1
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Wu HH, Leng S, Sergi C, Leng R. How MicroRNAs Command the Battle against Cancer. Int J Mol Sci 2024; 25:5865. [PMID: 38892054 PMCID: PMC11172831 DOI: 10.3390/ijms25115865] [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: 04/24/2024] [Revised: 05/23/2024] [Accepted: 05/26/2024] [Indexed: 06/21/2024] Open
Abstract
MicroRNAs (miRNAs) are small RNA molecules that regulate more than 30% of genes in humans. Recent studies have revealed that miRNAs play a crucial role in tumorigenesis. Large sets of miRNAs in human tumors are under-expressed compared to normal tissues. Furthermore, experiments have shown that interference with miRNA processing enhances tumorigenesis. Multiple studies have documented the causal role of miRNAs in cancer, and miRNA-based anticancer therapies are currently being developed. This review primarily focuses on two key points: (1) miRNAs and their role in human cancer and (2) the regulation of tumor suppressors by miRNAs. The review discusses (a) the regulation of the tumor suppressor p53 by miRNA, (b) the critical role of the miR-144/451 cluster in regulating the Itch-p63-Ago2 pathway, and (c) the regulation of PTEN by miRNAs. Future research and the perspectives of miRNA in cancer are also discussed. Understanding these pathways will open avenues for therapeutic interventions targeting miRNA regulation.
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Affiliation(s)
- Hong Helena Wu
- 370 Heritage Medical Research Center, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2S2, Canada;
| | - Sarah Leng
- Department of Laboratory Medicine and Pathology (5B4. 09), University of Alberta, Edmonton, AB T6G 2B7, Canada (C.S.)
| | - Consolato Sergi
- Department of Laboratory Medicine and Pathology (5B4. 09), University of Alberta, Edmonton, AB T6G 2B7, Canada (C.S.)
- Division of Anatomical Pathology, Children’s Hospital of Eastern Ontario (CHEO), University of Ottawa, 401 Smyth Road, Ottawa, ON K1H 8L1, Canada
| | - Roger Leng
- 370 Heritage Medical Research Center, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2S2, Canada;
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2
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Abolhasanzadeh N, Sarabandi S, Dehghan B, Karamad V, Avci CB, Shademan B, Nourazarian A. Exploring the intricate relationship between miRNA dysregulation and breast cancer development: insights into the impact of environmental chemicals. Front Immunol 2024; 15:1333563. [PMID: 38807590 PMCID: PMC11130376 DOI: 10.3389/fimmu.2024.1333563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 04/03/2024] [Indexed: 05/30/2024] Open
Abstract
Breast cancer stands as the most prevalent form of cancer among women globally, influenced by a combination of genetic and environmental factors. Recent studies have investigated changes in microRNAs (miRNAs) during breast cancer progression and the potential impact of environmental chemicals on miRNA expression. This review aims to provide an updated overview of miRNA alterations in breast cancer and to explore their potential association with environmental chemicals. We will discuss the current knowledge on dysregulated miRNAs in breast cancer, including both upregulated and downregulated miRNAs. Additionally, we will review the influence of environmental chemicals, such as endocrine-disrupting compounds, heavy metals, and air pollutants, on miRNA expression and their potential contribution to breast cancer development. This review aims to advance our understanding of the complex molecular mechanisms underlying miRNA dysregulation in breast cancer by comprehensively examining miRNA alterations and their association with environmental chemicals. This knowledge is crucial for the development of targeted therapies and preventive measures. Furthermore, identifying specific miRNAs affected by environmental chemicals may allow the prediction of individual susceptibility to breast cancer and the design of personalized intervention strategies.
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Affiliation(s)
- Narges Abolhasanzadeh
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Sajed Sarabandi
- Department of Computer Science Leiden University, Leiden, Netherlands
| | - Bahar Dehghan
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Vahidreza Karamad
- Department of Medical Biology, Ege University Medical School, Izmir, Türkiye
| | - Cigir Biray Avci
- Department of Medical Biology, Ege University Medical School, Izmir, Türkiye
| | - Behrouz Shademan
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Nourazarian
- Department of Basic Medical Sciences, Khoy University of Medical Sciences, Khoy, Iran
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3
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Häfner SJ, Jansson MD, Altinel K, Andersen KL, Abay-Nørgaard Z, Ménard P, Fontenas M, Sørensen DM, Gay DM, Arendrup FS, Tehler D, Krogh N, Nielsen H, Kraushar ML, Kirkeby A, Lund AH. Ribosomal RNA 2'-O-methylation dynamics impact cell fate decisions. Dev Cell 2023; 58:1593-1609.e9. [PMID: 37473757 DOI: 10.1016/j.devcel.2023.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 02/16/2023] [Accepted: 06/26/2023] [Indexed: 07/22/2023]
Abstract
Translational regulation impacts both pluripotency maintenance and cell differentiation. To what degree the ribosome exerts control over this process remains unanswered. Accumulating evidence has demonstrated heterogeneity in ribosome composition in various organisms. 2'-O-methylation (2'-O-me) of rRNA represents an important source of heterogeneity, where site-specific alteration of methylation levels can modulate translation. Here, we examine changes in rRNA 2'-O-me during mouse brain development and tri-lineage differentiation of human embryonic stem cells (hESCs). We find distinct alterations between brain regions, as well as clear dynamics during cortex development and germ layer differentiation. We identify a methylation site impacting neuronal differentiation. Modulation of its methylation levels affects ribosome association of the fragile X mental retardation protein (FMRP) and is accompanied by an altered translation of WNT pathway-related mRNAs. Together, these data identify ribosome heterogeneity through rRNA 2'-O-me during early development and differentiation and suggest a direct role for ribosomes in regulating translation during cell fate acquisition.
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Affiliation(s)
- Sophia J Häfner
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark.
| | - Martin D Jansson
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Kübra Altinel
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Kasper L Andersen
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Zehra Abay-Nørgaard
- Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW) and Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Patrice Ménard
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Martin Fontenas
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Daniel M Sørensen
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - David M Gay
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Frederic S Arendrup
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Disa Tehler
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Nicolai Krogh
- Department of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Henrik Nielsen
- Department of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | | | - Agnete Kirkeby
- Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW) and Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, 2200 Copenhagen, Denmark; Wallenberg Center for Molecular Medicine, Department of Experimental Medical Science, Lund University, 22184 Lund, Sweden
| | - Anders H Lund
- Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark.
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4
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Eisen B, Binah O. Modeling Duchenne Muscular Dystrophy Cardiomyopathy with Patients' Induced Pluripotent Stem-Cell-Derived Cardiomyocytes. Int J Mol Sci 2023; 24:ijms24108657. [PMID: 37240001 DOI: 10.3390/ijms24108657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is an X-linked progressive muscle degenerative disease caused by mutations in the dystrophin gene, resulting in death by the end of the third decade of life at the latest. A key aspect of the DMD clinical phenotype is dilated cardiomyopathy, affecting virtually all patients by the end of the second decade of life. Furthermore, despite respiratory complications still being the leading cause of death, with advancements in medical care in recent years, cardiac involvement has become an increasing cause of mortality. Over the years, extensive research has been conducted using different DMD animal models, including the mdx mouse. While these models present certain important similarities to human DMD patients, they also have some differences which pose a challenge to researchers. The development of somatic cell reprograming technology has enabled generation of human induced pluripotent stem cells (hiPSCs) which can be differentiated into different cell types. This technology provides a potentially endless pool of human cells for research. Furthermore, hiPSCs can be generated from patients, thus providing patient-specific cells and enabling research tailored to different mutations. DMD cardiac involvement has been shown in animal models to include changes in gene expression of different proteins, abnormal cellular Ca2+ handling, and other aberrations. To gain a better understanding of the disease mechanisms, it is imperative to validate these findings in human cells. Furthermore, with the recent advancements in gene-editing technology, hiPSCs provide a valuable platform for research and development of new therapies including the possibility of regenerative medicine. In this article, we review the DMD cardiac-related research performed so far using human hiPSCs-derived cardiomyocytes (hiPSC-CMs) carrying DMD mutations.
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Affiliation(s)
- Binyamin Eisen
- Cardiac Research Laboratory, Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Ofer Binah
- Cardiac Research Laboratory, Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
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5
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Shinde SS, Ahmed S, Malik JA, Hani U, Khanam A, Ashraf Bhat F, Ahmad Mir S, Ghazwani M, Wahab S, Haider N, Almehizia AA. Therapeutic Delivery of Tumor Suppressor miRNAs for Breast Cancer Treatment. BIOLOGY 2023; 12:biology12030467. [PMID: 36979159 PMCID: PMC10045434 DOI: 10.3390/biology12030467] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023]
Abstract
The death rate from breast cancer (BC) has dropped due to early detection and sophisticated therapeutic options, yet drug resistance and relapse remain barriers to effective, systematic treatment. Multiple mechanisms underlying miRNAs appear crucial in practically every aspect of cancer progression, including carcinogenesis, metastasis, and drug resistance, as evidenced by the elucidation of drug resistance. Non-coding RNAs called microRNAs (miRNAs) attach to complementary messenger RNAs and degrade them to inhibit the expression and translation to proteins. Evidence suggests that miRNAs play a vital role in developing numerous diseases, including cancer. They affect genes critical for cellular differentiation, proliferation, apoptosis, and metabolism. Recently studies have demonstrated that miRNAs serve as valuable biomarkers for BC. The contrast in the expression of miRNAs in normal tissue cells and tumors suggest that miRNAs are involved in breast cancer. The important aspect behind cancer etiology is the deregulation of miRNAs that can specifically influence cellular physiology. The main objective of this review is to emphasize the role and therapeutic capacity of tumor suppressor miRNAs in BC and the advancement in the delivery system that can deliver miRNAs specifically to cancerous cells. Various approaches are used to deliver these miRNAs to the cancer cells with the help of carrier molecules, like nanoparticles, poly D, L-lactic-co-glycolic acid (PLGA) particles, PEI polymers, modified extracellular vesicles, dendrimers, and liposomes. Additionally, we discuss advanced strategies of TS miRNA delivery techniques such as viral delivery, self-assembled RNA-triple-helix hydrogel drug delivery systems, and hyaluronic acid/protamine sulfate inter-polyelectrolyte complexes. Subsequently, we discuss challenges and prospects on TS miRNA therapeutic delivery in BC management so that miRNAs will become a routine technique in developing individualized patient profiles.
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Affiliation(s)
- Sonali S Shinde
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, India
| | - Sakeel Ahmed
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Ahmedabad 382355, India
| | - Jonaid Ahmad Malik
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Guwahati 781101, India
- Department of Biomedical Engineering, Indian Institute of Technology, Rupnagar 140001, India
| | - Umme Hani
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Afreen Khanam
- Department of Pharmacognosy and Phytochemistry, Jamia Hamdard, New Delhi 110062, India
| | | | - Suhail Ahmad Mir
- Department of Pharmaceutical Sciences, University of Kashmir, Jammu and Kashmir, Hazratbal, Srinagar 190006, India
| | - Mohammed Ghazwani
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Shadma Wahab
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Nazima Haider
- Department of Pathology, College of Medicine, King Khalid University, Abha 62529, Saudi Arabia
| | - Abdulrahman A Almehizia
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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6
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Yedigaryan L, Sampaolesi M. Extracellular vesicles and Duchenne muscular dystrophy pathology: Modulators of disease progression. Front Physiol 2023; 14:1130063. [PMID: 36891137 PMCID: PMC9987248 DOI: 10.3389/fphys.2023.1130063] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 01/31/2023] [Indexed: 02/16/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is a devastating disorder and is considered to be one of the worst forms of inherited muscular dystrophies. DMD occurs as a result of mutations in the dystrophin gene, leading to progressive muscle fiber degradation and weakness. Although DMD pathology has been studied for many years, there are aspects of disease pathogenesis and progression that have not been thoroughly explored yet. The underlying issue with this is that the development of further effective therapies becomes stalled. It is becoming more evident that extracellular vesicles (EVs) may contribute to DMD pathology. EVs are vesicles secreted by cells that exert a multitude of effects via their lipid, protein, and RNA cargo. EV cargo (especially microRNAs) is also said to be a good biomarker for identifying the status of specific pathological processes that occur in dystrophic muscle, such as fibrosis, degeneration, inflammation, adipogenic degeneration, and dilated cardiomyopathy. On the other hand, EVs are becoming more prominent vehicles for custom-engineered cargos. In this review, we will discuss the possible contribution of EVs to DMD pathology, their potential use as biomarkers, and the therapeutic efficacy of both, EV secretion inhibition and custom-engineered cargo delivery.
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Affiliation(s)
- Laura Yedigaryan
- Translational Cardiomyology Laboratory, Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Maurilio Sampaolesi
- Translational Cardiomyology Laboratory, Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Histology and Medical Embryology Unit, Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
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7
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Sanders LM, Chandra R, Zebarjadi N, Beale HC, Lyle AG, Rodriguez A, Kephart ET, Pfeil J, Cheney A, Learned K, Currie R, Gitlin L, Vengerov D, Haussler D, Salama SR, Vaske OM. Machine learning multi-omics analysis reveals cancer driver dysregulation in pan-cancer cell lines compared to primary tumors. Commun Biol 2022; 5:1367. [PMID: 36513728 PMCID: PMC9747808 DOI: 10.1038/s42003-022-04075-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 10/06/2022] [Indexed: 12/15/2022] Open
Abstract
Cancer cell lines have been widely used for decades to study biological processes driving cancer development, and to identify biomarkers of response to therapeutic agents. Advances in genomic sequencing have made possible large-scale genomic characterizations of collections of cancer cell lines and primary tumors, such as the Cancer Cell Line Encyclopedia (CCLE) and The Cancer Genome Atlas (TCGA). These studies allow for the first time a comprehensive evaluation of the comparability of cancer cell lines and primary tumors on the genomic and proteomic level. Here we employ bulk mRNA and micro-RNA sequencing data from thousands of samples in CCLE and TCGA, and proteomic data from partner studies in the MD Anderson Cell Line Project (MCLP) and The Cancer Proteome Atlas (TCPA), to characterize the extent to which cancer cell lines recapitulate tumors. We identify dysregulation of a long non-coding RNA and microRNA regulatory network in cancer cell lines, associated with differential expression between cell lines and primary tumors in four key cancer driver pathways: KRAS signaling, NFKB signaling, IL2/STAT5 signaling and TP53 signaling. Our results emphasize the necessity for careful interpretation of cancer cell line experiments, particularly with respect to therapeutic treatments targeting these important cancer pathways.
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Affiliation(s)
- Lauren M. Sanders
- grid.205975.c0000 0001 0740 6917Department of Biomolecular Engineering, UC Santa Cruz, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA
| | - Rahul Chandra
- grid.34477.330000000122986657Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA USA
| | - Navid Zebarjadi
- grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917Department of Molecular, Cell and Developmental Biology, UC Santa Cruz, Santa Cruz, CA USA
| | - Holly C. Beale
- grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917Department of Molecular, Cell and Developmental Biology, UC Santa Cruz, Santa Cruz, CA USA
| | - A. Geoffrey Lyle
- grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917Department of Molecular, Cell and Developmental Biology, UC Santa Cruz, Santa Cruz, CA USA
| | - Analiz Rodriguez
- grid.241054.60000 0004 4687 1637Department of Neurosurgery, University of Arkansas for Medical Sciences, Little Rock, AR USA
| | - Ellen Towle Kephart
- grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA
| | - Jacob Pfeil
- grid.205975.c0000 0001 0740 6917Department of Biomolecular Engineering, UC Santa Cruz, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA
| | - Allison Cheney
- grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917Department of Molecular, Cell and Developmental Biology, UC Santa Cruz, Santa Cruz, CA USA
| | - Katrina Learned
- grid.205975.c0000 0001 0740 6917Department of Biomolecular Engineering, UC Santa Cruz, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA
| | - Rob Currie
- grid.205975.c0000 0001 0740 6917Department of Biomolecular Engineering, UC Santa Cruz, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA
| | - Leonid Gitlin
- grid.266102.10000 0001 2297 6811Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, California USA
| | - David Vengerov
- grid.419799.b0000 0004 4662 4679Oracle Labs, Oracle Corporation, Pleasanton, CA USA
| | - David Haussler
- grid.205975.c0000 0001 0740 6917Department of Biomolecular Engineering, UC Santa Cruz, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA
| | - Sofie R. Salama
- grid.205975.c0000 0001 0740 6917Department of Biomolecular Engineering, UC Santa Cruz, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917Howard Hughes Medical Institute, UC Santa Cruz, Santa Cruz, CA USA
| | - Olena M. Vaske
- grid.205975.c0000 0001 0740 6917UC Santa Cruz Genomics Institute, Santa Cruz, CA USA ,grid.205975.c0000 0001 0740 6917Department of Molecular, Cell and Developmental Biology, UC Santa Cruz, Santa Cruz, CA USA
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8
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Whyte SS, Karns R, Min K, Cho J, Lee S, Lake C, Bondoc A, Yoon J, Shin S. Integrated analysis using ToppMiR uncovers altered miRNA- mRNA regulatory networks in pediatric hepatocellular carcinoma-A pilot study. Cancer Rep (Hoboken) 2022; 6:e1685. [PMID: 35859536 PMCID: PMC9875636 DOI: 10.1002/cnr2.1685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 06/23/2022] [Accepted: 07/12/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pediatric hepatocellular carcinoma (HCC) is a group of liver cancers whose mechanisms behind their pathogenesis and progression are poorly understood. AIM We aimed to identify alterations in the expression of miRNAs and their putative target mRNAs in not only tumor tissues of patients with pediatric HCC but also in corresponding non-tumorous background livers by using liver tissues without underlying liver disease as a control. METHODS AND RESULTS We performed a small-scale miRNA and mRNA profiling of pediatric HCC (consisting of fibrolamellar carcinoma [FLC] and non-FLC HCC) and paired liver tissues to identify miRNAs whose expression levels differed significantly from control livers without underlying liver disease. ToppMiR was used to prioritize both miRNAs and their putative target mRNAs in a gene-annotation network, and the mRNA profile was used to refine the prioritization. Our analysis generated prioritized lists of miRNAs and mRNAs from the following three sets of analyses: (a) pediatric HCC versus control; (b) FLC versus control; and (c) corresponding non-tumorous background liver tissues from the same patients with pediatric HCC versus control. No liver disease liver tissues were used as the control group for all analyses. Many miRNAs whose expressions were deregulated in pediatric HCC were consistent with their roles in adult HCC and/or other non-hepatic cancers. Our gene ontology analysis of target mRNAs revealed enrichment of biological processes related to the sustenance and propagation of cancer and significant downregulation of metabolic processes. CONCLUSION Our pilot study indicates that alterations in miRNA-mRNA networks were detected in not only tumor tissues but also corresponding non-tumorous liver tissues from patients with pediatric HCC, suggesting multi-faceted roles of miRNAs in disease progression. Our results may lead to novel hypotheses for future large-scale studies.
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Affiliation(s)
- Senyo S. Whyte
- Division of Pediatric General and Thoracic SurgeryCincinnati Children's Hospital Medical CenterCincinnatiOhioUSA
| | - Rebekah Karns
- Division of Gastroenterology, Hepatology & NutritionCincinnati Children's Hospital Medical CenterCincinnatiOhioUSA
| | - Kyung‐Won Min
- Department of BiologyGangneung‐Wonju National UniversityGangneungRepublic of Korea
| | - Jung‐Hyun Cho
- Department of Biochemistry and Molecular BiologyMedical University of South CarolinaCharlestonSouth CarolinaUSA
| | - Sanghoon Lee
- Division of Pediatric General and Thoracic SurgeryCincinnati Children's Hospital Medical CenterCincinnatiOhioUSA
| | - Charissa Lake
- Division of Pediatric General and Thoracic SurgeryCincinnati Children's Hospital Medical CenterCincinnatiOhioUSA
| | - Alexander Bondoc
- Division of Pediatric General and Thoracic SurgeryCincinnati Children's Hospital Medical CenterCincinnatiOhioUSA,Department of SurgeryUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
| | - Je‐Hyun Yoon
- Department of Biochemistry and Molecular BiologyMedical University of South CarolinaCharlestonSouth CarolinaUSA
| | - Soona Shin
- Division of Pediatric General and Thoracic SurgeryCincinnati Children's Hospital Medical CenterCincinnatiOhioUSA,Department of SurgeryUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
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9
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Reichelt-Wurm S, Pregler M, Wirtz T, Kretz M, Holler K, Banas B, Banas MC. The Interplay of NEAT1 and miR-339-5p Influences on Mesangial Gene Expression and Function in Various Diabetic-Associated Injury Models. Noncoding RNA 2022; 8:ncrna8040052. [PMID: 35893235 PMCID: PMC9326603 DOI: 10.3390/ncrna8040052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/05/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022] Open
Abstract
Mesangial cells (MCs), substantial cells for architecture and function of the glomerular tuft, take a key role in progression of diabetic kidney disease (DKD). Despite long standing researches and the need for novel therapies, the underlying regulatory mechanisms in MCs are elusive. This applies in particular to long non-coding RNAs (lncRNA) but also microRNAs (miRNAs). In this study, we investigated the expression of nuclear paraspeckle assembly transcript 1 (NEAT1), a highly conserved lncRNA, in several diabetes in-vitro models using human MCs. These cells were treated with high glucose, TGFβ, TNAα, thapsigargin, or tunicamycin. We analyzed the implication of NEAT1 silencing on mesangial cell migration, proliferation, and cell size as well as on mRNA and miRNA expression. Here, the miRNA hsa-miR-339-5p was not only identified as a potential interaction partner for NEAT1 but also for several coding genes. Furthermore, overexpression of hsa-miR-339-5p leads to a MC phenotype comparable to a NEAT1 knockdown. In-silico analyses also underline a relevant role of NEAT1 and hsa-miR-339-5p in mesangial physiology, especially in the context of DKD.
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Affiliation(s)
- Simone Reichelt-Wurm
- Department of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany; (M.P.); (T.W.); (K.H.); (B.B.); (M.C.B.)
- Correspondence: ; Tel.: +49-941-944-7388
| | - Matthias Pregler
- Department of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany; (M.P.); (T.W.); (K.H.); (B.B.); (M.C.B.)
| | - Tobias Wirtz
- Department of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany; (M.P.); (T.W.); (K.H.); (B.B.); (M.C.B.)
| | - Markus Kretz
- Regensburg Center for Biochemistry (RCB), University of Regensburg, 93053 Regensburg, Germany;
| | - Kathrin Holler
- Department of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany; (M.P.); (T.W.); (K.H.); (B.B.); (M.C.B.)
| | - Bernhard Banas
- Department of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany; (M.P.); (T.W.); (K.H.); (B.B.); (M.C.B.)
| | - Miriam C. Banas
- Department of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany; (M.P.); (T.W.); (K.H.); (B.B.); (M.C.B.)
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10
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Zou HY, Guo L, Zhang B, Chen S, Wu XR, Liu XD, Xu XY, Li BY, Chen S, Xu NJ, Sun S. Aberrant miR-339-5p/neuronatin signaling causes prodromal neuronal calcium dyshomeostasis in mutant presenilin mice. J Clin Invest 2022; 132:e149160. [PMID: 35426376 PMCID: PMC9012292 DOI: 10.1172/jci149160] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 02/23/2022] [Indexed: 12/22/2022] Open
Abstract
Mushroom spine loss and calcium dyshomeostasis are early hallmark events of age-related neurodegeneration, such as Alzheimer's disease (AD), that are connected with neuronal hyperactivity in early pathology of cognitive brain areas. However, it remains elusive how these key events are triggered at the molecular level for the neuronal abnormality that occurs at the initial stage of disease. Here, we identify downregulated miR-339-5p and its upregulated target protein, neuronatin (Nnat), in cortex neurons from the presenilin-1 M146V knockin (PSEN1-M146V KI) mouse model of familial AD (FAD). Inhibition of miR-339-5p or overexpression of Nnat recapitulates spine loss and endoplasmic reticulum calcium overload in cortical neurons with the PSEN1 mutation. Conversely, either overexpression of miR-339-5p or knockdown of Nnat restores spine morphogenesis and calcium homeostasis. We used fiber photometry recording during the object-cognitive process to further demonstrate that the PSEN1 mutant causes defective habituation in neuronal reaction in the retrosplenial cortex and that this can be rescued by restoring the miR-339-5p/Nnat pathway. Our findings thus reveal crucial roles of the miR-339-5p/Nnat pathway in FAD that may serve as potential diagnostic and therapeutic targets for early pathogenesis.
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Affiliation(s)
- Hao-Yu Zou
- Department of Neurology and Institute of Neurology, Ruijin Hospital
| | - Lin Guo
- Research Center of Translational Medicine, Shanghai Children’s Hospital, Department of Anatomy and Physiology, and
| | - Bei Zhang
- Department of Neurology and Institute of Neurology, Ruijin Hospital
| | - Si Chen
- Research Center of Translational Medicine, Shanghai Children’s Hospital, Department of Anatomy and Physiology, and
| | - Xin-Rong Wu
- Department of Neurology and Institute of Neurology, Ruijin Hospital
| | - Xian-Dong Liu
- Department of Neurology and Institute of Neurology, Ruijin Hospital
- Research Center of Translational Medicine, Shanghai Children’s Hospital, Department of Anatomy and Physiology, and
| | - Xin-Yu Xu
- Research Center of Translational Medicine, Shanghai Children’s Hospital, Department of Anatomy and Physiology, and
| | - Bin-Yin Li
- Department of Neurology and Institute of Neurology, Ruijin Hospital
| | - Shengdi Chen
- Department of Neurology and Institute of Neurology, Ruijin Hospital
| | - Nan-Jie Xu
- Research Center of Translational Medicine, Shanghai Children’s Hospital, Department of Anatomy and Physiology, and
- Shanghai Key Laboratory of Reproductive Medicine, and
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Suya Sun
- Department of Neurology and Institute of Neurology, Ruijin Hospital
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11
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USP49-mediated histone H2B deubiquitination regulates HCT116 cell proliferation through MDM2-p53 axis. Mol Cell Biol 2022; 42:e0043421. [PMID: 35072515 DOI: 10.1128/mcb.00434-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Post-translational histone modifications play important roles in regulating chromatin structure and transcriptional regulation. Histone H2B monoubiquitination (H2Bub) is an essential regulator for transcriptional elongation and ongoing transcription. Here we reported that USP49, as a histone H2B deubiquitinase, is involved in HCT116 cell proliferation through modulating MDM2-p53 pathway genes. USP49 knockout contributes to increased HCT116 cell proliferation and migration. Importantly, USP49 knockout stimulated MDM2 transcriptional level and then inhibited the mRNA levels of TP53 target genes. Conversely, overexpression of USP49 suppressed MDM2 gene expression and then promoted TP53 target genes. Moreover, chromatin immunoprecipitation revealed that USP49 directly bound to the promoter of MDM2 gene. USP49 knockout increased the H2Bub enrichment at MDM2 gene whereas USP49 overexpression downregulated the H2Bub level at MDM2 gene. Therefore, our findings indicated that USP49-mediated H2B deubiquitination controls the transcription of MDM2-p53 axis genes in the process of HCT116 cell proliferation.
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12
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Wu Q, Yin CH, Li Y, Cai JQ, Yang HY, Huang YY, Zheng YX, Xiong K, Yu HL, Lu AP, Wang KX, Guan DG, Chen YP. Detecting Critical Functional Ingredients Group and Mechanism of Xuebijing Injection in Treating Sepsis. Front Pharmacol 2021; 12:769190. [PMID: 34938184 PMCID: PMC8687625 DOI: 10.3389/fphar.2021.769190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/04/2021] [Indexed: 11/13/2022] Open
Abstract
Sepsis is a systemic inflammatory reaction caused by various infectious or noninfectious factors, which can lead to shock, multiple organ dysfunction syndrome, and death. It is one of the common complications and a main cause of death in critically ill patients. At present, the treatments of sepsis are mainly focused on the controlling of inflammatory response and reduction of various organ function damage, including anti-infection, hormones, mechanical ventilation, nutritional support, and traditional Chinese medicine (TCM). Among them, Xuebijing injection (XBJI) is an important derivative of TCM, which is widely used in clinical research. However, the molecular mechanism of XBJI on sepsis is still not clear. The mechanism of treatment of "bacteria, poison and inflammation" and the effects of multi-ingredient, multi-target, and multi-pathway have still not been clarified. For solving this issue, we designed a new systems pharmacology strategy which combines target genes of XBJI and the pathogenetic genes of sepsis to construct functional response space (FRS). The key response proteins in the FRS were determined by using a novel node importance calculation method and were condensed by a dynamic programming strategy to conduct the critical functional ingredients group (CFIG). The results showed that enriched pathways of key response proteins selected from FRS could cover 95.83% of the enriched pathways of reference targets, which were defined as the intersections of ingredient targets and pathogenetic genes. The targets of the optimized CFIG with 60 ingredients could be enriched into 182 pathways which covered 81.58% of 152 pathways of 1,606 pathogenetic genes. The prediction of CFIG targets showed that the CFIG of XBJI could affect sepsis synergistically through genes such as TAK1, TNF-α, IL-1β, and MEK1 in the pathways of MAPK, NF-κB, PI3K-AKT, Toll-like receptor, and tumor necrosis factor signaling. Finally, the effects of apigenin, baicalein, and luteolin were evaluated by in vitro experiments and were proved to be effective in reducing the production of intracellular reactive oxygen species in lipopolysaccharide-stimulated RAW264.7 cells, significantly. These results indicate that the novel integrative model can promote reliability and accuracy on depicting the CFIGs in XBJI and figure out a methodological coordinate for simplicity, mechanism analysis, and secondary development of formulas in TCM.
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Affiliation(s)
- Qi- Wu
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Chuan-Hui Yin
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
| | - Yi Li
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jie-Qi Cai
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
| | - Han-Yun Yang
- The First Clinical Medical College of Southern Medical University, Guangzhou, China
| | - Ying-Ying Huang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yi-Xu Zheng
- Department of Ophthalmology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ke Xiong
- Department of Ophthalmology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hai-Lang Yu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
| | - Ai-Ping Lu
- Institute of Integrated Bioinformedicine and Translational Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong China
| | - Ke-Xin Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,National Key Clinical Specialty/Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Neurosurgery Institute, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Dao-Gang Guan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
| | - Yu-Peng Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
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13
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Bi X, Zhang Y, Yu Y, Yuan J, Xu S, Liu F, Ye J, Liu P. MiRNA-339-5p promotes isoproterenol-induced cardiomyocyte hypertrophy by targeting VCP to activate the mTOR signaling. Cell Biol Int 2021; 46:288-299. [PMID: 34854520 DOI: 10.1002/cbin.11731] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/09/2021] [Accepted: 11/27/2021] [Indexed: 12/20/2022]
Abstract
MicroRNAs (miRNAs) regulate multiple biological processes and participate in various cardiovascular diseases. This study aims to investigate the role of miR-339-5p in cardiomyocyte hypertrophy and the involved mechanism. Neonatal rat cardiomyocytes (NRCMs) were cultured and stimulated with isoproterenol (ISO). The hypertrophic responses were monitored by measuring the cell surface area and expression of hypertrophic markers including β-myosin heavy chain (β-MHC) and atrial natriuretic factor (ANF). Bioinformatic prediction tools and dual-luciferase reporter assay were performed to identify the target gene of miR-339-5p. Quantitative real-time polymerase chain reaction and western blot analysis were used to determine the levels of miR-339-5p and its downstream effectors. Our data showed that miR-339-5p was upregulated during cardiomyocyte hypertrophy triggered by ISO. MiR-339-5p overexpression resulted in enlargement of cell size and increased the levels of hypertrophic markers. In contrast, inhibition of miR-339-5p significantly attenuated ISO-induced hypertrophic responses of NRCMs. Valosin-containing protein (VCP), a suppressor of cardiac hypertrophy via inhibiting mechanistic target of rapamycin (mTOR) signaling, was validated as a target of miR-339-5p. MiR-339-5p suppressed VCP protein expression, leading to elevated phosphorylation of mTOR and ribosomal protein S6 kinase (S6K). VCP depletion activated the mTOR/S6K cascade and could compromise the anti-hypertrophic effects of miR-339-5p inhibitor. Additionally, the hypertrophic responses caused by miR-339-5p was alleviated in the presence of mTOR inhibitor rapamycin. In conclusion, our research revealed that miR-339-5p promoted ISO-induced cardiomyocyte hypertrophy by targeting VCP to activate the mTOR signaling, suggesting a promising therapeutic intervention by interfering miR-339-5p.
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Affiliation(s)
- Xueying Bi
- Department of Pharmacology and Toxicology, Sun Yat-Sen University, Guangdong, Guangzhou, China
| | - Yuhong Zhang
- Department of Pharmacology and Toxicology, Sun Yat-Sen University, Guangdong, Guangzhou, China
| | - Youhui Yu
- Department of Pharmacology and Toxicology, Sun Yat-Sen University, Guangdong, Guangzhou, China
| | - Jing Yuan
- Department of Pharmacology and Toxicology, Sun Yat-Sen University, Guangdong, Guangzhou, China
| | - Siting Xu
- Department of Pharmacology and Toxicology, Sun Yat-Sen University, Guangdong, Guangzhou, China
| | - Fang Liu
- Department of Pharmacology and Toxicology, Sun Yat-Sen University, Guangdong, Guangzhou, China
| | - Jiantao Ye
- Department of Pharmacology and Toxicology, Sun Yat-Sen University, Guangdong, Guangzhou, China
| | - Peiqing Liu
- Department of Pharmacology and Toxicology, Sun Yat-Sen University, Guangdong, Guangzhou, China
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14
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Gartz M, Beatka M, Prom MJ, Strande JL, Lawlor MW. Cardiomyocyte-produced miR-339-5p mediates pathology in Duchenne muscular dystrophy cardiomyopathy. Hum Mol Genet 2021; 30:2347-2361. [PMID: 34270708 PMCID: PMC8600005 DOI: 10.1093/hmg/ddab199] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/19/2021] [Accepted: 07/07/2021] [Indexed: 02/07/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is an X-linked genetic disease characterized by severe, progressive muscle wasting. Cardiomyopathy has emerged as a leading cause of death in patients with DMD. The mechanisms contributing to DMD cardiac disease remain under investigation and specific therapies available are lacking. Our prior work has shown that DMD-iPSC-derived cardiomyocytes (DMD-iCMs) are vulnerable to oxidative stress injury and chronic exposure to DMD-secreted exosomes impaired the cell's ability to protect against stress. In this study, we sought to examine a mechanism by which DMD cardiac exosomes impair cellular response through altering important stress-responsive genes in the recipient cells. Here, we report that DMD-iCMs secrete exosomes containing altered microRNA (miR) profiles in comparison to healthy controls. In particular, miR-339-5p was upregulated in DMD-iCMs, DMD exosomes and mdx mouse cardiac tissue. Restoring dystrophin in DMD-iCMs improved the cellular response to stress and was associated with downregulation of miR-339-5p, suggesting that it is disease-specific. Knockdown of miR-339-5p was associated with increased expression of MDM2, GSK3A and MAP2K3, which are genes involved in important stress-responsive signaling pathways. Finally, knockdown of miR-339-5p led to mitochondrial protection and a reduction in cell death in DMD-iCMs, indicating miR-339-5p is involved in direct modulation of stress-responsiveness. Together, these findings identify a potential mechanism by which exosomal miR-339-5p may be modulating cell signaling pathways that are important for robust stress responses. Additionally, these exosomal miRs may provide important disease-specific targets for future therapeutic advancements for the management and diagnosis of DMD cardiomyopathy.
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Affiliation(s)
- Melanie Gartz
- Department of Cell Biology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Cardiovascular Research Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Neuroscience Research Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Margaret Beatka
- Neuroscience Research Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Mariah J Prom
- Neuroscience Research Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Jennifer L Strande
- Department of Cell Biology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Cardiovascular Research Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Michael W Lawlor
- Department of Cell Biology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Neuroscience Research Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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15
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Jansson MD, Häfner SJ, Altinel K, Tehler D, Krogh N, Jakobsen E, Andersen JV, Andersen KL, Schoof EM, Ménard P, Nielsen H, Lund AH. Regulation of translation by site-specific ribosomal RNA methylation. Nat Struct Mol Biol 2021; 28:889-899. [PMID: 34759377 DOI: 10.1038/s41594-021-00669-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 09/03/2021] [Indexed: 11/09/2022]
Abstract
Ribosomes are complex ribozymes that interpret genetic information by translating messenger RNA (mRNA) into proteins. Natural variation in ribosome composition has been documented in several organisms and can arise from several different sources. A key question is whether specific control over ribosome heterogeneity represents a mechanism by which translation can be regulated. We used RiboMeth-seq to demonstrate that differential 2'-O-methylation of ribosomal RNA (rRNA) represents a considerable source of ribosome heterogeneity in human cells, and that modification levels at distinct sites can change dynamically in response to upstream signaling pathways, such as MYC oncogene expression. Ablation of one prominent methylation resulted in altered translation of select mRNAs and corresponding changes in cellular phenotypes. Thus, differential rRNA 2'-O-methylation can give rise to ribosomes with specialized function. This suggests a broader mechanism where the specific regulation of rRNA modification patterns fine tunes translation.
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Affiliation(s)
- Martin D Jansson
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark.
| | - Sophia J Häfner
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Kübra Altinel
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Disa Tehler
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Nicolai Krogh
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Emil Jakobsen
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Jens V Andersen
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Kasper L Andersen
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Erwin M Schoof
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Patrice Ménard
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Nielsen
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Anders H Lund
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark.
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16
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circGLI3 Inhibits Oxidative Stress by Regulating the miR-339-5p/VEGFA Axis in IPEC-J2 Cells. BIOMED RESEARCH INTERNATIONAL 2021; 2021:1086206. [PMID: 34423029 PMCID: PMC8376464 DOI: 10.1155/2021/1086206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/10/2021] [Accepted: 07/26/2021] [Indexed: 12/11/2022]
Abstract
As a new type of noncoding RNA, circular RNA (circRNA) is stable in cells and not easily degraded. This type of RNA can also competitively bind miRNAs to regulate the expression of their target genes. The role of circRNA in the mechanism of intestinal oxidative stress (OS) in weaned piglets is still unclear. In our research, diquat (DQ) was used to induce OS in small intestinal epithelial cells (IPEC-J2) to construct an OS cell model. Mechanistically, dual luciferase reporter assays, fluorescence in situ hybridization (FISH), and western blotting were performed to confirm that circGLI3 directly sponged miR-339-5p and regulated the expression of VEGFA. Overexpression of circGLI3 promoted IPEC-J2 cell proliferation, increased the proportion of S-phase cells (P < 0.01), and reduced reactive oxygen species (ROS) generation when IPEC-J2 cells were subjected to OS. circGLI3 can increase the activity of glutathione peroxidase (GSH-Px) and the total antioxidant capacity (T-AOC) in IPEC-J2 cells and reduce the malondialdehyde (MDA) content and levels of inflammatory factors. Therefore, overexpression of circGLI3 reduced oxidative damage, whereas miR-339-5p mimic counteracted these effects. We identified a regulatory network composed of circGLI3, miR-339-5p, and VEGFA and verified that circGLI3 regulates VEGFA by directly binding miR-339-5p. The expression of VEGFA affects IPEC-J2 cell proliferation, cell cycle progression, and ROS content and changes the levels of antioxidant enzymes and inflammatory factors. This study reveals the molecular mechanism by which circGLI3 inhibits OS in the intestine of piglets and provides a theoretical basis for further research on the effect of OS on intestinal function.
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17
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Liang Y, Lu Q, Li W, Zhang D, Zhang F, Zou Q, Chen L, Tong Y, Liu M, Wang S, Li W, Ren X, Xu P, Yang Z, Dong S, Zhang B, Huang Y, Li D, Wang H, Yu W. Reactivation of tumour suppressor in breast cancer by enhancer switching through NamiRNA network. Nucleic Acids Res 2021; 49:8556-8572. [PMID: 34329471 PMCID: PMC8421228 DOI: 10.1093/nar/gkab626] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 06/08/2021] [Accepted: 07/17/2021] [Indexed: 12/31/2022] Open
Abstract
Dysfunction of Tumour Suppressor Genes (TSGs) is a common feature in carcinogenesis. Epigenetic abnormalities including DNA hypermethylation or aberrant histone modifications in promoter regions have been described for interpreting TSG inactivation. However, in many instances, how TSGs are silenced in tumours are largely unknown. Given that miRNA with low expression in tumours is another recognized signature, we hypothesize that low expression of miRNA may reduce the activity of TSG related enhancers and further lead to inactivation of TSG during cancer development. Here, we reported that low expression of miRNA in cancer as a recognized signature leads to loss of function of TSGs in breast cancer. In 157 paired breast cancer and adjacent normal samples, tumour suppressor gene GPER1 and miR-339 are both downregulated in Luminal A/B and Triple Negative Breast Cancer subtypes. Mechanistic investigations revealed that miR-339 upregulates GPER1 expression in breast cancer cells by switching on the GPER1 enhancer, which can be blocked by enhancer deletion through the CRISPR/Cas9 system. Collectively, our findings reveal novel mechanistic insights into TSG dysfunction in cancer development, and provide evidence that reactivation of TSG by enhancer switching may be a promising alternative strategy for clinical breast cancer treatment.
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Affiliation(s)
- Ying Liang
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Qi Lu
- Department of Gynaecology, Jinshan Hospital of Fudan University, Shanghai 201508, P. R. China
| | - Wei Li
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Dapeng Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
| | - Fanglin Zhang
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Qingping Zou
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Lu Chen
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Ying Tong
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Mengxing Liu
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Shaoxuan Wang
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Wenxuan Li
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Xiaoguang Ren
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Peng Xu
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Zhicong Yang
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Shihua Dong
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Baolong Zhang
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Yanni Huang
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Daqiang Li
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
| | - Wenqiang Yu
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute and Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
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18
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Serum levels of miR-21-5p and miR-339-5p associate with occupational trichloroethylene hypersensitivity syndrome. J Occup Med Toxicol 2021; 16:19. [PMID: 34001196 PMCID: PMC8127200 DOI: 10.1186/s12995-021-00308-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 05/03/2021] [Indexed: 12/29/2022] Open
Abstract
Background Trichloroethylene (TCE) hypersensitivity syndrome (THS) is a dose-independent and potentially life-threatening disease. In this study, we sought to identify THS-related miRNAs and evaluate its potential clinical value. Methods Serum samples of five patients and five matched TCE contacts were used for screening differential miRNAs. Another 34 patients and 34 matched TCE contacts were used for verifying significantly differential miRNAs with SYBR™ Green PCR and MGB PCR. The diagnostic model based on these miRNAs was established via the support vector machine (SVM) algorithm. Correlation between differential miRNAs and liver function was analyzed via the Spearman correlation test. Results A total of 69 miRNAs was found to be differentially expressed. MiR-21-5p and miR-339-5p were verified to have significant higher expressions in patients. The sensitivity, specificity and accuracy of disease model were 100, 75 and 86%, respectively. The two miRNAs showed significant correlations with liver function. Conclusion These findings suggested that miRNAs profiles in serum of THS patients had changed significantly, and miR-21-5p and miR-339-5p were associated with THS. Supplementary Information The online version contains supplementary material available at 10.1186/s12995-021-00308-0.
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19
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Pan H, Rui X, Wei W, Shao S, Zhu Y. Prognostic value of miR-339-5p in patients with prostate cancer and its effects on tumor progression. Exp Ther Med 2021; 21:390. [PMID: 33680112 DOI: 10.3892/etm.2021.9821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/24/2020] [Indexed: 12/15/2022] Open
Abstract
Prostate cancer places a serious health burden on males. The present study aimed to explore the potential prognostic significance and biological function of microRNA (miR)-339-5p in patients with prostate cancer. The expression of miR-339-5p was detected in prostate cancer tissues and cell lines by using reverse transcription-quantitative PCR. Kaplan-Meier survival curves and Cox regression analyses were used to investigate the prognostic significance of miR-339-5p in prostate cancer. The Cell Counting Kit-8 assay was used to determine the effect of miR-339-5p on prostate cancer cell proliferation. Transwell assays were used to assess the effect of miR-339-5p on cell migration and invasion. The results indicated that the expression of miR-339-5p was downregulated in prostate cancer tissues and cell lines. Downregulation of miR-339-5p was significantly associated with the Gleason score, lymph node metastasis and TNM stage. Patients with high miR-339-5p expression levels had a longer survival time than those with low expression levels. Multivariate Cox regression analysis indicated that miR-339-5p may be an independent prognostic factor for the overall survival of patients with prostate cancer. Overexpression of miR-339-5p inhibited the proliferation, migration and invasion of prostate cancer cells. Taken together, these results indicated that miR-339-5p functions as a suppressor gene in prostate cancer and acts by inhibiting cell proliferation, migration and invasion of prostate cancer cells. miR-339-5p may serve as an independent prognostic biomarker and therapeutic target for the treatment of prostate cancer.
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Affiliation(s)
- Huafeng Pan
- Department of Urology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China.,Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315021, P.R. China
| | - Xin Rui
- Department of Urology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China.,Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315021, P.R. China
| | - Wei Wei
- Department of Urology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China.,Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315021, P.R. China
| | - Siliang Shao
- Department of Urology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China.,Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315021, P.R. China
| | - Yudi Zhu
- Department of Urology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China.,Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315021, P.R. China
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20
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MicroRNA-Based Therapeutics for Drug-Resistant Colorectal Cancer. Pharmaceuticals (Basel) 2021; 14:ph14020136. [PMID: 33567635 PMCID: PMC7915952 DOI: 10.3390/ph14020136] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/29/2021] [Accepted: 02/04/2021] [Indexed: 12/13/2022] Open
Abstract
Although therapeutic approaches for patients with colorectal cancer (CRC) have improved in the past decades, the problem of drug resistance still persists and acts as a major obstacle for effective therapy. Many studies have shown that drug resistance is related to reduced drug uptake, modification of drug targets, and/or transformation of cell cycle checkpoints. A growing body of evidence indicates that several microRNAs (miRNAs) may contribute to the drug resistance to chemotherapy, targeted therapy, and immunotherapy by regulating the drug resistance-related target genes in CRC. These drug resistance-related miRNAs may be used as promising biomarkers for predicting drug response or as potential therapeutic targets for treating patients with CRC. In this review, we summarized the recent discoveries regarding anti-cancer drug-related miRNAs and their molecular mechanisms in CRC. Furthermore, we discussed the challenges associated with the clinical application of miRNAs as biomarkers for the diagnosis of drug-resistant patients and as therapeutic targets for CRC treatment.
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21
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Potter ML, Hill WD, Isales CM, Hamrick MW, Fulzele S. MicroRNAs are critical regulators of senescence and aging in mesenchymal stem cells. Bone 2021; 142:115679. [PMID: 33022453 PMCID: PMC7901145 DOI: 10.1016/j.bone.2020.115679] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/16/2020] [Accepted: 07/28/2020] [Indexed: 01/10/2023]
Abstract
MicroRNAs (miRNAs) have recently come under scrutiny for their role in various age-related diseases. Similarly, cellular senescence has been linked to disease and aging. MicroRNAs and senescence likely play an intertwined role in driving these pathologic states. In this review, we present the connection between these two drivers of age-related disease concerning mesenchymal stem cells (MSCs). First, we summarize key miRNAs that are differentially expressed in MSCs and other musculoskeletal lineage cells during senescence and aging. Additionally, we also reviewed miRNAs that are regulated via traditional senescence-associated secretory phenotype (SASP) cytokines in MSC. Lastly, we summarize miRNAs that have been found to target components of the cell cycle arrest pathways inherently activated in senescence. This review attempts to highlight potential miRNA targets for regenerative medicine applications in age-related musculoskeletal disease.
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Affiliation(s)
- Matthew L Potter
- Department of Orthopedics, Augusta University, Augusta, GA, United States of America
| | - William D Hill
- Medical University of South Carolina, Charleston, SC 29403, United States of America; Ralph H Johnson Veterans Affairs Medical Center, Charleston, SC, 29403, United States of America
| | - Carlos M Isales
- Department of Orthopedics, Augusta University, Augusta, GA, United States of America; Department of Medicine, Augusta University, Augusta, GA, United States of America; Institute of Healthy Aging, Augusta University, Augusta, GA, United States of America
| | - Mark W Hamrick
- Department of Orthopedics, Augusta University, Augusta, GA, United States of America; Institute of Healthy Aging, Augusta University, Augusta, GA, United States of America; Department of Cell Biology and Anatomy, Augusta University, Augusta, GA, United States of America
| | - Sadanand Fulzele
- Department of Orthopedics, Augusta University, Augusta, GA, United States of America; Department of Medicine, Augusta University, Augusta, GA, United States of America; Institute of Healthy Aging, Augusta University, Augusta, GA, United States of America; Department of Cell Biology and Anatomy, Augusta University, Augusta, GA, United States of America.
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22
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Cross-talk between the ER pathway and the lncRNA MAFG-AS1/miR-339-5p/ CDK2 axis promotes progression of ER+ breast cancer and confers tamoxifen resistance. Aging (Albany NY) 2020; 12:20658-20683. [PMID: 33098638 PMCID: PMC7655217 DOI: 10.18632/aging.103966] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 07/07/2020] [Indexed: 12/12/2022]
Abstract
Hormone receptor-positive breast cancer accounts for around 75% of breast cancers. The estrogen receptor pathway promotes tumor progression and endocrine resistance. Recently, the cross-talk between the ER signaling pathway and cell cycle regulation has been identified. It is necessary to determine the underlying molecular mechanisms involved in the ER signaling pathway and find new target genes for prognosis and drug resistance in ER+ breast cancer. In this study, lncRNA MAFG-AS1 was shown to be up-regulated and associated with poor prognosis in ER+ breast cancer. Functionally, down-regulation of MAFG-AS1 could inhibit cell proliferation and promote apoptosis. In addition, MAFG-AS1 which contained an estrogen-responsive element could promote CDK2 expression by sponging miR-339-5p. Subsequently, MAFG-AS1 and CDK2 were found to be up-regulated in tamoxifen-resistant MCF-7 cells. Cross-talk between the ER signaling pathway and cell cycle conducted by MAFG-AS1 and CDK2 could promote tamoxifen resistance. In conclusion, our study indicated that estrogen-responsive lncRNA MAFG-AS1 up-regulated CDK2 by sponging miR-339-5p, which promoted ER+ breast cancer proliferation. Cross-talk between the ER signaling pathway and cell cycle suggested that lncRNA MAFG-AS1 is a potential biomarker and therapeutic target in ER+ breast cancer. CDK2 inhibitors may be applied to endocrine resistance therapy.
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23
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Xiong LL, Qin YX, Xiao QX, Jin Y, Al-Hawwas M, Ma Z, Wang YC, Belegu V, Zhou XF, Xue LL, Du RL, Liu J, Bai X, Wang TH. MicroRNA339 Targeting PDXK Improves Motor Dysfunction and Promotes Neurite Growth in the Remote Cortex Subjected to Spinal Cord Transection. Front Cell Dev Biol 2020; 8:577. [PMID: 32793586 PMCID: PMC7386314 DOI: 10.3389/fcell.2020.00577] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 06/15/2020] [Indexed: 02/05/2023] Open
Abstract
Spinal cord injury (SCI) is a fatal disease that can cause severe disability. Cortical reorganization subserved the recovery of spontaneous function after SCI, although the potential molecular mechanism in this remote control is largely unknown. Therefore, using proteomics analysis, RNA interference/overexpression, and CRISPR/Cas9 in vivo and in vitro, we analyzed how the molecular network functions in neurological improvement, especially in the recovery of motor function after spinal cord transection (SCT) via the remote regulation of cerebral cortex. We discovered that the overexpression of pyridoxal kinase (PDXK) in the motor cortex enhanced neuronal growth and survival and improved locomotor function in the hindlimb. In addition, PDXK was confirmed as a target of miR-339 but not miR-124. MiR-339 knockout (KO) significantly increased the neurite outgrowth and decreased cell apoptosis in cortical neurons. Moreover, miR-339 KO rats exhibited functional recovery indicated by improved Basso, Beattie, and Bresnehan (BBB) score. Furthermore, bioinformatics prediction showed that PDXK was associated with GAP43, a crucial molecule related to neurite growth and functional improvement. The current research therefore confirmed that miR-339 targeting PDXK facilitated neurological recovery in the motor cortex of SCT rats, and the underlying mechanism was associated with regulating GAP43 in the remote cortex of rats subjected to SCT. These findings may uncover a new understanding of remoting cortex control following SCI and provide a new therapeutic strategy for the recovery of SCI in future clinical trials.
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Affiliation(s)
- Liu-Lin Xiong
- Institute of Neurobiological Disease, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China.,National Traditional Chinese Medicine Clinical Research Base and Western Medicine Translational Medicine Research Center, Department of Cardiac and Cerebral Diseases, Department of Anesthesiology, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, China.,School of Pharmacy and Medical Sciences, Sansom Institute, Division of Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Yan-Xia Qin
- Department of Histology and Neurobiology, College of Preclinic and Forensic Medicine, Sichuan University, Chengdu, China
| | - Qiu-Xia Xiao
- National Traditional Chinese Medicine Clinical Research Base and Western Medicine Translational Medicine Research Center, Department of Cardiac and Cerebral Diseases, Department of Anesthesiology, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Yuan Jin
- Animal Zoology Department, Institute of Neuroscience, Kunming Medical University, Kunming, China
| | - Mohammed Al-Hawwas
- School of Pharmacy and Medical Sciences, Sansom Institute, Division of Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Zheng Ma
- Animal Zoology Department, Institute of Neuroscience, Kunming Medical University, Kunming, China
| | - You-Cui Wang
- Institute of Neurobiological Disease, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Visar Belegu
- International Center for Spinal Cord Injury, Kennedy Krieger Institute, Baltimore, MD, United States.,Department of Neurology and Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Xin-Fu Zhou
- School of Pharmacy and Medical Sciences, Sansom Institute, Division of Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Lu-Lu Xue
- Animal Zoology Department, Institute of Neuroscience, Kunming Medical University, Kunming, China
| | - Ruo-Lan Du
- Institute of Neurobiological Disease, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jia Liu
- Animal Zoology Department, Institute of Neuroscience, Kunming Medical University, Kunming, China
| | - Xue Bai
- National Traditional Chinese Medicine Clinical Research Base and Western Medicine Translational Medicine Research Center, Department of Cardiac and Cerebral Diseases, Department of Anesthesiology, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Ting-Hua Wang
- Institute of Neurobiological Disease, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China.,Animal Zoology Department, Institute of Neuroscience, Kunming Medical University, Kunming, China.,Department of Histology and Neurobiology, College of Preclinic and Forensic Medicine, Sichuan University, Chengdu, China
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24
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Browning JWL, Rambo TME, McKay BC. Comparative genomic analysis of the 3' UTR of human MDM2 identifies multiple transposable elements, an RLP24 pseudogene and a cluster of novel repeat sequences that arose during primate evolution. Gene 2020; 741:144557. [PMID: 32171824 DOI: 10.1016/j.gene.2020.144557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/08/2020] [Indexed: 01/09/2023]
Abstract
The MDM2 oncogene is a negative regulator of the p53 tumour suppressor. This relationship appears to have originated over a billion years ago. The human MDM2 gene encodes a variety of mRNAs with exceptionally long 3'UTRs (up to 5.7 kb); however, it was unclear whether MDM2 3'UTRs from other species are similarly long or conserved at the sequence level. Here, we report that all but one of the primate species most closely related to humans (greater and lesser apes) have similarly long 3'UTRs with high sequence similarity across their entire length. More distantly related species (Old world monkeys and new world monkeys) tend to have shorter MDM2 3'UTRs homologous to the corresponding position of the human MDM2 3'UTR while non-primate species exhibit little similarity at all. Remarkably, DNA sequences downstream of the shorter primate 3'UTRs are syntenic with distal regions in the human and other ape MDM2 3'UTRs. These homologous non-transcribed intergenic and transcribed 3'UTR-encoding regions are comprised of a variety of transposable elements, an RLP24 pseudogene and a cluster of novel repeat sequences suggestive of another unknown transposable element. Our analysis suggests that the primary difference between long and short MDM2 3'UTRs is a switch in polyA site usage to include conserved transposable elements that remain intergenic in more distantly related primates. It will be important to determine the relative contribution of these elements to post-transcriptional and translational regulation of MDM2 and hence p53-mediated tumour suppression.
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Affiliation(s)
| | | | - Bruce C McKay
- Department of Biology and Institute of Biochemistry, Ottawa, ON, Canada.
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25
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Huang E, Fu J, Yu Q, Xie P, Yang Z, Ji H, Wang L, Luo G, Zhang Y, Li K. CircRNA hsa_circ_0004771 promotes esophageal squamous cell cancer progression via miR-339-5p/CDC25A axis. Epigenomics 2020; 12:587-603. [PMID: 32050790 DOI: 10.2217/epi-2019-0404] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Aim: The role of circRNAs in esophageal squamous cell cancer (ESCC) remains unclear. Materials & methods: Here we profiled six pair plasma circRNA in ESCC based on RNA sequencing, and then verified the elevation of hsa_circ_0004771 in 20 cancer tissues and 105 pair case-control plasma samples by quantitative reverse transcriptase PCR. Results: The upregulation of hsa_circ_0004771 was correlated with heavier tumor burden and poor prognosis, knockdown of it inhibited the ESCC cells proliferation both in vitro and in vivo. Mechanistically, hsa_circ_0004771 positively regulated CDC25A by acting as a molecular sponge of miR-339-5p and rescue assay confirmed this regulatory relationship. Conclusion: These results suggested that hsa_circ_0004771 can serve as a general less-invasive biomarker and may provide diagnostic and prognostic value in carcinoma.
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Affiliation(s)
- Enmin Huang
- Department of General Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, PR China
| | - Junhui Fu
- Department of Surgical Oncology, Shantou Central Hospital, Shantou, Guangdong, PR China
| | - Qiuyan Yu
- Department of Public Health, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Peixin Xie
- Department of Surgical Oncology, Shantou Central Hospital, Shantou, Guangdong, PR China
| | - Zhongxian Yang
- Department of Medical Imaging, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, PR China
| | - Huanlin Ji
- Department of Public Health, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Li Wang
- Department of Public Health, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Ganfeng Luo
- Department of Public Health, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Yanting Zhang
- Department of Public Health, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Ke Li
- Department of Public Health, Shantou University Medical College, Shantou, Guangdong, PR China
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26
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Chen FR, Sha SM, Wang SH, Shi HT, Dong L, Liu D, Cheng Y, An M, Wang Y, Zhang J. RP11-81H3.2 promotes gastric cancer progression through miR-339-HNRNPA1 interaction network. Cancer Med 2020; 9:2524-2534. [PMID: 32052594 PMCID: PMC7131847 DOI: 10.1002/cam4.2867] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 12/11/2022] Open
Abstract
Recent studies have demonstrated that various long non-coding RNAs (lncRNAs) participate in the gastric cancer (GC) development and metastasis. Some lncRNAs exert their regulatory function by interacting with microRNAs. Here we identified a novel lncRNA RP11-81H3.2 that was highly expressed in the GC tissue and cell lines. RP11-81H3.2 knockdown significantly inhibited the proliferation, migration, and invasion of GC cells. Mechanistically, we demonstrated that RP11-81H3.2 directly interacted with miR-339 while miR-339 regulated the HNRNPA1 expression by targeting HRRNPA1 3'-UTR. RP11-81H3.2-miR-339-HNRNPA1 interaction network regulated the GC cell proliferation, migration, and invasion. Moreover, our results confirmed that RP11-81H3.2 knockdown suppressed the tumor growth of GC in a xenograft model in vivo. In summary, the results suggest that RP11-81H3.2 functions as an oncogene in GC and could be utilized as a promising diagnosis and therapeutic marker for GC treatment.
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Affiliation(s)
- Fen-Rong Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Su-Mei Sha
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shen-Hao Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hai-Tao Shi
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lei Dong
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Dong Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Cheng
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Miao An
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jun Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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27
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Mei L, He M, Zhang C, Miao J, Wen Q, Liu X, Xu Q, Ye S, Ye P, Huang H, Lin J, Zhou X, Zhao K, Chen D, Zhou J, Li C, Li H. Paeonol attenuates inflammation by targeting HMGB1 through upregulating miR-339-5p. Sci Rep 2019; 9:19370. [PMID: 31852965 PMCID: PMC6920373 DOI: 10.1038/s41598-019-55980-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/02/2019] [Indexed: 12/26/2022] Open
Abstract
Sepsis is a life-threatening disease caused by infection. Inflammation is a key pathogenic process in sepsis. Paeonol, an active ingredient in moutan cortex (a Chinese herb), has many pharmacological activities, such as anti-inflammatory and antitumour actions. Previous studies have indicated that paeonol inhibits the expression of HMGB1 and the transcriptional activity of NF-κB. However, its underlying mechanism is still unknown. In this study, microarray assay and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) results confirmed that paeonol could significantly up-regulate the expression of miR-339-5p in RAW264.7 cells stimulated by LPS. Dual-luciferase assays indicated that miR-339-5p interacted with the 3′ untranslated region (3′-UTR) of HMGB1. Western blot, immunofluorescence and enzyme-linked immunosorbent assay (ELISA) analyses indicated that miR-339-5p mimic and siHMGB1 both negatively regulated the expression and secretion of inflammatory cytokines (e.g., HMGB1, IL-1β and TNF-α) in LPS-induced RAW264.7 cells. Studies have confirmed that IKK-β is targeted by miR-339-5p, and we further found that paeonol could inhibit IKK-β expression. Positive mutual feedback between HMGB1 and IKK-β was observed when we silenced HMGB1 or IKK-β. These results indicated that paeonol could attenuate the inflammation mediated by HMGB1 and IKK-β by upregulating miR-339-5p expression. In addition, we constructed CLP model mice by cecal ligation and puncture. Paeonol was used to intervene to investigate its anti-inflammatory effect in vivo. The results showed that paeonol could improve the survival rate of sepsis mice and protect the kidney of sepsis mice.
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Affiliation(s)
- Liyan Mei
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Meihong He
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Chaoying Zhang
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Jifei Miao
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Quan Wen
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Xia Liu
- School of Basic Medical Sciences, Guiyang University of Chinese Medicine, Guiyang, Guizhou Province, 550025, China
| | - Qin Xu
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Sen Ye
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Peng Ye
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Huina Huang
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Junli Lin
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Xiaojing Zhou
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Kai Zhao
- School of Nursing Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Dongfeng Chen
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Jianhong Zhou
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Chun Li
- School of Nursing Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China
| | - Hui Li
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China.
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28
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Noorolyai S, Baghbani E, Aghebati Maleki L, Baghbanzadeh Kojabad A, Shanehbansdi D, Khaze Shahgoli V, Mokhtarzadeh A, Baradaran B. Restoration of miR-193a-5p and miR-146 a-5p Expression Induces G1 Arrest in Colorectal Cancer through Targeting of MDM2/p53. Adv Pharm Bull 2019; 10:130-134. [PMID: 32002372 PMCID: PMC6983996 DOI: 10.15171/apb.2020.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 08/04/2019] [Accepted: 08/13/2019] [Indexed: 12/18/2022] Open
Abstract
Purpose: Colorectal cancer (CRC) remains a universal and lethal cancer owing to metastatic and relapsing disease. Currently, the role of microRNAs has been checked in tumorigeneses. Numerous studies have revealed that between the tumor suppressor miRNAs, the reduced expression of miR-146a-5p and -193a-5p in several cancers including CRC tissues are related with tumor progression and poor prognosis of patients. The purpose of this study is to examine the role of miR-146 a-5p and -193 a-5p in CRC cell cycle progression.
Methods: The miR-193a-5p and -146 a-5p mimics were transfected into HT-29 CRC cells via jetPEI transfection reagent and their impact was assessed on p53, cyclin B, and NF-kB gene expression. The inhibitory effect of these miRNAs on cell cycle was assessed by flow cytometry. The consequence of miR-193a-5p and miR-146 a-5p on the protein expression level of Murine double minute 2 (MDM2) was assessed by western blotting.
Results: miR193a-5p and -146a-5p regulated the expression of MDM2 protein and p53, cyclin B, and NF-kB gene expression in CRC cells. Treatment of HT-29 cells with miRNA-146a-5p and -193a-5p induced G1 cell cycle arrest.
Conclusion: The findings of our study suggest that miR146a-5p and -193a-5p may act as a potential tumor suppressor by their influence on cell cycle progression in CRC cells. Thus, miRNA-146a-5p and -193a-5p restoration may be recommended as a potential therapeutic goal in the treatment of CRC patients.
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Affiliation(s)
- Saeed Noorolyai
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Baghbani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran. Introduction
| | | | | | | | | | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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29
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Yu Z, Zhao S, Wang L, Wang J, Zhou J. miRNA-339-5p Plays an Important Role in Invasion and Migration of Pancreatic Cancer Cells. Med Sci Monit 2019; 25:7509-7517. [PMID: 31588120 PMCID: PMC6792519 DOI: 10.12659/msm.917038] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND This study aimed to investigate the role of miRNA-339-5p in pancreatic cancer cell invasion and migration. MATERIAL AND METHODS The differences between exosomal miRNAs of PANC02 and PANC02-H7 were studied by microarray analysis. We measured miRNA-339-5p expression in different groups; differences in cell invasion and migration were evaluated using the Transwell and wound healing assays and expression of relative proteins (E-cadherin, vimentin and ZNF689) was measured by WB assay. The correlation between miRNA-339-5p and ZNF689 expression was evaluated by luciferase reporter gene assay. RESULTS Compared with PANC02 exosome, microarray analysis indicated that miRNA-339-5p mRNA expression was significantly suppressed (P<0.001) in the PANC02-H7 exosome. Supplementation with miR-339-5p mimics led to a significant decrease in the invasion cell number and wound healing rate (P<0.001), with significantly enhanced E-cadherin expression and suppressed vimentin expression (P<0.001). However, transfection of a miR-339-5p inhibitor led to a significant increase in the invasion cell number and wound healing rate (P<0.001), with significantly suppressed E-cadherin expression and increased vimentin expression (P<0.001). Luciferase reporter gene assay demonstrated ZNF689 gene to be the target of miR-339-5p in the PANC02-H7 cell. With miR-339-5p and ZNF689 transfection, the invasion cell number and wound healing rate were significantly increased compared with those in the miR-339-5p group (P<0.001), with significantly increased expression of ZNF689 and vimentin and suppressed E-cadherin expression (P<0.001). CONCLUSIONS miR-339-5p suppresses the invasion and migration of pancreatic cancer cells via direct regulation of ZNF689 in vitro.
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Affiliation(s)
- Zeqian Yu
- Hepatic-Biliary-Pancreatic Center, Zhongda Hospital, Nanjing, Jiangsu, China (mainland).,Hepatobiliary Surgery Research Institute, Southeast University, Nanjing, Jiangsu, China (mainland)
| | - Susu Zhao
- Department of Pathology, Chinese Medicine Hospital of Jiangsu Province, Nanjing, Jiangsu, China (mainland)
| | - Lishan Wang
- Hepatic-Biliary-Pancreatic Center, Zhongda Hospital, Southeast University, Nanjing, Jiangsu, China (mainland).,Hepatobiliary Surgery Research Institute, Southeast University, Nanjing, Jiangsu, China (mainland)
| | - Junying Wang
- Department of Interventional and Vascular Surgery, Zhongda Hospital, Southeast University, Nanjing, Jiangsu, China (mainland)
| | - Jiahua Zhou
- Hepatic-Biliary-Pancreatic Center, Zhongda Hospital, Southeast University, Nanjing, Jiangsu, China (mainland).,Hepatobiliary Surgery Research Institute, Southeast University, Nanjing, Jiangsu, China (mainland)
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Zhang J, Luo H, Xiong Z, Wan K, Liao Q, He H. High-throughput sequencing reveals biofluid exosomal miRNAs associated with immunity in pigs. Biosci Biotechnol Biochem 2019; 84:53-62. [PMID: 31483222 DOI: 10.1080/09168451.2019.1661767] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Large numbers of miRNAs are found in biofluid exosomes. We isolated ~50-200 nm diameter exosomes from four types of porcine biofluid (urine, plasma, semen, and bile) using serial centrifugation and ultracentrifugation procedures. A total of 42.15 M raw data were generated from four small RNA libraries. This produced 40.17 M map-able sequences, of which we identified 204 conserved miRNAs, and 190 novel candidate miRNAs. Furthermore, we identified 34 miRNAs specifically expressed in only one library, all with well-characterized immune-related functions. A set of five universally abundant miRNAs (miR-148a-3p, miR-21-5p, let-7f-5p, let-7i-5p, and miR-99a-5p) across all four biofluids was also found. Function enrichment analysis revealed that the target genes of the five ubiquitous miRNAs are primarily involved in immune and RNA metabolic processes. In summary, our findings suggest that porcine biofluid exosomes contain a large number of miRNAs, many of which may be crucial regulators of the immune system.
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Affiliation(s)
- Jie Zhang
- College of Animal Science, Southwest University, Chongqing, China
| | - Hui Luo
- College of Animal Science, Southwest University, Chongqing, China
| | - Zibiao Xiong
- College of Animal Science, Southwest University, Chongqing, China
| | - Kun Wan
- College of Animal Science, Southwest University, Chongqing, China
| | - Qinfeng Liao
- College of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing, China
| | - Hang He
- College of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing, China
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Cui S, Cao Z, Guo W, Yu H, Huang R, Wu Y, Zhou Y. [Plasma miRNA-23a and miRNA-451 as candidate biomarkers for early diagnosis of nonsmall cell lung cancer: a case-control study]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2019; 39:705-711. [PMID: 31270050 DOI: 10.12122/j.issn.1673-4254.2019.06.12] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To study the value of plasma miRNA23-a and miRNA-451 as potential biomarkers for early diagnosis of non-small cell lung cancer (NSCLC). METHODS Fifty patients with NSCLC and 50 healthy control subjects were recruited for testing the plasma levels of miRNA23-a and miRNA-451 and their expression levels in the tumor tissues using qRT-PCR. The correlations of the plasma levels of miRNA23-a and miRNA-451 with their expressions in the tumor tissues were analyzed. The diagnostic power of CEA, miRNA23-a and miRNA-451 for NSCLC was evaluated using the receiver-operating characteristics (ROC) curves and the area under the ROC curves (AUC). In the NSCLC cell line A549, we tested the effect of inhibition of miRNA-23a and miRNA-451 on the expression levels of SPRY2 and MIF mRNA using qRT-PCR. RESULTS The expression levels of miRNA-23a and miRNA-451 in NSCLC tissues was significantly associated with smoking, tumor size, lymph node metastasis and TNM stage (P < 0.05). Compared with those in the control group, miRNA-23a level was significantly increased while miRNA-451 was significantly down-regulated in the tumor tissues and plasma of NSCLC patients. The plasma levels of miRNA-23a and miRNA-45 were strongly correlated with their expression levels in the tumor tissues. ROC analysis showed that for the diagnosis of NSCLC, the AUC, sensitivity and specificity of either miRNA-23a or miRNA-451 were significantly higher than those of CEA (P < 0.05). The combination of miRNA23-a and miRNA-451 markedly improved the AUC (0.900), sensitivity (78%) and specificity (86%) for the diagnosis. In A549 cells, inhibition of miRNA23-a and miRNA-451 resulted in significantly increased expression levels of SPRY2 mRNA and MIF mRNA, respectively. CONCLUSIONS miRNA-23a and miRNA-451 can be used as potential biomarkers for early diagnosis of NSCLC, and their combined detection can be more effective for the diagnosis.
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Affiliation(s)
- Shengjin Cui
- Department of Clinical Laboratory, Shenzhen Hospital of Southern Medical University, Shenzhen 518101, China
| | - Zhaopeng Cao
- Department of Clinical Laboratory, Shenzhen Hospital of Southern Medical University, Shenzhen 518101, China
| | - Weiquan Guo
- Department of Clinical Laboratory, Shenzhen Hospital of Southern Medical University, Shenzhen 518101, China
| | - Huijun Yu
- Department of Clinical Laboratory, Shenzhen Hospital of Southern Medical University, Shenzhen 518101, China
| | - Rong Huang
- Department of Clinical Laboratory, Shenzhen Hospital of Southern Medical University, Shenzhen 518101, China
| | - Yunfeng Wu
- Department of Clinical Laboratory, Shenzhen Hospital of Southern Medical University, Shenzhen 518101, China
| | - Yiwen Zhou
- Department of Clinical Laboratory, Shenzhen Hospital of Southern Medical University, Shenzhen 518101, China
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Zhang K, Ge L, Dong S, Liu Y, Wang D, Zhou C, Ma C, Wang Y, Su F, Jiang Y. Global miRNA, lncRNA, and mRNA Transcriptome Profiling of Endometrial Epithelial Cells Reveals Genes Related to Porcine Reproductive Failure Caused by Porcine Reproductive and Respiratory Syndrome Virus. Front Immunol 2019; 10:1221. [PMID: 31231376 PMCID: PMC6559286 DOI: 10.3389/fimmu.2019.01221] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 05/13/2019] [Indexed: 12/14/2022] Open
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) can cause respiratory disease and reproductive failure in pregnant pigs. Previous transcriptome analyses in susceptive cells have mainly concentrated on pulmonary alveolar macrophages (PAM) and Marc-145 cells, and on the respiratory system. Some studies reported that apoptosis of placental cells and pig endometrial epithelial cells (PECs) is an obvious sign linked to reproductive failure in pregnant sows, but the mechanism is still unknown. In this study, Sn-positive PECs were isolated and apoptosis rates were assessed by flow cytometry. PRRSV-infected PECs exhibited apoptosis, indicative of their susceptibility to PRRSV. Subsequently, the whole transcriptome was compared between mock- and PRRSV-infected PECs and 54 differentially expressed microRNAs (DEmiRNAs), 104 differentially expressed genes (DEGs), 22 differentially expressed lncRNAs (DElncRNAs), and 109 isoforms were obtained, which were mainly enriched in apoptosis, necroptosis, and p53 signal pathways. Integration analysis of DEmiRNA and DEG profiles revealed two microRNAs (ssc-miR-339-5p and ssc-miR-181d-5p) and five genes (SLA-DQB1, THBS1, SLC3A1, ZFP37, and LOC100517161) participating in the apoptosis signal, of which THBS1 and SLC3A1 were mainly linked to the p53 pathway. Integration analysis of DEGs with DElncRNA profiles identified genes involved in apoptosis signal pathway are regulated by LTCONS_00010766 and LTCONS_00045988. Pathway enrichment revealed that the phagosome and p53 pathways are the two main signals causing apoptosis of PECs, and functional analysis revealed a role of miR-339-5p in regulating apoptosis of PECs after PRRSV inoculation.
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Affiliation(s)
- Kang Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Lijiang Ge
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Shasha Dong
- Department of Cardiology, Shandong First Medical University and Shandong Academy of Medical Science, Taian, China
| | - Ying Liu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Dong Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Chunyan Zhou
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Cai Ma
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Yanchao Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Feng Su
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Yunliang Jiang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, China
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Exosome-derived miR-339-5p mediates radiosensitivity by targeting Cdc25A in locally advanced esophageal squamous cell carcinoma. Oncogene 2019; 38:4990-5006. [PMID: 30858545 DOI: 10.1038/s41388-019-0771-0] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 01/27/2019] [Accepted: 02/20/2019] [Indexed: 02/06/2023]
Abstract
Cancer cells associated with radioresistance are likely to give rise to local recurrence and distant metastatic relapse. However, it remains unclear whether specific miRNAs have direct roles in radioresistance and/or prognosis. In this study, we find that miR-339-5p promotes radiosensitivity, and is downregulated in radioresistant subpopulations of esophageal cancer cells. Notably, miR-339-5p was selectively secreted into blood via exosomes, and that higher serum miR-339-5p levels were positively associated with radiotherapy sensitivity and good survival. Moreover, miR-339-5p expression was downregulated in the T3/T4 stage compared with T1/T2 stage in esophageal squamous cell carcinoma (ESCC) patients (P = 0.04), and low miR-339-5p expression in tissue was significantly associated with poor overall survival (P = 0.036) and disease-free survival (P = 0.037). Overexpression of miR-339-5p enhanced radiosensitivity in vitro and in vivo. Mechanistically, miR-339-5p enhances radiosensitivity by targeting Cdc25A, and is transcriptionally regulated by Runx3. Correlations were observed between miR-339-5p levels and Cdc25A/Runx3 levels in tissue samples. Intriguingly, combined analysis of miR-339-5p expression with Runx3 increased the separation of the survival curves obtained for either gene alone in the TCGA datasets (P = 0.009). Overall, exosome-derived miR-339-5p mediates radiosensitivity through downregulation of Cdc25A, and predicts pathological response to preoperative radiotherapy in locally advanced ESCC, suggesting it could be a promising non-invasive biomarker for facilitating personalized treatments.
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Diao J, Zhang C, Zhang D, Wang X, Zhang J, Ma C, Deng K, Jiang T, Jia W, Xu T. Role and mechanisms of a three-dimensional bioprinted microtissue model in promoting proliferation and invasion of growth-hormone-secreting pituitary adenoma cells. Biofabrication 2019; 11:025006. [PMID: 30537696 DOI: 10.1088/1758-5090/aaf7ea] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Growth-hormone-secreting pituitary adenoma (GHSPA) is a benign tumour with a high incidence and large economic burden, which greatly affects quality of life. The aetiological factors are yet to be clarified for GHSPA. Conventional two-dimensional (2D) monolayer culture of tumour cells cannot ideally reflect the growth status of tumours in the physiological environment, and insufficiencies of in vitro models have severely restricted the progress of cancer research. Three-dimensional (3D) bioprinting technology is being increasingly used in various fields of biology and medicine, which allows recapitulation of the in vivo growth environment of tumour cells. In this study, a GHSPA microtissue model was established using 3D bioprinting. Tumour cells in the 3D environment exhibited more active cell cycle progression, secretion, proliferation, invasion, and tumourigenesis compared with those in the 2D environment. Furthermore, the molecular mechanisms of the 3D-printed microtissue model were explored. We demonstrated that the 3D-printed microtissue provides an excellent in vitro model at the tissue level for oncological research and may facilitate in-depth studies on the aetiology, treatment, drug resistance, and long-term prognosis of GHSPA .
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Affiliation(s)
- Jinfu Diao
- Neurosurgical Department, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, People's Republic of China. Beijing Neurosurgical Institute, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, People's Republic of China
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Zeng H, Zheng J, Wen S, Luo J, Shao G, Zhang Y. MicroRNA-339 inhibits human hepatocellular carcinoma proliferation and invasion via targeting ZNF689. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:435-445. [PMID: 30774308 PMCID: PMC6349411 DOI: 10.2147/dddt.s186352] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background Hepatocellular carcinoma (HCC) is the second leading cause of cancer mortality worldwide, however, the prognosis for HCC remains unsatisfactory. This study aimed to explore the role of miR-339-5p in HCC. Methods We first used quantitative real-time PCR to examine the level of miR-339-5p in HCC tissues. Then we further adopted Western blotting assay, CCK8, cell invasion assays, apoptosis detection assay, and luciferase assay to analyze how it mediate the development of HCC. Results We found that miR-339 is significantly decreased in primary HCC tissues. Overexpression of miR-339 in HCC cells remarkably suppressed proliferation and invasion and induced apoptosis. However, silencing miR-339 in HCC cells promoted proliferation and invasion, and reduced apoptosis. Moreover, we demonstrated that ZNF689 is a target of miR-339 and there is a negative correlation between miR-339 and ZNF689 expression in the HCC tissues. Overexpression of ZNF689 in miR-339-overexpressing HCC cells partially antagonized the inhibitory effects of miR-339. Conclusion Our study revealed that miR-339 inhibits HCC growth through targeting oncoprotein ZNF689 and restoration of miR-339 might be feasible therapeutic strategy for HCC treatment.
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Affiliation(s)
- Hui Zeng
- Department of Interventional Radiology, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang, P.R. China,
| | - Jiaping Zheng
- Department of Interventional Radiology, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang, P.R. China,
| | - Song Wen
- Department of Interventional Radiology, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang, P.R. China,
| | - Jun Luo
- Department of Interventional Radiology, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang, P.R. China,
| | - Guoliang Shao
- Department of Interventional Radiology, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang, P.R. China,
| | - Yongjun Zhang
- Department of Integration of Traditional Chinese and Western Medicine, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang, P.R. China,
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Kim YJ, Lee JH, Jin S, Kim JH, Kim SH. Primate-specific miR-944 activates p53-dependent tumor suppression in human colorectal cancers. Cancer Lett 2018; 440-441:168-179. [PMID: 30393117 DOI: 10.1016/j.canlet.2018.10.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/04/2018] [Accepted: 10/10/2018] [Indexed: 01/08/2023]
Abstract
As cancers with a high incidence rate, colorectal cancers are a main cause of cancer-related death. MicroRNAs are often deregulated in cancers. The primate-specific miR-944, located in a p63 intron, is known to be highly expressed in patients exhibiting low colorectal cancer recurrence rates. However, the biological functions of miR-944 in colorectal cancers remain unclear. In this study, we found that miR-944 was downregulated in colorectal cancer tissues, and inhibited cancer cell growth in a xenograft mouse model. The overexpression of miR-944 caused G1 phase arrest and increased p53 expression in cancer cells. p53 stability was enhanced by miR-944s targeting E3 ligases COP1 and MDM2. Overexpression of COP1 and MDM2 restored cell growth inhibition caused by miR-944. Taken together, our results suggest that miR-944 acts as a potential tumor suppressor in colorectal cancers through the ubiquitin-proteasome system.
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Affiliation(s)
- Yoon-Jin Kim
- Department of Biology, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Jeong Hwa Lee
- Department of Biology, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Soll Jin
- Department of Biology, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Jung Hoon Kim
- Department of Radiology, Seoul National University Hospital, Seoul, 03080, Republic of Korea
| | - Sang Hoon Kim
- Department of Biology, Kyung Hee University, Seoul, 02447, Republic of Korea.
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Li P, Liu H, Li Y, Wang Y, Zhao L, Wang H. miR-339-5p inhibits lung adenocarcinoma invasion and migration by directly targeting BCL6. Oncol Lett 2018; 16:5785-5790. [PMID: 30333862 PMCID: PMC6176402 DOI: 10.3892/ol.2018.9376] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 08/08/2018] [Indexed: 12/12/2022] Open
Abstract
Lung adenocarcinoma (LA) is a common non-small cell lung cancer, but effective biomarkers to diagnose early LA are still lacking. Increasing evidence has indicated that the dysregulation of microRNAs (miRNAs) play crucial roles in LA progression. miR-339-5p has been recently confirmed to exert crucial functions in various cancers. Nevertheless, molecular mechanisms and effects of miR-339-5p on LA development still remain vague. In the present research, miR-339-5p expression was downregulated in human LA tissues. miR-339-5p overexpression in LA cells could remarkably suppress the LA cell invasion and migration. In addition, further studies indicated that miR-339-5p overexpression downregulated both the B-cell lymphoma 6 (BCL6) mRNA and protein expressions by targeting the BCL6 3′-UTR directly. Moreover, BCL6 knockdown could partially lessen the function of miR-339-5p in LA invasion and migration. In conclusion, the present data identified miR-339-5p as a novel LA suppressor which exerted its functions partly by negatively regulating BCL6.
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Affiliation(s)
- Peng Li
- Department of Respiratory Medicine, People's Hospital of Rizhao, Rizhao, Shandong 276800, P.R. China
| | - Huaqing Liu
- The Third Department of Neurology, Zhangqiu People's Hospital, Jinan, Shandong 250200, P.R. China
| | - Yanmeng Li
- Department of Laboratory Medicine, People's Hospital of Rizhao, Rizhao, Shandong 276800, P.R. China
| | - Yan Wang
- Department of Public Health, Zhangqiu People's Hospital, Jinan, Shandong 250200, P.R. China
| | - Lin Zhao
- Department of Respiratory Medicine, People's Hospital of Rizhao, Rizhao, Shandong 276800, P.R. China
| | - Hui Wang
- The Second Department of Respiratory Medicine, People's Hospital of Linyi, Linyi, Shandong 276003, P.R. China
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Hu T, Chong Y, Lu S, Wang R, Qin H, Silva J, Kitamura E, Chang CS, Hawthorn L, Cowell JK. miR-339 Promotes Development of Stem Cell Leukemia/Lymphoma Syndrome via Downregulation of the BCL2L11 and BAX Proapoptotic Genes. Cancer Res 2018; 78:3522-3531. [PMID: 29735550 PMCID: PMC6052880 DOI: 10.1158/0008-5472.can-17-4049] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/30/2018] [Accepted: 05/02/2018] [Indexed: 01/21/2023]
Abstract
The development of myeloid and lymphoid neoplasms related to overexpression of FGFR1 kinases as a result of chromosome translocations depends on the promotion of a stem cell phenotype, suppression of terminal differentiation, and resistance to apoptosis. These phenotypes are related to the stem cell leukemia/lymphoma syndrome (SCLL), which arises through the effects of the activated FGFR1 kinase on gene transcription, which includes miRNA dysregulation. In a screen for miRNAs that are directly regulated by FGFR1, and which stimulate cell proliferation and survival, we identified miR-339-5p, which is highly upregulated in cells carrying various different chimeric kinases. Overexpression of miR-339-5p in SCLL cell types enhances cell survival and inhibition of its function leads to reduced cell viability. miR-339-5p overexpression protects cells from the consequences of FGFR1 inactivation, promoting cell-cycle progression and reduced apoptosis. Transient luciferase reporter assays and qRT-PCR detection of endogenous miR-339-5p expression in stably transduced cell lines demonstrated that BCR-FGFR1 can directly regulate miR-339-5p expression. This correlation between miR-339-5p and FGFR1 expression is also seen in primary human B-cell precursor acute lymphoblastic leukemia. In a screen to identify targets of miR-339-5p, we identified and verified the BCL2L11 and BAX genes, which can promote apoptosis. In vivo, SCLL cells forced to overexpress miR-339-5p show a more rapid onset of disease and poorer survival compared with parental cells expressing endogenous levels of miR-339-5p. Analysis of human primary B-cell precursor ALL shows a significant higher expression of miR339-5p compared with the two cohorts of CLL patient samples, suggesting direct roles in disease progression and supporting the evidence generated in mouse models of SCLL.Significance: Proapoptiotic genes that are direct targets of miR-339-5p significantly influence promotion and aggressive development of leukemia/lymphomas associated with FGFR1 overexpression. Cancer Res; 78(13); 3522-31. ©2018 AACR.
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MESH Headings
- Animals
- Bcl-2-Like Protein 11/genetics
- Bcl-2-Like Protein 11/metabolism
- Cell Line, Tumor/transplantation
- Cell Survival/genetics
- Chromosomes, Human, Pair 8/genetics
- Disease Models, Animal
- Down-Regulation
- Female
- HEK293 Cells
- Hematopoietic Stem Cells/pathology
- Humans
- Leukemia/genetics
- Leukemia/pathology
- Lymphoma/genetics
- Lymphoma/pathology
- Mice
- Mice, Inbred BALB C
- MicroRNAs/metabolism
- NIH 3T3 Cells
- Oncogene Proteins, Fusion/metabolism
- Receptor, Fibroblast Growth Factor, Type 1/genetics
- Receptor, Fibroblast Growth Factor, Type 1/metabolism
- Syndrome
- Translocation, Genetic
- bcl-2-Associated X Protein/genetics
- bcl-2-Associated X Protein/metabolism
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Affiliation(s)
- Tianxiang Hu
- Georgia Cancer Center, Augusta University, Augusta, Georgia
| | - Yating Chong
- Georgia Cancer Center, Augusta University, Augusta, Georgia
| | - Sumin Lu
- Georgia Cancer Center, Augusta University, Augusta, Georgia
| | - Rebecca Wang
- Georgia Cancer Center, Augusta University, Augusta, Georgia
| | - Haiyan Qin
- Georgia Cancer Center, Augusta University, Augusta, Georgia
| | - Jeane Silva
- Georgia Cancer Center, Augusta University, Augusta, Georgia
| | - Eiko Kitamura
- Georgia Cancer Center, Augusta University, Augusta, Georgia
| | | | | | - John K Cowell
- Georgia Cancer Center, Augusta University, Augusta, Georgia.
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Li X, Wu Y, Xie F, Zhang F, Zhang S, Zhou J, Chen D, Liu A. miR‑339‑5p negatively regulates loureirin A‑induced hair follicle stem cell differentiation by targeting DLX5. Mol Med Rep 2018; 18:1279-1286. [PMID: 29901112 PMCID: PMC6072140 DOI: 10.3892/mmr.2018.9110] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 03/02/2018] [Indexed: 01/08/2023] Open
Abstract
Our previous study indicated that loureirin A induces hair follicle stem cell (HFSC) differentiation through Wnt/β-catenin signaling pathway activation. However, if and how microRNAs (miRNAs/miRs) modulate loureirin A-induced differentiation remains to be elucidated. In the present study, HFSCs were separated from the vibrissae of rats and identified by CD34 and keratin, type 1 cytoskeletal (K)15 expression. Microarray-based miRNA profiling analysis revealed that miR-339-5p was downregulated in loureirin A-induced HFSC differentiation. miR-339-5p overexpression by transfection with miR-339-5p mimics markedly inhibited the expression of K10 and involucrin, which are markers of epidermal differentiation, whereas inhibition of miR-339-5p by miR-339-5p inhibitor transfection promoted the expression of K10 and involucrin. These results suggest that miR-339-5p is a negative regulator of HFSC differentiation following induction by loureirin A. These findings were confirmed by a luciferase assay. Homeobox protein DLX-5 (DLX5) was identified as a direct target of miR-339-5p. Furthermore, it was demonstrated that miR-339-5p inhibited DLX5. Overexpression of miR-339-5p by mimic transfection significantly inhibited protein Wnt-3a (Wnt3a) expression, while inhibition of miR-339-5p by inhibitor transfection significantly increased the expression of Wnt3a. Furthermore, small interfering RNA targeting DLX5 was transfected into HFSCs, and western blot analysis revealed that Wnt3a, involucrin and K10 expression was significantly downregulated. Taken together, these results suggest that miR-339-5p negatively regulated loureirin A-induced HFSC differentiation by targeting DLX5, resulting in Wnt/β-catenin signaling pathway inhibition. This may provide a possible therapeutic target for skin repair and regeneration.
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Affiliation(s)
- Xiangjun Li
- Department of Histology and Embryology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Yuqiong Wu
- Department of Histology and Embryology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Fangfang Xie
- Department of Histology and Embryology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Fengxue Zhang
- The Research Centre of Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Saixia Zhang
- The Research Centre of Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Jianhong Zhou
- The Research Centre of Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Dongfeng Chen
- Department of Anatomy, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Aijun Liu
- Department of Histology and Embryology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
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MiR-766 induces p53 accumulation and G2/M arrest by directly targeting MDM4. Oncotarget 2018; 8:29914-29924. [PMID: 28430625 PMCID: PMC5444713 DOI: 10.18632/oncotarget.15530] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 01/31/2017] [Indexed: 12/22/2022] Open
Abstract
p53, a transcription factor that participates in multiple cellular functions, is considered the most important tumor suppressor. Previous evidence suggests that post-transcriptional deregulation of p53 by microRNAs contributes to tumorigenesis, tumor progression and therapeutic resistance. In the present study, we found that the microRNA miR-766 was aberrantly expressed in breast cancer, and that over-expression of miR-766 caused accumulation of wild-type p53 protein in multiple cancer cell lines. Supporting its role in the p53 signalling pathway, miR-766 decreased cell proliferation and colony formation in several cancer cell lines, and cell cycle analyses revealed that miR-766 causes G2 arrest. At a mechanistic level, we demonstrate that miR-766 enhances p53 signalling by directly targeting MDM4, an oncogene and negative regulator of p53. Analysis of clinical genomic data from multiple cancer types supports the relevance of miR-766 in p53 signalling. Collectively, our study demonstrates that miR-766 can function as a novel tumor suppressor by enhancing p53 signalling.
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Ren H, Zhang Y, Zhu H. MiR-339 depresses cell proliferation via directly targeting S-phase kinase-associated protein 2 mRNA in lung cancer. Thorac Cancer 2018; 9:408-414. [PMID: 29377618 PMCID: PMC5832474 DOI: 10.1111/1759-7714.12597] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 12/21/2017] [Accepted: 12/21/2017] [Indexed: 12/21/2022] Open
Abstract
Background S‐phase kinase‐associated protein 2 (Skp2) takes great part in the development of multiple tumors. However, the post‐transcriptional modulation mechanism of Skp2 remains unclear. Here, we present a new regulatory microRNA of Skp2, miR‐339, which directly targets Skp2 to inhibit cell proliferation in lung cancer. Methods The expression of miR‐339 or Skp2 in lung cancer samples was tested by real time‐PCR. The correlation between miR‐339 and Skp2 in lung cancer samples was analyzed by Pearson's correlation coefficient. The effect of miR‐339 or anti‐miR‐339 on Skp2 was evaluated by immunoblotting. The luciferase reporter gene assay was used to test the targeting of miR‐339 on Skp2. 3‐(4,5‐Dimethylthiazol‐2‐yl)‐2,5 diphenyltetrazolium bromide and colony formation analysis were applied to examine the function of miR‐339 targeting Skp2 in lung cancer cells. Results The negative correlation of miR‐339 with Skp2 was found in clinical human lung cancer tissues. Furthermore, Skp2 expression was obviously abated by miR‐339 in lung cancer A549 cells. Mechanistically, we used bioinformatics to predict that miR‐339 could target the 3′‐untranslated region of Skp2 mRNA. Luciferase reporter gene assay demonstrated that miR‐339 could decrease the luciferase activities of the 3′‐untranslated region vector of Skp2. In terms of function, ectopic miR‐339 expression significantly suppressed cell proliferation in lung cancer. Overexpressed Skp2 accelerated miR‐339‐bated proliferation of lung cancer cells. MiR‐339 inhibitor promoted cell proliferation in lung cancer, but Skp2 RNA interference reversed miR‐339 inhibitor‐driven cell proliferation. Conclusion MiR‐339 targets the 3′‐untranslated region of Skp2 mRNA to depress the proliferation of lung cancer cells.
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Affiliation(s)
- Hong Ren
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yueqiao Zhang
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Hongzhou Zhu
- Department of Interventional, Zhejiang Cancer Hospital, Hangzhou, China
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Sun Y, Mei H, Xu C, Tang H, Wei W. Circulating microRNA-339-5p and -21 in plasma as an early detection predictors of lung adenocarcinoma. Pathol Res Pract 2018; 214:119-125. [PMID: 29103767 DOI: 10.1016/j.prp.2017.10.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 10/08/2017] [Accepted: 10/08/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Many studies have shown that differentially expressed miRs in body fluids can serve as biomarkers in non-invasive detection of the cancers. However, the clinical significance of plasma miRs in the diagnosis of lung adenocarcinoma (LA) is still not clear. Therefore, we examined the LA-specific miRs in plasma, which could be utilized to diagnosis and monitor LA in routine clinical practice. METHODS Twenty-eight LA cases and twenty-eight healthy controls were recruited to our study. MiRs differential expression in plasma was measured by miRNA Microarray assay and revalidated by using qRT-PCR based absolute quantification methods The diagnostic power of circulating miRs in LA was evaluated using the receiver operating characteristics (ROC) curves and the area under the ROC curves (AUC). RESULTS Tumor tissues and plasma levels of miR-339-5p were significantly down-regulated in LA patients compared with those in the control group, whereas the levels of miR-21 in LA patients were significantly higher than control group. ROC analysis showed that miR-339-5p and miR-21 could distinguish LA patients from healthy controls with high AUC (0.900 and 0.880, respectively), sensitivity (0.821 and 0.821, respectively) and specificity (0.929 and 0.964, respectively). Importantly, the combination of miR-339-5p and miR-21 markedly improved AUC (0.963), sensitivity (0.929) and specificity (0.929). CONCLUSION Plasma miR-339-5p or miR-21 could serve as a potential biomarker for diagnosis of LA, however, the combination of miR-339-5p and miR-21 was more efficient for LA detection.
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Affiliation(s)
- Yongpan Sun
- Department of thoracic surgery, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - Hong Mei
- Department of thoracic surgery, Guizhou Provincial People's Hospital, Guiyang 550002, China.
| | - Chuan Xu
- Department of thoracic surgery, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - Hongjun Tang
- Department of thoracic surgery, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - Wei Wei
- Department of thoracic surgery, Guizhou Provincial People's Hospital, Guiyang 550002, China
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Wu X. Genome expression profiling predicts the molecular mechanism of peripheral myelination. Int J Mol Med 2017; 41:1500-1508. [PMID: 29286075 PMCID: PMC5819935 DOI: 10.3892/ijmm.2017.3348] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 11/22/2017] [Indexed: 01/17/2023] Open
Abstract
The present study aimed to explore the molecular mechanism of myelination in the peripheral nervous system (PNS) based on genome expression profiles. Microarray data (GSE60345) was acquired from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were integrated and subsequently subjected to pathway and term enrichment analysis. A protein-protein interaction network was constructed and the top 200 DEGs according to their degree value were further subjected to pathway enrichment analysis. A microRNA (miR)-target gene regulatory network was constructed to explore the role of miRs associated with PNS myelination. A total of 783 upregulated genes and 307 downregulated genes were identified. The upregulated DEGs were significantly enriched in the biological function of complement and coagulation cascades, cytokine-cytokine receptor interactions and cell adhesion molecules. Pathways significantly enriched by the downregulated DEGs included the cell cycle, oocyte meiosis and the p53 signaling pathway. In addition, the upregulated DEGs among the top 200 DEGs were significantly enriched in natural killer (NK) cell mediated cytotoxicity and the B cell receptor (BCR) signaling pathway, in which Fc γ receptor (FCGR), ras-related C3 botulinum toxin substrate 2 (RAC2) and 1-phosphatidylinositol-4,5-bisphosphate phosphodiesterase γ-2 (PLCG2) were involved. miR-339-5p, miR-10a-5p and miR-10b-5p were identified as having a high degree value and may regulate the target genes TOX high mobility group box family member 4 (Tox4), DNA repair protein XRCC2 (Xrcc2) and C5a anaphylatoxin chemotactic receptor C5a2 (C5ar2). NK cell mediated cytotoxicity and the BCR pathway may be involved in peripheral myelination by targeting FCGR, RAC2 and PLCG2. The downregulation of oocyte meiosis, the cell cycle and the cellular tumor antigen p53 signaling pathway suggests decreasing schwann cell proliferation following the initiation of myelination. miR-339-5p, miR-10a-5p and miR-10b-5p may play important roles in PNS myelination by regulating Tox4, Xrcc2 and C5ar2.
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Affiliation(s)
- Xiaoming Wu
- Department of Radiology, Jinhua People's Hospital, Jinhua, Zhejiang 321000, P.R. China
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Tan J, Shen W, Shi W, Chen X, Sun D, Xu C, Yan Q, Cheng H, Lai Y, Ji H. ONTD induces growth arrest and apoptosis of human hepatoma Bel-7402 cells though a peroxisome proliferator-activated receptor γ-dependent pathway. Toxicol In Vitro 2017; 45:44-53. [PMID: 28834734 DOI: 10.1016/j.tiv.2017.08.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 08/14/2017] [Accepted: 08/19/2017] [Indexed: 12/13/2022]
Abstract
ONTD (3-Oxo-29-noroleana-1,9(11),12-trien-2,20-dicarbonitrile) is a novel synthetic derivative of glycyrrhetinic acid (GA), which has been reported to exhibit anti-inflammatory and anti-tumor activities through its mechanisms are not fully understood. Previously, we demonstrated that ONTD induces apoptosis of human hepatoma cells via a MAPK-dependent mitochondrial pathway. Recently, ONTD was found to increase sub-G1 accumulation and Annexin-V positive staining, indicating apoptotic induction effect. It was also be found that ONTD increase the PPAR-γ activity, reduce the phosphorylation of Akt and increase phosphatase and tensin homologue (PTEN) protein expression in hepatocellular carcinoma (HCC) Bel-7402 cells, and these were associated with the inhibition of cells proliferation. More importantly, these effects could be diminished by GW9662, a specific PPAR-γ antagonist, suggesting that ONTD can act as a ligand of PPAR-γ. Taken together, our novel observations suggested that ONTD may have potential implication in HCC prevention and treatment, and showed for the first time that the anti-tumor effect of ONTD may also be mediated through modulation of the PPAR-γ activation and mediated by the PTEN/Akt signaling pathway. The present study also supports ONTD as a potential drug candidate for chemoprevention or chemotherapy of HCC.
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Affiliation(s)
- Jiani Tan
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Key Laboratory of SATCM for Empirical Formulae Evaluation and Achievements Transformation, Collaborative Innovation Center of Jiangsu Province Chinese Medicine in Cancer Prevention and Treatment, Nanjing 210038, PR China; Department of Pharmacology, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China
| | - Weixing Shen
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Key Laboratory of SATCM for Empirical Formulae Evaluation and Achievements Transformation, Collaborative Innovation Center of Jiangsu Province Chinese Medicine in Cancer Prevention and Treatment, Nanjing 210038, PR China
| | - Wenjing Shi
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Key Laboratory of SATCM for Empirical Formulae Evaluation and Achievements Transformation, Collaborative Innovation Center of Jiangsu Province Chinese Medicine in Cancer Prevention and Treatment, Nanjing 210038, PR China
| | - Xi Chen
- School of Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Dongdong Sun
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Key Laboratory of SATCM for Empirical Formulae Evaluation and Achievements Transformation, Collaborative Innovation Center of Jiangsu Province Chinese Medicine in Cancer Prevention and Treatment, Nanjing 210038, PR China
| | - Changliang Xu
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Key Laboratory of SATCM for Empirical Formulae Evaluation and Achievements Transformation, Collaborative Innovation Center of Jiangsu Province Chinese Medicine in Cancer Prevention and Treatment, Nanjing 210038, PR China
| | - Qiuying Yan
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Key Laboratory of SATCM for Empirical Formulae Evaluation and Achievements Transformation, Collaborative Innovation Center of Jiangsu Province Chinese Medicine in Cancer Prevention and Treatment, Nanjing 210038, PR China
| | - Haibo Cheng
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Key Laboratory of SATCM for Empirical Formulae Evaluation and Achievements Transformation, Collaborative Innovation Center of Jiangsu Province Chinese Medicine in Cancer Prevention and Treatment, Nanjing 210038, PR China.
| | - Yisheng Lai
- Department of Pharmacology, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China; Center of Drug Discovery, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Hui Ji
- Department of Pharmacology, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China.
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Apoptosis in inner ear sensory hair cells. J Otol 2017; 12:151-164. [PMID: 29937851 PMCID: PMC6002637 DOI: 10.1016/j.joto.2017.08.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 07/31/2017] [Accepted: 08/04/2017] [Indexed: 01/13/2023] Open
Abstract
Apoptosis, or controlled cell death, is a normal part of cellular lifespan. Cell death of cochlear hair cells causes deafness; an apoptotic process that is not well understood. Worldwide, 1.3 billion humans suffer some form of hearing loss, while 360 million suffer debilitating hearing loss as a direct result of the absence of these cochlear hair cells (Worldwide Hearing, 2014). Much is known about apoptosis in other systems and in other cell types thanks to studies done since the mid-20th century. Here we review current literature on apoptosis in general, and causes of deafness and cochlear hair cells loss as a result of apoptosis. The family of B-cell lymphoma (Bcl) proteins are among the most studied and characterized. We will review current literature on the Bcl2 and Bcl6 protein interactions in relation to apoptosis and their possible roles in vulnerability and survival of cochlear hair cells.
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10-Gingerol as an inducer of apoptosis through HTR1A in cumulus cells: In-vitro and in-silico studies. J Taibah Univ Med Sci 2017; 12:397-406. [PMID: 31435270 PMCID: PMC6695051 DOI: 10.1016/j.jtumed.2017.05.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 05/17/2017] [Accepted: 05/21/2017] [Indexed: 12/20/2022] Open
Abstract
Objectives Cumulus cells play a crucial role as essential mediators in the maturation of ova. Ginger contains 10-gingerol, which induces apoptosis in colon cancer cells. Based on this hypothesis, this study aimed to determine whether 10-gingerol is able to induce apoptosis in normal cells, namely, cumulus cells. Methods This study used an in vitro analysis by culturing Cumulus cells in M199 containing 10-gingerol in various concentrations (12, 16, and 20 μM) and later detected early apoptotic activity using an Annexin V-FITC detection kit. Result The in vitro data revealed that the number of apoptosis cells increased along with the period of incubation as follows: 12 μM (63.71% ± 2.192%); 16 μM (74.51% ± 4.596%); and 20 μM (78.795% ± 1.435%). The substance 10-gingerol induces apoptosis in cumulus cells by inhibiting HTR1A functions and inactivating GSK3B and AKT-1. Conclusions These findings indicate that further examination is warranted for 10-gingerol as a contraception agent.
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Key Words
- 10-Gingerol
- ARG, arginine
- Apoptosis
- Cumulus cells
- FOXO, forkhead box
- GLU, glutamine
- GLY, glycine
- GSK3B, glycogen synthase kinase-3β
- HTR1A
- HTR1A, 5-hydroxytryptamine receptor 1 A
- ILE, ileusine
- ILK, integrin-linked kinase
- In silico
- In vitro
- LYS, lysine
- MDM2, murine double minute clone 2
- MET, methionine
- NO, nitric oxide
- NOS3, nitric oxide synthase 3
- PTEN, phosphatase and tensin homologue delete on chromosome ten
- RICTOR, rapamycin-insensitive companion of mTOR
- TYR, tyrosine
- eNOS, endothelial nitric oxide synthase
- mTOR, mammalian target of rapamycin
- mTORC1, mTOR complex 1
- mTORC2, mTOR complex 2
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Marchionni L, Hayashi M, Guida E, Ooki A, Munari E, Jabboure FJ, Dinalankara W, Raza A, Netto GJ, Hoque MO, Argani P. MicroRNA expression profiling of Xp11 renal cell carcinoma. Hum Pathol 2017; 67:18-29. [PMID: 28411178 DOI: 10.1016/j.humpath.2017.03.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/27/2017] [Accepted: 03/18/2017] [Indexed: 12/21/2022]
Abstract
Renal cell carcinomas (RCCs) with Xp11 translocation (Xp11 RCC) constitute a distinctive molecular subtype characterized by chromosomal translocations involving the Xp11.2 locus, resulting in gene fusions between the TFE3 transcription factor with a second gene (usually ASPSCR1, PRCC, NONO, or SFPQ). RCCs with Xp11 translocations comprise up to 1% to 4% of adult cases, frequently displaying papillary architecture with epithelioid clear cells. To better understand the biology of this molecularly distinct tumor subtype, we analyze the microRNA (miRNA) expression profiles of Xp11 RCC compared with normal renal parenchyma using microarray and quantitative reverse-transcription polymerase chain reaction. We further compare Xp11 RCC with other RCC histologic subtypes using publically available data sets, identifying common and distinctive miRNA signatures along with the associated signaling pathways and biological processes. Overall, Xp11 RCC more closely resembles clear cell rather than papillary RCC. Furthermore, among the most differentially expressed miRNAs specific for Xp11 RCC, we identify miR-148a-3p, miR-221-3p, miR-185-5p, miR-196b-5p, and miR-642a-5p to be up-regulated, whereas miR-133b and miR-658 were down-regulated. Finally, Xp11 RCC is most strongly associated with miRNA expression profiles modulating DNA damage responses, cell cycle progression and apoptosis, and the Hedgehog signaling pathway. In summary, we describe here for the first time the miRNA expression profiles of a molecularly distinct type of renal cancer associated with Xp11.2 translocations involving the TFE3 gene. Our results might help understanding the molecular underpinning of Xp11 RCC, assisting in developing targeted treatments for this disease.
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Affiliation(s)
- Luigi Marchionni
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Center for Computational Genomics, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
| | - Masamichi Hayashi
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Elisa Guida
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Akira Ooki
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Enrico Munari
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Pathology, Sacro Cuore Hospital Negrar, Verona 37024, Italy
| | - Fayez J Jabboure
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Wikum Dinalankara
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Ali Raza
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - George J Netto
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Pathology, University of Alabama School of Medicine, Birmingham, AL 35233, USA
| | - Mohammad O Hoque
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Pedram Argani
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
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microRNA-1827 represses MDM2 to positively regulate tumor suppressor p53 and suppress tumorigenesis. Oncotarget 2017; 7:8783-96. [PMID: 26840028 PMCID: PMC4891004 DOI: 10.18632/oncotarget.7088] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 01/15/2016] [Indexed: 12/14/2022] Open
Abstract
The tumor suppressor p53 plays a central role in tumor prevention. The E3 ubiquitin ligase MDM2 is the most critical negative regulator of p53, which binds to p53 and degrades p53 through ubiquitation. MDM2 itself is a transcriptional target of p53, and therefore, MDM2 forms a negative feedback loop with p53 to tightly regulate p53 levels and function. microRNAs (miRNAs) play a key role in regulation of gene expression. miRNA dysregulation plays an important role in tumorigenesis. In this study, we found that miRNA miR-1827 is a novel miRNA that targets MDM2 through binding to the 3′-UTR of MDM2 mRNA. miR-1827 negatively regulates MDM2, which in turn increases p53 protein levels to increase transcriptional activity of p53 and enhance p53-mediated stress responses, including apoptosis and senescence. Overexpression of miR-1827 suppresses the growth of xenograft colorectal tumors, whereas the miR-1827 inhibitor promotes tumor growth in mice in a largely p53-dependent manner. miR-1827 is frequently down-regulated in human colorectal cancer. Decreased miR-1827 expression is associated with high MDM2 expression and poor prognosis in colorectal cancer. In summary, our results reveal that miR-1827 is a novel miRNA that regulates p53 through targeting MDM2, and highlight an important role and the underlying mechanism of miR-1827 in tumor suppression.
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Abstract
Phosphatase and tensin homolog (PTEN) is a tumor-suppressor gene. PTEN pseudogene (PTENp) acts as an endogenous RNA, which regulates its parental gene by competitively binding to the 3’ UTR of PTEN gene in the human. Despite the importance of this pseudogene, little is known about the molecular evolution of PTENp in mammals. In this study, we identified 37 pseudogenes from 65 mammalian genomes. Among them, 32 were from rodents or primates. Phylogenetic analyse showed a complex evolutionary history of this gene family. Some PTENps were shared both in primates and rodents. However, some PTENps were shown to be species-specific, such as the tasmanian devil PTENp1, nine banded armadillo PTENp1 and gibbon PTENp1. Most interestingly, the naked mole rat (NMR), an anticancer model organism, possessed 17 copies of PTENps, which were classified into four clades based on the phylogenetic analyses. Furthermore, we found that all the 3’UTR of PTEN and PTENps shared common microRNA (MicroRNA) binding sites in NMR, based on our prediction of specific MicroRNA binding sites. Our findings suggested that multiple gene duplications have occurred in the formation of PTEN/PTENp gene family during the evolution of mammals. Some PTENps were relatively ancient and were shared by primates and rodents; others were newly originated through species- specific gene duplications. PTENps in NMR may function as competitive endogenous RNAs (ceRNAs) to regulate their counterpart genes by competing for common MicroRNAs, which may be one of the interpretations for the cancer resistance in NMR.
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Simerzin A, Zorde-Khvalevsky E, Rivkin M, Adar R, Zucman-Rossi J, Couchy G, Roskams T, Govaere O, Oren M, Giladi H, Galun E. The liver-specific microRNA-122*, the complementary strand of microRNA-122, acts as a tumor suppressor by modulating the p53/mouse double minute 2 homolog circuitry. Hepatology 2016; 64:1623-1636. [PMID: 27302319 DOI: 10.1002/hep.28679] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 05/10/2016] [Accepted: 05/27/2016] [Indexed: 12/12/2022]
Abstract
UNLABELLED The tumor suppressor p53 is a central regulator of signaling pathways that controls the cell cycle and maintains the integrity of the human genome. p53 level is regulated by mouse double minute 2 homolog (Mdm2), which marks p53 for proteasomal degradation. The p53-Mdm2 circuitry is subjected to complex regulation by a variety of mechanisms, including microRNAs (miRNAs). We found a novel effector of this regulatory circuit, namely, miR-122*, the passenger strand of the abundantly expressed liver-specific miR-122. Here, we demonstrate that miR-122* levels are reduced in human hepatocellular carcinoma (HCC). We found that miR-122* targets Mdm2, thus participating as an important player in the p53-Mdm2 circuitry. Moreover, we observed significant negative correlation between levels of miR-122* and Mdm2 in a large set of human HCC samples. In vivo tumorigenicity assays demonstrate that miR-122* is capable of inhibiting tumor growth, emphasizing the tumor-suppressor characteristics of this miRNA. Furthermore, we show that blocking miR-122 in murine livers with an antagomiR-122 (miRNA inhibitor) results in miR-122* accumulation, leading to Mdm2 repression followed by elevated p53 protein levels. CONCLUSION miR-122*, the passenger strand of miR-122, regulates the activity of p53 by targeting Mdm2. Importantly, similarly to miR-122, miR-122* is significantly down-regulated in human HCC. We therefore propose that miR-122* is an important contributor to the tumor suppression activity previously attributed solely to miR-122. (Hepatology 2016;64:1623-1636).
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Affiliation(s)
- Alina Simerzin
- The Goldyne Savad Institute of Gene and Cell Therapy, Hadassah Hebrew University Hospital, Ein Karem, Jerusalem, Israel
| | - Elina Zorde-Khvalevsky
- The Goldyne Savad Institute of Gene and Cell Therapy, Hadassah Hebrew University Hospital, Ein Karem, Jerusalem, Israel
| | - Mila Rivkin
- The Goldyne Savad Institute of Gene and Cell Therapy, Hadassah Hebrew University Hospital, Ein Karem, Jerusalem, Israel
| | - Revital Adar
- The Goldyne Savad Institute of Gene and Cell Therapy, Hadassah Hebrew University Hospital, Ein Karem, Jerusalem, Israel
| | - Jessica Zucman-Rossi
- Inserm, UMR-1162, Functional Genomic of Solid Tumors, Equipe Labellisée Ligue Contre le Cancer, Paris, France.,Université Paris Descartes, Labex Immuno-Oncology, Sorbonne Paris Cité, Paris, France.,Université Paris 13, Sorbonne Paris Cité, UFR SMBH, Bobigny, France.,Université Paris Diderot, IUH, Paris, France
| | - Gabrielle Couchy
- Inserm, UMR-1162, Functional Genomic of Solid Tumors, Equipe Labellisée Ligue Contre le Cancer, Paris, France.,Université Paris Descartes, Labex Immuno-Oncology, Sorbonne Paris Cité, Paris, France.,Université Paris 13, Sorbonne Paris Cité, UFR SMBH, Bobigny, France.,Université Paris Diderot, IUH, Paris, France
| | - Tania Roskams
- Department of Pathology and the Laboratory of Morphology and Molecular Pathology, University Hospitals, University of Leuven, Leuven, Belgium
| | - Olivier Govaere
- Department of Pathology and the Laboratory of Morphology and Molecular Pathology, University Hospitals, University of Leuven, Leuven, Belgium
| | - Moshe Oren
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Hilla Giladi
- The Goldyne Savad Institute of Gene and Cell Therapy, Hadassah Hebrew University Hospital, Ein Karem, Jerusalem, Israel
| | - Eithan Galun
- The Goldyne Savad Institute of Gene and Cell Therapy, Hadassah Hebrew University Hospital, Ein Karem, Jerusalem, Israel.
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