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Orășeanu A, Brisc MC, Maghiar OA, Popa H, Brisc CM, Șolea SF, Maghiar TA, Brisc C. Landscape of Innovative Methods for Early Diagnosis of Gastric Cancer: A Systematic Review. Diagnostics (Basel) 2023; 13:3608. [PMID: 38132192 PMCID: PMC10742893 DOI: 10.3390/diagnostics13243608] [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: 10/31/2023] [Revised: 11/28/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023] Open
Abstract
From a global perspective, gastric cancer (GC) persists as a significant healthcare issue. In the Western world, the majority of cases are discovered at late stages, when the treatment is generally unsuccessful. There are no organized screening programs outside of Asia (Japan and Republic of Korea). Traditional diagnosis techniques (such as upper endoscopy), conventional tumor markers (CEA, CA19-9, and CA72-4), radiographic imaging, and CT scanning all have drawbacks. The gold standard for the earliest detection of cancer and related premalignant lesions is still endoscopy with a proper biopsy follow-up. Since there are currently no clinically approved biomarkers for the early diagnosis of GC, the identification of non-invasive biomarkers is expected to help improve the prognosis and survival rate of these patients. The search for new screening biomarkers is currently underway. These include genetic biomarkers, such as circulating tumor cells, microRNAs, and exosomes, as well as metabolic biomarkers obtained from biofluids. Meanwhile, cutting-edge high-resolution endoscopic technologies are demonstrating promising outcomes in the visual diagnosis of mucosal lesions with the aid of linked color imaging and machine learning models. Following the PRISMA guidelines, this study examined the articles in databases such as PubMed, resulting in 167 included articles. This review discusses the currently available and emerging methods for diagnosing GC early on, as well as new developments in the endoscopic detection of early lesions of the stomach.
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Affiliation(s)
- Alexandra Orășeanu
- Clinic of Gastroenterology, Bihor Clinical County Emergency Hospital, 410169 Oradea, Romania; (A.O.); (S.F.Ș.)
- Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (O.A.M.); (T.A.M.); (C.B.)
| | | | - Octavian Adrian Maghiar
- Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (O.A.M.); (T.A.M.); (C.B.)
- Faculty of Medicine and Pharmacy, University of Oradea, 410068 Oradea, Romania;
| | - Horia Popa
- Clinical Emergency Hospital “Prof. Dr. Agrippa Ionescu”, 011356 Bucharest, Romania;
| | - Ciprian Mihai Brisc
- Faculty of Medicine and Pharmacy, University of Oradea, 410068 Oradea, Romania;
| | - Sabina Florina Șolea
- Clinic of Gastroenterology, Bihor Clinical County Emergency Hospital, 410169 Oradea, Romania; (A.O.); (S.F.Ș.)
- Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (O.A.M.); (T.A.M.); (C.B.)
| | - Teodor Andrei Maghiar
- Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (O.A.M.); (T.A.M.); (C.B.)
- Faculty of Medicine and Pharmacy, University of Oradea, 410068 Oradea, Romania;
| | - Ciprian Brisc
- Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (O.A.M.); (T.A.M.); (C.B.)
- Faculty of Medicine and Pharmacy, University of Oradea, 410068 Oradea, Romania;
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Felípez N, Montori S, Mendizuri N, Llach J, Delgado PG, Moreira L, Santamaría E, Fernández-Irigoyen J, Albéniz E. The Human Gastric Juice: A Promising Source for Gastric Cancer Biomarkers. Int J Mol Sci 2023; 24:ijms24119131. [PMID: 37298081 DOI: 10.3390/ijms24119131] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/18/2023] [Accepted: 05/20/2023] [Indexed: 06/12/2023] Open
Abstract
Gastric cancer (GC) is a major public health problem worldwide, with high mortality rates due to late diagnosis and limited treatment options. Biomarker research is essential to improve the early detection of GC. Technological advances and research methodologies have improved diagnostic tools, identifying several potential biomarkers for GC, including microRNA, DNA methylation markers, and protein-based biomarkers. Although most studies have focused on identifying biomarkers in biofluids, the low specificity of these markers has limited their use in clinical practice. This is because many cancers share similar alterations and biomarkers, so obtaining them from the site of disease origin could yield more specific results. As a result, recent research efforts have shifted towards exploring gastric juice (GJ) as an alternative source for biomarker identification. Since GJ is a waste product during a gastroscopic examination, it could provide a "liquid biopsy" enriched with disease-specific biomarkers generated directly at the damaged site. Furthermore, as it contains secretions from the stomach lining, it could reflect changes associated with the developmental stage of GC. This narrative review describes some potential biomarkers for gastric cancer screening identified in gastric juice.
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Affiliation(s)
- Nayra Felípez
- Gastrointestinal Endoscopy Research Unit, Navarrabiomed, Hospital Universitario de Navarra (HUN), Navarra Institute for Health Research (IdiSNA), Universidad Pública de Navarra (UPNA), 31008 Pamplona, Spain
| | - Sheyla Montori
- Gastrointestinal Endoscopy Research Unit, Navarrabiomed, Hospital Universitario de Navarra (HUN), Navarra Institute for Health Research (IdiSNA), Universidad Pública de Navarra (UPNA), 31008 Pamplona, Spain
| | - Naroa Mendizuri
- Clinical Neuroproteomics Unit, Proteomics Platform, Navarrabiomed, Hospitalario Universitario de Navarra (HUN), Navarra Institute for Health Research (IdiSNA), Universidad Pública de Navarra (UPNA), 31008 Pamplona, Spain
| | - Joan Llach
- Department of Gastroenterology, Centro de Investigación Biomédica en Red en Enfermedades Hepáticas y Digestivas (CIBEREHD), IDIBAPS (Institut d'Investigacions Biomèdiques August Pi i Sunyer), 08036 Barcelona, Spain
- Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain
| | - Pedro G Delgado
- Gastroenterology Department, Hospital de Mérida, 06800 Mérida, Spain
| | - Leticia Moreira
- Department of Gastroenterology, Centro de Investigación Biomédica en Red en Enfermedades Hepáticas y Digestivas (CIBEREHD), IDIBAPS (Institut d'Investigacions Biomèdiques August Pi i Sunyer), 08036 Barcelona, Spain
- Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain
| | - Enrique Santamaría
- Clinical Neuroproteomics Unit, Proteomics Platform, Navarrabiomed, Hospitalario Universitario de Navarra (HUN), Navarra Institute for Health Research (IdiSNA), Universidad Pública de Navarra (UPNA), 31008 Pamplona, Spain
| | - Joaquín Fernández-Irigoyen
- Clinical Neuroproteomics Unit, Proteomics Platform, Navarrabiomed, Hospitalario Universitario de Navarra (HUN), Navarra Institute for Health Research (IdiSNA), Universidad Pública de Navarra (UPNA), 31008 Pamplona, Spain
| | - Eduardo Albéniz
- Gastroenterology Department, Hospital Universitario de Navarra (HUN), Navarrabiomed, Navarra Institute for Health Research (IdiSNA), Universidad Pública de Navarra (UPNA), 31008 Pamplona, Spain
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Gareev I, Ahmad A, Wang J, Beilerli A, Ilyasova T, Sufianov A, Beylerli O. Gastric juice non-coding RNAs as potential biomarkers for gastric cancer. Front Physiol 2023; 14:1179582. [PMID: 37179825 PMCID: PMC10169709 DOI: 10.3389/fphys.2023.1179582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023] Open
Abstract
Gastric cancer (GC), being one of the most common malignant human tumors, occupies the second position in the structure of mortality in men and women. High rates of morbidity and mortality in this pathology determine its extremely high clinical and social significance. Diagnosis and timely treatment of precancerous pathology is the main way to reduce morbidity and mortality, and early detection of GC and its adequate treatment improve prognosis. The ability to accurately predict the development of GC and start treatment on time, as well as the ability to determine the stage of the disease if the diagnosis is confirmed - non-invasive biomarkers can become the key to solving these and many other problems of modern medicine. One of the promising biomarkers being studied are non-coding RNAs, namely, miсroRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs). They are involved in a wide range of processes, including apoptosis, proliferation, differentiation, angiogenesis, which play a critical role in the development of GC oncogenesis. In addition, they are quite specific and stable due to their carriers (extracellular vesicles or Argonaute 2 protein) and can be detected in various human biological fluids, in particular gastric juice. Thus, miRNAs, lncRNAs, and circRNAs isolated from the gastric juice of GC patients are promising preventive, diagnostic and prognostic non-invasive biomarkers. This review article presents the characteristics of circulating or extracellular miRNAs, lncRNAs, and circRNAs in gastric juice, allowing their use in the GC preventive, diagnosis, prognosis and monitoring therapy.
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Affiliation(s)
- Ilgiz Gareev
- Educational and Scientific Institute of Neurosurgery, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russian
| | - Aamir Ahmad
- Academic Health System, Hamad Medical Corporation, Interim Translational Research Institute, Doha, Qatar
| | - Jiaqi Wang
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Aferin Beilerli
- Department of Obstetrics and Gynecology, Tyumen State Medical University, Tyumen, Russia
| | - Tatiana Ilyasova
- Department of Internal Diseases, Bashkir State Medical University, Ufa, Russia
| | - Albert Sufianov
- Educational and Scientific Institute of Neurosurgery, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russian
- Department of Neurosurgery, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Ozal Beylerli
- Educational and Scientific Institute of Neurosurgery, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russian
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Li S, Sun J, Ma J, Zhou C, Yang X, Zhang S, Huang L, Jia H, Shao Y, Zhang E, Zheng M, Zhao Q, Zang L. LncRNA LENGA acts as a tumor suppressor in gastric cancer through BRD7/TP53 signaling. Cell Mol Life Sci 2022; 80:5. [PMID: 36477655 PMCID: PMC11071885 DOI: 10.1007/s00018-022-04642-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 11/01/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022]
Abstract
It has been established that long noncoding RNAs (lncRNAs) play a crucial role in various cancer types, and there are vast numbers of long noncoding RNA transcripts that have been identified by high-throughput methods. However, the biological function of many novel aberrantly expressed lncRNAs remains poorly elucidated, especially in gastric cancer (GC). Here, we first identified a novel lncRNA termed LENGA (Low Expression Noncoding RNA in Gastric Adenocarcinoma), which was significantly downregulated in GC tissues compared to adjacent normal tissues. Next, we found that reduced expression of LENGA in GC was also associated with a shorter life expectancy. The proliferation, migration, and invasion of GC cells were increased after LENGA knockdown but restrained after LENGA overexpression in vitro and in vivo. It was further demonstrated that LENGA physically binds to BRD7 (bromodomain-containing 7) in the bromodomain domain and acts as a scaffold that enhances the interaction between BRD7 and TP53 (tumor protein p53), regulating the expression of a subset of genes in the p53 pathway, including CDKN1A (cyclin-dependent kinase inhibitor 1A) and PCDH7 (protocadherin 7), at the transcriptional level. Consistently, the expression of CDKN1A has a positive correlation with LENGA in GC patients. Taken together, this study uncovers a novel tumor suppressor lncRNA, LENGA, and describes its biological function, molecular mechanism, and clinical significance. This highlights the potential importance of targeting the LENGA/BRD7/TP53 axis in GC treatment.
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Affiliation(s)
- Shuchun Li
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jing Sun
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Junjun Ma
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Cixiang Zhou
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xiao Yang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Sen Zhang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Ling Huang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Hongtao Jia
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yanfei Shao
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Enkui Zhang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Minhua Zheng
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Qian Zhao
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Lu Zang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Abnormally Expressed lncRNAs as Potential Biomarkers for Gastric Cancer Risk: A Diagnostic Meta-Bioinformatics Analysis. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6712625. [PMID: 36389111 PMCID: PMC9652703 DOI: 10.1155/2022/6712625] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/10/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022]
Abstract
Background and Aims Abnormal expression of lncRNAs is relevant to the occurrence and development of gastric cancer (GC), but the significance remains inconclusive. We performed a diagnostic meta-bioinformatics analysis to elucidate the association between lncRNA expression and GC risk. Methods Published datasets were selected from PubMed, Embase, CNKI, and Web of Science, up to 1st December 2021. The pooled sensitivity (SEN), specificity (SPE), positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odds ratio (DOR), and area under the curve (AUC) were calculated to evaluate the diagnostic value. RNA sequencing data were downloaded for validation. Results 54 studies with 4671 patients and 4652 matched controls were included in the meta-analysis. The pooled SEN, SPE, PLR, NLR, DOR, and AUC were 0.71, 0.76, 2.9, 0.39, 8, and 0.79, respectively. Subgroup analyses showed that the DOR and AUC of intergenic lncRNAs, circulating lncRNAs, larger sample size (>200), and high-quality (NOS score ≥ 7) groups were superior to antisense lncRNAs, tissue lncRNAs, smaller sample size (≤200), and low-quality (NOS score < 7) groups, respectively. However, only circulating lncRNAs had significantly higher diagnostic utility than that tissue lncRNAs. Nine differentially expressed lncRNAs in the meta-analysis were verified in TCGA-STAD. PVT1 was the most effective single lncRNA, with AUC of 0.949, SEN of 0.808, and SPE of 0.969, while PVT1 and C5orf66-AS1 were the most effective combination, with AUC of 0.972, SEN of 0.941, and SPE of 0.937. Conclusion Abnormally expressed lncRNAs, especially circulating lncRNAs, might be potential diagnostic biomarkers for GC risk. A novel combined model of lncRNAs might achieve better GC diagnosis performance.
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Bohosova J, Kasik M, Kubickova A, Trachtova K, Stanik M, Poprach A, Slaby O. LncRNA PVT1 is increased in renal cell carcinoma and affects viability and migration in vitro. J Clin Lab Anal 2022; 36:e24442. [PMID: 35441392 PMCID: PMC9169165 DOI: 10.1002/jcla.24442] [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: 02/01/2022] [Revised: 03/16/2022] [Accepted: 03/24/2022] [Indexed: 11/23/2022] Open
Abstract
Background Renal cell carcinoma is difficult to diagnose and unpredictable in disease course and severity. There are no specific biomarkers for diagnosis and prognosis estimation feasible in clinical practice. Long non‐coding RNAs (lncRNAs) have emerged as potent regulators of gene expression in recent years. Aside from their cellular role, their expression patterns could be used as a biomarker of ongoing pathology. Methods In this work, we used next‐generation sequencing for global lncRNA expression profiling in tumor and non‐tumor tissue of RCC patients. The four candidate lncRNAs have been further validated on an independent cohort. PVT1, as the most promising lncRNA, has also been studied using functional in vitro tests. Results Next‐generation sequencing showed significant dysregulation of 1163 lncRNAs; among them top 20 dysregulated lncRNAs were AC061975.7, AC124017.1, AP000696.1, AC148477.4, LINC02437, GATA3‐AS, LINC01762, LINC01230, LINC01271, LINC01187, LINC00472, AC007849.1, LINC00982, LINC01543, AL031710.1, and AC019197.1 as down‐regulated lncRNAs; and SLC16A1‐AS1, PVT1, LINC0887, and LUCAT1 as up‐regulated lncRNAs. We observed statistically significant dysregulation of PVT1, LUCAT1, and LINC00982. Moreover, we studied the effect of artificial PVT1 decrease in renal cell line 786–0 and observed an effect on cell viability and migration. Conclusion Our results show not only the diagnostic but also the therapeutic potential of PVT1 in renal cell carcinoma.
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Affiliation(s)
- Julia Bohosova
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Marek Kasik
- Department of Urology, The University Hospital Brno, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Adela Kubickova
- Department of Pharmacology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Karolina Trachtova
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Michal Stanik
- Department of Urologic Oncology, Department of Comprehensive Cancer Care, Faculty of Medicine, Masaryk Memorial Cancer Institute, Masaryk University, Brno, Czech Republic
| | - Alexandr Poprach
- Department of Urologic Oncology, Department of Comprehensive Cancer Care, Faculty of Medicine, Masaryk Memorial Cancer Institute, Masaryk University, Brno, Czech Republic
| | - Ondrej Slaby
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
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Chi F, Qiu F, Jin X, Chen L, He G, Han S. LINC00982 Inhibits the Proliferation, Migration, and Invasion of Breast Cancer Cells Through the miR-765/DPF3 Axis. DNA Cell Biol 2022; 41:424-436. [PMID: 35325570 DOI: 10.1089/dna.2021.0866] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Breast cancer (BC) is one of the most frequently occurring malignant tumors in female adults. The long intergenic nonprotein coding RNA 00982 (LINC00982) has been regarded as a cancer suppressor in several human cancers. However, the function and the underlying mechanisms of LINC00982 have not been studied in BC. The present study found that LINC00982 was significantly downregulated in BC tumor tissues, and the low LINC00982 level predicts a poor prognosis of BC. Through the overexpression and suppression of LINC00982 in two BC cell lines, we found that LINC00982 could inhibit cell proliferation, migration, and invasion by suppressing the activity of the signal transducer and activator of transcription 3 (STAT3)/nuclear factor kappa B (NF-κB) signal pathway. Furthermore, luciferase reporter assay has been used to verify that LINC00982 functions as a molecular sponge for miR-765, which could target DPF3. The relative expression of miR-765 decreased with LINC00982 overexpressing, and DPF3 increased at the same time. In addition, the suppression of cell malignant phenotype caused by overexpression of LINC00982 can be reversed by inhibition of DPF3. To verify the function of LINC00982 in vivo, the BC cells were implanted in nude mice and the results suggested the tumor growth and malignant phenotype were suppressed by LINC00982. In this study, we prove that LINC00982 regulates the growth and development of BC through STAT3/NF-κB signal pathway, mediated by the miR-765/DPF3 axis. LINC00982 may function as a target molecule to take part in the prognosis and therapy of BC.
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Affiliation(s)
- Feng Chi
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Fang Qiu
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xiaoming Jin
- Department of Endocrinology, Northern Theater Air Force Hospital of the People's Liberation Army, Shenyang, Liaoning, China
| | - Long Chen
- Department of Breast Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Guijin He
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Sijia Han
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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Corral-Vazquez C, Blanco J, Aiese Cigliano R, Sarrate Z, Rivera-Egea R, Vidal F, Garrido N, Daub C, Anton E. The RNA content of human sperm reflects prior events in spermatogenesis and potential post-fertilization effects. Mol Hum Reprod 2021; 27:6265603. [PMID: 33950245 DOI: 10.1093/molehr/gaab035] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 04/09/2021] [Indexed: 01/18/2023] Open
Abstract
Transcriptome analyses using high-throughput methodologies allow a deeper understanding of biological functions in different cell types/tissues. The present study provides an RNA-seq profiling of human sperm mRNAs and lncRNAs (messenger and long non-coding RNAs) in a well-characterized population of fertile individuals. Sperm RNA was extracted from twelve ejaculate samples under strict quality controls. Poly(A)-transcripts were sequenced and aligned to the human genome. mRNAs and lncRNAs were classified according to their mean expression values (FPKM: Fragments Per Kilobase of transcript per Million mapped reads) and integrity. Gene Ontology analysis of the Expressed and Highly Expressed mRNAs showed an involvement in diverse reproduction processes, while the Ubiquitously Expressed and Highly Stable mRNAs were mainly involved in spermatogenesis. Transcription factor enrichment analyses revealed that the Highly Expressed and Ubiquitously Expressed sperm mRNAs were primarily regulated by zinc-fingers and spermatogenesis-related proteins. Regarding the Expressed lncRNAs, only one-third of their potential targets corresponded to Expressed mRNAs and were enriched in cell-cycle regulation processes. The remaining two-thirds were absent in sperm and were enriched in embryogenesis-related processes. A significant amount of post-testicular sperm mRNAs and lncRNAs was also detected. Even though our study is solely directed to the poly-A fraction of sperm transcripts, results indicate that both sperm mRNAs and lncRNAs constitute a footprint of previous spermatogenesis events and are configured to affect the first stages of embryo development.
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Affiliation(s)
- C Corral-Vazquez
- Genetics of Male Fertility Group, Unitat de Biologia Cel·lular (Facultat de Biociències), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - J Blanco
- Genetics of Male Fertility Group, Unitat de Biologia Cel·lular (Facultat de Biociències), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | | | - Z Sarrate
- Genetics of Male Fertility Group, Unitat de Biologia Cel·lular (Facultat de Biociències), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - R Rivera-Egea
- IVIRMA Valencia, IVI Foundation, Laboratorio de Andrología, Valencia, Spain
| | - F Vidal
- Genetics of Male Fertility Group, Unitat de Biologia Cel·lular (Facultat de Biociències), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - N Garrido
- IVI Foundation, Instituto de Investigación Sanitaria la Fe, Valencia, Spain
| | - C Daub
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - E Anton
- Genetics of Male Fertility Group, Unitat de Biologia Cel·lular (Facultat de Biociències), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
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Zheng L, Cao J, Liu L, Xu H, Chen L, Kang L, Gao L. Long noncoding RNA LINC00982 upregulates CTSF expression to inhibit gastric cancer progression via the transcription factor HEY1. Am J Physiol Gastrointest Liver Physiol 2021; 320:G816-G828. [PMID: 33236952 DOI: 10.1152/ajpgi.00209.2020] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Upregulating the expression of long noncoding RNA LINC00982 controlled cell proliferation in gastric cancer, but the regulatory molecular mechanisms are yet to be expounded. We here aimed to elaborate how LINC00982 regulated the malignancy of gastric cancer cells. RT-qPCR and Western blot analysis were used to detect the expression of LINC00982 and cathepsin F (CTSF) in gastric cancer tissues and cells. Modulatory effect of LINC00982 on gastric cancer cells was assessed by CCK-8, colony formation, Transwell migration, and invasion assays. The relationship between LINC00982, YRPW motif 1 (HEY1), and CTSF was examined by RNA-binding protein immunoprecipitation, luciferase assay, and chromatin immunoprecipitation, and their interaction in the regulation of gastric cancer cellular functions was analyzed by performing gain-of-function and rescue assays. The nude mouse model of tumor formation was developed to examine the effects of LINC00982 on tumorigenesis. LINC00982 was lowly expressed in gastric cancer tissues, whereas its overexpression impaired the proliferative, migratory, and invasive properties of gastric cancer cells. Furthermore, LINC00982 could bind to transcription factor HEY1 and inhibited its expression. Through blocking the binding of HEY1 to CTSF promoter, LINC00982 promoted the expression of CTSF. Overexpression of HEY1 or inhibition of CTSF could reverse the antitumor effects of LINC00982 on gastric cancer, which were further demonstrated in vivo. All these taken together, LINC00982 acted as a tumor suppressor in gastric cancer, which is therefore suggested to be a potential antitumor target for gastric cancer.NEW & NOTEWORTHY We identified LINC00982 as a promising antitumor target for the treatment of patients with gastric cancer. We also determined a regulatory network involved in the pathophysiology of gastric cancer wherein LINC00982 could bind to HEY1 to impair its binding to cathepsin F (CTSF) promoter and hence promote CTSF expression, which aids in better understanding of molecular mechanisms related to gastric tumorigenesis.
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Affiliation(s)
- Lei Zheng
- Department of Oncology, the First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Junlin Cao
- Department of Oncology, the First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Lijie Liu
- Department of Oncology, the First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Hongmei Xu
- Department of Oncology, the First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Lanlan Chen
- Department of Oncology, the First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Liying Kang
- Department of Oncology, Wuqing People's Hospital, Tianjin, China
| | - Liming Gao
- Department of Oncology, the First Hospital of Qinhuangdao, Qinhuangdao, China
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10
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Sun W, Jiang C, Ji Y, Xiao C, Song H. Long Noncoding RNAs: New Regulators of Resistance to Systemic Therapies for Gastric Cancer. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8853269. [PMID: 33506041 PMCID: PMC7808844 DOI: 10.1155/2021/8853269] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/07/2020] [Accepted: 12/19/2020] [Indexed: 02/07/2023]
Abstract
Gastric cancer (GC) is the second leading cause of cancer mortality and the fourth most commonly diagnosed malignant disease, with approximately 951,000 new cases diagnosed and approximately 723,000 cases of mortality each year. The highest mortality rate of GC is in East Asia, and the lowest is in North America. A large number of studies have demonstrated that GC patients are characterized by higher morbidity, metastasis rates, and mortality and lower early diagnosis rates, radical resection rates, and 5-year survival rates. All cases of GC can be divided into two important stages, namely, early- and advanced-stage GC, and the stage mainly determines the treatment strategy for and the therapeutic effect in GC patients. Patients with early-stage GC undergo radical surgery followed by chemotherapy, and the 5-year survival rate can be as high as 90%. However, patients with advanced-stage GC cannot undergo radical surgery because they are at risk for metastasis; therefore, they can choose only radiotherapy or chemotherapy and have a poor prognosis. Based on the lack of specific clinical manifestations and detection methods, most GC patients (>70%) are diagnosed in the advanced stage; therefore, continued efforts toward developing treatments have been focused on advanced-stage GC patients and include molecular targeted therapy, immunotherapy, and small molecular therapy. Nevertheless, in recent years, accumulating evidence has indicated that small molecules, especially long noncoding RNAs (lncRNAs), are involved in the occurrence, development, and progression of GC, and their abundantly dysregulated expression has been identified in GC tissues and cell lines. Therefore, lncRNAs are considered easily detectable molecules and ideal biomarkers or target-specific agents for the future diagnosis or treatment of GC. In this review, we primarily discuss the status of GC, the role of lncRNAs in GC, and the emerging systemic treatments for GC.
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Affiliation(s)
- Weihong Sun
- Department of Internal Medicine-Oncology Affiliated Qingdao Central Hospital, Qingdao University, 127 Siliu South Road, Qingdao 266042, China
- Department of Internal Medicine-Oncology Qingdao Tumor Hospital, 127 Siliu South Road, Qingdao 266042, China
| | - Changqing Jiang
- Department of Pathology Qingdao Municipal Hospital, Donghai Middle Road, Qingdao 266071, China
| | - Ying Ji
- Department of Internal Medicine-Oncology Affiliated Qingdao Central Hospital, Qingdao University, 127 Siliu South Road, Qingdao 266042, China
- Department of Internal Medicine-Oncology Qingdao Tumor Hospital, 127 Siliu South Road, Qingdao 266042, China
| | - Chao Xiao
- Department of Internal Medicine-Oncology Affiliated Qingdao Central Hospital, Qingdao University, 127 Siliu South Road, Qingdao 266042, China
- Department of Internal Medicine-Oncology Qingdao Tumor Hospital, 127 Siliu South Road, Qingdao 266042, China
| | - Haiping Song
- Department of Internal Medicine-Oncology Affiliated Qingdao Central Hospital, Qingdao University, 127 Siliu South Road, Qingdao 266042, China
- Department of Internal Medicine-Oncology Qingdao Tumor Hospital, 127 Siliu South Road, Qingdao 266042, China
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11
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Sexton RE, Al Hallak MN, Diab M, Azmi AS. Gastric cancer: a comprehensive review of current and future treatment strategies. Cancer Metastasis Rev 2020; 39:1179-1203. [PMID: 32894370 PMCID: PMC7680370 DOI: 10.1007/s10555-020-09925-3] [Citation(s) in RCA: 318] [Impact Index Per Article: 79.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023]
Abstract
Gastric cancer remains a major unmet clinical problem with over 1 million new cases worldwide. It is the fourth most commonly occurring cancer in men and the seventh most commonly occurring cancer in women. A major fraction of gastric cancer has been linked to variety of pathogenic infections including but not limited to Helicobacter pylori (H. pylori) or Epstein Barr virus (EBV). Strategies are being pursued to prevent gastric cancer development such as H. pylori eradication, which has helped to prevent significant proportion of gastric cancer. Today, treatments have helped to manage this disease and the 5-year survival for stage IA and IB tumors treated with surgery are between 60 and 80%. However, patients with stage III tumors undergoing surgery have a dismal 5-year survival rate between 18 and 50% depending on the dataset. These figures indicate the need for more effective molecularly driven treatment strategies. This review discusses the molecular profile of gastric tumors, the success, and challenges with available therapeutic targets along with newer biomarkers and emerging targets.
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Affiliation(s)
- Rachel E Sexton
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, 4100 John R, HWCRC 732, Detroit, MI, 48201, USA
| | - Mohammed Najeeb Al Hallak
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, 4100 John R, HWCRC 732, Detroit, MI, 48201, USA
| | - Maria Diab
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, 4100 John R, HWCRC 732, Detroit, MI, 48201, USA
| | - Asfar S Azmi
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, 4100 John R, HWCRC 732, Detroit, MI, 48201, USA.
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12
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Zong Z, Li H, Yu ZM, Tang FX, Zhu XJ, Tian HK, Zhou TC, Wang H. Prognostic thirteen-long non-coding RNAs (IncRNAs) could improve the survival prediction of gastric cancer. GASTROENTEROLOGIA Y HEPATOLOGIA 2020; 43:598-606. [DOI: 10.1016/j.gastrohep.2020.01.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/20/2020] [Accepted: 01/23/2020] [Indexed: 12/24/2022]
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13
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Zhao W, Jin Y, Wu P, Yang J, Chen Y, Yang Q, Huo X, Li J, De W, Chen J, Yang F. LINC00355 induces gastric cancer proliferation and invasion through promoting ubiquitination of P53. Cell Death Discov 2020; 6:99. [PMID: 33083020 PMCID: PMC7544820 DOI: 10.1038/s41420-020-00332-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/21/2020] [Accepted: 09/11/2020] [Indexed: 12/24/2022] Open
Abstract
Long noncoding RNAs (LncRNAs) have been reported to play critical roles in gastric cancer, but true biomarkers remain unknown. In this study, we found a new lncRNA LINC00355 that was involved in malignant progression of gastric cancer (GC) and further revealed its role and mechanism. Differentially expressed lncRNAs were identified through bioinformatics, and qRT-PCR was used to validate the expression of LINC00355 in gastric cancer tissues and cells. The biological role of LINC00355 in GC was detected by gene overexpression and knockdown experiments. Subcellular fractionation, qRT-PCR, and FISH were performed to detect the subcellular localization. Co-IP and western blotting were used to study the ubiquitination-mediated regulation of P53 and the expression of the E3 ligases RAD18 and UBE3C. The results showed that LINC00355 was significantly increased in gastric cancer cell lines and patient tissues and closely correlated with late stages, distant metastasis, and poor prognosis of patients. High expression of LINC00355 promoted the proliferation and invasion of gastric cancer cells in vivo and in vitro. Mechanistic studies found that LINC00355 that mainly located in the nucleus, acting as a transcriptional activator, promoted transcription of RAD18 and UBE3C, which both bind to P53 and mediate the ubiquitination and degradation of P53. Furthermore, LINC00355 overexpression enhanced the ubiquitination process, and LINC00355 knockdown alleviated it. These results indicated that LINC00355 induces gastric cancer cell proliferation and invasion by promoting transcription of RAD18 and UBE3C, which mediates ubiquitination of P53 and thereby plays a critical role in survival and tumorigenicity of gastric cancer cells. LINC00355 may represent a new mechanism for GC progression and provide a potential marker for GC diagnosis and treatment.
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Affiliation(s)
- Wenjing Zhao
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, People’s Republic of China
| | - Yan Jin
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, People’s Republic of China
| | - Peng Wu
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, People’s Republic of China
| | - Jian Yang
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, People’s Republic of China
| | - Yuanyuan Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanjing Medical University, 211166 Nanjing, People’s Republic of China
| | - Qianlu Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanjing Medical University, 211166 Nanjing, People’s Republic of China
| | - Xinying Huo
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, People’s Republic of China
| | - Juxue Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanjing Medical University, 211166 Nanjing, People’s Republic of China
| | - Wei De
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanjing Medical University, 211166 Nanjing, People’s Republic of China
| | - Jinfei Chen
- Cancer Center, Taikang Xianlin Drum Tower Hospital, Nanjing University School of Medicine, 210046 Nanjing, People’s Republic of China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 211166 Nanjing, People’s Republic of China
| | - Fen Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanjing Medical University, 211166 Nanjing, People’s Republic of China
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14
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Huang NS, Lei BW, Tan LC, Yu PC, Shi X, Wang Y, Ji QH, Wei WJ, Lu ZW, Wang YL. Mitotically associated long non-coding RNA is a tumor promoter in anaplastic thyroid cancer. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1226. [PMID: 33178758 PMCID: PMC7607122 DOI: 10.21037/atm-20-4530] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Patients with anaplastic thyroid cancer (ATC), which is among the deadliest of all cancers, often have a poor response to traditional therapies. Currently, the role of long non-coding RNAs (lncRNAs) in ATC carcinogenesis is unclear. In this study, we analyzed the lncRNA expression profile of ATC with the aim of identifying potential molecular targets for treatment of the disease. Methods Whole transcriptome sequencing of three ATC and two normal thyroid (NT) samples was performed, and the lncRNA expression profile of ATC was analyzed. Original data as well as datasets deposited in the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) were used for clinical validation. Cell proliferation, Transwell, and apoptosis assays were performed using ATC cell lines. Gene Ontology (GO) and gene set enrichment analyses (GSEA) were performed to determine the dysregulated pathways. Results Whole transcriptome sequencing revealed 182 lncRNAs to be differentially expressed in ATC. One of the lncRNAs, mitotically associated long non-coding RNA (MANCR; LINC00704), was significantly overexpressed in ATC cell lines and patient samples compared with NT and papillary thyroid cancer (PTC). MANCR depletion in ATC cells significantly inhibited cancer cell proliferation and invasion, and induced apoptosis. By further analyzing the transcriptome data, we identified 451 genes co-expressed with MANCR. GO and GSEA showed that the top dysregulated pathways were related to mitosis and cell cycle. Conclusions MANCR is a tumor promoter in ATC, and its role in carcinogenesis is possibly associated with cell cycle regulation. Because MANCR expression is minimal in most normal tissues, it may serve as a potential target in the future treatment of ATC.
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Affiliation(s)
- Nai-Si Huang
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Bo-Wen Lei
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Li-Cheng Tan
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Peng-Cheng Yu
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiao Shi
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yu Wang
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qing-Hai Ji
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wen-Jun Wei
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhong-Wu Lu
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yu-Long Wang
- Department of Head and Neck Surgery, Fudan University, Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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15
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Long noncoding RNA PART1 restrains aggressive gastric cancer through the epigenetic silencing of PDGFB via the PLZF-mediated recruitment of EZH2. Oncogene 2020; 39:6513-6528. [PMID: 32901105 DOI: 10.1038/s41388-020-01442-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 07/19/2020] [Accepted: 08/21/2020] [Indexed: 01/26/2023]
Abstract
Current reports refer to the role of long noncoding RNA (lncRNA) prostate androgen-regulated transcript 1 (PART1) as a tumor suppressor in some types of cancer but as an oncogene in other kinds of cancer. In gastric cancer, it had been reported to be downregulated. However, the clinical significance and underlying mechanism of PART1 function in gastric cancer remains undefined. Here, seven differential expression levels of noncoding RNAs (DE-lncRNAs) were screened from gastric cancer through a probe reannotation of a human exon array. PART1 was selected for further study because of its high fold change number. In our cohort, PART1 was identified as a significant downregulated lncRNA in gastric cancer tissues by qPCR and in situ hybridization (ISH), and its low expression was significantly correlated with postoperative metastasis and short overall survival time after surgery. Through the results of gain-of-function experiments, PART1 was confirmed as a tumor suppressor that can decrease not only cell viability, migration, and invasion in vitro but also tumorigenesis and tumor metastasis in vivo. Mechanistically, RNA pull-down and RNA-binding protein immunoprecipitation (RIP) showed that PART1 interacts with androgen receptor (AR), and then, promyelocytic leukemia zinc finger (PLZF) is upregulated in an androgen-independent manner. In a chain reaction, chromatin immunoprecipitation (ChIP) assay additionally illustrated that PLZF upregulation increased the enrichment of EZH2 and H3K27 trimethylation in the platelet-derived growth factor (PDGFB) promotor, thereby inhibition of PDGFB and the subsequent PDGFRβ/PI3K/Akt signaling pathway. Based on these findings, we showed PART1 plays a tumor suppressor role by promoting PLZF expression followed by recruitment of EZH2 to mediate epigenetic PDGFB silencing and downstream PI3K/Akt inhibition, suggesting that PART1 has a key role in restraining the aggressive ability of GC cells and providing a novel perspective on lncRNAs in GC progression.
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16
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Feng H, Liu X. Interaction between ACOT7 and LncRNA NMRAL2P via Methylation Regulates Gastric Cancer Progression. Yonsei Med J 2020; 61:471-481. [PMID: 32469171 PMCID: PMC7256001 DOI: 10.3349/ymj.2020.61.6.471] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 03/13/2020] [Accepted: 04/01/2020] [Indexed: 12/16/2022] Open
Abstract
PURPOSE Gastric cancer (GC) has a very poor prognosis when diagnosed at a late stage. Acyl-CoA thioesterase 7 (ACOT7) is a major isoform of the acyl coenzyme family that catalyzes the hydrolysis of fatty acyl-CoAs into unesterified free fatty acid and coenzyme A. The purpose of this study was to investigate the expression levels of ACOT7 in GC and mechanisms related therewith. MATERIALS AND METHODS Screening of systematic biology studies revealed ACOT7 as a key gene in GC, as well as involvement of the long non-coding RNA NMRAL2P in ACOT7 expression. In this study, GC tissues and adjacent tissue samples were obtained from 10 GC patients at the Department of Gastrointestinal Surgery. GES1 and SGC-7901 cells were collected and treated to silence ACOT7 and overexpress NMRAL2P. The expressions of ACOT7 and NMRAL2P were detected by real-time quantitative PCR and Western blot. Additionally, cell proliferation, apoptosis, migration, and invasion were examined. RESULTS ACOT7 was upregulated in gastric tumor tissues and GC cell lines. ACOT7 gene silencing induced a less malignant phenotype and was closely correlated to reduced cell proliferation and migration, altered cell cycle, and increased apoptosis. Furthermore, NMRAL2P was downregulated in tumor tissues and GC cell lines. NMRAL2P overexpression induced a more malignant phenotype and significantly inhibited the expression of ACOT7. Importantly, NMRAL2P indirectly methylated ACOT7 by binding to DNMT3b, thereby suppressing ACOT7 expression. CONCLUSION NMRAL2P activation suppresses ACOT7 expression in GC. Thus, ACOT7 could be a promising target for the treatment of GC.
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Affiliation(s)
- Huiqin Feng
- Department of Internal Medicine, Tongxiang Chinese Medicine Hospital, Tongxiang, China
| | - Xiaojian Liu
- Department of Surgery, Tongxiang First People's Hospital, Tongxiang, China.
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17
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Yuan L, Xu ZY, Ruan SM, Mo S, Qin JJ, Cheng XD. Long non-coding RNAs towards precision medicine in gastric cancer: early diagnosis, treatment, and drug resistance. Mol Cancer 2020; 19:96. [PMID: 32460771 PMCID: PMC7251695 DOI: 10.1186/s12943-020-01219-0] [Citation(s) in RCA: 191] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 05/21/2020] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer is a deadly disease and remains the third leading cause of cancer-related death worldwide. The 5-year overall survival rate of patients with early-stage localized gastric cancer is more than 60%, whereas that of patients with distant metastasis is less than 5%. Surgical resection is the best option for early-stage gastric cancer, while chemotherapy is mainly used in the middle and advanced stages of this disease, despite the frequently reported treatment failure due to chemotherapy resistance. Therefore, there is an unmet medical need for identifying new biomarkers for the early diagnosis and proper management of patients, to achieve the best response to treatment. Long non-coding RNAs (lncRNAs) in body fluids have attracted widespread attention as biomarkers for early screening, diagnosis, treatment, prognosis, and responses to drugs due to the high specificity and sensitivity. In the present review, we focus on the clinical potential of lncRNAs as biomarkers in liquid biopsies in the diagnosis and prognosis of gastric cancer. We also comprehensively discuss the roles of lncRNAs and their molecular mechanisms in gastric cancer chemoresistance as well as their potential as therapeutic targets for gastric cancer precision medicine.
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Affiliation(s)
- Li Yuan
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310006 China
| | - Zhi-Yuan Xu
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Banshan Road 1#, Gongshu District, Hangzhou, 310022 China
| | - Shan-Ming Ruan
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310006 China
| | - Shaowei Mo
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310006 China
| | - Jiang-Jiang Qin
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Banshan Road 1#, Gongshu District, Hangzhou, 310022 China
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou, 310053 China
| | - Xiang-Dong Cheng
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Banshan Road 1#, Gongshu District, Hangzhou, 310022 China
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18
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Chen Q, Huang X, Dong X, Wu J, Teng F, Xu H. Long non-coding RNA ERICH3-AS1 is an unfavorable prognostic factor for gastric cancer. PeerJ 2020; 8:e8050. [PMID: 32025363 PMCID: PMC6993749 DOI: 10.7717/peerj.8050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 10/16/2019] [Indexed: 01/13/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) play important roles in gastric cancer (GC), but the mechanism is not fully clear. ERICH3-AS1 (ERICH3 antisense RNA1) is affiliated with the non-coding RNA class which has proven to be involved in the prognostic of GC, but the function of ERICH3-AS1 is still unclear. In this study, we aim to explore the potential function of ERICH3-AS1 in the development of GC and analyze the prognostic role of ERICH3-AS1 in GC. We found that the lncRNA ERICH3-AS1 was significantly up-regulated in GC tissues in the analysis of The Cancer Genome Atlas (TCGA) data; the Kaplan-Meier analysis showed that the higher the expression of ERICH3-AS1 was, the earlier the recurrence and the poorer the prognosis would be in patients. Cox univariate and multivariate analyses revealed that ERICH3-AS1 was a risk factor of disease-free survival (DFS) (p < 0.05) and overall survival (OS) (p < 0.05) of patients. Through Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses, it demonstrated that the ERBB pathways, the mitogen-activated protein kinase (MAPK) pathways, the MTOR pathways, p53 pathways and Wnt pathways were differentially enriched in ERICH3-AS1 high expression phenotype. Furthermore, the correlation analysis showed that ERICH3-AS1 had significant correlations with apoptosis-related proteins such as BCL2L10 and CASP14; cell cycle-associated proteins CDK14 and invasion and migration-associated proteins such as MMP20, MMP26 and MMP27. In summary, we identified that increased ERICH3-AS1 might be a potential biomarker for diagnosis and independent prognostic factor of GC. Moreover, ERICH3-AS1 might participate in the oncogenesis and development of tumors via cell cycle and apoptosis pathway mediated by ERBB, MAPK, MTOR, p53 and Wnt pathways.
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Affiliation(s)
- Qiongyun Chen
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Xiaoqing Huang
- Department of Chinese Tranditional Medicine, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Xuan Dong
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Jingtong Wu
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Fei Teng
- Department of Endocrinology, the First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Hongzhi Xu
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
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19
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Ghafouri-Fard S, Taheri M. Long non-coding RNA signature in gastric cancer. Exp Mol Pathol 2019; 113:104365. [PMID: 31899194 DOI: 10.1016/j.yexmp.2019.104365] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/18/2019] [Accepted: 12/28/2019] [Indexed: 02/07/2023]
Abstract
Gastric cancer as a common human malignancy has been associated with aberrant expressions of several coding and non-coding genes. Long non-coding RNAs (lncRNAs) as regulators of gene expressions at different genomic, transcriptomic and post-transcriptomic levels are among putative biomarkers and therapeutic targets in gastric cancer. In the present study, we have searched available literature and listed lncRNAs that are involved in the pathogenesis of gastric cancer. In addition, we discuss associations between expressions of these lncRNAs and tumoral features or risk factors for gastric cancer. Based on the established role of lncRNAs in regulation of genomic stability, cell cycle, apoptosis, angiogenesis and other aspects of cell physiology, the potential of these transcripts as therapeutic targets in gastric cancer should be evaluated in future studies.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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20
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Overexpression of long non-coding RNA LINC00982 suppresses cell proliferation and tumor growth of papillary thyroid carcinoma through PI3K-ATK signaling pathway. Biosci Rep 2019; 39:BSR20191210. [PMID: 31262968 PMCID: PMC6629942 DOI: 10.1042/bsr20191210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/24/2019] [Accepted: 06/28/2019] [Indexed: 12/24/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been widely reported that involved in human cancers, including papillary thyroid carcinoma (PTC). The present study aims to investigate the biological role of LINC00982 in PTC. The mRNA expression of LINC00982 in human PTC tissues was detected using qPCR. Moreover, Kaplan-Meier method was performed to analyze the internal relevance between LINC00982 expression and overall survival (OS) rate of patients with PTC. In addition, gain- and loss-of-functions assays were performed to detect the effects of LINC00982 on the cell proliferation and migration in PTC cells. Furthermore, western blot assay was used to measure the alteration expression levels of apoptosis relative proteins and the relative protein involved phosphatidylinositol 3-kinase (PI3K)/AKT signaling pathway. Finally, a xenograft model was used to analyze the antitumor role of LINC00982 in vivo Here, we found that LINC00982 was decreased in human PTC tissues. Patients with decreased LINC00982 expression levels had a reduced OS (P=0.0019) compared with those with high LINC00982 expression levels. Overexpression of LINC00982 suppressed the proliferation and migration of BHT101 and B-CPAP cells and promoted cell apoptosis. Knockdown of LINC00982 promoted the proliferation and migration of BHT101 and B-CPAP cells and induced cell apoptosis. Moreover, in vivo assay showed that overexpression of LINC00982 could suppress the growth of PTC. Finally, LINC00982 could regulate the activity of PI3K/AKT signaling pathway in vitro and in vivo Taken together, our findings demonstrated that overexpression of LINC00982 could suppress cell proliferation and induce cell apoptosis by regulating PI3K/AKT signaling pathway in PTC.
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21
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Zhang J, Zhang S, Zuo L, Yue W, Li S, Xin S, Liu L, Lu J. Differential expression profiling of lncRNAs related to Epstein‐Barr virus infection in the epithelial cells. J Med Virol 2019; 91:1845-1855. [DOI: 10.1002/jmv.25516] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 06/05/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Jing Zhang
- NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya HospitalCentral South University Changsha China
- Department of Microbiology, School of Basic Medical ScienceCentral South University Changsha China
| | - Siwei Zhang
- NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya HospitalCentral South University Changsha China
- Department of Microbiology, School of Basic Medical ScienceCentral South University Changsha China
| | - Lielian Zuo
- NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya HospitalCentral South University Changsha China
- Department of Microbiology, School of Basic Medical ScienceCentral South University Changsha China
| | - Wenxing Yue
- NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya HospitalCentral South University Changsha China
- Department of Microbiology, School of Basic Medical ScienceCentral South University Changsha China
| | - Shen Li
- NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya HospitalCentral South University Changsha China
- Department of Microbiology, School of Basic Medical ScienceCentral South University Changsha China
| | - Shuyu Xin
- NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya HospitalCentral South University Changsha China
- Department of Microbiology, School of Basic Medical ScienceCentral South University Changsha China
| | - Lingzhi Liu
- NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya HospitalCentral South University Changsha China
- Department of Microbiology, School of Basic Medical ScienceCentral South University Changsha China
| | - Jianhong Lu
- NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya HospitalCentral South University Changsha China
- Department of Microbiology, School of Basic Medical ScienceCentral South University Changsha China
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22
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LncRNAs with miRNAs in regulation of gastric, liver, and colorectal cancers: updates in recent years. Appl Microbiol Biotechnol 2019; 103:4649-4677. [PMID: 31062053 DOI: 10.1007/s00253-019-09837-5] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 04/07/2019] [Accepted: 04/08/2019] [Indexed: 12/15/2022]
Abstract
Long noncoding RNA (lncRNA) is a kind of RNAi molecule composed of hundreds to thousands of nucleotides. There are several major types of functional lncRNAs which participate in some important cellular pathways. LncRNA-RNA interaction controls mRNA translation and degradation or serves as a microRNA (miRNA) sponge for silencing. LncRNA-protein interaction regulates protein activity in transcriptional activation and silencing. LncRNA guide, decoy, and scaffold regulate transcription regulators of enhancer or repressor region of the coding genes for alteration of expression. LncRNA plays a role in cellular responses including the following activities: regulation of chromatin structural modification and gene expression for epigenetic and cell function control, promotion of hematopoiesis and maturation of immunity, cell programming in stem cell and somatic cell development, modulation of pathogen infection, switching glycolysis and lipid metabolism, and initiation of autoimmune diseases. LncRNA, together with miRNA, are considered the critical elements in cancer development. It has been demonstrated that tumorigenesis could be driven by homeostatic imbalance of lncRNA/miRNA/cancer regulatory factors resulting in biochemical and physiological alterations inside the cells. Cancer-driven lncRNAs with other cellular RNAs, epigenetic modulators, or protein effectors may change gene expression level and affect the viability, immortality, and motility of the cells that facilitate cancer cell cycle rearrangement, angiogenesis, proliferation, and metastasis. Molecular medicine will be the future trend for development. LncRNA/miRNA could be one of the potential candidates in this category. Continuous studies in lncRNA functional discrepancy between cancer cells and normal cells and regional and rational genetic differences of lncRNA profiles are critical for clinical research which is beneficial for clinical practice.
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Qi D, Wang Q, Wu M, Zhang X. Comprehensive bioinformatics analysis of lncRNAs in gastric cancer. Oncol Lett 2019; 17:1279-1291. [PMID: 30655896 PMCID: PMC6313033 DOI: 10.3892/ol.2018.9707] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 07/03/2018] [Indexed: 12/17/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been generally considered to serve important roles in various types of cancer, including gastric cancer. However, a comprehensive understanding of lncRNAs in gastric cancer requires further study. The present study performed an in-depth study revealed 50 differently expressed lncRNAs. The changed cellular pathways and biological process in gastric cancer were determined. To further confirm the functions of the differently expressed lncRNAs, co-expression networks were constructed between the lncRNAs and mRNA; this lead to the identification of 6 modules, which participated in various cellular pathways. In addition, 2 lncRNAs were identified which were associated with clinical outcome. The biological analysis and experimental evidence suggested that LINC00982 inhibited, while LL22NC03-N14H11.1 promoted the proliferation of gastric cancer cells. These lncRNAs may be considered as potential prognostic factor in gastric cancer.
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Affiliation(s)
- Dongdong Qi
- Department of Clinical Laboratory, Hulunbuir Mental Health Center, Hulunbuir, Inner Mongolia 022150, P.R. China
| | - Qiang Wang
- Department of General Surgery, Inner Mongolia Forestry General Hospital, Hulunbuir, Inner Mongolia 022150, P.R. China
| | - Meiqing Wu
- Dermatological Department, Inner Mongolia Forestry General Hospital, Hulunbuir, Inner Mongolia 022150, P.R. China
| | - Xiong Zhang
- Hulunbuir Mental Health Center, Hulunbuir, Inner Mongolia 022150, P.R. China
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24
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Prognostic Value of Long Noncoding RNAs in Patients with Gastrointestinal Cancer: A Systematic Review and Meta-Analysis. DISEASE MARKERS 2018; 2018:5340894. [PMID: 30598708 PMCID: PMC6287160 DOI: 10.1155/2018/5340894] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/10/2018] [Accepted: 09/20/2018] [Indexed: 12/11/2022]
Abstract
Gastrointestinal cancers (GICs) are a huge threat to human health, which mainly include esophageal, gastric, and colorectal cancers. The purpose of this study was to clarify the prognostic value of long noncoding RNAs (lncRNAs) in GICs. A total of 111 articles were included, and 13103 patients (3123 with esophageal cancer, 4972 with gastric cancer, and 5008 with colorectal cancer) were enrolled in this study. The pooled hazard ratio (HR) values and corresponding 95% confidence interval (95% CI) of overall survival (OS) related to different lncRNA expressions in esophageal, gastric, colorectal, and gastrointestinal cancer patients were 1.92 (1.70–2.16), 1.96 (1.77–2.16), 2.10 (1.87–2.36), and 2.00 (1.87–2.13), respectively. We have identified 74 lncRNAs which were associated closely with poor prognosis of GIC patients, including 58 significantly upregulated lncRNA expression and 16 significantly downregulated lncRNA expression. In addition, 47 of the included studies revealed relative mechanisms and 12 of them investigated the correlation between lncRNAs and microRNAs. Taken together, this meta-analysis supports that specific lncRNAs are significantly related to the prognosis of GIC patients and may serve as novel markers for predicting the prognosis of GIC patients. Furthermore, lncRNAs may have a promising contribution to lncRNA-based targeted therapy and clinical decision-making in the future.
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25
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Mo X, Wu Y, Chen L, Zhai M, Gao Z, Hu K, Guo J. Global expression profiling of metabolic pathway-related lncRNAs in human gastric cancer and the identification of RP11-555H23.1 as a new diagnostic biomarker. J Clin Lab Anal 2018; 33:e22692. [PMID: 30320481 DOI: 10.1002/jcla.22692] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 09/20/2018] [Accepted: 09/21/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) have roles in regulating metabolism; however, the global expression profile of metabolic pathway-associated lncRNAs in gastric cancer is unknown. The purpose of our study was to examine metabolic pathway-related lncRNAs in gastric cancer and their possible diagnostic values. METHODS Differential expression patterns of metabolic pathway-related lncRNAs between gastric cancer and paired nontumor tissues were detected using metabolic pathway-associated lncRNA microarrays. The expression of RP11-555H23.1, one representative metabolic pathway-associated lncRNA, was validated using quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR). The associations between RP11-55H23.1 expression and the clinicopathological features of gastric cancer patients were analyzed. A receiver operating characteristic (ROC) curve was further established. RESULTS A total of 114 differentially expressed metabolic pathway-associated lncRNAs (fold change >2, P < 0.05) between cancer and nontumor tissues were found (GEO No. GSE96856). Among them, TUG1, RP11-555H23.1, RP1-257I20.13, UGP2, GCSHP3, and XLOC_000889 lncRNAs were downregulated more than sixfold in gastric cancer tissues. In contrast, RP11-605F14.2, TBC1D3P5, BC130595, LINC00475, RP11-19P22.6, BC080653, XLOC_004923, AFAP1-AS1, EPB49, and RP11-296I10.3 lncRNAs were upregulated more than sixfold in gastric cancer tissues. We further demonstrated that RP11-555H23.1 expression was significantly correlated with TNM stage (P = 0.038). The area under the ROC curve (AUC) was 0.65, and the specificity and sensitivity were 62% and 81%, respectively. CONCLUSIONS Metabolic pathway-associated lncRNAs play an important role in the occurrence of gastric cancer, and metabolic pathway-associated lncRNAs, such as RP11-555H23.1, may represent novel biomarkers of gastric cancer.
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Affiliation(s)
- Xiaoyan Mo
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Yuanyuan Wu
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Li Chen
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Ming Zhai
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Zhengdong Gao
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Kainan Hu
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Junming Guo
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
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26
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Lin MT, Song HJ, Ding XY. Long non-coding RNAs involved in metastasis of gastric cancer. World J Gastroenterol 2018; 24:3724-3737. [PMID: 30197478 PMCID: PMC6127659 DOI: 10.3748/wjg.v24.i33.3724] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/22/2018] [Accepted: 06/27/2018] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is one of the most frequently diagnosed malignant diseases. The molecular mechanisms of metastasis remain unclear. Recently, studies have shown that long non-coding RNAs (lncRNAs) play critical roles in metastasis. Therefore, deeper understanding of this mechanism could provide potential diagnostic tools and therapeutic targets for metastatic GC. This review focuses on dysregulated lncRNAs in GC metastases. Due to the identification of multiple diverse mechanisms involved in GC metastasis, we classified them into seven categories, including lncRNAs related to epithelial-mesenchymal transition, regulation of degradation of extracellular matrix, angiopoiesis, vasculogenic mimicry, and immunologic escape. As the TNM stage is pivotal for evaluating the severity and prognosis of GC patients, we summarize the lncRNAs relevant to lymphatic metastasis, distant metastasis and TNM classification. This review summarizes the lncRNAs related to metastasis, which may provide insight into the mechanisms, and provide potential markers for prognostic prediction and monitoring the relapse of GC.
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MESH Headings
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Cell Movement/genetics
- Epithelial-Mesenchymal Transition/genetics
- Extracellular Matrix/genetics
- Extracellular Matrix/metabolism
- Extracellular Matrix/pathology
- Gene Expression Regulation, Neoplastic
- Humans
- Lymphatic Metastasis
- Neoplasm Recurrence, Local/genetics
- Neoplasm Recurrence, Local/immunology
- Neoplasm Recurrence, Local/pathology
- Neovascularization, Pathologic/genetics
- Neovascularization, Pathologic/immunology
- Neovascularization, Pathologic/pathology
- Prognosis
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/immunology
- RNA, Long Noncoding/metabolism
- Stomach Neoplasms/genetics
- Stomach Neoplasms/immunology
- Stomach Neoplasms/mortality
- Stomach Neoplasms/pathology
- Tumor Escape/genetics
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Affiliation(s)
- Meng-Ting Lin
- Medical School of Ningbo University, Ningbo 315000, Zhejiang Province, China
| | - Hao-Jun Song
- Gastroenterology Department, Ningbo First Hospital, Ningbo 315000, Zhejiang Province, China
| | - Xiao-Yun Ding
- Gastroenterology Department, Ningbo First Hospital, Ningbo 315000, Zhejiang Province, China
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27
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Gao S, Zhao ZY, Wu R, Zhang Y, Zhang ZY. Prognostic value of long noncoding RNAs in gastric cancer: a meta-analysis. Onco Targets Ther 2018; 11:4877-4891. [PMID: 30147339 PMCID: PMC6098423 DOI: 10.2147/ott.s169823] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background In the last few years, accumulating evidence has indicated that numerous long noncoding RNAs (lncRNAs) are abnormally expressed in gastric cancer (GC) and are associated with the survival of GC patients. This study aimed to conduct a meta-analysis on 19 lncRNAs (AFAP1 antisense RNA 1 [AFAP1-AS1], CDKN2B antisense RNA 1 [ANRIL], cancer susceptibility 15 [CASC15], colon cancer associated transcript 2 [CCAT2], gastric adenocarcinoma associated, positive CD44 regulator, long intergenic noncoding RNA [GAPLINC], H19, imprinted maternally expressed transcript [H19], HOX transcript antisense RNA [HOTAIR], HOXA distal transcript antisense RNA [HOTTIP], long intergenic non-protein coding RNA 673 [LINC00673], metastasis-associated lung adenocarcinoma transcript 1 [MALAT1], maternally expressed 3 [MEG3], promoter of CDKN1A antisense DNA damage activated RNA [PANDAR], Pvt1 oncogene [PVT1], SOX2 overlapping transcript [Sox2ot], SPRY4 intronic transcript 1 [SPRY4-IT1], urothelial cancer associated 1 [UCA1], X inactive specific transcript [XIST], ZEB1 antisense RNA 1 [ZEB1-AS1] and ZNFX1 antisense RNA 1 [ZFAS1]) to systematically estimate their prognostic value in GC. Methods The qualified literature was systematically searched in PubMed, Web of Science, Embase and Cochrane Database of Systematic Reviews (up to March 16, 2018), and one meta-analysis relating to the relationship between lncRNA expression and overall survival (OS) of GC patients was performed. The only evaluation criterion of survival results was OS. Results A total of 6,095 GC patients and 19 lncRNAs from 51 articles were included in the present study. Among the listed 19 lncRNAs, 18 lncRNAs (other than SPRY4-IT1) showed a significantly prognostic value (P<0.05). Conclusion This meta-analysis suggested that the abnormally expressed lncRNAs (AFAP1-AS1, ANRIL, CASC15, CCAT2, GAPLINC, H19, HOTAIR, HOTTIP, LINC00673, MALAT1, MEG3, PANDAR, PVT1, Sox2ot, UCA1, XIST, ZEB1-AS1 and ZFAS1) were significantly associated with the survival of GC patients, among which AFAP1-AS1, CCAT2, LINC00673, PANDAR, PVT1, Sox2ot, ZEB1-AS1 and ZFAS1 were strong candidates in predicting the prognosis of GC patients.
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Affiliation(s)
- Song Gao
- The Second Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China,
| | - Zhi-Ying Zhao
- Division of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Rong Wu
- The Second Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China,
| | - Yue Zhang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China,
| | - Zhen-Yong Zhang
- The Second Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China,
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28
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Virgilio E, Giarnieri E, Giovagnoli MR, Montagnini M, Proietti A, D'Urso R, Mercantini P, Balducci G, Cavallini M. Long non-coding RNAs in the gastric juice of gastric cancer patients. Pathol Res Pract 2018; 214:1239-1246. [PMID: 30078471 DOI: 10.1016/j.prp.2018.07.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/22/2018] [Accepted: 07/23/2018] [Indexed: 01/01/2023]
Abstract
Differently from other digestive malignancies, gastric cancer (GC) carcinogenesis seems more heterogeneous and unclear. This entails failing in identification of reliable serum tumor markers for screening early GC (EGC) as well as persisting ominous prognosis of this disease. Recently, investigation of human noncoding genome, especially long noncoding molecules (lncRNAs), has provided promising data. As for GC, however, since the current information on GC-specific lncRNAs is still scarce and comes largely from analyses performed on tissue or serum of affected patients, we decided to review the current literature dealing with expression of such molecules in the gastric juice (GJ) of GC patients. In the case of GC, in fact, several cytological and molecular works have already demonstrated GJ to be an interesting biological material for improving clinicopathologic and prognostic knowledge of this cancer. For this review, we burrowed into the literature on lncRNAs expressed in GJ of GC patients. PubMed, Science Direct, Scopus, Web of Science, Google Scholar and ResearchGate were the search engines entertained. As of 2018, only seven studies have been reported. LINC00152, AA174084, UCA1, RMRP, ABHD11-AS1, LINC00982 and H19 were the GJ lncRNAs examined. Following our review, we can conclude that, due to their high specificity and reliability, GJ lncRNAs should deserve a prominent role in the field of GC research: importantly, they could be used for screening EGC, ameliorating the existing methods of staging (which are still far from being completely accurate), improving the prognostic capacity of the current diagnostic armamentarium and, finally, providing new and valuable therapeutic targets.
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Affiliation(s)
- Edoardo Virgilio
- Departments of Medical and Surgical Sciences and Translational Medicine, Faculty of Medicine and Psychology, Sapienza University, St. Andrea Hospital, Rome, Italy.
| | - Enrico Giarnieri
- Departments of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sapienza University, St. Andrea Hospital, Rome, Italy
| | - Maria Rosaria Giovagnoli
- Departments of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sapienza University, St. Andrea Hospital, Rome, Italy
| | - Monica Montagnini
- Departments of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sapienza University, St. Andrea Hospital, Rome, Italy
| | - Antonella Proietti
- Departments of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sapienza University, St. Andrea Hospital, Rome, Italy
| | - Rosaria D'Urso
- Departments of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sapienza University, St. Andrea Hospital, Rome, Italy
| | - Paolo Mercantini
- Departments of Medical and Surgical Sciences and Translational Medicine, Faculty of Medicine and Psychology, Sapienza University, St. Andrea Hospital, Rome, Italy
| | - Genoveffa Balducci
- Departments of Medical and Surgical Sciences and Translational Medicine, Faculty of Medicine and Psychology, Sapienza University, St. Andrea Hospital, Rome, Italy
| | - Marco Cavallini
- Departments of Medical and Surgical Sciences and Translational Medicine, Faculty of Medicine and Psychology, Sapienza University, St. Andrea Hospital, Rome, Italy
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29
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Long non-coding RNAs: crucial regulators of gastrointestinal cancer cell proliferation. Cell Death Discov 2018; 4:50. [PMID: 29736267 PMCID: PMC5919979 DOI: 10.1038/s41420-018-0051-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 03/14/2018] [Accepted: 03/19/2018] [Indexed: 12/13/2022] Open
Abstract
Studies of long non-coding RNAs (lncRNAs) have been prevalent in the field of non-coding RNA regulation in recent years. LncRNAs exert crucial effects on malignant cell processes in the gastrointestinal system, including proliferation. Aberrant lncRNA expression, through both oncogenes and tumor suppressor genes, is instrumental to tumor cell proliferation. Here, we summarize the different molecular mechanisms and relevant signaling pathways through which multifarious lncRNAs regulate cell proliferation and we show that lncRNAs are potential biomarkers for gastrointestinal cancers.
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30
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Gu J, Li Y, Fan L, Zhao Q, Tan B, Hua K, Wu G. Identification of aberrantly expressed long non-coding RNAs in stomach adenocarcinoma. Oncotarget 2018; 8:49201-49216. [PMID: 28484081 PMCID: PMC5564761 DOI: 10.18632/oncotarget.17329] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 04/11/2017] [Indexed: 01/09/2023] Open
Abstract
Aim Stomach adenocarcinoma (STAD) is a common malignancy worldwide. This study aimed to identify the aberrantly expressed long non-coding RNAs (lncRNAs) in STAD. Results Total of 74 DElncRNAs and 449 DEmRNAs were identified in STAD compared with paired non-tumor tissues. The DElncRNA/DEmRNA co-expression network was constructed, which covered 519 nodes and 2993 edges. The qRT-PCR validation results of DElncRNAs were consistent with our bioinformatics analysis based on RNA-sequencing. The DEmRNAs co-expressed with DElncRNAs were significantly enriched in gastric acid secretion, complement and coagulation cascades, pancreatic secretion, cytokine-cytokine receptor interaction and Jak-STAT signaling pathway. The expression levels of the nine candidate DElncRNAs in TCGA database were compatible with our RNA-sequencing. FEZF1-AS1, HOTAIR and LINC01234 had the potential diagnosis value for STAD. Materials and Methods The lncRNA and mRNA expression profile of 3 STAD tissues and 3 matched adjacent non-tumor tissues was obtained through high-throughput RNA-sequencing. Differentially expressed lncRNAs/mRNAs (DElncRNAs/DEmRNAs) were identified in STAD. DElncRNA/DEmRNA co-expression network construction, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were conducted to predict the biological functions of DElncRNAs. Quantitative real-time polymerase chain reaction (qRT-PCR) was subjected to validate the expression levels of DEmRNAs and DElncRNAs. Moreover, the expression of DElncRNAs was validated through The Cancer Genome Atlas (TCGA) database. The diagnosis value of candidate DElncRNAs was accessed by receiver operating characteristic (ROC) analysis. Conclusions Our work might provide useful information for exploring the tumorigenesis mechanism of STAD and pave the road for identification of diagnostic biomarkers in STAD.
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Affiliation(s)
- Jianbin Gu
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Hebei, China
| | - Yong Li
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Hebei, China
| | - Liqiao Fan
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Hebei, China
| | - Qun Zhao
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Hebei, China
| | - Bibo Tan
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Hebei, China
| | - Kelei Hua
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Hebei, China
| | - Guobin Wu
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Hebei, China
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31
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Nasrollahzadeh-Khakiani M, Emadi-Baygi M, Schulz WA, Nikpour P. Long noncoding RNAs in gastric cancer carcinogenesis and metastasis. Brief Funct Genomics 2018; 16:129-145. [PMID: 27122631 DOI: 10.1093/bfgp/elw011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Recent studies of the human transcriptome, most prominently by the ENCyclopedia Of DNA Elements project, have revealed an unexpected number of noncoding RNAs (ncRNAs). Long noncoding RNAs (lncRNAs) are typically referred to a heterogeneous group of polyadenylated long ncRNAs, with a length of > 200 nt. LncRNAs constitute an integral part of tumor biology, with many lncRNAs discovered to be aberrantly expressed in various cancer types. They are involved in many aspects of cancer pathogenesis from its initiation to progression, metastasis and treatment response. Gastric cancer (GC) is the third leading cause of cancer death worldwide. Despite the current improvements of life expectancy and survival rate, most of the patients are diagnosed when their cancer has been progressed to advanced stages. Therefore, unraveling the molecular mechanisms of GC to find early-stage biomarkers is urgent. As the list of lncRNAs with deregulated expression in GC is steadily expanding, these molecules offer a source for developing GC-specific biomarkers. In this review, we will present and discuss those lncRNAs whose expression has been shown to be deregulated in GC.
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32
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Ma Z, Huang H, Wang J, Zhou Y, Pu F, Zhao Q, Peng P, Hui B, Ji H, Wang K. Long non-coding RNA SNHG15 inhibits P15 and KLF2 expression to promote pancreatic cancer proliferation through EZH2-mediated H3K27me3. Oncotarget 2017; 8:84153-84167. [PMID: 29137412 PMCID: PMC5663584 DOI: 10.18632/oncotarget.20359] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 05/29/2017] [Indexed: 01/17/2023] Open
Abstract
Long non-coding RNA (lncRNA) is emerging as an critical regulator in multiple cancers, including pancreatic cancer (PC). Recently, lncRNA SNHG15 was found to be up-regulated in gastric cancer and hepatocellular carcinoma, exerting oncogenic effects. Nevertheless, the biological function and regulatory mechanism of SNHG15 remain unclear in pancreatic cancer (PC). In this study, we reported that SNHG15 expression was also upregulated in PC tissues, and its overexpression was remarkably associated with tumor size, tumor node metastasis (TNM) stage and lymph node metastasis in patients with PC. SNHG15 knockdown inhibited proliferative capacities and suppressed apoptotic rate of PC cells in vitro, and impaired in-vivo tumorigenicity. Additionally, RNA immunoprecipitation (RIP) assays showed that SNHG15 epigenetically repressed the P15 and Kruppel-like factor 2 (KLF2) expression via binding to enhancer of zeste homolog 2 (EZH2), and chromatin immunoprecipitation assays (CHIP) assays demonstrated that EZH2 was capable of binding to promoter regions of P15 and KLF2 to induce histone H3 lysine 27 trimethylation (H3K27me3). Furthermore, rescue experiments indicated that SNHG15 oncogenic function partially involved P15 and KLF2 repression. Consistently, an inverse correlation between the expression of SNHG15 and traget genes were found in PC tissues. Our results reported that SNHG15 could act as an oncogene in PC, revealing its potential value as a biomarker for early detection and individualized therapy.
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Affiliation(s)
- Zhonghua Ma
- The Second Clinical Medical College of Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China.,Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China
| | - Hesuyuan Huang
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, Jiangsu, People's Republic of China.,Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China
| | - Jirong Wang
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China
| | - Yan Zhou
- Department of Oncology, The Affiliated Yixing Hospital of Jiangsu University, Wuxi 214200, Jiangsu, People's Republic of China
| | - Fuxing Pu
- Department of Medical Center for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China
| | - Qinghong Zhao
- Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China
| | - Peng Peng
- Department of Oncology, Second Hospital of Nanjing, Nanjing 210000, Jiangsu, People's Republic of China
| | - Bingqing Hui
- The Second Clinical Medical College of Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China.,Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China
| | - Hao Ji
- The Second Clinical Medical College of Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China.,Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China
| | - Keming Wang
- The Second Clinical Medical College of Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China.,Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, People's Republic of China
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Gong H, Wen H, Zhu X, Lian Y, Yang X, Qian Z, Zhu J. High expression of long non-coding RNA ZEB1-AS1 promotes colorectal cancer cell proliferation partially by suppressing p15 expression. Tumour Biol 2017; 39:1010428317705336. [PMID: 28618933 DOI: 10.1177/1010428317705336] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
This study aims to investigate the function of long non-coding RNA ZEB1-AS1, reveal its molecular mechanism in colorectal cancer cell growth, and evaluate its clinical significance in colorectal cancer patients. ZEB1-AS1 has reported in the development of several cancers, but the biological role of it in colorectal cancer has not been discussed. In this report, ZEB1-AS1 expression level was measured with quantitative real-time polymerase chain reaction in 63 pairs of colorectal cancer tissues and paired adjacent non-tumor colorectal tissues. The relationship between ZEB1-AS1 expression and overall survival was analyzed by virtue of Kaplan-Meier analysis. Subsequently, small interfering RNA or lentivirus vector-mediated lncRNA ZEB1-AS1 was transfected into colorectal cancer cell lines. Cell viability and apoptosis were examined. Later, nude mouse transplantation experiment was conducted to evaluate the effect of ZEB1-AS1 on colorectal cancer development in vivo. It turns out that ZEB1-AS1 is upregulated in colorectal cancer tissues and its expression is significantly associated with overall survival rate and recurrence-free survival. Upregulation of ZEB1-AS1 colorectal cancer promotes cell proliferation and inhibits cell apoptosis. In addition, cell cycle inhibitory protein p15 participates in the oncogenic function of ZEB1-AS1. Collectively, ZEB1-AS1 has asignificant effect on colorectal cancer pathological process and serves as a valuable prognostic biomarker for colorectal cancer.
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Affiliation(s)
- Huangbo Gong
- 1 The Second Clinical Medical College of Nanjing Medical University, Nanjing, China.,2 Pancreas Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hao Wen
- 2 Pancreas Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xuhui Zhu
- 3 Huadong Medical Institute of Biotechniques, Nanjing, China
| | - Yifan Lian
- 1 The Second Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Xiaojun Yang
- 2 Pancreas Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhuyin Qian
- 2 Pancreas Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jin Zhu
- 3 Huadong Medical Institute of Biotechniques, Nanjing, China.,4 Department of Pathology, Key Laboratory of Antibody Technique of the Ministry of Health, Nanjing Medical University (NJMU), Nanjing, China
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Zhu M, Wang Y, Liu X, Wen X, Liang C, Tu J. LncRNAs act as prognostic biomarkers in gastric cancer: A systematic review and meta-analysis. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.flm.2017.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Abstract
Long noncoding RNAs (lncRNAs) are a relatively well-characterized class of noncoding RNA (ncRNA) molecules, involved in the regulation of various cell processes, including transcription, intracellular trafficking, and chromosome remodeling. Their deregulation has been associated with the development and progression of various cancer types, the fact which makes them suitable as biomarkers for cancer diagnosis and prognosis. In recent years, detection of cancer-associated lncRNAs in body fluids of cancer patients has proven itself as an especially valuable method to effectively diagnose cancer. Cancer diagnosis and prognosis employing circulating lncRNAs are preferential when compared to classical biopsies of tumor tissues, especially due to their noninvasiveness, and have great potential for routine usage in clinical practice. Thus, this review focuses on summarizing the perspectives of lncRNAs as biomarkers in cancer, based on evaluating their expression profiles determined in body fluids of cancer patients.
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Sun W, Yang Y, Xu C, Xie Y, Guo J. Roles of long noncoding RNAs in gastric cancer and their clinical applications. J Cancer Res Clin Oncol 2016; 142:2231-7. [PMID: 27246953 DOI: 10.1007/s00432-016-2183-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 05/19/2016] [Indexed: 02/07/2023]
Abstract
PURPOSE Gastric cancer ranks as the most common cancer in the world. However, the progresses of its diagnosis and treatment are still not satisfactory. The purpose of this study is to summarize the roles of lncRNAs associated with gastric cancer. METHODS We searched lncRNAs associated with gastric cancer in PubMed. RESULTS Long noncoding RNAs (lncRNAs), transcripts larger than 200 nucleotides, regulate gene expression at various levels. They are playing important roles in the occurrence and development of gastric cancer. They are involved in signaling pathways, crosstalk with microRNAs, and affecting metastasis by regulating epithelial-to-mesenchymal transition. By acting as oncogenes or tumor suppressors, lncRNAs contribute to gastric cancer occurrence and development. Several lncRNAs including HOTAIR, HULC, LINC00152, MALAT2, H19, GHET1, and GACAT3 have been demonstrated having oncogene activities, while other lncRNAs including LEIGC, GAS5, and FER1L4 have been thought as tumor suppressors. CONCLUSIONS Several lncRNAs from tissue, blood, and gastric juice have shown potential values in gastric cancer diagnosis or prognosis evaluation.
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Affiliation(s)
- Weiliang Sun
- Ningbo Yinzhou People's Hospital and the Affiliated Yinzhou Hospital, Ningbo University School of Medicine, 315040, Ningbo, China
| | - Yunben Yang
- Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Ningbo University School of Medicine, 315211, Ningbo, China
| | - Chunjing Xu
- Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Ningbo University School of Medicine, 315211, Ningbo, China
| | - Yi Xie
- Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Ningbo University School of Medicine, 315211, Ningbo, China
| | - Junming Guo
- Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Ningbo University School of Medicine, 315211, Ningbo, China.
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Hu L, Lv QL, Chen SH, Sun B, Qu Q, Cheng L, Guo Y, Zhou HH, Fan L. Up-Regulation of Long Non-Coding RNA AB073614 Predicts a Poor Prognosis in Patients with Glioma. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:433. [PMID: 27104549 PMCID: PMC4847095 DOI: 10.3390/ijerph13040433] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 04/08/2016] [Accepted: 04/12/2016] [Indexed: 12/17/2022]
Abstract
Dysregulated long noncoding RNAs (lncRNAs) have been found in human diseases, especially in cancer. Emerging evidence indicates that dysregulated lncRNAs are implicated in tumorigenesis and cancer progression. LncRNA AB073614 characterized as a new candidate lncRNA promotes the development of ovarian cancer. However, the role of lncRNA AB073614 in human gliomas remains unknown. The expression of AB073614 was detected in 65 glioma tissues and 13 normal brain tissues by qRT-PCR, showing that lncRNA AB073614 expression was significantly up-regulated in cancerous tissues compared with normal brain tissues (p < 0.001), and it was positively correlated with tumor grade (I-II grades vs. III-IV grades, p = 0.013) in glioma patients. Kaplan-Meier analysis demonstrated that increased AB073614 expression contributed to poor overall survival (HR (hazard ratio) = 1.952, 95%CI: 1.202-3.940, p = 0.0129). Further, univariate Cox regression analysis indicated that lncRNA AB073614 overexpression was an unfavorable prognostic factor in gliomas (HR = 1.997, 95%CI: 1.135-3.514, p = 0.016), regardless of the tumor grade (I-II grades vs. III-IV grades, HR = 1.902, 95%CI: 1.066-3.391, p = 0.029). Finally, after adjustment with age, sex, tumor grade and tumor location, multivariate Cox regression analysis suggested that both highly expressed lncRNA AB073614 (HR = 2.606, 95%CI: 1.408-4.824, p = 0.002) and high tumor grade (III-IV grades, HR = 2.720, 95%CI: 1.401-5.282, p = 0.003) could be considered independent poor prognostic indicators for glioma patients. In conclusion, our study suggested that increased lncRNA AB073614 expression may be identified as a poor prognostic biomarker in gliomas.
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Affiliation(s)
- Lei Hu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha 410078, China.
| | - Qiao-Li Lv
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha 410078, China.
| | - Shu-Hui Chen
- Department of Oncology, Changsha Central Hospital, Changsha 410006, China.
| | - Bao Sun
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha 410078, China.
| | - Qiang Qu
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Lin Cheng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510275, China.
| | - Ying Guo
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha 410078, China.
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha 410078, China.
| | - Lan Fan
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha 410078, China.
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Yang Z, Guo X, Li G, Shi Y, Li L. Long noncoding RNAs as potential biomarkers in gastric cancer: Opportunities and challenges. Cancer Lett 2015; 371:62-70. [PMID: 26577810 DOI: 10.1016/j.canlet.2015.11.011] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 11/05/2015] [Accepted: 11/05/2015] [Indexed: 02/06/2023]
Abstract
Gastric cancer (GC) is a major threat to human health, and its prognosis is poor due to the lack of appropriate biomarkers. LncRNAs are a group of non-protein-coding RNAs that regulate gene expression at the transcriptional or posttranscriptional level. LncRNAs play essential roles in GC initiation and development in the same way as oncogenes or tumour suppressor genes. Recent investigations have revealed that lncRNAs are often aberrantly expressed in GC; are involved in cell proliferation, apoptosis, migration and invasion; and correlate with the malignant phenotype of GC. LncRNAs, especially the lncRNAs present in the blood and gastric juice, show potential value as biomarkers for the diagnosis of GC or for determining disease prognosis. However, there are still many challenges to be faced before lncRNAs can be used in clinical applications. In this review, we summarise lncRNAs as the potential biomarkers for GC and the current challenges associated with the clinical application.
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Affiliation(s)
- Ziguo Yang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Xiaobo Guo
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China.
| | - Guimei Li
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Yulong Shi
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Leping Li
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
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