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Sergeeva O, Akhmetova E, Dukova S, Beloglazkina E, Uspenskaya A, Machulkin A, Stetsenko D, Zatsepin T. Structure-activity relationship study of mesyl and busyl phosphoramidate antisense oligonucleotides for unaided and PSMA-mediated uptake into prostate cancer cells. Front Chem 2024; 12:1342178. [PMID: 38501046 PMCID: PMC10944894 DOI: 10.3389/fchem.2024.1342178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/13/2024] [Indexed: 03/20/2024] Open
Abstract
Phosphorothioate (PS) group is a key component of a majority of FDA approved oligonucleotide drugs that increase stability to nucleases whilst maintaining interactions with many proteins, including RNase H in the case of antisense oligonucleotides (ASOs). At the same time, uniform PS modification increases nonspecific protein binding that can trigger toxicity and pro-inflammatory effects, so discovery and characterization of alternative phosphate mimics for RNA therapeutics is an actual task. Here we evaluated the effects of the introduction of several N-alkane sulfonyl phosphoramidate groups such as mesyl (methanesulfonyl) or busyl (1-butanesulfonyl) phosphoramidates into gapmer ASOs on the efficiency and pattern of RNase H cleavage, cellular uptake in vitro, and intracellular localization. Using Malat1 lncRNA as a target, we have identified patterns of mesyl or busyl modifications in the ASOs for optimal knockdown in vitro. Combination of the PSMA ligand-mediated delivery with optimized mesyl and busyl ASOs resulted in the efficient target depletion in the prostate cancer cells. Our study demonstrated that other N-alkanesulfonyl phosphoramidate groups apart from a known mesyl phosphoramidate can serve as an essential component of mixed backbone gapmer ASOs to reduce drawbacks of uniformly PS-modified gapmers, and deserve further investigation in RNA therapeutics.
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Affiliation(s)
- O. Sergeeva
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | - E. Akhmetova
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | - S. Dukova
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | - E. Beloglazkina
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - A. Uspenskaya
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - A. Machulkin
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
- Department for Biochemistry, People’s Friendship University of Russia Named after Patrice Lumumba (RUDN University), Moscow, Russia
| | - D. Stetsenko
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - T. Zatsepin
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
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2
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Dai S, Li F, Xu S, Hu J, Gao L. The important role of miR-1-3p in cancers. J Transl Med 2023; 21:769. [PMID: 37907984 PMCID: PMC10617136 DOI: 10.1186/s12967-023-04649-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 10/22/2023] [Indexed: 11/02/2023] Open
Abstract
Cancer is a malignant tumor that seriously threatens human life and health. At present, the main treatment methods include surgical resection, chemotherapy, radiotherapy, and immunotherapy. However, the mechanism of tumor occurrence and development is complex, and it produces resistance to some traditional treatment methods, leading to treatment failure and a high mortality rate for patients. Therefore, exploring the molecular mechanisms of tumor occurrence, development, and drug resistance is a very important task. MiRNAs are a type of non-coding small RNA that regulate a series of biological effects by binding to the 3'-UTR of the target mRNA, degrading the mRNA, or inhibiting its translation. MiR-1-3p is an important member of them, which is abnormally expressed in various tumors and closely related to the occurrence and development of tumors. This article introduces miR-1-3p from multiple aspects, including its production and regulation, role in tumor occurrence and development, clinical significance, role in drug resistance, and approaches for targeting miR-1-3p. Intended to provide readers with a comprehensive understanding of the important role of miR-1-3p in tumors.
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Affiliation(s)
- Shangming Dai
- Department of Pharmacy, School of Pharmacy, Phase I Clinical Trial Centre, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang, China
| | - Fengjiao Li
- Department of Pharmacy, School of Pharmacy, Phase I Clinical Trial Centre, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang, China
| | - Shuoguo Xu
- Department of Pharmacy, School of Pharmacy, Phase I Clinical Trial Centre, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang, China
| | - Jinda Hu
- Department of Pharmacy, School of Pharmacy, Phase I Clinical Trial Centre, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang, China
| | - Lichen Gao
- Department of Pharmacy, School of Pharmacy, Phase I Clinical Trial Centre, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China.
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang, China.
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3
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Shen D, Peng H, Xia C, Deng Z, Tong X, Wang G, Qian K. The Role of Long Non-Coding RNAs in Epithelial-Mesenchymal Transition-Related Signaling Pathways in Prostate Cancer. Front Mol Biosci 2022; 9:939070. [PMID: 35923466 PMCID: PMC9339612 DOI: 10.3389/fmolb.2022.939070] [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: 05/08/2022] [Accepted: 06/10/2022] [Indexed: 11/17/2022] Open
Abstract
Prostate cancer (PCa) is one of the most common male malignancies with frequent remote invasion and metastasis, leading to high mortality. Epithelial-mesenchymal transition (EMT) is a fundamental process in embryonic development and plays a key role in tumor proliferation, invasion and metastasis. Numerous long non-coding RNAs (lncRNAs) could regulate the occurrence and development of EMT through various complex molecular mechanisms involving multiple signaling pathways in PCa. Given the importance of EMT and lncRNAs in the progression of tumor metastasis, we recapitulate the research progress of EMT-related signaling pathways regulated by lncRNAs in PCa, including AR signaling, STAT3 signaling, Wnt/β-catenin signaling, PTEN/PI3K/AKT signaling, TGF-β/Smad and NF-κB signaling pathways. Furthermore, we summarize four modes of how lncRNAs participate in the EMT process of PCa via regulating relevant signaling pathways.
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Affiliation(s)
- Dexin Shen
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
| | - Hongwei Peng
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Caixia Xia
- President’s Office, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhao Deng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xi Tong
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Gang Wang
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
- Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China
- *Correspondence: Gang Wang, ; Kaiyu Qian,
| | - Kaiyu Qian
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
- Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China
- *Correspondence: Gang Wang, ; Kaiyu Qian,
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4
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Exosomes Derived from Tumor Cells Initiate Breast Cancer Cell Metastasis and Chemoresistance through a MALAT1-Dependent Mechanism. JOURNAL OF ONCOLOGY 2022; 2022:5483523. [PMID: 35813865 PMCID: PMC9262507 DOI: 10.1155/2022/5483523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 05/16/2022] [Indexed: 11/17/2022]
Abstract
Background. Chemoresistance poses a great hindrance in the treatment of breast cancer (BC). Interestingly, exosome (Exo)-mediated transfer of long noncoding RNAs (lncRNAs) has been reported to regulate chemoresistance in diverse diseases. We herein investigate the potential role of lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) transferred by BC cell-derived Exo in chemoresistance of BC cells. Methods. BC-related lncRNAs were identified. Exosomes were isolated and verified from BC cells. The expression patterns of MALAT1 were then examined in the adriamycin (ADR)-sensitive and resistant cells and the isolated Exo, followed by the analysis of the downstream microRNA (miRNA) of MALAT1. The role and mechanism of MALAT1 transmitted by BC cell-derived Exo in BC cell metastasis and chemoresistance were assessed. Results. MALAT1 was highly expressed in BC cells and their Exo. In addition, MALAT1 delivered by BC cell-derived Exo augmented the malignant properties and chemoresistance of BC cells. Mechanistically, MALAT1 bound to miR-1-3p and limited the miR-1-3p expression, which sequentially targeted the vasodilator-stimulated phosphoprotein (VASP) protein. Moreover, silencing of VASP inhibited the activation of the RAP1 member of RAS oncogene family (Rap1) signaling pathway, which led to the attenuation of BC cell malignant properties and chemoresistance. In vivo assay further validated the tumor-promoting effect of Exo-MALAT1 via regulation of the miR-1-3p/VASP/Rap1 axis. Conclusion. Collectively, MALAT1 loaded by BC cell-derived Exo can accelerate BC cell metastasis and chemoresistance via disruption of miR-1-3p-mediated inhibition of the VASP/Rap1 signaling axis.
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An C, Wang I, Li X, Xia R, Deng F. Long non-coding RNA in prostate cancer. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2022; 10:170-179. [PMID: 35874287 PMCID: PMC9301060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/15/2022] [Indexed: 06/15/2023]
Abstract
Prostate cancer is the most frequently diagnosed cancer in males and its development and progression remains an important area of study. Recently, long non-coding RNAs (lncRNAs) have been evidenced as key players in cancer pathogenesis. Specifically, dysregulation of long non-coding RNA (lncRNA) expression has shown to affect tumor proliferation and metastasis, acting as either tumor suppressors or oncogenes. However, its specific mechanisms and functions in prostate cancer remain unclear. This review provides an overview of currently available information on prostate cancer-related lncRNAs, including GAS5, GAS-007, MEG3, PCA3, PCAT14, PCAT1, PVT1, UCA1, SChLAP1, MALAT1, HOTAIR, and NEAT1. Notable tumor growth inhibitors include GAS5 and MEG3. GAS5 is evidenced to interfere with the AKT/MTOR signaling pathway through targeting microRNA mir-103. MEG3, however, is proposed to inhibit the cycle, sponge miR-9-5p, and induce gene silencing. PCAT1, PVT1, and UCA1 are important tumor growth promoters. PCAT1 is indicated to be a transcriptional repressor, a mir-145-5P sponge, and a P13K/AKT pathway activator. Studies suggest that PVT1 acts via microRNA targeting and regulating proliferating cell nuclear antigen. UCA1 may sponge miR-204 and miR-331-3p as well as regulate myosin VI. Thorough understanding of these lncRNAs may elucidate new aspects of prostate cancer pathology and serve a pivotal role in developing novel diagnostic and prognostic techniques.
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Affiliation(s)
- Christine An
- Institute of Human Nutrition, Columbia UniversityNew York, NY, USA
| | - Ian Wang
- State University of New York, Hofstra UniversityHempstead, NY, USA
| | - Xin Li
- Department of Molecular Pathobiology, New York University College of DentistryNY, USA
| | - Rong Xia
- Department of Pathology and Urology, New York University School of MedicineNY, USA
| | - Fangming Deng
- Department of Pathology and Urology, New York University School of MedicineNY, USA
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Ashjari D, Karamali N, Rajabinejad M, Hassani SS, Afshar Hezarkhani L, Afshari D, Gorgin Karaji A, Salari F, Rezaiemanesh A. The axis of long non-coding RNA MALAT1/miR-1-3p/CXCR4 is dysregulated in patients with diabetic neuropathy. Heliyon 2022; 8:e09178. [PMID: 35368523 PMCID: PMC8969120 DOI: 10.1016/j.heliyon.2022.e09178] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 12/28/2021] [Accepted: 03/18/2022] [Indexed: 01/02/2023] Open
Abstract
Background Diabetic neuropathy (DN) is a prevalent complication of diabetes mellitus characterized by pain and inflammation. Long non-coding RNAs (lncRNAs) have been associated with DN. This study aimed to investigate transcript levels of Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), microRNA (miR)-1-3p, and C-X-C motif chemokine receptor 4 (CXCR4) in the DN patients and type 2 diabetes mellitus (T2DM) cases without neuropathy. Methods Here, 20 cases with DN and 20 T2DM subjects without neuropathy (as the control group) were included. Total RNA was extracted from peripheral blood mononuclear cells (PBMCs) of all participants. The expression levels of targets were evaluated by Real-time-PCR. Results Results showed that MALAT1 (Fold change = 2.47, P = 0.03) and CXCR4 (Fold change = 1.65, P = 0.023) were significantly upregulated, while miR-1-3p was downregulated (Fold change = 0.9, P = 0.028) in whole blood samples from DN patients compared to the control group. A significant correlation was found between transcript levels of MALAT1 and CXCR4 (rho = 0.84; P < 0.0001). Conclusions This study suggests a possible involvement of the MALAT1/miR-1-3p/CXCR4 axis in the pathogenesis of DN.
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Affiliation(s)
- Donya Ashjari
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Negin Karamali
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Misagh Rajabinejad
- Student Research Committee, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyedeh Sara Hassani
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Leila Afshar Hezarkhani
- Department of Neurology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Daryoush Afshari
- Department of Neurology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ali Gorgin Karaji
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farhad Salari
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Rezaiemanesh
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
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7
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Marhold M, Udovica S, Topakian T, Horak P, Horvat R, Tomasich E, Heller G, Krainer M. MALAT1 Fusions and Basal Cells Contribute to Primary Resistance against Androgen Receptor Inhibition in TRAMP Mice. Cancers (Basel) 2022; 14:cancers14030749. [PMID: 35159020 PMCID: PMC8833778 DOI: 10.3390/cancers14030749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 01/26/2022] [Accepted: 01/29/2022] [Indexed: 02/06/2023] Open
Abstract
Simple Summary We deeply characterized a frequently used mouse model of prostate cancer and found cellular and molecular regulators of resistance against antihormonal treatment, such as basal cell function and MALAT1 gene fusions. As these mechanisms also occur in human disease, our findings highlight the importance of this model for human cancer and may be helpful for future research focusing on overcoming antihormonal treatment resistance. Abstract Targeting testosterone signaling through androgen deprivation therapy (ADT) or antiandrogen treatment is the standard of care for advanced prostate cancer (PCa). Although the large majority of patients initially respond to ADT and/or androgen receptor (AR) blockade, most patients suffering from advanced PCa will experience disease progression. We sought to investigate drivers of primary resistance against antiandrogen treatment in the TRAMP mouse model, an SV-40 t-antigen driven model exhibiting aggressive variants of prostate cancer, castration resistance, and neuroendocrine differentiation upon antihormonal treatment. We isolated primary tumor cell suspensions from adult male TRAMP mice and subjected them to organoid culture. Basal and non-basal cell populations were characterized by RNA sequencing, Western blotting, and quantitative real-time PCR. Furthermore, effects of androgen withdrawal and enzalutamide treatment were studied. Basal and luminal TRAMP cells exhibited distinct molecular signatures and gave rise to organoids with distinct phenotypes. TRAMP cells exhibited primary resistance against antiandrogen treatment. This was more pronounced in basal cell-derived TRAMP organoids when compared to luminal cell-derived organoids. Furthermore, we found MALAT1 gene fusions to be drivers of antiandrogen resistance in TRAMP mice through regulation of AR. Summarizing, TRAMP tumor cells exhibited primary resistance towards androgen inhibition enhanced through basal cell function and MALAT1 gene fusions.
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Affiliation(s)
- Maximilian Marhold
- Division of Oncology, Department for Medicine I, Medical University of Vienna, A-1090 Vienna, Austria; (T.T.); (E.T.); (G.H.); (M.K.)
- Comprehensive Cancer Center Vienna, Medical University of Vienna, A-1090 Vienna, Austria
- Correspondence:
| | - Simon Udovica
- Clinic of Internal Medicine I and Wilhelminen Cancer Research Institute, Klinik Ottakring, A-1090 Vienna, Austria;
| | - Thais Topakian
- Division of Oncology, Department for Medicine I, Medical University of Vienna, A-1090 Vienna, Austria; (T.T.); (E.T.); (G.H.); (M.K.)
- Comprehensive Cancer Center Vienna, Medical University of Vienna, A-1090 Vienna, Austria
| | - Peter Horak
- National Tumor Center (NCT), DKFZ, 69120 Heidelberg, Germany;
| | - Reinhard Horvat
- Institute for Pathology, Medical University of Vienna, A-1090 Vienna, Austria;
| | - Erwin Tomasich
- Division of Oncology, Department for Medicine I, Medical University of Vienna, A-1090 Vienna, Austria; (T.T.); (E.T.); (G.H.); (M.K.)
- Comprehensive Cancer Center Vienna, Medical University of Vienna, A-1090 Vienna, Austria
| | - Gerwin Heller
- Division of Oncology, Department for Medicine I, Medical University of Vienna, A-1090 Vienna, Austria; (T.T.); (E.T.); (G.H.); (M.K.)
- Comprehensive Cancer Center Vienna, Medical University of Vienna, A-1090 Vienna, Austria
| | - Michael Krainer
- Division of Oncology, Department for Medicine I, Medical University of Vienna, A-1090 Vienna, Austria; (T.T.); (E.T.); (G.H.); (M.K.)
- Comprehensive Cancer Center Vienna, Medical University of Vienna, A-1090 Vienna, Austria
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8
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Crosstalk between Long Non Coding RNAs, microRNAs and DNA Damage Repair in Prostate Cancer: New Therapeutic Opportunities? Cancers (Basel) 2022; 14:cancers14030755. [PMID: 35159022 PMCID: PMC8834032 DOI: 10.3390/cancers14030755] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Non-coding RNAs are a type of genetic material that doesn’t make protein, but performs diverse regulatory functions. In prostate cancer, most treatments target proteins, and resistance to such therapies is common, leading to disease progression. Targeting non-coding RNAs may provide alterative treatment options and potentially overcome drug resistance. Major types of non-coding RNAs include tiny ‘microRNAs’ and much longer ‘long non-coding RNAs’. Scientific studies have shown that these form a major part of the human genome, and play key roles in altering gene activity and determining the fate of cells. Importantly, in cancer, their activity is altered. Recent evidence suggests that microRNAs and long non-coding RNAs play important roles in controlling response to DNA damage. In this review, we explore how different types of non-coding RNA interact to control cell DNA damage responses, and how this knowledge may be used to design better prostate cancer treatments and tests. Abstract It is increasingly appreciated that transcripts derived from non-coding parts of the human genome, such as long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), are key regulators of biological processes both in normal physiology and disease. Their dysregulation during tumourigenesis has attracted significant interest in their exploitation as novel cancer therapeutics. Prostate cancer (PCa), as one of the most diagnosed malignancies and a leading cause of cancer-related death in men, continues to pose a major public health problem. In particular, survival of men with metastatic disease is very poor. Defects in DNA damage response (DDR) pathways culminate in genomic instability in PCa, which is associated with aggressive disease and poor patient outcome. Treatment options for metastatic PCa remain limited. Thus, researchers are increasingly targeting ncRNAs and DDR pathways to develop new biomarkers and therapeutics for PCa. Increasing evidence points to a widespread and biologically-relevant regulatory network of interactions between lncRNAs and miRNAs, with implications for major biological and pathological processes. This review summarises the current state of knowledge surrounding the roles of the lncRNA:miRNA interactions in PCa DDR, and their emerging potential as predictive and diagnostic biomarkers. We also discuss their therapeutic promise for the clinical management of PCa.
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Slabáková E, Kahounová Z, Procházková J, Souček K. Regulation of Neuroendocrine-like Differentiation in Prostate Cancer by Non-Coding RNAs. Noncoding RNA 2021; 7:ncrna7040075. [PMID: 34940756 PMCID: PMC8704250 DOI: 10.3390/ncrna7040075] [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: 09/07/2021] [Revised: 11/18/2021] [Accepted: 11/29/2021] [Indexed: 12/21/2022] Open
Abstract
Neuroendocrine prostate cancer (NEPC) represents a variant of prostate cancer that occurs in response to treatment resistance or, to a much lesser extent, de novo. Unravelling the molecular mechanisms behind transdifferentiation of cancer cells to neuroendocrine-like cancer cells is essential for development of new treatment opportunities. This review focuses on summarizing the role of small molecules, predominantly microRNAs, in this phenomenon. A published literature search was performed to identify microRNAs, which are reported and experimentally validated to modulate neuroendocrine markers and/or regulators and to affect the complex neuroendocrine phenotype. Next, available patients’ expression datasets were surveyed to identify deregulated microRNAs, and their effect on NEPC and prostate cancer progression is summarized. Finally, possibilities of miRNA detection and quantification in body fluids of prostate cancer patients and their possible use as liquid biopsy in prostate cancer monitoring are discussed. All the addressed clinical and experimental contexts point to an association of NEPC with upregulation of miR-375 and downregulation of miR-34a and miR-19b-3p. Together, this review provides an overview of different roles of non-coding RNAs in the emergence of neuroendocrine prostate cancer.
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10
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Kase-Kato I, Asai S, Minemura C, Tsuneizumi K, Oshima S, Koma A, Kasamatsu A, Hanazawa T, Uzawa K, Seki N. Molecular Pathogenesis of the Coronin Family: CORO2A Facilitates Migration and Invasion Abilities in Oral Squamous Cell Carcinoma. Int J Mol Sci 2021; 22:12684. [PMID: 34884487 PMCID: PMC8657730 DOI: 10.3390/ijms222312684] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 11/17/2021] [Accepted: 11/22/2021] [Indexed: 12/13/2022] Open
Abstract
In humans, the coronin family is composed of seven proteins containing WD-repeat domains that regulate actin-based cellular processes. Some members of the coronin family are closely associated with cancer cell migration and invasion. The Cancer Genome Atlas (TCGA) analysis revealed that CORO1C, CORO2A, and CORO7 were significantly upregulated in oral squamous cell carcinoma (OSCC) tissues (p < 0.05). Moreover, the high expression of CORO2A was significantly predictive of the 5-year survival rate of patients with OSCC (p = 0.0203). Overexpression of CORO2A was detected in OSCC clinical specimens by immunostaining. siRNA-mediated knockdown of CORO2A suppressed cancer cell migration and invasion abilities. Furthermore, we investigated the involvement of microRNAs (miRNAs) in the molecular mechanism underlying CORO2A overexpression in OSCC cells. TCGA analysis confirmed that tumor-suppressive miR-125b-5p and miR-140-5p were significantly downregulated in OSCC tissues. Notably, these miRNAs bound directly to the 3'-UTR of CORO2A and controlled CORO2A expression in OSCC cells. In summary, we found that aberrant expression of CORO2A facilitates the malignant transformation of OSCC cells, and that downregulation of tumor-suppressive miRNAs is involved in CORO2A overexpression. Elucidation of the interaction between genes and miRNAs will help reveal the molecular pathogenesis of OSCC.
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Affiliation(s)
- Ikuko Kase-Kato
- Department of Oral Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (I.K.-K.); (C.M.); (K.T.); (S.O.); (A.K.); (A.K.); (K.U.)
| | - Shunichi Asai
- Department of Functional Genomics, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
- Department of Otorhinolaryngology/Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
| | - Chikashi Minemura
- Department of Oral Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (I.K.-K.); (C.M.); (K.T.); (S.O.); (A.K.); (A.K.); (K.U.)
| | - Kenta Tsuneizumi
- Department of Oral Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (I.K.-K.); (C.M.); (K.T.); (S.O.); (A.K.); (A.K.); (K.U.)
| | - Sachi Oshima
- Department of Oral Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (I.K.-K.); (C.M.); (K.T.); (S.O.); (A.K.); (A.K.); (K.U.)
| | - Ayaka Koma
- Department of Oral Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (I.K.-K.); (C.M.); (K.T.); (S.O.); (A.K.); (A.K.); (K.U.)
| | - Atsushi Kasamatsu
- Department of Oral Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (I.K.-K.); (C.M.); (K.T.); (S.O.); (A.K.); (A.K.); (K.U.)
| | - Toyoyuki Hanazawa
- Department of Otorhinolaryngology/Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
| | - Katsuhiro Uzawa
- Department of Oral Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (I.K.-K.); (C.M.); (K.T.); (S.O.); (A.K.); (A.K.); (K.U.)
| | - Naohiko Seki
- Department of Functional Genomics, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
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Actin-Binding Proteins as Potential Biomarkers for Chronic Inflammation-Induced Cancer Diagnosis and Therapy. ACTA ACUST UNITED AC 2021; 2021:6692811. [PMID: 34194957 PMCID: PMC8203385 DOI: 10.1155/2021/6692811] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 04/13/2021] [Accepted: 05/18/2021] [Indexed: 12/15/2022]
Abstract
Actin-binding proteins (ABPs), by interacting with actin, regulate the polymerization, depolymerization, bundling, and cross-linking of actin filaments, directly or indirectly, thereby mediating the maintenance of cell morphology, cell movement, and many other biological functions. Consequently, these functions of ABPs help regulate cancer cell invasion and metastasis when cancer occurs. In recent years, a variety of ABPs have been found to be abnormally expressed in various cancers, indicating that the detection and interventions of unusual ABP expression to alter this are available for the treatment of cancer. The early stages of most cancer development involve long-term chronic inflammation or repeated stimulation. This is the case for breast cancer, gastric cancer, lung cancer, prostate cancer, liver cancer, esophageal cancer, pancreatic cancer, melanoma, and colorectal cancer. This article discusses the relationship between chronic inflammation and the above-mentioned cancers, emphatically introduces relevant research on the abnormal expression of ABPs in chronic inflammatory diseases, and reviews research on the expression of different ABPs in the above-mentioned cancers. Furthermore, there is a close relationship between ABP-induced inflammation and cancer. In simple terms, abnormal expression of ABPs contributes to the chronic inflammation developing into cancer. Finally, we provide our viewpoint regarding these unusual ABPs serving as potential biomarkers for chronic inflammation-induced cancer diagnosis and therapy, and interventions to reverse the abnormal expression of ABPs represent a potential approach to preventing or treating the corresponding cancers.
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Rong F, Liu L, Zou C, Zeng J, Xu Y. MALAT1 Promotes Cell Tumorigenicity Through Regulating miR-515-5p/EEF2 Axis in Non-Small Cell Lung Cancer. Cancer Manag Res 2020; 12:7691-7701. [PMID: 32943920 PMCID: PMC7468487 DOI: 10.2147/cmar.s242425] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 08/06/2020] [Indexed: 12/12/2022] Open
Abstract
Background Previous studies suggested long noncoding RNA metastasis associated with lung adenocarcinoma transcript 1 (lncRNA MALAT1) acted as a tumor promoter to promote cell carcinogenesis in non-small cell lung cancer (NSCLC). MALAT1 was found to exist in serum exosomes of several cancers. However, the role of exosomal-derived MALAT1 in NSCLC remains poorly understood. Materials and Methods Exosomes were isolated using the ExoQuick precipitation kit. Western blot was used to detect the protein expression of CD3, CD63, apoptosis- and metastasis-related protein. The expression of MALAT1, microRNA (miR)-515-5p and eukaryotic elongation factor 2 (EEF2) mRNA was detected using quantitative real-time polymerase chain reaction. Cell viability, apoptosis, or invasion were measured using 3-(4, 5)-dimethylthiahiazo (-z-y1)-3, 5-di-phenytetrazoliumromide (MTT) assay, flow cytometry or transwell assay, respectively. The interaction between miR-515-5p and MALAT1 or EEF2 was confirmed by dual-luciferase reporter assay. In vivo experiments were conducted through the murine xenograft model. Results MALAT1 was highly expressed in serum and cell exosomes from NSCLC patients. MALAT1 knockdown repressed cell proliferation, invasion and induced cell apoptosis in vitro as well as inhibited tumor growth in vivo in NSCLC. Subsequently, we confirmed that MALAT1 was a sponge of miR-515-5p, and EEF2 was a target of miR-515-5p. Furthermore, MALAT1 served as a sponge of miR-515-5p to regulate EEF2 expression in NSCLC cells. More importantly, MALAT1 deletion performed anti-tumor effects by interacting with miR-515-5p/EEF2 axis in vitro and in vivo in NSCLC. Conclusion MALAT1 knockdown repressed NSCLC tumorigenicity by inhibiting cell proliferation, invasion and promoting apoptosis through regulating miR-515-5p/EEF2, besides, MALAT1 was highly enriched in exosomes of NSCLC, suggesting a possible molecular-targeted therapy for NSCLC patients.
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Affiliation(s)
- Feng Rong
- Department of Respiratory, Xiantao First People's Hospital Affiliated to Changjiang University, Xiantao, Hubei, People's Republic of China
| | - Liang Liu
- Department of Respiratory, Xiantao First People's Hospital Affiliated to Changjiang University, Xiantao, Hubei, People's Republic of China
| | - Can Zou
- Department of Respiratory, Xiantao First People's Hospital Affiliated to Changjiang University, Xiantao, Hubei, People's Republic of China
| | - Jing Zeng
- Department of Respiratory, Xiantao First People's Hospital Affiliated to Changjiang University, Xiantao, Hubei, People's Republic of China
| | - Yasheng Xu
- Department of Respiratory, Xiantao First People's Hospital Affiliated to Changjiang University, Xiantao, Hubei, People's Republic of China
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Barth DA, Juracek J, Slaby O, Pichler M, Calin GA. lncRNA and Mechanisms of Drug Resistance in Cancers of the Genitourinary System. Cancers (Basel) 2020; 12:cancers12082148. [PMID: 32756406 PMCID: PMC7463785 DOI: 10.3390/cancers12082148] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 07/27/2020] [Accepted: 07/30/2020] [Indexed: 02/08/2023] Open
Abstract
Available systemic treatment options for cancers of the genitourinary system have experienced great progress in the last decade. However, a large proportion of patients eventually develop resistance to treatment, resulting in disease progression and shorter overall survival. Biomarkers indicating the increasing resistance to cancer therapies are yet to enter clinical routine. Long non-coding RNAs (lncRNA) are non-protein coding RNA transcripts longer than 200 nucleotides that exert multiple types of regulatory functions of all known cellular processes. Increasing evidence supports the role of lncRNAs in cancer development and progression. Additionally, their involvement in the development of drug resistance across various cancer entities, including genitourinary malignancies, are starting to be discovered. Consequently, lncRNAs have been suggested as factors in novel therapeutic strategies to overcome drug resistance in cancer. In this review, the existing evidences on lncRNAs and their involvement in mechanisms of drug resistance in cancers of the genitourinary system, including renal cell carcinoma, bladder cancer, prostate cancer, and testicular cancer, will be highlighted and discussed to facilitate and encourage further research in this field. We summarize a significant number of lncRNAs with proposed pathways in drug resistance and available reported studies.
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Affiliation(s)
- Dominik A. Barth
- Research Unit of Non-Coding RNAs and Genome Editing in Cancer, Division of Clinical Oncology, Department of Medicine, Comprehensive Cancer Center Graz, Medical University of Graz, 8036 Graz, Austria; (D.A.B.); (M.P.)
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Jaroslav Juracek
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, 62500 Brno, Czech Republic;
- Central European Institute of Technology, Masaryk University, 62500 Brno, Czech Republic
| | - Ondrej Slaby
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, 62500 Brno, Czech Republic;
- Central European Institute of Technology, Masaryk University, 62500 Brno, Czech Republic
| | - Martin Pichler
- Research Unit of Non-Coding RNAs and Genome Editing in Cancer, Division of Clinical Oncology, Department of Medicine, Comprehensive Cancer Center Graz, Medical University of Graz, 8036 Graz, Austria; (D.A.B.); (M.P.)
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - George A. Calin
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- Correspondence:
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Wang Z, Zhang C, Chang J, Tian X, Zhu C, Xu W. LncRNA EMX2OS, Regulated by TCF12, Interacts with FUS to Regulate the Proliferation, Migration and Invasion of Prostate Cancer Cells Through the cGMP-PKG Signaling Pathway. Onco Targets Ther 2020; 13:7045-7056. [PMID: 32801740 PMCID: PMC7398891 DOI: 10.2147/ott.s243552] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 06/11/2020] [Indexed: 12/21/2022] Open
Abstract
Background LncRNA EMX2OS (EMX2 opposite strand/antisense RNA) is notably downregulated in prostate cancer (PCa) tissues and may be regarded as a potential molecular biomarker for diagnosis and prognosis. However, its exact role in regulating the development of PCa is obscure. Methods The EMX2OS expression was assessed in PCa tissues, paracancer tissues, PCa cells and normal prostate epithelial cells by qPCR. Gain- and loss-of-function experiments were performed to investigate the role of EMX2OS and FUS in cGMP-PKG (cyclic guanosine monophosphate-dependent protein kinase)-mediated proliferation, invasion, and migration in human PCa cell lines DU145 and PC3. Then, the interaction of transcription factor 12 (TCF12) with EMX2OS promoter was confirmed by using the dual-luciferase reporter and chromatin immunoprecipitation (ChIP) assays. RNA binding protein immunoprecipitation and RNA pull-down assays were used to verify the interaction between EMX2OS and FUS protein. Finally, the role of EMX2OS and FUS in tumor growth in vivo was validated in a xenograft nude mouse model. Results TCF12 and EMX2OS were both downregulated in PCa tissues and cells, and they negatively regulated cell proliferation, migration and invasion, and activated cGMP-PKG pathway in DU145 and PC3 cells. TCF12 was a transcription factor of EMX2OS. TCF12 and EMX2OS overexpression both down-regulated cell proliferation, migration and invasion, and activated cGMP-PKG pathway in DU145 and PC3 cells. Furthermore, EMX2OS directly bound with FUS protein and had a synergy effect with FUS protein on cGMP-PKG-mediated cell functions, which could be suppressed by (D)-DT-2 (a cGMP-PKG inhibitor). In addition, the overexpression of FUS or EMX2OS individually markedly decreased the volume and weight of tumors in vivo, and co-overexpression of them further inhibited tumor growth. Conclusion EMX2OS, transcriptionally regulated by TCF12, played a synergy role with FUS protein in regulating the proliferation, migration and invasion of PCa cells by activating the cGMP-PKG pathway.
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Affiliation(s)
- Zhiqiang Wang
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Chaowei Zhang
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Junkai Chang
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Xin Tian
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Chaoyang Zhu
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Weibo Xu
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
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He M, Shen J, Zhang C, Chen Y, Wang W, Tao K. Long-Chain Non-Coding RNA Metastasis-Related Lung Adenocarcinoma Transcript 1 (MALAT1) Promotes the Proliferation and Migration of Human Pulmonary Artery Smooth Muscle Cells (hPASMCs) by Regulating the MicroRNA-503 (miR-503)/Toll-Like Receptor 4 (TLR4) Signal Axis. Med Sci Monit 2020; 26:e923123. [PMID: 32712618 PMCID: PMC7377003 DOI: 10.12659/msm.923123] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background To study the role of the long-chain noncoding RNA (lncRNA) metastasis-related lung adenocarcinoma transcript 1 (MALAT1), microRNA-503 (miR-503), Toll-like receptor 4 (TLR4) signal axis in the pathogenesis of pulmonary arterial hypertension (PAH). Material/Methods Total RNA was extracted from the plasma of 45 PAH patients and 45 healthy subjects, and the expression of lncRNA MALAT1 and miR-503 was measured by quantitative real-time polymerase chain reaction (qRT-PCR). The effects of lncRNA MALAT1 and miR-503 on Toll-like receptor 4 (TLR4) and the proliferation, migration, and apoptosis of human pulmonary artery smooth muscle cells (hPASMCs) were tested following in vitro transfection of hPASMCs. Results lncRNA MALAT1 was highly expressed in the plasma of PAH patients and in hypoxia-induced hPASMCs. Silencing lncRNA MALAT1 inhibited the proliferation and migration of hPASMC cells while promoting their apoptosis. MiR-503 is underexpressed in plasma and hPASMCs of patients with PAH. TLR4 was a target gene of miR-503 and was highly expressed in peripheral blood mononuclear cells (PBMCs) of PAH patients. lncRNA MALAT1 was a “molecular sponge” of miR-503, regulating the expression of TLR4 and the proliferation, migration, and apoptosis of hPASMCs through miR-503. Conclusions lncRNA MALAT1 promotes the proliferation and migration of hPASMCs and inhibits their apoptosis by inhibiting the miR-503/TLR4 signal axis.
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Affiliation(s)
- Meng He
- Department of Respiratory Medicine, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, Zhejiang, China (mainland)
| | - Juxin Shen
- Department of Respiratory Medicine, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, Zhejiang, China (mainland)
| | - Chunyi Zhang
- Department of Respiratory Medicine, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, Zhejiang, China (mainland)
| | - Yefeng Chen
- Department of Respiratory Medicine, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, Zhejiang, China (mainland)
| | - Weisi Wang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland)
| | - Kelong Tao
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, Zhejiang, China (mainland)
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Tian L, Chen M, He Q, Yan Q, Zhai C. MicroRNA‑199a‑5p suppresses cell proliferation, migration and invasion by targeting ITGA3 in colorectal cancer. Mol Med Rep 2020; 22:2307-2317. [PMID: 32705201 PMCID: PMC7411411 DOI: 10.3892/mmr.2020.11323] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 03/04/2020] [Indexed: 02/07/2023] Open
Abstract
As a member of the integrin family, integrin α3β1 (ITGA3) has been linked to intercellular communication and serves an important role in the signaling among cells and the extracellular matrix. MicroRNA (miR)-199a-5p has been demonstrated to be related to the pathogenesis and progression of multiple malignant diseases. However, the biological functions of miR-199a-5p and ITGA3 in colorectal cancer (CRC) have rarely been reported. The aim of the present study was to explore the roles of miR-199a-5p and ITGA3 in CRC. Immunohistochemistry staining and western blotting were applied to detect the protein expression of ITGA3 in CRC tissues and cells. Reverse transcription-quantitative PCR was performed to investigate the expression of miR-199a-5p and ITGA3 mRNA. HCT-116 cells were transfected with miR-199a-5p mimics, mimics control, short hairpin RNA targeting ITGA3, or pcDNA-ITGA3 for the functional experiments. Dual luciferase reporter assay was applied to confirm whether miR-199a-5p targeted the 3′ untranslated region (3′UTR) of ITGA3. The MTT, Transwell and wound healing assays were used to evaluate the proliferation, invasion and migration of CRC cells. Immunofluorescence assay was used to monitor the epithelial-mesenchymal transition (EMT) biomarker expression. The results demonstrated downregulation of miR-199a-5p and upregulation of ITGA3 in CRC tissues and cell lines. miR-199a-5p mimics and knockdown of ITGA3 suppressed the proliferation, invasion and migration of CRC cells. Bioinformatics analysis and luciferase reporter assay indicated that miR-199a-5p targeted the 3′UTR of the ITGA3 transcript, and overexpression of ITGA3 reversed the tumor-suppressive effects of miR-199a-5p elevation. In addition, the immunofluorescence assay suggested that miR-199a-5p mimics suppressed the EMT of CRC cells, whereas the overexpression of ITGA3 restored this effect. In conclusion, miR-199a-5p may act as a tumor suppressor by targeting and negatively regulating ITGA3 in CRC.
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Affiliation(s)
- Lijun Tian
- Department of Colorectal and Anus Surgery, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030001, P.R. China
| | - Mingtong Chen
- Department of Gastroenterology, Jinhua People's Hospital, Jinhua, Zhejiang 321000, P.R. China
| | - Qiang He
- Department of Colorectal and Anus Surgery, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030001, P.R. China
| | - Qiuliang Yan
- Department of General Surgery, Jinhua People's Hospital, Jinhua, Zhejiang 321000, P.R. China
| | - Chunbao Zhai
- Department of Colorectal and Anus Surgery, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030001, P.R. China
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Lu X, Chen D, Yang F, Xing N. Quercetin Inhibits Epithelial-to-Mesenchymal Transition (EMT) Process and Promotes Apoptosis in Prostate Cancer via Downregulating lncRNA MALAT1. Cancer Manag Res 2020; 12:1741-1750. [PMID: 32210615 PMCID: PMC7069588 DOI: 10.2147/cmar.s241093] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/21/2020] [Indexed: 12/22/2022] Open
Abstract
Background Prostate cancer (PC) is one of the most common carcinomas in men worldwide. The lack of effective therapies urges the development of novel therapeutic options against PC. Quercetin (Quer) is a flavonoid compound that has been shown to effectively inhibit PC in vitro and in vivo. However, the underlying mechanisms await elucidation. Long non-coding RNA MALAT1 has been reported as an oncogenic target in multiple types of cancers, including PC. Previous data showed that quercetin promoted the apoptosis of fibroblast-like synoviocytes by upregulating MALAT1 in rheumatoid arthritis. However, we speculate that mechanisms are different in PC. Materials and Methods Human PC cell line PC-3 and its xenograft tumor were chosen as in vitro and in vivo models for PC. A series of in vitro and in vivo functional experiments were carried out to elucidate the role of MALAT1 in quercetin treatment against PC. Western blot was performed to measure the expression of related proteins to explore underlying molecular mechanisms. Results We showed for the first time that MALAT1 expression was significantly downregulated in quercetin-treated PC cells in a dose- and time-dependent manner. Also, quercetin inhibited the proliferation of PC cells and the growth of xenograft tumors. Moreover, quercetin suppressed EMT process, promoted apoptosis and deactivated PI3K/Akt signaling pathway during the progression of PC. MALAT1 overexpression in PC cells resulted in the resistance against quercetin treatment. Conclusion Our study illustrated, for the first time, that MALAT1 played an important role in quercetin treatment against PC by inhibiting EMT process and promoting apoptosis, providing a new molecular basis for the application of quercetin in PC treatment.
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Affiliation(s)
- Xinxing Lu
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Dong Chen
- Department of Urology, Chinese Academy of Medical Sciences Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Feiya Yang
- Department of Urology, Chinese Academy of Medical Sciences Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Nianzeng Xing
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China.,Department of Urology, Chinese Academy of Medical Sciences Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
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Skrzypek K, Majka M. Interplay among SNAIL Transcription Factor, MicroRNAs, Long Non-Coding RNAs, and Circular RNAs in the Regulation of Tumor Growth and Metastasis. Cancers (Basel) 2020; 12:E209. [PMID: 31947678 PMCID: PMC7017348 DOI: 10.3390/cancers12010209] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/20/2019] [Accepted: 01/09/2020] [Indexed: 02/06/2023] Open
Abstract
SNAIL (SNAI1) is a zinc finger transcription factor that binds to E-box sequences and regulates the expression of genes. It usually acts as a gene repressor, but it may also activate the expression of genes. SNAIL plays a key role in the regulation of epithelial to mesenchymal transition, which is the main mechanism responsible for the progression and metastasis of epithelial tumors. Nevertheless, it also regulates different processes that are responsible for tumor growth, such as the activity of cancer stem cells, the control of cell metabolism, and the regulation of differentiation. Different proteins and microRNAs may regulate the SNAIL level, and SNAIL may be an important regulator of microRNA expression as well. The interplay among SNAIL, microRNAs, long non-coding RNAs, and circular RNAs is a key event in the regulation of tumor growth and metastasis. This review for the first time discusses different types of regulation between SNAIL and non-coding RNAs with a focus on feedback loops and the role of competitive RNA. Understanding these mechanisms may help develop novel therapeutic strategies against cancer based on microRNAs.
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Affiliation(s)
- Klaudia Skrzypek
- Jagiellonian University Medical College, Faculty of Medicine, Institute of Pediatrics, Department of Transplantation, Wielicka 265, 30-663 Cracow, Poland
| | - Marcin Majka
- Jagiellonian University Medical College, Faculty of Medicine, Institute of Pediatrics, Department of Transplantation, Wielicka 265, 30-663 Cracow, Poland
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