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Liquid Biopsy in Diagnosis and Prognosis of Non-Metastatic Prostate Cancer. Biomedicines 2022; 10:biomedicines10123115. [PMID: 36551871 PMCID: PMC9776104 DOI: 10.3390/biomedicines10123115] [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: 11/01/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 12/10/2022] Open
Abstract
Currently, sensitive and specific methods for the detection and prognosis of early stage PCa are lacking. To establish the diagnosis and further identify an appropriate treatment strategy, prostate specific antigen (PSA) blood test followed by tissue biopsy have to be performed. The combination of tests is justified by the lack of a highly sensitive, specific, and safe single test. Tissue biopsy is specific but invasive and may have severe side effects, and therefore is inappropriate for screening of the disease. At the same time, the PSA blood test, which is conventionally used for PCa screening, has low specificity and may be elevated in the case of noncancerous prostate tumors and inflammatory conditions, including benign prostatic hyperplasia and prostatitis. Thus, diverse techniques of liquid biopsy have been investigated to supplement or replace the existing tests of prostate cancer early diagnosis and prognostics. Here, we provide a review on the advances in diagnosis and prognostics of non-metastatic prostate cancer by means of various biomarkers extracted via liquid biopsy, including circulating tumor cells, exosomal miRNAs, and circulating DNAs.
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Kim J, Cho S, Park Y, Lee J, Park J. Evaluation of micro-RNA in extracellular vesicles from blood of patients with prostate cancer. PLoS One 2021; 16:e0262017. [PMID: 34972164 PMCID: PMC8719659 DOI: 10.1371/journal.pone.0262017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 12/15/2021] [Indexed: 12/14/2022] Open
Abstract
Extracellular vesicles (EVs) contain various types of molecules including micro-RNAs, so isolating EVs can be an effective way to analyze and diagnose diseases. A lot of micro-RNAs have been known in relation to prostate cancer (PCa), and we evaluate miR-21, miR-141, and miR-221 in EVs and compare them with prostate-specific antigen (PSA). EVs were isolated from plasma of 38 patients with prostate cancer and 8 patients with benign prostatic hyperplasia (BPH), using a method that showed the highest recovery of RNA. Isolation of EVs concentrated micro-RNAs, reducing the cycle threshold (Ct) value of RT-qPCR amplification of micro-RNA such as miR-16 by 5.12 and miR-191 by 4.65, compared to the values before EV isolation. Normalization of target micro-RNAs was done using miR-191. For miR-221, the mean expression level of patients with localized PCa was significantly higher than that of the control group, having 33.45 times higher expression than the control group (p < 0.01). Area under curve (AUC) between BPH and PCa for miR-221 was 0.98 (p < 0.0001), which was better than AUC for prostate-specific antigen (PSA) level in serum for the same patients. The levels of miR-21 and miR-141 in EVs did not show significant changes in patients with PCa compared to the control group in this study. This study suggests isolating EVs can be a helpful approach in analyzing micro-RNAs with regard to disease.
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Affiliation(s)
- Jiyoon Kim
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, Gyeong-buk, Republic of Korea
| | - Siwoo Cho
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Gyeong-buk, Republic of Korea
| | - Yonghyun Park
- Department of Urology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jiyoul Lee
- Department of Urology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jaesung Park
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, Gyeong-buk, Republic of Korea
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Gyeong-buk, Republic of Korea
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Abramovic I, Vrhovec B, Skara L, Vrtaric A, Nikolac Gabaj N, Kulis T, Stimac G, Ljiljak D, Ruzic B, Kastelan Z, Kruslin B, Bulic-Jakus F, Ulamec M, Katusic-Bojanac A, Sincic N. MiR-182-5p and miR-375-3p Have Higher Performance Than PSA in Discriminating Prostate Cancer from Benign Prostate Hyperplasia. Cancers (Basel) 2021; 13:cancers13092068. [PMID: 33922968 PMCID: PMC8123314 DOI: 10.3390/cancers13092068] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/16/2021] [Accepted: 04/22/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Prostate cancer (PCa) is the most prevalent neoplasia among men worldwide but is commonly “mimicked” by benign prostate hyperplasia (BPH). Their discrimination by the prostate-specific antigen (PSA) is often uncertain, resulting in lengthy diagnostic protocols and recurrent tissue biopsies. The development of more appropriate biomarkers, possibly present in liquid biopsy, would significantly improve PCa and BPH patient management. To address this challenge, in this study miR-375-3p, miR-182-5p, miR-21-5p, and miR-148a-3p were analyzed by ddPCR in blood plasma and seminal plasma of patients with PCa and BPH prior to tissue biopsy. Among other findings, miR-182-5p and miR-375-3p were found to have statistically significantly higher expression in PCa patients compared to BPH in blood, with a combined specificity of 90.2% to predict positive or negative biopsy results. The data presented emphasize the great potential of miRNAs as liquid biopsy biomarkers for PCa. Abstract Prostate cancer (PCa) is the most commonly diagnosed neoplasm among men. Since it often resembles benign prostate hyperplasia (BPH), biomarkers with a higher differential value than PSA are required. Epigenetic biomarkers in liquid biopsies, especially miRNA, could address this challenge. The absolute expression of miR-375-3p, miR-182-5p, miR-21-5p, and miR-148a-3p were quantified in blood plasma and seminal plasma of 65 PCa and 58 BPH patients by digital droplet PCR. The sensitivity and specificity of these microRNAs were determined using ROC curve analysis. The higher expression of miR-182-5p and miR-375-3p in the blood plasma of PCa patients was statistically significant as compared to BPH (p = 0.0363 and 0.0226, respectively). Their combination achieved a specificity of 90.2% for predicting positive or negative biopsy results, while PSA cut-off of 4 µg/L performed with only 1.7% specificity. In seminal plasma, miR-375-3p, miR-182-5p, and miR-21-5p showed a statistically significantly higher expression in PCa patients with PSA >10 µg/L compared to ones with PSA ≤10 µg/L. MiR-182-5p and miR-375-3p in blood plasma show higher performance than PSA in discriminating PCa from BPH. Seminal plasma requires further investigation as it represents an obvious source for PCa biomarker identification.
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Affiliation(s)
- Irena Abramovic
- Department of Medical Biology, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (I.A.); (L.S.); (F.B.-J.); (A.K.-B.)
- Group for Research on Epigenetic Biomarkers (Epimark), University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (T.K.); (G.S.); (B.R.); (Z.K.); (M.U.)
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
| | - Borna Vrhovec
- Department of Urology, University Clinical Hospital Center Sestre Milosrdnice, 10000 Zagreb, Croatia;
| | - Lucija Skara
- Department of Medical Biology, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (I.A.); (L.S.); (F.B.-J.); (A.K.-B.)
- Group for Research on Epigenetic Biomarkers (Epimark), University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (T.K.); (G.S.); (B.R.); (Z.K.); (M.U.)
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
| | - Alen Vrtaric
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
- Department of Clinical Chemistry, University Clinical Hospital Center Sestre Milosrdnice, 10000 Zagreb, Croatia
| | - Nora Nikolac Gabaj
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
- Department of Clinical Chemistry, University Clinical Hospital Center Sestre Milosrdnice, 10000 Zagreb, Croatia
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia
| | - Tomislav Kulis
- Group for Research on Epigenetic Biomarkers (Epimark), University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (T.K.); (G.S.); (B.R.); (Z.K.); (M.U.)
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
- Department of Urology, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
| | - Goran Stimac
- Group for Research on Epigenetic Biomarkers (Epimark), University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (T.K.); (G.S.); (B.R.); (Z.K.); (M.U.)
- Department of Urology, University Clinical Hospital Center Sestre Milosrdnice, 10000 Zagreb, Croatia;
| | - Dejan Ljiljak
- Department of Gynecology and Obstetrics, University Clinical Hospital Center Sestre Milosrdnice, 10000 Zagreb, Croatia;
| | - Boris Ruzic
- Group for Research on Epigenetic Biomarkers (Epimark), University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (T.K.); (G.S.); (B.R.); (Z.K.); (M.U.)
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
- Department of Urology, University Clinical Hospital Center Sestre Milosrdnice, 10000 Zagreb, Croatia;
| | - Zeljko Kastelan
- Group for Research on Epigenetic Biomarkers (Epimark), University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (T.K.); (G.S.); (B.R.); (Z.K.); (M.U.)
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
- Department of Urology, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
| | - Bozo Kruslin
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
- Ljudevit Jurak Clinical Department of Pathology and Cytology, University Clinical Hospital Center Sestre Milosrdnice, 10000 Zagreb, Croatia
| | - Floriana Bulic-Jakus
- Department of Medical Biology, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (I.A.); (L.S.); (F.B.-J.); (A.K.-B.)
- Group for Research on Epigenetic Biomarkers (Epimark), University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (T.K.); (G.S.); (B.R.); (Z.K.); (M.U.)
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
| | - Monika Ulamec
- Group for Research on Epigenetic Biomarkers (Epimark), University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (T.K.); (G.S.); (B.R.); (Z.K.); (M.U.)
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
- Ljudevit Jurak Clinical Department of Pathology and Cytology, University Clinical Hospital Center Sestre Milosrdnice, 10000 Zagreb, Croatia
- Department of Pathology, School of Dental Medicine and School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Ana Katusic-Bojanac
- Department of Medical Biology, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (I.A.); (L.S.); (F.B.-J.); (A.K.-B.)
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
| | - Nino Sincic
- Department of Medical Biology, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (I.A.); (L.S.); (F.B.-J.); (A.K.-B.)
- Group for Research on Epigenetic Biomarkers (Epimark), University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (T.K.); (G.S.); (B.R.); (Z.K.); (M.U.)
- Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb School of Medicine, 10000 Zagreb, Croatia; (A.V.); (N.N.G.); (B.K.)
- Correspondence: ; Tel.: +385-145-66-806
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LMTK2 as Potential Biomarker for Stratification between Clinically Insignificant and Clinically Significant Prostate Cancer. JOURNAL OF ONCOLOGY 2021; 2021:8820366. [PMID: 33488712 PMCID: PMC7803409 DOI: 10.1155/2021/8820366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/15/2020] [Accepted: 12/18/2020] [Indexed: 12/14/2022]
Abstract
A set of prostate tumors tend to grow slowly and do not require active treatment. Therefore, stratification between patients with clinically significant and clinically insignificant prostate cancer (PC) remains a vital issue to avoid overtreatment. Fast development of genetic technologies accelerated development of next-generation molecular tools for reliable PC diagnosis. The aim of this study is to evaluate the diagnostic value of molecular biomarkers (CRISP3, LMTK2, and MSMB) for separation of PC cases from benign prostatic changes and more specifically for identification of clinically significant PC from all pool of PC cases in patients with rising PSA levels. Patients (n = 200) who had rising PSA (PSA II) after negative transrectal systematic prostate biopsy due to elevated PSA (PSA I) were eligible to the study. In addition to PSA concentration, PSA density was calculated for each patient. Gene expression level was measured in peripheral blood samples of cases applying RT-PCR, while MSMB (−57 C/T) polymorphism was identified by pyrosequencing. LMTK2 and MSMB significantly differentiated control group from both BPD and PC groups. MSMB expression tended to increase from the major alleles of the CC genotype to the minor alleles of the TT genotype. PSA density was the only clinical characteristic that significantly differentiated clinically significant PC from clinically insignificant PC. Therefore, LMTK2 expression and PSA density were significantly distinguished between clinically significant PC and clinically insignificant PC. PSA density rather than PSA can differentiate PC from the benign prostate disease and, in combination with LMTK2, assist in stratification between clinically insignificant and clinically significant PC.
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Johnson H, Guo J, Zhang X, Zhang H, Simoulis A, Wu AHB, Xia T, Li F, Tan W, Johnson A, Dizeyi N, Abrahamsson PA, Kenner L, Feng X, Zou C, Xiao K, Persson JL, Chen L. Development and validation of a 25-Gene Panel urine test for prostate cancer diagnosis and potential treatment follow-up. BMC Med 2020; 18:376. [PMID: 33256740 PMCID: PMC7706045 DOI: 10.1186/s12916-020-01834-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/30/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Heterogeneity of prostate cancer (PCa) contributes to inaccurate cancer screening and diagnosis, unnecessary biopsies, and overtreatment. We intended to develop non-invasive urine tests for accurate PCa diagnosis to avoid unnecessary biopsies. METHODS Using a machine learning program, we identified a 25-Gene Panel classifier for distinguishing PCa and benign prostate. A non-invasive test using pre-biopsy urine samples collected without digital rectal examination (DRE) was used to measure gene expression of the panel using cDNA preamplification followed by real-time qRT-PCR. The 25-Gene Panel urine test was validated in independent multi-center retrospective and prospective studies. The diagnostic performance of the test was assessed against the pathological diagnosis from biopsy by discriminant analysis. Uni- and multivariate logistic regression analysis was performed to assess its diagnostic improvement over PSA and risk factors. In addition, the 25-Gene Panel urine test was used to identify clinically significant PCa. Furthermore, the 25-Gene Panel urine test was assessed in a subset of patients to examine if cancer was detected after prostatectomy. RESULTS The 25-Gene Panel urine test accurately detected cancer and benign prostate with AUC of 0.946 (95% CI 0.963-0.929) in the retrospective cohort (n = 614), AUC of 0.901 (0.929-0.873) in the prospective cohort (n = 396), and AUC of 0.936 (0.956-0.916) in the large combination cohort (n = 1010). It greatly improved diagnostic accuracy over PSA and risk factors (p < 0.0001). When it was combined with PSA, the AUC increased to 0.961 (0.980-0.942). Importantly, the 25-Gene Panel urine test was able to accurately identify clinically significant and insignificant PCa with AUC of 0.928 (95% CI 0.947-0.909) in the combination cohort (n = 727). In addition, it was able to show the absence of cancer after prostatectomy with high accuracy. CONCLUSIONS The 25-Gene Panel urine test is the first highly accurate and non-invasive liquid biopsy method without DRE for PCa diagnosis. In clinical practice, it may be used for identifying patients in need of biopsy for cancer diagnosis and patients with clinically significant cancer for immediate treatment, and potentially assisting cancer treatment follow-up.
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Affiliation(s)
| | - Jinan Guo
- Department of Urology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen Urology Minimally Invasive Engineering Centre, Shenzhen, China.,Shenzhen Public Service Platform on Tumor Precision Medicine and Molecular Diagnosis, Clinical Medical Research Centre, The Second Clinical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Xuhui Zhang
- Department of Bio-diagnosis, Institute of Basic Medical Sciences, Beijing, China
| | - Heqiu Zhang
- Department of Bio-diagnosis, Institute of Basic Medical Sciences, Beijing, China
| | - Athanasios Simoulis
- Department of Clinical Pathology and Cytology, Skåne University Hospital, Malmö, Sweden
| | - Alan H B Wu
- Clinical Laboratories, San Francisco General Hospital, San Francisco, CA, USA
| | - Taolin Xia
- Department of Urology, Foshan First People's Hospital, Foshan, China
| | - Fei Li
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wanlong Tan
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | | | - Nishtman Dizeyi
- Department of Translational Medicine, Lund University, Clinical Research Centre, Malmö, Sweden
| | - Per-Anders Abrahamsson
- Department of Translational Medicine, Lund University, Clinical Research Centre, Malmö, Sweden
| | - Lukas Kenner
- Department of Experimental Pathology, Medical University Vienna & Unit of Laboratory Animal Pathology, University of Veterinary Medicine, Vienna, Austria
| | - Xiaoyan Feng
- Department of Bio-diagnosis, Institute of Basic Medical Sciences, Beijing, China
| | - Chang Zou
- Shenzhen Public Service Platform on Tumor Precision Medicine and Molecular Diagnosis, Clinical Medical Research Centre, The Second Clinical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Kefeng Xiao
- Department of Urology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen Urology Minimally Invasive Engineering Centre, Shenzhen, China.,Shenzhen Public Service Platform on Tumor Precision Medicine and Molecular Diagnosis, Clinical Medical Research Centre, The Second Clinical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Jenny L Persson
- Department of Molecular Biology, Umeå University, 901 87, Umeå, Sweden. .,Division of Experimental Cancer Research, Department of Translational Medicine, Lund University, 205 02, Malmö, Sweden. .,Department of Biomedical Sciences, Malmö University, Malmö, Sweden.
| | - Lingwu Chen
- Department of Urology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China.
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Pessoa LS, Heringer M, Ferrer VP. ctDNA as a cancer biomarker: A broad overview. Crit Rev Oncol Hematol 2020; 155:103109. [PMID: 33049662 DOI: 10.1016/j.critrevonc.2020.103109] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/17/2020] [Accepted: 09/07/2020] [Indexed: 02/07/2023] Open
Abstract
Circulating tumor DNA (ctDNA) in fluids has gained attention because ctDNA seems to identify tumor-specific abnormalities, which could be used for diagnosis, follow-up of treatment, and prognosis: the so-called liquid biopsy. Liquid biopsy is a minimally invasive approach and presents the sum of ctDNA from primary and secondary tumor sites. It has been possible not only to quantify the amount of ctDNA but also to identify (epi)genetic changes. Specific mutations in genes have been identified in the plasma of patients with several types of cancer, which highlights ctDNA as a possible cancer biomarker. However, achieving detectable concentrations of ctDNA in body fluids is not an easy task. ctDNA fragments present a short half-life, and there are no cut-off values to discriminate high and low ctDNA concentrations. Here, we discuss the use of ctDNA as a cancer biomarker, the main methodologies, the inherent difficulties, and the clinical predictive value of ctDNA.
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Affiliation(s)
- Luciana Santos Pessoa
- Brain's Biomedicine Laboratory, Paulo Niemeyer State Brain Institute, Rio de Janeiro, Rio de Janeiro, Brazil; Center for Experimental Surgery, Graduate Program in Surgical Sciences, Department of Surgery, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Manoela Heringer
- Brain's Biomedicine Laboratory, Paulo Niemeyer State Brain Institute, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Valéria Pereira Ferrer
- Department of Cellular and Molecular Biology, Institute of Biology, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil.
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Tucker D, Zheng W, Zhang DH, Dong X. Circular RNA and its potential as prostate cancer biomarkers. World J Clin Oncol 2020; 11:563-572. [PMID: 32879844 PMCID: PMC7443832 DOI: 10.5306/wjco.v11.i8.563] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 06/09/2020] [Accepted: 07/19/2020] [Indexed: 02/06/2023] Open
Abstract
Advancing knowledge of the transcriptome has revealed that circular RNAs (circRNAs) are widely expressed and evolutionarily conserved molecules that may serve relevant biological roles. More interesting is the accumulating evidence which demonstrates the implication of circRNAs in diseases, especially cancers. This revelation has helped to form the rationale for many studies exploring their utility as clinical biomarkers. CircRNAs are highly stable due to their unique structures, exhibit some tissue specificity, and are enriched in exosomes, which facilitate their detection in a range of body fluids. These properties make circRNAs ideal candidates for biomarker development in many diseases. This review will outline the discovery, biogenesis, and proposed functions of circRNAs.
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Affiliation(s)
- Dwayne Tucker
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC V6H 3Z6, Canada
| | - Wei Zheng
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC V6H 3Z6, Canada
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou 310024, Zhejiang Province, China
| | - Da-Hong Zhang
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou 310024, Zhejiang Province, China
| | - Xuesen Dong
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC V6H 3Z6, Canada
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Medipally DKR, Cullen D, Untereiner V, Sockalingum GD, Maguire A, Nguyen TNQ, Bryant J, Noone E, Bradshaw S, Finn M, Dunne M, Shannon AM, Armstrong J, Meade AD, Lyng FM. Vibrational spectroscopy of liquid biopsies for prostate cancer diagnosis. Ther Adv Med Oncol 2020; 12:1758835920918499. [PMID: 32821294 PMCID: PMC7412923 DOI: 10.1177/1758835920918499] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 03/18/2020] [Indexed: 12/24/2022] Open
Abstract
Background: Screening for prostate cancer with prostate specific antigen and digital rectal examination allows early diagnosis of prostate malignancy but has been associated with poor sensitivity and specificity. There is also a considerable risk of over-diagnosis and over-treatment, which highlights the need for better tools for diagnosis of prostate cancer. This study investigates the potential of high throughput Raman and Fourier Transform Infrared (FTIR) spectroscopy of liquid biopsies for rapid and accurate diagnosis of prostate cancer. Methods: Blood samples (plasma and lymphocytes) were obtained from healthy control subjects and prostate cancer patients. FTIR and Raman spectra were recorded from plasma samples, while Raman spectra were recorded from the lymphocytes. The acquired spectral data was analysed with various multivariate statistical methods, principal component analysis (PCA), partial least squares discriminant analysis (PLS-DA) and classical least squares (CLS) fitting analysis. Results: Discrimination was observed between the infrared and Raman spectra of plasma and lymphocytes from healthy donors and prostate cancer patients using PCA. In addition, plasma and lymphocytes displayed differentiating signatures in patients exhibiting different Gleason scores. A PLS-DA model was able to discriminate these groups with sensitivity and specificity rates ranging from 90% to 99%. CLS fitting analysis identified key analytes that are involved in the development and progression of prostate cancer. Conclusions: This technology may have potential as an alternative first stage diagnostic triage for prostate cancer. This technology can be easily adaptable to many other bodily fluids and could be useful for translation of liquid biopsy-based diagnostics into the clinic.
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Affiliation(s)
- Dinesh K R Medipally
- Radiation and Environmental Science Centre, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | - Daniel Cullen
- Radiation and Environmental Science Centre, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | - Valérie Untereiner
- Université de Reims Champagne-Ardenne, BioSpecT EA 7506, UFR Pharmacie, Reims, France
| | - Ganesh D Sockalingum
- Université de Reims Champagne-Ardenne, BioSpecT EA 7506, UFR Pharmacie, Reims, France
| | - Adrian Maguire
- Radiation and Environmental Science Centre, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | - Thi Nguyet Que Nguyen
- Radiation and Environmental Science Centre, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | - Jane Bryant
- Radiation and Environmental Science Centre, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | - Emma Noone
- Clinical Trials Unit, St Luke's Radiation Oncology Network, St Luke's Hospital, Dublin, Ireland
| | - Shirley Bradshaw
- Clinical Trials Unit, St Luke's Radiation Oncology Network, St Luke's Hospital, Dublin, Ireland
| | - Marie Finn
- Clinical Trials Unit, St Luke's Radiation Oncology Network, St Luke's Hospital, Dublin, Ireland
| | - Mary Dunne
- Clinical Trials Unit, St Luke's Radiation Oncology Network, St Luke's Hospital, Dublin, Ireland
| | | | | | - Aidan D Meade
- School of Physics & Clinical & Optometric Sciences, Technological University Dublin, Kevin Street, Dublin, Dublin D08 NF82, Ireland
| | - Fiona M Lyng
- Radiation and Environmental Science Centre, Focas Research Institute, Technological University Dublin, Dublin, Dublin D08 NF82, Ireland
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