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Saini T, Gupta P, Raut R, Nayak V, Bharathnaveen P, Mishra P, Misra A. AR-V7 expression facilitates accelerated G2/M phase transition in castration-resistant prostate cancer. Exp Cell Res 2024; 438:114026. [PMID: 38604522 DOI: 10.1016/j.yexcr.2024.114026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 04/13/2024]
Abstract
The emergence of AR-V7, a truncated isoform of AR upon androgen deprivation therapy treatment, leads to the development of castration resistant prostate cancer (CRPC). Understanding mechanisms that regulate AR-V7 expression is critical for developing newer therapeutic strategies. In this study, we have investigated the regulation of AR-V7 during cell cycle and identified a distinct pattern of periodic fluctuation, peaking during G2/M phase. This fluctuation correlates with the expression of Cdc-2 like kinase 1 (CLK1) and phosphorylated serine/arginine-rich splicing factor 1 (p-SRSF1) during these phases, pointing towards their role in AR-V7 generation. Functional assays reveal that CLK1 knockdown prolongs the S phase, leading to altered cell cycle distribution and increased accumulation of AR-V7 and pSRSF1 in G1/S phase. Conversely, CLK1 overexpression rescues AR-V7 and p-SRSF1 levels in the G2/M phase, consistent with observed cell cycle alterations upon AR-V7 knockdown and overexpression in CRPC cells. Furthermore, overexpression of kinase-deficient CLK1 mutant leads to diminished AR-V7 levels during G2/M, underlining the essential contribution of CLK1's kinase activity in modulating AR-V7 expression. Collectively, our findings, for the first time, show periodic regulation of AR-V7 expression, its effect on cell cycle progression and the critical role of CLK1-pSRSF1 axis in modulating AR-V7 expression throughout the cell cycle.
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Affiliation(s)
- Taruna Saini
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502284, India
| | - Parth Gupta
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502284, India
| | - Rajnikant Raut
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502284, India
| | - Vinayak Nayak
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502284, India
| | - Pabbithi Bharathnaveen
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502284, India
| | - Parul Mishra
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Ashish Misra
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502284, India.
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2
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Augello MA, Chen X, Liu D, Lin K, Hakansson A, Sjöström M, Khani F, Deonarine LD, Liu Y, Travascio-Green J, Wu J, Loda M, Feng FY, Robinson BD, Davicioni E, Sboner A, Barbieri CE. Canonical AREs are tumor suppressive regulatory elements in the prostate. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.23.581466. [PMID: 38464162 PMCID: PMC10925218 DOI: 10.1101/2024.02.23.581466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The androgen receptor (AR) is the central determinant of prostate tissue identity and differentiation, controlling normal, growth-suppressive prostate-specific gene expression 1 . It is also a key driver of prostate tumorigenesis, becoming "hijacked" to drive oncogenic transcription 2-5 . However, the regulatory elements determining the execution of the growth suppressive AR transcriptional program, and whether this can be reactivated in prostate cancer (PCa) cells remains unclear. Canonical androgen response element (ARE) motifs are the classic DNA binding element for AR 6 . Here, we used a genome-wide strategy to modulate regulatory elements containing AREs to define distinct AR transcriptional programs. We find that activation of these AREs is specifically associated with differentiation and growth suppressive transcription, and this can be reactivated to cause death in AR + PCa cells. In contrast, repression of AREs is well tolerated by PCa cells, but deleterious to normal prostate cells. Finally, gene expression signatures driven by ARE activity are associated with improved prognosis and luminal phenotypes in human PCa patients. This study demonstrates that canonical AREs are responsible for a normal, growth-suppressive, lineage-specific transcriptional program, that this can be reengaged in PCa cells for potential therapeutic benefit, and genes controlled by this mechanism are clinically relevant in human PCa patients.
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3
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Jiang C, Xu F, Yi D, Jiang B, Wang R, Wu L, Ding H, Qin J, Lee Y, Sang J, Shi X, Su L. Testosterone promotes the migration, invasion and EMT process of papillary thyroid carcinoma by up-regulating Tnnt1. J Endocrinol Invest 2024; 47:149-166. [PMID: 37477865 PMCID: PMC10776714 DOI: 10.1007/s40618-023-02132-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 06/06/2023] [Indexed: 07/22/2023]
Abstract
PURPOSE To explore the key genes and molecular pathways in the progression of thyroid papillary carcinoma (PTC) promoted by testosterone using RNA-sequencing technology, and to provide new drug targets for improving the therapeutic effect of PTC. METHODS Orchiectomy (ORX) was carried out to construct ORX mouse models. TPC-1 cells were subcutaneously injected for PTC formation in mice, and the tumor tissues were collected for RNA-seq. The key genes were screened by bioinformatics technology. Tnnt1 expression in PTC cells was knocked down or overexpressed by transfection. Cell counting kit-8 (CCK-8), colony formation assay, scratch assay and transwell assay were adopted, respectively, for the detection of cell proliferation, colony formation, migration and invasion. Besides, quantification real-time polymerase chain reaction (qRT-PCR) and western blot were utilized to determine the mRNA and protein expression levels of genes in tissues or cells. RESULTS Both estradiol and testosterone promoted the growth of PTC xenografts. The key gene Tnnt1 was screened and obtained by bioinformatics technology. Functional analysis revealed that overexpression of Tnnt1 could markedly promote the proliferation, colony formation, migration, invasion, and epithelial-to-mesenchymal transition (EMT) process of PTC cells, as well as could activate p38/JNK pathway. In addition, si-Tnt1 was able to inhibit the cancer-promoting effect of testosterone. CONCLUSION Based on the outcomes of bioinformatics and basic experiments, it is found that testosterone can promote malignant behaviors such as growth, migration, invasion and EMT process of PTC by up-regulating Tnnt1 expression. In addition, the function of testosterone may be achieved by activating p38/JNK signaling pathway.
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Affiliation(s)
- C Jiang
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - F Xu
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China
| | - D Yi
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - B Jiang
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China
| | - R Wang
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - L Wu
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - H Ding
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China
| | - J Qin
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China
| | - Y Lee
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - J Sang
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China.
| | - X Shi
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - L Su
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
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4
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Smith BK, Ward M. The Role of Testosterone Therapy in Men's Health. Nurs Clin North Am 2023; 58:525-539. [PMID: 37832997 DOI: 10.1016/j.cnur.2023.07.001] [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] [Indexed: 10/15/2023]
Abstract
Over the last 3 decades, there has been an increased interest in testosterone replacement therapy. This trend is a result of an aging population, endocrine disruptors in our foods and environment and rising obesity rates. In addition, there has been a surge in Men's Health clinics and online direct-to-consumer Web sites, making testosterone replacement therapy much more readily accessible. As more men seek to increase their testosterone levels, more long-term random control studies are needed to gain better insight into testosterone optimization to support the anecdotal observation commonly experienced in the practice setting.
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Affiliation(s)
- Blake K Smith
- American Association for Men in Nursing, Wisconsin Rapids, WI, USA; Clinical Documentation Sr. Analyst, Enterprise Applications, Nebraska Medicine, Omaha, NE, USA; Accelerated Program Student Success Coach, School of Nursing, Nebraska Methodist College, Omaha, NE, USA
| | - Michael Ward
- Critical Care Nurse Practitioner, Cardiovascular ICU, Medical ICU, Texas Health Huguley Hospital, 11801 South Freeway, Burleson, TX 76028, USA.
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5
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Liu Y, He JX, Ji B, Wang JF, Zhang L, Pang ZQ, Wang JS, Ding BC, Ren MH. Comprehensive analysis of integrin αvβ3/α6β1 in prognosis and immune escape of prostate cancer. Aging (Albany NY) 2023; 15:11369-11388. [PMID: 37862114 PMCID: PMC10637796 DOI: 10.18632/aging.205131] [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: 08/03/2023] [Accepted: 10/02/2023] [Indexed: 10/22/2023]
Abstract
Integrin αvβ3/α6β1 are crucial in the transduction of intercellular cancer information, while their roles in prostate cancer (PCa) remain poorly understood. Here, we systematically analyzed the transcriptome, single nucleotide polymorphisms (SNPs) and clinical data of 495 PCa patients from the TCGA database and verified them in 220 GEO patients, and qPCR was used to validate the expression of the model genes in our patients. First, we found that integrin αvβ3/α6β1 was negatively correlated with most immune cell infiltration and immune functions and closely associated with poor survival in TCGA patients. Then, we divided these patients into two groups according to the expression level of αvβ3/α6β1, intersected differentially expressed genes of the two groups with the GEO dataset and identified eight biochemical recurrence-related genes (BRGs), and these genes were verified by qPCR in our patients. Next, these BRGs were used to construct a prognostic risk model by applying LASSO Cox regression. We found that the high-risk (HR) group showed poorer OS, PFS, biochemical recurrence and clinical characteristics than the low-risk (LR) group. In addition, the HR group was mainly enriched in the cell cycle pathway and had a higher TP53 mutation rate than the LR group. More importantly, lower immune cell infiltration and immune function, higher expression of PD-L1, PD-1, and CTLA4, and higher immune exclusion scores were identified in the HR group, suggesting a higher possibility of immune escape. These findings suggested the key role of integrin αvβ3/α6β1 in predicting prognosis, TP53 mutation and immune escape in PCa.
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Affiliation(s)
- Yang Liu
- Department of Urinary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jia-Xin He
- Department of Urinary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Bo Ji
- Department of Urinary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jin-Feng Wang
- Department of Urinary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Lu Zhang
- Department of Urinary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Zhong-Qi Pang
- Department of Urinary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jian-She Wang
- Department of Urinary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Bei-Chen Ding
- Department of Urinary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Ming-Hua Ren
- Department of Urinary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Wang Z, Zhu S, Tan S, Zeng Y, Zeng H. The P2 purinoceptors in prostate cancer. Purinergic Signal 2023; 19:255-263. [PMID: 35771310 PMCID: PMC9984634 DOI: 10.1007/s11302-022-09874-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/25/2022] [Indexed: 02/08/2023] Open
Abstract
P2 purinoceptors are composed of ligand-gated ion channel type (P2X receptor) and G protein-coupled metabolite type (P2Y receptor). Both these receptors have played important roles in the prostate cancer microenvironment in recent years. P2X and P2Y receptors can contribute to prostate cancer's growth and invasiveness. However, the comprehensive mechanisms have yet to be identified. By summarizing the relevant studies, we believe that P2X and P2Y receptors play a dual role in cancer cell growth depending on the prostate cancer microenvironment and different downstream signalling pathways. We also summarized how different signalling pathways contribute to tumor invasiveness and metastasis through P2X and P2Y receptors, focusing on understanding the specific mechanisms led by P2X4, P2X7, and P2Y2. Statins may reduce and prevent tumor progression through P2X7 so that P2X purinergic receptors may have clinical implications in the management of prostate cancer. Furthermore, P2X7 receptors can aid in the early detection of prostate cancer. We hope that this review will provide new insights for future mechanistic and clinical investigations into the role of P2 purinergic receptors in prostate cancer.
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Affiliation(s)
- Zilin Wang
- The Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Sha Zhu
- The Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Sirui Tan
- Department of Abdominal Cancer, Medical School, West China Hospital, Sichuan University, Cancer Center, Chengdu, West China, China
| | - Yuhao Zeng
- The Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Hao Zeng
- The Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.
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Castellón EA, Indo S, Contreras HR. Cancer Stemness/Epithelial-Mesenchymal Transition Axis Influences Metastasis and Castration Resistance in Prostate Cancer: Potential Therapeutic Target. Int J Mol Sci 2022; 23:ijms232314917. [PMID: 36499245 PMCID: PMC9736174 DOI: 10.3390/ijms232314917] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 11/30/2022] Open
Abstract
Prostate cancer (PCa) is a leading cause of cancer death in men, worldwide. Mortality is highly related to metastasis and hormone resistance, but the molecular underlying mechanisms are poorly understood. We have studied the presence and role of cancer stem cells (CSCs) and the Epithelial-Mesenchymal transition (EMT) in PCa, using both in vitro and in vivo models, thereby providing evidence that the stemness-mesenchymal axis seems to be a critical process related to relapse, metastasis and resistance. These are complex and related processes that involve a cooperative action of different cancer cell subpopulations, in which CSCs and mesenchymal cancer cells (MCCs) would be responsible for invading, colonizing pre-metastatic niches, initiating metastasis and an evading treatments response. Manipulating the stemness-EMT axis genes on the androgen receptor (AR) may shed some light on the effect of this axis on metastasis and castration resistance in PCa. It is suggested that the EMT gene SNAI2/Slug up regulates the stemness gene Sox2, and vice versa, inducing AR expression, promoting metastasis and castration resistance. This approach will provide new sight about the role of the stemness-mesenchymal axis in the metastasis and resistance mechanisms in PCa and their potential control, contributing to develop new therapeutic strategies for patients with metastatic and castration-resistant PCa.
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Affiliation(s)
- Enrique A. Castellón
- Correspondence: (E.A.C.); (H.R.C.); Tel.: +56-229-786-863 (E.A.C.); +56-229-786-862 (H.R.C.)
| | | | - Héctor R. Contreras
- Correspondence: (E.A.C.); (H.R.C.); Tel.: +56-229-786-863 (E.A.C.); +56-229-786-862 (H.R.C.)
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8
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Wang NF, Jue TR, Holst J, Gunter JH. Systematic review of antitumour efficacy and mechanism of metformin activity in prostate cancer models. BJUI COMPASS 2022; 4:44-58. [PMID: 36569495 PMCID: PMC9766874 DOI: 10.1002/bco2.187] [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: 06/08/2022] [Revised: 07/07/2022] [Accepted: 08/08/2022] [Indexed: 12/27/2022] Open
Abstract
Metformin, the first line pharmacotherapy for type 2 diabetes has demonstrated favourable effects in prostate cancer (PCa) across a range of studies evaluating PCa patient outcomes amongst metformin users. However, a lack of rigorously conducted prospective studies has stalled clinical use in this setting. Despite multiple studies evaluating the mechanisms underpinning antitumour effects of metformin in PCa, to date, no reviews have compared these findings. This systematic review and meta-analysis consolidates the mechanisms accounting for the antitumour effect of metformin in PCa and evaluates the antitumour efficacy of metformin in preclinical PCa studies. Data were obtained through Medline and EMBASE, extracted by two independent assessors. Risk of bias was assessed using the TOXR tool. Meta-analysis compared in vivo reductions of PCa tumour volume with metformin. In total, 447 articles were identified with 80 duplicates, and 261 articles excluded based on eligibility criteria. The remaining 106 articles were assessed and 71 excluded, with 35 articles included for systematic review, and eight included for meta-analysis. The mechanisms of action of metformin regarding tumour growth, viability, migration, invasion, cell metabolism, and activation of signalling cascades are individually discussed. The mechanisms by which metformin inhibits PCa cell growth are multimodal. Metformin regulates expression of multiple proteins/genes to inhibit cellular proliferation, cell cycle progression, and cellular invasion and migration. Published in vivo studies also conclusively demonstrate that metformin inhibits PCa growth. This highlights the potential of metformin to be repurposed as an anticancer agent, warranting further investigation of metformin in the setting of PCa.
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Affiliation(s)
- Nan Fang Wang
- School of Medical SciencesUNSW SydneySydneyNSWAustralia,Prince of Wales Clinical SchoolUNSW SydneySydneyNSWAustralia
| | - Toni Rose Jue
- Prince of Wales Clinical SchoolUNSW SydneySydneyNSWAustralia
| | - Jeff Holst
- School of Medical SciencesUNSW SydneySydneyNSWAustralia,Prince of Wales Clinical SchoolUNSW SydneySydneyNSWAustralia
| | - Jennifer H. Gunter
- Australian Prostate Cancer Research Centre‐Queensland, Centre for Genomic and Personalised Health, School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of Technology (QUT)BrisbaneQLDAustralia
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9
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Bray AW, Duan R, Malalur P, Drusbosky LM, Gourdin TS, Hill EG, Lilly MB. Elevated serum CEA is associated with liver metastasis and distinctive circulating tumor DNA alterations in patients with castration-resistant prostate cancer. Prostate 2022; 82:1264-1272. [PMID: 35766303 PMCID: PMC9388585 DOI: 10.1002/pros.24400] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 02/14/2022] [Accepted: 06/01/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND Elevated serum carcinoembryonic antigen (CEA) is used to identify "treatment emergent" forms of castration-resistant prostate cancer (CRPC) such as aggressive variant prostate cancer (AVPC). However, its individual utility as a prognostic marker and the genetic alterations associated with its expression have not been extensively studied in CRPC. METHODS This study retrospectively analyzed clinical outcomes and circulating tumor DNA profiles in 163 patients with CRPC and elevated or normal serum CEA. These same patients were then classified as AVPC or non-AVPC and compared to determine the uniqueness of CEA-associated gene alterations. RESULTS Patients with elevated CEA demonstrated higher rates of liver metastasis (37.5% vs. 19.1%, p = 0.02) and decreased median overall survival from CRPC diagnosis (28.7 vs. 73.2 mo, p < 0.0001). In addition, patients with elevated CEA were more likely to harbor copy number amplifications (CNAs) in AR, PIK3CA, MYC, BRAF, CDK6, MET, CCNE1, KIT, RAF1, and KRAS. Based on variant allele frequency we also defined "clonal" single-nucleotide variants (SNVs) thought to be driving disease progression in each patient and found that CEA expression was negatively correlated with clonal AR SNVs and positively correlated with clonal TP53 SNVs. Of these genetic associations, only the increases in clonal TP53 SNVs and KRAS amplifications were recapitulated among patients with AVPC when compared to patients without AVPC. CONCLUSIONS Together these findings suggest that CEA expression in CRPC is associated with aggressive clinical behavior and gene alterations distinct from those in AVPC.
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Affiliation(s)
- Alexander W. Bray
- Department of MedicineMedical University of South CarolinaCharlestonSouth CarolinaUSA
| | - Rong Duan
- Department of Public Health SciencesMedical University of South CarolinaCharlestonSouth CarolinaUSA
- Hollings Cancer CenterMedical University of South CarolinaCharlestonSouth CarolinaUSA
| | - Pannaga Malalur
- The Ohio State University Wexner Medical CenterColumbusOhioUSA
| | | | - Theodore S. Gourdin
- Department of MedicineMedical University of South CarolinaCharlestonSouth CarolinaUSA
- Hollings Cancer CenterMedical University of South CarolinaCharlestonSouth CarolinaUSA
| | - Elizabeth G. Hill
- Department of Public Health SciencesMedical University of South CarolinaCharlestonSouth CarolinaUSA
- Hollings Cancer CenterMedical University of South CarolinaCharlestonSouth CarolinaUSA
| | - Michael B. Lilly
- Department of MedicineMedical University of South CarolinaCharlestonSouth CarolinaUSA
- Hollings Cancer CenterMedical University of South CarolinaCharlestonSouth CarolinaUSA
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10
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Identification and Validation of Three Hub Genes Involved in Cell Proliferation and Prognosis of Castration-Resistant Prostate Cancer. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8761112. [PMID: 36035209 PMCID: PMC9402298 DOI: 10.1155/2022/8761112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 07/30/2022] [Accepted: 08/01/2022] [Indexed: 01/17/2023]
Abstract
Background The acquisition of castration resistance is lethal and inevitable in most prostate cancer patients under hormone therapy. However, effective biomarkers and therapeutic targets for castration-resistant prostate cancer remain to be defined. Methods Comprehensive bioinformatics tools were used to screen hub genes in castration-resistant prostate cancer and were verified in androgen-dependent prostate cancer and castration-resistant prostate cancer in TCGA and the SU2C/PCF Dream Team database, respectively. Gene set enrichment analysis and in vitro experiments were performed to determine the potential functions of hub genes involved in castration-resistant prostate cancer progression. Results Three hub genes were screened out by bioinformatics analysis: MCM4, CENPI, and KNTC1. These hub genes were upregulated in castration-resistant prostate cancer and showed high diagnostic and prognostic value. Moreover, the expression levels of the hub genes were positively correlated with neuroendocrine prostate cancer scores, which represent the degree of castration-resistant prostate cancer aggression. Meanwhile, in vitro experiments confirmed that hub gene expression was increased in castration-resistant prostate cancer cell lines and that inhibition of hub genes hindered cell cycle transition, resulting in suppression of castration-resistant prostate cancer cell proliferation, which confirmed the gene set enrichment analysis results. Conclusions MCM4, CENPI, and KNTC1 could serve as candidate diagnostic and prognostic biomarkers of castration-resistant prostate cancer and may provide potential preventive and therapeutic targets.
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11
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Quick J, Santos ND, Cheng MHY, Chander N, Brimacombe CA, Kulkarni J, van der Meel R, Tam YYC, Witzigmann D, Cullis PR. Lipid nanoparticles to silence androgen receptor variants for prostate cancer therapy. J Control Release 2022; 349:174-183. [PMID: 35780952 DOI: 10.1016/j.jconrel.2022.06.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/22/2022] [Accepted: 06/26/2022] [Indexed: 11/18/2022]
Abstract
Advanced-stage prostate cancer remains an incurable disease with poor patient prognosis. There is an unmet clinical need to target androgen receptor (AR) splice variants, which are key drivers of the disease. Some AR splice variants are insensitive to conventional hormonal or androgen deprivation therapy due to loss of the androgen ligand binding domain at the C-terminus and are constitutively active. Here we explore the use of RNA interference (RNAi) to target a universally conserved region of all AR splice variants for cleavage and degradation, thereby eliminating protein level resistance mechanisms. To this end, we tested five siRNA sequences designed against exon 1 of the AR mRNA and identified several that induced potent knockdown of full-length and truncated variant ARs in the 22Rv1 human prostate cancer cell line. We then demonstrated that 2'O methyl modification of the top candidate siRNA (siARvm) enhanced AR and AR-V7 mRNA silencing potency in both 22Rv1 and LNCaP cells, which represent two different prostate cancer models. For downstream in vivo delivery, we formulated siARvm-LNPs and functionally validated these in vitro by demonstrating knockdown of AR and AR-V7 mRNA in prostate cancer cells and loss of AR-mediated transcriptional activation of the PSA gene in both cell lines following treatment. We also observed that siARvm-LNP induced cell viability inhibition was more potent compared to LNP containing siRNA targeting full-length AR mRNA (siARfl-LNP) in 22Rv1 cells as their proliferation is more dependent on AR splice variants than LNCaP and PC3 cells. The in vivo biodistribution of siARvm-LNPs was determined in 22Rv1 tumor-bearing mice by incorporating 14C-radiolabelled DSPC in LNP formulation, and we observed a 4.4% ID/g tumor accumulation following intravenous administration. Finally, treatment of 22Rv1 tumor bearing mice with siARvm-LNP resulted in significant tumor growth inhibition and survival benefit compared to siARfl-LNP or the siLUC-LNP control. To best of our knowledge, this is the first report demonstrating therapeutic effects of LNP-siRNA targeting AR splice variants in prostate cancer.
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Affiliation(s)
- Joslyn Quick
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Nancy Dos Santos
- BC Cancer Research Institute, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Miffy H Y Cheng
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Nisha Chander
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Cedric A Brimacombe
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Jayesh Kulkarni
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Roy van der Meel
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Yuen Yi C Tam
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Dominik Witzigmann
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Pieter R Cullis
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada.
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Moreira-Silva F, Henrique R, Jerónimo C. From Therapy Resistance to Targeted Therapies in Prostate Cancer. Front Oncol 2022; 12:877379. [PMID: 35686097 PMCID: PMC9170957 DOI: 10.3389/fonc.2022.877379] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/25/2022] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer (PCa) is the second most common malignancy among men worldwide. Although early-stage disease is curable, advanced stage PCa is mostly incurable and eventually becomes resistant to standard therapeutic options. Different genetic and epigenetic alterations are associated with the development of therapy resistant PCa, with specific players being particularly involved in this process. Therefore, identification and targeting of these molecules with selective inhibitors might result in anti-tumoral effects. Herein, we describe the mechanisms underlying therapy resistance in PCa, focusing on the most relevant molecules, aiming to enlighten the current state of targeted therapies in PCa. We suggest that selective drug targeting, either alone or in combination with standard treatment options, might improve therapeutic sensitivity of resistant PCa. Moreover, an individualized analysis of tumor biology in each PCa patient might improve treatment selection and therapeutic response, enabling better disease management.
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Affiliation(s)
- Filipa Moreira-Silva
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (He-alth Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Centre (Porto.CCC), Porto, Portugal
| | - Rui Henrique
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (He-alth Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Centre (Porto.CCC), Porto, Portugal.,Department of Pathology, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal.,Department of Pathology and Molecular Immunology, School of Medicine and Biomedical Sciences of the University of Porto (ICBAS-UP), Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (He-alth Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Centre (Porto.CCC), Porto, Portugal.,Department of Pathology and Molecular Immunology, School of Medicine and Biomedical Sciences of the University of Porto (ICBAS-UP), Porto, Portugal
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13
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Firlej V, Soyeux P, Nourieh M, Huet E, Semprez F, Allory Y, Londono-Vallejo A, de la Taille A, Vacherot F, Destouches D. Overexpression of Nucleolin and Associated Genes in Prostate Cancer. Int J Mol Sci 2022; 23:4491. [PMID: 35562881 PMCID: PMC9101690 DOI: 10.3390/ijms23094491] [Citation(s) in RCA: 5] [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] [Received: 03/14/2022] [Revised: 04/04/2022] [Accepted: 04/07/2022] [Indexed: 12/09/2022] Open
Abstract
Prostate cancer (PCa) is the second most frequent cancer and the fifth leading cause of cancer death in men worldwide. If local PCa presents a favorable prognosis, available treatments for advanced PCa display limiting benefits due to therapeutic resistances. Nucleolin (NCL) is a ubiquitous protein involved in numerous cell processes, such as ribosome biogenesis, cell cycles, or angiogenesis. NCL is overexpressed in several tumor types in which it has been proposed as a diagnostic and prognostic biomarker. In PCa, NCL has mainly been studied as a target for new therapeutic agents. Nevertheless, little data are available concerning its expression in patient tissues. Here, we investigated the expression of NCL using a new cohort from Mondor Hospital and data from published cohorts. Results were then compared with NCL expression using in vitro models. NCL was overexpressed in PCa tissues compared to the normal tissues, but no prognostic values were demonstrated. Nine genes were highly co-expressed with NCL in patient tissues and tumor prostate cell lines. Our data demonstrate that NCL is an interesting diagnostic biomarker and propose a signature of genes co-expressed with NCL.
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Affiliation(s)
- Virginie Firlej
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (V.F.); (P.S.); (E.H.); (A.d.l.T.); (F.V.)
| | - Pascale Soyeux
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (V.F.); (P.S.); (E.H.); (A.d.l.T.); (F.V.)
| | - Maya Nourieh
- Department of Pathology, Institut Curie, F-92210 Saint-Cloud, France; (M.N.); (Y.A.)
| | - Eric Huet
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (V.F.); (P.S.); (E.H.); (A.d.l.T.); (F.V.)
| | - Fannie Semprez
- SPPIN—Saints-Pères Paris Institute for the Neurosciences, Université de Paris, CNRS, F-75006 Paris, France;
| | - Yves Allory
- Department of Pathology, Institut Curie, F-92210 Saint-Cloud, France; (M.N.); (Y.A.)
- Institut Curie, PSL Research University, CNRS UMR 144, F-75005 Paris, France
| | - Arturo Londono-Vallejo
- Institut Curie, PSL Research University, CNRS UMR 3244 « Telomeres and Cancer », F-75005 Paris, France;
| | - Alexandre de la Taille
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (V.F.); (P.S.); (E.H.); (A.d.l.T.); (F.V.)
- AP-HP, Hôpital Henri-Mondor, Service Urologie, F-94010 Creteil, France
| | - Francis Vacherot
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (V.F.); (P.S.); (E.H.); (A.d.l.T.); (F.V.)
| | - Damien Destouches
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (V.F.); (P.S.); (E.H.); (A.d.l.T.); (F.V.)
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14
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Maeda S, Motegi T, Iio A, Kaji K, Goto-Koshino Y, Eto S, Ikeda N, Nakagawa T, Nishimura R, Yonezawa T, Momoi Y. Anti-CCR4 treatment depletes regulatory T cells and leads to clinical activity in a canine model of advanced prostate cancer. J Immunother Cancer 2022; 10:jitc-2021-003731. [PMID: 35131860 PMCID: PMC8804701 DOI: 10.1136/jitc-2021-003731] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2021] [Indexed: 12/15/2022] Open
Abstract
Background Targeting regulatory T cell (Treg) infiltration is an emerging strategy for cancer immunotherapy. However, its efficacy in advanced prostate cancer remains unclear. Here, we showed the therapeutic efficacy of anti-Treg treatment in a canine model of advanced prostate cancer. Methods We used dogs with naturally occurring prostate cancer to study the molecular mechanism underlying Treg infiltration and the effect of anti-Treg treatment. Tumor-infiltrating Tregs was evaluated by immunohistochemistry, and the association with prognosis was examined in dogs with spontaneous prostate cancer. The molecular mechanism of Treg infiltration was explored by RNA sequencing and protein analyses. A non-randomized canine clinical trial was conducted to define the therapeutic potential of anti-Treg treatment for advanced prostate cancer. Human prostate cancer datasets were analyzed to compare gene expression in dogs and humans. Results Tumor-infiltrating Tregs were associated with poor prognosis in dogs bearing spontaneous prostate cancer. RNA sequencing and protein analyses showed a possible link between the CCL17–CCR4 pathway and the increase of tumor-infiltrating Tregs. Dogs with advanced prostate cancer responded to mogamulizumab, a monoclonal antibody targeting CCR4, with decreased circulating Tregs, improved survival, and low incidence of clinically relevant adverse events. Urinary CCL17 concentration and BRAFV595E mutation were independently predictive of the response to mogamulizumab. Analysis of a transcriptomic dataset of human prostate cancer showed that the CCL17–CCR4 axis correlated with Foxp3. In silico survival analyses revealed that high expression of CCL17 was associated with poor prognosis. Immunohistochemistry confirmed that tumor-infiltrating Tregs expressed CCR4 in human patients with prostate cancer. Conclusions Anti-Treg treatment, through CCR4 blockade, may be a promising therapeutic approach for advanced prostate cancer in dogs and some population of human patients.
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Affiliation(s)
- Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Veterinary Medical Center, The University of Tokyo, Tokyo, Japan
| | - Aki Iio
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kenjiro Kaji
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuko Goto-Koshino
- Molecular Diagnostic Laboratory, Veterinary Medical Center, The University of Tokyo, Tokyo, Japan
| | - Shotaro Eto
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Namiko Ikeda
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ryohei Nishimura
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasuyuki Momoi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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15
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Jeong SH, Kwak C. Immunotherapy for prostate cancer: Requirements for a successful regime transfer. Investig Clin Urol 2022; 63:3-13. [PMID: 34983117 PMCID: PMC8756154 DOI: 10.4111/icu.20210369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/27/2021] [Accepted: 11/07/2021] [Indexed: 11/18/2022] Open
Abstract
Despite the revolutionary progress in cancer treatment using immune checkpoint inhibitors (ICIs), remarkable responses in prostate cancer treatment have not yet been achieved. The disappointing previous results of ICIs have required further studies towards combined treatment targeting other pathways and restricted the eligibility criteria for patients with high mutation burdens, especially those with mismatch repair deficiency. Cancer immunotherapies activate adaptive immune systems, rather than directly attack tumor cells with their own cytotoxicity. Therefore, refractoriness to ICIs can not only be derived from the intractable nature of tumor cells per se , but also from their hostile milieu. Here, we reviewed the prostate cancer immunotherapies exploring clinical trials to date, along with the molecular characteristics of prostate cancer and its microenvironment.
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Affiliation(s)
- Seung-Hwan Jeong
- Department of Urology, Seoul National University Hospital, Seoul, Korea
| | - Cheol Kwak
- Department of Urology, Seoul National University Hospital, Seoul, Korea.,Department of Urology, Seoul National University College of Medicine, Seoul, Korea.
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16
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Chaves LP, Melo CM, Saggioro FP, dos Reis RB, Squire JA. Epithelial-Mesenchymal Transition Signaling and Prostate Cancer Stem Cells: Emerging Biomarkers and Opportunities for Precision Therapeutics. Genes (Basel) 2021; 12:1900. [PMID: 34946849 PMCID: PMC8701270 DOI: 10.3390/genes12121900] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 12/24/2022] Open
Abstract
Prostate cancers may reactivate a latent embryonic program called the epithelial-mesenchymal transition (EMT) during the development of metastatic disease. Through EMT, tumors can develop a mesenchymal phenotype similar to cancer stem cell traits that contributes to metastasis and variation in therapeutic responses. Some of the recurrent somatic mutations of prostate cancer affect EMT driver genes and effector transcription factors that induce the chromatin- and androgen-dependent epigenetic alterations that characterize castrate-resistant prostate cancer (CRPC). EMT regulators in prostate cancer comprise transcription factors (SNAI1/2, ZEB1, TWIST1, and ETS), tumor suppressor genes (RB1, PTEN, and TP53), and post-transcriptional regulators (miRNAs) that under the selective pressures of antiandrogen therapy can develop an androgen-independent metastatic phenotype. In prostate cancer mouse models of EMT, Slug expression, as well as WNT/β-Catenin and notch signaling pathways, have been shown to increase stemness potential. Recent single-cell transcriptomic studies also suggest that the stemness phenotype of advanced prostate cancer may be related to EMT. Other evidence correlates EMT and stemness with immune evasion, for example, activation of the polycomb repressor complex I, promoting EMT and stemness and cytokine secretion through RB1, TP53, and PRC1. These findings are helping clinical trials in CRPC that seek to understand how drugs and biomarkers related to the acquisition of EMT can improve drug response.
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Affiliation(s)
- Luiz Paulo Chaves
- Department of Genetics, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14048-900, SP, Brazil; (L.P.C.); (C.M.M.)
| | - Camila Morais Melo
- Department of Genetics, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14048-900, SP, Brazil; (L.P.C.); (C.M.M.)
| | - Fabiano Pinto Saggioro
- Pathology Department, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14048-900, SP, Brazil;
| | - Rodolfo Borges dos Reis
- Division of Urology, Department of Surgery and Anatomy, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14048-900, SP, Brazil;
| | - Jeremy Andrew Squire
- Department of Genetics, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14048-900, SP, Brazil; (L.P.C.); (C.M.M.)
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada
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17
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Saldana C, Majidipur A, Beaumont E, Huet E, de la Taille A, Vacherot F, Firlej V, Destouches D. Extracellular Vesicles in Advanced Prostate Cancer: Tools to Predict and Thwart Therapeutic Resistance. Cancers (Basel) 2021; 13:cancers13153791. [PMID: 34359692 PMCID: PMC8345194 DOI: 10.3390/cancers13153791] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 02/07/2023] Open
Abstract
Prostate cancer (PCa) is the second most frequent cancer and the fifth leading cause of cancer death among men worldwide. At first, advanced PCa is treated by androgen deprivation therapy with a good initial response. Nevertheless, recurrences occur, leading to Castrate-Resistance Prostate Cancer (CRPC). During the last decade, new therapies based on inhibition of the androgen receptor pathway or taxane chemotherapies have been used to treat CRPC patients leading to an increase in overall survival, but the occurrence of resistances limits their benefits. Numerous studies have demonstrated the implication of extracellular vesicles (EVs) in different cancer cellular mechanisms. Thus, the possibility to isolate and explore EVs produced by tumor cells in plasma/sera represents an important opportunity for the deciphering of those mechanisms and the discovery of biomarkers. Herein, we summarized the role of EVs in therapeutic resistance of advanced prostate cancer and their use to find biomarkers able to predict these resistances.
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Affiliation(s)
- Carolina Saldana
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (C.S.); (A.M.); (E.B.); (E.H.); (A.d.l.T.); (F.V.); (V.F.)
- AP-HP, Hopital Henri-Mondor, Service Oncologie, F-94010 Creteil, France
| | - Amene Majidipur
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (C.S.); (A.M.); (E.B.); (E.H.); (A.d.l.T.); (F.V.); (V.F.)
| | - Emma Beaumont
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (C.S.); (A.M.); (E.B.); (E.H.); (A.d.l.T.); (F.V.); (V.F.)
| | - Eric Huet
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (C.S.); (A.M.); (E.B.); (E.H.); (A.d.l.T.); (F.V.); (V.F.)
| | - Alexandre de la Taille
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (C.S.); (A.M.); (E.B.); (E.H.); (A.d.l.T.); (F.V.); (V.F.)
- AP-HP, Hopital Henri-Mondor, Service Urologie, F-94010 Creteil, France
| | - Francis Vacherot
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (C.S.); (A.M.); (E.B.); (E.H.); (A.d.l.T.); (F.V.); (V.F.)
| | - Virginie Firlej
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (C.S.); (A.M.); (E.B.); (E.H.); (A.d.l.T.); (F.V.); (V.F.)
| | - Damien Destouches
- Univ Paris Est Creteil, TRePCa, F-94010 Creteil, France; (C.S.); (A.M.); (E.B.); (E.H.); (A.d.l.T.); (F.V.); (V.F.)
- Correspondence: ; Tel.: +33-(0)1-49-81-36-14; Fax: +33-(0)1-49-81-39-00
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18
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Pacheco MB, Camilo V, Lopes N, Moreira-Silva F, Correia MP, Henrique R, Jerónimo C. Hydralazine and Panobinostat Attenuate Malignant Properties of Prostate Cancer Cell Lines. Pharmaceuticals (Basel) 2021; 14:ph14070670. [PMID: 34358096 PMCID: PMC8308508 DOI: 10.3390/ph14070670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 12/23/2022] Open
Abstract
Among the well-established alterations contributing to prostate cancer (PCa) pathogenesis, epigenetics is an important player in its development and aggressive disease state. Moreover, since no curative therapies are available for advanced stage disease, there is an urgent need for novel therapeutic strategies targeting this subset of patients. Thus, we aimed to evaluate the combined antineoplastic effects of DNA methylation inhibitor hydralazine and histone deacetylase inhibitors panobinostat and valproic acid in several prostate cell lines. The effect of these drugs was assessed in four PCa (LNCaP, 22Rv1, DU145 and PC-3) cell lines, as well as in non-malignant epithelial (RWPE-1) and stromal (WPMY-1) cell lines, using several assays to evaluate cell viability, apoptosis, proliferation, DNA damage and clonogenic potential. We found that exposure to each epidrug separately reduced viability of all PCa cells in a dose-dependent manner and that combined treatments led to synergic growth inhibitory effects, impacting also on colony formation, invasion, apoptotic and proliferation rates. Interestingly, antitumoral effects of combined treatment were particularly expressive in DU145 cells. We concluded that hydralazine and panobinostat attenuate malignant properties of PCa cells, constituting a potential therapeutic tool to counteract PCa progression.
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Affiliation(s)
- Mariana Brütt Pacheco
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (M.B.P.); (V.C.); (N.L.); (F.M.-S.); (M.P.C.); (R.H.)
| | - Vânia Camilo
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (M.B.P.); (V.C.); (N.L.); (F.M.-S.); (M.P.C.); (R.H.)
| | - Nair Lopes
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (M.B.P.); (V.C.); (N.L.); (F.M.-S.); (M.P.C.); (R.H.)
| | - Filipa Moreira-Silva
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (M.B.P.); (V.C.); (N.L.); (F.M.-S.); (M.P.C.); (R.H.)
| | - Margareta P. Correia
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (M.B.P.); (V.C.); (N.L.); (F.M.-S.); (M.P.C.); (R.H.)
- Department of Pathology and Molecular Immunology, School of Medicine and Biomedical Sciences, University of Porto (ICBAS-UP), Rua Jorge Viterbo Ferreira 228, 4050-513 Porto, Portugal
| | - Rui Henrique
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (M.B.P.); (V.C.); (N.L.); (F.M.-S.); (M.P.C.); (R.H.)
- Department of Pathology and Molecular Immunology, School of Medicine and Biomedical Sciences, University of Porto (ICBAS-UP), Rua Jorge Viterbo Ferreira 228, 4050-513 Porto, Portugal
- Department of Pathology, Portuguese Oncology Institute of Porto (IPOP), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology and Epigenetics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (M.B.P.); (V.C.); (N.L.); (F.M.-S.); (M.P.C.); (R.H.)
- Department of Pathology and Molecular Immunology, School of Medicine and Biomedical Sciences, University of Porto (ICBAS-UP), Rua Jorge Viterbo Ferreira 228, 4050-513 Porto, Portugal
- Correspondence: or ; Tel.: +351-225-084-000; Fax: +351-225-084-199
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19
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Pacheco MB, Camilo V, Henrique R, Jerónimo C. Epigenetic Editing in Prostate Cancer: Challenges and Opportunities. Epigenetics 2021; 17:564-588. [PMID: 34130596 DOI: 10.1080/15592294.2021.1939477] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Epigenome editing consists of fusing a predesigned DNA recognition unit to the catalytic domain of a chromatin modifying enzyme leading to the introduction or removal of an epigenetic mark at a specific locus. These platforms enabled the study of the mechanisms and roles of epigenetic changes in several research domains such as those addressing pathogenesis and progression of cancer. Despite the continued efforts required to overcome some limitations, which include specificity, off-target effects, efficacy, and longevity, these tools have been rapidly progressing and improving.Since prostate cancer is characterized by multiple genetic and epigenetic alterations that affect different signalling pathways, epigenetic editing constitutes a promising strategy to hamper cancer progression. Therefore, by modulating chromatin structure through epigenome editing, its conformation might be better understood and events that drive prostate carcinogenesis might be further unveiled.This review describes the different epigenome engineering tools, their mechanisms concerning gene's expression and regulation, highlighting the challenges and opportunities concerning prostate cancer research.
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Affiliation(s)
- Mariana Brütt Pacheco
- Cancer Biology and Epigenetics Group, Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto) & Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, Porto, Portugal
| | - Vânia Camilo
- Cancer Biology and Epigenetics Group, Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto) & Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, Porto, Portugal
| | - Rui Henrique
- Cancer Biology and Epigenetics Group, Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto) & Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, Porto, Portugal.,Department of Pathology, Portuguese Oncology Institute of Porto (IPOP), R. DR. António Bernardino De Almeida, Porto, Portugal.,Department of Pathology and Molecular Immunology, School of Medicine & Biomedical Sciences, University of Porto (ICBAS-UP), Rua Jorge Viterbo Ferreira 228, Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology and Epigenetics Group, Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto) & Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, Porto, Portugal.,Department of Pathology and Molecular Immunology, School of Medicine & Biomedical Sciences, University of Porto (ICBAS-UP), Rua Jorge Viterbo Ferreira 228, Porto, Portugal
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20
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Henkenberens C, Derlin T, Bengel F, Ross TL, Kuczyk MA, Giordano FA, Sarria GR, Schmeel LC, Christiansen H, von Klot CAJ. Efficacy of PSMA PET-Guided Radiotherapy for Oligometastatic Castrate-Resistant Prostate Cancer. Front Oncol 2021; 11:664225. [PMID: 33954116 PMCID: PMC8089391 DOI: 10.3389/fonc.2021.664225] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/08/2021] [Indexed: 01/15/2023] Open
Abstract
Purpose To assess the outcome of radiotherapy (RT) to all PSMA ligand positive metastases for patients with castrate-resistant prostate cancer (mCRPC). Patients and methods A total of 42 patients developed oligometastatic mCRPC and received PSMA PET-guided RT of all metastases. The main outcome parameters were biochemical progression-free survival (bPFS), and second-line systemic treatment free survival (SST-FS). Results A total of 141 PSMA ligand-positive metastases were irradiated. The median follow-up time was 39.0 months (12-58 months). During the follow-up five out of 42 (11.9%) patients died of progressive mPCa. Five out of 42 (11.9%) patients showed no biochemical responses and presented with a PSA level ≥10% of the baseline PSA at first PSA level measurement after RT and were classified as non-responders. The median PSA level before RT was 4.79 ng/mL (range, 0.4-46.1), which decreased significantly to a median PSA nadir level of 0.39 ng/mL (range, <0.07-32.8; p=0.002). The median PSA level at biochemical progression after PSMA ligand-based RT was 2.75 ng/mL (range, 0.27-53.0; p=0.24) and was not significantly different (p=0.29) from the median PSA level (4.79 ng/mL, range, 0.4-46.1) before the PSMA ligand-based RT. The median bPFS was 12.0 months after PSMA ligand PET-based RT (95% CI, 11.2-15.8) and the median SST-FS was 15.0 months (95% CI, 14.0-21.5). Conclusion In well-informed and closely followed-up patients, PSMA PET-guided RT represents a viable treatment option for patients with oligometastatic mCRPC to delay further systemic therapies.
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Affiliation(s)
- Christoph Henkenberens
- Department of Radiotherapy and Special Oncology, Hannover Medical School, Hannover, Germany.,Department of Radiation Oncology, University Hospital Bonn, Bonn, Germany
| | - Thorsten Derlin
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
| | - Frank Bengel
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
| | - Tobias L Ross
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
| | - Markus A Kuczyk
- Department of Urology and Urologic Oncology, Hannover Medical School, Hannover, Germany
| | - Frank A Giordano
- Department of Radiation Oncology, University Hospital Bonn, Bonn, Germany
| | - Gustavo R Sarria
- Department of Radiation Oncology, University Hospital Bonn, Bonn, Germany
| | | | - Hans Christiansen
- Department of Radiotherapy and Special Oncology, Hannover Medical School, Hannover, Germany
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21
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Handley NR, Feng FY, Guise TA, D'Andrea D, Kelly WK, Gomella LG. Preserving Well-being in Patients With Advanced and Late Prostate Cancer. Urology 2020; 155:199-209. [PMID: 33373704 DOI: 10.1016/j.urology.2020.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/23/2020] [Accepted: 12/13/2020] [Indexed: 10/22/2022]
Abstract
Androgen deprivation therapy, alone or in combination with androgen signaling inhibitors, is a treatment option for patients with advanced prostate cancer (PC). When making treatment decisions, health care providers must consider the long-term effects of treatment on the patient's overall health and well-being. Herein, we review the effects of these treatments on the musculoskeletal and cardiovascular systems, cognition, and fall risk, and provide management approaches for each. We also include an algorithm to help health care providers implement best clinical practices and interdisciplinary care for preserving the overall well-being of PC patients.
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Affiliation(s)
- Nathan R Handley
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA.
| | - Felix Y Feng
- Departments of Radiation Oncology, Urology, and Medicine, Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA
| | - Theresa A Guise
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | | | - William Kevin Kelly
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA; Department of Urology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA
| | - Leonard G Gomella
- Department of Urology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA
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22
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Patra P, Bhattacharya M, Sharma AR, Ghosh P, Sharma G, Patra BC, Mallick B, Lee SS, Chakraborty C. Identification and Design of a Next-Generation Multi Epitopes Bases Peptide Vaccine Candidate Against Prostate Cancer: An In Silico Approach. Cell Biochem Biophys 2020; 78:495-509. [PMID: 32347457 DOI: 10.1007/s12013-020-00912-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/07/2020] [Indexed: 12/28/2022]
Abstract
Prostate cancer (PCa) is the second most diagnosed cancer in men and ranked fifth in overall cancer diagnosis. During the past decades, it has arisen as a significant life-threatening disease in men at an older age. At the early onset of illness when it is in localized form, radiation and surgical treatments are applied against this disease. In case of adverse situations androgen deprivation therapy, chemotherapy, hormonal therapy, etc. are widely used as a therapeutic element. However, studies found the occurrences of several side effects after applying these therapies. In current work, several immunoinformatic techniques were applied to formulate a multi-epitopic vaccine from the overexpressed antigenic proteins of PCa. A total of 13 epitopes were identified from the five prostatic antigenic proteins (PSA, PSMA, PSCA, STEAP, and PAP), after validation with several in silico tools. These epitopes were fused to form a vaccine element by (GGGGS)3 peptide linker. Afterward, 5, 6-dimethylxanthenone-4-acetic acid (DMXAA) was used as an adjuvant to initiate and induce STING-mediated cytotoxic cascade. In addition, molecular docking was performed between the vaccine element and HLA class I antigen with the low ACE value of -251 kcal/mol which showed a significant binding. Molecular simulation using normal mode analysis (NMA) illustrated the docking complex as a stable one. Therefore, this observation strongly indicated that our multi epitopes bases peptide vaccine molecule will be an effective candidate for the treatment of the PCa.
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Affiliation(s)
- Prasanta Patra
- Department of Zoology, Vidyasagar University, Midnapore, West Bengal, 721102, India
| | - Manojit Bhattacharya
- Department of Zoology, Vidyasagar University, Midnapore, West Bengal, 721102, India
- Institute for Skeletal Aging & Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, 24252, Republic of Korea
| | - Ashish Ranjan Sharma
- Institute for Skeletal Aging & Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, 24252, Republic of Korea
| | - Pratik Ghosh
- Department of Zoology, Vidyasagar University, Midnapore, West Bengal, 721102, India
| | - Garima Sharma
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Bidhan Chandra Patra
- Department of Zoology, Vidyasagar University, Midnapore, West Bengal, 721102, India
| | - Bidyut Mallick
- Departments of Applied Science, Galgotias College of Engineering and Technology, Greater Noida, India
| | - Sang-Soo Lee
- Institute for Skeletal Aging & Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, 24252, Republic of Korea.
| | - Chiranjib Chakraborty
- Institute for Skeletal Aging & Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, 24252, Republic of Korea.
- Adamas University, North, 24 Parganas, Kolkata, West Bengal, 700126, India.
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Akoto T, Bhagirath D, Saini S. MicroRNAs in treatment-induced neuroendocrine differentiation in prostate cancer. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2020; 3:804-818. [PMID: 33426506 PMCID: PMC7793563 DOI: 10.20517/cdr.2020.30] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Prostate cancer is a condition commonly associated with men worldwide. Androgen deprivation therapy remains one of the targeted therapies. However, after some years, there is biochemical recurrence and metastatic progression into castration-resistant prostate cancer (CRPC). CRPC cases are treated with second-line androgen deprivation therapy, after which, these CRPCs transdifferentiate to form neuroendocrine prostate cancer (NEPC), a highly aggressive variant of CRPC. NEPC arises via a reversible transdifferentiation process, known as neuroendocrine differentiation (NED), which is associated with altered expression of lineage markers such as decreased expression of androgen receptor and increased expression of neuroendocrine lineage markers including enolase 2, chromogranin A and synaptophysin. The etiological factors and molecular basis for NED are poorly understood, contributing to a lack of adequate molecular biomarkers for its diagnosis and therapy. Therefore, there is a need to fully understand the underlying molecular basis for this cancer. Recent studies have shown that microRNAs (miRNAs) play a key epigenetic role in driving therapy-induced NED in prostate cancer. In this review, we briefly describe the role of miRNAs in prostate cancer and CRPCs, discuss some key players in NEPCs and elaborate on miRNA dysregulation as a key epigenetic process that accompanies therapy-induced NED in metastatic CRPC. This understanding will contribute to better clinical management of the disease.
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Affiliation(s)
- Theresa Akoto
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA 30912, USA
| | - Divya Bhagirath
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, GA 30912, USA
| | - Sharanjot Saini
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, GA 30912, USA
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VIRMA-Dependent N6-Methyladenosine Modifications Regulate the Expression of Long Non-Coding RNAs CCAT1 and CCAT2 in Prostate Cancer. Cancers (Basel) 2020; 12:cancers12040771. [PMID: 32218194 PMCID: PMC7226055 DOI: 10.3390/cancers12040771] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/18/2020] [Accepted: 03/24/2020] [Indexed: 01/26/2023] Open
Abstract
RNA methylation at position N6 in adenosine (m6A) and its associated methyltransferase complex (MTC) are involved in tumorigenesis. We aimed to explore m6A biological function for long non-coding RNAs (lncRNAs) in prostate cancer (PCa) and its clinical significance. m6A and MTC levels in PCa cells were characterized by ELISA and western blot. Putative m6A-regulated lncRNAs were identified and validated by lncRNA profiler qPCR array and bioinformatics analysis, followed by m6A/RNA co-immunoprecipitation. Impact of m6A depletion on RNA stability was assessed by Actinomycin D assay. The association of m6A-levels with PCa prognosis was examined in clinical samples. Higher m6A-levels and VIRMA overexpression were detected in metastatic castration-resistant PCa (mCRPC) cells (p < 0.05). VIRMA knockdown in PC-3 cells significantly decreased m6A-levels (p = 0.0317), attenuated malignant phenotype and suppressed the expression of oncogenic lncRNAs CCAT1 and CCAT2 (p < 0.00001). VIRMA depletion and m6A reduction decreased the stability and abundance of CCAT1/2 transcripts. Higher expression of VIRMA, CCAT1, and CCAT2 as a group variable was an independent predictor of poor prognosis (HR = 9.083, CI95% 1.911–43.183, p = 0.006). VIRMA is a critical factor sustaining m6A-levels in PCa cells. VIRMA downregulation attenuates the aggressive phenotype of PCa by overall reduction of m6A-levels decreasing stability and abundance of oncogenic lncRNAs.
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Liao Y, Liu Y, Xia X, Shao Z, Huang C, He J, Jiang L, Tang D, Liu J, Huang H. Targeting GRP78-dependent AR-V7 protein degradation overcomes castration-resistance in prostate cancer therapy. Am J Cancer Res 2020; 10:3366-3381. [PMID: 32206096 PMCID: PMC7069092 DOI: 10.7150/thno.41849] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 01/26/2020] [Indexed: 01/09/2023] Open
Abstract
Rationale: Androgen receptor splice variant 7 (AR-V7) is a leading cause of the development of castration-resistant prostate cancer (CRPC). However, the regulation and function of AR-V7 at levels of post-translational modifications in prostate cancer therapy remain poorly understood. Here, we conducted a library screen of natural products to identify potential small molecules responsible for AR-V7 protein degradation in human prostate cancer cell lines. Methods: A natural product library was used to screen the inhibitor of AR-V7. Co-IP and biomass spectrum assays were used to identify the AR-V7-interacting proteins, whereas western blot, confocal microscopy, RNA interfering, and gene transfection were used to validate these interactions. Cell viability, EDU staining, and colony formation assays were employed to detect cell growth and proliferation. Flowcytometry assays were used to detect the distribution of cell cycle. Mouse xenograft models were used to study the anti-CRPC effects in vivo. Results: This screen identified rutaecarpine, one of the major components of the Chinese medicine Evodia rutaecarpa, as a novel chemical that selectively induces AR-V7 protein degradation via K48-linked ubiquitination. Mechanically, this effect relies on rutaecarpine inducing the formation of a GRP78-AR-V7 protein complex, which further recruits the E3 ligase SIAH2 to directly promote the ubiquitination of AR-V7. Consequently, the genetic and pharmacological activation of the GRP78-dependent AR-V7 protein degradation restores the sensitivity of castration-resistant prostate cancer to anti-androgen therapy in cell culture and animal models. Conclusions: These findings not only provide a new approach for overcoming castration-resistance in prostate cancer therapy, but also increase our understanding about the interplay between molecular chaperones and ubiquitin ligase in shaping protein stability.
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Ghafoor S, Burger IA, Vargas AH. Multimodality Imaging of Prostate Cancer. J Nucl Med 2019; 60:1350-1358. [PMID: 31481573 DOI: 10.2967/jnumed.119.228320] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 08/29/2019] [Indexed: 01/02/2023] Open
Abstract
Prostate cancer is a very heterogeneous disease, and contemporary management is focused on identification and treatment of the prognostically adverse high-risk tumors while minimizing overtreatment of indolent, low-risk tumors. In recent years, imaging has gained increasing importance in the detection, staging, posttreatment assessment, and detection of recurrence of prostate cancer. Several imaging modalities including conventional and functional methods are used in different clinical scenarios with their very own advantages and limitations. This continuing medical education article provides an overview of available imaging modalities currently in use for prostate cancer followed by a more specific section on the value of these different imaging modalities in distinct clinical scenarios, ranging from initial diagnosis to advanced, metastatic castration-resistant prostate cancer. In addition to established imaging indications, we will highlight some potential future applications of contemporary imaging modalities in prostate cancer.
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Affiliation(s)
- Soleen Ghafoor
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York; and
| | - Irene A Burger
- Department of Nuclear Medicine, Baden Cantonal Hospital, Baden, Switzerland
| | - Alberto H Vargas
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York; and
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27
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Senbanjo LT, AlJohani H, Majumdar S, Chellaiah MA. Characterization of CD44 intracellular domain interaction with RUNX2 in PC3 human prostate cancer cells. Cell Commun Signal 2019; 17:80. [PMID: 31331331 PMCID: PMC6647163 DOI: 10.1186/s12964-019-0395-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 07/15/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Expression of CD44 receptor is associated with the onset of several tumors. The intracellular domain of CD44 (CD44-ICD) has been implicated as a co-transcription factor for RUNX2 in the regulation of expression of MMP-9 in breast carcinoma cells. Previous studies from our laboratory demonstrated the role of CD44 in migration and invasion of PC3 prostate cells through activation of MMP-9. CD44 signaling regulates the phosphorylation and hence the localization of RUNX2 in the nucleus. The role of CD44-ICD has not been studied in prostate cancer cells. This study aimed to explore the role of CD44-ICD and RUNX2 in the regulation of expression of metastasis-related genes. METHODS PC3 and PC3 cells overexpressing RUNX2 protein were analyzed for RUNX2/CD44-ICD interaction by immunoprecipitation, immunoblotting, and Immunofluorescence analyses. Wound healing and tumorsphere formation analyses were also done in these cells. The real-time PCR analysis was used to detect the expression levels of different genes. RESULTS Expression of CD44 and RUNX2 was observed only in PC3 cells (androgen receptor positive) and not in LNCaP or PCa2b cells (androgen receptor negative). Therefore, CD44-ICD fragment (~ 15-16 kDa) was observed in PC3 cells. Moreover, localization of CD44-ICD was more in the nucleus than in the cytoplasm of PC3 cells. Inhibition of cleavage of CD44 with a γ-secretase inhibitor, DAPT reduced the formation of CD44-ICD; however, accumulation of CD44-external truncation fragments (~ 20 and ~ 25 kDa) was detected. RUNX2 and CD44-ICD interact in the nucleus of PC3 cells, and this interaction was more in PC3 cells transfected with RUNX2 cDNA. Overexpression of RUNX2 augments the expression of metastasis-related genes (e.g., MMP-9 and osteopontin) which resulted in increased migration and tumorsphere formation. CONCLUSIONS We have shown here a strong functional relationship between CD44-ICD and RUNX2 in PC3 cells. RUNX2 forms a complex with CD44-ICD as a co-transcriptional factor, and this complex formation not only activates the expression of metastasis-related genes but also contributes to migration and tumorsphere formation. Therefore, RUNX2 and CD44-ICD are potential targets for anti-cancer therapy, and attenuation of their interaction may validate the regulatory effects of these proteins on cancer migration and progression.
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Affiliation(s)
- Linda T Senbanjo
- Department of Oncology and Diagnostic Sciences, University of Maryland Dental School, 650 W Baltimore St., 7th floor (south), Rm7207, Baltimore, MD, 21201, USA
| | - Hanan AlJohani
- Department of Oncology and Diagnostic Sciences, University of Maryland Dental School, 650 W Baltimore St., 7th floor (south), Rm7207, Baltimore, MD, 21201, USA
| | - Sunipa Majumdar
- Department of Oncology and Diagnostic Sciences, University of Maryland Dental School, 650 W Baltimore St., 7th floor (south), Rm7207, Baltimore, MD, 21201, USA
| | - Meenakshi A Chellaiah
- Department of Oncology and Diagnostic Sciences, University of Maryland Dental School, 650 W Baltimore St., 7th floor (south), Rm7207, Baltimore, MD, 21201, USA.
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Distinct biological responses of metastatic castration resistant prostate cancer cells upon exposure to G-quadruplex interacting naphthalenediimide derivatives. Eur J Med Chem 2019; 177:401-413. [PMID: 31158753 DOI: 10.1016/j.ejmech.2019.05.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/21/2019] [Accepted: 05/23/2019] [Indexed: 12/23/2022]
Abstract
Small molecules able to bind non-canonical G-quadruplex DNA structures (G4) have been recently tested as novel potential agents for the treatment of prostate cancer thanks to their repression of aberrant androgen receptor gene. However, metastatic castration-resistant prostate cancer (mCRPC), a letal form of prostate cancer, is still incurable. Here we tested two naphthalenediimide derivatives, previously reported as multitarget agents, on a couple of relevant mCRPC cell models (DU145 and PC-3). We showed that these compounds interfere with the RAS/MEK/ERK and PI3K/AKT pathways. Interestingly, both these two biological processes depend upon Epidermal Growth Factor Receptor (EGFR) activation. By means of biological and analytical tools we showed that our compounds are efficient inducers of the structural transition of the EGFR promoter towards a G-quadruplex conformation, ultimately leading to a reduction of the receptor production. The overall result is an interesting cytotoxic profile for these two derivatives. Thanks to their activity at different steps, these compounds can open the way to novel therapeutic approaches for mCRPC that could contribute to escape resistance to selective treatments.
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Lin J, Lu Y, Zhang X, Mo Q, Yu L. Effect of miR-200c on proliferation, invasion and apoptosis of prostate cancer LNCaP cells. Oncol Lett 2019; 17:4299-4304. [PMID: 30944624 PMCID: PMC6444304 DOI: 10.3892/ol.2019.10102] [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] [Received: 06/11/2018] [Accepted: 01/28/2019] [Indexed: 01/24/2023] Open
Abstract
Effect of miRNA-200c (miR-200c) on the proliferation, invasion and apoptosis of prostate cancer cell line LNCaP was investigated. The difference in miR-200c expression was observed using RT-qPCR in the NC group (transfected empty plasmid), simulation group (simulation sequence) and inhibition group (transferred inhibition sequence), which were established by transfecting LNCaP cells with a kit. The proliferation, invasion and apoptosis of cells after transfection were detected using the cell counting kit-8 (CCK-8) method, Transwell chamber and flow cytometry. RT-qPCR detection showed that the relative expression of miR-200c in LNCaP cells significantly increased compared with RWPE-1 cells (P<0.05). The difference was statistically significant in the relative expression of miR-200c cells among NC group, simulation group and inhibition group after transfection (P<0.05) and they significantly decreased in NC group of cells compared with the simulation group (P<0.05). CCK-8 detection showed that there were differences at the 2nd, 3rd, 4th and 5th days of growth in the NC group, simulation group and inhibition group of cells (P<0.05) and there was a difference in the proliferation ability between NC group and simulation group (P<0.05). Transwell chamber detection showed that there was a difference in the invasion ability among NC group, simulation group and inhibition group of cells (P<0.05), among which the number of passed membrane cells in inhibition group was significantly smaller than that in NC group and simulation group (P<0.05), and the difference was not statistically significant between NC group and simulation group (P>0.05). Flow cytometry detection of the apoptosis ability of each group of cells showed that there was a difference in the apoptotic rate in the NC, simulation and inhibition groups (P<0.05). The low expression of miR-200c is beneficial to inhibit the proliferation and invasion of LNCaP cells in vitro and to promote apoptosis, which may be a potential target for prostate cancer biotherapy.
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Affiliation(s)
- Jianxi Lin
- Shengzhou People's Hospital, Shengzhou, Zhejiang 312400, P.R. China
| | - Yi Lu
- Shengzhou People's Hospital, Shengzhou, Zhejiang 312400, P.R. China
| | - Xiao Zhang
- Shengzhou People's Hospital, Shengzhou, Zhejiang 312400, P.R. China
| | - Qiwang Mo
- Shengzhou People's Hospital, Shengzhou, Zhejiang 312400, P.R. China
| | - Ling Yu
- Shengzhou People's Hospital, Shengzhou, Zhejiang 312400, P.R. China
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The Emerging Role of Epitranscriptomics in Cancer: Focus on Urological Tumors. Genes (Basel) 2018; 9:genes9110552. [PMID: 30428628 PMCID: PMC6265908 DOI: 10.3390/genes9110552] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/27/2018] [Accepted: 11/08/2018] [Indexed: 12/11/2022] Open
Abstract
Epitranscriptomics has gained ground in recent years, especially after the advent of techniques for accurately studying these mechanisms. Among all modifications occurring in RNA molecules, N6-methyladenosine (m6A) is the most frequent, especially among mRNAs. m6A has been demonstrated to play important roles in many physiological processes and several disease states, including various cancer models (from solid to liquid tumors). Tumor cells’ epitranscriptome is indeed disrupted in a way to promote cancer-prone features, by means of up/downregulating m6A-related players: the so-called writers, readers and erasers. These proteins modulate m6A establishment, removal and determine mRNAs fate, acting in a context-dependent manner, so that a single player may act as an oncogenic signal in one tumor model (methyltransferase like 3 (METTL3) in lung cancer) and as a tumor suppressor in another context (METTL3 in glioblastoma). Despite recent advances, however, little attention has been directed towards urological cancer. By means of a thorough analysis of the publicly available TCGA (The Cancer Genome Atlas) database, we disclosed the most relevant players in four major urogenital neoplasms—kidney, bladder, prostate and testicular cancer—for prognostic, subtype discrimination and survival purposes. In all tumor models assessed, the most promising player was shown to be Vir like m6A methyltransferase associated (VIRMA), which could constitute a potential target for personalized therapies.
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Tassinari M, Cimino-Reale G, Nadai M, Doria F, Butovskaya E, Recagni M, Freccero M, Zaffaroni N, Richter SN, Folini M. Down-Regulation of the Androgen Receptor by G-Quadruplex Ligands Sensitizes Castration-Resistant Prostate Cancer Cells to Enzalutamide. J Med Chem 2018; 61:8625-8638. [PMID: 30188709 DOI: 10.1021/acs.jmedchem.8b00502] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Stabilization of the G-quadruplexes (G4s) within the androgen receptor (AR) gene promoter to block transcription may represent an innovative approach to interfere with aberrant AR signaling in castration resistant prostate cancer (CRPC). A library of differently functionalized naphthalene diimides (NDIs) was screened for their ability to stabilize AR G4s: the core-extended NDI (7) stood out as the most promising ligand. AR-positive cells were remarkably sensitive to 7 in comparison to AR-negative CRCP or normal prostate epithelial cells; 7 induced remarkable impairment of AR mRNA and protein amounts and significant perturbations in the expression levels of KLK3 and of genes involved in the activation of AR program via feedback mechanisms. Moreover, 7 synergistically interacted with Enzalutamide, an inhibitor of AR signaling used in second-line therapies. Overall, our data show that stabilization of AR G4s may represent an alternative treatment options for CRPC and other malignancies relying on aberrant androgen signaling.
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Affiliation(s)
- Martina Tassinari
- Department of Molecular Medicine , University of Padua , via A. Gabelli 63 , 35121 Padua , Italy
| | - Graziella Cimino-Reale
- Department of Applied Research and Technological Development , Fondazione IRCCS Istituto Nazionale dei Tumori di Milano , Via G. A. Amadeo 42 , 20133 Milan , Italy
| | - Matteo Nadai
- Department of Molecular Medicine , University of Padua , via A. Gabelli 63 , 35121 Padua , Italy
| | - Filippo Doria
- Department of Chemistry , University of Pavia , v. le Taramelli 10 , 27100 , Pavia , Italy
| | - Elena Butovskaya
- Department of Molecular Medicine , University of Padua , via A. Gabelli 63 , 35121 Padua , Italy
| | - Marta Recagni
- Department of Applied Research and Technological Development , Fondazione IRCCS Istituto Nazionale dei Tumori di Milano , Via G. A. Amadeo 42 , 20133 Milan , Italy
| | - Mauro Freccero
- Department of Chemistry , University of Pavia , v. le Taramelli 10 , 27100 , Pavia , Italy
| | - Nadia Zaffaroni
- Department of Applied Research and Technological Development , Fondazione IRCCS Istituto Nazionale dei Tumori di Milano , Via G. A. Amadeo 42 , 20133 Milan , Italy
| | - Sara N Richter
- Department of Molecular Medicine , University of Padua , via A. Gabelli 63 , 35121 Padua , Italy
| | - Marco Folini
- Department of Applied Research and Technological Development , Fondazione IRCCS Istituto Nazionale dei Tumori di Milano , Via G. A. Amadeo 42 , 20133 Milan , Italy
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Androgen-targeted therapy in men with prostate cancer: evolving practice and future considerations. Prostate Cancer Prostatic Dis 2018; 22:24-38. [PMID: 30131604 PMCID: PMC6370592 DOI: 10.1038/s41391-018-0079-0] [Citation(s) in RCA: 192] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/12/2018] [Accepted: 07/20/2018] [Indexed: 02/07/2023]
Abstract
Background Androgen deprivation therapy (ADT) is foundational in the management of advanced prostate cancer (PCa) and has benefitted from a recent explosion in scientific advances. These include approval of new therapies that suppress testosterone (T) levels or inactivate its function, improvements in diagnostic and assay technologies, identification of lower therapeutic targets for T, discovery of the relevance of germline genetic mutations and identification of the benefits of sequential and combination therapies. Methods This review discusses the clinical profiles of the most up-to-date options for ADT, best practices for managing patients with advanced PCa and future directions in therapy. Results and conclusions Modern assay technologies reveal that bilateral orchiectomy results in a serum T level of approximately 15 ng/dL as compared to the historical definition of castration of T < 50 ng/dL. Evidence shows that lowering T levels to <20 ng/dL improves patient survival and delays disease progression. Routine monitoring of T in addition to prostate-specific antigen throughout treatment is important to ensure continuing efficacy of T suppression. New drugs that inhibit androgen signaling in combination with traditional ADT suppress T activity to near zero and have significantly improved patient survival. When personalizing ADT regimens physicians should consider a number of factors including initiation and duration of ADT, monitoring of T levels and PSA, the possibility of switching monotherapies if a patient does not achieve adequate T suppression, and consideration of intermittent vs. continuous ADT according to patients’ lifestyles, comorbidities, risk factors and tolerance to treatment.
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Jolly MK, Kulkarni P, Weninger K, Orban J, Levine H. Phenotypic Plasticity, Bet-Hedging, and Androgen Independence in Prostate Cancer: Role of Non-Genetic Heterogeneity. Front Oncol 2018; 8:50. [PMID: 29560343 PMCID: PMC5845637 DOI: 10.3389/fonc.2018.00050] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 02/19/2018] [Indexed: 12/21/2022] Open
Abstract
It is well known that genetic mutations can drive drug resistance and lead to tumor relapse. Here, we focus on alternate mechanisms-those without mutations, such as phenotypic plasticity and stochastic cell-to-cell variability that can also evade drug attacks by giving rise to drug-tolerant persisters. The phenomenon of persistence has been well-studied in bacteria and has also recently garnered attention in cancer. We draw a parallel between bacterial persistence and resistance against androgen deprivation therapy in prostate cancer (PCa), the primary standard care for metastatic disease. We illustrate how phenotypic plasticity and consequent mutation-independent or non-genetic heterogeneity possibly driven by protein conformational dynamics can stochastically give rise to androgen independence in PCa, and suggest that dynamic phenotypic plasticity should be considered in devising therapeutic dosing strategies designed to treat and manage PCa.
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Affiliation(s)
- Mohit Kumar Jolly
- Center for Theoretical Biological Physics, Rice University, Houston, TX, United States
| | - Prakash Kulkarni
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, MD, United States
| | - Keith Weninger
- Department of Physics, North Carolina State University, Raleigh, NC, United States
| | - John Orban
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, MD, United States
- Department of Chemistry and Biochemistry, University of Maryland, College Park, College Park, United States
| | - Herbert Levine
- Center for Theoretical Biological Physics, Rice University, Houston, TX, United States
- Department of Bioengineering, Rice University, Houston, TX, United States
- Department of Physics and Astronomy, Rice University, Houston, TX, United States
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Elkon JM, Millett RL, Millado KF, Lin J. Abiraterone is effective and should be considered for the treatment of metastatic castrate-naïve prostate cancer. Expert Opin Pharmacother 2018; 19:507-509. [PMID: 29494266 DOI: 10.1080/14656566.2018.1444028] [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] [Indexed: 10/17/2022]
Abstract
INTRODUCTION Androgen deprivation therapy (ADT) has been the standard of care for the treatment of newly diagnosed metastatic prostate cancer for the past 70 years. Furthermore, adding docetaxel chemotherapy to ADT significantly improved patient survival, and thus became the new standard for patients with high volume disease. However, recent evidence has called this treatment strategy into question since a published study has shown that the drug abiraterone has a similar benefit to docetaxel in a similar patient population group but with less toxicity. The following article considers this key paper and its implications. Areas covered: In this key paper evaluation, the authors discuss the rational, trial design and results of the LATITUDE trial. Furthermore, the past and current standard of care of metastatic castrate-naïve prostate cancer (mCNPC) is discussed, while the authors also compare abiraterone and docetaxel in terms of benefit, safety profile, and affordability. Expert opinion: Abiraterone is highly effective and has an excellent safety profile for the treatment of metastatic castrate-naïve prostate cancer. It is the authors' opinion that it should now be considered the new standard of care.
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Affiliation(s)
- Jacob M Elkon
- a Division of Hematology/Oncology, Department of Medicine , George Washington University School of Medicine and Health Sciences , Washington , DC , USA
| | - Ralph L Millett
- a Division of Hematology/Oncology, Department of Medicine , George Washington University School of Medicine and Health Sciences , Washington , DC , USA
| | - Kristin F Millado
- a Division of Hematology/Oncology, Department of Medicine , George Washington University School of Medicine and Health Sciences , Washington , DC , USA
| | - Jianqing Lin
- a Division of Hematology/Oncology, Department of Medicine , George Washington University School of Medicine and Health Sciences , Washington , DC , USA
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Yin X, Yu J, Zhou Y, Wang C, Jiao Z, Qian Z, Sun H, Chen B. Identification of CDK2 as a novel target in treatment of prostate cancer. Future Oncol 2018; 14:709-718. [PMID: 29323532 DOI: 10.2217/fon-2017-0561] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
AIM This study aims the potential gene involved in the metastasis of prostate cancer (Pca). METHODS PubMed GEO datasets (GSE6605 and GSE6606) were downloaded. We used multiple bioinformatics methods to screen differentially expressed genes in Pca. Gene network was built by STRING and visualized by Cytoscape. All of the hub genes were analyzed by cBioPortal. Inhibition of CDK2 including siRNA, inhibitor and cas9-induced CDK2 knockout was followed by an invasion assay. Downstream genes of CDK2 were analyzed by western blot. RESULTS Sequencing data were analyzed to screen the genes with expression alterations. The top genes were validated in our samples. 11 hub genes were screened out. Among these genes, STAT3 and CDK2 were significantly associated with recurrence. Further study suggested that inhibition of CDK2 reduced invasion of Pca cell lines. The invasion ability was rescued after reintroduction of CDK2. CONCLUSION These data indicated that CDK2 was a crucial factor in metastasis of Pca and might be a novel therapy target. [Formula: see text].
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Affiliation(s)
- Xifeng Yin
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jun Yu
- Department of Obstetrics & Gynecology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yang Zhou
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Chengyue Wang
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Zhimin Jiao
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Zhounan Qian
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Hao Sun
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Binghai Chen
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
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