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Yahya SMM, Nabih HK, Elsayed GH, Mohamed SIA, Elfiky AM, Salem SM. Restoring microRNA-34a overcomes acquired drug resistance and disease progression in human breast cancer cell lines via suppressing the ABCC1 gene. Breast Cancer Res Treat 2024; 204:133-149. [PMID: 38057687 PMCID: PMC10806220 DOI: 10.1007/s10549-023-07170-0] [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: 08/24/2023] [Accepted: 11/02/2023] [Indexed: 12/08/2023]
Abstract
PURPOSE Breast cancer is one of the leading types of cancer diagnosed in women. Despite the improvements in chemotherapeutic cure strategies, drug resistance is still an obstacle leading to disease aggressiveness. The small non-coding RNA molecules, miRNAs, have been implicated recently to be involved as regulators of gene expression through the silencing of mRNA targets that contributed to several cellular processes related to cancer metastasis. Hence, the present study aimed to investigate the beneficial role and mechanism of miRNA-34a-based gene therapy as a novel approach for conquering drug resistance mediated by ATP-binding cassette (ABC) transporters in breast cancer cells, besides exploring the associated invasive behaviors. MATERIAL AND METHODS Bioinformatics tools were used to predict miRNA ABC transporter targets by tracking the ABC transporter pathway. After the establishment of drug-resistant breast cancer MCF-7 and MDA-MB-231 sublines, cells were transfected with the mimic or inhibitor of miRNA-34a-5p. The quantitative expression of genes involved in drug resistance was performed by QRT-PCR, and the exact ABC transporter target specification interaction was confirmed by dual-luciferase reporter assay. Furthermore, flow cytometric analysis was utilized to determine the ability of miRNA-34a-treated cells against doxorubicin uptake and accumulation in cell cycle phases. The spreading capability was examined by colony formation, migration, and wound healing assays. The apoptotic activity was estimated as well. RESULTS Our findings firstly discovered the mechanism of miRNA-34a-5p restoration as an anti-drug-resistant molecule that highly significantly attenuates the expression of ABCC1 via the direct targeting of its 3'- untranslated regions in resistant breast cancer cell lines, with a significant increase of doxorubicin influx by MDA-MB-231/Dox-resistant cells. Additionally, the current data validated a significant reduction of metastatic potentials upon miRNA-34a-5p upregulation in both types of breast cancer-resistant cells. CONCLUSION The ectopic expression of miRNA-34a ameliorates the acquired drug resistance and the migration properties that may eventually lead to improved clinical strategies and outcomes for breast cancer patients. Additionally, miRNA-34a could be monitored as a diagnostic/prognostic biomarker for resistant conditions.
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Affiliation(s)
- Shaymaa M M Yahya
- Hormones Department, Medicine and Clinical Studies Research Institute, and Stem Cell Lab, Centre of Excellence for Advanced Sciences, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Heba K Nabih
- Medical Biochemistry Department, Medicine and Clinical Studies Research Institute, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt.
| | - Ghada H Elsayed
- Hormones Department, Medicine and Clinical Studies Research Institute, and Stem Cell Lab, Centre of Excellence for Advanced Sciences, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | | | - Asmaa M Elfiky
- Environmental and Occupational Medicine Department, Environmental and Climate Change Research Institute, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Sohair M Salem
- Molecular Genetics and Enzymology Department, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt
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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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The Effect of miR-520b on Macrophage Polarization and T Cell Immunity by Targeting PTEN in Breast Cancer. JOURNAL OF ONCOLOGY 2021; 2021:5170496. [PMID: 34659411 PMCID: PMC8514911 DOI: 10.1155/2021/5170496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/31/2021] [Accepted: 09/09/2021] [Indexed: 02/08/2023]
Abstract
Background Breast cancer is the most common cancer in women. miR-520b had binding sites with PTEN through the bioinformatics prediction. But few studies have been conducted on miR-520b and PTEN in breast cancer. We aimed to explore the effect of miR-520b and PTEN on breast cancer and the mechanisms involved. Methods Clinical samples of breast cancer were collected. Bioinformatics analysis was performed to screen the differentially expressed miRNAs. CD4 T cells and CD8 T cells were cocultured with MCF-7 cells in the Transwell system. Moreover, MCF-7 cells and M0 macrophage cocultured cell lines were constructed. qRT-PCR, IF, western blot, flow cytometry, and ELISA were performed to detect related factors expression. Starbase and dual-luciferase reporter assay verified the binding of miR-520b to PTEN. The tumor formation model was established to study miR-520b and PTEN effects in vivo. Results The differentially expressed miR-520b was screened via miRNAs sequencing and cell verification. miR-520b expression was high, PTEN was low in tumor tissues, T cells and NK cells were inhibited, and macrophages were transformed into M2 type, promoting immune escape. In addition, miR-520b bound to PTEN. Then, splenic CD4 T cells and CD8 T cells were successfully sorted. During CD4 T cell differentiation to Th1 and Treg, Th1 was inhibited, and Treg was activated. We found the polarization of macrophages was related to breast cancer. The proportion of CD206 cells increased and CD68 cells decreased in the miR-520b mimics group compared with the mimic NC group. Compared with the inhibitor NC group, the proportion of CD206 cells decreased, and CD68 cells increased in the miR-520b inhibitor group. In vivo experiments showed that miR-520b inhibitor inhibited tumor growth and promoted PTEN expression. The proportion of CD3, CD4, CD8, NK1.1, CD4+IFNγ, and CD68 cells increased, while FOXP3 and CD206 cells decreased in the miR-520b inhibitor group compared with the inhibitor NC group. However, the proportion of CD3, CD4, CD8, NK1.1, CD4+IFNγ, and CD68 cells decreased, while FOXP3 and CD206 cells increased after the addition of siPTEN. Conclusions miR-520b inhibited PTEN and aggravated breast tumors. miR-520b inhibitor enhanced CD4 and CD8 cell populations in the tumor immune microenvironment and inhibited tumor growth.
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Huang SL, Huang ZC, Zhang CJ, Xie J, Lei SS, Wu YQ, Fan PZ. LncRNA SNHG5 promotes the glycolysis and proliferation of breast cancer cell through regulating BACH1 via targeting miR-299. Breast Cancer 2021; 29:65-76. [PMID: 34351577 PMCID: PMC8732815 DOI: 10.1007/s12282-021-01281-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 08/01/2021] [Indexed: 12/24/2022]
Abstract
Background Breast cancer (BC) is one of the most common malignant tumors in women. Accumulating studies have been reported that long non-coding RNA (lncRNA) SNHG5 is highly expressed in BC. However, the specific molecular mechanism of SNHG5 in BC is unclear. Methods Gene and protein expressions in BC cell were detected by qRT-PCR and western blotting. The proliferation and cell cycle were measured using colony formation assay and flow cytometry analysis, separately. The glucose consumption and lactate production were determined by using the glucose assay kit and lactate assay kit. A dual-luciferase reporter assay was performed to measure the interaction between miR-299 and SNHG5 or BACH1. Results SNHG5 and BACH1 expressions were increased in BC cell while miR-299 level was decreased. SNHG5 increased BACH1 expression by directly targeting miR-299. SNHG5 silencing or miR-299 overexpression suppressed the proliferation of BC cell, arrested the cell cycle in the G1 cell phase, and decreased the glucose consumption and lactate production of BC cell. However, inhibition of miR-299 or overexpression of BACH1 could reverse the inhibitory effects of sh-SNHG5 on cell proliferation and glycolysis in BC. Conclusion SNHG5 promoted the BC cell growth and glycolysis through up-regulating BACH1 expression via targeting miR-299. These findings may improve the diagnostic and therapeutic approaches to BC.
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Affiliation(s)
- Shu-Lin Huang
- Department of Breast and Thyroid Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang West Road, Changsha, 410005, Hunan Province, People's Republic of China
| | - Zhong-Cheng Huang
- Department of General Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan Province, People's Republic of China
| | - Chao-Jie Zhang
- Department of Breast and Thyroid Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang West Road, Changsha, 410005, Hunan Province, People's Republic of China
| | - Jing Xie
- Department of Breast and Thyroid Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang West Road, Changsha, 410005, Hunan Province, People's Republic of China
| | - Shan-Shan Lei
- Department of Breast and Thyroid Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang West Road, Changsha, 410005, Hunan Province, People's Republic of China
| | - Ya-Qin Wu
- Department of Breast and Thyroid Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang West Road, Changsha, 410005, Hunan Province, People's Republic of China
| | - Pei-Zhi Fan
- Department of Breast and Thyroid Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang West Road, Changsha, 410005, Hunan Province, People's Republic of China.
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Luo X, Wang H. LINC00514 upregulates CCDC71L to promote cell proliferation, migration and invasion in triple-negative breast cancer by sponging miR-6504-5p and miR-3139. Cancer Cell Int 2021; 21:180. [PMID: 33757509 PMCID: PMC7986463 DOI: 10.1186/s12935-021-01875-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/09/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) have recently identified as essential gene modulators in numerous cancers. Previous studies have confirmed the oncogenic role of long intergenic nonprotein-coding RNA 00514 (LINC00514) in some cancers. Nevertheless, its biological function and mechanism remain unclear in triple-negative breast cancer (TNBC). METHODS Herein, we detected LINC00514 expression level in TNBC tissues and cells using RT-qPCR. The function of LINC00514 in TNBC cellular activities was assessed by colony formation, EdU, wound healing, transwell assays and flow cytometry analysis. RESULTS The binding between miR-6504-5p/miR-3139 and LINC00514/CCDC71L was validated by luciferase reporter assay. The results indicated that LINC00514 expression was upregulated in TNBC tissues and cells. Furthermore, it was manifested that silenced LINC00514 restrained cell proliferative, migratory and invasive abilities and promoted cell apoptosis. In mechanism, LINC00514 was revealed to sequester miR-6504-5p and miR-3139 in TNBC cells. Furthermore, the low level of miR-6504-5p and miR-3139 was identified in TNBC tissues and cells. Overexpression of miR-6504-5p or miR-3139 inhibited cell growth and migration in TNBC. CCDC71L was recognized as a common downstream gene of miR-6504-5p and miR-3139. Rescue assay verified that overexpressed CCDC71L countervailed the anti-tumor influence of LINC00514 knockdown on TNBC cell proliferation, migration, invasion and apoptosis. CONCLUSIONS LINC00514 promote cell proliferation, migration and invasion in triple-negative breast cancer by targeting the miR-6504-5p/miR-3139/CCDC71L axis in TNBC.
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Affiliation(s)
- Xiao Luo
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Hui Wang
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China.
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Yahya SMM, Abd-Elhalim MM, Abdelhamid AO, Eskander EF, Elsayed GH. Could miR-34a Inhibition be Used as a Tool to Overcome Drug Resistance in MCF-7 Cells Treated with Synthesized Steroidal Heterocycles? Asian Pac J Cancer Prev 2021; 22:819-826. [PMID: 33773546 PMCID: PMC8286668 DOI: 10.31557/apjcp.2021.22.3.819] [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: 10/13/2020] [Indexed: 11/25/2022] Open
Abstract
Background: Progesterone derivatives have explored an improved effect on human cancer cells through combination of the explored heterocycles with progesterone moiety.miRNAs have an important role in moderating cancer cell survival, proliferation and drug resistance. The current study tested the hypothesis “whether miR-34a inhibitor has a negative impact on apoptosis and angiogenesis in MCF-7 cells treated with newly synthesized progesterone derivatives”. Methods: MCF-7 cells were treated with progesterone derivatives individually and in combination with miR-34a inhibitor. miR-34a expression levels were measured in MCF-7 cells treated with progesterone derivatives using QRT-PCR. MCF-7 cells treated with progesterone derivatives individually showed increased miR-34a expression levels. miR-34a deficient cells were treated with the newly synthesized progesterone derivatives, after that, apoptotic and angiogenic gene expression levels were determined using QRT-PCR. The studied genes were as follows: apoptotic (Bcl-2, survivin, CCND1, CDC2, P53 and P21) and angiogenic (VEGF, Hif-1α, MMP-2, Ang-1, Ang-2, and FGF-1). Results: The results showed that miR-34a deficient MCF-7 cells treated with the newly progesterone derivatives still have promising effects on apoptotic and angiogenic genes. Besides, results revealed that miRNA-34a deficient MCF-7 cells exhibited improved effect of tested compounds in some apoptotic and angiogenic genes such as CDC-2, MMP-2. Conclusion: These results revealed that miR-34a inhibitor did not have remarkable negative effect on apoptosis and angiogenesis. On contrary, it showed an improved effect on some genes. And consequently, miR-34a inhibitor could be used safely as a tool to tackle drug resistance in breast cancer cells.
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Affiliation(s)
- Shaymaa M M Yahya
- Department of Hormones, Medical Research Division, National Research Centre, Dokki, Cairo, Egypt
| | - Mervat M Abd-Elhalim
- Department of Hormones, Medical Research Division, National Research Centre, Dokki, Cairo, Egypt
| | - Abdou O Abdelhamid
- Department of Chemistry, Faculty of Science, Cairo University, Cairo, Egypt
| | - Emad F Eskander
- Department of Hormones, Medical Research Division, National Research Centre, Dokki, Cairo, Egypt
| | - Ghada H Elsayed
- Department of Hormones, Medical Research Division, National Research Centre, Dokki, Cairo, Egypt
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Abstract
Despite the decline in death rate from breast cancer and recent advances in targeted therapies and combinations for the treatment of metastatic disease, metastatic breast cancer remains the second leading cause of cancer-associated death in U.S. women. The invasion-metastasis cascade involves a number of steps and multitudes of proteins and signaling molecules. The pathways include invasion, intravasation, circulation, extravasation, infiltration into a distant site to form a metastatic niche, and micrometastasis formation in a new environment. Each of these processes is regulated by changes in gene expression. Noncoding RNAs including microRNAs (miRNAs) are involved in breast cancer tumorigenesis, progression, and metastasis by post-transcriptional regulation of target gene expression. miRNAs can stimulate oncogenesis (oncomiRs), inhibit tumor growth (tumor suppressors or miRsupps), and regulate gene targets in metastasis (metastamiRs). The goal of this review is to summarize some of the key miRNAs that regulate genes and pathways involved in metastatic breast cancer with an emphasis on estrogen receptor α (ERα+) breast cancer. We reviewed the identity, regulation, human breast tumor expression, and reported prognostic significance of miRNAs that have been documented to directly target key genes in pathways, including epithelial-to-mesenchymal transition (EMT) contributing to the metastatic cascade. We critically evaluated the evidence for metastamiRs and their targets and miRNA regulation of metastasis suppressor genes in breast cancer progression and metastasis. It is clear that our understanding of miRNA regulation of targets in metastasis is incomplete.
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Affiliation(s)
- Belinda J Petri
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, 40292, USA
| | - Carolyn M Klinge
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, 40292, USA.
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Taroeno-Hariadi KW, Hardianti MS, Sinorita H, Aryandono T. Obesity, leptin, and deregulation of microRNA in lipid metabolisms: their contribution to breast cancer prognosis. Diabetol Metab Syndr 2021; 13:10. [PMID: 33482868 PMCID: PMC7821690 DOI: 10.1186/s13098-020-00621-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/29/2020] [Indexed: 12/17/2022] Open
Abstract
Obesity and Metabolic Syndrome have been associated with cardiovascular, diabetes and cancer incidence. Obesity is a state of inflammation. There are cross-talks between adipocyte, adipokines, pro-inflammatory cytokines, insulin, leptin, and other growth factors to initiate signals for proliferation, anti-apoptosis, and angiogenesis. Those networks lead to cancer initiation, promotion, progression, and metastasis. Post menopause women with breast cancer commonly have overweight, obesity, and metabolic syndrome, which are previously reported as conditions to be associated with breast cancer prognosis. MicroRNAs (miRNAs), small non-coding RNA that regulate gene expression, are known to play important roles either in metabolic or carcinogenesis process in patients with breast cancer. Some miRNAs expressions are deregulated in persons either with obesity, breast cancer, or breast cancer with co-morbid obesity. This literature review aimed at reviewing recent publications on the role of obesity, leptin, and microRNA deregulation in adverse prognosis of breast cancer. Understanding the influence of deregulated miRNAs and their target genes in patients with breast cancer and obesity will direct more studies to explore the potential prognostic role of obesity in breast cancer from epigenetic points of view.
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Affiliation(s)
- Kartika W Taroeno-Hariadi
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Farmako Street, Sekip Utara, Yogyakarta, 55281, Indonesia.
| | - Mardiah S Hardianti
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Farmako Street, Sekip Utara, Yogyakarta, 55281, Indonesia
| | - Hemi Sinorita
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Teguh Aryandono
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Ahmad M, Shah AA. Predictive role of single nucleotide polymorphism (rs11614913) in the development of breast cancer in Pakistani population. Per Med 2020; 17:213-227. [PMID: 32320336 DOI: 10.2217/pme-2019-0086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Aim: miRNAs play an important role in breast cancer (BC). Variations in miRNAs influence their maturation, expression and consequently regulation of their target genes. Materials & methods: In this study, single nucleotide polymorphism rs11614913 was genotyped in BC patients (n = 300) and 230 controls by employing tetra primer amplification refractory mutation system PCR and Sanger sequencing (Macrogen Korea). Results: A significant difference was observed in the genotypes through co-dominant (χ2.#x00A0;= 42.03; p < 0.0001), additive (odds ratio [OR] = 0.6441 [0.4887-0.8490, 95% confidence interval]; p < 0.0019), dominant (OR = 0.3996 [0.2809-0.5686], p < 0.0001) and recessive (OR = 0.2993 [0.1220-0.7347], p < 0.009) statistical models showed decreased risk association of C allele with BC. Conclusion: Females having CT genotype are at higher risk of BC as compared with those having CC genotype.
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Affiliation(s)
- Mushtaq Ahmad
- Department of Biotechnology, Faculty of Biological Sciences, University of Malakand, Chakdara, Pakistan
| | - Aftab Ali Shah
- Department of Biotechnology, Faculty of Biological Sciences, University of Malakand, Chakdara, Pakistan
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Jiang W, Deng X, Zhu T, Wei Y, Lei Z, Guo M, Yang J. Identification of Cholangiocarcinoma Associated with Hepatolithiasis via the Combination of miRNA and Ultrasound. Cancer Manag Res 2020; 12:1845-1853. [PMID: 32210627 PMCID: PMC7075433 DOI: 10.2147/cmar.s241870] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/02/2020] [Indexed: 12/13/2022] Open
Abstract
Background Identification of cholangiocarcinoma (CCA) associated with hepatolithiasis (HL) is difficult. There is no effective method to discriminate CCA associated with HL (HL-CCA) from HL currently. Objective To explore the value of clinical data, ultrasonic characteristics and miRNA expression level in the identification of HL-CCA. Methods Thirty-one patients with HL-CCA in Huazhong University of Science and Technology Union Shenzhen Hospital were enrolled in the observation group, while 40 patients with HL alone were included in the control group. The clinical data, ultrasonic characteristics, and miRNA expression level of the two groups were recorded and analyzed to explore the potential indicators for the identification of HL-CCA. Results The accuracy of ultrasound in the diagnosis of HL-CCA was low (54.84%). Multivariate logistic regression analysis showed that liver abscess (P=0.021), indistinct border demarcation (P=0.015), non-homogenous echotexture (P=0.019), missed portal vein around lesion (P=0.032), miRNA-21 (P=0.018) and miRNA-221 (P=0.009) were the potential indicators for the identification of HL-CCA. The combined diagnosis based on logistic regression contained liver abscess, border demarcation, echotexture, portal vein around lesion, miRNA-21 and miRNA-221. The results showed that the accuracy of combined diagnosis identifying HL-CCA was the most accurate (AUC=0.911), which was significantly greater than the AUC of miRNA-21 or miRNA-221 individually (P<0.05), with a sensitivity and specificity of 77.42% and 97.50%, respectively. Conclusion Patients with HL-CCA show high incidence of hepatic abscess and elevated miRNA-21 and miRNA-221 expression level. The ultrasonic features are more likely to show indistinct border demarcation, non-homogenous echotexture, and missed portal vein around lesion. The combined diagnosis is more accurate in the identification of HL-CCA.
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Affiliation(s)
- Wei Jiang
- Department of Ultrasound, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, People's Republic of China
| | - Xiaofei Deng
- Department of Ultrasound, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, People's Republic of China
| | - Ting Zhu
- Department of Ultrasound, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, People's Republic of China
| | - Yuya Wei
- Department of Ultrasound, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, People's Republic of China
| | - Zhen Lei
- Department of Ultrasound, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, People's Republic of China
| | - Meimei Guo
- Department of Gastroenterology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, People's Republic of China
| | - Jiong Yang
- Department of Gastroenterology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, People's Republic of China
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Li X, Zou W, Wang Y, Liao Z, Li L, Zhai Y, Zhang L, Gu S, Zhao X. Plasma-based microRNA signatures in early diagnosis of breast cancer. Mol Genet Genomic Med 2020; 8:e1092. [PMID: 32124558 PMCID: PMC7216817 DOI: 10.1002/mgg3.1092] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/12/2019] [Accepted: 11/20/2019] [Indexed: 12/24/2022] Open
Abstract
Background MicroRNAs (miRNAs) play an important role in the development and progression of breast cancer (BC). The purpose of the present study was to identify plasma miRNAs enabling early diagnosis of BC. Materials and Methods Expression levels of seven plasma miRNAs (miR‐23a‐3p, miR‐29b‐2‐5p, miR‐130a‐5p, miR‐144‐3p, miR‐148a‐3p, miR‐152‐3p, and miR‐182‐5p) in 106 patients with newly diagnosed BC and 96 healthy participants were analyzed by qRT‐PCR. We also evaluated the relationship between the expression levels of these miRNAs and clinicopathological features of patients with BC. Results Compared with healthy controls, we found that miR‐23a‐3p (p = .025), miR‐130a‐5p (p = .006), miR‐144‐3p (p = .040), miR‐148a‐3p (p = .023), and miR‐152‐3p (p = .019) were downregulated in the plasma of patients with BC. MiR‐130a‐5p, miR‐144‐3p, and miR‐152‐3p were downexpressed in BC tissues as well as plasma. The expression of the miR‐23a‐3p, miR‐144‐3p, and miR‐152‐3p was related to ER positive and PR positive. Besides, miR‐23a‐3p, miR‐144‐3p, and miR‐152‐3p did show the significant difference in the staging compromised to the control, especially in stage I‐II. Moreover, we also found that miR‐144‐3p and miR‐148a‐3p were associated with lymph node invasion. Conclusions The expression levels of the miR‐23a‐3p, miR‐130a‐5p, miR‐144‐3p, miR‐148a‐3p, and miR‐152‐3p were lower in patients with BC compared to healthy controls and were associated with ex hormone receptor, clinical stage, and lymph node metastasis, indicating the diagnostic potential of these miRNAs in BC.
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Affiliation(s)
- Xu Li
- Department of Medicine Oncology, Affiliated Hospital of Medical College of Xi'an Jiaotong University (Shaanxi Provincial Cancer Hospital), Xi'an, China
| | - Wenjing Zou
- Department of Geriatrics, Xi'an No 5 Hospital, Xi'an, China
| | - Yuzhen Wang
- Department of Medicine Oncology, Affiliated Hospital of Medical College of Xi'an Jiaotong University (Shaanxi Provincial Cancer Hospital), Xi'an, China
| | - Zijun Liao
- Department of Medicine Oncology, Affiliated Hospital of Medical College of Xi'an Jiaotong University (Shaanxi Provincial Cancer Hospital), Xi'an, China
| | - Lina Li
- Department of Medicine Oncology, Affiliated Hospital of Medical College of Xi'an Jiaotong University (Shaanxi Provincial Cancer Hospital), Xi'an, China
| | - Yang Zhai
- Department of Medicine Oncology, Affiliated Hospital of Medical College of Xi'an Jiaotong University (Shaanxi Provincial Cancer Hospital), Xi'an, China
| | - Lingxiao Zhang
- Department of Medicine Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shanzhi Gu
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Xinhan Zhao
- Department of Medicine Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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13
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The role of melatonin on miRNAs modulation in triple-negative breast cancer cells. PLoS One 2020; 15:e0228062. [PMID: 32012171 PMCID: PMC6996834 DOI: 10.1371/journal.pone.0228062] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 01/07/2020] [Indexed: 11/19/2022] Open
Abstract
Melatonin, a hormone secreted by pineal gland, exerts antimetastatic effects by reducing tumor cell proliferation, migration and invasion. MicroRNAs (miRNAs) are small, non-coding RNAs that play a crucial role in regulation of gene expression and biological processes of the cells. Herein, we search for a link between the tumor/metastatic-suppressive actions of melatonin and miRNA expression in triple-negative breast cancer cells. We demonstrated that melatonin exerts its anti-tumor actions by reducing proliferation, migration and c-Myc expression of triple negative breast cancer cells. By using Taqman-based assays, we analyzed the expression levels of a set of miRNAs following melatonin treatment of triple negative breast cancer cells and we identified 17 differentially expressed miRNAs, 6 down-regulated and 11 up-regulated. We focused on the anti-metastatic miR-148b and the oncogenic miR-210 both up-regulated by melatonin treatment and studied the effect of their modulation on melatonin-mediated impairment of tumor progression. Surprisingly, when miR-148b or miR-210 were depleted in triple-negative breast cancer cells, using a specific miR-148b sponge or anti-miR-210, melatonin effects on migration inhibition and c-myc downregulation were still visible suggesting that the increase of miR-148b and miR-210 expression observed following melatonin treatment was not required for the efficacy of melatonin action. Nevertheless, ours results suggest that melatonin exhibit a compound for metastatic trait inhibition, especially in MDA-MB-231 breast cancer cells even if a direct link between modulation of expression of certain proteins or miRNAs and melatonin effects has still to be established.
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14
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Abolghasemi M, Tehrani SS, Yousefi T, Karimian A, Mahmoodpoor A, Ghamari A, Jadidi-Niaragh F, Yousefi M, Kafil HS, Bastami M, Edalati M, Eyvazi S, Naghizadeh M, Targhazeh N, Yousefi B, Safa A, Majidinia M, Rameshknia V. MicroRNAs in breast cancer: Roles, functions, and mechanism of actions. J Cell Physiol 2019; 235:5008-5029. [PMID: 31724738 DOI: 10.1002/jcp.29396] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 09/30/2019] [Indexed: 12/13/2022]
Abstract
Breast cancer is one of the most lethal malignancies in women in the world. Various factors are involved in the development and promotion of the malignancy; most of them involve changes in the expression of certain genes, such as microRNAs (miRNAs). MiRNAs can regulate signaling pathways negatively or positively, thereby affecting tumorigenesis and various aspects of cancer progression, particularly breast cancer. Besides, accumulating data demonstrated that miRNAs are a novel tool for prognosis and diagnosis of breast cancer patients. Herein, we will review the roles of these RNA molecules in several important signaling pathways, such as transforming growth factor, Wnt, Notch, nuclear factor-κ B, phosphoinositide-3-kinase/Akt, and extracellular-signal-regulated kinase/mitogen activated protein kinase signaling pathways in breast cancer.
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Affiliation(s)
- Maryam Abolghasemi
- Cellular and Molecular Biology Research Center, Babol University of Medical Sciences, Iran.,Student Research Committee, Babol University of medical sciences, Babol, Iran
| | - Sadra Samavarchi Tehrani
- Departmant of Clinical Biochemistry, Tehran University of Medical Sciences, Tehran, Iran.,Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Tooba Yousefi
- Cellular and Molecular Biology Research Center, Babol University of Medical Sciences, Iran.,Student Research Committee, Babol University of medical sciences, Babol, Iran
| | - Ansar Karimian
- Cellular and Molecular Biology Research Center, Babol University of Medical Sciences, Iran.,Student Research Committee, Babol University of medical sciences, Babol, Iran
| | - Ata Mahmoodpoor
- Anesthesiology Research Team, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aliakbar Ghamari
- Anesthesiology Research Team, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Mehdi Yousefi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Samadi Kafil
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Bastami
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Edalati
- Department of Laboratory Sciences, Paramedical Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shirin Eyvazi
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Naghizadeh
- Departmant of Clinical Biochemistry, Tehran University of Medical Sciences, Tehran, Iran.,Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Niloufar Targhazeh
- Student Research Committee, Babol University Of Medical Sciences, Babol, Iran
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin Safa
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Vahid Rameshknia
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Medicine, Islamic Azad University, Tabriz, Iran
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15
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Yang F, Fu Z, Yang M, Sun C, Li Y, Chu J, Zhang Y, Li W, Huang X, Li J, Wu H, Ding X, Yin Y. Expression pattern of microRNAs related with response to trastuzumab in breast cancer. J Cell Physiol 2019; 234:16102-16113. [PMID: 30770556 DOI: 10.1002/jcp.28268] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 01/08/2019] [Accepted: 01/10/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND Although an immense effort has been made to develop a novel biomarker for response to trastuzumab, no reliable biomarkers are available to guide management, expect for HER2. The aim of this study was to examine the relationship between microRNA (miRNA) expression and resistance to trastuzumab. METHODS Differentially expressed miRNAs between trastuzumab-resistant and trastuzumab-sensitive cell lines were analyzed using microarrays. We performed Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses to determine the functions of differentially expressed miRNA and their targeted genes. Furthermore, the protein-protein interactions (PPI) network was analyzed. Serum samples were collected from patients with HER2-positive breast cancer who were treated with trastuzumab. We validated the miRNAs expression levels by quantitative reverse-transcription polymerase chain reaction (qRT-PCR) in these serums. Receiver operating characteristic (ROC) curve analysis was performed to evaluate the predictive performance of the miRNA. RESULTS Using miRNA microarrays, 151 miRNAs that significant differentially expressed between the trastuzumab-resistant and sensitive cells were identified, including 46 upregulated and 105 downregulated miRNAs. Results of real-time PCR confirmed seven miRNAs in cell lines. PI3K-Akt signaling pathway was involved in regulating biological function according to KEGG analysis. Compared with the serums of trastuzumab-sensitive patients, three miRNAs, namely miR-200b, miR-135b, and miR-29a, were identified to be upregulated, and miR-224 was downregulated in the trastuzumab-resistant serums. ROC analysis showed that four miRNAs were correlated with trastuzumab resistance. Furthermore, three subnetwork modules of PPI network were obtained. CONCLUSION The results indicated that miRNAs were reliable predictive biomarkers for response to trastuzumab.
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Affiliation(s)
- Fan Yang
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,The First Clinical College of Nanjing Medical University, Nanjing, China
| | - Ziyi Fu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Nanjing Maternal and Child Health Institute, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Mengzhu Yang
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,The First Clinical College of Nanjing Medical University, Nanjing, China
| | - Chunxiao Sun
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,The First Clinical College of Nanjing Medical University, Nanjing, China
| | - Yongfei Li
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,The First Clinical College of Nanjing Medical University, Nanjing, China
| | - Jiahui Chu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,The First Clinical College of Nanjing Medical University, Nanjing, China
| | - Yanhong Zhang
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,The First Clinical College of Nanjing Medical University, Nanjing, China
| | - Wei Li
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiang Huang
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jun Li
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hao Wu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaorong Ding
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,The First Clinical College of Nanjing Medical University, Nanjing, China
| | - Yongmei Yin
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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16
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Swellam M, Ramadan A, El-Hussieny EA, Bakr NM, Hassan NM, Sobeih ME, EzzElArab LR. Clinical significance of blood-based miRNAs as diagnostic and prognostic nucleic acid markers in breast cancer: Comparative to conventional tumor markers. J Cell Biochem 2019; 120:12321-12330. [PMID: 30825229 DOI: 10.1002/jcb.28496] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/17/2018] [Accepted: 01/07/2019] [Indexed: 12/15/2022]
Abstract
microRNAs (miRNAs) are implicated in carcinogenesis and their expression in biological fluids offer great potential as nucleic acid markers for cancer detection and progression. Authors investigated the expression level of miRNAs (miRNA-21, miRNA-126, and miRNA-155) to evaluate their role as diagnostic and prognostic markers for breast cancer compared with other commonly used protein-based markers (CEA and CA15-3). Serum samples from patients with breast cancer (n = 96), patients with benign breast lesion (n = 47), and healthy individuals (n = 39) were enrolled for detection of miRNA expression levels and protein-based tumor markers using fluorescent real-time quantitative polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. Correlation among investigated markers with clinicopathological factors and clinical outcomes were determined. Expression of miRNA-21 and miRNA-155 revealed significant increases in patients with breast cancer compared with both benign and control groups, the same result was reported for tumor markers; on the other hand, miRNA-126 was significantly decreased in breast cancer group as compared with the other two groups. miRNA frequencies were significantly related to clinical staging and histological grading as compared with tumor markers. Patients with breast cancer with increased miRNA-21 and miRNA-155 and decreased miRNA-126 expressions had significantly worse disease-free survival, while only miRNA-21 and miRNA-126 showed poor OS (P< 0.005). In conclusion, investigated miRNAs were superior over tumor markers for the early stage of breast cancer especially those with high-risk factor and their assessment in blood facilitates their role as a potential prognostic molecular marker.
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Affiliation(s)
- Menha Swellam
- Biochemistry Department Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt.,High Throughput Molecular and Genetic Laboratory, Center for Excellence for Advanced Sciences, National Research Centre, Giza, Egypt
| | - Amal Ramadan
- Biochemistry Department Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt.,High Throughput Molecular and Genetic Laboratory, Center for Excellence for Advanced Sciences, National Research Centre, Giza, Egypt
| | - Enas A El-Hussieny
- Zoology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Noha M Bakr
- Biochemistry Department Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt.,High Throughput Molecular and Genetic Laboratory, Center for Excellence for Advanced Sciences, National Research Centre, Giza, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mohamed Emam Sobeih
- Medical Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Lobna R EzzElArab
- Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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17
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Wang X, Chen T, Zhang Y, Zhang N, Li C, Li Y, Liu Y, Zhang H, Zhao W, Chen B, Wang L, Yang Q. Long noncoding RNA Linc00339 promotes triple‐negative breast cancer progression through miR‐377‐3p/HOXC6 signaling pathway. J Cell Physiol 2019; 234:13303-13317. [PMID: 30618083 DOI: 10.1002/jcp.28007] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 12/18/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaolong Wang
- Department of Breast Surgery Qilu Hospital, Shandong University Jinan Shandong China
| | - Tong Chen
- Department of Breast Surgery Qilu Hospital, Shandong University Jinan Shandong China
| | - Yan Zhang
- Department of Breast and Thyroid Surgery Jinan Central Hospital Affiliated to Shandong University Jinan Shandong China
| | - Ning Zhang
- Department of Breast Surgery Qilu Hospital, Shandong University Jinan Shandong China
| | - Chen Li
- Department of Breast Surgery Qilu Hospital, Shandong University Jinan Shandong China
| | - Yaming Li
- Department of Breast Surgery Qilu Hospital, Shandong University Jinan Shandong China
| | - Ying Liu
- Department of Breast Surgery Qilu Hospital, Shandong University Jinan Shandong China
| | - Hanwen Zhang
- Department of Breast Surgery Qilu Hospital, Shandong University Jinan Shandong China
| | - Wenjing Zhao
- Department of Pathology Tissue Bank Qilu Hospital, Shandong University Jinan Shandong China
| | - Bing Chen
- Department of Pathology Tissue Bank Qilu Hospital, Shandong University Jinan Shandong China
| | - Lijuan Wang
- Department of Pathology Tissue Bank Qilu Hospital, Shandong University Jinan Shandong China
| | - Qifeng Yang
- Department of Breast Surgery Qilu Hospital, Shandong University Jinan Shandong China
- Department of Pathology Tissue Bank Qilu Hospital, Shandong University Jinan Shandong China
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18
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Klinge CM. Non-Coding RNAs in Breast Cancer: Intracellular and Intercellular Communication. Noncoding RNA 2018; 4:E40. [PMID: 30545127 PMCID: PMC6316884 DOI: 10.3390/ncrna4040040] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/29/2018] [Accepted: 12/04/2018] [Indexed: 02/07/2023] Open
Abstract
Non-coding RNAs (ncRNAs) are regulators of intracellular and intercellular signaling in breast cancer. ncRNAs modulate intracellular signaling to control diverse cellular processes, including levels and activity of estrogen receptor α (ERα), proliferation, invasion, migration, apoptosis, and stemness. In addition, ncRNAs can be packaged into exosomes to provide intercellular communication by the transmission of microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) to cells locally or systemically. This review provides an overview of the biogenesis and roles of ncRNAs: small nucleolar RNA (snRNA), circular RNAs (circRNAs), PIWI-interacting RNAs (piRNAs), miRNAs, and lncRNAs in breast cancer. Since more is known about the miRNAs and lncRNAs that are expressed in breast tumors, their established targets as oncogenic drivers and tumor suppressors will be reviewed. The focus is on miRNAs and lncRNAs identified in breast tumors, since a number of ncRNAs identified in breast cancer cells are not dysregulated in breast tumors. The identity and putative function of selected lncRNAs increased: nuclear paraspeckle assembly transcript 1 (NEAT1), metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), steroid receptor RNA activator 1 (SRA1), colon cancer associated transcript 2 (CCAT2), colorectal neoplasia differentially expressed (CRNDE), myocardial infarction associated transcript (MIAT), and long intergenic non-protein coding RNA, Regulator of Reprogramming (LINC-ROR); and decreased levels of maternally-expressed 3 (MEG3) in breast tumors have been observed as well. miRNAs and lncRNAs are considered targets of therapeutic intervention in breast cancer, but further work is needed to bring the promise of regulating their activities to clinical use.
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Affiliation(s)
- Carolyn M Klinge
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, KY 40292, USA.
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19
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Wang J, Liang S, Duan X. Molecular mechanism of miR-153 inhibiting migration, invasion and epithelial-mesenchymal transition of breast cancer by regulating transforming growth factor beta (TGF-β) signaling pathway. J Cell Biochem 2018; 120:9539-9546. [PMID: 30525231 DOI: 10.1002/jcb.28230] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Accepted: 11/15/2018] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To investigate the role and mechanism of action of miR-153 in the migration, invasion, and epithelial-mesenchymal transition (EMT) of breast cancer cells. METHODS Quantitative real time polymerase chain reaction (qRT-PCR) was used to detect the expression of miR-153 and transforming growth factor beta receptor 2 (TGFBR2) in tissue specimens and cells. miR-153 overexpression in breast cancer cells was achieved by miR-153 mimic transfection. Mobility and invasiveness of breast cancer cells were evaluated by transwell assay. EMT was evaluated by Western blot detecting the protein level of E-cadherin and Vimentin. Interaction of miR-153 and 3'-untranslated region (UTR) of TGFBR2 messenger RNA (mRNA) was investigated by luciferase reporter assay. RESULTS The expression of miR-153 in breast cancer tissue specimens and MDA-MB-231 cells was significantly lower than that in nonmalignant counterparts, inversely correlating with that of TGFBR2 mRNA. Transfection with miR-153 mimic significantly increased miR-153 level in MDA-MB-231 cells while inhibiting its migration, invasion, and EMT in vitro, which could be mimicked by TGFBR2 knockdown. Luciferase reporter assay confirmed two targets of miR-153 on the 3'-UTR of TGFBR2 mRNA. Restoring TGFBR2 protein level by transient overexpression largely rescued migration, invasion, and EMT of MDA-MB-231 cells that were repressed by miR-153 mimic transfection. CONCLUSION miR-153 inhibits breast cancer cell migration, invasion, and EMT by targeting TGFBR2.
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Affiliation(s)
- Jingwei Wang
- Department of Breast Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Shuhang Liang
- Department of Hepatic Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiuqing Duan
- Department of Breast Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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20
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Klinge CM. Non-coding RNAs: long non-coding RNAs and microRNAs in endocrine-related cancers. Endocr Relat Cancer 2018; 25:R259-R282. [PMID: 29440232 DOI: 10.1530/erc-17-0548] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/12/2018] [Indexed: 12/11/2022]
Abstract
The human genome is 'pervasively transcribed' leading to a complex array of non-coding RNAs (ncRNAs) that far outnumber coding mRNAs. ncRNAs have regulatory roles in transcription and post-transcriptional processes as well numerous cellular functions that remain to be fully described. Best characterized of the 'expanding universe' of ncRNAs are the ~22 nucleotide microRNAs (miRNAs) that base-pair to target mRNA's 3' untranslated region within the RNA-induced silencing complex (RISC) and block translation and may stimulate mRNA transcript degradation. Long non-coding RNAs (lncRNAs) are classified as >200 nucleotides in length, but range up to several kb and are heterogeneous in genomic origin and function. lncRNAs fold into structures that interact with DNA, RNA and proteins to regulate chromatin dynamics, protein complex assembly, transcription, telomere biology and splicing. Some lncRNAs act as sponges for miRNAs and decoys for proteins. Nuclear-encoded lncRNAs can be taken up by mitochondria and lncRNAs are transcribed from mtDNA. Both miRNAs and lncRNAs are dysregulated in endocrine cancers. This review provides an overview on the current understanding of the regulation and function of selected lncRNAs and miRNAs, and their interaction, in endocrine-related cancers: breast, prostate, endometrial and thyroid.
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21
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Gao Y, Ma H, Gao C, Lv Y, Chen X, Xu R, Sun M, Liu X, Lu X, Pei X, Li P. Tumor-promoting properties of miR-8084 in breast cancer through enhancing proliferation, suppressing apoptosis and inducing epithelial-mesenchymal transition. J Transl Med 2018; 16:38. [PMID: 29471858 PMCID: PMC5824560 DOI: 10.1186/s12967-018-1419-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 02/18/2018] [Indexed: 02/06/2023] Open
Abstract
Background Breast cancer is one of the most frequent malignancies and the second leading cause of cancer-related mortality in women. MicroRNAs play a key role in breast cancer development and progression. microRNA(miR)-8084 has been observed an aberrant expression in breast cancer. However, the functions and regulatory axes of miR-8084, particularly in breast cancer, were not entirely clear. Methods miR-8084 expression in breast cancer were investigated in a GEO dataset by in silico analysis and in 42 paired tumor tissues by qPCR. The effects of deregulation of miR-8084 on breast cancer cell proliferation, migration and invasion in vitro and tumorigenicity in vivo were examined by colony-formation assay, wound healing assay, transwell assay and nude mouse subcutaneous tumor formation model. The target gene of miR-8084 were predicted by TargetScan and miRDB, and confirmed by luciferase reporter system. The roles of miR-8084 in the breast cancer cell proliferation, apoptosis and epithelial–mesenchymal transition (EMT) were investigated by MTS, FACS and associated-marker detection by western blot. Results miR-8084 is significantly up-regulated in both serum and malignant tissues from the source of breast cancer patients. miR-8084 promotes the proliferation of breast cancer cells by activating ERK1/2 and AKT. Meanwhile miR-8084 inhibits apoptosis by decreasing p53-BAX related pathway. miR-8084 also enhances migration and invasion by inducing EMT. Moreover, the tumor suppressor ING2 is a potential target of miR-8084, and miR-8084 regulatory axes contribute to pro-tumor effect, at least partially through regulating ING2. Conclusion Our results strongly suggest that miR-8084 functions as an oncogene that promotes the development and progression of breast cancer, and miR-8084 is a potential new diagnostic marker and therapeutic target of breast cancer.
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Affiliation(s)
- Yujing Gao
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China.
| | - Hongning Ma
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Chanchan Gao
- Department of Oncology, Zhongda Hospital, Southeast University, Nanjing, China
| | - Ye Lv
- Oncology Department of Cancer Hospital, General Hospital, Ningxia Medical University, Yinchuan, China
| | - XueHua Chen
- Department of Pediatrics, Ruijin Hospital and Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Rd, Shanghai, 200025, People's Republic of China
| | - Rongrong Xu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Miao Sun
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Xinrui Liu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Xiaohong Lu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Xiuying Pei
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China.
| | - Pu Li
- Department of Pediatrics, Ruijin Hospital and Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Rd, Shanghai, 200025, People's Republic of China.
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22
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Ye P, Fang C, Zeng H, Shi Y, Pan Z, An N, He K, Zhang L, Long X. Differential microRNA expression profiles in tamoxifen-resistant human breast cancer cell lines induced by two methods. Oncol Lett 2018; 15:3532-3539. [PMID: 29467872 PMCID: PMC5796357 DOI: 10.3892/ol.2018.7768] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 11/20/2017] [Indexed: 12/28/2022] Open
Abstract
Tamoxifen (TAM) resistance has become a severe problem for endocrine therapy of breast cancer. The present study investigated the association between microRNA (miRNA) expression and TAM resistance in breast cancer. The TAM-resistant breast cancer MCF-7C and MCF-7T cell lines were established using the human breast cancer cell line MCF-7 as the parental cell line and 4-hydroxytamoxifen (OHT) as the screening drug in vitro. The MCF-7C cell line was established by dose stepwise induction beginning with a low concentration of OHT; the MCF-7T cell line was established by temporal stepwise induction beginning with a high concentration of OHT. Differential miRNA expression profiles between TAM-sensitive (MCF-7) and TAM-resistant (MCF-7C and MCF-7T) breast cancer cell lines were detected and analyzed using RNA sequencing technology. The results of western blot analysis indicated that the level of ERα protein expression in drug-resistant cells was significantly increased. A total of 1,646 miRNAs were detected in all samples, including 1,376 known miRNAs and 270 predicted miRNAs. There were 118 miRNAs expressed at significantly different levels between MCF-7C and MCF-7 cells (P<0.05); among them, 67 miRNAs were upregulated (P<0.05) and 51 miRNA were downregulated (P<0.05). There were 42 miRNAs expressed at significantly different levels between MCF-7T and MCF-7 (P<0.05); among them, 23 miRNAs were upregulated (P<0.05) and 19 miRNAs were downregulated (P<0.05). There were 126 miRNAs with significant differences between MCF-7C and MCF-7T (P<0.05); among them, 76 miRNAs were upregulated (P<0.05) and 50 miRNAs were downregulated. On the basis of the results of the present study, we hypothesize that miR-21, miR-146a, miR-148a, miR-34a and miR-27a may serve important roles in mediating TAM resistance in breast cancer, and have potential as therapeutic targets for TAM-resistant breast cancer.
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Affiliation(s)
- Peng Ye
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Cheng Fang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Hui Zeng
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yu Shi
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Zhongya Pan
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Nairui An
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Keli He
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Li Zhang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xinghua Long
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
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Xu Y, Chao L, Wang J, Sun Y. miRNA-148a regulates the expression of the estrogen receptor through DNMT1-mediated DNA methylation in breast cancer cells. Oncol Lett 2017; 14:4736-4740. [PMID: 29085474 PMCID: PMC5649610 DOI: 10.3892/ol.2017.6803] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 06/15/2017] [Indexed: 01/22/2023] Open
Abstract
Breast cancer remains the most prevalent cancer among women worldwide. The expression of estrogen receptor-α (ER-α) is an important marker for prognosis. ER-α status may be positive or negative in breast cancer cells, although the cause of negative or positive status is not yet fully characterized. In the present study, the expression of ER-α and miRNA-148a was assessed in two breast cancer cell lines, HCC1937 and MCF7. An association between ER-α and miRNA-148a expression was identified. It was then demonstrated that DNA methyltransferase 1 (DNMT1) is a target of miRNA-148a, which may suppress the expression of ER-α via DNA methylation. Finally, an miRNA-148a mimic or inhibitor was transfected into MCF7 cells; the miRNA-148a mimic increased ER-α expression whereas the miRNA-148a inhibitor decreased ER-α expression. In conclusion, it was identified that miRNA-148a regulates ER-α expression through DNMT1-mediated DNA methylation in breast cancer cells. This may represent a potential miRNA-based strategy to modulate the expression of ER-α and provide a novel perspective for investigating the role of miRNAs in treating breast cancer.
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Affiliation(s)
- Yurui Xu
- Department of Thyroid and Breast Surgery, Wuxi No. 2 People's Hospital, Wuxi, Jiangsu 214000, P.R. China
| | - Lin Chao
- Department of Thyroid and Breast Surgery, Wuxi No. 2 People's Hospital, Wuxi, Jiangsu 214000, P.R. China
| | - Jianyu Wang
- Department of Thyroid and Breast Surgery, Wuxi No. 2 People's Hospital, Wuxi, Jiangsu 214000, P.R. China
| | - Yonghong Sun
- Department of Thyroid and Breast Surgery, Wuxi No. 2 People's Hospital, Wuxi, Jiangsu 214000, P.R. China
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24
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Chen D, Liu L, Luo X, Mu A, Yan L, Chen X, Wang L, Wang N, He H, Zhou H, Zhang T. Effect of SMYD3 on the microRNA expression profile of MCF-7 breast cancer cells. Oncol Lett 2017; 14:1831-1840. [PMID: 28789418 DOI: 10.3892/ol.2017.6320] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 03/28/2017] [Indexed: 01/02/2023] Open
Abstract
SET and MYND domain containing 3 (SMYD3) is a histone methyltransferase (HMT) and transcription factor, which serves important roles in carcinogenesis. Numerous downstream target genes of SMYD3 have been identified in previous studies. However, the downstream microRNA (miRNA) s regulated by SMYD3 are yet to be elucidated. In the present study, the results of miRNA microarray demonstrated that 30 miRNA expression profiles were upregulated, whilst 24 miRNAs were downregulated by >2.0-fold in the SMYD3-overexpressed MCF-7 breast cancer cells. The HMT activity was demonstrated to be essential for SMYD3-mediated transactivation of miR-200c-3p and the overexpression of miR-200c-3p inhibited the transactivation effects of SMYD3 on myocardin-related transcription factor-A-dependent migration-associated genes. To our best knowledge, the current study is the first to report on the transcriptional regulation of SMYD3 on miRNAs, and miR-200c may be a downstream negative regulator of the SMYD3-mediated pathway in the migration of breast cancer cells. These results may provide a novel theoretical basis to understand the mechanisms underlying the initiation, progression, diagnosis, prevention and therapy of breast cancer.
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Affiliation(s)
- Dongju Chen
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Lei Liu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Xuegang Luo
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Ai Mu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Lihua Yan
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Xiaoying Chen
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Lei Wang
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Nan Wang
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Hongpeng He
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Hao Zhou
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
| | - Tongcun Zhang
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, P.R. China.,Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China
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25
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Marini A, Lena AM, Panatta E, Ivan C, Han L, Liang H, Annicchiarico-Petruzzelli M, Di Daniele N, Calin GA, Candi E, Melino G. Ultraconserved long non-coding RNA uc.63 in breast cancer. Oncotarget 2017; 8:35669-35680. [PMID: 27447964 PMCID: PMC5482607 DOI: 10.18632/oncotarget.10572] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/13/2016] [Indexed: 12/13/2022] Open
Abstract
Transcribed-ultraconserved regions (T-UCRs) are long non-coding RNAs (lncRNA) encoded by a subset of long ultraconserved stretches in the human genome. Recent studies revealed that the expression of several T-UCRs is altered in cancer and growing evidences underline the importance of T-UCRs in oncogenesis, offering also potential new strategies for diagnosis and prognosis. We found that overexpression of one specific T-UCRs named uc.63 is associated with bad outcome in luminal A subtype of breast cancer patients. uc.63 is localized in the third intron of exportin-1 gene (XPO1) and is transcribed in the same orientation of its host gene. Interestingly, silencing of uc.63 induces apoptosis in vitro. However, silencing of host gene XPO1 does not cause the same effect suggesting that the transcription of uc.63 is independent of XPO1. Our results reveal an important role of uc.63 in promoting breast cancer cells survival and offer the prospect to identify a signature associated with poor prognosis.
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Affiliation(s)
- Alberto Marini
- Medical Research Council, Toxicology Unit, Hodgkin Building, University of Leicester, Leicester, UK
| | - Anna Maria Lena
- Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, Rome, Italy
| | - Emanuele Panatta
- Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, Rome, Italy
| | - Cristina Ivan
- Department of Experimental Therapeutics and The Center for RNA interference and non-coding RNA, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Leng Han
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX, USA
| | - Han Liang
- Department of Bioinformatics and Computational Biology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | | | - Nicola Di Daniele
- Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, Rome, Italy
| | - George A. Calin
- Department of Experimental Therapeutics and The Center for RNA interference and non-coding RNA, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Eleonora Candi
- Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, Rome, Italy
- IDI-IRCCS, Biochemistry Laboratory, Rome, Italy
| | - Gerry Melino
- Medical Research Council, Toxicology Unit, Hodgkin Building, University of Leicester, Leicester, UK
- Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, Rome, Italy
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26
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Mohamad Fairus AK, Choudhary B, Hosahalli S, Kavitha N, Shatrah O. Dihydroorotate dehydrogenase (DHODH) inhibitors affect ATP depletion, endogenous ROS and mediate S-phase arrest in breast cancer cells. Biochimie 2017; 135:154-163. [PMID: 28196676 DOI: 10.1016/j.biochi.2017.02.003] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 02/10/2017] [Indexed: 11/17/2022]
Abstract
Dihydroorotate dehydrogenase (DHODH) is the key enzyme in de novo biosynthesis of pyrimidine in both prokaryotes and eukaryotes. The de novo pathway of pyrimidine biosynthesis is essential in cancer cells proliferation. Leflunomide is an approved DHODH inhibitor that has been widely used for the treatment of arthritis. Similarly, brequinar sodium is another DHODH inhibitor that showed anti-tumour effect in MC38 colon carcinoma cells when used in combination with fluorouracil. Despite the potential role of DHODH inhibitors in cancer therapy, their mechanisms of action remain obscure and await further elucidation. Here, we evaluated the effect of DHODH inhibitors on the production of ATP and ROS in sensitive and non-sensitive breast cancer cells. Subsequently, the effects of DHODH inhibitors on cell cycle as well as on signalling molecules such as p53, p65 and STAT6 were evaluated in sensitive T-47D and non-sensitive MDAMB-436 cells. The correlations between DHODH protein expression, proliferation speed and sensitivity to DHODH inhibitors were also investigated in a panel of cancer cell lines. DHODH inhibitors-sensitive T-47D and MDAMB-231 cells appeared to preserve ROS production closely to endogenous ROS level whereas the opposite was observed in non-sensitive MDAMB-436 and W3.006 cells. In addition, we observed approximately 90% of intracellular ATP depletion in highly sensitive T-47D and MDAMB-231 cells compared to non-sensitive MDAMB-436 cells. There was significant over-expression of p53, p65 and STAT6 signalling molecules in sensitive cells which may be involved in mediating the S-phase arrest in cell cycle progression. The current study suggests that DHODH inhibitors are most effective in cells that express high levels of DHODH enzyme. The inhibition of cell proliferation by these inhibitors appears to be accompanied by ROS production as well as ATP depletion. The increase in expression of signalling molecules observed may be due to pyrimidine depletion which subsequently leads to cell cycle arrest at S-phase.
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Affiliation(s)
- A K Mohamad Fairus
- Aurigene Discovery Technologies (M) Sdn. Bhd., Level 2, Research Management and Innovation Complex, University of Malaya, 50603 Kuala Lumpur, Malaysia; Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - B Choudhary
- Aurigene Discovery Technologies (M) Sdn. Bhd., Level 2, Research Management and Innovation Complex, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - S Hosahalli
- Institute of Transdisciplinary Health Sciences and Technology (TDU) #74/2, Jarakabande Kaval, Post Attur via Yelahanka, Bangalore, 560 064 Karnataka, India.
| | - N Kavitha
- Aurigene Discovery Technologies Limited, 39-40, KIADB Industrial Area, Electronic City Phase II, Hosur Road, Bangalore, 560100 Karnataka, India.
| | - O Shatrah
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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27
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Bakhshi Aliabad MH, Kheirandish S, Zarezadeh Z, Saeidi N, Kabiri H, Khazaei Z, Sahamifar H, Taghvaei F, Jafarzadeh S, Zare M, Bahrami-Babaheidar S, Mazaheri M. Micro-RNAs and Their Roles in Breast Cancer Pathogenesis; An Updated Review Article. INTERNATIONAL JOURNAL OF BASIC SCIENCE IN MEDICINE 2016. [DOI: 10.15171/ijbsm.2016.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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28
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MicroRNA in pancreatic adenocarcinoma: predictive/prognostic biomarkers or therapeutic targets? Oncotarget 2016; 6:23323-41. [PMID: 26259238 PMCID: PMC4695121 DOI: 10.18632/oncotarget.4492] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 07/03/2015] [Indexed: 12/19/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a tumor with a poor prognosis, short overall survival and few chemotherapeutic choices. MicroRNAs (miRNAs) are non-coding, single-stranded RNAs of around 22 nucleotides involved in the pathogenic mechanisms of carcinogenesis and metastasis. They have been studied in many tumors in order to identify potential diagnostic, prognostic or therapeutic targets. In the current literature, many studies have analyzed the role of miRNAs in PDAC. In fact, the absence of appropriate biomarkers, the difficultly of early detection of this tumor, and the lack of effective chemotherapy in patients with unresectable disease have focused attention on miRNAs as new, interesting advance in this malignancy. In this review we analyzed the role of miRNAs in PDAC in order to understand the mechanisms of action and the difference between the onco-miRNA and the tumor suppressor miRNA. We also reviewed all the data related to the use of these molecules as predictive as well as prognostic biomarkers in the course of the disease. Finally, the possible therapeutic use of miRNAs or anti-miRNAs in PDAC is also discussed. In conclusion, although there is still no clinical application for these molecules in PDAC, it is our opinion that the preclinical evidence of the role of specific miRNAs in carcinogenesis, the possibility of using miRNAs as diagnostic or prognostic biomarkers, and their potential therapeutic role, warrant future studies in PDAC.
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29
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Butrym A, Rybka J, Baczyńska D, Poręba R, Mazur G, Kuliczkowski K. Expression of microRNA-181 determines response to treatment with azacitidine and predicts survival in elderly patients with acute myeloid leukaemia. Oncol Lett 2016; 12:2296-2300. [PMID: 27698792 PMCID: PMC5038519 DOI: 10.3892/ol.2016.4970] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 06/02/2016] [Indexed: 11/20/2022] Open
Abstract
MicroRNAs (miRs) are small non-coding RNAs that play important roles in cell differentiation and survival. Abnormal expression of miRs has been demonstrated in numerous types of cancer, including acute myeloid leukaemia (AML). The aim of the present study was to evaluate miR-181 expression at diagnosis and following the completion of chemotherapy in AML patients, with regard to clinical response and outcome, particularly in patients treated with azacitidine. miR-181 expression was analysed using reverse transcription-quantitative polymerase chain reaction in 95 bone marrow specimens from newly diagnosed AML patients and in 20 healthy subjects for comparison. The results revealed upregulated miR-181 expression in the total cohort of AML patients, which was correlated with longer survival. However, in a subset of older AML patients treated with azacitidine, low miR-181 expression at diagnosis was a predictor for complete remission and prolonged survival. The findings indicated that miR-181 has an important role in AML and determines response to azacitidine treatment in older AML patients.
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Affiliation(s)
- Aleksandra Butrym
- Department of Haematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw 50-367, Poland; Department of Physiology, Wroclaw Medical University, Wroclaw 50-367, Poland
| | - Justyna Rybka
- Department of Haematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw 50-367, Poland
| | - Dagmara Baczyńska
- Department of Forensic Medicine, Molecular Techniques Unit, Wroclaw Medical University, Wroclaw 50-345, Poland
| | - Rafał Poręba
- Department of Internal and Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, Wroclaw 50-556, Poland
| | - Grzegorz Mazur
- Department of Internal and Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, Wroclaw 50-556, Poland
| | - Kazimierz Kuliczkowski
- Department of Haematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw 50-367, Poland
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30
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Yin Y, Shen C, Xie P, Cheng Z, Zhu Q. Construction of an initial microRNA regulation network in breast invasive carcinoma by bioinformatics analysis. Breast 2016; 26:1-10. [PMID: 27017236 DOI: 10.1016/j.breast.2015.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 11/03/2015] [Accepted: 11/23/2015] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION microRNAs (miRNA) are involved in many biological processes. They repress target gene expression and play a vital role in breast invasive carcinoma (BRCA). Although many miRNAs are identified to be aberrantly expressed in BRCA and deemed as tumor markers, only sporadic individual studies report their target genes and the pathways involved. METHODS miRNA and mRNA expression data were collected from the Cancer Genome Atlas (TCGA) pilot project. Aberrantly expressed miRNAs and mRNAs in BRCA were identified by comparing tumor samples with normal adjacent tissues. Differentially expressed miRNAs and mRNAs in different breast cancer subtypes were also analyzed. miRNA/target correlations were predicted by calculating the spearman correlation coefficients between miRNA and mRNA, and validated by luciferase assay. RESULTS 31 up-regulated miRNAs, 37 down-regulated miRNAs, 1105 up-regulated mRNAs and 1222 down-regulated mRNAs were identified in BRCA; 125 miRNA/target correlations were predicted, 6 of them were validated. In addition, we also found 9 miRNAs and 143 mRNAs differently expressed between estrogen receptor positive and negative breast cancers, and 4 miRNAs and 46 mRNAs differently expressed between progesterone receptor positive and negative breast cancers. Twelve miRNA/target correlations determined the breast cancer subtypes. CONCLUSION We developed a new systematic analytic method for analyzing TCGA database, which took into account both miRNA and mRNA data to dissect the miRNA regulation network in BRCA.
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Affiliation(s)
- Yongjia Yin
- The School of Pharmaceutical Science in Central South University, Changsha 410013, Hunan, China.
| | - Cheng Shen
- The School of Pharmaceutical Science in Central South University, Changsha 410013, Hunan, China.
| | - Pan Xie
- The School of Pharmaceutical Science in Central South University, Changsha 410013, Hunan, China.
| | - Zeneng Cheng
- The School of Pharmaceutical Science in Central South University, Changsha 410013, Hunan, China.
| | - Qubo Zhu
- The School of Pharmaceutical Science in Central South University, Changsha 410013, Hunan, China.
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31
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Abstract
Breast cancer affects approximately 12 % women worldwide and results in 14 % of all cancer-related fatalities. Breast cancer is commonly categorized into one of four main subtypes (luminal A, luminal B, human epidermal growth factor receptor 2 (HER2) positive and basal), indicating molecular characteristics and informing treatment regimes. The most severe form of breast cancer is metastasis, when the tumour spreads from the breast tissue to other parts of the body. Significantly, the primary tumour subtype affects rates and sites of metastasis. Currently, up to 5 % of patients present with incurable metastasis, with an additional 10–15 % of patients going on to develop metastasis within 3 years of diagnosis. MicroRNAs (miRNAs) are short 21–25 long nucleotides that have been shown to significantly affect gene expression. Currently, >2000 miRNAs have been identified and significantly, specific miRNAs have been found associated with diseases states. Importantly, miRNAs are found circulating in the blood, presenting an opportunity to use these circulating disease-related miRNAs as biomarkers. Clearly, the identification of circulating miRNA specific to metastatic breast cancer presents a unique opportunity for early disease identification and for monitoring disease burden. Currently however, few groups have identified miRNA associated with metastatic breast cancer. Here, we review the literature surrounding the identification of metastatic miRNA in breast cancer patients, highlighting key areas where miRNA biomarker discovery could be beneficial, identifying key concepts, recognizing critical areas requiring further research and discussing potential problems.
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32
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Cizeron-Clairac G, Lallemand F, Vacher S, Lidereau R, Bieche I, Callens C. MiR-190b, the highest up-regulated miRNA in ERα-positive compared to ERα-negative breast tumors, a new biomarker in breast cancers? BMC Cancer 2015; 15:499. [PMID: 26141719 PMCID: PMC4491222 DOI: 10.1186/s12885-015-1505-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 06/19/2015] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) show differential expression across breast cancer subtypes and have both oncogenic and tumor-suppressive roles. Numerous microarray studies reported different expression patterns of miRNAs in breast cancers and found clinical interest for several miRNAs but often with contradictory results. Aim of this study is to identify miRNAs that are differentially expressed in estrogen receptor positive (ER(+)) and negative (ER(-)) breast primary tumors to better understand the molecular basis for the phenotypic differences between these two sub-types of carcinomas and to find potential clinically relevant miRNAs. METHODS We used the robust and reproductive tool of quantitative RT-PCR in a large cohort of well-annotated 153 breast cancers with long-term follow-up to identify miRNAs specifically differentially expressed between ER(+) and ER(-) breast cancers. Cytotoxicity tests and transfection experiments were then used to examine the role and the regulation mechanisms of selected miRNAs. RESULTS We identified a robust collection of 20 miRNAs significantly deregulated in ER(+) compared to ER(-) breast cancers : 12 up-regulated and eight down-regulated miRNAs. MiR-190b retained our attention as it was the miRNA the most strongly over-expressed in ER(+) compared to ER(-) with a fold change upper to 23. It was also significantly up-regulated in ER(+)/Normal breast tissue and down-regulated in ER(-)/Normal breast tissue. Functional experiments showed that miR-190b expression is not directly regulated by estradiol and that miR-190b does not affect breast cancer cell lines proliferation. Expression level of miR-190b impacts metastasis-free and event-free survival independently of ER status. CONCLUSIONS This study reveals miR-190b as the highest up-regulated miRNA in hormone-dependent breast cancers. Due to its specificity and high expression level, miR-190b could therefore represent a new biomarker in hormone-dependent breast cancers but its exact role carcinogenesis remains to elucidate.
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Affiliation(s)
- Geraldine Cizeron-Clairac
- Service de Génétique, Unité de Pharmacogénomique, Institut Curie, 26 rue d'ulm, 75005, Paris, France.
| | - François Lallemand
- Service de Génétique, Unité de Pharmacogénomique, Institut Curie, 26 rue d'ulm, 75005, Paris, France.
| | - Sophie Vacher
- Service de Génétique, Unité de Pharmacogénomique, Institut Curie, 26 rue d'ulm, 75005, Paris, France.
| | - Rosette Lidereau
- Service de Génétique, Unité de Pharmacogénomique, Institut Curie, 26 rue d'ulm, 75005, Paris, France.
| | - Ivan Bieche
- Service de Génétique, Unité de Pharmacogénomique, Institut Curie, 26 rue d'ulm, 75005, Paris, France.
| | - Celine Callens
- Service de Génétique, Unité de Pharmacogénomique, Institut Curie, 26 rue d'ulm, 75005, Paris, France.
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Ren YQ, Fu F, Han J. MiR-27a modulates radiosensitivity of triple-negative breast cancer (TNBC) cells by targeting CDC27. Med Sci Monit 2015; 21:1297-303. [PMID: 25943633 PMCID: PMC4548742 DOI: 10.12659/msm.893974] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background MiR-27a is significantly overexpressed in triple-negative breast cancer (TNBC). However, the exact biological function of MiR-27a in TNBC is not fully understood. In this study, we verified miR-27a expression in TNBC cells and explored how its overexpression modulates radiosensitivity of the cells. Material/Method qRT-PCR analysis was performed to study miR-27a expression in TNBC lines MDA-MB-435 and MDA-MB-231 and in normal human breast epithelial cell line MCF10A. Dual luciferase assay was performed to verify a putative downstream target of miR-27a, CDC27. CCK-8 assay was used to assess the influence of miR-27a-CDC27 axis on cell proliferation under irradiation (IR) treatment. Results We confirmed significantly higher miR-27a expression in 2 TNBC cell lines – MDA-MB-435 and MDA-MB-231 – than in human breast epithelial cell line MCF10A. miR-27a could modulate proliferation and radiosensitivity of TNBC cells. CDC-27 is a direct target of miR-27a and its downregulation conferred increased radioresistance of the cells. Conclusions The miR-27a-CDC27 axis might play an important role in modulating response to radiotherapy in TNBC cells. Testing miR-27a expression might be a useful way to identify a subgroup of patients who will benefit from an IR-based therapeutic approach.
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Affiliation(s)
- Yong-qiang Ren
- Clinical Laboratory, The Central Hospital of Yishui, Linyi, Shandong, China (mainland)
| | - Fengkui Fu
- Dpartment of Radiology, People's Hospital of Binzhou, Binzhou, Shandong, China (mainland)
| | - Jianjun Han
- Department of Breast Surgery, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei, China (mainland)
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