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Roy R, Man E, Aldakhlallah R, Gonzalez K, Merritt L, Daisy C, Lombardo M, Yordanova V, Sun L, Isaac B, Rockowitz S, Lotz M, Pories S, Moses MA. Mammary adipocytes promote breast tumor cell invasion and angiogenesis in the context of menopause and obesity. Biochim Biophys Acta Mol Basis Dis 2024:167325. [PMID: 38925485 DOI: 10.1016/j.bbadis.2024.167325] [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: 01/17/2024] [Revised: 06/03/2024] [Accepted: 06/19/2024] [Indexed: 06/28/2024]
Abstract
The mechanism(s) underlying obesity-related postmenopausal (PM) breast cancer (BC) are not clearly understood. We hypothesized that the increased local presence of 'obese' mammary adipocytes within the BC microenvironment promotes the acquisition of an invasive and angiogenic BC cell phenotype and accelerates tumor proliferation and progression. BC cells, treated with primary mammary adipocyte secretome from premenopausal (Pre-M) and PM obese women (ObAdCM; obese adipocyte conditioned-media) upregulated the expression of several pro-tumorigenic factors including VEGF, lipocalin-2 and IL-6. Both Pre-M and PM ObAdCM stimulated endothelial cell recruitment and proliferation and significantly stimulated BC cell proliferation, migration and invasion. IL-6 and LCN2 induced STAT3/Akt signaling in BC cells and STAT3 inhibition abrogated the ObAdCM-stimulated BC cell proliferation and migration. Expression of proangiogenic regulators including VEGF, NRP1, NRP2, IL8RB, TGFβ2, and TSP-1 were found to be differentially regulated in mammary adipocytes from obese PM women. Comparative RNAseq indicated an upregulation of PI3K/Akt signaling, ECM-receptor interactions and lipid/fatty acid metabolism in PM versus Pre-M mammary adipocytes. Our results demonstrate that irrespective of menopausal status, cross-talk between obese mammary adipocytes and BC cells promotes tumor aggressiveness and suggest that targeting the LCN2/IL-6/STAT3 signaling axis may be a useful strategy in obesity-driven breast tumorigenesis.
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Affiliation(s)
- Roopali Roy
- Vascular Biology Program, Boston Children's Hospital, Boston, MA, USA; Department of Surgery, Harvard Medical School and Boston Children's Hospital, Boston, MA, USA.
| | - Emily Man
- Vascular Biology Program, Boston Children's Hospital, Boston, MA, USA
| | - Rama Aldakhlallah
- Vascular Biology Program, Boston Children's Hospital, Boston, MA, USA
| | | | - Lauren Merritt
- Vascular Biology Program, Boston Children's Hospital, Boston, MA, USA
| | - Cassandra Daisy
- Vascular Biology Program, Boston Children's Hospital, Boston, MA, USA
| | - Michael Lombardo
- Vascular Biology Program, Boston Children's Hospital, Boston, MA, USA; Department of Surgery, Harvard Medical School and Boston Children's Hospital, Boston, MA, USA
| | | | - Liang Sun
- Research Computing and Information Technology, Boston Children's Hospital, Boston, MA, USA
| | - Biju Isaac
- Research Computing and Information Technology, Boston Children's Hospital, Boston, MA, USA
| | - Shira Rockowitz
- Research Computing and Information Technology, Boston Children's Hospital, Boston, MA, USA; Division of Genetics and Genomics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, USA; The Manton Center for Orphan Disease Research, Boston Children's Hospital, Boston, MA, USA
| | - Margaret Lotz
- Hoffman Breast Center, Mount Auburn Hospital, Cambridge, MA, USA
| | - Susan Pories
- Department of Surgery, Harvard Medical School and Boston Children's Hospital, Boston, MA, USA; Hoffman Breast Center, Mount Auburn Hospital, Cambridge, MA, USA
| | - Marsha A Moses
- Vascular Biology Program, Boston Children's Hospital, Boston, MA, USA; Department of Surgery, Harvard Medical School and Boston Children's Hospital, Boston, MA, USA.
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2
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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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3
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Bakkalci D, Al-Badri G, Yang W, Nam A, Liang Y, Khurram SA, Heavey S, Fedele S, Cheema U. Spatial transcriptomic interrogation of the tumour-stroma boundary in a 3D engineered model of ameloblastoma. Mater Today Bio 2024; 24:100923. [PMID: 38226014 PMCID: PMC10788620 DOI: 10.1016/j.mtbio.2023.100923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 11/24/2023] [Accepted: 12/17/2023] [Indexed: 01/17/2024] Open
Abstract
Stromal cells are key components of the tumour microenvironment (TME) and their incorporation into 3D engineered tumour-stroma models is essential for tumour mimicry. By engineering tumouroids with distinct tumour and stromal compartments, it has been possible to identify how gene expression of tumour cells is altered and influenced by the presence of different stromal cells. Ameloblastoma is a benign epithelial tumour of the jawbone. In engineered, multi-compartment tumouroids spatial transcriptomics revealed an upregulation of oncogenes in the ameloblastoma transcriptome where osteoblasts were present in the stromal compartment (bone stroma). Where a gingival fibroblast stroma was engineered, the ameloblastoma tumour transcriptome revealed increased matrix remodelling genes. This study provides evidence to show the stromal-specific effect on tumour behaviour and illustrates the importance of engineering biologically relevant stroma for engineered tumour models. Our novel results show that an engineered fibroblast stroma causes the upregulation of matrix remodelling genes in ameloblastoma which directly correlates to measured invasion in the model. In contrast the presence of a bone stroma increases the expression of oncogenes by ameloblastoma cells.
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Affiliation(s)
- Deniz Bakkalci
- UCL Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, University College London, Charles Bell House, 43-45 Foley Street, W1W 7TS, London, UK
| | - Georgina Al-Badri
- Department of Mathematics, University College London, 25 Gordon Street, WC1H 0AY, London, UK
| | - Wei Yang
- NanoString Technologies, 530 Fairview Ave N, Seattle, WA 98109, USA
| | - Andy Nam
- NanoString Technologies, 530 Fairview Ave N, Seattle, WA 98109, USA
| | - Yan Liang
- NanoString Technologies, 530 Fairview Ave N, Seattle, WA 98109, USA
| | - Syed Ali Khurram
- Unit of Oral and Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, 19 Claremont Crescent, S10 2TA, Sheffield, UK
| | - Susan Heavey
- UCL Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, University College London, Charles Bell House, 43-45 Foley Street, W1W 7TS, London, UK
| | - Stefano Fedele
- Eastman Dental Institute, University College London, London, UK
| | - Umber Cheema
- UCL Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, University College London, Charles Bell House, 43-45 Foley Street, W1W 7TS, London, UK
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4
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Chhichholiya Y, Singh HV, Singh S, Munshi A. Genetic variations in tumor-suppressor miRNA-encoding genes and their target genes: focus on breast cancer development and possible therapeutic strategies. Clin Transl Oncol 2024; 26:1-15. [PMID: 37093457 DOI: 10.1007/s12094-023-03176-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 03/26/2023] [Indexed: 04/25/2023]
Abstract
MicroRNAs (miRNAs) negatively affect gene expression by binding to their specific mRNAs resulting in either mRNA destruction or translational repression. The aberrant expression of various miRNAs has been associated with a number of human cancer. Oncogenic or tumor-suppressor miRNAs regulate a variety of pathways involved in the development of breast cancer (BC), including cell proliferation, apoptosis, metastasis, cancer recurrence, and chemoresistance. Variations in miRNA-encoding genes and their target genes lead to dysregulated gene expression resulting in the development and progression of BC. The various therapeutic approaches to treat the disease include chemotherapy, radiation therapy, surgical removal, hormone therapy, chemotherapy, and targeted biological therapy. The purpose of the current review is to explore the genetic variations in tumor-suppressor miRNA-encoding genes and their target genes in association with the disease development and prognosis. The therapeutic interventions targeting the variants for better disease outcomes have also been discussed.
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Affiliation(s)
- Yogita Chhichholiya
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab, India
| | - Harsh Vikram Singh
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab, India
| | - Sandeep Singh
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab, India.
| | - Anjana Munshi
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab, India.
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5
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Verhoeff TJ, Holloway AF, Dickinson JL. Non-coding RNA regulation of integrins and their potential as therapeutic targets in cancer. Cell Oncol (Dordr) 2023; 46:239-250. [PMID: 36512308 PMCID: PMC10060301 DOI: 10.1007/s13402-022-00752-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Integrins are integral to cell signalling and management of the extracellular matrix, and exquisite regulation of their expression is essential for a variety of cell signalling pathways, whilst disordered regulation is a key driver of tumour progression and metastasis. Most recently non-coding RNAs in the form of micro-RNA (miRNA) and long non-coding RNA (lncRNA) have emerged as a key mechanism by which tissue dependent gene expression is controlled. Whilst historically these molecules have been poorly understood, advances in 'omic' technologies and a greater understanding of non-coding regions of the genome have revealed that non-coding RNAs make up a large proportion of the transcriptome. CONCLUSIONS AND PERSPECTIVES This review examines the regulation of integrin genes by ncRNAs, provides and overview of their mechanism of action and highlights how exploitation of these discoveries is informing the development of novel chemotherapeutic agents in the treatment of cancer. MiRNA molecules have been the most extensively characterised and negatively regulate most integrin genes, classically regulating genes through binding to recognition sequences in the mRNA 3'-untranslated regions of gene transcripts. LncRNA mechanisms of action are now being elucidated and appear to be more varied and complex, and may counter miRNA molecules, directly engage integrin mRNA transcripts, and guide or block both transcription factors and epigenetic machinery at integrin promoters or at other points in integrin regulation. Integrins as therapeutic targets are of enormous interest given their roles as oncogenes in a variety of tumours, and emerging therapeutics mimicking ncRNA mechanisms of action are already being trialled.
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Affiliation(s)
- Tristan Joseph Verhoeff
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart (Tasmania), Australia
| | - Adele F Holloway
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart (Tasmania), Australia
| | - Joanne L Dickinson
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart (Tasmania), Australia.
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6
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Ullah A, Yu X, Odenthal M, Meemboor S, Ahmad B, Rehman IU, Ahmad J, Ali Q, Nadeem T. Circulating microRNA-122 in HCV cirrhotic patients with high frequency of genotype 3. PLoS One 2022; 17:e0268526. [PMID: 35617369 PMCID: PMC9135289 DOI: 10.1371/journal.pone.0268526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 05/02/2022] [Indexed: 11/18/2022] Open
Abstract
MicroRNA-122 (miR-122) is a liver abundant microRNA that is released upon liver injury. In the present study, we investigated the circulating miR-122 profiles in a Pakistani patients´ cohort with HCV chronic liver disease that was mainly based on HCV genotype 3 infections. From 222 patients with chronic HCV liver disease, classified as mild, moderate, or severe, serum samples were collected. Cell-free RNA was isolated and used for miR-122 quantification by qPCR. More than 60% of 222 patients were infected with HCV genotype 3. ALT values and HCV viral load showed no correlation with the HCV genotype. Circulating miR-122 levels were significantly upregulated in patients with cirrhosis. Notably, HCV patients with mild cirrhosis showed the most marked increase in serum miR-122 levels (p = 0.0001). Furthermore, we proved a positive correlation (r = 0.46) of miR-122 with the ALT values in patients with mild cirrhosis. Importantly, our data of increased miR-122 levels in serum samples obtained from a patient cohort with a high prevalence of chronic genotype 3 HCV infection confirmed the previous findings collected from cohorts with a high prevalence of genotype 1. Therefore, we suggest that miR-122 increase after HCV infection does not depend on the HCV genotype. In conclusion, our findings confirm that serum miR-122 levels are significantly upregulated in the HCV cirrhotic patients serving in particular as a biomarker for the non-advanced stages of cirrhosis, independently of the HCV genotype.
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Affiliation(s)
- Amin Ullah
- Centre of Biotechnology & Microbiology (COBAM), University of Peshawar, Peshawar, Pakistan
- Centre for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Xiaojie Yu
- Centre for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
- Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - Margarete Odenthal
- Centre for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
- Institute of Pathology, University Hospital of Cologne, Cologne, Germany
- * E-mail: (MO); (QA)
| | - Sonja Meemboor
- Centre for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
- Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - Bashir Ahmad
- Centre of Biotechnology & Microbiology (COBAM), University of Peshawar, Peshawar, Pakistan
| | - Irshad ur Rehman
- Centre of Biotechnology & Microbiology (COBAM), University of Peshawar, Peshawar, Pakistan
| | - Jamshaid Ahmad
- Centre of Biotechnology & Microbiology (COBAM), University of Peshawar, Peshawar, Pakistan
| | - Qurban Ali
- Institute of Molecular Biology and Biotechnology, University of Lahore, Lahore, Pakistan
- Department of Plant Breeding and Genetics, Faculty of Agriculture, University of the Punjab, Lahore, Pakistan
- * E-mail: (MO); (QA)
| | - Tariq Nadeem
- National Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
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7
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Huang W, Fan L, Tang Y, Chi Y, Li J. A Pan-Cancer Analysis of the Oncogenic Role of Integrin Beta4 (ITGB4) in Human Tumors. Int J Gen Med 2021; 14:9629-9645. [PMID: 34924769 PMCID: PMC8674675 DOI: 10.2147/ijgm.s341076] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/30/2021] [Indexed: 12/17/2022] Open
Abstract
Background Integrin beta4 (ITGB4) is a transmembrane receptor that plays a key role in tumorigenesis and tumor development. However, there are no pan-cancer analyses of ITGB4. Methods This study demonstrates the first potential oncogenic roles of ITGB4 across 33 tumors based on the dataset of the Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO). Results ITGB4 is highly expressed in many cancers, and distinct correlations exist between ITGB4 expression and the prognosis of tumor patients. We also found that the methylation and genetic alteration level of ITGB4 was associated with some cancer prognosis. Furthermore, we found a reduced phosphorylation of ITGB4 at S1457 in several tumors, such as breast and ovarian cancers. Finally, ITGB4 expression was correlated with cancer-associated fibroblasts in liver hepatocellular carcinoma and prostate adenocarcinoma, and the infiltration level of NK cells and neutrophils was observed in other cancers, such as breast invasive carcinoma and lung adenocarcinoma. Moreover, RNA metabolism and protein processing-associated functions are involved in the functional mechanism of ITGB4. Conclusion Our first pan-cancer study may offer a relatively comprehensive understanding of the oncogenic roles of ITGB4 across different tumors.
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Affiliation(s)
- Wenjie Huang
- Department of Reproductive Medicine, Liuzhou Maternity and Child Healthcare Hospital, Affiliated Women and Children's Hospital of Guangxi University of Science and Technology, Liuzhou, Guangxi, 545001, People's Republic of China
| | - Li Fan
- Department of Reproductive Medicine, Liuzhou Maternity and Child Healthcare Hospital, Affiliated Women and Children's Hospital of Guangxi University of Science and Technology, Liuzhou, Guangxi, 545001, People's Republic of China
| | - Yongmei Tang
- Department of Reproductive Medicine, Liuzhou Maternity and Child Healthcare Hospital, Affiliated Women and Children's Hospital of Guangxi University of Science and Technology, Liuzhou, Guangxi, 545001, People's Republic of China
| | - Yinxiu Chi
- School of Basic Medicine, Central South University, Changsha, Hunan, 410078, People's Republic of China
| | - Jingjing Li
- Department of Reproductive Medicine, Liuzhou Maternity and Child Healthcare Hospital, Affiliated Women and Children's Hospital of Guangxi University of Science and Technology, Liuzhou, Guangxi, 545001, People's Republic of China
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8
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Huang R, Zheng Z, Xian S, Zhang J, Jia J, Song D, Yan P, Yin H, Hu P, Zhu X, Huang Z, Meng T, Zhang J. Identification of prognostic and bone metastatic alternative splicing signatures in bladder cancer. Bioengineered 2021; 12:5289-5304. [PMID: 34402716 PMCID: PMC8806927 DOI: 10.1080/21655979.2021.1964252] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Bladder cancer (BLCA), originating from the epithelium of the urinary bladder, was the second most common malignancy in the urinary system with a high metastasis rate and poor post-metastasis prognosis. Alternative splicing events (ASEs) were regarded as important markers of tumor progression and prognosis, however, their roles in bladder cancer bone metastasis have not been recognized. In this study, we constructed a predictive model based on ASEs and explored the molecular mechanism of ASEs in BLCA bone metastasis, based on data from the Cancer Genome Atlas (TCGA) and TCGASpliceSeq databases. We proposed the hypothesis that the splicing events of ITGB4 was regulated by the splicing factor JUP, and this regulation might play a key role in BLCA bone metastasis through the glycosphingolipid biosynthesis ganglio series pathway.
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Affiliation(s)
- Runzhi Huang
- Key Laboratory Of Spine And Spinal Cord Injury Repair And Regeneration Tongji University, Ministry Of Education, Shanghai, China.,Division Of Spine, Department Of Orthopedics, Tongji Hospital Affiliated To Tongji University School Of Medicine, Shanghai, China
| | - Zixuan Zheng
- Tongji University School Of Medicine (Shanghai Pulmonary Hospital), Shanghai, China
| | - Shuyuan Xian
- Key Laboratory Of Spine And Spinal Cord Injury Repair And Regeneration Tongji University, Ministry Of Education, Shanghai, China.,Division Of Spine, Department Of Orthopedics, Tongji Hospital Affiliated To Tongji University School Of Medicine, Shanghai, China
| | - Jiayao Zhang
- School Of Mathematical Sciences Of Tongji University, Shanghai, China
| | - Jingyi Jia
- Tongji University School Of Medicine (Shanghai Pulmonary Hospital), Shanghai, China
| | - Dianwen Song
- Department Of Orthopedics, Shanghai General Hospital, School Of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Penghui Yan
- Department Of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Huabin Yin
- Department Of Orthopedics, Shanghai General Hospital, School Of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Peng Hu
- Department Of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaolong Zhu
- Department Of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zongqiang Huang
- Department Of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tong Meng
- Department Of Orthopedics, Shanghai General Hospital, School Of Medicine, Shanghai Jiaotong University, Shanghai, China.,Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School Of Medicine, Shanghai, China
| | - Jie Zhang
- Key Laboratory Of Spine And Spinal Cord Injury Repair And Regeneration Tongji University, Ministry Of Education, Shanghai, China.,Division Of Spine, Department Of Orthopedics, Tongji Hospital Affiliated To Tongji University School Of Medicine, Shanghai, China
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9
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Yang H, Xu Z, Peng Y, Wang J, Xiang Y. Integrin β4 as a Potential Diagnostic and Therapeutic Tumor Marker. Biomolecules 2021; 11:biom11081197. [PMID: 34439865 PMCID: PMC8394641 DOI: 10.3390/biom11081197] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 11/05/2022] Open
Abstract
Integrin β4 (ITGβ4) is a class of transmembrane adhesion molecules composed of hemidesmosomes (HDs). Its unique long intracellular domain provides intricate signal transduction functions. These signal transduction effects are especially prominent in tumors. Many recent studies have shown that integrin β4 is differentially expressed in various tumors, and it plays a vital role in tumor invasion, proliferation, epithelial–mesenchymal transition, and angiogenesis. Therefore, we categorize the research related to integrin β4, starting from its structure and function in tumor tissues, and provide a basic description. Based on its structure and function, we believe that integrin β4 can be used as a tumor marker. In clinical practice, it is described as a diagnostic marker for the targeted treatment of cancer and will be helpful in the clinical diagnosis and treatment of tumors.
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Affiliation(s)
- Haoyu Yang
- School of Basic Medical Science, Central South University, Changsha 410013, China; (H.Y.); (Z.X.); (Y.P.)
| | - Zixuan Xu
- School of Basic Medical Science, Central South University, Changsha 410013, China; (H.Y.); (Z.X.); (Y.P.)
| | - Yuqian Peng
- School of Basic Medical Science, Central South University, Changsha 410013, China; (H.Y.); (Z.X.); (Y.P.)
| | - Jiali Wang
- Xiang Ya School of Medicine, Central South University, Changsha 410013, China;
| | - Yang Xiang
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha 410013, China
- Correspondence: ; Tel.:+86-139-7312-8943
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10
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Fertility-Associated Polymorphism within Bovine ITGβ5 and Its Significant Correlations with Ovarian and Luteal Traits. Animals (Basel) 2021; 11:ani11061579. [PMID: 34071201 PMCID: PMC8228251 DOI: 10.3390/ani11061579] [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: 04/01/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary The fertility of bovines is essential for cattle husbandry. ITGβ5, which is suggested to be closely related to fertility, is known to mediate cell adhesion and affect a variety of cellular activities. To investigate the relationship between the ITGβ5 gene and the fertility of bovines, 696 ovarian samples were collected and six potential indel (insertion/deletion) within ITGβ5 were analysed, from which a deletion mutation was found to be polymorphic. The genotype frequency and allele frequency of this locus in the investigated population were calculated and the population genetic parameters analyzed. In addition, this locus was found to be significantly correlated with ovarian width and corpus luteum diameter. Considering the importance of ovary and corpus luteum in reproduction, it is tempting to speculate the crucial effects of ITGβ5 on bovine fertility, which still need further validation. The results of our study might provide a theoretical basis for future breeding to enhance bovine reproduction. Abstract There is an urgent need to improve bovine fertility, and molecular marker-assisted selection (MAS) can accelerate this process. Genome-wide association studies suggest that Integrin β5 (ITGβ5) might affect fertility in bovines. As a member of the integrins family, ITGβ5 can bind to the extracellular matrix and mediate various cellular processes. In our study, primers spanning six potential insertion/deletion (indel) polymorphisms within the ITGβ5 gene were designed and 696 ovary samples from different individuals, the vast majority not in oestrum were collected for genetic variation detection. A deletion locus, rs522759246, namely P1-D13-bp, was found to be polymorphic. The allele D frequency was 0.152 and the polymorphism information content (PIC) value was 0.224, indicating a low-degree PIC. This locus did not follow the Hardy–Weinberg equilibrium (p = 1.200E-23). Importantly, associations between P1-D13-bp and ovarian morphological traits were established. Polymorphisms of this locus had significant correlations with ovarian width (p = 0.015). The corpus luteum is also linked to fertility and P1-D13-bp was significantly correlated with corpus luteum diameter (p = 0.005). In conclusion, an indel mutation within the bovine ITGβ5 gene was identified, which was significantly associated with several ovarian and luteal traits.
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11
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Zhang L, Han L, Huang Y, Feng Z, Wang X, Li H, Song F, Liu L, Li J, Zheng H, Wang P, Song F, Chen K. SNPs within microRNA binding sites and the prognosis of breast cancer. Aging (Albany NY) 2021; 13:7465-7480. [PMID: 33658398 PMCID: PMC7993692 DOI: 10.18632/aging.202612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/29/2020] [Indexed: 12/25/2022]
Abstract
Single nucleotide polymorphisms (SNPs) within microRNA binding sites can affect the binding of microRNA to mRNA and regulate gene expression, thereby contributing to cancer prognosis. Here we performed a two-stage study of 2647 breast cancer patients to explore the association between SNPs within microRNA binding sites and breast cancer prognosis. In stage I, we genotyped 192 SNPs within microRNA binding sites using the Illumina Goldengate platform. In stage II, we validated SNPs associated with breast cancer prognosis in another dataset using the TaqMan platform. We identified 8 SNPs significantly associated with breast cancer prognosis in stage I (P<0.05), and only rs10878441 was statistically significant in stage II (AA vs CC, HR=2.21, 95% CI: 1.11-4.42, P=0.024). We combined the data from stage I and stage II, and found that, compared with rs10878441 AA genotype, CC genotype was associated with poor survival of breast cancer (HR=2.19, 95% CI: 1.30-3.70, P=0.003). Stratified analyses demonstrated that rs10878441 was related to breast cancer prognosis in grade II and lymph node-negative patients (P<0.05). The Leucine-rich repeat kinase 2 (LRRK2) rs10878441 CC genotype is associated with poor prognosis of breast cancer in a Chinese population and may be used as a potential prognostic biomarker for breast cancer. • The LRRK2 rs10878441 CC genotype is associated with poor prognosis of breast cancer in a Chinese population. • Stratified analyses demonstrated that rs10878441 was related to breast cancer prognosis in grade II patients and lymph node-negative patients.
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Affiliation(s)
- Liwen Zhang
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Lu Han
- Department of Infection Control, Tianjin Huanhu Hospital, Tianjin 300350, People's Republic of China
| | - Yubei Huang
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Ziwei Feng
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Xin Wang
- Department of Epidemiology and Biostatistics, West China School of Public Health, Sichuan University, Sichuan 610041, People's Republic of China
| | - Haixin Li
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China.,Department of Cancer Biobank, Key Laboratory of Cancer Prevention and Therapy of Tianjin, Tianjin's Clinical Research Center for Cancer, National Clinical Research Centre of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Fangfang Song
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Luyang Liu
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Junxian Li
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Hong Zheng
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Peishan Wang
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Fengju Song
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
| | - Kexin Chen
- Department of Epidemiology and Biostatistics, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, People's Republic of China
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12
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Das J, Barman Mandal S. Classification of Homo sapiens gene behavior using linear discriminant analysis fused with minimum entropy mapping. Med Biol Eng Comput 2021; 59:673-691. [PMID: 33595791 DOI: 10.1007/s11517-021-02324-y] [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: 07/02/2020] [Accepted: 01/18/2021] [Indexed: 11/25/2022]
Abstract
Classification of Homo sapiens gene behavior employing computational biology is a recent research trend. But monitoring gene activity profile and genetic behavior from the alphabetic DNA sequence using a non-invasive method is a tremendous challenge in functional genomics. The present paper addresses such issue and attempts to differentiate Homo sapiens genes using linear discriminant analysis (LDA) method. Annotated protein coding sequences of Homo sapiens genes, collected from NCBI, are taken as test samples. Minimum entropy-based mapping (MEM) technique assists to extract highest information from the numerical DNA sequences. The proposed LDA technique has successfully classified Homo sapiens genes based on the following features: composition of hydrophilic amino acids, dominance of arginine amino acid, and magnitude and size of individual amino acids. The proposed algorithm is successfully tested on 84 Homo sapiens healthy and cancer genes of the prostate and breast cells. Classification performance of the proposed LDA technique is judged by sensitivity (89.12%), specificity (91.9%), accuracy (90.87%), F1 score (92.03%), Matthews' correlation coefficients (81.04%), and miss rate (9.12%), and it outperforms other four existing classifiers. The results are cross-validated through Rayleigh PDF and mutual information technique. Fisher test, 2-sample T-test, and relative entropy test are considered to verify the efficacy of the present classifier.
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Affiliation(s)
- Joyshri Das
- Institute of Radio Physics & Electronics, University of Calcutta, Kolkata, India
| | - Soma Barman Mandal
- Institute of Radio Physics & Electronics, University of Calcutta, Kolkata, India
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13
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Nair MG, Somashekaraiah VM, Ramamurthy V, Prabhu JS, Sridhar TS. miRNAs: Critical mediators of breast cancer metastatic programming. Exp Cell Res 2021; 401:112518. [PMID: 33607102 DOI: 10.1016/j.yexcr.2021.112518] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/06/2021] [Accepted: 02/08/2021] [Indexed: 12/14/2022]
Abstract
MicroRNA mediated aberrant gene regulation has been implicated in several diseases including cancer. Recent research has highlighted the role of epigenetic modulation of the complex process of breast cancer metastasis by miRNAs. miRNAs play a crucial role in the process of metastatic evolution by facilitating alterations in the phenotype of tumor cells and the tumor microenvironment that promote this process. They act as critical determinants of the multi-step progression starting from carcinogenesis all the way to organotropism. In this review, we focus on the current understanding of the compelling role of miRNAs in breast cancer metastasis.
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Affiliation(s)
- Madhumathy G Nair
- Division of Molecular Medicine, St. John's Research Institute, Bangalore, India.
| | | | - Vishakha Ramamurthy
- Division of Molecular Medicine, St. John's Research Institute, Bangalore, India
| | - Jyothi S Prabhu
- Division of Molecular Medicine, St. John's Research Institute, Bangalore, India
| | - T S Sridhar
- Division of Molecular Medicine, St. John's Research Institute, Bangalore, India
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14
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Bu Q, Zhu Y, Chen QY, Li H, Pan Y. A polymorphism in the 3'-untranslated region of the matrix metallopeptidase 9 gene is associated with susceptibility to idiopathic calcium nephrolithiasis in the Chinese population. J Int Med Res 2020; 48:300060520980211. [PMID: 33345667 PMCID: PMC7756046 DOI: 10.1177/0300060520980211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objective To investigate whether single nucleotide polymorphisms (SNPs) in the 3′ untranslated region (UTR) of the matrix metallopeptidase 9 gene (MMP9) are associated with susceptibility to calcium oxalate stones. Methods A total of 428 patients with kidney stone disease (KSD) and 450 control individuals were enrolled. Three MMP9 SNPs (rs20544, rs9509, and rs1056628) were genotyped, and MMP9 mRNA and protein expression was determined in patients and controls. The dual luciferase reporter gene assay was conducted by transfecting HEK293 cells with miR-491-5p mimics and plasmids containing MMP9 with rs1056628 AA/CC genotypes. Results The rs1056628 CC genotype was significantly increased in KSD patients compared with controls (CC vs AA: odds ratio [OR] = 2.279, 95% confidence interval [CI] = 1.048–4.956). The rs1056628 C allele frequency was higher in KSD patients than controls. The increased KSD risks associated with rs1056628 were more evident in individuals aged <30 years (OR = 3.504, 95% CI = 1.102–11.139) and men (OR = 2.522, 95% CI = 1.004–6.334). mRNA and protein levels of MMP9 were significantly higher in KSD patients with the CC genotype than in those with the AA genotype. Conclusion This study demonstrates that MMP9 SNP rs1056628 is associated with a significant KSD risk in Chinese Han individuals.
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Affiliation(s)
- Qiang Bu
- Department of Urology, Danyang People's Hospital, Danyang, Jiangsu, P.R. China
| | - Yu Zhu
- Department of Anaesthesiology, Huai'an Second People's Hospital and The Affiliated Huai'an Hospital of Xuzhou Medical University, Jiangsu, P.R. China
| | - Qiao-Yun Chen
- Department of Central Laboratory, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China
| | - Hao Li
- Department of Clinical Laboratory, Taixing People's Hospital Affiliated to Bengbu Medical College, Taixing, Jiangsu, P.R. China
| | - Yan Pan
- Department of Clinical Laboratory, Lianshui County People's Hospital, Lianshui, Jiangsu, P.R. China
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15
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Critical Analysis of Genome-Wide Association Studies: Triple Negative Breast Cancer Quae Exempli Causa. Int J Mol Sci 2020; 21:ijms21165835. [PMID: 32823908 PMCID: PMC7461549 DOI: 10.3390/ijms21165835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022] Open
Abstract
Genome-wide association studies (GWAS) are useful in assessing and analyzing either differences or variations in DNA sequences across the human genome to detect genetic risk factors of diseases prevalent within a target population under study. The ultimate goal of GWAS is to predict either disease risk or disease progression by identifying genetic risk factors. These risk factors will define the biological basis of disease susceptibility for the purposes of developing innovative, preventative, and therapeutic strategies. As single nucleotide polymorphisms (SNPs) are often used in GWAS, their relevance for triple negative breast cancer (TNBC) will be assessed in this review. Furthermore, as there are different levels and patterns of linkage disequilibrium (LD) present within different human subpopulations, a plausible strategy to evaluate known SNPs associated with incidence of breast cancer in ethnically different patient cohorts will be presented and discussed. Additionally, a description of GWAS for TNBC will be presented, involving various identified SNPs correlated with miRNA sites to determine their efficacies on either prognosis or progression of TNBC in patients. Although GWAS have identified multiple common breast cancer susceptibility variants that individually would result in minor risks, it is their combined effects that would likely result in major risks. Thus, one approach to quantify synergistic effects of such common variants is to utilize polygenic risk scores. Therefore, studies utilizing predictive risk scores (PRSs) based on known breast cancer susceptibility SNPs will be evaluated. Such PRSs are potentially useful in improving stratification for screening, particularly when combining family history, other risk factors, and risk prediction models. In conclusion, although interpretation of the results from GWAS remains a challenge, the use of SNPs associated with TNBC may elucidate and better contextualize these studies.
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16
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Bahreini F, Rayzan E, Rezaei N. microRNA-related single-nucleotide polymorphisms and breast cancer. J Cell Physiol 2020; 236:1593-1605. [PMID: 32716070 DOI: 10.1002/jcp.29966] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/13/2020] [Indexed: 12/15/2022]
Abstract
Breast cancer, as the most common cancer in women which affects patients both mentally and physically, requires great attention in many areas and many levels as this cancer is known to be multifactorial. Single-stranded molecules called microRNAs with near 22 nucleotides are seen to act in central dogma of molecular biology by inhibiting the translation process; it is demonstrated that any alteration in their sequence especially single-nucleotide polymorphisms (SNPs) may lead into increasing the breast cancer risk. miR-SNPs are considered to be the potential biomarkers for early detection of breast cancer. As a result, this review documents the well-known miR-SNPs that are known to be associated with breast cancer. In this regard, two principals were discussed: (a) SNPs in the target genes of microRNAs and the alteration in gene expression due to this phenomenon; (b) changes based on the SNPs in the microRNA coding region and the impact on their interaction with target messenger RNA.
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Affiliation(s)
- Farbod Bahreini
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Elham Rayzan
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- International Hematology/Oncology of Pediatrics Experts, Universal Scientific Education and Research Network, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity, Universal Scientific Education and Research Network, Tehran, Iran
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17
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Sha Z, Lai R, Zhang X, Zhao Y, Wu J, Geng C, Guo Z. A Polymorphism at the microRNA Binding Site in the 3' Untranslated Region of KRT81 Is Associated with Breast Cancer. DNA Cell Biol 2020; 39:1886-1894. [PMID: 32678982 DOI: 10.1089/dna.2019.5179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Single nucleotide polymorphisms in miRNA binding sites (miR-SNPs) are associated with cancer risk. We assessed the relationship between five miR-SNPs in the 3' untranslated region (3'-UTR) of RYR3 (rs1044129), KIAA0423 (rs1053667), C14orf101 (rs4901706), GOLGA7 (rs11337), and KRT81 (rs3660) and the risk of breast cancer (BC). The CC genotype of rs3660 located in the 3'-UTR of KRT81 was identified for its association with lower BC risk (odds ratio, 0.093; 95% confidence interval, 0.045-0.193; p = 0.000). Immunnochemical analysis and Renilla luciferase reporter assays indicated that the CC genotype of KRT81 was associated with lower expression of KRT81 (p < 0.05). The subsequently functional analysis showed that knockdown the KRT81 could inhibit proliferation and promote apoptosis of the MDA-MB-231 BC cells (p < 0.05) with monocyte chemotactic protein-1 (MCP-1) deregulation. Meanwhile, KRT81 overexpression could promote the proliferation and inhibit the apoptosis of MCF-7 BC cells (p < 0.05). Our data demonstrated that the KRT81 expressional change modulated by rs3660 miR-SNP could modify the carcinogenesis of BC, thereby KRT81 would be a new target for BC treatment.
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Affiliation(s)
- Ziyue Sha
- Department of Immunology and Rheumatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Ruixue Lai
- Department of Immunology and Rheumatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Xiaoyun Zhang
- Department of Immunology and Rheumatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Yufei Zhao
- Department of Immunology and Rheumatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Jianhua Wu
- Department of Animal Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Cuizhi Geng
- Department of Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Zhanjun Guo
- Department of Immunology and Rheumatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
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18
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Jamshidi M, Mohammadi Pour S, Mahmoudian-Sani MR. Single Nucleotide Variants Associated with Colorectal Cancer Among Iranian Patients: A Narrative Review. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2020; 13:167-180. [PMID: 32581566 PMCID: PMC7280057 DOI: 10.2147/pgpm.s248349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/19/2020] [Indexed: 12/31/2022]
Abstract
Colorectal cancer has been considered as one of the complicated multi-stage processes after adenoma-carcinoma sequence. Therefore, studies of the molecular dysregulation basis could present information on the recognition of the potent biomarkers and treatment targets for this disease. Even though outcomes of the patients with colorectal cancer have been improved largely with current annual screening plans, it is necessary to have reliable prognostic biomarkers because of the disease heterogeneity. There is a significant relationship between SNP in IL1RN* 2 (IL1ra), −509 C/T (TGFB1), rs11556218 T>G and rs4778889 T/C (IL16), miRNA-binding site polymorphisms in IL16, rs4464148 (SMAD7), rs6983267 (EGF), GSTT1, TACG haplotype (CTLA4), 1793G> A (MTHFR), Leu/Leu genotype of (EXO1), −137 G/C (IL18), C/T genotype (XRCC3), I3434T (XRCC7), MGMT, C3435T (MDR1), ff genotype of FokI, 677CT+TT (MTHFR), G2677T/A (MDR1) and CRC. Increased risk has been observed in VDR ApaI genotype “aa”. Finally, the protective effect has been explored in the TACA haplotype (CTLA4). According to the findings, the genetic polymorphisms in the immunity-associated genes are related to the CRC amongst the Iranian patients. Therefore, more large-scale functional investigations are necessary for confirming the results.
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Affiliation(s)
- Mohammad Jamshidi
- Department of Laboratory Sciences, School of Allied Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Somayeh Mohammadi Pour
- Department of Obstetrics and Gynecology, School of Medicine Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mohammad-Reza Mahmoudian-Sani
- Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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19
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Alshawaqfeh M, Al Kawam A, Serpedin E, Datta A. Robust Recurrent CNV Detection in the Presence of Inter-Subject Variability. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2020; 17:1056-1067. [PMID: 30387737 DOI: 10.1109/tcbb.2018.2878560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The study of recurrent copy number variations (CNVs) plays an important role in understanding the onset and evolution of complex diseases such as cancer. Array-based comparative genomic hybridization (aCGH) is a widely used microarray based technology for identifying CNVs. However, due to high noise levels and inter-sample variability, detecting recurrent CNVs from aCGH data remains a challenging topic. This paper proposes a novel method for identification of the recurrent CNVs. In the proposed method, the noisy aCGH data is modeled as the superposition of three matrices: a full-rank matrix of weighted piece-wise generating signals accounting for the clean aCGH data, a Gaussian noise matrix to model the inherent experimentation errors and other sources of error, and a sparse matrix to capture the sparse inter-sample (sample-specific) variations. We demonstrated the ability of our method to separate accurately recurrent CNVs from sample-specific variations and noise in both simulated (artificial) data and real data. The proposed method produced more accurate results than current state-of-the-art methods used in recurrent CNV detection and exhibited robustness to noise and sample-specific variations.
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20
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Ruan S, Lin M, Zhu Y, Lum L, Thakur A, Jin R, Shao W, Zhang Y, Hu Y, Huang S, Hurt EM, Chang AE, Wicha MS, Li Q. Integrin β4-Targeted Cancer Immunotherapies Inhibit Tumor Growth and Decrease Metastasis. Cancer Res 2019; 80:771-783. [PMID: 31843981 DOI: 10.1158/0008-5472.can-19-1145] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 09/30/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022]
Abstract
Integrin β4 (ITGB4) has been shown to play an important role in the regulation of cancer stem cells (CSC). Immune targeting of ITGB4 represents a novel approach to target this cell population, with potential clinical benefit. We developed two immunologic strategies to target ITGB4: ITGB4 protein-pulsed dendritic cells (ITGB4-DC) for vaccination and adoptive transfer of anti-CD3/anti-ITGB4 bispecific antibody (ITGB4 BiAb)-armed tumor-draining lymph node T cells. Two immunocompetent mouse models were utilized to assess the efficacy of these immunotherapies in targeting both CSCs and bulk tumor populations: 4T1 mammary tumors and SCC7 head and neck squamous carcinoma cell line. Immunologic targeting of ITGB4 utilizing either ITGB4-DC or ITGB4 BiAb-T cells significantly inhibited local tumor growth and metastases in both the 4T1 and SCC7 tumor models. Furthermore, the efficacy of both of these ITGB4-targeted immunotherapies was significantly enhanced by the addition of anti-PD-L1. Both ITGB4-targeted immunotherapies induced endogenous T-cell cytotoxicity directed at CSCs as well as non-CSCs, which expressed ITGB4, and immune plasma-mediated killing of CSCs. As a result, ITGB4-targeted immunotherapy reduced not only the number of ITGB4high CSCs in residual 4T1 and SCC7 tumors but also their tumor-initiating capacity in secondary mouse implants. In addition, treated mice demonstrated no apparent toxicity. The specificity of these treatments was demonstrated by the lack of effects observed using ITGB4 knockout 4T1 or ITGB4-negative CT26 colon carcinoma cells. Because ITGB4 is expressed by CSCs across a variety of tumor types, these results support immunologic targeting of ITGB4 as a promising therapeutic strategy.Significance: This study identifies a novel mechanism of resistance to anti-PD-1/PD-L1 immunotherapy mediated by HPV E5, which can be exploited using the HPV E5 inhibitor rimantadine to improve outcomes for head and neck cancer patients.
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Affiliation(s)
- Shasha Ruan
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan.,Department of Clinical Oncology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ming Lin
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan.,Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yong Zhu
- Guangzhou Improve Medical Instruments Co., Ltd. Guangzhou, Guangdong, China
| | - Lawrence Lum
- Division of Hematology/Oncology, Department of Medicine, University of Virginia Cancer Center, Charlottesville, Virginia
| | - Archana Thakur
- Division of Hematology/Oncology, Department of Medicine, University of Virginia Cancer Center, Charlottesville, Virginia
| | - Runming Jin
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenlong Shao
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou, China
| | - Yalei Zhang
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou, China
| | - Yangyang Hu
- Department of Rheumatology and Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shiang Huang
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | | | - Alfred E Chang
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
| | - Max S Wicha
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan.
| | - Qiao Li
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan.
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21
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Rafieenia F, Abbaszadegan MR, Poursheikhani A, Razavi SMS, Jebelli A, Molaei F, Aghaee‐Bakhtiari SH. In silico evidence of high frequency of miRNA‐related SNPs in Esophageal Squamous Cell Carcinoma. J Cell Physiol 2019; 235:966-978. [DOI: 10.1002/jcp.29012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 05/31/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Fatemeh Rafieenia
- Medical Genetics Research Center Mashhad University of Medical Sciences Mashhad Iran
- Student Research Committee Mashhad University of Medical Sciences Mashhad Iran
| | - Mohammad Reza Abbaszadegan
- Medical Genetics Research Center Mashhad University of Medical Sciences Mashhad Iran
- Immunology Research Center Mashhad University of Medical Sciences Mashhad Iran
| | - Arash Poursheikhani
- Medical Genetics Research Center Mashhad University of Medical Sciences Mashhad Iran
| | | | - Amir Jebelli
- Stem Cell and Regenerative Medicine Research Department Iranian Academic Center for Education, Culture and Research (ACECR), Mashhad Branch Mashhad Iran
| | - Fatemeh Molaei
- Medical Genetics Research Center Mashhad University of Medical Sciences Mashhad Iran
| | - Seyed Hamid Aghaee‐Bakhtiari
- Bioinformatics Research Group Mashhad University of Medical Sciences Mashhad Iran
- Department of Medical Biotechnology, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
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22
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Ellsworth DL, Turner CE, Ellsworth RE. A Review of the Hereditary Component of Triple Negative Breast Cancer: High- and Moderate-Penetrance Breast Cancer Genes, Low-Penetrance Loci, and the Role of Nontraditional Genetic Elements. JOURNAL OF ONCOLOGY 2019; 2019:4382606. [PMID: 31379942 PMCID: PMC6652078 DOI: 10.1155/2019/4382606] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/23/2019] [Indexed: 12/31/2022]
Abstract
Triple negative breast cancer (TNBC), representing 10-15% of breast tumors diagnosed each year, is a clinically defined subtype of breast cancer associated with poor prognosis. The higher incidence of TNBC in certain populations such as young women and/or women of African ancestry and a unique pathological phenotype shared between TNBC and BRCA1-deficient tumors suggest that TNBC may be inherited through germline mutations. In this article, we describe genes and genetic elements, beyond BRCA1 and BRCA2, which have been associated with increased risk of TNBC. Multigene panel testing has identified high- and moderate-penetrance cancer predisposition genes associated with increased risk for TNBC. Development of large-scale genome-wide SNP assays coupled with genome-wide association studies (GWAS) has led to the discovery of low-penetrance TNBC-associated loci. Next-generation sequencing has identified variants in noncoding RNAs, viral integration sites, and genes in underexplored regions of the human genome that may contribute to the genetic underpinnings of TNBC. Advances in our understanding of the genetics of TNBC are driving improvements in risk assessment and patient management.
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Affiliation(s)
| | - Clesson E. Turner
- Murtha Cancer Center/Research Program, Uniformed Services University and Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Rachel E. Ellsworth
- Murtha Cancer Center/Research Program, Uniformed Services University and Walter Reed National Military Medical Center, Bethesda, MD, USA
- Henry M Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
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23
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MiR-21 binding site SNP within ITGAM associated with psoriasis susceptibility in women. PLoS One 2019; 14:e0218323. [PMID: 31211819 PMCID: PMC6581264 DOI: 10.1371/journal.pone.0218323] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 05/31/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Great progress has been made in the understanding of inflammatory processes in psoriasis. However, clarifying the role of genetic variability in processes regulating inflammation, including post-transcriptional regulation by microRNA (miRNA), remains a challenge. OBJECTIVES We therefore investigated single nucleotide polymorphisms (SNPs) with a predicted change in the miRNA/mRNA interaction of genes involved in the psoriasis inflammatory processes. METHODS Studied SNPs rs2910164 C/G-miR-146a, rs4597342 T/C-ITGAM, rs1368439 G/T-IL12B, rs1468488 C/T-IL17RA were selected using a bioinformatics analysis of psoriasis inflammation-associated genes. These SNPs were then genotyped using a large cohort of women with psoriasis (n = 241) and healthy controls (n = 516). RESULTS No significant association with psoriasis was observed for rs2910164, rs1368439, and rs1468488 genotypes. However, the major allele T of rs4597342 -ITGAM was associated with approximately 28% higher risk for psoriasis in comparison to the patients with the C allele (OR = 1.28, 95% CI 1.01-1.61, p = 0.037). In case of genotypes, the effect of the T allele indicates the dominant model of disease penetrance as the CT and TT genotypes increase the chance of psoriasis up to 42% in comparison to CC homozygotes of rs4597342 (OR = 1.42, 95% CI = 1.05-1.94, p = 0.025). CONCLUSION SNP rs4597342 in 3'UTR of ITGAM influencing miR-21 binding may be considered a risk factor for psoriasis development. Upregulated miR-21 in psoriasis is likely to inhibit CD11b production in the case of the rs4597342 T allele which may lead to Mac-1 dysfunction, resulting in an aberrant function of innate immune cells and leading to the production of cytokines involved in psoriasis pathogenesis.
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24
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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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Liu S, Dong H, Wu J, Wang C. Association of an miR-502-binding site polymorphism in the 3'-untranslated region of SET8 with colorectal cancer. Oncol Lett 2019; 17:3960-3964. [PMID: 30881512 DOI: 10.3892/ol.2019.10026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 11/07/2018] [Indexed: 01/04/2023] Open
Abstract
The histone methyltransferase SET8 is regulated by microRNA-502 through the binding site in its 3'-untranslated region, and the rs16917496 polymorphism at the miR-502-binding site in the SET8 gene has been implicated in a number of cancer types. The rs16917496 polymorphism including CC, CT and TT genotypes was analyzed in patients with colorectal cancer; the CC genotype was identified to be independently associated with longer post-operative survival times using multivariate analysis (relative risk, 2.406; 95% confidence interval, 1.017-5.691; P=0.046). In addition, decreased SET8 expression was associated with the SET8 CC genotype and longer survival times for patients with colorectal cancer. The results of the present study indicated that miR-502 mediates SET8 expression at least partly by altering the binding affinity between miR-502 and SET8 so as to modify the colorectal cancer outcome. The results indicate that SET8 may be a novel target for colorectal cancer therapy.
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Affiliation(s)
- Shuang Liu
- Department of Pathology, Bethune International Peace Hospital, Shijiazhuang, Hebei 050082, P.R. China
| | - Hailing Dong
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Jianhua Wu
- Animal Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Cuiju Wang
- Department of Gynaecology Ultrasound, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
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The Impact of IL-16 3'UTR Polymorphism rs859 on Lung Carcinoma Susceptibility among Chinese Han Individuals. BIOMED RESEARCH INTERNATIONAL 2018; 2018:8305745. [PMID: 30671474 PMCID: PMC6323476 DOI: 10.1155/2018/8305745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/29/2018] [Accepted: 12/04/2018] [Indexed: 12/20/2022]
Abstract
Lung carcinoma is the most common cancer and cause of cancer deaths among both males and females in China. Previously, genetic variants located in gene untranslated region have been well established as interfering factors in mRNA translation and confirmed playing critical roles in lung oncogenesis. However, the correlation between polymorphisms in gene 3′ untranslated region and lung cancer risk is less reported in China Han population. In this study, polymorphisms in 3′-untranslated region of IL-16, CYP24A1, and FBN1 were determined in 322 lung cancer patients and 384 healthy controls with the usage of Sequenom MassARRAY. The correlation between selected variants and lung cancer risk was examined by unconditional logistic regression analysis with or without adjustments for age, gender, smoking status, and alcohol drinking status. Additionally, stratification analysis was applied to detect the associations of SNPs with lung cancer in different subgroups. As the results, significant relationships were found between IL-16 rs859 and lung cancer susceptibility in recessive model (OR= 0.65, 95% CI: 0.44-0.96, P= 0.029) and log-additive model (OR= 0.76, 95% CI: 0.60-0.96, P= 0.019). Moreover, adjusted stratified analysis also revealed the important effects of IL-16 rs859 on lung cancer risk among individuals aged older than 50, males, and nondrinkers. IL-16 rs859 showed statistically significant evidence associated with susceptibility to lung adenocarcinoma and lung small cell carcinoma in Chinese Han population as well. Our research demonstrated that genetic variant rs859 of IL-16 3′UTR was associated with lung cancer risk in Chinese Han population and the result might be exploited as a new biomarker for lung cancer assessment and prevention.
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Farokhizadeh Z, Dehbidi S, Geramizadeh B, Yaghobi R, Malekhosseini SA, Behmanesh M, Sanati MH, Afshari A, Moravej A, Karimi MH. Association of MicroRNA Polymorphisms With Hepatocellular Carcinoma in an Iranian Population. Ann Lab Med 2018; 39:58-66. [PMID: 30215231 PMCID: PMC6143471 DOI: 10.3343/alm.2019.39.1.58] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 12/06/2017] [Accepted: 08/16/2018] [Indexed: 12/25/2022] Open
Abstract
Background Single nucleotide polymorphisms (SNPs) can modulate various biological processes by influencing microRNA (miRNA) biogenesis and altering target selection. Common SNPs may alter the processing of miRNA and may be associated with hepatocellular carcinoma (HCC). We investigated the relationship between miR-499A>G, miR-149C>T, miR-196a2T>C, and miR-146aG>C and HCC susceptibility, examining the interaction of the miRNAs with hepatitis B virus (HBV). Methods We evaluated the associations of miR-499A>G (rs3746444), miR-149C>T (rs2292832), miR-196a2T>C (rs11614913), and miR-146aG>C (rs2910164) with HCC susceptibility in 100 HCC patients (70 males and 30 females) and 120 healthy controls (70 males and 50 females), using the PCR-restriction fragment length polymorphism method. Results For miR-499A>G, the frequencies of the AG genotype and G allele were higher in female HCC patients than in female controls (P=0.02 and 0.045, respectively). The frequency of the A allele was higher in HBV-positive HCC patients than in controls (P=0.019). For miR-149C>T, the frequency of the CC genotype was higher in female HCC patients than in female controls (P=0.009). For miR-196a2T>C, the frequencies of the CT and CC genotypes and the C allele were higher in HBV-positive HCC patients than in controls (P<0.001, P=0.009, and P<0.001, respectively). The frequencies of miR-146aG>C polymorphisms did not differ between HCC patients and controls. Conclusions miR-499A>G, miR-149C>T, and miR-196a2T>C were associated with the development of HCC in women and/or that of HBV-related HCC. They can be considered genetic risk factors for the development of HCC among Iranians.
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Affiliation(s)
| | - Sahar Dehbidi
- Nour Danesh Institute of Higher Education, Mimeh, Iran
| | - Bita Geramizadeh
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ramin Yaghobi
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | | | | | - Afsoon Afshari
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Moravej
- Noncommunicable Diseases Research Centre, Fasa University of Medical Sciences, Fasa, Iran
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Shasttiri A, Rostamian Delavar M, Baghi M, Dehghani Ashkezari M, Ghaedi K. SNP rs10800708 within the KIF14 miRNA binding site is linked with breast cancer. Br J Biomed Sci 2018; 76:46-48. [DOI: 10.1080/09674845.2018.1509551] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- A Shasttiri
- Department of Biology, Islamic Azad University, Ashkezar, Iran
| | - M Rostamian Delavar
- Department of Biology, School of Sciences, University of Isfahan, Isfahan, Iran
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, Isfahan, Iran
| | - M Baghi
- Department of Biology, School of Sciences, University of Isfahan, Isfahan, Iran
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, Isfahan, Iran
| | | | - K Ghaedi
- Department of Biology, School of Sciences, University of Isfahan, Isfahan, Iran
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, Isfahan, Iran
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Hashemi M, Tabasi F, Bahari G, Taheri M, Ansari H. An updated meta-analysis on the association between 4-bp insertion/deletion (rs3783553) polymorphism within the 3`UTR of IL1A and the risk of cancer. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2018.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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30
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Bensen JT, Graff M, Young KL, Sethupathy P, Parker J, Pecot CV, Currin K, Haddad SA, Ruiz-Narváez EA, Haiman CA, Hong CC, Sucheston-Campbell LE, Zhu Q, Liu S, Yao S, Bandera EV, Rosenberg L, Lunetta KL, Ambrosone CB, Palmer JR, Troester MA, Olshan AF. A survey of microRNA single nucleotide polymorphisms identifies novel breast cancer susceptibility loci in a case-control, population-based study of African-American women. Breast Cancer Res 2018; 20:45. [PMID: 29871690 PMCID: PMC5989404 DOI: 10.1186/s13058-018-0964-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 03/28/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) regulate gene expression and influence cancer. Primary transcripts of miRNAs (pri-miRNAs) are poorly annotated and little is known about the role of germline variation in miRNA genes and breast cancer (BC). We sought to identify germline miRNA variants associated with BC risk and tumor subtype among African-American (AA) women. METHODS Under the African American Breast Cancer Epidemiology and Risk (AMBER) Consortium, genotyping and imputed data from four studies on BC in AA women were combined into a final dataset containing 224,188 miRNA gene single nucleotide polymorphisms (SNPs) for 8350 women: 3663 cases and 4687 controls. The primary miRNA sequence was identified for 566 miRNA genes expressed in Encyclopedia of DNA Elements (ENCODE) Tier 1 cell types and human pancreatic islets. Association analysis was conducted using logistic regression for BC status overall and by tumor subtype. RESULTS A novel BC signal was localized to an 8.6-kb region of 17q25.3 by four SNPs (rs9913477, rs1428882938, rs28585511, and rs7502931) and remained statistically significant after multiple test correction (odds ratio (OR) = 1.44, 95% confidence interval (CI) = 1.26-1.65; p = 3.15 × 10-7; false discovery rate (FDR) = 0.03). These SNPs reside in a genomic location that includes both the predicted primary transcript of the noncoding miRNA gene MIR3065 and the first intron of the gene for brain-specific angiogenesis inhibitor 1-associated protein 2 (BAIAP2). Furthermore, miRNA-associated SNPs on chromosomes 1p32.3, 5q32, and 3p25.1 were the strongest signals for hormone receptor, luminal versus basal-like, and HER2 enrichment status, respectively. A second phase of genotyping (1397 BC cases, 2418 controls) that included two SNPs in the 8.6-kb region was used for validation and meta-analysis. While neither rs4969239 nor rs9913477 was validated, when meta-analyzed with the original dataset their association with BC remained directionally consistent (OR = 1.29, 95% CI = 1.16-1.44 (p = 4.18 × 10-6) and OR = 1.33, 95% CI = 1.17-1.51 (p = 1.6 × 10-5), respectively). CONCLUSION Germline genetic variation indicates that MIR3065 may play an important role in BC development and heterogeneity among AA women. Further investigation to determine the potential functional effects of these SNPs is warranted. This study contributes to our understanding of BC risk in AA women and highlights the complexity in evaluating variation in gene-dense regions of the human genome.
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Affiliation(s)
- Jeannette T Bensen
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
| | - Mariaelisa Graff
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Kristin L Young
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Praveen Sethupathy
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | - Joel Parker
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Chad V Pecot
- Department of Medicine, Division of Oncology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Kevin Currin
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Biological and Biomedical Sciences Program, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Stephen A Haddad
- Slone Epidemiology Center at Boston University, Boston, MA, 02215, USA
| | - Edward A Ruiz-Narváez
- Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI, 48109, USA
| | - Christopher A Haiman
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California/Norris Comprehensive Cancer Center, Los Angeles, CA, 90033, USA
| | - Chi-Chen Hong
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | | | - Qianqian Zhu
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | - Song Liu
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | - Song Yao
- Department of Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | - Elisa V Bandera
- Cancer Prevention and Control, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, 08903, USA
| | - Lynn Rosenberg
- Slone Epidemiology Center at Boston University, Boston, MA, 02215, USA
| | - Kathryn L Lunetta
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, 02118, USA
| | - Christine B Ambrosone
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | - Julie R Palmer
- Slone Epidemiology Center at Boston University, Boston, MA, 02215, USA
| | - Melissa A Troester
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
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Diao L, Su H, Wei G, Li T, Gao Y, Zhao G, Guo Z. Prognostic Value of microRNA 502 Binding Site SNP in the 3′-Untranslated Region of the SET8 Gene in Patients with Non-Hodgkin's Lymphoma. TUMORI JOURNAL 2018. [DOI: 10.1177/1660.18180] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lanping Diao
- Department of Hematology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Huiling Su
- Department of Oncology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Guangchuan Wei
- Department of Ophthalmology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Tao Li
- Department of Epidemiology and Statistics, College of Public Health, Hebei Medical University, Shijiazhuang, China
| | - Yuhuan Gao
- Department of Hematology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Guimin Zhao
- Department of Hematology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Zhanjun Guo
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang
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CONCORD biomarker prediction for novel drug introduction to different cancer types. Oncotarget 2017; 9:1091-1106. [PMID: 29416679 PMCID: PMC5787421 DOI: 10.18632/oncotarget.23124] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 11/13/2017] [Indexed: 01/21/2023] Open
Abstract
Many cancer therapeutic agents have shown to be effective for treating multiple cancer types. Yet major challenges exist toward introducing a novel drug used in one cancer type to different cancer types, especially when a relatively small number of patients with the other cancer type often benefit from anti-cancer therapy with the drug. Recently, many novel agents were introduced to different cancer types together with companion biomarkers which were obtained or biologically assumed from the original cancer type. However, there is no guarantee that biomarkers from one cancer can directly predict a therapeutic response in another. To tackle this challenging question, we have developed a concordant expression biomarker-based technique ("CONCORD") that overcomes these limitations. CONCORD predicts drug responses from one cancer type to another by identifying concordantly co-expressed biomarkers across different cancer systems. Application of CONCORD to three standard chemotherapeutic agents and two targeted agents demonstrated its ability to accurately predict the effectiveness of a drug against new cancer types and predict therapeutic response in patients.
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Hashemi M, Bahari G, Sarhadi S, Eskandari E, Narouie B, Taheri M, Ghavami S. 4‐bp insertion/deletion (rs3783553) polymorphism within the 3′UTR of IL1A contributes to the risk of prostate cancer in a sample of Iranian population. J Cell Biochem 2017; 119:2627-2635. [DOI: 10.1002/jcb.26427] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 10/10/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Mohammad Hashemi
- Cellular and Molecular Research CenterZahedan University of Medical SciencesZahedanIran
- Department of Clinical Biochemistry, School of MedicineZahedan University of Medical SciencesZahedanIran
| | - Gholamreza Bahari
- Department of Clinical Biochemistry, School of MedicineZahedan University of Medical SciencesZahedanIran
| | - Shamim Sarhadi
- Faculty of Advanced Medical Sciences, Department of Medical BiotechnologyTabriz University of Medical SciencesTabrizIran
| | - Ebrahim Eskandari
- Department of Clinical Biochemistry, School of MedicineZahedan University of Medical SciencesZahedanIran
| | - Behzad Narouie
- Urology and Nephrology Research Center; Department of Urology, Shahid Labbafinejad Medical CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Mohsen Taheri
- Genetics of Non Communicable Disease Research CenterZahedan University of Medical SciencesZahedanIran
| | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, College of Medicine, Faculty of Health SciencesUniversity of ManitobaWinnipegCanada
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Deng N, Zhou H, Fan H, Yuan Y. Single nucleotide polymorphisms and cancer susceptibility. Oncotarget 2017; 8:110635-110649. [PMID: 29299175 PMCID: PMC5746410 DOI: 10.18632/oncotarget.22372] [Citation(s) in RCA: 187] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 10/03/2017] [Indexed: 12/12/2022] Open
Abstract
A large number of genes associated with various cancer types contain single nucleotide polymorphisms (SNPs). SNPs are located in gene promoters, exons, introns as well as 5'- and 3'- untranslated regions (UTRs) and affect gene expression by different mechanisms. These mechanisms depend on the role of the genetic elements in which the individual SNPs are located. Moreover, alterations in epigenetic regulation due to gene polymorphisms add to the complexity underlying cancer susceptibility related to SNPs. In this systematic review, we discuss the various genetic and epigenetic mechanisms involved in determining cancer susceptibility related to various SNPs located in different genetic elements. We also discuss the diagnostic potential of these SNPs and the focus for future studies.
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Affiliation(s)
- Na Deng
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China.,Department of Hematology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Heng Zhou
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Hua Fan
- Department of Hematology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China.,National Clinical Research Center for Digestive Diseases, Xi'an 110001, China
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Narouie B, Ziaee SAM, Basiri A, Hashemi M. Functional polymorphism at the miR-502-binding site in the 3' untranslated region of the SETD8 gene increased the risk of prostate cancer in a sample of Iranian population. Gene 2017; 626:354-357. [PMID: 28578017 DOI: 10.1016/j.gene.2017.05.060] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/20/2017] [Accepted: 05/31/2017] [Indexed: 12/30/2022]
Abstract
MicroRNAs (miRNAs), a class of non-coding RNAs, bind to the 3' untranslated regions (3'-UTRs) of target mRNAs and regulate gene expression. Genetic variations in miRNA binding domains influence the susceptibility to several diseases such as cancer. Several studies investigated the impact of single-nucleotide polymorphism (SNP) rs16917496 T>C within the 3'-UTR of SETD8 on cancer susceptibility, but the results were controversial. In addition, no study has been conducted to inspect the impact of this SNP in prostate cancer (PCa). Thus, the present study aimed to find out the possible association between rs16917496 polymorphism at the 3'UTR of SETD8 and PCa risk. This case-control study was done on 169 patients with pathologically confirmed PCa and 182 benign prostatic hyperplasia (BPH). Genotyping was done using PCR-RFLP method. The findings revealed that rs16917496 variant significantly increased the risk of PCa in codominant (OR=2.54, 95%CI=1.50-4.30, p<0.001, TC VS TT and OR=3.03, 95%CI=1.63-5.66, p<0.001, CC vs TT), dominant (OR=2.86, 95%CI=1.62-4.43, p<0.001, p<0.001). The C allele significantly increased the risk of PCa (OR=1.72, 95%CI=1.28-2.33, p<0.001) compared to T allele. In conclusion, the findings indicated that rs16917496 polymorphism may be a risk for predisposition to PCa in an Iranian population. Further studies with larger sample sizes and different ethnicities are required to confirm our findings.
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Affiliation(s)
- Behzad Narouie
- Urology and Nephrology Research Center, Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran 198396-3113, Iran
| | - Seyed Amir Mohsen Ziaee
- Urology and Nephrology Research Center, Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran 198396-3113, Iran
| | - Abbas Basiri
- Urology and Nephrology Research Center, Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran 198396-3113, Iran
| | - Mohammad Hashemi
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan 98167-43181, Iran; Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan 98167-43181, Iran.
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MicroRNA Regulation of Endothelial Junction Proteins and Clinical Consequence. Mediators Inflamm 2016; 2016:5078627. [PMID: 27999452 PMCID: PMC5143735 DOI: 10.1155/2016/5078627] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 11/03/2016] [Indexed: 12/18/2022] Open
Abstract
Cellular junctions play a critical role in structural connection and signal communication between cells in various tissues. Although there are structural and functional varieties, cellular junctions include tight junctions, adherens junctions, focal adhesion junctions, and tissue specific junctions such as PECAM-1 junctions in endothelial cells (EC), desmosomes in epithelial cells, and hemidesmosomes in EC. Cellular junction dysfunction and deterioration are indicative of clinical diseases. MicroRNAs (miRNA) are ~20 nucleotide, noncoding RNAs that play an important role in posttranscriptional regulation for almost all genes. Unsurprisingly, miRNAs regulate junction protein gene expression and control junction structure integrity. In contrast, abnormal miRNA regulation of junction protein gene expression results in abnormal junction structure, causing related diseases. The major components of tight junctions include zonula occluden-1 (ZO-1), claudin-1, claudin-5, and occludin. The miRNA regulation of ZO-1 has been intensively investigated. ZO-1 and other tight junction proteins such as claudin-5 and occludin were positively regulated by miR-126, miR-107, and miR21 in different models. In contrast, ZO-1, claudin-5, and occludin were negatively regulated by miR-181a, miR-98, and miR150. Abnormal tight junction miRNA regulation accompanies cerebral middle artery ischemia, brain trauma, glioma metastasis, and so forth. The major components of adherens junctions include VE-cadherin, β-catenin, plakoglobin, P120, and vinculin. VE-cadherin and β-catenin were regulated by miR-9, miR-99b, miR-181a, and so forth. These regulations directly affect VE-cadherin-β-catenin complex stability and further affect embryo and tumor angiogenesis, vascular development, and so forth. miR-155 and miR-126 have been shown to regulate PECAM-1 and affect neutrophil rolling and EC junction integrity. In focal adhesion junctions, the major components are integrin β4, paxillin, and focal adhesion kinase (FAK). Integrin β4 has been regulated by miR-184, miR-205, and miR-9. Paxillin has been regulated by miR-137, miR-145, and miR-218 in different models. FAK has been regulated by miR-7, miR-138, and miR-135. Deregulation of miRNAs is caused by viral infections, tumorigenesis, and so forth. By regulation of posttranscription, miRNAs manipulate junction protein expression in all cellular processes and further determine cellular fate and development. Elucidation of these regulatory mechanisms will become a new alternative therapy for many diseases, such as cancers and inflammatory diseases.
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Cava C, Colaprico A, Bertoli G, Bontempi G, Mauri G, Castiglioni I. How interacting pathways are regulated by miRNAs in breast cancer subtypes. BMC Bioinformatics 2016; 17:348. [PMID: 28185585 PMCID: PMC5123339 DOI: 10.1186/s12859-016-1196-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND An important challenge in cancer biology is to understand the complex aspects of the disease. It is increasingly evident that genes are not isolated from each other and the comprehension of how different genes are related to each other could explain biological mechanisms causing diseases. Biological pathways are important tools to reveal gene interaction and reduce the large number of genes to be studied by partitioning it into smaller paths. Furthermore, recent scientific evidence has proven that a combination of pathways, instead than a single element of the pathway or a single pathway, could be responsible for pathological changes in a cell. RESULTS In this paper we develop a new method that can reveal miRNAs able to regulate, in a coordinated way, networks of gene pathways. We applied the method to subtypes of breast cancer. The basic idea is the identification of pathways significantly enriched with differentially expressed genes among the different breast cancer subtypes and normal tissue. Looking at the pairs of pathways that were found to be functionally related, we created a network of dependent pathways and we focused on identifying miRNAs that could act as miRNA drivers in a coordinated regulation process. CONCLUSIONS Our approach enables miRNAs identification that could have an important role in the development of breast cancer.
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Affiliation(s)
- Claudia Cava
- Institute of Molecular Bioimaging and Physiology (IBFM), National Research Council (CNR), Milan, Italy
| | - Antonio Colaprico
- Interuniversity Institute of Bioinformatics in Brussels (IB), Brussels, Belgium
- Machine Learning Group, ULB, Brussels, Belgium
| | - Gloria Bertoli
- Institute of Molecular Bioimaging and Physiology (IBFM), National Research Council (CNR), Milan, Italy
| | - Gianluca Bontempi
- Interuniversity Institute of Bioinformatics in Brussels (IB), Brussels, Belgium
- Machine Learning Group, ULB, Brussels, Belgium
| | - Giancarlo Mauri
- Department of Informatics, Systems and Communications, University of Milan–Bicocca, Milan, Italy
| | - Isabella Castiglioni
- Institute of Molecular Bioimaging and Physiology (IBFM), National Research Council (CNR), Milan, Italy
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Xu X, Chen G, Wu L, Liu L. Association of genetic polymorphisms in PTEN and additional gene-gene interaction with risk of esophageal squamous cell carcinoma in Chinese Han population. Dis Esophagus 2016; 29:944-949. [PMID: 26541596 DOI: 10.1111/dote.12428] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This study aims to investigate the association of five single nucleotide polymorphisms (SNPs) in the phosphatase and tensin homologue (PTEN) gene and additional role of gene-gene interaction with esophageal squamous cell carcinoma (ESCC), based on a Chinese case-control study. A total of 871 subjects (420 males and 451 females) were selected, including 425 ESCC cases and 446 controls. Five SNPs were selected for genotyping in the case-control study: rs2735343, rs555895, rs2299939, rs17431184 and rs701848. Logistic regression model was used to examine the association between five SNP and ESCC, and additional interaction among five SNP, odds ratio (OR) and 95% confident interval (95%CI) were calculated. All genotypes were distributed according to Hardy-Weinberg equilibrium in controls. The carriers of homozygous mutant of rs2735343 and rs701848 polymorphism revealed increased ESCC risk than those with wild-type homozygotes, and OR (95%CI) were 1.27 (1.09-2.08) and 1.45 (1.17-1.98), respectively. We also found a potential gene-gene interaction between rs2735343 and rs701848 (P = 0.0010), and a potential gene-gene interaction among all five SNP (P = 0.0107) after covariates adjustment. Subjects with TC or CC of rs2735343 and TC or CC of rs701848 genotype have highest ESCC risk, compared to subjects with TT of rs2735343 and TT of rs701848 genotype, OR (95% CI) was 2.76 (1.37-3.45) after covariates adjustment. The carriers of homozygous mutant of rs2735343 and rs701848 polymorphism revealed increased ESCC risk. We also found a potential gene-gene interaction between rs2735343 and rs701848 and a potential gene-gene interaction among all five SNPs.
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Affiliation(s)
- X Xu
- Department of Gastroenterology, Yixing People's Hospital, Wuxi, Jiangsu, China
| | - G Chen
- Department of Gastroenterology, Yixing People's Hospital, Wuxi, Jiangsu, China
| | - L Wu
- Department of Gastroenterology, Yixing People's Hospital, Wuxi, Jiangsu, China
| | - L Liu
- Department of Gastroenterology, Yixing People's Hospital, Wuxi, Jiangsu, China
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Wang C, Wu J, Zhao Y, Guo Z. miR-502 medaited histone methyltransferase SET8 expression is associated with outcome of esophageal squamous cell carcinoma. Sci Rep 2016; 6:32921. [PMID: 27605386 PMCID: PMC5015112 DOI: 10.1038/srep32921] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 08/16/2016] [Indexed: 11/21/2022] Open
Abstract
The histone methyltransferase SET8, whose expression is regulated by miR-502 though the binding site in the 3′ UTR of SET8, implicated in cancer development. Single nucleotide polymorphism (SNP) of rs16917496 located in the miR-502 and SET8 binding site was analyzed in esophageal squamous cell carcinoma (ESCC) patients, the SET8 C/C genotype was independently associated with longer post-operative survival by multivariate analysis (relative risk, 2.250; 95% CI, 1.041–4.857; p = 0.039). Moreover, the reduced SET8 expression mediated by SET8 C/C genotype was associated with longer ESCC survival. Functional assay indicated that the SET8 knock down could inhibit proliferation and promote apoptosis of ESCC cells. The subsequent assay also showed the markedly inhibition of ESCC cell migration and invasion by SET8 knock down. Our data suggested that the altering SET8 expression, which is mediated at least partly by miR-502 through changing the binding affinity between miR-502 and SET8 3′ UTR, could modify the ESCC outcome by inhibiting the proliferation and invasion as well as promoting the apoptosis of ECSS cell. Our data indicated that SET8 was a new target for ESCC therapy.
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Affiliation(s)
- Cuiju Wang
- Department of Gynaecology Ultrasound, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P. R. China
| | - Jianhua Wu
- Animal Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P. R. China
| | - Yue Zhao
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P. R. China
| | - Zhanjun Guo
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P. R. China
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Salimi Z, Sadeghi S, Tabatabaeian H, Ghaedi K, Fazilati M. rs11895168 C allele and the increased risk of breast cancer in Isfahan population. Breast 2016; 28:89-94. [DOI: 10.1016/j.breast.2016.05.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 04/26/2016] [Accepted: 05/13/2016] [Indexed: 12/19/2022] Open
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Wang C, Zhao Y, Ming Y, Zhao S, Guo Z. A polymorphism at the microRNA binding site in the 3'-untranslated region of C14orf101 is associated with the risk of gastric cancer development. Exp Ther Med 2016; 12:1867-1872. [PMID: 27602096 DOI: 10.3892/etm.2016.3521] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 04/25/2016] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs (miRNAs) bind to the 3'-untranslated regions (3'-UTRs) of mRNAs, affecting translation and regulating cell differentiation, tumorigenesis and apoptosis. Genetic polymorphisms in these regions in target genes are able to affect the binding affinity between miRNA and target genes, ultimately affecting the expression of individual miRNAs. In the present case-control study, genotyping of 5 microRNA single nucleotide polymorphisms (SNPs) located at the binding site of the 3'-UTR of RYR3 (rs1044129), C14orf101 (rs4901706), KIAA0423 (rs1053667), GOLGA7 (rs11337) and KRT81 (rs3660) genes was assessed in order to investigate its role in gastric cancer (GC). The results indicated that the rs4901706 SNP, which is located in the 3'-UTR of C14orf101, was associated with GC development risk, as determined by χ2 analysis (relative risk, 1.630; 95% confidence interval, 1.070-2.483; P=0.022). A Renilla/luciferase reporter assay also indicated the different binding affinity between the SNP of rs4901706 and microRNA. In conclusion, rs4901706 SNP of C14orf101 gene in the microRNA binding site may be used as a valuable biomarker when predicting GC risk.
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Affiliation(s)
- Cuiju Wang
- Department of Gynaecology Ultrasound, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Yufei Zhao
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Yanming Ming
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Shengnan Zhao
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Zhanjun Guo
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
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Abstract
Cancer classification based on site of origin is very significant research issue for prediction and treatment of cancer. This paper is addressing the problem of cancer classification for Homo Sapiens genes composed of amino acid chain. Cancer gene network is realized by equivalent electrical circuits based on hydrophilic/ hydrophobic property of amino acid and a classifier is modeled to determine the cancer origin. The phase value, peak gain value and shape of Nyquist curve of network model are investigated to characterize different types of cancer gene origins. The model achieves 81.09% of classification accuracy and proves to be more sensitive and simple, since it shows 69% better performance compare to the existing nucleotide based method. The proposed classifier successfully predicts the site of origin of 93 cancer gene samples.
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β-Mangostin suppresses LA-7 cells proliferation in vitro and in vivo: Involvement of antioxidant enzyme modulation; suppression of matrix metalloproteinase and α6β4 integrin signalling pathways. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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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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45
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Peng C, Guo Z, Wu X, Zhang XL. A polymorphism at the microRNA binding site in the 3' untranslated region of RYR3 is associated with outcome in hepatocellular carcinoma. Onco Targets Ther 2015; 8:2075-9. [PMID: 26309413 PMCID: PMC4539090 DOI: 10.2147/ott.s85856] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Objective MicroRNAs can bind to the 3′ untranslated regions (UTRs) of messenger RNAs, where they interfere with the translation of targeting genes, thereby regulating cell differentiation, apoptosis, and tumorigenesis. In this study, three microRNA binding site single nucleotide polymorphisms (SNPs) located in the 3′ UTR of RYR3 (rs1044129), C14orf101 (rs4901706), and KIAA0423 (rs1053667) were genotyped to assess their relationships with the risks and outcomes of hepatocellular carcinoma (HCC). Methods The SNPs were genotyped with the ligation detection reaction method. Renilla luciferase reporter assays were used to measure the binding affinity between microRNA 367 and RYR3. Survival curves were calculated using the Kaplan–Meier method, and comparisons between the curves were made using the log-rank test. Multivariate survival analysis was performed using a Cox proportional hazards model. Results It was found that rs1044129 at the 3′ UTR of RYR3 was related to postoperative survival in HCC, with the AA type associated with longer survival times as per the log-rank test. After adjusting with the Cox model, rs104419 was identified as an independent predictor of HCC survival (relative risk: 1.812; 95% confidence interval: 1.026–3.201; P=0.041). Luciferase analysis also indicated the different binding affinities between the SNPs of rs1044129 and microRNA 367. Conclusion The SNP in the microRNA binding site of RYR3 can be used as a valuable biomarker when predicting HCC outcomes.
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Affiliation(s)
- Chenxing Peng
- Department of Gastroenterology and Hepatology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Zhanjun Guo
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Xiaoyan Wu
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Xiao-Lan Zhang
- Department of Gastroenterology and Hepatology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
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YANG FAN, HU ANFENG, ZHAO DEWEI, GUO LIN, YANG LEI, WANG BENJIE, TIAN FENGDE, LIU BAOYI, HUANG SHIBO, XIE HUI. An insertion/deletion polymorphism at the microRNA-122 binding site in the interleukin-1α 3′-untranslated region is associated with a risk for osteoarthritis. Mol Med Rep 2015; 12:6199-206. [DOI: 10.3892/mmr.2015.4121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 05/13/2015] [Indexed: 11/06/2022] Open
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El Hajj P, Gilot D, Migault M, Theunis A, van Kempen LC, Salés F, Fayyad-Kazan H, Badran B, Larsimont D, Awada A, Bachelot L, Galibert MD, Ghanem G, Journe F. SNPs at miR-155 binding sites of TYRP1 explain discrepancy between mRNA and protein and refine TYRP1 prognostic value in melanoma. Br J Cancer 2015; 113:91-8. [PMID: 26068396 PMCID: PMC4647532 DOI: 10.1038/bjc.2015.194] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 03/19/2015] [Accepted: 04/29/2015] [Indexed: 01/01/2023] Open
Abstract
Background: We previously demonstrated an inverse correlation between tyrosinase-related protein 1 (TYRP1) mRNA expression in melanoma metastases and patient survival. However, TYRP1 protein was not detected in half of tissues expressing mRNA and did not correlate with survival. Based on a study reporting that 3′ untranslated region (UTR) of TYRP1 mRNA contains two miR-155-5p (named miR-155) binding sites exhibiting single-nucleotide polymorphisms (SNPs) that promote (matched miRNA–mRNA interaction) mRNA decay or not (mismatched), we aimed to investigate the role of miR-155 in the regulation of TYRP1 mRNA expression and protein translation accounting for these SNPs. Methods: The effect of miR-155 on TYRP1 mRNA/protein expression was evaluated in two melanoma cell lines harbouring matched or mismatched miR-155–TYRP1 mRNA interaction after transfection with pre-miR-155. In parallel, 192 skin and lymph node melanoma metastases were examined for TYRP1 mRNA/protein, miR-155 and SNPs and correlated with patient survival. TYRP1 mRNA, SNPs at its 3′UTR and miR-155 were analysed by RT–qPCR, whereas TYRP1 protein was evaluated by western blot in cell lines and by immunohistochemistry in metastatic tissues. Results: The miR-155 induced a dose-dependent TYRP1 mRNA decay and hampered its translation into protein in the line with the ‘match' genotype. In melanoma metastases, TYRP1 mRNA inversely correlated with miR-155 expression but not with TYRP1 protein in the ‘match' group, whereas it positively correlated with protein but not with miR-155 in the ‘mismatch' group. Consequently, in the latter group, TYRP1 protein inversely correlated with survival. Conclusion: Polymorphisms in 3′UTR of TYRP1 mRNA can affect TYRP1 mRNA regulation by miR-155 and its subsequent translation into protein. These SNPs can render TYRP1 mRNA and protein expression nonsusceptible to miR-155 activity and disclose a prognostic value for TYRP1 protein in a subgroup of melanoma patients. These data support the interest in the prognostic value of melanogenic markers and propose TYRP1 to refine prognosis in patients with advanced disease.
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Affiliation(s)
- P El Hajj
- Laboratory of Oncology and Experimental Surgery, Institut Jules Bordet, Université Libre de Bruxelles, 1 Rue Heger-Bordet, 1000 Brussels, Belgium
| | - D Gilot
- CNRS UMR 6290, Université de Rennes 1, 2 Avenue du Pr. Léon Bernard, 35000 Rennes, France
| | - M Migault
- CNRS UMR 6290, Université de Rennes 1, 2 Avenue du Pr. Léon Bernard, 35000 Rennes, France
| | - A Theunis
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, 1 Rue Heger-Bordet, 1000 Brussels, Belgium
| | - L C van Kempen
- Department of Pathology, McGill University and Lady Davis Institute for Medical Research, Jewish General Hospital, 3755 Chemin de la Côte-Sainte-Catherine, H3T 1E2 Montreal, QC, Canada
| | - F Salés
- Laboratory of Oncology and Experimental Surgery, Institut Jules Bordet, Université Libre de Bruxelles, 1 Rue Heger-Bordet, 1000 Brussels, Belgium
| | - H Fayyad-Kazan
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles, 1 Rue Heger-Bordet, 1000 Brussels, Belgium
| | - B Badran
- Department of Biochemistry, Lebanese University, Rafic Campus, 1003 Hadath-Beirut, Lebanon
| | - D Larsimont
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, 1 Rue Heger-Bordet, 1000 Brussels, Belgium
| | - A Awada
- Clinic of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, 1 Rue Heger-Bordet, 1000 Brussels, Belgium
| | - L Bachelot
- CNRS UMR 6290, Université de Rennes 1, 2 Avenue du Pr. Léon Bernard, 35000 Rennes, France
| | - M-D Galibert
- CNRS UMR 6290, Université de Rennes 1, 2 Avenue du Pr. Léon Bernard, 35000 Rennes, France
| | - G Ghanem
- Laboratory of Oncology and Experimental Surgery, Institut Jules Bordet, Université Libre de Bruxelles, 1 Rue Heger-Bordet, 1000 Brussels, Belgium
| | - F Journe
- Laboratory of Oncology and Experimental Surgery, Institut Jules Bordet, Université Libre de Bruxelles, 1 Rue Heger-Bordet, 1000 Brussels, Belgium
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SNP rs1049430 in the 3'-UTR of SH3GL2 regulates its expression: Clinical and prognostic implications in head and neck squamous cell carcinoma. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1059-67. [PMID: 25728707 DOI: 10.1016/j.bbadis.2015.02.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 02/20/2015] [Indexed: 11/21/2022]
Abstract
Single nucleotide polymorphisms (SNPs) in the 3'-UTR region are emerging cis-regulatory factors associated with the occurrences of several human diseases. SH3GL2, which is located at chromosome 9p21-22, is associated with hyperplastic/mildly dysplastic lesions of the head and neck and has a long 3'-UTR with multiple SNPs. The aim of the present study was to determine the susceptible allele(s) in the 3'-UTR SNPs of SH3GL2 in head and neck squamous cell carcinoma (HNSCC). First, we screened the genotypes of all SNPs located in the 3'-UTR of SH3GL2 in 110 controls and 147 cases in Indian populations by sequencing. A SNP (rs1049430:>G/T) that showed only heterozygosity was further confirmed by genotyping with an Illumina GoldenGate platform in 530 controls and 764 cases. Genotype-specific survival analysis of the HNSCC patients was performed. In addition, genotype-specific mRNA stability, isoform expression and protein expression were analyzed. SNP rs1049430 was not associated with disease occurrence, but it was associated with poor patient outcome. The G allele was associated with decreased SH3GL2 mRNA stability, differential splicing and low protein expression. Thus, our data demonstrate that the presence of the susceptible G allele in SNP rs1049430 is associated with the inactivation of SH3GL2 and could be used as a prognostic marker of HNSCC.
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Graveel CR, Calderone HM, Westerhuis JJ, Winn ME, Sempere LF. Critical analysis of the potential for microRNA biomarkers in breast cancer management. BREAST CANCER-TARGETS AND THERAPY 2015; 7:59-79. [PMID: 25759599 PMCID: PMC4346363 DOI: 10.2147/bctt.s43799] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Breast cancer is a complex and heterogeneous disease. Signaling by estrogen receptor (ER), progesterone receptor (PR), and/or human EGF-like receptor 2 (HER2) is a main driver in the development and progression of a large majority of breast tumors. Molecular characterization of primary tumors has identified major subtypes that correlate with ER/PR/HER2 status, and also subgroup divisions that indicate other molecular and cellular features of the tumors. While some of these research findings have been incorporated into clinical practice, several challenges remain to improve breast cancer management and patient survival, for which the integration of novel biomarkers into current practice should be beneficial. microRNAs (miRNAs) are a class of short non-coding regulatory RNAs with an etiological contribution to breast carcinogenesis. miRNA-based diagnostic and therapeutic applications are rapidly emerging as novel potential approaches to manage and treat breast cancer. Rapid technological development enables specific and sensitive detection of individual miRNAs or the entire miRNome in tissues, blood, and other biological specimens from breast cancer patients. This review focuses on recent miRNA research and its potential to address unmet clinical needs and challenges. The four sections presented discuss miRNA findings in the context of the following clinical challenges: biomarkers for early detection; prognostic and predictive biomarkers for treatment decisions using targeted therapies against ER and HER2; diagnostic and prognostic biomarkers for subgrouping of triple-negative breast cancer, for which there are currently no targeted therapies; and biomarkers for monitoring and characterization of metastatic breast cancer. The review concludes with a critical analysis of the current state of miRNA breast cancer research and the need for further studies using large patient cohorts under well-controlled conditions before considering the clinical implementation of miRNA biomarkers.
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Affiliation(s)
- Carrie R Graveel
- Breast Cancer Signaling and Therapeutics Team, Program in Molecular Oncology and Pre-clinical Therapeutics, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Heather M Calderone
- Laboratory of microRNA Diagnostics and Therapeutics, Program in Skeletal Disease and Tumor Microenvironment, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Jennifer J Westerhuis
- Laboratory of microRNA Diagnostics and Therapeutics, Program in Skeletal Disease and Tumor Microenvironment, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Mary E Winn
- Bioinformatics and Biostatistics Core, Program for Technologies and Cores, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Lorenzo F Sempere
- Laboratory of microRNA Diagnostics and Therapeutics, Program in Skeletal Disease and Tumor Microenvironment, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI, USA
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Wang T, Huang B, Guo R, Ma J, Peng C, Zu X, Tang H, Lei X. A let-7b binding site SNP in the 3'-UTR of the Bcl-xL gene enhances resistance to 5-fluorouracil and doxorubicin in breast cancer cells. Oncol Lett 2015; 9:1907-1911. [PMID: 25789066 PMCID: PMC4356428 DOI: 10.3892/ol.2015.2938] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 12/08/2014] [Indexed: 12/13/2022] Open
Abstract
The development of acquired resistance to chemotherapy is a major obstacle in the successful treatment of cancer. In breast cancer cells, B-cell lymphoma-extra large (Bcl-xL) is involved in the development of resistance to various chemotherapeutic agents; therefore, preliminary biological prediction was performed to identify a putative binding site for let-7b in the 3'-untranslated region (UTR) of the Bcl-xL gene and a single nucleotide polymorphism (SNP) within this binding region. The present study investigated the association between the SNP rs3208684 A>C and chemotherapeutic agent resistance in breast cancer cells. The data indicated that let-7b negatively regulates the expression of Bcl-xL and appears to sensitize MCF-7 cells to the chemotherapeutic agents 5-fluorouracil (5-FU) and doxorubicin. Furthermore, the SNP rs3208684 A>C was demonstrated to enhance Bcl-xL protein expression by disrupting the binding of let-7b to the 3'-UTR of Bcl-xL and, in MCF-7 cells, overexpression of let-7b in the presence of a mutant Bcl-xL 3'-UTR (C allele) significantly increased 5-FU and doxorubicin resistance. Thus, the results of the present study demonstrate that the SNP rs3208684 A>C may upregulate Bcl-xL protein expression and enhance the resistance of the MCF-7 cells to 5-FU and doxorubicin by decreasing the binding of let-7b to the 3'-UTR of Bcl-xL.
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Affiliation(s)
- Ting Wang
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan 421001, P.R. China ; Department of Pharmacy, The Second Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Bin Huang
- Department of Pharmacy, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Rui Guo
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Jin Ma
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Cuiying Peng
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Xuyu Zu
- Department of Pharmacy, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Huifang Tang
- Department of Pharmacy, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Xiaoyong Lei
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan 421001, P.R. China
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