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Liu JP, Song SH, Shi PM, Qin XY, Zheng BN, Liu SQ, Ding CH, Zhang X, Xie WF, Shi YH, Xu WP. miR-541 is associated with the prognosis of liver cirrhosis and directly targets JAG2 to inhibit the activation of hepatic stellate cells. BMC Gastroenterol 2024; 24:84. [PMID: 38395762 PMCID: PMC10893617 DOI: 10.1186/s12876-024-03174-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND The activation of hepatic stellate cells (HSCs) has been emphasized as a leading event of the pathogenesis of liver cirrhosis, while the exact mechanism of its activation is largely unknown. Furthermore, the novel non-invasive predictors of prognosis in cirrhotic patients warrant more exploration. miR-541 has been identified as a tumor suppressor in hepatocellular carcinoma and a regulator of fibrotic disease, such as lung fibrosis and renal fibrosis. However, its role in liver cirrhosis has not been reported. METHODS Real-time PCR was used to detect miR-541 expression in the liver tissues and sera of liver cirrhosis patients and in the human LX-2. Gain- and loss-of-function assays were performed to evaluate the effects of miR-541 on the activation of LX-2. Bioinformatics analysis and a luciferase reporter assay were conducted to investigate the target gene of miR-541. RESULTS miR-541 was downregulated in the tissues and sera of patients with liver cirrhosis, which was exacerbated by deteriorating disease severity. Importantly, the lower expression of miR-541 was associated with more episodes of complications including ascites and hepatic encephalopathy, a shorter overall lifespan, and decompensation-free survival. Moreover, multivariate Cox's regression analysis verified lower serum miR-541 as an independent risk factor for liver-related death in cirrhotic patients (HR = 0.394; 95% CI: 0.164-0.947; P = 0.037). miR-541 was also decreased in LX-2 cells activated by TGF-β and the overexpression of miR-541 inhibited the proliferation, activation and hydroxyproline secretion of LX-2 cells. JAG2 is an important ligand of Notch signaling and was identified as a direct target gene of miR-541. The expression of JAG2 was upregulated in the liver tissues of cirrhotic patients and was inversely correlated with miR-541 levels. A rescue assay further confirmed that JAG2 was involved in the function of miR-541 when regulating LX-2 activation and Notch signaling. CONCLUSIONS Dysregulation of miR-541/JAG2 axis might be a as a new mechanism of liver fibrosis, and miR-541 could serve as a novel non-invasive biomarker and therapeutic targets for liver cirrhosis.
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Affiliation(s)
- Jin-Pei Liu
- Department of Gastroenterology, Gongli Hospital of Shanghai Pudong New Area, 219 Miaopu Road, 200135, Shanghai, China
| | - Shao-Hua Song
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 200025, Shanghai, China
| | - Pei-Mei Shi
- Department of Gastroenterology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, 200003, Shanghai, China
| | - Xiao-Yu Qin
- Department of Gastroenterology, Gongli Hospital of Shanghai Pudong New Area, 219 Miaopu Road, 200135, Shanghai, China
| | - Bai-Nan Zheng
- Department of Gastroenterology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, 200003, Shanghai, China
| | - Shu-Qing Liu
- Department of Gastroenterology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, 200003, Shanghai, China
| | - Chen-Hong Ding
- Department of Gastroenterology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, 200003, Shanghai, China
| | - Xin Zhang
- Department of Gastroenterology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, 200003, Shanghai, China
| | - Wei-Fen Xie
- Department of Gastroenterology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, 200003, Shanghai, China.
| | - Yi-Hai Shi
- Department of Gastroenterology, Gongli Hospital of Shanghai Pudong New Area, 219 Miaopu Road, 200135, Shanghai, China.
| | - Wen-Ping Xu
- Department of Gastroenterology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, 200003, Shanghai, China.
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Liao B, Dong S, Xu Z, Gao F, Zhang S, Liang R. MiR-19b-3p regulated by BC002059/ABHD10 axis promotes cell apoptosis in myocardial infarction. Biol Direct 2022; 17:20. [PMID: 35978367 PMCID: PMC9386969 DOI: 10.1186/s13062-022-00333-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 07/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recently, microRNAs (miRNAs), have been extensively investigated in diseases. The upregulated expression of miR-19b-3p has been validated in patients with hypertrophic cardiomyopathy. Nonetheless, it regulatory mechanism in myocardial infarction (MI) is still unclear. PURPOSE This research aimed to investigate the role and molecular regulation mechanism of miR-19b-3p in MI. METHODS QRT-PCR and western blot assays measured RNA and protein expression. Cell apoptosis were tested by flow cytometry and TUNEL assays. Cell viability was measured by trypan blue staining method. RIP and luciferase report assays examined gene interaction. The assays were performed under hypoxia condition. RESULTS MiR-19b-3p was highly expressed in myocardial cell line H9C2, primary cardiomyocytes, and tissues from MI mouse model. MiR-19b-3p inhibition suppressed the apoptosis of cardiomyocytes. BC002059 could up-regulate ABHD10 through sequestering miR-19b-3p. BC002059 upregulation was observed to repress cell apoptosis. Rescue experiments demonstrated that miR-19b-3p overexpression abrogated the suppressive impact of BC002059 on the apoptosis of MI cells, and infarct size, area at risk as well as CK-MB and LDH release of MI mouse model tissues, which was further abolished via ABHD10 increment. CONCLUSION MiR-19b-3p regulated by BC002059/ABHD10 axis promotes cell apoptosis in MI, which might provide a novel perspective for MI alleviation research.
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Affiliation(s)
- Bihong Liao
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China
| | - Shaohong Dong
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China.
| | - Zhenglei Xu
- Department of Gastroenterology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China.
| | - Fei Gao
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China
| | - Suihao Zhang
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China
| | - Ruijuan Liang
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China
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Nakashiki S, Miuma S, Mishima H, Masumoto H, Hidaka M, Soyama A, Kanda Y, Fukushima M, Haraguchi M, Sasaki R, Miyaaki H, Ichikawa T, Takatsuki M, Eguchi S, Yoshiura KI, Nakao K. Bile extracellular vesicles from end-stage liver disease patients show altered microRNA content. Hepatol Int 2021; 15:821-830. [PMID: 34076850 DOI: 10.1007/s12072-021-10196-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/17/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Extracellular vesicles (EVs) have recently attracted attention as novel diagnostic biomarkers and therapeutic tools. Several reports have correlated blood EVs with liver diseases. However, blood EVs do not reflect the liver state as it contains other systemically circulating EVs. Therefore, we focused on bile EVs, which are secreted directly from the liver, for the identification of potential biomarkers of liver failure. METHODS Bile samples were collected from liver transplant recipients (n = 21) diagnosed with end-stage liver disease (ESLD) and donors (normal liver, NL; n = 18) during transplantation. Bile EVs were extracted using ultracentrifugation. RESULTS Nanoparticle tracking analysis showed that bile EV concentration was significantly higher in recipients than in donors. Among recipients, bile EV concentration was remarkably higher in those with hepatocellular carcinoma. Next-generation sequencing revealed 461 and 465 types of microRNAs (miRNAs) in donor and recipient bile EVs, respectively, with no significant difference in diversity between the groups. Among 43 high-expression miRNAs, the expression of 86.0% of the miRNAs was higher in the bile EVs of recipients than in those of donors. Quantitative PCR validation showed that the levels of miR-17, miR-92a, miR-25, miR-423, and miR-451a significantly increased in bile EVs of recipients. Levels of miR-17 were remarkably higher in recipients with alcoholic ESLD. CONCLUSIONS Secretion of EVs into the bile and their miRNA content increase in the ESLD state. Additionally, miRNA levels in bile EVs are not correlated with those in serum EVs. Bile EVs could be promising novel biomarkers for liver diseases.
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Affiliation(s)
- Suguru Nakashiki
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Satoshi Miuma
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Hiroyuki Mishima
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Hiroshi Masumoto
- Biochemical Research Support Center, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Masaaki Hidaka
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8523, Japan
| | - Akihiko Soyama
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8523, Japan
| | - Yasuko Kanda
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masanori Fukushima
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masafumi Haraguchi
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Ryu Sasaki
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Hisamitsu Miyaaki
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Tatsuki Ichikawa
- Department of Gastroenterology Shinti, Nagasaki Harbor Medical Center City Hospital, 6-39, Nagasaki, 850-8555, Japan
| | - Mitsuhisa Takatsuki
- Department of Digestive and General Surgery, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan
| | - Susumu Eguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8523, Japan
| | - Koh-Ichiro Yoshiura
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Kazuhiko Nakao
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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Lou J, Wang P, Chang K, Wang G, Geng X, Wu Y, Zhang W, Niu G. Knocking down LINC01116 can inhibit the regulation of TGF-β through miR-774-5p axis and inhibit the occurrence and development of glioma. Am J Transl Res 2021; 13:5702-5719. [PMID: 34150180 PMCID: PMC8205728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/21/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Many studies have shown that non-coding RNAs (ncRNAs), including long non-coding RNA (LncRNA) and micro RNA (miRNA), play a crucial regulatory role in glioma. LINC01116 is a newly discovered LncRNA, and the relationship between LncRNA and glioma is still under exploration. METHOD LncRNAs with potential differences were screened through GEO database, and the expressions of LINC01116 and miR-744-5p/TGF-β1 in glioma tissues were tested using qRT-PCR. Changes in proliferation and migration/invasion of glioma were tested using CCK-8 and transwell assay. The expression changes of TGF-β1 were tested using qRT-PCR and Western blot. Targeted binding among LINC01116, miR-744-5p and TGF-β1 was verified using double luciferase reporter, RNA Immunoprecipitation (PIR) and RNA pull-down experiments. The effect of LINC01116 on tumor growth was determined by tumor allografting test. RESULTS GEO database and clinical research revealed that the expression level of LINC01116 in glioma increased, and the elevation of LINC01116 was closely related to the adverse prognosis of clinical patients. Functional experiments showed that the inhibition of LINC01116 could up-regulate miR-744-5p-mediated proliferation and metastasis of glioma cells. Western blot analysis and qRT-PCR analysis showed that LINC01116 regulated TGF-β1 by mediating miR-744-5p. Further cell behavior experiments showed that LINC01116 acted as miR-744-5p sponge to inhibit proliferation and metastasis caused by TGF-β1. Finally, the analysis of animal models in vivo showed that LINC01116 could regulate the tumor growth of glioma. CONCLUSION LncRNA LINC01116 acts as an oncogene and promotes TGF-β1 mediated proliferation and metastasis by acting as competitive endogenous RNA (ceRNA) in glioma.
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Affiliation(s)
- Jinfeng Lou
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
- Henan Provincial Engineering Research Center of Natural Drug Extraction and Medical Technology Application, Zhengzhou Railway Vocational & Technical CollegeZhengzhou 451460, Henan Province, China
| | - Pengfei Wang
- Microsurgery, The First Affiliated Hospital of Xinxiang Medical CollegeWeihui 453100, Xinxiang, Henan Province, China
| | - Keliang Chang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
| | - Genwei Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
| | - Xiaoteng Geng
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
| | - Yang Wu
- Henan Provincial Engineering Research Center of Natural Drug Extraction and Medical Technology Application, Zhengzhou Railway Vocational & Technical CollegeZhengzhou 451460, Henan Province, China
- Department of Neurosurgery, The People’s Hospital of Minquan CountyMinquan 476800, Henan Province, China
| | - Wanhong Zhang
- Department of Neurosurgery, Kaifeng Central HospitalKaifeng 475000, Henan Province, China
| | - Guangming Niu
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
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MicroRNA in dried blood spots from patients with Aagenaes syndrome and evaluation of pre-analytical and analytical factors. Pediatr Res 2021; 89:1780-1787. [PMID: 32932426 DOI: 10.1038/s41390-020-01153-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/07/2020] [Accepted: 08/31/2020] [Indexed: 11/08/2022]
Abstract
BACKGROUND Circulatory miRNAs are promising biomarkers. The feasibility of using miRNA from dried blood spots (DBS) was investigated using newborn screening cards from patients with cholestasis-lymphedema syndrome (Aagenaes syndrome) and controls. METHODS Total amount of miRNA and specific miRNAs from DBS were analyzed. miRNA was also obtained from newborn screening cards in patients with cholestasis-lymphedema syndrome/Aagenaes syndrome and in healthy newborns. RESULTS No differences in miRNA concentrations were found between multispotted samples and samples with one single drop of blood and between central and peripheral punches. Ten repeated freeze-thaw cycles did not significantly change miRNA levels from controls. miR-299 (1.73-fold change, p = 0.034) and miR-365 (1.46-fold change, p = 0.011) were upregulated and miR-30c (0.72-fold change, p = 0.0037), miR-652 (0.85-fold change, p = 0.025), and miR-744 (0.72-fold change, p = 0.0069) were downregulated in patients with Aagenaes syndrome at birth compared to controls. CONCLUSIONS miRNAs were not affected by multispotting or punch location and were stable throughout repeated freeze-thaw cycles. miRNA in dried blood spots could be used to detect differential expression of miRNA in newborns with Aagenaes syndrome and healthy controls in newborn screening cards. Dried blood spots may be a useful source to explore circulating miRNA as biomarkers. IMPACT Circulating miRNAs can be useful biomarkers. miRNAs from dried blood spots were not affected by multispotting or punch location and were stable throughout repeated freeze-thaw cycles. Discrimination between patients and controls are allowed even with few individuals. Early after birth, patients with cholestasis-lymphedema syndrome exhibit miRNA profiles associated with liver fibrosis. This study demonstrated that newborn screening cards may be a useful source for studying miRNA as the technical variability is smaller than biological variation.
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Gao L, Tian Q, Wu T, Shi S, Yin X, Liu L, Zheng L, Wang P, Tian Y, Xu S. Reduction of miR-744 delivered by NSCLC cell-derived extracellular vesicles upregulates SUV39H1 to promote NSCLC progression via activation of the Smad9/BMP9 axis. J Transl Med 2021; 19:37. [PMID: 33472665 PMCID: PMC7816389 DOI: 10.1186/s12967-020-02654-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 11/30/2020] [Indexed: 12/24/2022] Open
Abstract
Background Non-small cell lung cancer (NSCLC) is a common type of lung cancer. Extracellular vehicles (EVs) are nano-sized particles containing proteins, lipids, and miRNAs secreted by various cells, which play important roles in the development of lung cancer by regulating a wide range of signaling pathways. This study focused on elucidating a potential mechanism by which EVs promote the development of NSCLC. Methods Expression levels of miR-744, SUV39H1, Smad9, and BMP4 in clinical tissue samples of NSCLC patients and cell lines were quantified by RT-qPCR and/or western blot analysis. The interaction between SUV39H1 and miR-744 was identified by dual-luciferase reporter assay. miR-744, SUV39H1, and BMP4 expression levels were modulated in A549 and H460 cells, in order to evaluate their effects on cell proliferation, colony formation and cell cycle. A NSCLC xenograft mouse model was used to verify the in vitro findings. NSCLC cell-derived EVs and normal bronchial epithelial cell-derived EVs were isolated and their roles in NSCLC development were evaluated in vivo and in vitro. Results miR-744 expression was lower in cancer cell-derived derived EVs than in normal lung epithelial cell-derived EVs. Reduced miR-744 expression in EVs upregulated SUV39H1 in NSCLC cells and further increased BMP4 levels to promote NSCLC development. BMP4 was upregulated in NSCLC cells upon suppression of Smad9 mediated by SUV39H1. Reduced miR-744 expression transferred from cancer cell-derived EVs into NSCLC cells enhanced cancer development. Conclusion Overall, our findings unveiled a mechanism whereby miR-744 delivered by NSCLC-derived EVs upregulated SUV39H1, activating the Smad9/BMP9 axis and thus promoted cancer development.
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Affiliation(s)
- Liming Gao
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, 066000, P.R. China
| | - Qi Tian
- Department of Respiratory, The First Hospital of Qinhuangdao, No. 258, Wenhua Road, Haigang District, Qinhuangdao, 066000, Hebei, P.R. China
| | - Tong Wu
- Hebei Medical University, Shijiazhuang, 050000, P.R. China
| | - Shanshan Shi
- Department of Respiratory, The First Hospital of Qinhuangdao, No. 258, Wenhua Road, Haigang District, Qinhuangdao, 066000, Hebei, P.R. China
| | - Xiaobo Yin
- Department of Respiratory, The First Hospital of Qinhuangdao, No. 258, Wenhua Road, Haigang District, Qinhuangdao, 066000, Hebei, P.R. China
| | - Lijie Liu
- Chengde Medical College, Chengde, 067000, P.R. China
| | - Lei Zheng
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, 066000, P.R. China
| | - Ping Wang
- Department of Respiratory, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Yaling Tian
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, 066000, P.R. China
| | - Shufeng Xu
- Department of Respiratory, The First Hospital of Qinhuangdao, No. 258, Wenhua Road, Haigang District, Qinhuangdao, 066000, Hebei, P.R. China.
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Ezhilarasan D. MicroRNA interplay between hepatic stellate cell quiescence and activation. Eur J Pharmacol 2020; 885:173507. [PMID: 32858048 DOI: 10.1016/j.ejphar.2020.173507] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/20/2020] [Accepted: 08/23/2020] [Indexed: 02/08/2023]
Abstract
Hepatic stellate cells (HSCs) activation play a significant role in the progression of hepatic fibrosis. During chronic liver diseases, hepatocytes are damaged severely and secrete several pro-inflammatory markers and profibrogenic cytokines via modulation of a variety of signaling pathways that are responsible for the activation of HSCs. The microRNAs (miRNA or miR) have the potential to modulate fibrogenic signaling pathways in HSCs. A variety of miRNAs are identified as profibrogenic and are capable of activating HSCs by modulating fibrosis-associated signaling pathways such as transforming growth factor-β/Smad, Wnt/β-catenin, Hedgehog, Snail and Notch in the injured liver. On the other hand, HSCs also have certain antifibrotic miRNAs and these include miR-16, miR-19b, miR-29, miR-30, miR-101, miR-122, miR-133a, miR-144, miR-146a, miR-150-5p, miR-155, miR-195, miR-200a, miR-214, miR-335, miR-370, miR-454, miR-483, etc. are responsible for maintenance of the quiescent phenotype of normal HSCs, apoptosis induction and phenotypic reversion of activated HSCs, inhibition of HSCs proliferation, suppression of the extracellular matrix-associated gene expressions, etc. Thus, understanding of HSCs specific miRNAs regulation may provide new ideas for the targeted therapy of hepatic fibrosis at molecular level in the near future. Therefore, this review focusses on the modulation of miRNAs profile during the HSCs activation in the fibrotic liver.
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Affiliation(s)
- Devaraj Ezhilarasan
- Department of Pharmacology, Biomedical Research Unit and Laboratory Animal Centre, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), No.162, PH Road, Chennai, Tamil Nadu, 600 077, India.
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Fu X, Qie J, Fu Q, Chen J, Jin Y, Ding Z. miR-20a-5p/TGFBR2 Axis Affects Pro-inflammatory Macrophages and Aggravates Liver Fibrosis. Front Oncol 2020; 10:107. [PMID: 32117757 PMCID: PMC7031347 DOI: 10.3389/fonc.2020.00107] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 01/21/2020] [Indexed: 12/25/2022] Open
Abstract
Combined inhibition of programmed death-ligand 1 (PD-L1) and transforming growth factor-β (TGF-β) displayed additive anti-tumor response in a subgroup of cancer patients, highlighting the importance of understanding the multifaceted roles of TGF-β in immunity and fibrosis. In the present research, we show that TGF-β signaling pathway, controlled by miR-20a-5p and transforming growth factor-β receptor 2 (TGFBR2), alters the inflammation and fibrosis processes in liver. We performed integrated analysis of differently expressed miRNA (DEM) associated with liver fibrosis and screened miR-20a-5p out as a key regulator in inflammation-driven liver fibrosis. We subsequently conducted Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of the genes targeted by miR-20a-5p. And the result showed that 12 target genes were significantly enriched in TGF-β signaling pathway. Further study showed that miR-20a-5p was down-regulated and involved in inflammation during liver fibrosis in human and mouse samples, indicating that miR-20a-5p and inflammation are functionally linked during liver fibrosis progression. To uncover the underlying pro-inflammatory mechanism of miR-20a-5p in liver fibrosis, we selected and verified TGFBR2, which is a key functional receptor in TGF-β signaling pathway, as a direct target gene of miR-20a-5p. The downregulation of miR-20a-5p in liver fibrosis resulted in TGFBR2-activated TGF-β signaling pathway, followed by the activation of macrophage and extracellular matrix (ECM) production by hepatic stellate cell (HSC). Our results identify the miR-20a-5p/TGFBR2 axis as a key regulator of TGF-β signaling, and highlight the critical role of miR-20a-5p in the development of liver fibrosis.
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Affiliation(s)
- Xiutao Fu
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jingbo Qie
- Minhang Hospital and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qingchun Fu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Jiafeng Chen
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yinpeng Jin
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Zhenbin Ding
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China
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