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Kaushal JB, Takkar S, Batra SK, Siddiqui JA. Diverse landscape of genetically engineered mouse models: Genomic and molecular insights into prostate cancer. Cancer Lett 2024; 593:216954. [PMID: 38735382 DOI: 10.1016/j.canlet.2024.216954] [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: 12/20/2023] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 05/14/2024]
Abstract
Prostate cancer (PCa) is a significant health concern for men worldwide and is particularly prevalent in the United States. It is a complex disease presenting different molecular subtypes and varying degrees of aggressiveness. Transgenic/genetically engineered mouse models (GEMMs) greatly enhanced our understanding of the intricate molecular processes that underlie PCa progression and have offered valuable insights into potential therapeutic targets for this disease. The integration of whole-exome and whole-genome sequencing, along with expression profiling, has played a pivotal role in advancing GEMMs by facilitating the identification of genetic alterations driving PCa development. This review focuses on genetically modified mice classified into the first and second generations of PCa models. We summarize whether models created by manipulating the function of specific genes replicate the consequences of genomic alterations observed in human PCa, including early and later disease stages. We discuss cases where GEMMs did not fully exhibit the expected human PCa phenotypes and possible causes of the failure. Here, we summarize the comprehensive understanding, recent advances, strengths and limitations of the GEMMs in advancing our insights into PCa, offering genetic and molecular perspectives for developing novel GEMM models.
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Affiliation(s)
- Jyoti B Kaushal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA
| | - Simran Takkar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE-68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE-68198, USA.
| | - Jawed A Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE-68198, USA.
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Pedrani M, Salfi G, Merler S, Testi I, Cani M, Turco F, Trevisi E, Tortola L, Treglia G, Di Tanna GL, Vogl U, Gillessen S, Theurillat JP, Pereira Mestre R. Prognostic and Predictive Role of SPOP Mutations in Prostate Cancer: A Systematic Review and Meta-analysis. Eur Urol Oncol 2024:S2588-9311(24)00103-2. [PMID: 38704358 DOI: 10.1016/j.euo.2024.04.011] [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: 02/26/2024] [Revised: 03/21/2024] [Accepted: 04/09/2024] [Indexed: 05/06/2024]
Abstract
CONTEXT Mutations in the speckle-type POZ (SPOP) gene are frequently identified in prostate cancer (PC); yet, prognostic implications for affected patients remain unclear. Limited consensus exists regarding tailored treatments for SPOP-mutant (SPOPmut) PC. OBJECTIVE To elucidate the prognostic and predictive significance of SPOP mutations across distinct PC stages and treatments. EVIDENCE ACQUISITION A systematic literature search of PubMed, Embase, and Scopus was conducted up to January 29, 2024. The meta-analysis included studies comparing survival outcomes between SPOPmut and SPOP wild-type (SPOPwt) PC. EVIDENCE SYNTHESIS From 669 records, 26 studies (including five abstracts) were analyzed. A meta-analysis of metastasis-free survival in localized (hazard ratio [HR]: 0.72, 95% confidence interval [CI]: 0.59-0.88; p < 0.01) and overall survival (OS) in metastatic PC (HR: 0.64, 95% CI: 0.53-0.76; p < 0.01) showed a favorable prognosis for patients with SPOPmut PC. In metastatic settings, SPOP mutations correlated with improved progression-free survival (PFS) and OS in patients undergoing androgen deprivation therapy ± androgen receptor signaling inhibitor (HR: 0.51, 95% CI: 0.35-0.76, p < 0.01, and HR: 0.60, 95% CI:0.46-0.79, p < 0.01, respectively). In metastatic castration-resistant PC, only abiraterone provided improved PFS and OS to patients with SPOP mutations compared with patients with SPOPwt, but data were limited. SPOP mutations did not correlate with improved PFS (p = 0.80) or OS (p = 0.27) for docetaxel. CONCLUSIONS Patients with SPOPmut PC seem to exhibit superior oncological outcomes compared with patients with SPOPwt. Tailored risk stratification and treatment approaches should be explored in such patients. PATIENT SUMMARY Speckle-type POZ (SPOP) mutations could be a favorable prognostic factor in patients with prostate cancer (PC) and may also predict better progression-free and overall survival than treatment with hormonal agents. Therefore, less intensified treatments omitting chemotherapy for patients with SPOP-mutant PC should be explored in clinical trials.
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Affiliation(s)
- Martino Pedrani
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland; Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
| | - Giuseppe Salfi
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland; Institute of Oncology Research (IOR), Bellinzona, Switzerland
| | - Sara Merler
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland; Institute of Oncology Research (IOR), Bellinzona, Switzerland; Section of Innovation Biomedicine - Oncology Area, Department of Engineering for Innovation Medicine, University of Verona and Verona University Hospital Trust, Verona, Italy; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Irene Testi
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland; Medical Oncology Unit, University Hospital of Parma, Parma, Italy
| | - Massimiliano Cani
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland; Oncology Unit, Department of Oncology, University of Turin, S. Luigi Gonzaga Hospital, Orbassano, Italy
| | - Fabio Turco
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland
| | - Elena Trevisi
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland
| | - Luigi Tortola
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland
| | - Giorgio Treglia
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland; Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland; Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Gian Luca Di Tanna
- Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Manno, Switzerland
| | - Ursula Vogl
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland
| | - Silke Gillessen
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Jean-Philippe Theurillat
- Institute of Oncology Research (IOR), Bellinzona, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Ricardo Pereira Mestre
- Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland; Institute of Oncology Research (IOR), Bellinzona, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland; Clinical Research Unit, myDoctorAngel Sagl, Bioggio, Switzerland.
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3
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Gan S, Qu F, Zhang X, Pan X, Xu D, Cui X, Hou J. LRP5 competes for SPOP binding to enhance tumorigenesis mediated by Daxx and PD-L1 in prostate cancer. Exp Cell Res 2024; 434:113857. [PMID: 38008278 DOI: 10.1016/j.yexcr.2023.113857] [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: 08/28/2023] [Revised: 11/11/2023] [Accepted: 11/16/2023] [Indexed: 11/28/2023]
Abstract
Genetic factors coordinate with environmental factors to drive the pathogenesis of prostate adenocarcinoma (PRAD). SPOP is one of the most mutated genes and LRP5 mediates lipid metabolism that is abnormally altered in PRAD. Here, we investigated the potential cross-talk between SPOP and LRP5 in PRAD. We find a negative correlation between SPOP and LRP5 proteins in PRAD. SPOP knockdown increased LRP5 protein while SPOP overexpression resulted in LRP5 reduction that was fully rescued by proteasome inhibitors. LRP5 intracellular tail has SPOP binding site and the direct interaction between LRP5 and SPOP was confirmed by Co-IP and GST-pulldown. Moreover, LRP5 competed with Daxx for SPOP-mediated degradation, establishing a dynamic balance among SPOP, LRP5 and Daxx. Overexpression of LRP5 tail could shift this balance to enhance Daxx-mediated transcriptional inhibition, and inhibit T cell activity in a co-culture system. Further, we generated human and mouse prostate cancer cell lines expressing SPOP variants (F133V, A227V, R368H). SPOP-F133V and SPOP-A227V have specific effects in up-regulating the protein levels of PD-1 and PD-L1. Consistently, SPOP-F133V and SPOP-A227V show robust inhibitory effects on T cells compared to WT SPOP in co-culture. This is further supported by the mouse syngeneic model showing that SPOP-F133V and SPOP-A227V enhance tumorigenesis of prostate cancer in in-vivo condition. Taken together, our study provides evidence that SPOP-LRP5 crosstalk plays an essential role, and the genetic variants of SPOP differentially modulate the expression and activity of immune checkpoints in prostate cancer.
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Affiliation(s)
- Sishun Gan
- Suzhou Dushu Lake Hospital (Dushu Lake Hospital Affiliated to Soochow University), Medical Center of Soochow University, PR China; Department of Urology, The Third Affiliated Hospital, Naval Medical University (Second Military Medical University), Shanghai, PR China
| | - Fajun Qu
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, No.1665 Kongjiang Road, Shanghai, 200092, PR China
| | - Xiangmin Zhang
- Department of Urology, Shanghai Baoshan Luodian Hospital, Baoshan District, Shanghai, 201908, PR China
| | - Xiuwu Pan
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, No.1665 Kongjiang Road, Shanghai, 200092, PR China
| | - Da Xu
- Department of Urology, The Third Affiliated Hospital, Naval Medical University (Second Military Medical University), Shanghai, PR China
| | - Xingang Cui
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, No.1665 Kongjiang Road, Shanghai, 200092, PR China.
| | - Jianquan Hou
- Suzhou Dushu Lake Hospital (Dushu Lake Hospital Affiliated to Soochow University), Medical Center of Soochow University, PR China.
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Cussenot O, Cancel-Tassin G, Rao SR, Woodcock DJ, Lamb AD, Mills IG, Hamdy FC. Aligning germline and somatic mutations in prostate cancer. Are genetics changing practice? BJU Int 2023; 132:472-484. [PMID: 37410655 DOI: 10.1111/bju.16120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
OBJECTIVE To review the current status of germline and somatic (tumour) genetic testing for prostate cancer (PCa), and its relevance for clinical practice. METHODS A narrative synthesis of various molecular profiles related to their clinical context was carried out. Current guidelines for genetic testing and its feasibility in clinical practice were analysed. We report the main identified genetic sequencing results or functional genomic scores for PCa published in the literature or obtained from the French PROGENE study. RESULTS The molecular alterations observed in PCa are mostly linked to disruption of the androgen receptor (AR) pathway or DNA repair deficiency. The main known germline mutations affect the BReast CAncer gene 2 (BRCA2) and homeobox B13 (HOXB13) genes, whereas AR and tumour protein p53 (TP53) are the genes with most frequent somatic alterations in tumours from men with metastatic PCa. Molecular tests are now available for detecting some of these germline or somatic alterations and sometimes recommended by guidelines, but their utilisation must combine rationality and feasibility. They can guide specific therapies, notably for the management of metastatic disease. Indeed, following androgen deprivation, targeted therapies for PCa currently include poly-(ADP-ribose)-polymerase (PARP) inhibitors, immune checkpoint inhibitors, and prostate-specific membrane antigen (PSMA)-guided radiotherapy. The genetic tests currently approved for targeted therapies remain limited to the detection of BRCA1 and BRCA2 mutation and DNA mismatch repair deficiency, while large panels are recommended for germline analyses, not only for inherited cancer predisposing syndrome, but also for metastatic PCa. CONCLUSIONS Further consensus aligning germline with somatic molecular analysis in metastatic PCa is required, including genomics scars, emergent immunohistochemistry, or functional pre-screen imaging. With rapid advances in knowledge and technology in the field, continuous updating of guidelines to help the clinical management of these individuals, and well-conducted studies to evaluate the benefits of genetic testing are needed.
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Affiliation(s)
- Olivier Cussenot
- Centre de Recherche sur les Pathologies Prostatiques et Urologiques (CeRePP), Paris, France
- GRC 5 Predictive Onco-Urology, Sorbonne University, Paris, France
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Geraldine Cancel-Tassin
- Centre de Recherche sur les Pathologies Prostatiques et Urologiques (CeRePP), Paris, France
- GRC 5 Predictive Onco-Urology, Sorbonne University, Paris, France
| | - Srinivasa R Rao
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Dan J Woodcock
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Alastair D Lamb
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Ian G Mills
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Freddie C Hamdy
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
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Sanada S, Maekawa M, Tate S, Nakaoka H, Fujisawa Y, Sayama K, Higashiyama S. SPOP is essential for DNA replication licensing through maintaining translation of CDT1 and CDC6 in HaCaT cells. Biochem Biophys Res Commun 2023; 651:30-38. [PMID: 36791496 DOI: 10.1016/j.bbrc.2023.02.012] [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: 01/20/2023] [Accepted: 02/03/2023] [Indexed: 02/05/2023]
Abstract
Speckle-type pox virus and zinc finger (POZ) protein (SPOP), a substrate recognition receptor for the cullin-3/RING ubiquitin E3 complex, leads to the ubiquitination of >40 of its target substrates. Since a variety of point mutations in the substrate-binding domain of SPOP have been identified in cancers, including prostate and endometrial cancers, the pathological roles of those cancer-associated SPOP mutants have been extensively elucidated. In this study, we evaluated the cellular functions of wild-type SPOP in non-cancerous human keratinocyte-derived HaCaT cells expressing wild-type SPOP gene. SPOP knockdown using siRNA in HaCaT cells dramatically reduced cell growth and arrested their cell cycles at G1/S phase. The expression of DNA replication licensing factors CDT1 and CDC6 in HaCaT cells drastically decreased on SPOP knockdown as their translation was inhibited. CDT1 and CDC6 downregulation induced p21 expression without p53 activation. Our results suggest that SPOP is essential for DNA replication licensing in non-cancerous keratinocyte HaCaT cells.
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Affiliation(s)
- Sayoko Sanada
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan.
| | - Sota Tate
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan
| | - Hiroki Nakaoka
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Yasuhiro Fujisawa
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Koji Sayama
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan; Department of Oncogenesis and Tumor Regulation, Osaka International Cancer Institute, Chuo-ku, Osaka, 541-8567, Japan.
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Gillessen S, Procopio G, Hayoz S, Kremer E, Schwitter M, Caffo O, Lorente D, Pedrazzini A, Roubaud G, Nenan S, Omlin A, Buttigliero C, Delgado Mingorance JI, González-Del-Alba A, Delgado MT, Nole F, Turco F, Pereira Mestre R, Ribi K, Cathomas R. Darolutamide Maintenance in Patients With Metastatic Castration-Resistant Prostate Cancer With Nonprogressive Disease After Taxane Treatment (SAKK 08/16). J Clin Oncol 2023:JCO2201726. [PMID: 36753698 DOI: 10.1200/jco.22.01726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
PURPOSE To assess the efficacy and safety of darolutamide maintenance after successful taxane chemotherapy in patients with metastatic castration-resistant prostate cancer (mCRPC). PATIENTS AND METHODS Swiss Group for Clinical Cancer Research (SAKK) 08/16 is a randomized phase II study. Patients with mCRPC who received prior androgen-receptor pathway inhibitors (ARPIs) and subsequently had nonprogressive disease on a taxane were randomly assigned to darolutamide 600 mg twice a day or placebo twice a day. The primary end point was radiographic progression-free survival (rPFS) at 12 weeks. Secondary end points were rPFS, event-free survival, overall survival (OS), prostate-specific antigen (PSA) 50% response rate, and adverse events. RESULTS Overall, 92 patients were recruited by 26 centers. Prior taxane was docetaxel in 93% and cabazitaxel in 7%. Prior ARPI was abiraterone in 60%, enzalutamide in 31%, and both in 9%. rPFS at 12 weeks was significantly improved with darolutamide (64.7% v 52.2%; P = .127). Median rPFS on darolutamide was 5.5 versus 4.5 months on placebo (hazard ratio [HR], 0.54; 95% CI, 0.32 to 0.91; P = .017), and median event-free survival was 5.4 versus 2.9 months (HR, 0.46; 95% CI, 0.29 to 0.73; P = .001). PSA 50% response rate was improved (22% v 4%; P = .014). Median OS for darolutamide was 24 versus 21.3 months for placebo (HR, 0.62; 95% CI, 0.3 to 1.26; P = .181). Treatment-related adverse events were similar in both arms. CONCLUSION SAKK 08/16 met its primary end point, showing that switch maintenance with darolutamide after prior taxane chemotherapy and at least one ARPI resulted in a statistically significant but clinically modest rPFS prolongation with good tolerability. The median OS with darolutamide maintenance appears promising. Should these findings be confirmed in a larger trial, maintenance treatment could be a novel strategy in managing patients with mCRPC, especially those who responded well to prior ARPI.
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Affiliation(s)
- Silke Gillessen
- EOC-Istituto Oncologico della Svizzera Italiana, Bellinzona, Switzerland.,Faculty of Biomedical Sciences, USI, Lugano, Switzerland
| | | | | | | | - Michael Schwitter
- Division of Oncology/Hematology, Kantonsspital Graubünden, Chur, Switzerland
| | - Orazio Caffo
- Presidio Ospedaliero Santa Chiara, Trento, Italy
| | - David Lorente
- Consorci Hospitalari Provincial de Castellón, Castellón de la Plana, Spain
| | | | | | - Soazig Nenan
- Unicancer, Département de la recherche et développement, Groupe d'étude des tumeurs urogénitales (GETUG), Paris, France
| | - Aurelius Omlin
- Department of Hematology and Oncology, Kantonsspital St Gallen, St Gallen, Switzerland.,Onkozentrum Zürich Seefeld, Zürich, Switzerland
| | - Consuelo Buttigliero
- Department of Oncology, University of Torino, S. Luigi Hospital, Orbassano (Torino), Italy
| | | | | | | | - Franco Nole
- Istituto Europeo di Oncologia (IEO), Milano, Italy
| | - Fabio Turco
- EOC-Istituto Oncologico della Svizzera Italiana, Bellinzona, Switzerland.,Department of Oncology, University of Torino, S. Luigi Hospital, Orbassano (Torino), Italy
| | | | - Karin Ribi
- Competence Center of SAKK, Bern, Switzerland.,IBCSG Coordinating Office, Bern, Switzerland
| | - Richard Cathomas
- Division of Oncology/Hematology, Kantonsspital Graubünden, Chur, Switzerland
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Montero-Ovalle W, Sanabria-Salas MC, Mesa-López de Mesa J, Varela-Ramírez R, Segura-Moreno YY, Sánchez-Villalobos SA, Nuñez-Lemus M, Serrano ML. Determination of TMPRSS2-ERG, SPOP, FOXA1, and IDH1 prostate cancer molecular subtypes in Colombian patients and their possible implications for prognosis. Cell Biol Int 2023; 47:1017-1030. [PMID: 36740223 DOI: 10.1002/cbin.12000] [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: 08/17/2022] [Revised: 11/30/2022] [Accepted: 01/21/2023] [Indexed: 02/07/2023]
Abstract
Prostate cancer (PCa) is one of cancer with of the highest incidence and mortality worldwide. Current disease prognostic markers do not differentiate aggressive from indolent PCa with sufficient certainty, and characterization by molecular subtypes has been sought to allow a better classification. TMPRSS2-ERG, SPOP, FOXA1, and IDH1 molecular subtypes have been described, but the association of these subtypes with prognosis in PCa is unclear; their frequency in Colombian patients is also unknown. Formalin-fixed and paraffin-embedded samples of radical prostatectomy from 112 patients with PCa were used. The TMPRSS2-ERG subtype was assessed with fluorescent in situ hybridization. The mutations in SPOP, FOXA1, and IDH1 in hot-spot regions were evaluated using Sanger sequencing. Fusion was detected in 71 patients (63.4%). No statistically significant differences were found between the state of fusion and the variables analyzed. In the 41 fusion-negative cases (36.6%), two patients (4.9%) had missense mutations in SPOP (p.F102C and p.F133L), representing a 1.8% of the overall cohort. The low frequency of this subtype in Colombians could be explained by the reported variability in the frequency of these mutations according to the population (5%-20%). No mutations were found in FOXA1 in the cases analyzed. The synonym SNP rs11554137 IDH1105GGT was found in tumor tissue but not in the normal tissue in one case. A larger cohort of Colombian PCa patients is needed for future studies to validate these findings and gain a better understanding of the molecular profile of this cancer in our population and if there are any differences by Colombian regions.
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Affiliation(s)
- Wendy Montero-Ovalle
- Cancer Biology Research Group, Instituto Nacional de Cancerología, Bogotá, Colombia.,Department of Chemistry, Faculty of Sciences, Universidad Nacional de Colombia, Bogotá, Colombia
| | | | | | - Rodolfo Varela-Ramírez
- Department of Oncological Urology, Instituto Nacional de Cancerología, Bogotá, Colombia.,Department of Surgery, Faculty of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
| | | | | | - Marcela Nuñez-Lemus
- Research Support and Monitoring Group, Instituto Nacional de Cancerología, Bogotá, Colombia
| | - Martha L Serrano
- Cancer Biology Research Group, Instituto Nacional de Cancerología, Bogotá, Colombia.,Department of Chemistry, Faculty of Sciences, Universidad Nacional de Colombia, Bogotá, Colombia
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8
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Exploring prostate cancer in the post-genomic era. Cancer Lett 2023; 553:215992. [PMID: 36397638 DOI: 10.1016/j.canlet.2022.215992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 10/27/2022] [Indexed: 11/22/2022]
Abstract
In the Special Issue on Prostate Cancer, we have invited 25 researchers or clinicians from prostate cancer community to review the cutting-edge topics in this field. In particular, the mini-reviews have covered various basic science and clinical aspects in prostate cancer, including prostate epithelial stem cells or progenitors, androgen and androgen receptor pathways, tumor modeling, genomics, different cell-autonomous and non-cell-autonomous mechanisms as well as various clinical issues encompassing diagnosis, risk stratification and treatments.
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9
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Quan Y, Zhang X, Wang M, Ping H. Histone lysine methylation patterns in prostate cancer microenvironment infiltration: Integrated bioinformatic analysis and histological validation. Front Oncol 2022; 12:981226. [PMID: 36237332 PMCID: PMC9552767 DOI: 10.3389/fonc.2022.981226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
Background Epigenetic reprogramming through dysregulated histone lysine methylation (HLM) plays a crucial role in prostate cancer (PCa) progression. This study aimed to comprehensively evaluate HLM modification patterns in PCa microenvironment infiltration. Materials and methods Ninety-one HLM regulators in The Cancer Genome Atlas (TCGA) dataset were analyzed using bioinformatics. Differentially expressed genes (DEGs) and survival analyses were performed using TCGA-PRAD clinicopathologic and follow-up information. Consensus clustering analysis divided patients into subgroups. Gene ontology (GO) function and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed on the DEGs. Tumor mutation burden (TMB) and tumor microenvironment (TME) cell infiltration were evaluated in different HLM clusters. Quantitative real-time PCR (qPCR) analysis assessed HLM regulators in clinical PCa tissues. Results The tumor vs. normal (TN), Gleason score (GS) > 7 vs. GS < 7, pathological T stage (pT) = 2 vs. pT = 3, and TP53 mutation vs. wild-type comparisons using TCGA-PRAD dataset revealed 3 intersecting HLM regulators (EZH2, NSD2, and KMT5C) that were consistently upregulated in advanced PCa (GS > 7, pT3, HR > 1, and TP53 mutation) (P < 0.05) and verified in clinical PCa tissues. Consensus clustering analysis revealed three distinct HLM modification patterns (HLMclusters). However, no significant differences in recurrence-free survival (RFS) rates were found among the groups (P > 0.05). We screened 189 HLM phenotype-related genes that overlapped in the pairwise comparisons of HLMclusters and P < 0.01 in the Cox regression analysis. Three distinct subgroups (geneClusters) were revealed based on the 189 genes, in which cluster A involved the most advanced PCa (PSA > 10, T3-4, GS8-10, and biochemical recurrence) and the poorest RFS. The HLM score (HLMscore) was calculated by principal component analysis (PCA) of HLM phenotype-related genes that have positive predictive value for RFS (P < 0.001) and immune therapy responses (in the CTLA4-positive and -negative responses accompanied by a PD1-negative response). Conclusion We comprehensively evaluated HLM regulators in the PCa microenvironment using TCGA-PRAD, revealing a nonnegligible role of HLM patterns in PCa complexity and heterogeneity. Elucidating the effects of HLM regulators in PCa may enhance prognostics, aggressiveness assessments, and immunotherapy strategies.
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Affiliation(s)
- Yongjun Quan
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Xiaodong Zhang
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Mingdong Wang
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Hao Ping
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University & Capital Medical University, Beijing Tongren Hospital, Beijing, China
- *Correspondence: Hao Ping,
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Zhou J, Lai Y, Peng S, Tang C, Chen Y, Li L, Huang H, Guo Z. Comprehensive analysis of TP53 and SPOP mutations and their impact on survival in metastatic prostate cancer. Front Oncol 2022; 12:957404. [PMID: 36119488 PMCID: PMC9471084 DOI: 10.3389/fonc.2022.957404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/11/2022] [Indexed: 12/13/2022] Open
Abstract
BackgroundAlthough TP53 and SPOP are frequently mutated in metastatic prostate cancer (PCa), their prognostic value is ambiguous, and large sample studies are lacking, especially when they co-occur with other genetic alterations.MethodsGenomic data and patients’ clinical characteristics in PCa were downloaded from the cBioPortal database. We extensively analyzed other gene alterations in different mutation status of TP53 and SPOP. We further subdivided TP53 and SPOP mutation into subgroups based on different mutation status, and then evaluated the prognostic value. Two classification systems for TP53 survival analysis were used.ResultsA total of 2,172 patients with PCa were analyzed in our study, of which 1,799 were metastatic PCa patients. The mutual exclusivity analysis showed that TP53 and SPOP mutation has a strong mutual exclusion (p<0.001). In multivariable analysis, truncating TP53 mutations (HR=1.773, 95%CI:1.403-2.239, p<0.001) and other TP53 mutations(HR=1.555, 95%CI:1.267-1.908, p<0.001) were independent negative prognostic markers in metastatic PCa, whereas SPOP mutations(HR=0.592, 95%CI:0.427-0.819, p<0.001) were an independent prognostic factor for better prognosis. Mutations in TP53 were significantly associated with wild-type status for SPOP and CDK12, structural variants/fusions for TMPRSS2 and ERG, AR amplification and PTEN deletion (p<0.001). And truncating TP53 mutations have higher AR amplification rates than other TP53 mutations (p=0.022). Consistently, truncating TP53 mutations had a worse prognosis than other TP53 mutations (p<0.05). Then Kaplan-Meier survival curve showed that Co-occurring TP53 mutations in AR amplification or PTEN deletion tumors significantly reduced survival (p<0.05). Furthermore, those with SPOP-mutant tumors with co-occurring TP53 truncating mutations had shorter overall survival than those with SPOP-mutant tumors with wild-type or other TP53 mutations.ConclusionsThis study found that TP53 and SPOP mutations were mutually exclusive and both were independent prognostic markers for metastatic PCa. Genomic alteration and survival analysis revealed that TP53 and SPOP mutations represented distinct molecular subtypes. Our data suggest that molecular stratification on the basis of TP53 and SPOP mutation status should be implemented for metastatic PCa to optimize and modify clinical decision-making.
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Affiliation(s)
- Jie Zhou
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yiming Lai
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shengmeng Peng
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chen Tang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yongming Chen
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Lingfeng Li
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hai Huang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- *Correspondence: Zhenghui Guo, ; Hai Huang,
| | - Zhenghui Guo
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- *Correspondence: Zhenghui Guo, ; Hai Huang,
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Nevedomskaya E, Haendler B. From Omics to Multi-Omics Approaches for In-Depth Analysis of the Molecular Mechanisms of Prostate Cancer. Int J Mol Sci 2022; 23:6281. [PMID: 35682963 PMCID: PMC9181488 DOI: 10.3390/ijms23116281] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/24/2022] [Accepted: 06/01/2022] [Indexed: 02/01/2023] Open
Abstract
Cancer arises following alterations at different cellular levels, including genetic and epigenetic modifications, transcription and translation dysregulation, as well as metabolic variations. High-throughput omics technologies that allow one to identify and quantify processes involved in these changes are now available and have been instrumental in generating a wealth of steadily increasing data from patient tumors, liquid biopsies, and from tumor models. Extensive investigation and integration of these data have led to new biological insights into the origin and development of multiple cancer types and helped to unravel the molecular networks underlying this complex pathology. The comprehensive and quantitative analysis of a molecule class in a biological sample is named omics and large-scale omics studies addressing different prostate cancer stages have been performed in recent years. Prostate tumors represent the second leading cancer type and a prevalent cause of cancer death in men worldwide. It is a very heterogenous disease so that evaluating inter- and intra-tumor differences will be essential for a precise insight into disease development and plasticity, but also for the development of personalized therapies. There is ample evidence for the key role of the androgen receptor, a steroid hormone-activated transcription factor, in driving early and late stages of the disease, and this led to the development and approval of drugs addressing diverse targets along this pathway. Early genomic and transcriptomic studies have allowed one to determine the genes involved in prostate cancer and regulated by androgen signaling or other tumor-relevant signaling pathways. More recently, they have been supplemented by epigenomic, cistromic, proteomic and metabolomic analyses, thus, increasing our knowledge on the intricate mechanisms involved, the various levels of regulation and their interplay. The comprehensive investigation of these omics approaches and their integration into multi-omics analyses have led to a much deeper understanding of the molecular pathways involved in prostate cancer progression, and in response and resistance to therapies. This brings the hope that novel vulnerabilities will be identified, that existing therapies will be more beneficial by targeting the patient population likely to respond best, and that bespoke treatments with increased efficacy will be available soon.
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Affiliation(s)
| | - Bernard Haendler
- Research and Early Development, Pharmaceuticals, Bayer AG, Müllerstr. 178, 13353 Berlin, Germany;
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Zhu Q, Zhang G, Tang M, Zheng R, Gan H. SPOP Inhibition of Endometrial Carcinoma and Its Clinicopathological Relationship. Appl Bionics Biomech 2022; 2022:5721630. [PMID: 35465183 PMCID: PMC9033399 DOI: 10.1155/2022/5721630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/14/2022] [Accepted: 03/21/2022] [Indexed: 12/24/2022] Open
Abstract
Objective Endometrial carcinoma (EC) ranks first in the incidence of female genital malignancies in developed countries. SPOP (speckle-type POZ protein) has changed in EC with a statistically high frequency. This research may play a crucial role in the initiation and progression of EC, ultimately leading to fresh therapeutic targets. Explore the expression of SPOP in EC; observe its effect on the proliferation, invasion, and migration of EC cells after upregulating the expression of SPOP through RNA activation. Methods The expression levels of SPOP protein in 150 EC tissues and 45 normal endometrial tissues were detected by immunohistochemistry and Western blotting. Analyze the relationship between SPOP expression and clinicopathological characteristics. The differences of the proliferation, migration, and invasion abilities between before and after transfection were analyzed using CCK-8 and Transwell assays. Results The results of immunohistochemistry and Western blotting showed the expression level of SPOP in EC tissue significantly reduced or even missed compared with normal endometrial tissue. The results of CCK-8 showed that the growth of EC significantly slowed down after the upregulating of SPOP expression. The results of the Transwell assay showed the migration and invasion abilities of EC cells were weakened after the level of SPOP was upregulated. Conclusions The expression level of SPOP in EC tissues is lower and related to the clinicopathological features compared with normal endometrial tissues. After upregulating the SPOP expression by RNA activation in EC cell lines, the abilities of proliferation, migration, and invasion of cells were significantly inhibited.
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Affiliation(s)
- Qing Zhu
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233399 Anhui, China
- Department of Pathology, Bengbu Medical College, Bengbu, 233030 Anhui, China
| | - Guanghui Zhang
- Class 2020, Clinical Pathology, The Graduate School, Bengbu Medical College, Bengbu, 233030 Anhui, China
| | - Mingyang Tang
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, 233030 Anhui, China
| | - Rumin Zheng
- Class 2019, Medical Imaging Technology, The Medical Imaging School, Bengbu Medical College, Bengbu, 233030 Anhui, China
| | - Huaiyong Gan
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233399 Anhui, China
- Department of Pathology, Bengbu Medical College, Bengbu, 233030 Anhui, China
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Liu N, Ling R, Tang X, Yu Y, Zhou Y, Chen D. Post-Translational Modifications of BRD4: Therapeutic Targets for Tumor. Front Oncol 2022; 12:847701. [PMID: 35402244 PMCID: PMC8993501 DOI: 10.3389/fonc.2022.847701] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 02/17/2022] [Indexed: 12/15/2022] Open
Abstract
Bromodomain-containing protein 4 (BRD4), a member of the bromodomain and extraterminal (BET) family, is considered to be a major driver of cancer cell growth and a new target for cancer therapy. Over 30 targeted inhibitors currently in preclinical and clinical trials have significant inhibitory effects on various tumors, including acute myelogenous leukemia (AML), diffuse large B cell lymphoma, prostate cancer, breast cancer and so on. However, resistance frequently occurs, revealing the limitations of BET inhibitor (BETi) therapy and the complexity of the BRD4 expression mechanism and action pathway. Current studies believe that when the internal and external environmental conditions of cells change, tumor cells can directly modify proteins by posttranslational modifications (PTMs) without changing the original DNA sequence to change their functions, and epigenetic modifications can also be activated to form new heritable phenotypes in response to various environmental stresses. In fact, research is constantly being supplemented with regards to that the regulatory role of BRD4 in tumors is closely related to PTMs. At present, the PTMs of BRD4 mainly include ubiquitination and phosphorylation; the former mainly regulates the stability of the BRD4 protein and mediates BETi resistance, while the latter is related to the biological functions of BRD4, such as transcriptional regulation, cofactor recruitment, chromatin binding and so on. At the same time, other PTMs, such as hydroxylation, acetylation and methylation, also play various roles in BRD4 regulation. The diversity, complexity and reversibility of posttranslational modifications affect the structure, stability and biological function of the BRD4 protein and participate in the occurrence and development of tumors by regulating the expression of tumor-related genes and even become the core and undeniable mechanism. Therefore, targeting BRD4-related modification sites or enzymes may be an effective strategy for cancer prevention and treatment. This review summarizes the role of different BRD4 modification types, elucidates the pathogenesis in the corresponding cancers, provides a theoretical reference for identifying new targets and effective combination therapy strategies, and discusses the opportunities, barriers, and limitations of PTM-based therapies for future cancer treatment.
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Affiliation(s)
| | | | | | | | | | - Deyu Chen
- *Correspondence: Deyu Chen, ; Yuepeng Zhou,
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