1
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Li Y, Kumamaru H, Vokes TJ, Tran AN, Shevinsky CA, Graham L, Archuleta K, Limon KR, Lu P, Blesch A, Tuszynski MH, Brock JH. An improved method for generating human spinal cord neural stem cells. Exp Neurol 2024; 376:114779. [PMID: 38621449 DOI: 10.1016/j.expneurol.2024.114779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 03/21/2024] [Accepted: 04/09/2024] [Indexed: 04/17/2024]
Abstract
Neural stem cells have exhibited efficacy in pre-clinical models of spinal cord injury (SCI) and are on a translational path to human testing. We recently reported that neural stem cells must be driven to a spinal cord fate to optimize host axonal regeneration into sites of implantation in the injured spinal cord, where they subsequently form neural relays across the lesion that support significant functional improvement. We also reported methods of deriving and culturing human spinal cord neural stem cells derived from embryonic stem cells that can be sustained over serial high passage numbers in vitro, providing a potentially optimized cell source for human clinical trials. We now report further optimization of methods for deriving and sustaining cultures of human spinal cord neural stem cell lines that result in improved karyotypic stability while retaining anatomical efficacy in vivo. This development improves prospects for safe human translation.
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Affiliation(s)
- Y Li
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America
| | - H Kumamaru
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America; Department of Orthopedic Surgery, Kyushu University, Oita, Japan
| | - T J Vokes
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America
| | - A N Tran
- Veterans Administration San Diego Healthcare System, San Diego, CA, United States of America
| | - C A Shevinsky
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America
| | - L Graham
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America
| | - K Archuleta
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America
| | - K R Limon
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America
| | - P Lu
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America; Veterans Administration San Diego Healthcare System, San Diego, CA, United States of America
| | - A Blesch
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America; Veterans Administration San Diego Healthcare System, San Diego, CA, United States of America
| | - M H Tuszynski
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America; Veterans Administration San Diego Healthcare System, San Diego, CA, United States of America
| | - J H Brock
- Department of Neurosciences, University of California - San Diego, La Jolla, CA, United States of America; Veterans Administration San Diego Healthcare System, San Diego, CA, United States of America.
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2
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Yuan X, Yu T, Zhao J, Jiang H, Hao Y, Lei W, Liang Y, Li B, Qian W. Analysis of the genomic landscape of primary central nervous system lymphoma using whole-genome sequencing in Chinese patients. Front Med 2023; 17:889-906. [PMID: 37418076 DOI: 10.1007/s11684-023-0994-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 03/06/2023] [Indexed: 07/08/2023]
Abstract
Primary central nervous system lymphoma (PCNSL) is an uncommon non-Hodgkin's lymphoma with poor prognosis. This study aimed to depict the genetic landscape of Chinese PCNSLs. Whole-genome sequencing was performed on 68 newly diagnosed Chinese PCNSL samples, whose genomic characteristics and clinicopathologic features were also analyzed. Structural variations were identified in all patients with a mean of 349, which did not significantly influence prognosis. Copy loss occurred in all samples, while gains were detected in 77.9% of the samples. The high level of copy number variations was significantly associated with poor progression-free survival (PFS) and overall survival (OS). A total of 263 genes mutated in coding regions were identified, including 6 newly discovered genes (ROBO2, KMT2C, CXCR4, MYOM2, BCLAF1, and NRXN3) detected in ⩾ 10% of the cases. CD79B mutation was significantly associated with lower PFS, TMSB4X mutation and high expression of TMSB4X protein was associated with lower OS. A prognostic risk scoring system was also established for PCNSL, which included Karnofsky performance status and six mutated genes (BRD4, EBF1, BTG1, CCND3, STAG2, and TMSB4X). Collectively, this study comprehensively reveals the genomic landscape of newly diagnosed Chinese PCNSLs, thereby enriching the present understanding of the genetic mechanisms of PCNSL.
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Affiliation(s)
- Xianggui Yuan
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Teng Yu
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Jianzhi Zhao
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Huawei Jiang
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Yuanyuan Hao
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Wen Lei
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Yun Liang
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Baizhou Li
- Department of Pathology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China.
| | - Wenbin Qian
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China.
- National Clinical Research Center for Hematologic Diseases, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China.
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3
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Ardizzone A, Bova V, Casili G, Repici A, Lanza M, Giuffrida R, Colarossi C, Mare M, Cuzzocrea S, Esposito E, Paterniti I. Role of Basic Fibroblast Growth Factor in Cancer: Biological Activity, Targeted Therapies, and Prognostic Value. Cells 2023; 12:cells12071002. [PMID: 37048074 PMCID: PMC10093572 DOI: 10.3390/cells12071002] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Cancer is the leading cause of death worldwide; thus, it is necessary to find successful strategies. Several growth factors, such as vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF, FGF2), and transforming growth factor beta (TGF-β), are involved in the main processes that fuel tumor growth, i.e., cell proliferation, angiogenesis, and metastasis, by activating important signaling pathways, including PLC-γ/PI3/Ca2+ signaling, leading to PKC activation. Here, we focused on bFGF, which, when secreted by tumor cells, mediates several signal transductions and plays an influential role in tumor cells and in the development of chemoresistance. The biological mechanism of bFGF is shown by its interaction with its four receptor subtypes: fibroblast growth factor receptor (FGFR) 1, FGFR2, FGFR3, and FGFR4. The bFGF–FGFR interaction stimulates tumor cell proliferation and invasion, resulting in an upregulation of pro-inflammatory and anti-apoptotic tumor cell proteins. Considering the involvement of the bFGF/FGFR axis in oncogenesis, preclinical and clinical studies have been conducted to develop new therapeutic strategies, alone and/or in combination, aimed at intervening on the bFGF/FGFR axis. Therefore, this review aimed to comprehensively examine the biological mechanisms underlying bFGF in the tumor microenvironment, the different anticancer therapies currently available that target the FGFRs, and the prognostic value of bFGF.
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Affiliation(s)
- Alessio Ardizzone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Valentina Bova
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Giovanna Casili
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Alberto Repici
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Marika Lanza
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | | | - Cristina Colarossi
- Istituto Oncologico del Mediterraneo, Via Penninazzo 7, 95029 Viagrande, Italy
| | - Marzia Mare
- Istituto Oncologico del Mediterraneo, Via Penninazzo 7, 95029 Viagrande, Italy
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Emanuela Esposito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
- Correspondence: ; Tel.: +39-090-6765208
| | - Irene Paterniti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
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Sailer V, von Amsberg G, Duensing S, Kirfel J, Lieb V, Metzger E, Offermann A, Pantel K, Schuele R, Taubert H, Wach S, Perner S, Werner S, Aigner A. Experimental in vitro, ex vivo and in vivo models in prostate cancer research. Nat Rev Urol 2023; 20:158-178. [PMID: 36451039 DOI: 10.1038/s41585-022-00677-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2022] [Indexed: 12/02/2022]
Abstract
Androgen deprivation therapy has a central role in the treatment of advanced prostate cancer, often causing initial tumour remission before increasing independence from signal transduction mechanisms of the androgen receptor and then eventual disease progression. Novel treatment approaches are urgently needed, but only a fraction of promising drug candidates from the laboratory will eventually reach clinical approval, highlighting the demand for critical assessment of current preclinical models. Such models include standard, genetically modified and patient-derived cell lines, spheroid and organoid culture models, scaffold and hydrogel cultures, tissue slices, tumour xenograft models, patient-derived xenograft and circulating tumour cell eXplant models as well as transgenic and knockout mouse models. These models need to account for inter-patient and intra-patient heterogeneity, the acquisition of primary or secondary resistance, the interaction of tumour cells with their microenvironment, which make crucial contributions to tumour progression and resistance, as well as the effects of the 3D tissue network on drug penetration, bioavailability and efficacy.
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Affiliation(s)
- Verena Sailer
- Institute for Pathology, University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Gunhild von Amsberg
- Department of Oncology and Hematology, University Cancer Center Hamburg Eppendorf and Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg Eppendorf, Hamburg, Germany
| | - Stefan Duensing
- Section of Molecular Urooncology, Department of Urology, University Hospital Heidelberg and National Center for Tumour Diseases, Heidelberg, Germany
| | - Jutta Kirfel
- Institute for Pathology, University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Verena Lieb
- Research Division Molecular Urology, Department of Urology and Paediatric Urology, University Hospital Erlangen, Erlangen, Germany
| | - Eric Metzger
- Department of Urology, Center for Clinical Research, University of Freiburg Medical Center, Freiburg, Germany
| | - Anne Offermann
- Institute for Pathology, University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Klaus Pantel
- Institute for Tumour Biology, Center for Experimental Medicine, University Clinics Hamburg-Eppendorf, Hamburg, Germany
- Mildred-Scheel-Nachwuchszentrum HaTRiCs4, University Cancer Center Hamburg, Hamburg, Germany
| | - Roland Schuele
- Department of Urology, Center for Clinical Research, University of Freiburg Medical Center, Freiburg, Germany
| | - Helge Taubert
- Research Division Molecular Urology, Department of Urology and Paediatric Urology, University Hospital Erlangen, Erlangen, Germany
| | - Sven Wach
- Research Division Molecular Urology, Department of Urology and Paediatric Urology, University Hospital Erlangen, Erlangen, Germany
| | - Sven Perner
- University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
- Pathology, Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Stefan Werner
- Institute for Tumour Biology, Center for Experimental Medicine, University Clinics Hamburg-Eppendorf, Hamburg, Germany
- Mildred-Scheel-Nachwuchszentrum HaTRiCs4, University Cancer Center Hamburg, Hamburg, Germany
| | - Achim Aigner
- Clinical Pharmacology, Rudolf-Boehm-Institute for Pharmacology and Toxicology, University of Leipzig, Medical Faculty, Leipzig, Germany.
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5
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Nascente EDP, Amorim RL, Fonseca-Alves CE, de Moura VMBD. Comparative Pathobiology of Canine and Human Prostate Cancer: State of the Art and Future Directions. Cancers (Basel) 2022; 14:2727. [PMID: 35681707 PMCID: PMC9179314 DOI: 10.3390/cancers14112727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/14/2022] [Accepted: 05/15/2022] [Indexed: 02/01/2023] Open
Abstract
First described in 1817, prostate cancer is considered a complex neoplastic entity, and one of the main causes of death in men in the western world. In dogs, prostatic carcinoma (PC) exhibits undifferentiated morphology with different phenotypes, is hormonally independent of aggressive character, and has high rates of metastasis to different organs. Although in humans, the risk factors for tumor development are known, in dogs, this scenario is still unclear, especially regarding castration. Therefore, with the advent of molecular biology, studies were and are carried out with the aim of identifying the main molecular mechanisms and signaling pathways involved in the carcinogenesis and progression of canine PC, aiming to identify potential biomarkers for diagnosis, prognosis, and targeted treatment. However, there are extensive gaps to be filled, especially when considering the dog as experimental model for the study of this neoplasm in humans. Thus, due to the complexity of the subject, the objective of this review is to present the main pathobiological aspects of canine PC from a comparative point of view to the same neoplasm in the human species, addressing the historical context and current understanding in the scientific field.
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Affiliation(s)
- Eduardo de Paula Nascente
- School of Veterinary Medicine and Animal Science, Federal University of Goiás, Goiânia 74001-970, Brazil;
| | - Renée Laufer Amorim
- Veterinary Clinic Department, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu 18618-970, Brazil;
| | - Carlos Eduardo Fonseca-Alves
- Department of Veterinary Surgery and Anesthesiology, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu 18618-970, Brazil;
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6
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FGF/FGFR-Dependent Molecular Mechanisms Underlying Anti-Cancer Drug Resistance. Cancers (Basel) 2021; 13:cancers13225796. [PMID: 34830951 PMCID: PMC8616288 DOI: 10.3390/cancers13225796] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/13/2021] [Accepted: 11/16/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Deregulation of the FGF/FGFR axis is associated with many types of cancer and contributes to the development of chemoresistance, limiting the effectiveness of current treatment strategies. There are several mechanisms involved in this phenomenon, including cross-talks with other signaling pathways, avoidance of apoptosis, stimulation of angiogenesis, and initiation of EMT. Here, we provide an overview of current research and approaches focusing on targeting components of the FGFR/FGF signaling module to overcome drug resistance during anti-cancer therapy. Abstract Increased expression of both FGF proteins and their receptors observed in many cancers is often associated with the development of chemoresistance, limiting the effectiveness of currently used anti-cancer therapies. Malfunctioning of the FGF/FGFR axis in cancer cells generates a number of molecular mechanisms that may affect the sensitivity of tumors to the applied drugs. Of key importance is the deregulation of cell signaling, which can lead to increased cell proliferation, survival, and motility, and ultimately to malignancy. Signaling pathways activated by FGFRs inhibit apoptosis, reducing the cytotoxic effect of some anti-cancer drugs. FGFRs-dependent signaling may also initiate angiogenesis and EMT, which facilitates metastasis and also correlates with drug resistance. Therefore, treatment strategies based on FGF/FGFR inhibition (using receptor inhibitors, ligand traps, monoclonal antibodies, or microRNAs) appear to be extremely promising. However, this approach may lead to further development of resistance through acquisition of specific mutations, metabolism switching, and molecular cross-talks. This review brings together information on the mechanisms underlying the involvement of the FGF/FGFR axis in the generation of drug resistance in cancer and highlights the need for further research to overcome this serious problem with novel therapeutic strategies.
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7
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Labanca E, Vazquez ES, Corn PG, Roberts JM, Wang F, Logothetis CJ, Navone NM. Fibroblast growth factors signaling in bone metastasis. Endocr Relat Cancer 2020; 27:R255-R265. [PMID: 32369771 PMCID: PMC7274538 DOI: 10.1530/erc-19-0472] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 05/04/2020] [Indexed: 12/20/2022]
Abstract
Many solid tumors metastasize to bone, but only prostate cancer has bone as a single, dominant metastatic site. Recently, the FGF axis has been implicated in cancer progression in some tumors and mounting evidence indicate that it mediates prostate cancer bone metastases. The FGF axis has an important role in bone biology and mediates cell-to-cell communication. Therefore, we discuss here basic concepts of bone biology, FGF signaling axis, and FGF axis function in adult bone, to integrate these concepts in our current understanding of the role of FGF axis in bone metastases.
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Affiliation(s)
- Estefania Labanca
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Elba S Vazquez
- Laboratorio de Inflamación y Cáncer, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- CONICET – Universidad de Buenos Aires, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Buenos Aires, Argentina
| | - Paul G Corn
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Justin M Roberts
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Fen Wang
- Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas, USA
| | - Christopher J Logothetis
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Nora M Navone
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Correspondence should be addressed to N M Navone:
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8
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Zhou Q, Wang C, Zhu Y, Wu Q, Jiang Y, Huang Y, Hu Y. Key Genes And Pathways Controlled By E2F1 In Human Castration-Resistant Prostate Cancer Cells. Onco Targets Ther 2019; 12:8961-8976. [PMID: 31802906 PMCID: PMC6827506 DOI: 10.2147/ott.s217347] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 09/18/2019] [Indexed: 12/17/2022] Open
Abstract
Background Treatment of castration-resistant prostate cancer (CRPC) is an enormous challenge. As E2F transcription factor 1 (E2F1) is an essential factor in CRPC, this study investigated the genes and pathways controlled by E2F1 and their effects on cellular behavior in CRPC. Methods In vitro assays were used to evaluate cellular proliferation, apoptosis, and behavior. Cellular expression was quantified by RNA sequencing (RNA-seq). Gene co-expression was assessed using the GeneMANIA database, and correlations were analyzed with the GEPIA server. Altered pathways of differentially expressed genes (DEGs) were revealed by functional annotation. Module analysis was performed using the STRING database and hub genes were filtered with the Cytoscape software. Some DEGs were validated by real-time quantitative PCR (RT-qPCR). Results Knockdown of E2F1 significantly inhibited proliferation and accelerated apoptosis in PC3 cells but not in DU145 cells. Invasion and migration were reduced for both cell lines. A total of 1811 DEGs were identified in PC3 cells and 27 DEGs in DU145 cells exhibiting E2F1 knockdown. Ten overlapping DEGs, including TMOD2 and AIF1L, were identified in both knockdown cell lines and were significantly enriched for association with actin filament organization pathways. TMOD2 and KREMEN2 were genes co-expressed with E2F1; six overlapping DEGs were positively correlated with transcription factor E2F1. DEGs of the PC3 and DU145 groups were associated with multiple pathways. Five DEGs that overlapped between the two cell lines and three hub DEGs from PC3 cells were validated by RT-qPCR. Conclusion The results of this study suggest that E2F1 has a critical role in regulating actin filaments, as indicated by the change in expression level of several genes, including TMOD2 and AIF1L, in CRPC. This extends our understanding of the cellular responses affected by E2F1 in CRPC.
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Affiliation(s)
- Qingniao Zhou
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China.,Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Chengbang Wang
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China.,Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Yuanyuan Zhu
- Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Qunying Wu
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China.,Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Yonghua Jiang
- Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China.,Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Yuanjie Huang
- Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Yanling Hu
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China.,Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China.,Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China.,Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
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9
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Olender J, Wang BD, Ching T, Garmire LX, Garofano K, Ji Y, Knox T, Latham P, Nguyen K, Rhim J, Lee NH. A Novel FGFR3 Splice Variant Preferentially Expressed in African American Prostate Cancer Drives Aggressive Phenotypes and Docetaxel Resistance. Mol Cancer Res 2019; 17:2115-2125. [PMID: 31266816 DOI: 10.1158/1541-7786.mcr-19-0415] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/19/2019] [Accepted: 06/21/2019] [Indexed: 01/08/2023]
Abstract
Alternative splicing (AS) has been shown to participate in prostate cancer development and progression; however, a link between AS and prostate cancer health disparities has been largely unexplored. Here we report on the cloning of a novel splice variant of FGFR3 that is preferentially expressed in African American (AA) prostate cancer. This novel variant (FGFR3-S) omits exon 14, comprising 123 nucleotides that encode the activation loop in the intracellular split kinase domain. Ectopic overexpression of FGFR3-S in European American (EA) prostate cancer cell lines (PC-3 and LNCaP) led to enhanced receptor autophosphorylation and increased activation of the downstream signaling effectors AKT, STAT3, and ribosomal S6 compared with FGFR3-L (retains exon 14). The increased oncogenic signaling imparted by FGFR3-S was associated with a substantial gain in proliferative and antiapoptotic activities, as well as a modest but significant gain in cell motility. Moreover, the FGFR3-S-conferred proliferative and motility gains were highly resistant to the pan-FGFR small-molecule inhibitor dovitinib and the antiapoptotic gain was insensitive to the cytotoxic drug docetaxel, which stands in marked contrast with dovitinib- and docetaxel-sensitive FGFR3-L. In an in vivo xenograft model, mice injected with PC-3 cells overexpressing FGFR3-S exhibited significantly increased tumor growth and resistance to dovitinib treatment compared with cells overexpressing FGFR3-L. In agreement with our in vitro and in vivo findings, a high FGFR3-S/FGFR3-L expression ratio in prostate cancer specimens was associated with poor patient prognosis. IMPLICATIONS: This work identifies a novel FGFR3 splice variant and supports the hypothesis that differential AS participates in prostate cancer health disparities.
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Affiliation(s)
- Jacqueline Olender
- Department of Pharmacology and Physiology, The George Washington University School of Medicine and Health Sciences, GW Cancer Center, Washington, D. C
| | - Bi-Dar Wang
- Department of Pharmaceutical Sciences, School of Pharmacy and Health Professions, University of Maryland Eastern Shore, Princess Anne, Maryland
| | - Travers Ching
- Cancer Epidemiology Program, University of Hawaii, Honolulu, Hawaii
| | - Lana X Garmire
- Department of Computational Medicine and Bioinformatics, School of Medicine, University of Michigan, Ann Arbor, Michigan
| | - Kaitlin Garofano
- Department of Pharmacology and Physiology, The George Washington University School of Medicine and Health Sciences, GW Cancer Center, Washington, D. C
| | - Youngmi Ji
- Adeno-Associated Virus Biology Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, Maryland
| | - Tessa Knox
- Department of Pharmacology and Physiology, The George Washington University School of Medicine and Health Sciences, GW Cancer Center, Washington, D. C
| | - Patricia Latham
- Department of Pathology, The George Washington University School of Medicine and Health Sciences, Washington, District of Columbia
| | - Kenneth Nguyen
- Department of Pharmacology and Physiology, The George Washington University School of Medicine and Health Sciences, GW Cancer Center, Washington, D. C
| | - Johng Rhim
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of Health Sciences, Bethesda, Maryland
| | - Norman H Lee
- Department of Pharmacology and Physiology, The George Washington University School of Medicine and Health Sciences, GW Cancer Center, Washington, D. C.
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10
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Detecting Chromosome Instability in Cancer: Approaches to Resolve Cell-to-Cell Heterogeneity. Cancers (Basel) 2019; 11:cancers11020226. [PMID: 30781398 PMCID: PMC6406658 DOI: 10.3390/cancers11020226] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/11/2019] [Accepted: 02/13/2019] [Indexed: 02/07/2023] Open
Abstract
Chromosome instability (CIN) is defined as an increased rate of chromosome gains and losses that manifests as cell-to-cell karyotypic heterogeneity and drives cancer initiation and evolution. Current research efforts are aimed at identifying the etiological origins of CIN, establishing its roles in cancer pathogenesis, understanding its implications for patient prognosis, and developing novel therapeutics that are capable of exploiting CIN. Thus, the ability to accurately identify and evaluate CIN is critical within both research and clinical settings. Here, we provide an overview of quantitative single cell approaches that evaluate and resolve cell-to-cell heterogeneity and CIN, and discuss considerations when selecting the most appropriate approach to suit both research and clinical contexts.
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Fibroblast Growth Factor Family in the Progression of Prostate Cancer. J Clin Med 2019; 8:jcm8020183. [PMID: 30720727 PMCID: PMC6406580 DOI: 10.3390/jcm8020183] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 01/23/2019] [Accepted: 01/31/2019] [Indexed: 12/27/2022] Open
Abstract
Fibroblast growth factors (FGFs) and FGF receptors (FGFRs) play an important role in the maintenance of tissue homeostasis and the development and differentiation of prostate tissue through epithelial-stromal interactions. Aberrations of this signaling are linked to the development and progression of prostate cancer (PCa). The FGF family includes two subfamilies, paracrine FGFs and endocrine FGFs. Paracrine FGFs directly bind the extracellular domain of FGFRs and act as a growth factor through the activation of tyrosine kinase signaling. Endocrine FGFs have a low affinity of heparin/heparan sulfate and are easy to circulate in serum. Their biological function is exerted as both a growth factor binding FGFRs with co-receptors and as an endocrine molecule. Many studies have demonstrated the significance of these FGFs and FGFRs in the development and progression of PCa. Herein, we discuss the current knowledge regarding the role of FGFs and FGFRs—including paracrine FGFs, endocrine FGFs, and FGFRs—in the development and progression of PCa, focusing on the representative molecules in each subfamily.
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Stone L. FGF2 causes genomic instability. Nat Rev Urol 2018; 15:528. [DOI: 10.1038/s41585-018-0058-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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