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Heydari M, Hosseinzadeh Colagar A, Moudi E. Mutant Allele of CD44 (rs8193C>T) and Pum2 Regulatory Element as A Prognosis Factor of Prostate Neoplasms: A Case-Control and In Silico Studies. CELL JOURNAL 2022; 24:723-731. [PMID: 36527344 PMCID: PMC9790067 DOI: 10.22074/cellj.2022.8468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Expression of CD44 variant 6 (CD44v6) as a homing-associated cell adhesion molecule (HCAM), has proved to change most cancer cells. Aim of the study is the effect of mutant allele of CD44 (rs8193C>T) and Pum2 regulatory element as a prognosis factor of prostate neoplasms: a case-control and in silico studies in the Mazandaran province-Iran. MATERIALS AND METHODS In a case-control study, CD44-rs8193C>T genotyping of the 420 prostate neoplasms (210 benign prostatic hyperplasia (BPH) patients and 210 prostate cancer patients) and 150 healthy samples are performed by the touchdown polymerase chain reaction with confronting two-pair primers (PCR-CTPP) method. The T mutant allele effects on the mRNA structure and cell pathways were also investigated in silico methods. RESULTS Our results showed that the increase of T mutant allele frequency was significantly associated with BPH compared with prostate cancer. Furthermore, results showed TT genotype was significantly associated with BPH [odds ratio (OR)=0.572 and P=0.015], and also influenced the CD44v6 transcript secondary structure, miRNA binding, and regulatory element-binding site for Pum2 protein. Attachment of Pum2 to standard CD44 transcript may lead to transcript isoform-switching and shift-expression to a variety of CD44 isoforms, which can trigger some of the cell signaling pathways, such as Nanog-Stat, PKC-Nanog, and PKC-Twist. CONCLUSION Based on this, the presence of the T mutant allele of CD44 (rs8193C>T) in the populations may create a regulatory element-binding site for Pum2. So, it could be known as a prognosis factor and prediction of prostate neoplasms. However, more comprehensive studies in different populations (with various ethnicities and large population sizes), and also CD44v6 gene expression studies in protein and transcript levels are required to confirm our data.
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Affiliation(s)
- Mohammadkazem Heydari
- Department of Molecular and Cell Biology, Faculty of Science, University of Mazandaran, Babolsar, Iran
| | - Abasalt Hosseinzadeh Colagar
- Department of Molecular and Cell Biology, Faculty of Science, University of Mazandaran, Babolsar, Iran,P.O.Box: 47416-95447Department of Molecular and Cell BiologyFaculty of ScienceUniversity of MazandaranBabolsarIran
| | - Emadoddin Moudi
- Department of Urology, Babol University of Medical Sciences, Babol, Iran
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Lange M, Begolli R, Giakountis A. Non-Coding Variants in Cancer: Mechanistic Insights and Clinical Potential for Personalized Medicine. Noncoding RNA 2021; 7:47. [PMID: 34449663 PMCID: PMC8395730 DOI: 10.3390/ncrna7030047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/26/2021] [Accepted: 08/01/2021] [Indexed: 12/11/2022] Open
Abstract
The cancer genome is characterized by extensive variability, in the form of Single Nucleotide Polymorphisms (SNPs) or structural variations such as Copy Number Alterations (CNAs) across wider genomic areas. At the molecular level, most SNPs and/or CNAs reside in non-coding sequences, ultimately affecting the regulation of oncogenes and/or tumor-suppressors in a cancer-specific manner. Notably, inherited non-coding variants can predispose for cancer decades prior to disease onset. Furthermore, accumulation of additional non-coding driver mutations during progression of the disease, gives rise to genomic instability, acting as the driving force of neoplastic development and malignant evolution. Therefore, detection and characterization of such mutations can improve risk assessment for healthy carriers and expand the diagnostic and therapeutic toolbox for the patient. This review focuses on functional variants that reside in transcribed or not transcribed non-coding regions of the cancer genome and presents a collection of appropriate state-of-the-art methodologies to study them.
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Affiliation(s)
- Marios Lange
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece; (M.L.); (R.B.)
| | - Rodiola Begolli
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece; (M.L.); (R.B.)
| | - Antonis Giakountis
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece; (M.L.); (R.B.)
- Institute for Fundamental Biomedical Research, B.S.R.C “Alexander Fleming”, 34 Fleming Str., 16672 Vari, Greece
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3
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Badal S, Aiken W, Morrison B, Valentine H, Bryan S, Gachi A, Ragin C. Disparities in prostate cancer incidence and mortality rates: Solvable or not? Prostate 2020; 80:3-16. [PMID: 31702061 PMCID: PMC8378246 DOI: 10.1002/pros.23923] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 10/18/2019] [Indexed: 12/21/2022]
Abstract
Prostate cancer (PCa) is recognized as a disease possessing not only great variation in its geographic and racial distribution but also tremendous variation in its potential to cause morbidity and death and it, therefore, ought not to be considered a homogenous disease entity. Morbidity and death from PCa are disproportionately higher in men of African ancestry (MAA) who are generally observed to have more aggressive disease and worse outcomes following treatment compared to men of European ancestry (MEA). The higher rates of PCa among MAA relative to MEA appear to be multifactorial and related to inherent differences in biological aggressiveness; a continued lack of awareness of the disease and methods of prevention; a lower prevalence of screen-detected PCa; comparatively lower access to quality healthcare as well as systemic and institutionalized disparities in the administration of optimal care to MAA in developed countries such as the United States of America where high-quality care is available. Even when access to quality healthcare is assured in equal access settings, it appears that MAA still have worse outcomes after PCa treatment stage-for-stage and grade-for-grade compared to MEA, suggesting that, inherent racial, ethnic and biological differences are paramount in predicting poor outcomes. This review has explored the different contributing factors to the current disparities in PCa incidence and mortality rates with emphasis on the incongruence in how research has been conducted in understanding the disease towards developing therapies.
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Affiliation(s)
- Simone Badal
- Department of Basic Medical Sciences, Faculty of Medical Sciences, University of the West Indies, Kingston, Jamaica
| | - William Aiken
- Department of Surgery, Faculty of Medical Sciences, University of the West Indies, Kingston, Jamaica
| | - Belinda Morrison
- Department of Surgery, Faculty of Medical Sciences, University of the West Indies, Kingston, Jamaica
| | - Henkel Valentine
- Department of Basic Medical Sciences, Faculty of Medical Sciences, University of the West Indies, Kingston, Jamaica
| | - Sophia Bryan
- Department of Basic Medical Sciences, Faculty of Medical Sciences, University of the West Indies, Kingston, Jamaica
| | - Andrew Gachi
- Department of pathology, Aga Khan University Hospital, 3 Avenue, Parklands, Nairobi, Kenya
| | - Camille Ragin
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, PA, USA
- African Caribbean Cancer Consortium
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Mayer M, Selig K, Tüttelmann F, Dinkel A, Gschwend JE, Herkommer K. Interest in, willingness-to-pay for and willingness-to-recommend genetic testing for prostate cancer among affected men after radical prostatectomy. Fam Cancer 2019; 18:221-230. [PMID: 30229510 DOI: 10.1007/s10689-018-0101-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Knowledge about interest in genetic testing and willingness-to-pay for a genetic test among men affected from prostate cancer (PCa) is limited. This study aimed to gain insight into men's attitudes in genetic testing for PCa. 4699 men with PCa from the German multicenter prospective database "Familial Prostate Cancer" were included. Interest in, Willingness-to-pay for and Willingness-to-recommend a genetic test for PCa were quantified. Associations with several sociodemographic and psychosocial variables were evaluated by logistic regression. 76.8% of the affected men with a median follow-up of 12.9 years were interested in a genetic test for PCa. Newly identified variables significantly associated with interest were having sons (OR 1.66, p < 0.001) and a high perceived severity of the PCa (OR 1.40, p < 0.001). 19% of men were willing to pay more than 500 € for a genetic test. Men with higher education, men with a better self-reported economic situation and men with a lethal PCa in their family were more likely to be willing to pay a larger sum for a test. 84.9% of men were willing to recommend a test to their relatives. Interest in genetic testing for PCa among affected men was generally high with most men willing to recommend a test to their relatives. Various characteristics associated with interest and willingness-to-pay larger sums for genetic testing were uncovered and need to be addressed when designing both future educational material and genetic tests for PCa.
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Affiliation(s)
- Marcel Mayer
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Katharina Selig
- Department of Mathematics, Technical University of Munich, Boltzmannstr. 3, 85748, Garching, Germany
| | - Frank Tüttelmann
- Institute of Human Genetics, University of Münster, Vesaliusweg 12-14, 48149, Münster, Germany
| | - Andreas Dinkel
- Department of Psychosomatic Medicine and Psychotherapy, Klinikum rechts der Isar, Technical University of Munich, Langerstr. 3, 81675, Munich, Germany
| | - Jürgen E Gschwend
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Kathleen Herkommer
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
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Elmansy D, Koyutürk M. Cross-population analysis for functional characterization of type II diabetes variants. BMC Bioinformatics 2019; 20:320. [PMID: 31216985 PMCID: PMC6584529 DOI: 10.1186/s12859-019-2835-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND As Genome-Wide Association Studies (GWAS) have been increasingly used with data from various populations, it has been observed that data from different populations reveal different sets of Single Nucleotide Polymorphisms (SNPs) that are associated with the same disease. Using Type II Diabetes (T2D) as a test case, we develop measures and methods to characterize the functional overlap of SNPs associated with the same disease across populations. RESULTS We introduce the notion of an Overlap Matrix as a general means of characterizing the functional overlap between different SNP sets at different genomic and functional granularities. Using SNP-to-gene mapping, functional annotation databases, and functional association networks, we assess the degree of functional overlap across nine populations from Asian and European ethnic origins. We further assess the generalizability of the method by applying it to a dataset for another complex disease - Prostate Cancer. Our results show that more overlap is captured as more functional data is incorporated as we go through the pipeline, starting from SNPs and ending at network overlap analyses. We hypothesize that these observed differences in the functional mechanisms of T2D across populations can also explain the common use of different prescription drugs in different populations. We show that this hypothesis is concordant with the literature on the functional mechanisms of prescription drugs. CONCLUSION Our results show that although the etiology of a complex disease can be associated with distinct processes that are affected in different populations, network-based annotations can capture more functional overlap across populations. These results support the notion that it can be useful to take ethnicity into account in making personalized treatment decisions for complex diseases.
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Affiliation(s)
- Dalia Elmansy
- 0000 0001 2164 3847grid.67105.35Department of Electrical Engineering and Computer Science, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH 44106 USA
| | - Mehmet Koyutürk
- 0000 0001 2164 3847grid.67105.35Department of Electrical Engineering and Computer Science, Center for Proteomics and Bioinformatics, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH 44106 USA
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Farashi S, Kryza T, Clements J, Batra J. Post-GWAS in prostate cancer: from genetic association to biological contribution. Nat Rev Cancer 2019; 19:46-59. [PMID: 30538273 DOI: 10.1038/s41568-018-0087-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Genome-wide association studies (GWAS) have been successful in deciphering the genetic component of predisposition to many human complex diseases including prostate cancer. Germline variants identified by GWAS progressively unravelled the substantial knowledge gap concerning prostate cancer heritability. With the beginning of the post-GWAS era, more and more studies reveal that, in addition to their value as risk markers, germline variants can exert active roles in prostate oncogenesis. Consequently, current research efforts focus on exploring the biological mechanisms underlying specific susceptibility loci known as causal variants by applying novel and precise analytical methods to available GWAS data. Results obtained from these post-GWAS analyses have highlighted the potential of exploiting prostate cancer risk-associated germline variants to identify new gene networks and signalling pathways involved in prostate tumorigenesis. In this Review, we describe the molecular basis of several important prostate cancer-causal variants with an emphasis on using post-GWAS analysis to gain insight into cancer aetiology. In addition to discussing the current status of post-GWAS studies, we also summarize the main molecular mechanisms of potential causal variants at prostate cancer risk loci and explore the major challenges in moving from association to functional studies and their implication in clinical translation.
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Affiliation(s)
- Samaneh Farashi
- Cancer Program, School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
- Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Thomas Kryza
- Cancer Program, School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
- Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Judith Clements
- Cancer Program, School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
- Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Jyotsna Batra
- Cancer Program, School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
- Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, Translational Research Institute, Woolloongabba, Queensland, Australia.
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Kalsbeek AM, Chan EK, Corcoran NM, Hovens CM, Hayes VM. Mitochondrial genome variation and prostate cancer: a review of the mutational landscape and application to clinical management. Oncotarget 2017; 8:71342-71357. [PMID: 29050365 PMCID: PMC5642640 DOI: 10.18632/oncotarget.19926] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 07/26/2017] [Indexed: 12/17/2022] Open
Abstract
Prostate cancer is a genetic disease. While next generation sequencing has allowed for the emergence of molecular taxonomy, classification is restricted to the nuclear genome. Mutations within the maternally inherited mitochondrial genome are known to impact cancer pathogenesis, as a result of disturbances in energy metabolism and apoptosis. With a higher mutation rate, limited repair and increased copy number compared to the nuclear genome, the clinical relevance of mitochondrial DNA (mtDNA) variation requires deeper exploration. Here we provide a systematic review of the landscape of prostate cancer associated mtDNA variation. While the jury is still out on the association between inherited mtDNA variation and prostate cancer risk, we collate a total of 749 uniquely reported prostate cancer associated somatic mutations. Support exists for number of somatic events, extent of heteroplasmy, and rate of recurrence of mtDNA mutations, increasing with disease aggression. While, the predicted pathogenic impact for recurrent prostate cancer associated mutations appears negligible, evidence exists for carcinogenic mutations impacting the cytochrome c oxidase complex and regulating metastasis through elevated reactive oxygen species production. Due to a lack of lethal cohort analyses, we provide additional unpublished data for metastatic disease. Discussing the advantages of mtDNA as a prostate cancer biomarker, we provide a review of current progress of including elevated mtDNA levels, of a large somatic deletion, acquired tRNAs mutations, heteroplasmy and total number of somatic events (mutational load). We confirm via meta-analysis a significant association between mtDNA mutational load and pathological staging at diagnosis or surgery (p < 0.0001).
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Affiliation(s)
- Anton M.F. Kalsbeek
- Laboratory for Human Comparative and Prostate Cancer Genomics, Genomics and Epigenetics Division, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- Medical Faculty, University of New South Wales, Randwick, New South Wales, Australia
| | - Eva K.F. Chan
- Laboratory for Human Comparative and Prostate Cancer Genomics, Genomics and Epigenetics Division, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- Medical Faculty, University of New South Wales, Randwick, New South Wales, Australia
| | - Niall M. Corcoran
- Australian Prostate Cancer Research Centre Epworth, Richmond, Victoria, Australia
- Departments of Urology and Surgery, Royal Melbourne Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Christopher M. Hovens
- Australian Prostate Cancer Research Centre Epworth, Richmond, Victoria, Australia
- Departments of Urology and Surgery, Royal Melbourne Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Vanessa M. Hayes
- Laboratory for Human Comparative and Prostate Cancer Genomics, Genomics and Epigenetics Division, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- Medical Faculty, University of New South Wales, Randwick, New South Wales, Australia
- Central Clinical School, University of Sydney, Camperdown, New South Wales, Australia
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8
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Genetic association analysis of the RTK/ERK pathway with aggressive prostate cancer highlights the potential role of CCND2 in disease progression. Sci Rep 2017; 7:4538. [PMID: 28674394 PMCID: PMC5495790 DOI: 10.1038/s41598-017-04731-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 05/19/2017] [Indexed: 12/02/2022] Open
Abstract
The RTK/ERK signaling pathway has been implicated in prostate cancer progression. However, the genetic relevance of this pathway to aggressive prostate cancer at the SNP level remains undefined. Here we performed a SNP and gene-based association analysis of the RTK/ERK pathway with aggressive prostate cancer in a cohort comprising 956 aggressive and 347 non-aggressive cases. We identified several loci including rs3217869/CCND2 within the pathway shown to be significantly associated with aggressive prostate cancer. Our functional analysis revealed a statistically significant relationship between rs3217869 risk genotype and decreased CCND2 expression levels in a collection of 119 prostate cancer patient samples. Reduced expression of CCND2 promoted cell proliferation and its overexpression inhibited cell growth of prostate cancer. Strikingly, CCND2 downregulation was consistently observed in the advanced prostate cancer in 18 available clinical data sets with a total amount of 1,095 prostate samples. Furthermore, the lower expression levels of CCND2 markedly correlated with prostate tumor progression to high Gleason score and elevated PSA levels, and served as an independent predictor of biochemical relapse and overall survival in a large cohort of prostate cancer patients. Together, we have identified an association of genetic variants and genes in the RTK/ERK pathway with prostate cancer aggressiveness, and highlighted the potential importance of CCND2 in prostate cancer susceptibility and tumor progression to metastasis.
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Samuel G, Isbell A, Ogbonna O, Iftikhar H, Sakruti S, Atanda A, Manchandani RP. Rare Paravertebral and Skull Base Metastases in Prostate Cancer. Case Rep Oncol 2016; 9:738-746. [PMID: 27920711 PMCID: PMC5126650 DOI: 10.1159/000452327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 10/10/2016] [Indexed: 11/29/2022] Open
Abstract
Prostate cancer is the most commonly diagnosed visceral cancer in the United States. A majority of cases exhibit an insidious course and nonaggressive tumor behavior. Prostate cancer can manifest as lesions which remain localized, regionally invading or metastasize to lymph nodes, bones, and lungs. Here, we report a unique case of metastatic prostate cancer to the right upper mediastinum, presenting as a paravertebral mass within 2 years of initial tissue diagnosis. Paravertebral spread has not been described for prostate cancer, and herein, we discuss the clinical presentation, diagnostic workup, and possible therapeutic options available in light of the literature.
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Affiliation(s)
- Gbeminiyi Samuel
- Department of Internal Medicine, Howard University Hospital, Washington, DC, USA
| | - Amir Isbell
- Howard University College of Medicine, Washington, DC, USA
| | - Onyekachi Ogbonna
- Division of Hematology and Oncology, Department of Internal Medicine, Howard University Hospital, Washington, DC, USA
| | - Hasan Iftikhar
- Department of Internal Medicine, Howard University Hospital, Washington, DC, USA
| | - Susmita Sakruti
- Division of Hematology and Oncology, Department of Internal Medicine, Howard University Hospital, Washington, DC, USA
| | - Adebayo Atanda
- Department of Internal Medicine, Howard University Hospital, Washington, DC, USA
| | - Raj P. Manchandani
- Division of Hematology and Oncology, Department of Internal Medicine, Howard University Hospital, Washington, DC, USA
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Wallis CJ, Nam RK. Prostate Cancer Genetics: A Review. EJIFCC 2015; 26:79-91. [PMID: 27683484 PMCID: PMC4975354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Over the past decades, research has focussed on identifying the genetic underpinnings of prostate cancer. It has been recognized that a number of forms of genetic changes coupled with epigenetic and gene expression changes can increase the prediction to develop prostate cancer. This review outlines the role of somatic copy number alterations (SCNAs), structural rearrangements, point mutations, and single nucleotide polymorphisms (SNPs) as well as miRNAs. Identifying relevant genetic changes offers the ability to develop novel biomarkers to allow early and accurate detection of prostate cancer as well as provide risk stratification of patients following their diagnosis. The concept of personalized or individualized medicine has gained significant attention. Therefore, a better understanding of the genetic and metabolic pathways underlying prostate cancer development offers the opportunity to explore new therapeutic interventions with the possibility of offering patient-specific targeted therapy.
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Affiliation(s)
| | - Robert K. Nam
- 2075 Bayview Ave., Room MG-406 Toronto, ON M4N 3MS Canada 416-480-5075416-480-6121Robert.Nam(5)utoronto.ca
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