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Liu J, Han D, Xuan J, Xie J, Wang W, Zhou Q, Chen K. COP9 signalosome complex is a prognostic biomarker and corresponds with immune infiltration in hepatocellular carcinoma. Aging (Albany NY) 2024; 16:5264-5287. [PMID: 38466642 PMCID: PMC11006475 DOI: 10.18632/aging.205646] [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: 07/11/2023] [Accepted: 01/15/2024] [Indexed: 03/13/2024]
Abstract
Hepatocellular carcinoma (HCC) is among the most common deadly tumors but still lacks specific biomarkers for diagnosis, prognosis, and treatment guidance. The COP9 signalosome (COPS) is an essential regulator of the ubiquitin conjugation pathway upregulated in various cancers. We evaluated the contributions of COPS subunits to HCC tumorigenesis and their utility for prognosis. We comprehensively evaluated the tumor expression pattern and tumorigenic functions of COPS subunits using The Cancer Genome Atlas (TCGA), The Human Protein Atlas and immunohistochemistry. Kaplan-Meier, Cox regression, ROC curve, and nomogram analyses were used to assess the predictive values of COPS subunits for clinical outcome. Expression levels of COPS subunits were significantly upregulated in HCC tissues, which predicted shorter overall survival (OS). Further, Cox regression analysis identified COPS5, COPS7B, and COPS9 as independent prognostic biomarkers for OS. High mutation rates were also found in COPS subunits. Functional network analysis indicated that COPS and neighboring genes regulate 'protein neddylation', 'protein deneddylation', and 'protein ubiquitination'. The COPS PPI included strong interactions with p53, CUL1/2/3/4, and JUN. Moreover, the correlations between COPS subunit expression levels and tumor immune cell infiltration rates were examined using TIMER, TISIDB, ssGSEA, and ESTIMATE packages. COPS subunits expression levels were positively correlated with specific tumor immune cell infiltration rates, immunoregulator expression levels, and microsatellite instability in HCC. Finally, knockout of COPS6 and COPS9 in HCC cells reduced while overexpression enhanced proliferation rate and metastasis capacity. Our study revealed that COPS potential biomarker for unfavorable HCC prognosis and indicators of immune infiltration, tumorigenicity, and metastasis.
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Affiliation(s)
- Jiahui Liu
- Department of Clinical Laboratory, Zhongshan City People’s Hospital, The Affiliated Zhongshan Hospital of Sun Yat-Sen University, Zhongshan 528400, Guangdong, China
- Laboratory of Basic Medical Science, General Hospital of Southern Theater Command of PLA, Guangzhou 510000, Guangdong, China
| | - Dexing Han
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510000, Guangdong, China
| | - Junfeng Xuan
- Laboratory of Basic Medical Science, General Hospital of Southern Theater Command of PLA, Guangzhou 510000, Guangdong, China
| | - Jinye Xie
- Department of Clinical Laboratory, Zhongshan City People’s Hospital, The Affiliated Zhongshan Hospital of Sun Yat-Sen University, Zhongshan 528400, Guangdong, China
| | - Weijia Wang
- Department of Clinical Laboratory, Zhongshan City People’s Hospital, The Affiliated Zhongshan Hospital of Sun Yat-Sen University, Zhongshan 528400, Guangdong, China
| | - Quan Zhou
- Laboratory of Basic Medical Science, General Hospital of Southern Theater Command of PLA, Guangzhou 510000, Guangdong, China
- Research Centre of Basic Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510000, Guangdong, China
| | - Kang Chen
- Department of Clinical Laboratory, Zhongshan City People’s Hospital, The Affiliated Zhongshan Hospital of Sun Yat-Sen University, Zhongshan 528400, Guangdong, China
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Islam MS, Gopalan V, Lam AK, Shiddiky MJA. Current advances in detecting genetic and epigenetic biomarkers of colorectal cancer. Biosens Bioelectron 2023; 239:115611. [PMID: 37619478 DOI: 10.1016/j.bios.2023.115611] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 08/07/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
Colorectal carcinoma (CRC) is the third most common cancer in terms of diagnosis and the second in terms of mortality. Recent studies have shown that various proteins, extracellular vesicles (i.e., exosomes), specific genetic variants, gene transcripts, cell-free DNA (cfDNA), circulating tumor DNA (ctDNA), microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and altered epigenetic patterns, can be used to detect, and assess the prognosis of CRC. Over the last decade, a plethora of conventional methodologies (e.g., polymerase chain reaction [PCR], direct sequencing, enzyme-linked immunosorbent assay [ELISA], microarray, in situ hybridization) as well as advanced analytical methodologies (e.g., microfluidics, electrochemical biosensors, surface-enhanced Raman spectroscopy [SERS]) have been developed for analyzing genetic and epigenetic biomarkers using both optical and non-optical tools. Despite these methodologies, no gold standard detection method has yet been implemented that can analyze CRC with high specificity and sensitivity in an inexpensive, simple, and time-efficient manner. Moreover, until now, no study has critically reviewed the advantages and limitations of these methodologies. Here, an overview of the most used genetic and epigenetic biomarkers for CRC and their detection methods are discussed. Furthermore, a summary of the major biological, technical, and clinical challenges and advantages/limitations of existing techniques is also presented.
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Affiliation(s)
- Md Sajedul Islam
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast Campus, Southport, QLD, 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast Campus, Southport, QLD, 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, 4222, Australia.
| | - Alfred K Lam
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast Campus, Southport, QLD, 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, 4222, Australia; Pathology Queensland, Gold Coast University Hospital, Southport, QLD, 4215, Australia
| | - Muhammad J A Shiddiky
- Rural Health Research Institute, Charles Sturt University, Orange, NSW, 2800, Australia.
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Pös O, Styk J, Buglyó G, Zeman M, Lukyova L, Bernatova K, Hrckova Turnova E, Rendek T, Csók Á, Repiska V, Nagy B, Szemes T. Cross-Kingdom Interaction of miRNAs and Gut Microbiota with Non-Invasive Diagnostic and Therapeutic Implications in Colorectal Cancer. Int J Mol Sci 2023; 24:10520. [PMID: 37445698 DOI: 10.3390/ijms241310520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/15/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Colorectal cancer (CRC) has one of the highest incidences among all types of malignant diseases, affecting millions of people worldwide. It shows slow progression, making it preventable. However, this is not the case due to shortcomings in its diagnostic and management procedure and a lack of effective non-invasive biomarkers for screening. Here, we discuss CRC-associated microRNAs (miRNAs) and gut microbial species with potential as CRC diagnostic and therapy biomarkers. We provide rich evidence of cross-kingdom miRNA-mediated interactions between the host and gut microbiome. miRNAs have emerged with the ability to shape the composition and dynamics of gut microbiota. Intestinal microbes can uptake miRNAs, which in turn influence microbial growth and provide the ability to regulate the abundance of various microbial species. In the context of CRC, targeting miRNAs could aid in manipulating the balance of the microbiota. Our findings suggest the need for correlation analysis between the composition of the gut microbiome and the miRNA expression profile.
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Affiliation(s)
- Ondrej Pös
- Comenius University Science Park, 841 04 Bratislava, Slovakia
- Geneton Ltd., 841 04 Bratislava, Slovakia
| | - Jakub Styk
- Comenius University Science Park, 841 04 Bratislava, Slovakia
- Geneton Ltd., 841 04 Bratislava, Slovakia
- Institute of Medical Biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia
| | - Gergely Buglyó
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Michal Zeman
- Comenius University Science Park, 841 04 Bratislava, Slovakia
| | - Lydia Lukyova
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, 842 05 Bratislava, Slovakia
| | - Kamila Bernatova
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, 842 05 Bratislava, Slovakia
| | - Evelina Hrckova Turnova
- Comenius University Science Park, 841 04 Bratislava, Slovakia
- Slovgen Ltd., 841 04 Bratislava, Slovakia
| | - Tomas Rendek
- Institute of Medical Biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia
| | - Ádám Csók
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Vanda Repiska
- Institute of Medical Biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia
- Medirex Group Academy, n.p.o., 949 05 Nitra, Slovakia
| | - Bálint Nagy
- Comenius University Science Park, 841 04 Bratislava, Slovakia
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Tomas Szemes
- Comenius University Science Park, 841 04 Bratislava, Slovakia
- Geneton Ltd., 841 04 Bratislava, Slovakia
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, 842 05 Bratislava, Slovakia
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Overexpression of the miR-17-92 cluster in colorectal adenoma organoids causes a carcinoma-like gene expression signature. Neoplasia 2022; 32:100820. [PMID: 35872559 PMCID: PMC9307940 DOI: 10.1016/j.neo.2022.100820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 11/23/2022]
Abstract
Gain of chromosome arm 13q is one of the most prevalent DNA copy number alterations associated with colorectal adenoma-to-carcinoma progression. The oncogenic miR-17-92 cluster, located at 13q, was found to be overexpressed in colorectal cancer and in adenomas harboring 13q gain. However, to what extent overexpression of this group of microRNAs actually drives progression to cancer remains to be resolved. Therefore, we aimed to clarify the role of miR-17-92 cluster in the progression from colorectal adenoma to carcinoma. The miR-17-92 cluster was overexpressed in human colorectal adenoma organoids without 13q gain and downstream effects on mRNA expression were investigated, along with functional consequences in vitro and in vivo. Comparison of mRNA sequencing results of organoids overexpressing miR-17-92 and cultures transduced with control vector revealed a miR-17-92 expression signature. This signature appeared to be enriched in an independent series of colorectal cancers and adenomas with 13q gain, confirming that miR-17-92 expression is associated with malignant progression. However, tumor-associated characteristics, such as increased proliferation rate, were not observed in miR-17-92 overexpressing adenoma organoids in vitro. In addition, subcutaneous injection of these organoids in immunodeficient mice was insufficient to cause tumor outgrowth. In conclusion, this study showed that miR-17-92 expression contributes to 13q gain-associated adenoma-to-carcinoma progression, however, this is insufficient to cause malignancy.
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Du W, Zhang R, Muhammad B, Pei D. Targeting the COP9 signalosome for cancer therapy. Cancer Biol Med 2022; 19:j.issn.2095-3941.2021.0605. [PMID: 35315259 PMCID: PMC9196064 DOI: 10.20892/j.issn.2095-3941.2021.0605] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/18/2022] [Indexed: 11/24/2022] Open
Abstract
The COP9 signalosome (CSN) is a highly conserved protein complex composed of 8 subunits (CSN1 to CSN8). The individual subunits of the CSN play essential roles in cell proliferation, tumorigenesis, cell cycle regulation, DNA damage repair, angiogenesis, and microenvironmental homeostasis. The CSN complex has an intrinsic metalloprotease that removes the ubiquitin-like activator NEDD8 from cullin-RING ligases (CRLs). Binding of neddylated CRLs to CSN is sensed by CSN4 and communicated to CSN5 with the assistance of CSN6, thus leading to the activation of deneddylase. Therefore, CSN is a crucial regulator at the intersection between neddylation and ubiquitination in cancer progression. Here, we summarize current understanding of the roles of individual CSN subunits in cancer progression. Furthermore, we explain how the CSN affects tumorigenesis through regulating transcription factors and the cell cycle. Finally, we discuss individual CSN subunits as potential therapeutic targets to provide new directions and strategies for cancer therapy.
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Affiliation(s)
- Wenqi Du
- Department of Pathology, Xuzhou Medical University, Xuzhou 221004, China
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou 221004, China
| | - Ruicheng Zhang
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - Bilal Muhammad
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - Dongsheng Pei
- Department of Pathology, Xuzhou Medical University, Xuzhou 221004, China
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Fu C, Yang K, Zou Y, Huo R. Identification of Key microRNAs and Genes in Infantile Hemangiomas. Front Genet 2022; 13:766561. [PMID: 35360837 PMCID: PMC8963821 DOI: 10.3389/fgene.2022.766561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 02/21/2022] [Indexed: 11/29/2022] Open
Abstract
Infantile hemangiomas (IHs) are the most frequent vascular tumors that occur during infancy. Microribonucleic acids (miRNAs) have been demonstrated as critical regulators of gene expression in various diseases. However, the function of miRNAs in IH still remains largely unknown. In the present study, we performed a miRNA microarray analysis of IH and identified 68 differentially expressed miRNAs (DEMs). In addition, miRNA-gene networks and protein-protein interactions were constructed, and the hub miRNAs and genes of IH were screened out. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were used for biological analysis of DEMs and differentially expressed genes (DEGs). The pathway enrichment analysis of DEMs revealed several tumor-related pathways, including proteoglycans in cancer, signaling pathway regulating pluripotency of stem cells and TGF-beta signaling pathway. DEGs were mainly enriched in biological processes, including intracellular signal transduction, cell adhesion, and cell death. KEGG pathway analysis indicated that DEGs were enriched in tumorigenesis- and angiogenesis-related pathways such as proteoglycans in cancer, MAPK signaling pathway and Rap1 signaling pathway. Collectively, this study first established a comprehensive miRNA-gene network in IH, which should provide novel insights into IH pathogenesis and be beneficial to the understanding of neovascularization-related disorders.
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Affiliation(s)
- Cong Fu
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital, Shandong First Medical University, Jinan, China
| | - Kun Yang
- Department of Medicine, Shandong University, Jinan, China
| | - Yuqing Zou
- Department of Medicine, Shandong University, Jinan, China
| | - Ran Huo
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital, Shandong First Medical University, Jinan, China
- Department of Medicine, Shandong University, Jinan, China
- *Correspondence: Ran Huo,
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7
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Novel Diagnostic Biomarkers in Colorectal Cancer. Int J Mol Sci 2022; 23:ijms23020852. [PMID: 35055034 PMCID: PMC8776048 DOI: 10.3390/ijms23020852] [Citation(s) in RCA: 82] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 12/27/2021] [Accepted: 01/03/2022] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is still a leading cause of cancer death worldwide. Less than half of cases are diagnosed when the cancer is locally advanced. CRC is a heterogenous disease associated with a number of genetic or somatic mutations. Diagnostic markers are used for risk stratification and early detection, which might prolong overall survival. Nowadays, the widespread use of semi-invasive endoscopic methods and feacal blood tests characterised by suboptimal accuracy of diagnostic results has led to the detection of cases at later stages. New molecular noninvasive tests based on the detection of CRC alterations seem to be more sensitive and specific then the current methods. Therefore, research aiming at identifying molecular markers, such as DNA, RNA and proteins, would improve survival rates and contribute to the development of personalized medicine. The identification of “ideal” diagnostic biomarkers, having high sensitivity and specificity, being safe, cheap and easy to measure, remains a challenge. The purpose of this review is to discuss recent advances in novel diagnostic biomarkers for tumor tissue, blood and stool samples in CRC patients.
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8
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Glutamine-Derived Aspartate Biosynthesis in Cancer Cells: Role of Mitochondrial Transporters and New Therapeutic Perspectives. Cancers (Basel) 2022; 14:cancers14010245. [PMID: 35008407 PMCID: PMC8750728 DOI: 10.3390/cancers14010245] [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: 10/31/2021] [Revised: 12/30/2021] [Accepted: 01/01/2022] [Indexed: 12/20/2022] Open
Abstract
Simple Summary In recent years, aspartate has been increasingly acknowledged as a critical player in the metabolism of cancer cells which use this metabolite for nucleotide and protein synthesis and for redox homeostasis. Most intracellular aspartate derives from the mitochondrial catabolism of glutamine. To date at least four mitochondrial transporters have been involved in this metabolic pathway. Their involvement appears to be cancer type-specific and dependent on glutamine availability. Targeting these mitochondrial transporters may represent a new attractive strategy to fight cancer. The aim of this review is to dissect the role of each of these transporters in relation to the type of cancer and the availability of nutrients in the tumoral microenvironment. Abstract Aspartate has a central role in cancer cell metabolism. Aspartate cytosolic availability is crucial for protein and nucleotide biosynthesis as well as for redox homeostasis. Since tumor cells display poor aspartate uptake from the external environment, most of the cellular pool of aspartate derives from mitochondrial catabolism of glutamine. At least four transporters are involved in this metabolic pathway: the glutamine (SLC1A5_var), the aspartate/glutamate (AGC), the aspartate/phosphate (uncoupling protein 2, UCP2), and the glutamate (GC) carriers, the last three belonging to the mitochondrial carrier family (MCF). The loss of one of these transporters causes a paucity of cytosolic aspartate and an arrest of cell proliferation in many different cancer types. The aim of this review is to clarify why different cancers have varying dependencies on metabolite transporters to support cytosolic glutamine-derived aspartate availability. Dissecting the precise metabolic routes that glutamine undergoes in specific tumor types is of upmost importance as it promises to unveil the best metabolic target for therapeutic intervention.
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Song J, Yu S, Zhong D, Yang W, Jia Z, Yuan G, Li P, Zhang R, Li Y, Zhong G, Chen Z. The circular RNA hsa_circ_000780 as a potential molecular diagnostic target for gastric cancer. BMC Med Genomics 2021; 14:282. [PMID: 34838011 PMCID: PMC8627072 DOI: 10.1186/s12920-021-01096-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 10/08/2021] [Indexed: 01/01/2023] Open
Abstract
Background The present study aimed to identify a specific circular RNA (circRNA) for early diagnosis of gastric cancer (GC). Methods Totally 82 patients with GC, 30 with chronic nonatrophic gastritis and 30 with chronic atrophic gastritis were included in this study. Four of the 82 GC patients were selected for screening. Total RNA from malignant and adjacent tissue samples was extracted, and circRNAs in four patients were screened. According to the screening results, the eight most upregulated and downregulated circRNAs with a statistically significant association with GC were identified by real-time fluorescent quantitative polymerase chain reaction (PCR). Then, the most regulated circRNA was selected for further sensitivity and specificity assessments. CircRNA expression was examined by quantitative reverse transcriptase PCR in 78 GC (21 and 57 early and advanced GC, respectively) and adjacent tissue samples, as well as in gastric fluid samples from 30 patients with chronic nonatrophic gastritis, 30 with chronic atrophic gastritis, and 78 GC. Results A total of 445 circRNAs, including 69 upregulated and 376 downregulated circRNAs, showed significantly altered expression in GC tissue samples. Hsa_circ_000780 was significantly downregulated in 80.77% of GC tissue samples, with levels in GC tissue samples correlating with tumor size, tumor stage, T stage, venous invasion, carcinoembryonic antigen amounts, and carbohydrate antigen 19–9 levels. Strikingly, this circRNA was found in the gastric fluid of patients with early and advanced GC. Conclusions The present study uncovered a new circRNA expression profile in human GC, with hsa_circ_000780 significantly downregulated in GC tissue and gastric fluid specimens. These findings indicate that hsa_circ_000780 should be considered a novel biomarker for early GC screening.
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Affiliation(s)
- Jian Song
- Department of Gastroenterology, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China.
| | - Shuyong Yu
- Department of Gastrointestinal Surgery, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China
| | - Dunjing Zhong
- Department of Gastroenterology, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China
| | - Weizhong Yang
- Department of Digestive Endoscopy, The Affiliated Second Hospital of Hainan Medical University, Haikou, 570100, China
| | - Zhen Jia
- Department of Anesthesiology, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China
| | - Guihong Yuan
- Department of Gastroenterology, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China
| | - Ping Li
- Department of Gastroenterology, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China
| | - Ronglin Zhang
- Department of Gastroenterology, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China
| | - Yini Li
- Department of Gastroenterology, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China
| | - Guobing Zhong
- Department of Clinical Laboratory, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China
| | - Zhaowei Chen
- Department of Gastroenterology, The Affiliated Cancer Hospital of Hainan Medical University, Haikou, 570123, China
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Liu L, Yao H, Zhou X, Chen J, Chen G, Shi X, Wu G, Zhou G, He S. MiR-15a-3p regulates ferroptosis via targeting glutathione peroxidase GPX4 in colorectal cancer. Mol Carcinog 2021; 61:301-310. [PMID: 34727409 DOI: 10.1002/mc.23367] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/15/2021] [Accepted: 10/22/2021] [Indexed: 01/14/2023]
Abstract
Colorectal cancer (CRC) is the second most common cancer-related deaths throughout the world. Ferroptosis is a recently regulated form of cell death, lately gains attention. MicroRNA-15a-3p (miR-15a-3p) plays a regulatory role in various kinds of cancers. However, the role of miR-15a-3p in cellular ferroptosis is still unclear. Here, we aimed to clarify whether miR-15a-3p could regulate the ferroptosis of CRC. Here we identified miR-15a-3p positively regulates ferroptosis via directly targeting glutathione peroxidase glutathione peroxidase 4 (GPX4) in CRC. Overexpression of miR-15a-3p repressed GPX4 through binding to the 3'-untranslated region of GPX4, resulting in increased reactive oxygen species level, intracellular Fe2+ level, and malondialdehyde accumulation in vitro and in vivo. Correspondingly, suppression of miR-15a-3p reduced the sensitivity of CRC cells to erastin and GPX4. Taken together, these data demonstrate that miR-15a-3p regulates ferroptosis through targeting GPX4 in CRC cells, illustrating the novel role of microRNA in ferroptosis.
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Affiliation(s)
- Liurong Liu
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Department of General Surgery, Yancheng Third People's Hospital, Yancheng, Jiangsu, China
| | - Huihui Yao
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xin Zhou
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Junjie Chen
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Guoliang Chen
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xinyu Shi
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Guanting Wu
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Guoqiang Zhou
- Department of Gastrointestinal Surgery, Changshu No. 2 Hospital, Suzhou, Jiangsu, China
| | - Songbing He
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Huang X, Zhu X, Yu Y, Zhu W, Jin L, Zhang X, Li S, Zou P, Xie C, Cui R. Dissecting miRNA signature in colorectal cancer progression and metastasis. Cancer Lett 2020; 501:66-82. [PMID: 33385486 DOI: 10.1016/j.canlet.2020.12.025] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) is the third most common cancer and leading cause of cancer related deaths worldwide. Despite recent advancements in surgical and molecular targeted therapies that improved the therapeutic efficacy in CRC, the 5 years survival rate of CRC patients still remains frustratingly poor. Accumulated evidences indicate that microRNAs (miRNAs) play a crucial role in the progression and metastasis of CRC. Dysregulated miRNAs are closely associated with cancerous phenotypes (e.g. enhanced proliferative and invasive ability, evasion of apoptosis, cell cycle aberration, and promotion of angiogenesis) by regulating their target genes. In this review, we provide an updated overview of tumor suppressive and oncogenic miRNAs, circulatory miRNAs, and the possible causes of dysregulated miRNAs in CRC. In addition, we discuss the important functions of miRNAs in drug resistance of CRC.
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Affiliation(s)
- Xiangjie Huang
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Xinping Zhu
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yun Yu
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Wangyu Zhu
- Affiliated Zhoushan Hospital, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Libo Jin
- Institute of Life Sciences, Wenzhou University, Wenzhou, Zhejiang, 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, Zhejiang, 325035, China
| | - Xiaodong Zhang
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Shaotang Li
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Peng Zou
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Institute of Life Sciences, Wenzhou University, Wenzhou, Zhejiang, 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, Zhejiang, 325035, China
| | - Congying Xie
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Ri Cui
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Institute of Life Sciences, Wenzhou University, Wenzhou, Zhejiang, 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, Zhejiang, 325035, China.
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Aguilar E, Esteves P, Sancerni T, Lenoir V, Aparicio T, Bouillaud F, Dentin R, Prip-Buus C, Ricquier D, Pecqueur C, Guilmeau S, Alves-Guerra MC. UCP2 Deficiency Increases Colon Tumorigenesis by Promoting Lipid Synthesis and Depleting NADPH for Antioxidant Defenses. Cell Rep 2020; 28:2306-2316.e5. [PMID: 31461648 PMCID: PMC6718829 DOI: 10.1016/j.celrep.2019.07.097] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 07/01/2019] [Accepted: 07/25/2019] [Indexed: 12/16/2022] Open
Abstract
Colorectal cancer (CRC) is associated with metabolic and redox perturbation. The mitochondrial transporter uncoupling protein 2 (UCP2) controls cell proliferation in vitro through the modulation of cellular metabolism, but the underlying mechanism in tumors in vivo remains unexplored. Using murine intestinal cancer models and CRC patient samples, we find higher UCP2 protein levels in tumors compared to their non-tumoral counterparts. We reveal the tumor-suppressive role of UCP2 as its deletion enhances colon and small intestinal tumorigenesis in AOM/DSS-treated and ApcMin/+ mice, respectively, and correlates with poor survival in the latter model. Mechanistically, UCP2 loss increases levels of oxidized glutathione and proteins in tumors. UCP2 deficiency alters glycolytic pathways while promoting phospholipid synthesis, thereby limiting the availability of NADPH for buffering oxidative stress. We show that UCP2 loss renders colon cells more prone to malignant transformation through metabolic reprogramming and perturbation of redox homeostasis and could favor worse outcomes in CRC. UCP2 protein expression, but not mRNA, is increased in CRC in both mice and humans UCP2 loss promotes AOM/DSS-induced CAC and ApcMin-dependent intestinal cancer UCP2 loss-induced oxidative stress contributes to increased colon tumorigenesis UCP2 deficiency drives an imbalance between lipid metabolism and NADPH homeostasis
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Affiliation(s)
- Esther Aguilar
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Pauline Esteves
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Tiphaine Sancerni
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France; Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris Cedex 13, France
| | - Véronique Lenoir
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Thomas Aparicio
- Hôpital Avicenne, HUPSSD, APHP, Université Paris 13, 93000 Bobigny, France
| | - Frédéric Bouillaud
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Renaud Dentin
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Carina Prip-Buus
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Daniel Ricquier
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Claire Pecqueur
- CRCINA - INSERM U1232, Université de Nantes, 44007 Nantes, France
| | - Sandra Guilmeau
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Marie-Clotilde Alves-Guerra
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France.
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Siskova A, Cervena K, Kral J, Hucl T, Vodicka P, Vymetalkova V. Colorectal Adenomas-Genetics and Searching for New Molecular Screening Biomarkers. Int J Mol Sci 2020; 21:ijms21093260. [PMID: 32380676 PMCID: PMC7247353 DOI: 10.3390/ijms21093260] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/01/2020] [Accepted: 05/02/2020] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is a malignant disease with an incidence of over 1.8 million new cases per year worldwide. CRC outcome is closely related to the respective stage of CRC and is more favorable at less advanced stages. Detection of early colorectal adenomas is the key to survival. In spite of implemented screening programs showing efficiency in the detection of early precancerous lesions and CRC in asymptomatic patients, a significant number of patients are still diagnosed in advanced stages. Research on CRC accomplished during the last decade has improved our understanding of the etiology and development of colorectal adenomas and revealed weaknesses in the general approach to their detection and elimination. Recent studies seek to find a reliable non-invasive biomarker detectable even in the blood. New candidate biomarkers could be selected on the basis of so-called liquid biopsy, such as long non-coding RNA, microRNA, circulating cell-free DNA, circulating tumor cells, and inflammatory factors released from the adenoma into circulation. In this work, we focused on both genetic and epigenetic changes associated with the development of colorectal adenomas into colorectal carcinoma and we also discuss new possible biomarkers that are detectable even in adenomas prior to cancer development.
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Affiliation(s)
- Anna Siskova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 12800 Prague, Czech Republic
- Correspondence: (A.S.); (P.V.); Tel.: +420-241062251 (A.S.); +420-241062694 (P.V.)
| | - Klara Cervena
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 12800 Prague, Czech Republic
| | - Jan Kral
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute for Clinical and Experimental Medicine, Videnska 1958/9, 14021 Prague, Czech Republic;
| | - Tomas Hucl
- Institute for Clinical and Experimental Medicine, Videnska 1958/9, 14021 Prague, Czech Republic;
| | - Pavel Vodicka
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 12800 Prague, Czech Republic
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 76, 32300 Pilsen, Czech Republic
- Correspondence: (A.S.); (P.V.); Tel.: +420-241062251 (A.S.); +420-241062694 (P.V.)
| | - Veronika Vymetalkova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 12800 Prague, Czech Republic
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 76, 32300 Pilsen, Czech Republic
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Long non-coding RNA KRT19P3 suppresses proliferation and metastasis through COPS7A-mediated NF-κB pathway in gastric cancer. Oncogene 2019; 38:7073-7088. [PMID: 31409899 DOI: 10.1038/s41388-019-0934-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 07/12/2019] [Accepted: 07/29/2019] [Indexed: 12/27/2022]
Abstract
Long non-coding RNAs (lncRNAs) have emerged as critical regulators in gastric cancer (GC). LncRNA expression microarray data indicate that KRT19P3 (Keratin 19 Pseudogene 3) is downregulated in GC samples. However, the expression pattern and molecular mechanism of KRT19P3 in GC have not been characterized. The present study confirmed the downregulation of KRT19P3 in GC tissues and cells. Decreased expression of KRT19P3 was correlated with larger tumor size, advanced TNM stage, Lauren's classification, positive lymph node metastasis, and poor prognosis. Enforced expression of KRT19P3 significantly inhibited cell proliferation, migration, and invasion in vitro, as well as tumorigenesis and metastasis in vivo. Conversely, KRT19P3 knockdown had opposite effects. Mechanistically, RNA pull-down and RNA immunoprecipitation assay revealed that KRT19P3 could directly bind COPS7A. KRT19P3 enhanced COPS7A protein stability in GC cells, and KRT19P3 suppressed GC cell proliferation and metastasis partly through regulation of COPS7A expression. COPS7A could promote deubiquitinylation of IκBα, which was executed by CSN-associated deubiquitinylase USP15, and then KRT19P3 inactivated nuclear factor kappa-B (NF-κB) signaling pathway in a COPS7A-dependent manner. For the first time, we revealed that KRT19P3 could suppress tumor growth and metastasis through COPS7A-mediated NF-κB pathway, which may serve as potential targets for treatment of GC in the future.
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Moody L, Dvoretskiy S, An R, Mantha S, Pan YX. The Efficacy of miR-20a as a Diagnostic and Prognostic Biomarker for Colorectal Cancer: A Systematic Review and Meta-Analysis. Cancers (Basel) 2019; 11:cancers11081111. [PMID: 31382594 PMCID: PMC6721456 DOI: 10.3390/cancers11081111] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 07/28/2019] [Accepted: 07/30/2019] [Indexed: 02/06/2023] Open
Abstract
Background: MicroRNAs have altered expression levels in various diseases and may play an important role in the diagnosis and prognosis of colorectal cancer (CRC). Methods: We systemically reviewed and quantitatively synthesized the scientific evidence pertaining to microRNA-20a (miR-20a) as a CRC biomarker. A keyword and reference search in PubMed yielded 32 studies, in which miR-20a was measured in feces, serum, or tumor tissue. Data were extracted from a total of 5014 cancer cases and 2863 controls. Results: Twenty out of 21 relevant studies found that miR-20a was upregulated in CRC patients compared to controls. Meta-analysis revealed a pooled miR-20a fold change of 2.45 (95% CI: 2.24-2.66) in CRC patients versus controls. To estimate sensitivity and specificity of miR-20a as a diagnostic biomarker of CRC, a pooled area under the receiver operating characteristic curve (AUROC) was calculated (0.70, 95% CI: 0.63-0.78). The prognostic capacity of miR-20a was assessed using hazard ratios (HRs) for the overall survival (OS). The meta-analysis estimated the pooled HR for OS to be 2.02 (95% CI: 0.90-3.14) in CRC patients with high miR-20a expression. Conclusions: miR-20a may be a valid biomarker for CRC detection but may not be a strong predictor of poor prognosis in CRC.
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Affiliation(s)
- Laura Moody
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Svyatoslav Dvoretskiy
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Ruopeng An
- Department of Kinesiology and Community Health, Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Suparna Mantha
- Carle Physician Group, Carle Cancer Center, Carle Foundation Hospital, Urbana, IL 61802, USA
| | - Yuan-Xiang Pan
- Department of Food Science and Human Nutrition, Division of Nutritional Sciences, and Illinois Informatics Institute, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
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16
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Cui Y, Yang Y, Ren L, Yang J, Wang B, Xing T, Chen H, Chen M. miR-15a-3p Suppresses Prostate Cancer Cell Proliferation and Invasion by Targeting SLC39A7 Via Downregulating Wnt/β-Catenin Signaling Pathway. Cancer Biother Radiopharm 2019; 34:472-479. [PMID: 31135177 DOI: 10.1089/cbr.2018.2722] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Background: MiR-15a-3p has been reported as a tumor suppressor in several kinds of cancer, including cervical cancer and gastric cancer. However, the precise molecular mechanisms underlying its role in prostate cancer (PCa) remain largely unknown. Methods: The expression of miR-15a-3p was determined in PCa tissues and cell lines using quantitative real time PCR. The biological function of miR-15a-3p in PCa cells was investigated using a MTT assay, Edu staining and transwell assay. Moreover, luciferase reporter assay, quantitative real time PCR and western blotting were used to identify and verify the direct downstream target of miR-15a-3p. Results: We found that the expression of miR-15a-3p was down-regulated in both PCa tissues and cell lines. The in vitro results showed that miR-15a-3p overexpression suppressed cell proliferation, invasion, and epithelial-mesenchymal transition (EMT) via down-regulating Wnt/β-catenin signaling in PCa cells. Moreover, SLC39A7 was a direct downstream target of miR-15a-3p. Furthermore, SLC39A7 overexpression attenuated the effects of miR-15a-3p on cell proliferation, invasion, Wnt/β-catenin pathway and EMT molecules. Conclusions: In summary, our study indicated that miR-15a-3p inhibited the proliferation, invasion, and EMT process of PCa cells via targeting SLC39A7 and suppressing Wnt/β-catenin signaling pathway, which may represent a new therapeutic objective for PCa treatment.
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Affiliation(s)
- Yu Cui
- Department of Urology, Shanxi Cancer Hospital, Taiyuan, China
| | - Yi Yang
- Department of Urology, Beijing Fengtai Hospital of Integrated Traditional and Western Medicine, Beijing, China
| | - Liang Ren
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Jun Yang
- Department of Urology, The Second People's Hospital of Shanxi Province, Shanxi, China
| | - Bin Wang
- Department of Urology, Shanxi Cancer Hospital, Taiyuan, China
| | - Tianjun Xing
- Department of Urology, Shanxi Cancer Hospital, Taiyuan, China
| | - Huiqing Chen
- Department of Urology, Shanxi Cancer Hospital, Taiyuan, China
| | - Mingxiao Chen
- Cancer Radiotherapy Center, Shanxi Cancer Hospital, Taiyuan, China
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17
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Zhu B, Zhang P, Liu M, Jiang C, Liu H, Fu J. Prognostic Significance of CSN2, CD8, and MMR Status-Associated Nomograms in Patients with Colorectal Cancer. Transl Oncol 2018; 11:1202-1212. [PMID: 30075461 PMCID: PMC6080638 DOI: 10.1016/j.tranon.2018.07.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 07/04/2018] [Accepted: 07/06/2018] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND COP9 signalosome subunit 2 (CSN2) is believed to be involved in human cancer, but its prognostic significance in colorectal cancer (CRC) has not been elucidated. PATIENTS AND METHODS We retrospectively analyzed the expression of CSN2 andCD8+ tumor-infiltrating lymphocytes (TILs), and mismatch repair (MMR) status in 267 paraffin-embedded specimens using immunohistochemistry in a training cohort. A number of risk factors were used to form nomograms to evaluate survival, and Harrell's concordance index (C-index) was used to evaluate the predictive accuracy. Further validation was performed in an independent cohort of 238cases. RESULTS Low CSN2 expression and a low number of CD8 + TILs were significantly associated with diminished disease-free survival (DFS) and overall survival (OS) in CRC patients, and patients with MMR-deficient CRC had enhanced DFS and OS. Moreover, the multivariate Cox analysis identified CSN2, CD8 + TILs, and MMR status as independent prognostic factors for DFS and OS. Using these three markers and four clinicopathological risk variables, two nomograms were constructed and validated for predicting DFS and OS (C-index: training cohort, 0.836 (95% CI:0.804-0.868) and 0.841 (0.808-0.874), respectively; validation cohort, 0.801 (0.760-843) and 0.843 (0.806-0.881), respectively). CONCLUSIONS CSN2, CD8+ TILs, and MMR status were independent prognostic factors. The nomograms could be used to generate individualized predictions for DFS and OS.
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Affiliation(s)
- Bing Zhu
- Department of Gastrointestinal Surgery, The first Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China.
| | - Pei Zhang
- Faculty of Pharmacy, Bengbu Medical College, Bengbu, 233000, China
| | - Mulin Liu
- Department of Gastrointestinal Surgery, The first Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
| | - Congqiao Jiang
- Department of Gastrointestinal Surgery, The first Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
| | - Hao Liu
- Faculty of Pharmacy, Bengbu Medical College, Bengbu, 233000, China
| | - Jun Fu
- Department of Gastrointestinal Surgery, The first Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China.
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18
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Strubberg AM, Madison BB. MicroRNAs in the etiology of colorectal cancer: pathways and clinical implications. Dis Model Mech 2017; 10:197-214. [PMID: 28250048 PMCID: PMC5374322 DOI: 10.1242/dmm.027441] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) are small single-stranded RNAs that repress mRNA translation
and trigger mRNA degradation. Of the ∼1900 miRNA-encoding genes present
in the human genome, ∼250 miRNAs are reported to have changes in
abundance or altered functions in colorectal cancer. Thousands of studies have
documented aberrant miRNA levels in colorectal cancer, with some miRNAs reported
to actively regulate tumorigenesis. A recurrent phenomenon with miRNAs is their
frequent participation in feedback loops, which probably serve to reinforce or
magnify biological outcomes to manifest a particular cellular phenotype. Here,
we review the roles of oncogenic miRNAs (oncomiRs), tumor suppressive miRNAs
(anti-oncomiRs) and miRNA regulators in colorectal cancer. Given their stability
in patient-derived samples and ease of detection with standard and novel
techniques, we also discuss the potential use of miRNAs as biomarkers in the
diagnosis of colorectal cancer and as prognostic indicators of this disease.
MiRNAs also represent attractive candidates for targeted therapies because their
function can be manipulated through the use of synthetic antagonists and miRNA
mimics. Summary: This Review provides an overview of some important
microRNAs and their roles in colorectal cancer.
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Affiliation(s)
- Ashlee M Strubberg
- Division of Gastroenterology, Washington University School of Medicine, Washington University, Saint Louis, MO 63110, USA
| | - Blair B Madison
- Division of Gastroenterology, Washington University School of Medicine, Washington University, Saint Louis, MO 63110, USA
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Yang Y, Ding S, Xu G, Chen F, Ding F. MicroRNA-15a inhibition protects against hypoxia/reoxygenation-induced apoptosis of cardiomyocytes by targeting mothers against decapentaplegic homolog 7. Mol Med Rep 2017; 15:3699-3705. [PMID: 28440490 PMCID: PMC5436199 DOI: 10.3892/mmr.2017.6466] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 02/20/2017] [Indexed: 12/31/2022] Open
Abstract
Myocardial ischemia/reperfusion (I/R) injury is a major pathological process in coronary heart disease and cardiac surgery, and is associated with aberrant microRNA (miR) expression. Previous studies have demonstrated that inhibition of miR-15a expression may ameliorate I/R-induced myocardial injury. In the present study, the potential role and underlying mechanism of miR-15a in hypoxia/reoxygenation-induced apoptosis of cardiomyocytes was investigated. Myocardial I/R was simulated in cultured H9c2 cells by 24 h hypoxia followed by 24 h reoxygenation. Using recombinant lentivirus vectors, the inhibition of miR-15a was indicated to significantly reduce cardiomyocyte apoptosis and release of lactate dehydrogenase and malondialdehyde. Conversely, upregulated miR-15a expression was pro-apoptotic. Mothers against decapentaplegic homolog 7 (SMAD7) was identified by bioinformatics analysis as a potential target of miR-15a. Luciferase reporter assays and western blotting for endogenous SMAD7 protein indicated that miR-15a inhibited SMAD7 expression via its 3′-untranslated region. Nuclear levels of nuclear factor-κB (NF-κB) p65 were increased by miR-15a expression and decreased by miR-15a inhibition, which is consistent with the possibility that the inhibition of SMAD7 by miR-15a results in NF-κB activation. These findings suggested that the therapeutic effects of miR-15a inhibition on I/R injury may potentially be explained by its ability to release SMAD-7-dependent NF-κB inhibition. This may provide evidence for miR-15a as a potential therapeutic target for the treatment of cardiac I/R injury.
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Affiliation(s)
- Yang Yang
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Shiao Ding
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Gaojun Xu
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Fei Chen
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Fangbao Ding
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
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Jin L, Li Y, He T, Hu J, Liu J, Chen M, Zhang Z, Gui Y, Mao X, Yang S, Lai Y. miR‑15a‑5p acts as an oncogene in renal cell carcinoma. Mol Med Rep 2017; 15:1379-1386. [PMID: 28098906 DOI: 10.3892/mmr.2017.6121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 10/07/2016] [Indexed: 11/06/2022] Open
Abstract
miRNAs have been reported to be involved in multiple cellular processes and the tumorigenesis of various cancers. miR‑15a‑5p (also termed miR‑15a) has previously been determined to be upregulated in renal cell carcinoma (RCC) by microarray profile. However, the expression and function of miR‑15a‑5p in RCC remain to be validated. In the present study, reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was performed to detect the expression levels of miR‑15a‑5p in RCC tissues and cells. The expression level of miR‑15a‑5p was upregulated or downregulated by transfecting synthesized miR‑15a‑5p mimics or inhibitors. The MTT assay, CCK‑8 assay, Transwell assay, wound healing assay, Hoechest 33342 staining and flow cytometry were conducted to investigate the role of miR‑15a‑5p in RCC. The results of the RT‑qPCR demonstrated that miR‑15a‑5p was upregulated in RCC tissues and ACHN, 786‑O and 769P RCC cells compared with paired normal tissues and HEK‑293T cells. miR‑15a‑5p was observed to be associated with RCC cell proliferation, migration, invasion and apoptosis. The results demonstrated that miR‑15a‑5p may be important as a tumor promoter in RCC. To the best of our knowledge, the present study is the first to describe miR‑15a‑5p as a tumor promoter in RCC. Further research will be performed to investigate the underlying signaling pathway of miR‑15a‑5p and the potential role of miR‑15a‑5p as a biomarker for early detection, prognosis prediction and a therapeutic target of RCC.
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Affiliation(s)
- Lu Jin
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yifan Li
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Tao He
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Jia Hu
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Jiaju Liu
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Mingwei Chen
- Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Zeng Zhang
- Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Yaoting Gui
- The Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU‑HKUST Medical Center, Shenzhen, Guangdong 518036, P.R. China
| | - Xiangming Mao
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Shangqi Yang
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yongqing Lai
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
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21
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miR-15a and miR-24-1 as putative prognostic microRNA signatures for pediatric pilocytic astrocytomas and ependymomas. Tumour Biol 2016; 37:9887-97. [PMID: 26813564 DOI: 10.1007/s13277-016-4903-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 01/20/2016] [Indexed: 12/20/2022] Open
Abstract
In the current setting, we attempted to verify and validate miRNA candidates relevant to pediatric primary brain tumor progression and outcome, in order to provide data regarding the identification of novel prognostic biomarkers. Overall, 26 resected brain tumors were studied from children diagnosed with pilocytic astrocytomas (PAs) (n = 19) and ependymomas (EPs) (n = 7). As controls, deceased children who underwent autopsy and were not present with any brain malignancy were used. The experimental approach included microarrays covering 1211 miRNAs. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to validate the expression profiles of miR-15a and miR-24-1. The multiparameter analyses were performed with MATLAB. Matching differentially expressed miRNAs were detected in both PAs and EPs, following distinct comparisons with the control cohort; however, in several cases, they exhibited tissue-specific expression profiles. On correlations between miRNA expression and EP progression or outcome, miR-15a and miR-24-1 were found upregulated in EP relapsed and EP deceased cases when compared to EP clinical remission cases and EP survivors, respectively. Taken together, following several distinct associations between miRNA expression and diverse clinical parameters, the current study repeatedly highlighted miR-15a and miR-24-1 as candidate oncogenic molecules associated with inferior prognosis in children diagnosed with ependymoma.
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