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Ministrini S, Padro T. MicroRNA in cardiometabolic health and disease: The perspectives of sex, gender and personalised medicine. Eur J Clin Invest 2024; 54:e14223. [PMID: 38623918 DOI: 10.1111/eci.14223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/07/2024] [Accepted: 04/08/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND Personalized medicine represents a novel and integrative approach that focuses on an individual's genetics and epigenetics, precision medicine, lifestyle and exposures as key players of health status and disease phenotypes. METHODS In this narrative review, we aim to carefully discuss the current knowledge on gender disparities in cardiometabolic diseases, and we consider the sex- specific expression of miRNAs and their role as promising tool in precision medicine. RESULTS Personalised medicine overcomes the restricted care of patient based on a binomial sex approach, by enriching itself with a holistic and dynamic gender integration. Recognized as a major worldwide health emergency, cardiometabolic disorders continue to rise, impacting on health systems and requiring more effective and targeted strategies. Several sex and gender drivers might affect the onset and progression of cardiometabolic disorders in males and females at multiple levels. In this respect, distinct contribution of genetic and epigenetic mechanisms, molecular and physiological pathways, sex hormones, visceral fat and subcutaneous fat and lifestyle lead to differences in disease burden and outcomes in males and females. CONCLUSIONS Sex and gender play a pivotal role in precision medicine because the influence the physiology of each individual and the way they interact with environment from intrauterine life.
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Affiliation(s)
- Stefano Ministrini
- Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland
| | - Teresa Padro
- Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
- Centro de Investigación Biomédica en Red Cardiovascular (CIBERCV) Instituto de Salud Carlos III, Madrid, Spain
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2
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Mohamed AS, Salama AF, Sabaa MA, Toraih E, Elshazli RM. GEMIN4 Variants: Risk Profiling, Bioinformatics, and Dynamic Simulations Uncover Susceptibility to Bladder Carcinoma. Arch Med Res 2024; 55:102970. [PMID: 38401326 DOI: 10.1016/j.arcmed.2024.102970] [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: 09/13/2023] [Revised: 01/11/2024] [Accepted: 02/13/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND The relationship between GEMIN4 genetic variants and cancer, especially bladder carcinoma (BLCA), has been explored without conclusive results. This study aims to elucidate the link between GEMIN4 polymorphisms and BLCA susceptibility through genetic analyses, bioinformatics, and molecular dynamics (MD) simulations. METHODS A cohort of 249 participants (121 BLCA patients and 128 unrelated controls) was enrolled. PCR was employed for allelic discrimination of GEMIN4 variants, followed by subgroup stratification, haplotype analyses, structural prediction using the AlphaFold2 prediction tool, subsequent MD simulations, structural analysis, and residue interaction mapping using Desmond, UCSF ChimeraX, and Cytoscape softwares. RESULTS The rs.2740348*G variant demonstrated a protective role against BLCA in allelic (OR = 0.55, p = 0.002) and recessive (OR = 0.54, p = 0.017) models, whereas the rs.7813*T variant increased BLCA risk under the recessive model (OR = 1.90, p = 0.019). Haplotype analysis revealed a significant association between GEMIN4 haplotype (rs.2740348*C/rs.7813*T) with increased BLCA risk (OR = 2.01, p = 0.004). Univariate analysis revealed associations of the variants with albumin levels and absolute neutrophil count in BLCA patients. Pathogenicity evaluation categorized p.Gln450Glu as neutral and p.Arg1033Cys as deleterious. MD simulations revealed structural alterations and conformational shifts in the GEMIN4 protein induced by the Glu450 and Cys1033 mutations. CONCLUSIONS The study highlights the dual role of GEMIN4 variants in BLCA susceptibility, with rs.2740348 conferring protection and rs.7813 increasing risk. The Glu450 residue positively impacted protein stability, while Cys1033 had a detrimental effect on protein function. These findings underscore the significance of GEMIN4 variants in BLCA susceptibility and pave the way for future diagnostic and therapeutic initiatives.
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Affiliation(s)
- Abdallah S Mohamed
- Biochemistry Division, Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Afrah F Salama
- Biochemistry Division, Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Magdy A Sabaa
- Department of Urology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Eman Toraih
- Endocrine and Oncology Division, Department of Surgery, Tulane University School of Medicine, New Orleans, LA, USA; Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
| | - Rami M Elshazli
- Biochemistry and Molecular Genetics Unit, Department of Basic Sciences, Faculty of Physical Therapy, Horus University - Egypt, New Damietta, Egypt.
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Chauhan S, Mathur R, Jha AK. The Impact of microRNA SNPS on Breast Cancer: Potential Biomarkers for Disease Detection. Mol Biotechnol 2024:10.1007/s12033-024-01113-w. [PMID: 38512426 DOI: 10.1007/s12033-024-01113-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 02/07/2024] [Indexed: 03/23/2024]
Abstract
Breast cancer is considered a significant health concern worldwide, with genetic predisposition playing a critical role in its etiology. Single nucleotide polymorphisms (SNPs), particularly those within the 3' untranslated regions (3'UTRs) of target genes, are emerging as key factors in breast cancer susceptibility. Specifically, miRNAs have been recognized as possible novel approach for biomarkers discovery for both prognosis and diagnosis due to their direct association with cancer progression. Regional disparities in breast cancer incidence underscore the need for precise interventions, considering socio-cultural and economic factors. This review explores into the differential effects of SNP-miRNA interactions on breast cancer risk, emphasizing both risk-enhancing and protective associations across diverse populations. Furthermore, it explores the clinical implications of these findings, highlighting the potential of personalized approaches in breast cancer management. Additionally, it reviews the evolving therapeutic prospect of microRNAs (miRNAs), extending beyond cancer therapeutics to encompass various diseases, indicative of their versatility as therapeutic agents.
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Affiliation(s)
- Sakshi Chauhan
- Department of Biotechnology, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Runjhun Mathur
- Department of Biotechnology, Sharda University, Greater Noida, Uttar Pradesh, India
- Dr APJ Abdul Kalam Technical University, Lucknow, Uttar Pradesh, India
| | - Abhimanyu Kumar Jha
- Department of Biotechnology, Sharda University, Greater Noida, Uttar Pradesh, India.
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Bağcı Ö, Özdemir EM, Şanlıtürk B. Variant Analysis of miRNA Regulatory Genes in 35 Sporadic Lung Carcinoma Tumors. DOKL BIOCHEM BIOPHYS 2023; 513:S1-S7. [PMID: 38472669 DOI: 10.1134/s1607672924600052] [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: 10/11/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 03/14/2024]
Abstract
Lung cancer is one of the cancer types with the highest mortality worldwide. The most frequently mutated genes known to be clinically important in lung cancers are EGFR, BRAF, and KRAS genes. Therefore, the therapeutic agents developed are directed against variants that cause over-activation of the EGFR-KRAS-BRAF-BRAF-MEK/ERK signalling pathway. However, different responses of patients to Tyrosine Kinase Inhibitors (TKIs) suggest that new prognostic biomarkers should be defined and epigenetic mechanisms may be related to this situation. METHODS In this study, sequence analyses of AGO2, DICER, and DROSHA genes involved in miRNA biogenesis and EGFR, KRAS, and BRAF genes were performed in 35 patients with sporadic lung cancer. RESULTS We found variations in genes involved in miRNA biogenesis that have not been previously reported in the literature. In addition, we found 4 different variants in the EGFR gene that have been described in the literature. In addition, a statistically significant association was found between the presence of mutations in at least one of the genes involved in miRNA biogenesis and metastasis (p:0.02). CONCLUSIONS In conclusion, genomic dysregulation of key miRNA biogenesis genes may be one of the possible reasons for the differential response of patients to therapeutic agents and the development of metastasis in EGFR wild type tumours.
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Affiliation(s)
- Özkan Bağcı
- Department of Medical Genetics, Selcuk University, School of Medicine, Konya, Turkey.
| | | | - Batuhan Şanlıtürk
- Department of Medical Genetics, Selcuk University, School of Medicine, Konya, Turkey
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Mirabbasi R, Ebrahimi SO, Tavakoli F, Reiisi S. Novel polymorphism rs12402181 in the mature sequence of hsa-miR-3117-3p has a protective effect against breast cancer development by affecting miRNA processing and function. 3 Biotech 2023; 13:349. [PMID: 37780804 PMCID: PMC10541378 DOI: 10.1007/s13205-023-03765-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/30/2023] [Indexed: 10/03/2023] Open
Abstract
The current study aimed to investigate how the rs12402181 variant in the miR-3117-3p seed region affects miRNA processing and binding ability to the target sequences and breast cancer susceptibility. To study the role of rs12402181 polymorphism in breast cancer, blood samples were examined to investigate the possible association between the genetic variant in the miR-3117 and breast cancer susceptibility. The miR-3117 gene variant was genotyped using PCR-RFLP. The pre-miR-3117 and parts of the flanking region with GG or AA genotype were inserted into a pEGFPN1 expression vector and followed by qPCR to evaluate the effect of SNP on miR-3117-3p expression levels and function. Cell proliferation and migration properties investigated by MTT and wound healing assay. Web server databases were used for further investigation of potential changes in miRNA function. Genotype frequency study in breast cancer patients and healthy controls showed that rs12402181 polymorphism (G > A) is inversely associated with susceptibility to breast cancer (P = 0.03, OR 0.551). The variant allele led to increased production of mature miR-3117 and reduced cell proliferation and migration in MCF7 and T47D cells. These findings suggest that A allele in miR-3117-3p affects the processing of miRNA, causing an increase in the miRNA mature form which can negatively regulate tumor development and migration. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03765-y.
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Affiliation(s)
- Razieh Mirabbasi
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Seyed Omar Ebrahimi
- Department of Genetics, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran
| | - Fatemeh Tavakoli
- Department of Genetics, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran
| | - Somayeh Reiisi
- Department of Genetics, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran
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Kamalabad ST, Zamanzadeh Z, Rezaei H, Tabatabaeian M, Abkar M. Association of DROSHA rs6877842, rs642321 and rs10719 polymorphisms with increased susceptibility to breast cancer: A case-control study with genotype and haplotype analysis. Breast Dis 2023; 42:45-58. [PMID: 36911928 DOI: 10.3233/bd-220026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
BACKGROUND Multiple lines of evidence suggest that single nucleotide polymorphisms (SNPs) in genes encoding components of the microRNA processing machinery may underlie susceptibility to various human diseases, including cancer. OBJECTIVE The present study aimed to investigate whether rs6877842, rs642321 and rs10719 SNPs of DROSHA, a key component of the miRNA biogenesis pathway, are associated with increased risk of breast cancer. METHODS A total of 100 patients diagnosed with breast cancer and 100 healthy women were included. Following extraction of DNA, genotyping was performed by tetra primer- amplification refractory mutation system-PCR (T-ARMS-PCR) technique. Under the co-dominant, dominant and recessive inheritance models, the association between DROSHA SNPs and breast cancer risk was determined by logistic regression analysis. The association of DROSHA SNPs with patients' clinicopathological parameters was assessed. Also, haplotype analysis was performed to evaluate the combined effect of DROSHA SNPs on breast cancer risk. RESULTS We observed a statistically significant association between DROSHA rs642321 polymorphism and breast cancer susceptibility (P < 0.05). Under the dominant inheritance model, DROSHA rs642321 polymorphism was significantly associated with increased risk of breast cancer (OR: 6.091; 95% CI: 3.291-11.26; P = 0.0001). Our findings demonstrated that DROSHA rs642321 T allele can contribute to the development of breast cancer (OR: 3.125; 95% CI: 1.984-4.923; P = 0.0001). We also found that GTC and GTT haplotypes conferred significant risk for breast cancer (OR: 2.367; 95% CI: 1.453-3.856; P = 0.0001 and OR: 7.944; 95% CI: 2.073-30.43; P = 0.0001, respectively). CONCLUSIONS These results provide the first evidence that DROSHA rs642321 polymorphism is associated with increased risk of breast cancer. However, further studies are needed to firmly validate these findings.
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Affiliation(s)
- Setareh Taghipour Kamalabad
- Department of Genetics, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran
| | - Zahra Zamanzadeh
- Department of Genetics, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran
| | - Halimeh Rezaei
- Department of Cell and Molecular Biology & Microbiology, Faculty of Science and Technology, University of Isfahan, Isfahan, Iran
| | | | - Morteza Abkar
- Department of Genetics, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran
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Liu X, Meng X, Peng X, Yao Q, Zhu F, Ding Z, Sun H, Liu X, Li D, Lu Y, Tang H, Li B, Peng Z. Impaired AGO2/miR-185-3p/NRP1 axis promotes colorectal cancer metastasis. Cell Death Dis 2021; 12:390. [PMID: 33846300 PMCID: PMC8042018 DOI: 10.1038/s41419-021-03672-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023]
Abstract
Increasing evidence suggests that global downregulation of miRNA expression is a hallmark of human cancer, potentially due to defects in the miRNA processing machinery. In this study, we found that the protein expression of Argonaute 2 (AGO2), a key regulator of miRNA processing, was downregulated in colorectal cancer (CRC) tissues, which was also consistent with the findings of the Clinical Proteomic Tumor Analysis Consortium (CPTAC). Furthermore, the correlation between the levels of AGO2 and epithelial-mesenchymal transition (EMT) markers (E-cadherin and vimentin) indicated that reduced levels of AGO2 promoted EMT in CRC. Low expression of AGO2 was an indicator of a poor prognosis among CRC patients. Knockdown of AGO2 in CRC cells promoted migration, invasion and metastasis formation in vitro and in vivo but had no influence on proliferation. To provide detailed insight into the regulatory roles of AGO2, we performed integrated transcriptomic, quantitative proteomic and microRNA sequencing (miRNA-seq) analyses of AGO2 knockdown cells and the corresponding wild-type cells and identified neuropilin 1 (NRP1) as a new substrate of AGO2 via miR-185-3p. Our data provided evidence that knockdown of AGO2 resulted in a reduction of miR-185-3p expression, leading to the upregulation of the expression of NRP1, which is a direct target of miR-185-3p, and elevated CRC cell metastatic capacity. Inhibition of NRP1 or treatment with a miR-185-3p mimic successfully rescued the phenotypes of impaired AGO2, which suggested that therapeutically targeting the AGO2/miR-185-3p/NRP1 axis may be a potential treatment approach for CRC.
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Affiliation(s)
- Xisheng Liu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaole Meng
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
| | - Xiao Peng
- Department of Biology, Temple University, Philadelphia, PA, USA
| | - Qianlan Yao
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fangming Zhu
- Department of Microbiology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Zhongyi Ding
- Laboratory Animal Center, Institute Pasteur of Shanghai, University of Chinese Academy of Sciences, Shanghai, China
| | - Hongze Sun
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xueni Liu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dan Li
- Shanghai Institute of Immunology and Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Lu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huamei Tang
- Department of Pathology, Xiang'an Hospital of Xiamen University, Xiamen, China.
| | - Bin Li
- Shanghai Institute of Immunology and Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Zhihai Peng
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China. .,Hepatobiliary and Pancreatic & Organ Transplantation Surgery Department, Xiang'an Hospital of Xiamen University, Xiamen, China.
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Nowak I, Sarshad AA. Argonaute Proteins Take Center Stage in Cancers. Cancers (Basel) 2021; 13:cancers13040788. [PMID: 33668654 PMCID: PMC7918559 DOI: 10.3390/cancers13040788] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary The dysregulation of RNA interference (RNAi) has often been observed in cancers, where the main focus of research has been on the small RNA molecules directing RNAi. In this review, we focus on the activity of Argonaute proteins, central components of RNAi, in tumorigenesis, and also highlight their potential applications in grading tumors and anti-cancer therapies. Abstract Argonaute proteins (AGOs) play crucial roles in RNA-induced silencing complex (RISC) formation and activity. AGOs loaded with small RNA molecules (miRNA or siRNA) either catalyze endoribonucleolytic cleavage of target RNAs or recruit factors responsible for translational silencing and target destabilization. miRNAs are well characterized and broadly studied in tumorigenesis; nevertheless, the functions of the AGOs in cancers have lagged behind. Here, we discuss the current state of knowledge on the role of AGOs in tumorigenesis, highlighting canonical and non-canonical functions of AGOs in cancer cells, as well as the biomarker potential of AGO expression in different of tumor types. Furthermore, we point to the possible application of the AGOs in development of novel therapeutic approaches.
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Affiliation(s)
- Iwona Nowak
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden;
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Aishe A. Sarshad
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden;
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, 405 30 Gothenburg, Sweden
- Correspondence:
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Galka-Marciniak P, Urbanek-Trzeciak M, Nawrocka P, Kozlowski P. A pan-cancer atlas of somatic mutations in miRNA biogenesis genes. Nucleic Acids Res 2021; 49:601-620. [PMID: 33406242 PMCID: PMC7826265 DOI: 10.1093/nar/gkaa1223] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/28/2020] [Accepted: 12/04/2020] [Indexed: 02/07/2023] Open
Abstract
It is a well-known and intensively studied phenomenon that the levels of many miRNAs are differentiated in cancer. miRNA biogenesis and functional expression are complex processes orchestrated by many proteins cumulatively called miRNA biogenesis proteins. To characterize cancer somatic mutations in the miRNA biogenesis genes and investigate their potential impact on the levels of miRNAs, we analyzed whole-exome sequencing datasets of over 10 000 cancer/normal sample pairs deposited within the TCGA repository. We identified and characterized over 3600 somatic mutations in 29 miRNA biogenesis genes and showed that some of the genes are overmutated in specific cancers and/or have recurrent hotspot mutations (e.g. SMAD4 in PAAD, COAD and READ; DICER1 in UCEC; PRKRA in OV and LIN28B in SKCM). We identified a list of miRNAs whose level is affected by particular types of mutations in either SMAD4, SMAD2 or DICER1 and showed that hotspot mutations in the RNase domains in DICER1 not only decrease the level of 5p-miRNAs but also increase the level of 3p-miRNAs, including many well-known cancer-related miRNAs. We also showed an association of the mutations with patient survival. Eventually, we created an atlas/compendium of miRNA biogenesis alterations providing a useful resource for different aspects of biomedical research.
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Affiliation(s)
| | | | | | - Piotr Kozlowski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
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Vecoli C, Borghini A, Turchi S, Mercuri A, Andreassi MG. Genetic polymorphisms of miRNA machinery genes in bicuspid aortic valve and associated aortopathy. Per Med 2020; 18:21-29. [PMID: 33124523 DOI: 10.2217/pme-2020-0082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Aim: SNPs in miRNA machinery genes may affect miRNA function by impacting their biogenesis. Here, we investigated the association between three SNPs in miRNA machinery genes (DICER rs1057035, DROSHA rs10719 and XPO5 rs11077) and bicuspid aortic valve (BAV). Materials & methods: Three polymorphisms were analyzed in 177 BAV patients and 414 healthy subjects by using a TaqMan®SNP assay. Results: The frequencies of XPO5 rs11077 genotype were significantly different between BAV patients and controls (p = 0.022). On multivariate logistic regression analysis, the XPO5 rs11077 C allele resulted a significant predictor of BAV (odds ratioadjusted = 0.65; CI: 0.42-0.98; p = 0.047). Conclusion: The XPO5 rs11077 SNP was associated with a decreased BAV risk supporting the causative role of miRNAs in aortic valve development.
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NGUYEN TTN, TRAN MTH, NGUYEN VTL, NGUYEN UDP, NGUYEN GDT, HUYNH LH, NGUYEN HT. Single nucleotide polymorphisms in microRNAs action as biomarkers for breast cancer. Turk J Biol 2020; 44:284-294. [PMID: 33110366 PMCID: PMC7585164 DOI: 10.3906/biy-2004-78] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/10/2020] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs (miRNAs) have been recently described as small noncoding RNAs that are involved in numerous crucial physiological processes, such as cell cycles, differentiation, development, and metabolism. Thus, dysregulation of these molecules could lead to several severe disorders, including breast cancer (BC). Ongoing investigations in malignant growth diagnostics have distinguished miRNAs as promising disease biomarkers. As with any other mRNAs, single nucleotide polymorphisms (SNPs) in DNA sequence encoding for miRNA (miR-SNPs) indeed lead to potential changes in the function of miRNA. In this study, miR-SNPs located in different miRNA sequence regions, which have been associated with BC in different ways, and the potential mechanisms of how these miR-SNPs develop the risk of the disease were discussed.
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Affiliation(s)
- Thanh Thi Ngoc NGUYEN
- Department of Physiology and Animal Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh CityVietnam
- Vietnam National University, Ho Chi Minh CityVietnam
| | - Minh Thi Hong TRAN
- Department of Physiology and Animal Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh CityVietnam
- Vietnam National University, Ho Chi Minh CityVietnam
| | - Vy Thi Lan NGUYEN
- Department of Physiology and Animal Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh CityVietnam
- Vietnam National University, Ho Chi Minh CityVietnam
| | - Uyen Doan Phuong NGUYEN
- Department of Physiology and Animal Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh CityVietnam
- Vietnam National University, Ho Chi Minh CityVietnam
| | - Giang Dien Thanh NGUYEN
- Department of Physiology and Animal Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh CityVietnam
- Vietnam National University, Ho Chi Minh CityVietnam
| | - Luan Huu HUYNH
- Department of Physiology and Animal Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh CityVietnam
- Vietnam National University, Ho Chi Minh CityVietnam
| | - Hue Thi NGUYEN
- Department of Physiology and Animal Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh CityVietnam
- Vietnam National University, Ho Chi Minh CityVietnam
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From the Argonauts Mythological Sailors to the Argonautes RNA-Silencing Navigators: Their Emerging Roles in Human-Cell Pathologies. Int J Mol Sci 2020; 21:ijms21114007. [PMID: 32503341 PMCID: PMC7312461 DOI: 10.3390/ijms21114007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/01/2020] [Accepted: 06/01/2020] [Indexed: 12/27/2022] Open
Abstract
Regulation of gene expression has emerged as a fundamental element of transcript homeostasis. Key effectors in this process are the Argonautes (AGOs), highly specialized RNA-binding proteins (RBPs) that form complexes, such as the RNA-Induced Silencing Complex (RISC). AGOs dictate post-transcriptional gene-silencing by directly loading small RNAs and repressing their mRNA targets through small RNA-sequence complementarity. The four human highly-conserved family-members (AGO1, AGO2, AGO3, and AGO4) demonstrate multi-faceted and versatile roles in transcriptome’s stability, plasticity, and functionality. The post-translational modifications of AGOs in critical amino acid residues, the nucleotide polymorphisms and mutations, and the deregulation of expression and interactions are tightly associated with aberrant activities, which are observed in a wide spectrum of pathologies. Through constantly accumulating information, the AGOs’ fundamental engagement in multiple human diseases has recently emerged. The present review examines new insights into AGO-driven pathology and AGO-deregulation patterns in a variety of diseases such as in viral infections and propagations, autoimmune diseases, cancers, metabolic deficiencies, neuronal disorders, and human infertility. Altogether, AGO seems to be a crucial contributor to pathogenesis and its targeting may serve as a novel and powerful therapeutic tool for the successful management of diverse human diseases in the clinic.
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Mentis AFA, Dardiotis E, Romas NA, Papavassiliou AG. PIWI family proteins as prognostic markers in cancer: a systematic review and meta-analysis. Cell Mol Life Sci 2020; 77:2289-2314. [PMID: 31814070 PMCID: PMC11104808 DOI: 10.1007/s00018-019-03403-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/26/2019] [Accepted: 11/28/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND P-element-induced-wimpy-testis-(PIWI)-like proteins are implicated in germ cells' regulation and detected in numerous cancer types. In this meta-analysis, we aimed to associate, for the first time, the prognosis in cancer patients with intratumoral expression of PIWI family proteins. METHODS PubMed, Embase, and Web of Knowledge databases were searched, and studies investigating the association between intratumoral mRNA or protein expression of different PIWI family proteins and survival, metastasis, or recurrence of various cancer types were reviewed. Study qualities were assessed using the REMARK criteria. Studies' heterogeneity was evaluated using I2 index and Cochran Q test. Publication bias was assessed by funnel plots and Egger's regression. Pooled hazard ratios (HR) with 95% confidence intervals (95% CIs) were calculated for different PIWI family proteins separately. Specifically, log of calculated HR was pooled using random-effects model. RESULTS Twenty-six studies (4299 participants) were included. The pooled HR of mortality in high versus low expression of PIWIL1, PIWIL2, and PIWIL4 was 1.87 (95% CI: 1.31-2.66, p < 0.05), 1.09 (95% CI: 0.58-2.07, p = 0.79), and 0.44 (95% CI: 0.25-0.76, p < 0.05), respectively. The pooled HR of recurrence in high versus low expression of PIWIL1 and PIWIL2 was 1.72 (95% CI: 1.20-2.49, p < 0.05) and 1.98 (95% CI: 0.65-5.98, p = 0.23), respectively. CONCLUSIONS Highly variable results were observed for different cancer types. Higher PIWIL1 and lower piwil4 and PIWIL4 expression levels could potentially indicate worse prognosis in cancer. These proteins' expressions could be used for personalized prognosis and treatment in the future.
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Affiliation(s)
- Alexios-Fotios A Mentis
- Public Health Laboratories, Hellenic Pasteur Institute, Athens, Greece
- Department of Microbiology, University Hospital of Thessaly, Larissa, Greece
| | | | - Nicholas A Romas
- Department of Urology, Columbia University Medical Center, Vagelos College of Physicians and Surgeons, New York, USA
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 M. Asias Street - Bldg. 16, 11527, Athens, Greece.
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14
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Fawzy MS, Toraih EA, Alelwani W, Kattan SW, Alnajeebi AM, Hassan R. The prognostic value of microRNA-biogenesis genes Argonaute 1 and 2 variants in breast cancer patients. Am J Transl Res 2020; 12:1994-2006. [PMID: 32509194 PMCID: PMC7270005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 04/18/2020] [Indexed: 06/11/2023]
Abstract
MicroRNA machinery genes Argonaute 1 (AGO1) and 2 (AGO2) are associated with several hallmarks of cancer. They play a key role in transcriptomic silencing, regulation of the immune system, cell differentiation, and angiogenesis processes. The present pilot study aims to explore the impact of genetic variants rs636832 and rs2977490 of AGO1 and AGO2, respectively, on breast cancer (BC) risk in a sample of Mediterranean population. TaqMan genotyping assay of 93 consecutive breast cancer female patients and age- as well as ethnicity-matched controls, was done by Real-Time allele discrimination polymerase chain reaction. Association with the available clinical, histopathological and immunohistochemistry assessments was applied. In silico data analysis was also executed. Although allele and genotype frequencies distribution of both study variants were comparable in BC and healthy control cohorts, AGO1*G variant conferred a significant BC risk under recessive model [adjusted odds ratio (95% confidence interval); 4.90 (1.03-23.39), P = 0.024], and was significantly associated with lymph node infiltration (P = 0.037), distant metastasis (P = 0.019), advanced clinical stage (P < 0.001), recurrence (P = 0.032), and shorter overall survival (P = 0.001). Furthermore, AGO2*G/G genotype showed an association with poor pathological grade (P = 0.029). Our results suggested for the first time that rs636832 and rs2977490 variants of the miRNA-machinery genes AGO1 and 2, respectively, may impact susceptibility and/or clinical outcomes of BC patients in the study population.
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Affiliation(s)
- Manal S Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal UniversityIsmailia, Egypt
- Department of Biochemistry, Faculty of Medicine, Northern Border UniversityArar, Saudi Arabia
| | - Eman A Toraih
- Department of Surgery, Tulane University, School of MedicineNew Orleans, Louisiana, USA
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal UniversityIsmailia, Egypt
| | - Walla Alelwani
- Department of Biochemistry, College of Science, University of JeddahJeddah, Saudi Arabia
| | - Shahad W Kattan
- Department of Medical Laboratory, College of Applied Medical Sciences, Taibah UniversityYanbu, Saudi Arabia
| | - Afnan M Alnajeebi
- Department of Biochemistry, College of Science, University of JeddahJeddah, Saudi Arabia
| | - Ranya Hassan
- Department of Clinical Pathology, Faculty of Medicine, Suez Canal UniversityIsmailia, Egypt
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The association of AGO1 (rs595961G>A, rs636832A>G) and AGO2 (rs11996715C>A, rs2292779C>G, rs4961280C>A) polymorphisms and risk of recurrent implantation failure. Biosci Rep 2019; 39:221135. [PMID: 31724726 PMCID: PMC6881209 DOI: 10.1042/bsr20190342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 10/12/2019] [Accepted: 11/13/2019] [Indexed: 01/18/2023] Open
Abstract
Recurrent implantation failure (RIF) is a common reproductive clinical condition treated by fertility specialists at in vitro fertilization (IVF) clinics. Several factors affect embryo implantation including the age of the female, the quality of embryos and the sperm, genetics, immunologic factors. Here, we investigated the association of Argonaute 1 (AGO1) and Argonaute 2 (AGO2) polymorphisms and RIF. We collected blood samples from 167 patients with RIF and 211 controls. Genetic polymorphisms were detected by polymerase chain reaction (PCR) – restriction fragment length polymorphism analysis and real-time PCR. We found that the AGO2 rs4961280C>A polymorphism (adjusted odds ratio [AOR] = 1.984; P = 0.023) was significantly associated with RIF. Furthermore, in RIF patients with three or more consecutive implantation failure, the AGO2 rs4961280C>A CA genotype (AOR = 2.133; P = 0.013) and dominant model (AOR = 2.272; P = 0.006) were both significantly associated with prevalence of RIF. An analysis of variance revealed that patients with the AGO2 rs2292779C>G genotypes (CC: 6.52 ± 2.55; CG: 7.46 ± 3.02; GG: 8.42 ± 2.74; P = 0.044) and the dominant model (CC: 6.52 ± 2.55; CG+GG: 7.70 ± 2.97; P = 0.029) exhibited significantly increased white blood cell levels. Furthermore, patients with the AGO1 rs595961G>A dominant model (GG: 36.81 ± 8.69; GA+AA: 31.58 ± 9.17; P = 0.006) and the AGO2 rs4961280C>A recessive model (CC+CA: 35.42 ± 8.77; AA: 22.00 ± 4.24; P = 0.035) exhibited a significantly decreased number of CD4+ helper T cells. Our study showed that AGO1 and AGO2 polymorphisms are associated with the prevalence of RIF. Hence, the results suggest that variations in AGO1 and AGO2 genotypes may be useful clinical biomarkers for the development and prognosis of RIF.
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Aisina D, Niyazova R, Atambayeva S, Ivashchenko A. Prediction of clusters of miRNA binding sites in mRNA candidate genes of breast cancer subtypes. PeerJ 2019; 7:e8049. [PMID: 31741798 PMCID: PMC6858813 DOI: 10.7717/peerj.8049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 10/16/2019] [Indexed: 12/14/2022] Open
Abstract
The development of breast cancer (BC) subtypes is controlled by distinct sets of candidate genes, and the expression of these genes is regulated by the binding of their mRNAs with miRNAs. Predicting miRNA associations and target genes is thus essential when studying breast cancer. The MirTarget program identifies the initiation of miRNA binding to mRNA, the localization of miRNA binding sites in mRNA regions, and the free energy from the binding of all miRNA nucleotides with mRNA. Candidate gene mRNAs have clusters (miRNA binding sites with overlapping nucleotide sequences). mRNAs of EPOR, MAZ and NISCH candidate genes of the HER2 subtype have clusters, and there are four clusters in mRNAs of MAZ, BRCA2 and CDK6 genes. Candidate genes of the triple-negative subtype are targets for multiple miRNAs. There are 11 sites in CBL mRNA, five sites in MMP2 mRNA, and RAB5A mRNA contains two clusters in each of the three sites. In SFN mRNA, there are two clusters in three sites, and one cluster in 21 sites. Candidate genes of luminal A and B subtypes are targets for miRNAs: there are 21 sites in FOXA1 mRNA and 15 sites in HMGA2 mRNA. There are clusters of five sites in mRNAs of ITGB1 and SOX4 genes. Clusters of eight sites and 10 sites are identified in mRNAs of SMAD3 and TGFB1 genes, respectively. Organizing miRNA binding sites into clusters reduces the proportion of nucleotide binding sites in mRNAs. This overlapping of miRNA binding sites creates a competition among miRNAs for a binding site. From 6,272 miRNAs studied, only 29 miRNAs from miRBase and 88 novel miRNAs had binding sites in clusters of target gene mRNA in breast cancer. We propose using associations of miRNAs and their target genes as markers in breast cancer subtype diagnosis.
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Affiliation(s)
- Dana Aisina
- Department of Biotechnology, SRI of Biology and Biotechnology Problems, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Raigul Niyazova
- Department of Biotechnology, SRI of Biology and Biotechnology Problems, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Shara Atambayeva
- Department of Biotechnology, SRI of Biology and Biotechnology Problems, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Anatoliy Ivashchenko
- Department of Biotechnology, SRI of Biology and Biotechnology Problems, Al-Farabi Kazakh National University, Almaty, Kazakhstan
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17
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Single nucleotide polymorphisms in piRNA-pathway genes: an insight into genetic determinants of human diseases. Mol Genet Genomics 2019; 295:1-12. [DOI: 10.1007/s00438-019-01612-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 09/22/2019] [Indexed: 12/23/2022]
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18
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Casey MC, Prakash A, Holian E, McGuire A, Kalinina O, Shalaby A, Curran C, Webber M, Callagy G, Bourke E, Kerin MJ, Brown JA. Quantifying Argonaute 2 (Ago2) expression to stratify breast cancer. BMC Cancer 2019; 19:712. [PMID: 31324173 PMCID: PMC6642579 DOI: 10.1186/s12885-019-5884-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 06/26/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Argonaute-2 (Ago2) is an essential component of microRNA biogenesis implicated in tumourigenesis. However Ago2 expression and localisation in breast cancer remains undetermined. The aim was to define Ago2 expression (mRNA and protein) and localisation in breast cancer, and investigate associations with clinicopathological details. METHODS Ago2 protein was stained in breast cancer cell lines and tissue microarrays (TMAs), with intensity and localization assessed. Staining intensity was correlated with clinicopathological details. Using independent databases, Ago2 mRNA expression and gene alterations in breast cancer were investigated. RESULTS In the breast cancer TMAs, 4 distinct staining intensities were observed (Negative, Weak, Moderate, Strong), with 64.2% of samples stained weak or negatively for Ago2 protein. An association was found between strong Ago2 staining and, the Her2 positive or basal subtypes, and between Ago2 intensity and receptor status (Estrogen or Progesterone). In tumours Ago2 mRNA expression correlated with reduced relapse free survival. Conversely, Ago2 mRNA was expressed significantly lower in SK-BR-3 (HER2 positive) and BT-20 (Basal/Triple negative) cell lines. Interestingly, high levels of Ago2 gene amplification (10-27%) were observed in breast cancer across multiple patient datasets. Importantly, knowledge of Ago2 expression improves predictions of breast cancer subtype by 20%, ER status by 15.7% and PR status by 17.5%. CONCLUSIONS Quantification of Ago2 improves the stratification of breast cancer and suggests a differential role for Ago2 in breast cancer subtypes, based on levels and cellular localisation. Further investigation of the mechanisms affecting Ago2 dysregulation will reveal insights into the molecular differences underpinning breast cancer subtypes.
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Affiliation(s)
- M C Casey
- Discipline of Surgery, School of Medicine, Lambe institute for Translational Research, National University of Ireland, Galway, Ireland
| | - A Prakash
- Discipline of Pathology, School of Medicine, Lambe Institute for Translational Research, National University of Ireland, Galway, Ireland
| | - E Holian
- School of Mathematics, Statistics and Applied Mathematics, National University of Ireland, Galway, Ireland
| | - A McGuire
- Discipline of Surgery, School of Medicine, Lambe institute for Translational Research, National University of Ireland, Galway, Ireland
| | - O Kalinina
- School of Mathematics, Statistics and Applied Mathematics, National University of Ireland, Galway, Ireland
| | - A Shalaby
- Discipline of Pathology, School of Medicine, Lambe Institute for Translational Research, National University of Ireland, Galway, Ireland
| | - C Curran
- Discipline of Surgery, School of Medicine, Lambe institute for Translational Research, National University of Ireland, Galway, Ireland
| | - M Webber
- Discipline of Pathology, School of Medicine, Lambe Institute for Translational Research, National University of Ireland, Galway, Ireland
| | - G Callagy
- Discipline of Pathology, School of Medicine, Lambe Institute for Translational Research, National University of Ireland, Galway, Ireland
| | - E Bourke
- Discipline of Pathology, School of Medicine, Lambe Institute for Translational Research, National University of Ireland, Galway, Ireland
| | - M J Kerin
- Discipline of Surgery, School of Medicine, Lambe institute for Translational Research, National University of Ireland, Galway, Ireland
| | - J A Brown
- Discipline of Surgery, School of Medicine, Lambe institute for Translational Research, National University of Ireland, Galway, Ireland.
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19
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Association between Genetic Polymorphisms in microRNA Machinery Genes and Risk of Papillary Thyroid Carcinoma. Pathol Oncol Res 2019; 26:1235-1241. [DOI: 10.1007/s12253-019-00688-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 06/16/2019] [Indexed: 01/20/2023]
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20
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Malhotra P, Read GH, Weidhaas JB. Breast Cancer and miR-SNPs: The Importance of miR Germ-Line Genetics. Noncoding RNA 2019; 5:ncrna5010027. [PMID: 30897768 PMCID: PMC6468861 DOI: 10.3390/ncrna5010027] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/08/2019] [Accepted: 03/15/2019] [Indexed: 12/11/2022] Open
Abstract
Recent studies in cancer diagnostics have identified microRNAs (miRNAs) as promising cancer biomarkers. Single nucleotide polymorphisms (SNPs) in miRNA binding sites, seed regions, and coding sequences can help predict breast cancer risk, aggressiveness, response to stimuli, and prognosis. This review also documents significant known miR-SNPs in miRNA biogenesis genes and their effects on gene regulation in breast cancer, taking into account the genetic background and ethnicity of the sampled populations. When applicable, miR-SNPs are evaluated in the context of other patient factors, including mutations, hormonal status, and demographics. Given the power of miR-SNPs to predict patient cancer risk, prognosis, and outcomes, further study of miR-SNPs is warranted to improve efforts towards personalized medicine.
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Affiliation(s)
- Poonam Malhotra
- Department of Radiation Oncology, David Geffen School of Medicine, University of California, Los Angeles, CA 90001, USA.
| | - Graham H Read
- Department of Radiation Oncology, David Geffen School of Medicine, University of California, Los Angeles, CA 90001, USA.
| | - Joanne B Weidhaas
- Department of Radiation Oncology, David Geffen School of Medicine, University of California, Los Angeles, CA 90001, USA.
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21
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Sun Y, Duan F, Liu W, Peng Z, Dai L, Feng Y, Yang Z, Shang J, Wang K. Comprehensive Assessment of the Relationship Between MicroRNA-124 and the Prognostic Significance of Cancer. Front Oncol 2018; 8:252. [PMID: 30062087 PMCID: PMC6055006 DOI: 10.3389/fonc.2018.00252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/21/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Numerous studies have demonstrated the presence of microRNA-124 abnormalities involving gene expression, methylation, and single nucleotide polymorphism (SNP) in multiple and diverse cancers, but the prognostic value of these abnormalities in cancer remains inconclusive. OBJECTIVE The aim of this study is to determine the prognostic value of miR-124 in cancer. METHODS We scrutinized the electronic databases and estimate the association between miR-124 expression, methylation and single nucleotide polymorphisms (SNPs), and prognosis in cancers. The pooled hazard ratios with 95% confidence intervals (CIs) for overall survival (OS), and disease-free survival/recurrence-free survival (RFS)/progression-free survival (PFS) were calculated to estimate the effects of miR-124 expression, methylation, and SNPs on cancer prognosis. The Quality in Prognosis Studies and Newcastle-Ottawa Scale were utilized to assess the quality of included studies. RESULTS A total of 20 studies involving 3,574 participants were analyzed in evidence synthesis. Our findings showed that the low expression of miR-124 was significantly associated with poor OS (HR = 2.37, 95% CI: 1.91-2.94, P = 0.00; HR = 3.10, 95% CI: 2.04-4.70, P = 0.00) and PFS/RFS (HR = 2.21, 95% CI: 1.50-3.26, P = 0.00; HR = 2.12, 95% CI: 1.20-3.74, P = 0.00). The hyper-methylation of miR-124 was associated with poor OS (HR = 2.09, 95% CI: 1.48-2.95, P = 0.00) and PFS (HR = 3.70, 95% CI: 1.72-7.97, P = 0.00) (Table 3). The patients carrying with Allele C of miR-124 rs5315649 had a worse OS (HR = 1.50, 95% CI: 1.09-2.07, P = 0.00) and PFS (HR = 1.67, 95% CI: 1.20-2.33, P = 0.00) than the carriers with Allele G. CONCLUSION The low expression and hyper-methylation of miR-124 was strongly associated with poor prognosis, and genetic variations of miR-124 rs531564 affected prognosis in cancer patients.
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Affiliation(s)
- Yadong Sun
- Department of Breast and Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Fujiao Duan
- Department of Breast and Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Weigang Liu
- Medical Record Statistics Office, Affiliated Hospital of Hebei University of Engineering, Handan, China
| | - Zhen Peng
- Department of Infectious Disease, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Liping Dai
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yajing Feng
- Department of Nosocomial Infection Management, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhenxing Yang
- Department of Breast and Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Jia Shang
- Department of Infectious Disease, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Kaijuan Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
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22
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Salgado E, Bian X, Feng A, Shim H, Liang Z. HDAC9 overexpression confers invasive and angiogenic potential to triple negative breast cancer cells via modulating microRNA-206. Biochem Biophys Res Commun 2018; 503:1087-1091. [PMID: 29936177 DOI: 10.1016/j.bbrc.2018.06.120] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 06/20/2018] [Indexed: 12/31/2022]
Abstract
Triple negative breast cancer (TNBC) is among the most aggressive breast cancer subtypes with poor prognosis. The purpose of this study is to better understand the molecular basis of TNBC as well as develop new therapeutic strategies. Our results demonstrate that HDAC9 is overexpressed in TNBC compared to non-TNBC cell lines and tissues and is inversely proportional with miR-206 expression levels. We show that HDAC9 selective inhibition blocked the invasion of TNBC cells in vitro and repressed the angiogenesis shown via in vivo Matrigel plug assays. Subsequent HDAC9 siRNA knockdown was then shown to restore miR-206 while also decreasing VEGF and MAPK3 levels. Furthermore, the inhibition of miR-206 neutralized the action of HDAC9 siRNA on decreasing VEGF and MAPK3 levels. This study highlights HDAC9 as a mediator of cell invasion and angiogenesis in TNBC cells through VEGF and MAPK3 by modulating miR-206 expression and suggests that selective inhibition of HDAC9 may be an efficient route for TNBC therapy.
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Affiliation(s)
- Eric Salgado
- Molecular and Systems Pharmacology Graduate Studies Program, Emory University, Atlanta, GA, 30322, USA; Department of Radiation Oncology, Emory University, Atlanta, GA, 30322, USA
| | - Xuehai Bian
- Department of Radiation Oncology, Emory University, Atlanta, GA, 30322, USA; Department of Thyroid Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Amber Feng
- Department of Radiation Oncology, Emory University, Atlanta, GA, 30322, USA
| | - Hyunsuk Shim
- Molecular and Systems Pharmacology Graduate Studies Program, Emory University, Atlanta, GA, 30322, USA; Department of Radiation Oncology, Emory University, Atlanta, GA, 30322, USA; Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA.
| | - Zhongxing Liang
- Department of Radiation Oncology, Emory University, Atlanta, GA, 30322, USA; Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA.
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Bermisheva MA, Takhirova ZR, Gilyazova IR, Khusnutdinova EK. MicroRNA Biogenesis Pathway Gene Polymorphisms Are Associated with Breast Cancer Risk. RUSS J GENET+ 2018. [DOI: 10.1134/s1022795418040051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Tokiyoshi E, Watanabe M, Inoue N, Hidaka Y, Iwatani Y. Polymorphisms and expression of genes encoding Argonautes 1 and 2 in autoimmune thyroid diseases. Autoimmunity 2017; 51:35-42. [PMID: 29256262 DOI: 10.1080/08916934.2017.1416468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The microRNA (miRNA) biogenesis pathway is regulated by specific proteins and enzymes, including Dicer, Drosha, DGCR8, Exportin 5 and the Argonaute (AGO) family. In this study, we investigated the AGO family, which is the primary component of RISC (RNA-induced silencing complex) and directly binds to microRNA. We examined the association of polymorphisms in AGO family genes with AGO expression and with the development and prognosis of autoimmune thyroid diseases. We genotyped AGO1 rs636832A/G, AGO2 rs7005286C/T, AGO2 rs11166985A/G and AGO2 rs2292779C/G polymorphisms in 184 Graves' disease (GD) patients, 195 Hashimoto's disease (HD) patients and 122 healthy volunteers using the polymerase chain reaction-restriction fragment length polymorphism method. We also examined the expression of AGO1 and AGO2 mRNAs in peripheral blood mononuclear cells (PBMC) obtained from 52 GD patients, 41 HD patients, and 25 healthy volunteers using quantitative RT-PCR methods. The G allele of AGO1 rs636832 and the A allele of AGO2 rs11166985 polymorphisms were significantly more frequent in GD patients than in healthy controls. The A allele of AGO2 rs11166985 was also significantly more frequent in intractable GD patients than in controls. The C carrier (CC + CG genotypes) and C allele of AGO2 rs2292779 polymorphism were significantly more frequent in intractable GD patients than in patients with GD in remission. Expression of AGO1 mRNA in PBMC was significantly higher in AITD patient than in controls, and that of AGO2 mRNA in PBMC was significantly higher in intractable GD patients than in patients with GD in remission. Furthermore, the expression levels of both the AGO1 and AGO2 genes were significantly correlated with the proportions of Th17 cells in PBMC. In conclusion, the polymorphisms of the AGO1 and AGO2 genes, the expression levels of which correlated with the proportion of Th17 cells, were associated with the development and prognosis of GD. The AGO2 rs2292779 C carrier and C allele were associated with the intractability of GD.
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Affiliation(s)
- Ena Tokiyoshi
- a Department of Biomedical Informatics, Division of Health Sciences , Osaka University Graduate School of Medicine , Suita , Osaka , Japan
| | - Mikio Watanabe
- a Department of Biomedical Informatics, Division of Health Sciences , Osaka University Graduate School of Medicine , Suita , Osaka , Japan
| | - Naoya Inoue
- a Department of Biomedical Informatics, Division of Health Sciences , Osaka University Graduate School of Medicine , Suita , Osaka , Japan.,b Laboratory for Clinical Investigation , Osaka University Hospital , Suita , Osaka , Japan
| | - Yoh Hidaka
- b Laboratory for Clinical Investigation , Osaka University Hospital , Suita , Osaka , Japan
| | - Yoshinori Iwatani
- a Department of Biomedical Informatics, Division of Health Sciences , Osaka University Graduate School of Medicine , Suita , Osaka , Japan
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25
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Wu N, Zhang X, Tian J, Yu S, Qiao Y. Association of GEMIN4 gene polymorphism and the risk of cancer: a meta-analysis. Onco Targets Ther 2017; 10:5263-5271. [PMID: 29138579 PMCID: PMC5679687 DOI: 10.2147/ott.s147204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Gem-associated protein 4 (GEMIN4) gene is a key regulator for the miRNA biogenesis processes. Recent studies have demonstrated that some single-nucleotide polymorphisms (SNPs) in GEMIN4 gene are associated with the risk of cancer, but the results are still controversial. Therefore, we conducted a meta-analysis to analyze the association between three major SNPs (rs2740348, rs7813, and rs3744741) in the GEMIN4 gene and the risk of cancer. Relevant articles were searched in Web of Science, PubMed, Cochrane Library, Chinese Wan Fang, and Chinese National Knowledge Infrastructure databases. Pooled odds ratio (OR) with 95% confidence interval (CI) was calculated to quantitatively estimate the association. Publication bias and sensitivity analyses were undertaken to evaluate the stability of the results. Overall, the pooled results showed that rs2740348 involving 3,604 cases and 3,770 controls was significantly associated with increased cancer risk (GG vs GC/CC: OR =1.16, 95% CI =1.05-1.29, P=0.004) and rs7813 involving 4,729 cases and 4,562 controls was also related to increased cancer risk (TT vs TC/CC: OR =1.12, 95% CI =1.03-1.22, P=0.009). However, there was no significant association between rs3744741 and cancer risk under overall genetic models. In conclusion, our study has demonstrated that rs2740348 and rs7813 are associated with increased risk of cancer, and they may be new biomarkers for predicting cancer risk.
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Affiliation(s)
- Nan Wu
- The Core Laboratory for Public Health Science and Practice, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xiaowei Zhang
- The Core Laboratory for Public Health Science and Practice, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jinlong Tian
- The Core Laboratory for Public Health Science and Practice, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Shuang Yu
- The Core Laboratory for Public Health Science and Practice, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ying Qiao
- The Core Laboratory for Public Health Science and Practice, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
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Wang W, Yuan P, Yu D, Du F, Zhu A, Li Q, Zhang P, Lin D, Xu B. A single-nucleotide polymorphism in the 3'-UTR region of the adipocyte fatty acid binding protein 4 gene is associated with prognosis of triple-negative breast cancer. Oncotarget 2017; 7:18984-98. [PMID: 26959740 PMCID: PMC4951346 DOI: 10.18632/oncotarget.7920] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 01/29/2016] [Indexed: 01/22/2023] Open
Abstract
Triple-negative breast cancer (TNBC) is a subtype of breast cancer with poor prognosis and high heterogeneity. The aim of this study was to screen patients for single-nucleotide polymorphisms (SNPs) associated with the prognosis of TNBC. Database-derived SNPs (NextBio, Ensembl, NCBI and MirSNP) located in the 3′-untranslated regions (3′-UTRs) of genes that are differentially expressed in breast cancer were selected. The possible associations between 111 SNPs and progression risk among 323 TNBC patients were investigated using a two-step case-control study with a discovery cohort (n=162) and a validation cohort (n=161). We identified the rs1054135 SNP in the adipocyte fatty acid binding protein 4 (FABP4) gene as a predictor of TNBC recurrence. The G allele of rs1054135 was associated with a reduced risk of disease progression as well as a prolonged disease-free survival time (DFS), with a hazard ratio (HR) for recurrence in the combined sample of 0.269 [95%CI: 0.098−0.735;P=0.001]. Notably, for individuals having the rs1054135 SNP with the AA/AG genotype, the magnitude of increased tumour recurrence risk for overweight patients (BMI≥25kg/m2) was significantly elevated (HR2.53; 95%CI: 1.06–6.03). Immunohistochemical staining of adipocytes adjacent to TNBC tissues showed that the expression level of FABP4 was statistically significantly lower in patients with the rs1054135-GG genotype and those in the disease-free group (P=0.0004 and P=0.0091, respectively). These results suggested that the expression of a lipid metabolism-related gene and an important SNP in the 3′-UTR of FABP4 are associated with TNBC prognosis, which may aid in the screening of high-risk patients with TNBC recurrence and the development of novel chemotherapeutic agents.
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Affiliation(s)
- Wenmiao Wang
- Department of Medical Oncology, Cancer Institute and Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P.R. China.,Phase I Clinical Trial Center, Beijing Shijitan Hospital, Capital Medical University, The 9th Clinical College, Beijing, P.R. China
| | - Peng Yuan
- Department of Medical Oncology, Cancer Institute and Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P.R. China
| | - Dianke Yu
- Department of Etiology and Carcinogenesis, Cancer Institute and Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, P.R. China
| | - Feng Du
- Department of Medical Oncology, Cancer Institute and Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P.R. China
| | - Anjie Zhu
- Department of Medical Oncology, Cancer Institute and Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P.R. China
| | - Qing Li
- Department of Medical Oncology, Cancer Institute and Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P.R. China
| | - Pin Zhang
- Department of Medical Oncology, Cancer Institute and Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P.R. China
| | - Dongxin Lin
- Department of Etiology and Carcinogenesis, Cancer Institute and Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, P.R. China
| | - Binghe Xu
- Department of Medical Oncology, Cancer Institute and Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P.R. China
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Hashemi M, Hasani SS, Naderi M. DROSHA rs642321 Polymorphism Influence Susceptibility to Childhood Acute Lymphoblastic Leukemia: A Preliminary Report. Indian J Med Paediatr Oncol 2017; 38:416-419. [PMID: 29333004 PMCID: PMC5759056 DOI: 10.4103/ijmpo.ijmpo_4_15] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Introduction: It has been well known that the microRNA biogenesis is involved in the pathogenesis of various diseases. We investigated the possible association between DROSHA rs642321 variant and risk of acute lymphocytic leukemia (ALL). Materials and Methods: We genotyped 75 children diagnosed with ALL and 115 age- and sex-matched children with no history of cancer of any type (as the control group) by the tetra amplification refractory mutation system-polymerase chain reaction. Results: We found that DROSHA rs642321 C > T variant significantly decreased the risk of ALL in codominant (TT vs. CC: odds ratio [OR] = 0.33, 95% confidence interval [CI] = 0.14–0.80, P = 0.020) and dominant (TT + CT vs. CC: OR = 0.51, 95% CI = 0.27–0.94, P = 0.037) inheritance model tested. The rs642321 T allele was associated with protective against ALL (OR = 0.58, 95% CI = 0.38–0.88, P = 0.011) in comparison with C allele. Conclusion: The study findings revealed that DROSHA rs642321 variant decreased the risk of pediatrics ALL in an Iranian population. Larger sample sizes with different ethnicities are needed to validate our findings.
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Affiliation(s)
- Mohammad Hashemi
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Seyed-Shahaboddin Hasani
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Majid Naderi
- Department of Pediatrics, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
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SNP Variation in MicroRNA Biogenesis Pathway Genes as a New Innovation Strategy for Alzheimer Disease Diagnostics. Alzheimer Dis Assoc Disord 2016; 30:203-9. [DOI: 10.1097/wad.0000000000000135] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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29
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Identification of genetic loci stratified by diabetic status and microRNA related SNPs influencing kidney function in Korean populations. Genes Genomics 2016. [DOI: 10.1007/s13258-016-0411-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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30
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Brücher BLDM, Li Y, Schnabel P, Daumer M, Wallace TJ, Kube R, Zilberstein B, Steele S, Voskuil JLA, Jamall IS. Genomics, microRNA, epigenetics, and proteomics for future diagnosis, treatment and monitoring response in upper GI cancers. Clin Transl Med 2016; 5:13. [PMID: 27053248 PMCID: PMC4823224 DOI: 10.1186/s40169-016-0093-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 03/29/2016] [Indexed: 12/15/2022] Open
Abstract
One major objective for our evolving understanding in the treatment of cancers will be to address how a combination of diagnosis and treatment strategies can be used to integrate patient and tumor variables with an outcome-oriented approach. Such an approach, in a multimodal therapy setting, could identify those patients (1) who should undergo a defined treatment (personalized therapy) (2) in whom modifications of the multimodal therapy due to observed responses might lead to an improvement of the response and/or prognosis (individualized therapy), (3) who might not benefit from a particular toxic treatment regimen, and (4) who could be identified early on and thereby be spared the morbidity associated with such treatments. These strategies could lead in the direction of precision medicine and there is hope of integrating translational molecular data to improve cancer classifications. In order to achieve these goals, it is necessary to understand the key issues in different aspects of biotechnology to anticipate future directions of personalized and individualized diagnosis and multimodal treatment strategies. Providing an overview of translational data in cancers proved to be a challenge as different methods and techniques used to obtain molecular data are used and studies are based on different tumor entities with different tumor biology and prognoses as well as vastly different therapeutic approaches. The pros and cons of the available methodologies and the potential response data in genomics, microRNA, epigenetics and proteomics with a focus on upper gastrointestinal cancers are considered herein to allow for an understanding of where these technologies stand with respect to cancer diagnosis, prognosis and treatment.
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Affiliation(s)
- Björn L. D. M. Brücher
- />Theodor-Billroth-Academy®, Munich, Germany
- />Theodor-Billroth-Academy®, Sacramento, CA USA
- />INCORE, International Consortium of Research Excellence of the Theodor-Billroth-Academy®, Munich, Germany
- />INCORE, International Consortium of Research Excellence of the Theodor-Billroth-Academy®, Sacramento, CA USA
- />Bon Secours Cancer Institute, Richmond, VA USA
- />Department of Surgery, Carl-Thiem-Klinikum, Cottbus, Germany
| | - Yan Li
- />Proteogenomics Research Institute for Systems Medicine, San Diego, CA USA
| | - Philipp Schnabel
- />Institute of Pathology, University of Homburg Saar, Homburg, Germany
| | - Martin Daumer
- />Theodor-Billroth-Academy®, Munich, Germany
- />Theodor-Billroth-Academy®, Sacramento, CA USA
- />INCORE, International Consortium of Research Excellence of the Theodor-Billroth-Academy®, Munich, Germany
- />INCORE, International Consortium of Research Excellence of the Theodor-Billroth-Academy®, Sacramento, CA USA
- />Sylvia Lawry Center for MS Research, Munich, Germany
| | | | - Rainer Kube
- />Department of Surgery, Carl-Thiem-Klinikum, Cottbus, Germany
| | | | - Scott Steele
- />Case Western Reserve University, Cleveland, OH USA
- />Department of Surgery, Madigan Army Medical Center, Tacoma, WA USA
| | | | - Ijaz S. Jamall
- />Theodor-Billroth-Academy®, Munich, Germany
- />Theodor-Billroth-Academy®, Sacramento, CA USA
- />INCORE, International Consortium of Research Excellence of the Theodor-Billroth-Academy®, Munich, Germany
- />INCORE, International Consortium of Research Excellence of the Theodor-Billroth-Academy®, Sacramento, CA USA
- />Risk-Based Decisions, Inc., Sacramento, CA USA
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Weng Y, Chen Y, Chen J, Liu Y, Bao T. RETRACTED ARTICLE: Common genetic variants in microRNA processing machinery genes are associated with risk and survival in patients with osteosarcoma. Mol Genet Genomics 2016. [DOI: 10.1007/s00438-015-1006-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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32
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Casey MC, Sweeney KJ, Brown JAL, Kerin MJ. Exploring circulating micro-RNA in the neoadjuvant treatment of breast cancer. Int J Cancer 2016; 139:12-22. [PMID: 26756433 PMCID: PMC5066681 DOI: 10.1002/ijc.29985] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 11/04/2015] [Accepted: 12/22/2015] [Indexed: 12/18/2022]
Abstract
Breast cancer is the most frequently diagnosed malignancy amongst females worldwide. In recent years the management of this disease has transformed considerably, including the administration of chemotherapy in the neoadjuvant setting. Aside from increasing rates of breast conserving surgery and enabling surgery via tumour burden reduction, use of chemotherapy in the neoadjuvant setting allows monitoring of in vivo tumour response to chemotherapeutics. Currently, there is no effective means of identifying chemotherapeutic responders from non‐responders. Whilst some patients achieve complete pathological response (pCR) to chemotherapy, a good prognostic index, a proportion of patients derive little or no benefit, being exposed to the deleterious effects of systemic treatment without any knowledge of whether they will receive benefit. The identification of predictive and prognostic biomarkers could confer multiple benefits in this setting, specifically the individualization of breast cancer management and more effective administration of chemotherapeutics. In addition, biomarkers could potentially expedite the identification of novel chemotherapeutic agents or increase their efficacy. Micro‐RNAs (miRNAs) are small non‐coding RNA molecules. With their tissue‐specific expression, correlation with clinicopathological prognostic indices and known dysregulation in breast cancer, miRNAs have quickly become an important avenue in the search for novel breast cancer biomarkers. We provide a brief history of breast cancer chemotherapeutics and explore the emerging field of circulating (blood‐borne) miRNAs as breast cancer biomarkers for the neoadjuvant treatment of breast cancer. Established molecular markers of breast cancer are outlined, while the potential role of circulating miRNAs as chemotherapeutic response predictors, prognosticators or potential therapeutic targets is discussed.
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Affiliation(s)
- Máire-Caitlín Casey
- Discipline of Surgery, School of Medicine, National University of Ireland, Galway, Ireland
| | - Karl J Sweeney
- Discipline of Surgery, School of Medicine, National University of Ireland, Galway, Ireland
| | | | - Michael J Kerin
- Discipline of Surgery, School of Medicine, National University of Ireland, Galway, Ireland
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33
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Li P, Meng J, Zhai Y, Zhang H, Yu L, Wang Z, Zhang X, Cao P, Chen X, Han Y, Zhang Y, Chen H, Ling Y, Li Y, Cui Y, Bei JX, Zeng YX, He F, Zhou G. Argonaute 2 and nasopharyngeal carcinoma: a genetic association study and functional analysis. BMC Cancer 2015; 15:862. [PMID: 26545861 PMCID: PMC4636795 DOI: 10.1186/s12885-015-1895-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 11/03/2015] [Indexed: 02/06/2023] Open
Abstract
Background Argonaute 2 (AGO2), a central component of RNA-induced silencing complex, plays critical roles in cancer. We examined whether the single nucleotide polymorphisms (SNPs) of AGO2 were related to the risk of nasopharyngeal carcinoma (NPC). Methods Twenty-five tag SNPs within AGO2 were genotyped in Guangxi population consisting of 855 NPC patients and 1036 controls. The SNPs significantly associated with NPC were further replicated in Guangdong population consisting of 996 NPC patients and 972 controls. Functional experiments were conducted to examine the biologic roles of AGO2 in NPC. Results A significantly increased risk of advanced lymph node metastasis of NPC was identified for the AGO2 rs3928672 GA + AA genotype compared with GG genotype in both the Guangxi and Guangdong populations (combined odd ratio = 2.08, 95 % confidence interval = 1.44-3.01, P = 8.60 × 10−5). Moreover, the AGO2 protein expression levels of rs3928672 GA + AA genotype carriers were higher than the GG genotype carriers in the NPC tissues (P = 0.041), and AGO2 was significantly over-expressed in NPC tissues compared with non-cancerous nasopharyngeal tissues (P = 0.011). In addition, AGO2 knockdown reduced cell proliferation, induced apoptosis, and inhibited migration of NPC cells. Furthermore, gene expression microarray showed that genes altered following AGO2 knockdown were clustered in tumorigenesis and metastasis relevant pathways. Conclusions Our findings suggest that the genetic polymorphism in AGO2 may be a risk factor for the advanced lymph node metastasis of NPC in Chinese populations, and AGO2 acts as an oncogene in the development of NPC. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1895-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Peiyao Li
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Jinfeng Meng
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China. .,Chinese Academy of Medical Sciences & Peking Union Medical College, Institute of Basic Medical Sciences, Beijing, P.R. China.
| | - Yun Zhai
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Hongxing Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Lixia Yu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Zhifu Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Xiaoai Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Pengbo Cao
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Xi Chen
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Yuqing Han
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Yang Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Huipeng Chen
- Laboratory of Microbial Genomics, Beijing Institute of Biotechnology, Beijing, P.R. China.
| | - Yan Ling
- Laboratory of Microbial Genomics, Beijing Institute of Biotechnology, Beijing, P.R. China.
| | - Yuxia Li
- Laboratory of Microbial Genomics, Beijing Institute of Biotechnology, Beijing, P.R. China.
| | - Ying Cui
- Affiliated Cancer Hospital of Guangxi Medical University, Nanning, P.R. China.
| | - Jin-Xin Bei
- State Key Laboratory of Oncology in Southern China, Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China.
| | - Yi-Xin Zeng
- State Key Laboratory of Oncology in Southern China, Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China.
| | - Fuchu He
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
| | - Gangqiao Zhou
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, No. 27, Taiping Road, Haidian District, Beijing, 100850, P.R. China.
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Wu S, Pan Y, Cao S, Xu J, Liang Y, Wang Y, Chen L, Wei Y, Sun C, Zhao W, Hu Z, Ma H, Shen H, Wu J. Genetic variations in DROSHA and DICER and survival of advanced non-small cell lung cancer: a two-stage study in Chinese population. Genes Genomics 2015. [DOI: 10.1007/s13258-015-0286-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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van Schooneveld E, Wildiers H, Vergote I, Vermeulen PB, Dirix LY, Van Laere SJ. Dysregulation of microRNAs in breast cancer and their potential role as prognostic and predictive biomarkers in patient management. Breast Cancer Res 2015; 17:21. [PMID: 25849621 PMCID: PMC4332424 DOI: 10.1186/s13058-015-0526-y] [Citation(s) in RCA: 206] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRNAs) are an emerging class of gene expression modulators with relevant roles in several biological processes, including cell differentiation, development, apoptosis, and regulation of the cell cycle. Deregulation of those tiny RNA molecules has been described frequently as a major determinant for the initiation and progression of diseases, including cancer. Not only miRNAs but also the enzymes responsible for miRNA processing could be deregulated in cancer. In this review, we address the role of miRNAs in the pathogenesis of breast cancer, since there are oncogenic, tumor-suppressive, and metastatic-influencing miRNAs. Additionally, the different detection platforms and normalization strategies for miRNAs will be discussed. The major part of this review, however, will focus on the capability of miRNAs to act as diagnostic, predictive, or prognostic biomarkers. We will give an overview of their potential to correlate with response to or benefit from a given treatment and we will consider their ability to give information on prognosis in breast cancer. We will focus on miRNAs validated by more than one study or verified in independent cohorts or where results rely on preclinical as well as clinical evidence. As such, we will discuss their potential use in the personalized management of breast cancer.
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Abstract
Nasopharyngeal carcinoma (NPC), a distinct type of head and neck cancer, is prevalent in Southeast Asia and southern China. Ethnic background and environmental factors contribute to the development of NPC, further complicating its pathogenesis. An increasing body of evidence indicates that microRNAs (miRNAs) play an important role in the development and progression of NPC, in particular, 32 miRNAs are involved in NPC tumorigenesis, progression, and metastasis. The causal involvement of miRNAs in NPC and their possible use as biomarkers have been extensively studied with promising results, demonstrating the diagnostic and therapeutic potential of miRNAs in NPC. In this review, we summarize the role of all the known miRNAs involved in the signaling pathway implicated in NPC.
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Song M, Lee HW, Kang D. The potential application of personalized preventive research. Jpn J Clin Oncol 2014; 44:1017-24. [PMID: 25249379 DOI: 10.1093/jjco/hyu135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
With increases in life expectancy, the focus has shifted to living a healthier, longer life. By concentrating on preventing diseases before occurrence, researchers aim to diminish the increasing gap in medical costs and health inequalities prevalent across many nations. Although we have entered an era of post-genomics, we are still in infancy in terms of personalized preventive research. Personalized preventive research has and will continue to improve with advancements in the use of biomarkers and risk assessment. More evidence based on well-designed epidemiologic studies is required to provide comprehensive preventive medical care based on genetic and non-genetic profile data. The realization of personalized preventive research requires building of evidence through appropriate methodology, verification of results through translational studies as well as development and application of prediction models.
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Affiliation(s)
- Minkyo Song
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul
| | - Hwi-Won Lee
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul
| | - Daehee Kang
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Breast- and Salivary Gland-Derived Adenoid Cystic Carcinomas: Potential Post-Transcriptional Divergencies. A Pilot Study Based on miRNA Expression Profiling of Four Cases and Review of the Potential Relevance of the Findings. Pathol Oncol Res 2014; 21:29-44. [DOI: 10.1007/s12253-014-9770-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 03/25/2014] [Indexed: 12/18/2022]
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39
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Obsteter J, Dovc P, Kunej T. Genetic variability of microRNA regulome in human. Mol Genet Genomic Med 2014; 3:30-9. [PMID: 25629077 PMCID: PMC4299713 DOI: 10.1002/mgg3.110] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 07/19/2014] [Accepted: 07/31/2014] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs are currently being extensively studied due to their important role as post-transcriptional regulators. During miRNA biogenesis, precursors undergo two cleavage steps performed by Drosha-DGCR8 (Microprocessor) cleaving of pri-miRNA to produce pre-miRNA and Dicer-mediated cleaving to create mature miRNA. Genetic variants within human miRNA regulome have been shown to influence miRNA expression, target interaction and to affect the phenotype. In this study, we reviewed the literature, existing bioinformatics tools and catalogs associated with polymorphic miRNA regulome, and organized them into four categories: (1) polymorphisms located within miRNA genes (miR-SNPs), (2) transcription factor-binding sites/miRNA regulatory regions (miR-rSNPs), (3) miRNA target sites (miR-TS-SNPs), and 4. miRNA silencing machinery (miR-SM-SNPs). Since the miR-SM-SNPs have not been systematically studied yet, we have collected polymorphisms associated with miRNA silencing machinery. We have developed two catalogs containing genetic variability within: (1) genes encoding three main catalytic components of the silencing machinery, DROSHA, DGCR8, and DICER1; (2) miRNA genes itself, overlapping Drosha and Dicer cleavage sites. The developed resource of polymorphisms is available online (http://www.integratomics-time.com/miRNA-regulome) and will be useful for further functional studies and development of biomarkers associated with diseases and phenotypic traits.
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Affiliation(s)
- Jana Obsteter
- University of Ljubljana, Biotechnical Faculty, Department of Animal Science Groblje 3, 1230, Domzale, Slovenia
| | - Peter Dovc
- University of Ljubljana, Biotechnical Faculty, Department of Animal Science Groblje 3, 1230, Domzale, Slovenia
| | - Tanja Kunej
- University of Ljubljana, Biotechnical Faculty, Department of Animal Science Groblje 3, 1230, Domzale, Slovenia
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Huang JT, Wang J, Srivastava V, Sen S, Liu SM. MicroRNA Machinery Genes as Novel Biomarkers for Cancer. Front Oncol 2014; 4:113. [PMID: 24904827 PMCID: PMC4032885 DOI: 10.3389/fonc.2014.00113] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 05/01/2014] [Indexed: 12/25/2022] Open
Abstract
MicroRNAs (miRNAs) directly and indirectly affect tumorigenesis. To be able to perform their myriad roles, miRNA machinery genes, such as Drosha, DGCR8, Dicer1, XPO5, TRBP, and AGO2, must generate precise miRNAs. These genes have specific expression patterns, protein-binding partners, and biochemical capabilities in different cancers. Our preliminary analysis of data from The Cancer Genome Atlas consortium on multiple types of cancer revealed significant alterations in these miRNA machinery genes. Here, we review their biological structures and functions with an eye toward understanding how they could serve as cancer biomarkers.
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Affiliation(s)
- Jing-Tao Huang
- Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University , Wuhan , China
| | - Jin Wang
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center , Houston, TX , USA
| | - Vibhuti Srivastava
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center , Houston, TX , USA
| | - Subrata Sen
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center , Houston, TX , USA
| | - Song-Mei Liu
- Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University , Wuhan , China
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Luo Q, Wei C, Li X, Li J, Chen L, Huang Y, Song H, Li D, Fang L. MicroRNA-195-5p is a potential diagnostic and therapeutic target for breast cancer. Oncol Rep 2014; 31:1096-102. [PMID: 24402230 PMCID: PMC3926672 DOI: 10.3892/or.2014.2971] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 12/23/2013] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRNAs) are a class of highly conserved, small endogenous single-strand non-coding RNAs. They are aberrantly expressed in the circulation and tissue of patients with cancer. Therefore, it has been suggested that they may act as key regulators of carcinogenesis. The aim of the present study was to examine the expression level of miR-195-5p in human breast cancer and its potential role in carcinogenesis. The expression level of miR-195-5p was measured in 40 breast cancer specimens and adjacent normal breast tissues by quantitative polymerase chain reaction (qPCR). Next, to explore the potential function of miR-195-5p, we used MDA-MB-231 human breast cancer cells and carried out MTT, colony formation, Transwell chamber migration and cell cycle assays. The dual-luciferase reporter assay was also performed to determine putative targets of miR-195-5p, which were validated using qPCR and western blot assays. We found that miR-195-5p expression was significantly decreased in the 40 breast cancer specimens when compared with that in the adjacent normal breast tissues (P<0.05). Overexpression of miR-195-5p inhibited cell proliferation, reduced cell colony formation, suppressed cell migration and caused an accumulation of cells in the G1 phase of the cell cycle. In the 3'-untranslated region (3'-UTR) of cyclin E1 (CCNE1), we found two putative target sites which may bind miR-195-5p, suggesting that CCNE1 is a direct target of miR-195-5p. Furthermore, through qPCR and western blot assays we showed that overexpression of miR-195-5p reduced CCNE1 mRNA and protein levels, respectively. Our study suggests that miR-195-5p may act as a tumor suppressor in breast cancer. Therefore, targeting of this miRNA may provide a novel strategy for the diagnosis and treatment of patients with this lethal disease.
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Affiliation(s)
- Qifeng Luo
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Chuankui Wei
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Xiaoyu Li
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Jia Li
- Department of Microbiology and Genetic Institute, Paris-Sud 11 University, Paris, France
| | - Lei Chen
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Yixiang Huang
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Hongming Song
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Dengfeng Li
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Lin Fang
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
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D'Ippolito E, Iorio MV. MicroRNAs and triple negative breast cancer. Int J Mol Sci 2013; 14:22202-20. [PMID: 24284394 PMCID: PMC3856060 DOI: 10.3390/ijms141122202] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 10/09/2013] [Accepted: 10/11/2013] [Indexed: 12/14/2022] Open
Abstract
Triple Negative Breast Cancer (TNBC) is a very aggressive tumor subtype, which still lacks specific markers for an effective targeted therapy. Despite the common feature of negativity for the three most relevant receptors (ER, PgR and HER2), TNBC is a very heterogeneous disease where different subgroups can be recognized, and both gene and microRNA profiling studies have recently been carried out to dissect the different molecular entities. Moreover, several microRNAs playing a crucial role in triple negative breast cancer biology have been identified, providing the experimental basis for a possible therapeutic application. Indeed, the causal involvement of microRNAs in breast cancer and the possible use of these small noncoding RNA molecules as biomarkers has been extensively studied with promising results. Their application as therapeutic tools might represent an innovative approach, especially for a tumor subgroup still lacking an efficient and specific therapy such as TNBC. In this review, we summarize our knowledge on the most important microRNAs described in TNBC.
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Affiliation(s)
- Elvira D'Ippolito
- Start Up Unit, Experimental Oncology Department, Fondazione IRCCS Istituto Nazionale Tumori, Via Amadeo 42, Milan 20133, Italy.
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Weng Y, Chen Y, Chen J, Liu Y, Bao T. Common genetic variants in the microRNA biogenesis pathway are associated with malignant peripheral nerve sheath tumor risk in a Chinese population. Cancer Epidemiol 2013; 37:913-6. [PMID: 23763827 DOI: 10.1016/j.canep.2013.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 05/10/2013] [Accepted: 05/14/2013] [Indexed: 12/29/2022]
Abstract
PURPOSE The role of microRNAs (miRNAs) in tumorigenesis has been well established. Genetic variants in the miRNA biogenesis pathway genes may modify cancer development and survival by affecting the miRNA biogenesis. Our aim is to investigate the association of polymorphisms in the miRNA biogenesis pathway genes and malignant peripheral nerve sheath tumor (MPNST) risk among neurofibromatosis type 1 (NF1) patients. METHODS A case-control study was performed to analyze 53 SNPs in 11 miRNA biogenesis pathway genes in 356 patients (200 patients with NF1 and 156 patients with both NF1 and MPNST) in China. Association analysis was performed in an additive genetic model by logistics regression. RESULTS Four SNPs (DDX5 rs1991401, OR=1.79, 95% CI, 1.34-2.38, P=7.90 × 10(-5); DROSHA rs10719, OR=1.64, 95% CI, 1.23-2.20, P=8.76 × 10(-4); AGO2 rs7005286, OR=0.48, 95% CI, 0.32-0.72, P=3.46 × 10(-4); GEMIN4 rs7813, OR=0.50, 95% CI, 0.34-0.72, P=2.65 × 10(-4)) were significantly associated with MPNST risk. A strong gene-dose effect with increased MPNST risk (P for trend<0.001) was observed. CONCLUSIONS Genetic variants in the miRNA biogenesis pathway genes may modify MPNST risk both individually and jointly.
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Affiliation(s)
- Yuxiong Weng
- Hand Surgery Department, Wuhan Union Hospital, Huazhong University of Science and Technology, Wuhan, China.
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The role of microRNAs in cancer susceptibility. BIOMED RESEARCH INTERNATIONAL 2013; 2013:591931. [PMID: 23586049 PMCID: PMC3615597 DOI: 10.1155/2013/591931] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 02/14/2013] [Indexed: 12/21/2022]
Abstract
Single nucleotide polymorphisms (SNPs) are germline variations interspersed in the human genome. These subtle changes of DNA sequence can influence the susceptibility to various pathologies including cancer. The functional meaning of SNPs is not always clear, being, the majority of them, localized in noncoding regions. The discovery of microRNAs, tiny noncoding RNAs able to bind the 3′ untranslated region (UTR) of target genes and to consequently downregulate their expression, has provided a functional explanation of how some SNPs positioned in noncoding regions contribute to cancer susceptibility. In this paper we summarize the current knowledge of the effect on cancer susceptibility of SNPs included in regions related with miRNA-dependent pathways. Hereditary cancer comes up from mutations that occur in high-penetrant predisposing tumor genes. However, a considerable part of inherited cancers arises from multiple low-penetrant predisposing gene variants that influence the behavior of cancer insurgence. Despite the established significance of such polymorphic variants in cancer predisposition, sometimes their functional role remains unknown. The discovery of a new group of genes called microRNAs (miRNAs) opened an avenue for the functional interpretation of polymorphisms involved in cancer predisposition.
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Zu Y, Ban J, Xia Z, Wang J, Cai Y, Ping W, Sun W. Genetic variation in a miR-335 binding site in BIRC5 alters susceptibility to lung cancer in Chinese Han populations. Biochem Biophys Res Commun 2012; 430:529-34. [PMID: 23232114 DOI: 10.1016/j.bbrc.2012.12.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 12/01/2012] [Indexed: 02/02/2023]
Abstract
Polymorphisms in 3' untranslated region (UTR) of cancer-related genes might affect their regulation by microRNAs (miRNAs) and thereby contribute to carcinogenesis. In this study, we screened single nucleotide polymorphisms (SNPs) in 3' UTR of cancer-related genes and investigated their effects on risk of lung cancer. First, we genotyped seven SNPs in a Chinese Han population with 600 lung cancer patients and 600 matched healthy controls and found that compared with the TT genotype of rs2239680 in 3' UTR of baculoviral IAP repeat containing 5 (BIRC5), C allele was associated with a significantly increased risk of lung cancer and advanced pathologic stage, with the odds ratio for participants carrying the CT or CC genotype being 1.50 [95% confidence interval (CI) 1.20-1.89, P<0.01] and 2.29 (95% CI 1.64-3.18, P<0.01), respectively. These results were further replicated and confirmed in another independent population with 1000 lung cancer cases and 1000 matched healthy controls. In support of the postulation that the 3' UTR SNP may directly affect miRNA-binding site, reporter gene assays indicated BIRC5 was a direct target of miR-335, and the rs2239680 T>C change resulted in altered regulation of BIRC5 expression. Moreover, BIRC5 was over expressed in lung cancer tissues compared with the normal lung tissues, and the protein levels of BIRC5 correlated with SNP genotypes in normal lung tissues. Our findings defined a 3' UTR SNP in human BIRC5 oncogene that may increase individual susceptibility to lung cancer probably by attenuating the interaction between miR-335 and BIRC5.
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Affiliation(s)
- Yukun Zu
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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