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Altieri F, Buono L, Lanzilli M, Mirabelli P, Cianflone A, Beneduce G, De Matteo A, Parasole R, Salvatore M, Smaldone G. LINC00958 as new diagnostic and prognostic biomarker of childhood acute lymphoblastic leukaemia of B cells. Front Oncol 2024; 14:1388154. [PMID: 38884090 PMCID: PMC11176504 DOI: 10.3389/fonc.2024.1388154] [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: 02/19/2024] [Accepted: 05/15/2024] [Indexed: 06/18/2024] Open
Abstract
Background Paediatric acute B-cell lymphoblastic leukaemia is the most common cancer of the paediatric age. Although the advancement of scientific and technological knowledge has ensured a huge step forward in the management of this disease, there are 15%-20% cases of recurrence leading to serious complications for the patient and sometimes even death. It is therefore necessary to identify new and increasingly personalised biomarkers capable of predicting the degree of risk of B-ALL in order to allow the correct management of paediatric leukaemia patients. Methods Starting from our previously published results, we validate the expression level of LINC00958 in a cohort of 33 B-ALL and 9 T-ALL childhood patients, using in-silico public datasets as support. Expression levels of LINC00958 in B-ALL patients stratified by risk (high risk vs. standard/medium risk) and who relapsed 3 years after the first leukaemia diagnosis were also evaluated. Results We identified the lncRNA LINC00958 as a biomarker of B-ALL, capable of discriminating B-ALL from T-ALL and healthy subjects. Furthermore, we associated LINC00958 expression levels with the disease risk classification (high risk and standard risk). Finally, we show that LINC00958 can be used as a predictor of relapses in patients who are usually stratified as standard risk and thus not always targeted for marrow transplantation. Conclusions Our results open the way to new diagnostic perspectives that can be directly used in clinical practice for a better management of B-ALL paediatric patients.
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Affiliation(s)
| | | | | | - Peppino Mirabelli
- Department of Paediatric Haemato-Oncology, Santobono-Pausilipon Children's Hospital, AORN, Naples, Italy
| | - Alessandra Cianflone
- Department of Paediatric Haemato-Oncology, Santobono-Pausilipon Children's Hospital, AORN, Naples, Italy
| | - Giuliana Beneduce
- Department of Paediatric Haemato-Oncology, Santobono-Pausilipon Children's Hospital, AORN, Naples, Italy
| | - Antonia De Matteo
- Department of Paediatric Haemato-Oncology, Santobono-Pausilipon Children's Hospital, AORN, Naples, Italy
| | - Rosanna Parasole
- Department of Paediatric Haemato-Oncology, Santobono-Pausilipon Children's Hospital, AORN, Naples, Italy
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Wang J, Zhao G, Zhao Y, Zhao Z, Yang S, Zhou A, Li P, Zhang S. N 6-methylation in the development, diagnosis, and treatment of gastric cancer. J Transl Int Med 2024; 12:5-21. [PMID: 38525439 PMCID: PMC10956730 DOI: 10.2478/jtim-2023-0103] [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] [Indexed: 03/26/2024] Open
Abstract
Gastric cancer (GC) ranks third among cancers in terms of mortality rate worldwide. A clear understanding of the mechanisms underlying the genesis and progression of GC will contribute to clinical decision making. N6-methyladenosine (m6A) is the most abundant among diverse mRNA modification types and regulates multiple facets of RNA metabolism. In recent years, emerging studies have shown that m6A modifications are involved in gastric carcinoma tumorigenesis and progression and can potentially be valuable new prospects for diagnosis and prognosis. This article reviews the recent progress regarding m6A in GC.
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Affiliation(s)
- Jiaxin Wang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Guiping Zhao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Yan Zhao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Zheng Zhao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Shuyue Yang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Anni Zhou
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Peng Li
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Shutian Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
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Jin Q, Qu H, Quan C. New insights into the regulation of METTL3 and its role in tumors. Cell Commun Signal 2023; 21:334. [PMID: 37996892 PMCID: PMC10732098 DOI: 10.1186/s12964-023-01360-5] [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: 08/21/2023] [Accepted: 10/20/2023] [Indexed: 11/25/2023] Open
Abstract
As one of the most abundant epigenetic modifications in RNA, N6-methyladenosine (m6A) affects RNA transcription, splicing, stability, and posttranscriptional translation. Methyltransferase-like 3 (METTL3), a key component of the m6A methyltransferase complex, dynamically regulates target genes expression through m6A modification. METTL3 has been found to play a critical role in tumorigenesis, tumor growth, metastasis, metabolic reprogramming, immune cell infiltration, and tumor drug resistance. As a result, the development of targeted drugs against METTL3 is becoming increasingly popular. This review systematically summarizes the factors that regulate METTL3 expression and explores the specific mechanisms by which METTL3 affects multiple tumor biological behaviors. We aim to provide fundamental support for tumor diagnosis and treatment, at the same time, to offer new ideas for the development of tumor-targeting drugs.
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Affiliation(s)
- Qiu Jin
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xinmin Avenue, Changchun, Jilin, 130021, People's Republic of China
| | - Huinan Qu
- Department of Histology and Embryology, College of Basic Medical Sciences, Jilin University, 126 Xinmin Avenue, Changchun, Jilin, 130021, People's Republic of China.
| | - Chengshi Quan
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xinmin Avenue, Changchun, Jilin, 130021, People's Republic of China.
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Wang M, Liu Z, Fang X, Cong X, Hu Y. The emerging role of m 6A modification of non-coding RNA in gastrointestinal cancers: a comprehensive review. Front Cell Dev Biol 2023; 11:1264552. [PMID: 37965577 PMCID: PMC10642577 DOI: 10.3389/fcell.2023.1264552] [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: 07/21/2023] [Accepted: 10/16/2023] [Indexed: 11/16/2023] Open
Abstract
Gastrointestinal (GI) cancer is a series of malignant tumors with a high incidence globally. Although approaches for tumor diagnosis and therapy have advanced substantially, the mechanisms underlying the occurrence and progression of GI cancer are still unclear. Increasing evidence supports an important role for N6-methyladenosine (m6A) modification in many biological processes, including cancer-related processes via splicing, export, degradation, and translation of mRNAs. Under distinct cancer contexts, m6A regulators have different expression patterns and can regulate or be regulated by mRNAs and non-coding RNAs, especially long non-coding RNAs. The roles of m6A in cancer development have attracted increasing attention in epigenetics research. In this review, we synthesize progress in our understanding of m6A and its roles in GI cancer, especially esophageal, gastric, and colorectal cancers. Furthermore, we clarify the mechanism by which m6A contributes to GI cancer, providing a basis for the development of diagnostic, prognostic, and therapeutic targets.
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Affiliation(s)
- Meiqi Wang
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Zhuo Liu
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xuedong Fang
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xianling Cong
- Department of Biobank, the China-Japan Union Hospital of Jilin University, Changchun, China
- Department of Dermatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yue Hu
- Department of Biobank, the China-Japan Union Hospital of Jilin University, Changchun, China
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Meng Q, Schatten H, Zhou Q, Chen J. Crosstalk between m6A and coding/non-coding RNA in cancer and detection methods of m6A modification residues. Aging (Albany NY) 2023; 15:6577-6619. [PMID: 37437245 PMCID: PMC10373953 DOI: 10.18632/aging.204836] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/15/2023] [Indexed: 07/14/2023]
Abstract
N6-methyladenosine (m6A) is one of the most common and well-known internal RNA modifications that occur on mRNAs or ncRNAs. It affects various aspects of RNA metabolism, including splicing, stability, translocation, and translation. An abundance of evidence demonstrates that m6A plays a crucial role in various pathological and biological processes, especially in tumorigenesis and tumor progression. In this article, we introduce the potential functions of m6A regulators, including "writers" that install m6A marks, "erasers" that demethylate m6A, and "readers" that determine the fate of m6A-modified targets. We have conducted a review on the molecular functions of m6A, focusing on both coding and noncoding RNAs. Additionally, we have compiled an overview of the effects noncoding RNAs have on m6A regulators and explored the dual roles of m6A in the development and advancement of cancer. Our review also includes a detailed summary of the most advanced databases for m6A, state-of-the-art experimental and sequencing detection methods, and machine learning-based computational predictors for identifying m6A sites.
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Affiliation(s)
- Qingren Meng
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated with the Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, USA
| | - Qian Zhou
- International Cancer Center, Shenzhen University Medical School, Shenzhen, Guangdong Province, China
| | - Jun Chen
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated with the Southern University of Science and Technology, Shenzhen, Guangdong Province, China
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Feng H, Yuan X, Wu S, Yuan Y, Cui L, Lin D, Peng X, Liu X, Wang F. Effects of writers, erasers and readers within miRNA-related m6A modification in cancers. Cell Prolif 2023; 56:e13340. [PMID: 36162823 DOI: 10.1111/cpr.13340] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/17/2022] [Accepted: 09/07/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND As one of the most abundant post-transcriptional mRNA modifications, N6-methyladenosine (m6A) has attracted extensive attention from scientists. Emerging evidence indicates that m6A modification plays a significant role in cancer-related signalling pathways. Existing research demonstrates that m6A modifications were also identified in miRNAs and contribute to cancer-related signalling pathways. METHODS A literature retrieval has been performed to collect m6A-miRNA-related original articles published in recent years. Later, a systematic analysis has been conducted to abstract and classify the relationships between m6A modification and miRNAs, and their contributions to tumorigenesis and cancer development. RESULTS Accumulating literature provides important insights into multiple relationships between m6A modifications and miRNAs. Mechanically, m6A writer and eraser alter pri-miRNAs m6A levels, and m6A readers could dually modulate pri-miRNAs processing and pri-miRNAs degradation. It is also been demonstrated that miRNAs impair m6A regulators' translation to influence m6A medication function in return. Aberrant expressions of m6A regulators and miRNAs could dysregulate proliferative, apoptosis, cell adhesion-related, and malignant transformation signalling pathways, and contribute to tumour occurrence and development. CONCLUSION This review summarizes the interrelationship between m6A modification and miRNAs; highlights the combined effects of each type of m6A regulator and miRNAs in cancers. These findings enhance our understanding of m6A-miRNAs' multiple interactions and significant modulatory role in tumorigenesis and progression.
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Affiliation(s)
- Huiru Feng
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Baiyun District, Guangzhou, People's Republic of China
| | - Xiaofei Yuan
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Baiyun District, Guangzhou, People's Republic of China
| | - Shuting Wu
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Baiyun District, Guangzhou, People's Republic of China
| | - Yue Yuan
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Baiyun District, Guangzhou, People's Republic of China
| | - Linchong Cui
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Baiyun District, Guangzhou, People's Republic of China
| | - Danfan Lin
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Baiyun District, Guangzhou, People's Republic of China
| | - Xiaohong Peng
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Baiyun District, Guangzhou, People's Republic of China
| | - Xiong Liu
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Baiyun District, Guangzhou, People's Republic of China
| | - Fan Wang
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Baiyun District, Guangzhou, People's Republic of China
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Cao X, Song Y, Huang LL, Tian YJ, Wang XL, Hua LY. m 6A transferase METTL3 regulates endothelial-mesenchymal transition in diabetic retinopathy via lncRNA SNHG7/KHSRP/MKL1 axis. Genomics 2022; 114:110498. [PMID: 36174881 DOI: 10.1016/j.ygeno.2022.110498] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 08/24/2022] [Accepted: 09/25/2022] [Indexed: 01/14/2023]
Abstract
Diabetic retinopathy is one of the microvascular complications in diabetic patients and the leading cause of blindness worldwide. The levels of METTL3, lncRNA SNHG7, KHSRP, MKL1, endothelial and mesenchymal markers were determined by RT-qPCR or western blot assays in vitro and in vivo. H&E staining was used to observe the retinal structure in a mouse model of DR. The expression levels of METTL3 and SNHG7 were significantly downregulated in DR patients, DR mice and high glucose-induced HRMECs cells. Notably, METTL3 installed the m6A modification and enhanced the stability of SNHG7. Besides, METTL3 inhibited HRMECs EndoMT by promoting the expression of SNHG7. Additionally, SNHG7 was found to weaken MKL1 mRNA stability by binding to the RNA-binding protein KHSRP. Furthermore, we verified that METTL3 regulated EndoMT in DR through the SNHG7/MKL1 axis. We conclude that METTL3 regulates endothelial-mesenchymal transition in DR via the SNHG7/KHSRP/MKL1 axis, providing a new target for DR treatment.
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Affiliation(s)
- Xin Cao
- Department of Ophthalmology, Affiliated Hospital 2 of Nantong University, the first people's hospital of Nantong, Nantong 226000, Jiangsu Province, PR China.
| | - Yu Song
- Department of Ophthalmology, Affiliated Hospital 2 of Nantong University, the first people's hospital of Nantong, Nantong 226000, Jiangsu Province, PR China
| | - Li-Li Huang
- Department of Ophthalmology, Affiliated Hospital 2 of Nantong University, the first people's hospital of Nantong, Nantong 226000, Jiangsu Province, PR China
| | - Ya-Jing Tian
- Department of Ophthalmology, Affiliated Hospital 2 of Nantong University, the first people's hospital of Nantong, Nantong 226000, Jiangsu Province, PR China
| | - Xiao-Le Wang
- Department of Ophthalmology, Affiliated Hospital 2 of Nantong University, the first people's hospital of Nantong, Nantong 226000, Jiangsu Province, PR China
| | - Ling-Yan Hua
- Department of Ophthalmology, Affiliated Hospital 2 of Nantong University, the first people's hospital of Nantong, Nantong 226000, Jiangsu Province, PR China
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Rajput R, Periwal N, Mukherjee C, Verma P, Sharma J, Arora P, Kaur B, Sood V. Novel insights into host responses to Japanese Encephalitis Virus infection: Reanalysis of public transcriptome and microRNAome datasets. Virus Res 2022; 320:198887. [PMID: 35953004 DOI: 10.1016/j.virusres.2022.198887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/07/2022] [Accepted: 08/08/2022] [Indexed: 10/15/2022]
Abstract
PURPOSE Japanese encephalitis (JE), caused by the Japanese encephalitis virus (JEV), is the principal cause of viral encephalitis in South-East Asian and Western Pacific countries; accounting for 68,000 cases, and up to 20,400 fatalities, annually across the world. Despite being a high-risk condition, there is no specific treatment for JE. Given rapid additions in genomics databases and the power of data reanalysis in addressing critical medical questions, the present study was designed to identify novel host factors that might have potential roles in JEV infection. METHODS We extracted microarray and RNA-Seq data sets from NCBI-GEO and compared mock and JEV-infected samples. Raw data from all the studies were re-analyzed to identify host factors associated with JEV replication. RESULTS We identified several coding and non-coding host factors that had no prior known role in viral infections. Of these, the coding transcripts: Myosin Heavy Chain 10 (MYH10), Progestin and AdipoQ Receptor Family Member 8 (PAQR8), and the microRNAs: hsa-miR-193b-5p, hsa-miR-3714 and hsa-miR-513a-5p were found to be novel host factors deregulated during JEV infection. MYH10 encodes a conventional non-muscle myosin, and mutations in MYH10 have been shown to cause neurological defects. PAQR8 has been associated with epilepsy, which exhibits symptoms similar to JEV infection. JE is a neuro-degenerative disease, and the known involvement of MYH10 and PAQR8 in neurological disorders strongly indicates potential roles of these host factors in JEV infection. Additionally, we observed that MYH10 and PAQR8 had a significant negative correlation with Activating transcription factor 3 (ATF3), which is a previously validated modulator of JEV infection. ATF3 is a transcription factor that binds to the promotors of genes encoding other transcription factors or interferon-stimulated genes and negatively regulates host antiviral responses during JE. CONCLUSION Our findings demonstrate the significance of data reanalysis in the identification of novel host factors that may become targets for diagnosis/ therapy against viral diseases of major concern, such as, JE. The deregulated coding and non-coding transcripts identified in this study need further experimental analysis for validation.
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Affiliation(s)
- Roopali Rajput
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Neha Periwal
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | | | - Priyanshu Verma
- Department of Zoology, Hansraj College, University of Delhi, North Campus, Delhi 110007, India
| | - Jitender Sharma
- Department of Biochemistry, Govind Ballabh Pant Institute of Postgraduate Medical Education and Research (GIPMER), New Delhi 110002, India
| | - Pooja Arora
- Department of Zoology, Hansraj College, University of Delhi, North Campus, Delhi 110007, India
| | - Baljeet Kaur
- Department of Computer Sciences, Hansraj College, University of Delhi, North Campus, Delhi 110007, India
| | - Vikas Sood
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India.
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Fang Z, Mei W, Qu C, Lu J, Shang L, Cao F, Li F. Role of m6A writers, erasers and readers in cancer. Exp Hematol Oncol 2022; 11:45. [PMID: 35945641 PMCID: PMC9361621 DOI: 10.1186/s40164-022-00298-7] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 08/04/2022] [Indexed: 02/06/2023] Open
Abstract
The N(6)-methyladenosine (m6A) modification is the most pervasive modification of human RNAs. In recent years, an increasing number of studies have suggested that m6A likely plays important roles in cancers. Many studies have demonstrated that m6A is involved in the biological functions of cancer cells, such as proliferation, invasion, metastasis, and drug resistance. In addition, m6A is closely related to the prognosis of cancer patients. In this review, we highlight recent advances in understanding the function of m6A in various cancers. We emphasize the importance of m6A to cancer progression and look forward to describe future research directions.
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Affiliation(s)
- Zhen Fang
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wentong Mei
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Chang Qu
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jiongdi Lu
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Liang Shang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
| | - Feng Cao
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
| | - Fei Li
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
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Jiang L, Yang L, Dai Y, Yang G, Pan S. Expression of POT1-AS1 in GC Tissue, Its Effect on Biological Behavior of Gastric Cancer, and Its Significance on Prognosis of Gastric Cancer. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:6021994. [PMID: 35936358 PMCID: PMC9355756 DOI: 10.1155/2022/6021994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/20/2022] [Accepted: 06/24/2022] [Indexed: 11/30/2022]
Abstract
Objective To study the correlation between gold in GC and biological indicators of gastric cancer (GC) and its effect on prognosis and correlation of POT1-AS1 with GC cellular growth, and to explore its impact in the processes of GC, to supply histological basis for medical treatment of GC. Methods From September 2019 to December 2021, 80 pairs of GAC specimens and healthy para-carcinoma tissue were immediately stored in paraformaldehyde solution. POT1-AS1 levels in 77 postoperative patients with GC were detected by immunohistochemical method. The correlation of the above indexes and the relationship between the above indexes and the biological behavior and prognosis of GC were analyzed. Results POT1-AS1 was strongly displayed in GAC specimens, and the difference between groups was statistically significant (P < 0.05). After sh-POT1-AS1 plasmid transfection, the relative expression of POT1-AS1 mRNA in SGC-7901 cells was remarkably lower compared to nontransfection group, and the difference between groups was statistically significant (P < 0.05). After POT1-AS1 knockdown, the SGC-7901 proliferation ability and the number of clones of SGC-7901 decreased remarkably. The relative level of cyclin D1 and cyclin-dependent kinase 4 (CDK4) in SGC-7901 reduced remarkably, while relative expression of cyclin-dependent kinase inhibitor 1A (CDKI1A) increased remarkably, and the difference between groups was statistically significant (P < 0.05). The positive expression of POT1-AS1 was found in GC and stromal cells. TIMP-1 in tumor stromal cells was related to the maximum diameter of tumor (P = 0.027), invasion depth (P = 0.001), lymph node metastasis (P = 0.006), and clinical stages (P = 0.006). TIMP-1 had an effect on the prognosis, while the strong positive group had a poor prognosis. The expression of TIMP-1 in GC cells was not related to clinical biological behavior and prognosis of GC. The VEGF level in GC was correlated to tumor maximum diameter (P < 0.05), invasive depth (P < 0.05), and lymph node metastasis (P < 0.05) that was linked to clinical phases, and the difference between groups was statistically significant (P < 0.05), which was positively correlated with Ki67-LI; the correlation coefficient was 0.254 and P = 0.026, which was not related to the positive expression of TIMP-1 in GC cells and stromal cells. VECF has an effect on the prognosis, and the outcomes of the positive group are worse. Conclusion The correlation between TIMP-1 of GASTRIC cancer mesenchymal cells of POT1-AS1 and VEGF and Ki-67-Li suggests that TIMP-1 produced by mesenchymal cells can facilitate tumor progression and lead to poor prognosis by promoting tumor cell proliferation. VEGF can strengthen tumor angiogenesis and then promote tumor cell proliferation, which has an adverse effect on the prognosis. Ki-67-LI is correlated to the medical biological behavior and prognosis of the tumor, reflecting the malignant process of the tumor.
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Affiliation(s)
- Li Jiang
- Department of Pathology, Liyang People's Hospital, 213300, China
| | - Lie Yang
- Department of Pathology, Liyang People's Hospital, 213300, China
| | - Yun Dai
- Department of Pathology, Liyang People's Hospital, 213300, China
| | - Guangming Yang
- Department of Pathology, Liyang People's Hospital, 213300, China
| | - Shuyin Pan
- Department of Pathology, Liyang People's Hospital, 213300, China
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Yao L, Man CF, He R, He L, Huang JB, Xiang SY, Dai Z, Wang XY, Fan Y. The Interaction Between N 6-Methyladenosine Modification and Non-Coding RNAs in Gastrointestinal Tract Cancers. Front Oncol 2022; 11:784127. [PMID: 35070987 PMCID: PMC8776638 DOI: 10.3389/fonc.2021.784127] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 12/15/2021] [Indexed: 12/13/2022] Open
Abstract
N6-methyladenosine (m6A) is the most common epigenetic modification of eukaryotic RNA, which can participate in the growth and development of the body and a variety of physiological and disease processes by affecting the splicing, processing, localization, transport, translation, and degradation of RNA. Increasing evidence shows that non-coding RNAs, particularly microRNA, long non-coding RNA, and circular RNA, can also regulate the RNA m6A modification process by affecting the expression of m6A-related enzymes. The interaction between m6A modification and non-coding RNAs provides a new perspective for the exploration of the potential mechanism of tumor genesis and development. In this review, we summarize the potential mechanisms and effects of m6A and non-coding RNAs in gastrointestinal tract cancers.
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Affiliation(s)
- Lin Yao
- Cancer Institute, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Chang-Feng Man
- Cancer Institute, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Rong He
- Cancer Institute, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Lian He
- Cancer Institute, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Jia-Bin Huang
- Cancer Institute, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Shou-Yan Xiang
- Cancer Institute, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Zhe Dai
- Cancer Institute, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Xiao-Yan Wang
- Digestive Department, The Affiliated Suqian first People's Hospital of Nanjing Medical University, Suqian, China
| | - Yu Fan
- Cancer Institute, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
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Wen Z, Li Y, Tan B, Chen Z, Zhao Q, Tan M, Zhao Y, Xia Y, FanΔ L. LINC01088 regulates the miR-95/LATS2 pathway through the ceRNA mechanism to inhibit the growth, invasion and migration of gastric cancer cells. Int J Immunopathol Pharmacol 2022; 36:3946320221108271. [PMID: 35728587 PMCID: PMC9228637 DOI: 10.1177/03946320221108271] [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] [Indexed: 11/22/2022] Open
Abstract
Background: In gastric cancer, a malignant condition with a dismal prognosis, long non-coding RNAs (LncRNAs) play a significant regulatory role. They often compete with microRNAs through the ceRNA mechanism to affect the expression of target mRNA. However, the specific clinical value and mechanism of action of LncRNA in gastric cancer are still unclear. Methods: This study detected the expression and clinical value of LINC01088 in gastric cancer tissues. Furthermore, the biological functions of LINC01088 and the regulation mechanism of the miR-95/LATS2 pathway were explored.Results: LINC01088 and LATS2 mRNA expression decreased, and miR-95 increased in gastric cancer tissues. LINC01088 has an excellent positive correlation with LATS2 mRNA, which may be a ceRNA pair; LINC01088 has binding sites with miR-95. Gene interference tests on gastric cancer cell lines revealed that LINC01088 could prevent gastric cancer cells from proliferating, invading, and migrating. The function of LINC01088 is achieved by regulating the miR-95/LATS2 pathway through the ceRNA mechanism.Conclusion: The results of this study show that LINC01088 expression is significantly reduced in gastric cancer tissues and cell lines. LINC01088 inhibits gastric cancer cells’ proliferation, invasion, and migration by regulating the miR-95/LATS2 pathway via the ceRNA mechanism.
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Affiliation(s)
- Zhuan Wen
- Quality control office, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Yong Li
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Bibo Tan
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Zihao Chen
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Qun Zhao
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Ming Tan
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Yijie Zhao
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Yuxiang Xia
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Liqiao FanΔ
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
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Wang J, Zhang X, Zhang J, Chen S, Zhu J, Wang X. Long noncoding RNA CRART16 confers 5-FU resistance in colorectal cancer cells by sponging miR-193b-5p. Cancer Cell Int 2021; 21:638. [PMID: 34844630 PMCID: PMC8628471 DOI: 10.1186/s12935-021-02353-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/19/2021] [Indexed: 12/12/2022] Open
Abstract
Background The emergence of chemoresistance to 5-fluorouracil (5-FU)-based chemotherapy is the main cause of treatment failure in advanced and metastatic colorectal cancer (CRC) patients. Long noncoding RNAs (lncRNAs) have been reported to be involved in 5-FU resistance. Previously, we first detected that lncRNA cetuximab resistance-associated RNA transcript 16 (CRART16) could contribute to cetuximab resistance by upregulating V-Erb-B2 erythroblastic leukemia viral oncogene homologue 3 (ERBB3) expression by sponging miR-371a-5p in CRC cells. The current study aimed to explore the role of CRART16 in acquired 5-FU resistance in CRC cells and its possible mechanism. Methods Quantitative real-time PCR (RT-qPCR) was used to measure the expression levels of CRART16 in a 5-FU-resistant CRC cell subline (SW620/5-FU) and the parent cell line. Lentivirus transduction was performed to establish SW620 and Caco-2 cells stably overexpressing CRART16. Cell Counting Kit-8 (CCK-8) assays and colony formation assays were applied to measure cell chemosensitivity to 5-FU. Flow cytometric and immunofluorescence staining were adopted to assess cell apoptosis induced by 5-FU. The dual-luciferase reporter assay was used to validate the direct interactions between CRART16 and miR-193b-5p and between miR-193b-5p and high-mobility group AT-hook-2 (HMGA2). The expression levels of HMGA2, apoptosis-associated proteins and p-ERK were examined by western blotting. The statistical differences within any two groups were used Student’s t test. Results CRART16 was upregulated in SW620/5-FU cells. Overexpression of CRART16 reduced the sensitivity of CRC cells to 5-FU by attenuating apoptosis. In addition, CRART16 promoted 5-FU resistance by suppressing the expression of miR-193b-5p. Furthermore, CRART16 modulated the expression of HMGA2 by inhibiting miR-193b-5p and activated the MAPK signaling pathway. Conclusions CRART16 confers 5-FU resistance in CRC cells through the CRART16/miR-193b-5p/HMGA2/MAPK pathway.
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Affiliation(s)
- Jingui Wang
- Department of General Surgery, Peking University First Hospital, NO. 8 Xishiku Street, Xicheng, Beijing, 100034, People's Republic of China
| | - Xiaoqian Zhang
- Department of General Surgery, Peking University First Hospital, NO. 8 Xishiku Street, Xicheng, Beijing, 100034, People's Republic of China.,Department of Colorectal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences, No. 17, Panjiayuan Nanli, Chaoyang, Beijing, 100021, People's Republic of China
| | - Junling Zhang
- Department of General Surgery, Peking University First Hospital, NO. 8 Xishiku Street, Xicheng, Beijing, 100034, People's Republic of China
| | - Shangwen Chen
- Department of General Surgery, Peking University First Hospital, NO. 8 Xishiku Street, Xicheng, Beijing, 100034, People's Republic of China
| | - Jing Zhu
- Department of General Surgery, Peking University First Hospital, NO. 8 Xishiku Street, Xicheng, Beijing, 100034, People's Republic of China
| | - Xin Wang
- Department of General Surgery, Peking University First Hospital, NO. 8 Xishiku Street, Xicheng, Beijing, 100034, People's Republic of China.
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Xiang B, Li Y, Li J, Li J, Jiang H, Zhang Q. MiR-19 3b regulated the formation of coat colors by targeting WNT10A and GNAI2 in Cashmere goats. Anim Biotechnol 2021:1-9. [PMID: 34747678 DOI: 10.1080/10495398.2021.1998089] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
MiRNAs as a series of small noncoding RNAs that play a crucial part in regulating coat color and hair follicle development. In the previous Solexa sequencing experiments, there were many miRNAs expressed differentially in alpacas with different coat color, including miR-193b.But the mechanism of miR-193b in mammalian pigmentation is still unknown. In this study, bioinformatics analysis showed that WNT10A and GNAI2 might be the target genes of miR-193b. qRT-PCR showed the expression of miR-193b in white Cashmere goats' skins was obviously lower than that in browns, and the expression of WNT10A and GNAI2 were similar with miR-193b. The protein levels of WNT10A and GNAI2 indicated the same findings. Furthermore, the expression of WNT10A and GNAI2 in keratinocytes were analyzed from mRNA and protein levels, the results manifested that the group of overexpression of miR-193b in HaCaT cells increased the expressions of target genes, and miR-193b inhibition group reduced expressions. Luciferase report assays confirmed that the targeting relationship between miR-193b and target genes (WNT10A and GNAI2), the results showed that miR-193b was positively correlated with target genes. These experimental data showed that miR-193b might participate in adjustment of coat color in skin tissue of Cashmere goat by targeting WNT10A and GNAI2.
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Affiliation(s)
- Ba Xiang
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yumei Li
- College of Animal Science, Jilin University, Changchun, China
| | - Jianping Li
- College of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, China
| | - Jianyu Li
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - HuaiZhi Jiang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - QiaoLing Zhang
- College of Veterinary Medicine, Jilin University, Changchun, China
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Zhang Z, Wei W, Wang H, Dong J. N6-Methyladenosine-Sculpted Regulatory Landscape of Noncoding RNA. Front Oncol 2021; 11:743990. [PMID: 34722298 PMCID: PMC8554331 DOI: 10.3389/fonc.2021.743990] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/27/2021] [Indexed: 12/18/2022] Open
Abstract
The exploration of dynamic N6-methyladenosine (m6A) RNA modification in mammalian cells has attracted great interest in recent years. M6A modification plays pivotal roles in multiple biological and pathological processes, including cellular reprogramming, fertility, senescence, and tumorigenesis. In comparison with growing research unraveling the effects of m6A modifications on eukaryotic messenger RNAs, reports of the association between noncoding RNAs and m6A modification are relatively limited. Noncoding RNAs that undergo m6A modification are capable of regulating gene expression and also play an important role in epigenetic regulation. Moreover, the homeostasis of m6A modification can be affected by noncoding RNAs across a broad spectrum of biological activities. Importantly, fine-tuning and interaction between these processes are responsible for cell development, as well as the initiation and progression of the disease. Hence, in this review, we provide an account of recent developments, revealing biological interactions between noncoding RNAs and m6A modification, and discuss the potential clinical applications of interfering with m6A modification.
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Affiliation(s)
- Zhongyuan Zhang
- Department of Radiology, The First Affiliated Hospital of the University of Science and Technology of China, Anhui Provincial Cancer Hospital, Hefei, China
| | - Wei Wei
- Department of Laboratory Medicine, Division of Life Sciences and Medicine, The First Affiliated Hospital of the University of Science and Technology of China, Hefei, China
| | - Hao Wang
- Department of Laboratory Medicine, Division of Life Sciences and Medicine, The First Affiliated Hospital of the University of Science and Technology of China, Hefei, China
| | - Jiangning Dong
- Department of Radiology, The First Affiliated Hospital of the University of Science and Technology of China, Anhui Provincial Cancer Hospital, Hefei, China
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