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Wang F, Zhou C, Zhu Y, Keshavarzi M. The microRNA Let-7 and its exosomal form: Epigenetic regulators of gynecological cancers. Cell Biol Toxicol 2024; 40:42. [PMID: 38836981 PMCID: PMC11153289 DOI: 10.1007/s10565-024-09884-3] [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: 01/31/2024] [Accepted: 05/15/2024] [Indexed: 06/06/2024]
Abstract
Many types of gynecological cancer (GC) are often silent until they reach an advanced stage, and are therefore often diagnosed too late for effective treatment. Hence, there is a real need for more efficient diagnosis and treatment for patients with GC. During recent years, researchers have increasingly studied the impact of microRNAs cancer development, leading to a number of applications in detection and treatment. MicroRNAs are a particular group of tiny RNA molecules that regulate regular gene expression by affecting the translation process. The downregulation of numerous miRNAs has been observed in human malignancies. Let-7 is an example of a miRNA that controls cellular processes as well as signaling cascades to affect post-transcriptional gene expression. Recent research supports the hypothesis that enhancing let-7 expression in those cancers where it is downregulated may be a potential treatment option. Exosomes are tiny vesicles that move through body fluids and can include components like miRNAs (including let-7) that are important for communication between cells. Studies proved that exosomes are able to enhance tumor growth, angiogenesis, chemoresistance, metastasis, and immune evasion, thus suggesting their importance in GC management.
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Affiliation(s)
- Fei Wang
- Haiyan People's Hospital, Zhejiang Province, Jiaxing, 314300, Zhejiang, China
| | - Chundi Zhou
- Haiyan People's Hospital, Zhejiang Province, Jiaxing, 314300, Zhejiang, China
| | - Yanping Zhu
- Haiyan People's Hospital, Zhejiang Province, Jiaxing, 314300, Zhejiang, China.
| | - Maryam Keshavarzi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Tehran, Iran.
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2
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Zhang L, Zhang Z, Xie J, Zhao Y, Tian G, Jiang H, Tao H, Liu J. Target invasion-triggered signal amplification based on duplex-specific nuclease for selective and sensitive detection of miRNAs. Anal Chim Acta 2022; 1189:339182. [PMID: 34815041 DOI: 10.1016/j.aca.2021.339182] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/06/2021] [Accepted: 10/15/2021] [Indexed: 01/10/2023]
Abstract
Dysregulation of MicroRNAs (miRNAs) cause various diseases in humans, and developing reliable methods to detect miRNAs is critical for molecular diagnostics and personalized medicine. This study developed a toehold-mediated target invasion combined with duplex-specificity nuclease (DSN)-assisted cyclic signal amplification fluorescent sensor. Herein, we take advantage of toehold-mediated target invasion process to ensure the high selectivity of miRNA determination, coupled with the unique cleavage properties of DSN to improve the sensitivity of the strategy significantly. Throughout the assay, the whole procedure of detection the target let-7a has a limit of detection (LOD) as low as 9.00 fM and an excellent linear range from 1 pM to 100 nM for no more than 60 min. The assay shows reasonable specificity in detecting mismatched miRNAs and can realize single-base discrimination in the let-7 families. Finally, the developed method was applied to detect the miRNAs extracted from human serum. The results were consistent with those based on the quantitative reverse transcription-polymerase chain reaction(qRT-PCR) method, which shows great potential application value in clinical molecular diagnostics and biological research.
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Affiliation(s)
- Limei Zhang
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical, University, Luzhou, 646000, PR China
| | - Zhang Zhang
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical, University, Luzhou, 646000, PR China
| | - Jingling Xie
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical, University, Luzhou, 646000, PR China
| | - Yuanqing Zhao
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical, University, Luzhou, 646000, PR China
| | - Gang Tian
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical, University, Luzhou, 646000, PR China
| | - Hui Jiang
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical, University, Luzhou, 646000, PR China
| | - Hualin Tao
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical, University, Luzhou, 646000, PR China.
| | - Jinbo Liu
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical, University, Luzhou, 646000, PR China.
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3
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Wang L, Li J, Li Y, Pang LB. Hsa-let-7c exerts an anti-tumor function by negatively regulating ANP32E in lung adenocarcinoma. Tissue Cell 2020; 65:101372. [PMID: 32746998 DOI: 10.1016/j.tice.2020.101372] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/12/2020] [Accepted: 05/03/2020] [Indexed: 11/29/2022]
Abstract
We attempted to investigate the relationship between hsa-let-7c and ANP32E, as well as their influence on the cells phenotype of lung adenocarcinoma. Expression of hsa-let-7c and prognostic values were assessed by bioinformatics analysis based on TCGA database. Quantitative real-time PCR and western blot was employed to measure relative expression of hsa-let-7c or ANP32E. The targeting relationship between let-7c and ANP32E was predicted by biological software and validated by dual luciferase reporter assay. With gene transfection technology, cell proliferation, invasion and migration were appraised by cell counting Kit-8, clone formation and Transwell assays. The results showed that hsa-let-7c was downregulated in lung adenocarcinoma. Downregulation of hsa-let-7c notably led to a poor survival. ANP32E was forecasted and confirmed as a directly target of hsa-let-7c, and was upregulated in lung adenocarcinoma. Furthermore, upregulation of ANP32E had a significant correlation with unsatisfactory survival. Meanwhile, the levels of ANP32E were negatively regulated by hsa-let-7c. Upregulation of hsa-let-7c remarkably suppressed the Calu-3 cell proliferation, invasion and migration, while ANP32E overexpression plasmids rescued the downtrend. Inversely, hsa-let-7c silencing in NCI-H209 cells presented the opposite outcomes. Collectively, hsa-let-7c shows an anti-tumor effect in lung adenocarcinoma by targeting ANP32E and is expected to be a potential therapeutic target for lung adenocarcinoma.
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Affiliation(s)
- Lei Wang
- Department of Pulmonary and Critical Care Medicine, Shandong Jining NO.1 People's Hospital, Jining, Shandong 272001, PR China
| | - Jun Li
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo Colleage of Medicine, Shandong University, Jinan, Shandong 250013, PR China
| | - Yan Li
- Jining Center for Disease Control and Prevention, Jining, Shandong 272000, PR China
| | - Long-Bin Pang
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo Colleage of Medicine, Shandong University, Jinan, Shandong 250013, PR China.
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4
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A genetic variant rs13293512 in the promoter of let-7 is associated with an increased risk of breast cancer in Chinese women. Biosci Rep 2019; 39:BSR20182079. [PMID: 31028134 PMCID: PMC6533205 DOI: 10.1042/bsr20182079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 04/03/2019] [Accepted: 04/10/2019] [Indexed: 12/13/2022] Open
Abstract
Growing evidence has demonstrated that single-nucleotide polymorphisms (SNPs) in the promoter of miRNA may influence individuals’ susceptibility to human diseases. We examined two SNPs rs10877887 and rs13293512 in the promoters of let-7 family to determine if the two SNPs were related to the occurrence of breast cancer (BC). Genotyping of the two SNPs was performed by PCR and restriction fragment length polymorphism analysis or TaqMan assay in 301 BC patients and 310 age matched controls. We found a higher frequency of rs13293512 CC genotype and rs13293512 C allele amongst BC patients (CC vs TT: adjusted odds ratio (OR) = 1.78; 95% CI: 1.14–2.80; P=0.012; C vs T: adjusted OR = 1.33; 95% CI: 1.06–1.67; P=0.013). Stratification analysis showed that rs13293512 CC genotype was associated with an increased risk of BC in patients with negative estrogen receptor (adjusted OR = 2.39; 95% CI: 1.32–4.30; P=0.004), patients with negative progesterone receptor (adjusted OR = 1.92; 95% CI: 1.11–3.33; P=0.02), patients with T1-2 stage cancer (adjusted OR = 1.77; 95% CI: 1.07–2.93; P=0.03), and patients with N1-3 stage cancer (adjusted OR = 1.89; 95% CI: 1.13–3.17; P=0.015). These findings suggest that rs13293512 in the promoter of let-7a-1/let-7f-1/let-7d cluster may be a possible biomarker for the development of BC in Chinese women.
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5
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Heidari Z, Mohammadpour-Gharehbagh A, Eskandari M, Harati-Sadegh M, Salimi S. Genetic polymorphisms of miRNA let7a-2 and pri-mir-34b/c are associated with an increased risk of papillary thyroid carcinoma and clinical/pathological features. J Cell Biochem 2019; 120:8640-8647. [PMID: 30552691 DOI: 10.1002/jcb.28152] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 11/05/2018] [Indexed: 01/24/2023]
Abstract
microRNAs (miRNAs) as a group of short noncoding RNAs are crucial molecules in transcriptional and translational regulation of oncogenes and tumor suppressor genes. Evidence showed there was an association between the miRNA polymorphisms and various cancers, including papillary thyroid carcinoma (PTC). The present study aims to evaluate the possible effects of let7a-2 rs1143770 and pri-mir-34b/c rs4938723 polymorphisms on PTC susceptibility. A total of 120 patients with PTC and 130 age, sex, and race matched controls were enrolled in the case-control study. The polymerase chain reaction-restriction fragment length polymorphism method was used for genotyping of let7a-2 rs1143770 and pri-mir-34b/c rs4938723 polymorphisms. The let7a-2 rs1143770 CT and TT genotypes were associated with a 1.9-fold and 2.2-fold higher risk of PTC, respectively (P = 0.027 and P = 0.041). Moreover, the let7a-2 rs1143770 polymorphism was associated with increased PTC risk in both dominant (2-fold, P = 0.015) and the allelic model (1.5-fold, P = 0.03). The frequency of pri-mir-34b/c rs4938723TC genotype was significantly higher in patients with PTC and associated with a two-fold higher risk of PTC (P = 0.013). In addition, this polymorphism was associated with a 1.8-fold increased risk of PTC in dominant model (P = 0.021). The let7a-2 rs1143770CT genotype was associated with a 3.5-fold increased risk of N1 stage in PTC patients (P = 0.04), however, pri-mir-34b/c rs4938723TC genotype was associated with a 3.4-fold and 5.1-fold increased risk of III-IV stage and vascular invasion in PTC group, respectively (P = 0.04 and P = 0.04). In conclusion, the present study shows that let7a-2 rs1143770 and pri-mir-34b/c rs4938723 polymorphisms could be susceptible factors for PTC and some clinical features.
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Affiliation(s)
- Zahra Heidari
- Department of Endocrinology, Zahedan University of Medical Sciences, Zahedan, Iran
| | | | - Moein Eskandari
- Department of Laboratory Sciences, School of Paramedical Sciences, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mahdiyeh Harati-Sadegh
- Department of Genetics, Fars Science and Research Branch, Islamic Azad University, Marvdasht, Iran.,Department of Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | - Saeedeh Salimi
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.,Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
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6
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A comprehensive evaluation for polymorphisms in let-7 family in cancer risk and prognosis: a system review and meta-analysis. Biosci Rep 2018; 38:BSR20180273. [PMID: 29717029 PMCID: PMC6066660 DOI: 10.1042/bsr20180273] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/20/2018] [Accepted: 04/30/2018] [Indexed: 12/17/2022] Open
Abstract
miRNA polymorphisms had potential to be biomarkers for cancer susceptibility and prognosis. The mature miRNA-let-7 family was considered as the most important miRNA for the cancer incidence and progression. Recently, the promising let-7 miRNAs were reported to be associated with various cancers, but the results were inconsistent. We performed a first-reported systematic review with a meta-analysis for the association of let-7 family single nucleotide polymorphisms (SNPs) with cancer risk/prognosis. Ten studies were included with a total of 3878 cancer cases and 4725 controls for the risk study and 1665 cancer patients for the prognosis study in this meta-analysis. In the risk study, the let-7i rs10877887 and let-7a-1/let-7f-1/let-7d rs13293512 were shown no significant association for the overall cancer risk. In the stratified analysis, the rs10877887 variant genotype was significantly associated with a decreased cancer risk in head and neck cancer (TC compared with TT: P=0.017; odds ratio (OR) = 0.81; TC + CC compared with TT: P=0.020; OR = 0.82). In the prognosis study, the let-7i rs10877887 SNP was shown to be associated with a higher risk for cancer prognosis in the dominate model (P=0.004; hazard ratio (HR) = 1.32). The other two SNPs (let-7a-1 rs10739971 and let-7a-2 rs629367) were not found to be associated with cancer survival. None of the let-7 family polymorphisms had potential to be biomarkers for cancer susceptibility but let-7i rs10877887 SNP had potential to be predicting markers for cancer prognosis. In the future, large-sample studies are still needed to verify our findings.
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7
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Dong H, Huang Z, Zhang H, Xiao Z, Liu Q. Rs13293512 polymorphism located in the promoter region of let-7 is associated with increased risk of radiation enteritis in colorectal cancer. J Cell Biochem 2018; 119:6535-6544. [PMID: 29388713 DOI: 10.1002/jcb.26733] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 01/25/2018] [Indexed: 11/07/2022]
Abstract
RE (Radiation enteritis) has been characterized by the inflammation reaction, and in this study, we aim to explore inflammatory cytokines and underlying mechanism involved in the pathogenesis of RE. Luciferase assay was performed to explore whether polymorphism affected the expression of let-7, and also validated let-7 directly regulated f IL-6 expression. Then Elisa was performed to study the mechanism of rs13293512 polymorphism associated with enteritis occurrence. And Western-blot and real-time PCR were performed to verify the relationship between let-7 and IL-6. 380 colorectal cancer patients were recruited, and all participants were genotyped. We found that occurrence probability of enteritis patients carried CC genotype (32%) was much higher than that in TT and TC groups (15%). In addition, we showed that the presence of the minor (C) allele of the polymorphism in the promoter region of let-7 substantially reduced the transcription activity of let-7, furthermore, we validated that let-7 directly regulated IL-6 expression by using luciferase reporter system. Moreover, IL-6 was highly expressed in peripheral blood and colonic mucosa samples genotyped as CC compared to those in TT and TC groups, furthermore, IL-6 was highly expressed in peripheral blood and colonic mucosa samples from participants with enteritis than without enteritis, whereas let-7 was highly expressed in peripheral blood and colonic mucosa samples genotyped as TT and TC compared to those in CC groups. Let-7 polymorphism (rs13293512) was associated with risk of RE in the colorectal cancer patients who received radiotherapy.
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Affiliation(s)
- HongYu Dong
- Department of Colorectal and Anal Surgery, Hunan People's Hospital, Changsha, Hunan, China
| | - ZhongCheng Huang
- Department of Colorectal and Anal Surgery, Hunan People's Hospital, Changsha, Hunan, China
| | - HongLian Zhang
- Department of Burns Plastic Surgery, The 3rd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - ZhiGang Xiao
- Department of Colorectal and Anal Surgery, Hunan People's Hospital, Changsha, Hunan, China
| | - Qi Liu
- Department of Colorectal and Anal Surgery, Hunan People's Hospital, Changsha, Hunan, China
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8
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Sun R, Chen P, Li L, Sun H, Nie X, Liang Y, Yuan F, Pu Y, Bai P, Zhang L, Gao L. A polymorphism rs4705341 in the flanking region of miR-143/145 predicts risk and prognosis of colorectal cancer. Oncotarget 2018; 7:62084-62090. [PMID: 27556691 PMCID: PMC5308712 DOI: 10.18632/oncotarget.11387] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 08/08/2016] [Indexed: 12/17/2022] Open
Abstract
The aim of this study was to investigate the effect of a polymorphism rs4705341 in the flanking region of miR-143/145 on the risk of colorectal cancer (CRC). The rs4705341 polymorphism was analyzed in 1002 cases and 1062 controls using a polymerase chain reaction-restriction fragment length polymorphism method. We found a significantly reduced CRC susceptibility with miR-143/145 rs4705341 in homozygote comparison (adjusted OR = 0.66, 95%CI, 0.50-0.88, P = 0.004), dominant genetic model (adjusted OR = 0.80, 95%CI, 0.67-0.96, P = 0.015), recessive genetic model (adjusted OR = 0.73, 95%CI, 0.56-0.94, P = 0.016), and allele comparison (adjusted OR = 0.83, 95%CI, 0.73-0.94, P = 0.004). Stratification analysis showed that the rs4705341 was related to differentiated status, clinical stage I-II, and patients without lymph node metastasis. Moreover, patients with rs4705341GG had a longer overall survival (adjusted HR = 5.57, 95%CI, 0.95-32.68). These findings indicate that the miR-143/145 rs4705341 may be used as a potential biomarker for the development and prognosis of CRC.
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Affiliation(s)
- Ruifen Sun
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Central Laboratory, Yunnan University of Chinese Traditional Medicine, Yunnan, Kunming 650500, P.R. China.,Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Peng Chen
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lijuan Li
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Hong Sun
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xinwen Nie
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yundan Liang
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Fang Yuan
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yan Pu
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Peng Bai
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lin Zhang
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Linbo Gao
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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9
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Domínguez-Vigil IG, Moreno-Martínez AK, Wang JY, Roehrl MH, Barrera-Saldaña HA. The dawn of the liquid biopsy in the fight against cancer. Oncotarget 2018; 9:2912-2922. [PMID: 29416824 PMCID: PMC5788692 DOI: 10.18632/oncotarget.23131] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 11/10/2017] [Indexed: 01/06/2023] Open
Abstract
Cancer is a molecular disease associated with alterations in the genome, which, thanks to the highly improved sensitivity of mutation detection techniques, can be identified in cell-free DNA (cfDNA) circulating in blood, a method also called liquid biopsy. This is a non-invasive alternative to surgical biopsy and has the potential of revealing the molecular signature of tumors to aid in the individualization of treatments. In this review, we focus on cfDNA analysis, its advantages, and clinical applications employing genomic tools (NGS and dPCR) particularly in the field of oncology, and highlight its valuable contributions to early detection, prognosis, and prediction of treatment response.
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Affiliation(s)
- Irma G. Domínguez-Vigil
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina de la Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Ana K. Moreno-Martínez
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina de la Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
- Genetics Laboratory, Vitagénesis, Monterrey, Nuevo León, México
| | | | - Michael H.A. Roehrl
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Hugo A. Barrera-Saldaña
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina de la Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
- TecSalud, Tecnológico de Monterrey, San Pedro Garza García, Nuevo León, México
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10
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Liu J, Ni S. Association between genetic polymorphisms in the promoters of let-7 and risk of cervical squamous cell carcinoma. Gene 2017; 642:256-260. [PMID: 29154871 DOI: 10.1016/j.gene.2017.11.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 10/24/2017] [Accepted: 11/13/2017] [Indexed: 02/07/2023]
Abstract
Numerous reports showed low levels of let-7 family in cervical cancer, acting as tumor suppressors by regulating multiple target genes. Genetic variants in the promoter of miRNA have been reported to influence individuals' susceptibility to human diseases. We aimed to investigate the association of rs10877887 and rs13293512 polymorphisms in the promoters of let-7 with risk of cervical squamous cell carcinoma (CSCC). A total of 331 patients with CSCC and 358 controls were included. Genotyping of rs10877887 was done using polymerase chain reaction-restriction fragment length polymorphism analysis. Genotyping of rs13293512 was performed using Taqman allelic discrimination. Relative expression of let-7 family was determined using quantitative real-time polymerase chain reaction. The rs10877887CC genotype was significantly associated with an increased risk of CSCC compared with the rs10877887TT (adjusted OR=2.11, 95% CI, 1.31-3.40, p-value=0.002) or rs10877887 TT/CT genotypes (adjusted OR=2.11, 95% CI, 1.34-3.31, p-value<0.001). Similarly increased risk of CSCC was observed when compared rs10877887T with rs10877887C allele (adjusted OR=1.35, 95% CI, 1.08-1.69, p-value=0.008). Combined analysis showed that individuals carrying the genotypes of rs10877887CC+rs13293512CC had a 4.78-fold higher risk to develop CSCC compared with those carrying the genotypes of rs10877887CT/TT+rs13293512CT/TT (OR=4.78, 95% CI, 1.78-12.84, p-value=0.001). Additionally, patients harboring rs10877887CC genotype had a lower level of let-7i in CSCC tissues (p-value=0.02). This observation indicates that rs10877887 may be a useful biomarker for the etiology of CSCC.
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Affiliation(s)
- Jing Liu
- Department of Gynecology, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300100, PR China.
| | - Shanshan Ni
- Department of Gynecology, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300100, PR China
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11
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Luan J, Wang J, Su Q, Chen X, Jiang G, Xu X. Meta-analysis of the differentially expressed microRNA profiles in nasopharyngeal carcinoma. Oncotarget 2016; 7:10513-21. [PMID: 26824418 PMCID: PMC4891136 DOI: 10.18632/oncotarget.7013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 01/01/2016] [Indexed: 01/17/2023] Open
Abstract
MicroRNAs(miRNAs), as non-coding molecules, were proved to be correlated with gene expression in naspharyngeal carcinoma (NPC) development. In this research, a comprehensive meta-analysis of eight independent miRNA expression studies in NPC was preformed by using robust rank aggregation method (RRA), which contained a total of 775 tumor and 227 non-cancerous samples. There were 7 significant dysregulated miRNAs identified including three increased (miR-483–5p, miR-29c-3p and miR-205–5p) and four decreased (miR-29b-3p, let-7d-5p, miR-100– 5p and let-7g-5p) miRNAs. Subsequently, the miRNA target prediction and pathway enrichment analysis were carried out to find out the biological and functional relevant genes involved in the meta-signature miRNA regulation. Finally, several signaling and cancer pathogenesis pathways were suggested to be more frequently associated with the progression of NPC. In this research the meta-signature miRNA identified may be used to develop a series of diagnostic and prognostic biomarkers for NPC that serve specificity for use in clinics.
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Affiliation(s)
- Junwen Luan
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
| | - Junfu Wang
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
| | - Qinghong Su
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
| | - Xuemei Chen
- Department of Otolaryngology, The Second Hospital of Shandong University, Jinan, Shandong 250033, China
| | - Guosheng Jiang
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
| | - Xiaoqun Xu
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
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Yuan F, Sun R, Li L, Jin B, Wang Y, Liang Y, Che G, Gao L, Zhang L. A functional variant rs353292 in the flanking region of miR-143/145 contributes to the risk of colorectal cancer. Sci Rep 2016; 6:30195. [PMID: 27444415 PMCID: PMC4957080 DOI: 10.1038/srep30195] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 06/29/2016] [Indexed: 02/06/2023] Open
Abstract
MicroRNA (miR)-143 and miR-145 have been identified as molecular regulators in cell proliferation, cell growth, clone formation, apoptosis, cell cycle, invasion, and migration. We previously found that rs353292 in the flanking region of miR-143/145 showed a high frequency in patients with colorectal cancer (CRC). To identify whether the rs353292 polymorphism is a risk factor for CRC, we conducted this study with larger samples. A total of 809 patients with CRC and 1005 gender matched controls were collected. The rs353292 polymorphism was genotyped by using TaqMan allelic discrimination. Dual luciferase reporter assay was carried out to measure the transcriptional activity. We found that the rs353292 polymorphism was associated with an increased risk for developing CRC in heterozygous comparison (adjusted OR = 1.70, 95% CI, 1.32–2.20, P < 0.001), dominant genetic model (adjusted OR = 1.62, 95% CI, 1.26–2.09, P < 0.001), and allele comparison (adjusted OR = 1.46, 95% CI, 1.16–1.84, P = 0.001). The rs353292 CT/TT carriers exhibited a lower expression of miR-143 compared to the CC carriers (P = 0.04). Moreover, the pGL3-rs353292T displayed a significantly lower luciferase activity than pGL3-rs353292C (P < 0.01). These findings indicate that the rs353292 polymorphism is functional and may be a risk factor for the development of CRC.
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Affiliation(s)
- Fang Yuan
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Ruifen Sun
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Central Laboratory, Yunnan University of Chinese Traditional Medicine, Kunming 650500, Yunnan, P.R. China
| | - Lijuan Li
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Bo Jin
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yanyun Wang
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health; Key Laboratory of Obstetric &Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education; West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yundan Liang
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health; Key Laboratory of Obstetric &Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education; West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Guanglu Che
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Linbo Gao
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health; Key Laboratory of Obstetric &Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education; West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lin Zhang
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health; Key Laboratory of Obstetric &Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education; West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Li J, Cheng G, Wang S. A Single-Nucleotide Polymorphism of miR-196a2T>C rs11614913 Is Associated with Hepatocellular Carcinoma in the Chinese Population. Genet Test Mol Biomarkers 2016; 20:213-5. [PMID: 26866381 DOI: 10.1089/gtmb.2015.0271] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE We investigated the miR-196a2T>C rs11614913 variant in the initiation and progression of hepatocellular carcinoma (HCC). METHODS A case-control research model was conducted and the genotypes of 109 HCC patients and 105 healthy controls were identified by direct sequencing. The correlation between the rs11614913 genotypes and the susceptibility to HCC was evaluated using an unconditional logistic regression model. RESULTS We found that 20/109 (18.3%) patients were TT homozygote, whereas 64/109 (58.8%) patients had the CT genotype, and 25/109 (22.9%) patients had the CC genotype. In control samples, the frequency of the TT homozygote was 33.3%, that of CT was 49.5%, and that of CC was 17.1%. After adjusting for age and gender by logistic regression analysis, we found significant differences in susceptibility to HCC by genotype (TT vs. CT+CC: OR = 2.52, 95%CI = 1.18-4.19; p < 0.05). The CT and CC genotypes were more common in HCC patients compared to controls. Moreover, the CT+CC genotypes were associated with a poor HCC prognosis. CONCLUSIONS In this study, we found that the CT+CC genotypes of rs11614913 were significantly associated with an increased risk and poor prognosis for HCC in the Chinese population.
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Affiliation(s)
- Juan Li
- Department of Gastroenterology, Second Affiliate Hospital of Soochow University , Suzhou, China
| | - Guilian Cheng
- Department of Gastroenterology, Second Affiliate Hospital of Soochow University , Suzhou, China
| | - Shaofeng Wang
- Department of Gastroenterology, Second Affiliate Hospital of Soochow University , Suzhou, China
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Sima X, Sun H, Zhou P, You C. A Potential Polymorphism in the Promoter of Let-7 is Associated With an Increased Risk of Intracranial Aneurysm: A Case-Control Study. Medicine (Baltimore) 2015; 94:e2267. [PMID: 26705209 PMCID: PMC4697975 DOI: 10.1097/md.0000000000002267] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Let-7 family plays a key role in the progression of atherosclerosis and intracranial aneurysm (IA). We hypothesized that rs10877887 and rs13293512 polymorphisms in the promoters of let-7 family may be associated with the susceptibility of IA. We genotyped the 2 single nucleotide polymorphisms (SNPs) in 305 patients with IA and 401 healthy controls. The rs10877887 was analyzed using a polymerase chain reaction-restriction fragment length polymorphism assay, and the rs13293512 was analyzed using a TaqMan SNP genotyping method. The relative expression of let-7 family was measured in plasma of cases and controls using real-time PCR. We found that the rs13293512CT genotype was associated with a significantly increased risk of developing IA in a heterozygote comparison (adjusted OR = 1.43, 95% CI, 1.00-2.05, P = 0.048) and dominant comparison (adjusted OR = 1.44, 95% CI, 1.02-2.03, P = 0.04). Combined analysis showed that the rs10877887TT and rs13293512CC/CT genotypes had a significantly increased risk of IA (OR = 1.67, 95% CI, 1.04-2.68, P = 0.03). Moreover, the levels of let-7a, let-7d, and let-7f were downregulated in IA patients, and patients with the rs13293512CC/CT genotypes had a lower level of let-7a than those with rs13293512TT genotype (P = 0.03). These findings indicate that the rs13293512CC/CT is a risk factor for the development of IA, possibly because of the genotypes resulting in a lower level of let-7a.
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Affiliation(s)
- Xiutian Sima
- From the Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, P. R. China
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Wang Y, Wei T, Xiong J, Chen P, Wang X, Zhang L, Gao L, Zhu J. Association Between Genetic Polymorphisms in the Promoter Regions of Let-7 and Risk of Papillary Thyroid Carcinoma: A Case-Control Study. Medicine (Baltimore) 2015; 94:e1879. [PMID: 26512603 PMCID: PMC4985417 DOI: 10.1097/md.0000000000001879] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
UNLABELLED The aim of this study was to investigate the association between 2 polymorphisms (ie, rs10877887 and rs13293512) in the promoter regions of let-7 and the risk of papillary thyroid carcinoma (PTC).A case-control study of 618 PTC patients and 562 controls was conducted. The rs10877887 polymorphism was genotyped by using polymerase chain reaction-restriction fragment length polymorphism and the rs13293512 polymorphism was genotyped by using a TaqMan Genotyping Assay. The results were confirmed by DNA sequencing.The rs10877887 polymorphism had reduced risks of PTC in heterozygous comparison, dominant model, and overdominant model (TC vs TT: adjusted odds ratio [OR] = 0.73, 95% confidence interval [95% CI] = 0.58-0.94, P = 0.01; TC/CC vs TT: adjusted OR = 0.79, 95% CI = 0.63-1.00, P = 0.047; TC vs TT/CC: adjusted OR = 0.73, 95% CI = 0.57-0.92, P = 0.007, respectively). Stratified analyses showed that PTC patients carrying the rs10877887 CC genotype were more likely to have multiple tumors (adjusted OR = 1.71, 95% CI = 1.03-2.86, P = 0.04), and PTC patients carrying the rs13293512 TC + CC or CC were more likely to develop N0 status (TC/CC vs TT: adjusted OR = 0.64, 95% CI = 0.43-0.94, P = 0.02; CC vs TC/TT adjusted OR = 0.50, 95% CI = 0.33-0.77, P = 0.001, respectively).Our study suggests that the rs10877887 polymorphism may be associated with the risk of PTC and the rs13293512 polymorphism may correlate to lymph node metastasis in PTC.
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Affiliation(s)
- Yichao Wang
- From the Department of Thyriod Surgery (YW, TW, XW, JZ); Department of Pancreatic Surgery (JX); and Department of Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Sichuan Province, China (PC, LZ, LG)
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Chen Z, Wang D, Gu C, Liu X, Pei W, Li J, Cao Y, Jiao Y, Tong J, Nie J. Down-regulation of let-7 microRNA increased K-ras expression in lung damage induced by radon. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 40:541-548. [PMID: 26318567 DOI: 10.1016/j.etap.2015.08.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 08/06/2015] [Accepted: 08/08/2015] [Indexed: 06/04/2023]
Abstract
Radon has long been recognized as a human carcinogen leading to lung cancer, but the underlying mechanisms remain obscure. Recent studies have shown that the let-7 microRNA and K-ras play an important role in the development of various cancers. However, the exact role between let-7 and K-ras in radon induced lung damage has not been explored so far. In the present study, wistar rats and human bronchial epithelial (HBE) cells were long-term exposed to radon, and then alterations in histological pathology of rat lung tissue, ROS, antioxidant enzymes activities and clonogenic formation in HBE cells, as well as changes in let-7 and K-ras expression were determined to observe the adverse effects induced by radon. The results showed that long-term exposure to radon produced severe lung damage in rats, significantly increased ROS production and clonogenic formation ratios and decreased SOD activities in HBE cells. In addition, an obvious down-regulation of let-7 and up-regulation of K-ras were also revealed both in mRNA and in protein level in lung tissue of rats and HBE cells exposed to radon. Furthermore, a significant down-regulation of K-ras was then confirmed in both let-7b-3p and let-7a-2-3p transfected HBE cells. Taken together, the present results propose an involvement of let-7 microRNA and K-ras in radon induced lung damage both in vivo and in vitro, which may thus be of potential value in early diagnosis and therapy of radon-induced lung tumorgenesis.
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Affiliation(s)
- Zhihai Chen
- Department of Toxicology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou 215123, China
| | - Dapeng Wang
- Department of Toxicology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou 215123, China
| | - Chao Gu
- Department of Toxicology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou 215123, China
| | - Xing Liu
- Department of Toxicology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou 215123, China
| | - Weiwei Pei
- Department of Toxicology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou 215123, China
| | - Jianxiang Li
- Department of Toxicology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou 215123, China
| | - Yi Cao
- Department of Toxicology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou 215123, China
| | - Yang Jiao
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, China
| | - Jian Tong
- Department of Toxicology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou 215123, China.
| | - Jihua Nie
- Department of Toxicology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou 215123, China.
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Yan YX, Wu LJ, Zhang J, Wang S, Wang W, Dong J, He Y. Let-7 related genetic variation and risk of metabolic syndrome in a Chinese population. Endocr J 2015; 62:887-96. [PMID: 26178671 DOI: 10.1507/endocrj.ej15-0236] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
MicroRNA (miRNA) related genetic variation may change miRNA binding affinity and mRNA expression levels of the target genes, thus leading to altered metabolic parameters. This study explored the influence of let-7 related single nucleotide polymorphisms (SNPs) on individual susceptibility to metabolic syndrome (MetS) in a Chinese population. Seven SNPs located at the pri-let-7 gene region, pre-let-7 gene region or 3'-UTR of the KRAS gene were selected. The SNPs were genotyped in 503 MetS patients and 529 normal controls using the high-throughput Sequenom genotyping platform. Unconditional logistic regression analysis was utilized to estimate the association between these SNPs and the risk of MetS. There are three SNPs significantly associated with MetS. The A allele of rs17276588 was associated with an increased risk effect for MetS (Adjusted OR=1.75, 95%CI 1.37-2.25, P<0.001). Rs10993081 AG genotype was significantly associated with an increased risk of MetS compared with AA genotypes (Adjusted OR=1.42, 95%CI 1.11-1.83, P=0.006). Rs10877887 TC genotype was significantly associated with an increased risk of MetS compared with TT genotypes (Adjusted OR=1.52, 95% CI 1.16-1.99, P=0.002). Additionally, interactions between rs7045890 and rs712, rs17276588 and rs10877887 were significantly associated with risk of MetS. In conclusion, our study found that let-7 related genetic variation is associated with MetS and may contribute to the susceptibility of MetS. Larger, prospective studies are warranted to validate our findings.
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Affiliation(s)
- Yu-Xiang Yan
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China
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