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Zihlif M, Hameduh T, Bulatova N, Hammad H. Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer. Biomed Rep 2023; 19:88. [PMID: 37901880 PMCID: PMC10603373 DOI: 10.3892/br.2023.1670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 09/08/2023] [Indexed: 10/31/2023] Open
Abstract
Pancreatic cancer is currently one of the least curable types of human cancer and remains a key health problem. One of the most important characteristics of pancreatic cancer is its ability to grow under hypoxic conditions. Hypoxia is associated with resistance of cancer cells to radiotherapy and chemotherapy. It is a major contributor to pancreatic cancer genetic instability, which local and systemic resistance that may result in poor clinical outcome. Accordingly, identifying gene expression changes in cancer resistance genes that occur under hypoxic conditions may identify a new therapeutic target. The aim of the present study was to explore the association between hypoxia and resistance to chemotherapy and determine the alteration in the expression of cancer resistance-related genes in the presence of hypoxia. Pancreatic cancer cells (PANC-1) were exposed to 8 h hypoxic episodes (<1% oxygen) three times/week for a total of 20 episodes (chronic hypoxia) or 72 h hypoxic episodes twice/week for a total of 10 episodes (acute hypoxia). The alterations in gene expression were examined using reverse transcription-quantitative PCR array compared with normoxic cells. Chemoresistance of hypoxic cells toward doxorubicin was assessed using MTT cell proliferation assay. Both chronic and acute hypoxia induced chemoresistance toward doxorubicin in PANC-1 pancreatic cancer cell line. The greatest changes occurred in estrogen Receptor Alpha Gene (ESR1) and ETS Like-1 protein (ELK1) pathways, in nucleic transcription factor Peroxisome proliferator-activated receptors (PPARs) and in a cell cycle inhibitor cyclin dependent kinase inhibitor 1A (CDKN1A). The present study demonstrated that exposing cells to prolonged hypoxia results in different gene expression changes involving pleotropic pathways that serve a role in inducing resistance in pancreatic cancer.
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Affiliation(s)
- Malek Zihlif
- Department of Pharmacology, School of Medicine, The University of Jordan, Amman 11942, Jordan
| | - Tareq Hameduh
- Department of Pharmacology, School of Medicine, The University of Jordan, Amman 11942, Jordan
| | - Nailya Bulatova
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman 11942, Jordan
| | - Hana Hammad
- Department of Biology, School of Science, The University of Jordan, Amman 11942, Jordan
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Li J, Tan J, Song Q, Yang X, Zhang X, Qin H, Huang G, Su X, Li J. Exosomal miR-767 from senescent endothelial-derived accelerating skin fibroblasts aging via inhibiting TAB1. J Mol Histol 2023; 54:13-24. [PMID: 36409439 PMCID: PMC9908644 DOI: 10.1007/s10735-022-10107-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 10/07/2022] [Indexed: 11/22/2022]
Abstract
Skin aging is a complicated physiological process, and microRNA-mediated regulation has been shown to contribute to this process. Exosomes mediate intercellular communication through miRNAs, mRNAs and proteins, and participate in many physiological and pathological processes. Vascular endothelial cell-derived exosomes have been confirmed to be involved in the development of many diseases, however, their effects on skin aging have not been reported. In this study, senescent endothelial cells could regulate skin fibroblast functions and promote cell senescence through exosomal pathway. miR-767 was highly expressed in senescent vascular endothelial cells and their exosomes, and miR-767 is also upregulated in skin fibroblasts after treatment with exosomes derived from senescent vascular endothelial cells. In addition, transfection with miR-767 mimic promoted senescence of skin fibroblasts, while transfection with miR-767 inhibitor reversed the effect of D-galactose. Double luciferase analysis confirmed that TAB1 was a direct target gene of miR-767. Furthermore, miR-767 expression was increased and TAB1 expression was decreased in D-galactose induced aging mice. In mice that overexpressed miR-767, HE staining showed thinning of dermis and senescence appearance. In conclusion, senescent vascular endothelial cell-derived exosome mediated miR-767 regulates skin fibroblasts through the exosome pathway. Our study reveals the role of vascular endothelial cell-derived exosomes in aging in the skin microenvironment and contributes to the discovery of new targets for delaying senescence.
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Affiliation(s)
- Jing Li
- grid.256607.00000 0004 1798 2653Department of Physiology, Guangxi Medical University, Nanning, 530000 Guangxi China
| | - Jiyong Tan
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education, Nanning, 530000 Guangxi China
| | - Qiong Song
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education, Nanning, 530000 Guangxi China
| | - Xinni Yang
- grid.256607.00000 0004 1798 2653Department of Physiology, Guangxi Medical University, Nanning, 530000 Guangxi China
| | - Xin Zhang
- grid.256607.00000 0004 1798 2653Department of Physiology, Guangxi Medical University, Nanning, 530000 Guangxi China
| | - Hao Qin
- grid.459593.7Guigang City People′s Hospital, Guigang, 537000 Guangxi China
| | - Gaoxiang Huang
- grid.256607.00000 0004 1798 2653Department of Physiology, Guangxi Medical University, Nanning, 530000 Guangxi China
| | - Xiaoxue Su
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education, Nanning, 530000 Guangxi China
| | - Jing Li
- grid.256607.00000 0004 1798 2653Department of Physiology, Guangxi Medical University, Nanning, 530000 Guangxi China ,Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education, Nanning, 530000 Guangxi China
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Cui M, Liu Y, Cheng L, Li T, Deng Y, Liu D. Research progress on anti-ovarian cancer mechanism of miRNA regulating tumor microenvironment. Front Immunol 2022; 13:1050917. [DOI: 10.3389/fimmu.2022.1050917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022] Open
Abstract
Ovarian cancer is the most deadly malignancy among women, but its complex pathogenesis is unknown. Most patients with ovarian cancer have a poor prognosis due to high recurrence rates and chemotherapy resistance as well as the lack of effective early diagnostic methods. The tumor microenvironment mainly includes extracellular matrix, CAFs, tumor angiogenesis and immune-associated cells. The interaction between tumor cells and TME plays a key role in tumorigenesis, progression, metastasis and treatment, affecting tumor progression. Therefore, it is significant to find new tumor biomarkers and therapeutic targets. MicroRNAs are non-coding RNAs that post-transcriptionally regulate the expression of target genes and affect a variety of biological processes. Studies have shown that miRNAs regulate tumor development by affecting TME. In this review, we summarize the mechanisms by which miRNAs affect ovarian cancer by regulating TME and highlight the key role of miRNAs in TME, which provides new targets and theoretical basis for ovarian cancer treatment.
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Du L, Liu Y, Li C, Deng J, Sang Y. The interaction between ETS transcription factor family members and microRNAs: A novel approach to cancer therapy. Biomed Pharmacother 2022; 150:113069. [PMID: 35658214 DOI: 10.1016/j.biopha.2022.113069] [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: 03/08/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 11/18/2022] Open
Abstract
In cancer biology, ETS transcription factors promote tumorigenesis by mediating transcriptional regulation of numerous genes via the conserved ETS DNA-binding domain. MicroRNAs (miRNAs) act as posttranscriptional regulators to regulate various tumor-promoting or tumor-suppressing factors. Interactions between ETS factors and miRNAs regulate complex tumor-promoting and tumor-suppressing networks. This review discusses the progress of ETS factors and miRNAs in cancer research in detail. We focused on characterizing the interaction of the miRNA/ETS axis with competing endogenous RNAs (ceRNAs) and its regulation in posttranslational modifications (PTMs) and the tumor microenvironment (TME). Finally, we explore the prospect of ETS factors and miRNAs in therapeutic intervention. Generally, interactions between ETS factors and miRNAs provide fresh perspectives into tumorigenesis and development and novel therapeutic approaches for malignant tumors.
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Affiliation(s)
- Liwei Du
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, The Third Affiliated Hospital of Nanchang University & The First Hospital of Nanchang, Nanchang 330008, China
| | - Yuchen Liu
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, The Third Affiliated Hospital of Nanchang University & The First Hospital of Nanchang, Nanchang 330008, China; Stomatology College of Nanchang University, Nanchang, China
| | - Chenxi Li
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, The Third Affiliated Hospital of Nanchang University & The First Hospital of Nanchang, Nanchang 330008, China
| | - Jinkuang Deng
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, The Third Affiliated Hospital of Nanchang University & The First Hospital of Nanchang, Nanchang 330008, China
| | - Yi Sang
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, The Third Affiliated Hospital of Nanchang University & The First Hospital of Nanchang, Nanchang 330008, China.
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Molnar R, Szabo L, Tomesz A, Deutsch A, Darago R, Raposa BL, Ghodratollah N, Varjas T, Nemeth B, Orsos Z, Pozsgai E, Szentpeteri JL, Budan F, Kiss I. The Chemopreventive Effects of Polyphenols and Coffee, Based upon a DMBA Mouse Model with microRNA and mTOR Gene Expression Biomarkers. Cells 2022; 11:cells11081300. [PMID: 35455979 PMCID: PMC9029301 DOI: 10.3390/cells11081300] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 12/11/2022] Open
Abstract
Polyphenols are capable of decreasing cancer risk. We examined the chemopreventive effects of a green tea (Camellia sinensis) extract, polyphenol extract (a mixture of blackberry (Rubus fruticosus), blackcurrants (Ribes nigrum), and added resveratrol phytoalexin), Chinese bayberry (Myrica rubra) extract, and a coffee (Coffea arabica) extract on 7,12-dimethylbenz[a]anthracene (DMBA) carcinogen-increased miR-134, miR-132, miR-124-1, miR-9-3, and mTOR gene expressions in the liver, spleen, and kidneys of CBA/Ca mice. The elevation was quenched significantly in the organs, except for miR-132 in the liver of the Chinese bayberry extract-consuming group, and miR-132 in the kidneys of the polyphenol-fed group. In the coffee extract-consuming group, only miR-9-3 and mTOR decreased significantly in the liver; also, miR-134 decreased significantly in the spleen, and, additionally, miR-124-1 decreased significantly in the kidney. Our results are supported by literature data, particularly the DMBA generated ROS-induced inflammatory and proliferative signal transducers, such as TNF, IL1, IL6, and NF-κB; as well as oncogenes, namely RAS and MYC. The examined chemopreventive agents, besides the obvious antioxidant and anti-inflammatory effects, mainly blocked the mentioned DMBA-activated factors and the mitogen-activated protein kinase (MAPK) as well, and, at the same time, induced PTEN as well as SIRT tumor suppressor genes.
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Affiliation(s)
- Richard Molnar
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (A.T.); (A.D.); (R.D.); (B.L.R.)
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
- Correspondence: (R.M.); (J.L.S.); (F.B.)
| | - Laszlo Szabo
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (A.T.); (A.D.); (R.D.); (B.L.R.)
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Andras Tomesz
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (A.T.); (A.D.); (R.D.); (B.L.R.)
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Arpad Deutsch
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (A.T.); (A.D.); (R.D.); (B.L.R.)
| | - Richard Darago
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (A.T.); (A.D.); (R.D.); (B.L.R.)
| | - Bence L. Raposa
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (A.T.); (A.D.); (R.D.); (B.L.R.)
| | - Nowrasteh Ghodratollah
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Timea Varjas
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Balazs Nemeth
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Zsuzsanna Orsos
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Eva Pozsgai
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Jozsef L. Szentpeteri
- Institute of Transdisciplinary Discoveries, Medical School, University of Pécs, 7624 Pécs, Hungary
- Correspondence: (R.M.); (J.L.S.); (F.B.)
| | - Ferenc Budan
- Institute of Transdisciplinary Discoveries, Medical School, University of Pécs, 7624 Pécs, Hungary
- Institute of Physiology, Medical School, University of Pécs, 7624 Pécs, Hungary
- Correspondence: (R.M.); (J.L.S.); (F.B.)
| | - Istvan Kiss
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
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Tomesz A, Szabo L, Molnar R, Deutsch A, Darago R, Raposa BL, Ghodratollah N, Varjas T, Nemeth B, Orsos Z, Pozsgai E, Szentpeteri JL, Budan F, Kiss I. Changes in miR-124-1, miR-212, miR-132, miR-134, and miR-155 Expression Patterns after 7,12-Dimethylbenz(a)anthracene Treatment in CBA/Ca Mice. Cells 2022; 11:cells11061020. [PMID: 35326471 PMCID: PMC8947631 DOI: 10.3390/cells11061020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/13/2022] [Accepted: 03/16/2022] [Indexed: 02/01/2023] Open
Abstract
Specific gene and miRNA expression patterns are potential early biomarkers of harmful environmental carcinogen exposures. The aim of our research was to develop an assay panel by using several miRNAs for the rapid screening of potential carcinogens. The expression changes of miR-124-1, miR-212, miR-132, miR-134, and miR-155 were examined in the spleen, liver, and kidneys of CBA/Ca mice, following the 20 mg/bwkg intraperitoneal 7,12-dimethylbenz(a)anthracene (DMBA) treatment. After 24 h RNA was isolated, the miRNA expressions were analyzed by a real-time polymerase chain reaction and compared to a non-treated control. DMBA induced significant changes in the expression of miR-134, miR-132, and miR-124-1 in all examined organs in female mice. Thus, miR-134, miR-132, and miR-124-1 were found to be suitable biomarkers for the rapid screening of potential chemical carcinogens and presumably to monitor the protective effects of chemopreventive agents.
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Affiliation(s)
- Andras Tomesz
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (R.M.); (A.D.); (R.D.); (B.L.R.)
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
- Correspondence: (A.T.); (J.L.S.); (F.B.); Tel.: +36-207-772-812 (J.L.S. & F.B.)
| | - Laszlo Szabo
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (R.M.); (A.D.); (R.D.); (B.L.R.)
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Richard Molnar
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (R.M.); (A.D.); (R.D.); (B.L.R.)
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Arpad Deutsch
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (R.M.); (A.D.); (R.D.); (B.L.R.)
| | - Richard Darago
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (R.M.); (A.D.); (R.D.); (B.L.R.)
| | - Bence L. Raposa
- Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, 7624 Pécs, Hungary; (L.S.); (R.M.); (A.D.); (R.D.); (B.L.R.)
| | - Nowrasteh Ghodratollah
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Timea Varjas
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Balazs Nemeth
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Zsuzsanna Orsos
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Eva Pozsgai
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
| | - Jozsef L. Szentpeteri
- Institute of Transdisciplinary Discoveries, Medical School, University of Pécs, 7624 Pécs, Hungary
- Correspondence: (A.T.); (J.L.S.); (F.B.); Tel.: +36-207-772-812 (J.L.S. & F.B.)
| | - Ferenc Budan
- Institute of Transdisciplinary Discoveries, Medical School, University of Pécs, 7624 Pécs, Hungary
- Institute of Physiology, Medical School, University of Pécs, 7624 Pécs, Hungary
- Correspondence: (A.T.); (J.L.S.); (F.B.); Tel.: +36-207-772-812 (J.L.S. & F.B.)
| | - Istvan Kiss
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary; (N.G.); (T.V.); (B.N.); (Z.O.); (E.P.); (I.K.)
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Kandettu A, Adiga D, Devi V, Suresh PS, Chakrabarty S, Radhakrishnan R, Kabekkodu SP. Deregulated miRNA clusters in ovarian cancer: Imperative implications in personalized medicine. Genes Dis 2022; 9:1443-1465. [PMID: 36157483 PMCID: PMC9485269 DOI: 10.1016/j.gendis.2021.12.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 12/04/2021] [Accepted: 12/31/2021] [Indexed: 11/25/2022] Open
Abstract
Ovarian cancer (OC) is one of the most common and fatal types of gynecological cancer. OC is usually detected at the advanced stages of the disease, making it highly lethal. miRNAs are single-stranded, small non-coding RNAs with an approximate size ranging around 22 nt. Interestingly, a considerable proportion of miRNAs are organized in clusters with miRNA genes placed adjacent to one another, getting transcribed together to result in miRNA clusters (MCs). MCs comprise two or more miRNAs that follow the same orientation during transcription. Abnormal expression of the miRNA cluster has been identified as one of the key drivers in OC. MC exists both as tumor-suppressive and oncogenic clusters and has a significant role in OC pathogenesis by facilitating cancer cells to acquire various hallmarks. The present review summarizes the regulation and biological function of MCs in OC. The review also highlights the utility of abnormally expressed MCs in the clinical management of OC.
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Olive Oil Improves While Trans Fatty Acids Further Aggravate the Hypomethylation of LINE-1 Retrotransposon DNA in an Environmental Carcinogen Model. Nutrients 2022; 14:nu14040908. [PMID: 35215560 PMCID: PMC8878525 DOI: 10.3390/nu14040908] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/13/2022] [Accepted: 02/14/2022] [Indexed: 02/08/2023] Open
Abstract
DNA methylation is an epigenetic mechanism that is crucial for mammalian development and genomic stability. Aberrant DNA methylation changes have been detected not only in malignant tumor tissues; the decrease of global DNA methylation levels is also characteristic for aging. The consumption of extra virgin olive oil (EVOO) as part of a balanced diet shows preventive effects against age-related diseases and cancer. On the other hand, consuming trans fatty acids (TFA) increases the risk of cardiovascular diseases as well as cancer. The aim of the study was to investigate the LINE-1 retrotransposon (L1-RTP) DNA methylation pattern in liver, kidney, and spleen of mice as a marker of genetic instability. For that, mice were fed with EVOO or TFA and were pretreated with environmental carcinogen 7,12-dimethylbenz[a]anthracene (DMBA)-a harmful substance known to cause L1-RTP DNA hypomethylation. Our results show that DMBA and its combination with TFA caused significant L1-RTP DNA hypomethylation compared to the control group via inhibition of DNA methyltransferase (DNMT) enzymes. EVOO had the opposite effect by significantly decreasing DMBA and DMBA + TFA-induced hypomethylation, thereby counteracting their effects.
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Huang Y, Chu P, Bao G. Silencing of Long Non-coding RNA TTN-AS1 Inhibits Hepatocellular Carcinoma Progression by the MicroRNA-134/ITGB1 Axis. Dig Dis Sci 2021; 66:3916-3928. [PMID: 33387127 DOI: 10.1007/s10620-020-06737-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) causes considerable mortality worldwide. Long non-coding RNA (lncRNA) TTN-AS1 has been recently identified as an oncogene in several cancers, but its role in HCC and the molecules remain largely unknown. AIMS The study aims to probe the function of lncRNA TTN-AS1 in HCC progression and the molecules involved. METHODS Differentially expressed lncRNAs between HCC and the adjacent normal tissues were analyzed using a microarray. TTN-AS1 expression in HCC and normal tissues and cells was determined. Targeting relationships between TTN-AS1 and miR-134 and between miR-134 and ITGB1 were validated. Artificial up-regulation or down-regulation of TTN-AS1, miR-134 and ITGB1 was introduced in HCC cells to probe their effects on the biological behaviors of HCC cells. Xenograft tumors were induced in nude mice for in vivo experiments. RESULTS TTN-AS1 and ITGB1 were highly expressed, while miR-134 was poorly expressed in HCC tissues. TTN-AS1 enforced ITGB1 expression through sequestering miR-134. Silencing of TTN-AS1 or over-expression of miR-134 inhibited proliferation, invasion, migration, and resistance to death of Huh7 cells. Following miR-134 silencing, further down-regulation of ITGB1 suppressed the malignant behaviors of HUH7 cells. The similar results were reproduced in vivo. CONCLUSION The current study provided evidence that TTN-AS1 might promote HCC progression through sponging miR-134 and the following ITGB1 up-regulation. TTN-AS1 may serve as a potential target for HCC treatment.
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Affiliation(s)
- Yong Huang
- Department of Hepatobiliary Surgery, Zaozhuang Municipal Hospital, No 41, Longtou Road, Shizhong District, Zaozhuang, 277101, Shandong, People's Republic of China
| | - Peng Chu
- Department of Hepatobiliary Surgery, Zaozhuang Municipal Hospital, No 41, Longtou Road, Shizhong District, Zaozhuang, 277101, Shandong, People's Republic of China
| | - Guangjian Bao
- Department of Hepatobiliary Surgery, Zaozhuang Municipal Hospital, No 41, Longtou Road, Shizhong District, Zaozhuang, 277101, Shandong, People's Republic of China.
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Rapid changes of miRNAs-20, -30, -410, -515, -134, and -183 and telomerase with psychological activity: A one year study on the relaxation response and epistemological considerations. J Tradit Complement Med 2021; 11:409-418. [PMID: 34522635 PMCID: PMC8427477 DOI: 10.1016/j.jtcme.2021.02.005] [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: 09/10/2020] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 11/22/2022] Open
Abstract
Background and aim Mental stress represents a pivotal factor in cardiovascular diseases. The mechanism by which stress produces its deleterious effects is still under study, but one of the most explored pathways is inflammation-aging and cell senescence. In this scenario, circulating microRNAs appear to be regulatory elements of the telomerase activity and alternative splicing within the nuclear factor kappa-light-chain-enhancer (NF-κB) network. Anti-stress techniques appeared to be able to slow down the inflammatory and aging processes. As we recently verified, the practice of the relaxation response (RR) counteracted psychological stress and determined favorable changes of the NF-κB, p53, and toll-like receptor-4 (TLR-4) gene expression and in neurotransmitters, hormones, cytokines, and inflammatory circulating microRNAs. We aimed to verify a possible change in the serum levels of six other micro-RNAs of cardiovascular interest, involved in cell senescence and in the NF-κB network (miRNAs -20, -30, -410, -515, -134, and -183), and tested the activity of telomerase in peripheral blood mononuclear cells (PBMCs). Experimental procedure We measured the aforementioned molecules in the serum of patients with ischemic heart disease (and healthy controls) immediately before and after a relaxation response session, three times (after the baseline), in one year of follow-up. Results According to our data, the miRNA-20 and -30 levels and PBMCs-telomerase activity increased during the RR while the -410 and -515 levels decreased. During the RR sessions, both miRNA-134 and -183 decreased. Conclusion The mediators considered in this exploratory work appeared to vary rapidly with the psychological activity (in particular when focused on relaxation techniques) showing that psychological activity should be part of the future research on epigenetics. Epistemological perspectives are also discussed.
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Zhang Q, Wu J, Zhang X, Cao L, Wu Y, Miao X. Transcription factor ELK1 accelerates aerobic glycolysis to enhance osteosarcoma chemoresistance through miR-134/PTBP1 signaling cascade. Aging (Albany NY) 2021; 13:6804-6819. [PMID: 33621196 PMCID: PMC7993718 DOI: 10.18632/aging.202538] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 03/31/2020] [Indexed: 12/12/2022]
Abstract
Osteosarcoma is a malignancy that primarily affects children and young adults. The poor survival is largely attributed to acquisition of chemoresistance. Thus, the current study aimed to elucidate the role of ELK1/miR-134/PTBP1 signaling cascade in osteosarcoma chemoresistance. Doxorubicin (DXR)-resistant human osteosarcoma cells were initially self-established by continuous exposure of MG-63, U2OS and HOS cells to increasing DXR doses. Osteosarcoma chemoresistance in vitro was evaluated using CCK-8 assays and EdU staining. Aerobic glycolysis was evaluated by lactic acid production, glucose consumption, ATP levels, and Western blot analysis of GLUT3, HK2 and PDK1 proteins. The nude mice were injected with 5.0 mg/kg DXR following the subcutaneous transplantation of osteosarcomas. PTBP1 was upregulated in tumor tissues derived from non-responders to DXR treatment and correlated with patient poor survival. PTBP1 enhanced chemoresistance in cultured osteosarcoma cells in vitro and in vivo by increasing aerobic glycolysis. Additionally, miR-134 inhibited translation of PTBP1. ELK1 bound to miR-134 promoter and inhibited its expression. Overexpressed ELK1 enhanced chemoresistance and increased aerobic glycolysis by downregulating miR-134 and upregulating PTBP1 in DXR-resistant cells. Altogether, the key findings of the present study highlight ELK1/miR-134/PTBP1 signaling cascade as a novel molecular mechanism underlying the acquisition of osteosarcoma chemoresistance.
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Affiliation(s)
- Qiang Zhang
- Foot and Ankle Group of Department of Orthopaedics, The Second Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou 310000, China
| | - Jiaqi Wu
- Trauma Group of Orthopaedics, The Second Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou 310000, China
| | - Xiangfeng Zhang
- Trauma Group of Orthopaedics, The Second Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou 310000, China
| | - Le Cao
- Foot and Ankle Group of Department of Orthopaedics, The Second Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou 310000, China
| | - Yongping Wu
- Foot and Ankle Group of Department of Orthopaedics, The Second Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou 310000, China
| | - Xudong Miao
- Foot and Ankle Group of Department of Orthopaedics, The Second Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou 310000, China
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12
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In vivo effects of olive oil and trans-fatty acids on miR-134, miR-132, miR-124-1, miR-9-3 and mTORC1 gene expression in a DMBA-treated mouse model. PLoS One 2021; 16:e0246022. [PMID: 33539381 PMCID: PMC7861522 DOI: 10.1371/journal.pone.0246022] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 01/12/2021] [Indexed: 02/07/2023] Open
Abstract
Both the intake of beneficial olive oil and of harmful trans-fatty acids (TFAs) in consumed foods are of great significance in tumor biology. In our present study we examined the effects they exert on the expression patterns of miR-134, miR-132, miR-124-1, miR-9-3 and mTOR in the liver, spleen and kidney of mice treated with 7,12-dimethylbenz [a] anthracene (DMBA). Feeding of TFA-containing diet significantly increased the expression of all studied miRs and mTORC1 in all organs examined, except the expression of mTORC1 in the spleen and kidney. Diet containing olive oil significantly reduced the expression of miR-124-1, miR-9-3 and mTORC1 in the liver and spleen. In the kidney, apart from the mTORC1 gene, the expression of all miRs examined significantly decreased compared to the DMBA control. According to our results, the cell membrane protective, antioxidant, and anti-inflammatory effects of olive oil and the cell membrane damaging, inflammatory, and carcinogenic properties of TFA suggest negative feedback regulatory mechanisms. In contrast to our expectations, mTORC1 gene expression in the kidney has not been shown to be an appropriate biomarker-presumably, because the many complex effects that regulate mTOR expression may quench each other.
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Ghafouri-Fard S, Shoorei H, Abak A, Abbas Raza SH, Pichler M, Taheri M. Role of non-coding RNAs in modulating the response of cancer cells to paclitaxel treatment. Biomed Pharmacother 2020; 134:111172. [PMID: 33360156 DOI: 10.1016/j.biopha.2020.111172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/12/2020] [Accepted: 12/15/2020] [Indexed: 02/07/2023] Open
Abstract
Paclitaxel is a chemotherapeutic substance that is administered for treatment of an extensive spectrum of human malignancies. In spite of its potent short-term effects against tumor cells, resistance to paclitaxel occurs in a number of patients precluding its long-term application in these patients. Non-coding RNAs have been shown to influence response of cancer cells to this chemotherapeutic agent via different mechanisms. Mechanistically, these transcripts regulate expression of several genes particularly those being involved in the apoptotic processes. Lots of in vivo and in vitro assays have demonstrated the efficacy of oligonucleotide-mediated microRNAs (miRNA)/ long non-coding RNAs (lncRNA) silencing in enhancement of response of cancer cells to paclitaxel. Therefore, targeted therapies against non-coding RNAs have been suggested as applicable modalities for combatting resistance to this agent. In the present review, we provide a summary of studies which assessed the role of miRNAs and lncRNAs in conferring resistance to paclitaxel.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Atefe Abak
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sayed Haidar Abbas Raza
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang, China
| | - Martin Pichler
- Research Unit of Non-Coding RNAs and Genome Editing in Cancer, Division of Clinical Oncology, Department of Internal Medicine, Comprehensive Cancer Center Graz, Medical University of Graz, 8036 Graz, Austria; Department of Experimental Therapeutics, the University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Zeng Y, Qin T, Flamini V, Tan C, Zhang X, Cong Y, Birkin E, Jiang WG, Yao H, Cui Y. Identification of DHX36 as a tumour suppressor through modulating the activities of the stress-associated proteins and cyclin-dependent kinases in breast cancer. Am J Cancer Res 2020; 10:4211-4233. [PMID: 33414996 PMCID: PMC7783738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/29/2020] [Indexed: 06/12/2023] Open
Abstract
The nucleic acid guanine-quadruplex structures (G4s) are involved in many aspects of cancer progression. The DEAH-box polypeptide 36 (DHX36) has been identified as a dominant nucleic acid helicase which targets and disrupts DNA and RNA G4s in an ATP-dependent manner. However, the actual role of DHX36 in breast cancer remains unknown. In this study, we observed that the gene expression of DHX36 was positively associated with patient survival in breast cancer. The abundance of DHX36 is also linked with pathologic conditions and the stage of breast cancer. By using the xenograft mouse model, we demonstrated that the stable knockdown of DHX36 via lentivirus in breast cancer cells significantly promoted tumour growth. We also found that, after the DHX36 knockdown (KD), the invasion of triple-negative breast cancer cells was enhanced. In addition, we found a significant increase in the number of cells in the S-phase and a reduction of apoptosis with the response to cisplatin. DHX36 KD also desensitized the cytotoxic cellular response to paclitaxel and cisplatin. Transcriptomic profiling analysis by RNA sequencing indicated that DHX36 altered gene expression profile through the upstream activation of TNF, IFNγ, NFκb and TGFβ1. High throughput signalling analysis showed that one cluster of stress-associated kinase proteins including p53, ROCK1 and JNK were suppressed, while the mitotic checkpoint protein-serine kinases CDK1 and CDK2 were activated, as a consequence of the DHX36 knockdown. Our study reveals that DHX36 functions as a tumour suppressor and may be considered as a potential therapeutic target in breast cancer.
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Affiliation(s)
- Yinduo Zeng
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhou 510120, China
- Cardiff China Medical Research Collaborative, Cardiff University School of MedicineHeath Park, Cardiff CF14 4XN, UK
- Breast Tumour Center, Sun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou 510120, China
| | - Tao Qin
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhou 510120, China
- Department of Medical Oncology, Sun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Valentina Flamini
- Cardiff China Medical Research Collaborative, Cardiff University School of MedicineHeath Park, Cardiff CF14 4XN, UK
| | - Cui Tan
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhou 510120, China
- Department of Pathology, Sun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Xinke Zhang
- Sun Yat-sen University Cancer Centre, The State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer MedicineGuangzhou 510060, China
| | - Yizi Cong
- Cardiff China Medical Research Collaborative, Cardiff University School of MedicineHeath Park, Cardiff CF14 4XN, UK
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao UniversityYantai, China
| | - Emily Birkin
- Cardiff China Medical Research Collaborative, Cardiff University School of MedicineHeath Park, Cardiff CF14 4XN, UK
| | - Wen G Jiang
- Cardiff China Medical Research Collaborative, Cardiff University School of MedicineHeath Park, Cardiff CF14 4XN, UK
| | - Herui Yao
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhou 510120, China
- Breast Tumour Center, Sun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou 510120, China
| | - Yuxin Cui
- Cardiff China Medical Research Collaborative, Cardiff University School of MedicineHeath Park, Cardiff CF14 4XN, UK
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15
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Shi ZY, Yang XX, Malichewe C, Li YS, Guo XL. Exosomal microRNAs-mediated intercellular communication and exosome-based cancer treatment. Int J Biol Macromol 2020; 158:530-541. [PMID: 32360962 DOI: 10.1016/j.ijbiomac.2020.04.228] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/26/2020] [Accepted: 04/25/2020] [Indexed: 02/06/2023]
Abstract
Exosomes are extracellular vesicles with a diameter of about 30 to 100 nm, which play a crucial role in intercellular communication. Compared with normal cells, the release rate of tumor-derived exosomes (TDEs) significantly increased, and exosomal contents, especially microRNAs (miRNAs), greatly changed. TDEs contribute to the proliferation, metastasis and resistance of tumor cells, regulate immune response and tumor autophagy, and mediate tumor-stroma communication. In addition, exosomes may be involved in tumor complications. In view of the role of exosomes in intercellular communication, exosomes have been developed as tumor biomarkers, therapeutic targets, and drug delivery systems for tumor diagnosis, prognosis and treatment. Despite the many advantages of exosomes, there are many challenges in exosomal development and application, such as incomprehensive understanding of biological functions, safety and specificity for therapeutic use. This article reviews the biogenesis of TDEs and focuses on the role of exosomal miRNAs in intercellular communication and exosome-based treatment for cancer.
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Affiliation(s)
- Zhao-Yu Shi
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, PR China
| | - Xiao-Xia Yang
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, PR China
| | - ChristinaYallen Malichewe
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, PR China
| | - Ying-Shuang Li
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, PR China
| | - Xiu-Li Guo
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, PR China..
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16
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Bai R, Dou K, Wu Y, Ma Y, Sun J. The NF-κB modulated miR-194-5p/IGF1R/PPFIBP axis is crucial for the tumorigenesis of ovarian cancer. J Cancer 2020; 11:3433-3445. [PMID: 32284739 PMCID: PMC7150469 DOI: 10.7150/jca.40604] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 02/25/2020] [Indexed: 12/13/2022] Open
Abstract
miRNAs are involved in the tumorigenesis of various malignancies. In the current study, we found that miR-194-5p expression is downregulated in ovarian cancer tissues, and downregulation of miR-194-5p expression promotes proliferation, invasion and migration of human ovarian cancer cells in vitro and ovarian tumor growth in nude mice. We further found that IGF1R and PPFIBP are targets of miR-194-5p, and downregulation of miR-194-5p expression increases IGF1R and PPFIBP expression, resulting in increased proliferation, invasion and migration of ovarian cancer cells. Moreover, we showed that NF-κB can bind to the promoter region of miR-194-5p, and negatively regulate the expression of miR-194-5p in ovarian cancer cells. Taken together, our results suggested a NF-κB modulated miR-194-5p/IGF1R/ PPFIBP axis that is crucial for the tumorigenesis of ovarian cancer, which provides a new insight into the development of ovarian cancer.
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Affiliation(s)
- Ru Bai
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Kaikai Dou
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Yang Wu
- School of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Yongjing Ma
- Department of Gynecological Tumors Surgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Jianmin Sun
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China.,Division of Translational Cancer Research, Lund Stem Cell Center, Department of Laboratory Medicine, Lund University, Lund, Sweden
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17
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Li L, Cheng Y, Lin L, Liu Z, Du S, Ma L, Li J, Peng Z, Yan J. Global Analysis of miRNA Signature Differentially Expressed in Insulin-resistant Human Hepatocellular Carcinoma Cell Line. Int J Med Sci 2020; 17:664-677. [PMID: 32210717 PMCID: PMC7085209 DOI: 10.7150/ijms.41999] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/21/2020] [Indexed: 12/27/2022] Open
Abstract
Chemoresistance mediated by insulin resistance (IR) in HCC has already been validated. However, the underlying mechanism, especially the involvement of microRNAs (miRNAs) was unelucidated. In this study, miRNA microarrays and bioinformatics methods were employed to determine the dysregulation of miRNA by IR in HCC cells, and quantitative RT-PCR (qRT-PCR) was applied to valid the miRNA array data. Of all the 2006 miRNAs screened, 32 miRNAs were found up or down regulated between the HepG2/IR cells and its parental cells. Further literature mining revealed that some of these miRNAs may function as oncogenes or tumor suppressors that contribute to tumor progression, recurrence, and metastasis which eventually lead to chemotherapeutic resistance. Interestingly, bioinformatics analysis by Gene Ontology (GO) enrichment pathway indicating that function of the predicted target genes of these dysregulated miRNAs were significantly enriched in the processes related with biosynthesis, catabolism, modification etc., and Kyoto Encyclopedia of Genes and Genomes (KEGG) mapping showed that the biological regulatory mechanisms were integrated in cancer-related pathways. Moreover, we also constructed a network which connected the differentially expressed miRNAs to target genes, GO enrichments and KEGG pathways to reveal the hub miRNAs, genes and pathways. Collectively, our present study demonstrated the possible miRNAs and predicted target genes involving in the pathophysiology of insulin resistant HCC, providing novel insights into the molecular mechanisms of multidrug resistance in the insulin resistant HepG2 cells.
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Affiliation(s)
- Linjing Li
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou 730000, P.R. China
| | - Yan Cheng
- Northwest University for Nationalities, Lanzhou 730000, P.R. China
| | - Li Lin
- Hematology Department, Gansu Provincial Cancer Hospital, Lanzhou, Gansu 730000, China
| | - Zhuan Liu
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou 730000, P.R. China
| | - Shengfang Du
- Department of Anesthesiology, the Second Hospital of Lanzhou University, Lanzhou 730000, P.R. China
| | - Li Ma
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou 730000, P.R. China
| | - Jing Li
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou 730000, P.R. China
| | - Zhiheng Peng
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou 730000, P.R. China
| | - Jing Yan
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou 730000, P.R. China
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18
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Tian N, Shangguan W, Zhou Z, Yao Y, Fan C, Cai L. Lin28b is involved in curcumin-reversed paclitaxel chemoresistance and associated with poor prognosis in hepatocellular carcinoma. J Cancer 2019; 10:6074-6087. [PMID: 31762817 PMCID: PMC6856568 DOI: 10.7150/jca.33421] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 08/24/2019] [Indexed: 12/11/2022] Open
Abstract
Chemoresistance remains a big challenge in hepatocellular carcinoma (HCC) treatment. Several studies indicated that RNA-binding protein Lin28B serves an oncogenic role in HCC, but its activity in HCC chemotherapy has never been assessed. In this study, we found that overexpression of Lin28B significantly increased the paclitaxel chemoresistance in two different HCC cells lines while silencing Lin28B reduced the chemoresistance in paclitaxel-resistance HCC cells. Curcumin, a natural anti-cancer agent, increased the sensitivity of HCC cells to paclitaxel through inhibiting NF-κB stimulated Lin28B expression both in vitro and in vivo. Furthermore, by analyzing TCGA (The Cancer Genome Atlas) LIHC (liver hepatocellular carcinoma) and GSE14520 databases, we found that Lin28B was highly upregulated in HCC tissue compared with that in normal tissue and associated with α‑fetoprotein levels, and that patients with Lin28B higher expression had a significant shorter overall survival time than those with Lin28B lower expression. Our data reveal that Lin28B may serve as a predictive biomarker and a treatment target to reverse HCC chemotherapy resistance in future clinical practice.
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Affiliation(s)
- Nan Tian
- Institute of Molecular Medicine, Life Science College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Wenbing Shangguan
- Institute of Molecular Medicine, Life Science College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Zuolin Zhou
- Institute of Molecular Medicine, Life Science College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yao Yao
- Institute of Molecular Medicine, Life Science College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Chunlei Fan
- Institute of Molecular Medicine, Life Science College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Lijun Cai
- Department of gastroenterology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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19
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Zhang L, Huang P, Li Q, Wang D, Xu CX. miR-134-5p Promotes Stage I Lung Adenocarcinoma Metastasis and Chemoresistance by Targeting DAB2. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:627-637. [PMID: 31689617 PMCID: PMC6838973 DOI: 10.1016/j.omtn.2019.09.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/15/2019] [Accepted: 09/27/2019] [Indexed: 02/06/2023]
Abstract
Despite surgery and adjuvant therapy, early-stage lung adenocarcinoma (LUAD) treatment often fails due to local or metastatic recurrence. However, the mechanism is largely unknown. Here, we report that increased expression levels of miR-134-5p and decreased levels of disabled-2 (DAB2) were significantly correlated with recurrence in stage I LUAD patients. Our data show that miR-134-5p overexpression or DAB2 silencing strongly stimulated LUAD cell metastasis and chemoresistance. In contrast, inhibition of miR-134-5p or overexpression of DAB2 strongly suppressed LUAD cell metastasis and overcame the insensitivity of chemoresistant LUAD cells to chemotherapy. In addition, we demonstrated that DAB2 is a target of miR-134-5p and that miR-134-5p stimulates chemoresistance and metastasis through DAB2 in LUAD. Taken together, these findings suggest that miR-134-5p and its target gene DAB2 have potential as a biomarker for predicting recurrence in stage I LUAD patients. Additionally, miR-134-5p inhibition or DAB2 restoration may be a novel strategy for inhibiting LUAD metastasis and overcoming LUAD cell resistance to chemotherapy.
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Affiliation(s)
- Liang Zhang
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Ping Huang
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Qing Li
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Dong Wang
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China.
| | - Cheng-Xiong Xu
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China.
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20
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Harrington BS, Annunziata CM. NF-κB Signaling in Ovarian Cancer. Cancers (Basel) 2019; 11:cancers11081182. [PMID: 31443240 PMCID: PMC6721592 DOI: 10.3390/cancers11081182] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/05/2019] [Accepted: 08/12/2019] [Indexed: 12/13/2022] Open
Abstract
The NF-κB signaling pathway is a master and commander in ovarian cancer (OC) that promotes chemoresistance, cancer stem cell maintenance, metastasis and immune evasion. Many signaling pathways are dysregulated in OC and can activate NF-κB signaling through canonical or non-canonical pathways which have both overlapping and distinct roles in tumor progression. The activation of canonical NF-κB signaling has been well established for anti-apoptotic and immunomodulatory functions in response to the tumor microenvironment and the non-canonical pathway in cancer stem cell maintenance and tumor re-initiation. NF-κB activity in OC cells helps to create an immune-evasive environment and to attract infiltrating immune cells with tumor-promoting phenotypes, which in turn, drive constitutive NF-κB activation in OC cells to promote cell survival and metastasis. For these reasons, NF-κB is an attractive target in OC, but current strategies are limited and broad inhibition of this major signaling pathway in normal physiological and immunological functions may produce unwanted side effects. There are some promising pre-clinical outcomes from developing research to target and inhibit NF-κB only in the tumor-reinitiating cancer cell population of OC and concurrently activate canonical NF-κB signaling in immune cells to promote anti-tumor immunity.
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21
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Dong Z, Li B, Wang X. microRNA‑889 plays a suppressive role in cell proliferation and invasion by directly targeting TAB1 in non‑small cell lung cancer. Mol Med Rep 2019; 20:261-269. [PMID: 31115539 DOI: 10.3892/mmr.2019.10245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 04/09/2019] [Indexed: 11/06/2022] Open
Affiliation(s)
- Zheng Dong
- Department of Outpatients, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Bingchun Li
- Department of Thoracic Surgery, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Xiaojuan Wang
- Department of Thoracic Surgery, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
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22
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Zhao P, Wang M, An J, Sun H, Li T, Li D. A positive feedback loop of miR-30a-5p-WWP1-NF-κB in the regulation of glioma development. Int J Biochem Cell Biol 2019; 112:39-49. [PMID: 30978403 DOI: 10.1016/j.biocel.2019.04.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/22/2019] [Accepted: 04/08/2019] [Indexed: 01/08/2023]
Abstract
Previous studies demonstrated that miR-30a-5p promotes glioma cell growth and invasion. Furthermore, WWP1 (WW domain containing E3 ubiquitin protein ligase 1) inhibits NF-κB activation that is strongly correlated with gliomagenesis. Using the GEO database and bioinformatics analyses, we identified WWP1 was downregulated in glioma tissues and might be a putative target for miR-30a-5p. Hence, this study aims to explore the interaction among miR-30a-5p, WWP1, and NF-κB and their roles in the regulation of glioma development. We found decreased WWP and increased miR-30a-5p expression and p65 phosphorylation in glioma tissues. Furthermore, WWP1 mRNA level was negatively correlated with miR-30a-5p expression in glioma tissues. Interestingly, miR-30a-5p targeted WWP1 expression. Additionally, NF-κB p65 overexpression increased miR-30a-5p expression through direct binding of NF-κB RelA subunit to the promoter of miR-30a-5p. We also confirmed that WWP1 overexpression decreased phosphorylation of NF-κB p65. Importantly, miR-30a-5p promoted glioma cell proliferation, migration, and invasion via targeting WWP1. Furthermore, NF-κB p65 overexpression inhibited WWP1 expression and promoted glioma cell malignant behaviors via inducing miR-30a-5p transcription. Moreover, WWP1 overexpression decreased miR-30a-5p expression and inhibited glioma cell malignant behaviors via inhibiting NF-κB p65. Our further assay showed that WWP1 inhibited in vivo growth of xenograft tumors of glioma cells, accompanied with a decrease in miR-30-5p expression and phosphorylation of NF-κB p65. In conclusion, there is a "miR-30a-5p-WWP1-NF-κB" positive feedback loop, which plays an important role in regulating glioma development and might provide a potential therapeutic strategy for treating glioma.
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Affiliation(s)
- Peichao Zhao
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan Province, China.
| | - MengMeng Wang
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan Province, China
| | - Jiyang An
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan Province, China
| | - Hongwei Sun
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan Province, China
| | - Tianhao Li
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan Province, China
| | - Dongming Li
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan Province, China
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23
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Wang P, Lei S, Wang X, Xu W, Hu P, Chen F, Zhang X, Yin C, Xie W. MicroRNA-134 deactivates hepatic stellate cells by targeting TGF-β activated kinase 1-binding protein 1. Biochem Cell Biol 2019; 97:505-512. [PMID: 30645141 DOI: 10.1139/bcb-2018-0211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Aberrant expression of microRNAs is associated with liver fibrogenesis. We previously found that microRNA-134 (miR-134) expression was reduced in fibrosis-based hepatocarcinogenesis induced by diethylinitrosamine. Herein we investigate the role and mechanisms of miR-134 in hepatic fibrosis. Our data show that miR-134 expression is reduced in rat hepatic fibrogenesis induced by carbontetrachloride, bile duct ligation, and dimethylnitrosamine, as well as in activated hepatic stellate cells (HSCs). Moreover, miR-134 inhibited HSC proliferation, and decreased the expression of smooth muscle actin and collagen I in HSCs, whereas the miR-134 inhibitor increased HSC activation. MiR-134 also negatively regulated transforming growth factor-β-activated kinase 1-binding protein 1 (TAB1) expression in both human and rat HSCs by directly binding to its 3' untranslated region. Importantly, TAB1 expression was significantly elevated during liver fibrogenesis and HSC activation. Knockdown of TAB1 inhibited the proliferation and fibrogenic behavior of HSCs, and significantly reduced the effect of the miR-134 inhibitor on HSC proliferation. Collectively, these data suggest that miR-134 inhibits the activation of HSCs via directly targeting TAB1, and the restoration of miR-134 or targeting TAB1 is of clinical significance in the treatment of liver fibrosis.
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Affiliation(s)
- Peiqin Wang
- Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Shujuan Lei
- Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Xiaohang Wang
- Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.,Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Wenping Xu
- Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.,Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Pingfang Hu
- Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.,Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Fei Chen
- Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.,Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Xin Zhang
- Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.,Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Chuan Yin
- Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.,Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Weifen Xie
- Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.,Department of Gastroenterology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
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24
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Shi C, Wang M. LINC01118 Modulates Paclitaxel Resistance of Epithelial Ovarian Cancer by Regulating miR-134/ABCC1. Med Sci Monit 2018; 24:8831-8839. [PMID: 30521500 PMCID: PMC6292151 DOI: 10.12659/msm.910932] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/06/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Epithelial ovarian cancer (EOC) has a high mortality rate and is a common malignant tumor of women, seriously impairing health. Chemoresistance is one of the major causes of poor prognosis. Therefore, analyzing the molecular mechanism of paclitaxel resistance has great significance. MATERIAL AND METHODS We analyzed aberrantly expressed lncRNAs in chemoresistant EOC cells by microarray and confirmed LINC01118 expression by real-time PCR. The paclitaxel sensitivity alternation was analyzed by MTS, flow cytometry, and Transwell assay, while wound healing assays were performed to assess apoptosis, migration, and invasion in vitro. The interaction between LINC01118 and miR-134 was confirmed by luciferase assay. RESULTS LINC01118 was highly expressed in EOC tissues and chemoresistant cells. Biological function experiments showed LINC01118 could facilitate paclitaxel resistance and promote migration and invasion while inhibiting apoptosis of EOC cells. Moreover, LINC01118 targets miR-134 and then affects ABCC1 expression. CONCLUSIONS LINC01118 acted as an oncogene and modulated EOC paclitaxel sensitivity by regulating miR-134/ABCC1.
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25
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Alharbi M, Zuñiga F, Elfeky O, Guanzon D, Lai A, Rice GE, Perrin L, Hooper J, Salomon C. The potential role of miRNAs and exosomes in chemotherapy in ovarian cancer. Endocr Relat Cancer 2018; 25:R663-R685. [PMID: 30400025 DOI: 10.1530/erc-18-0019] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 07/26/2018] [Indexed: 12/20/2022]
Abstract
Chemoresistance is one of the major obstacles in the treatment of cancer patients. It poses a fundamental challenge to the effectiveness of chemotherapy and is often linked to relapse in patients. Chemoresistant cells can be identified in different types of cancers; however, ovarian cancer has one of the highest rates of chemoresistance-related relapse (50% of patients within 5 years). Resistance in cells can either develop through prolonged cycles of treatment or through intrinsic pathways. Mechanistically, the problem of drug resistance is complex mainly because numerous factors are involved, such as overexpression of drug efflux pumps, drug inactivation, DNA repair mechanisms and alterations to and/or mutations in the drug target. Additionally, there is strong evidence that circulating miRNAs participate in the development of chemoresistance. Recently, miRNAs have been identified in exosomes, where they are encapsulated and hence protected from degradation. These miRNAs within exosomes (exo-miRNAs) can regulate the gene expression of target cells both locally and systemically. Exo-miRNAs play an important role in disease progression and can potentially facilitate chemoresistance in cancer cells. In addition, and from a diagnostic perspective, exo-miRNAs profiles may contribute to the development of predictive models to identify responder and non-responder chemotherapy. Such model may also be used for monitoring treatment response and disease progression. Exo-miRNAs may ultimately serve as both a predictive biomarker for cancer response to therapy and as a prognostic marker for the development of chemotherapy resistance. Therefore, this review examines the potential role of exo-miRNAs in chemotherapy in ovarian cancer.
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Affiliation(s)
- Mona Alharbi
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane Queensland, Australia
| | - Felipe Zuñiga
- Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, Chile
| | - Omar Elfeky
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane Queensland, Australia
| | - Dominic Guanzon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane Queensland, Australia
| | - Andrew Lai
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane Queensland, Australia
| | - Gregory E Rice
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane Queensland, Australia
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Ochsner Clinic Foundation, New Orleans, Louisiana, USA
- Perinatology Research Branch, NICHD/NIH, Wayne State University, Detroit, Michigan, USA
| | - Lewis Perrin
- Mater Research Institute, University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
- Mater Ovarian Cancer Research Collaborative, Mater Adult Hospital, South Brisbane, Queensland, Australia
| | - John Hooper
- Mater Research Institute, University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
- Mater Ovarian Cancer Research Collaborative, Mater Adult Hospital, South Brisbane, Queensland, Australia
| | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane Queensland, Australia
- Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, Chile
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Ochsner Clinic Foundation, New Orleans, Louisiana, USA
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26
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Kashyap D, Tuli HS, Garg VK, Goel N, Bishayee A. Oncogenic and Tumor-Suppressive Roles of MicroRNAs with Special Reference to Apoptosis: Molecular Mechanisms and Therapeutic Potential. Mol Diagn Ther 2018; 22:179-201. [PMID: 29388067 DOI: 10.1007/s40291-018-0316-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) are the non-coding class of minute RNA molecules that negatively control post-transcriptional regulation of various functional genes. These miRNAs are transcribed from the loci present in the introns of functional or protein-coding genes, exons of non-coding genes, or even in the 3'-untranslated region (3'-UTR). They have potential to modulate the stability or translational efficiency of a variety of target RNA [messenger RNA (mRNA)]. The regulatory function of miRNAs has been elucidated in several pathological conditions, including neurological (Alzheimer's disease and Parkinson's disease) and cardiovascular conditions, along with cancer. Importantly, miRNA identification in cancer progression and invasion has evolved as an incipient era in cancer treatment. Several studies have shown the influence of miRNAs on various cancer processes, including apoptosis, invasion, metastasis and angiogenesis. In particular, apoptosis induction in tumor cells through miRNA has been extensively studied. The biphasic mode (up- and down-regulation) of miRNA expression in apoptosis and other cancer processes has already been determined. The findings of these studies could be utilized to develop potential therapeutic strategies for the management of various cancers. The present review critically describes the oncogenic and tumor suppressor role of miRNAs in apoptosis and other cancer processes, therapy resistance, and use of their presence in the body fluids as biomarkers.
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Affiliation(s)
- Dharambir Kashyap
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, Punjab, India
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar University, Mullana-Ambala, 133207, Haryana, India.
| | - Vivek Kumar Garg
- Department of Biochemistry, Government Medical College and Hospital, Chandigarh, 160030, Punjab, India
| | - Neelam Goel
- Department of Information Technology, University Institute of Engineering and Technology, Panjab University, Chandigarh, 160014, Punjab, India
| | - Anupam Bishayee
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, Miami, FL, 33169, USA.
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27
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dos Santos Guimarães I, Ladislau-Magescky T, Tessarollo NG, dos Santos DZ, Gimba ERP, Sternberg C, Silva IV, Rangel LBA. Chemosensitizing effects of metformin on cisplatin- and paclitaxel-resistant ovarian cancer cell lines. Pharmacol Rep 2018; 70:409-417. [DOI: 10.1016/j.pharep.2017.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 10/09/2017] [Accepted: 11/20/2017] [Indexed: 12/27/2022]
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28
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Current updates on microRNAs as regulators of chemoresistance. Biomed Pharmacother 2017; 95:1000-1012. [DOI: 10.1016/j.biopha.2017.08.084] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 08/11/2017] [Accepted: 08/23/2017] [Indexed: 12/28/2022] Open
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29
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Srivastava SK, Ahmad A, Zubair H, Miree O, Singh S, Rocconi RP, Scalici J, Singh AP. MicroRNAs in gynecological cancers: Small molecules with big implications. Cancer Lett 2017; 407:123-138. [PMID: 28549791 PMCID: PMC5601032 DOI: 10.1016/j.canlet.2017.05.011] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 05/10/2017] [Accepted: 05/15/2017] [Indexed: 12/14/2022]
Abstract
Gynecological cancers (GCs) are often diagnosed at advanced stages, limiting the efficacy of available therapeutic options. Thus, there remains an urgent and unmet need for innovative research for the efficient clinical management of GC patients. Research over past several years has revealed the enormous promise of miRNAs. These small non-coding RNAs can aid in the diagnosis, prognosis and therapy of all major GCs, viz., ovarian cancers, cervical cancers and endometrial cancers. Mechanistic details of the miRNAs-mediated regulation of multiple biological functions are under constant investigation, and a number of miRNAs are now believed to influence growth, proliferation, invasion, metastasis, chemoresistance and the relapse of different GCs. Modulation of tumor microenvironment by miRNAs can possibly explain some of their reported biological effects. miRNA signatures have been proposed as biomarkers for the early detection of GCs, even the various subtypes of individual GCs. miRNA signatures are also being pursued as predictors of response to therapies. This review catalogs the knowledge gained from collective studies, so as to assess the progress made so far. It is time to ponder over the knowledge gained, so that more meaningful pre-clinical and translational studies can be designed to better realize the potential that miRNAs have to offer.
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Affiliation(s)
- Sanjeev K Srivastava
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA.
| | - Aamir Ahmad
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Haseeb Zubair
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Orlandric Miree
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Seema Singh
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA; Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL 36688, USA
| | - Rodney P Rocconi
- Division of Gynecologic Oncology, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Jennifer Scalici
- Division of Gynecologic Oncology, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Ajay P Singh
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA; Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL 36688, USA.
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30
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Liu Y, Tao Z, Qu J, Zhou X, Zhang C. Long non-coding RNA PCAT7 regulates ELF2 signaling through inhibition of miR-134-5p in nasopharyngeal carcinoma. Biochem Biophys Res Commun 2017; 491:374-381. [DOI: 10.1016/j.bbrc.2017.07.093] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 07/15/2017] [Indexed: 02/09/2023]
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31
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Yang TQ, Chen M, Wang YQ, Xu W, Han Y, Xu J, Xiang YJ, Yuan B, Wang HZ, Zhou YX. Nuclear factor-kappa B1 inhibits early apoptosis of glioma cells by promoting the expression of Bcl-2. Onco Targets Ther 2017; 10:4305-4313. [PMID: 28919779 PMCID: PMC5587140 DOI: 10.2147/ott.s144014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Glioma is one of the most common types of adult primary brain tumors, and the underlying molecular mechanisms still remain unclear. Nuclear factor-kappa B1 (NF-κB1) is involved in a variety of malignancies and is widely expressed in malignant tumors. However, the expression of NF-κB1 in different grades of glioma, the correlation between NF-κB1 and Bcl-2 expressions in gliomas, and the research between NF-κB1 and early apoptosis of glioma cells have not been reported so far. In this study, the expression level of NF-κB1 in 31 human glioma tissues and six nonneoplastic brain tissues was determined using quantitative real-time polymerase chain reaction. Results showed that the expression of NF-κB1 in human glioma tissues and glioma cell lines, SHG44 and U87, was significantly higher compared to noncancerous brain tissues and that the expression increased with increasing degrees of tumor malignancy. Similar results were demonstrated with the expression of Bcl-2 in the same human glioma specimens. Flow cytometry results showed that inhibition of NF-κB1 expression significantly promoted apoptosis of SHG44 and U87 in human glioma cells. Western blot analysis further confirmed decreased expression of Bcl-2 protein after inhibition of NF-κB1 protein expression. Taken together, NF-κB1 overexpression inhibits early apoptosis of glioma cells and high expression of NF-κB1 promotes the expression of antiapoptotic gene Bcl-2. Therefore, our study results provide a theoretical basis for antiapoptotic mechanism of tumor cells in association with NF-κB1.
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Affiliation(s)
- Tian-Quan Yang
- Department of Neurosurgery, Children's Hospital of Soochow University
| | - Min Chen
- Department of Neurosurgery, Children's Hospital of Soochow University
| | - Yong-Qiang Wang
- Department of Neurosurgery, Children's Hospital of Soochow University
| | - Wei Xu
- Department of Neurosurgery, Children's Hospital of Soochow University
| | - Yong Han
- Department of Neurosurgery, Children's Hospital of Soochow University
| | - Jin Xu
- Department of Neurosurgery, Children's Hospital of Soochow University
| | - Yong-Jun Xiang
- Department of Neurosurgery, Children's Hospital of Soochow University
| | - Bin Yuan
- Department of Neurosurgery, Children's Hospital of Soochow University
| | - Hang-Zhou Wang
- Department of Neurosurgery, Children's Hospital of Soochow University
| | - You-Xin Zhou
- Department of Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
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32
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Sheehy S, Annabi B. A Transcriptional Regulatory Role for the Membrane Type-1 Matrix Metalloproteinase in Carcinogen-Induced Inflammasome Gene Expression. GENE REGULATION AND SYSTEMS BIOLOGY 2017. [PMID: 28634425 PMCID: PMC5467917 DOI: 10.1177/1177625017713996] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Signal-transducing functions driven by the cytoplasmic domain of membrane type-1 matrix metalloproteinase (MT1-MMP) are believed to regulate many inflammation-associated cancer cell functions including migration, proliferation, and survival. Aside from upregulation of the inflammation biomarker cyclooxygenase-2 (COX-2) expression, MT1-MMP’s role in relaying intracellular signals triggered by extracellular pro-inflammatory cues remains poorly understood. Here, we triggered inflammation in HT1080 fibrosarcoma cells with phorbol-12-myristate-13-acetate (PMA), an inducer of COX-2 and of MT1-MMP. To assess the global transcriptional regulatory role that MT1-MMP may exert on inflammation biomarkers, we combined gene array screens with a transient MT1-MMP gene silencing strategy. Expression of MT1-MMP was found to exert both stimulatory and repressive transcriptional control of several inflammasome-related biomarkers such as interleukin (IL)-1B, IL-6, IL-12A, and IL-33, as well as of transcription factors such as EGR1, ELK1, and ETS1/2 in PMA-treated cells. Among the signal-transducing pathways explored, the silencing of MT1-MMP prevented PMA from phosphorylating extracellular signal–regulated kinase, inhibitor of κB, and p105 nuclear factor κB (NF-κB) intermediates. We also found a signaling axis linking MT1-MMP to MMP-9 transcriptional regulation. Altogether, our data indicate a significant involvement of MT1-MMP in the transcriptional regulation of inflammatory biomarkers consolidating its contribution to signal transduction functions in addition to its classical hydrolytic activity.
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Affiliation(s)
- Samuel Sheehy
- Laboratoire d'Oncologie Moléculaire, Département de Chimie, Centre de recherche BIOMED, Université du Québec à Montréal, Montréal, QC, Canada
| | - Borhane Annabi
- Laboratoire d'Oncologie Moléculaire, Département de Chimie, Centre de recherche BIOMED, Université du Québec à Montréal, Montréal, QC, Canada
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