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Luo G, Chen J, Ren Z. Regulation of Methylase METTL3 on Fat Deposition. Diabetes Metab Syndr Obes 2021; 14:4843-4852. [PMID: 34984016 PMCID: PMC8709552 DOI: 10.2147/dmso.s344472] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/08/2021] [Indexed: 11/23/2022] Open
Abstract
N6-methyladenosine (m6A) is the most prevalent and abundant type of internal post-transcriptional RNA modification in eukaryotic cells. METTL3 is a methylation modifying enzyme, which can directly or indirectly affect biological processes, such as RNA degradation, translation and splicing. In addition, it was found that 67% of 3'-UTR regions containing m6A sites had at least one miRNA binding site, and the number of m6A at 3'-UTR sites was closely related to the binding sites of miRNA. With the improvement of human living standards, obesity has become a very serious and urgent problem. The essence of obesity is the accumulation of excess fat. Exploring the origin and development mechanisms of adipocyte from the perspective of fat deposition has always been a hotspot in the field of adipocyte research. The aim of the present review is to focus on METTL3 regulating fat deposition through mRNA/adipocyte differentiation axis and pri-miRNA/pre-miRNA/target genes/adipocyte differentiation and to provide a theoretical basis according to the currently available literature for further exploring this association. This review may provide new insights for obesity, fat deposition disease and molecular breeding.
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Affiliation(s)
- Gang Luo
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People’s Republic of China
| | - Jialing Chen
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People’s Republic of China
| | - Zhanjun Ren
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People’s Republic of China
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2
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Cui P, Dai X, Liu R, Cao H. LncRNA LINC00888 upregulation predicts a worse survival of laryngeal cancer patients and accelerates the growth and mobility of laryngeal cancer cells through regulation of miR-378g/TFRC. J Biochem Mol Toxicol 2021; 35:e22878. [PMID: 34472153 DOI: 10.1002/jbt.22878] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/29/2021] [Accepted: 07/29/2021] [Indexed: 12/15/2022]
Abstract
In this study, we aimed to detect the clinical significance and potential mechanism of LINC00888 in laryngeal cancer. Data from The Cancer Genome Atlas (TCGA) afforded the expression of LINC00888 in laryngeal cancer samples. The clinical significance of LINC00888 expression in laryngeal cancer was demonstrated by χ2 , Cox analysis, and Kaplan-Meier. The downstream targets of LINC00888 were identified based on analysis from bioinformatics and laryngeal cancer-related TCGA data sets. The microRNA-378g (miR-378g)/TFRC (transferrin receptor) axis was selected and identified by qRT-PCR, Western blot analysis, and luciferase activity assays. Cell counting kit-8, colony formation, and transwell assays were applied to detect the phenotypes of laryngeal cancer cells. We observed that LINC00888 expression was notably increased in laryngeal cancer and associated with death, recurrence, and prognosis. Depletion of LINC00888 repressed the proliferative and motile abilities of laryngeal cancer cells in vitro. LINC00888 was predicted to act as a competing endogenous RNA within the microRNA (miRNA)/messenger RNA (mRNA) axis based on analysis from bioinformatics and laryngeal cancer-related TCGA data sets. Interestingly, we discovered that LINC00888 functioned as an miRNA sponge to suppress the effect of miR-378g on laryngeal cancer cells behaviors, as well as positively regulate TFRC expression. Furthermore, the knockdown of TFRC strengthened the inhibitory effect of si-LINC00888 on laryngeal cancer cells' malignant properties. LINC00888 is an oncogenic lncRNA that promotes the growth and mobility of laryngeal cancer cells by controlling laryngeal cancer-related mRNA and tumor-suppressive miRNA. The LINC00888/miR-378g/TFRC pathway might lead to the development of laryngeal cancer cells and, therefore, might be a candidate therapeutic target for laryngeal cancer.
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Affiliation(s)
- Panpan Cui
- Department of ENT, People's Hospital of Rizhao, Shandong, China
| | - Xiuli Dai
- Department of Orthopedics, Central Hospital of Rizhao, Shandong, China
| | - Ruiyue Liu
- Department of Otolaryngology, Heze Municipal Hospital, Shandong, China
| | - Hanhai Cao
- Department of Otolaryngology-Head & Neck Surgery, The People's Hospital of Rizhao, Shandong, China
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3
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Xiao Y, Xia Y, Wang Y, Xue C. Pathogenic roles of long noncoding RNAs in melanoma: Implications in diagnosis and therapies. Genes Dis 2021; 10:113-125. [PMID: 37013035 PMCID: PMC10066279 DOI: 10.1016/j.gendis.2021.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 07/30/2021] [Accepted: 08/20/2021] [Indexed: 12/12/2022] Open
Abstract
Melanoma is one of the most dangerous types of cutaneous neoplasms, which are pigment-producing cells of neuroectodermal origin found all over the body. A great deal of research is focused on the mechanisms of melanoma to promote better diagnostic and treatment options for melanoma in its advanced stages. The progression of melanoma involves alteration in different levels of gene expression. With the successful implementation of next-generation sequencing technology, an increasing number of long noncoding RNAs (lncRNAs) sequences have been discovered, and a significant number of them have phenotypic effects in both in vitro and in vivo studies, implying that they play an important role in the occurrence and progression of human cancers, particularly melanoma. A number of evidence indicated that lncRNAs are important regulators in tumor cell proliferation, invasion, apoptosis, immune escape, energy metabolism, drug resistance, epigenetic regulation. To better understand the role of lncRNAs in melanoma tumorigenesis, we categorize melanoma-associated lncRNAs according to their cellular functions and associations with gene expression and signaling pathways in this review. Based on the mechanisms of lncRNA, we discuss the possibility of lncRNA-target treatments, and the application of liquid biopsies to detect lncRNAs in melanoma diagnosis and prognosis.
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4
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Wang Y, Lou N, Zuo M, Zhu F, He Y, Cheng Z, Wang X. STAT3-induced ZBED3-AS1 promotes the malignant phenotypes of melanoma cells by activating PI3K/AKT signaling pathway. RNA Biol 2021; 18:355-368. [PMID: 34241580 DOI: 10.1080/15476286.2021.1950463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Melanoma is considered as the most frequent primary malignancy occurring in skin. Accumulating studies have suggested that long non-coding RNAs (lncRNAs) play critical parts in multiple cancers. In this study, we explored the molecular mechanism of ZBED3 antisense RNA 1 (ZBED3-AS1) in melanoma. We observed that ZBED3-AS1 expression was remarkably up-regulated in melanoma tissues, and high ZBED3-AS1 level was linked to unsatisfactory survival of melanoma patients. Then, we discovered that ZBED3-AS1 was overexpressed in melanoma cells compared with human epidermal melanocytes. In addition, loss-of-function assays verified that ZBED3-AS1 knockdown restrained cell proliferation, migration, epithelial-mesenchymal transition (EMT), and stemness in melanoma. In addition, signal transducer and activator of transcription 3 (STAT3), which also showed tumour-facilitating functions in melanoma, was confirmed as a transcriptional activator of ZBED3-AS1. Moreover, ZBED3-AS1 enhanced the expression of AT-rich interaction domain 4B (ARID4B) through sequestering miR-381-3p. Importantly, we further confirmed that ZBED3-AS1 promoted the malignant progression of melanoma by regulating miR-381-3p/ARID4B axis to activate the phosphatidylinositol 3-kinase/AKT serine/threonine kinase (PI3K/AKT) signalling pathway. In a word, our research might provide a novel therapeutic target for melanoma.
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Affiliation(s)
- Yang Wang
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
| | - Nan Lou
- Department of Joint Replacement Surgery, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Min Zuo
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
| | - Fuqiang Zhu
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
| | - Yan He
- Department of Pathology, Longgang Center Hospital of Shenzhen, Guangdong, China
| | - Zhiqiang Cheng
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
| | - Xiaomei Wang
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
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5
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Gennart I, Petit A, Wiggers L, Pejaković S, Dauchot N, Laurent S, Coupeau D, Muylkens B. Epigenetic Silencing of MicroRNA-126 Promotes Cell Growth in Marek's Disease. Microorganisms 2021; 9:microorganisms9061339. [PMID: 34205549 PMCID: PMC8235390 DOI: 10.3390/microorganisms9061339] [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: 05/07/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 12/30/2022] Open
Abstract
During latency, herpesvirus infection results in the establishment of a dormant state in which a restricted set of viral genes are expressed. Together with alterations of the viral genome, several host genes undergo epigenetic silencing during latency. These epigenetic dysregulations of cellular genes might be involved in the development of cancer. In this context, Gallid alphaherpesvirus 2 (GaHV-2), causing Marek’s disease (MD) in susceptible chicken, was shown to impair the expression of several cellular microRNAs (miRNAs). We decided to focus on gga-miR-126, a host miRNA considered a tumor suppressor through signaling pathways controlling cell proliferation. Our objectives were to analyze the cause and the impact of miR-126 silencing during GaHV-2 infection. This cellular miRNA was found to be repressed at crucial steps of the viral infection. In order to determine whether miR-126 low expression level was associated with specific epigenetic signatures, DNA methylation patterns were established in the miR-126 gene promoter. Repression was associated with hypermethylation at a CpG island located in the miR-126 host gene epidermal growth factor like-7 (EGFL-7). A strategy was developed to conditionally overexpress miR-126 and control miRNAs in transformed CD4+ T cells propagated from Marek’s disease (MD) lymphoma. This functional assay showed that miR-126 restoration specifically diminishes cell proliferation. We identified CT10 regulator of kinase (CRK), an adaptor protein dysregulated in several human malignancies, as a candidate target gene. Indeed, CRK protein levels were markedly reduced by the miR-126 restoration.
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Affiliation(s)
- Isabelle Gennart
- Integrated Veterinary Research Unit (URVI), Namur Research Institute for Life Sciences (NARILIS), Université de Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium; (I.G.); (L.W.); (S.P.); (D.C.)
| | - Astrid Petit
- Integrated Veterinary Research Unit (URVI), Namur Research Institute for Life Sciences (NARILIS), Université de Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium; (I.G.); (L.W.); (S.P.); (D.C.)
- Correspondence: (A.P.); (B.M.)
| | - Laetitia Wiggers
- Integrated Veterinary Research Unit (URVI), Namur Research Institute for Life Sciences (NARILIS), Université de Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium; (I.G.); (L.W.); (S.P.); (D.C.)
| | - Srđan Pejaković
- Integrated Veterinary Research Unit (URVI), Namur Research Institute for Life Sciences (NARILIS), Université de Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium; (I.G.); (L.W.); (S.P.); (D.C.)
| | - Nicolas Dauchot
- Unit of Research in Plant Cellular and Molecular Biology (URBV), Université de Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium;
| | - Sylvie Laurent
- Département Santé Animale, Institut National de la Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre Val de Loire, 37380 Nouzilly, France;
| | - Damien Coupeau
- Integrated Veterinary Research Unit (URVI), Namur Research Institute for Life Sciences (NARILIS), Université de Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium; (I.G.); (L.W.); (S.P.); (D.C.)
| | - Benoît Muylkens
- Integrated Veterinary Research Unit (URVI), Namur Research Institute for Life Sciences (NARILIS), Université de Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium; (I.G.); (L.W.); (S.P.); (D.C.)
- Correspondence: (A.P.); (B.M.)
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6
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Monroe JD, Basheer F, Gibert Y. Xmrks the Spot: Fish Models for Investigating Epidermal Growth Factor Receptor Signaling in Cancer Research. Cells 2021; 10:1132. [PMID: 34067095 PMCID: PMC8150686 DOI: 10.3390/cells10051132] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/29/2021] [Accepted: 05/03/2021] [Indexed: 12/29/2022] Open
Abstract
Studies conducted in several fish species, e.g., Xiphophorus hellerii (green swordtail) and Xiphophorus maculatus (southern platyfish) crosses, Oryzias latipes (medaka), and Danio rerio (zebrafish), have identified an oncogenic role for the receptor tyrosine kinase, Xmrk, a gene product closely related to the human epidermal growth factor receptor (EGFR), which is associated with a wide variety of pathological conditions, including cancer. Comparative analyses of Xmrk and EGFR signal transduction in melanoma have shown that both utilize STAT5 signaling to regulate apoptosis and cell proliferation, PI3K to modulate apoptosis, FAK to control migration, and the Ras/Raf/MEK/MAPK pathway to regulate cell survival, proliferation, and differentiation. Further, Xmrk and EGFR may also modulate similar chemokine, extracellular matrix, oxidative stress, and microRNA signaling pathways in melanoma. In hepatocellular carcinoma (HCC), Xmrk and EGFR signaling utilize STAT5 to regulate cell proliferation, and Xmrk may signal through PI3K and FasR to modulate apoptosis. At the same time, both activate the Ras/Raf/MEK/MAPK pathway to regulate cell proliferation and E-cadherin signaling. Xmrk models of melanoma have shown that inhibitors of PI3K and MEK have an anti-cancer effect, and in HCC, that the steroidal drug, adrenosterone, can prevent metastasis and recover E-cadherin expression, suggesting that fish Xmrk models can exploit similarities with EGFR signal transduction to identify and study new chemotherapeutic drugs.
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Affiliation(s)
- Jerry D. Monroe
- Department of Cell and Molecular Biology, Cancer Center and Research Institute, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA;
| | - Faiza Basheer
- School of Medicine, Deakin University, Locked Bag 20000, Geelong, VIC 3220, Australia;
| | - Yann Gibert
- Department of Cell and Molecular Biology, Cancer Center and Research Institute, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA;
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7
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Hasan MF, Ganapathy K, Sun J, Khatib A, Andl T, Soulakova JN, Coppola D, Zhang W, Chakrabarti R. LncRNA PAINT is associated with aggressive prostate cancer and dysregulation of cancer hallmark genes. Int J Cancer 2021; 149:10.1002/ijc.33569. [PMID: 33729568 PMCID: PMC9211384 DOI: 10.1002/ijc.33569] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 12/26/2022]
Abstract
Long noncoding RNAs (lncRNAs) play regulatory role in cellular processes and their aberrant expression may drive cancer progression. Here we report the function of a lncRNA PAINT (prostate cancer associated intergenic noncoding transcript) in promoting prostate cancer (PCa) progression. Upregulation of PAINT was noted in advanced stage and metastatic PCa. Inhibition of PAINT decreased cell proliferation, S-phase progression, increased expression of apoptotic markers, and improved sensitivity to docetaxel and Aurora kinase inhibitor VX-680. Inhibition of PAINT decreased cell migration and reduced expression of Slug and Vimentin. Ectopic expression of PAINT suppressed E-cadherin, increased S-phase progression and cell migration. PAINT expression in PCa cells induced larger colony formation, increased tumor growth and higher expression of mesenchymal markers. Transcriptome analysis followed by qRT-PCR validation showed differentially expressed genes involved in epithelial mesenchymal transition (EMT), apoptosis and drug resistance in PAINT-expressing cells. Our study establishes an oncogenic function of PAINT in PCa.
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Affiliation(s)
- Md Faqrul Hasan
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida
| | - Kavya Ganapathy
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida
| | - Jiao Sun
- Department of Computer Science, University of Central Florida, Orlando, Florida
| | - Ayman Khatib
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida
| | - Thomas Andl
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida
| | - Julia N. Soulakova
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida
| | - Domenico Coppola
- Moffitt Cancer Center, Tampa, Florida
- Florida Digestive Health Specialists, Bradenton, Florida
| | - Wei Zhang
- Department of Computer Science, University of Central Florida, Orlando, Florida
| | - Ratna Chakrabarti
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida
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8
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Chen J, Li P, Chen Z, Wang S, Tang S, Chen X, Chen Z, Zhou J. Elevated LINC01550 induces the apoptosis and cell cycle arrest of melanoma. Med Oncol 2021; 38:32. [PMID: 33609219 DOI: 10.1007/s12032-021-01478-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 02/01/2021] [Indexed: 02/05/2023]
Abstract
Melanoma is a high-grade malignant subtype of human skin cancer with the highest mortality rate. Here we perform a bioinformatics analysis concerning human melanoma tissues by the Gene Expression Omnibus (GEO) database and Gene Expression Profiling Interactive Analysis (GEPIA) platform. We found that lncRNA LINC01550 was significantly down-regulated in the melanoma tissues as compared to the normal tissues. The low expression of LINC01550 was tightly associated with shorter overall survival and disease-free survival of patients with melanoma. LINC01550 expression is negatively associated with tumor cell proliferation and invasion abilities in melanoma as evidenced by the single-cell RNA sequencing (scRNA-seq) databases. LINC01550-overexpressing vectors were transferred into melanoma cells (WM35 and WM451). Up-regulation of LINC01550 significantly inhibited proliferation and invasion abilities, as well as induced cell apoptosis and G1 and S phase arrest of the melanoma cells. In conclusion, overexpression of LINC01550 may serve as a potential therapeutic target for melanoma.
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Affiliation(s)
- Jia Chen
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Ping Li
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Zizi Chen
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Shaohua Wang
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Shijie Tang
- Department of Burns and Plastic Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xiang Chen
- Department of Dermatology, XiangYa Hospital, Central South University, Changsha, 410008, China
| | - Zhizhao Chen
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, China.
| | - Jianda Zhou
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, China.
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9
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Safa A, Gholipour M, Dinger ME, Taheri M, Ghafouri-Fard S. The critical roles of lncRNAs in the pathogenesis of melanoma. Exp Mol Pathol 2020; 117:104558. [PMID: 33096077 DOI: 10.1016/j.yexmp.2020.104558] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/12/2020] [Accepted: 10/17/2020] [Indexed: 12/14/2022]
Abstract
Long non-coding RNAs (lncRNAs) embrace a huge fraction of human transcripts and participate in the pathogenesis of human disorders especially malignant conditions. Malignant melanoma, as the most fatal type of cutaneous malignnacies, is associated with dysregulation of several lncRNAs including PVT1, H19, MALAT1, and CCAT1. Moreover, a portion of lncRNAs are exclusively expressed in melanoma cell lines. Expression levels of several lncRNAs are associated with TNM stage, tumor size and progression of melanoma. Thus, these lncRNAs are regarded as biomarkers for this malignancy. Peripheral transcript levels of a number of lncRNAs, such as PVT1, SNHG5 and SPRY4-IT1, could distinguish melanoma patients from unaffected persons with appropriate sensitivity and specificity values. Moreover, expression levels of numerous lncRNAs in tissue biopsies could differentiate malignant samples from benign samples. Based on the results of both cell line and in vivo studies, lncRNAs regulate critical pathways in the carcinogenesis of melanoma, such as the PI3K/Akt and NF-κB signaling pathways, and are involved in the modulation of response to chemotherapeutic agents. Here we review the existing information on the role of lncRNAs in malignant melanoma.
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Affiliation(s)
- Amin Safa
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam
| | - Mahdi Gholipour
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marcel E Dinger
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, 2052 Sydney, NSW, Australia
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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10
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Davra V, Saleh T, Geng K, Kimani S, Mehta D, Kasikara C, Smith B, Colangelo NW, Ciccarelli B, Li H, Azzam EI, Kalodimos CG, Birge RB, Kumar S. Cyclophilin A Inhibitor Debio-025 Targets Crk, Reduces Metastasis, and Induces Tumor Immunogenicity in Breast Cancer. Mol Cancer Res 2020; 18:1189-1201. [PMID: 32321766 DOI: 10.1158/1541-7786.mcr-19-1144] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/18/2020] [Accepted: 04/17/2020] [Indexed: 12/27/2022]
Abstract
The Crk adaptor protein, a critical modifier of multiple signaling pathways, is overexpressed in many cancers where it contributes to tumor progression and metastasis. Recently, we have shown that Crk interacts with the peptidyl prolyl cis-trans isomerase, Cyclophilin A (CypA; PP1A) via a G219P220Y221 (GPY) motif in the carboxyl-terminal linker region of Crk, thereby delaying pY221 phosphorylation and preventing downregulation of Crk signaling. Here, we investigate the physiologic significance of the CypA/Crk interaction and query whether CypA inhibition affects Crk signaling in vitro and in vivo. We show that CypA, when induced under conditions of hypoxia, regulates Crk pY221 phosphorylation and signaling in cancer cell lines. Using nuclear magnetic resonance spectroscopy, we show that CypA binds to the Crk GPY motif via the catalytic PPII domain of CypA, and small-molecule nonimmunosuppressive inhibitors of CypA (Debio-025) disrupt the CypA-CrkII interaction and restores phosphorylation of Crk Y221. In cultured cell lines, Debio-025 suppresses cell migration, and when administered in vivo in an orthotopic model of triple-negative breast cancer, Debio-025 showed antitumor efficacy either alone or in combination with anti-PD-1 mAb, reducing both tumor volume and metastatic lung dispersion. Furthermore, when analyzed by NanoString immune profiling, treatment of Debio-025 with anti-PD-1 mAb increased both T-cell signaling and innate immune signaling in tumor microenvironment. IMPLICATIONS: These data suggest that pharmacologic inhibition of CypA may provide a promising and unanticipated consequence in cancer biology, in part by targeting the CypA/CrkII axis that regulates cell migration, tumor metastasis, and host antitumor immune evasion.
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Affiliation(s)
- Viralkumar Davra
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey
| | - Tamjeed Saleh
- Department of Structural Biology, St Jude Children's Research Hospital, Memphis, Tennessee
| | - Ke Geng
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey
| | - Stanley Kimani
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey
| | - Dhriti Mehta
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey
| | - Canan Kasikara
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey
| | - Brendan Smith
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey
| | - Nicholas W Colangelo
- Department of Radiology, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey
| | - Bryan Ciccarelli
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey
| | - Hong Li
- Center for Advanced Proteomics, Rutgers University, Newark, New Jersey
| | - Edouard I Azzam
- Department of Radiology, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey
| | | | - Raymond B Birge
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey.
| | - Sushil Kumar
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers- New Jersey Medical School, Newark, New Jersey.
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11
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Separated Siamese Twins: Intronic Small Nucleolar RNAs and Matched Host Genes May be Altered in Conjunction or Separately in Multiple Cancer Types. Cells 2020; 9:cells9020387. [PMID: 32046192 PMCID: PMC7072173 DOI: 10.3390/cells9020387] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 12/15/2022] Open
Abstract
Small nucleolar RNAs (snoRNAs) are non-coding RNAs involved in RNA modification and processing. Approximately half of the so far identified snoRNA genes map within the intronic regions of host genes, and their expression, as well as the expression of their host genes, is dependent on transcript splicing and maturation. Growing evidence indicates that mutations and/or deregulations that affect snoRNAs, as well as host genes, play a significant role in oncogenesis. Among the possible factors underlying snoRNA/host gene expression deregulation is copy number alteration (CNA). We analyzed the data available in The Cancer Genome Atlas database, relative to CNA and expression of 295 snoRNA/host gene couples in 10 cancer types, to understand whether the genetic or expression alteration of snoRNAs and their matched host genes would have overlapping trends. Our results show that, counterintuitively, copy number and expression alterations of snoRNAs and matched host genes are not necessarily coupled. In addition, some snoRNA/host genes are mutated and overexpressed recurrently in multiple cancer types. Our findings suggest that the differential contribution to cancer development of both snoRNAs and host genes should always be considered, and that snoRNAs and their host genes may contribute to cancer development in conjunction or independently.
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Wang Z, Zhang J, Yang B, Li R, Jin L, Wang Z, Yu H, Liu C, Mao Y, You Q. Long Intergenic Noncoding RNA 00261 Acts as a Tumor Suppressor in Non-Small Cell Lung Cancer via Regulating miR-105/FHL1 Axis. J Cancer 2019; 10:6414-6421. [PMID: 31772674 PMCID: PMC6856729 DOI: 10.7150/jca.32251] [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: 06/09/2019] [Accepted: 09/26/2019] [Indexed: 02/07/2023] Open
Abstract
Purpose: Long noncoding RNAs (lncRNAs) have recently received more attention for their roles in tumor progression. LINC00261 was studied in this research to identify how it affects the progression of non-small cell lung cancer (NSCLC). Methods: Firstly, the expression of LINC00261 in NSCLC cells and paired samples of NSCLC tissue was detected by RT-qPCR. Then, the associations between LINC00261 expression level and clinicopathological characteristics were evaluated. Furthermore, functional assays of cell proliferation, colony formation and transwell, as well as western blot assay, luciferase assay and RNA immunoprecipitation (RIP) assay were conducted. Afterwards, the effects of LINC00261 expression on NSCLC formation and growing were confirmed by in vivo models. Results: As results, expression of LINC00261 was significantly down-regulated in tumor samples than that in normal samples, which was correlated with the lymphatic metastasis, tumor size, tumor stage as well as patient survival time. Knockdown of LINC00261 inhibited tumor growth and invasion ability in vitro. In addition, miR-105 was identified as a direct target of LINC00261 via mechanism experiments and its expression in tumor tissues negatively correlated to LINC00261 expression. Further experiments found that Four and expression of Half LIM domains 1 (FHL1) was negatively correlated with miR-105 but positively with LINC00261. Moreover, in vivo assays verified the overexpression of LINC00261 could suppress formation of NSCLC and regulate the expression of miR-105/FHL1 axis. Conclusions: These results indicate that LINC00261 could suppress metastasis and proliferation of NSCLC via suppressing miR-105/FHL1 axis, which may offer a new vision for interpreting the mechanism of NSCLC development.
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Affiliation(s)
- Zhiqiang Wang
- Department of Thoracic and Cardiovascular Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Jiru Zhang
- Department of Anesthesiology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Bo Yang
- Department of Radiotherapy, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Runsheng Li
- Department of Respiratory Medicine, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Linfang Jin
- Department of Pathology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Zhenjun Wang
- Department of Thoracic and Cardiovascular Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Haifeng Yu
- Department of Thoracic and Cardiovascular Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Chuanxin Liu
- Department of Thoracic and Cardiovascular Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Yong Mao
- Department of Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Qingjun You
- Department of Thoracic and Cardiovascular Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
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