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Zhou K, Li W, Chen L, Chen S, Liu M, Yang Z, Mao Z, Yu W. Highly homologous miR-135a and miR-135b converting non-small cell lung cancer from suppression to progression via enhancer switching. Hum Mol Genet 2024; 33:1356-1366. [PMID: 38723288 DOI: 10.1093/hmg/ddae068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/27/2024] [Indexed: 07/24/2024] Open
Abstract
microRNAs (miRNAs) are short non-coding RNAs that have been increasingly recognized for their significant roles in the progression of cancer. Distinct miRNAs exhibit diverse functions attributed to variations in their sequences. As a result of possessing highly homologous seed sequences, these miRNAs target overlapping or similar gene sets, thus performing analogous roles. However, different from this sight, our study discovered that miR-135a-5p and miR-135b-5p, despite differing by only one nucleotide, exhibit distinct functional roles. Using non-small cell lung cancer (NSCLC) as a paradigm, our findings unveiled the downregulation of miR-135a-5p and upregulation of miR-135b-5p within NSCLC through TCGA database. Consequently, we further investigated their functional differences in A549 cells. Overexpression of miR-135b-5p enhanced the proliferation and migration capabilities of A549 cells, whereas miR-135a-5p transfection exhibited the opposite effect. We demonstrated that the activation of specific enhancers serves as a crucial mechanism underlying the disparate functions exerted by miR-135a-5p and miR-135b-5p in the context of NSCLC, consequently instigating a shift from inhibition to activation in NSCLC progression. Finally, we validated through animal experiments that miR-135b-5p promoted tumor progression, while miR-135a-5p exerted inhibitory effects on NSCLC development. This study offers a novel perspective for researchers to elucidate functional disparities exhibited by highly homologous miRNAs (miR-135a-5p and miR-135b-5p) in the context of NSCLC, along with the transition from inhibitory to progressive states in NSCLC. This study provides a solid foundation for future investigations into the functional roles of highly homologous miRNAs in pathological situation.
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Affiliation(s)
- Kaicheng Zhou
- Institutes of Biomedical Sciences, Fudan University, 130 Dong'an Road, Xuhui District, Shanghai 200032, China
| | - Wenxuan Li
- Institutes of Biomedical Sciences, Fudan University, 130 Dong'an Road, Xuhui District, Shanghai 200032, China
| | - Lu Chen
- Institutes of Biomedical Sciences, Fudan University, 130 Dong'an Road, Xuhui District, Shanghai 200032, China
| | - Siyue Chen
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, Shanghai 200032, China
- Shanghai Key Laboratory of Organ Transplantation, 180 Fenglin Road, Xuhui District, Shanghai 200032, China
| | - Mengxing Liu
- Institutes of Biomedical Sciences, Fudan University, 130 Dong'an Road, Xuhui District, Shanghai 200032, China
| | - Zhicong Yang
- Institutes of Biomedical Sciences, Fudan University, 130 Dong'an Road, Xuhui District, Shanghai 200032, China
| | - Zhanrui Mao
- Institutes of Biomedical Sciences, Fudan University, 130 Dong'an Road, Xuhui District, Shanghai 200032, China
| | - Wenqiang Yu
- Institutes of Biomedical Sciences, Fudan University, 130 Dong'an Road, Xuhui District, Shanghai 200032, China
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2
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Abdelmaksoud NM, Al-Noshokaty TM, Abdelhamid R, Abdellatif N, Mansour A, Mohamed R, Mohamed AH, Khalil NAE, Abdelhamid SS, Mohsen A, Abdelaal H, Tawfik A, Elshaer SS. Deciphering the role of MicroRNAs in diabetic nephropathy: Regulatory mechanisms and molecular insights. Pathol Res Pract 2024; 256:155237. [PMID: 38492358 DOI: 10.1016/j.prp.2024.155237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/22/2024] [Accepted: 03/02/2024] [Indexed: 03/18/2024]
Abstract
A serious consequence of diabetes mellitus, diabetic nephropathy (DN) which causes gradual damage to the kidneys. Dietary changes, blood pressure control, glucose control, and hyperlipidemia are all important components of DN management. New research, however, points to microRNAs (miRNAs) as having a pivotal role in DN pathogenesis. Miniature non-coding RNA molecules such as miRNAs control gene expression and impact several biological processes. The canonical and non-canonical routes of miRNA biogenesis are discussed in this article. In addition, several important signaling pathways are examined in the study of miRNA regulation in DN. A deeper knowledge of these regulatory mechanisms would allow for a better understanding of the molecular basis of DN and the development of innovative therapeutic strategies. Finally, miRNAs show tremendous potential as DN diagnostic biomarkers and treatment targets, opening up promising avenues for further study and potential clinical use.
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Affiliation(s)
- Nourhan M Abdelmaksoud
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Tohada M Al-Noshokaty
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt.
| | - Rehab Abdelhamid
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Nourhan Abdellatif
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Abdallah Mansour
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Reem Mohamed
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Asmaa Hamouda Mohamed
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Nada Abd Elatif Khalil
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Sara Sobhy Abdelhamid
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Alaa Mohsen
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Heba Abdelaal
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Ahmed Tawfik
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Shereen Saeid Elshaer
- Department of Biochemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt; Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr city, Cairo 11754, Egypt.
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3
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Yu T, Ji Y, Cui X, Liang N, Wu S, Xiang C, Li Y, Tao H, Xie Y, Zuo H, Wang W, Khan N, Ullah K, Xu F, Zhang Y, Lin C. Novel Pathogenic Mutation of P209L in TRPC6 Gene Causes Adult Focal Segmental Glomerulosclerosis. Biochem Genet 2024:10.1007/s10528-023-10651-y. [PMID: 38315264 DOI: 10.1007/s10528-023-10651-y] [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: 06/24/2023] [Accepted: 12/27/2023] [Indexed: 02/07/2024]
Abstract
Focal segmental glomerulosclerosis (FSGS) is a leading kidney disease, clinically associated with proteinuria and progressive renal failure. The occurrence of this disease is partly related to gene mutations. We describe a single affected family member who presented with FSGS. We used high-throughput sequencing, sanger sequencing to identify the pathogenic mutations, and a systems genetics analysis in the BXD mice was conducted to explore the genetic regulatory mechanisms of pathogenic genes in the development of FSGS. We identified high urinary protein (++++) and creatinine levels (149 μmol/L) in a 29-year-old male diagnosed with a 5-year history of grade 2 hypertension. Histopathology of the kidney biopsy showed stromal hyperplasia at the glomerular segmental sclerosis and endothelial cell vacuolation degeneration. Whole-exome sequencing followed by Sanger sequencing revealed a heterozygous missense mutation (c.643C > T) in exon 2 of TRPC6, leading to the substitution of arginine with tryptophan at position 215 (p.Arg215Trp). Systems genetics analysis of the 53 BXD mice kidney transcriptomes identified Pygm as the upstream regulator of Trpc6. Those two genes are jointly involved in the regulation of FSGS mainly via Wnt and Hippo signaling pathways. We present a novel variant in the TRPC6 gene that causes FSGS. Moreover, our data suggested TRPC6 works with PYGM, as well as Wnt and Hippo signaling pathways to regulate renal function, which could guide future clinical prevention and targeted treatment for FSGS outcomes.
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Affiliation(s)
- Tianxi Yu
- School of Clinical Medicine, Weifang Medical University, Weifang, 261042, China
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Yongqiang Ji
- Department of Nephrology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Xin Cui
- School of Clinical Medicine, Weifang Medical University, Weifang, 261042, China
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Ning Liang
- School of Clinical Medicine, Weifang Medical University, Weifang, 261042, China
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Shuang Wu
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Chongjun Xiang
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
- The 2nd Medical College of Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Yue Li
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
- The 2nd Medical College of Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Huiying Tao
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
- The 2nd Medical College of Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Yaqi Xie
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
- The 2nd Medical College of Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Hongwei Zuo
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
- The 2nd Medical College of Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Wenting Wang
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Nauman Khan
- Department of Biology, Faculty of Biological and Biomedical Sciences, The University of Haripur, Haripur, KP, Pakistan
| | - Kamran Ullah
- Department of Biology, Faculty of Biological and Biomedical Sciences, The University of Haripur, Haripur, KP, Pakistan
| | - Fuyi Xu
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Yan Zhang
- Department of Nephrology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China.
| | - Chunhua Lin
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China.
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4
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Ali A, Mahla SB, Reza V, Hossein A, Bahareh K, Mohammad H, Fatemeh S, Mostafa AB, Leili R. MicroRNAs: Potential prognostic and theranostic biomarkers in chronic lymphocytic leukemia. EJHAEM 2024; 5:191-205. [PMID: 38406506 PMCID: PMC10887358 DOI: 10.1002/jha2.849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 12/13/2023] [Accepted: 12/29/2023] [Indexed: 02/27/2024]
Abstract
Small noncoding ribonucleic acids called microRNAs coordinate numerous critical physiological and biological processes such as cell division, proliferation, and death. These regulatory molecules interfere with the function of many genes by binding the 3'-UTR region of target mRNAs to inhibit their translation or even degrade them. Given that a large proportion of miRNAs behave as either tumor suppressors or oncogenes, any genetic or epigenetic aberration changeing their structure and/or function could initiate tumor formation and development. An example of such cancers is chronic lymphocytic leukemia (CLL), the most prevalent adult leukemia in Western nations, which is caused by unregulated growth and buildup of defective cells in the peripheral blood and lymphoid organs. Genetic alterations at cellular and molecular levels play an important role in the occurrence and development of CLL. In this vein, it was noted that the development of this disease is noticeably affected by changes in the expression and function of miRNAs. Many studies on miRNAs have shown that these molecules are pivotal in the prognosis of different cancers, including CLL, and their epigenetic alterations (e.g., methylation) can predict disease progression and response to treatment. Furthermore, miRNAs are involved in the development of drug resistance in CLL, and targeting these molecules can be considered a new therapeutic approach for the treatment of this disease. MiRNA screening can offer important information on the etiology and development of CLL. Considering the importance of miRNAs in gene expression regulation, their application in the diagnosis, prognosis, and treatment of CLL is reviewed in this paper.
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Affiliation(s)
- Afgar Ali
- Research Center for Hydatid Disease in IranKerman University of Medical SciencesKermanIran
| | - Sattarzadeh Bardsiri Mahla
- Stem Cells and Regenerative Medicine Innovation CenterKerman University of Medical SciencesKermanIran
- Department of Hematology and Laboratory Sciences, Faculty of Allied Medical SciencesKerman University of Medical SciencesKermanIran
| | - Vahidi Reza
- Research Center for Hydatid Disease in IranKerman University of Medical SciencesKermanIran
| | - Arezoomand Hossein
- Department of Hematology and Laboratory Sciences, Faculty of Allied Medical SciencesKerman University of Medical SciencesKermanIran
| | - Kashani Bahareh
- Department of Medical Genetics, School of MedicineTehran University of Medical SciencesTehranIran
| | - Hosseininaveh Mohammad
- Research Center for Hydatid Disease in IranKerman University of Medical SciencesKermanIran
| | - Sharifi Fatemeh
- Research Center of Tropical and Infectious DiseasesKerman University of Medical SciencesKermanIran
| | - Amopour Bahnamiry Mostafa
- Department of Research and Development, Production and Research ComplexPasteur Institute of IranTehranIran
| | - Rouhi Leili
- Student Research CommitteeKerman University of Medical SciencesKermanIran
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5
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Bharati J, Kumar M, Kumar N, Malhotra A, Singhal PC. MicroRNA193a: An Emerging Mediator of Glomerular Diseases. Biomolecules 2023; 13:1743. [PMID: 38136614 PMCID: PMC10742064 DOI: 10.3390/biom13121743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/30/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
MicroRNAs (miRNAs) are noncoding small RNAs that regulate the protein expression of coding messenger RNAs. They are used as biomarkers to aid in diagnosing, prognosticating, and surveillance of diseases, especially solid cancers. MiR-193a was shown to be directly pathogenic in an experimental mouse model of focal segmental glomerulosclerosis (FSGS) during the last decade. Its specific binding and downregulation of Wilm's tumor-1 (WT-1), a transcription factor regulating podocyte phenotype, is documented. Also, miR-193a is a regulator switch causing the transdifferentiation of glomerular parietal epithelial cells to a podocyte phenotype in in vitro study. Interaction between miR-193a and apolipoprotein 1 (APOL1) mRNA in glomeruli (filtration units of kidneys) is potentially involved in the pathogenesis of common glomerular diseases. Since the last decade, there has been an increasing interest in the role of miR-193a in glomerular diseases, including diabetic nephropathy and membranous nephropathy, besides FSGS. Considering the lack of biomarkers to manage FSGS and diabetic nephropathy clinically, it is worthwhile to invest in evaluating miR-193a in the pathogenesis of these diseases. What causes the upregulation of miR-193a in FSGS and how the mechanism is different in different glomerular disorders still need to be elucidated. This narrative review highlights the pathogenic mechanisms of miR-193a elevation in various glomerular diseases and its potential use in clinical management.
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Affiliation(s)
- Joyita Bharati
- Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; (J.B.); (M.K.); (N.K.)
- Division of Kidney Diseases and Hypertension, Zucker School of Medicine at Hofstra Northwell Health, Great Neck, NY 11021, USA
| | - Megan Kumar
- Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; (J.B.); (M.K.); (N.K.)
| | - Neil Kumar
- Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; (J.B.); (M.K.); (N.K.)
| | - Ashwani Malhotra
- Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; (J.B.); (M.K.); (N.K.)
| | - Pravin C. Singhal
- Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; (J.B.); (M.K.); (N.K.)
- Division of Kidney Diseases and Hypertension, Zucker School of Medicine at Hofstra Northwell Health, Great Neck, NY 11021, USA
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6
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Hayward S, Parmesar K, Welsh GI, Suderman M, Saleem MA. Epigenetic Mechanisms and Nephrotic Syndrome: A Systematic Review. Biomedicines 2023; 11:514. [PMID: 36831050 PMCID: PMC9953384 DOI: 10.3390/biomedicines11020514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
A small subset of people with nephrotic syndrome (NS) have genetically driven disease. However, the disease mechanisms for the remaining majority are unknown. Epigenetic marks are reversible but stable regulators of gene expression with utility as biomarkers and therapeutic targets. We aimed to identify and assess all published human studies of epigenetic mechanisms in NS. PubMed (MEDLINE) and Embase were searched for original research articles examining any epigenetic mechanism in samples collected from people with steroid resistant NS, steroid sensitive NS, focal segmental glomerulosclerosis or minimal change disease. Study quality was assessed by using the Joanna Briggs Institute critical appraisal tools. Forty-nine studies met our inclusion criteria. The majority of these examined micro-RNAs (n = 35, 71%). Study quality was low, with only 23 deemed higher quality, and most of these included fewer than 100 patients and failed to validate findings in a second cohort. However, there were some promising concordant results between the studies; higher levels of serum miR-191 and miR-30c, and urinary miR-23b-3p and miR-30a-5p were observed in NS compared to controls. We have identified that the epigenome, particularly DNA methylation and histone modifications, has been understudied in NS. Large clinical studies, which utilise the latest high-throughput technologies and analytical pipelines, should focus on addressing this critical gap in the literature.
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Affiliation(s)
- Samantha Hayward
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 1UD, UK
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 1UD, UK
| | - Kevon Parmesar
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 1UD, UK
| | - Gavin I. Welsh
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 1UD, UK
| | - Matthew Suderman
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 1UD, UK
| | - Moin A. Saleem
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 1UD, UK
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Kadkhoda S, Eslami S, Mahmud Hussen B, Ghafouri-Fard S. A review on the importance of miRNA-135 in human diseases. Front Genet 2022; 13:973585. [PMID: 36147505 PMCID: PMC9486161 DOI: 10.3389/fgene.2022.973585] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/04/2022] [Indexed: 12/03/2022] Open
Abstract
MicroRNA-135 (miR-135) is a microRNA which is involved in the pathoetiology of several neoplastic and non-neoplastic conditions. Both tumor suppressor and oncogenic roles have been reported for this miRNA. Studies in prostate, renal, gallbladder and nasopharyngeal cancers as well as glioma have shown down-regulation of miR-135 in cancerous tissues compared with controls. These studies have also shown the impact of miR-135 down-regulation on enhancement of cell proliferation and aggressive behavior. Meanwhile, miR-135 has been shown to be up-regulated in bladder, oral, colorectal and liver cancers. Studies in breast, gastric, lung and pancreatic cancers as well as head and neck squamous cell carcinoma have reported dual roles for miR-135. Dysregulation of miR-135 has also been noted in various non-neoplastic conditions such as Alzheimer’s disease, atherosclerosis, depression, diabetes, Parkinson, pulmonary arterial hypertension, nephrotic syndrome, endometriosis, epilepsy and allergic conditions. In the current review, we summarize the role of miR-135 in the carcinogenesis as well as development of other disorders.
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Affiliation(s)
- Sepideh Kadkhoda
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Solat Eslami
- Dietary Supplements and Probiotic Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Department of Medical Biotechnology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
- Center of Research and Strategic Studies, Lebanese French University, Erbil, Iraq
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Soudeh Ghafouri-Fard,
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8
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Jorgensen BG, Ro S. MicroRNAs and 'Sponging' Competitive Endogenous RNAs Dysregulated in Colorectal Cancer: Potential as Noninvasive Biomarkers and Therapeutic Targets. Int J Mol Sci 2022; 23:ijms23042166. [PMID: 35216281 PMCID: PMC8876324 DOI: 10.3390/ijms23042166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 01/28/2022] [Accepted: 02/02/2022] [Indexed: 12/13/2022] Open
Abstract
The gastrointestinal (GI) tract in mammals is comprised of dozens of cell types with varied functions, structures, and histological locations that respond in a myriad of ways to epigenetic and genetic factors, environmental cues, diet, and microbiota. The homeostatic functioning of these cells contained within this complex organ system has been shown to be highly regulated by the effect of microRNAs (miRNA). Multiple efforts have uncovered that these miRNAs are often tightly influential in either the suppression or overexpression of inflammatory, apoptotic, and differentiation-related genes and proteins in a variety of cell types in colorectal cancer (CRC). The early detection of CRC and other GI cancers can be difficult, attributable to the invasive nature of prophylactic colonoscopies. Additionally, the levels of miRNAs associated with CRC in biofluids can be contradictory and, therefore, must be considered in the context of other inhibiting competitive endogenous RNAs (ceRNA) such as lncRNAs and circRNAs. There is now a high demand for disease treatments and noninvasive screenings such as testing for bloodborne or fecal miRNAs and their inhibitors/targets. The breadth of this review encompasses current literature on well-established CRC-related miRNAs and the possibilities for their use as biomarkers in the diagnoses of this potentially fatal GI cancer.
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Mafi A, Yadegar N, Salami M, Salami R, Vakili O, Aghadavod E. Circular RNAs; powerful microRNA sponges to overcome diabetic nephropathy. Pathol Res Pract 2021; 227:153618. [PMID: 34649056 DOI: 10.1016/j.prp.2021.153618] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 12/13/2022]
Abstract
Diabetic nephropathy (DN), also known as diabetic kidney disease (DKD), is a drastic renal complication of type 1 and type 2 diabetes mellitus (DM). Poorly controlled DM over the years, may disrupt kidneys' blood vessels, leading to the hypertension (HTN) and DN onset. During DN, kidneys' waste filtering ability becomes disturbed. Being on a healthy lifestyle and controlling both DM and HTN are now the best proceedings to prevent or at least delay DN occurrence. Unfortunately, about one-fourth of diabetic individuals eventually experience the corresponding renal failure, and thus it is critical to discover effective diagnostic biomarkers and therapeutic strategies to combat DN. In the past few years, circular RNAs (circRNAs), as covalently closed endogenous non-coding RNAs (ncRNAs), are believed to affect DN pathogenesis in a positive manner. CircRNAs are able to impact different cellular processes and signaling pathways by targeting biological molecules or various molecular mechanisms. Still, as a key regulatory axis, circRNAs can select miRNAs as their molecular targets, in which they are considered as miRNA sponges. In this way, circRNA-induced suppression of particular miRNAs may prevent from DN progression or promotes the DN elimination. Since the expression of circRNAs has also been reported to be increased in DN-associated cells and tissues, they can be employed as either diagnostic biomarkers or therapeutic targets.
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Affiliation(s)
- Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Negar Yadegar
- Department of Medical Laboratory Sciences, School of Paramedical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Marziyeh Salami
- Department of Biochemistry, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
| | - Raziyeh Salami
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran.
| | - Omid Vakili
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Esmat Aghadavod
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran; Department of Clinical Biochemistry, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
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10
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Li P, Gu L, Bian Q, Jiao D, Xu Z, Wang L. Long non-coding RNA MALAT1 enhances the protective effect of dexmedetomidine on acute lung injury by sponging miR-135a-5p to downregulate the ratio of X-box binding proteins XBP-1S/XBP-1U. Bioengineered 2021; 12:6377-6389. [PMID: 34516310 PMCID: PMC8806486 DOI: 10.1080/21655979.2021.1967579] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Acute lung injury (ALI) is the common and clinically severe complication. Dexmedetomidine (DEX) can protect against lipopolysaccharide (LPS)-induced ALI through anti-apoptosis, anti-inflammatory and immune regulatory actions. It is well documented that major causes of LPS-induced ALI are endoplasmic reticulum stress (ERS) and abnormally elevated CHOP. Moreover, XBP-1 can enhance CHOP expression. XBP-1S can aggravate ERS and XBP-1 U can repress ERS. By querying Starbase, miR-135a-5p interacts with XBP-1 and lncRNA MALAT1 sponges miR-135a-5p. It has been reported that MALAT1 interference markedly promoted the apoptosis of pulmonary microvascular endothelial cells in ALI rats by activating TLR4/NF-κB pathway. miR-135a-5p inhibitor remarkably alleviated LPS-induced A549 cell injury through suppressing cell apoptosis. In the present work, LPS was dripped into the nasal cavity of SD rats to establish the rat model of ALI and LPS was also applied to stimulate BEAS-2B cells to imitate ALI in vitro. Then, the pathology, lung function indexes, levels of inflammatory factors, apoptosis of lung tissues in SD rats and apoptotic level of BEAS-2B cells were measured, so as to confirm whether upregulation of lncRNA MALAT1 was able to suppress ERS, thus enhancing the protective effect of DEX against ALI. Herein, overexpression of lncRNA MALAT1 strengthened the remission effects of DEX on LPS-triggered ALI, severe pulmonary edema, inflammatory response and cell apoptosis of lung tissues in SD rats and reinforced the anti-apoptosis effect of DEX on LPS-stimulated BEAS-2B cells. Mechanically, lncRNA MALAT1 enhanced the protective effect of DEX against ALI by downregulating the ratio of XBP-1S/XBP-1U to repress ERS.
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Affiliation(s)
- Pengyi Li
- Department of Anesthesiology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Lianbing Gu
- Department of Anesthesiology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qingming Bian
- Department of Anesthesiology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Dian Jiao
- Department of Anesthesiology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zeping Xu
- Department of Anesthesiology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Lijun Wang
- Department of Anesthesiology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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11
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Weidle UH, Birzele F. Bladder Cancer-related microRNAs With In Vivo Efficacy in Preclinical Models. CANCER DIAGNOSIS & PROGNOSIS 2021; 1:245-263. [PMID: 35403137 PMCID: PMC8988954 DOI: 10.21873/cdp.10033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/15/2021] [Indexed: 06/14/2023]
Abstract
Progressive and metastatic bladder cancer remain difficult to treat. In this review, we critique seven up-regulated and 25 down-regulated microRNAs in order to identify new therapeutic entities and corresponding targets. These microRNAs were selected with respect to their efficacy in bladder cancer-related preclinical in vivo models. MicroRNAs and related targets interfering with chemoresistance, cell-cycle, signaling, apoptosis, autophagy, transcription factor modulation, epigenetic modification and metabolism are described. In addition, we highlight microRNAs targeting transmembrane receptors and secreted factors. We discuss druggability issues for the identified targets.
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Affiliation(s)
- Ulrich H Weidle
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
| | - Fabian Birzele
- Roche Pharma Research and Early Development, Pharmaceutical Sciences,Roche Innovation Center Basel, Basel, Switzerland
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12
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Srivastava SP, Srivastava R, Chand S, Goodwin JE. Coronavirus Disease (COVID)-19 and Diabetic Kidney Disease. Pharmaceuticals (Basel) 2021; 14:751. [PMID: 34451848 PMCID: PMC8398861 DOI: 10.3390/ph14080751] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/17/2021] [Accepted: 07/26/2021] [Indexed: 01/08/2023] Open
Abstract
The present review describes COVID-19 severity in diabetes and diabetic kidney disease. We discuss the crucial effect of COVID-19-associated cytokine storm and linked injuries and associated severe mesenchymal activation in tubular epithelial cells, endothelial cells, and macrophages that influence neighboring cell homeostasis, resulting in severe proteinuria and organ fibrosis in diabetes. Altered microRNA expression disrupts cellular homeostasis and the renin-angiotensin-system, targets reno-protective signaling proteins, such as angiotensin-converting enzyme 2 (ACE2) and MAS1 receptor (MAS), and facilitates viral entry and replication in kidney cells. COVID-19-associated endotheliopathy that interacts with other cell types, such as neutrophils, platelets, and macrophages, is one factor that accelerates prethrombotic reactions and thrombus formation, resulting in organ failures in diabetes. Apart from targeting vital signaling through ACE2 and MAS, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections are also associated with higher profibrotic dipeptidyl transferase-4 (DPP-4)-mediated mechanisms and suppression of AMP-activated protein kinase (AMPK) activation in kidney cells. Lowered DPP-4 levels and restoration of AMPK levels are organ-protective, suggesting a pathogenic role of DPP-4 and a protective role of AMPK in diabetic COVID-19 patients. In addition to standard care provided to COVID-19 patients, we urgently need novel drug therapies that support the stability and function of both organs and cell types in diabetes.
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Affiliation(s)
- Swayam Prakash Srivastava
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06520, USA
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06511, USA
| | - Rohit Srivastava
- Laboratory of Medical Transcriptomics, Department of Endocrinology, Nephrology Services, Hadassah Hebrew-University Medical Center, Jerusalem 91905, Israel;
| | - Subhash Chand
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA;
| | - Julie E. Goodwin
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06520, USA
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06511, USA
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13
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Woodhams L, Sim TF, Chalmers L, Yeap B, Green D, Schlaich M, Schultz C, Hillis G. Diabetic kidney disease in type 2 diabetes: a review of pathogenic mechanisms, patient-related factors and therapeutic options. PeerJ 2021; 9:e11070. [PMID: 33976959 PMCID: PMC8061574 DOI: 10.7717/peerj.11070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 02/16/2021] [Indexed: 12/23/2022] Open
Abstract
The global prevalence of diabetic kidney disease is rapidly accelerating due to an increasing number of people living with type 2 diabetes. It has become a significant global problem, increasing human and financial pressures on already overburdened healthcare systems. Interest in diabetic kidney disease has increased over the last decade and progress has been made in determining the pathogenic mechanisms and patient-related factors involved in the development and pathogenesis of this disease. A greater understanding of these factors will catalyse the development of novel treatments and influence current practice. This review summarises the latest evidence for the factors involved in the development and progression of diabetic kidney disease, which will inform better management strategies targeting such factors to improve therapeutic outcomes in patients living with diabetes.
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Affiliation(s)
- Louise Woodhams
- Curtin Medical School, Curtin University of Technology, Perth, Western Australia, Australia
| | - Tin Fei Sim
- Curtin Medical School, Curtin University of Technology, Perth, Western Australia, Australia
| | - Leanne Chalmers
- Curtin Medical School, Curtin University of Technology, Perth, Western Australia, Australia
| | - Bu Yeap
- Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, Western Australia, Australia.,Medical School, The University of Western Australia, Perth, Western Australia, Australia
| | - Daniel Green
- School of Human Sciences (Exercise and Sport Sciences), The University of Western Australia, Perth, Western Australia, Australia
| | - Markus Schlaich
- Medical School, The University of Western Australia, Perth, Western Australia, Australia.,Department of Cardiology and Nephrology, Royal Perth Hospital, Perth, Western Australia, Australia.,Neurovascular Hypertension and Kidney Disease Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.,Dobney Hypertension Centre, School of Medicine, Royal Perth Hospital Unit/Medical Research Foundation, The University of Western Australia, Perth, Western Australia, Australia
| | - Carl Schultz
- Medical School, The University of Western Australia, Perth, Western Australia, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Graham Hillis
- Medical School, The University of Western Australia, Perth, Western Australia, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
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14
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Iranzad R, Motavalli R, Ghassabi A, Pourakbari R, Etemadi J, Yousefi M. Roles of microRNAs in renal disorders related to primary podocyte dysfunction. Life Sci 2021; 277:119463. [PMID: 33862110 DOI: 10.1016/j.lfs.2021.119463] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/19/2021] [Accepted: 03/27/2021] [Indexed: 12/20/2022]
Abstract
Through the regulation of gene expression, microRNAs (miRNAs) are capable of modulating vital biological processes, such as proliferation, differentiation, and apoptosis. Several mechanisms control the function of miRNAs, including translational inhibition and targeted miRNA degradation. Through utilizing high-throughput screening methods, such as small RNA sequencing and microarray, alterations in miRNA expression of kidneys have recently been observed both in rodent models and humans throughout the development of chronic kidney disease (CKD) and acute kidney injury (AKI). The levels of miRNAs in urine supernatant, sediment, and exosomal fraction could predict novel biomarker candidates in different diseases of kidneys, including IgA nephropathy, lupus nephritis, and diabetic nephropathy. The therapeutic potential of administrating anti-miRNAs and miRNAs has also been reported recently. The present study is aimed at reviewing the state-of-the-art research with regards to miRNAs involved in renal disorders related to primary podocyte dysfunction by laying particular emphasis on Focal Segmental Glomerulosclerosis (FSGS), Minimal Change Disease (MCD) and Membranous Nephropathy (MN).
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Affiliation(s)
- Rahim Iranzad
- Tabriz University of Medical Sciences, Tabriz, Iran; Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Roza Motavalli
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Ghassabi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ramin Pourakbari
- Tabriz University of Medical Sciences, Tabriz, Iran; Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jalal Etemadi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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15
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Chen H, Zhao Y, Zhang J, Xie Y, Jin M. Promoting effects of MiR-135b on human multiple myeloma cells via regulation of the Wnt/β-catenin/Versican signaling pathway. Cytokine 2021; 142:155495. [PMID: 33765653 DOI: 10.1016/j.cyto.2021.155495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/22/2021] [Accepted: 03/04/2021] [Indexed: 01/02/2023]
Abstract
MicroRNA (MiR)-135b and its mediated Wnt/β-catenin signaling pathway are involved in human malignancies. However, their roles in multiple myeloma (MM) remained poorly understood. Our study aimed to uncover their roles in MM. MiR-135b and Versican expressions were measured using quantitative real-time polymerase chain reaction (qRT-PCR). MM cell proliferation, apoptosis, migration and invasion were detected by cell counting kit-8 (CCK-8) assay, flow cytometry, wound healing assay and transwell assay, respectively. Relative expression of Wnt/β-catenin signaling pathway-related protein was quantified by Western blot. MiR-135b was upregulated in the serum of MM patients, and miR-135b upregulation promoted MM cell proliferation, migration and invasion but suppressed apoptosis. Also, miR-135b upregulation promoted activation of Wnt/β-catenin signaling pathway. However, downregulation of miR-135b caused an opposite effect. After incubating cells with miR-135b inhibitor and Wnt/β-catenin signaling pathway agonist Lithium chloride (LiCl), which reversed the effects of downregulating miR-135b. Versican is the downstream effector of the Wnt/β-catenin signaling pathway, and its silencing reversed the effects of LiCl on MM cells. In conclusion, miR-135b and its mediated Wnt/β-catenin signaling pathway promoted proliferation, migration and invasion but suppressed apoptosis of MM cells through regulating Versican, providing a possible treatment for MM.
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Affiliation(s)
- Hong Chen
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yuan Zhao
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Jiajia Zhang
- Department of Hematology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yan Xie
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Mulan Jin
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
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16
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Peng F, Gong W, Li S, Yin B, Zhao C, Liu W, Chen X, Luo C, Huang Q, Chen T, Sun L, Fang S, Zhou W, Li Z, Long H. circRNA_010383 Acts as a Sponge for miR-135a, and Its Downregulated Expression Contributes to Renal Fibrosis in Diabetic Nephropathy. Diabetes 2021; 70:603-615. [PMID: 33472945 DOI: 10.2337/db20-0203] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 11/02/2020] [Indexed: 11/13/2022]
Abstract
Diabetic nephropathy (DN), a vascular complication of diabetes, is the leading cause of death in patients with diabetes. The contribution of aberrantly expressed circular RNAs (circRNAs) to DN in vivo is poorly understood. Integrated comparative circRNA microarray profiling was used to examine the expression of circRNAs in diabetic kidney of db/db mice. We found that circRNA_010383 expression was markedly downregulated in diabetic kidneys, mesangial cells, and tubular epithelial cells cultured in high-glucose conditions. circRNA_010383 colocalized with miRNA-135a (miR-135a) and inhibited miR-135a function by directly binding to miR-135a. In vitro, the knockdown of circRNA_010383 promoted the accumulation of extracellular matrix (ECM) proteins and downregulated the expression of transient receptor potential cation channel, subfamily C, member 1 (TRPC1), which is a target protein of miR-135a. Furthermore, circRNA_010383 overexpression effectively inhibited the high-glucose-induced accumulation of ECM and increased TRPC1 levels in vitro. More importantly, the kidney target of circRNA_010383 overexpression inhibited proteinuria and renal fibrosis in db/db mice. Mechanistically, we identified that a loss of circRNA_010383 promoted proteinuria and renal fibrosis in DN by acting as a sponge for miR-135a. This study reveals that circRNA_010383 may be a novel therapeutic target for DN in the future.
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Affiliation(s)
- Fenfen Peng
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Wangqiu Gong
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Shuting Li
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Bohui Yin
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Chen Zhao
- Department of Nephrology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Wenting Liu
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaowen Chen
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Congwei Luo
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qianying Huang
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Ting Chen
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Lingzhi Sun
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Shun Fang
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Weidong Zhou
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhijian Li
- Department of Nephrology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou, China
| | - Haibo Long
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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17
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Ardalan M, Hejazian SM, Sharabiyani HF, Farnood F, Ghafari Aghdam A, Bastami M, Ahmadian E, Zununi Vahed S, Cucchiarini M. Dysregulated levels of glycogen synthase kinase-3β (GSK-3β) and miR-135 in peripheral blood samples of cases with nephrotic syndrome. PeerJ 2020; 8:e10377. [PMID: 33362958 PMCID: PMC7749650 DOI: 10.7717/peerj.10377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022] Open
Abstract
Background Glycogen synthase kinase-3 (GSK-3β) is a serine/threonine kinase with multifunctions in various physiological procedures. Aberrant level of GSK-3β in kidney cells has a harmful role in podocyte injury. Methods In this article, the expression levels of GSK-3β and one of its upstream regulators, miR-135a-5p, were measured in peripheral blood mononuclear cells (PBMCs) of cases with the most common types of nephrotic syndrome (NS); focal segmental glomerulosclerosis (FSGS) and membranous glomerulonephritis (MGN). In so doing, fifty-two cases along with twenty-four healthy controls were included based on the strict criteria. Results Levels of GSK-3β mRNA and miR-135 were measured with quantitative real-time PCR. There were statistically significant increases in GSK-3β expression level in NS (P = 0.001), MGN (P = 0.002), and FSGS (P = 0.015) groups compared to the control group. Dysregulated levels of miR-135a-5p in PBMCs was not significant between the studied groups. Moreover, a significant decrease was observed in the expression level of miR-135a-5p in the plasma of patients with NS (P = 0.020), MGN (P = 0.040), and FSGS (P = 0.046) compared to the control group. ROC curve analysis approved a diagnostic power of GSK-3β in discriminating patients from healthy controls (AUC: 0.72, P = 0.002) with high sensitivity and specificity. Conclusions Dysregulated levels of GSK-3β and its regulator miR-135a may participate in the pathogenesis of NS with different etiology. Therefore, more research is needed for understanding the relationship between them.
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Affiliation(s)
| | - Seyyedeh Mina Hejazian
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Farahnoosh Farnood
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirhossein Ghafari Aghdam
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Bastami
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Ahmadian
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Universität des Saarlandes, Homburg/Saar, Germany
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18
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Widiasta A, Sribudiani Y, Nugrahapraja H, Hilmanto D, Sekarwana N, Rachmadi D. Potential role of ACE2-related microRNAs in COVID-19-associated nephropathy. Noncoding RNA Res 2020; 5:153-166. [PMID: 32923747 PMCID: PMC7480227 DOI: 10.1016/j.ncrna.2020.09.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/06/2020] [Accepted: 09/07/2020] [Indexed: 01/08/2023] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is responsible for coronavirus disease (COVID-19), potentially have severe kidney adverse effects. This organ expressed angiotensin-converting enzyme 2 (ACE2), the transmembrane protein which facilitate the entering of the virus into the cell. Therefore, early detection of the kidney manifestations of COVID-19 is crucial. Previous studies showed ACE2 role in various indications of this disease, especially in kidney effects. The MicroRNAs (miRNAs) in this organ affected ACE2 expression. Therefore, this review aims at summarizing the literature of a novel miRNA-based therapy and its potential applications in COVID-19-associated nephropathy. Furthermore, previous studies were analyzed for the kidney manifestations of COVID-19 and the miRNAs role that were published on the online databases, namely MEDLINE (PubMed) and Scopus. Several miRNAs, particularly miR-18 (which was upregulated in nephropathy), played a crucial role in ACE2 expression. Therefore, the antimiR-18 roles were summarized in various primate models that aided in developing the therapy for ACE2 related diseases.
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Affiliation(s)
- Ahmedz Widiasta
- Pediatric Nephrology Division, Child Health Department, Faculty of Medicine, Universitas Padjadjaran, Indonesia
- Medical Genetic Research Center, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Yunia Sribudiani
- Medical Genetic Research Center, Faculty of Medicine, Universitas Padjadjaran, Indonesia
- Department of Biomedical Sciences, Division of Biochemistry and Molecular Biology, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Husna Nugrahapraja
- Life Science and Biotechnology, Bandung Institute of Technology, Indonesia
| | - Dany Hilmanto
- Pediatric Nephrology Division, Child Health Department, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Nanan Sekarwana
- Pediatric Nephrology Division, Child Health Department, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Dedi Rachmadi
- Pediatric Nephrology Division, Child Health Department, Faculty of Medicine, Universitas Padjadjaran, Indonesia
- Medical Genetic Research Center, Faculty of Medicine, Universitas Padjadjaran, Indonesia
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19
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Liu Y, Huo SG, Xu L, Che YY, Jiang SY, Zhu L, Zhao M, Teng YC. MiR-135b Alleviates Airway Inflammation in Asthmatic Children and Experimental Mice with Asthma via Regulating CXCL12. Immunol Invest 2020; 51:496-510. [PMID: 33203292 DOI: 10.1080/08820139.2020.1841221] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To clarify the possible influence of miR-135b on CXCL12 and airway inflammation in children and experimental mice with asthma. METHODS The expressions of miR-135b and CXCL12 were detected using quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) in the serum of asthmatic children. Besides, the experimental asthmatic mice were established by aerosol inhalation of ovalbumin (OVA) followed by the treatment with agomiR-135b and antagomir-135b. Pathological changes of lung tissues were observed via HE staining and PAS staining. Besides, the airway hyperresponsiveness of mice was elevated and bronchoalveolar lavage fluid (BALF) was isolated for cell categorization and counting. The inflammatory cytokines in BALF were determined by enzyme-linked immunosorbent assay (ELISA), and the infiltration of Th17 cells in lung tissues was measured using flow cytometry. RESULTS MiR-135b was downregulated and CXCL12 was upregulated in asthmatic children and mice. Overexpression of miR-135b may down-regulate CXCL12 expression in the lung of OVA mice, resulting in significant decreases in inflammatory infiltration, hyperplasia of goblet cell, airway hyperresponsiveness, cell quantity, as well as the quantity of eosinophilic granulocytes, neutrophils and lymphocytes in BALF. Also, the levels of inflammatory cytokines (IL-4, IL-5, IL-13 and IL-17) and the ratio of Th17 cells and IL-17 levels in lung tissues were decreased. However, miR-135b downregulation reversed these changes in OVA mice. CONCLUSION MiR-135b may inhibit immune responses of Th17 cells to alleviate airway inflammation and hyperresponsiveness in asthma possibly by targeting CXCL12, showing the potential value in asthma treatment.
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Affiliation(s)
- Ying Liu
- Department of Pediatrics, Caoxian people's Hospital, Heze City, Shandong Province, China
| | - Shi-Guang Huo
- Department of Pediatric, Liaocheng Second People's Hospital, Linqing, China
| | - Ling Xu
- Shandong Rizhao Port Hospital
| | - Yuan-Yuan Che
- Department of Pediatrics, Caoxian people's Hospital, Heze City, Shandong Province, China
| | | | - Li Zhu
- Department of Pediatrics, Caoxian people's Hospital, Heze City, Shandong Province, China
| | - Min Zhao
- Department of Pediatrics, Shanxian Central Hospital, Heze City, Shandong Province, China
| | - Yue-Chun Teng
- Department of Pediatrics, Liaocheng People's Hospital
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20
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Chen Q, Chen J, Wang C, Chen X, Liu J, Zhou L, Liu Y. MicroRNA-466o-3p mediates β-catenin-induced podocyte injury by targeting Wilms tumor 1. FASEB J 2020; 34:14424-14439. [PMID: 32888352 DOI: 10.1096/fj.202000464r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 08/04/2020] [Accepted: 08/13/2020] [Indexed: 12/18/2022]
Abstract
Podocytes are highly specialized cells that play an essential role in maintaining the integrity and function of the glomerular filtration barrier. Wilms tumor 1 (WT1) and β-catenin are two master regulators that play opposing roles in podocyte biology and mutually antagonize each other. However, exactly how β-catenin inhibits WT1 remains incompletely understood. In this study, we demonstrated the role of miR-466o-3p in mediating β-catenin-triggered podocyte injury by targeting WT1. The expression of miR-466o-3p was upregulated in cultured podocytes after β-catenin activation and in glomerular podocytes in adriamycin (ADR) nephropathy, remnant kidney after 5/6 renal ablation, and diabetic kidney disease. Bioinformatics analysis and luciferase reporter assay confirmed that miR-466o-3p directly targeted WT1 mRNA. Furthermore, overexpression of miR-466o-3p downregulated WT1 protein and promoted podocyte injury in vitro. Conversely, inhibition of miR-466o-3p alleviated β-catenin-induced podocyte dysfunction. In mouse model of ADR nephropathy, overexpression of miR-466o-3p inhibited WT1, aggravated podocytes injury and deteriorated proteinuria. In contrast, inhibition of renal miR-466o-3p by antagomiR, either prior to or after ADR injection, substantially restored WT1, alleviated podocytes injury and reduced renal fibrosis. These studies reveal a critical role for miR-466o-3p, a novel microRNA that has not been characterized previously, in mediating β-catenin-triggered WT1 inhibition. Our findings also uncover a new pathogenic mechanism by which β-catenin promotes podocyte injury and proteinuria in glomerular diseases.
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Affiliation(s)
- Qiyan Chen
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiongcheng Chen
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Chunhong Wang
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaowen Chen
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiafeng Liu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lili Zhou
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Youhua Liu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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21
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Xiao L, Luo D, Pi P, Hu ML, Li XY, Yin QQ. Up-regulation of miR-135b expression induced by oxidative stress promotes the apoptosis of renal tubular epithelial cells under high glucose condition. Clin Exp Pharmacol Physiol 2020; 47:1410-1419. [PMID: 32278326 DOI: 10.1111/1440-1681.13323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/13/2020] [Accepted: 04/02/2020] [Indexed: 12/27/2022]
Abstract
This study aimed to investigate the role and underlying mechanism of miR-135b in high glucose-induced oxidative stress of renal tubular epithelial cells. Here, in vivo experiments found that compared to the control group, miR-135b expression was significantly up-regulated in the diabetes group, whereas BMP7 mRNA and protein levels were down-regulated. In high glucose-treated renal tubular epithelial cells (HK-2) in vitro, oxidative stress was induced, which up-regulated miR-135b expression. In addition, the regulation of miR-135b on BMP7 expression was confirmed in HK-2 cells. Under high glucose conditions, oxidative stress promoted the apoptosis of HK-2 cells through the up-regulation of miR-135b expression. In vivo experiments indicated that interference with miR-135b improved renal function in mice with diabetic nephropathy. In conclusion, these results indicated that the up-regulation of miR-135b expression induced by oxidative stress promotes the apoptosis of HK-2 cells under high glucose conditions.
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Affiliation(s)
- Ling Xiao
- Department of Nephrology, Wuhan Third Hospital, Wuhan, China
| | - Dan Luo
- Department of Nephrology, Wuhan Third Hospital, Wuhan, China
| | - Pei Pi
- Department of Nephrology, Wuhan Third Hospital, Wuhan, China
| | - Man-Li Hu
- Department of Nephrology, Wuhan Third Hospital, Wuhan, China
| | - Xiang-You Li
- Department of Nephrology, Wuhan Third Hospital, Wuhan, China
| | - Qing-Qiao Yin
- Department of Nephrology, Wuhan Third Hospital, Wuhan, China
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22
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Bhattacharya M, Sharma AR, Sharma G, Patra BC, Lee SS, Chakraborty C. Interaction between miRNAs and signaling cascades of Wnt pathway in chronic lymphocytic leukemia. J Cell Biochem 2020; 121:4654-4666. [PMID: 32100920 DOI: 10.1002/jcb.29683] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 01/30/2020] [Indexed: 12/11/2022]
Abstract
Chronic lymphocytic leukemia (CLL), a severe problem all over the world and represents around 25% of all total leukemia cases, is generating the need for novel targets against CLL. Wnt signaling cascade regulates cell proliferation, differentiation, and cell death processes. Thus, any alteration of the Wnt signaling pathway protein cascade might develop into various types of cancers, either by upregulation or downregulation of the Wnt signaling pathway protein components. In addition, it is reported that activation of the Wnt signaling pathway is associated with the transcriptional activation of microRNAs (miRNAs) by binding to its promoter region, suggesting feedback regulation. Considering the protein regulatory functions of various miRNAs, they can be approached therapeutically as modulatory targets for protein components of the Wnt signaling pathway. In this article, we have discussed the potential role of miRNAs in the regulation of Wnt signaling pathway proteins related to the pathogenesis of CLL via crosstalk between miRNAs and Wnt signaling pathway proteins. This might provide a clear insight into the Wnt protein regulatory function of various miRNAs and provide a better understanding of developing advanced and promising therapeutic approaches against CLL.
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Affiliation(s)
- Manojit Bhattacharya
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University Hospital-College of Medicine, Chuncheon-si, Gangwon-do, Republic of Korea.,Department of Zoology, Vidyasagar University, Midnapore, West Bengal, India
| | - Ashish Ranjan Sharma
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University Hospital-College of Medicine, Chuncheon-si, Gangwon-do, Republic of Korea
| | - Garima Sharma
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University Hospital-College of Medicine, Chuncheon-si, Gangwon-do, Republic of Korea
| | | | - Sang-Soo Lee
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University Hospital-College of Medicine, Chuncheon-si, Gangwon-do, Republic of Korea
| | - Chiranjib Chakraborty
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal, India
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Tsuji K, Kitamura S, Wada J. Immunomodulatory and Regenerative Effects of Mesenchymal Stem Cell-Derived Extracellular Vesicles in Renal Diseases. Int J Mol Sci 2020; 21:ijms21030756. [PMID: 31979395 PMCID: PMC7037711 DOI: 10.3390/ijms21030756] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/21/2020] [Accepted: 01/21/2020] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have immunomodulatory and regenerative effects in many organs, including the kidney. Emerging evidence has shown that the trophic effects from MSCs are mainly mediated by the paracrine mechanism rather than the direct differentiation of MSCs into injured tissues. These secretomes from MSCs include cytokines, growth factors, chemokines and extracellular vesicles (EVs) containing microRNAs, mRNAs, and proteins. Many research studies have revealed that secretomes from MSCs have potential to ameliorate renal injury in renal disease models, including acute kidney injury and chronic kidney disease through a variety of mechanisms. These trophic mechanisms include immunomodulatory and regenerative effects. In addition, accumulating evidence has uncovered the specific factors and therapeutic mechanisms in MSC-derived EVs. In this article, we summarize the recent advances of immunomodulatory and regenerative effects of EVs from MSCs, especially focusing on the microRNAs.
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Affiliation(s)
| | - Shinji Kitamura
- Correspondence: ; Tel.: +81-86-235-7235; Fax: +81-86-222-5214
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Fractalkine is Involved in Lipopolysaccharide-Induced Podocyte Injury through the Wnt/β-Catenin Pathway in an Acute Kidney Injury Mouse Model. Inflammation 2020; 42:1287-1300. [PMID: 30919150 PMCID: PMC6647365 DOI: 10.1007/s10753-019-00988-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Injury to podocytes leads to proteinuria, a hallmark of most glomerular diseases as well as being associated with the progression of kidney disease. Activation of the Wnt/β-catenin pathway is associated with the pathogenesis of podocyte dysfunction and can play a role in renal injury. Furthermore, the expression of fractalkine (FKN) induced by lipopolysaccharides (LPS) is also one of crucial inflammation factors closely related to renal tissue damage. The aim of this study is to explore the mechanism of LPS-induced FKN expression leading to podocyte injury and contribute to acute kidney injury (AKI) through regulation of Wnt/β-catenin pathway. An AKI model was established for in vivo experiments and blood was collected for serum BUN and Cr measurement, and histopathological features of the kidneys were studied by PASM and IHC staining. For in vitro experiments, a mouse podocyte cell line was stimulated with different concentrations of LPS for 24 and 48 h after which podocyte viability and apoptosis of cells were evaluated. The expression of podocyte-specific markers, FKN and Wnt/β-catenin pathway mRNA and protein was detected in mice and cells by using qRT-PCR and western blotting. LPS induced the expression of FKN and activation of the Wnt/β-catenin pathway, leading to a decrease of podocyte-specific proteins which resulted in poor renal pathology and dysfunction in the AKI mouse model. Moreover, LPS treatment significantly decreased cell viability and induced podocyte apoptosis in a dose-dependent manner that causes changes in the expression of podocyte-specific proteins through activation of FKN and the Wnt/β-catenin pathway. Thus, the expression of FKN and Wnt/β-catenin pathway by LPS is closely associated with podocyte damage or loss and could therefore account for progressive AKI. Our findings indicate that LPS induce podocyte injury and contribute to the pathogenesis of AKI by upregulating the expression of FKN and Wnt/β-catenin pathway.
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Jin X, Deng B, Ye K, Ye D, Huang Y, Chen X, Yang Z, Chen Y. Comprehensive expression profiles and bioinformatics analysis reveal special circular RNA expression and potential predictability in the peripheral blood of humans with idiopathic membranous nephropathy. Mol Med Rep 2019; 20:4125-4139. [PMID: 31545426 PMCID: PMC6798000 DOI: 10.3892/mmr.2019.10671] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 07/04/2019] [Indexed: 12/14/2022] Open
Abstract
The etiology of idiopathic membranous nephropathy (IMN) is considered to be closely associated with immunoregulation and genetic factors. Circular RNAs (circRNAs) have been found to regulate gene expression in various organisms, and to play an important role in multiple physiological and pathological processes, which may be involved in the pathogenesis of IMN. The purpose of the present study was to investigate the potential relationship between circRNAs in peripheral blood and disease. The diagnoses of IMN were confirmed using electron microscopy and immunofluorescence. Total RNA was isolated and microarray analysis was used to detect the expression levels of circRNAs in the peripheral blood of patients with IMN and in normal subjects. Selected genes from the microarray were selected and verified by reverse transcription‑quantitative (RT‑q)PCR. Bioinformatics tools were applied for further functional evaluation, and the potential disease predictability of circRNAs was determined using receiver‑operating characteristic (ROC) curves. The results showed that a total of 955 differentially expressed circRNAs were found in blood samples, 645 of which were upregulated and 310 which were downregulated. In total, five candidate circRNAs were validated using RT‑qPCR analysis. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses identified numerous types of target genes and their corresponding microRNAs (miRNAs). The miRNAs identified were involved in biological processes and enriched in multiple important pathways, including the mitogen‑activated protein kinase, transforming growth factor‑β and Ras signaling pathways. The levels of circ_101319 were significantly higher (P<0.001) and exhibited promising diagnostic value in patients with IMN (area under ROC =0.89). The co‑expression network constructed for circ_101319 indicated that it may be associated with membranous nephropathy‑related pathways by mediating miRNAs. In conclusion, the present study revealed the expression and functional profile of differentially expressed circRNAs in the peripheral blood of patients with IMN, and provided new perspectives to predict and elucidate the development of IMN.
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Affiliation(s)
- Xuefeng Jin
- Department of Clinical Pharmaceutics, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Bi Deng
- Drug Clinical Trial Office, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Kun Ye
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Dongmei Ye
- Department of Clinical Pharmaceutics, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Yiyun Huang
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Xiaoyu Chen
- Department of Clinical Pharmaceutics, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Zhousheng Yang
- Department of Clinical Pharmaceutics, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Ying Chen
- Department of Clinical Pharmaceutics, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
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Zhong J, Whitman JB, Yang HC, Fogo AB. Mechanisms of Scarring in Focal Segmental Glomerulosclerosis. J Histochem Cytochem 2019; 67:623-632. [PMID: 31116068 PMCID: PMC6713971 DOI: 10.1369/0022155419850170] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 04/22/2019] [Indexed: 01/17/2023] Open
Abstract
Focal segmental glomerulosclerosis (FSGS) presents with scar in parts of some glomeruli and often progresses to global and diffuse glomerulosclerosis. Podocyte injury is the initial target in primary FSGS, induced by a circulating factor. Several gene variants, for example, APOL1, are associated with increased susceptibility to FSGS. Primary FSGS may be due to genetic mutation in key podocyte genes. Increased work stress after loss of nephrons, epigenetic mechanisms, and various profibrotic pathways can contribute to progressive sclerosis, regardless of the initial injury. The progression of FSGS lesions also involves crosstalk between podocytes and other kidney cells, such as parietal epithelial cells, glomerular endothelial cells, and even tubular epithelial cells. New insights related to these mechanisms could potentially lead to new therapeutic strategies to prevent progression of FSGS.
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Affiliation(s)
- Jianyong Zhong
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Division of Pediatric Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jacob B Whitman
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Hai-Chun Yang
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Division of Pediatric Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Agnes B Fogo
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Division of Pediatric Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee
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27
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Samsu N, Soeharto S, Rifai M, Rudijanto A. Rosmarinic acid monotherapy is better than the combination of rosmarinic acid and telmisartan in preventing podocyte detachment and inhibiting the progression of diabetic nephropathy in rats. Biologics 2019; 13:179-190. [PMID: 31564826 PMCID: PMC6722456 DOI: 10.2147/btt.s214820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 08/19/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Podocyte injury and its subsequent detachment play a critical role in the development and progression of diabetic nephropathy (DN). The objective of this study was to investigate the effect of rosmarinic acid (RA) in preventing podocyte detachment and inhibiting the progression of DN in streptozotocin (STZ)-induced diabetic in rats. METHODS We used 20 adult male Wistar rats as experimental animals, which were randomly divided into 5 groups (n=4 per group): nondiabetic rat group (negative control) and 4 groups of STZ-induced diabetic rats, namely, 1 group untreated diabetic rats (positive control) and 3 groups treated diabetic rats with RA 75 mg/kg, telmisartan (TMS) 1 mg/kg and combination of RA 75 mg/kg with TMS 1 mg/kg), respectively. After 8 weeks of therapy, urinary levels of podocin, nephrin and albumin and also serum cystatin C levels were examined by ELISA. The expression of p65 nuclear factor-kB by immunohistochemistry whereas expression of podocin and nephrin glomerulus were examined by immunofluorescence. RESULTS In the treated diabetic groups, we found that urinary level of podocin and nephrin, albumin urine excretion and serum cystatin C levels were significantly lower than the positive control group. Compared to negative controls, the group of treated diabetic rats did not differ significantly in preventing increased excretion of urinary nephrin and podocin. Meanwhile, treatment with RA monotherapy was significantly better than TMS or a combination of RA with TMS in reducing albumin excretion and preventing decreased kidney function. CONCLUSION In STZ-induced diabetic rats, RA can prevent podocyte detachment. Treatment with RA and TMS either monotherapy or in combination can inhibit the development and progression of DN. However, the combination of both did not show a synergistic effect, even have higher urinary albumin excretion and worse kidney function compared to the RA monotherapy.
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Affiliation(s)
- Nur Samsu
- Department of Internal Medicine, Division of Nephrology and Hypertension, Faculty of Medicine
| | | | - Muhaimin Rifai
- Department of Biology, Faculty of Mathematics and Sciences
| | - Achmad Rudijanto
- Department of Internal Medicine, Division of Endocrinology and Metabolic, Faculty of Medicine, Universitas Brawijaya, Malang, Indonesia
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28
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Huang X, Xue H, Ma J, Zhang Y, Zhang J, Liu Y, Qin X, Sun C. Salidroside ameliorates Adriamycin nephropathy in mice by inhibiting β-catenin activity. J Cell Mol Med 2019; 23:4443-4453. [PMID: 30993911 PMCID: PMC6533469 DOI: 10.1111/jcmm.14340] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/21/2019] [Accepted: 04/01/2019] [Indexed: 01/08/2023] Open
Abstract
Salidroside is a major phenylethanoid glycoside in Rhodiola rosea L., a traditional Chinese medicine, with multiple biological activities. It has been shown that salidroside possesses protective effects for alleviating diabetic renal dysfunction, contrast‐induced‐nephropathy and other kidney diseases. However, the involved molecular mechanism was still not understood well. Herein, we examined the protective effects of salidroside in mice with Adriamycin (ADR)‐induced nephropathy and the underlying molecular mechanism. The results showed that salidroside treatment ameliorates proteinuria; improves expressions of nephrin and podocin; and reduces kidney fibrosis and glomerulosclerosis induced by ADR. Mechanistically, ADR induces a robust accumulation of β‐catenin in the nucleus and stimulates its downstream target gene expression. The application of salidroside largely abolishes the nuclear translocation of β‐catenin and thus inhibits its activity. Furthermore, the activation of β‐catenin almost completely counteracts the protective roles of salidroside in ADR‐injured podocytes. Taken together, our data indicate that salidroside ameliorates proteinuria, renal fibrosis and podocyte injury in ADR nephropathy, which may rely on inhibition of β‐catenin signalling pathway.
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Affiliation(s)
- Xinzhong Huang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Haiyan Xue
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Jinyu Ma
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China
| | | | - Jing Zhang
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China
| | - Yue Liu
- Department of Nephrology, Traditional Chinese Medicine Hospital of Tongzhou District, Nantong, China
| | - Xiaogang Qin
- Department of Nephrology, Traditional Chinese Medicine Hospital of Tongzhou District, Nantong, China
| | - Cheng Sun
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China
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Dysregulation of miR-135a-5p promotes the development of rat pulmonary arterial hypertension in vivo and in vitro. Acta Pharmacol Sin 2019; 40:477-485. [PMID: 30038339 DOI: 10.1038/s41401-018-0076-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 05/20/2018] [Indexed: 11/08/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is the most common form of pulmonary hypertension. Pulmonary arterial remodeling is closely related to the abnormal proliferation of pulmonary artery smooth muscle cells (PASMCs), which leads to the thickening of the medial layer of muscular arteries and then results in the narrowing or occlusion of the precapillary arterioles and PAH. However, the mechanisms underlying the abnormal proliferation of PASMCs remain unclear. In this study, we established rat primary PAH models using monocrotaline (MCT) injection or hypoxic exposure, then investigated the expression patterns of seven miRNAs associated with multiple pathogenic pathways central to pulmonary hypertension, and further explored the roles and the possible mechanisms of miR-135a during the development of PAH. In the rat primary PAH models, we observed that the expression of miR-135a-5p in lungs was drastically decreased at the initial stage of PAH development after MCT administration or hypoxic exposure, but it increased by 12-fold or 10-fold at the later stage. In vitro study in PASMCs showed a similar pattern of miR-135a-5p expression, with downregulation at 6 h but upregulation at 18, 24, and 48 h after hypoxic exposure. Early, but not late, administration of a miR-135a-5p mimic inhibited hypoxia-induced proliferation of PASMCs. The protective role of early miR-135a-5p agomir in the PAH rat model further supported the hypothesis that the early decrease in the expression of miR-135a-5p contributes to the proliferation of PASMCs and development of PAH, as early administration of miR-135a-5p agomir (10 nM, i.v.) reversed the elevated mean pulmonary arterial pressure and pulmonary vascular remodeling in MCT-treated rats. We revealed that miR-135a-5p directly bound to the 3'-UTR sequence of rat transient receptor potential channel 1 (TRPC1) mRNA and decreased TRPC1 protein expression, thus inhibiting PASMC proliferation. Collectively, our data suggest that dysregulation of miR-135a-5p in PASMCs contributes to the abnormal proliferation of PASMCs and the pathogenesis of PAH. Increasing miR-135a-5p expression at the early stage of PAH is a potential new avenue to prevent PAH development.
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30
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Zhao H, Ma SX, Shang YQ, Zhang HQ, Su W. microRNAs in chronic kidney disease. Clin Chim Acta 2019; 491:59-65. [PMID: 30639583 DOI: 10.1016/j.cca.2019.01.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/09/2019] [Accepted: 01/09/2019] [Indexed: 12/15/2022]
Abstract
Chronic kidney disease (CKD) results in high morbidity and mortality worldwide causing a huge socioeconomic burden. MicroRNA (miRNA) exert critical regulatory functions by targeting downstream genes and have been associated with many pathophysiologic processes including CKD. In fact, many studies have shown that the expression of various miRNAs was significantly changed in CKD. Current investigations have focused on revealing the relationship between miRNAs and CKD states including diabetic nephropathy, lupus nephritis, focal segmental glomerulosclerosis and IgA nephropathy. In this review, we summarize the latest advances elucidating miRNA involvement in the progression of CKD and demonstrate that miRNAs have the potential to be effective biomarkers and therapeutic targets for subsequent treatment.
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Affiliation(s)
- Hui Zhao
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, Shaanxi 710069, China
| | - Shi-Xing Ma
- Department of Nephrology, Baoji Central Hospital, No. 8 Jiangtan Road, Baoji, Shaanxi 721008, China
| | - You-Quan Shang
- Department of Nephrology, Baoji Central Hospital, No. 8 Jiangtan Road, Baoji, Shaanxi 721008, China
| | - Huan-Qiao Zhang
- Department of Nephrology, Baoji Central Hospital, No. 8 Jiangtan Road, Baoji, Shaanxi 721008, China
| | - Wei Su
- Department of Nephrology, Baoji Central Hospital, No. 8 Jiangtan Road, Baoji, Shaanxi 721008, China.
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31
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Liang CL, Zhang PC, Wu JB, Liu BH, Yu-He, Lu RR, Jie-Zhou, Zhou JY. Zhen-wu-tang attenuates Adriamycin-induced nephropathy via regulating AQP2 and miR-92b. Biomed Pharmacother 2018; 109:1296-1305. [PMID: 30551379 DOI: 10.1016/j.biopha.2018.10.146] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/24/2018] [Accepted: 10/24/2018] [Indexed: 12/16/2022] Open
Abstract
Nephrotic syndrome (NS) is characterized by proteinuria, hypoalbuminemia and edema. The disorder of sodium and water metabolism is a critical mechanism regulating the origination and progression of NS. Zhen-wu-tang (ZWT) has been traditionally used to treat edema disease in China and Japan. The present study was carried out to assess the protective effect of ZWT in Adriamycin-induced (ADR) NS rats and investigate the potential anti-NS mechanisms of ZWT. We found that ZWT treatment ameliorate impaired kidney function and regulate water balance of kidney. Importantly, ZWT increased the expression of Aquaporin-2 (AQP2) which play key roles in maintaining body water homeostasis. Additionally, we determined miRNAs expression patterns in NS rats. Using bioinformatics prediction and miR-92b mimic or inhibitor in vitro, we identified miR-92b as a possible modulator of AQP2. Also we found that ZWT can decrease the expression of miR-92b and reverse the effect of miR-92b on AQP2 in vitro. We further demonstrated that miR-92b directly regulated AQP2 expression by targeting 3'-UTR of AQP2. These finding suggest that ZWT may reduce renal edema in Adriamycin-induced nephropathy via regulating AQP2 and miR-92b.
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Affiliation(s)
- Chun-Ling Liang
- Section of Immunology and Joint Immunology Program, the Second Affiliated Hospital, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Pei-Chun Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Jun-Biao Wu
- Section of Immunology and Joint Immunology Program, the Second Affiliated Hospital, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Bi-Hao Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Yu-He
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Rui-Rui Lu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Jie-Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Jiu-Yao Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
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32
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Duan Q, Sun W, Yuan H, Mu X. MicroRNA-135b-5p prevents oxygen-glucose deprivation and reoxygenation-induced neuronal injury through regulation of the GSK-3β/Nrf2/ARE signaling pathway. Arch Med Sci 2018; 14:735-744. [PMID: 30002689 PMCID: PMC6040137 DOI: 10.5114/aoms.2017.71076] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 08/30/2017] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION MicroRNAs (miRNAs) are emerging as critical regulators in the pathological process of cerebral ischemia/reperfusion injury. miRNAs play an important role in regulating neuronal survival. miR-135b-5p has been reported as an important miRNA in regulating cell apoptosis. However, the role of miR-135b-5p in regulating neuronal survival remains poorly understood. Here, we aimed to investigate the role of miR-135b-5p in cerebral ischemia/ reperfusion using an in vitro model of oxygen-glucose deprivation and reoxygenation-(OGD/R) induced neuron injury. MATERIAL AND METHODS miRNA, mRNA and protein expression was detected by real-time quantitative polymerase chain reaction and Western blot. Cell viability was detected by cell counting kit-8 and lactate dehydrogenase assays. Cell apoptosis was detected by caspase-3 activity assay. Oxidative stress was determined using commercial kits. The target of miR-135b-5p was confirmed by dual-luciferase reporter assay. RESULTS We found that miR-135b-5p expression was significantly decreased in hippocampal neurons receiving OGD/R treatment. Overexpression of miR-135b-5p markedly alleviated OGD/R-induced cell injury and oxidative stress, whereas suppression of miR-135b-5p showed the opposite effects. We observed that miR-135b-5p directly targeted the 3'-untranslated region of glycogen synthase kinase-3β (GSK-3β). We found that miR-135b-5p negatively regulates the expression of GSK-3β in hippocampal neurons. Moreover, miR-135b-5p overexpression promotes activation of nuclear factor erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE) signaling. However, the restoration of GSK-3β expression significantly reversed the protective effects of miR-135b-5p overexpression. CONCLUSIONS Overall, our results suggest that miR-135b-5p protects neurons against OGD/R-induced injury through downregulation of GSK-3β and promotion of the Nrf2/ARE signaling pathway-mediated antioxidant responses.
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Affiliation(s)
- Qiang Duan
- Department of Rehabilitation Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wei Sun
- Department of Rehabilitation Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hua Yuan
- Department of Rehabilitation Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiang Mu
- Department of Rehabilitation Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
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Huang G, Xue J, Sun X, Wang J, Yu LL. Necroptosis in 3-chloro-1, 2-propanediol (3-MCPD)-dipalmitate-induced acute kidney injury in vivo and its repression by miR-223-3p. Toxicology 2018; 406-407:33-43. [PMID: 29860048 DOI: 10.1016/j.tox.2018.05.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/11/2018] [Accepted: 05/31/2018] [Indexed: 12/31/2022]
Abstract
Fatty acid esters of 3-chloro-1, 2-propanediol (3-MCPD) are a group of processing-induced food contaminants with nephrotoxicity. This study investigated whether and how necroptosis played a role in the nephrotoxic effect of 3-MCPD-dipalmitate (2.5 g/kg BW) in C57 BL/6 mice. The results showed that the principal components in necroptosis pathway including receptor-interacting protein 1 (RIPK1), RIPK3, and mixed lineage kinase domain-like protein (MLKL) were up-regulated in 3-MCPD-dipalmitate-induced acute kidney injury (AKI). Deletion of RIPK3 or MLKL, and inhibition of RIPK1 suppressed AKI. The up-regulation of inflammatory cytokines in the kidney of 3-MCPD-dipalmitate treated mice were attenuated in RIPK3- or MLKL- deficient mice, suggesting a positive feedback loop involving necroptosis and inflammation. The microRNA analysis revealed that 38 known miRNAs and 40 novel miRNAs were differentially expressed (DE) in the kidney treated with 3-MCPD-dipalmitate. Of these miRNAs, miR-223-3p was significantly up-regulated during 3-MCPD-dipalmitate-induced AKI. In cultured mouse proximal tubular cells, a miR-223-3p mimic suppressed RIPK3 expression, which was blocked by miR-223-3p inhibitor. The luciferase reporter assay confirmed that miR-223-3p was able to inhibit RIPK3 expression by targeting the 3' un-translated region of RIPK3. These results suggest that necroptosis contributes to 3-MCPD-dipalmitate-induced acute kidney injury, and that may be attenuated by miR-223-3p.
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Affiliation(s)
- Guoren Huang
- Institute of Food and Nutraceutical Science, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jinli Xue
- Institute of Food and Nutraceutical Science, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiangjun Sun
- Institute of Food and Nutraceutical Science, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Jing Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Liangli Lucy Yu
- Department of Nutrition and Food Science, University of Maryland, 0112 Skinner Building, College Park, MD 20742, USA.
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Liu X, Li M, Hou M, Huang W, Song J. MicroRNA-135a alleviates oxygen-glucose deprivation and reoxygenation-induced injury in neurons through regulation of GSK-3β/Nrf2 signaling. J Biochem Mol Toxicol 2018; 32:e22159. [PMID: 29719095 DOI: 10.1002/jbt.22159] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 04/12/2018] [Accepted: 04/13/2018] [Indexed: 12/21/2022]
Abstract
MicroRNAs (miRNAs) have been suggested as pivotal regulators in the pathological process of cerebral ischemia and reperfusion injury. In this study, we aimed to investigate the role of miR-135a in regulating neuronal survival in cerebral ischemia and reperfusion injury using an in vitro cellular model induced by oxygen-glucose deprivation and reoxygenation (OGD/R). Our results showed that miR-135a expression was significantly decreased in neurons with OGD/R treatment. Overexpression of miR-135a significantly alleviated OGD/R-induced cell injury and oxidative stress, whereas inhibition of miR-135a showed the opposite effects. Glycogen synthase kinase-3β (GSK-3β) was identified as a potential target gene of miR-135a. miR-135a was found to inhibit GSK-3β expression, but promote the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and downstream signaling. However, overexpression of GSK-3β significantly reversed miR-135a-induced neuroprotective effect. Overall, our results suggest that miR-135a protects neurons against OGD/R-induced injury through downregulation of GSK-3β and upregulation of Nrf2 signaling.
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Affiliation(s)
- Xiaobin Liu
- Department of Neurosurgery, The Third Affiliated Hospital of Xi'an Jiaotong University, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, People's Republic of China
| | - Min Li
- Department of Neurosurgery, The Third Affiliated Hospital of Xi'an Jiaotong University, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, People's Republic of China
| | - Mingshan Hou
- Department of Neurosurgery, The Third Affiliated Hospital of Xi'an Jiaotong University, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, People's Republic of China
| | - Weidong Huang
- Department of Neurosurgery, The Third Affiliated Hospital of Xi'an Jiaotong University, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, People's Republic of China
| | - Jinning Song
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China
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Wang Y, Li H, Song SP. β-Arrestin 1/2 Aggravates Podocyte Apoptosis of Diabetic Nephropathy via Wnt/β-Catenin Pathway. Med Sci Monit 2018; 24:1724-1732. [PMID: 29572435 PMCID: PMC5881455 DOI: 10.12659/msm.905642] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND β-arrestins have been shown to play a critical role in the progression of diabetic nephropathy. Nevertheless, the potential mechanism of β-arrestins on the regulation of podocyte apoptosis has rarely been discussed. This study aimed to elucidate the regulation of β-arrestin 1/2 on podocyte apoptosis through the Wnt/b-catenin pathway. MATERIAL AND METHODS This study structured β-arrestin 1/2 down-regulated and up-regulated expression by plasmid transfection. The protein levels were detected with Western blotting, and mRNA expression was detected with RT-qPCR. The apoptotic cells were measured by flow cytometry. RESULTS β-arrestin 1/2 expression levels of podocytes were up-regulated in high-glucose-induced podocytes. β-arrestin 1/2 overexpression inhibited the expression of nephrin and podocin protein. Up-regulated β-arrestin 1/2 promoted podocyte apoptosis and p53 pathway by increasing Bax, cleaved caspase-3, and p-p53 levels in high-glucose-induced podocytes. Flow cytometry showed that the apoptotic cells were markedly higher in the b-arrestin 1/2 up-regulated group compared with the scramble group. Expression of β-catenin was increased in the β-arrestin 1/2 up-regulated group, which indicated that the Wnt/b-catenin pathway was activated. Wnt/b-catenin pathway inhibitor (Dkk1) distinctly suppressed the apoptosis induced by β-arrestin 1/2 overexpression and high glucose. CONCLUSIONS These results provide a molecular pathomechanism of β-arrestin 1/2 and Wnt/β-catenin pathway on podocyte apoptosis and provide new ideas for the treatment of diabetic nephropathy, which paves the way for the future study of diabetic nephropathy and podocytes.
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Affiliation(s)
- Yao Wang
- Department of Endocrinology, Tianjin Hospital, Tianjin, China (mainland)
| | - Han Li
- Basic Medical College of Peking University, Tianjin, China (mainland)
| | - Shu-Ping Song
- Department of Endocrinology, Tianjin Hospital, Tianjin, China (mainland)
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Effects of microRNA-135a on the epithelial-mesenchymal transition, migration and invasion of bladder cancer cells by targeting GSK3β through the Wnt/β-catenin signaling pathway. Exp Mol Med 2018; 50:e429. [PMID: 29350680 PMCID: PMC5799799 DOI: 10.1038/emm.2017.239] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 07/18/2017] [Accepted: 07/19/2017] [Indexed: 02/07/2023] Open
Abstract
This study investigated the effects of microRNA-135a (miR-135a) targeting of glycogen synthase kinase 3β (GSK3β) on the epithelial–mesenchymal transition (EMT), migration and invasion of bladder cancer (BC) cells by mediating the Wnt/β-catenin signaling pathway. BC and adjacent normal tissues were collected from 165 BC patients. Western blotting and quantitative real-time PCR were used to detect the expression of GSK3β, β-catenin, cyclinD1, E-cadherin, vimentin and miR-135a in BC tissues and cells. Cells were assigned to blank, negative control (NC), miR-135a mimics, miR-135a inhibitors, small interfering RNA (siRNA)-GSK3β or miR-135a inhibitors+siRNA-GSK3β groups. miR-135a, β-catenin, cyclinD1 and vimentin expression increased, while GSK3β and E-cadherin expression decreased in BC tissues compared with adjacent normal tissues. Compared with the blank and NC groups, the expression of miR-135a, β-catenin, cyclinD1 and vimentin was higher, and cell proliferation, migration, invasion and tumor growth were increased in the miR-135a mimics and siRNA-GSK3β groups. These groups showed an opposite trend in GSK3β and E-cadherin expression and cell apoptosis. The miR-135a inhibitors group was inversely correlated with the blank and NC groups. It was concluded that miR-135a accelerates the EMT, invasion and migration of BC cells by activating the Wnt/β-catenin signaling pathway through the downregulation of GSK3β expression.
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An Image-Based miRNA Screen Identifies miRNA-135s As Regulators of CNS Axon Growth and Regeneration by Targeting Krüppel-like Factor 4. J Neurosci 2017; 38:613-630. [PMID: 29196317 DOI: 10.1523/jneurosci.0662-17.2017] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 10/24/2017] [Accepted: 10/29/2017] [Indexed: 01/08/2023] Open
Abstract
During embryonic development, axons extend over long distances to establish functional connections. In contrast, axon regeneration in the adult mammalian CNS is limited in part by a reduced intrinsic capacity for axon growth. Therefore, insight into the intrinsic control of axon growth may provide new avenues for enhancing CNS regeneration. Here, we performed one of the first miRNome-wide functional miRNA screens to identify miRNAs with robust effects on axon growth. High-content screening identified miR-135a and miR-135b as potent stimulators of axon growth and cortical neuron migration in vitro and in vivo in male and female mice. Intriguingly, both of these developmental effects of miR-135s relied in part on silencing of Krüppel-like factor 4 (KLF4), a well known intrinsic inhibitor of axon growth and regeneration. These results prompted us to test the effect of miR-135s on axon regeneration after injury. Our results show that intravitreal application of miR-135s facilitates retinal ganglion cell (RGC) axon regeneration after optic nerve injury in adult mice in part by repressing KLF4. In contrast, depletion of miR-135s further reduced RGC axon regeneration. Together, these data identify a novel neuronal role for miR-135s and the miR-135-KLF4 pathway and highlight the potential of miRNAs as tools for enhancing CNS axon regeneration.SIGNIFICANCE STATEMENT Axon regeneration in the adult mammalian CNS is limited in part by a reduced intrinsic capacity for axon growth. Therefore, insight into the intrinsic control of axon growth may provide new avenues for enhancing regeneration. By performing an miRNome-wide functional screen, our studies identify miR-135s as stimulators of axon growth and neuron migration and show that intravitreal application of these miRNAs facilitates CNS axon regeneration after nerve injury in adult mice. Intriguingly, these developmental and regeneration-promoting effects rely in part on silencing of Krüppel-like factor 4 (KLF4), a well known intrinsic inhibitor of axon regeneration. Our data identify a novel neuronal role for the miR-135-KLF4 pathway and support the idea that miRNAs can be used for enhancing CNS axon regeneration.
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Yang X, Wu D, Du H, Nie F, Pang X, Xu Y. MicroRNA-135a is involved in podocyte injury in a transient receptor potential channel 1-dependent manner. Int J Mol Med 2017; 40:1511-1519. [PMID: 28949388 PMCID: PMC5627871 DOI: 10.3892/ijmm.2017.3152] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 09/18/2017] [Indexed: 12/03/2022] Open
Abstract
Transient receptor potential (TRP) cation channels are essential for normal cellular physiology, and their abnormal expression may lead to a number of disorders, including podocytopathy. Therefore, it is crucial to understand the mechanisms underlying the regulation of TRP channels. In the present study, microRNA (miR)-135a was found to be upregulated in patients with focal segmental glomerulosclerosis and mice treated with adriamycin (ADR). In cultured podocytes, transforming growth factor (TGF)-β and ADR were found to promote miR-135a expression. Conversely, TRP channel 1 (TRPC1) protein levels were markedly downregulated in podocytes from mice treated with ADR, as well as in cultured podocytes treated with ADR and TGF-β. Ectopic expression of miR-135a led to severe podocyte injury and disarray of the podocyte cytoskeleton, whereas podocyte-specific expression of TRPC1 was able to reverse the pathological effects of miR-135a in cultured podocytes. Moreover, using Luciferase reporter assays and western blot analysis, TRPC1 was identified as a target gene of miR-135a. To the best of our knowledge, this is the first study to demonstrate the role of TRPC1 in the development of podocyte injury and disorders of the podocyte cytoskeleton, which may contribute to the development of novel therapeutics for podocyte injury-associated kidney diseases.
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Affiliation(s)
- Xianggui Yang
- Department of Laboratory Medicine, The First Affiliated Hospital of Chengdu Medical University, Chengdu, Sichuan 610500, P.R. China
| | - Dongming Wu
- Department of Laboratory Medicine, The First Affiliated Hospital of Chengdu Medical University, Chengdu, Sichuan 610500, P.R. China
| | - Hongfei Du
- Department of Laboratory Medicine, The First Affiliated Hospital of Chengdu Medical University, Chengdu, Sichuan 610500, P.R. China
| | - Fang Nie
- Department of Laboratory Medicine, The First Affiliated Hospital of Chengdu Medical University, Chengdu, Sichuan 610500, P.R. China
| | - Xueli Pang
- Department of Laboratory Medicine, The First Affiliated Hospital of Chengdu Medical University, Chengdu, Sichuan 610500, P.R. China
| | - Ying Xu
- Department of Laboratory Medicine, The First Affiliated Hospital of Chengdu Medical University, Chengdu, Sichuan 610500, P.R. China
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Jin H, Luo S, Wang Y, Liu C, Piao Z, Xu M, Guan W, Li Q, Zou H, Tan QY, Yang ZZ, Wang Y, Wang D, Xu CX. miR-135b Stimulates Osteosarcoma Recurrence and Lung Metastasis via Notch and Wnt/β-Catenin Signaling. MOLECULAR THERAPY. NUCLEIC ACIDS 2017; 8:111-122. [PMID: 28918013 PMCID: PMC5493819 DOI: 10.1016/j.omtn.2017.06.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 06/11/2017] [Accepted: 06/12/2017] [Indexed: 01/06/2023]
Abstract
Cancer stem cells (CSCs) play an important role in osteosarcoma (OS) metastasis and recurrence, and both Wnt/β-catenin and Notch signaling are essential for the development of the biological traits of CSCs. However, the mechanism that underlies the simultaneous hyperactivation of both Wnt/β-catenin and Notch signaling in OS remains unclear. Here, we report that expression of miR-135b correlates with the overall and recurrence-free survival of OS patients, and that miR-135b has an activating effect on both Wnt/β-catenin and Notch signaling. The overexpression of miR-135b simultaneously targets multiple negative regulators of the Wnt/β-catenin and Notch signaling pathways, including glycogen synthase kinase-3 beta (GSK3β), casein kinase 1a (CK1α), and ten-eleven translocation 3 (TET3). Therefore, upregulated miR-135b promotes CSC traits, lung metastasis, and tumor recurrence in OS. Notably, antagonizing miR-135b potently inhibits OS lung metastasis, cancer cell stemness, CSC-induced tumor formation, and recurrence in xenograft animal models. These findings suggest that miR-135b mediates the constitutive activation of Wnt/β-catenin and Notch signaling, and that the inhibition of miR-135b is a novel strategy to inhibit tumor metastasis and prevent CSC-induced recurrence in OS.
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Affiliation(s)
- Hua Jin
- Department of Thoracic Surgery, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Song Luo
- Department of Orthopaedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - Yun Wang
- Department of Pathology, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - Chang Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Zhenghao Piao
- Department of Basic Medical Science, School of Medicine, Hangzhou Normal University, Hangzhou 310036, China
| | - Meng Xu
- Department of Orthopaedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - Wei Guan
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Qing Li
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Hua Zou
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Qun-You Tan
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Zhen-Zhou Yang
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Yan Wang
- Department of Orthopaedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - Dong Wang
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Cheng-Xiong Xu
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China.
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miR-135b Plays a Neuroprotective Role by Targeting GSK3β in MPP +-Intoxicated SH-SY5Y Cells. DISEASE MARKERS 2017; 2017:5806146. [PMID: 28484287 PMCID: PMC5412211 DOI: 10.1155/2017/5806146] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/07/2017] [Accepted: 03/08/2017] [Indexed: 11/17/2022]
Abstract
miR-135a-5p was reported to play a crucial role in the protective effects of hydrogen sulfide against Parkinson's disease (PD) by targeting rho-associated protein kinase 2 (ROCK2). However, the role of another member of miR-135 family (miR-135b) and the underlying mechanism in PD are still unclear. qRT-PCR and western blot showed that miR-135 was downregulated and glycogen synthase kinase 3β (GSK3β) was upregulated at mRNA and protein levels in MPP+-intoxicated SH-SY5Y cells in a dose- and time-dependent manner. MTT, TUNEL, and ELISA assays revealed that miR-135b overexpression significantly promoted cell proliferation and inhibited apoptosis and production of TNF-α and IL-1β in SH-SY5Y cells in the presence of MPP+. Luciferase reporter assay demonstrated that GSK3β was a direct target of miR-135b. Moreover, sodium nitroprusside (SNP), a GSK3β activator, dramatically reversed the effects of miR-135b upregulation on cell proliferation, apoptosis, and inflammatory cytokine production in MPP+-intoxicated SH-SY5Y cells. Taken together, miR-135b exerts a protective role via promotion of proliferation and suppression of apoptosis and neuroinflammation by targeting GSK3β in MPP+-intoxicated SH-SY5Y cells, providing a potential therapeutic target for the treatment of PD.
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Min QH, Chen XM, Zou YQ, Zhang J, Li J, Wang Y, Li SQ, Gao QF, Sun F, Liu J, Xu YM, Lin J, Huang LF, Huang B, Wang XZ. Differential expression of urinary exosomal microRNAs in IgA nephropathy. J Clin Lab Anal 2017; 32. [PMID: 28383146 DOI: 10.1002/jcla.22226] [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: 01/18/2017] [Accepted: 03/06/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Immunoglobulin A nephropathy (IgAN) is the most common type of primary glomerulonephritis in the world. Reliable biomarkers are required for the non-invasive diagnosis and monitoring of IgAN. This study aims to investigate the difference in urinary exosomal microRNA (miRNA) expression profiles between patients with IgA nephropathy (IgAN) and healthy controls, which may provide clues to identify novel potential non-invasive miRNA biomarkers for renal diseases. METHODS Urine samples were collected from eighteen healthy controls and eighteen patients with IgAN. Differential centrifugation was performed to isolate exosomes from urine samples. High-throughput sequencing and real-time quantitative polymerase chain reaction (RT-qPCR) were sequentially used to screen and further validate miRNA expression profiles in urinary exosomes of patients with IgAN in two independent cohorts. RESULTS Urinary exosomes were successfully isolated to obtain exosomal miRNAs. MiR-215-5p and miR-378i were significantly upregulated in urinary exosomes of patients with IgAN compared with healthy controls (P<.01), while miR-29c and miR-205-5p were significantly downregulated (P<.05). MiR-215-5p, miR-378i, miR-365b-3p and miR-135b-5p were found to have altered expression in patients with IgAN from validation cohorts, which was consistent with the high-throughput sequencing analysis. CONCLUSION This study suggests that there is a significant difference in urinary exosomal miRNA profiles between patients with IgAN and healthy controls. These exosomal miRNAs, such as miR-29c, miR-146a and miR-205 may potentially serve as novel non-invasive biomarkers for IgAN.
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Affiliation(s)
- Qing-Hua Min
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xi-Min Chen
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ye-Qing Zou
- Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing Zhang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing Li
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yan Wang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shu-Qi Li
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qiu-Fang Gao
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Fan Sun
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing Liu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yan-Mei Xu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jin Lin
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Lin-Feng Huang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Bo Huang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiao-Zhong Wang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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Peng T, Chang X, Wang J, Zhen J, Yang X, Hu Z. Protective effects of tacrolimus on podocytes in early diabetic nephropathy in rats. Mol Med Rep 2017; 15:3172-3178. [PMID: 28339051 DOI: 10.3892/mmr.2017.6354] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 12/05/2016] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to investigate the protective effect of tacrolimus on early podocyte damage in rats with diabetic nephropathy (DN). A total of 38 normal male Sprague‑Dawley rats were randomly divided into four groups: Normal control group (group N; n=8), DN group (n=10), tacrolimus (FK506) treatment group (group F; n=10), benazepril (Lotensin) treatment group (group L; n=10). The rats in groups DN, F and L were administered with streptozotocin (STZ; 60 mg/kg) by intraperitoneal injection to establish the diabetic rat model. After 4 weeks, the diabetic rat model was established, and rats in the different groups were administered intragrastically with the respective drugs. Blood glucose (BS), body weight (BW) and 24‑h urine protein were detected every 4 weeks, serum creatinine (SCr), blood urea nitrogen (BUN) and kidney weight/body weight (KW/BW) were measured at the end of the 8 weeks of drug treatment. Renal pathological changes were observed under a light microscope and electron microscope. Expression of nephrin, which is a podocyte‑specific marker, was detected using western blot analysis. The results showed that the levels of SCr, BUN, KW/BW and 24‑h urine protein in groups D, F and L were significantly higher, compared with those in group N (P<0.05). No significant differences were found between groups F and L for the above indicators, with the exception of BS. However, all indices were significantly lower, compared with those in group DN (P<0.05). Renal pathological expression was normal in group N under light microscopy. There were significant increases in the glomerular volume, proliferative mesangial cells, width of the mesangial area and thickness of the basement membrane in group DN, however, all the above pathological characteristics were reduced in groups F and L, compared with group DN (P<0.05). No significant difference was found between groups F and L. A widened glomerular basement membrane, and disorder, widening and fusion of podocyte processes were observed under the electron microscope in group DN, however, these were reduced in groups F and L, compared with group DN (P<0.05). The results of the western blot analysis showed that the expression of nephrin decreased by 60.1% in group DN, compared with group N, and significant recovery in the expression of nephrin was observed in groups F and L (P<0.05). Tacrolimus reduced urinary protein and slowed the progression of DN, partially by recovering the protein expression of nephrin in the renal tissue of diabetic rats, and maintaining the integrity of the structure and function of podocytes.
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Affiliation(s)
- Tao Peng
- Department of Nephrology, Shandong University Qilu Hospital, Jinan, Shandong 250012, P.R. China
| | - Xiangdi Chang
- Department of Nephrology, Affiliated Hospital of Binzhou Medical School, Yantai, Shandong 264003, P.R. China
| | - Jie Wang
- Department of Nephrology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Junhui Zhen
- Department of Pathology, Shandong University Qilu Hospital, Jinan, Shandong 250012, P.R. China
| | - Xiangdong Yang
- Department of Nephrology, Shandong University Qilu Hospital, Jinan, Shandong 250012, P.R. China
| | - Zhao Hu
- Department of Nephrology, Shandong University Qilu Hospital, Jinan, Shandong 250012, P.R. China
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Leierer J, Mayer G, Kronbichler A. Primary focal segmental glomerulosclerosis: miRNAs and targeted therapies. Eur J Clin Invest 2016; 46:954-964. [PMID: 27651302 DOI: 10.1111/eci.12676] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 09/07/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND Primary focal segmental glomerulosclerosis (FSGS) is a common cause of nephrotic syndrome. AIMS The pathogenic steps leading to primary FSGS are still obscure, although evidence suggests that circulatory factor(s) are involved in the onset of disease. RESULTS Recent technical advances allow the analysis of miRNA expression in tissues and body fluids, leading to reports of miRNAs involved in the molecular mechanisms of FSGS-aetiopathogenesis. Moreover, investigations have also highlighted miRNAs that might serve as biomarkers for primary FSGS. DISCUSSION/CONCLUSIONS The aim of this review was to summarize reports showing a direct relation between miRNAs and primary FSGS. In addition, the impact of identified miRNAs on treatment response, prediction of the disease onset as well as the regulation in different disease activities is summarized.
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Affiliation(s)
- Johannes Leierer
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Innsbruck, Austria.
| | - Gert Mayer
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Innsbruck, Austria
| | - Andreas Kronbichler
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Innsbruck, Austria
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Xue M, Zhou Y, Liu X, Ni D, Hu Y, Long Y, Ju P, Zhou Q. Proliferation of metanephric mesenchymal cells is inhibited by miR-743a-mediated WT1 suppression in vitro. Mol Med Rep 2016; 14:4315-4320. [DOI: 10.3892/mmr.2016.5762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 09/08/2016] [Indexed: 11/06/2022] Open
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Caronia-Brown G, Anderegg A, Awatramani R. Expression and functional analysis of the Wnt/beta-catenin induced mir-135a-2 locus in embryonic forebrain development. Neural Dev 2016; 11:9. [PMID: 27048518 PMCID: PMC4822265 DOI: 10.1186/s13064-016-0065-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 04/01/2016] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Brain size and patterning are dependent on dosage-sensitive morphogen signaling pathways - yet how these pathways are calibrated remains enigmatic. Recent studies point to a new role for microRNAs in tempering the spatio-temporal range of morphogen functions during development. Here, we investigated the role of miR-135a, derived from the mir-135a-2 locus, in embryonic forebrain development. METHOD 1. We characterized the expression of miR-135a, and its host gene Rmst, by in situ hybridization (ish). 2. We conditionally ablated, or activated, beta-catenin in the dorsal forebrain to determine if this pathway was necessary and/or sufficient for Rmst/miR-135a expression. 3. We performed bioinformatics analysis to unveil the most predicted pathways targeted by miR-135a. 4. We performed gain and loss of function experiments on mir-135a-2 and analyzed by ish the expression of key markers of cortical hem, choroid plexus, neocortex and hippocampus. RESULTS 1. miR-135a, embedded in the host long non-coding transcript Rmst, is robustly expressed, and functional, in the medial wall of the embryonic dorsal forebrain, a Wnt and TGFβ/BMP-rich domain. 2. Canonical Wnt/beta-catenin signaling is critical for the expression of Rmst and miR-135a, and the cortical hem determinant Lmx1a. 3. Bioinformatics analyses reveal that the Wnt and TGFβ/BMP cascades are among the top predicted pathways targeted by miR-135a. 4. Analysis of mir-135a-2 null embryos showed that dorsal forebrain development appeared normal. In contrast, modest mir-135a-2 overexpression, in the early dorsal forebrain, resulted in a phenotype resembling that of mutants with Wnt and TGFβ/BMP deficits - a smaller cortical hem and hippocampus primordium associated with a shorter neocortex as well as a less convoluted choroid plexus. Interestingly, late overexpression of mir-135a-2 revealed no change. CONCLUSIONS All together, our data suggests the existence of a Wnt/miR-135a auto-regulatory loop, which could serve to limit the extent, the duration and/or intensity of the Wnt and, possibly, the TGFβ/BMP pathways.
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Affiliation(s)
- Giuliana Caronia-Brown
- Department of Neurology and Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, 7-113 Lurie Bldg., 303 E. Superior Street, Chicago, IL, 60611, USA.
| | - Angela Anderegg
- Department of Neurology and Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, 7-113 Lurie Bldg., 303 E. Superior Street, Chicago, IL, 60611, USA
| | - Rajeshwar Awatramani
- Department of Neurology and Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, 7-113 Lurie Bldg., 303 E. Superior Street, Chicago, IL, 60611, USA
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