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Al Salhi Y, Sequi MB, Valenzi FM, Fuschi A, Martoccia A, Suraci PP, Carbone A, Tema G, Lombardo R, Cicione A, Pastore AL, De Nunzio C. Cancer Stem Cells and Prostate Cancer: A Narrative Review. Int J Mol Sci 2023; 24:ijms24097746. [PMID: 37175453 PMCID: PMC10178135 DOI: 10.3390/ijms24097746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/17/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Cancer stem cells (CSCs) are a small and elusive subpopulation of self-renewing cancer cells with the remarkable ability to initiate, propagate, and spread malignant disease. In the past years, several authors have focused on the possible role of CSCs in PCa development and progression. PCa CSCs typically originate from a luminal prostate cell. Three main pathways are involved in the CSC development, including the Wnt, Sonic Hedgehog, and Notch signaling pathways. Studies have observed an important role for epithelial mesenchymal transition in this process as well as for some specific miRNA. These studies led to the development of studies targeting these specific pathways to improve the management of PCa development and progression. CSCs in prostate cancer represent an actual and promising field of research.
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Affiliation(s)
- Yazan Al Salhi
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Manfredi Bruno Sequi
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Fabio Maria Valenzi
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Andrea Fuschi
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Alessia Martoccia
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Paolo Pietro Suraci
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Antonio Carbone
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Giorgia Tema
- Urology Unit, Sant'Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
| | - Riccardo Lombardo
- Urology Unit, Sant'Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
| | - Antonio Cicione
- Urology Unit, Sant'Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
| | - Antonio Luigi Pastore
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Cosimo De Nunzio
- Urology Unit, Sant'Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
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2
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Wolf I, Gratzke C, Wolf P. Prostate Cancer Stem Cells: Clinical Aspects and Targeted Therapies. Front Oncol 2022; 12:935715. [PMID: 35875084 PMCID: PMC9304860 DOI: 10.3389/fonc.2022.935715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/13/2022] [Indexed: 11/13/2022] Open
Abstract
Despite decades of research and successful improvements in diagnosis and therapy, prostate cancer (PC) remains a major challenge. In recent years, it has become clear that PC stem cells (PCSCs) are the driving force in tumorigenesis, relapse, metastasis, and therapeutic resistance of PC. In this minireview, we discuss the impact of PCSCs in the clinical practice. Moreover, new therapeutic approaches to combat PCSCs are presented with the aim to achieve an improved outcome for patients with PC.
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Affiliation(s)
- Isis Wolf
- Department of Urology, Medical Center-University of Freiburg, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Christian Gratzke
- Department of Urology, Medical Center-University of Freiburg, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Philipp Wolf
- Department of Urology, Medical Center-University of Freiburg, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
- *Correspondence: Philipp Wolf,
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Archer LK, Frame FM, Walker HF, Droop AP, McDonald GLK, Kucko S, Berney DM, Mann VM, Simms MS, Maitland NJ. ETS transcription factor ELF3 (ESE-1) is a cell cycle regulator in benign and malignant prostate. FEBS Open Bio 2022; 12:1365-1387. [PMID: 35472129 PMCID: PMC9249341 DOI: 10.1002/2211-5463.13417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/23/2022] [Accepted: 04/25/2022] [Indexed: 11/07/2022] Open
Abstract
This study aimed to elucidate the role of ELF3, an ETS family member in normal prostate growth and prostate cancer. Silencing ELF3 in both benign prostate (BPH-1) and prostate cancer (PC3) cell lines resulted in decreased colony forming ability, inhibition of cell migration and reduced cell viability due to cell cycle arrest, establishing ELF3 as a cell cycle regulator. Increased ELF3 expression in more advanced prostate tumours was shown by immunostaining of tissue microarrays and from analysis of gene expression and genetic alteration studies. This study indicates that ELF3 functions as part of normal prostate epithelial growth but also as a potential oncogene in advanced prostate cancers.
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Affiliation(s)
- Leanne K. Archer
- Cancer Research UnitDepartment of BiologyUniversity of YorkHeslingtonUK
| | - Fiona M. Frame
- Cancer Research UnitDepartment of BiologyUniversity of YorkHeslingtonUK
| | - Hannah F. Walker
- Cancer Research UnitDepartment of BiologyUniversity of YorkHeslingtonUK
| | | | | | - Samuel Kucko
- Cancer Research UnitDepartment of BiologyUniversity of YorkHeslingtonUK
| | - Daniel M. Berney
- Department of Molecular OncologyBarts Cancer InstituteQueen Mary University of LondonUK
| | - Vincent M. Mann
- Cancer Research UnitDepartment of BiologyUniversity of YorkHeslingtonUK
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Azeem W, Olsen JR, Hellem MR, Hua Y, Marvyin K, Ke X, Øyan AM, Kalland KH. Proteasome-Mediated Regulation of GATA2 Expression and Androgen Receptor Transcription in Benign Prostate Epithelial Cells. Biomedicines 2022; 10:biomedicines10020473. [PMID: 35203681 PMCID: PMC8962351 DOI: 10.3390/biomedicines10020473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/11/2022] [Accepted: 02/16/2022] [Indexed: 02/04/2023] Open
Abstract
GATA2 has been shown to be an important transcription factor together with androgen receptor (AR) in prostate cancer cells. Less is known about GATA2 in benign prostate epithelial cells. We have investigated if GATA2 exogenous expression in prostate epithelial basal-like cells could induce AR transcription or luminal differentiation. Prostate epithelial basal-like (transit amplifying) cells were transduced with lentiviral vector expressing GATA2. Luminal differentiation markers were assessed by RT-qPCR, Western blot and global gene expression microarrays. We utilized our previously established AR and androgen-dependent fluorescence reporter assay to investigate AR activity at the single-cell level. Exogenous GATA2 protein was rapidly and proteasome-dependently degraded. GATA2 protein expression was rescued by the proteasome inhibitor MG132 and partly by mutating the target site of the E3 ligase FBXW7. Moreover, MG132-mediated proteasome inhibition induced AR mRNA and additional luminal marker gene transcription in the prostate transit amplifying cells. Different types of intrinsic mechanisms restricted GATA2 expression in the transit amplifying cells. The appearance of AR mRNA and additional luminal marker gene expression changes following proteasome inhibition suggests control of essential cofactor(s) of AR mRNA expression and luminal differentiation at this proteolytic level.
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Affiliation(s)
- Waqas Azeem
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (J.R.O.); (M.R.H.); (Y.H.); (K.M.); (X.K.); (A.M.Ø.)
- Centre for Cancer Biomarkers, University of Bergen, 5021 Bergen, Norway
- Department of Microbiology, Haukeland University Hospital, 5021 Bergen, Norway
- Correspondence: (W.A.); (K.-H.K.)
| | - Jan Roger Olsen
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (J.R.O.); (M.R.H.); (Y.H.); (K.M.); (X.K.); (A.M.Ø.)
| | - Margrete Reime Hellem
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (J.R.O.); (M.R.H.); (Y.H.); (K.M.); (X.K.); (A.M.Ø.)
| | - Yaping Hua
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (J.R.O.); (M.R.H.); (Y.H.); (K.M.); (X.K.); (A.M.Ø.)
| | - Kristo Marvyin
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (J.R.O.); (M.R.H.); (Y.H.); (K.M.); (X.K.); (A.M.Ø.)
| | - Xisong Ke
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (J.R.O.); (M.R.H.); (Y.H.); (K.M.); (X.K.); (A.M.Ø.)
| | - Anne Margrete Øyan
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (J.R.O.); (M.R.H.); (Y.H.); (K.M.); (X.K.); (A.M.Ø.)
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, 5021 Bergen, Norway
| | - Karl-Henning Kalland
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (J.R.O.); (M.R.H.); (Y.H.); (K.M.); (X.K.); (A.M.Ø.)
- Centre for Cancer Biomarkers, University of Bergen, 5021 Bergen, Norway
- Department of Microbiology, Haukeland University Hospital, 5021 Bergen, Norway
- Correspondence: (W.A.); (K.-H.K.)
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5
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Maitland NJ. Resistance to Antiandrogens in Prostate Cancer: Is It Inevitable, Intrinsic or Induced? Cancers (Basel) 2021; 13:327. [PMID: 33477370 PMCID: PMC7829888 DOI: 10.3390/cancers13020327] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 12/20/2022] Open
Abstract
Increasingly sophisticated therapies for chemical castration dominate first-line treatments for locally advanced prostate cancer. However, androgen deprivation therapy (ADT) offers little prospect of a cure, as resistant tumors emerge rather rapidly, normally within 30 months. Cells have multiple mechanisms of resistance to even the most sophisticated drug regimes, and both tumor cell heterogeneity in prostate cancer and the multiple salvage pathways result in castration-resistant disease related genetically to the original hormone-naive cancer. The timing and mechanisms of cell death after ADT for prostate cancer are not well understood, and off-target effects after long-term ADT due to functional extra-prostatic expression of the androgen receptor protein are now increasingly being recorded. Our knowledge of how these widely used treatments fail at a biological level in patients is deficient. In this review, I will discuss whether there are pre-existing drug-resistant cells in a tumor mass, or whether resistance is induced/selected by the ADT. Equally, what is the cell of origin of this resistance, and does it differ from the treatment-naïve tumor cells by differentiation or dedifferentiation? Conflicting evidence also emerges from studies in the range of biological systems and species employed to answer this key question. It is only by improving our understanding of this aspect of treatment and not simply devising another new means of androgen inhibition that we can improve patient outcomes.
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Affiliation(s)
- Norman J Maitland
- Department of Biology, University of York, Heslington, York YO10 5DD, UK
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6
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STAT3 inhibition with galiellalactone effectively targets the prostate cancer stem-like cell population. Sci Rep 2020; 10:13958. [PMID: 32811873 PMCID: PMC7434889 DOI: 10.1038/s41598-020-70948-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022] Open
Abstract
Cancer stem cells (CSCs) are a small subpopulation of quiescent cells with the potential to differentiate into tumor cells. CSCs are involved in tumor initiation and progression and contribute to treatment failure through their intrinsic resistance to chemo- or radiotherapy, thus representing a substantial concern for cancer treatment. Prostate CSCs’ activity has been shown to be regulated by the transcription factor Signal Transducer and Activator of Transcription 3 (STAT3). Here we investigated the effect of galiellalactone (GL), a direct STAT3 inhibitor, on CSCs derived from prostate cancer patients, on docetaxel-resistant spheres with stem cell characteristics, on CSCs obtained from the DU145 cell line in vitro and on DU145 tumors in vivo. We found that GL significantly reduced the viability of docetaxel-resistant and patient-derived spheres. Moreover, CSCs isolated from DU145 cells were sensitive to low concentrations of GL, and the treatment with GL suppressed their viability and their ability to form colonies and spheres. STAT3 inhibition down regulated transcriptional targets of STAT3 in these cells, indicating STAT3 activity in CSCs. Our results indicate that GL can target the prostate stem cell niche in patient-derived cells, in docetaxel-resistant spheres and in an in vitro model. We conclude that GL represents a promising therapeutic approach for prostate cancer patients, as it reduces the viability of prostate cancer-therapy-resistant cells in both CSCs and non-CSC populations.
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Mulholland EJ, Green WP, Buckley NE, McCarthy HO. Exploring the Potential of MicroRNA Let-7c as a Therapeutic for Prostate Cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:927-937. [PMID: 31760377 PMCID: PMC6883330 DOI: 10.1016/j.omtn.2019.09.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 09/02/2019] [Accepted: 09/08/2019] [Indexed: 01/20/2023]
Abstract
Prostate cancer (PCa) is one of the leading causes of mortality worldwide and often presents with aberrant microRNA (miRNA) expression. Identifying and understanding the unique expression profiles could aid in the detection and treatment of this disease. This review aims to identify miRNAs as potential therapeutic targets for PCa. Three bio-informatic searches were conducted to identify miRNAs that are reportedly implicated in the pathogenesis of PCa. Only hsa-Lethal-7 (let-7c), recognized for its role in PCa pathogenesis, was common to all three databases. Three further database searches were conducted to identify known targets of hsa-let-7c. Four targets were identified, HMGA2, c-Myc (MYC), TRAIL, and CASP3. An extensive review of the literature was undertaken to assess the role of hsa-let-7c in the progression of other malignancies and to evaluate its potential as a therapeutic target for PCa. The heterogeneous nature of cancer makes it logical to develop mechanisms by which the treatment of malignancies is tailored to an individual, harnessing specific knowledge of the underlying biology of the disease. Resetting cellular miRNA levels is an exciting prospect that will allow this ambition to be realized.
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Affiliation(s)
- Eoghan J Mulholland
- Gastrointestinal Stem Cell Biology Laboratory, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - William P Green
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland
| | - Niamh E Buckley
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland.
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8
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Knuuttila M, Hämäläinen E, Poutanen M. Applying mass spectrometric methods to study androgen biosynthesis and metabolism in prostate cancer. J Mol Endocrinol 2019; 62:R255-R267. [PMID: 30917337 DOI: 10.1530/jme-18-0150] [Citation(s) in RCA: 5] [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: 01/28/2019] [Accepted: 02/04/2019] [Indexed: 12/27/2022]
Abstract
Recent development of gas chromatography and liquid chromatography-tandem mass spectrometry (GC-MS/MS, LC-MS/MS) has provided novel tools to define sex steroid concentrations. These new methods overcome several of the problems associated with immunoassays for sex steroids. With the novel MS-based applications we are now able to measure small concentrations of the steroid hormones reliably and with high accuracy in both body fluids and tissue homogenates. The sensitivity of the tandem mass spectrometry assays allows us also for the first time to reliably measure picomolar or even femtomolar concentrations of estrogens and androgens. Furthermore, due to a high sensitivity and specificity of MS technology, we are also able to measure low concentrations of steroid hormones of interest in the presence of pharmacological concentration of other steroids and structurally closely related compounds. Both of these features are essential for multiple preclinical models for prostate cancer. The MS assays are also valuable for the simultaneous measurement of multiple steroids and their metabolites in small sample volumes in serum and tissue biopsies of prostate cancer patients before and after drug interventions. As a result, novel information about steroid hormone synthesis and metabolic pathways in prostate cancer has been obtained. In our recent studies, we have extensively applied a GC-MS/MS method to study androgen biosynthesis and metabolism in VCaP prostate cancer xenografts in mice. In the present review, we shortly summarize some of the benefits of the GC-MS/MS and novel LC-MS/MS assays, and provide examples of their use in defining novel mechanisms of androgen action in prostate cancer.
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Affiliation(s)
- Matias Knuuttila
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, and Turku Center for Disease Modeling, University of Turku, Turku, Finland
| | - Esa Hämäläinen
- Department of Clinical Chemistry and HUSLAB, Helsinki University and Helsinki University Hospital, HUSLAB, Helsinki, Finland
| | - Matti Poutanen
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, and Turku Center for Disease Modeling, University of Turku, Turku, Finland
- Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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9
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Luk IY, Reehorst CM, Mariadason JM. ELF3, ELF5, EHF and SPDEF Transcription Factors in Tissue Homeostasis and Cancer. Molecules 2018; 23:molecules23092191. [PMID: 30200227 PMCID: PMC6225137 DOI: 10.3390/molecules23092191] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 08/23/2018] [Accepted: 08/23/2018] [Indexed: 02/07/2023] Open
Abstract
The epithelium-specific ETS (ESE) transcription factors (ELF3, ELF5, EHF and SPDEF) are defined by their highly conserved ETS DNA binding domain and predominant epithelial-specific expression profile. ESE transcription factors maintain normal cell homeostasis and differentiation of a number of epithelial tissues, and their genetic alteration and deregulated expression has been linked to the progression of several epithelial cancers. Herein we review the normal function of the ESE transcription factors, the mechanisms by which they are dysregulated in cancers, and the current evidence for their role in cancer progression. Finally, we discuss potential therapeutic strategies for targeting or reactivating these factors as a novel means of cancer treatment.
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Affiliation(s)
- Ian Y Luk
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria 3084, Australia.
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria 3086, Australia.
| | - Camilla M Reehorst
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria 3084, Australia.
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria 3086, Australia.
| | - John M Mariadason
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria 3084, Australia.
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria 3086, Australia.
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10
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Prostate-Derived Ets Factor (PDEF) Inhibits Metastasis by Inducing Epithelial/Luminal Phenotype in Prostate Cancer Cells. Mol Cancer Res 2018; 16:1430-1440. [DOI: 10.1158/1541-7786.mcr-18-0010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/15/2018] [Accepted: 05/15/2018] [Indexed: 11/16/2022]
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11
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Cánovas V, Puñal Y, Maggio V, Redondo E, Marín M, Mellado B, Olivan M, Lleonart M, Planas J, Morote J, Paciucci R. Prostate Tumor Overexpressed-1 (PTOV1) promotes docetaxel-resistance and survival of castration resistant prostate cancer cells. Oncotarget 2017; 8:59165-59180. [PMID: 28938627 PMCID: PMC5601723 DOI: 10.18632/oncotarget.19467] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 06/19/2017] [Indexed: 12/28/2022] Open
Abstract
Metastatic prostate cancer is presently incurable. The oncogenic protein PTOV1, first described in prostate cancer, was reported as overexpressed and significantly correlated with poor survival in numerous tumors. Here, we investigated the role of PTOV1 in prostate cancer survival to docetaxel and self-renewal ability. Transduction of PTOV1 in docetaxel-sensitive Du145 and PC3 cells significantly increased cell survival after docetaxel exposure and induced docetaxel-resistance genes expression (ABCB1, CCNG2 and TUBB2B). In addition, PTOV1 induced prostatospheres formation and self-renewal genes expression (ALDH1A1, LIN28A, MYC and NANOG). In contrast, Du145 and PC3 cells knockdown for PTOV1 significantly accumulated in the G2/M phase, presented a concomitant increased subG1 peak, and cell death by apoptosis. These effects were enhanced in docetaxel-resistant cells. Analyses of tumor datasets show that PTOV1 expression significantly correlated with prostate tumor grade, drug resistance (CCNG2) and self-renewal (ALDH1A1, MYC) markers. These genes are concurrently overexpressed in most metastatic lesions. Metastases also show PTOV1 genomic amplification in significant co-occurrence with docetaxel-resistance and self-renewal genes. Our findings identify PTOV1 as a promoter of docetaxel-resistance and self-renewal characteristics for castration resistant prostate cancer. The concomitant increased expression of PTOV1, ALDH1A1 and CCNG2 in primary tumors, may predict metastasis and bad prognosis.
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Affiliation(s)
- Verónica Cánovas
- Biomedical Research Group of Urology, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Yolanda Puñal
- Biomedical Research Group of Urology, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Valentina Maggio
- Biomedical Research Group of Urology, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Enric Redondo
- Biomedical Research Group of Urology, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Mercedes Marín
- Laboratory of Translational Genomics and Targeted Therapeutics in Solid Tumors, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Medical Oncoloy Department, Hospital Clinic, Barcelona, Spain
| | - Begoña Mellado
- Laboratory of Translational Genomics and Targeted Therapeutics in Solid Tumors, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Medical Oncoloy Department, Hospital Clinic, Barcelona, Spain
| | - Mireia Olivan
- Biomedical Research Group of Urology, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Matilde Lleonart
- Biomedical Research in Cancer Stem Cells, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jacques Planas
- Biomedical Research Group of Urology, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain.,Deparment of Urology, Vall d'Hebron Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Juan Morote
- Biomedical Research Group of Urology, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain.,Deparment of Urology, Vall d'Hebron Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Rosanna Paciucci
- Biomedical Research Group of Urology, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
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