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Kishore C, Zi X. Wnt Signaling and Therapeutic Resistance in Castration-Resistant Prostate Cancer. CURRENT PHARMACOLOGY REPORTS 2023; 9:261-274. [PMID: 37994344 PMCID: PMC10664806 DOI: 10.1007/s40495-023-00333-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/23/2023] [Indexed: 11/24/2023]
Abstract
Purpose of Review Castration-resistant prostate cancer (CRPC) is a lethal form of prostate cancer (PCa) due to the development of resistance to androgen deprivation therapy and anti-androgens. Here, we review the emerging role of Wnt signaling in therapeutic resistance of CRPC. Recent Findings Convincing evidence have accumulated that Wnt signaling is aberrantly activated through genomic alterations and autocrine and paracrine augmentations. Wnt signaling plays a critical role in a subset of CRPC and in resistance to anti-androgen therapies. Wnt signaling navigates CRPC through PCa heterogeneity, neuroendocrine differentiation, DNA repair, PCa stem cell maintenance, epithelial-mesenchymal-transition and metastasis, and immune evasion. Summary Components of Wnt signaling can be harnessed for inhibiting PCa growth and metastasis and for developing novel therapeutic strategies to manage metastatic CRPC. There are many Wnt pathway-based potential drugs in different stages of pre-clinical development and clinical trials but so far, no Wnt signaling-specific drug has been approved by FDA for clinical use in CRPC.
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Affiliation(s)
- Chandra Kishore
- Department of Urology, University of California, Irvine, 101 The City Drive South, Rt.81 Bldg.55 Rm.204, Orange, CA 92868, USA
| | - Xiaolin Zi
- Department of Urology, University of California, Irvine, 101 The City Drive South, Rt.81 Bldg.55 Rm.204, Orange, CA 92868, USA
- Chao Family Comprehensive Cancer Center, University of California, Irvine, CA 92868, USA
- Department of Pharmaceutical Sciences, University of California, Irvine, CA 92617, USA
- Veterans Affairs Long Beach Healthcare System, Long Beach, CA 90822, USA
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2
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Bhoir S, De Benedetti A. Targeting Prostate Cancer, the 'Tousled Way'. Int J Mol Sci 2023; 24:11100. [PMID: 37446279 DOI: 10.3390/ijms241311100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/01/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Androgen deprivation therapy (ADT) has been the mainstay of prostate cancer (PCa) treatment, with success in developing more effective inhibitors of androgen synthesis and antiandrogens in clinical practice. However, hormone deprivation and AR ablation have caused an increase in ADT-insensitive PCas associated with a poor prognosis. Resistance to ADT arises through various mechanisms, and most castration-resistant PCas still rely on the androgen axis, while others become truly androgen receptor (AR)-independent. Our research identified the human tousled-like kinase 1 (TLK1) as a crucial early mediator of PCa cell adaptation to ADT, promoting androgen-independent growth, inhibiting apoptosis, and facilitating cell motility and metastasis. Although explicit, the growing role of TLK1 biology in PCa has remained underrepresented and elusive. In this review, we aim to highlight the diverse functions of TLK1 in PCa, shed light on the molecular mechanisms underlying the transition from androgen-sensitive (AS) to an androgen-insensitive (AI) disease mediated by TLK1, and explore potential strategies to counteract this process. Targeting TLK1 and its associated signaling could prevent PCa progression to the incurable metastatic castration-resistant PCa (mCRPC) stage and provide a promising approach to treating PCa.
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Affiliation(s)
- Siddhant Bhoir
- Department of Biochemistry and Molecular Biology, LSU Health Shreveport, Shreveport, LA 71103, USA
| | - Arrigo De Benedetti
- Department of Biochemistry and Molecular Biology, LSU Health Shreveport, Shreveport, LA 71103, USA
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3
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Vega-Benedetti AF, Loi E, Moi L, Zavattari P. DNA methylation alterations at RE1-silencing transcription factor binding sites and their flanking regions in cancer. Clin Epigenetics 2023; 15:98. [PMID: 37301955 PMCID: PMC10257853 DOI: 10.1186/s13148-023-01514-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND DNA methylation changes, frequent early events in cancer, can modulate the binding of transcription factors. RE1-silencing transcription factor (REST) plays a fundamental role in regulating the expression of neuronal genes, and in particular their silencing in non-neuronal tissues, by inducing chromatin modifications, including DNA methylation changes, not only in the proximity of its binding sites but also in the flanking regions. REST has been found aberrantly expressed in brain cancer and other cancer types. In this work, we investigated DNA methylation alterations at REST binding sites and their flanking regions in a brain cancer (pilocytic astrocytoma), two gastrointestinal tumours (colorectal cancer and biliary tract cancer) and a blood cancer (chronic lymphocytic leukemia). RESULTS Differential methylation analyses focused on REST binding sites and their flanking regions were conducted between tumour and normal samples from our experimental datasets analysed by Illumina microarrays and the identified alterations were validated using publicly available datasets. We discovered distinct DNA methylation patterns between pilocytic astrocytoma and the other cancer types in agreement with the opposite oncogenic and tumour suppressive role of REST in glioma and non-brain tumours. CONCLUSIONS Our results suggest that these DNA methylation alterations in cancer may be associated with REST dysfunction opening the enthusiastic possibility to develop novel therapeutic interventions based on the modulation of this master regulator in order to restore the aberrant methylation of its target regions into a normal status.
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Affiliation(s)
| | - Eleonora Loi
- Department of Biomedical Sciences, Unit of Biology and Genetics, University of Cagliari, 09042, Cagliari, Italy
| | - Loredana Moi
- Department of Biomedical Sciences, Unit of Biology and Genetics, University of Cagliari, 09042, Cagliari, Italy
| | - Patrizia Zavattari
- Department of Biomedical Sciences, Unit of Biology and Genetics, University of Cagliari, 09042, Cagliari, Italy.
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4
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Burek M, Kaupp V, Blecharz-Lang K, Dilling C, Meybohm P. Protocadherin gamma C3: a new player in regulating vascular barrier function. Neural Regen Res 2023. [PMID: 35799511 PMCID: PMC9241426 DOI: 10.4103/1673-5374.343896] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Defects in the endothelial cell barrier accompany diverse malfunctions of the central nervous system such as neurodegenerative diseases, stroke, traumatic brain injury, and systemic diseases such as sepsis, viral and bacterial infections, and cancer. Compromised endothelial sealing leads to leaking blood vessels, followed by vasogenic edema. Brain edema as the most common complication caused by stroke and traumatic brain injury is the leading cause of death. Brain microvascular endothelial cells, together with astrocytes, pericytes, microglia, and neurons form a selective barrier, the so-called blood-brain barrier, which regulates the movement of molecules inside and outside of the brain. Mechanisms that regulate blood-brain barrier permeability in health and disease are complex and not fully understood. Several newly discovered molecules that are involved in the regulation of cellular processes in brain microvascular endothelial cells have been described in the literature in recent years. One of these molecules that are highly expressed in brain microvascular endothelial cells is protocadherin gamma C3. In this review, we discuss recent evidence that protocadherin gamma C3 is a newly identified key player involved in the regulation of vascular barrier function.
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Lee S, Park YS, Kim JH, Lim AR, Hyun MH, Kim B, Lee JW, Lee SB, Kim YH. Identification of Biomarkers Associated with Liver Metastasis Progression from Colorectal Cancer Using Exosomal RNA Profiling. Cancers (Basel) 2022; 14:cancers14194723. [PMID: 36230645 PMCID: PMC9562015 DOI: 10.3390/cancers14194723] [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: 06/13/2022] [Revised: 09/18/2022] [Accepted: 09/22/2022] [Indexed: 01/18/2023] Open
Abstract
This study aimed to identify novel biomarkers for metastatic colorectal cancer progression using exosomal RNA expression profiling. The exosomal RNA expression profiles of 54 patients with mCRC were investigated. Exosomal RNA profiling was performed at the time of relapse immediately before metastasectomy and cancer recurrence or progression after metastasectomy. The up- and down-regulated RNA expression profiles were screened and analyzed using H-cluster, principle component analysis and gene ontology. The tissue expression profile of the liver metastases was compared with the GSE 41258 set using GSEA tools. We identified two distinctive biological process gene sets (IFNA and PCDB families) related to metastatic progression. The interferon-α response gene set was enriched, especially when the tumor volume was ≥1 cm3. CXCL10, CXCL11 and SAMD 9 mRNA were highly expressed in the plasma exosome samples of patients with mCRC to the liver. Furthermore, high expression of CXCL10 but not CXCL11 or SAMD9 was associated with a poor prognosis and shorter progression-free survival. Conclusions: Cancer-derived exosomal CXCL10 may be a novel biomarker for liver metastasis of mCRC and a potential target for the prevention and treatment of mCRC with liver metastasis.
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Affiliation(s)
- Soohyeon Lee
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea
| | - Young Soo Park
- Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea
| | - Jwa Hoon Kim
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea
| | - Ah Reum Lim
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea
| | - Myung Han Hyun
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea
| | - Boyeon Kim
- Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea
- Brain Korea 21 Plus Project for Biomedical Science, Korea University College of Medicine, Seoul 02841, Korea
| | - Jong Won Lee
- Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Korea
| | - Saet Byeol Lee
- Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea
- Brain Korea 21 Plus Project for Biomedical Science, Korea University College of Medicine, Seoul 02841, Korea
| | - Yeul Hong Kim
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea
- Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea
- Brain Korea 21 Plus Project for Biomedical Science, Korea University College of Medicine, Seoul 02841, Korea
- Correspondence: ; Tel.: +82-2-920-5569; Fax: +82-2-926-4534
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Aksoy E, Cogulu O, Pariltay E, Ozen S, Ata A, Karaca E, Darcan S. Association between clinical variations and copy number variations in cases with Turner syndrome. J Pediatr Endocrinol Metab 2022; 35:1161-1168. [PMID: 35953302 DOI: 10.1515/jpem-2022-0153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 07/14/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Turner syndrome (TS) is one of the most common chromosomal abnormalities with an incidence of approximately one in 2,500 live births. Short stature and primary ovarian insufficiency are two most important characteristic findings of TS. Turner syndrome karyotypes include monosomy X, mosaic structure and X chromosome structural anomalies. Genotypic and phenotypic characteristics vary among cases. This study aimed to evaluate the clinical variations observed in TS cases with the copy number variations (CNV) detected by microarray study. METHODS Fifty-three patients diagnosed with TS, between the ages of 0-18 were included in the study. Peripheral blood samples were taken from 36 cases for microarray study. RESULTS Karyotypes were as follows: thirty-three of cases were 45,X, 7 were 45,X/46,XX, 6 were 45,X/46,Xi(Xq), 2 were 46,Xi(Xq), 2 were 45,X/46,r(X), 1 was 45,X/46,Xi(Xp), 1 was 45,X/46,XY and 1 was 45,X/46,X+mar(idicY) karyotype. A significant correlation was found between karyotype groups and FSH values of the cases (p=0.034). In monosomy X and mosaic isochromosome Xq cases, the FSH value was found to be significantly higher than those with 45,X/46,XX mosaic karyotype. CNVs were found in 8 (22.2%) out of 36 cases whose microarray study was performed. Unexpected atypical findings were discussed in the light of the characteristics of CNVs. CONCLUSIONS In conclusion, the microarray method has a great contribution in explaining many unexpected findings in TS cases. Moreover, those CNV findings may contribute for the explanation of the underlying mechanisms of those anomalies.
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Affiliation(s)
- Ezgi Aksoy
- Department of Child Health and Diseases, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Ozgur Cogulu
- Department of Medical Genetics, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Erhan Pariltay
- Department of Medical Genetics, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Samim Ozen
- Department of Pediatric Endocrinology and Diabetes, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Aysun Ata
- Department of Pediatric Endocrinology and Diabetes, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Emin Karaca
- Department of Medical Genetics, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Sukran Darcan
- Department of Pediatric Endocrinology and Diabetes, Faculty of Medicine, Ege University, Izmir, Turkey
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7
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Xie Y, Ning S, Hu J. Molecular mechanisms of neuroendocrine differentiation in prostate cancer progression. J Cancer Res Clin Oncol 2022; 148:1813-1823. [PMID: 35633416 PMCID: PMC9189092 DOI: 10.1007/s00432-022-04061-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/09/2022] [Indexed: 12/03/2022]
Abstract
Background Rapid evolution of the therapeutic management of prostate cancer, especially in in second-generation androgen inhibitors, has increased the opportunity of transformation from prostate cancer (PCa) to neuroendocrine prostate cancer (NEPC). NEPC still lacks effective diagnostic and therapeutic interventions. Researches into the molecular characteristics of neuroendocrine differentiation is undoubtedly crucial to the discovery of new target genes for accurate diagnostic and therapeutic targets. Purpose In this review, we focus on the relevant genes and molecular mechanisms that have contributed to the transformation in the progression of PCa and discuss the potential targeted molecule that might improve diagnostic accuracy and therapeutic effectiveness. Methods The relevant literatures from PubMed have been reviewed for this article. Conclusion Several molecular characteristics influence the progression of neuroendocrine differentiation of prostate cancer which will provide a novel sight for accurate diagnosis and target therapeutic intervention for patients with NEPC.
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Affiliation(s)
- Yuchen Xie
- Affiliated Renmin Hospital of Jiangsu University, Zhenjiang First People's Hospital, Zhenjiang, 212002, China
| | - Songyi Ning
- Jiangsu University, Zhenjiang, 212013, China
| | - Jianpeng Hu
- Affiliated Renmin Hospital of Jiangsu University, Zhenjiang First People's Hospital, Zhenjiang, 212002, China.
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8
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Merkens L, Sailer V, Lessel D, Janzen E, Greimeier S, Kirfel J, Perner S, Pantel K, Werner S, von Amsberg G. Aggressive variants of prostate cancer: underlying mechanisms of neuroendocrine transdifferentiation. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:46. [PMID: 35109899 PMCID: PMC8808994 DOI: 10.1186/s13046-022-02255-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/13/2022] [Indexed: 12/14/2022]
Abstract
Prostate cancer is a hormone-driven disease and its tumor cell growth highly relies on increased androgen receptor (AR) signaling. Therefore, targeted therapy directed against androgen synthesis or AR activation is broadly used and continually improved. However, a subset of patients eventually progresses to castration-resistant disease. To date, various mechanisms of resistance have been identified including the development of AR-independent aggressive variant prostate cancer based on neuroendocrine transdifferentiation (NED). Here, we review the highly complex processes contributing to NED. Genetic, epigenetic, transcriptional aberrations and posttranscriptional modifications are highlighted and the potential interplay of the different factors is discussed. Background Aggressive variant prostate cancer (AVPC) with traits of neuroendocrine differentiation emerges in a rising number of patients in recent years. Among others, advanced therapies targeting the androgen receptor axis have been considered causative for this development. Cell growth of AVPC often occurs completely independent of the androgen receptor signal transduction pathway and cells have mostly lost the typical cellular features of prostate adenocarcinoma. This complicates both diagnosis and treatment of this very aggressive disease. We believe that a deeper understanding of the complex molecular pathological mechanisms contributing to transdifferentiation will help to improve diagnostic procedures and develop effective treatment strategies. Indeed, in recent years, many scientists have made important contributions to unravel possible causes and mechanisms in the context of neuroendocrine transdifferentiation. However, the complexity of the diverse molecular pathways has not been captured completely, yet. This narrative review comprehensively highlights the individual steps of neuroendocrine transdifferentiation and makes an important contribution in bringing together the results found so far.
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Affiliation(s)
- Lina Merkens
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
| | - Verena Sailer
- Institute of Pathology, University of Luebeck and University Hospital Schleswig-Holstein, Campus Luebeck, Ratzeburger Allee 160, 23538, Luebeck, Germany
| | - Davor Lessel
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Ella Janzen
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Sarah Greimeier
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Jutta Kirfel
- Institute of Pathology, University of Luebeck and University Hospital Schleswig-Holstein, Campus Luebeck, Ratzeburger Allee 160, 23538, Luebeck, Germany
| | - Sven Perner
- Institute of Pathology, University of Luebeck and University Hospital Schleswig-Holstein, Campus Luebeck, Ratzeburger Allee 160, 23538, Luebeck, Germany.,Pathology, Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Klaus Pantel
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.,European Liquid Biopsy Society (ELBS), Hamburg, Germany
| | - Stefan Werner
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.,Mildred Scheel Cancer Career Center Hamburg HaTRiCs4, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gunhild von Amsberg
- Department of Hematology and Oncology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.,Martini-Klinik, Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
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9
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Chen S, Yang Y, Gao B, Jia C, Zhu F, Meng Q, Zhang Z, Zhang Z, Xu S. Comparative Proteomics of the Acanthopagrus schlegelii Gonad in Different Sex Reversal. Genes (Basel) 2022; 13:genes13020253. [PMID: 35205296 PMCID: PMC8871944 DOI: 10.3390/genes13020253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/23/2022] [Accepted: 01/25/2022] [Indexed: 01/15/2023] Open
Abstract
A substantial proportion of Acanthopagrus schlegelii individuals change sex from male to female during their lifetime. However, the mechanisms underlying sex change are unknown. In this research, iTRAQ analyses of proteins obtained from A.schlegelii gonads in four different stages of development were compared. In total, 4692 proteins were identified, including common sex-specific proteins, such as sperm-associated antigen 6 and cilia- and flagella-associated proteins in males, and zona pellucida sperm-binding proteins in females. Furthermore, proteins involved in the integrin signaling pathway, inflammation mediated by the chemokine and cytokine signaling pathways, pyruvate metabolism, CCKR signaling map, de novo purine biosynthesis and the ubiquitin proteasome pathway were upregulated in female gonads, whereas proteins implicated in DNA replication, the heterotrimeric G-protein signaling pathway, Gi alpha- and Gs alpha-mediated pathways, wnt signaling pathway, and hedgehog signaling pathway were upregulated in male gonads. Interestingly, cathepsins were only identified in ovaries, indicating their potential involvement in rapid ovarian development. Apoptosis-related proteins expressed in ovaries (such as MAPK and Cdc42) may protect them from cancer. This is the first report on the gonad proteome from A.schlegelii in different stages of sex reversal, and the results provide important fundamental data for studying the molecular mechanisms of sex reversal.
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Affiliation(s)
- Shuyin Chen
- Marine Fisheries Research Institute of Jiangsu Province, Nantong 226007, China; (S.C.); (B.G.); (C.J.); (F.Z.); (Q.M.); (Z.Z.)
| | - Yunxia Yang
- Department of Aquaculture, Zhejiang Ocean University, Zhoushan 316022, China;
| | - Bo Gao
- Marine Fisheries Research Institute of Jiangsu Province, Nantong 226007, China; (S.C.); (B.G.); (C.J.); (F.Z.); (Q.M.); (Z.Z.)
| | - Chaofeng Jia
- Marine Fisheries Research Institute of Jiangsu Province, Nantong 226007, China; (S.C.); (B.G.); (C.J.); (F.Z.); (Q.M.); (Z.Z.)
| | - Fei Zhu
- Marine Fisheries Research Institute of Jiangsu Province, Nantong 226007, China; (S.C.); (B.G.); (C.J.); (F.Z.); (Q.M.); (Z.Z.)
| | - Qian Meng
- Marine Fisheries Research Institute of Jiangsu Province, Nantong 226007, China; (S.C.); (B.G.); (C.J.); (F.Z.); (Q.M.); (Z.Z.)
| | - Zhiwei Zhang
- Marine Fisheries Research Institute of Jiangsu Province, Nantong 226007, China; (S.C.); (B.G.); (C.J.); (F.Z.); (Q.M.); (Z.Z.)
| | - Zhiyong Zhang
- Marine Fisheries Research Institute of Jiangsu Province, Nantong 226007, China; (S.C.); (B.G.); (C.J.); (F.Z.); (Q.M.); (Z.Z.)
- Correspondence: (Z.Z.); (S.X.)
| | - Shixia Xu
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
- Correspondence: (Z.Z.); (S.X.)
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10
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Crowley F, Sterpi M, Buckley C, Margetich L, Handa S, Dovey Z. A Review of the Pathophysiological Mechanisms Underlying Castration-resistant Prostate Cancer. Res Rep Urol 2021; 13:457-472. [PMID: 34235102 PMCID: PMC8256377 DOI: 10.2147/rru.s264722] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/10/2021] [Indexed: 12/12/2022] Open
Abstract
Androgen deprivation therapy or ADT is one of the cornerstones of management of locally advanced or metastatic prostate cancer, alongside radiation therapy. However, despite early response, most advanced prostate cancers progress into an androgen unresponsive or castrate resistant state, which hitherto remains an incurable entity and the second leading cause of cancer-related mortality in men in the US. Recent advances have uncovered multiple complex and intermingled mechanisms underlying this transformation. While most of these mechanisms revolve around androgen receptor (AR) signaling, novel pathways which act independently of the androgen axis are also being discovered. The aim of this article is to review the pathophysiological mechanisms that help bypass the apoptotic effects of ADT to create castrate resistance. The article discusses castrate resistance mechanisms under two categories: 1. Direct AR dependent pathways such as amplification or gain of function mutations in AR, development of functional splice variants, posttranslational regulation, and pro-oncogenic modulation in the expression of coactivators vs corepressors of AR. 2. Ancillary pathways involving RAS/MAP kinase, TGF-beta/SMAD pathway, FGF signaling, JAK/STAT pathway, Wnt-Beta catenin and hedgehog signaling as well as the role of cell adhesion molecules and G-protein coupled receptors. miRNAs are also briefly discussed. Understanding the mechanisms involved in the development and progression of castration-resistant prostate cancer is paramount to the development of targeted agents to overcome these mechanisms. A number of targeted agents are currently in development. As we strive for more personalized treatment across oncology care, treatment regimens will need to be tailored based on the type of CRPC and the underlying mechanism of castration resistance.
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Affiliation(s)
- Fionnuala Crowley
- Department of Internal Medicine, Icahn School of Medicine, Mount Sinai Morningside and West, New York, NY, USA
| | - Michelle Sterpi
- Department of Internal Medicine, Icahn School of Medicine, Mount Sinai Morningside and West, New York, NY, USA
| | - Conor Buckley
- Department of Internal Medicine, Icahn School of Medicine, Mount Sinai Morningside and West, New York, NY, USA
| | - Lauren Margetich
- Department of Internal Medicine, Icahn School of Medicine, Mount Sinai Morningside and West, New York, NY, USA
| | - Shivani Handa
- Department of Internal Medicine, Icahn School of Medicine, Mount Sinai Morningside and West, New York, NY, USA
| | - Zach Dovey
- Department of Urology, Icahn School of Medicine, Mount Sinai Hospital, New York, NY, USA
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11
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Cheng WC, Wang HJ. Current advances of targeting epigenetic modifications in neuroendocrine prostate cancer. Tzu Chi Med J 2021; 33:224-232. [PMID: 34386358 PMCID: PMC8323647 DOI: 10.4103/tcmj.tcmj_220_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/05/2020] [Accepted: 10/06/2020] [Indexed: 11/15/2022] Open
Abstract
Neuroendocrine prostate cancer (NEPC) is the most lethal malignancy of prostate cancer (PCa). Treatment with next-generation androgen receptor (AR) pathway inhibitors (ARPIs) has successfully extended patients' lifespan. However, with the emergence of drug resistance, PCa tumors increasingly adapt to potent ARPI therapies by transitioning to alternative cellular lineage. Such therapy-induced drug resistance is largely driven from the cellular plasticity of PCa cells to alter their phenotypes of AR independence for cell growth and survival. Some of the resistant PCa cells undergo cellular reprogramming to form neuroendocrine phenotypes. Recent evidences suggest that this cellular reprogramming or the lineage plasticity is driven by dysregulation of the epigenome and transcriptional networks. Aberrant DNA methylation and altered expression of epigenetic modifiers, such as enhancer of zeste-homolog 2, transcription factors, histone demethylases, are hallmarks of NEPC. In this review, we discuss the nature of the epigenetic and transcriptional landscapes of PCa cells which lose their AR independence and transition to the neuroendocrine lineage. We also discuss how oncogenic signaling and metabolic reprogramming fuel epigenetic and transcriptional alterations. In addition, the current state of epigenetic therapies for NEPC is addressed.
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Affiliation(s)
- Wen-Chi Cheng
- SDGs Teaching and Research Headquarters, Tzu Chi University, Hualien, Taiwan
| | - Hung-Jung Wang
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.,Doctoral Degree Program in Translational Medicine, Tzu Chi University and Academia Sinica, Hualien, Taiwan
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12
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Ferreira WAS, Amorim CKN, Burbano RR, Villacis RAR, Marchi FA, Medina TS, Lima MMCD, Oliveira EHCD. Genomic and transcriptomic characterization of the human glioblastoma cell line AHOL1. ACTA ACUST UNITED AC 2021; 54:e9571. [PMID: 33470396 PMCID: PMC7812907 DOI: 10.1590/1414-431x20209571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 10/26/2020] [Indexed: 01/08/2023]
Abstract
Cancer cell lines are widely used as in vitro models of tumorigenesis, facilitating fundamental discoveries in cancer biology and translational medicine. Currently, there are few options for glioblastoma (GBM) treatment and limited in vitro models with accurate genomic and transcriptomic characterization. Here, a detailed characterization of a new GBM cell line, namely AHOL1, was conducted in order to fully characterize its molecular composition based on its karyotype, copy number alteration (CNA), and transcriptome profiling, followed by the validation of key elements associated with GBM tumorigenesis. Large numbers of CNAs and differentially expressed genes (DEGs) were identified. CNAs were distributed throughout the genome, including gains at Xq11.1-q28, Xp22.33-p11.1, Xq21.1-q21.33, 4p15.1-p14, 8q23.2-q23.3 and losses at Yq11.21-q12, Yp11.31-p11.2, and 15q11.1-q11.2 positions. Nine druggable genes were identified, including HCRTR2, ETV1, PTPRD, PRKX, STS, RPS6KA6, ZFY, USP9Y, and KDM5D. By integrating DEGs and CNAs, we identified 57 overlapping genes enriched in fourteen pathways. Altered expression of several cancer-related candidates found in the DEGs-CNA dataset was confirmed by RT-qPCR. Taken together, this first comprehensive genomic and transcriptomic landscape of AHOL1 provides unique resources for further studies and identifies several druggable targets that may be useful for therapeutics and biologic and molecular investigation of GBM.
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Affiliation(s)
- W A S Ferreira
- Laboratório de Cultura de Tecidos e Citogenética, SAMAM, Instituto Evandro Chagas, Ananindeua, PA, Brasil
| | - C K N Amorim
- Laboratório de Cultura de Tecidos e Citogenética, SAMAM, Instituto Evandro Chagas, Ananindeua, PA, Brasil
| | - R R Burbano
- Laboratório de Citogenética Humana, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil.,Núcleo de Pesquisas em Oncologia, Hospital Universitário João de Barros Barreto, Belém, PA, Brasil.,Laboratório de Biologia Molecular, Hospital Ophir Loyola, Belém, PA, Brasil
| | - R A R Villacis
- Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, Brasil
| | - F A Marchi
- Centro Internacional de Pesquisa, A.C. Camargo Cancer Center, São Paulo, SP, Brasil
| | - T S Medina
- Centro Internacional de Pesquisa, A.C. Camargo Cancer Center, São Paulo, SP, Brasil
| | - M M C de Lima
- Instituto de Ciências Biológicas, Faculdade de Biomedicina, Universidade Federal do Pará, Belém, PA, Brasil
| | - E H C de Oliveira
- Laboratório de Cultura de Tecidos e Citogenética, SAMAM, Instituto Evandro Chagas, Ananindeua, PA, Brasil.,Instituto de Ciências Exatas e Naturais, Faculdade de Ciências Naturais, Universidade Federal do Pará, Belém, PA, Brasil
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13
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Jhun M, Panwar A, Cordner R, Irvin DK, Veiga L, Yeager N, Pechnick RN, Schubloom H, Black KL, Wheeler CJ. CD103 Deficiency Promotes Autism (ASD) and Attention-Deficit Hyperactivity Disorder (ADHD) Behavioral Spectra and Reduces Age-Related Cognitive Decline. Front Neurol 2021; 11:557269. [PMID: 33424735 PMCID: PMC7786306 DOI: 10.3389/fneur.2020.557269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 12/03/2020] [Indexed: 11/17/2022] Open
Abstract
The incidence of autism spectrum disorders (ASD) and attention deficit hyperactivity disorder (ADHD), which frequently co-occur, are both rising. The causes of ASD and ADHD remain elusive, even as both appear to involve perturbation of the gut-brain-immune axis. CD103 is an integrin and E-cadherin receptor most prominently expressed on CD8 T cells that reside in gut, brain, and other tissues. CD103 deficiency is well-known to impair gut immunity and resident T cell function, but it's impact on neurodevelopmental disorders has not been examined. We show here that CD8 T cells influence neural progenitor cell function, and that CD103 modulates this impact both directly and potentially by controlling CD8 levels in brain. CD103 knockout (CD103KO) mice exhibited a variety of behavioral abnormalities, including superior cognitive performance coupled with repetitive behavior, aversion to novelty and social impairment in females, with hyperactivity with delayed learning in males. Brain protein markers in female and male CD103KOs coincided with known aspects of ASD and ADHD in humans, respectively. Surprisingly, CD103 deficiency also decreased age-related cognitive decline in both sexes, albeit by distinct means. Together, our findings reveal a novel role for CD103 in brain developmental function, and identify it as a unique factor linking ASD and ADHD etiology. Our data also introduce a new animal model of combined ASD and ADHD with associated cognitive benefits, and reveal potential therapeutic targets for these disorders and age-related cognitive decline.
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Affiliation(s)
- Michelle Jhun
- Department of Neurosurgery, Cedars-Sinai Medical Center, Maxine Dunitz Neurosurgical Institute, Los Angeles, CA, United States
| | - Akanksha Panwar
- Department of Neurosurgery, Cedars-Sinai Medical Center, Maxine Dunitz Neurosurgical Institute, Los Angeles, CA, United States
| | - Ryan Cordner
- Department of Neurosurgery, Cedars-Sinai Medical Center, Maxine Dunitz Neurosurgical Institute, Los Angeles, CA, United States.,Department Biomedical & Translational Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Dwain K Irvin
- Department of Neurosurgery, Cedars-Sinai Medical Center, Maxine Dunitz Neurosurgical Institute, Los Angeles, CA, United States.,StemVax Therapeutics, Chesterland, OH, United States
| | - Lucia Veiga
- Department of Neurosurgery, Cedars-Sinai Medical Center, Maxine Dunitz Neurosurgical Institute, Los Angeles, CA, United States
| | - Nicole Yeager
- Department Biomedical & Translational Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Robert N Pechnick
- Department of Basic Medical Sciences, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, United States
| | - Hanna Schubloom
- Department of Neurosurgery, Cedars-Sinai Medical Center, Maxine Dunitz Neurosurgical Institute, Los Angeles, CA, United States
| | - Keith L Black
- Department of Neurosurgery, Cedars-Sinai Medical Center, Maxine Dunitz Neurosurgical Institute, Los Angeles, CA, United States
| | - Christopher J Wheeler
- Department of Neurosurgery, Cedars-Sinai Medical Center, Maxine Dunitz Neurosurgical Institute, Los Angeles, CA, United States.,Society for Brain Mapping & Therapeutics, Brain Mapping Foundation, Santa Monica, CA, United States.,T-Neuro Pharma, Inc., Albuquerque, NM, United States
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14
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Formaggio N, Rubin MA, Theurillat JP. Loss and revival of androgen receptor signaling in advanced prostate cancer. Oncogene 2021; 40:1205-1216. [PMID: 33420371 PMCID: PMC7892335 DOI: 10.1038/s41388-020-01598-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/20/2020] [Accepted: 11/30/2020] [Indexed: 02/08/2023]
Abstract
Targeting the androgen receptor (AR) signaling axis has been, over decades, the mainstay of prostate cancer therapy. More potent inhibitors of androgen synthesis and antiandrogens have emerged and have been successfully implemented in clinical practice. That said, the stronger inhibition of the AR signaling axis has led in recent years to an increase of prostate cancers that de-differentiate into AR-negative disease. Unfortunately, this process is intimately linked with a poor prognosis. Here, we review the molecular mechanisms that enable cancer cells to switch from an AR-positive to an AR-negative disease and efforts to prevent/revert this process and thereby maintain/restore AR-dependence.
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Affiliation(s)
- Nicolò Formaggio
- grid.29078.340000 0001 2203 2861Institute of Oncology Research, Università della Svizzera italiana, Lugano, Switzerland
| | - Mark A. Rubin
- grid.5734.50000 0001 0726 5157Department for BioMedical Research and Bern Center of Precision Medicine, University of Bern and Inselspital, Bern, Switzerland
| | - Jean-Philippe Theurillat
- grid.29078.340000 0001 2203 2861Institute of Oncology Research, Università della Svizzera italiana, Lugano, Switzerland
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15
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Pancho A, Aerts T, Mitsogiannis MD, Seuntjens E. Protocadherins at the Crossroad of Signaling Pathways. Front Mol Neurosci 2020; 13:117. [PMID: 32694982 PMCID: PMC7339444 DOI: 10.3389/fnmol.2020.00117] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 06/08/2020] [Indexed: 12/25/2022] Open
Abstract
Protocadherins (Pcdhs) are cell adhesion molecules that belong to the cadherin superfamily, and are subdivided into clustered (cPcdhs) and non-clustered Pcdhs (ncPcdhs) in vertebrates. In this review, we summarize their discovery, expression mechanisms, and roles in neuronal development and cancer, thereby highlighting the context-dependent nature of their actions. We furthermore provide an extensive overview of current structural knowledge, and its implications concerning extracellular interactions between cPcdhs, ncPcdhs, and classical cadherins. Next, we survey the known molecular action mechanisms of Pcdhs, emphasizing the regulatory functions of proteolytic processing and domain shedding. In addition, we outline the importance of Pcdh intracellular domains in the regulation of downstream signaling cascades, and we describe putative Pcdh interactions with intracellular molecules including components of the WAVE complex, the Wnt pathway, and apoptotic cascades. Our overview combines molecular interaction data from different contexts, such as neural development and cancer. This comprehensive approach reveals potential common Pcdh signaling hubs, and points out future directions for research. Functional studies of such key factors within the context of neural development might yield innovative insights into the molecular etiology of Pcdh-related neurodevelopmental disorders.
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Affiliation(s)
- Anna Pancho
- Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Tania Aerts
- Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Manuela D Mitsogiannis
- Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Eve Seuntjens
- Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
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16
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Cheng S, Prieto-Dominguez N, Yang S, Connelly ZM, StPierre S, Rushing B, Watkins A, Shi L, Lakey M, Baiamonte LB, Fazili T, Lurie A, Corey E, Shi R, Yeh Y, Yu X. The expression of YAP1 is increased in high-grade prostatic adenocarcinoma but is reduced in neuroendocrine prostate cancer. Prostate Cancer Prostatic Dis 2020; 23:661-669. [PMID: 32313141 PMCID: PMC7572469 DOI: 10.1038/s41391-020-0229-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 03/25/2020] [Accepted: 03/31/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND After long-term androgen deprivation therapy, 25-30% prostate cancer (PCa) acquires an aggressive neuroendocrine (NE) phenotype. Dysregulation of YAP1, a key transcription coactivator of the Hippo pathway, has been related to cancer progression. However, its role in neuroendocrine prostate cancer (NEPC) has not been assessed. METHODS Immunohistochemistry and bioinformatics analysis were conducted to evaluate YAP1 expression levels during PCa initiation and progression. RESULTS YAP1 expression was present in the basal epithelial cells in benign prostatic tissues, lost in low-grade PCa, but elevated in high-grade prostate adenocarcinomas. Interestingly, the expression of YAP1 was reduced/lost in both human and mouse NEPC. CONCLUSIONS The expression of YAP1 is elevated in high-grade prostate adenocarcinomas but lost in NEPC.
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Affiliation(s)
- Siyuan Cheng
- Department of Biochemistry & Molecular Biology, LSU Health-Shreveport, Shreveport, LA, USA
| | | | - Shu Yang
- Department of Biochemistry & Molecular Biology, LSU Health-Shreveport, Shreveport, LA, USA
| | - Zachary M Connelly
- Department of Biochemistry & Molecular Biology, LSU Health-Shreveport, Shreveport, LA, USA
| | - Samantha StPierre
- Department of Biochemistry & Molecular Biology, LSU Health-Shreveport, Shreveport, LA, USA
| | - Bryce Rushing
- Department of Biochemistry & Molecular Biology, LSU Health-Shreveport, Shreveport, LA, USA
| | - Andy Watkins
- Department of Biochemistry & Molecular Biology, LSU Health-Shreveport, Shreveport, LA, USA
| | - Lawrence Shi
- Department of Biochemistry & Molecular Biology, LSU Health-Shreveport, Shreveport, LA, USA
| | | | | | - Tajammul Fazili
- Urology Service, Overton Brooks Medical Center, Shreveport, LA, USA.,Department of Urology, LSU Health-Shreveport, Shreveport, LA, USA
| | - Aubrey Lurie
- Pathology & Laboratory Medicine Service, Overton Brooks VA Medical Center, Shreveport, LA, USA
| | - Eva Corey
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Runhua Shi
- Department of Medicine, LSU Health-Shreveport, Shreveport, LA, USA
| | - Yunshin Yeh
- Department of Urology, LSU Health-Shreveport, Shreveport, LA, USA.,Pathology & Laboratory Medicine Service, Overton Brooks VA Medical Center, Shreveport, LA, USA
| | - Xiuping Yu
- Department of Biochemistry & Molecular Biology, LSU Health-Shreveport, Shreveport, LA, USA. .,Department of Urology, LSU Health-Shreveport, Shreveport, LA, USA.
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17
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Targeting FAT1 Inhibits Carcinogenesis, Induces Oxidative Stress and Enhances Cisplatin Sensitivity through Deregulation of LRP5/WNT2/GSS Signaling Axis in Oral Squamous Cell Carcinoma. Cancers (Basel) 2019; 11:cancers11121883. [PMID: 31783581 PMCID: PMC6966489 DOI: 10.3390/cancers11121883] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/11/2019] [Accepted: 11/21/2019] [Indexed: 12/14/2022] Open
Abstract
FAT atypical cadherin 1 (FAT1) regulates cell-cell adhesion and extracellular matrix architecture, while acting as tumor suppressor or oncogene, context-dependently. Despite implication of FAT1 in several malignancies, its role in oral squamous cell carcinoma (OSCC) remains unclear. Herein, we document the driver-oncogene role of FAT1, and its mediation of cell-death evasion, proliferation, oncogenicity, and chemoresistance in OSCC. In-silica analyses indicate FAT1 mutations are frequent and drive head-neck SCC, with enhanced expression defining high-risk population and poor prognosis. We demonstrated aberrant FAT1 mRNA and protein expression in OSCC compared with non-cancer tissues, whereas loss-of-FAT1-function attenuates human primary SAS and metastatic HSC-3 OSCC cell viability, without affecting normal primary human gingival fibroblast cells. shFAT1 suppressed PCNA and upregulated BAX/BCL2 ratio in SAS and HSC-3 cells. Moreover, compared with wild-type cells, shFAT1 concomitantly impaired HSC-3 cell migration, invasion, and clonogenicity. Interestingly, while over-expressed FAT1 characterized cisplatin-resistance (CispR), shFAT1 synchronously re-sensitized CispR cells to cisplatin, enhanced glutathione (GSH)/GSH synthetase (GSS)-mediated oxidative stress and deregulated LRP5/WNT2 signaling. Concisely, FAT1 is an actionable driver-oncogene in OSCC and targeting FAT1 in patients with erstwhile cisplatin-resistant OSCC is therapeutically promising.
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18
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Abstract
Aberrant activation of the homeostatic Wnt signaling pathway is a hallmark of various types of cancer. In many cases, it is unclear how elevated Wnt levels are maintained in the absence of activating pathway mutations. Here we find that the uncharacterized transcription factor FOXB2, whose expression is usually restricted to the developing brain, is induced in aggressive prostate cancer. FOXB2 strongly activates Wnt signaling via the induction of multiple pathway agonists, particularly the neurogenic ligand WNT7B. Accordingly, our analyses suggest that FOXB2 imposes a neuronal differentiation program on prostate cancer cells, which is associated with treatment failure and poor prognosis. Thus, our work identifies FOXB2 as a tissue-specific Wnt activator that may play a role in prostate cancer progression. The Wnt signaling pathway is of paramount importance for development and disease. However, the tissue-specific regulation of Wnt pathway activity remains incompletely understood. Here we identify FOXB2, an uncharacterized forkhead box family transcription factor, as a potent activator of Wnt signaling in normal and cancer cells. Mechanistically, FOXB2 induces multiple Wnt ligands, including WNT7B, which increases TCF/LEF-dependent transcription without activating Wnt coreceptor LRP6 or β-catenin. Proximity ligation and functional complementation assays identified several transcription regulators, including YY1, JUN, and DDX5, as cofactors required for FOXB2-dependent pathway activation. Although FOXB2 expression is limited in adults, it is induced in select cancers, particularly advanced prostate cancer. RNA-seq data analysis suggests that FOXB2/WNT7B expression in prostate cancer is associated with a transcriptional program that favors neuronal differentiation and decreases recurrence-free survival. Consistently, FOXB2 controls Wnt signaling and neuroendocrine differentiation of prostate cancer cell lines. Our results suggest that FOXB2 is a tissue-specific Wnt activator that promotes the malignant transformation of prostate cancer.
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19
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Braadland PR, Ramberg H, Grytli HH, Urbanucci A, Nielsen HK, Guldvik IJ, Engedal A, Ketola K, Wang W, Svindland A, Mills IG, Bjartell A, Taskén KA. The β 2-Adrenergic Receptor Is a Molecular Switch for Neuroendocrine Transdifferentiation of Prostate Cancer Cells. Mol Cancer Res 2019; 17:2154-2168. [PMID: 31395667 DOI: 10.1158/1541-7786.mcr-18-0605] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 04/25/2019] [Accepted: 08/06/2019] [Indexed: 11/16/2022]
Abstract
The incidence of treatment-related neuroendocrine prostate cancer (t-NEPC) is rising as more potent drugs targeting the androgen signaling axis are clinically implemented. Neuroendocrine transdifferentiation (NEtD), an putative initial step in t-NEPC development, is induced by androgen-deprivation therapy (ADT) or anti-androgens, and by activation of the β2-adrenergic receptor (ADRB2) in prostate cancer cell lines. Thus, understanding whether ADRB2 is involved in ADT-initiated NEtD may assist in developing treatment strategies that can prevent or reverse t-NEPC emergence, thereby prolonging therapeutic responses. Here we found that in primary, treatment-naïve prostate cancers, ADRB2 mRNA was positively correlated with expression of luminal differentiation markers, and ADRB2 protein levels were inversely correlated with Gleason grade. ADRB2 mRNA was upregulated in metastatic prostate cancer, and progressively downregulated during ADT and t-NEPC emergence. In androgen-deprivated medium, high ADRB2 was required for LNCaP cells to undergo NEtD, measured as increased neurite outgrowth and expression of neuron differentiation and neuroendocrine genes. ADRB2 overexpression induced a neuroendocrine-like morphology in both androgen receptor (AR)-positive and -negative prostate cancer cell lines. ADRB2 downregulation in LNCaP cells increased canonical Wnt signaling, and GSK3α/β inhibition reduced the expression of neuron differentiation and neuroendocrine genes. In LNCaP xenografts, more pronounced castration-induced NEtD was observed in tumors derived from high than low ADRB2 cells. In conclusion, high ADRB2 expression is required for ADT-induced NEtD, characterized by ADRB2 downregulation and t-NEPC emergence. IMPLICATIONS: This data suggest a potential application of β-blockers to prevent cancer cells committed to a neuroendocrine lineage from evolving into t-NEPC.
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Affiliation(s)
- Peder R Braadland
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Håkon Ramberg
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Helene Hartvedt Grytli
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Alfonso Urbanucci
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.,Centre for Molecular Medicine Norway, Nordic EMBL Partnership, University of Oslo, Oslo, Norway.,Department of Core Facilities, Institute of Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Heidi Kristin Nielsen
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Ingrid Jenny Guldvik
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Andreas Engedal
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Kirsi Ketola
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Wanzhong Wang
- Clinical Pathology/Cytology, Karolinska University Hospital, Stockholm, Sweden
| | - Aud Svindland
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - Ian G Mills
- Centre for Molecular Medicine Norway, Nordic EMBL Partnership, University of Oslo, Oslo, Norway.,Movember FASTMAN Centre of Excellence, Centre for Cancer Research & Cell Biology, Queen's University Belfast, Belfast, United Kingdom.,Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - Anders Bjartell
- Department of Urology, Skåne University Hospital, Malmö, Sweden.,Department of Translational Medicine, Division of Urological Cancers, Lund University, Malmø, Sweden
| | - Kristin Austlid Taskén
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway. .,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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20
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Sekino Y, Oue N, Mukai S, Shigematsu Y, Goto K, Sakamoto N, Sentani K, Hayashi T, Teishima J, Matsubara A, Yasui W. Protocadherin B9 promotes resistance to bicalutamide and is associated with the survival of prostate cancer patients. Prostate 2019; 79:234-242. [PMID: 30324761 DOI: 10.1002/pros.23728] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 09/27/2018] [Indexed: 12/20/2022]
Abstract
Background Prostate cancer (PCa) is a common malignancy worldwide and is the second leading cause of cancer death in men. The standard therapy for advanced PCa is androgen deprivation therapy (ADT). Although ADT, including bicalutamide treatment, is initially effective, resistance to bicalutamide frequently occurs and leads to the development of castration-resistant PCa. Thus, clarifying the mechanisms of bicalutamide resistance is urgently needed. We designed this study to assess the expression and function of PCDHB9, which encodes the protocadherin B9 protein. Methods The expression of PCDHB9 was determined using immunohistochemistry and a qRT-PCR. The effects of the overexpression or knockdown of PCDHB9 on cell growth, migration, adhesion were evaluated. To evaluate the PCDHB9-mediated effects in PCa, we performed a gene expression analysis using DU145 transfected with PCDHB9. We examined the effects of PCDHB9 inhibition on bicalutamide resistance. Results The qRT-PCR revealed that the expression of PCDHB9 was much higher in PCa than that in non-neoplastic prostate tissues. In 152 clinically localized PCa cases immunohistochemistry showed that 59% of PCa cases were positive for protocadherin B9. A Kaplan-Meier analysis showed that the high expression of protocadherin B9 was associated with PSA recurrence after radical prostatectomy. A functional analysis showed that PCDHB9 modulated cell migration and adhesion. We also found that PCDHB9 induced the expression of ITGB6 based on a gene expression analysis. The effect of PCDHB9 inhibition on bicalutamide sensitivity was examined using MTT assays. The IC50 value of PCDHB9 siRNA-transfected PCa cells was significantly lower than that of negative control siRNA-transfected cells. Furthermore, immunohistochemical staining of protocadherin B9 in 74 PCa patients who were treated with androgen depletion therapy, including bicalutamide treatment, demonstrated that the high expression of protocadherin B9 was significantly associated with poor overall survival. Conclusions PCDHB9 plays an important role in the progression of PCa and bicalutamide resistance. Collectively, our results suggest that PCDHB9 targeted therapy may be more effective than bicalutamide alone.
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Affiliation(s)
- Yohei Sekino
- Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
- Department of Urology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Naohide Oue
- Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Shoichiro Mukai
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Graduate School of Biomedical and Health Sciences, Minami-ku, Hiroshima, Japan
| | - Yoshinori Shigematsu
- Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
- Department of Urology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Keisuke Goto
- Department of Urology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
- Cancer Biology Program, University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Naoya Sakamoto
- Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Kazuhiro Sentani
- Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Tetsutaro Hayashi
- Department of Urology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Jun Teishima
- Department of Urology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Akio Matsubara
- Department of Urology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Wataru Yasui
- Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
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21
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Wnt/Beta-Catenin Signaling and Prostate Cancer Therapy Resistance. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1210:351-378. [PMID: 31900917 DOI: 10.1007/978-3-030-32656-2_16] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Metastatic or locally advanced prostate cancer (PCa) is typically treated with androgen deprivation therapy (ADT). Initially, PCa responds to the treatment and regresses. However, PCa almost always develops resistance to androgen deprivation and progresses to castrate-resistant prostate cancer (CRPCa), a currently incurable form of PCa. Wnt/β-Catenin signaling is frequently activated in late stage PCa and contributes to the development of therapy resistance. Although activating mutations in the Wnt/β-Catenin pathway are not common in primary PCa, this signaling cascade can be activated through other mechanisms in late stage PCa, including cross talk with other signaling pathways, growth factors and cytokines produced by the damaged tumor microenvironment, release of the co-activator β-Catenin from sequestration after inhibition of androgen receptor (AR) signaling, altered expression of Wnt ligands and factors that modulate the Wnt signaling, and therapy-induced cellular senescence. Research from genetically engineered mouse models indicates that activation of Wnt/β-Catenin signaling in the prostate is oncogenic, enables castrate-resistant PCa growth, induces an epithelial-to-mesenchymal transition (EMT), promotes neuroendocrine (NE) differentiation, and confers stem cell-like features to PCa cells. These important roles of Wnt/β-Catenin signaling in PCa progression underscore the need for the development of drugs targeting this pathway to treat therapy-resistant PCa.
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22
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Sarkar PL, Lee W, Williams ED, Lubik AA, Stylianou N, Shokoohmand A, Lehman ML, Hollier BG, Gunter JH, Nelson CC. Insulin Enhances Migration and Invasion in Prostate Cancer Cells by Up-Regulation of FOXC2. Front Endocrinol (Lausanne) 2019; 10:481. [PMID: 31379747 PMCID: PMC6652804 DOI: 10.3389/fendo.2019.00481] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 07/03/2019] [Indexed: 12/28/2022] Open
Abstract
Androgen deprivation therapy (ADT) is the standard treatment for advanced prostate cancer (PCa), yet many patients relapse with lethal metastatic disease. With this loss of androgens, increased cell plasticity has been observed as an adaptive response to ADT. This includes gain of invasive and migratory capabilities, which may contribute to PCa metastasis. Hyperinsulinemia, which develops as a side-effect of ADT, has been associated with increased tumor aggressiveness and faster treatment failure. We investigated the direct effects of insulin in PCa cells that may contribute to this progression. We measured cell migration and invasion induced by insulin using wound healing and transwell assays in a range of PCa cell lines of variable androgen dependency (LNCaP, 22RV1, DuCaP, and DU145 cell lines). To determine the molecular events driving insulin-induced invasion we used transcriptomics, quantitative real time-PCR, and immunoblotting in three PCa cell lines. Insulin increased invasiveness of PCa cells, upregulating Forkhead Box Protein C2 (FOXC2), and activating key PCa cell plasticity mechanisms including gene changes consistent with epithelial-to-mesenchymal transition (EMT) and a neuroendocrine phenotype. Additionally, analysis of publicly available clinical PCa tumor data showed metastatic prostate tumors demonstrate a positive correlation between insulin receptor expression and the EMT transcription factor FOXC2. The insulin receptor is not suitable to target clinically however, our data shows that actions of insulin in PCa cells may be suppressed by inhibiting downstream signaling molecules, PI3K and ERK1/2. This study identifies for the first time, a mechanism for insulin-driven cancer cell motility and supports the concept that targeting insulin signaling at the level of the PCa tumor may extend the therapeutic efficacy of ADT.
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Affiliation(s)
- Phoebe L. Sarkar
- Queensland University of Technology (QUT), Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD, Australia
| | - Wendy Lee
- Queensland University of Technology (QUT), Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD, Australia
| | - Elizabeth D. Williams
- Queensland University of Technology (QUT), Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD, Australia
| | - Amy A. Lubik
- Vancouver Prostate Centre, Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Nataly Stylianou
- Queensland University of Technology (QUT), Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD, Australia
| | - Ali Shokoohmand
- Queensland University of Technology (QUT), Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD, Australia
| | - Melanie L. Lehman
- Queensland University of Technology (QUT), Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD, Australia
- Vancouver Prostate Centre, Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Brett G. Hollier
- Queensland University of Technology (QUT), Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD, Australia
| | - Jennifer H. Gunter
- Queensland University of Technology (QUT), Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD, Australia
- *Correspondence: Jennifer H. Gunter
| | - Colleen C. Nelson
- Queensland University of Technology (QUT), Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD, Australia
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23
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Robbins CJ, Bou-Dargham MJ, Sanchez K, Rosen MC, Sang QXA. Decoding Somatic Driver Gene Mutations and Affected Signaling Pathways in Human Medulloblastoma Subgroups. J Cancer 2018; 9:4596-4610. [PMID: 30588243 PMCID: PMC6299398 DOI: 10.7150/jca.27993] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 09/08/2018] [Indexed: 01/02/2023] Open
Abstract
Medulloblastoma is the most common malignant pediatric brain tumor. Prior studies have concentrated their efforts studying the four molecular subgroups: SHH, Wnt, group 3, and group 4. SHH and Wnt are driven by their canonical pathways. Groups 3 and 4 are highly metastatic and associated with aberrations in epigenetic regulators. Recent developments in the field have revealed that these subgroups are not as homogenous as previously believed. The objective of this study is to investigate the involvement of somatic driver gene mutations in these medulloblastoma subgroups. We obtained medulloblastoma data from the Catalogue of Somatic Mutations in Cancer (COSMIC), which contains distinct samples that were not previously studied in a large cohort. We identified somatic driver gene mutations and the signaling pathways affected by these driver genes for medulloblastoma subgroups using bioinformatics tools. We have revealed novel infrequent drivers in these subgroups that contribute to our understanding of tumor heterogeneity in medulloblastoma. Normally SHH signaling is activated in the SHH subgroup, however, we determined gain-of-function mutations in ubiquitin ligase (CUL1) that inhibit Gli-mediated transcription. This suggests a potential hindrance in SHH signaling for some patients. For group 3, gain-of-function in the inhibitor of proinflammatory cytokines (HIVEP3) suggests an immunosuppressive phenotype and thus a more hostile tumor microenvironment. Surprisingly, group 4 tumors possess mutations that may prompt the activation of Wnt signaling through gain-of-function mutations in MUC16 and PCDH9. These infrequent mutations detected in this study could be due to subclonal or spatially restricted alterations. The investigation of aberrant driver gene mutations can lead to the identification of new drug targets and a greater understanding of human medulloblastoma heterogeneity.
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Affiliation(s)
- Charles J Robbins
- Department of Chemistry & Biochemistry, Institute of Molecular Biophysics, Florida State University
| | - Mayassa J Bou-Dargham
- Department of Chemistry & Biochemistry, Institute of Molecular Biophysics, Florida State University
| | - Kevin Sanchez
- Department of Chemistry & Biochemistry, Institute of Molecular Biophysics, Florida State University
| | - Matthew C Rosen
- Department of Chemistry & Biochemistry, Institute of Molecular Biophysics, Florida State University
| | - Qing-Xiang Amy Sang
- Department of Chemistry & Biochemistry, Institute of Molecular Biophysics, Florida State University
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24
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Zhou X, Padanad MS, Evers BM, Smith B, Novaresi N, Suresh S, Richardson JA, Stein E, Zhu J, Hammer RE, O'Donnell KA. Modulation of Mutant KrasG12D -Driven Lung Tumorigenesis In Vivo by Gain or Loss of PCDH7 Function. Mol Cancer Res 2018; 17:594-603. [PMID: 30409919 DOI: 10.1158/1541-7786.mcr-18-0739] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/26/2018] [Accepted: 10/30/2018] [Indexed: 12/21/2022]
Abstract
PROTOCADHERIN 7 (PCDH7), a transmembrane receptor and member of the Cadherin superfamily, is frequently overexpressed in lung adenocarcinoma and is associated with poor clinical outcome. Although PCDH7 was recently shown to promote transformation and facilitate brain metastasis in lung and breast cancers, decreased PCDH7 expression has also been documented in colorectal, gastric, and invasive bladder cancers. These data suggest context-dependent functions for PCDH7 in distinct tumor types. Given that PCDH7 is a potentially targetable molecule on the surface of cancer cells, further investigation of its role in tumorigenesis in vivo is needed to evaluate the therapeutic potential of its inhibition. Here, we report the analysis of novel PCDH7 gain- and loss-of-function mouse models and provide compelling evidence that this cell-surface protein acts as a potent lung cancer driver. Employing a Cre-inducible transgenic allele, we demonstrated that enforced PCDH7 expression significantly accelerates KrasG12D -driven lung tumorigenesis and potentiates MAPK pathway activation. Furthermore, we performed in vivo somatic genome editing with CRISPR/Cas9 in KrasLSL-G12D ; Tp53fl/fl (KP) mice to assess the consequences of PCDH7 loss of function. Inactivation of PCDH7 in KP mice significantly reduced lung tumor development, prolonged survival, and diminished phospho-activation of ERK1/2. Together, these findings establish a critical oncogenic function for PCDH7 in vivo and highlight the therapeutic potential of PCDH7 inhibition for lung cancer. Moreover, given recent reports of elevated or reduced PCDH7 in distinct tumor types, the new inducible transgenic model described here provides a robust experimental system for broadly elucidating the effects of PCDH7 overexpression in vivo. IMPLICATIONS: In this study, we establish a critical oncogenic function for PCDH7 in vivo using novel mouse models and CRISPR/Cas9 genome editing, and we validate the therapeutic potential of PCDH7 inhibition for lung cancer.
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Affiliation(s)
- Xiaorong Zhou
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas.,Department of Immunology, Nantong University School of Medicine, Nantong, China
| | - Mahesh S Padanad
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas
| | - Bret M Evers
- Department of Pathology, UT Southwestern Medical Center, Dallas, Texas
| | - Bethany Smith
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas
| | - Nicole Novaresi
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas
| | - Shruthy Suresh
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas
| | - James A Richardson
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas.,Department of Pathology, UT Southwestern Medical Center, Dallas, Texas
| | - Emily Stein
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas
| | - Jingfei Zhu
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas
| | - Robert E Hammer
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, Texas
| | - Kathryn A O'Donnell
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas. .,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas.,Hamon Center for Regenerative Science and Medicine, UT Southwestern Medical Center, Dallas, Texas
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25
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Androgen receptor suppresses prostate cancer cell invasion via altering the miR-4496/β-catenin signals. Biochem Biophys Res Commun 2018; 504:82-88. [PMID: 30177389 DOI: 10.1016/j.bbrc.2018.08.134] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 08/22/2018] [Indexed: 12/12/2022]
Abstract
Previous study found that AR in prostate may act as both a proliferator and a suppressor to promote or suppress the metastasis of prostate cancer (PCa). In current work, we demonstrated that AR could suppress PCa cell invasion through altering the miR-4496/β-catenin signals. And mechanisms dissection found that AR could negatively regulate the expression of β-catenin through enhancing the miR-4496 expression via directly binding to the AR-response-elements (AREs) of miR-4496 promoter, subsequently, the miRNA could directly target the 3' UTR of the β-catenin-mRNA to reduce its expression. To conclude, our work suggests that AR might play an important role to suppress PCa cell invasion, targeting the newly identified AR/miR-4496/β-catenin signaling with small molecules may help us to build up new therapeutic approaches to better suppress the metastasis of PCa.
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26
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Fue M, Miki Y, Takagi K, Hashimoto C, Yaegashi N, Suzuki T, Ito K. Relaxin 2/RXFP1 Signaling Induces Cell Invasion via the β-Catenin Pathway in Endometrial Cancer. Int J Mol Sci 2018; 19:ijms19082438. [PMID: 30126180 PMCID: PMC6121407 DOI: 10.3390/ijms19082438] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 08/15/2018] [Accepted: 08/17/2018] [Indexed: 12/20/2022] Open
Abstract
Relaxin is known to play an important role in animal pregnancies, including those of humans. It is suggested that relaxin induces aggressive cell growth and invasiveness in several types of cancer, including endometrial cancer. However, the mechanisms of relaxin remain largely unclear. In this study, we examined the effects of relaxin 2 (RLN2), the major circulating relaxin in humans, on human endometrial carcinoma cell lines. RLN2 treatment induced invasion in HEC-1B and Ishikawa cells. RLN2-induced cell invasion was significantly decreased by transfection of relaxin receptor 1 (RXFP1) siRNAs. The β-catenin inhibitor, XAV939, also significantly inhibited the RLN2-induced cell invasions. Both a decrease of cadherin expression and an increase of β-catenin phosphorylation were observed in response to the RLN2 treatment in HEC-1B and Ishikawa cells. We then examined RLN2 and RXFP1 expression in 80 human endometrioid endometrial carcinoma tissues. RLN2 immunoreactivity was detected in the human endometrial carcinoma cells and had a correlative tendency with histological grade and RXFP1. These results suggest that adherens junctions in cancer cells are weakened by the breakdown of the cadherin/catenin complex, which is induced by β-catenin phosphorylation via RLN2/RXFP1 signaling.
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Affiliation(s)
- Misaki Fue
- Department of Disaster Obstetrics and Gynecology, International Research Institute of Disaster Science (IRIDeS), Tohoku University, Sendai 980-8575, Japan.
| | - Yasuhiro Miki
- Department of Disaster Obstetrics and Gynecology, International Research Institute of Disaster Science (IRIDeS), Tohoku University, Sendai 980-8575, Japan.
| | - Kiyoshi Takagi
- Department of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Chiaki Hashimoto
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Takashi Suzuki
- Department of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Kiyoshi Ito
- Department of Disaster Obstetrics and Gynecology, International Research Institute of Disaster Science (IRIDeS), Tohoku University, Sendai 980-8575, Japan.
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27
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Soundararajan R, Paranjape AN, Maity S, Aparicio A, Mani SA. EMT, stemness and tumor plasticity in aggressive variant neuroendocrine prostate cancers. Biochim Biophys Acta Rev Cancer 2018; 1870:229-238. [PMID: 29981816 DOI: 10.1016/j.bbcan.2018.06.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/27/2018] [Accepted: 06/28/2018] [Indexed: 12/25/2022]
Abstract
Neuroendocrine/Aggressive Variant Prostate Cancers are lethal variants of the disease, with an aggressive clinical course and very short responses to conventional therapy. The age-adjusted incidence rate for this tumor sub-type has steadily increased over the past 20 years in the United States, with no reduction in the associated mortality rate. The molecular networks fueling its emergence and sustenance are still obscure; however, many factors have been associated with the onset and progression of neuroendocrine differentiation in clinically typical adenocarcinomas including loss of androgen-receptor expression and/or signaling, conventional therapy, and dysregulated cytokine function. "Tumor-plasticity" and the ability to dedifferentiate into alternate cell lineages are central to this process. Epithelial-to-mesenchymal (EMT) signaling pathways are major promoters of stem-cell properties in prostate tumor cells. In this review, we examine the contributions of EMT-induced cellular-plasticity and stem-cell signaling pathways to the progression of Neuroendocrine/Aggressive Variant Prostate Cancers in the light of potential therapeutic opportunities.
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Affiliation(s)
- Rama Soundararajan
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| | - Anurag N Paranjape
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sankar Maity
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ana Aparicio
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Sendurai A Mani
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Metastasis Research Center, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Center for Stem Cell and Developmental Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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28
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Williams KA, Lee M, Winter JM, Gildea DE, Calagua C, Curry NL, Lichtenberg J, Ye H, Crawford NPS. Prostate cancer susceptibility gene HIST1H1A is a modulator of androgen receptor signaling and epithelial to mesenchymal transition. Oncotarget 2018; 9:28532-28546. [PMID: 29983878 PMCID: PMC6033342 DOI: 10.18632/oncotarget.25536] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 05/01/2018] [Indexed: 01/27/2023] Open
Abstract
In 2018, approximately 165,000 new prostate cancer (PC) cases will be diagnosed, and over 29,000 men will succumb to PC in the U.S. alone. The means of assessing outcome in the clinic are inaccurate, and there is a pressing need to more precisely identify men at risk of aggressive PC. We previously identified HIST1H1A as a susceptibility gene for aggressive PC. HIST1H1A encodes H1.1, a member of the linker histone family that is involved in chromatin organization and compaction. To understand the molecular basis of aggressive PC, we have characterized how germline variation modulates susceptibility to neuroendocrine differentiation, which is a form of aggressive PC. Immunohistochemistry studies revealed that HIST1H1A is over-expressed in normal human prostate tissue compared to prostate adenocarcinoma. Functional characterization of HIST1H1A in prostate LNCaP cells indicated that HIST1HA over-expression increased cell growth, as well as the expression of neuroendocrine and epithelial-to-mesenchymal markers in vitro. Assay for Transposase-Accessible Chromatin (ATAC-seq), which is used to assess chromatin compaction and thus the transcriptional availability of individual genomic regions, demonstrated that H1.1 plays a prominent role in modulating Wnt signaling pathway genes, which are implicated in prostate tumorigenesis. These results demonstrate that HIST1H1A is a modulator of aggressive PC susceptibility.
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Affiliation(s)
- Kendra A Williams
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Minnkyong Lee
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jean M Winter
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Derek E Gildea
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Carla Calagua
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Natasha L Curry
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jens Lichtenberg
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Huihui Ye
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Nigel P S Crawford
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA.,Current address: Sanofi, Bridgewater, New Jersey, USA
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29
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Nam RK, Benatar T, Amemiya Y, Wallis CJ, Romero JM, Tsagaris M, Sherman C, Sugar L, Seth A. MicroRNA-652 induces NED in LNCaP and EMT in PC3 prostate cancer cells. Oncotarget 2018; 9:19159-19176. [PMID: 29721191 PMCID: PMC5922385 DOI: 10.18632/oncotarget.24937] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 03/06/2018] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs (miRNAs) are small noncoding RNA molecules that post-transcriptionally regulate gene expression. Dysregulation of miRNAs is frequently associated with disease and, in particular, is involved in prostate cancer progression. Next generation miRNA sequencing identified a panel of five miRNAs associated with prostate cancer recurrence and metastasis. High expression of one of these five miRNAs, miR-652, correlated significantly with an increased rate of prostate cancer biochemical recurrence. Overexpression of miR-652 in prostate cancer cells, PC3 and LNCaP, resulted in increased growth, migration and invasion. Prostate cancer cell xenografts overexpressing miR-652 showed increased tumorigenicity and metastases. We found that miR-652 directly targets the B" regulatory subunit, PPP2R3A, of the tumor suppressor PP2A, inducing epithelial-mesenchymal transition (EMT) in PC3 cells and neuroendocrine-like differentiation (NED) in LNCaP cells. The mesenchymal marker N-cadherin increased and epithelial marker E-cadherin decreased in PC3 cells overexpressing miR-652. In LNCaP cells and xenografted tumors, overexpression of miR-652 increased markers of NED, including chromogranin A, neuron specific enolase, and synaptophysin. MiR-652 may contribute to prostate tumor progression by promoting NED through decreased PP2A function. MiR-652 expression could serve as a biomarker for aggressive prostate cancer, as well as provide an opportunity for novel therapy in prostate cancer.
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Affiliation(s)
- Robert K. Nam
- 1 Division of Urology, Sunnybrook Health Sciences Centre, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
| | - Tania Benatar
- 2 Platform Biological Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Yutaka Amemiya
- 3 Genomics Facility, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Christopher J.D. Wallis
- 1 Division of Urology, Sunnybrook Health Sciences Centre, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
| | - Joan Miguel Romero
- 2 Platform Biological Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Melina Tsagaris
- 2 Platform Biological Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Christopher Sherman
- 4 Department of Anatomic Pathology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- 5 Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Linda Sugar
- 4 Department of Anatomic Pathology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- 5 Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Arun Seth
- 2 Platform Biological Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
- 3 Genomics Facility, Sunnybrook Research Institute, Toronto, ON, Canada
- 4 Department of Anatomic Pathology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- 5 Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
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30
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Wang C, Peng G, Huang H, Liu F, Kong DP, Dong KQ, Dai LH, Zhou Z, Wang KJ, Yang J, Cheng YQ, Gao X, Qu M, Wang HR, Zhu F, Tian QQ, Liu D, Cao L, Cui XG, Xu CL, Xu DF, Sun YH. Blocking the Feedback Loop between Neuroendocrine Differentiation and Macrophages Improves the Therapeutic Effects of Enzalutamide (MDV3100) on Prostate Cancer. Clin Cancer Res 2017; 24:708-723. [PMID: 29191973 DOI: 10.1158/1078-0432.ccr-17-2446] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/22/2017] [Accepted: 11/20/2017] [Indexed: 11/16/2022]
Affiliation(s)
- Chao Wang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Guang Peng
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hai Huang
- Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Fei Liu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - De-Pei Kong
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Ke-Qin Dong
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Li-He Dai
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhe Zhou
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Kai-Jian Wang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Jun Yang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yan-Qiong Cheng
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xu Gao
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Min Qu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hong-Ru Wang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Feng Zhu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Qin-Qin Tian
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Dan Liu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Li Cao
- Institute of Neuroscience and Key Laboratory of Molecular Neurobiology of the Ministry of Education, Second Military Medical University, Shanghai, China
| | - Xin-Gang Cui
- Department of Urinary Surgery, Third Affiliated Hospital, Second Military Medical University, Shanghai, China
| | - Chuan-Liang Xu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Dan-Feng Xu
- Department of Urinary Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Ying-Hao Sun
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China.
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31
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Kanayama M, Hayano T, Koebis M, Maeda T, Tabe Y, Horie S, Aiba A. Hyperactive mTOR induces neuroendocrine differentiation in prostate cancer cell with concurrent up-regulation of IRF1. Prostate 2017; 77:1489-1498. [PMID: 28905415 DOI: 10.1002/pros.23425] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 08/23/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND Neuroendocrine-differentiated prostate cancer (NEPCa) is refractory to androgen deprivation therapy and shows a poor prognosis. The underlying mechanisms responsible for neuroendocrine differentiation (NED) are yet to be clarified. In this study, we investigated the role of mammalian target of rapamycin (mTOR) in NEPCa. METHODS We utilized a gain-of-function analysis by establishing a human PCa LNCaP stable line that expresses hyperactive mTOR (LNCaP-mTOR). Then, we employed a comprehensive mass spectrometric analysis to identify a key transcription factor in LNCaP-mTOR, followed by a loss-of-function analysis using CRISPR/Cas system. RESULTS The activation of mTOR induced NED. We observed significant cell growth arrest in NED of LNCaP-mTOR, which accompanied increased expression of p21WAF1/CIP1 . A comprehensive mass spectrometric analysis identified interferon regulatory factor 1 (IRF1) as a key transcription factor in growth arrest of LNCaP-mTOR. The disruption of IRF1 gene in LNCaP-mTOR reversed cell growth arrest along with the suppression of its target p21WAF1/CIP1 . These results indicate that the growth arrest in NED is at least in part dependent on IRF1 through the induction of p21WAF1/CIP1 . CONCLUSIONS We identified active mTOR as a novel inducer of NED, and elucidated a mechanism underlying the malignant transformation of NEPCa by recapitulating NED in vitro.
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Affiliation(s)
- Mayuko Kanayama
- Department of Urology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Laboratory of Animal Resources, Center for Disease Biology and Integrated Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toshiya Hayano
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Shiga, Japan
| | - Michinori Koebis
- Laboratory of Animal Resources, Center for Disease Biology and Integrated Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tatsuya Maeda
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, Tokyo, Japan
| | - Yoko Tabe
- Department of Clinical Laboratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shigeo Horie
- Department of Urology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Atsu Aiba
- Laboratory of Animal Resources, Center for Disease Biology and Integrated Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Mah KM, Weiner JA. Regulation of Wnt signaling by protocadherins. Semin Cell Dev Biol 2017; 69:158-171. [PMID: 28774578 PMCID: PMC5586504 DOI: 10.1016/j.semcdb.2017.07.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 07/21/2017] [Accepted: 07/28/2017] [Indexed: 12/23/2022]
Abstract
The ∼70 protocadherins comprise the largest group within the cadherin superfamily. Their diversity, the complexity of the mechanisms through which their genes are regulated, and their many critical functions in nervous system development have engendered a growing interest in elucidating the intracellular signaling pathways through which they act. Recently, multiple protocadherins across several subfamilies have been implicated as modulators of Wnt signaling pathways, and through this as potential tumor suppressors. Here, we review the extant data on the regulation by protocadherins of Wnt signaling pathways and components, and highlight some key unanswered questions that could shape future research.
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Affiliation(s)
- Kar Men Mah
- Department of Biology, The University of Iowa, Iowa City, IA, USA.
| | - Joshua A Weiner
- Department of Biology, The University of Iowa, Iowa City, IA, USA; Department of Psychiatry, The University of Iowa, Iowa City, IA, USA; Iowa Neuroscience Institute, The University of Iowa, Iowa City, IA, USA.
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Zhong X, Shen H, Mao J, Zhang J, Han W. Epigenetic silencing of protocadherin 10 in colorectal cancer. Oncol Lett 2017; 13:2449-2453. [PMID: 28454418 PMCID: PMC5403191 DOI: 10.3892/ol.2017.5733] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 12/20/2016] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common types of malignant tumor in the world and occurs through a multi-step process resulting from the accumulation of genetic and epigenetic alterations of the genome. Although the molecular mechanisms of the pathogenesis of CRC remain unclear, the inactivation of tumor suppressor genes (TSGs) through promoter methylation serves an important role. Aberrant methylation is a well-defined marker of CRC. At present, the epigenetic silencing of protocadherin 10 (PCDH10) has been identified as an important TSG with key roles in colorectal carcinogenesis, invasion and metastasis as a frequent and early event. Advances in gene methylation detection in tumor tissues and body fluids have led to the development of non-invasive screening methods for CRC. The present study aimed to review the epigenetic alteration of PCDH10 in CRC development, and the potential of PCDH10 to be a non-invasive biomarker for CRC.
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Affiliation(s)
- Xian Zhong
- Department of Medical Oncology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
- Department of Medical Oncology, Hangzhou Binjiang Hospital, Hangzhou, Zhejiang 310052, P.R. China
| | - Hong Shen
- Department of Medical Oncology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Jianshan Mao
- Department of Gastroenterology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Jiawei Zhang
- Cancer Institute, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Weidong Han
- Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
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Yadav SS, Li J, Stockert JA, Herzog B, O'Connor J, Garzon-Manco L, Parsons R, Tewari AK, Yadav KK. Induction of Neuroendocrine Differentiation in Prostate Cancer Cells by Dovitinib (TKI-258) and its Therapeutic Implications. Transl Oncol 2017; 10:357-366. [PMID: 28342996 PMCID: PMC5369368 DOI: 10.1016/j.tranon.2017.01.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 01/31/2017] [Indexed: 12/16/2022] Open
Abstract
Prostate cancer (PCa) remains the second-leading cause of cancer-related deaths in American men with an estimated mortality of more than 26,000 in 2016 alone. Aggressive and metastatic tumors are treated with androgen deprivation therapies (ADT); however, the tumors acquire resistance and develop into lethal castration resistant prostate cancer (CRPC). With the advent of better therapeutics, the incidences of a more aggressive neuroendocrine prostate cancer (NEPC) variant continue to emerge. Although de novo occurrences of NEPC are rare, more than 25% of the therapy-resistant patients on highly potent new-generation anti-androgen therapies end up with NEPC. This, along with previous observations of an increase in the number of such NE cells in aggressive tumors, has been suggested as a mechanism of resistance development during prostate cancer progression. Dovitinib (TKI-258/CHIR-258) is a pan receptor tyrosine kinase (RTK) inhibitor that targets VEGFR, FGFR, PDGFR, and KIT. It has shown efficacy in mouse-model of PCa bone metastasis, and is presently in clinical trials for several cancers. We observed that both androgen receptor (AR) positive and AR-negative PCa cells differentiate into a NE phenotype upon treatment with Dovitinib. The NE differentiation was also observed when mice harboring PC3-xenografted tumors were systemically treated with Dovitinib. The mechanistic underpinnings of this differentiation are unclear, but seem to be supported through MAPK-, PI3K-, and Wnt-signaling pathways. Further elucidation of the differentiation process will enable the identification of alternative salvage or combination therapies to overcome the potential resistance development.
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Affiliation(s)
- Shalini S Yadav
- Department of Urology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029-6574
| | - Jinyi Li
- Department of Urology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029-6574
| | - Jennifer A Stockert
- Department of Urology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029-6574
| | - Bryan Herzog
- Department of Urology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029-6574
| | - James O'Connor
- Department of Urology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029-6574
| | - Luis Garzon-Manco
- Department of Urology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029-6574
| | - Ramon Parsons
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029-6574
| | - Ashutosh K Tewari
- Department of Urology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029-6574
| | - Kamlesh K Yadav
- Department of Urology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029-6574.
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Germline BRCA2 mutations drive prostate cancers with distinct evolutionary trajectories. Nat Commun 2017; 8:13671. [PMID: 28067867 PMCID: PMC5227331 DOI: 10.1038/ncomms13671] [Citation(s) in RCA: 164] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 10/20/2016] [Indexed: 12/12/2022] Open
Abstract
Germline mutations in the BRCA2 tumour suppressor are associated with both an increased lifetime risk of developing prostate cancer (PCa) and increased risk of aggressive disease. To understand this aggression, here we profile the genomes and methylomes of localized PCa from 14 carriers of deleterious germline BRCA2 mutations (BRCA2-mutant PCa). We show that BRCA2-mutant PCa harbour increased genomic instability and a mutational profile that more closely resembles metastastic than localized disease. BRCA2-mutant PCa shows genomic and epigenomic dysregulation of the MED12L/MED12 axis, which is frequently dysregulated in metastatic castration-resistant prostate cancer (mCRPC). This dysregulation is enriched in BRCA2-mutant PCa harbouring intraductal carcinoma (IDC). Microdissection and sequencing of IDC and juxtaposed adjacent non-IDC invasive carcinoma in 10 patients demonstrates a common ancestor to both histopathologies. Overall we show that localized castration-sensitive BRCA2-mutant tumours are uniquely aggressive, due to de novo aberration in genes usually associated with metastatic disease, justifying aggressive initial treatment.
Men that carrier BRCA2 germline mutations are at risk of developing prostate cancer. Here, the authors analyse the genomes of prostate cancer from these individuals and demonstrate increased genomic instability in comparison to sporadic prostate cancer.
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Zhou X, Updegraff BL, Guo Y, Peyton M, Girard L, Larsen JE, Xie XJ, Zhou Y, Hwang TH, Xie Y, Rodriguez-Canales J, Villalobos P, Behrens C, Wistuba II, Minna JD, O'Donnell KA. PROTOCADHERIN 7 Acts through SET and PP2A to Potentiate MAPK Signaling by EGFR and KRAS during Lung Tumorigenesis. Cancer Res 2016; 77:187-197. [PMID: 27821484 DOI: 10.1158/0008-5472.can-16-1267-t] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 10/11/2016] [Accepted: 10/23/2016] [Indexed: 12/14/2022]
Abstract
Non-small cell lung cancer (NSCLC) is the leading cause of cancer-associated deaths worldwide. Given the efficacy of membrane proteins as therapeutic targets in human malignancies, we examined cell-surface receptors that may act as drivers of lung tumorigenesis. Here, we report that the PROTOCADHERIN PCDH7 is overexpressed frequently in NSCLC tumors where this event is associated with poor clinical outcome. PCDH7 overexpression synergized with EGFR and KRAS to induce MAPK signaling and tumorigenesis. Conversely, PCDH7 depletion suppressed ERK activation, sensitized cells to MEK inhibitors, and reduced tumor growth. PCDH7 potentiated ERK signaling by facilitating interaction of protein phosphatase PP2A with its potent inhibitor, the SET oncoprotein. By establishing an oncogenic role for PCDH7 in lung tumorigenesis, our results provide a rationale to develop novel PCDH7 targeting therapies that act at the cell surface of NSCLC cells to compromise their growth. Cancer Res; 77(1); 187-97. ©2016 AACR.
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Affiliation(s)
- Xiaorong Zhou
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas.,Department of Immunology, Nantong University School of Medicine, Nantong, China
| | - Barrett L Updegraff
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas
| | - Yabin Guo
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas
| | - Michael Peyton
- Hamon Center for Therapeutic Oncology Research, UT Southwestern Medical Center, Dallas, Texas
| | - Luc Girard
- Hamon Center for Therapeutic Oncology Research, UT Southwestern Medical Center, Dallas, Texas.,Department of Pharmacology, UT Southwestern Medical Center, Dallas, Texas
| | - Jill E Larsen
- Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland
| | - Xian-Jin Xie
- Department of Clinical Science, UT Southwestern Medical Center, Dallas, Texas.,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas
| | - Yunyun Zhou
- Department of Clinical Science, UT Southwestern Medical Center, Dallas, Texas
| | - Tae Hyun Hwang
- Department of Clinical Science, UT Southwestern Medical Center, Dallas, Texas
| | - Yang Xie
- Department of Clinical Science, UT Southwestern Medical Center, Dallas, Texas
| | - Jaime Rodriguez-Canales
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Pamela Villalobos
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Carmen Behrens
- Department of Thoracic Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ignacio I Wistuba
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John D Minna
- Hamon Center for Therapeutic Oncology Research, UT Southwestern Medical Center, Dallas, Texas.,Department of Pharmacology, UT Southwestern Medical Center, Dallas, Texas.,Department of Internal Medicine, UT Southwestern Medical Center, Dallas, Texas
| | - Kathryn A O'Donnell
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas. .,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas
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Farach A, Ding Y, Lee M, Creighton C, Delk NA, Ittmann M, Miles B, Rowley D, Farach-Carson MC, Ayala GE. Neuronal Trans-Differentiation in Prostate Cancer Cells. Prostate 2016; 76:1312-25. [PMID: 27403603 PMCID: PMC5815867 DOI: 10.1002/pros.23221] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 06/01/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Neuroendocrine (NE) differentiation in prostate cancer (PCa) is an aggressive phenotype associated with therapy resistance. The complete phenotype of these cells is poorly understood. Clinical classification is based predominantly on the expression of standard NE markers. METHODS We analyzed the phenotype of NE carcinoma of the prostate utilizing in vitro methods, in silico, and immunohistochemical analyses of human disease. RESULTS LNCaP cells, subjected to a variety of stressors (0.1% [v/v] fetal bovine serum, cyclic AMP) induced a reproducible phenotype consistent with neuronal trans-differentiation. Cells developed long cytoplasmic processes resembling neurons. As expected, serum deprived cells had decreased expression in androgen receptor and prostate specific antigen. A significant increase in neuronal markers also was observed. Gene array analysis demonstrated that LNCaP cells subjected to low serum or cAMP showed statistically significant manifestation of a human brain gene expression signature. In an in silico experiment using human data, we identified that only hormone resistant metastatic prostate cancer showed enrichment of the "brain profile." Gene ontology analysis demonstrated categories involved in neuronal differentiation. Three neuronal markers were validated in a large human tissue cohort. CONCLUSION This study proposes that the later stages of PCa evolution involves neuronal trans-differentiation, which would enable PCa cells to acquire independence from the neural axis, critical in primary tumors. Prostate 76:1312-1325, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Andrew Farach
- Department of Radiology, Division of Radiation Oncology, Baylor College of Medicine, Houston, TX
| | - Yi Ding
- Department of Pathology and Laboratory Medicine, University of Texas Health Science Center at Houston, Houston, TX
| | - MinJae Lee
- Center for Clinical and Translational Sciences, University of Texas Health Science Center at Houston, Houston, TX
| | - Chad Creighton
- Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Nikki A. Delk
- Department of Biochemistry and Cell Biology, MS-140, Rice University, Houston, Texas
| | - Michael Ittmann
- Department of Pathology, Baylor College of Medicine, Houston, TX
| | - Brian Miles
- Department of Urology, Houston Methodist Hospital, Houston, TX
| | - David Rowley
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, TX
| | - Mary C. Farach-Carson
- Department of Biochemistry and Cell Biology, MS-140, Rice University, Houston, Texas
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, TX
| | - Gustavo E. Ayala
- Center for Clinical and Translational Sciences, University of Texas Health Science Center at Houston, Houston, TX
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Shan M, Su Y, Kang W, Gao R, Li X, Zhang G. Aberrant expression and functions of protocadherins in human malignant tumors. Tumour Biol 2016; 37:12969-12981. [PMID: 27449047 DOI: 10.1007/s13277-016-5169-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 07/12/2016] [Indexed: 12/11/2022] Open
Abstract
Protocadherins (PCDHs) are a group of transmembrane proteins belonging to the cadherin superfamily and are subdivided into "clustered" and "non-clustered" groups. PCDHs vary in both structure and interaction partners and thus regulate multiple biological responses in complex and versatile patterns. Previous researches showed that PCDHs regulated the development of brain and were involved in some neuronal diseases. Recently, studies have revealed aberrant expression of PCDHs in various human malignant tumors. The down-regulation or absence of PCDHs in malignant cells has been associated with cancer progression. Further researches suggest that PCDHs may play major functions as tumor suppressor by inhibiting the proliferation and metastasis of cancer cells. In this review, we focus on the altered expression of PCDHs and their roles in the development of cancer progression. We also discuss the potential mechanisms, by which PCDHs are aberrantly expressed, and its implications in regulating cancers.
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Affiliation(s)
- Ming Shan
- Department of Breast Surgery, the Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Yonghui Su
- Department of Breast Surgery, the Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Wenli Kang
- Department of Oncology, General Hospital of Hei Longjiang Province Land Reclamation Headquarter, Harbin, China
| | - Ruixin Gao
- Department of Breast Surgery, The First Hospital of Qiqihaer City, Qiqihaer, China
| | - Xiaobo Li
- Department of Pathology, Harbin Medical University, Harbin, China.
| | - Guoqiang Zhang
- Department of Breast Surgery, the Affiliated Tumor Hospital of Harbin Medical University, Harbin, China.
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39
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Lopez SM, Agoulnik AI, Zhang M, Peterson LE, Suarez E, Gandarillas GA, Frolov A, Li R, Rajapakshe K, Coarfa C, Ittmann MM, Weigel NL, Agoulnik IU. Nuclear Receptor Corepressor 1 Expression and Output Declines with Prostate Cancer Progression. Clin Cancer Res 2016; 22:3937-49. [PMID: 26968201 DOI: 10.1158/1078-0432.ccr-15-1983] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 02/19/2016] [Indexed: 11/16/2022]
Abstract
PURPOSE Castration therapy in advanced prostate cancer eventually fails and leads to the development of castration-resistant prostate cancer (CRPC), which has no cure. Characteristic features of CRPC can be increased androgen receptor (AR) expression and altered transcriptional output. We investigated the expression of nuclear receptor corepressor 1 (NCOR1) in human prostate and prostate cancer and the role of NCOR1 in response to antiandrogens. EXPERIMENTAL DESIGN NCOR1 protein levels were compared between matched normal prostate and prostate cancer in 409 patient samples. NCOR1 knockdown was used to investigate its effect on bicalutamide response in androgen-dependent prostate cancer cell lines and transcriptional changes associated with the loss of NCOR1. NCOR1 transcriptional signature was also examined in prostate cancer gene expression datasets. RESULTS NCOR1 protein was detected in cytoplasm and nuclei of secretory epithelial cells in normal prostate. Both cytoplasmic and nuclear NCOR1 protein levels were lower in prostate cancer than in normal prostate. Prostate cancer metastases show significant decrease in NCOR1 transcriptional output. Inhibition of LNCaP cellular proliferation by bicalutamide requires NCOR1. NCOR1-regulated genes suppress cellular proliferation and mediate bicalutamide resistance. In the mouse, NCOR1 is required for bicalutamide-dependent regulation of a subset of the AR target genes. CONCLUSIONS In summary, we demonstrated that NCOR1 function declines with prostate cancer progression. Reduction in NCOR1 levels causes bicalutamide resistance in LNCaP cells and compromises response to bicalutamide in mouse prostate in vivo Clin Cancer Res; 22(15); 3937-49. ©2016 AACR.
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Affiliation(s)
- Sandra M Lopez
- Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida. Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alexander I Agoulnik
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida. Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
| | - Manqi Zhang
- Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida
| | - Leif E Peterson
- Center for Biostatistics, Houston Methodist Research Institute, Houston, Texas
| | - Egla Suarez
- Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida
| | - Gregory A Gandarillas
- Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida
| | - Anna Frolov
- Dan L. Duncan Cancer Center-Biostatistics, Baylor College of Medicine, Houston, Texas
| | - Rile Li
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas
| | - Kimal Rajapakshe
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Christian Coarfa
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Michael M Ittmann
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas. Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas
| | - Nancy L Weigel
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Irina U Agoulnik
- Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida. Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas. Biomolecular Sciences Institute, School of Integrated Science and Humanity, Florida international University, Miami, Florida.
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Perumal D, Pillai S, Nguyen J, Schaal C, Coppola D, Chellappan SP. Nicotinic acetylcholine receptors induce c-Kit ligand/Stem Cell Factor and promote stemness in an ARRB1/ β-arrestin-1 dependent manner in NSCLC. Oncotarget 2015; 5:10486-502. [PMID: 25401222 PMCID: PMC4279388 DOI: 10.18632/oncotarget.2395] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 08/26/2014] [Indexed: 12/29/2022] Open
Abstract
Lung cancer remains the leading cause of cancer-related deaths worldwide. β-arrestin-1 (ARRB1), a scaffolding protein involved in the desensitization of signals arising from activated G-protein-coupled receptors (GPCRs), has been shown to play a role in invasion and proliferation of cancer cells, including nicotine-induced proliferation of human non–small cell lung cancers (NSCLCs). In this study, we identified genes that are differentially regulated by nicotine in an ARRB1/β-arrestin-1 dependent manner in NSCLC cells by microarray analysis. Among the identified genes, SCF (Stem cell factor) strongly differentiated smokers from non-smokers in the Director's Challenge Set expression data and its high expression correlated with poor prognosis. SCF, a major cytokine is the ligand for the c-Kit proto-oncogene and was found to be over expressed in human lung adenocarcinomas, but not squamous cell carcinomas. Data presented here show that transcription factor E2F1 can induce SCF expression at the transcriptional level and depletion of E2F1 or ARRB1/β-arrestin-1 could not promote self-renewal of SP cells. These studies suggest that nicotine might be promoting NSCLC growth and metastasis by inducing the secretion of SCF, and raise the possibility that targeting signalling cascades that activate E2F1 might be an effective way to combat NSCLC.
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Affiliation(s)
- Deepak Perumal
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Magnolia Drive, Tampa, FL, USA. Department of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Smitha Pillai
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Magnolia Drive, Tampa, FL, USA
| | - Jonathan Nguyen
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Magnolia Drive, Tampa, FL, USA
| | - Courtney Schaal
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Magnolia Drive, Tampa, FL, USA
| | - Domenico Coppola
- Department of Anatomic Pathology, H. Lee Moffitt Cancer Center & Research Institute, Magnolia Drive, Tampa, FL, USA
| | - Srikumar P Chellappan
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Magnolia Drive, Tampa, FL, USA
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PCDH10 inhibits cell proliferation of multiple myeloma via the negative regulation of the Wnt/β-catenin/BCL-9 signaling pathway. Oncol Rep 2015; 34:747-54. [PMID: 26081897 DOI: 10.3892/or.2015.4056] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 05/04/2015] [Indexed: 11/05/2022] Open
Abstract
The tumor suppressor protocadherin-10 (PCDH10) gene is important in cell proliferation, survival, apoptosis and migration. Inactivation of PCDH10 by promoter methylation is a frequent pathogenetic event in multiple myeloma (MM). The Wnt/β-catenin pathway is known to be involved in the cell growth of various types of cancer, including MM. However, the relationship between PCDH10 and Wnt signaling in MM remains unclear. In this study, we found that PCDH10 deficiency highly enhanced MM cell proliferation, Wnt signaling and the expression of BCL-9, an essential coactivator of Wnt transcriptional activity that is correlated with cell growth, survival and drug resistance. Restoration of PCDH10 suppressed nuclear localization of β-catenin, the activity of LEF/TCF, the expression of BCL-9 and AKT, whereas the expression of GSK3β was increased. The antagonistic effect of PCDH10 was associated with G1-phase blockage. Collectively, PCDH10 antagonized MM cell proliferation via the downregulation of Wnt/β-catenin/BCL-9 signaling, whereas PCDH10 repressed the expression of AKT to promote the expression of GSK3β and then to restrain the activation of β-catenin. Thus, the results offer a novel preclinical rationale in order to explore PCDH10 as an effective and selective therapeutic strategy to eradicate MM cells.
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The potential of neurotensin secreted from neuroendocrine tumor cells to promote gelsolin-mediated invasiveness of prostate adenocarcinoma cells. J Transl Med 2015; 95:283-95. [PMID: 25581609 DOI: 10.1038/labinvest.2014.165] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 11/23/2014] [Accepted: 11/24/2014] [Indexed: 01/11/2023] Open
Abstract
Neuroendocrine (NE) cells in prostate cancer have been shown to be associated with the progression of prostate cancer. However, little is known about the molecular basis of this association. We have previously demonstrated that NE cells promote metastasis of a human prostate cancer cell line (LNCaP) with overexpression of the gelsolin gene. The purpose of this study was to investigate the interactions between NE cells and LNCaP cells and the involvement of gelsolin in contributing to the invasive potential of LNCaP cells. In addition, we examined whether neurotensin induced gelsolin-mediated invasion. We used the NE cell line NE-CS that was established from the prostate of the LPB-Tag 12T-10 transgenic mouse. Small interfering RNA (siRNA) targeting gelsolin or not targeting it was transfected into LNCaP cells. Cell invasion was assessed by Matrigel invasion assay. The supernatant of NE-CS cells and neurotensin induced the transformation of LNCaP cells. Neurotensin was observed in the supernatant of NE-CS cells but not in LNCaP cells. The siRNA targeting of gelsolin resulted in inhibition of invasion of LNCaP cells in the culture medium with neurotensin added, and in the supernatant of NE-CS cells with epidermal growth factor. The invasive potential of LNCaP cells enhanced by neurotensin or the supernatant of NE-CS cells through neurotensin receptor 1 (NTSR1) was blocked by a phospholipase Cγ inhibitor and an intracellular calcium chelator, with concomitant gelsolin suppression. This study indicates that NE cells and neurotensin induce gelsolin-mediated invasion of LNCaP cells through NTSR1 activation.
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Vlachostergios PJ, Papandreou CN. Targeting neuroendocrine prostate cancer: molecular and clinical perspectives. Front Oncol 2015; 5:6. [PMID: 25699233 PMCID: PMC4313607 DOI: 10.3389/fonc.2015.00006] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 01/09/2015] [Indexed: 11/18/2022] Open
Abstract
Neuroendocrine prostate carcinoma, either co-present with the local adenocarcinoma disease or as a result of transdifferentiation later in time, was described as one major process of emerging resistance to androgen deprivation therapies, and at the clinical level it is consistent with the development of rapidly progressive visceral disease, often in the absence of elevated serum prostate-specific antigen level. Until present, platinum-based chemotherapy has been the only treatment modality, able to produce a fair amount of responses but of short duration. Recently, several efforts for molecular characterization of this lethal phenotype have resulted in identification of novel signaling factors involved in microenvironment interactions, mitosis, and neural reprograming as potential therapeutic targets. Ongoing clinical testing of specific inhibitors of these targets, for example, Aurora kinase A inhibitors, in carefully selected patients and exploitation of expression changes of the target before and after manipulation is anticipated to increase the existing data and facilitate therapeutic decision making at this late stage of the disease when hormonal manipulations, even with the newest androgen-directed therapies are no longer feasible.
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Affiliation(s)
| | - Christos N Papandreou
- Department of Medical Oncology, Faculty of Medicine, School of Health Sciences, University of Thessaly , Larissa , Greece
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Lv J, Zhu P, Yang Z, Li M, Zhang X, Cheng J, Chen X, Lu F. PCDH20 functions as a tumour-suppressor gene through antagonizing the Wnt/β-catenin signalling pathway in hepatocellular carcinoma. J Viral Hepat 2015; 22:201-11. [PMID: 24910204 PMCID: PMC4344823 DOI: 10.1111/jvh.12265] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 04/22/2014] [Indexed: 12/13/2022]
Abstract
Several members of protocadherins have been found involved in human carcinogenesis, but little is known about PCDH20 in HCC. Here in this study, using quantitative real-time RT-PCR assay, we demonstrated the downregulation of PCDH20 expression in 6 of 7 HCC cell lines tested. Similarly, PCDH20 expression in primary HCC tissues was also significantly downregulated in comparison with that in either disease-free normal liver tissues or the adjacent nontumour liver tissues (P < 0.001, respectively). Among HCC tumour tissues studied, about 48% (51/107) of them showed reduced PCDH20 mRNA level. Further statistic analysis revealed that the reduced PCDH20 mRNA level in tumour tissues was much more common in younger patients group (aged <50 years) than that in older group (≥50 years) (60% vs 33%, P = 0.0303). Loss of heterozygosity (LOH) and promoter hypermethylation analysis revealed that deletion and/or aberrant epigenetic modulation of PCDH20 gene account for its downregulation, at least in a fraction of tumour specimens. Moreover, ectopic expression of PCDH20 in HCC cells significantly suppressed cell proliferation, clonogenicity, migration and tumour formation. Notably, we proved for the first time that, via activating GSK-3β, PCDH20 could inhibit Wnt/β-catenin signalling pathway. Furthermore, our data suggest that PCDH20 may conduct its Wnt/β-catenin signalling antagonizing function through suppressing Akt and Erk activities and promoting GSK-3β signalling activities. However, the detailed mechanism remained undiscovered. In conclusion, our data here strongly suggested that PCDH20 may act as a candidate tumour suppressor in HCC.
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Affiliation(s)
- J Lv
- Department of Microbiology & infectious Disease Center, Peking University Health Science CenterBeijing, China,Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical UniversityGuangzhou, Guangdong, China
| | - P Zhu
- Department of Microbiology & infectious Disease Center, Peking University Health Science CenterBeijing, China
| | - Z Yang
- Department of Microbiology & infectious Disease Center, Peking University Health Science CenterBeijing, China
| | - M Li
- Department of Microbiology & infectious Disease Center, Peking University Health Science CenterBeijing, China
| | - X Zhang
- Department of Microbiology & infectious Disease Center, Peking University Health Science CenterBeijing, China
| | - J Cheng
- Department of Microbiology & infectious Disease Center, Peking University Health Science CenterBeijing, China
| | - X Chen
- Department of Microbiology & infectious Disease Center, Peking University Health Science CenterBeijing, China
| | - F Lu
- Department of Microbiology & infectious Disease Center, Peking University Health Science CenterBeijing, China,Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical UniversityGuangzhou, Guangdong, China
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Pernicová Z, Slabáková E, Fedr R, Šimečková Š, Jaroš J, Suchánková T, Bouchal J, Kharaishvili G, Král M, Kozubík A, Souček K. The role of high cell density in the promotion of neuroendocrine transdifferentiation of prostate cancer cells. Mol Cancer 2014; 13:113. [PMID: 24884804 PMCID: PMC4229954 DOI: 10.1186/1476-4598-13-113] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 05/13/2014] [Indexed: 11/13/2022] Open
Abstract
Background Tumor heterogeneity and the plasticity of cancer cells present challenges for effective clinical diagnosis and therapy. Such challenges are epitomized by neuroendocrine transdifferentiation (NED) and the emergence of neuroendocrine-like cancer cells in prostate tumors. This phenomenon frequently arises from androgen-depleted prostate adenocarcinoma and is associated with the development of castration-resistant prostate cancer and poor prognosis. Results In this study, we showed that NED was evoked in both androgen receptor (AR)-positive and AR-negative prostate epithelial cell lines by growing the cells to a high density. Androgen depletion and high-density cultivation were both associated with cell cycle arrest and deregulated expression of several cell cycle regulators, such as p27Kip1, members of the cyclin D protein family, and Cdk2. Dual inhibition of Cdk1 and Cdk2 using pharmacological inhibitor or RNAi led to modulation of the cell cycle and promotion of NED. We further demonstrated that the cyclic adenosine 3′, 5′-monophosphate (cAMP)-mediated pathway is activated in the high-density conditions. Importantly, inhibition of cAMP signaling using a specific inhibitor of adenylate cyclase, MDL-12330A, abolished the promotion of NED by high cell density. Conclusions Taken together, our results imply a new relationship between cell cycle attenuation and promotion of NED and suggest high cell density as a trigger for cAMP signaling that can mediate reversible NED in prostate cancer cells.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Karel Souček
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v,v,i, Královopolská 135, CZ-612 65 Brno, Czech Republic.
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Terry S, Beltran H. The many faces of neuroendocrine differentiation in prostate cancer progression. Front Oncol 2014; 4:60. [PMID: 24724054 PMCID: PMC3971158 DOI: 10.3389/fonc.2014.00060] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 03/12/2014] [Indexed: 12/15/2022] Open
Abstract
In normal prostate, neuroendocrine (NE) cells are rare and interspersed among the epithelium. These cells are believed to provide trophic signals to epithelial cell populations through the secretion of an abundance of neuropeptides that can diffuse to influence surrounding cells. In the setting of prostate cancer (PC), NE cells can also stimulate surrounding prostate adenocarcinoma cell growth, but in some cases adenocarcinoma cells themselves acquire NE characteristics. This epithelial plasticity is associated with decreased androgen receptor (AR) signaling and the accumulation of neuronal and stem cell characteristics. Transformation to an NE phenotype is one proposed mechanism of resistance to contemporary AR-targeted treatments, is associated with poor prognosis, and thought to represent up to 25% of lethal PCs. Importantly, the advent of high-throughput technologies has started to provide clues for understanding the complex molecular profiles of tumors exhibiting NE differentiation. Here, we discuss these recent advances, the multifaceted manner by which an NE-like state may arise during the different stages of disease progression, and the potential benefit of this knowledge for the management of patients with advanced PC.
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Affiliation(s)
- Stéphane Terry
- U955, Institut Mondor de Recherche Biomédicale, INSERM , Créteil , France ; UMR 3244, Institut Curie , Paris , France
| | - Himisha Beltran
- Division of Hematology and Medical Oncology, Weill Cornell Medical College , New York, NY , USA
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Chang PC, Wang TY, Chang YT, Chu CY, Lee CL, Hsu HW, Zhou TA, Wu Z, Kim RH, Desai SJ, Liu S, Kung HJ. Autophagy pathway is required for IL-6 induced neuroendocrine differentiation and chemoresistance of prostate cancer LNCaP cells. PLoS One 2014; 9:e88556. [PMID: 24551118 PMCID: PMC3925144 DOI: 10.1371/journal.pone.0088556] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 01/07/2014] [Indexed: 12/29/2022] Open
Abstract
Prostate cancer (PCa) cells undergoing neuroendocrine differentiation (NED) are clinically relevant to the development of relapsed castration-resistant PCa. Increasing evidences show that autophagy involves in the development of neuroendocrine (NE) tumors, including PCa. To clarify the effect of autophagy on NED, androgen-sensitive PCa LNCaP cells were examined. Treatment of LNCaP cells with IL-6 resulted in an induction of autophagy. In the absence of androgen, IL-6 caused an even stronger activation of autophagy. Similar result was identified in NED induction. Inhibition of autophagy with chloroquine (CQ) markedly decreased NED. This observation was confirmed by beclin1 and Atg5 silencing experiments. Further supporting the role of autophagy in NED, we found that LC3 was up-regulated in PCa tissue that had relapsed after androgen-deprivation therapy when compared with their primary tumor counterpart. LC3 staining in relapsed PCa tissue showed punctate pattern similar to the staining of chromogranin A (CgA), a marker for NED cells. Moreover, autophagy inhibition induced the apoptosis of IL-6 induced NE differentiated PCa cells. Consistently, inhibition of autophagy by knockdown of beclin1 or Atg5 sensitized NE differentiated LNCaP cells to etoposide, a chemotherapy drug. To identify the mechanisms, phosphorylation of IL-6 downstream targets was analyzed. An increase in phospho-AMPK and a decrease in phospho-mTOR were found, which implies that IL-6 regulates autophagy through the AMPK/mTOR pathway. Most important to this study is the discovery of REST, a neuronal gene-specific transcriptional repressor that is involved in autophagy activation. REST was down-regulated in IL-6 treatment. Knockdown experiments suggest that REST is critical to NED and autophagy activation by IL-6. Together, our studies imply that autophagy is involved in PCa progression and plays a cytoprotective role when NED is induced in PCa cells by IL-6 treatment. These results reveal the potential of targeting autophagy as part of a combined therapeutic regime for NE tumors.
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Affiliation(s)
- Pei-Ching Chang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan, R.O.C
- * E-mail: (PCC); (HJK)
| | - Tao-Yeuan Wang
- Department of Pathology, Mackay Medical College and Mackay Memorial Hospital, New Taipei City, Taiwan, R.O.C
- Mackay Junior College of Medicine, Nursing, and Management, New Taipei City, Taiwan, R.O.C
| | - Yi-Ting Chang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan, R.O.C
| | - Cheng-Ying Chu
- Institute for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Chin-Ling Lee
- Department of Pathology, Mackay Medical College and Mackay Memorial Hospital, New Taipei City, Taiwan, R.O.C
- Mackay Junior College of Medicine, Nursing, and Management, New Taipei City, Taiwan, R.O.C
| | - Hung-Wei Hsu
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan, R.O.C
| | - Tyng-An Zhou
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan, R.O.C
| | - Zhaoju Wu
- Department of Biochemistry and Molecular Medicine, University of California Davis, Davis, California, United States of America
- UC Davis Cancer Center, University of California Davis, Davis, California, United States of America
| | - Randie H. Kim
- Department of Dermatology, New York University School of Medicine, New York, New York, United States of America
| | - Sonal J. Desai
- UC Davis Cancer Center, University of California Davis, Davis, California, United States of America
| | - Shangqin Liu
- Department of Hematlogy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Hsing-Jien Kung
- Institute for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, R.O.C
- Department of Biochemistry and Molecular Medicine, University of California Davis, Davis, California, United States of America
- Division of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, Taiwan, R.O.C
- * E-mail: (PCC); (HJK)
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Abstract
Loss of cadherin 1 (CDH1; also known as epithelial cadherin (E-cadherin)) is used for the diagnosis and prognosis of epithelial cancers. However, it should not be ignored that the superfamily of transmembrane cadherin proteins encompasses more than 100 members in humans, including other classical cadherins, numerous protocadherins and cadherin-related proteins. Elucidation of their roles in suppression versus initiation or progression of various tumour types is a young but fascinating field of molecular cancer research. These cadherins are very diverse in both structure and function, and their mutual interactions seem to influence biological responses in complex and versatile ways.
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Affiliation(s)
- Frans van Roy
- Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium.The Inflammation Research Center, VIB, B-9052 Ghent, Belgium
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Cross modulation between the androgen receptor axis and protocadherin-PC in mediating neuroendocrine transdifferentiation and therapeutic resistance of prostate cancer. Neoplasia 2014; 15:761-72. [PMID: 23814488 DOI: 10.1593/neo.122070] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2012] [Revised: 04/14/2013] [Accepted: 04/15/2013] [Indexed: 12/31/2022] Open
Abstract
Castration-resistant prostate cancers (CRPCs) that relapse after androgen deprivation therapies (ADTs) are responsible for the majority of mortalities from prostate cancer (PCa). While mechanisms enabling recurrent activity of androgen receptor (AR) are certainly involved in the development of CRPC, there may be factors that contribute to the process including acquired neuroendocrine (NE) cell-like behaviors working through alternate (non-AR) cell signaling systems or AR-dependent mechanisms. In this study, we explore the potential relationship between the AR axis and a novel putative marker of NE differentiation, the human male protocadherin-PC (PCDH-PC), in vitro and in human situations. We found evidence for an NE transdifferentiation process and PCDH-PC expression as an early-onset adaptive mechanism following ADT and elucidate AR as a key regulator of PCDH-PC expression. PCDH-PC overexpression, in turn, attenuates the ligand-dependent activity of the AR, enabling certain prostate tumor clones to assume a more NE phenotype and promoting their survival under diverse stress conditions. Acquisition of an NE phenotype by PCa cells positively correlated with resistance to cytotoxic agents including docetaxel, a taxane chemotherapy approved for the treatment of patients with metastatic CRPC. Furthermore, knockdown of PCDH-PC in cells that have undergone an NE transdifferentiation partially sensitized cells to docetaxel. Together, these results reveal a reciprocal regulation between the AR axis and PCDH-PC signals, observed both in vitro and in vivo, with potential implications in coordinating NE transdifferentiation processes and progression of PCa toward hormonal and chemoresistance.
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50
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Hsu CC, Hu CD. Transcriptional activity of c-Jun is critical for the suppression of AR function. Mol Cell Endocrinol 2013; 372:12-22. [PMID: 23523566 PMCID: PMC3646949 DOI: 10.1016/j.mce.2013.03.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 03/04/2013] [Indexed: 12/16/2022]
Abstract
Androgen receptor (AR) signaling plays a pivotal role in growth and survival of prostate cancer cells. c-Jun is an important member of the activator protein 1 (AP-1) family and was shown to interact with AR. However, the role of c-Jun in AR signaling remains controversial, with being a coactivator or a corepressor reported. Here, utilizing multiple approaches, we show that c-Jun efficiently inhibits AR activity and the growth of prostate cancer cells. Overexpression of c-Jun inhibits not only the activities of various androgen-responsive promoters but also the transcripts of multiple AR target genes. Interestingly, long-term c-Jun overexpression also down-regulates AR expression at both the protein and mRNA levels. Molecular analysis suggests that c-Jun inhibits AR transactivation potential via an unknown target gene. The inhibition of AR by c-Jun occurs in both hormone naïve and castration-resistant prostate cancer cells. Our results unravel a novel mechanism by which c-Jun antagonizes the AR signaling.
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Affiliation(s)
- Chih-Chao Hsu
- Department of Medicinal Chemistry and Molecular Pharmacology and the Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
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