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Brown SD, Klimi E, Bakker WAM, Beqqali A, Baker AH. Non-coding RNAs to treat vascular smooth muscle cell dysfunction. Br J Pharmacol 2024. [PMID: 38773733 DOI: 10.1111/bph.16409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/19/2024] [Accepted: 03/14/2024] [Indexed: 05/24/2024] Open
Abstract
Vascular smooth muscle cell (vSMC) dysfunction is a critical contributor to cardiovascular diseases, including atherosclerosis, restenosis and vein graft failure. Recent advances have unveiled a fascinating range of non-coding RNAs (ncRNAs) that play a pivotal role in regulating vSMC function. This review aims to provide an in-depth analysis of the mechanisms underlying vSMC dysfunction and the therapeutic potential of various ncRNAs in mitigating this dysfunction, either preventing or reversing it. We explore the intricate interplay of microRNAs, long-non-coding RNAs and circular RNAs, shedding light on their roles in regulating key signalling pathways associated with vSMC dysfunction. We also discuss the prospects and challenges associated with developing ncRNA-based therapies for this prevalent type of cardiovascular pathology.
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Affiliation(s)
- Simon D Brown
- BHF Centre for Cardiovascular Science, Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Eftychia Klimi
- BHF Centre for Cardiovascular Science, Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | | | - Abdelaziz Beqqali
- BHF Centre for Cardiovascular Science, Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Andrew H Baker
- BHF Centre for Cardiovascular Science, Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, The Netherlands
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2
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Haybar H, Sadati NS, Purrahman D, Mahmoudian-Sani MR, Saki N. lncRNA TUG1 as potential novel biomarker for prognosis of cardiovascular diseases. Epigenomics 2023; 15:1273-1290. [PMID: 38088089 DOI: 10.2217/epi-2023-0242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024] Open
Abstract
Globally, cardiovascular diseases (CVDs) are among the leading causes of death. In light of the high prevalence and mortality of CVDs, it is imperative to understand the molecules involved in CVD pathogenesis and the signaling pathways that they initiate. This may facilitate the development of more precise and expedient diagnostic techniques, the identification of more effective prognostic molecules and the identification of potential therapeutic targets. Numerous studies have examined the role of lncRNAs, such as TUG1, in CVD pathogenesis in recent years. According to this review article, TUG1 can be considered a biomarker for predicting the prognosis of CVD.
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Affiliation(s)
- Habib Haybar
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Narjes Sadat Sadati
- Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Daryush Purrahman
- Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Reza Mahmoudian-Sani
- Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Najmaldin Saki
- Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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3
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Xu K, Liu Q, Huang W, Chu Y, Fan W, Liu J, He Y, Huang F. Promotive Effect of FBXO32 on the Odontoblastic Differentiation of Human Dental Pulp Stem Cells. Int J Mol Sci 2023; 24:ijms24097708. [PMID: 37175415 PMCID: PMC10178205 DOI: 10.3390/ijms24097708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/11/2023] [Accepted: 04/15/2023] [Indexed: 05/15/2023] Open
Abstract
Odontoblastic differentiation of human dental pulp stem cells (hDPSCs) is crucial for the intricate formation and repair processes in dental pulp. Until now, the literature is not able to demonstrate the role of ubiquitination in the odontoblastic differentiation of hDPSCs. This study investigated the role of F-box-only protein 32 (FBXO32), an E3 ligase, in the odontoblastic differentiation of hDPSCs. The mRNA expression profile was obtained from ribonucleic acid sequencing (RNA-Seq) data and analyzed. Immunofluorescence and immunohistochemical staining identify the FBXO32 expression in human dental pulp and hDPSCs. Small-hairpin RNA lentivirus was used for FBXO32 knockdown and overexpression. Odontoblastic differentiation of hDPSCs was determined via alkaline phosphatase activity, Alizarin Red S staining, and mRNA and protein expression levels were detected using real-time quantitative polymerase chain reaction and Western blotting. Furthermore, subcutaneous transplantation in nude mice was performed to evaluate the role of FBXO32 in mineralization in vivo using histological analysis. FBXO32 expression was upregulated in the odontoblast differentiated hDPSCs as evidenced by RNA-Seq data analysis. FBXO32 was detected in hDPSCs and the odontoblast layer of the dental pulp. Increased FBXO32 expression in hDPSCs during odontoblastic differentiation was confirmed. Through lentivirus infection method, FBXO32 downregulation in hDPSCs attenuated odontoblastic differentiation in vitro and in vivo, whereas FBXO32 upregulation promoted the hDPSCs odontoblastic differentiation, without affecting proliferation and migration. This study demonstrated, for the first time, the promotive role of FBXO32 in regulating the odontoblastic differentiation of hDPSCs, thereby providing novel insights into the regulatory mechanisms during odontoblastic differentiation in hDPSCs.
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Affiliation(s)
- Ke Xu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Qin Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Wushuang Huang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yanhao Chu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Wenguo Fan
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Jiawei Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yifan He
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Fang Huang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
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4
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Shi C, Luo W, Sun C, Yu L, Zhou X, Hua D, Jiang Z, Wang Q, Yu S. The miR-29 family members induce glioblastoma cell apoptosis by targeting cell division cycle 42 in a p53-dependent manner. Eur J Clin Invest 2023; 53:e13964. [PMID: 36727260 DOI: 10.1111/eci.13964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/03/2023]
Abstract
BACKGROUND Emerging evidence has shown that miR-29 is a promising biomarker and therapeutic target for malignancies. The roles of miR-29a/b/c in glioma pathogenesis remain need further investigation. METHODS The expression levels of miR-29a/b/c and CDC42 were systematically analysed, and prognostic significance was evaluated by Kaplan-Meier survival and Cox regression analyses. The roles of miR-29a/b/c in apoptosis and the underlying mechanisms were explored via an alkaline single-cell gel electrophoresis assay, caspase 3/7 activity assays and Western blotting. RESULTS miR-29a/b/c expression decreased progressively with the elevation of the WHO grade in our 147 human glioma specimens, compared with 20 non-tumour control brain tissues, and decreased miR-29a/b/c expression was associated with more aggressive phenotypes. Kaplan-Meier and Cox regression analyses demonstrated that lower miR-29a/b/c expression was correlated with worse prognosis, which was confirmed by analysis of 198 glioma patients from the CGGA cohort. These all indicate that miR-29a/b/c were independent predictors of prognosis in glioma patients. miR-29a/b/c induced apoptosis in GBM cells by silencing CDC42. Further detailed mechanistic investigation revealed that miR-29a/b/c promoted apoptosis in a p53-dependent manner by suppressing the CDC42/PAK/AKT/MDM2 pathway. CONCLUSIONS miR-29a/b/c are independent predictors of prognosis in glioma patients. They induce glioblastoma cell apoptosis via silencing of CDC42 and suppression of downstream PAK/AKT/MDM2 signalling in a p53-dependent manner.
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Affiliation(s)
- Cuijuan Shi
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin, China.,Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China.,State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Wenjun Luo
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin, China.,Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China
| | - Cuiyun Sun
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin, China.,Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China
| | - Lin Yu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences of Tianjin Medical University, Tianjin, China
| | - Xuexia Zhou
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin, China.,Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China
| | - Dan Hua
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin, China.,Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China
| | - Zhendong Jiang
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin, China.,Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China
| | - Qian Wang
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin, China.,Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China
| | - Shizhu Yu
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin, China.,Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China
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Huang N, Wang D, Zhu TT, Ge XY, Liu H, Yao MZ, Guo YZ, Peng J, Wang Q, Zhang Z, Hu CP. Plasma exosomes confer hypoxic pulmonary hypertension by transferring LOX-1 cargo to trigger phenotypic switching of pulmonary artery smooth muscle cells. Biochem Pharmacol 2023; 207:115350. [PMID: 36435201 DOI: 10.1016/j.bcp.2022.115350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 10/05/2022] [Accepted: 11/10/2022] [Indexed: 11/24/2022]
Abstract
The pulmonary vascular remodeling (PVR), the pathological basis of pulmonary hypertension (PH), entails pulmonary artery smooth muscle cells (PASMCs) phenotypic switching, but appreciation of the underlying mechanisms is incomplete. Exosomes, a novel transfer machinery enabling delivery of its cargos to recipient cells, have been recently implicated in cardiovascular diseases including PH. The two critical questions of whether plasma-derived exosomes drive PASMCs phenotypic switching and what cargo the exosomes transport, however, remain unclear. Herein, by means of transmission electron microscopy and protein detection, we for the first time, characterized lectin like oxidized low-density lipoprotein receptor-1 (LOX-1) as a novel cargo of plasma-derived exosomes in PH. With LOX-1 knockout (Olr1-/-) rats-derived exosomes, we demonstrated that exosomal LOX-1 could be transferred into PASMCs and thus elicited cell phenotypic switching. Of importance, Olr1-/- rats exhibited no cell phenotypic switching and developed less severe PH, but administration of wild type rather than Olr1-/- exosomes to Olr1-/- rats recapitulated the phenotype of PH with robust PASMCs phenotypic switching. We also revealed that exosomal LOX-1 triggered PASMCs phenotypic switching, PVR and ultimately PH via ERK1/2-KLF4 signaling axis. This study has generated proof that plasma-derived exosomes confer PH by delivering LOX-1 into PASMCs. Hence, exosomal LOX-1 represents a novel exploitable target for PH prevention and treatment.
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Affiliation(s)
- Ning Huang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China; Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou Henan 450052, China
| | - Di Wang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China
| | - Tian-Tian Zhu
- College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453000, China; Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang, Henan 453000, China
| | - Xiao-Yue Ge
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China
| | - Hong Liu
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China
| | - Mao-Zhong Yao
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China
| | - Yan-Zi Guo
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China
| | - Jun Peng
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China; Hunan Provincial Key Laboratory of Cardiovascular Research, Central South University, Changsha, Hunan 410078, China
| | - Qing Wang
- The Interventional Radiology & Vascular Surgery Department, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, China
| | - Zheng Zhang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China; Hunan Provincial Key Laboratory of Cardiovascular Research, Central South University, Changsha, Hunan 410078, China.
| | - Chang-Ping Hu
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China; Hunan Provincial Key Laboratory of Cardiovascular Research, Central South University, Changsha, Hunan 410078, China.
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6
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The Role of miR-29 Family in TGF-β Driven Fibrosis in Glaucomatous Optic Neuropathy. Int J Mol Sci 2022; 23:ijms231810216. [PMID: 36142127 PMCID: PMC9499597 DOI: 10.3390/ijms231810216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 11/17/2022] Open
Abstract
Primary open angle glaucoma (POAG), a chronic optic neuropathy, remains the leading cause of irreversible blindness worldwide. It is driven in part by the pro-fibrotic cytokine transforming growth factor beta (TGF-β) and leads to extracellular matrix remodelling at the lamina cribrosa of the optic nerve head. Despite an array of medical and surgical treatments targeting the only known modifiable risk factor, raised intraocular pressure, many patients still progress and develop significant visual field loss and eventual blindness. The search for alternative treatment strategies targeting the underlying fibrotic transformation in the optic nerve head and trabecular meshwork in glaucoma is ongoing. MicroRNAs are small non-coding RNAs known to regulate post-transcriptional gene expression. Extensive research has been undertaken to uncover the complex role of miRNAs in gene expression and miRNA dysregulation in fibrotic disease. MiR-29 is a family of miRNAs which are strongly anti-fibrotic in their effects on the TGF-β signalling pathway and the regulation of extracellular matrix production and deposition. In this review, we discuss the anti-fibrotic effects of miR-29 and the role of miR-29 in ocular pathology and in the development of glaucomatous optic neuropathy. A better understanding of the role of miR-29 in POAG may aid in developing diagnostic and therapeutic strategies in glaucoma.
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7
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Rajabi S, Najafipour H, Sheikholeslami M, Jafarinejad-Farsangi S, Beik A, Askaripour M, Karam ZM. Perillyl alcohol and quercetin modulate the expression of non-coding RNAs MIAT, H19, miR-29a, and miR-33a in pulmonary artery hypertension in rats. Noncoding RNA Res 2022; 7:27-33. [PMID: 35155877 PMCID: PMC8818487 DOI: 10.1016/j.ncrna.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 11/29/2022] Open
Abstract
Background Non-coding RNAs, including long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), play critical roles in the pathogenesis and progression of pulmonary artery hypertension (PAH). LncRNA H19, myocardial infarction-associated transcript (MIAT), miR-29a, and miR-33a have been suggested as potential targets for treating arterial hypertension. We explored the expression pattern of non-coding RNAs H19, MIAT, miR-29a, and miR-33a in monocrotaline (MCT)-induced PAH rats. Moreover, we investigated whether perillyl alcohol (PA) and quercetin (QS), two plant derivatives with beneficial effects on PAH-induced abnormalities, act through regulating the expression of these non-coding RNAs. Methods Male Wistar rats (n = 30) were divided into five groups. MCT (60 mg/kg) was injected subcutaneously to induce PAH. PA (50 mg/kg daily) and QS (30 mg/kg daily) were administered three weeks after induction of PAH. H&E staining and qRT-PCR were performed to assess arteriole wall thickness and gene expression, respectively. Results Right ventricular systolic pressure (RVSP) and right ventricular hypertrophy (RVH) increased in MCT and MCT + Veh. groups compared to the control group (in both P < 0.001). QS and PA decreased RVSP and RVH significantly. Wall thickness and fibrosis score in the MCT group (score 3) increased compared to the control group (score 0). PA and QS ameliorated wall thickness and fibrosis to score 1 (mild). Also, the expression of miR-29a and miR-33a decreased in the PAH group (in both, P < 0.001). Treatment with PA and QS decreased the expression of H19 (P < 0.001) and MIAT (P < 0.01) and increased the expression of miR-29a (P < 0.01) and miR-33a significantly (P < 0.05 for QS and P < 0.001 for PA). Conclusions The beneficial effects of PA and QS on PAH-induced abnormalities were exerted through returning the dysregulated expression of H19, MIAT, miR-29a, and miR-33a to normal levels in rats with MTC-induced PAH. This study emphasized the therapeutic potential of PA and QS in PAH. However, more detailed investigations are needed to clarify the underlying molecular mechanisms.
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Affiliation(s)
- Soodeh Rajabi
- Student Research Committee, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Hamid Najafipour
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Science, Kerman, Iran
| | - Mozhgan Sheikholeslami
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Saeideh Jafarinejad-Farsangi
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
- Corresponding author. Physiology Research Center, Kerman University of Medical Sciences, Jehad Blvd, Ebn Sina Avenue, Kerman, 76198-13159, Iran.
| | - Ahmad Beik
- Endocrinology and Metabolism Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Askaripour
- Department of Physiology, Bam University of Medical Sciences, Bam, Iran
| | - Zahra Miri Karam
- Gastroenterology and Hepatology Research Center, Kerman University of Medical Sciences, Kerman, Iran
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8
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Single-Cell Analysis Uncovers Osteoblast Factor Growth Differentiation Factor 10 as Mediator of Vascular Smooth Muscle Cell Phenotypic Modulation Associated with Plaque Rupture in Human Carotid Artery Disease. Int J Mol Sci 2022; 23:ijms23031796. [PMID: 35163719 PMCID: PMC8836240 DOI: 10.3390/ijms23031796] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/21/2022] [Accepted: 01/26/2022] [Indexed: 12/18/2022] Open
Abstract
(1) Background: Vascular smooth muscle cells (VSMCs) undergo a complex phenotypic switch in response to atherosclerosis environmental triggers, contributing to atherosclerosis disease progression. However, the complex heterogeneity of VSMCs and how VSMC dedifferentiation affects human carotid artery disease (CAD) risk has not been clearly established. (2) Method: A single-cell RNA sequencing analysis of CD45− cells derived from the atherosclerotic aorta of Apolipoprotein E-deficient (Apoe−/−) mice on a normal cholesterol diet (NCD) or a high cholesterol diet (HCD), respecting the site-specific predisposition to atherosclerosis was performed. Growth Differentiation Factor 10 (GDF10) role in VSMCs phenotypic switch was investigated via flow cytometry, immunofluorescence in human atherosclerotic plaques. (3) Results: scRNAseq analysis revealed the transcriptomic profile of seven clusters, five of which showed disease-relevant gene signature of VSMC macrophagic calcific phenotype, VSMC mesenchymal chondrogenic phenotype, VSMC inflammatory and fibro-phenotype and VSMC inflammatory phenotype. Osteoblast factor GDF10 involved in ossification and osteoblast differentiation emerged as a hallmark of VSMCs undergoing phenotypic switch. Under hypercholesteremia, GDF10 triggered VSMC osteogenic switch in vitro. The abundance of GDF10 expressing osteogenic-like VSMCs cells was linked to the occurrence of carotid artery disease (CAD) events. (4) Conclusions: Taken together, these results provide evidence about GDF10-mediated VSMC osteogenic switch, with a likely detrimental role in atherosclerotic plaque stability.
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Liu C, Li L, Ge M, Gu L, Zhang K, Su Y, Zhang Y, Liu C, Lan M, Yu Y, Wang T, Zhang B, Zhou G, Meng Q. MiR-29ab1 Cluster Resists Muscle Atrophy Through Inhibiting MuRF1. DNA Cell Biol 2021; 40:1167-1176. [PMID: 34255539 DOI: 10.1089/dna.2021.0267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Skeletal muscle has great plasticity. An increase in protein degradation can cause muscle atrophy. Atrogin-1 and muscle ring finger-1 (MuRF1) are dramatically upregulated in various muscle atrophy. Inhibition of Atrogin-1 and MuRF1 protects against muscle atrophy. MiR-29 plays an important regulatory role in skeletal muscle development. However, the function of miR-29 in skeletal muscle protein metabolism is not clear. To investigate the function of miR-29, we generated miR-29 knockout mice and the miR-29ab1 cluster overexpression mice. The disruption of miR-29 led to severe atrophy of skeletal muscle during puberty, and the muscle-specific overexpression of the miR-29ab1 cluster protected against denervation-induced and fasting-induced muscle atrophy. Furthermore, the overexpression of miR-29a, b mimics in myotubes resisted the muscle atrophy. MuRF1 was the direct target gene of miR-29a, b. These results demonstrate that miR-29ab1 cluster plays a critical role in the maintenance of skeletal muscle. MiR-29ab1 cluster is the excellent inhibitor of MuRF1, ultimately indicating that miR-29ab1 cluster is good therapeutic molecule candidate for adulthood.
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Affiliation(s)
- Chuncheng Liu
- Inner Mongolia Key Laboratory of Functional Genome Bioinformatics, School of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, China
| | - Lei Li
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Mengxu Ge
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Lijie Gu
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Kuo Zhang
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yang Su
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yuying Zhang
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Chang Liu
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Miaomiao Lan
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yingying Yu
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Tongtong Wang
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Bing Zhang
- Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, China Agricultural University, Beijing, China
| | - Guangbin Zhou
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Qingyong Meng
- The State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Biological Science, China Agricultural University, Beijing, China
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10
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Chen Q, Wang W, Chen S, Chen X, Lin Y. miR-29a sensitizes the response of glioma cells to temozolomide by modulating the P53/MDM2 feedback loop. Cell Mol Biol Lett 2021; 26:21. [PMID: 34044759 PMCID: PMC8161631 DOI: 10.1186/s11658-021-00266-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/18/2021] [Indexed: 02/07/2023] Open
Abstract
Recently, pivotal functions of miRNAs in regulating common tumorigenic processes and manipulating signaling pathways in brain tumors have been recognized; notably, miR‐29a is closely associated with p53 signaling, contributing to the development of glioma. However, the molecular mechanism of the interaction between miR-29a and p53 signaling is still to be revealed. Herein, a total of 30 glioma tissues and 10 non-cancerous tissues were used to investigate the expression of miR‐29a. CCK-8 assay and Transwell assay were applied to identify the effects of miR-29a altered expression on the malignant biological behaviors of glioma cells in vitro, including proliferation, apoptosis, migration and invasion. A dual-luciferase reporter assay was used to further validate the regulatory effect of p53 or miR-29a on miR-29a or MDM2, respectively, at the transcriptional level. The results showed that miR-29a expression negatively correlated with tumor grade of human gliomas; at the same time it inhibited cell proliferation, migration, and invasion and promoted apoptosis of glioma cells in vitro. Mechanistically, miR-29a expression was induced by p53, leading to aberrant expression of MDM2 targeted by miR-29a, and finally imbalanced the activity of the p53-miR-29a-MDM2 feedback loop. Moreover, miR-29a regulating p53/MDM2 signaling sensitized the response of glioma cells to temozolomide treatment. Altogether, the study demonstrated a potential molecular mechanism in the tumorigenesis of glioma, while offering a possible target for treating human glioma in the future.
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Affiliation(s)
- Qiudan Chen
- The Department of Central Laboratory, Clinical Laboratory, Jing'an District Center Hospital of Shanghai, Fudan University, Shanghai, 200040, China
| | - Weifeng Wang
- Department of Central Laboratory, Clinical Medicine Scientific and Technical Innovation Park, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200435, China
| | - Shuying Chen
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, Shanghai, 20040, China
| | - Xiaotong Chen
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, Shanghai, 20040, China
| | - Yong Lin
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, Shanghai, 20040, China.
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11
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Shen M, Quertermous T, Fischbein MP, Wu JC. Generation of Vascular Smooth Muscle Cells From Induced Pluripotent Stem Cells: Methods, Applications, and Considerations. Circ Res 2021; 128:670-686. [PMID: 33818124 PMCID: PMC10817206 DOI: 10.1161/circresaha.120.318049] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The developmental origin of vascular smooth muscle cells (VSMCs) has been increasingly recognized as a major determinant for regional susceptibility or resistance to vascular diseases. As a human material-based complement to animal models and human primary cultures, patient induced pluripotent stem cell iPSC-derived VSMCs have been leveraged to conduct basic research and develop therapeutic applications in vascular diseases. However, iPSC-VSMCs (induced pluripotent stem cell VSMCs) derived by most existing induction protocols are heterogeneous in developmental origins. In this review, we summarize signaling networks that govern in vivo cell fate decisions and in vitro derivation of distinct VSMC progenitors, as well as key regulators that terminally specify lineage-specific VSMCs. We then highlight the significance of leveraging patient-derived iPSC-VSMCs for vascular disease modeling, drug discovery, and vascular tissue engineering and discuss several obstacles that need to be circumvented to fully unleash the potential of induced pluripotent stem cells for precision vascular medicine.
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Affiliation(s)
- Mengcheng Shen
- Stanford Cardiovascular Institute
- Division of Cardiovascular Medicine, Department of Medicine
| | - Thomas Quertermous
- Stanford Cardiovascular Institute
- Division of Cardiovascular Medicine, Department of Medicine
| | | | - Joseph C. Wu
- Stanford Cardiovascular Institute
- Division of Cardiovascular Medicine, Department of Medicine
- Department of Radiology, Stanford University School of Medicine, Stanford, CA
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12
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MiR-29b is associated with perinatal inflammation in extremely preterm infants. Pediatr Res 2021; 89:889-893. [PMID: 32386397 PMCID: PMC7649129 DOI: 10.1038/s41390-020-0943-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/14/2020] [Accepted: 04/28/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Inflammation is strongly associated with premature birth and neonatal morbidities. Increases in infant haptoglobin, haptoglobin-related protein (Hp&HpRP), and interleukin-6 (IL-6) levels are indicators of intra-amniotic inflammation (IAI) and have been linked to poor neonatal outcomes. Inflammation causes epigenetic changes, specifically suppression of miR-29 expression. The current study sought to determine whether miR-29b levels in cord blood or neonatal venous blood are associated with IAI, identified by elevated IL-6 and Hp, and subsequent clinical morbidities in the infant. METHODS We tested 92 cord blood samples from premature newborns and 18 venous blood samples at 36 weeks corrected gestational age. MiR-29b, Hp&HpRP, and IL-6 were measured by polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. RESULTS Decreased levels of miR-29b were observed in infants exposed to IAI with elevated Hp&HpRP and IL-6 levels and in infants delivered by spontaneous preterm birth. Lower miR-29 levels were also observed in women diagnosed with histological chorioamnionitis or funisitis and in infants with cerebral palsy. Higher levels of miR-29 were measured in infants small for gestational age and in venous samples from older infants. CONCLUSIONS MiR-29 may be an additional biomarker of IAI and a potential therapeutic target for treating poor newborn outcomes resulting from antenatal exposure to IAI. IMPACT Decreases in miR-29b are associated with intrauterine inflammation. Hp&HpRP increases are associated with decreased miR-29b. MiR-29b may be an additional biomarker for neonatal outcomes and a potential therapeutic target for intrauterine inflammation.
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13
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Hrdlicka HC, Pereira RC, Shin B, Yee SP, Deymier AC, Lee SK, Delany AM. Inhibition of miR-29-3p isoforms via tough decoy suppresses osteoblast function in homeostasis but promotes intermittent parathyroid hormone-induced bone anabolism. Bone 2021; 143:115779. [PMID: 33253931 PMCID: PMC7770763 DOI: 10.1016/j.bone.2020.115779] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 11/16/2020] [Accepted: 11/24/2020] [Indexed: 01/07/2023]
Abstract
miRNAs play a vital role in post-transcriptional regulation of gene expression in osteoblasts and osteoclasts, and the miR-29 family is expressed in both lineages. Using mice globally expressing a miR-29-3p tough decoy, we demonstrated a modest 30-60% decrease all three miR-29-3p isoforms: miR-29a, miR-29b, and miR-29c. While the miR-29-3p decoy did not impact osteoclast number or function, the tough decoy decreased bone formation in growing mice, which led to decreased trabecular bone volume in mature animals. These data support previous in vitro studies suggesting that miR-29-3p is a positive regulator of osteoblast differentiation. In contrast, when mice were treated with intermittent parathyroid hormone (PTH1-34), inhibition of miR-29-3p augmented the effect of PTH on cortical bone anabolism, increased bone formation rate and osteoblast surface, and increased levels of Ctnnb1/βcatenin mRNA, which is a miR-29 target. These findings highlight differences in the mechanisms controlling basal level bone formation and bone formation induced by intermittent PTH. Overall, the global miR-29-3p tough decoy model represents a modest loss-of-function, which could be a relevant tool for assessing the possible impact of systemically administered miR-29-3p inhibitors. Our studies provide a potential rationale for co-administration of PTH1-34 and miR-29-3p inhibitors, to boost bone formation in severely affected osteoporosis patients, particularly in the cortical compartment.
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Affiliation(s)
- Henry C Hrdlicka
- Center for Molecular Oncology, UConn Health Center, Farmington, CT, United States of America
| | - Renata C Pereira
- Division of Pediatric Nephrology, David Geffen School of Medicine at University of California, Los Angeles, United States of America
| | - Bongjin Shin
- Center on Aging, UConn Health Center, Farmington, CT, United States of America
| | - Siu-Pok Yee
- Center for Mouse Genome Modification, UConn Health Center, Farmington, CT, United States of America
| | - Alix C Deymier
- Institute of Material Sciences, UConn Health Center, Farmington, CT, United States of America
| | - Sun-Kyeong Lee
- Center on Aging, UConn Health Center, Farmington, CT, United States of America.
| | - Anne M Delany
- Center for Molecular Oncology, UConn Health Center, Farmington, CT, United States of America.
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14
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Hines MJ, Coffre M, Mudianto T, Panduro M, Wigton EJ, Tegla C, Osorio-Vasquez V, Kageyama R, Benhamou D, Perez O, Bajwa S, McManus MT, Ansel KM, Melamed D, Koralov SB. miR-29 Sustains B Cell Survival and Controls Terminal Differentiation via Regulation of PI3K Signaling. Cell Rep 2020; 33:108436. [PMID: 33264610 DOI: 10.1016/j.celrep.2020.108436] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 10/01/2020] [Accepted: 11/05/2020] [Indexed: 12/21/2022] Open
Abstract
The phosphatidylinositol 3-kinase (PI3K) signaling cascade downstream of the B cell receptor (BCR) signalosome is essential for B cell maturation. Proper signaling strength is maintained through the PI3K negative regulator phosphatase and tensin homolog (PTEN). Although a role for microRNA (miRNA)-dependent control of the PTEN-PI3K axis has been described, the contribution of individual miRNAs to the regulation of this crucial signaling modality in mature B lymphocytes remains to be elucidated. Our analyses reveal that ablation of miR-29 specifically in B lymphocytes results in an increase in PTEN expression and dampening of the PI3K pathway in mature B cells. This dysregulation has a profound impact on the survival of B lymphocytes and results in increased class switch recombination and decreased plasma cell differentiation. Furthermore, we demonstrate that ablation of one copy of Pten is sufficient to ameliorate the phenotypes associated with miR-29 loss. Our data suggest a critical role for the miR-29-PTEN-PI3K regulatory axis in mature B lymphocytes.
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Affiliation(s)
- Marcus J Hines
- Department of Pathology, NYU School of Medicine, New York, NY 10016, USA
| | - Maryaline Coffre
- Department of Pathology, NYU School of Medicine, New York, NY 10016, USA
| | - Tenny Mudianto
- Department of Pathology, NYU School of Medicine, New York, NY 10016, USA
| | - Marisella Panduro
- Department of Microbiology and Immunology, UCSF, San Francisco, CA 94143, USA; Sandler Asthma Basic Research Center, UCSF, San Francisco, CA 94143, USA
| | - Eric J Wigton
- Department of Microbiology and Immunology, UCSF, San Francisco, CA 94143, USA; Sandler Asthma Basic Research Center, UCSF, San Francisco, CA 94143, USA
| | - Cosmin Tegla
- Department of Pathology, NYU School of Medicine, New York, NY 10016, USA
| | | | - Robin Kageyama
- Department of Microbiology and Immunology, UCSF, San Francisco, CA 94143, USA; Sandler Asthma Basic Research Center, UCSF, San Francisco, CA 94143, USA
| | - David Benhamou
- Department of Immunology, Faculty of Medicine, Technion, Haifa 31096, Israel
| | - Oriana Perez
- Department of Pathology, NYU School of Medicine, New York, NY 10016, USA
| | - Sofia Bajwa
- Department of Pathology, NYU School of Medicine, New York, NY 10016, USA
| | - Michael T McManus
- Department of Microbiology and Immunology, UCSF, San Francisco, CA 94143, USA; Diabetes Center, UCSF, San Francisco, CA 94143, USA
| | - K Mark Ansel
- Department of Microbiology and Immunology, UCSF, San Francisco, CA 94143, USA; Sandler Asthma Basic Research Center, UCSF, San Francisco, CA 94143, USA
| | - Doron Melamed
- Department of Immunology, Faculty of Medicine, Technion, Haifa 31096, Israel.
| | - Sergei B Koralov
- Department of Pathology, NYU School of Medicine, New York, NY 10016, USA.
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15
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Perinatal inflammation alters histone 3 and histone 4 methylation patterns: Effects of MiR-29b supplementation. Redox Biol 2020; 38:101783. [PMID: 33202301 PMCID: PMC7677713 DOI: 10.1016/j.redox.2020.101783] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/09/2020] [Accepted: 10/29/2020] [Indexed: 01/21/2023] Open
Abstract
Preterm birth is still a major health problem and maternal inflammation has been shown to play a role. The combination of maternal inflammation and neonatal hyperoxia contributes to epigenetic changes that influence gene expression and the development of bronchopulmonary dysplasia (BPD). We have previously demonstrated suppression of miR-29b and increases in DNA methylation in infants with severe BPD and in our mouse model of maternal inflammation and neonatal hyperoxia exposure. The present studies further explored epigenetic changes in the murine model to include histone methylation. We identified a global suppression of histone methylation in exposed mice and validated decreases in expression in well-defined histone modifications, specifically H3K4me3, H3K27me3, H3K36me2, H3K79me2, and H4K20me3. We further tested the hypothesis that restoration of miR-29b expression would restore the histone methylation marks. Using lipid nanoparticle delivery of miR-29b, partial to full methylation was reestablished for H3K4me3, H3K27me3, and H4K20me3; all tri-methylation marks. To identify the causes of decreased methylation in exposed mice, we measured commonly identified methylases and demethylases. We found a decreased expression of SUV40H2, a methylase primarily associated with H4K20me3. Further studies are needed to identify the causes for the decreased global histone methylation and potential therapeutic opportunities.
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16
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Shvedova M, Kobayashi T. MicroRNAs in cartilage development and dysplasia. Bone 2020; 140:115564. [PMID: 32745689 PMCID: PMC7502492 DOI: 10.1016/j.bone.2020.115564] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/24/2020] [Accepted: 07/28/2020] [Indexed: 12/13/2022]
Abstract
Small regulatory microRNAs (miRNAs) post-transcriptionally suppress gene expression. MiRNAs expressed in skeletal progenitor cells and chondrocytes regulate diverse aspects of cellular function and thus skeletal development. In this review, we discuss the role of miRNAs in skeletal development, particularly focusing on those whose physiological roles were revealed in vivo. Deregulation of miRNAs is found in multiple acquired diseases such as cancer; however congenital diseases caused by mutations in miRNA genes are very rare. Among those are mutations in miR-140 and miR-17~92 miRNAs which cause skeletal dysplasias. We also discuss pathological mechanisms underlining these skeletal dysplasias.
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Affiliation(s)
- Maria Shvedova
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Tatsuya Kobayashi
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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17
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Jin X, Xu Y, Guo M, Sun Y, Ding J, Li L, Zheng X, Li S, Yuan D, Li SS. hsa_circNFXL1_009 modulates apoptosis, proliferation, migration, and potassium channel activation in pulmonary hypertension. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 23:1007-1019. [PMID: 33614247 PMCID: PMC7868929 DOI: 10.1016/j.omtn.2020.09.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/23/2020] [Indexed: 11/24/2022]
Abstract
In this study, we explored the circular RNA (circRNA) profile in pulmonary arterial hypertension (PAH) patients caused by chronic obstructive pulmonary disease (COPD) and the effects of hsa_circNFXL1_009 on abnormal proliferation, apoptosis, and migration of human pulmonary arterial smooth muscle cells (hPASMCs) driven by hypoxia. Using microarrays, we screened the circRNA profile in whole-blood samples from three pairs of subjects and found 158 dysregulated circRNAs in patients with PAH-COPD. Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) analysis further validated that hsa_circNFXL1_009 was dramatically downregulated with the highest area under a receiver operating characteristic curve (ROC) in 21 pairs of subjects. Consistently, exposure to hypoxia markedly reduced the hsa_circNFXL1_009 level in cultured hPASMCs. Delivery of exogenous hsa_circNFXL1_009 attenuated hypoxia-induced proliferation, apoptotic resistance, and migration of hPASMCs, as evidenced by immunocytochemistry, 5-ethynyl-2′-deoxyuridine incorporation, wound healing, and a TUNEL (terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labeling) assay. A luciferase assay showed that hsa_circNFXL1_009 directly sponged hsa-miR-29b-2-5p (miR-29b) and positively regulated the expression of voltage-gated potassium (K+) channel subfamily B member 1 (KCNB1) at the mRNA level. Using patch-clamp electrophysiology, we proved that overexpression of hsa_circNFXL1_009 promoted a whole-cell K+ current in hPASMCs. Taken together, these studies identify hsa_circNFXL1_009 as a key regulator of PAH, and it may be used as a potential therapeutic target for the treatment of PAH.
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Affiliation(s)
- Xin Jin
- School of Medicine, Nankai University, Tianjin, China
| | - Yuanyuan Xu
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Min Guo
- Department of Endocrinology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yushuang Sun
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Junzhu Ding
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Lu Li
- School of Medicine, Nankai University, Tianjin, China
| | - Xiaodong Zheng
- Department of Genetics and Cell Biology, Harbin Medical University-Daqing, Daqing, China
| | - Shuzhen Li
- Department of Immunology, College of Basic Medical Sciences, Shenyang Medical College, Shenyang, China
| | - Dandan Yuan
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shan-Shan Li
- School of Medicine, Nankai University, Tianjin, China
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18
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Dai Y, Chen Z, Zhao W, Cai G, Wang Z, Wang X, Hu H, Zhang Y. miR-29a-5p Regulates the Proliferation, Invasion, and Migration of Gliomas by Targeting DHRS4. Front Oncol 2020; 10:1772. [PMID: 33014873 PMCID: PMC7511594 DOI: 10.3389/fonc.2020.01772] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 08/07/2020] [Indexed: 02/06/2023] Open
Abstract
Gliomas are the most common malignant primary brain tumors in adults and exhibit a spectrum of aberrantly aggressive phenotypes. MicroRNAs (miRNAs) play a regulatory role in various cancers, including gliomas; however, their specific roles and mechanisms have not been fully investigated. Studies have indicated that miR-29a is a tumor-suppressive miRNA, but the data are limited. In this study, we investigated the role of miR-29a-5p in glioma and further explored its underlying mechanisms. On the basis of bioinformatics, dehydrogenase/reductase 4 (DHRS4) was considered a potential target of miR-29a-5p and was also found to be highly expressed in gliomas in our experiments. Moreover, with a luciferase reporter assay, DHRS4 was found to be a target gene of miR-29a-5p and to be correlated with glioma proliferation, invasion, and migration in our in vivo and in vitro experiments. Simultaneously, we observed that the knockdown of DHRS4 rescued the downregulation of glioma proliferation, invasion, and migration caused by treatment with a mir-29a-5p inhibitor. The present findings demonstrate that miR-29a-5p suppresses cell proliferation, invasion, and migration by targeting DHRS4, and DHRS4 may be a potential new oncogene and prognostic factor in gliomas.
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Affiliation(s)
- Yong Dai
- Department of Neurosurgery, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Zhenhua Chen
- Department of Neurosurgery, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Wei Zhao
- Department of Neurosurgery, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Gang Cai
- Department of Neurosurgery, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Zhifeng Wang
- Department of Neurosurgery, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Xuejiang Wang
- Department of Neurosurgery, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Hongkang Hu
- Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Yi Zhang
- Department of Neurosurgery, Second Affiliated Hospital of Nantong University, Nantong, China
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19
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Wu T, Wang S, Wang L, Zhang W, Chen W, Lv X, Li Y, Hussain Z, Sun W. Long Noncoding RNA (lncRNA) CTTN-IT1 Elevates Skeletal Muscle Satellite Cell Proliferation and Differentiation by Acting as ceRNA for YAP1 Through Absorbing miR-29a in Hu Sheep. Front Genet 2020; 11:843. [PMID: 32849826 PMCID: PMC7427492 DOI: 10.3389/fgene.2020.00843] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/13/2020] [Indexed: 12/26/2022] Open
Abstract
Characterizing the factors that regulate the growth and development of muscle is central to animal production. Skeletal muscle satellite cells (SMSCs) provide an important material for simulating the proliferation and differentiation of muscle cells. YAP1, which can promote muscle growth, is closely related to the proliferation of SMSCs in Hu sheep (Ovis aries). In addition, some miRNAs, such as miR-541-3p, miR-142-5p, and miR-29a, can play critical roles in muscle growth by specifically binding with their target mRNAs. Meanwhile, lncRNA can competitively bind these miRNAs and reduce the regulatory effect of miRNAs on their target genes and thus play critical roles themselves in muscle growth. However, the regulatory molecular mechanism of miRNA and lncRNA on SMSC proliferation through YAP1 remains unclear. Here, we characterized the regulatory network among YAP1 and its targeted miRNAs and lncRNAs in Hu sheep SMSCs. The potential ncRNAs that regulate YAP1 (miR-29a and CTTN-IT1) were predicted through multilevel bioinformatics analysis. Dual-luciferase assays, RT-qPCR, and western blots revealed that miR-29a can significantly reduce the mRNA and protein expression level by binding to a specific 3′-UTR of YAP1 (P < 0.05), while CTTN-IT1 can restore the expression of YAP1 through competitive binding to miR-29a. Furthermore, the mRNA and protein expression levels of MyoG, MyoD, and MyHC showed that miR-29a can inhibit the expression of genes related to the differentiation of SMSCs, and CTTN-IT1 can increase the expression of these same genes. Thus, miR-29a may inhibit the differentiation of SMSCs and CTTN-IT1 can restore this inhibition. The EdU staining assay indicated that excessive miR-29a can significantly reduce the proliferation ability of SMSCs (P < 0.05), while overexpression of CTTN-IT1 can significantly increase the proliferation of SMSCs (P < 0.01). CTTN-IT1 is a novel lncRNA that is a competing endogenous RNA (ceRNA) of miR-29a and can promote SMSC proliferation and differentiation by restoring the expression of YAP1 when it is inhibited by miR-29a in Hu sheep. Overall, our findings construct a CTTN-IT1-miR-29a-YAP1 regulatory network that will help contribute new insight into improving the muscle development of Hu sheep.
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Affiliation(s)
- Tianyi Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Shanhe Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Lihong Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Weibo Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Weihao Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Xiaoyang Lv
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Yue Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Zahid Hussain
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Wei Sun
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
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20
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Farina FM, Hall IF, Serio S, Zani S, Climent M, Salvarani N, Carullo P, Civilini E, Condorelli G, Elia L, Quintavalle M. miR-128-3p Is a Novel Regulator of Vascular Smooth Muscle Cell Phenotypic Switch and Vascular Diseases. Circ Res 2020; 126:e120-e135. [PMID: 32216529 DOI: 10.1161/circresaha.120.316489] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
RATIONALE MicroRNAs (miRNAs, miRs) are small noncoding RNAs that modulate gene expression by negatively regulating translation of target genes. Although the role of several miRNAs in vascular smooth muscle cells (VSMCs) has been extensively characterized, the function of miRNA-128-3p (miR-128) is still unknown. OBJECTIVE To determine if miR-128 modulates VSMC phenotype and to define the underlying mechanisms. METHODS AND RESULTS We screened for miRNAs whose expression is modulated by an altered DNA methylation status in VSMCs, and among the hits, we selected miR-128. We found that miR-128 was expressed in various tissues, primary murine cells, and pathological murine and human vascular specimens. Through gain- and loss-of-function approaches, we determined that miR-128 affects VSMC proliferation, migration, differentiation, and contractility. The alterations of those properties were dependent upon epigenetic regulation of key VSMC differentiation genes; notably, Kruppel-like factor 4 was found to be a direct target of miR-128 and able to modulate the methylation status of the pivotal VSMC gene myosin heavy chain 11 (Myh11). Finally, in vivo lentiviral delivery of miR-128 prevented intimal hyperplasia in a mouse model of carotid restenosis without modifying vital cardiovascular parameters. CONCLUSION miR-128 is a critical modulator of VSMCs and is regulated by epigenetic modifications upon stress. Its modulation in the context of disease could be exploited for therapeutic purposes.
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Affiliation(s)
- Floriana Maria Farina
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Department of Medical Biotechnology and Translational Medicine, University of Milan, Italy (F.M.F.)
| | - Ignacio Fernando Hall
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.)
| | | | - Stefania Zani
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.)
| | - Montserrat Climent
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.)
| | - Nicolò Salvarani
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.)
| | - Pierluigi Carullo
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Institute of Genetics and Biomedical Research, National Research Council, Rozzano, Milan, Italy (P.C., G.C., L.E.)
| | - Efrem Civilini
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.)
| | - Gianluigi Condorelli
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.).,Institute of Genetics and Biomedical Research, National Research Council, Rozzano, Milan, Italy (P.C., G.C., L.E.)
| | - Leonardo Elia
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Institute of Genetics and Biomedical Research, National Research Council, Rozzano, Milan, Italy (P.C., G.C., L.E.).,Department of Molecular and Translational Medicine, University of Brescia, Italy (L.E.)
| | - Manuela Quintavalle
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.)
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Targeting vascular smooth muscle cell dysfunction with xanthine derivative KMUP-3 inhibits abdominal aortic aneurysm in mice. Atherosclerosis 2020; 297:16-24. [PMID: 32059119 DOI: 10.1016/j.atherosclerosis.2020.01.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 01/15/2020] [Accepted: 01/30/2020] [Indexed: 10/25/2022]
Abstract
BACKGROUND AND AIMS Inflammation, oxidative stress, matrix degradation, medial calcification and vascular smooth muscle cell (VSMC) loss are prominent features in abdominal aortic aneurysm (AAA). VSMC phenotypic switch to a proinflammatory state and VSMC apoptosis could be targetable mechanisms implicated in the pathogenesis of AAA formation. Herein, we investigated the hypothesis that a xanthine derivative (KMUP-3) might suppress AAA through inhibition of VSMC phenotypic switch and apoptosis. METHODS In vitro, VSMC calcification was induced using β-glycerophosphate. In vivo, AAA was induced using angiotensin II (1000 ng/kg per minute) infusion for 4 weeks in apolipoprotein E-deficient mice. RESULTS As determined by alizarin red S staining and calcium content measurements, KMUP-3 suppressed VSMC calcification. During VSMC calcification, KMUP-3 inhibited mTOR and β-catenin upregulation, essential for VSMC phenotypic switch, while it enhanced AMP-activated protein kinase (AMPK) activation that protects against VSMC phenotypic switch. Moreover, KMUP-3 attenuated VSMC apoptosis with an increased Bcl-2/Bax ratio and reduced activated caspase-3 expression. During AAA formation, treatment with KMUP-3 inhibited phosphorylated mTOR expression and increased phosphorylated AMPK expression in the medial layer. In addition, KMUP-3 treatment suppressed aortic dilatation together with reduction in proinflammatory cytokines and infiltrating macrophages, attenuation of medial VSMC apoptosis and mitigation of reactive oxygen species generation, matrix-degrading proteinase activities, elastin breakdown and vascular calcification. CONCLUSIONS Treatment with KMUP-3 inhibits aneurysm growth possibly through its interference with signaling pathways involved in VSMC phenotypic switch and apoptosis. These findings provide a proof-of-concept validation for VSMC dysfunction as a potential therapeutic target in AAA.
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22
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Ge M, Liu C, Li L, Lan M, Yu Y, Gu L, Su Y, Zhang K, Zhang Y, Wang T, Liu C, Liu F, Li M, Xiong L, Wang K, He T, Dai Y, Zhao Y, Li N, Yu Z, Meng Q. miR-29a/b1 Inhibits Hair Follicle Stem Cell Lineage Progression by Spatiotemporally Suppressing WNT and BMP Signaling. Cell Rep 2019; 29:2489-2504.e4. [DOI: 10.1016/j.celrep.2019.10.062] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 07/09/2019] [Accepted: 10/14/2019] [Indexed: 12/11/2022] Open
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Deng X, Chu X, Wang P, Ma X, Wei C, Sun C, Yang J, Li Y. MicroRNA-29a-3p Reduces TNFα-Induced Endothelial Dysfunction by Targeting Tumor Necrosis Factor Receptor 1. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 18:903-915. [PMID: 31760375 PMCID: PMC6883339 DOI: 10.1016/j.omtn.2019.10.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 09/18/2019] [Accepted: 10/12/2019] [Indexed: 12/25/2022]
Abstract
miR-29a-3p has been shown to be associated with cardiovascular diseases; however, the effect of miR-29a-3p on endothelial dysfunction is unclear. This study aimed to reveal the effects and mechanisms of miR-29a-3p on endothelial dysfunction. The levels of vascular cell adhesion molecule 1 (VCAM-1), intercellular adhesion molecule 1 (ICAM-1), and E-selectin were determined by real-time PCR and immunofluorescence staining to reveal the degree of tumor necrosis factor alpha (TNFα)-induced endothelial dysfunction. A luciferase activity assay and cell transfection with a miR-29a-3p mimic or an inhibitor were used to reveal the underlying mechanisms of miR-29a-3p action. Furthermore, the effects of miR-29a-3p on endothelial dysfunction were assessed in C57BL/6 mice injected with TNFα and/or a miR-29a-3p agomir. The results showed that the expression of TNFα-induced adhesion molecules in vascular endothelial cells (EA.hy926 cells, human aortic endothelial cells [HAECs], and primary human umbilical vein endothelial cells [pHUVECs]) and smooth muscle cells (human umbilical vein smooth muscle cells [HUVSMCs]) was significantly decreased following transfection with miR-29a-3p. This effect was reversed by cotransfection with a miR-29a-3p inhibitor. As a key target of miR-29a-3p, tumor necrosis factor receptor 1 mediated the effect of miR-29a-3p. Moreover, miR-29a-3p decreased the plasma levels of TNFα-induced VCAM-1 (32.62%), ICAM-1 (38.22%), and E-selectin (39.32%) in vivo. These data indicate that miR-29a-3p plays a protective role in TNFα-induced endothelial dysfunction, suggesting that miR-29a-3p is a novel target for the prevention and treatment of atherosclerosis.
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Affiliation(s)
- Xinrui Deng
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, China
| | - Xia Chu
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, China
| | - Peng Wang
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, China
| | - Xiaohui Ma
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, China
| | - Chunbo Wei
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, China
| | - Changhao Sun
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, China; Research Institute of Food, Nutrition and Health, Sino-Russian Medical Research Center, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, China
| | - Jianjun Yang
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Ningxia Medical University, No. 1160 Shengli Road, Xingqing District, Yinchuan 750004, China.
| | - Ying Li
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, China; Research Institute of Food, Nutrition and Health, Sino-Russian Medical Research Center, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, China.
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24
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The microRNA-29a Modulates Serotonin 5-HT7 Receptor Expression and Its Effects on Hippocampal Neuronal Morphology. Mol Neurobiol 2019; 56:8617-8627. [PMID: 31292861 DOI: 10.1007/s12035-019-01690-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/25/2019] [Indexed: 12/21/2022]
Abstract
miRNAs are master regulators of gene expression in diverse biological processes, including the modulation of neuronal cytoarchitecture. The identification of their physiological target genes remains one of the outstanding challenges. Recently, it has been demonstrated that the activation of serotonin receptor 7 (5-HT7R) plays a key role in regulating the neuronal structure, synaptogenesis, and synaptic plasticity during embryonic and early postnatal development of the central nervous system (CNS). In order to identify putative miRNAs targeting the 3'UTR of 5-HT7R mouse transcript, we used a computational prediction tool and detected the miR-29 family members as the only candidates. Thus, since miR-29a is more expressed than other members in the brain, we investigated its possible involvement in the regulation of neuronal morphology mediated by 5-HT7R. By luciferase assay, we show that miR-29a can act as a post-transcriptional regulator of 5-HT7R mRNA. Indeed, it downregulates 5-HT7R gene expression in cultured hippocampal neurons, while the expression of other serotonin receptors is not affected. From a functional point of view, miR-29a overexpression in hippocampal primary cultures impairs the 5HT7R-dependent neurite elongation and remodeling through the inhibition of the ERK intracellular signaling pathway. In vivo, the upregulation of miR-29a in the developing hippocampus parallels with the downregulation of 5-HT7R expression, supporting the hypothesis that this miRNA is a physiological modulator of 5-HT7R expression in the CNS.
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Bonnet S, Boucherat O, Provencher S, Paulin R. Early Evidence for the Role of lncRNA TUG1 in Vascular Remodelling in Pulmonary Hypertension. Can J Cardiol 2019; 35:1433-1434. [PMID: 31679615 DOI: 10.1016/j.cjca.2019.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 06/25/2019] [Accepted: 06/25/2019] [Indexed: 01/08/2023] Open
Affiliation(s)
- Sébastien Bonnet
- Pulmonary Hypertension Research Group, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, and the Department of Medicine, Université Laval, Québec City, Québec, Canada.
| | - Olivier Boucherat
- Pulmonary Hypertension Research Group, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, and the Department of Medicine, Université Laval, Québec City, Québec, Canada
| | - Steeve Provencher
- Pulmonary Hypertension Research Group, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, and the Department of Medicine, Université Laval, Québec City, Québec, Canada
| | - Roxane Paulin
- Pulmonary Hypertension Research Group, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, and the Department of Medicine, Université Laval, Québec City, Québec, Canada
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Anderluh M, Kocic G, Tomovic K, Kocic H, Smelcerovic A. DPP-4 inhibition: А novel therapeutic approach to the treatment of pulmonary hypertension? Pharmacol Ther 2019; 201:1-7. [PMID: 31095977 DOI: 10.1016/j.pharmthera.2019.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 05/08/2019] [Indexed: 02/06/2023]
Abstract
Pulmonary hypertension (PH) is a progressive disorder characterized by alterations of the vascular structure and function in the lungs. Despite the success in its stabilisation by targeting pulmonary vascular tone and endothelial dysfunction, the prognosis remains poor and new therapeutic approaches via neglected macromolecular targets are needed. In the pathophysiology of PH the early stages of vascular remodelling are considered to be reversible, while endothelial to mesenchymal transition and proliferation/migration of fibroblasts play a critical role in staging the irreversible phase. Dipeptidyl peptidase-4 (DPP-4)/CD26 is present and active in the lungs and is expressed constitutively on lung fibroblasts, on which it exerts proliferative effects. Further, it is a marker of migrating fibroblasts and of their functional activation, including collagen synthesis and inflammatory cytokine secretion. Inhibiting DPP-4 improves the reversible phases of vascular dysfunction in PH, but is also highly likely to attenuate endothelial to mesenchymal transition and decrease the proliferation and migration of fibroblasts, preventing fibrosis and, consequently, should prolong or even inhibit entrance to the potentially irreversible phase of PH. Proposed mechanisms that support the multifaceted aspects of DPP-4 inhibition in terms of improving PH, involve pathways and mediators in pulmonary vascular and connective tissue remodelling. The latter are affected by the inhibition of this protease resulting in the synergistic beneficial antioxidative, anti-inflammatory and antifibrotic effects. We offer here an evidence-supported hypothesis that DPP-4 inhibitors are likely to be effective in the irreversible phase of remodelling in PH. Accordingly, we propose PH as a possible novel therapeutic indication for existing and new DPP-4 inhibitors.
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Affiliation(s)
- Marko Anderluh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ljubljana, Askerceva 7, SI-1000, Slovenia.
| | - Gordana Kocic
- Institute of Biochemistry, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000 Nis, Serbia
| | - Katarina Tomovic
- Department of Pharmacy, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000 Nis, Serbia
| | - Hristina Kocic
- Faculty of Medicine, University of Maribor, Magdalenski trg 5, 2000 Maribor, Slovenia
| | - Andrija Smelcerovic
- Department of Chemistry, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000 Nis, Serbia.
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Alizadeh M, Safarzadeh A, Beyranvand F, Ahmadpour F, Hajiasgharzadeh K, Baghbanzadeh A, Baradaran B. The potential role of miR‐29 in health and cancer diagnosis, prognosis, and therapy. J Cell Physiol 2019; 234:19280-19297. [DOI: 10.1002/jcp.28607] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Mohsen Alizadeh
- Immunology Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Ali Safarzadeh
- Immunology Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Fatemeh Beyranvand
- Department of Pharmacology and Toxicology, Faculty of Pharmacy Lorestan University of Medical Sciences Khorramabad Iran
| | - Fatemeh Ahmadpour
- Department of Biochemistry, Faculty of Medicine Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran
| | | | - Amir Baghbanzadeh
- Immunology Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Behzad Baradaran
- Immunology Research Center Tabriz University of Medical Sciences Tabriz Iran
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Abstract
MicroRNAs (miRNA) are small non-coding RNAs (∼22 nt in length) that are known as potent master regulators of eukaryotic gene expression. miRNAs have been shown to play a critical role in cancer pathogenesis, and the misregulation of miRNAs is a well-known feature of cancer. In recent years, miR-29 has emerged as a critical miRNA in various cancers, and it has been shown to regulate multiple oncogenic processes, including epigenetics, proteostasis, metabolism, proliferation, apoptosis, metastasis, fibrosis, angiogenesis, and immunomodulation. Although miR-29 has been thoroughly documented as a tumor suppressor in the majority of studies, some controversy remains with conflicting reports of miR-29 as an oncogene. In this review, we provide a systematic overview of miR-29's functional role in various mechanisms of cancer and introspection on the contradictory roles of miR-29.
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29
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The microRNA-29/PGC1α regulatory axis is critical for metabolic control of cardiac function. PLoS Biol 2018; 16:e2006247. [PMID: 30346946 PMCID: PMC6211751 DOI: 10.1371/journal.pbio.2006247] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 11/01/2018] [Accepted: 10/09/2018] [Indexed: 01/10/2023] Open
Abstract
Different microRNAs (miRNAs), including miR-29 family, may play a role in the development of heart failure (HF), but the underlying molecular mechanisms in HF pathogenesis remain unclear. We aimed at characterizing mice deficient in miR-29 in order to address the functional relevance of this family of miRNAs in the cardiovascular system and its contribution to heart disease. In this work, we show that mice deficient in miR-29a/b1 develop vascular remodeling and systemic hypertension, as well as HF with preserved ejection fraction (HFpEF) characterized by myocardial fibrosis, diastolic dysfunction, and pulmonary congestion, and die prematurely. We also found evidence that the absence of miR-29 triggers the up-regulation of its target, the master metabolic regulator PGC1α, which in turn generates profound alterations in mitochondrial biogenesis, leading to a pathological accumulation of small mitochondria in mutant animals that contribute to cardiac disease. Notably, we demonstrate that systemic hypertension and HFpEF caused by miR-29 deficiency can be rescued by PGC1α haploinsufficiency, which reduces cardiac mitochondrial accumulation and extends longevity of miR-29–mutant mice. In addition, PGC1α is overexpressed in hearts from patients with HF. Collectively, our findings demonstrate the in vivo role of miR-29 in cardiovascular homeostasis and unveil a novel miR-29/PGC1α regulatory circuitry of functional relevance for cell metabolism under normal and pathological conditions. To combat diseases, we first need to gain knowledge on how cells function at the molecular level to maintain normal physiology. One great scientific achievement of the last decade was the identification of thousands of small regulatory RNA molecules, called microRNAs. Strikingly, each microRNA has the potential to fine-tune the expression of hundreds of target genes depending on the spatiotemporal context. Therefore, defects in key microRNAs can contribute to the development of diseases. In the present work, we characterize the role for miR-29 in cardiac function in a mouse model. We found that mice deficient for miR-29 develop life-threatening cardiometabolic alterations that subsequently cause heart failure with diastolic dysfunction and systemic hypertension. We also demonstrate that these pathological phenotypes originate in part by the anomalous up-regulation of the transcriptional coactivator PGC1α, which can lead to mitochondrial hyperplasia in the heart. Genetic removal of one copy of PGC1α significantly attenuated the severity of the cardiovascular phenotype observed in miR-29–deficient mice. In addition, we show that PGC1α expression is misregulated in heart failure patients, suggesting that the implementation of miR-29 replacement therapy could potentially be used to treat these fatal pathologies.
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miR-29s function as tumor suppressors in gliomas by targeting TRAF4 and predict patient prognosis. Cell Death Dis 2018; 9:1078. [PMID: 30348972 PMCID: PMC6197255 DOI: 10.1038/s41419-018-1092-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/19/2018] [Accepted: 09/21/2018] [Indexed: 12/21/2022]
Abstract
Robust proliferation and apoptosis inhibition of tumor cells are responsible for the high mortality and poor outcome of patients with high-grade gliomas. miR-29a/b/c have been reported to be important suppressors in several human tumor types. However, their exact roles in gliomagenesis and their relevance to patient prognosis remain unclear. In this study, using 187 human glioma specimens and 20 nontumoral brain tissues, we demonstrated that the expression of miR-29a/b/c decreased progressively as the grade of glioma and the Ki-67 index increased. However, the expression of TRAF4, the functional target of miR-29a/b/c, exhibited the inverse trend, and its level was inversely correlated with the levels of miR-29a/b/c. A Kaplan–Meier analysis demonstrated that the miR-29a/b/c and TRAF4 levels were closely associated with patient survival even in patients with the same tumor grade and identical IDH gene status. A functional study verified that miR-29a/b/c induced apoptosis and suppressed the proliferation of glioma cells by directly targeting TRAF4. An investigation of the mechanism revealed that miR-29a/b/c promoted apoptosis through the TRAF4/AKT/MDM2 pathway in a p53-dependent manner, while miR-29a/b/c induced G1 arrest and inhibited tumor cell proliferation by blocking the phosphorylation of AKT and GSK-3β, and the expression of cyclin D1 and c-Myc. Furthermore, TRAF4-knockdown perfectly simulated the anti-glioma effects of miR-29a/b/c. These findings enrich our understanding of gliomagenesis, highlight the prognostic value of miR-29a/b/c and TRAF4, and imply their potential therapeutic roles in malignant gliomas.
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31
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Walker SE, Spencer GE, Necakov A, Carlone RL. Identification and Characterization of microRNAs during Retinoic Acid-Induced Regeneration of a Molluscan Central Nervous System. Int J Mol Sci 2018; 19:E2741. [PMID: 30217012 PMCID: PMC6163488 DOI: 10.3390/ijms19092741] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 09/06/2018] [Accepted: 09/08/2018] [Indexed: 12/11/2022] Open
Abstract
Retinoic acid (RA) is the biologically active metabolite of vitamin A and has become a well-established factor that induces neurite outgrowth and regeneration in both vertebrates and invertebrates. However, the underlying regulatory mechanisms that may mediate RA-induced neurite sprouting remain unclear. In the past decade, microRNAs have emerged as important regulators of nervous system development and regeneration, and have been shown to contribute to processes such as neurite sprouting. However, few studies have demonstrated the role of miRNAs in RA-induced neurite sprouting. By miRNA sequencing analysis, we identify 482 miRNAs in the regenerating central nervous system (CNS) of the mollusc Lymnaeastagnalis, 219 of which represent potentially novel miRNAs. Of the remaining conserved miRNAs, 38 show a statistically significant up- or downregulation in regenerating CNS as a result of RA treatment. We further characterized the expression of one neuronally-enriched miRNA upregulated by RA, miR-124. We demonstrate, for the first time, that miR-124 is expressed within the cell bodies and neurites of regenerating motorneurons. Moreover, we identify miR-124 expression within the growth cones of cultured ciliary motorneurons (pedal A), whereas expression in the growth cones of another class of respiratory motorneurons (right parietal A) was absent in vitro. These findings support our hypothesis that miRNAs are important regulators of retinoic acid-induced neuronal outgrowth and regeneration in regeneration-competent species.
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Affiliation(s)
- Sarah E Walker
- Department of Biological Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada.
| | - Gaynor E Spencer
- Department of Biological Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada.
| | - Aleksandar Necakov
- Department of Biological Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada.
| | - Robert L Carlone
- Department of Biological Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada.
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Valdeolivas A, Tichit L, Navarro C, Perrin S, Odelin G, Levy N, Cau P, Remy E, Baudot A. Random walk with restart on multiplex and heterogeneous biological networks. Bioinformatics 2018; 35:497-505. [DOI: 10.1093/bioinformatics/bty637] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 07/16/2018] [Indexed: 01/04/2023] Open
Affiliation(s)
- Alberto Valdeolivas
- Aix Marseille Univ, CNRS, Centrale Marseille, I2M, Marseille, France
- ProGeLife, Marseille
| | - Laurent Tichit
- Aix Marseille Univ, CNRS, Centrale Marseille, I2M, Marseille, France
| | - Claire Navarro
- ProGeLife, Marseille
- Aix Marseille Univ, INSERM, MMG, Marseille, France
| | - Sophie Perrin
- ProGeLife, Marseille
- Aix Marseille Univ, INSERM, MMG, Marseille, France
| | - Gaëlle Odelin
- ProGeLife, Marseille
- Aix Marseille Univ, INSERM, MMG, Marseille, France
| | - Nicolas Levy
- Aix Marseille Univ, INSERM, MMG, Marseille, France
| | - Pierre Cau
- ProGeLife, Marseille
- Aix Marseille Univ, INSERM, MMG, Marseille, France
| | - Elisabeth Remy
- Aix Marseille Univ, CNRS, Centrale Marseille, I2M, Marseille, France
| | - Anaïs Baudot
- Aix Marseille Univ, CNRS, Centrale Marseille, I2M, Marseille, France
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Hien TT, Garcia‐Vaz E, Stenkula KG, Sjögren J, Nilsson J, Gomez MF, Albinsson S. MicroRNA‐dependent regulation of KLF4 by glucose in vascular smooth muscle. J Cell Physiol 2018; 233:7195-7205. [DOI: 10.1002/jcp.26549] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 02/12/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Tran T. Hien
- Department of Experimental Medical ScienceLund UniversityLundSweden
| | - Eliana Garcia‐Vaz
- Department of Clinical Sciences in Malmö, Lund University Diabetes CentreLund UniversitySweden
| | | | - Johan Sjögren
- Department of Cardiothoracic SurgerySkåne University Hospital and Lund UniversityLundSweden
| | - Johan Nilsson
- Department of Cardiothoracic SurgerySkåne University Hospital and Lund UniversityLundSweden
| | - Maria F. Gomez
- Department of Clinical Sciences in Malmö, Lund University Diabetes CentreLund UniversitySweden
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Li Y, Li L, Qian Z, Lin B, Chen J, Luo Y, Qu J, Raj JU, Gou D. Phosphatidylinositol 3-Kinase-DNA Methyltransferase 1-miR-1281-Histone Deacetylase 4 Regulatory Axis Mediates Platelet-Derived Growth Factor-Induced Proliferation and Migration of Pulmonary Artery Smooth Muscle Cells. J Am Heart Assoc 2018; 7:e007572. [PMID: 29514810 PMCID: PMC5907547 DOI: 10.1161/jaha.117.007572] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 01/03/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Platelet-derived growth factor BB, a potent mitogen of pulmonary artery smooth muscle cells (PASMCs), has been implicated in pulmonary arterial remodeling, which is a key pathogenic feature of pulmonary arterial hypertension. Previous microRNA profiling in platelet-derived growth factor BB-treated PASMCs found a significantly downregulated microRNA, miR-1281, but it has not been associated with any cellular function, and we investigated the possibility. METHODS AND RESULTS Real-time quantitative reverse transcription-polymerase chain reaction assay proved that downregulation of miR-1281 was a conserved phenomenon in human and rat PASMCs. Overexpression and inhibition of miR-1281 in PASMCs promoted and suppressed, respectively, the cell proliferation and migration. Bioinformatic prediction and 3'-untranslated region reporter assay identified histone deacetylase 4 to be a direct target of miR-1281. Supporting this, proliferation and migration assay demonstrated the cellular function of histone deacetylase 4 is inversely correlated with that of miR-1281. Mechanistically, it is found that platelet-derived growth factor BB activates the phosphatidylinositol 3-kinase pathway, which then induces the expression of DNA methyltransferase 1, leading to enhanced methylation of a flanking CpG island and repressed miR-1281 expression. Finally, a reduced miR-1281 level was consistently identified in hypoxic PASMCs in vitro, in pulmonary arteries of rats with monocrotaline-induced pulmonary arterial hypertension, and in serum of patients with coronary heart disease-pulmonary arterial hypertension. These data suggest that there may be a diagnostic and therapeutic use for miR-1281. CONCLUSIONS Herein, we report a novel regulatory axis, phosphatidylinositol 3-kinase-DNA methyltransferase 1-miR-1281-histone deacetylase 4, integrating multiple epigenetic regulators that participate in platelet-derived growth factor BB-stimulated PASMC proliferation and migration and pulmonary vascular remodeling.
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MESH Headings
- Animals
- Becaplermin/pharmacology
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- DNA (Cytosine-5-)-Methyltransferase 1/metabolism
- Disease Models, Animal
- HEK293 Cells
- Histone Deacetylases/genetics
- Histone Deacetylases/metabolism
- Humans
- Hypertension, Pulmonary/enzymology
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/pathology
- Male
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Monocrotaline
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/enzymology
- Myocytes, Smooth Muscle/pathology
- Phosphatidylinositol 3-Kinase/metabolism
- Pulmonary Artery/enzymology
- Pulmonary Artery/pathology
- Rats, Sprague-Dawley
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Signal Transduction/drug effects
- Vascular Remodeling/drug effects
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Affiliation(s)
- Yanjiao Li
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China
| | - Li Li
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Zhengjiang Qian
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
- The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China
| | - Boya Lin
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Jidong Chen
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China
| | - Yixuan Luo
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China
| | - J Usha Raj
- Department of Pediatrics, University of Illinois at Chicago, IL
| | - Deming Gou
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
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35
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Boileau A, Lindsay ME, Michel JB, Devaux Y. Epigenetics in Ascending Thoracic Aortic Aneurysm and Dissection. AORTA (STAMFORD, CONN.) 2018; 6:1-12. [PMID: 30079931 PMCID: PMC6136679 DOI: 10.1055/s-0038-1639610] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Thoracic aortic aneurysm (TAA) is an asymptomatic and progressive dilatation of the thoracic aorta. Ascending aortic dissection (AAD) is an acute intraparietal tear, occurring or not on a pre-existing dilatation. AAD is a condition associated with a poor prognosis and a high mortality rate. TAA and AAD share common etiology as monogenic diseases linked to transforming growth factor β signaling pathway, extracellular matrix defect, or smooth muscle cell protein mutations. They feature a complex pathogenesis including loss of smooth muscle cells, altered phenotype, and extracellular matrix degradation in aortic media layer. A better knowledge of the mechanisms responsible for TAA progression and AAD occurrence is needed to improve healthcare, nowadays mainly consisting of aortic open surgery or endovascular replacement. Recent breakthrough discoveries allowed a deeper characterization of the mechanisms of gene regulation. Since alteration in gene expression has been linked to TAA and AAD, it is conceivable that a better knowledge of the causes of this alteration may lead to novel theranostic approaches. In this review article, the authors will focus on epigenetic regulation of gene expression, including the role of histone methylation and acetylation, deoxyribonucleic acid methylation, and noncoding ribonucleic acids in the pathogenesis of TAA and AAD. They will provide a translational perspective, presenting recent data that motivate the evaluation of the potential of epigenetics to diagnose TAA and prevent AAD.
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Affiliation(s)
- Adeline Boileau
- Cardiovascular Research Unit, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Mark E. Lindsay
- Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jean-Baptiste Michel
- UMRS 1148, INSERM, Paris 7-Denis Diderot University, Hôpital Xavier Bichat, Paris, France
| | - Yvan Devaux
- Cardiovascular Research Unit, Luxembourg Institute of Health, Luxembourg, Luxembourg
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36
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Bolte C, Whitsett JA, Kalin TV, Kalinichenko VV. Transcription Factors Regulating Embryonic Development of Pulmonary Vasculature. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2018; 228:1-20. [PMID: 29288383 DOI: 10.1007/978-3-319-68483-3_1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Lung morphogenesis is a highly orchestrated process beginning with the appearance of lung buds on approximately embryonic day 9.5 in the mouse. Endodermally derived epithelial cells of the primitive lung buds undergo branching morphogenesis to generate the tree-like network of epithelial-lined tubules. The pulmonary vasculature develops in close proximity to epithelial progenitor cells in a process that is regulated by interactions between the developing epithelium and underlying mesenchyme. Studies in transgenic and knockout mouse models demonstrate that normal lung morphogenesis requires coordinated interactions between cells lining the tubules, which end in peripheral saccules, juxtaposed to an extensive network of capillaries. Multiple growth factors, microRNAs, transcription factors, and their associated signaling cascades regulate cellular proliferation, migration, survival, and differentiation during formation of the peripheral lung. Dysregulation of signaling events caused by gene mutations, teratogens, or premature birth causes severe congenital and acquired lung diseases in which normal alveolar architecture and the pulmonary capillary network are disrupted. Herein, we review scientific progress regarding signaling and transcriptional mechanisms regulating the development of pulmonary vasculature during lung morphogenesis.
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Affiliation(s)
- Craig Bolte
- Center for Lung Regenerative Medicine, Perinatal Institute, Cincinnati Children's Research Foundation, Cincinnati, OH, USA.,Division of Pulmonary Biology, Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Jeffrey A Whitsett
- Division of Pulmonary Biology, Cincinnati Children's Research Foundation, Cincinnati, OH, USA.,Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Tanya V Kalin
- Division of Pulmonary Biology, Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Vladimir V Kalinichenko
- Center for Lung Regenerative Medicine, Perinatal Institute, Cincinnati Children's Research Foundation, Cincinnati, OH, USA. .,Division of Pulmonary Biology, Cincinnati Children's Research Foundation, Cincinnati, OH, USA. .,Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Research Foundation, Cincinnati, OH, USA.
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37
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Xie T, Liang J, Geng Y, Liu N, Kurkciyan A, Kulur V, Leng D, Deng N, Liu Z, Song J, Chen P, Noble PW, Jiang D. MicroRNA-29c Prevents Pulmonary Fibrosis by Regulating Epithelial Cell Renewal and Apoptosis. Am J Respir Cell Mol Biol 2017; 57:721-732. [PMID: 28799781 DOI: 10.1165/rcmb.2017-0133oc] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Successful repair and renewal of alveolar epithelial cells (AECs) are critical in prohibiting the accumulation of myofibroblasts in pulmonary fibrogenesis. MicroRNAs (miRNAs) are multifocal regulators involved in lung injury and repair. However, the contribution of miRNAs to AEC2 renewal and apoptosis is incompletely understood. We report that miRNA-29c (miR-29c) expression is lower in AEC2s of individuals with idiopathic pulmonary fibrosis than in healthy lungs. Epithelial cells overexpressing miR-29c show higher proliferative rates and viability. miR-29c protects epithelial cells from apoptosis by targeting forkhead box O3a (Foxo3a). Both overexpression of miR-29c conventionally and AEC2s specifically lead to less fibrosis and better recovery in vivo. Furthermore, deficiency of miR-29c in AEC2s results in higher apoptosis and reduced epithelial renewal. Interestingly, a gene network including a subset of apoptotic genes was coregulated by both Toll-like receptor 4 and miR-29c. Taken together, miR-29c maintains epithelial integrity and promotes recovery from lung injury, thereby attenuating lung fibrosis in mice.
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Affiliation(s)
- Ting Xie
- 1 Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Jiurong Liang
- 1 Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Yan Geng
- 1 Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Ningshan Liu
- 1 Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Adrianne Kurkciyan
- 1 Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Vrishika Kulur
- 1 Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Dong Leng
- 2 Clinical Laboratory and Laboratory Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Nan Deng
- 3 Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California; and
| | - Zhenqiu Liu
- 3 Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California; and
| | - Jianbo Song
- 4 Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Peter Chen
- 1 Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Paul W Noble
- 1 Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Dianhua Jiang
- 1 Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California
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38
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Felden B, Paillard L. When eukaryotes and prokaryotes look alike: the case of regulatory RNAs. FEMS Microbiol Rev 2017; 41:624-639. [PMID: 28981746 DOI: 10.1093/femsre/fux038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 06/22/2017] [Indexed: 12/26/2022] Open
Abstract
The discovery that all living entities express many RNAs beyond mRNAs, tRNAs and rRNAs has been a surprise in the past two decades. In fact, regulatory RNAs (regRNAs) are plentiful, and we report stunning parallels between their mechanisms and functions in prokaryotes and eukaryotes. For instance, prokaryotic CRISPR (clustered regularly interspaced short palindromic repeats) defense systems are functional analogs to eukaryotic RNA interference processes that preserve the cell against foreign nucleic acid elements. Regulatory RNAs shape the genome in many ways: by controlling mobile element transposition in both domains, via regulation of plasmid counts in prokaryotes, or by directing epigenetic modifications of DNA and associated proteins in eukaryotes. RegRNAs control gene expression extensively at transcriptional and post-transcriptional levels, with crucial roles in fine-tuning cell environmental responses, including intercellular interactions. Although the lengths, structures and outcomes of the regRNAs in all life kingdoms are disparate, they act through similar patterns: by guiding effectors to target molecules or by sequestering macromolecules to hamper their functions. In addition, their biogenesis processes have a lot in common. This unifying vision of regRNAs in all living cells from bacteria to humans points to the possibility of fruitful exchanges between fundamental and applied research in both domains.
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Affiliation(s)
- Brice Felden
- Inserm U1230 Biochimie Pharmaceutique, Université de Rennes 1, 35043 Rennes, France.,Biosit, Université de Rennes 1, 35043 Rennes, France
| | - Luc Paillard
- Biosit, Université de Rennes 1, 35043 Rennes, France.,Centre National de la Recherche Scientifique UMR 6290, Institut de Génétique et Développement de Rennes, 35043 Rennes, France
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39
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Abstract
Regulation of body growth remains a fascinating and unresolved biological mystery. One key component of body growth is skeletal and longitudinal bone growth. Children grow taller because their bones grew longer, and the predominant driver of longitudinal bone growth is a cartilaginous structure found near the ends of long bone named the growth plate. Numerous recent studies have started to unveil the importance of microRNAs in regulation of growth plate functions, therefore contributing to regulation of linear growth. In addition to longitudinal growth, other organs in our body need to increase in size and cell number as we grow, and the regulation of organ growth involves both systemic factors like hormones; and other intrinsic mechanisms, which we are just beginning to understand. This review aims to summarize some recent important findings on how microRNAs are involved in both of these processes: the regulation of longitudinal bone growth, and the regulation of organs and overall body growth.
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Affiliation(s)
- Julian C Lui
- Section on Growth and Development, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, CRC Rm 1-3330, 10 Center Drive, MSC-1103, Bethesda, MD, 20892-1103, United States.
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40
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Regulatory crosstalk between KLF5, miR-29a and Fbw7/CDC4 cooperatively promotes atherosclerotic development. Biochim Biophys Acta Mol Basis Dis 2017; 1864:374-386. [PMID: 29074464 DOI: 10.1016/j.bbadis.2017.10.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 10/01/2017] [Accepted: 10/16/2017] [Indexed: 12/13/2022]
Abstract
Atherogenesis is a chronic inflammatory process that involves complex interactions between endothelial dysfunction, lipid deposition and vascular smooth-muscle cell (VSMC) proliferation. However, the molecular mechanism is still unclear. We found that a pro-atherosclerotic factor (oxLDL) induced the expression of Krüppel-like factor 5 (KLF5), which in turn increased miR-29a expression levels. The increased miR-29a was retained within HASMCs and down-regulated Fbw7/CDC4 expression by targeting the 3´UTR of Fbw7/CDC4, subsequently increasing KLF5 stability by reducing the Fbw7/CDC4-dependent ubiquitination of KLF5, forming a positive feedback loop to enhance VSMC proliferation and promote atherogenesis. These results indicate a potentially important role for the oxLDL-activated feedback mechanism in VSMC proliferation and atherogenesis. Suppression of miR-29a may be an effective way to attenuate atherosclerosis. In conclusion, our data are the first to reveal that the regulatory crosstalk between KLF5, miR-29a, and Fbw7/CDC4 cooperatively promotes atherosclerotic development.
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41
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Wu X, Serna VA, Thomas J, Qiang W, Blumenfeld ML, Kurita T. Subtype-Specific Tumor-Associated Fibroblasts Contribute to the Pathogenesis of Uterine Leiomyoma. Cancer Res 2017; 77:6891-6901. [PMID: 29055020 DOI: 10.1158/0008-5472.can-17-1744] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/18/2017] [Accepted: 10/16/2017] [Indexed: 12/11/2022]
Abstract
Recent genomic studies have identified subtypes of uterine leiomyoma (LM) with distinctive genetic alterations. Here, we report the elucidation of the biological characteristics of the two most prevalent uterine leiomyoma subtypes, MED12-mutant (MED12-LM) and HMGA2-overexpressing (HMGA2-LM) uterine leiomyomas. Because each tumor carries only one genetic alteration, both subtypes are considered to be monoclonal. Approximately 90% of cells in HMGA2-uterine leiomyoma were smooth muscle cells (SMC) with HMGA2 overexpression. In contrast, MED12-LM consisted of similar numbers of SMC and non-SMC, which were mostly tumor-associated fibroblasts (TAF). Paradoxically, TAF carried no mutations in MED12, suggesting an interaction between SMC and TAF to coordinate their growth. The higher amount of extracellular matrix in MED12-LM than HMGA2-LM was partially due to the high concentration of collagen-producing TAF. SMC growth in a xenograft assay was driven by progesterone in both uterine leiomyoma subtypes. In contrast, TAF in MED12-LM proliferated in response to estradiol, whereas progesterone had no effect. The high concentration of estrogen-responsive TAF in MED12-LM explains the inconsistent discoveries between in vivo and in vitro studies on the mitogenic effect of estrogen and raises questions regarding the accuracy of previous studies utilizing MED12-LM cell culture. In addition, the differential effects of estradiol and progesterone on these uterine leiomyoma subtypes emphasize the importance of subtypes and genotypes in designing nonsurgical therapeutic strategies for uterine leiomyoma. Cancer Res; 77(24); 6891-901. ©2017 AACR.
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Affiliation(s)
- Xin Wu
- Department of Cancer Biology and Genetics, The Comprehensive Cancer Center, Ohio State University, Columbus, Ohio
| | - Vanida A Serna
- Department of Cancer Biology and Genetics, The Comprehensive Cancer Center, Ohio State University, Columbus, Ohio
| | - Justin Thomas
- Department of Cancer Biology and Genetics, The Comprehensive Cancer Center, Ohio State University, Columbus, Ohio
| | - Wenan Qiang
- Center for Developmental Therapeutics, Chemistry of Life Processes Institute, Northwestern University, Evanston, Illinois.,Division of Reproductive Biology Research, Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | | | - Takeshi Kurita
- Department of Cancer Biology and Genetics, The Comprehensive Cancer Center, Ohio State University, Columbus, Ohio.
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42
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miR-29a/b/c function as invasion suppressors for gliomas by targeting CDC42 and predict the prognosis of patients. Br J Cancer 2017; 117:1036-1047. [PMID: 28787434 PMCID: PMC5625669 DOI: 10.1038/bjc.2017.255] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 06/15/2017] [Accepted: 07/11/2017] [Indexed: 12/23/2022] Open
Abstract
Background: The lethality and poor outcome of high-grade gliomas result from the tumour relentless invasion. miR-29a/b/c downexpressions contribute to several human tumourigenesis. However, their relevance to prognosis and invasion in gliomas remains unclear. Methods: Relationships of miR-29a/b/c and CDC42 expressions to grade and survival-time in 147 human gliomas were analysed by in situ hybridisation and immunohistochemistry. Dual-luciferase reporter assay was used to identify CDC42 as a target of miR-29a/b/c. Underlining mechanisms by which miR-29a/b/c inhibited glioma cell migration and invasion were studied by in vitro and in vivo assays. Results: miR-29a/b/c expressions were inversely correlated with glioma grades, but positively correlated with patients’ survival. Two distinct subgroups of grade I–IV glioma patients with different prognoses were identified according to miR-29a/b/c expressions. miR-29a/b/c overexpressions suppressed glioma cell migration and invasion through targeting CDC42 and subsequently decreasing phosphorylated PAK1/2/3, LIMK1/2 and cofilin, the pivotal downstream effectors of CDC42. Moreover, CDC42 expression was positively correlated with glioma grades, but inversely correlated with miR-29a/b/c expressions and patients’ survival. In glioblastoma cell lines, CDC42-knockdown could mimic the anti-tumour effects of miR-29a/b/c. Conclusions: miR-29a/b/c are important tumour suppressors and novel prognostic biomarkers of gliomas, and miR-29a/b/c and CDC42 are potential therapeutic candidates for malignant gliomas.
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43
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Qian Z, Li Y, Chen J, Li X, Gou D. miR-4632 mediates PDGF-BB-induced proliferation and antiapoptosis of human pulmonary artery smooth muscle cells via targeting cJUN. Am J Physiol Cell Physiol 2017; 313:C380-C391. [PMID: 28701355 DOI: 10.1152/ajpcell.00061.2017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 07/10/2017] [Accepted: 07/10/2017] [Indexed: 12/15/2022]
Abstract
MicroRNAs (miRNAs) can regulate the proliferative status of pulmonary artery smooth muscle cells (PASMCs), which is a core factor modulating pulmonary vascular remodeling diseases, such as atherosclerosis and pulmonary arterial hypertension (PAH). Our previous work has shown that miR-4632, a rarely reported miRNA, is significantly downregulated in platelet-derived growth factor (PDGF)-BB-stimulated human pulmonary artery smooth muscle cells (HPASMCs), yet its cell function and the underlying molecular mechanisms remain to be elucidated. Here, we find that miR-4632 is highly expressed in HPASMCs and its expression significantly decreased in response to different stimuli. Functional studies revealed that miR-4632 inhibited proliferation and promoted apoptosis of HPASMCs but had no effects on cell contraction and migration. Furthermore, the cJUN was identified as a direct target gene of miR-4632, while knockdown of cJUN was necessary for miR-4632-mediated HPASMC proliferation and apoptosis. In addition, the downregulation of miR-4632 by PDGF-BB was found to associate with histone deacetylation through the activation of PDGF receptor/phosphatidylinositol 3'-kinase/histone deacetylase 4 signaling. Finally, the expression of miR-4632 was reduced in the serum of patients with PAH. Overall, our results suggest that miR-4632 plays an important role in regulating HPASMC proliferation and apoptosis by suppression of cJUN, providing a novel therapeutic miRNA candidate for the treatment of pulmonary vascular remodeling diseases. It also implies that serum miR-4632 has the potential to serve as a circulating biomarker for PAH diagnosis.
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Affiliation(s)
- Zhengjiang Qian
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong China; .,The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China; and
| | - Yanjiao Li
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China
| | - Jidong Chen
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China
| | - Xiang Li
- The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China; and
| | - Deming Gou
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong China
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44
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Durrani-Kolarik S, Pool CA, Gray A, Heyob KM, Cismowski MJ, Pryhuber G, Lee LJ, Yang Z, Tipple TE, Rogers LK. miR-29b supplementation decreases expression of matrix proteins and improves alveolarization in mice exposed to maternal inflammation and neonatal hyperoxia. Am J Physiol Lung Cell Mol Physiol 2017; 313:L339-L349. [PMID: 28473324 DOI: 10.1152/ajplung.00273.2016] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 04/28/2017] [Accepted: 04/30/2017] [Indexed: 02/06/2023] Open
Abstract
Even with advances in the care of preterm infants, chronic lung disease or bronchopulmonary dysplasia (BPD) continues to be a significant pulmonary complication. Among those diagnosed with BPD, a subset of infants develop severe BPD with disproportionate pulmonary morbidities. In addition to decreased alveolarization, these infants develop obstructive and/or restrictive lung function due to increases in or dysregulation of extracellular matrix proteins. Analyses of plasma obtained from preterm infants during the first week of life indicate that circulating miR-29b is suppressed in infants that subsequently develop BPD and that decreased circulating miR-29b is inversely correlated with BPD severity. Our mouse model mimics the pathophysiology observed in infants with severe BPD, and we have previously reported decreased pulmonary miR-29b expression in this model. The current studies tested the hypothesis that adeno-associated 9 (AAV9)-mediated restoration of miR-29b in the developing lung will improve lung alveolarization and minimize the deleterious changes in matrix deposition. Pregnant C3H/HeN mice received an intraperitoneal LPS injection on embryonic day 16 and newborn pups were exposed to 85% oxygen from birth to 14 days of life. On postnatal day 3, AAV9-miR-29b or AAV9-control was administered intranasally. Mouse lung tissues were then analyzed for changes in miR-29 expression, alveolarization, and matrix protein levels and localization. Although only modest improvements in alveolarization were detected in the AAV9-miR29b-treated mice at postnatal day 28, treatment completely attenuated defects in matrix protein expression and localization. Our data suggest that miR-29b restoration may be one component of a novel therapeutic strategy to treat or prevent severe BPD in prematurely born infants.
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Affiliation(s)
- Shaheen Durrani-Kolarik
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio.,Department of Pediatrics, The Ohio State University, Columbus, Ohio
| | - Caylie A Pool
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Ashley Gray
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Kathryn M Heyob
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Mary J Cismowski
- Center for Cardiovascular Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio.,Department of Pediatrics, The Ohio State University, Columbus, Ohio
| | - Gloria Pryhuber
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - L James Lee
- The Center for Affordable Nanoengineering of Polymeric Biomedical Devices, The Ohio State University, Columbus, Ohio
| | - Zhaogang Yang
- The Center for Affordable Nanoengineering of Polymeric Biomedical Devices, The Ohio State University, Columbus, Ohio
| | - Trent E Tipple
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Lynette K Rogers
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio; .,Department of Pediatrics, The Ohio State University, Columbus, Ohio
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Ripa R, Dolfi L, Terrigno M, Pandolfini L, Savino A, Arcucci V, Groth M, Terzibasi Tozzini E, Baumgart M, Cellerino A. MicroRNA miR-29 controls a compensatory response to limit neuronal iron accumulation during adult life and aging. BMC Biol 2017; 15:9. [PMID: 28193224 PMCID: PMC5304403 DOI: 10.1186/s12915-017-0354-x] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/25/2017] [Indexed: 02/07/2023] Open
Abstract
Background A widespread modulation of gene expression occurs in the aging brain, but little is known as to the upstream drivers of these changes. MicroRNAs emerged as fine regulators of gene expression in many biological contexts and they are modulated by age. MicroRNAs may therefore be part of the upstream drivers of the global gene expression modulation correlated with aging and aging-related phenotypes. Results Here, we show that microRNA-29 (miR-29) is induced during aging in short-lived turquoise killifish brain and genetic antagonism of its function induces a gene-expression signature typical of aging. Mechanicistically, we identified Ireb2 (a master gene for intracellular iron delivery that encodes for IRP2 protein), as a novel miR-29 target. MiR-29 is induced by iron loading and, in turn, it reduces IRP2 expression in vivo, therefore limiting intracellular iron delivery in neurons. Genetically modified fish with neuro-specific miR-29 deficiency exhibit increased levels of IRP2 and transferrin receptor, increased iron content, and oxidative stress. Conclusions Our results demonstrate that age-dependent miR-29 upregulation is an adaptive mechanism that counteracts the expression of some aging-related phenotypes and its anti-aging activity is primarily exerted by regulating intracellular iron homeostasis limiting excessive iron-exposure in neurons. Electronic supplementary material The online version of this article (doi:10.1186/s12915-017-0354-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Roberto Ripa
- Scuola Normale Superiore, Laboratory of Biology (Bio@SNS), c/o Istituto di Biofisica del CNR, via 17 Moruzzi 1, 56124, Pisa, Italy
| | - Luca Dolfi
- Scuola Normale Superiore, Laboratory of Biology (Bio@SNS), c/o Istituto di Biofisica del CNR, via 17 Moruzzi 1, 56124, Pisa, Italy
| | - Marco Terrigno
- Scuola Normale Superiore, Laboratory of Biology (Bio@SNS), c/o Istituto di Biofisica del CNR, via 17 Moruzzi 1, 56124, Pisa, Italy
| | - Luca Pandolfini
- Wellcome Trust/Cancer Research UK Gurdon Institute, Tennis Court Road, Cambridge, CB2 1QN, UK
| | | | - Valeria Arcucci
- Scuola Normale Superiore, Laboratory of Biology (Bio@SNS), c/o Istituto di Biofisica del CNR, via 17 Moruzzi 1, 56124, Pisa, Italy
| | - Marco Groth
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Beutenbergstr. 11, 07745, Jena, Germany
| | - Eva Terzibasi Tozzini
- Scuola Normale Superiore, Laboratory of Biology (Bio@SNS), c/o Istituto di Biofisica del CNR, via 17 Moruzzi 1, 56124, Pisa, Italy
| | - Mario Baumgart
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Beutenbergstr. 11, 07745, Jena, Germany
| | - Alessandro Cellerino
- Scuola Normale Superiore, Laboratory of Biology (Bio@SNS), c/o Istituto di Biofisica del CNR, via 17 Moruzzi 1, 56124, Pisa, Italy. .,Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Beutenbergstr. 11, 07745, Jena, Germany.
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Mundy-Bosse BL, Scoville SD, Chen L, McConnell K, Mao HC, Ahmed EH, Zorko N, Harvey S, Cole J, Zhang X, Costinean S, Croce CM, Larkin K, Byrd JC, Vasu S, Blum W, Yu J, Freud AG, Caligiuri MA. MicroRNA-29b mediates altered innate immune development in acute leukemia. J Clin Invest 2016; 126:4404-4416. [PMID: 27775550 DOI: 10.1172/jci85413] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 09/15/2016] [Indexed: 12/12/2022] Open
Abstract
Natural killer (NK) cells can have potent antileukemic activity following haplo-mismatched, T cell-depleted stem cell transplantations for the treatment of acute myeloid leukemia (AML), but they are not successful in eradicating de novo AML. Here, we have used a mouse model of de novo AML to elucidate the mechanisms by which AML evades NK cell surveillance. NK cells in leukemic mice displayed a marked reduction in the cytolytic granules perforin and granzyme B. Further, as AML progressed, we noted the selective loss of an immature subset of NK cells in leukemic mice and in AML patients. This absence was not due to elimination by cell death or selective reduction in proliferation, but rather to the result of a block in NK cell differentiation. Indeed, NK cells from leukemic mice and humans with AML showed lower levels of TBET and EOMES, transcription factors that are critical for terminal NK cell differentiation. Further, the microRNA miR-29b, a regulator of T-bet and EOMES, was elevated in leukemic NK cells. Finally, deletion of miR-29b in NK cells reversed the depletion of this NK cell subset in leukemic mice. These results indicate that leukemic evasion of NK cell surveillance occurs through miR-mediated dysregulation of lymphocyte development, representing an additional mechanism of immune escape in cancer.
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MESH Headings
- Animals
- Cell Line, Tumor
- Granzymes/genetics
- Granzymes/immunology
- Humans
- Immunity, Innate
- Killer Cells, Natural/immunology
- Killer Cells, Natural/pathology
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/immunology
- Leukemia, Myeloid, Acute/pathology
- Mice
- Mice, Transgenic
- MicroRNAs/genetics
- MicroRNAs/immunology
- Neoplasm Proteins/genetics
- Neoplasm Proteins/immunology
- Perforin/genetics
- Perforin/immunology
- RNA, Neoplasm/genetics
- RNA, Neoplasm/immunology
- T-Box Domain Proteins/genetics
- T-Box Domain Proteins/immunology
- Tumor Escape
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Disruption of a miR-29 binding site leading toCOL4A1upregulation causes pontine autosomal dominant microangiopathy with leukoencephalopathy. Ann Neurol 2016; 80:741-753. [DOI: 10.1002/ana.24782] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/22/2016] [Accepted: 09/22/2016] [Indexed: 12/14/2022]
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48
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The MicroRNA 29 Family Promotes Type II Cell Differentiation in Developing Lung. Mol Cell Biol 2016; 36:2141. [PMID: 27215389 DOI: 10.1128/mcb.00096-16] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 05/16/2016] [Indexed: 12/16/2022] Open
Abstract
Lung alveolar type II cells uniquely synthesize surfactant, a developmentally regulated lipoprotein that is essential for breathing. Expression of the gene (SFTPA) encoding the major surfactant protein, SP-A, in midgestation human fetal lung (HFL) is dramatically induced by cyclic AMP (cAMP). cAMP induction of SP-A expression is repressed by transforming growth factor β (TGF-β) and by hypoxia. In this study, we found that expression of the microRNA 29 (miR-29) family was significantly upregulated in epithelial cells isolated from mouse fetal lung during late gestation and in epithelial cells isolated from HFL explants during type II cell differentiation in culture. miR-29 expression in cultured HFL epithelial cells was increased by cAMP and inhibited by hypoxia, whereas the miR-29 target, TGF-β2, was coordinately decreased. Knockdown of the miR-29 family in cultured HFL type II cells blocked cAMP-induced SP-A expression and accumulation of surfactant-containing lamellar bodies, suggesting their physiological relevance. This occurred through derepression of TGF-β signaling. Notably, cAMP increased binding of endogenous thyroid transcription factor 1 (TTF-1/Nkx2.1) to the miR-29ab1 promoter in HFL type II cells, and TTF-1 increased miR-29ab1 promoter-driven luciferase activity in cotransfection assays. Together, these findings identify miR-29 family members as TTF-1-driven mediators of SP-A expression and type II cell differentiation through repression of TGF-β signaling.
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49
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Sfera A, Osorio C, Inderias L, Cummings M. The Ticking of the Epigenetic Clock: Antipsychotic Drugs in Old Age. Front Endocrinol (Lausanne) 2016; 7:122. [PMID: 27630617 PMCID: PMC5005952 DOI: 10.3389/fendo.2016.00122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 08/23/2016] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Exposed to antipsychotic drugs (APDs), older individuals with dementing illness are at risk of cerebrovascular adverse effects (CVAE), including sudden death. Transient microvascular dysfunctions are known to occur in younger persons exposed to APDs; however, they seldom progress to CVAE, suggesting that APDs alone are insufficient for engendering this untoward effect. It is, therefore, believed that a preexistent microvascular damage is necessary for CVAE to take place, but the exact nature of this lesion remains unclear. CNS small vessel disease (SVD) is a well-known age-related risk factor for strokes, dementia, and sudden death, which may constitute the initial CVAE-predisposing pathology. Therefore, we propose the two strikes CVAE paradigm, in which SVD represents the first strike, while exposure to APDs, the second. In this model, both strikes must be present for CVAE to take place, and the neuroimaging load of white matter hyperintensities may be directly proportional with the CVAE risk. To investigate this hypothesis at the molecular level, we focused on a seemingly unrelated phenomenon: both APDs and SVD were found protective against a similar repertoire of cancers and their spread to the brain (1-4). Since microRNA-29 has shown efficacy against the same malignancies and has been associated with small vessels pathology, we narrowed our search down to this miR, hypothesizing that the APDs mechanism of action includes miR-29 upregulation, which in turn facilitates the development of SVD. AIM To assess whether miR-29 can be utilized as a peripheral blood biomarker for SVD and CVAE risk. METHOD We conducted a search of experimentally verified miR-29 target genes utilizing the public domain tools miRanda, RNA22 and Weizemann Institute of Science miRNA Analysis. We identified in total 67 experimentally verified target genes for miR-29 family, 18 of which correlate with microvascular integrity and may be relevant for CVAE. CONCLUSION Upregulated microRNA-29 silences the expression of 18 genes connected with capillary stability, engendering a major vulnerability for SVD (first strike) which in turn increases the risk for CVAE after exposure to APDs (second strike).
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Affiliation(s)
- Adonis Sfera
- Psychiatry, Patton State Hospital, Patton, CA, USA
- *Correspondence: Adonis Sfera,
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50
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Jin HY, Xiao C. MicroRNA Mechanisms of Action: What have We Learned from Mice? Front Genet 2015; 6:328. [PMID: 26635864 PMCID: PMC4644800 DOI: 10.3389/fgene.2015.00328] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 10/22/2015] [Indexed: 12/12/2022] Open
Affiliation(s)
- Hyun Yong Jin
- Department of Immunology and Microbial Science, The Scripps Research Institute La Jolla, CA, USA ; Kellogg School of Science and Technology, The Scripps Research Institute La Jolla, CA, USA
| | - Changchun Xiao
- Department of Immunology and Microbial Science, The Scripps Research Institute La Jolla, CA, USA
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