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Tutunchi S, Nourmohammadi P, Tofigh R, Akhavan S, Zare M, Samavarchi Tehrani S, Panahi G. The critical role and functional mechanism of microRNA-146a in doxorubicin-induced apoptosis in breast cancer cells. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2024:1-12. [PMID: 38531028 DOI: 10.1080/15257770.2024.2330592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/06/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Breast cancer among women is the most frequently diagnosed cancer and the leading cause of death worldwide. There many advances in diagnosing and treating this disease, early diagnosis and treatment are still a significant challenge in the early stages. In recent years, microRNAs have attracted much attention in cancer diagnosis and treatment. However, the role of miR-146a in breast cancer is still controversial. We aimed to investigate the roles of miR-146a in apoptosis in breast cancer cells. METHODS A microarray dataset from the GEO database was selected, and using the GEO2R tool, the gene expression profile of this dataset was extracted. Then, the target scan database was used to explore the miR-146a target genes. The link between the signaling pathways was collected. We used miR-146a mimic, which was transfected to the MCF-7 cells to investigate the miR-146a roles in the apoptosis. The expression levels of miR-146a and BAX, BCL-2, and p-21(most essential genes in the apoptosis) were quantified by qPCR and western blot analysis. RESULTS Our findings indicated that doxorubicin induces miR-146a expression. In addition, overexpression of miR-146a affected MCF-7 cell viability, induced apoptosis, and led to reduced expression levels of BCL-2 and P-21, as well as increased BAX expression levels. CONCLUSION Considering the role of doxorubicin in inducing apoptosis and increasing the expression of miR-146a, it can be suggested that this miR is involved in inducing apoptosis in BC cells. In addition, miR-146a can be considered a therapeutic candidate.
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Affiliation(s)
- Sara Tutunchi
- Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Parisa Nourmohammadi
- Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Roghayeh Tofigh
- Department of Animal Biology, Tabriz University, Tabriz, Iran
| | - Saeedeh Akhavan
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University (IAU), Tehran, Iran
| | - Mina Zare
- Recombinant Protein Laboratory, Department of Biochemistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sadra Samavarchi Tehrani
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Science, Tehran, Iran
| | - Ghodratollah Panahi
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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2
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Tariq M, Richard V, Kerin MJ. MicroRNAs as Molecular Biomarkers for the Characterization of Basal-like Breast Tumor Subtype. Biomedicines 2023; 11:3007. [PMID: 38002007 PMCID: PMC10669494 DOI: 10.3390/biomedicines11113007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Breast cancer is a heterogeneous disease highlighted by the presence of multiple tumor variants and the basal-like breast cancer (BLBC) is considered to be the most aggressive variant with limited therapeutics and a poor prognosis. Though the absence of detectable protein and hormonal receptors as biomarkers hinders early detection, the integration of genomic and transcriptomic profiling led to the identification of additional variants in BLBC. The high-throughput analysis of tissue-specific micro-ribonucleic acids (microRNAs/miRNAs) that are deemed to have a significant role in the development of breast cancer also displayed distinct expression profiles in each subtype of breast cancer and thus emerged to be a robust approach for the precise characterization of the BLBC subtypes. The classification schematic of breast cancer is still a fluid entity that continues to evolve alongside technological advancement, and the transcriptomic profiling of tissue-specific microRNAs is projected to aid in the substratification and diagnosis of the BLBC tumor subtype. In this review, we summarize the current knowledge on breast tumor classification, aim to collect comprehensive evidence based on the microRNA expression profiles, and explore their potential as prospective biomarkers of BLBC.
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Affiliation(s)
| | - Vinitha Richard
- Discipline of Surgery, Lambe Institute for Translational Research, H91 TK33 Galway, Ireland;
| | - Michael J. Kerin
- Discipline of Surgery, Lambe Institute for Translational Research, H91 TK33 Galway, Ireland;
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3
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Chakkaravarthi K, Ramesh R, Palaniyandi T, Baskar G, Viswanathan S, Wahab MRA, Surendran H, Ravi M, Sivaji A. Prospectives of mirna gene signaling pathway in triple-negative breast cancer. Pathol Res Pract 2023; 248:154658. [PMID: 37421840 DOI: 10.1016/j.prp.2023.154658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/10/2023]
Abstract
Triple-negative breast cancer (TNBC) is one of the destructive breast cancer subtypes which cannot be treated by current therapies, which is characterized by the lack of estrogen (ER), Progesterone (PR), and Human epidermal receptor (HER2). The treatment for this chemotherapy or radiotherapy and surgery are such treatments and also novel biomarkers or treatment targets can quickly require to improve the outcome of the disease. MicroRNAs are the most popular and offer prospects for TNBC diagnosis and therapy. Some of the miRNAs implicated in THBCs are miR-17-5p, miR-221-3p, miR-26a, miR-136-5p, miR-1296, miR-145, miR-4306, miR-508-5p, miR-448, miR-539, miR-211-5p and miR-218. Potential MiRNAs and their signaling pathways that can be utilized for the diagnosis of TNBC are miR-155, miR-182-5p, miR-9-1-5p, miR-200b, miR-200a, miR-429, miR-195, miR-145-5p, miR-506, and miR-22-3p. miRNAs with known functions as tumor suppressors include miR-1-3p, miR-133a-3p, miR-655, miR-206, miR-136, miR-770, miR-148a, miR-197-3p, miR-137, and miR-127-3p. Analysis of genetic biomarkers, such as miRNAs in TNBC, upholds the pertinence in the diagnosis of the disease. The aim of the review was to clarify the different types of miRNAs characters in TNBC. Recent reports suggest an important role of miRNAs in tumor metastasis. We review here the important miRNAs and their signaling pathways implicated in the oncogenesis, progression, and metastasis of TNBCs.
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Affiliation(s)
- Kamali Chakkaravarthi
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Rajashree Ramesh
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Thirunavukkarasu Palaniyandi
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India; Department of Anatomy, Biomedical Research Unit and Laboratory Animal Centre, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai, India.
| | - Gomathy Baskar
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Sandhiya Viswanathan
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Mugip Rahaman Abdul Wahab
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Hemapreethi Surendran
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Maddaly Ravi
- Department of Human Genetics, Sri Ramachandra University, Chennai, India
| | - Asha Sivaji
- Department of Biochemistry, DKM college for women, Vellore, India
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4
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El Hejjioui B, Lamrabet S, Amrani Joutei S, Senhaji N, Bouhafa T, Malhouf MA, Bennis S, Bouguenouch L. New Biomarkers and Treatment Advances in Triple-Negative Breast Cancer. Diagnostics (Basel) 2023; 13:diagnostics13111949. [PMID: 37296801 DOI: 10.3390/diagnostics13111949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 06/12/2023] Open
Abstract
Triple-negative breast cancer (TNBC) is a specific subtype of breast cancer lacking hormone receptor expression and HER2 gene amplification. TNBC represents a heterogeneous subtype of breast cancer, characterized by poor prognosis, high invasiveness, high metastatic potential, and a tendency to relapse. In this review, the specific molecular subtypes and pathological aspects of triple-negative breast cancer are illustrated, with particular attention to the biomarker characteristics of TNBC, namely: regulators of cell proliferation and migration and angiogenesis, apoptosis-regulating proteins, regulators of DNA damage response, immune checkpoints, and epigenetic modifications. This paper also focuses on omics approaches to exploring TNBC, such as genomics to identify cancer-specific mutations, epigenomics to identify altered epigenetic landscapes in cancer cells, and transcriptomics to explore differential mRNA and protein expression. Moreover, updated neoadjuvant treatments for TNBC are also mentioned, underlining the role of immunotherapy and novel and targeted agents in the treatment of TNBC.
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Affiliation(s)
- Brahim El Hejjioui
- Biomedical and Translational Research Laboratory, Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdellah University, Fez 30050, Morocco
- Department of Medical Genetics and Oncogenetics, HASSAN II University Hospital, Fez 30050, Morocco
| | - Salma Lamrabet
- Biomedical and Translational Research Laboratory, Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdellah University, Fez 30050, Morocco
| | - Sarah Amrani Joutei
- Department of Radiotherapy, HASSAN II University Hospital, Fez 30050, Morocco
| | - Nadia Senhaji
- Faculty of Sciences, Moulay Ismail University, Meknès 50000, Morocco
| | - Touria Bouhafa
- Department of Radiotherapy, HASSAN II University Hospital, Fez 30050, Morocco
| | | | - Sanae Bennis
- Biomedical and Translational Research Laboratory, Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdellah University, Fez 30050, Morocco
| | - Laila Bouguenouch
- Department of Medical Genetics and Oncogenetics, HASSAN II University Hospital, Fez 30050, Morocco
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5
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Szczepanek J, Skorupa M, Jarkiewicz-Tretyn J, Cybulski C, Tretyn A. Harnessing Epigenetics for Breast Cancer Therapy: The Role of DNA Methylation, Histone Modifications, and MicroRNA. Int J Mol Sci 2023; 24:ijms24087235. [PMID: 37108398 PMCID: PMC10138995 DOI: 10.3390/ijms24087235] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/24/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Breast cancer exhibits various epigenetic abnormalities that regulate gene expression and contribute to tumor characteristics. Epigenetic alterations play a significant role in cancer development and progression, and epigenetic-targeting drugs such as DNA methyltransferase inhibitors, histone-modifying enzymes, and mRNA regulators (such as miRNA mimics and antagomiRs) can reverse these alterations. Therefore, these epigenetic-targeting drugs are promising candidates for cancer treatment. However, there is currently no effective epi-drug monotherapy for breast cancer. Combining epigenetic drugs with conventional therapies has yielded positive outcomes and may be a promising strategy for breast cancer therapy. DNA methyltransferase inhibitors, such as azacitidine, and histone deacetylase inhibitors, such as vorinostat, have been used in combination with chemotherapy to treat breast cancer. miRNA regulators, such as miRNA mimics and antagomiRs, can alter the expression of specific genes involved in cancer development. miRNA mimics, such as miR-34, have been used to inhibit tumor growth, while antagomiRs, such as anti-miR-10b, have been used to inhibit metastasis. The development of epi-drugs that target specific epigenetic changes may lead to more effective monotherapy options in the future.
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Affiliation(s)
- Joanna Szczepanek
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, 87-100 Torun, Poland
| | - Monika Skorupa
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, 87-100 Torun, Poland
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, 87-100 Torun, Poland
| | | | - Cezary Cybulski
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, 70-204 Szczecin, Poland
| | - Andrzej Tretyn
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, 87-100 Torun, Poland
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, 87-100 Torun, Poland
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6
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Ismail A, El-Mahdy HA, Abulsoud AI, Sallam AAM, Eldeib MG, Elsakka EG, Zaki MB, Doghish AS. Beneficial and detrimental aspects of miRNAs as chief players in breast cancer: A comprehensive review. Int J Biol Macromol 2022; 224:1541-1565. [DOI: 10.1016/j.ijbiomac.2022.10.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/12/2022] [Accepted: 10/24/2022] [Indexed: 11/05/2022]
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7
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Orrantia-Borunda E, Anchondo-Nuñez P, Acuña-Aguilar LE, Gómez-Valles FO, Ramírez-Valdespino CA. Subtypes of Breast Cancer. Breast Cancer 2022. [DOI: 10.36255/exon-publications-breast-cancer-subtypes] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Alamdari-Palangi V, Jaberi KR, Jaberi AR, Gheibihayat SM, Akbarzadeh M, Tajbakhsh A, Savardashtaki A. The role of miR-153 and related upstream/downstream pathways in cancers: from a potential biomarker to treatment of tumor resistance and a therapeutic target. Med Oncol 2022; 39:62. [PMID: 35477802 DOI: 10.1007/s12032-022-01653-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/12/2022] [Indexed: 11/29/2022]
Abstract
MicroRNAs (miRNAs/miRs) are small non-coding RNAs that have a multifunction and play essential roles in gene regulation. Their dysregulation is associated with several human cancers. MiR-153 has a critical role in many biological processes, such as suppressing tumor growth (mostly), responses to treatment, and drug resistance. However, miR-153 in some cancers shows a different role as an oncogene, such as prostate. The miR-153 expression can be regulated by several regulators, such as lncRNAs and circular RNAs. By discovering the target factors for miR-153, it may be possible to approach early diagnosis, reversing drug resistance, and treatment of cancers. This will help choose the precise treatment for the patient and not incur additional costs in treatment. Thus, we attempt to summarize the current situation and potential development prospects about the role of miR-153 in cancers. The miR-153 paly an important role in cancers and can be used for diagnosis and prognosis.
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Affiliation(s)
- Vahab Alamdari-Palangi
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Khojaste Rahimi Jaberi
- Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abbas Rahimi Jaberi
- Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.,Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Mohammad Gheibihayat
- Department of Medical Biotechnology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Majid Akbarzadeh
- Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Tajbakhsh
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, P.O. Box 71345-1583, Iran.
| | - Amir Savardashtaki
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 71362 81407, Iran. .,Infertility Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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9
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The Anticancer Effects of Flavonoids through miRNAs Modulations in Triple-Negative Breast Cancer. Nutrients 2021; 13:nu13041212. [PMID: 33916931 PMCID: PMC8067583 DOI: 10.3390/nu13041212] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/31/2022] Open
Abstract
Triple- negative breast cancer (TNBC) incidence rate has regularly risen over the last decades and is expected to increase in the future. Finding novel treatment options with minimum or no toxicity is of great importance in treating or preventing TNBC. Flavonoids are new attractive molecules that might fulfill this promising therapeutic option. Flavonoids have shown many biological activities, including antioxidant, anti-inflammatory, and anticancer effects. In addition to their anticancer effects by arresting the cell cycle, inducing apoptosis, and suppressing cancer cell proliferation, flavonoids can modulate non-coding microRNAs (miRNAs) function. Several preclinical and epidemiological studies indicate the possible therapeutic potential of these compounds. Flavonoids display a unique ability to change miRNAs' levels via different mechanisms, either by suppressing oncogenic miRNAs or activating oncosuppressor miRNAs or affecting transcriptional, epigenetic miRNA processing in TNBC. Flavonoids are not only involved in the regulation of miRNA-mediated cancer initiation, growth, proliferation, differentiation, invasion, metastasis, and epithelial-to-mesenchymal transition (EMT), but also control miRNAs-mediated biological processes that significantly impact TNBC, such as cell cycle, immune system, mitochondrial dysregulation, modulating signaling pathways, inflammation, and angiogenesis. In this review, we highlighted the role of miRNAs in TNBC cancer progression and the effect of flavonoids on miRNA regulation, emphasizing their anticipated role in the prevention and treatment of TNBC.
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10
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Balkrishna A, Mittal R, Arya V. Unveiling Role of MicroRNAs as Treatment Strategy and Prognostic Markers in Triple Negative Breast Cancer. Curr Pharm Biotechnol 2021; 21:1569-1575. [PMID: 32593278 DOI: 10.2174/1389201021666200627201535] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/16/2020] [Accepted: 06/01/2020] [Indexed: 11/22/2022]
Abstract
Triple negative breast cancer is the highly aggressive form of breast cancer with high reoccurrence rate and is short of effective treatment strategy. The prognostic markers of it are also not well understood. miRNAs are the global regulators of various cancers on the virtue of its ability to post transcriptional regulation of genes involved in various pathways involved in complicating TNBC. In this review we studied the expression of miRNAs at different stages of TNBC and the role of miRNAs as a tumor suppressor to inhibit cell proliferation, angiogenesis, invasion and metastasis and to induce apoptosis and thereby proposing these miRNAs as an effective treatment strategy against TNBC. miRNA also acts as chemosenstizer in enhancing chemosensitivity of conventional drugs against resistant TNBC cells. The present review emphasizes the importance of miRNAs as prognostic markers to determine the overall survival, disease free survival and distant metastasis free survival rate in TNBC patients. We speculate that miRNA can present themselves as an effective treatment strategy and prognostic marker against TNBC.
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Affiliation(s)
- Acharya Balkrishna
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Rashmi Mittal
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Vedpriya Arya
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
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11
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Volovat SR, Volovat C, Hordila I, Hordila DA, Mirestean CC, Miron OT, Lungulescu C, Scripcariu DV, Stolniceanu CR, Konsoulova-Kirova AA, Grigorescu C, Stefanescu C, Volovat CC, Augustin I. MiRNA and LncRNA as Potential Biomarkers in Triple-Negative Breast Cancer: A Review. Front Oncol 2020; 10:526850. [PMID: 33330019 PMCID: PMC7716774 DOI: 10.3389/fonc.2020.526850] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 10/13/2020] [Indexed: 12/21/2022] Open
Abstract
Noncoding RNAs (ncRNAs) include a diverse range of RNA species, including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs). MiRNAs, ncRNAs of approximately 19-25 nucleotides in length, are involved in gene expression regulation either via degradation or silencing of the messenger RNAs (mRNAs) and have roles in multiple biological processes, including cell proliferation, differentiation, migration, angiogenesis, and apoptosis. LncRNAs, which are longer than 200 nucleotides, comprise one of the largest and most heterogeneous RNA families. LncRNAs can activate or repress gene expression through various mechanisms, acting alone or in combination with miRNAs and other molecules as part of various pathways. Until recently, most research has focused on individual lncRNA and miRNA functions as regulators, and there is limited available data on ncRNA interactions relating to the tumor growth, metastasis, and therapy of cancer, acting either on mRNA alone or as competing endogenous RNA (ceRNA) networks. Triple-negative breast cancer (TNBC) represents approximately 10%-20% of all breast cancers (BCs) and is highly heterogenous and more aggressive than other types of BC, for which current targeted treatment options include hormonotherapy, PARP inhibitors, and immunotherapy; however, no targeted therapies for TNBC are available, partly because of a lack of predictive biomarkers. With advances in proteomics, new evidence has emerged demonstrating the implications of dysregulation of ncRNAs in TNBC etiology. Here, we review the roles of lncRNAs and miRNAs implicated in TNBC, including their interactions and regulatory networks. Our synthesis provides insight into the mechanisms involved in TNBC progression and has potential to aid the discovery of new diagnostic and therapeutic strategies.
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Affiliation(s)
- Simona Ruxandra Volovat
- Department of Medical Oncology-Radiotherapy, Grigore T Popa University of Medicine and Pharmacy, Iași, Romania
| | - Constantin Volovat
- Department of Medical Oncology-Radiotherapy, Grigore T Popa University of Medicine and Pharmacy, Iași, Romania.,Center of Oncology Euroclinic, Iași, Romania
| | | | | | | | | | - Cristian Lungulescu
- Department of Medical Oncology, University of Medicine and Pharmacy, Craiova, Romania
| | | | - Cati Raluca Stolniceanu
- Department of Biophysics and Medical Physics-Nuclear Medicine, University of Medicine and Pharmacy Gr. T. Popa Iasi, Iași, Romania
| | | | - Cristina Grigorescu
- Department of Surgery, Grigore T Popa University of Medicine and Pharmacy, Iași, Romania
| | - Cipriana Stefanescu
- Department of Biophysics and Medical Physics-Nuclear Medicine, University of Medicine and Pharmacy Gr. T. Popa Iasi, Iași, Romania
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12
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Hong HC, Chuang CH, Huang WC, Weng SL, Chen CH, Chang KH, Liao KW, Huang HD. A panel of eight microRNAs is a good predictive parameter for triple-negative breast cancer relapse. Theranostics 2020; 10:8771-8789. [PMID: 32754277 PMCID: PMC7392022 DOI: 10.7150/thno.46142] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/16/2020] [Indexed: 12/14/2022] Open
Abstract
Rationale: Triple-negative breast cancer (TNBC), which has the highest recurrence rate and shortest survival time of all breast cancers, is in urgent need of a risk assessment method to determine an accurate treatment course. Recently, miRNA expression patterns have been identified as potential biomarkers for diagnosis, prognosis, and personalized therapy. Here, we investigate a combination of candidate miRNAs as a clinically applicable signature that can precisely predict relapse in TNBC patients after surgery. Methods: Four total cohorts of training (TCGA_TNBC and GEOD-40525) and validation (GSE40049 and GSE19783) datasets were analyzed with logistic regression and Gaussian mixture analyses. We established a miRNA signature risk model and identified an 8-miRNA signature for the prediction of TNBC relapse. Results: The miRNA signature risk model identified ten candidate miRNAs in the training set. By combining 8 of the 10 miRNAs (miR-139-5p, miR-10b-5p, miR-486-5p, miR-455-3p, miR-107, miR-146b-5p, miR-324-5p and miR-20a-5p), an accurate predictive model of relapse in TNBC patients was established and was highly correlated with prognosis (AUC of 0.80). Subsequently, this 8-miRNA signature prognosticated relapse in the two validation sets with AUCs of 0.89 and 0.90. Conclusion: The 8-miRNA signature predictive model may help clinicians provide a prognosis for TNBC patients with a high risk of recurrence after surgery and provide further personalized treatment to decrease the chance of relapse.
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Affiliation(s)
- Hsiao-Chin Hong
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Guangdong Province 518172, China
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Guangdong Province 518172, China
| | - Cheng-Hsun Chuang
- Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
| | - Wei-Chih Huang
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
- Come True Biomedical Inc., Taichung 408, Taiwan, ROC
| | - Shun-Long Weng
- Department of Obstetrics and Gynecology, Hsinchu MacKay Memorial Hospital, Hsinchu City 300, Taiwan, ROC
- Department of Medicine, MacKay Medical College, New Taipei City 252, Taiwan, ROC
- MacKay Junior College of Medicine, Nursing and Management College, Taipei City 112, Taiwan, ROC
| | - Chia-Hung Chen
- Department of Medical Research, Hsinchu Mackay Memorial Hospital, Hsinchu City 30071, Taiwan, ROC
| | - Kuang-Hsin Chang
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
| | - Kuang-Wen Liao
- Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
- Center for Intelligent Drug Systems and Smart Bio-Devices, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | - Hsien-Da Huang
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Guangdong Province 518172, China
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Guangdong Province 518172, China
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu City 30068, Taiwan, ROC
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13
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Alexandrova E, Lamberti J, Saggese P, Pecoraro G, Memoli D, Mirici Cappa V, Ravo M, Iorio R, Tarallo R, Rizzo F, Collina F, Cantile M, Di Bonito M, Botti G, Nassa G, Weisz A, Giurato G. Small Non-Coding RNA Profiling Identifies miR-181a-5p as a Mediator of Estrogen Receptor Beta-Induced Inhibition of Cholesterol Biosynthesis in Triple-Negative Breast Cancer. Cells 2020; 9:cells9040874. [PMID: 32260128 PMCID: PMC7226848 DOI: 10.3390/cells9040874] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/30/2020] [Accepted: 04/01/2020] [Indexed: 12/17/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a highly heterogeneous disease, representing the most aggressive breast cancer (BC) subtype with limited treatment options due to a lack of estrogen receptor alpha (ERα), progesterone receptor (PR), and Erb-B2 receptor tyrosine kinase 2 (HER2/neu) expression. Estrogen receptor beta (ERβ) is present in a fraction of TNBC patients, where its expression correlates with improved patient outcomes, supported by the fact that it exerts oncosuppressive effects in TNBC cell models in vitro. ERβ is involved in microRNA-mediated regulation of gene expression in hormone-responsive BC cells and could mediate its actions through small noncoding RNAs (sncRNAs) in TNBCs also. To verify this possibility, smallRNA sequencing was performed on three ERβ-expressing cell lines from different TNBC molecular subtypes. Several sncRNAs resulted modulated by ERβ, with a subset being regulated in a tumor subtype-independent manner. Interestingly, sncRNA profiling of 12 ERβ+and 32 ERβ− primary TNBC biopsies identified 7 microRNAs, 1 PIWI-interacting RNA (piRNA), and 1 transfer RNA (tRNA) differentially expressed in ERβ+ compared to ERβ− tumors and cell lines. Among them, miR-181a-5p was found to be overexpressed in ERβ+ tumors and predicted target key components of the cholesterol biosynthesis pathway previously found to be inhibited by ERβ in TNBC cells.
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Affiliation(s)
- Elena Alexandrova
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
- Genomix4Life Srl, 84081 Baronissi, Italy
| | - Jessica Lamberti
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
| | - Pasquale Saggese
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
- Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Giovanni Pecoraro
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
| | - Domenico Memoli
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
| | - Valeria Mirici Cappa
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
| | - Maria Ravo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
- Genomix4Life Srl, 84081 Baronissi, Italy
| | | | - Roberta Tarallo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
| | - Francesca Rizzo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
| | - Francesca Collina
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
| | - Monica Cantile
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
| | - Maurizio Di Bonito
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
| | - Gerardo Botti
- Scientific Direction, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
| | - Giovanni Nassa
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
| | - Alessandro Weisz
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
- Correspondence: (A.W.); (G.G.); Tel.: + 39-089-965043 (A.W.)
| | - Giorgio Giurato
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Italy
- Correspondence: (A.W.); (G.G.); Tel.: + 39-089-965043 (A.W.)
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Jia X, Meng W, Zhang L, Jia Y, Shi Y, Tong Z. Construction of differentially expressed Her-2 related lncRNA-mRNA-miRNA ceRNA network in Her-2 positive breast cancer. Transl Cancer Res 2020; 9:2527-2533. [PMID: 35117612 PMCID: PMC8798026 DOI: 10.21037/tcr.2020.03.34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 02/21/2020] [Indexed: 12/19/2022]
Abstract
Background Her-2 positive subtype breast cancer is characterized as Her-2 gene amplification with poor survival and increased invasiveness accounting for 20–30% of invasive infiltrated breast cancer. A lncRNA-miRNA-mRNA competing endogenous RNA (ceRNA) network is constructed to detect Her-2 specific RNAs in the development and progression of HER-2 positive breast cancer which may overcoming the anti-HER-2 therapy resistance of breast cancer cells. Methods One thousand one hundred and nine breast cancer samples obtained from The Cancer Genome Atlas (TCGA) database were classified into two cohorts including ER+/PR+ (n=461) and ER-/PR- breast cancer (n=152). Differently expressed mRNAs, lncRNAs and miRNAs were screened in ER+/PR+ and ER-/PR- breast cancer cohorts, respectively. lncRNA-miRNA interactions were preformed to predicted and verified by miRcode. miRNA-mRNA interactions were selected to predict targeted mRNAs of miRNAs by miRanda, Targetscan and miRTarBase. Results lncRNA-miRNA-mRNA ceRNA network was constructed by retained lncRNAs, miRNAs and mRNAs. Fifteen DEmiRNAs, 129 DElncRNAs and 269 DEmRNAs were retained in ER+/PR+ cohort after intersection with DEmiRNAs, DElncRNAs and DEmRNAs between breast cancer and normal tissues. Six hundred and ninety-three DEmRNAs, 25 DEmiRNAs and 364 DElncRNAs were retained in ER-/PR- cohort. ceRNA network in ER+/PR+ breast cancer cohort was constructed of the interactions of 4 DElncRNA–DEmiRNA pairs and 2 DEmiRNA–DEmRNA pairs included 4 DElncRNAs, 1 DEmiRNAs, and 2 DEmRNAs. ceRNA network in ER-/PR- breast cancer cohort was constructed of the interactions of 24 DElncRNA–DEmiRNA pairs and 1 DEmiRNA–DEmRNA pairs included 19 DElncRNAs, 4 DEmiRNAs, and 1 DEmRNA. MIR7-3HG- hsa-mir-204-NTRK2 axis was identified in both ER+/PR+ and ER-/PR- cohort in our study. Conclusions Based on the ceRNA hypothesis, a potential Her-2 related regulatory ceRNA networks are constructed which may provide novel insights into the mechanism underlying the biological processes of Her-2 positive breast cancer.
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Affiliation(s)
- Xiaochen Jia
- Department of Breast Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin 300060, China
| | - Wenjing Meng
- Department of Breast Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin 300060, China
| | - Lu Zhang
- Department of Breast Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin 300060, China
| | - Yongsheng Jia
- Department of Breast Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin 300060, China
| | - Yehui Shi
- Department of Breast Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin 300060, China
| | - Zhongsheng Tong
- Department of Breast Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin 300060, China
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15
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Tang Q, Ouyang H, He D, Yu C, Tang G. MicroRNA-based potential diagnostic, prognostic and therapeutic applications in triple-negative breast cancer. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:2800-2809. [PMID: 31284781 DOI: 10.1080/21691401.2019.1638791] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Triple-negative breast cancer (TNBC) is a distinct subtype of breast cancer characterized by high recurrence rates and poor prognosis compared to other breast cancers. MicroRNAs (miRNAs) are small non-coding RNAs that regulate the expression of various post-transcriptional gene and silence a broad set of target genes. Many recent studies have demonstrated that miRNAs play an important role in the initiation, promotion, malignant conversion, progression, and metastasis of TNBC. Therefore, the aim of this review is to focus on recent advancements of microRNAs-based potential applications in diagnosis, treatment and prognosis of triple-negative breast cancer.
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Affiliation(s)
- Qian Tang
- a Institute of Pharmacy and Pharmacology, University of South China , Hengyang , Hunan , China
| | - Hu Ouyang
- a Institute of Pharmacy and Pharmacology, University of South China , Hengyang , Hunan , China
| | - Dongxiu He
- a Institute of Pharmacy and Pharmacology, University of South China , Hengyang , Hunan , China.,b Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study , Hengyang , Hunan , China
| | - Cuiyun Yu
- a Institute of Pharmacy and Pharmacology, University of South China , Hengyang , Hunan , China.,b Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study , Hengyang , Hunan , China
| | - Guotao Tang
- a Institute of Pharmacy and Pharmacology, University of South China , Hengyang , Hunan , China.,b Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study , Hengyang , Hunan , China
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16
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Shi D, Li Y, Fan L, Zhao Q, Tan B, Cui G. Upregulation Of miR-153 Inhibits Triple-Negative Breast Cancer Progression By Targeting ZEB2-Mediated EMT And Contributes To Better Prognosis. Onco Targets Ther 2019; 12:9611-9625. [PMID: 32009797 PMCID: PMC6859470 DOI: 10.2147/ott.s223598] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 10/30/2019] [Indexed: 12/24/2022] Open
Abstract
Background Triple-negative breast cancer (TNBC) is the most malignant type of breast cancer. MicroRNAs (miRs) and their corresponding molecular targets are associated with the occurrence and development of various human malignancies. However, the roles of the microRNA-153 (miR-153) and zinc finger E-box-binding homeobox 2 (ZEB2)-induced epithelial–mesenchymal transition (EMT) in TNBC and predictive effect of miR-153 on the prognosis of TNBC have not been fully elucidated. Materials and methods Relative miR-153 expression level was examined by RT-qPCR assay in TNBC tissues of 60 patients and TNBC cell lines (SKBR3, BT-549 and MDA-MB-231). Cell proliferation ability, invasion ability and migration ability were measured by CCK8 assay, Transwell invasion assay and wound healing assay, respectively. Luciferase reporting experiment was used to confirm that there was a miR-153-binding site in ZEB2 3ʹ-UTR. The expression of ZEB2 in tissues and its relationship with miR-153 were analyzed with immunohistochemistry method. Relative ZEB2, E-cadherin, N-cadherin and Vimentin mRNA and protein expression levels were observed with RT-qPCR and Western blot, respectively. Based on risk factors, a prognostic model was established according to the Cox proportional risk model, and the prognostic risk factors of TNBC patients were predicted and analyzed. Results The expression of miR-153 in TNBC tissues and cells was declined (all P<0.01), and upregulation of miR-153 inhibited proliferation, invasion and migration of TNBC cells (all P<0.01). In addition, miR-153 regulated ZEB2/EMT link in TNBC, and ZEB2 overexpression reversed the tumor-suppressive effect of miR-153 in TNBC. Moreover, miR-153 was an independent predictive factor that was associated with excellent prognosis in TNBC patients. Conclusion miR-153 may inhibit TNBC proliferation, invasion and migration by regulating ZEB2/EMT link. Therefore, miR-153 is expected to be a molecular target and prognostic marker for TNBC.
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Affiliation(s)
- Dongliang Shi
- The Third Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China.,The Second Department of Thyroid and Breast Surgery, Cangzhou Central Hospital, Cangzhou, Hebei, People's Republic of China
| | - Yong Li
- The Third Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Liqiao Fan
- The Third Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Qun Zhao
- The Third Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Bibo Tan
- The Third Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Guozhong Cui
- The Second Department of Thyroid and Breast Surgery, Cangzhou Central Hospital, Cangzhou, Hebei, People's Republic of China
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17
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Rahman MM, Brane AC, Tollefsbol TO. MicroRNAs and Epigenetics Strategies to Reverse Breast Cancer. Cells 2019; 8:cells8101214. [PMID: 31597272 PMCID: PMC6829616 DOI: 10.3390/cells8101214] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/04/2019] [Accepted: 10/06/2019] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is a sporadic disease with genetic and epigenetic components. Genomic instability in breast cancer leads to mutations, copy number variations, and genetic rearrangements, while epigenetic remodeling involves alteration by DNA methylation, histone modification and microRNAs (miRNAs) of gene expression profiles. The accrued scientific findings strongly suggest epigenetic dysregulation in breast cancer pathogenesis though genomic instability is central to breast cancer hallmarks. Being reversible and plastic, epigenetic processes appear more amenable toward therapeutic intervention than the more unidirectional genetic alterations. In this review, we discuss the epigenetic reprogramming associated with breast cancer such as shuffling of DNA methylation, histone acetylation, histone methylation, and miRNAs expression profiles. As part of this, we illustrate how epigenetic instability orchestrates the attainment of cancer hallmarks which stimulate the neoplastic transformation-tumorigenesis-malignancy cascades. As reversibility of epigenetic controls is a promising feature to optimize for devising novel therapeutic approaches, we also focus on the strategies for restoring the epistate that favor improved disease outcome and therapeutic intervention.
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Affiliation(s)
- Mohammad Mijanur Rahman
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Andrew C Brane
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Trygve O Tollefsbol
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Center for Healthy Aging, University of Alabama Birmingham, 1530 3rd Avenue South, Birmingham, AL 35294, USA.
- Comprehensive Cancer Center, University of Alabama Birmingham, 1802 6th Avenue South, Birmingham, AL 35294, USA.
- Nutrition Obesity Research Center, University of Alabama Birmingham, 1675 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Diabetes Center, University of Alabama Birmingham, 1825 University Boulevard, Birmingham, AL 35294, USA.
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18
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Gene Expression and miRNAs Profiling: Function and Regulation in Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Breast Cancer. Cancers (Basel) 2019; 11:cancers11050646. [PMID: 31083383 PMCID: PMC6562440 DOI: 10.3390/cancers11050646] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/06/2019] [Accepted: 05/08/2019] [Indexed: 02/06/2023] Open
Abstract
Breast cancer is the second most common cause of cancer-related deaths among women worldwide. It is a heterogeneous disease with four major molecular subtypes. One of the subtypes, human epidermal growth factor receptor 2 (HER2)-enriched (HER2-positive) is characterized by the absence of estrogen and progesterone receptors and overexpression of HER2 receptor, and accounts for 15–20% of all breast cancers. Despite the anti-HER2 and cytotoxic chemotherapy, HER2 subtype is an aggressive disease with significant mortality. Recent advances in molecular biology techniques, including gene expression profiling, proteomics, and microRNA analysis, have been extensively used to explore the underlying mechanisms behind human breast carcinogenesis and metastasis including HER2-positive breast cancer, paving the way for developing new targeted therapies. This review focuses on recent advances on gene expression and miRNA status in HER2-positive breast cancer.
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19
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Yao Y, Liu R, Gao C, Zhang T, Qi L, Liu G, Zhang W, Wang X, Li J, Li J, Sun C. Identification of prognostic biomarkers for breast cancer based on miRNA and mRNA co-expression network. J Cell Biochem 2019; 120:15378-15388. [PMID: 31037764 DOI: 10.1002/jcb.28805] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/28/2019] [Accepted: 01/30/2019] [Indexed: 12/31/2022]
Abstract
PURPOSE Breast cancer (BC) remains a serious health threat for women due to its high incidence and the trend of rejuvenation. Accumulating evidence has highlighted that microRNAs (miRNAs) and messenger RNAs (mRNAs) could play important roles in various biological processes involved in the pathogenesis of BC. The present study aimed to identify potential prognostic biomarkers associated with BC. METHODS Here, original gene expression profiles of patients with BC was downloaded from The Cancer Genome Atlas (TCGA) database. TargetScan, miRDB, and miRTarBase databases were used to predict the target genes of prognostic-related differentially expressed miRNAs (DEMs). Subsequently, functional enrichment analysis and topological analysis were performed on the overlaps of target genes and differentially expressed mRNAs (DEGs), and Kaplan-Meier analysis was used to predict prognosis-related target genes to identify prognostic biomarkers. RESULTS A total of 218 DEMs and 2222 DEGs were extracted in which eight miRNAs were associated with prognosis, and 278 target DEGs were screened out incorporated into functional enrichment analysis and protein-protein interaction network visualization studies. Additionally, five hub genes (CXCL12, IGF1, LEF1, MMP1, and RACGAP1) were observed as potential biomarkers for BC prognosis through survival analysis. CONCLUSION We performed a distinctive correlation analysis of miRNA-mRNA in BC patients, and identified eight miRNAs and five hub genes may be effective biomarkers for the prognosis of BC patients.
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Affiliation(s)
- Yan Yao
- Clinical Medical Colleges, Weifang Medical University, Weifang, Shandong, People's Republic of China
| | - Ruijuan Liu
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, Shandong, People's Republic of China
| | - Chundi Gao
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China
| | - Tingting Zhang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China
| | - Lingyu Qi
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China
| | - Gongxi Liu
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, Shandong, People's Republic of China
| | - Wenfeng Zhang
- Clinical Medical Colleges, Weifang Medical University, Weifang, Shandong, People's Republic of China
| | - Xue Wang
- Medical Colleges, Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Jie Li
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China
| | - Jia Li
- Clinical Medical Colleges, Weifang Medical University, Weifang, Shandong, People's Republic of China
| | - Changgang Sun
- Department of Oncology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, People's Republic of China.,Department of Oncology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China
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20
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Song H, Li D, Wu T, Xie D, Hua K, Hu J, Deng X, Ji C, Deng Y, Fang L. MicroRNA-301b promotes cell proliferation and apoptosis resistance in triple-negative breast cancer by targeting CYLD. BMB Rep 2019. [PMID: 30269739 PMCID: PMC6283026 DOI: 10.5483/bmbrep.2018.51.11.168] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Aberrant expression of microRNAs (miRNAs) plays important roles in carcinogenesis and tumor progression. However, the expression and biological role of miR-301b in triple-negative breast cancer (TNBC) remains unclear. Here we aimed to evaluate the roles and mechanisms of miR-301b in TNBC cells. miR-301b expression was assessed in TNBC specimens and cell lines by quantitative Real-Time PCR (qRT-PCR). TNBC cells were transfected with miR-301b mimics, inhibitors or Cylindromatosis (CYLD) small interfering RNA (siRNA) using Lipofectamine 2000. The functional roles of miR-301b were determined by cell proliferation, colony formation, and apoptosis assays. Western blots and qRT-PCR were used to measure the expression of mRNAs and proteins in the cells. We found that miR-301b was upregulated in TNBC specimens and cell lines. Overexpression of miR-301b promoted cell proliferation in TNBC cells, while inhibited the apoptosis induced by 5-FU. CYLD was downregulated by miR-301b at both mRNA and protein levels in TNBC cells. Dual-luciferase report assay confirmed that miR-301b downregulated CYLD by direct interaction with the 3′-untranslated region(3′-UTR) of CYLD mRNA. NF-κB activation was mechanistically associated with miR-301b-mediated downregulation of CYLD. However, inhibition of miR-301b reversed all the effects of miR-301b. In conclusion, miR-301b plays an oncogenic role in TNBC possibly by downregulating CYLD and subsequently activating NF-κB p65, and this may provide a novel therapeutic approach for TNBC.
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Affiliation(s)
- Hongming Song
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Dengfeng Li
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Tianqi Wu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Dan Xie
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Kaiyao Hua
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Jiashu Hu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Xiaochong Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Changle Ji
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Yijun Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Lin Fang
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
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Iacona JR, Lutz CS. miR-146a-5p: Expression, regulation, and functions in cancer. WILEY INTERDISCIPLINARY REVIEWS-RNA 2019; 10:e1533. [PMID: 30895717 DOI: 10.1002/wrna.1533] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 12/14/2022]
Abstract
Cancer as we know it is actually an umbrella term for over 100 very unique malignancies in various tissues throughout the human body. Each type, and even subtype of cancer, has different genetic, epigenetic, and other cellular events responsible for malignant development and metastasis. Recent work has indicated that microRNAs (miRNAs) play a major role in these processes, sometimes by promoting cancer growth and other times by suppressing tumorigenesis. miRNAs are small, noncoding RNAs that negatively regulate expression of specific target genes. This review goes into an in-depth look at the most recent finding regarding the significance of one particular miRNA, miR-146a-5p, and its involvement in cancer. Target gene validation and pathway analysis have provided mechanistic insight into this miRNA's purpose in assorted tissues. Additionally, this review outlines novel findings that suggest miR-146a-5p may be useful as a noninvasive biomarker and as a targeted therapeutic in several cancers. This article is categorized under: RNA in Disease and Development > RNA in Disease Regulatory RNAs/RNAi/Riboswitches > Regulatory RNAs.
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Affiliation(s)
- Joseph R Iacona
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers New Jersey Medical School and the School of Graduate Studies, Health Sciences Campus - Newark, Newark, New Jersey
| | - Carol S Lutz
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers New Jersey Medical School and the School of Graduate Studies, Health Sciences Campus - Newark, Newark, New Jersey
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22
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Gupta I, Sareyeldin RM, Al-Hashimi I, Al-Thawadi HA, Al Farsi H, Vranic S, Al Moustafa AE. Triple Negative Breast Cancer Profile, from Gene to microRNA, in Relation to Ethnicity. Cancers (Basel) 2019; 11:cancers11030363. [PMID: 30871273 PMCID: PMC6468678 DOI: 10.3390/cancers11030363] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 03/01/2019] [Accepted: 03/06/2019] [Indexed: 12/15/2022] Open
Abstract
Breast cancer is the most frequent cause of cancer-related deaths among women worldwide. It is classified into four major molecular subtypes. Triple-negative breast cancers (TNBCs), a subgroup of breast cancer, are defined by the absence of estrogen and progesterone receptors and the lack of HER-2 expression; this subgroup accounts for ~15% of all breast cancers and exhibits the most aggressive metastatic behavior. Currently, very limited targeted therapies exist for the treatment of patients with TNBCs. On the other hand, it is important to highlight that knowledge of the molecular biology of breast cancer has recently changed the decision-making process regarding the course of cancer therapies. Thus, a number of new techniques, such as gene profiling and sequencing, proteomics, and microRNA analysis have been used to explore human breast carcinogenesis and metastasis including TNBC, which consequently could lead to new therapies. Nevertheless, based on evidence thus far, genomics profiles (gene and miRNA) can differ from one geographic location to another as well as in different ethnic groups. This review provides a comprehensive and updated information on the genomics profile alterations associated with TNBC pathogenesis associated with different ethnic backgrounds.
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Affiliation(s)
- Ishita Gupta
- College of Medicine, Qatar University, Doha P. O. Box:2713, Qatar.
| | | | - Israa Al-Hashimi
- College of Medicine, Qatar University, Doha P. O. Box:2713, Qatar.
| | | | - Halema Al Farsi
- College of Medicine, Qatar University, Doha P. O. Box:2713, Qatar.
| | - Semir Vranic
- College of Medicine, Qatar University, Doha P. O. Box:2713, Qatar.
| | - Ala-Eddin Al Moustafa
- College of Medicine, Qatar University, Doha P. O. Box:2713, Qatar.
- Biomedical Research Centre, Qatar University, Doha P.O Box: 2713, Qatar.
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Song H, Li D, Wu T, Xie D, Hua K, Hu J, Deng X, Ji C, Deng Y, Fang L. MicroRNA-301b promotes cell proliferation and apoptosis resistance in triple-negative breast cancer by targeting CYLD. BMB Rep 2018; 51:602-607. [PMID: 30269739 PMCID: PMC6283026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 08/28/2018] [Accepted: 09/27/2018] [Indexed: 12/17/2023] Open
Abstract
Aberrant expression of microRNAs (miRNAs) plays important roles in carcinogenesis and tumor progression. However, the expression and biological role of miR-301b in triple-negative breast cancer (TNBC) remains unclear. Here we aimed to evaluate the roles and mechanisms of miR-301b in TNBC cells. miR-301b expression was assessed in TNBC specimens and cell lines by quantitative Real-Time PCR (qRT-PCR). TNBC cells were transfected with miR-301b mimics, inhibitors or Cylindromatosis (CYLD) small interfering RNA (siRNA) using Lipofectamine 2000. The functional roles of miR-301b were determined by cell proliferation, colony formation, and apoptosis assays. Western blots and qRT-PCR were used to measure the expression of mRNAs and proteins in the cells. We found that miR-301b was upregulated in TNBC specimens and cell lines. Overexpression of miR-301b promoted cell proliferation in TNBC cells, while inhibited the apoptosis induced by 5-FU. CYLD was downregulated by miR-301b at both mRNA and protein levels in TNBC cells. Dual-luciferase report assay confirmed that miR-301b downregulated CYLD by direct interaction with the 3'-untranslated region(3'-UTR) of CYLD mRNA. NF-κB activation was mechanistically associated with miR-301b-mediated downregulation of CYLD. However, inhibition of miR-301b reversed all the effects of miR-301b. In conclusion, miR-301b plays an oncogenic role in TNBC possibly by downregulating CYLD and subsequently activating NF-κB p65, and this may provide a novel therapeutic approach for TNBC. [BMB Reports 2018; 51(11): 602-607].
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Affiliation(s)
- Hongming Song
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Dengfeng Li
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Tianqi Wu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Dan Xie
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Kaiyao Hua
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Jiashu Hu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Xiaochong Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Changle Ji
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Yijun Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Lin Fang
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
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Piasecka D, Braun M, Kordek R, Sadej R, Romanska H. MicroRNAs in regulation of triple-negative breast cancer progression. J Cancer Res Clin Oncol 2018; 144:1401-1411. [PMID: 29923083 PMCID: PMC6061037 DOI: 10.1007/s00432-018-2689-2] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/13/2018] [Indexed: 12/19/2022]
Abstract
PURPOSE Dysregulation of miRNA profile has been associated with a broad spectrum of cellular processes underlying progression of various human malignancies. Increasing evidence suggests that specific microRNA clusters might be of clinical utility, especially in triple-negative breast carcinoma (TNBC), devoid of both predictive markers and potential therapeutic targets. Here we provide a comprehensive review of the existing data on microRNAs in TNBC, their molecular targets, a putative role in invasive progression with a particular emphasis on the epithelial-to-mesenchymal transition (EMT) and acquisition of stem-cell properties (CSC), regarded both as prerequisites for metastasis, and significance for therapy. METHODS PubMed and Medline databases were systematically searched for the relevant literature. 121 articles have been selected and thoroughly analysed. RESULTS Several miRNAs associated with EMT/CSC and invasion were identified as significantly (1) upregulated: miR-10b, miR-21, miR-29, miR-9, miR-221/222, miR-373 or (2) downregulated: miR-145, miR-199a-5p, miR-200 family, miR-203, miR-205 in TNBC. Dysregulation of miR-10b, miR-21, miR-29, miR-145, miR-200 family, miR-203, miR-221/222 was reported of prognostic value in TNBC patients. CONCLUSION Available data suggest that specific microRNA clusters might play an important role in biology of TNBC, understanding of which should assist disease prognostication and therapy.
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Affiliation(s)
| | - Marcin Braun
- Department of Pathology, Medical University of Lodz, Lodz, Poland
- Postgraduate School for Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Radzislaw Kordek
- Department of Pathology, Medical University of Lodz, Lodz, Poland
| | - Rafal Sadej
- Department of Molecular Enzymology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland.
| | - Hanna Romanska
- Department of Pathology, Medical University of Lodz, Lodz, Poland.
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Mandujano-Tinoco EA, García-Venzor A, Melendez-Zajgla J, Maldonado V. New emerging roles of microRNAs in breast cancer. Breast Cancer Res Treat 2018; 171:247-259. [PMID: 29948402 DOI: 10.1007/s10549-018-4850-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 06/03/2018] [Indexed: 01/12/2023]
Abstract
BACKGROUND MicroRNAs constitute a large family of non-coding RNAs, which actively participate in tumorigenesis by regulating a set of mRNAs of distinct signaling pathways. An altered expression of these molecules has been found in different tumorigenic processes of breast cancer, the most common type of cancer in the female population worldwide. PURPOSE The objective of this review is to discuss how miRNAs become master regulators in breast tumorigenesis. METHODS An integrative review of miRNAs and breast cancer literature from the last 5 years was done on PubMed. We summarize recent works showing that the defects on the biogenesis of miRNAs are associated with different breast cancer characteristics. Then, we show several examples that demonstrate the link between cellular processes regulated by miRNAs and the hallmarks of breast cancer. Finally, we examine the complexity in the regulation of these molecules as they are modulated by other non-coding RNAs and the clinical applications of miRNAs as they could serve as good diagnostic and classification tools. CONCLUSION The information presented in this review is important to encourage new directed studies that consider microRNAs as a good tool to improve the diagnostic and treatment alternatives in breast cancer.
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Affiliation(s)
- Edna Ayerim Mandujano-Tinoco
- Epigenetics Laboratory, Instituto Nacional de Medicina Genómica, Periferico Sur 4809, Arenal Tepepan, 14610, Mexico, CDMX, Mexico.,Laboratory of Connective Tissue, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra". Calz., México-Xochimilco 289, Arenal de Guadalupe, 14389, Mexico, CDMX, Mexico
| | - Alfredo García-Venzor
- Epigenetics Laboratory, Instituto Nacional de Medicina Genómica, Periferico Sur 4809, Arenal Tepepan, 14610, Mexico, CDMX, Mexico
| | - Jorge Melendez-Zajgla
- Functional Genomics Laboratory, Instituto Nacional de Medicina Genómica, Periferico Sur 4809, Arenal Tepepan, 14610, Mexico, CDMX, Mexico
| | - Vilma Maldonado
- Epigenetics Laboratory, Instituto Nacional de Medicina Genómica, Periferico Sur 4809, Arenal Tepepan, 14610, Mexico, CDMX, Mexico.
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Guo B, Zhang Q, Wang H, Chang P, Tao K. KCNQ1OT1 promotes melanoma growth and metastasis. Aging (Albany NY) 2018; 10:632-644. [PMID: 29667930 PMCID: PMC5940105 DOI: 10.18632/aging.101418] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 04/10/2018] [Indexed: 12/17/2022]
Abstract
Melanoma is the deadliest cutaneous neoplasm. To prevent metastasis, early diagnosis and surgical treatment is vital. Long non-coding RNAs (lncRNAs) may serve as biomarkers and therapeutic targets in tumors. We investigated the molecular mechanisms of lncRNA KCNQ1OT1 in melanoma. Real time PCR demonstrated that KCNQ1OT1 expression is up-regulated in melanoma tissues and cells. KCNQ1OT1 promoted cell proliferation and metastasis in melanoma. By directly bindin to miR-153, KCNQ1OT1 acted as a competing endogenous RNA (ceRNA) to de-repress MET expression. Our results may provide the basis for a novel strategy for early detection and/or treatment of melanoma.
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Affiliation(s)
- Bingyu Guo
- Department of Reconstructive and Plastic Surgery, The General Hospital of Shenyang Military Region, Shenyang, China
| | - Qian Zhang
- Department of Reconstructive and Plastic Surgery, The General Hospital of Shenyang Military Region, Shenyang, China
| | - Hongyi Wang
- Department of Reconstructive and Plastic Surgery, The General Hospital of Shenyang Military Region, Shenyang, China
| | - Peng Chang
- Department of Reconstructive and Plastic Surgery, The General Hospital of Shenyang Military Region, Shenyang, China
| | - Kai Tao
- Department of Reconstructive and Plastic Surgery, The General Hospital of Shenyang Military Region, Shenyang, China
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Yang ZX, Zhang B, Wei J, Jiang GQ, Wu YL, Leng BJ, Xing CG. MiR-539 inhibits proliferation and migration of triple-negative breast cancer cells by down-regulating LAMA4 expression. Cancer Cell Int 2018; 18:16. [PMID: 29434522 PMCID: PMC5791727 DOI: 10.1186/s12935-018-0512-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 01/22/2018] [Indexed: 01/18/2023] Open
Abstract
Background Recent studies have shown that laminin subunit alpha 4 (LAMA4) plays an important role in carcinogenesis. However, its molecular biological function in triple-negative breast cancer (TNBC) has not been entirely clarified. This study investigated the expression of LAMA4 in TNBC and its effect on cell proliferation, migration and invasion. Furthermore, we also identified the potential miRNA directly targeting LAMA4. Methods Western blot, Real-time quantitative PCR (qPCR) and immunohistochemical staining (IHC) were used to detect the expression of LAMA4 in TNBC. The effects of LAMA4 on TNBC cell proliferation, migration and invasion were also explored in vitro. The potential miRNA that targets LAMA4 was determined by dual luciferase reporter assay and verified by qPCR and western blot analysis. Results Our study showed LAMA4 mRNA (p = 0.001) and protein (p = 0.005) expression in TNBC tissue samples were elevated compared with adjacent normal tissue samples, and LAMA4 was mainly expressed in the cytoplasm of breast carcinoma cells. Knockdown of LAMA4 inhibited TNBC cell proliferation, migration and invasion in vitro. Moreover, further study revealed that LAMA4 was a putative target of miR-539, and miR-539 negatively regulated LAMA4 expression by directly targeting its 3′-UTR. Conclusions Our study suggested that miR-539 suppressed the expression of LAMA4. LAMA4 plays an important role in tumor progression and may be an important target in treatment of TNBC.
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Affiliation(s)
- Zhi-Xue Yang
- 1Department of General Surgery, The Second Affiliated Hospital, Soochow University, Suzhou, 215004 Jiangsu China
| | - Bo Zhang
- 2Department of Radiology, The Second Affiliated Hospital, Soochow University, Suzhou, 215004 Jiangsu China
| | - Jinrong Wei
- 1Department of General Surgery, The Second Affiliated Hospital, Soochow University, Suzhou, 215004 Jiangsu China
| | - Guo-Qin Jiang
- 1Department of General Surgery, The Second Affiliated Hospital, Soochow University, Suzhou, 215004 Jiangsu China
| | - Yan-Lin Wu
- 1Department of General Surgery, The Second Affiliated Hospital, Soochow University, Suzhou, 215004 Jiangsu China
| | - Bing-Jing Leng
- 1Department of General Surgery, The Second Affiliated Hospital, Soochow University, Suzhou, 215004 Jiangsu China
| | - Chun-Gen Xing
- 1Department of General Surgery, The Second Affiliated Hospital, Soochow University, Suzhou, 215004 Jiangsu China
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Changes in circulating microRNA levels can be identified as early as day 8 of pregnancy in cattle. PLoS One 2017; 12:e0174892. [PMID: 28380001 PMCID: PMC5381804 DOI: 10.1371/journal.pone.0174892] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 03/16/2017] [Indexed: 12/15/2022] Open
Abstract
Poor reproductive performance remains a major issue in the dairy industry, with low conception rates having a significant impact on milk production through extended calving intervals. A major limiting factor is the lack of reliable methods for early pregnancy diagnosis. Identification of animals within a herd that fail to conceive within 3 weeks after insemination would allow early re-insemination and shorten calving intervals. In a previous study, we found an increase in plasma miR-26a levels in Day 16-pregnant relative to non-pregnant heifers, however changes in miRNA levels that early during pregnancy were very small which likely prevented the identification of robust biomarkers. In this study, we extended our analyses to a wider interval during pregnancy (Days 8 to 60, n = 11 heifers) with the rationale that this may facilitate the identification of additional early pregnancy miRNA biomarkers. Using small RNA sequencing we identified a total of 77 miRNAs that were differentially expressed on Day 60 relative to Day 0 of pregnancy. We selected 14 miRNAs for validation by RT-qPCR and confirmed significant differences in the expression of let-7f, let-7c, miR-30c, miR-101, miR-26a, miR-205 and miR-143 between Days 0 and 60. RT-qPCR profiling throughout Days 0, 8, 16 and 60 of pregnancy showed a distinct increase in circulating levels of miR-26a (3.1-fold, P = 0.046) as early as Day 8 of pregnancy. In summary, in contrast to earlier stages of pregnancy (≤ Day 24), marked differences in the levels of multiple miRNAs can be detected in circulation by Day 60 in cattle. Retrospective analyses showed miR-26a levels to be increased in circulation as early as Day 8, sooner than previously reported in any species, suggesting a biological role for this miRNA in the very early events of pregnancy.
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