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Li F, Bian H, Wang W, Ning L, Xu M, Sun S, Ren W, Qin C, Qi J. HBV infection suppresses the expression of inflammatory macrophage miR‑210. Mol Med Rep 2018; 19:1833-1839. [PMID: 30592291 DOI: 10.3892/mmr.2018.9795] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 11/26/2018] [Indexed: 11/06/2022] Open
Abstract
It has been previously reported that hepatitis B e‑antigen (HBeAg) induces microRNA (miR)‑155 expression and promotes liver injury by increasing inflammatory cytokine production in macrophages. Moreover, it was previously demonstrated that miR‑210 alleviates lipopolysaccharide‑stimulated proinflammatory cytokine production in macrophages. In addition, accumulating evidence suggests that miR‑210 is able to suppress hepatitis B virus (HBV) replication in HepG2.2.15 cells. However, it remains unclear whether miR‑210, similar to miR‑155, affects the progress of hepatitis B by regulating macrophage function. Reverse transcription‑quantitative polymerase chain reaction analysis was used to detect miR‑210 levels in serum and cells. HBV‑associated antigens stimulated different types of macrophages and facilitated the observation of the effects of these antigens on miR‑210 expression in macrophages. Co‑culture of peripheral blood monocytes from healthy controls and the serum of patients with chronic hepatitis B (CHB) was conducted to evaluate the effect of HBV‑associated elements in the serum on the expression of the macrophage miR‑210 in vivo. It was observed that miR‑210 expression levels were decreased in the peripheral blood monocytes (PBMs) and serum of patients with CHB and negatively associated with serum alanine aminotransferase and aspartate aminotransferase, but not other clinical parameters including hepatitis B surface antigen (HBsAg), HBeAg, anti‑HBe antibody (HBeAb) and hepatitis B core antibody (HBcAb) and HBV‑DNA. Notably, it was demonstrated that miR‑210 expression was not affected by treatment with HBV‑associated antigens in different types of macrophages. Notably, the serum of patients with CHB was able to markedly downregulate the miR‑210 expression of PBMs in healthy controls. These findings suggested that, unlike the induction of miR‑155 by HBeAg, there may be certain other elements, apart from HBV‑associated antigens, regulating miR‑210 levels in the serum and PBMs of patients with CHB that affect macrophage activation.
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Affiliation(s)
- Feifei Li
- Department of Infectious Disease, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Hongjun Bian
- Department of Emergency Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Wenwen Wang
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Liping Ning
- Department of Rehabilitation Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Miao Xu
- Department of Gastroenterology, Jinan Hospital, Jinan, Shandong 250013, P.R. China
| | - Shuohuan Sun
- Department of Infectious Disease, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Wanhua Ren
- Department of Infectious Disease, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Chengyong Qin
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Jianni Qi
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, Shandong 250021, P.R. China
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Ding Y, Wang L, Zhao Q, Wu Z, Kong L. MicroRNA‑93 inhibits chondrocyte apoptosis and inflammation in osteoarthritis by targeting the TLR4/NF‑κB signaling pathway. Int J Mol Med 2018; 43:779-790. [PMID: 30569118 PMCID: PMC6317687 DOI: 10.3892/ijmm.2018.4033] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 12/07/2018] [Indexed: 01/16/2023] Open
Abstract
Osteoarthritis (OA) is a serious disease of the articular cartilage, and inflammation has been implicated in its pathogenesis. Previously, microRNAs (miRNAs) have been proposed as novel regulators of inflammation, however, the functional role of microRNAs in regulating inflammation in OA remains to be fully elucidated. The aim of the present study was to investigate the roles of miRNAs in OA inflammation and the underlying molecular mechanism. Firstly, the miRNA expression patterns were analyzed in the articular cartilage tissues from experimental OA mice using an miRNA microarray. miRNA (miR)-93 was identified with particular interest due to its reported effects on apoptosis and inflammation suppression. Subsequently, the expression of miR-93 was further validated in the articular cartilage tissues of OA mice and lipopolysaccharide (LPS)-stimulated primary chondrocytes. Using this LPS-induced chondrocyte injury model, the overexpression of miR-93 enhanced cell viability, improved cell apoptosis and attenuated the inflammatory response, as reflected by reductions in pro-inflammatory cytokines, including tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6. In addition, Toll-like receptor 4 (TLR4), an important regulator of the nuclear factor-κB (NF-κB) signaling pathway, was identified as a direct target of miR-93 in chondrocytes. Furthermore, the restoration of TLR4 markedly abrogated the inhibitory effects of miR-93 on the chondrocyte apoptosis and inflammation induced by LPS. In addition, the overexpression of miR-93 by agomir-miR-93 significantly inhibited the levels of pro-inflammatory cytokines and cell apoptosis, whereas antagomir-93 exacerbated apoptosis and inflammation in vivo. Taken together, the results of the study suggested that miR-93 may be a promising therapeutic target for the treatment of human OA.
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Affiliation(s)
- Yanjie Ding
- Department of Rheumatology and Immunology, Huaihe Hospital of Henan University, Kaifeng, Henan 475000, P.R. China
| | - Laifang Wang
- Department of Rheumatology and Immunology, Huaihe Hospital of Henan University, Kaifeng, Henan 475000, P.R. China
| | - Qing Zhao
- Department of Rheumatology and Immunology, Huaihe Hospital of Henan University, Kaifeng, Henan 475000, P.R. China
| | - Zhenzhen Wu
- Department of Rheumatology and Immunology, Huaihe Hospital of Henan University, Kaifeng, Henan 475000, P.R. China
| | - Lingli Kong
- Department of Rheumatology and Immunology, Huaihe Hospital of Henan University, Kaifeng, Henan 475000, P.R. China
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53
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Vergadi E, Vaporidi K, Tsatsanis C. Regulation of Endotoxin Tolerance and Compensatory Anti-inflammatory Response Syndrome by Non-coding RNAs. Front Immunol 2018; 9:2705. [PMID: 30515175 PMCID: PMC6255943 DOI: 10.3389/fimmu.2018.02705] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 11/01/2018] [Indexed: 12/17/2022] Open
Abstract
The onset and the termination of innate immune response must be tightly regulated to maintain homeostasis and prevent excessive inflammation, which can be detrimental to the organism, particularly in the context of sepsis. Endotoxin tolerance and compensatory anti-inflammatory response syndrome (CARS) describe a state of hypo-responsiveness characterized by reduced capacity of myeloid cells to respond to inflammatory stimuli, particularly those initiated by bacterial lipopolysaccharide (LPS). To achieve endotoxin tolerance, extensive reprogramming otherwise termed as “innate immune training”, is required that leads to both modifications of the intracellular components of TLR signaling and also to alterations in extracellular soluble mediators. Non-coding RNAs (ncRNAs) have been recognized as critical regulators of TLR signaling. Specifically, several microRNAs (miR-146, miR-125b, miR-98, miR-579, miR-132, let-7e and others) are induced upon TLR activation and reciprocally promote endotoxin tolerance and/or cross tolerance. Many other miRNAs have been also shown to negatively regulate TLR signaling. The long non-coding (lnc)RNAs (Mirt2, THRIL, MALAT1, lincRNA-21 and others) are also altered upon TLR activation and negatively regulate TLR signaling. Furthermore, the promotion or termination of myeloid cell tolerance is not only regulated by intracellular mediators but is also affected by other TLR-independent soluble signals that often achieve their effect via modulation of intracellular ncRNAs. In this article, we review recent evidence on the role of different ncRNAs in the context of innate immune cell tolerance and trained immunity, and evaluate their impact on immune system homeostasis.
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Affiliation(s)
- Eleni Vergadi
- Department of Paediatrics, Medical School, University of Crete, Heraklion, Greece.,Department of Clinical Chemistry, Medical School, University of Crete, Heraklion, Greece
| | - Katerina Vaporidi
- Department of Intensive Care Medicine, Medical School, University of Crete, Heraklion, Greece
| | - Christos Tsatsanis
- Department of Clinical Chemistry, Medical School, University of Crete, Heraklion, Greece
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Yang Y, Sun D, Zhou J, Tan C, Zhang H, Chen Z, Hao C, Zhang J. LPS expands MDSCs by inhibiting apoptosis through the regulation of the GATA2/let-7e axis. Immunol Cell Biol 2018; 97:142-151. [PMID: 30221399 DOI: 10.1111/imcb.12204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 09/11/2018] [Accepted: 09/12/2018] [Indexed: 12/13/2022]
Abstract
Myeloid-derived suppressor cells (MDSCs) represent a group of immature myeloid cells composed of myeloid progenitor cells and immature myeloid cells that can negatively regulate immune responses by inhibiting T-cell function. In mice, MDSCs are broadly defined by the expression of CD11b and Gr1. We and others have shown that injection of a lethal or sublethal dose of lipopolysaccharide (LPS) into mice could result in the expansion of MDSCs in the bone marrow (BM), spleen and blood. Until now, the molecular mechanisms responsible for this expansion are poorly studied; specifically, the roles of the individual microRNAs (miRNAs) which may be involved remain largely unknown. We performed microarray analysis to compare the miRNA expression profiles of CD11b+ Gr1+ cells sorted from the BM of LPS-injected and phosphate-buffered saline-injected mice. We identified let-7e, which was highly upregulated in the LPS-treated group, as a potent regulator of LPS-induced MDSC expansion. Furthermore, let-7e overexpression in BM chimeric mice led to a noticeable increase in the population of CD11b+ Gr1+ cells, which resulted from reduced cellular apoptosis. Further studies showed that let-7e could directly target caspase-3 to inhibit cell apoptosis, and upregulation of let-7e in LPS-stimulated MDSCs could be due to the relieved repression of let-7e transcription exerted by downregulated GATA2. Our findings suggest that LPS expands MDSCs by inhibiting apoptosis through the regulation of the GATA2/let-7e axis.
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Affiliation(s)
- Yi Yang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Di Sun
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Ji Zhou
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Chensheng Tan
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Hong Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - ZhengRong Chen
- Department of Respiratory Disease, Children's hospital of Soochow University, Suzhou, China
| | - ChuangLi Hao
- Department of Respiratory Disease, Children's hospital of Soochow University, Suzhou, China
| | - Jinping Zhang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
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Alkannin protects human renal proximal tubular epithelial cells from LPS-induced inflammatory injury by regulation of microRNA-210. Biomed Pharmacother 2018; 108:1679-1685. [PMID: 30372870 DOI: 10.1016/j.biopha.2018.09.102] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/14/2018] [Accepted: 09/18/2018] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Lupus nephritis (LN) is a fatal complication induced by systemic lupus erythematosus (SLE). As the current therapeutic approaches for LN are not a permanent cure, we studied the potential therapeutic effects of alkannin (ALK) on LPS-treated human proximal tubular cells (HK-2 cells), aiming to find novel therapeutic drugs for LN treatment. METHODS Cell viability, apoptotic cells, expression of p53 and proteins associated with apoptosis, and release of IL-6 and TNF-α in LPS-treated HK-2 cells were measured by using CCK-8 assay, flow cytometry assay, Western blot analysis and RT-qPCR/ELISA, respectively. Effects of ALK on LPS-treated HK-2 cells were evaluated, and miR-210 expression was determined by RT-qPCR. Afterwards, whether ALK affected LPS-treated cells via regulating miR-210 was verified, and the involvements of the NF-κB and p38MAPK pathways were finally studied using Western blot analysis. RESULTS LPS-induced decrease of cell viability, increase of apoptosis, and release of IL-6 and TNF-α were attenuated by ALK treatment. We found miR-210 level in LPS-treated cells was elevated by ALK, and miR-210 inhibition could effectively reverse the effects of ALK on LPS-treated cells. Moreover, we found the phosphorylation levels of key kinases in the NF-κB and p38MAPK pathways were reduced by ALK via up-regulating miR-210 in LPS-treated cells. CONCLUSION ALK attenuated LPS-induced inflammatory injury in HK-2 cells possibly through up-regulating miR-210. The LPS-induced activation of the NF-κB and p38MAPK pathways was attenuated by ALK via regulation of miR-210.
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56
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Liu D, Cao S, Zhou Y, Xiong Y. Recent advances in endotoxin tolerance. J Cell Biochem 2018; 120:56-70. [PMID: 30246452 DOI: 10.1002/jcb.27547] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 08/02/2018] [Indexed: 12/13/2022]
Abstract
Endotoxin tolerance is defined as a reduced capacity of a cell to respond endotoxin (lipopolysaccharide, LPS) challenge after an initial encounter with endotoxin in advance. The body becomes tolerant to subsequent challenge with a lethal dose of endotoxin and cytokines release and cell/tissue damage induced by inflammatory reaction are significantly reduced in the state of endotoxin tolerance. The main characteristics of endotoxin tolerance are downregulation of inflammatory mediators such as tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β), and C-X-C motif chemokine 10 (CXCL10) and upregulation of anti-inflammatory cytokines such as IL-10 and transforming growth factor β (TGF-β). Therefore, endotoxin tolerance is often regarded as the regulatory mechanism of the host against excessive inflammation. Endotoxin tolerance is a complex pathophysiological process and involved in multiple cellular signal pathways, receptor alterations, and biological molecules. However, the exact mechanism remains elusive up to date. To better understand the underlying cellular and molecular mechanisms of endotoxin tolerance, it is crucial to investigate the comprehensive cellular signal pathways, signaling proteins, cell surface molecules, proinflammatory and anti-inflammatory cytokines, and other mediators. Endotoxin tolerance plays an important role in reducing the mortality of sepsis, endotoxin shock, and other endotoxin-related diseases. Recent reports indicated that endotoxin tolerance is also related to other diseases such as cystic fibrosis, acute coronary syndrome, liver ischemia-reperfusion injury, and cancer. The aim of this review is to discuss the recent advances in endotoxin tolerance mainly based on the cellular and molecular mechanisms by outline the current state of the knowledge of the involvement of the toll-like receptor 4 (TLR4) signaling pathways, negative regulate factor, microRNAs, apoptosis, chromatin modification, and gene reprogramming of immune cells in endotoxin tolerance. We hope to provide a new idea and scientific basis for the rational treatment of endotoxin-related diseases such as endotoxemia, sepsis, and endotoxin shock clinically.
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Affiliation(s)
- Dan Liu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Shousong Cao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Yejiang Zhou
- Gastrointestinal Surgery, Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, China
| | - Yuxia Xiong
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
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57
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Wang W, Bian H, Li F, Li X, Zhang D, Sun S, Song S, Zhu Q, Ren W, Qin C, Qi J. HBeAg induces the expression of macrophage miR-155 to accelerate liver injury via promoting production of inflammatory cytokines. Cell Mol Life Sci 2018; 75:2627-2641. [PMID: 29349567 PMCID: PMC11105519 DOI: 10.1007/s00018-018-2753-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 01/11/2018] [Accepted: 01/16/2018] [Indexed: 12/14/2022]
Abstract
Activation of Kupffer cells (KCs) induced that inflammatory cytokine production plays a central role in the pathogenesis of HBV infection. The previous studies from our and other laboratory demonstrated miRNAs can regulate TLR-inducing inflammatory responses to macrophage. However, the involvement of miRNAs in HBV-associated antigen-induced macrophage activation is still not thoroughly understood. Here, we evaluated the effects and mechanisms of miR-155 in HBV-associated antigen-induced macrophage activation. First, co-culture assay of HepG2 or HepG2.2.15 cells and RAW264.7 macrophages showed that HepG2.2.15 cells could significantly promote macrophages to produce inflammatory cytokines. Furthermore, we, respectively, stimulated RAW264.7 macrophages, mouse primary peritoneal macrophages, or healthy human peripheral blood monocytes with HBV-associated antigens, including HBcAg, HBeAg, and HBsAg, and found that only HBeAg could steadily enhance the production of inflammatory cytokines in these cells. Subsequently, miRNAs sequencing presented the up- or down-regulated expression of multiple miRNAs in HBeAg-stimulated RAW264.7 cells. In addition, we verified the expression of miR-155 and its precursors BIC gene with q-PCR in the system of co-culture or HBeAg-stimulated macrophages. Meanwhile, the increased miR-155 expression was positively correlation with serum ALT, AST, and HBeAg levels in AHB patients. Although MAPK, PI3K, and NF-κB signal pathways were all activated during HBeAg treatment, only PI3K and NF-κB pathways were involved in miR-155 expression induced by HBeAg stimulation. Consistently, miR-155 over-expression inhibited production of inflammatory cytokines, which could be reversed by knocking down miR-155. Moreover, we demonstrated that miR-155 regulated HBeAg-induced cytokine production by targeting BCL-6, SHIP-1, and SOCS-1. In conclusion, our data revealed that HBeAg augments the expression of miR-155 in macrophages via PI3K and NF-κB signal pathway and the increased miR-155 promotes HBeAg-induced inflammatory cytokine production by inhibiting the expression of BCL-6, SHIP-1, and SOCS-1.
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Affiliation(s)
- Wenwen Wang
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Hongjun Bian
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Feifei Li
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Xiao Li
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Di Zhang
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Shuohuan Sun
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Shouyang Song
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Qiang Zhu
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Wanhua Ren
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Chengyong Qin
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China
| | - Jianni Qi
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China.
- Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control, Jinan, 250021, Shandong, China.
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Tahamtan A, Teymoori-Rad M, Nakstad B, Salimi V. Anti-Inflammatory MicroRNAs and Their Potential for Inflammatory Diseases Treatment. Front Immunol 2018; 9:1377. [PMID: 29988529 PMCID: PMC6026627 DOI: 10.3389/fimmu.2018.01377] [Citation(s) in RCA: 242] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 06/04/2018] [Indexed: 12/27/2022] Open
Abstract
Inflammation is a complicated biological and pathophysiological cascade of responses to infections and injuries, and inflammatory mechanisms are closely related to many diseases. The magnitude, the complicated network of pro- and anti-inflammatory factors, and the direction of the inflammatory response can impact on the development and progression of various disorders. The currently available treatment strategies often target the symptoms and not the causes of inflammatory disease and may often be ineffective. Since the onset and termination of inflammation are crucial to prevent tissue damage, a range of mechanisms has evolved in nature to regulate the process including negative and positive feedback loops. In this regard, microRNAs (miRNAs) have emerged as key gene regulators to control inflammation, and it is speculated that they are fine-tune signaling regulators to allow for proper resolution and prevent uncontrolled progress of inflammatory reactions. In this review, we discuss recent findings related to significant roles of miRNAs in immune regulation, especially the potential utility of these molecules as novel anti-inflammatory agents to treat inflammatory diseases. Furthermore, we discuss the possibilities of using miRNAs as drugs in the form of miRNA mimics or miRNA antagonists.
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Affiliation(s)
- Alireza Tahamtan
- Infectious Diseases Research Centre, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Microbiology, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Majid Teymoori-Rad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Britt Nakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Vahid Salimi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Sun Y, Han J, Chu Q, Liu X, Xu T. microRNA-210 participates in regulating RIG-I signaling pathway via targeting DUBA in miiuy croaker after poly(I:C) stimulation. FISH & SHELLFISH IMMUNOLOGY 2018; 77:1-7. [PMID: 29408541 DOI: 10.1016/j.fsi.2018.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/26/2018] [Accepted: 02/02/2018] [Indexed: 06/07/2023]
Abstract
MicroRNAs (miRNAs) are endogenous small non-coding RNAs that participate in the regulation of various biological processes. A series of microRNAs have been shown to be important regulators of both innate and adaptive immune responses, including RIG-I signaling pathway. In this study, we evaluated the regulation role of miR-210 in the RLRs signaling pathway of miiuy croaker. Upon poly(I:C) stimulation, the expression of miR-210 in both miiuy croaker spleen tissues and macrophages were significantly upregulated. By means of the dual luciferase reporter assay, a direct interaction between miR-210 and the 3-untranslated region (UTR) of Deubiquitinating enzyme A (DUBA) was confirmed, and we found that miR-210 could reduce the luciferase levels of wild-type DUBA 3'UTR, whereas mutant-type led to a complete abrogation of the negative effect. Furthermore, the negative regulatory effects of pre-miR-210 on DUBA have been indicated in a dose- and time-dependent manners. As DUBA is an important regulator involved in the RLRs signaling pathway and could bind with and regulate TRAF3, we also examined the expression patterns of DUBA and TRAF3 in vivo and in vitro. We found that the expression of both DUBA and TRAF3 were significantly changed upon poly(I:C) stimulation in miiuy croaker. The expression patterns between miR-210 and DUBA showed a negative correlation, which indicated that miR-210 can target and downregulate the expression of DUBA. Overall, these results will enrich the knowledge of immune response related miRNAs in miiuy croaker, which will be useful for better understanding the complicated regulatory networks in fish species.
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Affiliation(s)
- Yuena Sun
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Jingjing Han
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Qing Chu
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Xuezhu Liu
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China.
| | - Tianjun Xu
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China.
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60
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Li H, Jiang T, Li MQ, Zheng XL, Zhao GJ. Transcriptional Regulation of Macrophages Polarization by MicroRNAs. Front Immunol 2018; 9:1175. [PMID: 29892301 PMCID: PMC5985397 DOI: 10.3389/fimmu.2018.01175] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 05/11/2018] [Indexed: 01/26/2023] Open
Abstract
Diversity and plasticity are the hallmarks of cells from the monocyte-macrophage lineage. Macrophages undergo classical M1 or alternative M2 activation in response to the microenvironment signals. Several transcription factors, such as peroxisome proliferator-activated receptors, signal transducers and activators of transcription, CCAAT-enhancer-binding proteins, interferon regulatory factors, Kruppel-like factors, GATA binding protein 3, nuclear transcription factor-κB, and c-MYC, were found to promote the expression of specific genes, which dictate the functional polarization of macrophages. Importantly, these transcription factors can be regulated by microRNAs (miRNAs), a group of small non-coding RNAs, which regulate gene expression through translation repression or mRNA degradation. Recent studies have also revealed that miRNAs control macrophage polarization by regulating transcription factors in response to the microenvironment signals. This review will summarize recent progress of miRNAs in the transcriptional regulation of macrophage polarization and provide the insights into the development of macrophage-centered diagnostic and therapeutic strategies.
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Affiliation(s)
- Heng Li
- The Clinic Medical College, Guilin Medical University, Guilin, Guangxi, China
| | - Ting Jiang
- Department of Practice Educational, Office of Academic Affairs, Guilin Medical University, Guilin, Guangxi, China
| | - Meng-Qi Li
- Department of Histology and Embryology, Guilin Medical University, Guilin, Guangxi, China
| | - Xi-Long Zheng
- Department of Biochemistry and Molecular Biology, The Libin Cardiovascular Institute of Alberta, The University of Calgary, Health Sciences Center, Calgary, AB, Canada.,Key Laboratory of Molecular Targets and Clinical Pharmacology, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Guo-Jun Zhao
- Department of Histology and Embryology, Guilin Medical University, Guilin, Guangxi, China.,Department of Biochemistry and Molecular Biology, The Libin Cardiovascular Institute of Alberta, The University of Calgary, Health Sciences Center, Calgary, AB, Canada
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61
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miRNAs reshape immunity and inflammatory responses in bacterial infection. Signal Transduct Target Ther 2018; 3:14. [PMID: 29844933 PMCID: PMC5968033 DOI: 10.1038/s41392-018-0006-9] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/20/2017] [Accepted: 12/10/2017] [Indexed: 12/15/2022] Open
Abstract
Pathogenic bacteria cause various infections worldwide, especially in immunocompromised and other susceptible individuals, and are also associated with high infant mortality rates in developing countries. MicroRNAs (miRNAs), small non-coding RNAs with evolutionarily conserved sequences, are expressed in various tissues and cells that play key part in various physiological and pathologic processes. Increasing evidence implies roles for miRNAs in bacterial infectious diseases by modulating inflammatory responses, cell penetration, tissue remodeling, and innate and adaptive immunity. This review highlights some recent intriguing findings, ranging from the correlation between aberrant expression of miRNAs with bacterial infection progression to their profound impact on host immune responses. Harnessing of dysregulated miRNAs in bacterial infection may be an approach to improving the diagnosis, prevention and therapy of infectious diseases. Changes in production of tiny cellular RNAs in response to bacterial infection could guide the development of better diagnostics and therapies. MicroRNAs regulate other genes by binding to messenger RNA strands and controlling their translation into proteins. Xikun Zhou, Min Wu and colleagues of the University of North Dakota have now reviewed current knowledge about how microRNA levels shift during infection with various bacterial pathogens. These microRNAs can modulate the immune response as well as pathways that influence metabolic activity and cell survival. Increasing studies have indicated that shifts in microRNA levels in response to different infections could provide a potential bacterial ‘fingerprint’ for achieving accurate diagnosis. With deeper insight into how different microRNAs influence infection, it might one day day become possible to target these molecules with ‘antisense’ or ‘agonist’ drugs that modulate their activity.
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62
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Momen-Heravi F, Bala S. miRNA regulation of innate immunity. J Leukoc Biol 2018; 103:1205-1217. [PMID: 29656417 DOI: 10.1002/jlb.3mir1117-459r] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/15/2018] [Accepted: 02/25/2018] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs (miRNAs) are small noncoding RNA and are pivotal posttranscriptional regulators of both innate and adaptive immunity. They act by regulating the expression of multiple immune genes, thus, are the important elements to the complex immune regulatory network. Deregulated expression of specific miRNAs can lead to potential autoimmunity, immune tolerance, hyper-inflammatory phenotype, and cancer initiation and progression. In this review, we discuss the contributory pathways and mechanisms by which several miRNAs influence the development of innate immunity and fine-tune immune response. Moreover, we discuss the consequence of deregulated miRNAs and their pathogenic implications.
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Affiliation(s)
- Fatemeh Momen-Heravi
- Division of Periodontics, Section of Oral and Diagnostic Sciences, Columbia University College of Dental Medicine, New York, New York, USA
| | - Shashi Bala
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
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63
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Kumar V, Kumar A, Das S, Kumar A, Abhishek K, Verma S, Mandal A, Singh RK, Das P. Leishmania donovani Activates Hypoxia Inducible Factor-1α and miR-210 for Survival in Macrophages by Downregulation of NF-κB Mediated Pro-inflammatory Immune Response. Front Microbiol 2018; 9:385. [PMID: 29568285 PMCID: PMC5852103 DOI: 10.3389/fmicb.2018.00385] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 02/20/2018] [Indexed: 12/13/2022] Open
Abstract
Micro RNAs (miRNAs) have emerged as a critical regulator of several biological processes in both animals and plants. They have also been associated with regulation of immune responses in many human diseases during recent years. Visceral leishmaniasis (VL) is the most severe form of leishmaniasis, which is characterized by impairment of both innate and adaptive immune responses. In the present study, we observed that Leishmania establishes hypoxic environment in host macrophages that induces the expression of hypoxia inducible factor-1α (HIF-1α) and miRNA-210. Further, the expression of miRNA-210 was found to be dependent on activation of HIF-1α expression. The HIF-1α silencing by siRNA resulted in significantly (p < 0.001) decreased expression of miR-210 in parasites infected macrophages. We also observed that in siHIF-1α or antagomir-210 treated L. donovani infected macrophages, the parasitic load and percentage infectivity were significantly (p < 0.001) decreased. Furthermore, we found that inhibition of miR-210 leads to activation of NF-κB subunit p50, and it forms heterodimer with p65 and translocates into the nucleus from the cytoplasm. This significantly (p < 0.05) induced the transcription of pro-inflammatory cytokines genes such as TNF-α and IL-12 in miRNA-210 inhibited macrophages compared to uninhibited macrophages whereas the level of IL-10, an anti-inflammatory cytokine, was found to be significantly decreased (p < 0.001). These findings suggested that L. donovani infection induces hypoxic environment inside the macrophages that activates HIF-1α. Further, HIF-1α upregulates miR-210, which eventually establishes a suitable environment for the survival of parasite inside the host macrophages by downregulating NF-κB mediated pro-inflammatory immune responses.
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Affiliation(s)
- Vinod Kumar
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Ajay Kumar
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Sushmita Das
- Department of Microbiology, All India Institute of Medical Sciences, Patna, India
| | - Ashish Kumar
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Kumar Abhishek
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Sudha Verma
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Abhishek Mandal
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Rakesh K Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Pradeep Das
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
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64
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MicroRNA-22 negatively regulates poly(I:C)-triggered type I interferon and inflammatory cytokine production via targeting mitochondrial antiviral signaling protein (MAVS). Oncotarget 2018; 7:76667-76683. [PMID: 27705941 PMCID: PMC5363539 DOI: 10.18632/oncotarget.12395] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 09/25/2016] [Indexed: 12/18/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that play important roles in regulating the host immune response. Here we found that miR-22 is induced in glial cells upon stimulation with poly(I:C). Overexpression of miR-22 in the cultured cells resulted in decreased activity of interferon regulatory factor-3 and nuclear factor-kappa B, which in turn led to reduced expression of interferon-β and inflammatory cytokines, including tumor necrosis factor-α, interleukin-1β, interleukin-6, and chemokine (C-C motif) ligand 5, upon stimulation with poly(I:C), whereas knockdown of miR-22 had the opposite effect. We used a combination of bioinformatics and experimental techniques to demonstrate that mitochondrial antiviral signaling protein (MAVS), which positively regulates type I interferon production, is a novel target of miR-22. Overexpression of miR-22 decreased the activity of a luciferase reporter containing the MAVS 3′-untranslated region and led to decreased MAVS mRNA and protein levels. In contrast, ectopic expression of miR-22 inhibitor led to elevated MAVS expression. Collectively, our results demonstrate that miR-22 negatively regulates poly(I:C)-induced production of type I interferon and inflammatory cytokines via targeting MAVS.
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65
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Kung LHW, Ravi V, Rowley L, Angelucci C, Fosang AJ, Bell KM, Little CB, Bateman JF. Cartilage MicroRNA Dysregulation During the Onset and Progression of Mouse Osteoarthritis Is Independent of Aggrecanolysis and Overlaps With Candidates From End-Stage Human Disease. Arthritis Rheumatol 2018; 70:383-395. [DOI: 10.1002/art.40378] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 11/10/2017] [Indexed: 01/13/2023]
Affiliation(s)
| | - Varshini Ravi
- University of Sydney and Royal North Shore Hospital; St. Leonards New South Wales Australia
| | - Lynn Rowley
- Murdoch Children's Research Institute; Parkville Victoria Australia
| | | | - Amanda J. Fosang
- Murdoch Children's Research Institute and University of Melbourne; Parkville Victoria Australia
| | - Katrina M. Bell
- Murdoch Children's Research Institute; Parkville Victoria Australia
| | - Christopher B. Little
- University of Sydney and Royal North Shore Hospital; St. Leonards New South Wales Australia
| | - John F. Bateman
- Murdoch Children's Research Institute and University of Melbourne; Parkville Victoria Australia
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66
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Bian H, Gao S, Zhang D, Zhao Q, Li F, Li X, Sun S, Song S, Li T, Zhu Q, Ren W, Qin C, Qi J. The E3 ubiquitin ligase MuRF2 attenuates LPS-induced macrophage activation by inhibiting production of inflammatory cytokines and migration. FEBS Open Bio 2018; 8:234-243. [PMID: 29435413 PMCID: PMC5794466 DOI: 10.1002/2211-5463.12367] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/15/2017] [Accepted: 11/24/2017] [Indexed: 01/06/2023] Open
Abstract
Muscle RING-finger (MuRF) proteins are E3 ubiquitin ligases that are expressed in striated muscle. MuRF2 is an important member of this family, but whether it is expressed in tissues other than striated muscle has not been thoroughly elucidated to date. In this study, we determined that MuRF2 is also expressed in other vital organs, including liver, lung, brain, spleen and kidney. Moreover, we show that the level of MuRF2 expression is significantly decreased in hepatic mononuclear cells of mice with lipopolysaccharide (LPS)/d-galactosamine-induced hepatitis and negatively correlated with the serum levels of alanine aminotransferase and aspartate aminotransferase in these mice. Furthermore, the expression of MuRF2 was down-regulated in RAW264.7 cells activated with LPS but not in cells treated with polyinosinic-polycytidylic acid (Poly(I:C)) or with lipidosome plus Poly(I:C). We also found that MuRF2 was able to translocate from the cytoplasm to the nucleus in RAW264.7 cells activated with LPS but not in cells treated with Poly(I:C). In addition, we demonstrated that interleukin 6 and tumour necrosis factor α production and macrophage migration were inhibited after MuRF2 was overexpressed in RAW264.7 cells. We further verified that nuclear factor-κB p65 subunit level was greatly reduced in RAW264.7 macrophage nuclei by gain of function. Taken together, these findings indicate that MuRF2 may rescue LPS-induced macrophage activation by suppressing the production of proinflammatory cytokines and cell migration. We also identify a novel function of MuRF2 in non-muscle tissues and cells.
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Affiliation(s)
- Hongjun Bian
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Shanshan Gao
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Di Zhang
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Qi Zhao
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Feifei Li
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Xiao Li
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Shuohuan Sun
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Shouyang Song
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Tao Li
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Qiang Zhu
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Wanhua Ren
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Chengyong Qin
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
| | - Jianni Qi
- Shandong Provincial Hospital Affiliated to Shandong University Jinan China.,Shandong Provincial Engineering and Technological Research Center for Liver Diseases Prevention and Control Jinan China
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67
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Abstract
Immunotoxicology is the study of immune system dysfunction that can result from occupational, inadvertent, or therapeutic exposure to a variety of chemical or biologic agents that alter the immune system and affect human health. Immunotoxicology can manifest in a variety of ways, with one of the most prominent effects being immunosuppression. Immunosuppression can be defined as a reduced ability of the immune system to respond to a challenge from a level considered normal, regardless of whether clinical disease results. Although immunosuppression can lead to an increased incidence and severity of infectious and neoplastic disease, interpreting data from experimental immunotoxicology studies, or even epidemiologic studies, for quantitative risk assessment has been a persistent challenge. Decades of research has resulted in the development of specific assays and the identification of sensitive endpoints that measure effects on the immune response, from which many regulatory agencies have developed specific immunotoxicity testing guidelines. However, establishing a direct link between exposure and disease manifestations for immunosuppression in humans is an ongoing challenge due to inherent limitations of epidemiological studies to draw causal conclusions. Efforts have been made to examine the relationships between laboratory measures of immune response and disease resistance in experimental animal models and also in human studies. The identification of sensitive endpoints and the development of experimental assays to identify suspect immunotoxicants are a primary focus of the field of immunotoxicology. This chapter is organized around sections discussing the impact and scientific basis of immunotoxicity testing, predictive immunotoxicity testing strategies, examples of immunotoxicity testing, and key considerations and recent developments related to effective testing strategies for health risk reduction.
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Affiliation(s)
- Stacey E Anderson
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, USA.
| | - Hillary L Shane
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, USA
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68
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Li B, Concepcion K, Meng X, Zhang L. Brain-immune interactions in perinatal hypoxic-ischemic brain injury. Prog Neurobiol 2017; 159:50-68. [PMID: 29111451 PMCID: PMC5831511 DOI: 10.1016/j.pneurobio.2017.10.006] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/26/2017] [Indexed: 01/07/2023]
Abstract
Perinatal hypoxia-ischemia remains the primary cause of acute neonatal brain injury, leading to a high mortality rate and long-term neurological deficits, such as behavioral, social, attentional, cognitive and functional motor deficits. An ever-increasing body of evidence shows that the immune response to acute cerebral hypoxia-ischemia is a major contributor to the pathophysiology of neonatal brain injury. Hypoxia-ischemia provokes an intravascular inflammatory cascade that is further augmented by the activation of resident immune cells and the cerebral infiltration of peripheral immune cells response to cellular damages in the brain parenchyma. This prolonged and/or inappropriate neuroinflammation leads to secondary brain tissue injury. Yet, the long-term effects of immune activation, especially the adaptive immune response, on the hypoxic-ischemic brain still remain unclear. The focus of this review is to summarize recent advances in the understanding of post-hypoxic-ischemic neuroinflammation triggered by the innate and adaptive immune responses and to discuss how these mechanisms modulate the brain vulnerability to injury. A greater understanding of the reciprocal interactions between the hypoxic-ischemic brain and the immune system will open new avenues for potential immunomodulatory therapy in the treatment of neonatal brain injury.
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Affiliation(s)
- Bo Li
- The Lawrence D. Longo, MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA.
| | - Katherine Concepcion
- The Lawrence D. Longo, MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
| | - Xianmei Meng
- The Lawrence D. Longo, MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
| | - Lubo Zhang
- The Lawrence D. Longo, MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
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69
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Li J, Zhang X, Chen L, Zhang Z, Zhang J, Wang W, Wu M, Shi B, Zhang X, Kozlowski M, Hu Y, Yuan Z. Circulating miR-210 and miR-22 combined with ALT predict the virological response to interferon-alpha therapy of CHB patients. Sci Rep 2017; 7:15658. [PMID: 29142236 PMCID: PMC5688172 DOI: 10.1038/s41598-017-15594-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 10/25/2017] [Indexed: 12/15/2022] Open
Abstract
Interferon-alpha (IFN-α) therapy of chronic hepatitis B (CHB) patients is constrained by limited response and side effects. We described a panel of circulating microRNAs (miRNAs) which could potentially predict outcome of IFN-α therapy. Here, we report development of a simplified scoring model for personalized treatment of CHB patients. 112 CHB patients receiving IFN-α treatment were randomly divided into a training (n = 75) or a validation group (n = 37). The expression of 15 candidate miRNAs was detected in training group with 5 miRNAs exhibiting significantly different levels (p < 0.0001) between early virological response (EVR) and non-early virological response (N-EVR). These 5 miRNAs were further tested in validation phase. Refinement analyses of results from training phase established a model composed of miR-210, miR-22 and alanine aminotransferase (ALT), with area under ROC curve (AUC) of 0.874 and 0.816 in training and validation groups, respectively. In addition, this model showed prognostic value for sustained virological response (SVR) (AUC = 0.821). Collectively, this simplified scoring model composed of miR-210, miR-22 and ALT can reproducibly predict the EVR and SVR of IFN-α therapy in CHB patients. The model should help to forecast the outcome of IFN-α treatment prior to therapy decision involving nucleoside analogs or IFNs.
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Affiliation(s)
- Jin Li
- Research Unit, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology at the School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiaonan Zhang
- Research Unit, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology at the School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Liang Chen
- Department of Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Zhanqing Zhang
- Department of Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Jiming Zhang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Weixia Wang
- Research Unit, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology at the School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Min Wu
- Research Unit, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology at the School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Bisheng Shi
- Research Unit, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology at the School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xinxin Zhang
- Institute of Infectious and Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Ruijin Hospital, Shanghai, China
| | - Maya Kozlowski
- Research Unit, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology at the School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yunwen Hu
- Research Unit, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.
| | - Zhenghong Yuan
- Research Unit, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China. .,Key Laboratory of Medical Molecular Virology at the School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.
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70
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Non-coding RNA: a potential biomarker and therapeutic target for sepsis. Oncotarget 2017; 8:91765-91778. [PMID: 29207683 PMCID: PMC5710963 DOI: 10.18632/oncotarget.21766] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 09/03/2017] [Indexed: 12/13/2022] Open
Abstract
Sepsis, a syndrome of physiologic, pathologic, and biochemical abnormalities caused by an altered systemic host response to infection, has become the main cause of death among patients admitted to the intensive care units. Recently, genome-wide expression analysis revealed that over 80% of the essential genetic elements were altered in critically ill patients. Notably, non-coding RNAs, including microRNAs, long non-coding RNAs and circular RNAs, have been proven to play essential roles in innate immunity, mitochondrial dysfunction and organ dysfunction. In this review, we introduced the biogenesis of non-coding RNAs briefly and summed up different kinds of non-coding RNAs in regulation of sepsis, which could provide a more comprehensive understanding about pathogenesis of the disease. Additionally, we summarized the limitations of current biomarkers and then recommended some non-coding RNAs as novel potential biomarkers for sepsis and sepsis-induced organ dysfunction. Besides, we also introduced some problems and challenges that need to be overcome during the clinical application of non-coding RNAs. Future research should focus on elucidating their molecular mechanisms, particularly long non-coding RNAs as well as circular RNAs and sepsis, to further understanding of the disease process. With the in-depth understanding of the mechanism of sepsis, non-coding RNAs provide a new insight into sepsis and could become the novel therapeutic targets in the future.
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71
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Bian H, Li F, Wang W, Zhao Q, Gao S, Ma J, Li X, Ren W, Qin C, Qi J. MAPK/p38 regulation of cytoskeleton rearrangement accelerates induction of macrophage activation by TLR4, but not TLR3. Int J Mol Med 2017; 40:1495-1503. [PMID: 28949380 PMCID: PMC5627867 DOI: 10.3892/ijmm.2017.3143] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 09/13/2017] [Indexed: 12/15/2022] Open
Abstract
Toll-like receptor 3 (TLR3) and TLR4 utilize adaptor proteins to activate mitogen-activated protein kinase (MAPK), resulting in the acute but transient inflammatory response aimed at the clearance of pathogens. In the present study, it was demonstrated that macrophage activation by lipopolysaccharide (LPS) or poly(I:C), leading to changes in cell morphology, differed significantly between the mouse macrophage cell line RAW264.7 and mouse primary peritoneal macrophages. Moreover, the expression of α- and β-tubulin was markedly decreased following LPS stimulation. By contrast, α- and β-tubulin expression were only mildly increased following poly(I:C) treatment. However, the expression of β-actin and GAPDH was not significantly affected. Furthermore, it was verified that vincristine pretreatment abrogated the cytoskeleton rearrangement and decreased the synthesis and secretion of proinflammatory cytokines and migration of macrophages caused by LPS. Finally, it was observed that the MAPK/p38 signaling pathway regulating cytoskeleton rearrangement may participate in LPS-induced macrophage cytokine production and migration. Overall, the findings of the present study indicated that MAPK/p38 regulation of the cytoskeleton, particularly tubulin proteins, plays an important role in LPS-induced inflammatory responses via alleviating the synthesis and secretion of proinflammatory cytokines and inhibiting the migration of macrophages.
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Affiliation(s)
- Hongjun Bian
- Department of Emergency Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Feifei Li
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Wenwen Wang
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Qi Zhao
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Shanshan Gao
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Jincai Ma
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Xiao Li
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Wanhua Ren
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Chengyong Qin
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Jianni Qi
- Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
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72
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Jaeger A, Hadlich F, Kemper N, Lübke-Becker A, Muráni E, Wimmers K, Ponsuksili S. MicroRNA expression profiling of porcine mammary epithelial cells after challenge with Escherichia coli in vitro. BMC Genomics 2017; 18:660. [PMID: 28836962 PMCID: PMC5571640 DOI: 10.1186/s12864-017-4070-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 08/16/2017] [Indexed: 12/14/2022] Open
Abstract
Background Coliform mastitis is a symptom of postpartum dysgalactia syndrome (PDS), a multifactorial infectious disease of sows. Our previous study showed gene expression profile change after bacterial challenge of porcine mammary epithelial cells (PMECs). These mRNA expression changes may be regulated through microRNAs (miRNAs) which play critical roles in biological processes. Therefore, miRNA expression profile was investigated in PMECs. Results PMECs were isolated from three lactating sows and challenged with heat-inactivated potential mastitis-causing pathogen Escherichia coli (E. coli) for 3 h and 24 h, in vitro. At 3 h post-challenge with E. coli, target gene prediction identified a critical role of miRNAs in regulation of host immune responses and homeostasis of PMECs mediated by affecting pathways including cytokine binding (miR-202, miR-3277, miR-4903); IL-10/PPAR signaling (miR-3277, miR-4317, miR-548); and NF-ĸB/TNFR2 signaling (miR-202, miR-2262, miR-885-3p). Target genes of miRNAs in PMECs at 24 h were significantly enriched in pathways associated with interferon signaling (miR-210, miR-23a, miR-1736) and protein ubiquitination (miR-125, miR-128, miR-1280). Conclusions This study provides first large-scale miRNA expression profiles and their predicted target genes in PMECs after contact with a potential mastitis-causing E. coli strain. Both, highly conserved miRNAs known from other species as well as novel miRNAs were identified in PMECs, representing candidate predictive biomarkers for PDS. Time-dependent pathogen clearance suggests an important role of PMECs in inflammatory response of the first cellular barrier of the porcine mammary gland. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-4070-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- A Jaeger
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196, Dummerstorf, Germany
| | - F Hadlich
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196, Dummerstorf, Germany
| | - N Kemper
- Institute for Animal Hygiene, Animal Welfare and Farm Animal Behaviour, University of Veterinary Medicine Hannover, Foundation, D-30559, Hannover, Germany
| | - A Lübke-Becker
- Institute of Microbiology and Epizootics, Department of Veterinary Medicine at the Freie Universität Berlin, D-14163, Berlin, Germany
| | - E Muráni
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196, Dummerstorf, Germany
| | - K Wimmers
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196, Dummerstorf, Germany
| | - S Ponsuksili
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196, Dummerstorf, Germany.
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Abdul-Maksoud RS, Sediq AM, Kattaia AAA, Elsayed WSH, Ezzeldin N, Abdel Galil SM, Ibrahem RA. Serum miR-210 and miR-155 expression levels as novel biomarkers for rheumatoid arthritis diagnosis. Br J Biomed Sci 2017; 74:209-213. [DOI: 10.1080/09674845.2017.1343545] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- RS Abdul-Maksoud
- Faculty of Medicine, Medical Biochemistry Department, Zagazig University, Zagazig, Egypt
| | - AM Sediq
- Faculty of Medicine, Clinical and Chemical Pathology Department, Zagazig University, Zagazig, Egypt
| | - AAA Kattaia
- Faculty of Medicine, Histology and Cell Biology Department, Zagazig University, Zagazig, Egypt
| | - WSH Elsayed
- Faculty of Medicine, Pathology Department, Zagazig University, Zagazig, Egypt
| | - N Ezzeldin
- Faculty of Medicine, Rheumatology and Rehabilitation Department, Zagazig University, Zagazig, Egypt
| | - SM Abdel Galil
- Faculty of Medicine, Rheumatology and Rehabilitation Department, Zagazig University, Zagazig, Egypt
| | - RA Ibrahem
- Faculty of Medicine, Public Health and Community Medicine Department, Menoufia University, Menoufia, Egypt
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74
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Nandakumar P, Tin A, Grove ML, Ma J, Boerwinkle E, Coresh J, Chakravarti A. MicroRNAs in the miR-17 and miR-15 families are downregulated in chronic kidney disease with hypertension. PLoS One 2017; 12:e0176734. [PMID: 28771472 PMCID: PMC5542606 DOI: 10.1371/journal.pone.0176734] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 04/14/2017] [Indexed: 01/11/2023] Open
Abstract
Background In older adults (aged 70–74 years), African-Americans have 4-fold higher risk of developing hypertension-attributed end-stage renal disease (ESRD) than European-Americans. A hypothesized mechanism linking hypertension and progressive chronic kidney disease (CKD) is the innate immune response and inflammation. Persons with CKD are also more susceptible to infection. Gene expression in peripheral blood can provide a view of the innate immune activation profile. We aimed to identify differentially expressed genes, microRNAs, and pathways in peripheral blood between cases with CKD and high blood pressure under hypertension treatment versus controls without CKD and with controlled blood pressure in African Americans. Methods Case and control pairs (N = 15x2) were selected from those without diabetes and were matched for age, sex, body mass index, APOL1 risk allele count, and hypertension medication use. High blood pressure under hypertension treatment was defined as hypertension medication use and systolic blood pressure (SBP) ≥ 145 mmHg. CKD was defined as estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73m2. Cases were selected from those with CKD and high blood pressure under hypertension treatment, and controls were selected from those without CKD (eGFR: 75–120 mL/min/1.73m2 and urine albumin-to-creatinine ratio < 30mg/g) and with blood pressure controlled by hypertension medication use (SBP < 135 mmHg and D(diastolic)BP < 90 mm Hg). We perform RNA sequencing of mRNA and microRNA and conducted differential expression and co-expression network analysis. Results Of 347 miRNAs included in the analysis, 14 were significantly associated with case status (Benjamini-Hochberg adjusted p-value [BH p] < 0.05). Of these, ten were downregulated in cases: three of each belong to the miR-17 and miR-15 families. In co-expression network analysis of miRNA, one module, which included 13 of the 14 significant miRNAs, had significant association with case status. Of the 14,488 genes and 41,739 transcripts included in the analysis, none had significant association with case status. Gene co-expression network analyses did not yield any significant associations for mRNA. Conclusion We have identified 14 differentially expressed miRNAs in the peripheral blood of CKD cases with high blood pressure under hypertension treatment as compared to appropriate controls. Most of the significant miRNAs were downregulated and have critical roles in immune cell functions. Future studies are needed to replicate our findings and determine whether the downregulation of these miRNAs in immune cells may influence CKD progression or complications.
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Affiliation(s)
- Priyanka Nandakumar
- McKusick - Nathans Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America
- Predoctoral Training Program in Human Genetics and Molecular Biology, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Adrienne Tin
- Johns Hopkins Bloomberg School of Public Health, Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, Maryland, United States of America
| | - Megan L. Grove
- Human Genetics Center, Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, United States of America
| | - Jianzhong Ma
- Human Genetics Center, Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, United States of America
| | - Eric Boerwinkle
- Human Genetics Center, Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, United States of America
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas, United States of America
| | - Josef Coresh
- Johns Hopkins Bloomberg School of Public Health, Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, Maryland, United States of America
| | - Aravinda Chakravarti
- McKusick - Nathans Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
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75
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Zhou B, Li H, Shi J. miR-27 inhibits the NF-κB signaling pathway by targeting leptin in osteoarthritic chondrocytes. Int J Mol Med 2017. [DOI: 10.3892/ijmm.2017.3021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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MicroRNA-210, MicroRNA-331, and MicroRNA-7 Are Differentially Regulated in Treated HIV-1-Infected Individuals and Are Associated With Markers of Systemic Inflammation. J Acquir Immune Defic Syndr 2017; 74:e104-e113. [PMID: 27749601 DOI: 10.1097/qai.0000000000001191] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Inflammation may contribute to an increased risk of cardiovascular disease (CVD) in HIV-1 infection. MicroRNAs (miRNAs) are involved in the regulation of inflammation. In treated HIV-1-infected individuals, we aimed to identify differentially expressed miRNAs with known roles in inflammation and CVD risk and to investigate associations between these and systemic inflammation. METHODS In a screening cohort including 14 HIV-1-infected individuals and 9 uninfected controls, microarray profiling was performed using peripheral blood mononuclear cells (PBMCs). Differentially regulated miRNAs previously related to inflammation and CVD were validated using real-time quantitative reverse-transcription polymerase chain reaction in 26 HIV-1-infected individuals and 20 uninfected controls. Validated miRNAs were measured in PBMCs, CD4 and CD8 T cells. Interleukin-6, tumor necrosis factor-alpha, high-sensitivity C-reactive protein, lipopolysaccharide (LPS), cytomegalovirus immunoglobulin G, lipids, and fasting glucose were measured, and associations with validated miRNAs were assessed with multiple linear regression analysis. RESULTS Upregulation of miR-210, miR-7, and miR-331 was found in PBMCs from HIV-1-infected individuals when compared with those from uninfected controls (P < 0.005). In contrast, miR-210 and miR-331 were downregulated in CD8 T cells. In multivariate analysis, miR-210 in CD8 T cells was negatively associated with LPS (P = 0.023) and triglycerides (P = 0.003) but positively associated with tumor necrosis factor-alpha (P = 0.004). MiR-7 in PBMC was positively associated with interleukin-6 (P = 0.025) and fasting glucose (P = 0.005), whereas miR-331 was negatively associated with LPS (P = 0.006). In PBMCs from HIV-1-infected individuals with low cytomegalovirus immunoglobulin G, miR-7, miR-29a, miR-221, and miR-222 were downregulated. CONCLUSION In 2 independent cohorts, miR-210, miR-7, and miR-331 were differentially regulated in treated HIV-1-infected individuals and associated with markers of systemic inflammation.
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Yang W, Ma J, Zhou W, Zhou X, Cao B, Fan D, Hong L. Biological implications and clinical value of mir-210 in gastrointestinal cancer. Expert Rev Gastroenterol Hepatol 2017; 11:539-548. [PMID: 28317401 DOI: 10.1080/17474124.2017.1309281] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hypoxia, a common feature of tumor microenvironment, is known to accelerate tumor development and growth by promoting the formation of a neoplastic environment. Recent studies have provided a wealth of evidence that miRNAs are significant members of the adaptive response to low oxygen in tumors. miR-210 is one of the hypoxia-induced miRNAs, which has been reported extensively in cancer researches. However, there is no systematic discussion about the role of miR-210 in gastrointestinal cancer. We conducted a literature research in database including PubMed, Elsevier Science Direct and Medline before 16 September 2016, in order to collect articles of miR-210 in gastrointestinal cancer. Areas covered: In the present review, we mainly discuss the following aspects: hypoxia-induced dysregulation of miR-210, the expression of miR-210 and tumorigenesis, the resultant changes of miR-210 targets and its roles in different types of gastrointestinal cancer progression, the diagnostic, therapeutic and prognostic value of miR-210 in gastrointestinal cancer. Expert commentary: Numerous researches have demonstrated the values of miR-210 in cancer diagnosis, prognosis and targeted therapies, especially in gastrointestinal cancers. However, there are also some existing problems and challenges in translating the new research findings into clinical utility. Further investigations and studies are still urgently required.
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Affiliation(s)
- Wanli Yang
- a State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases , Fourth Military Medical University , Xi'an , China
| | - Jiaojiao Ma
- a State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases , Fourth Military Medical University , Xi'an , China
| | - Wei Zhou
- a State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases , Fourth Military Medical University , Xi'an , China
| | - Xin Zhou
- a State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases , Fourth Military Medical University , Xi'an , China
| | - Bo Cao
- a State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases , Fourth Military Medical University , Xi'an , China
| | - Daiming Fan
- a State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases , Fourth Military Medical University , Xi'an , China
| | - Liu Hong
- a State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases , Fourth Military Medical University , Xi'an , China
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78
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Huang Q, Chen SS, Li J, Tao SS, Wang M, Leng RX, Pan HF, Ye DQ. miR-210 expression in PBMCs from patients with systemic lupus erythematosus and rheumatoid arthritis. Ir J Med Sci 2017; 187:243-249. [PMID: 28560518 DOI: 10.1007/s11845-017-1634-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 05/12/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND In hypoxic conditions, miRNA-210 plays an important role in regulating the expression of hypoxia-inducing factor-1α (HIF-1α) and the differentiation of T helper 17 (Th17) cells, and this may be involved in the development and function of the immune system. AIMS This study was to investigate the miR-210 expression levels in peripheral blood mononuclear cells (PBMCs) from patients with systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) and its association with the clinical and laboratory features of both diseases. METHODS Real-time quantitative reverse transcription polymerase chain reaction (RT-qPCR) was used to detect miR-210 expression levels in PBMCs from 35 patients with SLE, 38 patients with RA, and 35 healthy controls. RESULTS Compared with the healthy controls, the miR-210 expression levels were significantly increased in patients with SLE (P = 0.001) and there was increased significantly expression of miR-210 in SLE with pleuritis (Z = -2.345, P = 0.019) and anti-SSB/La-positive group (Z = -2.076, P = 0.038). However, we have not found the significant correlation between the miR-210 levels and the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) score (r s = 0.091, P = 0.602). Although, no significant difference between miR-210 levels in RA patients and those in healthy controls was found (Z = -1.226, P = 0. 220). There was a significant decreased expression of miR-210 in active RA patients than inactive RA patients (Z = -4.011, P < 0.001). CONCLUSIONS The dysregulation of miR-210 levels in SLE and RA patients suggests that miR-210 might play an important role in the pathogenesis of these diseases.
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Affiliation(s)
- Q Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, People's Republic of China.,Department of Epidemiology and Biostatistics, School of Public Health, Bengbu Medical College, Bengbu, Auhui, People's Republic of China
| | - S-S Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, People's Republic of China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Auhui, People's Republic of China
| | - J Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, People's Republic of China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Auhui, People's Republic of China
| | - S-S Tao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, People's Republic of China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Auhui, People's Republic of China
| | - M Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, People's Republic of China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Auhui, People's Republic of China
| | - R-X Leng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, People's Republic of China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Auhui, People's Republic of China
| | - H-F Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, People's Republic of China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Auhui, People's Republic of China
| | - D-Q Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, People's Republic of China. .,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Auhui, People's Republic of China.
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Morris NL, Hammer AM, Cannon AR, Gagnon RC, Li X, Choudhry MA. Dysregulation of microRNA biogenesis in the small intestine after ethanol and burn injury. Biochim Biophys Acta Mol Basis Dis 2017; 1863:2645-2653. [PMID: 28404517 DOI: 10.1016/j.bbadis.2017.03.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/08/2017] [Accepted: 03/31/2017] [Indexed: 12/11/2022]
Abstract
Ethanol exposure at the time of burn injury is a major contributor to post-burn pathogenesis. Many of the adverse effects associated with ethanol and burn injury are linked to an impaired intestinal barrier. The combined insult causes intestinal inflammation, resulting in tissue damage, altered tight junction expression, and increased intestinal permeability. MicroRNAs play a critical role in maintaining intestinal homeostasis including intestinal inflammation and barrier function. Specifically, miR-150 regulates inflammatory mediators which can contribute to gut barrier disruption. The present study examined whether ethanol and burn injury alter expression of microRNA processing enzymes (Drosha, Dicer, and Argonaute-2) and miR-150 in the small intestine. Male mice were gavaged with ethanol (~2.9g/kg) 4h prior to receiving a ~12.5% total body surface area full thickness burn. One or three days after injury, mice were euthanized and small intestinal epithelial cells (IECs) were isolated and analyzed for expression of microRNA biogenesis components and miR-150. Dicer mRNA and protein levels were not changed following the combined insult. Drosha and Argonaute-2 mRNA and protein levels were significantly reduced in IECs one day after injury; which accompanied reduced miR-150 expression. To further determine the role of miR-150 in intestinal inflammation, young adult mouse colonocytes were transfected with a miR-150 plasmid and stimulated with LPS (100ng/ml). miR-150 overexpression significantly reduced IL-6 and KC protein levels compared to vector control cells challenged with LPS. These results suggest that altered microRNA biogenesis and associated decrease in miR-150 likely contribute to increased intestinal inflammation following ethanol and burn injury.
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Affiliation(s)
- Niya L Morris
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA.; Integrative Cell Biology Program, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA.
| | - Adam M Hammer
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA.; Integrative Cell Biology Program, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA.
| | - Abigail R Cannon
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA.; Integrative Cell Biology Program, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA.
| | - Robin C Gagnon
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA..
| | - Xiaoling Li
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA..
| | - Mashkoor A Choudhry
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA.; Integrative Cell Biology Program, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA; Department of Microbiology and Immunology, Loyola University Chicago Health Sciences Campus, Maywood, IL 60153, USA.
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Elizabeth MC, Hernández de la Cruz ON, Mauricio CA. Infection of J774A.1 with different Mycobacterium species induces differential immune and miRNA-related responses. Microbiol Immunol 2017; 60:356-63. [PMID: 27041510 DOI: 10.1111/1348-0421.12380] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 03/01/2016] [Accepted: 03/21/2016] [Indexed: 11/30/2022]
Abstract
Macrophages act as a reservoir for Mycobacterium tuberculosis, producing latent infection in approximately 90% of infected people. In this study, J774A.1 mouse macrophage cell line response and microRNA (miRNA) expression during infection with the most relevant mycobacterial strains for humans (M. tuberculosis, M. bovis and M. bovis BCG) was explored. No significant differences in bacillary loads were observed between activate and naive macrophages infected with M. tuberculosis and M. bovis. Nitrite production inhibition and infection control were in accordance with the virulence of the strain. Expression of let-7e, miR-21, miR-155, miR-210 and miR-223 was opposite in the two species and miR-146b* and miR-1224 expression seemed to be part of the general response to infection.
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Affiliation(s)
- Mendoza-Coronel Elizabeth
- Genomic Sciences Program, Autonomous University of Mexico City, 290 San Lorenzo, Benito Juárez, Col del Valle Sur, 03100 Ciudad de México, México
| | - Olga Nohemí Hernández de la Cruz
- Genomic Sciences Program, Autonomous University of Mexico City, 290 San Lorenzo, Benito Juárez, Col del Valle Sur, 03100 Ciudad de México, México
| | - Castañón-Arreola Mauricio
- Genomic Sciences Program, Autonomous University of Mexico City, 290 San Lorenzo, Benito Juárez, Col del Valle Sur, 03100 Ciudad de México, México
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81
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Kiernan EA, Smith SMC, Mitchell GS, Watters JJ. Mechanisms of microglial activation in models of inflammation and hypoxia: Implications for chronic intermittent hypoxia. J Physiol 2017; 594:1563-77. [PMID: 26890698 DOI: 10.1113/jp271502] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 01/16/2016] [Indexed: 12/12/2022] Open
Abstract
Chronic intermittent hypoxia (CIH) is a hallmark of sleep apnoea, a condition associated with diverse clinical disorders. CIH and sleep apnoea are characterized by increased reactive oxygen species formation, peripheral and CNS inflammation, neuronal death and neurocognitive deficits. Few studies have examined the role of microglia, the resident CNS immune cells, in models of CIH. Thus, little is known concerning their direct contributions to neuropathology or the cellular mechanisms regulating their activities during or following pathological CIH. In this review, we identify gaps in knowledge regarding CIH-induced microglial activation, and propose mechanisms based on data from related models of hypoxia and/or hypoxia-reoxygenation. CIH may directly affect microglia, or may have indirect effects via the periphery or other CNS cells. Peripheral inflammation may indirectly activate microglia via entry of pro-inflammatory molecules into the CNS, and/or activation of vagal afferents that trigger CNS inflammation. CIH-induced release of damage-associated molecular patterns from injured CNS cells may also activate microglia via interactions with pattern recognition receptors expressed on microglia. For example, Toll-like receptors activate mitogen-activated protein kinase/transcription factor pathways required for microglial inflammatory gene expression. Although epigenetic effects from CIH have not yet been studied in microglia, potential epigenetic mechanisms in microglial regulation are discussed, including microRNAs, histone modifications and DNA methylation. Epigenetic effects can occur during CIH, or long after it has ended. A better understanding of CIH effects on microglial activities may be important to reverse CIH-induced neuropathology in patients with sleep disordered breathing.
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Affiliation(s)
- Elizabeth A Kiernan
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Stephanie M C Smith
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Gordon S Mitchell
- Department of Physical Therapy, University of Florida, Gainesville, FL, 32610, USA
| | - Jyoti J Watters
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
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Exosomes Derived from Embryonic Stem Cells as Potential Treatment for Cardiovascular Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 998:187-206. [DOI: 10.1007/978-981-10-4397-0_13] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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83
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Long CM, Lukomska E, Marshall NB, Nayak A, Anderson SE. Potential Inhibitory Influence of miRNA 210 on Regulatory T Cells during Epicutaneous Chemical Sensitization. Genes (Basel) 2016; 8:genes8010009. [PMID: 28035981 PMCID: PMC5295004 DOI: 10.3390/genes8010009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 12/06/2016] [Accepted: 12/19/2016] [Indexed: 12/14/2022] Open
Abstract
Toluene diisocyanate (TDI) is a potent low molecular weight chemical sensitizer and a leading cause of chemical-induced occupational asthma. The regulatory potential of microRNAs (miRNAs) has been recognized in a variety of disease states, including allergic disease; however, the roles of miRNAs in chemical sensitization are largely unknown. In a previous work, increased expression of multiple miRNAs during TDI sensitization was observed and several putative mRNA targets identified for these miRNAs were directly related to regulatory T-cell (Treg) differentiation and function including Foxp3 and Runx3. In this work, we show that miR-210 expression is increased in the mouse draining lymph node (dLN) and Treg subsets following dermal TDI sensitization. Alterations in dLN mRNA and protein expression of Treg related genes/putative miR-210 targets (foxp3, runx3, ctla4, and cd25) were observed at multiple time points following TDI exposure and in ex vivo systems. A Treg suppression assay, including a miR-210 mimic, was utilized to investigate the suppressive ability of Tregs. Cells derived from TDI sensitized mice treated with miR-210 mimic had less expression of miR-210 compared to the acetone control suggesting other factors, such as additional miRNAs, might be involved in the regulation of the functional capabilities of these cells. These novel findings indicate that miR-210 may have an inhibitory role in Treg function during TDI sensitization. Because the functional roles of miRNAs have not been previously elucidated in a model of chemical sensitization, these data contribute to the understanding of the potential immunologic mechanisms of chemical induced allergic disease.
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Affiliation(s)
- Carrie Mae Long
- Immunology and Microbial Pathogenesis Graduate Program, West Virginia University, Morgantown, WV 26505, USA.
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Allergy and Clinical Immunology Branch, Morgantown, WV 26505, USA.
| | - Ewa Lukomska
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Allergy and Clinical Immunology Branch, Morgantown, WV 26505, USA.
| | - Nikki B Marshall
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Allergy and Clinical Immunology Branch, Morgantown, WV 26505, USA.
| | - Ajay Nayak
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Allergy and Clinical Immunology Branch, Morgantown, WV 26505, USA.
| | - Stacey E Anderson
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Allergy and Clinical Immunology Branch, Morgantown, WV 26505, USA.
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Kim JH, Lee BR, Choi ES, Lee KM, Choi SK, Cho JH, Jeon WB, Kim E. Reverse Expression of Aging-Associated Molecules through Transfection of miRNAs to Aged Mice. MOLECULAR THERAPY. NUCLEIC ACIDS 2016; 6:106-115. [PMID: 28325277 PMCID: PMC5363412 DOI: 10.1016/j.omtn.2016.11.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 11/01/2016] [Accepted: 11/01/2016] [Indexed: 12/12/2022]
Abstract
Molecular changes during aging have been studied to understand the mechanism of aging progress. Herein, changes in microRNA (miRNA) expression in the whole blood of mice were studied to systemically reverse aging and propose them as non-invasive biomarkers. Through next-generation sequencing analysis, we selected 27 differentially expressed miRNAs during aging. The most recognized function involved was liver steatosis, a type of non-alcoholic fatty liver disease (NAFLD). Among 27 miRNAs, six were predicted to be involved in NAFLD, miR-16-5p, miR-17-5p, miR-21a-5p, miR-30c-5p, miR-103-3p, and miR-130a-3p; alterations in their blood and liver levels were confirmed by real-time qPCR. The expression of the genes associated in the network of these miRNAs, Bcl2, Ppara, E2f1, E2f2, Akt, Ccnd1, and Smad2/3, also was altered in the liver of aged mice. Following transfection of these miRNAs into 18-month-old mice, levels of miR-21a-5p, miR-103-3p, and miR-30c-5p increased, and their related genes exhibited a reversed expression in the liver. Expression of Mre11a, p16INK4a, and Mtor, reported to be aging-associated molecules, also was reversed in the livers of miRNA-transfected mice. These miRNAs could be non-invasive biomarkers for aging, and they might induce a reverse regulation of aging-associated pathways. This study provides preliminary data on reverse aging, which could be applied further for treatments of adult diseases.
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Affiliation(s)
- Jung-Hee Kim
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Bo-Ram Lee
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Eun-Sook Choi
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Kyeong-Min Lee
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Seong-Kyoon Choi
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Jung Hoon Cho
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
| | - Won Bae Jeon
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Eunjoo Kim
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea.
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85
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Tang J, Dong Q. Knockdown of TREM-1 suppresses IL-1β-induced chondrocyte injury via inhibiting the NF-κB pathway. Biochem Biophys Res Commun 2016; 482:1240-1245. [PMID: 27932245 DOI: 10.1016/j.bbrc.2016.12.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 12/03/2016] [Indexed: 12/31/2022]
Abstract
Triggering receptor expressed on myeloid cells 1 (TREM-1) is a recently discovered molecule that modulates inflammatory responses. This study aimed to investigate the specific function of TREM-1 in chondrocytes and its association with the pathophysiology of osteoarthritis (OA). We observed upregulation of TREM-1 in OA cartilage compared to normal tissues. Knockdown of TREM-1 suppressed interleukin 1 beta (IL-1β)-induced extracellular matrix (ECM) metabolic imbalance, pro-inflammatory cytokine production, decrease in cell viability and apoptosis. Mechanistic analyses further revealed that IL-1β-induced activation of the NF-κB pathway is suppressed upon TREM-1 knockdown, similar to the effect of pyrrolidine dithiocarbamate (PDTC), an inhibitor of NF-κB. TREM-1 expression was consistently increased in a mouse OA model in vivo, and its silencing led to inhibition of matrix metallopeptidase-13 (MMP-13) production, increased collagen type II synthesis and decreased NF-κB signaling. Our data collectively suggest that TREM-1 plays a critical in OA development through regulation of NF-κB signaling. Pharmacological inhibition of TREM-1 may therefore present an effective novel therapeutic approach for OA.
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Affiliation(s)
- Jianfei Tang
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu, China; Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Qirong Dong
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu, China.
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86
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Li C, Zhao M, Zhang C, Zhang W, Zhao X, Duan X, Xu W. miR210 modulates respiratory burst in Apostichopus japonicus coelomocytes via targeting Toll-like receptor. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 65:377-381. [PMID: 27545641 DOI: 10.1016/j.dci.2016.08.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 08/16/2016] [Accepted: 08/17/2016] [Indexed: 06/06/2023]
Abstract
Immune responses of species in Echinodermata remains mysterious due to the lack of efforts made in the study of host defense mechanism in these species. More researches start focusing on this ancient immune system with the recognition the economic values of several species in this phylum, especially sea cucumbers. Here, we reported a study in the innate immunity of a sea cucumber species (Apostichopus japonicus) in response to infection of Vibrio splendidus. A novel differential expressed miRNA (miR-210) from the diseased sea cucumber coelomocytes was identified in our study. This miRNA molecule modulates Toll-like receptor gene (AjToll) expression via binding 3'UTR region from 906 nt to 930 nt. Upon the challenge of V. splendidus, coelomocytes in A. japonicas demonstrated a upregulation of AjToll but a downregulation of miR-210. Transfection of miR-210 agomirs in coelomocytes significantly depressed the expression of AjToll in cells. As a result of AjToll expression inhibition by miR-210, the AjToll downstream molecules involved in reactive oxygen species (ROS) were also altered in vivo. This ROS pathway alternation was consistent with that caused by knockdown of AjToll through small inference RNA (siRNA). Taken together, the results of this study demonstrated a novel immune regulatory pathway via miRN-210 in A. japonica, which provides basic knowledge in exploring innate immunity of Echinodermata, and also can be reference in disease control in sea cucumber culture industry.
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Affiliation(s)
- Chenghua Li
- School of Marine Sciences, Ningbo University, PR China; Louisiana State University, Agricultural Center, United States.
| | - Mengru Zhao
- School of Marine Sciences, Ningbo University, PR China
| | - Chi Zhang
- School of Marine Sciences, Ningbo University, PR China
| | - Weiwei Zhang
- School of Marine Sciences, Ningbo University, PR China
| | - Xuelin Zhao
- School of Marine Sciences, Ningbo University, PR China
| | - Xuemei Duan
- School of Marine Sciences, Ningbo University, PR China
| | - Wei Xu
- Louisiana State University, Agricultural Center, United States.
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87
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Ho J, Chan H, Wong SH, Wang MHT, Yu J, Xiao Z, Liu X, Choi G, Leung CCH, Wong WT, Li Z, Gin T, Chan MTV, Wu WKK. The involvement of regulatory non-coding RNAs in sepsis: a systematic review. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2016; 20:383. [PMID: 27890015 PMCID: PMC5125038 DOI: 10.1186/s13054-016-1555-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 10/31/2016] [Indexed: 12/13/2022]
Abstract
Background Sepsis coincides with altered gene expression in different tissues. Accumulating evidence has suggested that microRNAs, long non-coding RNAs, and circular RNAs are important molecules involved in the crosstalk with various pathways pertinent to innate immunity, mitochondrial functions, and apoptosis. Methods We searched articles indexed in PubMed (MEDLINE), EMBASE and Europe PubMed Central databases using the Medical Subject Heading (MeSH) or Title/Abstract words (“microRNA”, “long non-coding RNA”, “circular RNA”, “sepsis” and/or “septic shock”) from inception to Sep 2016. Studies investigating the role of host-derived microRNA, long non-coding RNA, and circular RNA in the pathogenesis of and as biomarkers or therapeutics in sepsis were included. Data were extracted in terms of the role of non-coding RNAs in pathogenesis, and their applicability for use as biomarkers or therapeutics in sepsis. Two independent researchers assessed the quality of studies using a modified guideline from the Systematic Review Center for Laboratory animal Experimentation (SYRCLE), a tool based on the Cochrane Collaboration Risk of Bias tool. Results Observational studies revealed dysregulation of non-coding RNAs in septic patients. Experimental studies confirmed their crosstalk with JNK/NF-κB and other cellular pathways pertinent to innate immunity, mitochondrial function, and apoptosis. Of the included studies, the SYRCLE scores ranged from 3 to 7 (average score of 4.55). This suggests a moderate risk of bias. Of the 10 articles investigating non-coding RNAs as biomarkers, none of them included a validation cohort. Selective reporting of sensitivity, specificity, and receiver operating curve was common. Conclusions Although non-coding RNAs appear to be good candidates as biomarkers and therapeutics for sepsis, their differential expression across tissues complicated the process. Further investigation on organ-specific delivery of these regulatory molecules may be useful. Electronic supplementary material The online version of this article (doi:10.1186/s13054-016-1555-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jeffery Ho
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Hung Chan
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Sunny H Wong
- State Key Laboratory of Digestive Disease, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong, Special Administrative Region of China. .,Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China.
| | - Maggie H T Wang
- The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Jun Yu
- State Key Laboratory of Digestive Disease, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong, Special Administrative Region of China.,Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Zhangang Xiao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Xiaodong Liu
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Gordon Choi
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Czarina C H Leung
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Wai T Wong
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Zheng Li
- Department of Orthopedics Surgery Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Tony Gin
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Matthew T V Chan
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China.
| | - William K K Wu
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China. .,State Key Laboratory of Digestive Disease, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong, Special Administrative Region of China.
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88
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MicroRNAs Regulate Cytokine Responses in Gingival Epithelial Cells. Infect Immun 2016; 84:3282-3289. [PMID: 27600506 DOI: 10.1128/iai.00263-16] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 08/30/2016] [Indexed: 12/28/2022] Open
Abstract
MicroRNAs (miRNAs) have been established as key regulators of various biological processes with possible involvement in the pathobiology of periodontal disease. Expanding our earlier observations of substantial differential expression of specific miRNAs between clinically healthy and periodontitis-affected gingival tissues, we used miRNA inhibitors (sponges) in loss-of-function experiments to investigate the involvement of specific miRNAs in the response of pocket epithelium-derived, telomerase-immortalized human gingival keratinocytes (TIGKs) to microbial infection. We constructed stable knockdown (KD) cell lines for five epithelium-expressed miRNAs (miR-126, miR-141, miR-155, miR-210, and miR-1246) and assessed their response to infection with periodontal pathogens using microarray analysis, quantitative PCR (qPCR), enzyme-linked immunosorbent assay (ELISA), and Western blot assay. miR-126 KD cells showed lower expression of interleukin 8 (IL-8) and CXCL1, both on the mRNA and protein levels, than did controls upon stimulation by heat-killed wild-type Porphyromonas gingivalis, live P. gingivalis protease-deficient mutant KDP128, and live Aggregatibacter actinomycetemcomitans In contrast, infection of miR-155 KD and miR-210 KD cells with the same organisms resulted in higher IL-8 and CXCL1 mRNA and protein expression. These effects appeared to be regulated by NF-κB, as suggested by altered transcription and/or phosphorylation status of components of the NF-κB system. Reduced neutrophil-like HL-60 cell chemotactic activity was observed in response to infection of miR-126 KD cells, indicating that miR-126 plays an important role in immune responses. Our findings indicate that specific miRNAs regulate the expression of inflammatory cytokines in human gingival epithelial cells in response to microbial infection.
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89
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Cao Y, Wu TD, Wu H, Lang Y, Li DZ, Ni SF, Lu HB, Hu JZ. Synchrotron radiation micro-CT as a novel tool to evaluate the effect of agomir-210 in a rat spinal cord injury model. Brain Res 2016; 1655:55-65. [PMID: 27847197 DOI: 10.1016/j.brainres.2016.11.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 11/10/2016] [Accepted: 11/11/2016] [Indexed: 01/15/2023]
Abstract
MicroRNA-210 (miR-210) was initially reported to be associated with hypoxia and plays a vital role in modulating angiogenesis. However, the potential effect and underlying mechanisms of miR-210 activity in rat spinal cord injury (SCI) have not yet been fully illuminated. In the present study, differential microRNA expression after SCI was determined by Microarray analysis. To explore the effect of miR-210 after SCI, we intrathecally injected agomir-210 with Alzet Osmotic Pumps to up-regulated the endogenous miR-210 expression. Then, synchrotron radiation micro-CT (SRμCT) imaging was used to investigate the effect of agomir-210 in rat SCI model. We found that the endogenous miR-210 expression could be up-regulated by intrathecal agomir-210 injection. The administration of agomir-210 significantly promoted angiogenesis, as evidenced by increased vessel number and volume detected by SRμCT, attenuated the lesion size and improved functional recovery after SCI. Additionally, agomir-210 attenuated cellular apoptosis and inflammation in the injured rat spinal cord. Expression levels of pro-apoptotic protein (Bax) and pro-inflammatory cytokines (TNF-α and IL-1β) were significantly decreased after agomir-210 treatment, whereas expression levels of anti-apoptotic (Bcl-2) and anti-inflammatory (IL-10) proteins were up-regulated. In conclusion, our results indicated that SRμCT is a powerful imaging tool to evaluate the effects of angiogenesis after agomir-210 administration in rat SCI model. The up-regulation of endogenous miR-210 expression following agomir-210 administration promoted angiogenesis and anti-apoptotic protein expression, and attenuated inflammation. MiR-210 played a positive role in neurological functional recovery and could be a potential new therapeutic target for SCI.
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Affiliation(s)
- Yong Cao
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, PR China
| | - Tian-Ding Wu
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, PR China
| | - Hao Wu
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, PR China
| | - Ye Lang
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, PR China
| | - Dong-Zhe Li
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, PR China
| | - Shuang-Fei Ni
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, PR China
| | - Hong-Bin Lu
- Department of Sports Medicine, Research Center of Sports Medicine, Xiangya Hospital, Central South University, Changsha 410008, PR China.
| | - Jian-Zhong Hu
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, PR China.
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90
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Ren CX, Leng RX, Fan YG, Pan HF, Wu CH, Ye DQ. MicroRNA-210 and its theranostic potential. Expert Opin Ther Targets 2016; 20:1325-1338. [PMID: 27359286 DOI: 10.1080/14728222.2016.1206890] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
INTRODUCTION MicroRNAs (miRNAs) are a set of small single-stranded noncoding RNAs with diverse biological functions. As a prototypical hypoxamir, human microRNA-210 (hsa-miR-210) is one of the most widely studied miRNAs thus far. In addition to its involvement in sophisticated regulation of numerous biological processes, miR-210 has also been shown to be associated with the development of different human diseases including various types of cancers, cardiovascular and cerebrovascular diseases, and immunological diseases. Given its multi-faceted functions, miR-210 may serve as a novel and promising theranostic target for prevention and treatment of diseases. Areas covered: This review aims to provide a comprehensive overview of miR-210, the regulation of its expression, biological functions and molecular mechanisms, with particular emphasis on its diagnostic and therapeutic potential. Expert opinion: Although the exact roles of miR-210 in various diseases have not been fully clarified, targeting miR-210 may be a promising therapeutic strategy. Further investigations are also needed to facilitate therapeutic-clinical applications of miR-210 in human diseases.
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Affiliation(s)
- Chun-Xia Ren
- a Department of Epidemiology and Biostatistics , School of Public Health, Anhui Medical University , Hefei , Anhui , China.,b Anhui Provincial Laboratory of Population Health & Major Disease Screening and Diagnosis , Anhui Medical University , Hefei , Anhui , China.,c The First Affiliated Hospital of Anhui Medical University , Hefei , Anhui , China
| | - Rui-Xue Leng
- a Department of Epidemiology and Biostatistics , School of Public Health, Anhui Medical University , Hefei , Anhui , China.,b Anhui Provincial Laboratory of Population Health & Major Disease Screening and Diagnosis , Anhui Medical University , Hefei , Anhui , China
| | - Yin-Guang Fan
- a Department of Epidemiology and Biostatistics , School of Public Health, Anhui Medical University , Hefei , Anhui , China.,b Anhui Provincial Laboratory of Population Health & Major Disease Screening and Diagnosis , Anhui Medical University , Hefei , Anhui , China
| | - Hai-Feng Pan
- a Department of Epidemiology and Biostatistics , School of Public Health, Anhui Medical University , Hefei , Anhui , China.,b Anhui Provincial Laboratory of Population Health & Major Disease Screening and Diagnosis , Anhui Medical University , Hefei , Anhui , China
| | - Chang-Hao Wu
- d Faculty of Health and Medical Sciences , University of Surrey , Guildford , UK
| | - Dong-Qing Ye
- a Department of Epidemiology and Biostatistics , School of Public Health, Anhui Medical University , Hefei , Anhui , China.,b Anhui Provincial Laboratory of Population Health & Major Disease Screening and Diagnosis , Anhui Medical University , Hefei , Anhui , China
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91
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Singh J, Mukhopadhyay CS, Kaur S, Malhotra P, Sethi RS, Choudhary RK. Identification of the MicroRNA Repertoire in TLR-Ligand Challenged Bubaline PBMCs as a Model of Bacterial and Viral Infection. PLoS One 2016; 11:e0156598. [PMID: 27257788 PMCID: PMC4892552 DOI: 10.1371/journal.pone.0156598] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 05/17/2016] [Indexed: 01/06/2023] Open
Abstract
In the present study, we used high-throughput sequencing, miRNA-seq, to discover and explore the expression profiles of known and novel miRNAs in TLR ligand-stimulated vis-à-vis non-stimulated (i.e. Control) peripheral blood mononuclear cells (PBMCs) isolated from blood of healthy Murrah buffaloes. Six small RNA (sRNA) libraries were multiplexed in Ion Torrent PI chip and sequenced on Ion Proton System. The reads obtained were aligned to the Bos taurus genome (UMD3.1 assembly), which is phylogenetically closest species to buffalo (Bubalus bubalis). A total of 160 bovine miRNAs were biocomputationally identified in buffalo PBMCs and 130 putatively novel miRNAs (not enlisted in the bovine mirBase) were identified. All of these 290 miRNAs identified across the six treatment and control samples represent the repertoire of novel miRNAs for the buffalo species. The expression profiles of these miRNAs across the samples have been represented by sample dendrogram and heatmap plots. The uniquely expressed miRNAs in each treatment and control groups were identified. A few miRNAs were expressed at very high levels while the majority of them were moderately expressed. The miRNAs bta-miR-103 and -191 were found to be highly abundant and expressed in all the samples. Other abundantly expressed miRNAs include bta-miR-19b, -29b, -15a, -19a, -30d, -30b-5p and members of let family (let 7a-5p, let 7g & let 7f) in LPS and CpG treated PBMCS and bta-miR-191, -103 & -19b in Poly I:C stimulated PBMCs. Only one novel miRNA (bta-miR-11039) out of 130 identified putatively novel miRNAs, was expressed in all the six samples and differentially expressed (>2- fold) miRNAs were identified. Six of the differentially expressed miRNAs across the groups (bta-miR-421, bta-let-7i, bta-miR-138, bta-miR-21-5p, bta-miR-222 and bta-miR-27b) were subsequently confirmed by TaqMan quantitative reverse transcription polymerase chain reaction (qRT-PCR). Furthermore, the target genes of differentially expressed miRNAs were enriched for the roles in innate immunity and TLR signaling pathways. This maiden study on profiling and cataloguing of bubaline miRNAs expressed in TLR-ligand stimulated PBMCs will provide an important reference point for future studies on regulatory roles of miRNAs in immune system of buffaloes.
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Affiliation(s)
- Jasdeep Singh
- School of Animal Biotechnology, Post Graduate Institute of Veterinary Education and Research, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - C. S. Mukhopadhyay
- School of Animal Biotechnology, Post Graduate Institute of Veterinary Education and Research, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
- * E-mail:
| | - Simarjeet Kaur
- Department of Animal Genetics and Breeding, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Puneet Malhotra
- Department of Animal Genetics and Breeding, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - R. S. Sethi
- School of Animal Biotechnology, Post Graduate Institute of Veterinary Education and Research, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - R. K. Choudhary
- School of Animal Biotechnology, Post Graduate Institute of Veterinary Education and Research, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
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92
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Wang X, Zhu Y, Xu B, Wang J, Liu X. Identification of TLR2 and TLR4‑induced microRNAs in human mesenchymal stem cells and their possible roles in regulating TLR signals. Mol Med Rep 2016; 13:4969-80. [PMID: 27121537 PMCID: PMC4878556 DOI: 10.3892/mmr.2016.5197] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 01/14/2016] [Indexed: 02/06/2023] Open
Abstract
Toll-like receptors (TLRs) are expressed in human bone marrow-derived mesenchymal stromal cells (BM-MSCs), and the activation of TLRs is important in proliferation, differentiation, migration and hematopoiesis-supporting functions of BM-MSCs. However, the molecular mechanisms underlying these processes remain to be elucidated. MicroRNAs (miRNAs) are involved in various biological functions by mediating mRNA degradation or inhibiting translation of target genes. The present study aimed to identify whether TLRs regulate the expression of miRNAs in BM-MSCs and elucidate the regulatory roles of miRNAs. Illumina high-throughput sequencing was used to profile miRNAs expressed in BM-MSCs stimulated with TLR2 agonist, PAM3CSK4 (PM) or TLR4 agonist, lipopolysaccharides (LPS). A marked expression change upon PM or LPS treatment was observed for 164 known miRNAs and six novel miRNAs that were identified. The expression of six novel miRNAs and 40 randomly selected known miRNAs was further validated by reverse transcription-quantitative polymerase chain reaction. In addition, bioinformatic methods were used to predict the potential target genes of the abundant known miRNAs. The gene ontology analysis demonstrated that predicted targets were enriched in the regulation of signal transduction, cellular processes and macromolecule metabolic processes. Kyoto Encyclopedia of Genes and Genomes pathway analysis suggested that these potential targets were involved in numerous important pathways, predominantly including mitogen-activated protein kinase, phosphati-dylinositol-4,5-bisphosphate 3-kinase-Akt, neurotrophin and cancer-associated signaling pathways. The present study aimed to identify the global expression change of miRNAs in BM-MSCs stimulated with LPS and PM, providing the opportunity to further elucidate the roles of miRNAs in mediating TLR signals to regulate the functions of BM-MSCs.
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Affiliation(s)
- Xingbing Wang
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Yunxia Zhu
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Bo Xu
- Reproductive Medicine Center, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Jing Wang
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Xin Liu
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui 230001, P.R. China
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93
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Bakirtzi K, Law IKM, Xue X, Iliopoulos D, Shah YM, Pothoulakis C. Neurotensin Promotes the Development of Colitis and Intestinal Angiogenesis via Hif-1α-miR-210 Signaling. THE JOURNAL OF IMMUNOLOGY 2016; 196:4311-21. [PMID: 27076683 DOI: 10.4049/jimmunol.1501443] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 03/04/2016] [Indexed: 12/15/2022]
Abstract
Neurotensin (NT) via its receptor 1 (NTR1) modulates the development of colitis, decreases HIF-1α/PHD2 interaction, stabilizes and increases HIF-1α transcriptional activity, and promotes intestinal angiogenesis. HIF-1α induces miR-210 expression, whereas miR-210 is strongly upregulated in response to NT in NCM460 human colonic epithelial cells overexpressing NTR1 (NCM460-NTR1). In this study, we examined whether NT activates a NTR1-HIF-1α-miR-210 cascade using in vitro (NCM460-NTR1 cells) and in vivo (transgenic mice overexpressing [HIF-1α-OE] or lacking HIF-1α [HIF-1α-knockout (KO)] in intestinal epithelial cells and mice lacking NTR1 [NTR1-KO]) models. Pretreatment of NCM460-NTR1 cells with the HIF-1α inhibitor PX-478 or silencing of HIF-1α (small interfering HIF-1α) attenuated miR-210 expression in response to NT. Intracolonic 2,4,6-trinitrobenzenesulfonic acid (TNBS) administration (2-d model) increased colonic miR-210 expression that was significantly reduced in NTR1-KO, HIF-1α-KO mice, and wild-type mice pretreated intracolonically with locked nucleic acid anti-miR-210. In contrast, HIF-1α-OE mice showed increased miR-210 expression at baseline that was further increased following TNBS administration. HIF-1α-OE mice had also exacerbated TNBS-induced neovascularization compared with TNBS-exposed wild-type mice. TNBS-induced neovascularization was attenuated in HIF-1α-KO mice, or mice pretreated intracolonically with anti-miR-210. Intracolonic anti-miR-210 also reduced colitis in response to TNBS (2 d). Importantly, miR-210 expression was increased in tissue samples from ulcerative colitis patients. We conclude that NT exerts its proinflammatory and proangiogenic effects during acute colitis via a NTR1-prolyl hydroxylase 2/HIF-1α-miR-210 signaling pathway. Our results also demonstrate that miR-210 plays a proinflammatory role in the development of colitis.
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Affiliation(s)
- Kyriaki Bakirtzi
- Inflammatory Bowel Disease Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Ivy Ka Man Law
- Inflammatory Bowel Disease Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Xiang Xue
- Division of Gastroenterology, Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109
| | - Dimitrios Iliopoulos
- Division of Digestive Diseases, Center for Systems Biomedicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095; and
| | - Yatrik M Shah
- Division of Gastroenterology, Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109; Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109
| | - Charalabos Pothoulakis
- Inflammatory Bowel Disease Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095;
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Gysler SM, Mulla MJ, Guerra M, Brosens JJ, Salmon JE, Chamley LW, Abrahams VM. Antiphospholipid antibody-induced miR-146a-3p drives trophoblast interleukin-8 secretion through activation of Toll-like receptor 8. Mol Hum Reprod 2016; 22:465-74. [PMID: 27029214 DOI: 10.1093/molehr/gaw027] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 03/23/2016] [Indexed: 12/17/2022] Open
Abstract
STUDY QUESTION What is the role of microRNAs (miRs) in antiphospholipid antibody (aPL)-induced trophoblast inflammation? SUMMARY ANSWER aPL-induced up-regulation of trophoblast miR-146a-3p is mediated by Toll-like receptor 4 (TLR4), and miR-146a-3p in turn drives the cells to secrete interleukin (IL)-8 by activating the RNA sensor, TLR8. WHAT IS KNOWN ALREADY Obstetric antiphospholipid syndrome (APS) is an autoimmune disorder characterized by circulating aPL and an increased risk of pregnancy complications. We previously showed that aPL recognizing beta2 glycoprotein I (β2GPI) elicit human first trimester trophoblast secretion of IL-8 by activating TLR4. Since some miRs control TLR responses, their regulation in trophoblast cells by aPL and functional role in the aPL-mediated inflammatory response was investigated. miRs can be released from cells via exosomes, and therefore, miR exosome expression was also examined. A panel of miRs was selected based on their involvement with TLR signaling: miR-9; miR-146a-5p and its isomiR, miR-146a-3p; miR-155, miR-210; and Let-7c. Since certain miRs can activate the RNA sensor, TLR8, this was also investigated. STUDY DESIGN, SIZE, DURATION For in vitro studies, the human first trimester extravillous trophoblast cell line, HTR8 was studied. HTR8 cells transfected to express a TLR8 dominant negative (DN) were also used. Plasma was evaluated from pregnant women who have aPL, either with or without systemic lupus erythematous (SLE) (n = 39); SLE patients without aPL (n = 30); and healthy pregnant controls (n = 20). PARTICIPANTS/MATERIALS, SETTING, METHODS Trophoblast HTR8 wildtype and TLR8-DN cells were incubated with or without aPL (mouse anti-human β2GPI mAb) for 48-72 h. HTR8 cells were also treated with or without aPL in the presence and the absence of a TLR4 antagonist (lipopolysaccharide from Rhodobacter sphaeroides; LPS-RS), specific miR inhibitors or specific miR mimics. miR expression levels in trophoblast cells, trophoblast-derived exosomes and exosomes isolated from patient plasma were measured by qPCR. Trophoblast IL-8 secretion was measured by ELISA. MAIN RESULTS AND THE ROLE OF CHANCE aPL significantly increased trophoblast cellular and exosome expression of miR-146a-5p, miR-146a-3p, miR-155 and miR-210. aPL-induced up-regulation of trophoblast miR-146a-5p, miR-146a-3p and miR-210, but not miR-155, was inhibited by the TLR4 antagonist, LPS-RS. While inhibition or overexpression of miR-146a-5p had no effect on aPL-induced trophoblast IL-8 secretion, miR-146a-3p inhibition significantly reduced this response. aPL-induced trophoblast IL-8 secretion was inhibited by the presence of the TLR8-DN. In the absence of aPL, transfection of trophoblast cells with a miR-146a-3p mimic significantly increased IL-8 secretion and this was inhibited by the presence of the TLR8-DN. Patients with aPL and adverse pregnancy outcomes (APOs) expressed significantly higher levels of circulating miR-146a-3p compared with healthy pregnant controls with no pregnancy complications (P < 0.05). LIMITATIONS, REASONS FOR CAUTION While the enrichment of miR-146a-3p in trophoblast-derived exosomes support the role of this miR acting in a paracrine or endocrine manner through exosome delivery, this has not been demonstrated. However, miR-146a-3p may also exert its pro-inflammatory effect intracellularly within the same trophoblast cell targeted by aPL. WIDER IMPLICATIONS OF THE FINDINGS These findings provide a novel mechanism of trophoblast inflammation through miRs activating RNA-sensing receptors. Furthermore, circulating exosomal-associated miR-146a-3p in APS patients may serve clinically as a biomarker for related APOs. STUDY FUNDING/COMPETING INTERESTS This study was supported in part by grants from the American Heart Association (#10GRNT3640032 to V.M.A.), the March of Dimes Foundation (Gene Discovery and Translational Research Grant #6-FY12-255 to V.M.A.), NICHD, NIH (R01HD049446 to V.M.A.), the Gina M. Finzi Memorial Student Summer Fellowship from the Lupus Foundation of America (to S.M.G.), and the Yale University School of Medicine Medical Student Fellowship (to S.M.G.). The authors declare no competing financial interests. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Stefan M Gysler
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, CT 06520, USA
| | - Melissa J Mulla
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, CT 06520, USA
| | - Marta Guerra
- Department of Medicine and Program in Inflammation and Autoimmunity, Hospital for Special Surgery and Weill Cornell Medical College, New York, NY 10065, USA
| | - Jan J Brosens
- Division of Reproductive Health, Clinical Sciences Research Laboratories, Warwick Medical School, Coventry CV4 7AL, UK
| | - Jane E Salmon
- Department of Medicine and Program in Inflammation and Autoimmunity, Hospital for Special Surgery and Weill Cornell Medical College, New York, NY 10065, USA
| | - Lawrence W Chamley
- Department of Obstetrics and Gynecology, The University of Auckland, Auckland 1142, New Zealand
| | - Vikki M Abrahams
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, CT 06520, USA
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95
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Qi J, Li T, Bian H, Li F, Ju Y, Gao S, Su J, Ren W, Qin C. SNAI1 promotes the development of HCC through the enhancement of proliferation and inhibition of apoptosis. FEBS Open Bio 2016; 6:326-37. [PMID: 27239445 PMCID: PMC4821356 DOI: 10.1002/2211-5463.12043] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 02/02/2016] [Accepted: 02/04/2016] [Indexed: 01/08/2023] Open
Abstract
SNAI1, a zinc‐finger transcription factor, plays an important role in the induction of epithelial–mesenchymal transition (EMT) in various cancers. However, the possible functions of SNAI1 in the proliferation and apoptosis of hepatocellular carcinoma have not been clearly identified. In this study, we investigated the effects and mechanisms of SNAI1 in the proliferation and apoptosis of hepatocellular carcinoma using clinical samples and cell lines. We found that SNAI1 is highly expressed in the tissues of liver cancer compared with adjacent nontumor tissues. SNAI1 is also highly expressed in the hepatoma cell lines HepG2, SMMC‐7721, and BEL‐7402 compared with the human normal liver cell line L02. We also observed that SNAI1 expression was correlated with distal metastasis, incomplete tumor capsule formation, and histological differentiation in hepatocellular carcinoma (HCC). Moreover, we demonstrated that knockdown of SNAI1 via lentiviral vectors of RNAi against SNAI inhibited cell proliferation by inducing G1 arrest, which was accompanied by the downregulation of cyclin D1 but not that of cyclin A. In addition, knockdown of SNAI1 promoted apoptosis by decreasing the expression of Bcl‐2. In conclusion, our findings revealed that SNAI1 is involved in the development of hepatocellular carcinoma via regulating the growth and apoptosis of tumor cells.
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Affiliation(s)
- Jianni Qi
- Central Laboratory Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong China
| | - Tao Li
- Department of Gastroenterology Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong China
| | - Hongjun Bian
- Department of Emergency Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong China
| | - Feifei Li
- Department of Gastroenterology Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong China
| | - Ying Ju
- Department of Clinical Laboratory Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong China
| | - Shanshan Gao
- Department of Gastroenterology Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong China
| | - Jingran Su
- Department of Gastroenterology Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong China
| | - Wanhua Ren
- Department of Gastroenterology Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong China
| | - Chengyong Qin
- Department of Gastroenterology Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong China
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96
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Melton DW, Lei X, Gelfond JAL, Shireman PK. Dynamic macrophage polarization-specific miRNA patterns reveal increased soluble VEGF receptor 1 by miR-125a-5p inhibition. Physiol Genomics 2016; 48:345-60. [PMID: 26884460 DOI: 10.1152/physiolgenomics.00098.2015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 02/10/2016] [Indexed: 01/04/2023] Open
Abstract
Dynamic, epigenetic mechanisms can regulate macrophage phenotypes following exposure to different stimulating conditions and environments. However, temporal patterns of microRNAs (miRNAs or miRs) across multiple macrophage polarization phenotypes have not been defined. We determined miRNA expression in bone marrow-derived murine macrophages over multiple time points (0.5, 1, 3, 24 h) following exposure to cytokines and/or LPS. We hypothesized that dynamic changes in miRNAs regulate macrophage phenotypes. Changes in macrophage polarization markers were detected as early as 0.5 and as late as 24 h; however, robust responses for most markers occurred within 3 h. In parallel, many polarization-specific miRNAs were also changed by 3 h and expressed divergent patterns between M1 and M2a conditions, with increased expression in M1 (miR-155, 199a-3p, 214-3p, 455-3p, and 125a) or M2a (miR-511 and 449a). Specifically, miR-125a-5p exhibited divergent patterns: increased at 12-24 h in M1 macrophages and decreasing trend in M2a. VEGF in the culture media of macrophages was dependent upon the polarization state, with greatly diminished VEGF in M2a compared with M1 macrophage culture media despite similar VEGF in cell lysates. Inhibition of miR-125a-5p in media-only controls (MO) and M1 macrophages greatly increased expression and secretion of soluble VEGF receptor-1 (sVEGFR1) leading to diminished VEGF in the culture media, partially converting MO and M1 into an M2a phenotype. Thus, the divergent expression patterns of polarization-specific miRNAs led to the identification and demonstrated the regulation of a specific macrophage polarization phenotype, sVEGFR1 by inhibition of miR-125a-5p.
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Affiliation(s)
- David W Melton
- Department of Surgery, University of Texas Health Science Center, San Antonio, Texas; Sam and Ann Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center, San Antonio, Texas; and South Texas Veterans Health Care System, San Antonio, Texas
| | - XiuFen Lei
- Department of Surgery, University of Texas Health Science Center, San Antonio, Texas; South Texas Veterans Health Care System, San Antonio, Texas
| | - Jonathan A L Gelfond
- Department of Epidemiology and Biostatistics, University of Texas Health Science Center, San Antonio, Texas; Sam and Ann Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center, San Antonio, Texas; and
| | - Paula K Shireman
- Department of Surgery, University of Texas Health Science Center, San Antonio, Texas; Sam and Ann Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center, San Antonio, Texas; and South Texas Veterans Health Care System, San Antonio, Texas
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97
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Rupaimoole R, Calin GA, Lopez-Berestein G, Sood AK. miRNA Deregulation in Cancer Cells and the Tumor Microenvironment. Cancer Discov 2016; 6:235-46. [PMID: 26865249 DOI: 10.1158/2159-8290.cd-15-0893] [Citation(s) in RCA: 489] [Impact Index Per Article: 61.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 10/19/2015] [Indexed: 12/19/2022]
Abstract
UNLABELLED miRNAs are a key component of the noncoding RNA family. The underlying mechanisms involved in the interplay between the tumor microenvironment and cancer cells involve highly dynamic factors such as hypoxia and cell types such as cancer-associated fibroblasts and macrophages. Although miRNA levels are known to be altered in cancer cells, recent evidence suggests a critical role for the tumor microenvironment in regulating miRNA biogenesis, methylation, and transcriptional changes. Here, we discuss the complex protumorigenic symbiotic role between tumor cells, the tumor microenvironment, and miRNA deregulation. SIGNIFICANCE miRNAs play a central role in cell signaling and homeostasis. In this article, we provide insights into the regulatory mechanisms involved in the deregulation of miRNAs in cancer cells and the tumor microenvironment and discuss therapeutic intervention strategies to overcome this deregulation.
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Affiliation(s)
- Rajesha Rupaimoole
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas. Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - George A Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas. Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Gabriel Lopez-Berestein
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas. Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Anil K Sood
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas. Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, Texas. Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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98
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Ai F, Zhang X, Li X, Qin Z, Ye Q, Tian L, Tang A, Li N, Li G, Ma J, Shen S. Up-regulation of matrix metalloproteinases in a mouse model of chemically induced colitis-associated cancer: the role of microRNAs. Oncotarget 2016; 6:5412-25. [PMID: 25742789 PMCID: PMC4467157 DOI: 10.18632/oncotarget.3027] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 01/01/2015] [Indexed: 01/08/2023] Open
Abstract
Emerging evidence has implicated microRNAs in regulating the production of multiple inflammatory mediators including cytokines and chemokines. We previously elucidated the dynamic activation of key signals that link colitis to colorectal cancer. In this study, we observed a sharp increase in the levels of matrix metalloproteinases (Mmps) that provided a basis for the inflammation-cancer link, and we questioned whether this was a consequence of the dysregulation of Mmp-specific microRNAs, at least partly. We assayed a panel of murine microRNAs that were predicted to target Mmps and found they were downregulated in the inflammation-cancer link. Furthermore, we demonstrated that three murine microRNAs, namely miR-128, -134, and -330, can target the three Mmps Mmp3, Mmp10, and Mmp13, respectively. We also found that the level of the microRNA-processing enzyme Dicer1 was decreased in the inflammation-cancer link. These microRNAs functioned as tumor suppressors in colon cancer cells, attenuating the proliferation, migration, and invasion potential of murine colon cancer cells as well as angiogenesis and the growth of tumors derived from these cells. Our results suggest that microRNAs modulate the production of key inflammatory mediators and that microRNA dysfunction may contribute to the non-resolving inflammation associated with cancer.
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Affiliation(s)
- Feiyan Ai
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Xuemei Zhang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Xiayu Li
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Zailong Qin
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis, Ministry of Health, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, China
| | - Qiurong Ye
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis, Ministry of Health, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, China
| | - Li Tian
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Anliu Tang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Nan Li
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Guiyuan Li
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China.,Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis, Ministry of Health, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, China
| | - Jian Ma
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China.,Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis, Ministry of Health, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, China
| | - Shourong Shen
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
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Liu H, Hao W, Wang X, Su H. miR-23b targets Smad 3 and ameliorates the LPS-inhibited osteogenic differentiation in preosteoblast MC3T3-E1 cells. J Toxicol Sci 2016; 41:185-93. [PMID: 26961602 DOI: 10.2131/jts.41.185] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Hongzhi Liu
- Department of Orthopedic Trauma, Yantai Yuhuangding Hospital of Qingdao University, China
| | - Wei Hao
- Department of Orthopedic Trauma, Yantai Yuhuangding Hospital of Qingdao University, China
| | - Xin Wang
- Department of Orthopedic Trauma, Yantai Yuhuangding Hospital of Qingdao University, China
| | - Hao Su
- Department of Orthopedic Trauma, Yantai Yuhuangding Hospital of Qingdao University, China
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Guo L, Zhang Y, Zhang L, Huang F, Li J, Wang S. MicroRNAs, TGF-β signaling, and the inflammatory microenvironment in cancer. Tumour Biol 2016; 37:115-25. [PMID: 26563372 PMCID: PMC4841843 DOI: 10.1007/s13277-015-4374-2] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/03/2015] [Indexed: 12/19/2022] Open
Abstract
Inflammatory cells and mediators form a major part of the tumor microenvironment and play important roles in the regulation of cancer initiation, tumor cell proliferation, and metastasis. MicroRNAs (miRNAs) play important roles in several physiological and pathological processes, including the regulation of the inflammatory microenvironment in cancer. Transforming growth factor-β (TGF-β) is an inflammation-related cytokine that functions in both tumor suppression and promotion; however, its underlying molecular mechanisms remain unclear. Recent evidence indicates an association between miRNAs and TGF-β signaling, providing new insight into the nature of the inflammatory microenvironment in cancer. The present review is an overview of the interaction between miRNAs and inflammatory cytokines, with emphasis on the cross talk between TGF-β signaling and miRNAs and their influence on cancer cell behavior. The emerging roles of miRNAs in cancer-related inflammation and the potential to target miRNA signaling pathways for cancer therapy are also discussed.
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Affiliation(s)
- Lingling Guo
- Department of Pathology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou, 215123, China
| | - Yongsheng Zhang
- Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Lifeng Zhang
- Department of Surgery, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Fengbo Huang
- Department of Pathology, The Second Affiliated Hospital of Zhejiang University, Hangzhou, 310009, China
| | - Jinfan Li
- Department of Pathology, The Second Affiliated Hospital of Zhejiang University, Hangzhou, 310009, China
| | - Shouli Wang
- Department of Pathology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou, 215123, China.
- Institute of Radiology and Oncology, Soochow University, Suzhou, 215006, China.
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