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Sánchez-Marín D, Silva-Cázares MB, Porras-Reyes FI, García-Román R, Campos-Parra AD. Breaking paradigms: Long non-coding RNAs forming gene fusions with potential implications in cancer. Genes Dis 2024; 11:101136. [PMID: 38292185 PMCID: PMC10825296 DOI: 10.1016/j.gendis.2023.101136] [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: 03/28/2023] [Revised: 08/16/2023] [Accepted: 09/10/2023] [Indexed: 02/01/2024] Open
Abstract
Long non-coding RNAs (lncRNAs) are non-coding RNAs longer than 200 nucleotides with dynamic regulatory functions. They interact with a wide range of molecules such as DNA, RNA, and proteins to modulate diverse cellular functions through several mechanisms and, if deregulated, they can lead to cancer development and progression. Recently, it has been described that lncRNAs are susceptible to form gene fusions with mRNAs or other lncRNAs, breaking the paradigm of gene fusions consisting mainly of protein-coding genes. However, their biological significance in the tumor phenotype is still uncertain. Therefore, their recent identification opens a new line of research to study their biological role in tumorigenesis, and their potential as biomarkers with clinical relevance or as therapeutic targets. The present study aimed to review the lncRNA fusions identified so far and to know which of them have been associated with a potential function. We address the current challenges to deepen their study as well as the reasons why they represent a future therapeutic window in cancer.
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Affiliation(s)
- David Sánchez-Marín
- Posgrado en Ciencias Biológicas, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, C.P. 04360, México
| | - Macrina Beatriz Silva-Cázares
- Unidad Académica Multidisciplinaria Región Altiplano, Universidad Autónoma de San Luis Potosí (UASLP), Carretera a Cedral Km 5+600, Ejido San José de la Trojes, Matehuala, San Luis Potosí, C.P. 78760, México
| | - Fany Iris Porras-Reyes
- Servicio de Anatomía Patológica, Instituto Nacional de Cancerología (INCan), Niño Jesús, Tlalpan, Ciudad de México, C.P. 14080, México
| | - Rebeca García-Román
- Instituto de Salud Pública, Universidad Veracruzana (UV), Av. Dr Luis, Dr. Castelazo Ayala s/n, Col. Industrial Ánimas, Xalapa, Veracruz, C.P. 91190, México
| | - Alma D. Campos-Parra
- Instituto de Salud Pública, Universidad Veracruzana (UV), Av. Dr Luis, Dr. Castelazo Ayala s/n, Col. Industrial Ánimas, Xalapa, Veracruz, C.P. 91190, México
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Shadkam R, Saadat P, Azadmehr A, Chehrazi M, Daraei A. Key Non-coding Variants in Three Neuroapoptosis and Neuroinflammation-Related LncRNAs Are Protectively Associated with Susceptibility to Parkinson's Disease and Some of Its Clinical Features. Mol Neurobiol 2024; 61:2854-2865. [PMID: 37946005 DOI: 10.1007/s12035-023-03708-x] [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: 08/30/2023] [Accepted: 10/10/2023] [Indexed: 11/12/2023]
Abstract
Research findings show that genetic susceptibility to sporadic Parkinson's disease (PD), a common neurodegenerative disorder, is determined through gene variation of loci involved in its development and pathogenesis. A growing body of strong evidence has revealed that dysfunction of long non-coding RNAs (lncRNAs) plays key roles in the pathogenesis and progression of PD through impairing neuronal signaling pathways, but little is known about the relationship between their variants and PD susceptibility. In this research, we intended to study the relationship between functional SNPs rs12826786C>T, rs3200401C>T, and rs6931097G>A in the key lncRNAs stimulating neuroapoptosis and neuroinflammation in PD, including HOTAIR, MALAT1, and lincRNA-P21, respectively, with susceptibility to PD as well as its clinical symptoms.The population of this study consisted of 240 individuals, including 120 controls and 120 cases, and the sample taken from them was peripheral blood. Genotyping of the target SNPs was done using PCR-RFLP. We found that the healthy individuals carry more T allele of MALAT1-rs3200401C>T compared to the patients (P= 0.019). Furthermore, it was observed that in the dominant genetic model, subjects with genotypes carrying the T allele have a lower risk of PD (OR= 0.530; CI= 0.296-0.950; P= 0.033). Regarding the lincRNA-P21-rs6931097G>A, we observed a significant protective relationship between its GA (OR= 0.144; CI= 0.030-0.680; P= 0.014) and AA (OR= 0.195; CI= 00.047-0.799; P= 0.023) genotypes with the manifestation of tremor and bradykinesia symptoms, respectively. Furthermore, the findings indicated that the minor TT genotype of HOTAIR-rs12826786C>T was significantly associated with a reduced risk of bradykinesia symptoms (OR= 0.147; CI= 0.039-0.555; P= 0.005). Collectively, these findings suggest that MALAT1-rs3200401C>T may be an important lncRNA SNP against the development of PD, while the other two SNPs show protective effects on the clinical manifestations of PD in a way that lincRNA-P21-rs6931097G>A has a protective effect against the occurrence of tremor and bradykinesia symptoms in PD patients, and HOTAIR -rs12826786C>T indicates a protective effect against the display of bradykinesia feature. Therefore, they can have valuable potential as biomarkers for clinical evaluations of this disease.
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Affiliation(s)
- Roshanak Shadkam
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
- Department of Medical Genetics, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Payam Saadat
- Mobility Impairment Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Abbas Azadmehr
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Chehrazi
- Department of Biostatistics and Epidemiology, School of Public Health, Babol University of Medical Sciences, Babol, Iran
| | - Abdolreza Daraei
- Department of Medical Genetics, School of Medicine, Babol University of Medical Sciences, Babol, Iran.
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
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Jafari S, Motedayyen H, Javadi P, Jamali K, Moradi Hasan-Abad A, Atapour A, Sarab GA. The roles of lncRNAs and miRNAs in pancreatic cancer: a focus on cancer development and progression and their roles as potential biomarkers. Front Oncol 2024; 14:1355064. [PMID: 38559560 PMCID: PMC10978783 DOI: 10.3389/fonc.2024.1355064] [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: 12/13/2023] [Accepted: 02/27/2024] [Indexed: 04/04/2024] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is among the most penetrative malignancies affecting humans, with mounting incidence prevalence worldwide. This cancer is usually not diagnosed in the early stages. There is also no effective therapy against PDAC, and most patients have chemo-resistance. The combination of these factors causes PDAC to have a poor prognosis, and often patients do not live longer than six months. Because of the failure of conventional therapies, the identification of key biomarkers is crucial in the early diagnosis, treatment, and prognosis of pancreatic cancer. 65% of the human genome encodes ncRNAs. There are different types of ncRNAs that are classified based on their sequence lengths and functions. They play a vital role in replication, transcription, translation, and epigenetic regulation. They also participate in some cellular processes, such as proliferation, differentiation, metabolism, and apoptosis. The roles of ncRNAs as tumor suppressors or oncogenes in the growth of tumors in a variety of tissues, including the pancreas, have been demonstrated in several studies. This study discusses the key roles of some lncRNAs and miRNAs in the growth and advancement of pancreatic carcinoma. Because they are involved not only in the premature identification, chemo-resistance and prognostication, also their roles as potential biomarkers for better management of PDAC patients.
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Affiliation(s)
- Somayeh Jafari
- Department of Molecular Medicine, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Hossein Motedayyen
- Autoimmune Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Parisa Javadi
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kazem Jamali
- Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Trauma Research Center, Shahid Rajaee (Emtiaz) Trauma Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amin Moradi Hasan-Abad
- Autoimmune Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Amir Atapour
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gholamreza Anani Sarab
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
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An X, Liu Y. HOTAIR in solid tumors: Emerging mechanisms and clinical strategies. Biomed Pharmacother 2022; 154:113594. [DOI: 10.1016/j.biopha.2022.113594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/02/2022] Open
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Gao X, Li X, Zhang S, Wang X. The Association of MEG3 Gene rs7158663 Polymorphism With Cancer Susceptibility. Front Oncol 2021; 11:796774. [PMID: 34956908 PMCID: PMC8695896 DOI: 10.3389/fonc.2021.796774] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 11/23/2021] [Indexed: 12/24/2022] Open
Abstract
Although the association of MEG3 gene rs7158663 polymorphism with cancer susceptibility has been investigated, the findings are inconsistent. The aim of this study was to analyze the association between the rs7158663 polymorphism and cancer susceptibility through a case-control study and meta-analysis. In a case-control study with 430 colorectal cancer (CRC) cases and 445 healthy controls, the rs7158663 polymorphism was genotyped by direct sequencing. STATA software was used to calculate the pooled odds ratio and 95% confidence interval in a meta-analysis including 4,649 cancer cases and 5,590 controls. Both the case-control study and meta-analysis showed that the rs7158663 polymorphism was associated with increased susceptibility to CRC. Individuals carrying the AA or GA genotype were more likely to develop CRC than those carrying the rs7158663 GG genotype. Interestingly, MEG3 expression was significantly lower in colorectal tissues of the AA or GA genotype compared to those of the rs7158663 GG genotype. In addition, the meta-analysis suggested that the rs7158663 polymorphism was also associated with increased susceptibility to breast cancer and gastric cancer. Bioinformatics analysis showed that the rs7158663 A allele contributed to the binding of hsa-miR-4307 and hsa-miR-1265 to MEG3. In conclusion, the current findings suggest that the MEG3 gene rs7158663 polymorphism may serve as a genetic marker for predicting the risk of cancers, such as breast cancer, gastric cancer and CRC. However, the sample size of the current study is still insufficient, especially in the subgroup analysis. Therefore large and well-designed studies are needed to validate our findings.
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Affiliation(s)
- Xueren Gao
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Xianyang Li
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Shulong Zhang
- Department of General Surgery, Xuhui District Central Hospital, Shanghai, China
| | - Xiaoting Wang
- Physical Examination Centre, Xuhui District Central Hospital, Shanghai, China
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Gao X, Yang J, Wang D, Zeng Q, Li F, Zhou S, Zhang X, Fan C, Gao Z, Zhao Y. Association between HULC rs7763881 and cancer risk: an updated Meta-analysis. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2021; 41:85-96. [PMID: 34865614 DOI: 10.1080/15257770.2021.2008433] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/23/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
In recent years, several case-control studies have explored the association between the rs7763881 locus polymorphism of the HULC gene and cancer risk, however, the findings have been inconsistent. Therefore, a meta-analysis was conducted to clarify the association. Relevant case-control studies were obtained from CNKI, Embase, Web of Science and PubMed databases. RevMan software was used to perform data analysis. A total of 8 case-control studies containing 4036 cases and 5286 controls were included in the current meta-analysis. The overall analysis results showed no significant association between the rs7763881 locus polymorphism and cancer risk. However, stratified analysis based on cancer type showed that the rs7763881 locus polymorphism was associated with the decreased risk of hepatocellular cancer, colorectal cancer and esophageal cancer. In conclusion, the current findings suggest that the rs7763881 polymorphic loci located on the HULC gene may serve as a biomarker for determining an individual's risk of hepatocellular cancer, colorectal cancer and esophageal cancer.
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Affiliation(s)
- Xueren Gao
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Jiaxin Yang
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Dongbo Wang
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Qinghang Zeng
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Fangting Li
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Sasha Zhou
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Xue Zhang
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Chen Fan
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Ziyan Gao
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
| | - Yining Zhao
- School of Pharmacy, Yancheng Teachers' University, Yancheng, China
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