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Zhang HP, Jiang RY, Zhu JY, Sun KN, Huang Y, Zhou HH, Zheng YB, Wang XJ. PI3K/AKT/mTOR signaling pathway: an important driver and therapeutic target in triple-negative breast cancer. Breast Cancer 2024; 31:539-551. [PMID: 38630392 PMCID: PMC11194209 DOI: 10.1007/s12282-024-01567-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 03/10/2024] [Indexed: 06/24/2024]
Abstract
Triple-negative breast cancer (TNBC) is a highly heterogeneous tumor lacking estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) expression. It has higher aggressiveness and metastasis than other subtypes, with limited effective therapeutic strategies, leading to a poor prognosis. The phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mechanistic target of rapamycin (mTOR) signaling pathway is prevalently over-activated in human cancers and contributes to breast cancer (BC) growth, survival, proliferation, and angiogenesis, which could be an interesting therapeutic target. This review summarizes the PI3K/AKT/mTOR signaling pathway activation mechanism in TNBC and discusses the relationship between its activation and various TNBC subtypes. We also report the latest clinical studies on kinase inhibitors related to this pathway for treating TNBC. Our review discusses the issues that need to be addressed in the clinical application of these inhibitors.
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Affiliation(s)
- Huan-Ping Zhang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310000, Zhejiang, China
- Wenzhou Medical University, No. 270, Xueyuan West Road, Lucheng District, Wenzhou, 325027, Zhejiang, China
| | - Rui-Yuan Jiang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310000, Zhejiang, China
- Zhejiang Chinese Medical University, No. 548, Binwen Road, Binjiang District, Hangzhou, 310000, Zhejiang, China
| | - Jia-Yu Zhu
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310000, Zhejiang, China
- Zhejiang Chinese Medical University, No. 548, Binwen Road, Binjiang District, Hangzhou, 310000, Zhejiang, China
| | - Ke-Na Sun
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310000, Zhejiang, China
- Wenzhou Medical University, No. 270, Xueyuan West Road, Lucheng District, Wenzhou, 325027, Zhejiang, China
| | - Yuan Huang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310000, Zhejiang, China
| | - Huan-Huan Zhou
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310000, Zhejiang, China
| | - Ya-Bing Zheng
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310000, Zhejiang, China.
| | - Xiao-Jia Wang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310000, Zhejiang, China.
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2
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Aloufi A, Aubee J, Vargas KM, Apprey V, Thompson K, Copeland R, Kanaan Y, Ricks-Santi L, Brim H, Abbas M. Vitamin D receptor polymorphisms and associated miRNAs in the development of breast cancer in African American women. Gene 2024; 927:148695. [PMID: 38945313 DOI: 10.1016/j.gene.2024.148695] [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: 01/08/2024] [Revised: 05/31/2024] [Accepted: 06/12/2024] [Indexed: 07/02/2024]
Abstract
Breast cancer (BCa) is a prevalent form of cancer in women, exhibiting varying rates and distribution across different ethnic groups. Among these groups, African American (AA) women have the highest incidence of BCa and the lowest levels of Vitamin D (VD). Numerous studies have explored the connection between variations in the VDR gene and BCa risk, particularly in different populations, but research on the AA population remains limited. Epigenetic modifications, including specific microRNAs (miRNAs), can influence gene expression without altering the genetic code and have been implicated in cancer initiation and progression. Our hypothesis suggests that VDR gene variations may increase BCa risk in AA women and that changes in miRNA expression profiles could contribute to BCa development. Using data from the 1000 Genome Project, we identified five VDR gene variants with significant frequency differences between AA and European-American (EA) populations. We genotyped 404 African American BCa cases and controls for five variants using TaqMan® assays. SNPstats assessed their association with BCa risk. The rs1544410 variant's recessive model (A/A) showed a decreased BCa risk in AA (odds ratio 0.33, 95% CI: 0.15-0.73, p-value 0.0041). Conversely, the rs2853563 variant's recessive model (A/A) was linked to an increased BCa risk (odds ratio 4.04, 95% CI: 1.49-10.95, p-value 0.0022). We investigated miRNA expression influenced by VD in HCC1806 Triple-Negative Breast Cancer (TNBC) cell lines with the A/A allele for rs2853563. nCounter® Nanostring technology assessed miRNA profiles after calcitriol treatment. Our results indicated that calcitriol treatment led to reduced expression of six miRNAs, four of which are associated with tumor suppression in the presence of the AA genotype in TNBC cell lines. These findings suggest that specific VDR genotypes could have a potential effect on the miRNAs expression which could potentially serve as markers for cell proliferation in TNBC.
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Affiliation(s)
- Abrar Aloufi
- Howard University, Department of Microbiology, Washington, DC, USA
| | - Joseph Aubee
- Howard University, Department of Microbiology, Washington, DC, USA
| | - Kevin Monsalve Vargas
- MedStar Georgetown University Hospital, Pre/Postoperative Services, Washington, DC, USA
| | - Victor Apprey
- The National Human Genome Center, Howard University, Washington, DC, USA
| | - Karl Thompson
- Howard University, Department of Microbiology, Washington, DC, USA
| | - Robert Copeland
- Howard University, Department of Microbiology, Washington, DC, USA
| | - Yasmine Kanaan
- Howard University, Department of Microbiology, Washington, DC, USA
| | | | - Hassan Brim
- Howard University, Department of Pathology, Washington, DC, USA.
| | - Muneer Abbas
- Howard University, Department of Microbiology, Washington, DC, USA; The National Human Genome Center, Howard University, Washington, DC, USA.
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Hardin LT, Abid N, Vang D, Han X, Thor D, Ojcius DM, Xiao N. miRNAs mediate the impact of smoking on dental pulp stem cells via the p53 pathway. Toxicol Sci 2024; 200:47-56. [PMID: 38636493 DOI: 10.1093/toxsci/kfae042] [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] [Indexed: 04/20/2024] Open
Abstract
Cigarette smoke changes the genomic and epigenomic imprint of cells. In this study, we investigated the biological consequences of extended cigarette smoke exposure on dental pulp stem cells (DPSCs) and the potential roles of miRNAs. DPSCs were treated with various doses of cigarette smoke condensate (CSC) for up to 6 weeks. Cell proliferation, survival, migration, and differentiation were evaluated. Cytokine and miRNA expression were profiled. The results showed that extended exposure to CSC significantly impaired the regenerative capacity of the DPSCs. Bioinformatic analysis showed that the cell cycle pathway, cancer pathways (small cell lung cancer, pancreatic, colorectal, and prostate cancer), and pathways for TNF, TGF-β, p53, PI3K-Akt, mTOR, and ErbB signal transduction, were associated with altered miRNA profiles. In particular, 3 miRNAs has-miR-26a-5p, has-miR-26b-5p, and has-miR-29b-3p fine-tune the p53 and cell cycle signaling pathways to regulate DPSC cellular activities. The work indicated that miRNAs are promising targets to modulate stem cell regeneration and understanding miRNA-targeted genes and their associated pathways in smoking individuals have significant implications for disease control and prevention.
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Affiliation(s)
- Leyla Tahrani Hardin
- Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California 94103, USA
| | - Nabil Abid
- Department of Molecular and Cellular Biology, High Institute of Biotechnology of Monastir, University of Monastir, Monastir, 5000, Tunisia
- Laboratory of Transmissible Diseases and Biological Active Substances LR99ES27, Faculty of Pharmacy of Monastir, University of Monastir, Monastir, 5000, Tunisia
| | - David Vang
- Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California 94103, USA
| | - Xiaoyuan Han
- Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California 94103, USA
| | - Der Thor
- Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California 94103, USA
| | - David M Ojcius
- Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California 94103, USA
| | - Nan Xiao
- Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California 94103, USA
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Norouzi R, Mohamadzade Z, Norouzi R, Norouzi R, Esmaeili R, Soltani BM. In-silico and in-vitro evidence suggest LINC01405 as a sponge for miR-29b and miR-497-5p, and a potential regulator of Wnt, PI3K, and TGFB signaling pathways in breast carcinoma. Cancer Rep (Hoboken) 2024; 7:e1972. [PMID: 38225865 PMCID: PMC10849987 DOI: 10.1002/cnr2.1972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 12/09/2023] [Accepted: 12/28/2023] [Indexed: 01/17/2024] Open
Abstract
BACKGROUND Carcinoma of the breast, a prevailing factor in female mortality worldwide, involves dysregulation of lncRNAs and microRNAs. AIM The main goal of this research was to predict and experimentally examine the LINC01405 expression status in breast cancer subtypes, along with investigation of its interaction with miR-29b and miR-497-5p that results in regulating PI3-Kinase, WNT, and TGF-beta signaling pathways. METHODS AND RESULTS We performed a meta-analysis of five GEO datasets, encompassing microarray and RNA-seq data, to identify differentially expressed genes. The Cancer Genome Atlas transcriptome dataset was also analyzed to determine essential gene modules, associated with different stages of breast cancer by weighted gene co-expression networks. In addition, networks of drug-gene interactions were constructed to explore potential treatment options. LINC01405 as a microRNA sponge was chosen and examined. furthermore, downstream target genes were discovered. Experimental validation consisted of plasmid constructs used in cell culture experiments, RT-qPCR for expression analysis, and cell cycle assays. Our bioinformatics findings showed higher LINC01405 expression in Basal-like triple-negative breast carcinoma. In contrast, lower expression in Luminal samples was observed compared with normal samples, which was consistently observed in both breast cancer tissues and cell lines. LINC01405 expression level was correlated with miR-29b and miR-497 levels. The MDA-MB-231 cell line demonstrated higher LINC01405 expression and lower miR-29b and miR-497 expression levels. However, SKBR3 and MCF7 cells had lower LINC01405 expression and higher miR-29b and miR-497 levels, suggesting a regulatory role for LINC01405 as a competing endogenous RNA. This was experimentally confirmed when LINC01405 was overexpressed in SKBR3 cells, and the common target genes of miR-29b and miR-497 were upregulated. Additionally, LINC01405 upregulation led to the increased cell populations, proliferation, and upregulation of critical cancer-related genes, including AKT1, AKT3, mTOR, WNT3A, SMAD3, CYCLIN D1, CYCLIN D2, BCL2, and GSK3B. CONCLUSION We revealed the differential expression of LINC01405 in several types of breast cancer and its role in regulating signaling pathways, potentially via scavenging miRNAs. These findings clarified the role of LINC01405 in breast cancer development and identified potential therapeutic targets.
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Affiliation(s)
- Romina Norouzi
- Molecular Genetics Department, Faculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | - Zahra Mohamadzade
- Molecular Genetics Department, Faculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | - Rambod Norouzi
- Molecular Biosciences DepartmentAutonomous University of MadridMadridSpain
| | | | - Rezvan Esmaeili
- Genetics Department, Center for Breast Cancer ResearchMotamed Cancer InstituteTehranIran
| | - Bahram M. Soltani
- Molecular Genetics Department, Faculty of Biological SciencesTarbiat Modares UniversityTehranIran
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Nogueras Pérez R, Heredia-Nicolás N, de Lara-Peña L, López de Andrés J, Marchal JA, Jiménez G, Griñán-Lisón C. Unraveling the Potential of miRNAs from CSCs as an Emerging Clinical Tool for Breast Cancer Diagnosis and Prognosis. Int J Mol Sci 2023; 24:16010. [PMID: 37958993 PMCID: PMC10647353 DOI: 10.3390/ijms242116010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/15/2023] Open
Abstract
Breast cancer (BC) is the most diagnosed cancer in women and the second most common cancer globally. Significant advances in BC research have led to improved early detection and effective therapies. One of the key challenges in BC is the presence of BC stem cells (BCSCs). This small subpopulation within the tumor possesses unique characteristics, including tumor-initiating capabilities, contributes to treatment resistance, and plays a role in cancer recurrence and metastasis. In recent years, microRNAs (miRNAs) have emerged as potential regulators of BCSCs, which can modulate gene expression and influence cellular processes like BCSCs' self-renewal, differentiation, and tumor-promoting pathways. Understanding the miRNA signatures of BCSCs holds great promise for improving BC diagnosis and prognosis. By targeting BCSCs and their associated miRNAs, researchers aim to develop more effective and personalized treatment strategies that may offer better outcomes for BC patients, minimizing tumor recurrence and metastasis. In conclusion, the investigation of miRNAs as regulators of BCSCs opens new directions for advancing BC research through the use of bioinformatics and the development of innovative therapeutic approaches. This review summarizes the most recent and innovative studies and clinical trials on the role of BCSCs miRNAs as potential tools for early diagnosis, prognosis, and resistance.
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Affiliation(s)
- Raquel Nogueras Pérez
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; (R.N.P.); (N.H.-N.); (L.d.L.-P.); (J.L.d.A.); (J.A.M.)
| | - Noelia Heredia-Nicolás
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; (R.N.P.); (N.H.-N.); (L.d.L.-P.); (J.L.d.A.); (J.A.M.)
| | - Laura de Lara-Peña
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; (R.N.P.); (N.H.-N.); (L.d.L.-P.); (J.L.d.A.); (J.A.M.)
- Biosanitary Research Institute of Granada (ibs. GRANADA), University Hospitals of Granada, University of Granada, 18012 Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, 18016 Granada, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain
| | - Julia López de Andrés
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; (R.N.P.); (N.H.-N.); (L.d.L.-P.); (J.L.d.A.); (J.A.M.)
- Biosanitary Research Institute of Granada (ibs. GRANADA), University Hospitals of Granada, University of Granada, 18012 Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, 18016 Granada, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain
| | - Juan Antonio Marchal
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; (R.N.P.); (N.H.-N.); (L.d.L.-P.); (J.L.d.A.); (J.A.M.)
- Biosanitary Research Institute of Granada (ibs. GRANADA), University Hospitals of Granada, University of Granada, 18012 Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, 18016 Granada, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain
| | - Gema Jiménez
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; (R.N.P.); (N.H.-N.); (L.d.L.-P.); (J.L.d.A.); (J.A.M.)
- Biosanitary Research Institute of Granada (ibs. GRANADA), University Hospitals of Granada, University of Granada, 18012 Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, 18016 Granada, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain
| | - Carmen Griñán-Lisón
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; (R.N.P.); (N.H.-N.); (L.d.L.-P.); (J.L.d.A.); (J.A.M.)
- Biosanitary Research Institute of Granada (ibs. GRANADA), University Hospitals of Granada, University of Granada, 18012 Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, 18016 Granada, Spain
- Department of Biochemistry and Molecular Biology II, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain
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6
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Regulation of pleiotropic physiological roles of nitric oxide signaling. Cell Signal 2023; 101:110496. [PMID: 36252791 DOI: 10.1016/j.cellsig.2022.110496] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 10/05/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
Abstract
Nitric Oxide (NO) is a highly diffusible, ubiquitous signaling molecule and a free radical that is naturally synthesized by our body. The pleiotropic effects of NO in biological systems are due to its reactivity with different molecules, such as molecular oxygen (O2), superoxide anion, DNA, lipids, and proteins. There are several contradictory findings in the literature pertaining to its role in oncology. NO is a Janus-faced molecule shown to have both tumor promoting and tumoricidal effects, which depend on its concentration, duration of exposure, and location. A high concentration is shown to have cytotoxic effects by triggering apoptosis, and at a low concentration, NO promotes angiogenesis, metastasis, and tumor progression. Upregulated NO synthesis has been implicated as a causal factor in several pathophysiological conditions including cancer. This dichotomous effect makes it highly challenging to discover its true potential in cancer biology. Understanding the mechanisms by which NO acts in different cancers helps to develop NO based therapeutic strategies for cancer treatment. This review addresses the physiological role of this molecule, with a focus on its bimodal action in various types of cancers.
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7
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Abbas MA, El Sayed IET, Kamel Abdu-Allah AM, Kalam A, Al-Sehemi AG, Al-Hartomy OA, Salah Abd El-rahman M. Expression of MiRNA-29b and MiRNA-31 and their diagnostic and prognostic values in Egyptian females with breast cancer. Noncoding RNA Res 2022; 7:248-257. [PMID: 36247409 PMCID: PMC9530401 DOI: 10.1016/j.ncrna.2022.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 11/22/2022] Open
Abstract
Breast cancer is a major health threat to women globally. Many circulating microRNAs are non-invasive cancer biomarkers. In this study, the expression of miR-29b and miR-31 was assessed in blood samples from 200 patients with breast cancer and wholesome volunteer women using quantitative reverse transcriptase PCR to evaluate their role in the disease. MiR-29b was significantly overexpressed in patients compared to controls. Multivariate regression analysis showed that it was an established risk factor for relapse and mortality. MiR-31 was significantly under-expressed in patients. It was an established risk factor for relapse and was strongly associated with mortality. For the prediction of relapse, miR-29b had a sensitivity of 81.25% and a specificity of 88.24% at a cutoff of > 30.09, while miR-31 had a sensitivity of 87.50% and a specificity of 79.41% at a cutoff of 0.12. The specificity was enhanced to 100% by combining the values of miR-29b and miR-31. In predicting mortality, miR-29b exhibited a sensitivity of 90% and a specificity of 97.5% at a cutoff of > 48.10. At a cutoff of 0.119, miR-31 exhibited a sensitivity of 87.50% and a specificity of 79.41%. High miR-29b expression and low miR-31 expression were linked with a low survival rate. MiR-29b and miR-31 could be useful markers for predicting breast cancer relapse and mortality.
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Mir-29b in Breast Cancer: A Promising Target for Therapeutic Approaches. Diagnostics (Basel) 2022; 12:diagnostics12092139. [PMID: 36140539 PMCID: PMC9497770 DOI: 10.3390/diagnostics12092139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 11/22/2022] Open
Abstract
The miR-29 family comprises miR-29a, miR-29b, and miR-29c, and these molecules play crucial and partially overlapped functions in solid tumors, in which the different isoforms are variously de-regulated and mainly correlated with tumor suppression. miR-29b is the most expressed family member in cancer, in which it is involved in regulating gene expression at both transcriptional and post-transcriptional levels. This review focuses on the role of miR-29b in breast cancer, in which it plays a controversial role as tumor suppressor or onco-miRNA. Here we have highlighted the dual effect of miR-29b on breast tumor features, which depend on the prevailing function of this miRNA, on the mature miR-29b evaluated, and on the breast tumor characteristics. Remarkably, the analyzed miR-29b form emerged as a crucial element in the results obtained by various research groups, as the most abundant miR-29b-3p and the less expressed miR-29b1-5p seem to play distinct roles in breast tumors with different phenotypes. Of particular interest are the data showing that miR-29b1-5p counteracts cell proliferation and migration and reduces stemness in breast tumor cells with a triple negative phenotype. Even if further studies are required to define exactly the role of each miR-29b, our review highlights its possible implication in phenotype-specific management of breast tumors.
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9
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Petroušková P, Hudáková N, Maloveská M, Humeník F, Cizkova D. Non-Exosomal and Exosome-Derived miRNAs as Promising Biomarkers in Canine Mammary Cancer. Life (Basel) 2022; 12:life12040524. [PMID: 35455015 PMCID: PMC9032658 DOI: 10.3390/life12040524] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 02/06/2023] Open
Abstract
Canine mammary cancer (CMC), similar to human breast cancer (HBC) in many aspects, is the most common neoplasm associated with significant mortality in female dogs. Due to the limited therapy options, biomarkers are highly desirable for early clinical diagnosis or cancer progression monitoring. Since the discovery of microRNAs (miRNAs or miRs) as post-transcriptional gene regulators, they have become attractive biomarkers in oncological research. Except for intracellular miRNAs and cell-free miRNAs, exosome-derived miRNAs (exomiRs) have drawn much attention in recent years as biomarkers for cancer detection. Analysis of exosomes represents a non-invasive, pain-free, time- and money-saving alternative to conventional tissue biopsy. The purpose of this review is to provide a summary of miRNAs that come from non-exosomal sources (canine mammary tumor, mammary tumor cell lines or canine blood serum) and from exosomes as promising biomarkers of CMC based on the current literature. As is discussed, some of the miRNAs postulated as diagnostic or prognostic biomarkers in CMC were also altered in HBC (such as miR-21, miR-29b, miR-141, miR-429, miR-200c, miR-497, miR-210, miR-96, miR-18a, miR19b, miR-20b, miR-93, miR-101, miR-105a, miR-130a, miR-200c, miR-340, miR-486), which may be considered as potential disease-specific biomarkers in both CMC and HBC.
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Affiliation(s)
- Patrícia Petroušková
- Centre of Experimental and Clinical Regenerative Medicine, The University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (P.P.); (N.H.); (M.M.); (F.H.)
| | - Nikola Hudáková
- Centre of Experimental and Clinical Regenerative Medicine, The University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (P.P.); (N.H.); (M.M.); (F.H.)
| | - Marcela Maloveská
- Centre of Experimental and Clinical Regenerative Medicine, The University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (P.P.); (N.H.); (M.M.); (F.H.)
| | - Filip Humeník
- Centre of Experimental and Clinical Regenerative Medicine, The University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (P.P.); (N.H.); (M.M.); (F.H.)
| | - Dasa Cizkova
- Centre of Experimental and Clinical Regenerative Medicine, The University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (P.P.); (N.H.); (M.M.); (F.H.)
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 10 Bratislava, Slovakia
- Correspondence: ; Tel.: +421-918-752-157
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10
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Regulation of the tumor suppressor PTEN in triple-negative breast cancer. Cancer Lett 2021; 527:41-48. [PMID: 34902523 DOI: 10.1016/j.canlet.2021.12.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/01/2021] [Accepted: 12/02/2021] [Indexed: 01/01/2023]
Abstract
Triple-negative breast cancer (TNBC) is a subtype of breast cancer (BCa) in which estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER-2) are not expressed. Although TNBC cases account for approximately 15% of all BCa cases, TNBC patients' prognosis is poor compared with that of other BCa subtypes. Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) plays an important role in cell proliferation and migration by negatively regulating the PI3K/Akt pathway. PTEN is one of the most commonly inactivated tumor suppressors in BCa. PTEN inactivity is associated with larger tumor sizes, multiple lymph node metastases, and an aggressive triple-negative phenotype. This review primarily focuses on two key points: (1) PTEN and its function. (2) The regulation of tumor suppressor PTEN in TNBC. We provide a summary of genomic alterations of PTEN in BCa. We further discuss the transcriptional regulation of PTEN and how PTEN is regulated by posttranscription and posttranslational modification, as well as by protein interactions. Finally, we discuss the perspectives of the PTEN protein in TNBC.
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11
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Ahmed KT, Sun J, Chen W, Martinez I, Cheng S, Zhang W, Yong J, Zhang W. In silico model for miRNA-mediated regulatory network in cancer. Brief Bioinform 2021; 22:bbab264. [PMID: 34279571 PMCID: PMC8575005 DOI: 10.1093/bib/bbab264] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 12/12/2022] Open
Abstract
Deregulation of gene expression is associated with the pathogenesis of numerous human diseases including cancer. Current data analyses on gene expression are mostly focused on differential gene/transcript expression in big data-driven studies. However, a poor connection to the proteome changes is a widespread problem in current data analyses. This is partly due to the complexity of gene regulatory pathways at the post-transcriptional level. In this study, we overcome these limitations and introduce a graph-based learning model, PTNet, which simulates the microRNAs (miRNAs) that regulate gene expression post-transcriptionally in silico. Our model does not require large-scale proteomics studies to measure the protein expression and can successfully predict the protein levels by considering the miRNA-mRNA interaction network, the mRNA expression, and the miRNA expression. Large-scale experiments on simulations and real cancer high-throughput datasets using PTNet validated that (i) the miRNA-mediated interaction network affects the abundance of corresponding proteins and (ii) the predicted protein expression has a higher correlation with the proteomics data (ground-truth) than the mRNA expression data. The classification performance also shows that the predicted protein expression has an improved prediction power on cancer outcomes compared to the prediction done by the mRNA expression data only or considering both mRNA and miRNA. Availability: PTNet toolbox is available at http://github.com/CompbioLabUCF/PTNet.
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Affiliation(s)
| | - Jiao Sun
- Department of Computer Science, University of Central Florida, Orlando, FL 32816, USA
| | - William Chen
- Department of Computer Science, University of Central Florida, Orlando, FL 32816, USA
| | - Irene Martinez
- Department of Molecular Biotechnology, Universität Heidelberg, Heidelberg, 69120, Germany
| | - Sze Cheng
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota Twin Cities, Minneapolis, MN 55455, USA
| | - Wencai Zhang
- Division of Cancer Research, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL 32827, USA
| | - Jeongsik Yong
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota Twin Cities, Minneapolis, MN 55455, USA
| | - Wei Zhang
- Department of Computer Science, University of Central Florida, Orlando, FL 32816, USA
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12
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Zhang W, Wu Q, Liu Y, Wang X, Ma C, Zhu W. LncRNA HOTAIR promotes chemoresistance by facilitating epithelial to mesenchymal transition through miR-29b/PTEN/PI3K signaling in cervical cancer. Cells Tissues Organs 2021; 211:16-29. [PMID: 34571508 DOI: 10.1159/000519844] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 09/23/2021] [Indexed: 12/09/2022] Open
Affiliation(s)
- Wenying Zhang
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Soochow University, Suzhou, China
- Department of Gynecology, Shanghai Changning Maternity and Infant Health Hospital, Shanghai, China
| | - Qiongwei Wu
- Department of Gynecology, Shanghai Changning Maternity and Infant Health Hospital, Shanghai, China
| | - Yu Liu
- Department of Gynecology, Shanghai Changning Maternity and Infant Health Hospital, Shanghai, China
| | - Xujie Wang
- Department of Gynecology, Shanghai Changning Maternity and Infant Health Hospital, Shanghai, China
| | - Chengbin Ma
- Department of Gynecology, Shanghai Changning Maternity and Infant Health Hospital, Shanghai, China
| | - Weipei Zhu
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Soochow University, Suzhou, China
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13
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Taefehshokr S, Taefehshokr N, Derakhshani A, Baghbanzadeh A, Astamal RV, Safaei S, Abbasi S, Hajazimian S, Maroufi NF, Isazadeh A, Hajiasgharzadeh K, Baradaran B. The regulatory role of pivotal microRNAs in the AKT signaling pathway in breast cancer. Curr Mol Med 2021; 22:263-273. [PMID: 34238182 DOI: 10.2174/1566524021666210708095051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 04/29/2021] [Accepted: 05/06/2021] [Indexed: 11/22/2022]
Abstract
Breast cancer is the most prevalent type of cancer among women, and it remains the main challenge despite improved treatments. MicroRNAs (miRNAs) are a small non-coding family of RNAs that play an indispensable role in regulating major physiological processes, including differentiation, proliferation, invasion, migration, cell cycle regulation, stem cell maintenance, apoptosis, and organ development. The dysregulation of these tiny molecules is associated with various human malignancies. More than 50% of these non-coding RNA sequences estimated have been placed on genomic regions or fragile sites linked to cancer. Following the discovery of the first signatures of specific miRNA in breast cancer, numerous researches focused on involving these tiny RNAs in breast cancer physiopathology as a new therapeutic approach or as reliable prognostic biomarkers. In the current review, we focus on recent findings related to the involvement of miRNAs in breast cancer via the AKT signaling pathway and the related clinical implications.
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Affiliation(s)
- Sina Taefehshokr
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nima Taefehshokr
- Division of Biosciences, Department of Life Sciences, Brunel University London, Kingston Lane, UB8 3PH, United Kingdom
| | - Afshin Derakhshani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Baghbanzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Vaezi Astamal
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sahar Safaei
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Samane Abbasi
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Saba Hajazimian
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nazila Fathi Maroufi
- Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Isazadeh
- 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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14
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Yadav P, Bandyopadhayaya S, Ford BM, Mandal C. Interplay between DNA Methyltransferase 1 and microRNAs During Tumorigenesis. Curr Drug Targets 2021; 22:1129-1148. [PMID: 33494674 DOI: 10.2174/1389450122666210120141546] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/16/2020] [Accepted: 10/18/2020] [Indexed: 01/18/2023]
Abstract
Cancer is a genetic disease resulting from genomic changes; however, epigenetic alterations act synergistically with these changes during tumorigenesis and cancer progression. Epigenetic variations are gaining more attention as an important regulator in tumor progression, metastasis and therapy resistance. Aberrant DNA methylation at CpG islands is a central event in epigeneticmediated gene silencing of various tumor suppressor genes. DNA methyltransferase 1 (DNMT1) predominately methylates at CpG islands on hemimethylated DNA substrates in proliferation of cells. DNMT1 has been shown to be overexpressed in various cancer types and exhibits tumor-promoting potential. The major drawbacks to DNMT1-targeted cancer therapy are the adverse effects arising from nucleoside and non-nucleoside based DNMT1 inhibitors. This paper focuses on the regulation of DNMT1 by various microRNAs (miRNAs), which may be assigned as future DNMT1 modulators, and highlights how DNMT1 regulates various miRNAs involved in tumor suppression. Importantly, the role of reciprocal inhibition between DNMT1 and certain miRNAs in tumorigenic potential is approached in this review. Hence, this review seeks to project an efficient and strategic approach using certain miRNAs in conjunction with conventional DNMT1 inhibitors as a novel cancer therapy. It has also been pinpointed to select miRNA candidates associated with DNMT1 regulation that may not only serve as potential biomarkers for cancer diagnosis and prognosis, but may also predict the existence of aberrant methylation activity in cancer cells.
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Affiliation(s)
- Pooja Yadav
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh- 305817, Ajmer, Rajasthan, India
| | - Shreetama Bandyopadhayaya
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh- 305817, Ajmer, Rajasthan, India
| | - Bridget M Ford
- Department of Biology, University of the Incarnate Word, San Antonio, TX 78209, United States
| | - Chandi Mandal
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh- 305817, Ajmer, Rajasthan, India
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15
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Peng X, Zhang Z, Mo Y, Liu J, Wang S, Liu H. Bioinformatics Analysis of Choriocarcinoma-Related MicroRNA-Transcription Factor-Target Gene Regulatory Networks and Validation of Key miRNAs. Onco Targets Ther 2021; 14:3903-3919. [PMID: 34234459 PMCID: PMC8254590 DOI: 10.2147/ott.s311291] [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: 03/16/2021] [Accepted: 06/15/2021] [Indexed: 11/23/2022] Open
Abstract
Objective The aim of the current research was to construct a miRNA-transcription factor (TF)-target gene regulatory network in order to investigate the mechanism underlying choriocarcinoma and to verify the network through the overexpression or silencing of hub miRNAs in vitro. Materials and Methods A mRNA expression dataset and two miRNA expression datasets were analysed to identify differentially expressed genes (DEGs) and miRNAs (DEMs) between normal cells and choriocarcinoma cells. The top 400 upregulated and downregulated DEGs were identified as candidate DEGs, which were then mapped to construct protein–protein interaction (PPI) networks and select hub genes. Moreover, the DGIdb database was utilized to select candidate drugs for hub genes. Moreover, DEM target genes were predicted through the miRWalk2.0 database and overlaid with candidate DEGs to identify the differentially expressed target genes (DETGs). Furthermore, we established miRNA-TF-target gene regulatory networks and performed functional enrichment analysis of hub DEMs. Finally, we transfected mimics or inhibitors of hub DEMs into choriocarcinoma cells and assessed cell proliferation and migration to verify the vital role of hub DEMs in choriocarcinoma. Results A total of 140 DEMs and 400 candidate DEGs were screened from choriocarcinoma cells and normal cells. A PPI network of 400 candidate DEGs was established. Twenty-nine hub genes and 99 associated small molecules were identified to provide potential target drugs for choriocarcinoma treatment. We obtained 70 DETGs of DEMs derived from the intersection between predicted miRNA target genes and candidate DEGs. Subsequently, 3 hub DEMs were selected, and miRNA-TF-target gene regulatory networks containing 4 TFs, 3 TFs and 3 TFs for each network were constructed. The RT-PCR results confirmed that miR-29b-3p was highly expressed and that miR-519c-3p and miR-520a-5p were expressed at low levels in choriocarcinoma cells. The overexpression or silencing results suggested that 3 dysregulated hub DEMs jointly accelerated the proliferation and migration of choriocarcinoma. Conclusion Association of miRNA-TF-target gene regulatory networks may help us explore the underlying mechanism and provide potential targets for the diagnosis and treatment of choriocarcinoma.
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Affiliation(s)
- Xiaotong Peng
- Department of Gynaecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
| | - Zhirong Zhang
- Department of Gynaecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
| | - Yanqun Mo
- Department of Gynaecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
| | - Junliang Liu
- Department of Gynaecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
| | - Shuo Wang
- Department of Orthopaedics, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, 200233, People's Republic of China
| | - Huining Liu
- Department of Gynaecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
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Role of Nitric Oxide in Gene Expression Regulation during Cancer: Epigenetic Modifications and Non-Coding RNAs. Int J Mol Sci 2021; 22:ijms22126264. [PMID: 34200849 PMCID: PMC8230456 DOI: 10.3390/ijms22126264] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/06/2021] [Accepted: 06/08/2021] [Indexed: 12/12/2022] Open
Abstract
Nitric oxide (NO) has been identified and described as a dual mediator in cancer according to dose-, time- and compartment-dependent NO generation. The present review addresses the different epigenetic mechanisms, such as histone modifications and non-coding RNAs (ncRNAs), miRNA and lncRNA, which regulate directly or indirectly nitric oxide synthase (NOS) expression and NO production, impacting all hallmarks of the oncogenic process. Among lncRNA, HEIH and UCA1 develop their oncogenic functions by inhibiting their target miRNAs and consequently reversing the inhibition of NOS and promoting tumor proliferation. The connection between miRNAs and NO is also involved in two important features in cancer, such as the tumor microenvironment that includes key cellular components such as tumor-associated macrophages (TAMs), cancer associated fibroblasts (CAFs) and cancer stem cells (CSCs).
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17
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Small in Size, but Large in Action: microRNAs as Potential Modulators of PTEN in Breast and Lung Cancers. Biomolecules 2021; 11:biom11020304. [PMID: 33670518 PMCID: PMC7922700 DOI: 10.3390/biom11020304] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/15/2021] [Accepted: 02/15/2021] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs (miRNAs) are well-known regulators of biological mechanisms with a small size of 19–24 nucleotides and a single-stranded structure. miRNA dysregulation occurs in cancer progression. miRNAs can function as tumor-suppressing or tumor-promoting factors in cancer via regulating molecular pathways. Breast and lung cancers are two malignant thoracic tumors in which the abnormal expression of miRNAs plays a significant role in their development. Phosphatase and tensin homolog (PTEN) is a tumor-suppressor factor that is capable of suppressing the growth, viability, and metastasis of cancer cells via downregulating phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) signaling. PTEN downregulation occurs in lung and breast cancers to promote PI3K/Akt expression, leading to uncontrolled proliferation, metastasis, and their resistance to chemotherapy and radiotherapy. miRNAs as upstream mediators of PTEN can dually induce/inhibit PTEN signaling in affecting the malignant behavior of lung and breast cancer cells. Furthermore, long non-coding RNAs and circular RNAs can regulate the miRNA/PTEN axis in lung and breast cancer cells. It seems that anti-tumor compounds such as baicalein, propofol, and curcumin can induce PTEN upregulation by affecting miRNAs in suppressing breast and lung cancer progression. These topics are discussed in the current review with a focus on molecular pathways.
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Ben-Elazar S, Aure MR, Jonsdottir K, Leivonen SK, Kristensen VN, Janssen EAM, Kleivi Sahlberg K, Lingjærde OC, Yakhini Z. miRNA normalization enables joint analysis of several datasets to increase sensitivity and to reveal novel miRNAs differentially expressed in breast cancer. PLoS Comput Biol 2021; 17:e1008608. [PMID: 33566819 PMCID: PMC7901788 DOI: 10.1371/journal.pcbi.1008608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 02/23/2021] [Accepted: 12/06/2020] [Indexed: 01/24/2023] Open
Abstract
Different miRNA profiling protocols and technologies introduce differences in the resulting quantitative expression profiles. These include differences in the presence (and measurability) of certain miRNAs. We present and examine a method based on quantile normalization, Adjusted Quantile Normalization (AQuN), to combine miRNA expression data from multiple studies in breast cancer into a single joint dataset for integrative analysis. By pooling multiple datasets, we obtain increased statistical power, surfacing patterns that do not emerge as statistically significant when separately analyzing these datasets. To merge several datasets, as we do here, one needs to overcome both technical and batch differences between these datasets. We compare several approaches for merging and jointly analyzing miRNA datasets. We investigate the statistical confidence for known results and highlight potential new findings that resulted from the joint analysis using AQuN. In particular, we detect several miRNAs to be differentially expressed in estrogen receptor (ER) positive versus ER negative samples. In addition, we identify new potential biomarkers and therapeutic targets for both clinical groups. As a specific example, using the AQuN-derived dataset we detect hsa-miR-193b-5p to have a statistically significant over-expression in the ER positive group, a phenomenon that was not previously reported. Furthermore, as demonstrated by functional assays in breast cancer cell lines, overexpression of hsa-miR-193b-5p in breast cancer cell lines resulted in decreased cell viability in addition to inducing apoptosis. Together, these observations suggest a novel functional role for this miRNA in breast cancer. Packages implementing AQuN are provided for Python and Matlab: https://github.com/YakhiniGroup/PyAQN. This work demonstrates a practical approach to the joint-analysis of multiple miRNA expression profiling datasets acquired with different measurement technologies. The use of different platforms in miRNA profiling can lead to major differences in results. In particular, some miRNA species are less amenable to detection and quantification by certain platforms or designs. Our approach, termed AQuN, combines quantile normalization with special attention to missing entities, to normalize miRNA expression across datasets, technologies, designs and platforms. As we show, our proposed approach uncovers patterns of interest that would not have emerged as statistically significant when analyzing the datasets individually or with other standard-practice normalization methods. Amongst our findings, we noted a previously undocumented miRNA that is significantly over-expressed in samples from estrogen-receptor positive breast cancer patients as compared to samples from estrogen-receptor negative patients. We further investigated this miRNA, hsa-miR-193b-5p, and experimentally show, in cell lines, that its expression level impacts the viability of tumor cells. AQuN is available to the community in the form of Python and Matlab packages. The joint-processed data is also made available for further investigation.
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Affiliation(s)
- Shay Ben-Elazar
- School of Computer Science, Tel-Aviv University, Tel-Aviv, Israel
- Department of Computer Science, Interdisciplinary Center, Herzliya, Israel
- * E-mail: (SBE); (MRA); (ZY)
| | - Miriam Ragle Aure
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Department of Medical Genetics, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway
- * E-mail: (SBE); (MRA); (ZY)
| | - Kristin Jonsdottir
- Department of Pathology, Stavanger University Hospital, Stavanger, Norway
- Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, Stavanger, Norway
| | - Suvi-Katri Leivonen
- Helsinki University Hospital Comprehensive Cancer Centre and University of Helsinki, Helsinki, Finland
| | - Vessela N. Kristensen
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Department of Medical Genetics, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway
- Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Clinical Molecular Biology and Laboratory Science (EpiGen), Division of Medicine, Akershus University Hospital, Lørenskog, Norway
| | - Emiel A. M. Janssen
- Department of Pathology, Stavanger University Hospital, Stavanger, Norway
- Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, Stavanger, Norway
| | - Kristine Kleivi Sahlberg
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Department of Research, Vestre Viken Hospital Trust, Drammen, Norway
| | - Ole Christian Lingjærde
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
| | - Zohar Yakhini
- Department of Computer Science, Interdisciplinary Center, Herzliya, Israel
- Department of Computer Science, Technion–Israel Institute of Technology, Haifa, Israel
- * E-mail: (SBE); (MRA); (ZY)
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Wang Y, Han X, Zang T, Kang P, Jiang W, Niu N. miR-29b enhances the proliferation and migration of bone marrow mesenchymal stem cells in rats with castration-induced osteoporosis through the PI3K/AKT and TGF-β/Smad signaling pathways. Exp Ther Med 2020; 20:3185-3195. [PMID: 32855687 PMCID: PMC7444379 DOI: 10.3892/etm.2020.9045] [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: 01/15/2020] [Accepted: 05/29/2020] [Indexed: 12/14/2022] Open
Abstract
The aim of the present study was to investigate the role of microRNA (miR)-29b in the proliferation and migration of bone marrow mesenchymal stem cells (BMSCs) in rats with castration-induced osteoporosis and the relevant mechanisms. The gene expression profiling microarray technique was utilized to sequence the BMSCs with overexpressed miR-29b. The intersection of the potential targets and the genes downregulated in the sequencing were utilized for GO enrichment analysis. Gene set enrichment analysis (GSEA) was employed to analyze the effect of miR-29b on signaling pathways. Additionally, the effects of miR-29b overexpression on the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) and transforming growth factor-β (TGF-β)/Drosophila mothers against decapentaplegic protein (Smad) signaling pathways were detected via RT-qPCR assay and western blotting. The expression level of miR-29b was found to be significantly reduced in bone marrow tissues of postmenopausal osteoporosis patients and BMSCs of rats with castration-induced osteoporosis established via ovariectomy. Based on transcriptome sequencing and bioinformatics software prediction, 76 potential targets of miR-29b were obtained, which were distinctly enriched in such biological processes as cell proliferation, cell cycle, cell migration and cell adhesion. The results of CCK-8 and EdU assays showed that overexpression of miR-29b overtly promoted the proliferation of BMSCs in rats with castration-induced osteoporosis. Moreover, the Transwell assay results revealed that the overexpression of miR-29b significantly facilitated the migration of BMSCs in rats with castration-induced osteoporosis. According to RT-qPCR assay and western blotting, miR-29b activated the PI3K/AKT and TGF-β/Smad signaling pathways. miR-29b exhibited a clearly lower expression level in the bone marrow tissues of the postmenopausal osteoporosis patients and BMSCs of rats with castration-induced osteoporosis established via ovariectomy. Overexpression of miR-29b was able to enhance the proliferation and migration ability of BMSCs in rats with castration-induced osteoporosis, and such an enhancement may be correlated with the activation of the PI3K/AKT and TGF-β/Smad signaling pathways.
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Affiliation(s)
- Yuhui Wang
- Department of Clinical Laboratory, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Xiangmin Han
- Department of Clinical Laboratory, Jinan Zhangqiu District Hospital of TCM, Jinan, Shandong 250200, P.R. China
| | - Tongxin Zang
- Department of Orthopaedics, Qingdao Central Hospital, Qingdao University, Qingdao, Shandong 266042, P.R. China
| | - Ping Kang
- Department of Rehabilitation, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Wei Jiang
- Department of Cardio-Thoracic Surgery, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Niu Niu
- Department of Clinical Laboratory, Qingdao No. 9 People's Hospital, Qingdao, Shandong 266002, P.R. China
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20
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Pourmoshir N, Motalleb GH, Vallian S. hsa-miR-423 rs6505162 Is Associated with The Increased Risk of Breast Cancer in Isfahan Central Province of Iran. CELL JOURNAL 2020; 22:110-116. [PMID: 32779440 PMCID: PMC7481896 DOI: 10.22074/cellj.2020.7011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/16/2019] [Indexed: 12/27/2022]
Abstract
Objective Thirteen million cancer deaths and 21.7 million new cancer cases are expected in the world by 2030. Breast cancer is considered as the main cause of cancer mortality in women aged 20-59 years. microRNAs (miRNAs) regulate gene expression at the post-transcriptional level and they are highly expressed in malignancies, including breast cancer. The role of miRNAs in the pathogenesis of breast cancer is not fully understood. In the present study, for the first time, the impact of hsa-miR-423 rs6505162 on breast cancer risk was investigated in the central province of Iran, Isfahan. Materials and Methods This case-control study was conducted on 153 clinicopathological proven breast cancer patients and 153 sex-matched healthy women with no history of any cancer type and relative patients. The patients and controls were genotyped and association of their clinical characteristics with hsa-miR-423 rs6505162 genotype was analyzed. Results The findings indicated that CC genotype of hsa-miR-423 rs6505162 was associated with the increased risk of breast cancer [odds ratio (OR)=2.37, 95% confidence interval (CI)=1.29-4.35 and P=0.0023, CC vs. AA]. Conclusion The data suggested that hsa-miR-423 rs6505162 could be considered as a novel risk factor in breast cancer pathogenesis in Isfahan province of Iran.
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Affiliation(s)
- Nadia Pourmoshir
- Division of Cell and Molecular Biology, Department of Biology, Faculty of Science, University of Zabol, Zabol, Iran
| | - G Holamreza Motalleb
- Division of Cell and Molecular Biology, Department of Biology, Faculty of Science, University of Zabol, Zabol, Iran.
| | - Sadeq Vallian
- Division of Genetics, Department of Cellular and Molecular Biology and Microbiology, Faculty of Science and Technology, University of Isfahan, Isfahan, Iran.
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21
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Fu Q, Zhang J, Huang G, Zhang Y, Zhao M, Zhang Y, Xie J. microRNA-29b inhibits cell growth and promotes sensitivity to oxaliplatin in colon cancer by targeting FOLR1. Biofactors 2020; 46:136-145. [PMID: 31621972 DOI: 10.1002/biof.1579] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 09/25/2019] [Indexed: 12/18/2022]
Abstract
The present study was aimed to explore the functional role of microRNA (miR)-29b in colon cancer, as well as underlying mechanisms. Expressions of miR-29b and folate receptor 1 (FOLR1) were measured in both human colon tumor samples and cell lines. Colon cancer cell lines SW480 and SW620 were transfected with miR-29b mimic, antisense oligonucleotides (ASO)-miR-29b, small interfering (siRNA) against FOLR1 (si-FOLR1), or corresponding negative controls (NCs), and then were incubated with or without oxaliplatin (L-OHP). Thereafter, cell viability, cytotoxicity, cell apoptosis, and expression of FOLR1, ATP Binding Cassette Subfamily G Member 2 (ABCG2) and p-glycoprotein (p-gp) were analyzed. We found that miR-29b was significantly decreased, while FOLR1 was statistically elevated in colon cancer samples and cell lines compared to the nontumor samples and nontumourigenic immortalized human colon epithelial cell line FHC. Overexpression of miR-29b markedly inhibited cell viability, promoted sensitivity to L-OHP, stimulated cell apoptosis (all p < .05), and decreased the levels of ABCG2 and p-gp in cancer cells, whereas suppression of miR-29b showed contrary results. Moreover, we observed that FOLR1 was a direct target of miR-29b and was negatively regulated by miR-29b. In addition, the findings revealed that the effects of FOLR1 inhibition on cell viability, sensitivity to L-OHP, cell apoptosis, and the levels of ABCG2 and p-gp were similar to overexpression of miR-29b. Taken together, our study suggests that miR-29b inhibits cell growth and promotes sensitivity to L-OHP in colon cancer by targeting FOLR1.
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Affiliation(s)
- Qiang Fu
- Department of General Surgery, Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jindai Zhang
- Department of General Surgery, Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Gaofeng Huang
- Department of General Surgery, Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yonglei Zhang
- Department of General Surgery, Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Minghai Zhao
- Department of General Surgery, Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yongchao Zhang
- Department of General Surgery, Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jianguo Xie
- Department of General Surgery, Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Cao Q, Deji QZ, Liu YJ, Ye W, Zhaba WD, Jiang Q, Yan F. The role of mechanical stretch and TGF-β2 in epithelial-mesenchymal transition of retinal pigment epithelial cells. Int J Ophthalmol 2019; 12:1832-1838. [PMID: 31850164 DOI: 10.18240/ijo.2019.12.03] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 11/06/2019] [Indexed: 12/17/2022] Open
Abstract
AIM To explore the effects and mechanisms of mechanical stress and transforming growth factor-beta2 (TGF-β2) on epithelial-mesenchymal transition (EMT) in cultured human retinal pigment epithelial (RPE) cells. METHODS Human RPE cells were inoculated on BioFex 6-well plates and RPE cells received 0, 1, 2, 3, or 4 mild stretch injuries delivered 3h apart after 24h of culture. The device of mechanical stress parameters were set to sine wave, frequency 1 Hz, stretch strength 20%. For treatment with TGF-β2, when the inoculated RPE cells in 6-well plates were around 60% confluent, serum was reduced to 0 for 12h and recombinant human TGF-β2 (0, 1, 5, 10 ng/mL) was added for 48h. α-SMA, Vimentin and N-Cadherin, fibronectin proteins expressions were detected by Western blotting, confocal cell immunofluorescence and quantitative real-time polymerase chain reaction (qRT-PCR). Then we detected the change of miRNA-29b and ascertained the changes of phosphatidylinositol 3-kinase-serine threonine protein kinase (PI3K/Akt) pathway after RPE cells were stretched by the device of mechanical stress and induced by TGF-β2 by Western blotting, confocal cell immunofluorescence and qRT-PCR. RESULTS Mechanical stress induce EMT and activate the PI3K/Akt pathway in ways that lead to the EMT process. TGF-β2 induce RPE cells EMT and in a certain range and TGF-β2 decrease the miRNA-29b expression in RPE cells, and the inhibitory effect is more obvious with the increase of TGF-β2 concentration. CONCLUSION Our findings are crucial steps in determining the critical roles of the PI3K/Akt signaling pathway and miRNA-29b in pathogenesis of proliferative vitreoretinopathy (PVR) which may be a potential target for preventing or treating PVR.
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Affiliation(s)
- Qian Cao
- Eye Hospital, Nanjing Medical University, Nanjing 210002, Jiangsu Province, China.,The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing 210002, Jiangsu Province, China
| | - Qu-Zhen Deji
- Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Ya-Jun Liu
- Department of Ophthalmology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Wei Ye
- School of Second Military Medical University, Department of Ophthalmology, Jinling Hospital, Nanjing 210002, Jiangsu Province, China
| | - Wang-Dui Zhaba
- Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Qin Jiang
- Eye Hospital, Nanjing Medical University, Nanjing 210002, Jiangsu Province, China.,The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing 210002, Jiangsu Province, China
| | - Feng Yan
- Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, Jiangsu Province, China
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Rapamycin-upregulated miR-29b promotes mTORC1-hyperactive cell growth in TSC2-deficient cells by downregulating tumor suppressor retinoic acid receptor β (RARβ). Oncogene 2019; 38:7367-7383. [PMID: 31420607 DOI: 10.1038/s41388-019-0957-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/25/2019] [Accepted: 08/05/2019] [Indexed: 12/23/2022]
Abstract
miR-29b has been identified as a rapamycin-induced microRNA (miRNA) in Tsc2-deficient, mTORC1-hyperactive cells. The biological significance of this induction of miR-29b is unknown. We have found that miR-29b acts as an oncogenic miRNA in Tsc2-deficient cells: inhibition of miR-29b suppressed cell proliferation, anchorage-independent cell growth, cell migration, invasion, and the growth of Tsc2-deficient tumors in vivo. Importantly, the combination of miR-29b inhibition with rapamycin treatment further inhibited these tumor-associated cellular processes. To gain insight into the molecular mechanisms by which miR-29b promotes tumorigenesis, we used RNA sequencing to identify the tumor suppressor retinoid receptor beta (RARβ) as a target gene of miR-29b. We found that miR-29b directly targeted the 3'UTR of RARβ. Forced expression of RARβ reversed the effects of miR-29b overexpression in proliferation, migration, and invasion, indicating that it is a critical target. miR-29b expression correlated with low RARβ expression in renal clear cell carcinomas and bladder urothelial carcinomas, tumors associated with TSC gene mutations. We further identified growth family member 4 (ING4) as a novel interacting partner of RARβ. Overexpression of ING4 inhibited the migration and invasion of Tsc2-deficient cells while silencing of ING4 reversed the RARβ-mediated suppression of cell migration and invasion. Taken together, our findings reveal a novel miR-29b/RARβ/ING4 pathway that regulates tumorigenic properties of Tsc2-deficient cells, and that may serve as a potential therapeutic target for TSC, lymphangioleiomyomatosis (LAM), and other mTORC1-hyperactive tumors.
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24
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Liang T, Wang Y, Wang Y, Wang Y. Retracted
: Long noncoding RNA PEG10 facilitates bladder cancer cells proliferation, migration, and invasion via repressing microRNA‐29b. J Cell Physiol 2019; 234:19740-19749. [DOI: 10.1002/jcp.28574] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 03/07/2019] [Accepted: 03/14/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Tingting Liang
- Cancer Center The First Hospital of Jilin University Changchun Jilin China
| | - Yongkun Wang
- Department of Orthopedics China‐Japan Union Hospital of Jilin University Changchun Jilin China
| | - Yonggang Wang
- Department of Urology China‐Japan Union Hospital of Jilin University Changchun Jilin China
| | - Yao Wang
- Department of Urology China‐Japan Union Hospital of Jilin University Changchun Jilin China
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25
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Xu W, Li Z, Zhu X, Xu R, Xu Y. miR-29 Family Inhibits Resistance to Methotrexate and Promotes Cell Apoptosis by Targeting COL3A1 and MCL1 in Osteosarcoma. Med Sci Monit 2018; 24:8812-8821. [PMID: 30518744 PMCID: PMC6292150 DOI: 10.12659/msm.911972] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background MicroRNAs (miRNAs) play a crucial role in regulating diverse biological processes, including drug resistance. We investigated the potential roles of the miR-29 family in methotrexate (MTX) resistance in osteosarcoma. Material/Methods Two MTX-resistant osteosarcoma cell lines, MG-63/MTX and U2OS/MTX, were generated by continuous exposure to stepwise increasing concentrations of MTX. miR-29abc, COL3A1, and MCL1 mRNA expression levels were determined using quantitative real-time PCR (qRT-PCR). Protein expression levels of COL3A1 and MCL1 were detected by Western blot. Cell viability, IC50 value, and cell apoptosis were assessed by CCK-8 assay and flow cytometry, respectively. The target relationship between the miR-29 family and COL3A1 or MCL1 was confirmed by luciferase reporter assay. Results miR-29a, miR-29b, and miR-29c were significantly downregulated in MG-63/MTX and U2OS/MTX cells and in chemotherapy poor-response osteosarcoma tissues. Overexpression of the miR-29 family sensitized MG-63/MTX and U2OS/MTX cells to MTX and obviously promoted cell apoptosis compared with negative control. COL3A1 and MCL1 were identified to be target genes of the miR-29 family, and transfection with miR-29abc mimics in MG-63/MTX and U2OS/MTX cells decreased COL3A1 and MCL1 mRNA and protein expression. Meanwhile, overexpression of COL3A1 and MCL1 partly neutralized the effects of the miR-29 family on MTX resistance and cell apoptosis. Conclusions Taken together, our findings suggested a tumor-suppressor role of the miR-29 family in control of MTX resistance and cell apoptosis through regulating COL3A1 or MCL1. Targeting the miR-29 family might provide new strategies to overcome the high-dosage MTX-induced cytotoxicity in osteosarcoma treatment.
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Affiliation(s)
- Wei Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China (mainland).,TongRen Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China (mainland)
| | - Zhikun Li
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China (mainland)
| | - Xiaodong Zhu
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China (mainland)
| | - Ruijun Xu
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China (mainland)
| | - Youjia Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)
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Ushio N, Rahman MM, Maemura T, Lai YC, Iwanaga T, Kawaguchi H, Miyoshi N, Momoi Y, Miura N. Identification of dysregulated microRNAs in canine malignant melanoma. Oncol Lett 2018; 17:1080-1088. [PMID: 30655868 PMCID: PMC6313064 DOI: 10.3892/ol.2018.9692] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 09/27/2018] [Indexed: 12/29/2022] Open
Abstract
Inhibiting aberrantly upregulated microRNAs (miR/miRNAs) has emerged as a novel focus for therapeutic intervention in human melanoma. Thus, identifying upregulated miRNAs is essential for identifying additional melanoma-associated therapeutic targets. In the present study, microarray-based miRNA profiling of canine malignant melanoma (CMM) tissue obtained from the oral cavity was performed and differential expression was confirmed by a reverse transcription-quantitative polymerase chain reaction (RT-qPCR). An analysis of the microarray data revealed 17 dysregulated miRNAs; 5 were upregulated and 12 were downregulated. RT-qPCR analysis was performed for 2 upregulated (miR-204 and miR-383), 3 downregulated (miR-122, miR-143 and miR-205) and 6 additional oncogenic miRNAs (oncomiRs; miR-16, miR-21, miR-29b, miR-92a, miR-125b and miR-222). The expression levels of seven of the miRNAs, miR-16, miR-21, miR-29b, miR-122, miR-125b, miR-204 and miR-383 were significantly upregulated; however, the expression of miR-205 was downregulated in CMM tissues compared with normal oral tissues. The microarray and RT-qPCR analyses validated the upregulation of two potential oncomiRs miR-204 and miR-383. The present study additionally constructed a protein interaction network and a miRNA-target regulatory interaction network using STRING and Cytoscape. In the proposed network, cyclin dependent kinase 2 was a target for miR-383, sirtuin 1 and tumor protein p53 were targets for miR-204 and ATR serine/threonine kinase was a target for both. It was concluded that miR-383 and miR-204 were potential oncomiRs that may be involved in regulating melanoma development by evading DNA repair and apoptosis.
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Affiliation(s)
- Norio Ushio
- Department of Clinical Veterinary Science, United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8511, Japan
| | - Md Mahfuzur Rahman
- Department of Clinical Veterinary Science, United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8511, Japan
| | - Tadashi Maemura
- Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima 890-0065, Japan
| | - Yu-Chang Lai
- Department of Clinical Veterinary Science, United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8511, Japan.,Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima 890-0065, Japan
| | - Tomoko Iwanaga
- Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima 890-0065, Japan
| | - Hiroaki Kawaguchi
- Department of Hygiene and Health Promotion Medicine, Graduate School of Medicine and Dental Sciences, Kagoshima University, Korimoto, Kagoshima 890-0065, Japan
| | - Noriaki Miyoshi
- Department of Veterinary Histopathology, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima 890-0065, Japan
| | - Yasuyuki Momoi
- Department of Veterinary Diagnostic Imaging, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima 890-0065, Japan
| | - Naoki Miura
- Department of Clinical Veterinary Science, United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8511, Japan.,Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima 890-0065, Japan
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Liu Y, Ren H, Wang J, Yang F, Li J, Zhou Y, Yuan X, Zhu W, Shi X. Prostaglandin E 2 secreted by mesenchymal stem cells protects against acute liver failure via enhancing hepatocyte proliferation. FASEB J 2018; 33:2514-2525. [PMID: 30260707 DOI: 10.1096/fj.201801349rr] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bone marrow-derived mesenchymal stem cells (MSCs) have been recently used in clinical trials as treatment for liver diseases. However, the underlying mechanism of their effectiveness remains largely unexplored. In the present study, we confirmed that the protective effects of MSCs on mouse model of acute liver failure (ALF) were based on MSC-secreted prostaglandin (PG)E2. Our data confirmed that MSC-secreted PGE2 not only inhibited apoptosis but also enhanced hepatocyte proliferation, thus attenuating ALF. Moreover, Yes-associated protein (YAP) played a major role in PGE2-triggered hepatocyte proliferation. In vitro studies showed that PGE2 increased the expression of PGE4 and enhanced the phosphorylation of cAMP response element binding protein, resulting in YAP activation and increased expression of YAP-related genes. Furthermore, the mammalian target of rapamycin, another major regulator of cell proliferation, was activated by YAP via suppressing phosphatase and tensin homolog through miR-29a-3p. These pathways coordinated to control cell proliferation. Collectively, MSCs could promote the recovery of ALF through PGE2-induced hepatocyte proliferation.-Liu, Y., Ren, H., Wang, J., Yang, F., Li, J., Zhou, Y., Yuan, X., Zhu, W., Shi, X. Prostaglandin E2 secreted by mesenchymal stem cells protects against acute liver failure via enhancing hepatocyte proliferation.
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Affiliation(s)
- Yang Liu
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and
| | - Haozhen Ren
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and
| | - Jinglin Wang
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and
| | - Faji Yang
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and
| | - Jun Li
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and
| | - Yuan Zhou
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and
| | - Xianwen Yuan
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and
| | - Wei Zhu
- Department of Anesthesiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Xiaolei Shi
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and
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28
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Poursadegh Zonouzi AA, Shekari M, Nejatizadeh A, Shakerizadeh S, Fardmanesh H, Poursadegh Zonouzi A, Rahmati-Yamchi M, Tozihi M. Impaired expression of Drosha in breast cancer. Breast Dis 2018; 37:55-62. [PMID: 28598829 DOI: 10.3233/bd-170274] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Impaired miRNAs processing pathway is one interesting scenario for global downregulation of the miRNAome in various types of malignancy. We previously reported that DGCR8 and Dicer genes dysregulated in patients with breast cancer. OBJECTIVE To evaluate the expression pattern of Drosha in patients with breast cancer. METHODS We evaluated the mRNA expression level of Drosha in 70 fresh breast carcinomas and adjacent non-neoplastic tissue using quantitative real-time PCR and assessed the possible correlation between its expression and clinicopathological parameters. RESULTS Our results revealed that mRNA expression level of Drosha was decreased in tumors when compared to adjacent non-neoplastic tissue. However, this difference is not statistically significant (P > 0.05). Downregulation of Drosha is related to older age at diagnosis, higher histological grade, higher tumor size and metastasis. However, there was no significant correlation between Drosha expression level and clinicopathological parameters (P > 0.05). We found that Drosha expression negatively correlated with DGCR8 (P = 0.043), whereas dysregulated expression levels of Drosha and Dicer are positively correlated with to each other (P < 0.0001). CONCLUSION This study provides evidence that the expression of Drosha is impaired in breast cancer. However, the molecular basis of observed expression pattern have remained inexplicable and should be further investigated.
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Affiliation(s)
| | - Mohammad Shekari
- Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Azim Nejatizadeh
- Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Samira Shakerizadeh
- Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Hedieh Fardmanesh
- Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | | | | | - Majid Tozihi
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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29
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Expression Analysis of miR-29b in Malignant and Benign Breast Tumors: A Promising Prognostic Biomarker for Invasive Ductal Carcinoma With a Possible Histotype-Related Expression Status. Clin Breast Cancer 2018; 18:305-312.e3. [DOI: 10.1016/j.clbc.2017.11.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/02/2017] [Accepted: 11/11/2017] [Indexed: 12/15/2022]
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30
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Ferguson S, Kim S, Lee C, Deci M, Nguyen J. The Phenotypic Effects of Exosomes Secreted from Distinct Cellular Sources: a Comparative Study Based on miRNA Composition. AAPS JOURNAL 2018; 20:67. [PMID: 29713834 DOI: 10.1208/s12248-018-0227-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 04/06/2018] [Indexed: 12/20/2022]
Abstract
Exosomes are nano-sized vesicles composed of lipids, proteins, and nucleic acids. Their molecular landscape is diverse, and exosomes derived from different cell types have distinct biological activities. Since exosomes are now being utilized as delivery vehicles for exogenous therapeutic cargoes, their intrinsic properties and biological effects must be understood. We performed miRNA profiling and found substantial differences in the miRNA landscape of prostate cancer (PC3) and human embryonic kidney (HEK) 293 exosomes with little correlation in abundance of common miRNAs (R2 = 0.16). Using a systems-level bioinformatics approach, the most abundant miRNAs in PC3 exosomes but not HEK exosomes were predicted to significantly modulate integrin signaling, with integrin-β3 loss inducing macrophage M2 polarization. PC3 but not HEK exosomes downregulated integrin-β3 expression levels by 70%. There was a dose-dependent polarization of RAW 264.7 macrophages toward an M2 phenotype when treated with PC3-derived exosomes but not HEK-derived exosomes. Conversely, HEK exosomes, widely utilized as delivery vehicles, were predicted to target cadherin signaling, with experimental validation showing a significant increase in the migratory potential of MCF7 breast cancer cells treated with HEK exosomes. Even widely utilized exosomes are unlikely to be inert, and their intrinsic activity ought to be assessed before therapeutic deployment.
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Affiliation(s)
- Scott Ferguson
- Department of Pharmaceutical Sciences, School of Pharmacy, University at Buffalo, The State University of New York, Buffalo, New York, 14214, USA
| | - Sera Kim
- Department of Pharmaceutical Sciences, School of Pharmacy, University at Buffalo, The State University of New York, Buffalo, New York, 14214, USA
| | - Christine Lee
- Department of Pharmaceutical Sciences, School of Pharmacy, University at Buffalo, The State University of New York, Buffalo, New York, 14214, USA
| | - Michael Deci
- Department of Pharmaceutical Sciences, School of Pharmacy, University at Buffalo, The State University of New York, Buffalo, New York, 14214, USA
| | - Juliane Nguyen
- Department of Pharmaceutical Sciences, School of Pharmacy, University at Buffalo, The State University of New York, Buffalo, New York, 14214, USA.
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31
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Drago-Ferrante R, Pentimalli F, Carlisi D, De Blasio A, Saliba C, Baldacchino S, Degaetano J, Debono J, Caruana-Dingli G, Grech G, Scerri C, Tesoriere G, Giordano A, Vento R, Di Fiore R. Suppressive role exerted by microRNA-29b-1-5p in triple negative breast cancer through SPIN1 regulation. Oncotarget 2018; 8:28939-28958. [PMID: 28423652 PMCID: PMC5438704 DOI: 10.18632/oncotarget.15960] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 02/18/2017] [Indexed: 01/06/2023] Open
Abstract
MiR-29 family dysregulation occurs in various cancers including breast cancers. We investigated miR-29b-1 functional role in human triple negative breast cancer (TNBC) the most aggressive breast cancer subtype. We found that miR-29b-1-5p was downregulated in human TNBC tissues and cell lines. To assess whether miR-29b-1-5p correlated with TNBC regenerative potential, we evaluated cancer stem cell enrichment in our TNBC cell lines, and found that only MDA-MB-231 and BT-20 produced primary, secondary and tertiary mammospheres, which were progressively enriched in OCT4, NANOG and SOX2 stemness genes. MiR-29b-1-5p expression inversely correlated with mammosphere stemness potential, and miR-29b-1 ectopic overexpression decreased TNBC cell growth, self-renewal, migration, invasiveness and paclitaxel resistance repressing WNT/βcatenin and AKT signaling pathways and stemness regulators. We identified SPINDLIN1 (SPIN1) among predicted miR-29b-1-5p targets. Consistently, SPIN1 was overexpressed in most TNBC tissues and cell lines and negatively correlated with miR-29b-1-5p. Target site inhibition showed that SPIN1 seems to be directly controlled by miR-29b-1-5p. Silencing SPIN1 mirrored the effects triggered by miR-29b-1 overexpression, whereas SPIN1 rescue by SPIN1miScript protector, determined the reversal of the molecular effects produced by the mimic-miR-29b-1-5p. Overall, we show that miR-29b-1 deregulation impacts on multiple oncogenic features of TNBC cells and their renewal potential, acting, at least partly, through SPIN1, and suggest that both these factors should be evaluated as new possible therapeutic targets against TNBC.
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Affiliation(s)
- Rosa Drago-Ferrante
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Polyclinic, Palermo, Italy
| | - Francesca Pentimalli
- Oncology Research Center of Mercogliano (CROM), Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione Giovanni Pascale", IRCCS, Naples, Italy
| | - Daniela Carlisi
- Laboratory of Biochemistry, Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Polyclinic, Palermo, Italy
| | - Anna De Blasio
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Polyclinic, Palermo, Italy
| | - Christian Saliba
- Centre of Molecular Medicine and Biobanking, University of Malta, Msida, MSD, Malta
| | - Shawn Baldacchino
- Department of Pathology, Faculty of Medicine and Surgery, University of Malta, Msida, MSD, Malta
| | - James Degaetano
- Department of Pathology, Mater Dei Hospital, Msida, MSD, Malta
| | - Joseph Debono
- Department of Surgery, Mater Dei Hospital, Msida, MSD, Malta
| | | | - Godfrey Grech
- Department of Pathology, Faculty of Medicine and Surgery, University of Malta, Msida, MSD, Malta
| | - Christian Scerri
- Department of Pathology, Mater Dei Hospital, Msida, MSD, Malta.,Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, MSD, Malta
| | - Giovanni Tesoriere
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, USA.,Associazione Siciliana per la Lotta contro i Tumori (ASLOT), Palermo, Italy
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, USA.,Department of Medicine, Surgery & Neuroscience University of Siena, Italy
| | - Renza Vento
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Polyclinic, Palermo, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, USA.,Associazione Siciliana per la Lotta contro i Tumori (ASLOT), Palermo, Italy
| | - Riccardo Di Fiore
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Polyclinic, Palermo, Italy.,Associazione Siciliana per la Lotta contro i Tumori (ASLOT), Palermo, Italy
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32
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Wang LH, Huang J, Wu CR, Huang LY, Cui J, Xing ZZ, Zhao CY. Downregulation of miR‑29b targets DNMT3b to suppress cellular apoptosis and enhance proliferation in pancreatic cancer. Mol Med Rep 2018; 17:2113-2120. [PMID: 29207141 PMCID: PMC5783451 DOI: 10.3892/mmr.2017.8145] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 05/19/2017] [Indexed: 12/16/2022] Open
Abstract
As one of the most aggressive types of tumor, pancreatic cancer is a principal cause of tumor‑associated mortality. Negative associations between microRNA‑29 (miR‑29) and DNA methyltransferases (DNMT) 3a and 3b have been demonstrated to be associated with the carcinogenesis of a number of types of cancer; however, this has not been completely elucidated in pancreatic cancer. In the present study, pancreatic cancer tissues (n=15) and corresponding paracancerous tissues (n=15) were obtained and the results of reverse transcription‑quantitative polymerase chain reaction analysis indicated decreased expression of miR‑29b and enhanced mRNA expression of DNMT3b in pancreatic cancer tissues, compared with the corresponding paracancerous tissues. Increased protein expression of DNMT3b was demonstrated by western blotting and immunohistochemistry. In addition, the negative association between miR‑29b and DNMT3b was noted in pancreatic cancer tissues, and luciferase reporter assays confirmed that miR‑29b was able to directly target DNMT3b in vitro. Notably, miR‑29b overexpression was able to decrease cell viability and to promote the apoptosis by targeting DNMT3b, and the knockdown of DNMT3b exhibited consistent results in vitro and in vivo. The results of the present study suggested that miR‑29b, as a tumor suppressor, may be a novel target for the development of treatments for pancreatic cancer.
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Affiliation(s)
- Li-Hua Wang
- Department of Gastroenterology, Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Ju Huang
- Department of Queen Mary University, Medical College of Nanchang University, Nanchang, Jiangxi 330038, P.R. China
| | - Cheng-Rong Wu
- Department of Gastroenterology, Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Liu-Ye Huang
- Department of Gastroenterology, Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Jun Cui
- Department of Gastroenterology, Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Zhi-Zhi Xing
- Department of Gastroenterology, Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Chun-Yu Zhao
- Department of Gastroenterology, Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
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Gao C, Zhang RS, Zheng N, Wang C. Adeno-associated virus type 2-mediated gene transfer of a short hairpin-RNA targeting human IGFBP-2 suppresses the proliferation and invasion of MDA-MB-468 cells. Mol Med Rep 2018; 17:4383-4391. [PMID: 29344663 PMCID: PMC5802212 DOI: 10.3892/mmr.2018.8434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 08/14/2017] [Indexed: 01/25/2023] Open
Abstract
Adeno-associated virus 2 (AAV2) is prepotent in the biological treatment of breast tumor because of its low pathogenicity and immunogenicity. Our previous study demonstrated that insulin‑like growth factor‑binding protein 2 (IGFBP‑2) was highly expressed in patients with breast metastasis. In the present study, the effects of recombinant AAV2 on the growth and metastasis of breast cancer cells were determined in vitro, and in vivo. rAAV2-ZsGreen-shRNA-scramble and rAAV2‑ZsGreen‑shRNA‑hIGFBP‑2 were used to transfect MDA‑MB‑468, and MCF‑10A cells respectively, and observed that these virus could not penetrate the normal human breast epithelia MCF‑10A cell line. To investigate the effect of the recombinant virus on chemotherapeutics, paclitaxel was added to MDA‑MB‑468 cells and it was demonstrated that rAAV2‑ZsGreen‑shRNA‑hIGFBP-2-infected MDA-MB-468 cells were highly chemosensitive to paclitaxel compared with rAAV2‑ZsGreen‑shRNA‑scramble‑injected cells. In addition, it was demonstrated that the invasive ability of rAAV2‑ZsGreen‑shRNA‑hIGFBP‑2‑infected MDA-MB-468 cells was highly impaired compared with the rAAV2‑ZsGreen‑shRNA‑scramble group. In the nude mice xenografts, the rAAV2‑ZsGreen‑shRNA‑hIGFBP‑2 injection inhibited tumor growth and Ki‑67 expression was significantly downregulated compared with the scramble group. Following IGFBP‑2 knockdown using rAAV2-ZsGreen-shRNA-hIGFBP‑2, matrix metalloproteinase‑2 expression was significantly reduced in tumor tissues compared with that in rAAV2‑ZsGreen‑shRNA‑scramble treated tumor tissues. These findings have provided a direction for the application of novel AAV2‑based therapeutics for treating aggressive triple‑negative breast cancer types.
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Affiliation(s)
- Chao Gao
- The Center for Clinical Reproductive Medicine, Jiangsu Hospital, Nanjing, Jiangsu 210029, P.R. China
| | - Ru-Song Zhang
- The Pathology Department, Nanjing General Hospital of Nanjing Military Command, Nanjing, Jiangsu 210002, P.R. China
| | - Nan Zheng
- State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Chen Wang
- State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
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Aquino-Jarquin G. Emerging Role of CRISPR/Cas9 Technology for MicroRNAs Editing in Cancer Research. Cancer Res 2017; 77:6812-6817. [PMID: 29208606 DOI: 10.1158/0008-5472.can-17-2142] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/05/2017] [Accepted: 09/21/2017] [Indexed: 11/16/2022]
Abstract
MicroRNAs (miRNA) are small, noncoding RNA molecules with a master role in the regulation of important tasks in different critical processes of cancer pathogenesis. Because there are different miRNAs implicated in all the stages of cancer, for example, functioning as oncogenes, this makes these small molecules suitable targets for cancer diagnosis and therapy. RNA-mediated interference has been one major approach for sequence-specific regulation of gene expression in eukaryotic organisms. Recently, the CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 system, first identified in bacteria and archaea as an adaptive immune response to invading genetic material, has been explored as a sequence-specific molecular tool for editing genomic sequences for basic research in life sciences and for therapeutic purposes. There is growing evidence that small noncoding RNAs, including miRNAs, can be targeted by the CRISPR/Cas9 system despite their lacking an open reading frame to evaluate functional loss. Thus, CRISPR/Cas9 technology represents a novel gene-editing strategy with compelling robustness, specificity, and stability for the modification of miRNA expression. Here, I summarize key features of current knowledge of genomic editing by CRISPR/Cas9 technology as a feasible strategy for globally interrogating miRNA gene function and miRNA-based therapeutic intervention. Alternative emerging strategies for nonviral delivery of CRISPR/Cas9 core components into human cells in a clinical context are also analyzed critically. Cancer Res; 77(24); 6812-7. ©2017 AACR.
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Affiliation(s)
- Guillermo Aquino-Jarquin
- Laboratorio de Investigación en Genómica, Genética y Bioinformática, Torre de Hemato-Oncología, 4to. Piso, Sección II, Hospital Infantil de México, Federico Gómez, Mexico.
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Wang H, An X, Yu H, Zhang S, Tang B, Zhang X, Li Z. MiR-29b/TET1/ZEB2 signaling axis regulates metastatic properties and epithelial-mesenchymal transition in breast cancer cells. Oncotarget 2017; 8:102119-102133. [PMID: 29254230 PMCID: PMC5731940 DOI: 10.18632/oncotarget.22183] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 08/27/2017] [Indexed: 12/21/2022] Open
Abstract
MiR-29b has been reported to be both a suppressor and a promoter in breast cancer (BC) cells proliferation and metastasis. Significant efforts have been made to explain the seemingly contradictory effects of miR-29b on BC, but no answer has yet been clearly verified. In this study, we overexpressed and knocked down miR-29b in BC cell lines, modulated expression of its downstream target gene TET1 and downregulated a downstream target gene of TET1, ZEB2, to explore the regulatory mechanism of miR-29b in BC cell proliferation, migration and epithelial-mesenchymal transition (EMT). Our results showed lower expression of miR-29b in BC samples and cell lines. Functional assays showed that miR-29b overexpression resulted in a higher cell proliferation, greater colony formation, higher migration rate and EMT. A dual luciferase assay identified TET1 as a direct target of miR-29b. As the promoting effects of miR-29b in the proliferation and metastasis of MDA-MB-231 and MCF-7, knockdown of TET1 also led to increased proliferation, colony formation, invasion and EMT. Further, we found that TET1 bound to the promoter of ZEB2, and siTET1 enhanced ZEB2 expression. Disruption of ZEB2 expression inhibited BC cells proliferation, colony formation and invasion. Our results establish the miR-29b/TET1/ZEB2 pathway in BC cell proliferation, migration and provide a theoretical basis for further research on the molecular mechanisms and new clinical treatments for BC.
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Affiliation(s)
- Hua Wang
- The First Bethune Hospital, Jilin University, Changchun, Jilin 130021, China
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Xinglan An
- The First Bethune Hospital, Jilin University, Changchun, Jilin 130021, China
| | - Hao Yu
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Sheng Zhang
- The First Bethune Hospital, Jilin University, Changchun, Jilin 130021, China
| | - Bo Tang
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Xueming Zhang
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Ziyi Li
- The First Bethune Hospital, Jilin University, Changchun, Jilin 130021, China
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Abstract
Anaplastic Large Cell Lymphoma (ALCL) is a clinical and biological heterogeneous disease including systemic ALK positive and ALK negative entities. Whereas ALK positive ALCLs are molecularly characterized and readily diagnosed, specific immunophenotypic or genetic features to define ALK negative ALCL are missing, and their distinction from other T-cell non-Hodgkin lymphomas (T-NHLs) can be controversial. In recent years, great advances have been made in dissecting the heterogeneity of ALK negative ALCLs and in providing new diagnostic and treatment options for these patients. A new revision of the World Health Organization (WHO) classification promoted ALK negative ALCL to a definite entity that includes cytogenetic subsets with prognostic implications. However, a further understanding of the genetic landscape of ALK negative ALCL is required to dictate more effective therapeutic strategies specifically tailored for each subgroup of patients.
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Schultz DJ, Muluhngwi P, Alizadeh-Rad N, Green MA, Rouchka EC, Waigel SJ, Klinge CM. Genome-wide miRNA response to anacardic acid in breast cancer cells. PLoS One 2017; 12:e0184471. [PMID: 28886127 PMCID: PMC5590942 DOI: 10.1371/journal.pone.0184471] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 08/24/2017] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs are biomarkers and potential therapeutic targets for breast cancer. Anacardic acid (AnAc) is a dietary phenolic lipid that inhibits both MCF-7 estrogen receptor α (ERα) positive and MDA-MB-231 triple negative breast cancer (TNBC) cell proliferation with IC50s of 13.5 and 35 μM, respectively. To identify potential mediators of AnAc action in breast cancer, we profiled the genome-wide microRNA transcriptome (microRNAome) in these two cell lines altered by the AnAc 24:1n5 congener. Whole genome expression profiling (RNA-seq) and subsequent network analysis in MetaCore Gene Ontology (GO) algorithm was used to characterize the biological pathways altered by AnAc. In MCF-7 cells, 69 AnAc-responsive miRNAs were identified, e.g., increased let-7a and reduced miR-584. Fewer, i.e., 37 AnAc-responsive miRNAs were identified in MDA-MB-231 cells, e.g., decreased miR-23b and increased miR-1257. Only two miRNAs were increased by AnAc in both cell lines: miR-612 and miR-20b; however, opposite miRNA arm preference was noted: miR-20b-3p and miR-20b-5p were upregulated in MCF-7 and MDA-MB-231, respectively. miR-20b-5p target EFNB2 transcript levels were reduced by AnAc in MDA-MB-231 cells. AnAc reduced miR-378g that targets VIM (vimentin) and VIM mRNA transcript expression was increased in AnAc-treated MCF-7 cells, suggesting a reciprocal relationship. The top three enriched GO terms for AnAc-treated MCF-7 cells were B cell receptor signaling pathway and ribosomal large subunit biogenesis and S-adenosylmethionine metabolic process for AnAc-treated MDA-MB-231 cells. The pathways modulated by these AnAc-regulated miRNAs suggest that key nodal molecules, e.g., Cyclin D1, MYC, c-FOS, PPARγ, and SIN3, are targets of AnAc activity.
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Affiliation(s)
- David J. Schultz
- Department of Biology, University of Louisville, Louisville, Kentucky, United States of America
| | - Penn Muluhngwi
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Negin Alizadeh-Rad
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Madelyn A. Green
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Eric C. Rouchka
- Bioinformatics and Biomedical Computing Laboratory, Department of Computer Engineering and Computer Science, Louisville, Kentucky, United States of America
| | - Sabine J. Waigel
- Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Carolyn M. Klinge
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
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Li Y, Cai B, Shen L, Dong Y, Lu Q, Sun S, Liu S, Ma S, Ma PX, Chen J. MiRNA-29b suppresses tumor growth through simultaneously inhibiting angiogenesis and tumorigenesis by targeting Akt3. Cancer Lett 2017; 397:111-119. [PMID: 28365400 DOI: 10.1016/j.canlet.2017.03.032] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 03/14/2017] [Accepted: 03/17/2017] [Indexed: 12/31/2022]
Abstract
The traditional anti-angiogenic cancer therapy could trigger hypoxia induced factor (HIF) response, leading to "reactive resistance" to chemotherapy. Simultaneously inhibiting both angiogenesis and tumorigenesis would be ideal to overcome this limitation. MicroRNAs (miRNAs) are increasingly explored as new agents for cancer therapy. In the present study, we identified a microRNA (miR-29b) with the ability of simultaneously inhibiting angiogenesis and tumorigenesis. Ectopic expression of miR-29b inhibits HUVECs formed three-dimensional capillary-like tubular structures, tumor cell proliferation, migration and tumor formation. Systemic administration of miR-29b potently suppressed tumor vascularization and cancer cell activity in vivo, resulting in dramatic suppression of tumor growth without toxicity. Moreover, we demonstrated the role of miR-29b in anti-angiogenesis and anti-tumorigenesis is through targeting Akt3 and inducing VEGF and C-myc arrest in breast cancer cells. These findings indicate that this single miRNA could be used as an efficient anti-cancer therapeutic agent to address a critical challenge in cancer therapy.
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Affiliation(s)
- Yan Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Bolei Cai
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Liangliang Shen
- The State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Yan Dong
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Qun Lu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Endodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Shukai Sun
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Endodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Shiyu Liu
- State Key Laboratory of Military Stomatology, Center for Tissue Engineering, School of Stomatology, The Forth Military Medical University, China
| | - Shufang Ma
- Jia-Yi Dentistry and Cosmetic Surgery Clinic, Xi'an, 710032, China
| | - Peter X Ma
- Department of Biologic and Materials Science, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Jihua Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China.
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39
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Stankevicins L, Barat A, Dessen P, Vassetzky Y, de Moura Gallo CV. The microRNA-205-5p is correlated to metastatic potential of 21T series: A breast cancer progression model. PLoS One 2017; 12:e0173756. [PMID: 28346474 PMCID: PMC5367783 DOI: 10.1371/journal.pone.0173756] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 02/27/2017] [Indexed: 12/02/2022] Open
Abstract
MicroRNA is a class of noncoding RNAs able to base pair with complementary messenger RNA sequences, inhibiting their expression. These regulatory molecules play important roles in key cellular processes including cell proliferation, differentiation and response to DNA damage; changes in miRNA expression are a common feature of human cancers. To gain insights into the mechanisms involved in breast cancer progression we conducted a microRNA global expression analysis on a 21T series of cell lines obtained from the same patient during different stages of breast cancer progression. These stages are represented by cell lines derived from normal epithelial (H16N2), atypical ductal hyperplasia (21PT), primary in situ ductal carcinoma (21NT) and pleural effusion of a lung metastasis (21MT-1 and 21MT-2). In a global microRNA expression analysis, miR-205-5p was the only miRNA to display an important downregulation in the metastatic cell lines (21MT-1; 21MT-2) when compared to the non-invasive cells (21PT and 21NT). The lower amounts of miR-205-5p found also correlated with high histological grades biopsies and with higher invasion rates in a Boyden chamber assay. This work pinpoints miR-205-5p as a potential player in breast tumor invasiveness.
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Affiliation(s)
- L. Stankevicins
- Departamento de Genética, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Rio de Janeiro, Brazil
- CNRS UMR 8126 «Signalisation, noyaux et innovations en cancérologie», Université Paris-Sud, Institut de Cancérologie Gustave-Roussy, Villejuif cedex, France
| | - A. Barat
- CNRS UMR 8126 «Signalisation, noyaux et innovations en cancérologie», Université Paris-Sud, Institut de Cancérologie Gustave-Roussy, Villejuif cedex, France
| | - P. Dessen
- Functional Genomics Unit, Institut de Cancérologie Gustave-Roussy, Villejuif, France
| | - Y. Vassetzky
- CNRS UMR 8126 «Signalisation, noyaux et innovations en cancérologie», Université Paris-Sud, Institut de Cancérologie Gustave-Roussy, Villejuif cedex, France
- N.K. Koltzov Institute of Developmental Biology RAS, Moscow, Russia
| | - C. V. de Moura Gallo
- Departamento de Genética, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Rio de Janeiro, Brazil
- * E-mail:
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40
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Muluhngwi P, Richardson K, Napier J, Rouchka EC, Mott JL, Klinge CM. Regulation of miR-29b-1/a transcription and identification of target mRNAs in CHO-K1 cells. Mol Cell Endocrinol 2017; 444:38-47. [PMID: 28137615 PMCID: PMC5316361 DOI: 10.1016/j.mce.2017.01.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 01/26/2017] [Accepted: 01/26/2017] [Indexed: 01/28/2023]
Abstract
miR-29b and miR-29a transcript levels were reported to increase in exponentially growing CHO-K1 cells. Here, we examine the regulation of miR-29b-1/a in CHO-K1 cells. We observed that 4-hydroxytamoxifen (4-OHT) increased pri-miR-29b-1 and pri-miR-29a transcription in CHO-K1 cells by activating endogenous estrogen receptor α (ERα). DICER, an established, bona fide target of miR-29b-1/a, was shown to be regulated by 4-OHT in CHO-K1 cells. We showed that miR-29b-1 and miR-29a serve a repressive role in cell proliferation, migration, invasion, and colony formation in CHO-K1 cells. To identify other targets of miR-29b-1 and miR-29a, RNA sequencing was performed by transfecting cells with anti-miR-29a, which inhibits both miR-29a and miR-29b-1, pre-miR-29b-1, and/or pre-miR-29a. In silico network analysis in MetaCore™ identified common and unique putative gene targets of miR-29b-1 and miR-29a. Pathway analysis of identified putative miR-29 targets were related to cell adhesion, cytoskeletal remodeling, and development. Further inquiry revealed regulation of pathways mediating responses to growth factor stimulus and cell cycle regulation.
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Affiliation(s)
- Penn Muluhngwi
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Kirsten Richardson
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Joshua Napier
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Eric C Rouchka
- Bioinformatics and Biomedical Computing Laboratory, Department of Computer Engineering and Computer Science, University of Louisville, Louisville, KY 40292, USA
| | - Justin L Mott
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Carolyn M Klinge
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, KY 40292, USA; Bioinformatics and Biomedical Computing Laboratory, Department of Computer Engineering and Computer Science, University of Louisville, Louisville, KY 40292, USA; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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41
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Abstract
MicroRNAs (miRNAs) are small noncoding RNAs that regulate gene expression mainly at the posttranscriptional level. Similar to protein-coding genes, their expression is also controlled by genetic and epigenetic mechanisms. Disruption of these control processes leads to abnormal expression of miRNAs in cancer. In this chapter, we discuss the supportive links between miRNAs and epigenetics in the context of carcinogenesis. miRNAs can be epigenetically regulated by DNA methylation and/or specific histone modifications. However, they can themselves (epi-miRNAs) repress key enzymes that drive epigenetic remodeling and also bind to complementary sequences in gene promoters, recruiting specific protein complexes that modulate chromatin structure and gene expression. All these issues affect the transcriptional landscape of cells. Most important, in the cancer clinical scenario, knowledge about miRNAs epigenetic dysregulation can not only be beneficial as a prognostic biomarker, but can also help in the design of new therapeutic approaches.
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Affiliation(s)
- Catia Moutinho
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain
| | - Manel Esteller
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain; School of Medicine and Health Sciences, University of Barcelona (UB), Catalonia, Spain.
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42
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Muluhngwi P, Krishna A, Vittitow SL, Napier JT, Richardson KM, Ellis M, Mott JL, Klinge CM. Tamoxifen differentially regulates miR-29b-1 and miR-29a expression depending on endocrine-sensitivity in breast cancer cells. Cancer Lett 2016; 388:230-238. [PMID: 27986463 DOI: 10.1016/j.canlet.2016.12.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/05/2016] [Accepted: 12/06/2016] [Indexed: 12/21/2022]
Abstract
Endocrine-resistance develops in ∼40% of breast cancer patients after tamoxifen (TAM) therapy. Although microRNAs are dysregulated in breast cancer, their contribution to endocrine-resistance is not yet understood. Previous microarray analysis identified miR-29a and miR-29b-1 as repressed by TAM in MCF-7 endocrine-sensitive breast cancer cells but stimulated by TAM in LY2 endocrine-resistant breast cancer cells. Here we examined the mechanism for the differential regulation of these miRs by TAM in MCF-7 versus TAM-resistant LY2 and LCC9 breast cancer cells and the functional role of these microRNAs in these cells. Knockdown studies revealed that ERα is responsible for TAM regulation of miR-29b-1/a transcription. We also demonstrated that transient overexpression of miR-29b-1/a decreased MCF-7, LCC9, and LY2 proliferation and inhibited LY2 cell migration and colony formation but did not sensitize LCC9 or LY2 cells to TAM. Furthermore, TAM reduced DICER1 mRNA and protein in LY2 cells, a known target of miR-29. Supporting this observation, anti-miR-29b-1 or anti-miR-29a inhibited the suppression of DICER by 4-OHT. These results suggest miR-29b-1/a has tumor suppressor activity in TAM-resistant cells and does not appear to play a role in mediating TAM resistance.
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Affiliation(s)
- Penn Muluhngwi
- Department of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Abirami Krishna
- Department of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Stephany L Vittitow
- Department of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Joshua T Napier
- Department of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Kirsten M Richardson
- Department of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Mackenzie Ellis
- Department of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Justin L Mott
- Department of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Carolyn M Klinge
- Department of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
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43
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Li M, Li H, Liu X, Xu D, Wang F. MicroRNA-29b regulates TGF-β1-mediated epithelial–mesenchymal transition of retinal pigment epithelial cells by targeting AKT2. Exp Cell Res 2016; 345:115-24. [DOI: 10.1016/j.yexcr.2014.09.026] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 09/17/2014] [Accepted: 09/18/2014] [Indexed: 11/29/2022]
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44
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Zhu K, Liu L, Zhang J, Wang Y, Liang H, Fan G, Jiang Z, Zhang CY, Chen X, Zhou G. MiR-29b suppresses the proliferation and migration of osteosarcoma cells by targeting CDK6. Protein Cell 2016; 7:434-44. [PMID: 27230400 PMCID: PMC4887333 DOI: 10.1007/s13238-016-0277-2] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 04/26/2016] [Indexed: 12/31/2022] Open
Abstract
Osteosarcoma is the most common primary sarcoma of bone, and it is a leading cause of cancer death among adolescents and young adults. However, the molecular mechanism underlying osteosarcoma carcinogenesis remains poorly understood. Recently, cyclin-dependent kinase 6 (CDK6) was identified as an important oncogene. We found that CDK6 protein level, rather than CDK6 mRNA level, is much higher in osteosarcoma tissues than in normal adjacent tissues, which indicates a post-transcriptional mechanism involved in CDK6 regulation in osteosarcoma. MiRNAs are small non-coding RNAs that repress gene expression at the post-transcriptional level and have widely been shown to play important roles in many human cancers. In this study, we investigated the role of miR-29b as a novel regulator of CDK6 using bioinformatics methods. We demonstrated that CDK6 can be downregulated by miR-29b via binding to the 3'-UTR region in osteosarcoma cells. Furthermore, we identified an inverse correlation between miR-29b and CDK6 protein levels in osteosarcoma tissues. Finally, we examined the function of miR-29b-driven repression of CDK6 expression in osteosarcoma cells. The results revealed that miR-29b acts as a tumor suppressor of osteosarcoma by targeting CDK6 in the proliferation and migration processes. Taken together, our results highlight an important role for miR-29b in the regulation of CDK6 in osteosarcoma and may open new avenues for future osteosarcoma therapies.
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Affiliation(s)
- Kegan Zhu
- Department of Orthopedics, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, 210002, China
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210046, China
| | - Lei Liu
- Department of Orthopedics, The Affiliated Yixing Hospital of Jiangsu University, Yixing, 214200, China
| | - Junliang Zhang
- Department of Orthopedics, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, 210002, China
| | - Yanbo Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210046, China
| | - Hongwei Liang
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210046, China
| | - Gentao Fan
- Department of Orthopedics, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, 210002, China
| | - Zhenhuan Jiang
- Department of Orthopedics, The Affiliated Yixing Hospital of Jiangsu University, Yixing, 214200, China
| | - Chen-Yu Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210046, China.
| | - Xi Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210046, China.
| | - Guangxin Zhou
- Department of Orthopedics, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, 210002, China.
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PATZ1 is a target of miR-29b that is induced by Ha-Ras oncogene in rat thyroid cells. Sci Rep 2016; 6:25268. [PMID: 27125250 PMCID: PMC4850481 DOI: 10.1038/srep25268] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 04/14/2016] [Indexed: 01/07/2023] Open
Abstract
The regulatory transcriptional factor PATZ1 is constantly downregulated in human thyroid cancer where it acts as a tumour suppressor by targeting p53-dependent genes involved in Epithelial-Mesenchymal Transition and cell migration. The aim of the present work was to elucidate the upstream signalling mechanisms regulating PATZ1 expression in thyroid cancer cells. The bioinformatics search for microRNAs able to potentially target PATZ1 led to the identification of several miRNAs. Among them we focused on the miR-29b since it was found upregulated in rat thyroid differentiated cells transformed by the Ha-Ras oncogene towards a high proliferating and high migratory phenotype resembling that of anaplastic carcinomas. Functional assays confirmed PATZ1 as a target of miR-29b, and, consistently, an inverse correlation between miR-29b and PATZ1 protein levels was found upon induction of Ha-Ras oncogene expression in these cells. Interestingly, restoration of PATZ1 expression in rat thyroid cells stably expressing the Ha-Ras oncogene decreased cell proliferation and migration, indicating a key role of PATZ1 in Ras-driven thyroid transformation. Together, these results suggest a novel mechanism regulating PATZ1 expression based on the upregulation of miR-29b expression induced by Ras oncogene.
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miR-29s: a family of epi-miRNAs with therapeutic implications in hematologic malignancies. Oncotarget 2016; 6:12837-61. [PMID: 25968566 PMCID: PMC4536984 DOI: 10.18632/oncotarget.3805] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 03/18/2015] [Indexed: 02/06/2023] Open
Abstract
A wealth of studies has highlighted the biological complexity of hematologic malignancies and the role of dysregulated signal transduction pathways. Along with the crucial role of genetic abnormalities, epigenetic aberrations are nowadays emerging as relevant players in cancer development, and significant research efforts are currently focusing on mechanisms by which histone post-translational modifications, DNA methylation and noncoding RNAs contribute to the pathobiology of cancer. As a consequence, these studies have provided the rationale for the development of epigenetic drugs, such as histone deacetylase inhibitors and demethylating compounds, some of which are currently in advanced phase of pre-clinical investigation or in clinical trials. In addition, a more recent body of evidence indicates that microRNAs (miRNAs) might target effectors of the epigenetic machinery, which are aberrantly expressed or active in cancers, thus reverting those epigenetic abnormalities driving tumor initiation and progression. This review will focus on the broad epigenetic activity triggered by members of the miR-29 family, which underlines the potential of miR-29s as candidate epi-therapeutics for the treatment of hematologic malignancies.
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MicroRNAs in Hyperglycemia Induced Endothelial Cell Dysfunction. Int J Mol Sci 2016; 17:518. [PMID: 27070575 PMCID: PMC4848974 DOI: 10.3390/ijms17040518] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/17/2016] [Accepted: 03/22/2016] [Indexed: 01/15/2023] Open
Abstract
Hyperglycemia is closely associated with prediabetes and Type 2 Diabetes Mellitus. Hyperglycemia increases the risk of vascular complications such as diabetic retinopathy, diabetic nephropathy, peripheral vascular disease and cerebro/cardiovascular diseases. Under hyperglycemic conditions, the endothelial cells become dysfunctional. In this study, we investigated the miRNA expression changes in human umbilical vein endothelial cells exposed to different glucose concentrations (5, 10, 25 and 40 mM glucose) and at various time intervals (6, 12, 24 and 48 h). miRNA microarray analyses showed that there is a correlation between hyperglycemia induced endothelial dysfunction and miRNA expression. In silico pathways analyses on the altered miRNA expression showed that the majority of the affected biological pathways appeared to be associated to endothelial cell dysfunction and apoptosis. We found the expression of ten miRNAs (miR-26a-5p, -26b-5p, 29b-3p, -29c-3p, -125b-1-3p, -130b-3p, -140-5p, -192-5p, -221-3p and -320a) to increase gradually with increasing concentration of glucose. These miRNAs were also found to be involved in endothelial dysfunction. At least seven of them, miR-29b-3p, -29c-3p, -125b-1-3p, -130b-3p, -221-3p, -320a and -192-5p, can be correlated to endothelial cell apoptosis.
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Bretschneider M, Busch B, Mueller D, Nolze A, Schreier B, Gekle M, Grossmann C. Activated mineralocorticoid receptor regulates micro-RNA-29b in vascular smooth muscle cells. FASEB J 2016; 30:1610-22. [PMID: 26728178 DOI: 10.1096/fj.15-271254] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 12/11/2015] [Indexed: 12/17/2022]
Abstract
Inappropriately activated mineralocorticoid receptor (MR) is a risk factor for vascular remodeling with unclear molecular mechanism. Recent findings suggest that post-transcriptional regulation by micro-RNAs (miRs) may be involved. Our aim was to search for MR-dependent miRs in vascular smooth muscle cells (VSMCs) and to explore the underlying molecular mechanism and the pathologic relevance. We detected that aldosteroneviathe MR reduces miR-29bin vivoin murine aorta and in human primary and cultured VSMCs (ED50= 0.07 nM) but not in endothelial cells [quantitative PCR (qPCR), luciferase assays]. This effect was mediated by an increased decay of miR-29b in the cytoplasm with unchanged miR-29 family member or primary-miR levels. Decreased miR-29b led to an increase in extracellular matrix measured by ELISA and qPCR and enhanced VSMC migration in single cell-tracking experiments. Additionally, cell proliferation and the apoptosis/necrosis ratio (caspase/lactate dehydrogenase assay) was modulated by miR-29b. Enhanced VSMC migration by aldosterone required miR-29b regulation. Control experiments were performed with scrambled RNA and empty plasmids, by comparing aldosterone-stimulated with vehicle-incubated cells. Overall, our findings provide novel insights into the molecular mechanism of aldosterone-mediated vascular pathogenesis by identifying miR-29b as a pathophysiologic relevant target of activated MR in VSMCs and by highlighting the importance of miR processing for miR regulation.-Bretschneider, M., Busch, B., Mueller, D., Nolze, A., Schreier, B., Gekle, M., Grossmann, C. Activated mineralocorticoid receptor regulates micro-RNA-29b in vascular smooth muscle cells.
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Affiliation(s)
- Maria Bretschneider
- *Julius Bernstein Institute of Physiology and Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Bianca Busch
- *Julius Bernstein Institute of Physiology and Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Daniel Mueller
- *Julius Bernstein Institute of Physiology and Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Alexander Nolze
- *Julius Bernstein Institute of Physiology and Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Barbara Schreier
- *Julius Bernstein Institute of Physiology and Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Michael Gekle
- *Julius Bernstein Institute of Physiology and Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Claudia Grossmann
- *Julius Bernstein Institute of Physiology and Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Halle, Germany
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Takayama KI, Inoue S. The emerging role of noncoding RNA in prostate cancer progression and its implication on diagnosis and treatment. Brief Funct Genomics 2015; 15:257-65. [DOI: 10.1093/bfgp/elv057] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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Song Q, Song J, Wang Q, Ma Y, Sun N, Ma J, Chen Q, Xia G, Huo Y, Yang L, Li B. miR-548d-3p/TP53BP2 axis regulates the proliferation and apoptosis of breast cancer cells. Cancer Med 2015; 5:315-24. [PMID: 26663100 PMCID: PMC4735782 DOI: 10.1002/cam4.567] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Revised: 09/16/2015] [Accepted: 09/23/2015] [Indexed: 02/06/2023] Open
Abstract
Fast growth and hardly any apoptosis are important characteristics of breast cancer, which assure the spread via invasion and metastasis of breast cancer cells. Inhibition of fast proliferation and induction of apoptosis are critical way to cure this cancer. microRNAs (miRNAs) had been increasingly reported to be the critical regulator of tumorigenesis. In our study, we found that increasing copy number of miR-548d-2-3p is critically involved poor prognosis. We overexpressed miR-548d-3p in MDA-MB-231cells and found that the proliferation was promoted significantly, whereas the inhibition of miR-548d-3p repressed the proliferation of MDA-MB-231 cells and also induced the increase in apoptosis. Additionally, we found that miR-548d-3p downregulated the expression of TP53BP2 by directly targeting the 3'UTR. We also found that knockdown of TP53BP2 significantly resorted the proliferation and apoptosis regulated by miR-548d-3p inhibitor. Our study showed that miR-548d-3p/TP53BP2 pathway is critically involved in the proliferation and apoptosis of breast cancer cells and may be new therapeutic target of breast cancer cells.
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Affiliation(s)
- Qiong Song
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
| | - Jiangqiang Song
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
| | - Qimin Wang
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
| | - Yanling Ma
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
| | - Nai Sun
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
| | - Jieyu Ma
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
| | - Qiu Chen
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
| | - Guishan Xia
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
| | - Yanping Huo
- Department of Galactophore, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
| | - Longqiu Yang
- Department of Anesthesiology, Huangshi Central Hospita, Affiliated Hospital of Hubei Polytechnic University, Huangshi, 435000, China
| | - Baolin Li
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, 195 Tongbai Road, Zhengzhou, Henan, 450007, China
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