as prostaglandin E2 (PGE2), nitric oxide (NO), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6). We also found that 7-HMIA suppressed PGE2 production not by inhibiting cyclooxygenase-2 (COX-2) expression or activity, but rather by suppressing the mRNA stability of microsomal prostaglandin E synthase (mPGES-1). Furthermore, 7-HMIA mediated attenuation of inducible NO synthase (iNOS), TNF-α, and IL-6 was closely associated with suppression of transcriptional activities of nuclear factor-kappa B (NF-κB), by decreasing p65 nuclear translocation and Akt phosphorylation. Animal studies revealed that 7-HMIA potently suppressed the carrageenan-induced paw edema and myeloperoxidase (MPO) activity in paw tissues. Taken together, our data indicated that the molecular basis for the anti-inflammatory properties of 7-HMIA involved the inhibition of mRNA stability of mPGES-1 and PI3K/Akt-mediated NF-κB pathways.
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Affiliation(s)
- Ji-Sun Shin
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea; Reactive Oxygen Species Medical Research Center, School of Medicine, Kyung Hee University, Seoul, Republic of Korea; Department of Physiology, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hye-Eun Choi
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea; Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea
| | - Soo-Dong Kim
- Department of Urology, College of Medicine, Dong-A University, Pusan 602-715, Republic of Korea
| | - Yong Sup Lee
- Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea; Laboratory of Medicinal Chemistry, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea
| | - Young-Wuk Cho
- Reactive Oxygen Species Medical Research Center, School of Medicine, Kyung Hee University, Seoul, Republic of Korea; Department of Physiology, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Kyung Tae Lee
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea; Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea.
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