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Zhao Y, Zhao Y, Liu L, Li G, Wu Y, Cui Y, Xie L. Tumor-exosomal miR-205-5p as a diagnostic biomarker for colorectal cancer. Clin Transl Oncol 2024:10.1007/s12094-024-03647-6. [PMID: 39133387 DOI: 10.1007/s12094-024-03647-6] [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: 05/06/2024] [Accepted: 07/29/2024] [Indexed: 08/13/2024]
Abstract
BACKGROUND Tumor-derived exosomal miRNAs play crucial roles in cancer diagnosis. Current studies aim to identify exosomal miRNAs associated with colorectal cancer (CRC) that are noninvasive, sensitive, and specific. PATIENTS AND METHODS Exosomes were extracted from CRC patients and healthy donors via ultracentrifugation, followed by verification via transmission electron microscopy (TEM), qNano, and Western blot analysis. The differential expression levels and clinical characteristics of miR-205-5p were analyzed in CRC via data from The Cancer Genome Atlas (TCGA). Real-time quantitative PCR was used to assess the expression levels of exosomal miRNAs in 157 primary CRC patients, 20 patients with benign diseases, and 135 healthy donors. Predictions regarding target genes were made to guide further exploration of the disease's etiopathogenesis through bioinformatics. RESULTS Compared with that in healthy donors, the expression of miR-205-5p in colorectal cancer (CRC) patients was significantly lower, as determined through analysis of the TCGA database. We conducted a prediction and analysis of the functional enrichment of downstream target genes regulated by miR-205-5p. A lower level of exosomal miR-205-5p in the serum of CRC patients than in that of healthy controls (p < 0.0001) and patients with benign disease (p < 0.0001) was observed. Furthermore, the expression levels of exosomal miR-205-5p were significantly lower in early-stage CRC patients than in the comparison groups (p<0.001 and p < 0.0001). Notably, the expression levels of exosomal miR-205-5p significantly increased postoperatively (p = 0.0053). CONCLUSIONS The present study demonstrated that serum exosomal miR-205-5p may be a diagnostic biomarker for CRC.
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Affiliation(s)
- Yajing Zhao
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Yapeng Zhao
- Department of Stomatology, Qinghai Red Cross Hospital, Xining, Qinghai, China
| | - Lisheng Liu
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Guanghao Li
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Yawen Wu
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Yanan Cui
- Shandong Second Medical University, Weifang, Shandong, China
| | - Li Xie
- Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250117, Shandong Province, China.
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2
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Rahimi-Moghaddam A, Ghorbanmehr N, Gharbi S, Nili F, Korsching E. Interplay of miR-542, miR-126, miR-143 and miR-26b with PI3K-Akt is a Diagnostic Signal and Putative Regulatory Target in HPV-Positive Cervical Cancer. Biochem Genet 2024:10.1007/s10528-024-10837-y. [PMID: 38849709 DOI: 10.1007/s10528-024-10837-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 05/09/2024] [Indexed: 06/09/2024]
Abstract
Human papillomavirus accounts for 99.7% of all cervical cancer cases worldwide. The viral oncoproteins alter normal cell signaling and gene expression, resulting in loss of cell cycle control and cancer development. Also, microRNAs (miRNAs) have been reported to play a critical role in cervical carcinogenesis. Especially these are not only appropriate targets for therapeutic intervention in cervical cancer but also early diagnostic signals. The given study tries to improve the sparse knowledge on miRNAs and their role in this physiological context. Deregulated miRNAs were identified by analyzing the raw data of the well-founded GSE20592 dataset including 16 tumor/normal pairs of human cervical tissue samples. The dataset was quantified by a conservative strategy based on HTSeq and Salmon, followed by target prediction via TargetScan and miRDB. The comprehensive pathway analysis of all factors was performed using DAVID. The theoretical results were subject of a stringent experimental validation in a well-characterized clinical cohort of 30 tumor/normal pairs of cervical samples. The top 31 miRNAs and their 140 primary target genes were closely intertwined with the PI3K-Akt signaling pathway. MiR-21-3p and miR-1-3p showed a prominent regulatory role while miR-542, miR-126, miR-143, and miR-26b are directly targeting both PI3K and AKT. This study provides insights into the regulation of PI3K-Akt signaling as an important inducer of cervical cancer and identified miR-542, miR-126, miR-143, and miR-26b as promising inhibitors of the PI3K-Akt action.
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Affiliation(s)
- Akram Rahimi-Moghaddam
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
| | - Nassim Ghorbanmehr
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran.
| | - Sedigheh Gharbi
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Fatemeh Nili
- Department of Pathology, Imam Khomeini-Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Eberhard Korsching
- Cancer and Complex Systems Research Group, Medical Faculty, University of Muenster, Muenster, Germany
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3
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Gohlke L, Alahdab A, Oberhofer A, Worf K, Holdenrieder S, Michaelis M, Cinatl J, Ritter CA. Loss of Key EMT-Regulating miRNAs Highlight the Role of ZEB1 in EGFR Tyrosine Kinase Inhibitor-Resistant NSCLC. Int J Mol Sci 2023; 24:14742. [PMID: 37834189 PMCID: PMC10573279 DOI: 10.3390/ijms241914742] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Despite recent advances in the treatment of non-small cell lung cancer (NSCLC), acquired drug resistance to targeted therapy remains a major obstacle. Epithelial-mesenchymal transition (EMT) has been identified as a key resistance mechanism in NSCLC. Here, we investigated the mechanistic role of key EMT-regulating small non-coding microRNAs (miRNAs) in sublines of the NSCLC cell line HCC4006 adapted to afatinib, erlotinib, gefitinib, or osimertinib. The most differentially expressed miRNAs derived from extracellular vesicles were associated with EMT, and their predicted target ZEB1 was significantly overexpressed in all resistant cell lines. Transfection of a miR-205-5p mimic partially reversed EMT by inhibiting ZEB1, restoring CDH1 expression, and inhibiting migration in erlotinib-resistant cells. Gene expression of EMT-markers, transcription factors, and miRNAs were correlated during stepwise osimertinib adaptation of HCC4006 cells. Temporally relieving cells of osimertinib reversed transition trends, suggesting that the implementation of treatment pauses could provide prolonged benefits for patients. Our results provide new insights into the contribution of miRNAs to drug-resistant NSCLC harboring EGFR-activating mutations and highlight their role as potential biomarkers and therapeutic targets.
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Affiliation(s)
- Linus Gohlke
- Institute of Pharmacy, Clinical Pharmacy, University Greifswald, Friedrich-Ludwig-Jahn-Str. 17, 17489 Greifswald, Germany;
| | - Ahmad Alahdab
- Institute of Pharmacy, Clinical Pharmacy, University Greifswald, Friedrich-Ludwig-Jahn-Str. 17, 17489 Greifswald, Germany;
| | - Angela Oberhofer
- Munich Biomarker Research Center, Institute of Laboratory Medicine, German Heart Center, Technical University Munich, 80636 Munich, Germany; (A.O.); (K.W.); (S.H.)
| | - Karolina Worf
- Munich Biomarker Research Center, Institute of Laboratory Medicine, German Heart Center, Technical University Munich, 80636 Munich, Germany; (A.O.); (K.W.); (S.H.)
| | - Stefan Holdenrieder
- Munich Biomarker Research Center, Institute of Laboratory Medicine, German Heart Center, Technical University Munich, 80636 Munich, Germany; (A.O.); (K.W.); (S.H.)
| | - Martin Michaelis
- School of Biosciences, Division of Natural Sciences, University of Kent, Canterbury, Kent CT2 7NJ, UK;
| | - Jindrich Cinatl
- Institute of Medical Virology, University Hospital Frankfurt, Goethe University, 60596 Frankfurt am Main, Germany;
| | - Christoph A Ritter
- Institute of Pharmacy, Clinical Pharmacy, University Greifswald, Friedrich-Ludwig-Jahn-Str. 17, 17489 Greifswald, Germany;
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4
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Tolue Ghasaban F, Maharati A, Zangouei AS, Zangooie A, Moghbeli M. MicroRNAs as the pivotal regulators of cisplatin resistance in head and neck cancers. Cancer Cell Int 2023; 23:170. [PMID: 37587481 PMCID: PMC10428558 DOI: 10.1186/s12935-023-03010-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 07/28/2023] [Indexed: 08/18/2023] Open
Abstract
Although, there is a high rate of good prognosis in early stage head and neck tumors, about half of these tumors are detected in advanced stages with poor prognosis. A combination of chemotherapy, radiotherapy, and surgery is the treatment option in head and neck cancer (HNC) patients. Although, cisplatin (CDDP) as the first-line drug has a significant role in the treatment of HNC patients, CDDP resistance can be observed in a large number of these patients. Therefore, identification of the molecular mechanisms involved in CDDP resistance can help to reduce the side effects and also provides a better therapeutic management. MicroRNAs (miRNAs) as the post-transcriptional regulators play an important role in drug resistance. Therefore, in the present review we investigated the role of miRNAs in CDDP response of head and neck tumors. It has been reported that the miRNAs exerted their roles in CDDP response by regulation of signaling pathways such as WNT, NOTCH, PI3K/AKT, TGF-β, and NF-kB as well as apoptosis, autophagy, and EMT process. The present review paves the way to suggest a non-invasive miRNA based panel marker for the prediction of CDDP response among HNC patients. Therefore, such diagnostic miRNA based panel marker reduces the CDDP side effects and improves the clinical outcomes of these patients following an efficient therapeutic management.
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Affiliation(s)
- Faezeh Tolue Ghasaban
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhosein Maharati
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Sadra Zangouei
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Zangooie
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
- Student research committee, Birjand University of Medical Sciences, Birjand, Iran
| | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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5
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Dobre M, Poenaru RC, Niculae AM, Vladut C, Herlea V, Milanesi E, Hinescu ME. Increased Levels of miR-15b-5p and miR-20b-5p in Pancreatic Ductal Adenocarcinoma with Hepatic Metastases. Genes (Basel) 2023; 14:1577. [PMID: 37628628 PMCID: PMC10454474 DOI: 10.3390/genes14081577] [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: 06/16/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive and lethal forms of cancer. The symptoms appear in advanced stages, and diagnostic and prognostic tests for the early detection of PDAC and disease evolution are not available. The dysregulation of microRNAs (miRNAs) has been associated with cancer development and progression, and some miRNAs have been reported to promote specific metastasis. In this study we aimed to identify the miRNAs dysregulated in PDAC tumoral tissues and a subset of miRNAs associated with tumoral characteristics, mainly metastasis presence and site. For this, the expression of 84 miRNAs was evaluated by qPCR in 30 tumoral tissues and 16 samples of non-tumoral pancreatic tissues. The comparison revealed 32 dysregulated miRNAs (19 upregulated and 13 downregulated) in the PDAC group. Reactome pathway over-representation analysis revealed that these miRNAs are involved in several biological pathways, including "ESR-mediated signaling", "PIP3 activates AKT signaling", and "Regulation of PTEN", among others. Moreover, our study identified an upregulation of miR-15b-5p and miR-20b-5p in the tumoral tissues of patients with hepatic metastasis, outlining these miRNAs as potential markers for hepatic metastasis. No significant difference in miRNA expression was observed in relation to anatomic location, lymphovascular invasion, lung metastasis, and the presence of diabetes.
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Affiliation(s)
- Maria Dobre
- Victor Babes National Institute of Pathology, 050096 Bucharest, Romania; (M.D.); (A.M.N.); (M.E.H.)
| | - Radu Cristian Poenaru
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (R.C.P.); (C.V.)
| | - Andrei Marian Niculae
- Victor Babes National Institute of Pathology, 050096 Bucharest, Romania; (M.D.); (A.M.N.); (M.E.H.)
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (R.C.P.); (C.V.)
| | - Catalina Vladut
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (R.C.P.); (C.V.)
- Department of Gastroenterology, “Prof. Dr. Agrippa Ionescu” Clinical Emergency Hospital, 011356 Bucharest, Romania
| | - Vlad Herlea
- Fundeni Clinical Institute, 022328 Bucharest, Romania;
| | - Elena Milanesi
- Victor Babes National Institute of Pathology, 050096 Bucharest, Romania; (M.D.); (A.M.N.); (M.E.H.)
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (R.C.P.); (C.V.)
| | - Mihail Eugen Hinescu
- Victor Babes National Institute of Pathology, 050096 Bucharest, Romania; (M.D.); (A.M.N.); (M.E.H.)
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (R.C.P.); (C.V.)
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6
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El-Mahdy HA, Mohamadin AM, Abulsoud AI, Khidr EG, El-Husseiny AA, Ismail A, Elsakka EGE, Mokhlis HA, El-Husseiny HM, Doghish AS. miRNAs as potential game-changers in head and neck cancer: Future clinical and medicinal uses. Pathol Res Pract 2023; 245:154457. [PMID: 37058745 DOI: 10.1016/j.prp.2023.154457] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/06/2023] [Accepted: 04/07/2023] [Indexed: 04/16/2023]
Abstract
Head and neck cancers (HNCs) are a group of heterogeneous tumors formed most frequently from epithelial cells of the larynx, lips, oropharynx, nasopharynx, and mouth. Numerous epigenetic components, including miRNAs, have been demonstrated to have an impact on HNCs characteristics like progression, angiogenesis, initiation, and resistance to therapeutic interventions. The miRNAs may control the production of numerous genes linked to HNCs pathogenesis. The roles that miRNAs play in angiogenesis, invasion, metastasis, cell cycle, proliferation, and apoptosis are responsible for this impact. The miRNAs also have an impact on crucial HNCs-related mechanistic networks like the WNT/β-catenin signaling, PTEN/Akt/mTOR pathway, TGFβ, and KRAS mutations. miRNAs may affect how the HNCs respond to treatments like radiation and chemotherapy in addition to pathophysiology. This review aims to demonstrate the relationship between miRNAs and HNCs with a particular emphasis on how miRNAs impact HNCs signaling networks.
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Affiliation(s)
- Hesham A El-Mahdy
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr, Cairo 11231, Egypt.
| | - Ahmed M Mohamadin
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr, Cairo 11231, Egypt
| | - Ahmed I Abulsoud
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr, Cairo 11231, Egypt; Department of Biochemistry and Biotechnology, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Emad Gamil Khidr
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr, Cairo 11231, Egypt
| | - Ahmed A El-Husseiny
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr, Cairo 11231, Egypt; Department of Biochemistry, Faculty of Pharmacy, Egyptian Russian University, Badr, Cairo 11829, Egypt
| | - Ahmed Ismail
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr, Cairo 11231, Egypt
| | - Elsayed G E Elsakka
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr, Cairo 11231, Egypt
| | - Hamada Ahmed Mokhlis
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Nasr, Cairo 11231, Egypt
| | - Hussein M El-Husseiny
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai Cho, Fuchu-shi, Tokyo 183-8509, Japan; Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Al Qalyubia 13736, Egypt
| | - Ahmed S Doghish
- Department of Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr, Cairo 11829, Egypt; Faculty of Pharmacy (Boys), Al-Azhar University, Nasr, Cairo 11231, Egypt.
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7
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Pandey P, Suyal G, Pasbola K, Sharma R. NGS-based profiling identifies miRNAs and pathways dysregulated in cisplatin-resistant esophageal cancer cells. Funct Integr Genomics 2023; 23:111. [PMID: 36995552 DOI: 10.1007/s10142-023-01041-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/16/2023] [Accepted: 03/24/2023] [Indexed: 03/31/2023]
Abstract
Esophageal cancer (EC) incidence remains to be on a global rise supported by an unchanged recurrence and 5-year survival rate owing to the development of chemoresistance. Resistance to cisplatin, one of the majorly used chemotherapeutic drugs in EC, is a major nuisance. This study sheds light on miRNA dysregulation and its inverse relation with dysregulated mRNAs to guide pathways into the manifestation of cisplatin resistance in EC. A cisplatin-resistant version of an EC cell line was established and comparative profiling by NGS with the parental cell line was employed to identify dysregulation in miRNA and mRNA levels. Protein-protein interaction network analysis was done using Cytoscape, followed by Funrich pathway analysis. Furthermore, selective significant miRNAs were validated using qRT-PCR. miRNA-mRNA integrated analysis was carried out using the Ingenuity Pathway Analysis (IPA) tool. Expression of various established resistance markers supported the successful establishment of cisplatin-resistant cell line. Whole-cell small RNA sequencing and transcriptome sequencing identified 261 miRNAs and 1892 genes to be significantly differentially expressed (DE), respectively. Pathway analysis indicated enrichment of EMT signaling, supported by NOTCH, mTOR, TNF receptor, and PI3K-mediated AKT signaling pathways, in chemoresistant cells. Validation by qRT-PCR confirmed upregulation of miR-10a-5p, miR-618, miR-99a-5p, and miR-935 and downregulation of miR-335-3p, miR-205-5p, miR-944, miR-130a-3p, and miR-429 in resistant cells. Pathway analysis that followed IPA analysis indicated that the dysregulation of these miRNAs and their target genes may be instrumental in the development and regulation of chemoresistance via p53 signaling, xenobiotic metabolism, and NRF2-mediated oxidative stress. This study concludes the interplay between miRNA and mRNA as an important aspect and occurrence in guiding the regulation, acquisition, and maintenance of chemoresistance in esophageal cancer in vitro.
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Affiliation(s)
- Prerna Pandey
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Delhi, India
| | - Geetika Suyal
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Delhi, India
- Zonal Technology Management & Business Planning and Development Unit (ZTM & BPD Unit), Indian Council of Agricultural Research- Indian Agricultural Research Institute (ICAR-IARI), Pusa, New Delhi, India
| | - Kiran Pasbola
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Delhi, India
| | - Rinu Sharma
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Delhi, India.
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8
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Duan X, Luo M, Li J, Shen Z, Xie K. Overcoming therapeutic resistance to platinum-based drugs by targeting Epithelial–Mesenchymal transition. Front Oncol 2022; 12:1008027. [PMID: 36313710 PMCID: PMC9614084 DOI: 10.3389/fonc.2022.1008027] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 09/23/2022] [Indexed: 11/30/2022] Open
Abstract
Platinum-based drugs (PBDs), including cisplatin, carboplatin, and oxaliplatin, have been widely used in clinical practice as mainstay treatments for various types of cancer. Although there is firm evidence of notable achievements with PBDs in the management of cancers, the acquisition of resistance to these agents is still a major challenge to efforts at cure. The introduction of the epithelial-mesenchymal transition (EMT) concept, a critical process during embryonic morphogenesis and carcinoma progression, has offered a mechanistic explanation for the phenotypic switch of cancer cells upon PBD exposure. Accumulating evidence has suggested that carcinoma cells can enter a resistant state via induction of the EMT. In this review, we discussed the underlying mechanism of PBD-induced EMT and the current understanding of its role in cancer drug resistance, with emphasis on how this novel knowledge can be exploited to overcome PBD resistance via EMT-targeted compounds, especially those under clinical trials.
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Affiliation(s)
- Xirui Duan
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Maochao Luo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Jian Li
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Zhisen Shen
- Department of Otorhinolaryngology and Head and Neck Surgery, The Affiliated Lihuili Hospital, Ningbo University, Ningbo, China
- *Correspondence: Ke Xie, ; Zhisen Shen,
| | - Ke Xie
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- *Correspondence: Ke Xie, ; Zhisen Shen,
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9
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Proliferation, Metastasis, and Radiosensitivity of Nasopharyngeal Carcinoma Cells in the Expression and Effect of Kiwifruit Extract through the Regulation of miR-205-5p. JOURNAL OF ONCOLOGY 2022; 2022:6925772. [PMID: 35990993 PMCID: PMC9388297 DOI: 10.1155/2022/6925772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 11/17/2022]
Abstract
Background Radix Actinidiae extract (RAE) has been shown to inhibit cancer in many studies, but its potential mechanism in nasopharyngeal cancer (NPC) progression remains unclear. Methods NPC cells (SUNE1) were treated with different doses of RAE. For transfection, SUNE1 cells were transfected with the microRNA (miR)-205-5p inhibitor (anti-miR-205-5p) or mimic followed by treatment with 200 μg/mL RAE for 24 h. The MTT assay and colony formation assay were used to detect cell proliferation and radiosensitivity. The transwell assay was used to detect cell migration and invasion. The expression of miR-205-5p was detected by quantitative real-time PCR. The protein expression levels of matrix metalloproteinase-2 (MMP2) and matrix metalloproteinase-9 (MMP9) were detected by western blot analysis. Results RAE inhibited NPC cell proliferation, migration, and invasion, while it enhanced radiosensitivity (P < 0.05). Also, RAE treatment decreased miR-205-5p expression, as well as MMP2 and MMP9 protein levels (P < 0.05). Anti-miR-205-5p transfection enhanced the effects of RAE on NPC cell proliferation, migration, invasion, and radiosensitivity (P < 0.05), while miR-205-5p mimic transfection had an opposite effect (P < 0.05). Conclusion RAE might decrease miR-205-5p, thereby it inhibited NPC cell proliferation and metastasis and enhanced radiosensitivity.
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10
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Li HL, Deng NH, He XS, Li YH. Small biomarkers with massive impacts: PI3K/AKT/mTOR signalling and microRNA crosstalk regulate nasopharyngeal carcinoma. Biomark Res 2022; 10:52. [PMID: 35883139 PMCID: PMC9327212 DOI: 10.1186/s40364-022-00397-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 07/06/2022] [Indexed: 12/15/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is one of the most common malignant tumours of the head and neck in Southeast Asia and southern China. The Phosphatidylinositol 3-kinase/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signalling pathway is involved in processes related to tumour initiation/progression, such as proliferation, apoptosis, metastasis, and drug resistance, and is closely related to the clinicopathological features of NPC. In addition, key genes involved in the PI3K/AKT/mTOR signalling pathway undergo many changes in NPC. More interestingly, a growing body of evidence suggests an interaction between this signalling pathway and microRNAs (miRNAs), a class of small noncoding RNAs. Therefore, in this review, we discuss the interactions between key components of the PI3K/AKT/mTOR signalling pathway and various miRNAs and their importance in NPC pathology and explore potential diagnostic biomarkers and therapeutic targets.
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Affiliation(s)
- Hai-Long Li
- Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Cancer Research Institute of Medical College, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, P.R. China
| | - Nian-Hua Deng
- Key Lab for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, P.R. China
| | - Xiu-Sheng He
- Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Cancer Research Institute of Medical College, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, P.R. China.
| | - Yue-Hua Li
- Department of Medical Oncology, The First Affiliated Hospital, Hengyang Medical School, University of South China, 421001, Hengyang, P.R. China.
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11
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Yang W, Tan S, Yang L, Chen X, Yang R, Oyang L, Lin J, Xia L, Wu N, Han Y, Tang Y, Su M, Luo X, Yang Y, Huang L, Hu Z, Tao Y, Liu L, Jin Y, Wang H, Liao Q, Zhou Y. Exosomal miR-205-5p enhances angiogenesis and nasopharyngeal carcinoma metastasis by targeting desmocollin-2. Mol Ther Oncolytics 2022; 24:612-623. [PMID: 35284624 PMCID: PMC8892032 DOI: 10.1016/j.omto.2022.02.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 02/03/2022] [Indexed: 12/18/2022] Open
Abstract
The aim of this study was to investigate whether and how exosomal miR-205-5p regulated angiogenesis and nasopharyngeal carcinoma (NPC) metastasis. We found that up-regulated serum exosomal miR-205-5p levels were associated with NPC progression and worse overall survival of NPC patients. miR-205-5p over-expression significantly increased tube formation, wound healing, migration and invasion of NPC cells, and lung metastasis of NPC tumors, whereas miR-205-5p inhibition had opposite effects. Exosomal miR-205-5p from NPC cells promoted the migration, tube formation, and microvessel density (MVD) of HUVECs in vitro and in vivo. Furthermore, bioinformatics-, luciferase reporter-, and biotinylated miR-205-5p-based pull-down assays indicated that miR-205-5p directly bound to the 3′ UTR of desmocollin-2 (DSC2). Exosomal miR-205-5p targeted DSC2 to enhance the EGFR/ERK signaling and MMP2/MMP9 expression, promoting angiogenesis and NPC metastasis, which was abrogated by DSC2 over-expression. Finally, the levels of miR-205-5p transcripts were positively correlated with MVD but negatively with DSC2 expression in NPC tissues, and patients with miR-205high/DSC2low NPC had worse overall survival. In conclusion, exosomal miR-205-5p promotes angiogenesis and NPC metastasis by targeting DSC2 to enhance EGFR/ERK signaling and MMP expression. This exosomal/miR-205-5p/EGFR/ERK axis may be a new therapeutic target for intervention of NPC metastasis.
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Affiliation(s)
- Wenjuan Yang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Shiming Tan
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Lixia Yang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Xiaohui Chen
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China.,University of South China, West Changsheng Road, Hengyang 421001, Hunan, China
| | - Ruiqian Yang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China.,University of South China, West Changsheng Road, Hengyang 421001, Hunan, China
| | - Linda Oyang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Jinguan Lin
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Longzheng Xia
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Nayiyuan Wu
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Yaqian Han
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Yanyan Tang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Min Su
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Xia Luo
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Yiqing Yang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Lisheng Huang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Zifan Hu
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Yi Tao
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Lin Liu
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Yi Jin
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Hui Wang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China.,Hunan Key Laboratory of Translational Radiation Oncology, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Qianjin Liao
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China.,Hunan Key Laboratory of Translational Radiation Oncology, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Yujuan Zhou
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha 410013, Hunan, China.,Hunan Key Laboratory of Translational Radiation Oncology, 283 Tongzipo Road, Changsha 410013, Hunan, China
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12
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Naakka E, Barros-Filho MC, Adnan-Awad S, Al-Samadi A, Marchi FA, Kuasne H, Korelin K, Suleymanova I, Brown AL, Scapulatempo-Neto C, Lourenço SV, Castilho RM, Kowalski LP, Mäkitie A, Araújo VC, Leivo I, Rogatto SR, Salo T, Passador-Santos F. miR-22 and miR-205 Drive Tumor Aggressiveness of Mucoepidermoid Carcinomas of Salivary Glands. Front Oncol 2022; 11:786150. [PMID: 35223452 PMCID: PMC8864291 DOI: 10.3389/fonc.2021.786150] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/31/2021] [Indexed: 11/26/2022] Open
Abstract
Objectives To integrate mRNA and miRNA expression profiles of mucoepidermoid carcinomas (MECs) and normal salivary gland (NSGs) tissue samples and identify potential drivers. Material and Methods Gene and miRNA expression arrays were performed in 35 MECs and six NSGs. Results We found 46 differentially expressed (DE) miRNAs and 3,162 DE mRNAs. Supervised hierarchical clustering analysis of the DE transcripts revealed two clusters in both miRNA and mRNA profiles, which distinguished MEC from NSG samples. The integrative miRNA-mRNA analysis revealed a network comprising 696 negatively correlated interactions (44 miRNAs and 444 mRNAs) involving cell signaling, cell cycle, and cancer-related pathways. Increased expression levels of miR-205-5p and miR-224-5p and decreased expression levels of miR-139-3p, miR-145-3p, miR-148a-3p, miR-186-5p, miR-338-3p, miR-363-3p, and miR-4324 were significantly related to worse overall survival in MEC patients. Two overexpressed miRNAs in MEC (miR-22 and miR-205) were selected for inhibition by the CRISPR-Cas9 method. Cell viability, migration, and invasion assays were performed using an intermediate grade MEC cell line. Knockout of miR-205 reduced cell viability and enhanced ZEB2 expression, while miR-22 knockout reduced cell migration and invasion and enhanced ESR1 expression. Our results indicate a distinct transcriptomic profile of MEC compared to NSG, and the integrative analysis highlighted miRNA-mRNA interactions involving cancer-related pathways, including PTEN and PI3K/AKT. Conclusion The in vitro functional studies revealed that miR-22 and miR-205 deficiencies reduced the viability, migration, and invasion of the MEC cells suggesting they are potential oncogenic drivers in MEC.
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Affiliation(s)
- Erika Naakka
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program (TRIMM), University of Helsinki, Helsinki, Finland
| | | | - Shady Adnan-Awad
- Translational Immunology Research Program (TRIMM), University of Helsinki, Helsinki, Finland.,Hematology Research Unit, Department of Clinical Chemistry and Hematology, University of Helsinki, Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland
| | - Ahmed Al-Samadi
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program (TRIMM), University of Helsinki, Helsinki, Finland
| | | | - Hellen Kuasne
- Centro Internacional de Pesquisa (CIPE) - A.C.Camargo Cancer Center, São Paulo, Brazil
| | - Katja Korelin
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program (TRIMM), University of Helsinki, Helsinki, Finland
| | - Ilida Suleymanova
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program (TRIMM), University of Helsinki, Helsinki, Finland
| | - Amy Louise Brown
- Department of Oral Pathology, Faculdade São Leopoldo Mandic, Campinas, Brazil
| | | | - Silvia Vanessa Lourenço
- Department of Pathology, A.C.Camargo Cancer Center, São Paulo, Brazil.,Department of General Pathology, Dental School, University of São Paulo, São Paulo, Brazil
| | - Rogério Moraes Castilho
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery and Otorhinolaryngology, A.C.Camargo Cancer Center, São Paulo, Brazil.,Department of Head and Neck Surgery, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Antti Mäkitie
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Division of Ear, Nose and Throat Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institute and Karolinska Hospital, Stockholm, Sweden
| | | | - Ilmo Leivo
- Institute of Biomedicine, Pathology, University of Turku and Turku University Hospital, Turku, Finland
| | - Silvia Regina Rogatto
- Department of Clinical Genetics, University Hospital of Southern Denmark, Vejle, Denmark.,Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Tuula Salo
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program (TRIMM), University of Helsinki, Helsinki, Finland.,Department of Pathology, Helsinki University Hospital, Helsinki, Finland.,Cancer and Translational Medicine Research Unit, University of Oulu, Oulu, Finland.,Medical Research Center, Oulu University Hospital, Oulu, Finland
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13
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Wang D, Cui L, Yang Q, Wang J. Circular RNA circZFPM2 promotes epithelial-mesenchymal transition in endometriosis by regulating miR-205-5p/ZEB1 signalling pathway. Cell Signal 2021; 87:110145. [PMID: 34517087 DOI: 10.1016/j.cellsig.2021.110145] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/20/2021] [Accepted: 09/07/2021] [Indexed: 12/27/2022]
Abstract
Endometriosis is a debilitating gynecological disease affecting millions of women worldwide, but its exact pathogenesis remains unclear. Circular RNAs (circRNAs) have been demonstrated to be important regulators in multiple diseases. Nonetheless, the potential regulatory mechanism of aberrant circRNA expression in endometriosis has been elusive. The up-regulated circZFPM2 in ectopic endometrial tissues was previously screened by circRNA high-throughput sequencing and was furtherly validated by quantitative real time reverse transcriptase polymerase chain reaction (RT-qPCR). Overexpression of circZFPM2 promoted the proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) in Ishikawa and End1/E6E7 cells, whereas silencing circZFPM2 produced the opposite effect. Luciferase reporter assays validated that circZFPM2 could directly target miR-205-5p and miR-205-5p target ZEB1. RT-qPCR results showed that miR-205-5p was underexpressed while ZEB1 was overexpressed in ectopic endometrial tissues compared with their expression in eutopic endometria and non-endometriosis control endometria. The expression level of miR-205-5p was inversely proportional and that of ZEB1 was directly proportional with the proliferative, migrative, and invasive ability of endometrial cells. Further in vitro investigation indicated that miR-205-5p could inhibit EMT by targeting ZEB1. Subsequent rescue experiments confirmed that circZFPM2 could induce EMT and promote cell proliferation, migration, and invasion cascades through the miR-205-5p /ZEB1 signaling pathway. Conclusively, circZFPM2 may present a promising biomarker in the diagnosis and treatment of endometriosis.
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Affiliation(s)
- Dandan Wang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China
| | - Liangyi Cui
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China
| | - Qing Yang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China.
| | - Jiao Wang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China.
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14
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HNRNPU-AS1 regulates cell proliferation and apoptosis via miR-205-5p/AXIN2 axis and Wnt/β-catenin signaling pathway in cervical cancer. Mol Cell Biol 2021; 41:e0011521. [PMID: 34309414 DOI: 10.1128/mcb.00115-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have key functions in modulating cervical cancer (CC) genesis and progression. This work focused on exploring lncRNA HNRNPU-AS1's function in CC and the underlying mechanism. HNRNPU-AS1, AXIN2 and miR-205-5p levels in CC cases were measured through RT-qPCR. Relationship between miR-205-5p and AXIN2 or HNRNPU-AS1 was validated through dual-luciferase assay. Cell proliferation was examined by CCK-8, while cell apoptosis by colony formation and flow cytometry analysis. HNRNPU-AS1 expression loss could be observed in CC patients and cell lines, which predicted the dismal prognosis of CC cases. Moreover, it was identified that the miR-205-5p level was up-regulated, which acted as an inhibitory target of HNRNPU-AS1 and AXIN2. HNRNPU-AS1 inhibited cell proliferation and promoted apoptosis. As revealed by Kaplan-Meier curve, CC cases showing low HNRNPU-AS1, high miR-205-5p, and low AXIN2 levels had the poorest prognosis. AXIN2 reversed the CC cell proliferation-promoting, apoptosis-inhibiting and Wnt/β-catenin signaling-activating mediated by miR-205-5p or HNRNPU-AS1 knockout. In conclusion, the overexpression of lncRNA HNRNPU-AS1 suppressed CC progression by inhibiting Wnt/β-catenin pathway through miR-205-5p/AXIN2 axis.
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15
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MicroRNAs in Epithelial-Mesenchymal Transition Process of Cancer: Potential Targets for Chemotherapy. Int J Mol Sci 2021; 22:ijms22147526. [PMID: 34299149 PMCID: PMC8305963 DOI: 10.3390/ijms22147526] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/07/2021] [Accepted: 07/10/2021] [Indexed: 12/12/2022] Open
Abstract
In the last decades, a kind of small non-coding RNA molecules, called as microRNAs, has been applied as negative regulators in various types of cancer treatment through down-regulation of their targets. More recent studies exert that microRNAs play a critical role in the EMT process of cancer, promoting or inhibiting EMT progression. Interestingly, accumulating evidence suggests that pure compounds from natural plants could modulate deregulated microRNAs to inhibit EMT, resulting in the inhibition of cancer development. This small essay is on the purpose of demonstrating the significance and function of microRNAs in the EMT process as oncogenes and tumor suppressor genes according to studies mainly conducted in the last four years, providing evidence of efficient target therapy. The review also summarizes the drug candidates with the ability to restrain EMT in cancer through microRNA regulation.
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16
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Jiang L, Zhang Y, Li B, Kang M, Yang Z, Lin C, Hu K, Wei Z, Xu M, Mi J, Wang R, Wu F. miRNAs derived from circulating small extracellular vesicles as diagnostic biomarkers for nasopharyngeal carcinoma. Cancer Sci 2021; 112:2393-2404. [PMID: 33728743 PMCID: PMC8177774 DOI: 10.1111/cas.14883] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 03/08/2021] [Accepted: 03/11/2021] [Indexed: 12/13/2022] Open
Abstract
The microRNAs (miRNAs) in circulating small extracellular vesicles (sEVs) have been suggested as potential biomarkers in cancer diagnosis. This study was designed to evaluate the circulating sEV‐derived miRNAs as biomarkers for the diagnosis of nasopharyngeal carcinoma (NPC). We compared the miRNA profiles in plasma‐derived sEVs between 16 patients with NPC and 5 healthy controls (HCs). A distinct set of miRNAs that were differentially expressed between patients with NPC and HCs was determined by means of integrative bioinformatics approaches. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment pathway analysis revealed that the target genes of the differentially expressed miRNAs (DEMs) were mainly involved in cancer‐associated signaling pathways. Seven representative DEMs were selected and further validated in an additional 60 patients with NPC and 40 HCs using quantitative reverse‐transcription PCR analysis (qRT‐PCR). Receiver operating characteristic (ROC) curve analysis was used to assess the accuracy of the sEV‐miRNA‐based model for diagnosis. The 3 miRNA‐based model, comprising miR‐134‐5p, miR‐205‐5p, and miR‐409‐3p, showed good discriminating power with an area under the curve (AUC) value of 0.88 in the training set and 0.91 in the validation set. Furthermore, the diagnostic model had an excellent classification ability to distinguish patients with NPC at different clinical stages or Epstein‐Barr virus infection status from HCs. In conclusion, our findings indicated that sEV‐derived miRNA levels were altered in the plasma of patients with NPC in comparison with those in HCs. The model based on the 3 sEV‐derived miRNAs could potentially act as an alternative or complementary approach for diagnosing NPC. This study was designed to evaluate circulating sEV‐derived miRNAs as biomarkers for the diagnosis of nasopharyngeal carcinoma (NPC). Our findings indicated that sEV‐derived miRNA levels were altered in the plasma of patients with NPC compared with those in HCs. The model based on the 3 sEV‐derived miRNAs could potentially act as an alternative or complementary approach for diagnosing NPC. ![]()
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Affiliation(s)
- Li Jiang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yong Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Bo Li
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Min Kang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhendong Yang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Chunyu Lin
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Kai Hu
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhuxin Wei
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Meng Xu
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jinglin Mi
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Rensheng Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Fang Wu
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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17
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Yuan F, Lou Z, Zhou Z, Yan X. Long non‑coding RNA KCNQ1OT1 promotes nasopharyngeal carcinoma cell cisplatin resistance via the miR‑454/USP47 axis. Int J Mol Med 2021; 47:54. [PMID: 33576460 PMCID: PMC7895519 DOI: 10.3892/ijmm.2021.4887] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 01/11/2021] [Indexed: 12/17/2022] Open
Abstract
Long non‑coding RNAs serve an essential role in drug resistance in various types of cancer, including lung, breast and bladder cancer. The present study aimed to investigate whether KCNQ1 opposite strand/antisense transcript 1 (KCNQ1OT1) was associated with cisplatin (DDP) resistance in nasopharyngeal carcinoma (NPC). KCNQ1OT1, microRNA (miR)‑454 and ubiquitin specific peptidase 47 (USP47) expression levels were measured via reverse transcription‑quantitative PCR. 5‑8F/DDP and SUNE‑1/DDP cell viability and chemosensitivity were assessed by performing Cell Counting Kit‑8 assays. Colony forming and Transwell assays were conducted to assess the effect of the KCNQ1OT1/miR‑454/USP47 axis on DDP resistance in NPC cells. The association between miR‑454 and KCNQ1OT1 or USP47 was verified via bioinformatics analysis, dual‑luciferase reporter assays and RIP assays. KCNQ1OT1 and USP47 expression levels were significantly upregulated, whereas miR‑454 expression levels were significantly downregulated in DDP‑resistant NPC cells compared with parental NPC cells. KCNQ1OT1 knockdown promoted chemosensitivity in DDP‑resistant NPC cells (5‑8F/DDP and SUNE‑1/DDP), as indicated by significantly decreased cell proliferation, migration and invasion in the short hairpin RNA (sh)KCNQ1OT1 group compared with the sh‑negative control (NC) group. Moreover, miR‑454 was identified as a target of KCNQ1OT1. KCNQ1OT1 overexpression significantly reversed miR‑454 overexpression‑mediated effects on NPC cell viability and DDP resistance. Furthermore, the results indicated that miR‑454 directly targeted USP47. Compared with the shNC group, USP47 knockdown significantly suppressed NPC cell viability and DDP resistance, which was significantly reversed by co‑transfection with miR‑454 inhibitor. Furthermore, compared with the shNC group, KCNQ1OT1 knockdown significantly downregulated USP47 expression, which was significantly counteracted by miR‑454 knockdown. Collectively, the results of the present study indicated that KCNQ1OT1 enhanced DDP resistance in NPC cells via the miR‑454/USP47 axis, suggesting a potential therapeutic target for patients with DDP‑resistant NPC.
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Affiliation(s)
- Feng Yuan
- Department of Otolaryngology, Zhuji Hospital Affiliated to Shaoxing College of Arts and Sciences, Zhuji, Zhejiang 311800, P.R. China
| | - Zhiping Lou
- Department of Otolaryngology, Zhuji Hospital Affiliated to Shaoxing College of Arts and Sciences, Zhuji, Zhejiang 311800, P.R. China
| | - Zhifeng Zhou
- Department of Otolaryngology, Zhuji Central Hospital, Zhuji, Zhejiang 311800, P.R. China
| | - Xiaojun Yan
- Department of Otorhinolaryngology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
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18
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Han H, Xu X. MiR-205 Promotes the Viability, Migration, and Tube Formation of Cervical Cancer Cells In Vitro by Targeting GATA3. Cancer Biother Radiopharm 2021; 37:779-791. [PMID: 33784470 DOI: 10.1089/cbr.2020.4184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: Both microRNA (miR)-205 and GATA Binding Protein 3 (GATA3) were involved in cervical cancer (CC), yet their correlation remained poorly understood. The authors' study aimed to unveil their correlation in CC. Materials and Methods: Clinical cervical tissue samples were collected. Survival rates of CC patients with high or low miR-205 and GATA3 expressions were analyzed using Kaplan-Meier curve. CC cell viability, migration, and tube formation were measured by cell counting kit-8 assay, scratch assay, and tube formation assay, respectively. The potential binding sites between miR-205 and GATA3 were predicted by TargetScan, and confirmed with dual-luciferase reporter assay. Relative expressions of miR-205, GATA3, vascular endothelial growth factor, E-cadherin, N-cadherin, and vimentin were quantified with quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot as needed. Results: MiR-205 was increased, yet GATA3 was decreased in CC, indicating that they were negatively correlated. Upregulating miR-205 increased miR-205 expression and CC cell viability and promoted migration and tube formation, yet decreased GATA3 expression, while downregulating miR-205 exerted the opposite effects. GATA3 was the target gene of miR-205, and reversed the effect of miR-205 on GATA3 expression and cell viability, migration, and tube formation in CC cells by reversing the effects of miR-205 on migration- and tube formation-related protein expressions. Conclusion: MiR-205 promotes CC cell viability, migration, and tube formation in vitro by targeting GATA3, providing new evidence for the implication of miR-205 in CC and a possible therapeutic method for CC. Clinical Trial Registration number: ZLK-20181103-01.
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Affiliation(s)
- Hua Han
- Department of Gynaecology, The First People's Hospital of Fuyang, Hangzhou, China
| | - Xiaofeng Xu
- Department Gynaecology and Obstetrics, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China
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19
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Huang Y, Miao H, Xia C, Feng H, Xu S, Liang Z, Wang Y, Zhao C, Qin G, Ou X, Zhao F. High VCAM-1 Predicts Poor Prognosis and is Associated with Chemotherapy Resistance in Nasopharyngeal Carcinoma. Onco Targets Ther 2021; 14:1633-1641. [PMID: 33688210 PMCID: PMC7936694 DOI: 10.2147/ott.s292259] [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: 11/15/2020] [Accepted: 02/16/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Nasopharyngeal carcinoma (NPC) is a malignant tumor endemic in southern China and Southeast Asia with a poor prognosis. Vascular cell adhesion protein 1 (VCAM-1) is highly expressed in NPC; however, it is unclear whether VCAM-1 is correlated with chemotherapy resistance and prognosis in NPC. Patients and Methods To further explore the role of VCAM-1 in chemotherapy resistance and prognosis in NPC, we examined the expression of VCAM-1, the sensitivity of chemotherapy drugs, and clinical follow-up data from 73 patients with NPC. Then, the results of VCAM-1 expression were analyzed in response to chemotherapy drugs, progression-free survival (PFS), and overall survival (OS). Results The expression of VCAM-1 protein in NPC was significantly higher than that in chronic inflammatory tissue. No significant differences in the expression of VCAM-1 among gender, age, pathologic classification, tumor classification, lymph node status, metastasis status, and overall clinical stage were found. The periods of PFS and OS in patients with high VCAM-1 expression were significantly shorter than those in patients with low VCAM-1 expression. The sensitivity rates of NPC to eight chemotherapy drugs were different; carboplatin and docetaxel showed the highest chemotherapy sensitivity and resistance rates, respectively. The resistance rates to paclitaxel were different between the patients with high VCAM-1 expression and those with low VCAM-1 expression. Conclusion Our data indicated that VCAM-1 was highly expressed in NPC. Patients with high VCAM-1 expression were more prone to shorter periods of PFS and OS. VCAM-1 could be a prognostic marker of NPC patients. The detection of VCAM-1 expression in NPC may be valuable for chemotherapy drug evaluation and management of patients with NPC in the clinic.
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Affiliation(s)
- Yu Huang
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Hongbin Miao
- Department of Otolaryngology-Head and Neck Surgery, The People's Hospital of Bishan District, Chongqing Medical University, Bishan, 402760, Chongqing, People's Republic of China
| | - Chenxi Xia
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Huajun Feng
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Shengen Xu
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Zhuoping Liang
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Yuanyuan Wang
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Chong Zhao
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Gang Qin
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Xiaoyi Ou
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Feipeng Zhao
- Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
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Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disorder affecting elderly people (>60 years old) worldwide. There is no permanent cure for the disease but the symptomatic relief can be obtained by using dopamine agonists besides L-dopa therapy. The longer use of the drugs is associated with several side effects. Hence, the researchers have made a considerable attention toward the development of neuroprotective agents from plants. A number of phytochemicals have been demonstrated for their protective effects in various in vitro, in vivo, and clinical studies. In this context, luteolin, a flavone which is present in fruits and vegetables has been attributed to a number of pharmacological properties including neuroprotective. The present review demonstrates the bioavailability, oral absorption, and mechanism of action against PD.
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Affiliation(s)
- Yasir Hasan Siddique
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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21
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Huang C, Chen Y, Lai B, Chen YX, Xu CY, Liu YF. Overexpression of SP1 restores autophagy to alleviate acute renal injury induced by ischemia-reperfusion through the miR-205/PTEN/Akt pathway. JOURNAL OF INFLAMMATION-LONDON 2021; 18:7. [PMID: 33546692 PMCID: PMC7863508 DOI: 10.1186/s12950-021-00270-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/21/2021] [Indexed: 12/30/2022]
Abstract
Background Acute kidney injury (AKI) is a major kidney disease with poor clinical outcome. SP1, a well-known transcription factor, plays a critical role in AKI and subsequent kidney repair through the regulation of various cell biologic processes. However, the underlying mechanism of SP1 in these pathological processes remain largely unknown. Methods An in vitro HK-2 cells with anoxia-reoxygenation injury model (In vitro simulated ischemic injury disease) and an in vivo rat renal ischemia-reperfusion injury model were used in this study. The expression levels of SP1, miR-205 and PTEN were detected by RT-qPCR, and the protein expression levels of SP1, p62, PTEN, AKT, p-AKT, LC3II, LC3I and Beclin-1 were assayed by western blot. Cell proliferation was assessed by MTT assay, and the cell apoptosis was detected by flow cytometry. The secretions of IL-6 and TNF-α were detected by ELISA. The targeted relationship between miR-205 and PTEN was confirmed by dual luciferase report assay. The expression and positioning of LC-3 were observed by immunofluorescence staining. TUNEL staining was used to detect cell apoptosis and immunohistochemical analysis was used to evaluate the expression of SP1 in renal tissue after ischemia-reperfusion injury in rats. Results The expression of PTEN was upregulated while SP1 and miR-205 were downregulated in renal ischemia-reperfusion injury. Overexpression of SP1 protected renal tubule cell against injury induced by ischemia-reperfusion via miR-205/PTEN/Akt pathway mediated autophagy. Overexpression of SP1 attenuated renal ischemia-reperfusion injury in rats. Conclusions SP1 overexpression restored autophagy to alleviate acute renal injury induced by ischemia-reperfusion through the miR-205/PTEN/Akt pathway.
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Affiliation(s)
- Chong Huang
- Department of Nephrology, The Second Affiliated Hospital of Nanchang University, 330006, Nanchang, Jiangxi Province, People's Republic of China
| | - Yan Chen
- Department of Nephrology, The Second Affiliated Hospital of Nanchang University, 330006, Nanchang, Jiangxi Province, People's Republic of China
| | - Bin Lai
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, 330006, Nanchang, Jiangxi Province, People's Republic of China
| | - Yan-Xia Chen
- Department of Nephrology, The Second Affiliated Hospital of Nanchang University, 330006, Nanchang, Jiangxi Province, People's Republic of China
| | - Cheng-Yun Xu
- Department of Nephrology, The Second Affiliated Hospital of Nanchang University, 330006, Nanchang, Jiangxi Province, People's Republic of China
| | - Yuan-Fei Liu
- Department of Emergency, The Second Affiliated Hospital of Nanchang University, No.1, Minde Road, 330006, Nanchang, Jiangxi Province, People's Republic of China.
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Pan G, Liu Y, Shang L, Zhou F, Yang S. EMT-associated microRNAs and their roles in cancer stemness and drug resistance. Cancer Commun (Lond) 2021; 41:199-217. [PMID: 33506604 PMCID: PMC7968884 DOI: 10.1002/cac2.12138] [Citation(s) in RCA: 172] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/30/2020] [Accepted: 01/18/2021] [Indexed: 12/15/2022] Open
Abstract
Epithelial‐to‐mesenchymal transition (EMT) is implicated in a wide array of malignant behaviors of cancers, including proliferation, invasion, and metastasis. Most notably, previou studies have indicated that both cancer stem‐like properties and drug resistance were associated with EMT. Furthermore, microRNAs (miRNAs) play a pivotal role in the regulation of EMT phenotype, as a result, some miRNAs impact cancer stemness and drug resistance. Therefore, understanding the relationship between EMT‐associated miRNAs and cancer stemness/drug resistance is beneficial to both basic research and clinical treatment. In this review, we preliminarily looked into the various roles that the EMT‐associated miRNAs play in the stem‐like nature of malignant cells. Then, we reviewed the interaction between EMT‐associated miRNAs and the drug‐resistant complex signaling pathways of multiple cancers including lung cancer, gastric cancer, gynecologic cancer, breast cancer, liver cancer, colorectal cancer, pancreatic cancer, esophageal cancer, and nasopharyngeal cancer. We finally discussed the relationship between EMT, cancer stemness, and drug resistance, as well as looked forward to the potential applications of miRNA therapy for malignant tumors.
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Affiliation(s)
- Guangtao Pan
- Department of Traditional Chinese Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, P. R. China
| | - Yuhan Liu
- Department of Traditional Chinese Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, P. R. China
| | - Luorui Shang
- Department of Traditional Chinese Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, P. R. China
| | - Fangyuan Zhou
- Department of Traditional Chinese Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, P. R. China
| | - Shenglan Yang
- Department of Traditional Chinese Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, P. R. China
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Effects of different combined regimens of cisplatin, metformin, and quercetin on nasopharyngeal carcinoma cells and subcutaneous xenografts. Sci Rep 2021; 11:1040. [PMID: 33441838 PMCID: PMC7807075 DOI: 10.1038/s41598-020-80198-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 12/15/2020] [Indexed: 12/12/2022] Open
Abstract
Cisplatin, metformin, and quercetin are all reliable anticancer drugs. However, it is unclear how effective their different combination regimens are on the growth of nasopharyngeal carcinoma cell line Sune-1 and subcutaneous xenograft in nude mice. This study evaluated the effects of single-drug, two-drug, and three-drug simultaneous or sequential combined application of these drugs on the growth of Sune-1 cells and subcutaneous xenograft tumors in nude mice. The results showed that the different combination regimens of cisplatin, metformin and quercetin all had significant inhibitory effects on the proliferation of Sune-1 cells and the growth of subcutaneous xenografts in nude mice (P < 0.01), and the inhibition rate of the three drugs simultaneous combined application was significant Higher than the two-drug combination or single-drug application (P < 0.05), the contribution level of each drug in the three-drug combination application from high to low were cisplatin > metformin > quercetin. In summary, our results indicate that the simultaneous combination of cisplatin, metformin, and quercetin may synergistically inhibit the growth of Sune-1 cells and subcutaneous xenografts in nude mice through their different anticancer mechanisms, which may be clinically refractory and provide reference for chemotherapy of patients with recurrent nasopharyngeal carcinoma.
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Zhou Z, Liu C, Liu K, Lv M, Li B, Lan Z, Chen W, Kang M. Expression and Possible Molecular Mechanisms of microRNA-205-5p in Patients With Head and Neck Squamous Cell Carcinoma. Technol Cancer Res Treat 2020; 19:1533033820980110. [PMID: 33327871 PMCID: PMC7750893 DOI: 10.1177/1533033820980110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth most prevalent malignancy worldwide, with high incidence and poor survival rates. Increased expression of microRNA-205-5p (miR-205-5p) may influence the outcomes of HNSCC, but the identities of miR-205-5p target genes and the potential signaling pathways related to HNSCC remain unclear. RT-qPCR was used to detect the expression levels of miR-205-5p in the plasma of patients with HNSCC. We also performed a meta-analysis using data from relevant literature, and the Gene Expression Omnibus (GEO) and the Cancer Genome Atlas (TCGA) databases to evaluate the expression level of miR-205-5p in HNSCC. Next, we predicted the potential miR-205-5p target genes in HNSCC. We also used Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) for enrichment analyses adapted to investigate the dynamics and possible mechanisms of miR-205-5p in HNSCC. Lastly, we predicted the potential miR-205-5p target genes by evaluating their expression level and using Spearman analysis. Expression of miR-205-5p was higher in HNSCC tissues compared to normal unafflicted tissue samples (P < 0.05), and the corresponding summary receiver operating characteristic (sROC) was 0.82.The pooled sensitivity, specificity, PLR, NLR, and DOR values were 0.78 (95% CI: 0.75-0.81), 0.67 (95% CI: 0.60-0.73), 2.34 (95% CI: 1.45-3.76), 0.34 (95% CI: 0.19-0.60), and 8.16 (95% CI: 4.01-16.64), respectively. Based on GO and KEGG analyses, we found that miR-205-5p was correlated with the progression of HNSCC through association with signaling pathways, including the drug metabolism-cytochrome P450 pathway. Analysis of the target genes revealed that flavin-containing monooxygenase isoform 2 (FMO2) and alcohol dehydrogenase 1B (ADH1B) may be important targets of miR-205-5p. In summary, miR-205-5p may have a significant role in the prognosis of HNSCC and may serve as a potential biomarker in HNSCC.
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Affiliation(s)
- Ziyan Zhou
- Department of Radiation Oncology, 117742The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,Guangxi Tumor Radiation Therapy Clinical Medical Research Center, Nanning, Guangxi, People's Republic of China
| | - Chang Liu
- 74626Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Kang Liu
- Department of Radiation Oncology, 117742The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,Guangxi Tumor Radiation Therapy Clinical Medical Research Center, Nanning, Guangxi, People's Republic of China
| | - Meixin Lv
- 74626Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Baibei Li
- 74626Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Zhenrui Lan
- 74626Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Wei Chen
- Department of Radiation Oncology, 117742The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,Guangxi Tumor Radiation Therapy Clinical Medical Research Center, Nanning, Guangxi, People's Republic of China
| | - Min Kang
- Department of Radiation Oncology, 117742The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,Guangxi Tumor Radiation Therapy Clinical Medical Research Center, Nanning, Guangxi, People's Republic of China
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Epigenetic regulation of VENTXP1 suppresses tumor proliferation via miR-205-5p/ANKRD2/NF-kB signaling in head and neck squamous cell carcinoma. Cell Death Dis 2020; 11:838. [PMID: 33037177 PMCID: PMC7547684 DOI: 10.1038/s41419-020-03057-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 09/22/2020] [Accepted: 09/24/2020] [Indexed: 02/08/2023]
Abstract
An increasing number of studies have shown that long noncoding RNAs (lncRNAs) play important roles in tumor development and progression. However, their involvement in head and neck squamous cell carcinoma (HNSCC) remains largely unknown. Epigenetic regulation is one major mechanism utilized by cancer cells to control lncRNA expression. We identified that lncRNA VENTXP1 was epigenetically silenced in multiple cancer types, and its lower expression was correlated with poorer survival in HNSCC patients. Through in silico analysis and experimental validation, we identified miR-205-5p and its direct interacting partner of VENTXP1, which regulates HNSCC cell proliferation and tumorigenicity. Using RNA-seq and differential gene expression analysis, we further identified ANKRD2 as a miR-205-5p target, which plays an essential role in modulating NF-kB signaling. These findings suggest that VENTXP1 inhibits tumor growth via suppressing miR-205-5p/ANKRD2-mediated NF-kB signaling in HNSCC. Thus, pharmaceutical targeting of DNA methylation to restore VENTXP1 expression might constitute a therapeutic strategy for HNSCC.
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Common molecular pathways targeted by nintedanib in cancer and IPF: A bioinformatic study. Pulm Pharmacol Ther 2020; 64:101941. [DOI: 10.1016/j.pupt.2020.101941] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/29/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023]
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27
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Zhang X, Zhu M, Wang H, Song Z, Zhan D, Cao W, Han Y, Jia J. Overexpression of NCAPG inhibits cardia adenocarcinoma apoptosis and promotes epithelial-mesenchymal transition through the Wnt/β-catenin signaling pathway. Gene 2020; 766:145163. [PMID: 32980450 DOI: 10.1016/j.gene.2020.145163] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/29/2020] [Accepted: 09/17/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Cardia adenocarcinoma (CA) is a distinct form of gastric cancer, and the optimal means of treating it remains controversial. At present, the role of the condensation complex gene non-SMC condensin I complex subunit G (NCAPG) in CA is uncertain, and as such the present study was designed to elucidate its importance in this oncogenic context. METHODS We first used bioinformatics approaches to assess NCAPG expression profiles in CA using public databases. Protein profiling was also used to examine the expression of this protein in CA tumors and adjacent tissues from 20 patients. Then the expression of NCAPG in CA samples was quantified via qRT-PCR and Western blotting. NCAPG knockdown and overexpression in the SGC-7901 and AGS cell lines were subsequently performed, after which the expression of key proteins associated with epithelial-mesenchymal transition (EMT; E-cadherin, vimentin, N-cadherin, Snail, Slug) and the regulation of apoptotic responses (caspase-3, Bax, Bcl-2) was measured. The mechanistic role of NCAPG in CA was additionally studied by analyzing proteins associated with Wnt/β-catenin signaling including Wnt1, phosphorylated GSK3β, β-catenin, and phosphorylated β- catenin. The impact of NCAPG on the migration, survival, and invasion of CA cells was further examined. RESULTS CA samples exhibited high NCAPG expression. When this gene was overexpressed in cell lines, it reduced caspase-3, Bax, and E-cadherin levels whereas it elevated Bcl-2, vimentin, N-cadherin, Snail, and Slug levels. NCAPG overexpression also resulted in the enhanced expression of Wnt1, phosphorylated GSK3β, and total β-catenin and the reduced expression of phosphorylated β-catenin. The knockdown of NCAPG, in contrast, yielded the opposite phenotype. At a functional level, the overexpression of NCAPG improved the apoptotic resistance of CA cells while driving them to undergo EMT and to become more invasive and migratory. CONCLUSIONS NCAPG overexpression can promote EMT and suppress tumor cell apoptosis via the activation of Wnt/β-catenin signaling.
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Affiliation(s)
- Xinxin Zhang
- Department of Surgical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Mengqi Zhu
- Department of Surgical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Hui Wang
- Department of Surgical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Zaozhi Song
- Department of Surgical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Danka Zhan
- Department of Surgical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Wenjing Cao
- Department of Infection Disease, Bengbu Medical College, Bengbu, China
| | - Yajuan Han
- Department of Medical Oncology, the First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Jianguang Jia
- Department of Surgical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China.
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Neferine sensitized Taxol-resistant nasopharygeal carcinoma to Taxol by inhibiting EMT via downregulating miR-130b-5p. Biochem Biophys Res Commun 2020; 531:573-580. [PMID: 32811645 DOI: 10.1016/j.bbrc.2020.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 08/03/2020] [Indexed: 02/07/2023]
Abstract
Taxol resistance led to the poor survival prognosis in advanced nasopharyngeal carcinoma (NPC). Epithelial-mesenchymal transition (EMT) plays an important role in tumor chemoresistance. Neferine (NEF) is found to sensitize the cancer cells to chemotherapeutic agents, but its effects and mechanisms on NPC Taxol resistance is unclear. In this study, we discovered that Taxol-resistant cell lines 5-8F/Taxol and CNE-1/Taxol had the greater ability to metastasis and the higher expression of EMT markers. Then we found that NEF could inhibit the viability and EMT process in the Taxol-resistant cell lines. Furthermore, we confirmed that NEF could augment therapeutic efficacy of Taxol on NPC Taxol-resistant cell lines. Further through Microarray based analysis, we found that miR-130b-5p was stably down-regulated after treating 5-8F/Taxol with NEF. Later we verified that up-regulation of miR-130b-5p could not only promote the EMT-related migration/invasion, but also impair the inhibition effects of NEF on the EMT-associated metastatic ability and the chemotherapy resistance to Taxol. In conclusion, our results firstly suggested that NEF may enhanced Taxol sensitivity in NPC Taxol-resistant cell lines through inhibition of EMT which mediated by miR-130b-5p downregulation in vitro and in vivo. NEF may be used as a Taxol sensitizer in chemotherapy of NPC.
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Ashrafizadeh M, Zarrabi A, Hushmandi K, Kalantari M, Mohammadinejad R, Javaheri T, Sethi G. Association of the Epithelial-Mesenchymal Transition (EMT) with Cisplatin Resistance. Int J Mol Sci 2020; 21:E4002. [PMID: 32503307 PMCID: PMC7312011 DOI: 10.3390/ijms21114002] [Citation(s) in RCA: 168] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/14/2020] [Accepted: 05/26/2020] [Indexed: 02/08/2023] Open
Abstract
Therapy resistance is a characteristic of cancer cells that significantly reduces the effectiveness of drugs. Despite the popularity of cisplatin (CP) as a chemotherapeutic agent, which is widely used in the treatment of various types of cancer, resistance of cancer cells to CP chemotherapy has been extensively observed. Among various reported mechanism(s), the epithelial-mesenchymal transition (EMT) process can significantly contribute to chemoresistance by converting the motionless epithelial cells into mobile mesenchymal cells and altering cell-cell adhesion as well as the cellular extracellular matrix, leading to invasion of tumor cells. By analyzing the impact of the different molecular pathways such as microRNAs, long non-coding RNAs, nuclear factor-κB (NF-ĸB), phosphoinositide 3-kinase-related protein kinase (PI3K)/Akt, mammalian target rapamycin (mTOR), and Wnt, which play an important role in resistance exhibited to CP therapy, we first give an introduction about the EMT mechanism and its role in drug resistance. We then focus specifically on the molecular pathways involved in drug resistance and the pharmacological strategies that can be used to mitigate this resistance. Overall, we highlight the various targeted signaling pathways that could be considered in future studies to pave the way for the inhibition of EMT-mediated resistance displayed by tumor cells in response to CP exposure.
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Affiliation(s)
- Milad Ashrafizadeh
- Department of Basic Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz 5166616471, Iran;
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul 34956, Turkey;
- Center of Excellence for Functional Surfaces and Interfaces (EFSUN), Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla, Istanbul 34956, Turkey
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran 1417414418, Iran;
- Kazerun Health Technology Incubator, Shiraz University of Medical Sciences, Shiraz 1433671348, Iran
| | - Mahshad Kalantari
- Department of Genetic Science, Tehran Medical Science Branch, Islamic Azad University, Tehran 19168931813, Iran;
| | - Reza Mohammadinejad
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman 1355576169, Iran
| | - Tahereh Javaheri
- Health Informatics Lab, Metropolitan College, Boston University, Boston, MA 02215, USA
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore;
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Jiang N, Dai Q, Su X, Fu J, Feng X, Peng J. Role of PI3K/AKT pathway in cancer: the framework of malignant behavior. Mol Biol Rep 2020; 47:4587-4629. [PMID: 32333246 PMCID: PMC7295848 DOI: 10.1007/s11033-020-05435-1] [Citation(s) in RCA: 322] [Impact Index Per Article: 80.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/03/2020] [Indexed: 12/12/2022]
Abstract
Given that the PI3K/AKT pathway has manifested its compelling influence on multiple cellular process, we further review the roles of hyperactivation of PI3K/AKT pathway in various human cancers. We state the abnormalities of PI3K/AKT pathway in different cancers, which are closely related with tumorigenesis, proliferation, growth, apoptosis, invasion, metastasis, epithelial-mesenchymal transition, stem-like phenotype, immune microenvironment and drug resistance of cancer cells. In addition, we investigated the current clinical trials of inhibitors against PI3K/AKT pathway in cancers and found that the clinical efficacy of these inhibitors as monotherapy has so far been limited despite of the promising preclinical activity, which means combinations of targeted therapy may achieve better efficacies in cancers. In short, we hope to feature PI3K/AKT pathway in cancers to the clinic and bring the new promising to patients for targeted therapies.
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Affiliation(s)
- Ningni Jiang
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Qijie Dai
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Xiaorui Su
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Jianjiang Fu
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Xuancheng Feng
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Juan Peng
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27157 USA
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Xie C, McGrath NA. TSPAN8 and distant metastasis of nasopharyngeal carcinoma cells. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:165. [PMID: 32309312 PMCID: PMC7154403 DOI: 10.21037/atm.2019.10.102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Changqing Xie
- Thoracic and GI Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nicole A McGrath
- Thoracic and GI Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Blasiak J, Watala C, Tuuminen R, Kivinen N, Koskela A, Uusitalo-Järvinen H, Tuulonen A, Winiarczyk M, Mackiewicz J, Zmorzyński S, Filip A, Kaarniranta K. Expression of VEGFA-regulating miRNAs and mortality in wet AMD. J Cell Mol Med 2019; 23:8464-8471. [PMID: 31633290 PMCID: PMC6850949 DOI: 10.1111/jcmm.14731] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 09/12/2019] [Accepted: 09/23/2019] [Indexed: 12/31/2022] Open
Abstract
MicroRNAs (miRNAs) regulate gene expression; many of them act in the retinal pigment epithelium (RPE), and RPE degeneration is known to be a critical factor in age‐related macular degeneration (AMD). Repeated injections with anti‐VEGFA (vascular endothelial growth factor A) are the only effective therapy in wet AMD. We investigated the correlation between the expression of 18 miRNAs involved in the regulation of the VEGFA gene in serum of 76 wet AMD patients and 70 controls. Efficacy of anti‐VEGFA treatment was evaluated by counting the number of injections delivered up to 12 years. In addition, we compared the relative numbers of deaths in patient with AMD and control groups. We observed a decreased expression of miR‐34‐5p, miR‐126‐3p, miR‐145‐5p and miR‐205‐5p in wet AMD patients as compared with controls. These miRNAs are involved in the regulation of angiogenesis, cytoprotection and protein clearance. No miRNA was significantly correlated with the treatment outcome. Wet AMD patients had greater mortality than controls, and their survival was inversely associated with the number of anti‐VEGFA injections per year. No association was observed between miRNA expression and mortality. Our study emphasizes the need to clarify the role of miRNA regulation in AMD pathogenesis.
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Affiliation(s)
- Janusz Blasiak
- Department of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Cezary Watala
- Department of Haemostatic Disorders, Medical University, Lodz, Poland
| | - Raimo Tuuminen
- Helsinki Retina Research Group, University of Helsinki, Helsinki, Finland.,Department of Ophthalmology, Kymenlaakso Central Hospital, Kotka, Finland
| | - Niko Kivinen
- Department of Ophthalmology, University of Eastern Finland, Kuopio, Finland
| | - Ali Koskela
- Department of Ophthalmology, University of Eastern Finland, Kuopio, Finland
| | | | - Anja Tuulonen
- Department of Ophthalmology, Tampere University Hospital, Tampere, Finland
| | - Mateusz Winiarczyk
- Department of Vitreoretinal Surgery, Medical University of Lublin, Lublin, Poland
| | - Jerzy Mackiewicz
- Department of Vitreoretinal Surgery, Medical University of Lublin, Lublin, Poland
| | - Szymon Zmorzyński
- Department of Cancer Genetics, Medical University of Lublin, Lublin, Poland
| | - Agata Filip
- Department of Cancer Genetics, Medical University of Lublin, Lublin, Poland
| | - Kai Kaarniranta
- Department of Ophthalmology, University of Eastern Finland, Kuopio, Finland.,Department of Ophthalmology, Kuopio University Hospital, Kuopio, Finland
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Multifaceted Regulation of PTEN Subcellular Distributions and Biological Functions. Cancers (Basel) 2019; 11:cancers11091247. [PMID: 31454965 PMCID: PMC6770588 DOI: 10.3390/cancers11091247] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/15/2019] [Accepted: 08/19/2019] [Indexed: 12/19/2022] Open
Abstract
Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) is a tumor suppressor gene frequently found to be inactivated in over 30% of human cancers. PTEN encodes a 54-kDa lipid phosphatase that serves as a gatekeeper of the phosphoinositide 3-kinase pathway involved in the promotion of multiple pro-tumorigenic phenotypes. Although the PTEN protein plays a pivotal role in carcinogenesis, cumulative evidence has implicated it as a key signaling molecule in several other diseases as well, such as diabetes, Alzheimer's disease, and autism spectrum disorders. This finding suggests that diverse cell types, especially differentiated cells, express PTEN. At the cellular level, PTEN is widely distributed in all subcellular compartments and organelles. Surprisingly, the cytoplasmic compartment, not the plasma membrane, is the predominant subcellular location of PTEN. More recently, the finding of a secreted 'long' isoform of PTEN and the presence of PTEN in the cell nucleus further revealed unexpected biological functions of this multifaceted molecule. At the regulatory level, PTEN activity, stability, and subcellular distribution are modulated by a fascinating array of post-translational modification events, including phosphorylation, ubiquitination, and sumoylation. Dysregulation of these regulatory mechanisms has been observed in various human diseases. In this review, we provide an up-to-date overview of the knowledge gained in the last decade on how different functional domains of PTEN regulate its biological functions, with special emphasis on its subcellular distribution. This review also highlights the findings of published studies that have reported how mutational alterations in specific PTEN domains can lead to pathogenesis in humans.
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