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Xie H, Guo L, Ma Q, Zhang W, Yang Z, Wang Z, Peng S, Wang K, Wen S, Shang Z, Niu Y. YAP is required for prostate development, regeneration, and prostate stem cell function. Cell Death Discov 2023; 9:339. [PMID: 37689711 PMCID: PMC10492789 DOI: 10.1038/s41420-023-01637-1] [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: 06/06/2023] [Revised: 08/28/2023] [Accepted: 08/30/2023] [Indexed: 09/11/2023] Open
Abstract
Prostate development and regeneration depend on prostate stem cell function, the delicate balance of stem cell self-renewal and differentiation. However, mechanisms modulating prostate stem cell function remain poorly identified. Here, we explored the roles of Yes-associated protein 1 (YAP) in prostate stem cells, prostate development and regeneration. Using YAPfl/fl, CD133-CreER mice, we found that stem cell-specific YAP-deficient mice had compromised branching morphogenesis and epithelial differentiation, resulting in damaged prostate development. YAP inhibition also significantly affected the regeneration process of mice prostate, leading to impaired regenerated prostate. Furthermore, YAP ablation in prostate stem cells significantly reduced its self-renewal activity in vitro, and attenuated prostate regeneration of prostate grafts in vivo. Further analysis revealed a decrease in Notch and Hedgehog pathways expression in YAP inhibition cells, and treatment with exogenous Shh partially restored the self-renewal ability of prostate sphere cells. Taken together, our results revealed the roles of YAP in prostate stem cell function and prostate development and regeneration through regulation of the Notch and Hedgehog signaling pathways.
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Affiliation(s)
- Hui Xie
- Department of Urology, Tianjin Institute of Urology, The second hospital of Tianjin Medical University, 300211, Tianjin, China
| | - Linpei Guo
- Gene and Immunotherapy Center, The Second Hospital of Shandong University, 250033, Jinan, Shandong, China
| | - Qianwang Ma
- Department of Urology, Tianjin Institute of Urology, The second hospital of Tianjin Medical University, 300211, Tianjin, China
| | - Wenyi Zhang
- Department of Radiology, The second hospital of Tianjin Medical University, 300211, Tianjin, China
| | - Zhao Yang
- Department of Urology, Tianjin Institute of Urology, The second hospital of Tianjin Medical University, 300211, Tianjin, China
| | - Zhun Wang
- Department of Urology, Tianjin Institute of Urology, The second hospital of Tianjin Medical University, 300211, Tianjin, China
| | - Shuanghe Peng
- Department of Pathology, Tianjin Institute of Urology, The second hospital of Tianjin Medical University, 300211, Tianjin, China
| | - Keruo Wang
- Department of Urology, Tianjin Institute of Urology, The second hospital of Tianjin Medical University, 300211, Tianjin, China
| | - Simeng Wen
- Department of Urology, Tianjin Institute of Urology, The second hospital of Tianjin Medical University, 300211, Tianjin, China
| | - Zhiqun Shang
- Department of Urology, Tianjin Institute of Urology, The second hospital of Tianjin Medical University, 300211, Tianjin, China.
| | - Yuanjie Niu
- Department of Urology, Tianjin Institute of Urology, The second hospital of Tianjin Medical University, 300211, Tianjin, China.
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ISHIGURO Y, SASAKI M, YAMAGUCHI E, MATSUMOTO K, FUKUMOTO S, FURUOKA H, IMAI K, KITAMURA N. Seasonal changes of the prostate gland in the raccoon (Procyon lotor) inhabiting Hokkaido, Japan. J Vet Med Sci 2023; 85:214-225. [PMID: 36596557 PMCID: PMC10017286 DOI: 10.1292/jvms.22-0407] [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: 08/31/2022] [Accepted: 11/25/2022] [Indexed: 12/29/2022] Open
Abstract
In the prostate gland of the raccoon (Procyon lotor), the morphological appearance of the epithelial cells, such as basal and luminal cells, and the expressions of p63, androgen receptor (AR), and proliferating cell nuclear antigen (PCNA) were examined histologically and immunohistochemically to clarify their seasonal dynamics throughout the year. In this study, the regression with luminal cell defluxion and the regeneration process of the prostatic glandular epithelium was revealed in the seasons with declined spermatogenesis (June to August). The expression of p63 was observed only in the basal cells. AR immunoreactivity in the luminal cells was shown in the developed and regenerating (close to developed) prostates, whereas the basal cells exhibited AR immunoreactivity all year round. PCNA expression was rare in epithelial cells of the developed prostate gland. In the regressed gland, the basal cells demonstrated proliferative ability, whereas PCNA of the luminal cells appeared for the first time in the regenerating phase. This study is the first to clarify the regression with luminal cell defluxion and restoration and the seasonal dynamics of AR expression and proliferative activity in the prostate gland of seasonal breeders.
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Affiliation(s)
- Yuki ISHIGURO
- Department of Veterinary Medicine, Obihiro University of
Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - Motoki SASAKI
- Department of Veterinary Medicine, Obihiro University of
Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - Emi YAMAGUCHI
- Division of Transboundary Animal Disease Research, National
Institute of Animal Health, National Agriculture and Food Research Organization, Ibaraki,
Japan
| | - Kotaro MATSUMOTO
- Department of Veterinary Medicine, Obihiro University of
Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - Shinya FUKUMOTO
- National Research Center for Protozoan Diseases, Obihiro
University of Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - Hidefumi FURUOKA
- Department of Veterinary Medicine, Obihiro University of
Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - Kunitoshi IMAI
- Department of Veterinary Medicine, Obihiro University of
Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - Nobuo KITAMURA
- Department of Veterinary Medicine, Obihiro University of
Agriculture and Veterinary Medicine, Hokkaido, Japan
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Li Z, Zhang YY, Zhang H, Yang J, Chen Y, Lu H. Asymmetric Cell Division and Tumor Heterogeneity. Front Cell Dev Biol 2022; 10:938685. [PMID: 35859890 PMCID: PMC9289117 DOI: 10.3389/fcell.2022.938685] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 06/13/2022] [Indexed: 11/20/2022] Open
Abstract
Asymmetric cell division (ACD) gives rise to two daughter cells with different fates after mitosis and is a fundamental process for generating cell diversity and for the maintenance of the stem cell population. The cancer stem cell (CSC) theory suggests that CSCs with dysregulated self-renewal and asymmetric cell division serve as a source of intra-tumoral heterogeneity. This heterogeneity complicates the diagnosis and treatment of cancer patients, because CSCs can give rise to aggressive clones that are metastatic and insensitive to multiple drugs, or to dormant tumor cells that are difficult to detect. Here, we review the regulatory mechanisms and biological significance of asymmetric division in tumor cells, with a focus on ACD-induced tumor heterogeneity in early tumorigenesis and cancer progression. We will also discuss how dissecting the relationship between ACD and cancer may help us find new approaches for combatting this heterogeneity.
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Affiliation(s)
- Zizhu Li
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ying Yi Zhang
- Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Haomiao Zhang
- School of Stomatology, Dalian Medical University, Dalian, China
| | - Jiaxuan Yang
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yongze Chen
- College of Biological Sciences, China Agricultural University, Beijing, China
| | - Hezhe Lu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- *Correspondence: Hezhe Lu,
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Hu WY, Hu DP, Xie L, Nonn L, Lu R, Abern M, Shioda T, Prins GS. Keratin Profiling by Single-Cell RNA-Sequencing Identifies Human Prostate Stem Cell Lineage Hierarchy and Cancer Stem-Like Cells. Int J Mol Sci 2021; 22:ijms22158109. [PMID: 34360875 PMCID: PMC8346986 DOI: 10.3390/ijms22158109] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 01/10/2023] Open
Abstract
Single prostate stem cells can generate stem and progenitor cells to form prostaspheres in 3D culture. Using a prostasphere-based label retention assay, we recently identified keratin 13 (KRT13)-enriched prostate stem cells at single-cell resolution, distinguishing them from daughter progenitors. Herein, we characterized the epithelial cell lineage hierarchy in prostaspheres using single-cell RNA-seq analysis. Keratin profiling revealed three clusters of label-retaining prostate stem cells; cluster I represents quiescent stem cells (PSCA, CD36, SPINK1, and KRT13/23/80/78/4 enriched), while clusters II and III represent active stem and bipotent progenitor cells (KRT16/17/6 enriched). Gene set enrichment analysis revealed enrichment of stem and cancer-related pathways in cluster I. In non-label-retaining daughter progenitor cells, three clusters were identified; cluster IV represents basal progenitors (KRT5/14/6/16 enriched), while clusters V and VI represent early and late-stage luminal progenitors, respectively (KRT8/18/10 enriched). Furthermore, MetaCore analysis showed enrichment of the “cytoskeleton remodeling–keratin filaments” pathway in cancer stem-like cells from human prostate cancer specimens. Along with common keratins (KRT13/23/80/78/4) in normal stem cells, unique keratins (KRT10/19/6C/16) were enriched in cancer stem-like cells. Clarification of these keratin profiles in human prostate stem cell lineage hierarchy and cancer stem-like cells can facilitate the identification and therapeutic targeting of prostate cancer stem-like cells.
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Affiliation(s)
- Wen-Yang Hu
- Department of Urology, University of Illinois at Chicago, Chicago, IL 60612, USA; (D.-P.H.); (L.X.); (R.L.); (M.A.); (G.S.P.)
- Correspondence:
| | - Dan-Ping Hu
- Department of Urology, University of Illinois at Chicago, Chicago, IL 60612, USA; (D.-P.H.); (L.X.); (R.L.); (M.A.); (G.S.P.)
| | - Lishi Xie
- Department of Urology, University of Illinois at Chicago, Chicago, IL 60612, USA; (D.-P.H.); (L.X.); (R.L.); (M.A.); (G.S.P.)
| | - Larisa Nonn
- Department of Pathology, University of Illinois at Chicago, Chicago, IL 60612, USA;
| | - Ranli Lu
- Department of Urology, University of Illinois at Chicago, Chicago, IL 60612, USA; (D.-P.H.); (L.X.); (R.L.); (M.A.); (G.S.P.)
| | - Michael Abern
- Department of Urology, University of Illinois at Chicago, Chicago, IL 60612, USA; (D.-P.H.); (L.X.); (R.L.); (M.A.); (G.S.P.)
| | - Toshihiro Shioda
- Massachusetts General Hospital Center for Cancer Research and Harvard Medical School, Charlestown, MA 02129, USA;
| | - Gail S. Prins
- Department of Urology, University of Illinois at Chicago, Chicago, IL 60612, USA; (D.-P.H.); (L.X.); (R.L.); (M.A.); (G.S.P.)
- Department of Pathology, University of Illinois at Chicago, Chicago, IL 60612, USA;
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5
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Witte KE, Hertel O, Windmöller BA, Helweg LP, Höving AL, Knabbe C, Busche T, Greiner JFW, Kalinowski J, Noll T, Mertzlufft F, Beshay M, Pfitzenmaier J, Kaltschmidt B, Kaltschmidt C, Banz-Jansen C, Simon M. Nanopore Sequencing Reveals Global Transcriptome Signatures of Mitochondrial and Ribosomal Gene Expressions in Various Human Cancer Stem-like Cell Populations. Cancers (Basel) 2021; 13:cancers13051136. [PMID: 33800955 PMCID: PMC7962028 DOI: 10.3390/cancers13051136] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Cancer is the leading cause of death in the industrialized world. In particular, so-called cancer stem cells (CSCs) play a crucial role in disease progression, as they are known to contribute to tumor growth and metastasis. Thus, CSCs are heavily investigated in a broad range of cancers. Nevertheless, global transcriptomic profiling of CSC populations derived from different tumor types is rare. We established three CSC populations from tumors in the uterus, brain, lung, and prostate and assessed their global transcriptomes using nanopore full-length cDNA sequencing, a new technique to assess insights into global gene profile. We observed common expression in all CSCs for distinct genes encoding proteins for organelles, such as ribosomes, mitochondria, and proteasomes. Additionally, we detected high expressions of inflammation- and immunity-related genes. Conclusively, we observed high similarities between all CSCs independent of their tumor of origin, which may build the basis for identifying novel therapeutic strategies targeting CSCs. Abstract Cancer stem cells (CSCs) are crucial mediators of tumor growth, metastasis, therapy resistance, and recurrence in a broad variety of human cancers. Although their biology is increasingly investigated within the distinct types of cancer, direct comparisons of CSCs from different tumor types allowing comprehensive mechanistic insights are rarely assessed. In the present study, we isolated CSCs from endometrioid carcinomas, glioblastoma multiforme as well as adenocarcinomas of lung and prostate and assessed their global transcriptomes using full-length cDNA nanopore sequencing. Despite the expression of common CSC markers, principal component analysis showed a distinct separation of the CSC populations into three clusters independent of the specific type of tumor. However, GO-term and KEGG pathway enrichment analysis revealed upregulated genes related to ribosomal biosynthesis, the mitochondrion, oxidative phosphorylation, and glycolytic pathways, as well as the proteasome, suggesting a great extent of metabolic flexibility in CSCs. Interestingly, the GO term “NF-kB binding” was likewise found to be elevated in all investigated CSC populations. In summary, we here provide evidence for high global transcriptional similarities between CSCs from various tumors, which particularly share upregulated gene expression associated with mitochondrial and ribosomal activity. Our findings may build the basis for identifying novel therapeutic strategies targeting CSCs.
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Affiliation(s)
- Kaya E. Witte
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, Universitätsstrasse 25, 33699 Bielefeld, Germany; (B.A.W.); (L.P.H.); (A.L.H.); (J.F.W.G.); (B.K.); (C.K.)
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
- Correspondence: ; Tel.: +49-521-106-5629
| | - Oliver Hertel
- Department of Cell Culture Technology, Faculty of Technology, University of Bielefeld, Universitätsstrasse 25, 33699 Bielefeld, Germany; (O.H.); (T.N.)
- Center for Biotechnology-CeBiTec, University of Bielefeld, Universitätsstrasse 27, 33699 Bielefeld, Germany; (T.B.); (J.K.)
| | - Beatrice A. Windmöller
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, Universitätsstrasse 25, 33699 Bielefeld, Germany; (B.A.W.); (L.P.H.); (A.L.H.); (J.F.W.G.); (B.K.); (C.K.)
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
| | - Laureen P. Helweg
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, Universitätsstrasse 25, 33699 Bielefeld, Germany; (B.A.W.); (L.P.H.); (A.L.H.); (J.F.W.G.); (B.K.); (C.K.)
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
| | - Anna L. Höving
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, Universitätsstrasse 25, 33699 Bielefeld, Germany; (B.A.W.); (L.P.H.); (A.L.H.); (J.F.W.G.); (B.K.); (C.K.)
- Heart and Diabetes Centre NRW, Institute for Laboratory and Transfusion Medicine, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
| | - Cornelius Knabbe
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
- Heart and Diabetes Centre NRW, Institute for Laboratory and Transfusion Medicine, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
| | - Tobias Busche
- Center for Biotechnology-CeBiTec, University of Bielefeld, Universitätsstrasse 27, 33699 Bielefeld, Germany; (T.B.); (J.K.)
| | - Johannes F. W. Greiner
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, Universitätsstrasse 25, 33699 Bielefeld, Germany; (B.A.W.); (L.P.H.); (A.L.H.); (J.F.W.G.); (B.K.); (C.K.)
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
| | - Jörn Kalinowski
- Center for Biotechnology-CeBiTec, University of Bielefeld, Universitätsstrasse 27, 33699 Bielefeld, Germany; (T.B.); (J.K.)
| | - Thomas Noll
- Department of Cell Culture Technology, Faculty of Technology, University of Bielefeld, Universitätsstrasse 25, 33699 Bielefeld, Germany; (O.H.); (T.N.)
- Center for Biotechnology-CeBiTec, University of Bielefeld, Universitätsstrasse 27, 33699 Bielefeld, Germany; (T.B.); (J.K.)
| | - Fritz Mertzlufft
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
- Scientific Director of the Protestant Hospital of Bethel Foundation, University Medical School OWL at Bielefeld, Bielefeld University, Campus Bielefeld-Bethel, Maraweg 21, 33699 Bielefeld, Germany
| | - Morris Beshay
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
- Department for Thoracic Surgery and Pneumology, Protestant Hospital of Bethel Foundation, University Medical School OWL at Bielefeld, Bielefeld University, Campus Bielefeld-Bethel, Burgsteig 13, 33699 Bielefeld, Germany
| | - Jesco Pfitzenmaier
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
- Department of Urology and Center for Computer-Assisted and Robotic Urology, Protestant Hospital of Bethel Foundation, University Medical School OWL at Bielefeld, Bielefeld University, Campus Bielefeld-Bethel, Burgsteig 13, 33699 Bielefeld, Germany
| | - Barbara Kaltschmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, Universitätsstrasse 25, 33699 Bielefeld, Germany; (B.A.W.); (L.P.H.); (A.L.H.); (J.F.W.G.); (B.K.); (C.K.)
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
- Molecular Neurobiology, Faculty of Biology, Bielefeld University, Universitätsstrasse 25, 33699 Bielefeld, Germany
| | - Christian Kaltschmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, Universitätsstrasse 25, 33699 Bielefeld, Germany; (B.A.W.); (L.P.H.); (A.L.H.); (J.F.W.G.); (B.K.); (C.K.)
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
| | - Constanze Banz-Jansen
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
- Department of Gynecology and Obstetrics, and Perinatal Center, Protestant Hospital of Bethel Foundation, University Medical School OWL at Bielefeld, Bielefeld University, Campus Bielefeld-Bethel, Burgsteig 13, 33699 Bielefeld, Germany
| | - Matthias Simon
- Forschungsverbund BioMedizin Bielefeld, OWL (FBMB e.V.), Maraweg 21, 33699 Bielefeld, Germany; (C.K.); (F.M.); (M.B.); (J.P.); (C.B.-J.); (M.S.)
- Department of Neurosurgery and Epilepsy Surgery, Protestant Hospital of Bethel Foundation, University Medical School OWL at Bielefeld, Bielefeld University, Campus Bielefeld-Bethel, Burgsteig 13, 33699 Bielefeld, Germany
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6
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Androgen Deprivation Induces Transcriptional Reprogramming in Prostate Cancer Cells to Develop Stem Cell-Like Characteristics. Int J Mol Sci 2020; 21:ijms21249568. [PMID: 33339129 PMCID: PMC7765584 DOI: 10.3390/ijms21249568] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 12/22/2022] Open
Abstract
Enzalutamide, an antiandrogen, is approved for therapy of castration resistant prostate cancer. Clinical applications have shown that approximately 30% of patients acquire resistance after a short period of treatment. However, the molecular mechanisms underlying this resistance is not completely understood. To identify transcriptomic signatures associated with acquisition of drug resistance we profiled gene expression of paired enzalutamide sensitive and resistant human prostate cancer LNCaP (lymph node carcinoma of the prostate) and C4-2B cells. Overlapping genes differentially regulated in the enzalutamide resistant cells were ranked by Ingenuity Pathway Analysis and their functional validation was performed using ingenuity knowledge database followed by confirmation to correlate transcript with protein expression. Analysis revealed that genes associated with cancer stem cells, such as POU5F1 (OCT4), SOX2, NANOG, BMI1, BMP2, CD44, SOX9, and ALDH1 were markedly upregulated in enzalutamide resistant cells. Amongst the pathways enriched in the enzalutamide-resistant cells were those associated with RUNX2, hedgehog, integrin signaling, and molecules associated with elastic fibers. Further examination of a patient cohort undergoing ADT and its comparison with no-ADT group demonstrated high expression of POU5F1 (OCT4), ALDH1, and SOX2 in ADT specimens, suggesting that they may be clinically relevant therapeutic targets. Altogether, our approach exhibits the potential of integrative transcriptomic analyses to identify critical genes and pathways of antiandrogen resistance as a promising approach for designing novel therapeutic strategies to circumvent drug resistance.
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7
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Wu X, Wang S, Li M, Li J, Shen J, Zhao Y, Pang J, Wen Q, Chen M, Wei B, Kaboli PJ, Du F, Zhao Q, Cho CH, Wang Y, Xiao Z, Wu X. Conditional reprogramming: next generation cell culture. Acta Pharm Sin B 2020; 10:1360-1381. [PMID: 32963937 PMCID: PMC7488362 DOI: 10.1016/j.apsb.2020.01.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 12/12/2022] Open
Abstract
Long-term primary culture of mammalian cells has been always difficult due to unavoidable senescence. Conventional methods for generating immortalized cell lines usually require manipulation of genome which leads to change of important biological and genetic characteristics. Recently, conditional reprogramming (CR) emerges as a novel next generation tool for long-term culture of primary epithelium cells derived from almost all origins without alteration of genetic background of primary cells. CR co-cultures primary cells with inactivated mouse 3T3-J2 fibroblasts in the presence of RHO-related protein kinase (ROCK) inhibitor Y-27632, enabling primary cells to acquire stem-like characteristics while retain their ability to fully differentiate. With only a few years' development, CR shows broad prospects in applications in varied areas including disease modeling, regenerative medicine, drug evaluation, drug discovery as well as precision medicine. This review is thus to comprehensively summarize and assess current progress in understanding mechanism of CR and its wide applications, highlighting the value of CR in both basic and translational researches and discussing the challenges faced with CR.
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Key Words
- 3T3-J2 fibroblast
- AACR, American Association for Cancer Research
- ACC, adenoid cystic carcinoma
- AR, androgen receptor
- CFTR, cystic fibrosis transmembrane conductance regulators
- CR, conditional reprogramming
- CYPs, cytochrome P450 enzymes
- Conditional reprogramming
- DCIS, ductal carcinoma in situ
- ECM, extracellular matrix
- ESC, embryonic stem cell
- HCMI, human cancer model initiatives
- HGF, hepatocyte growth factor
- HNE, human nasal epithelial
- HPV, human papillomaviruses
- ICD, intracellular domain
- LECs, limbal epithelial cells
- NCI, National Cancer Institute
- NGFR, nerve growth factor receptor
- NSCLC, non-small cell lung cancer
- NSG, NOD/SCID/gamma
- PDAC, pancreatic ductal adenocarcinoma
- PDX, patient derived xenograft
- PP2A, protein phosphatase 2A
- RB, retinoblastoma-associated protein
- ROCK
- ROCK, Rho kinase
- SV40, simian virus 40 large tumor antigen
- Senescence
- UVB, ultraviolet radiation b
- Y-27632
- dECM, decellularized extracellular matrix
- hASC, human adipose stem cells
- hTERT, human telomerase reverse transcriptase
- iPSCs, induction of pluripotent stem cells
- ΔNP63α, N-terminal truncated form of P63α
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Affiliation(s)
- Xiaoxiao Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
| | - Shengpeng Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Mingxing Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
| | - Jing Li
- Department of Oncology and Hematology, Hospital (T.C.M) Affiliated to Southwest Medical University, Luzhou 646000, China
| | - Jing Shen
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
| | - Yueshui Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
| | - Jun Pang
- Center of Radiation Oncology, Hospital (T.C.M) Affiliated to Southwest Medical University, Luzhou 646000, China
| | - Qinglian Wen
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou 646000, China
| | - Meijuan Chen
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
| | - Bin Wei
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Parham Jabbarzadeh Kaboli
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
| | - Fukuan Du
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
| | - Qijie Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
| | - Chi Hin Cho
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
- School of Biomedical Sciences, Faculty of Medicine, the Chinese University of Hong Kong, Hong Kong, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Zhangang Xiao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
| | - Xu Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- South Sichuan Institute of Translational Medicine, Luzhou 646000, China
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8
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Racial differences in prostate cancer: does timing of puberty play a role? Br J Cancer 2020; 123:349-354. [PMID: 32439935 PMCID: PMC7403332 DOI: 10.1038/s41416-020-0897-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/16/2020] [Accepted: 04/29/2020] [Indexed: 12/19/2022] Open
Abstract
The burden of prostate cancer has a remarkably disproportionate distribution across racial groups. For example, in the USA, African Americans are twice as likely as individuals of European ancestry to develop or die from prostate cancer, and have a more aggressive disease nature at diagnosis. In contrast, Asian American men have the lowest incidence and mortality rates of prostate cancer. That considerable racial disparities exist even in the subclinical stage of prostate cancer among young men in their 20–30s suggests that patterns of prostate carcinogenesis start to diverge even earlier, perhaps during puberty, when the prostate matures at its most rapid rate. Mendelian randomisation studies have provided strong population-based evidence supporting the hypothesis that earlier onset of puberty increases the risk of prostate cancer—particularly of high grade—and prostate cancer-specific mortality later in life, observations which correspond to the epidemiology of the disease in African Americans. Notably, African American boys initiate genital development ~1 year earlier and thus go through longer periods of pubertal maturation compared with European American boys. In this perspective, bringing together existing evidence, we point to puberty as a potential critical window of increased susceptibility to prostate carcinogenesis that could account for the marked prevailing racial differences in the burden of prostate cancer.
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9
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Majumdar S, Rinaldi JC, Malhotra NR, Xie L, Hu DP, Gauntner TD, Grewal HS, Hu WY, Kim SH, Katzenellenbogen JA, Kasper S, Prins GS. Differential Actions of Estrogen Receptor α and β via Nongenomic Signaling in Human Prostate Stem and Progenitor Cells. Endocrinology 2019; 160:2692-2708. [PMID: 31433456 PMCID: PMC6804489 DOI: 10.1210/en.2019-00177] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 08/15/2019] [Indexed: 12/21/2022]
Abstract
Human prostate stem and progenitor cells express estrogen receptor (ER)α and ERβ and exhibit proliferative responses to estrogens. In this study, membrane-initiated estrogen signaling was interrogated in human prostate stem/progenitor cells enriched from primary epithelial cultures and stem-like cell lines from benign and cancerous prostates. Subcellular fractionation and proximity ligation assays localized ERα and ERβ to the cell membrane with caveolin-1 interactions. Exposure to 17β-estradiol (E2) for 15 to 60 minutes led to sequential phosphorylation of signaling molecules in MAPK and AKT pathways, IGF1 receptor, epidermal growth factor receptor, and ERα, thus documenting an intact membrane signalosome that activates diverse downstream cascades. Treatment with an E2-dendrimer conjugate or ICI 182,870 validated E2-mediated actions through membrane ERs. Overexpression and knockdown of ERα or ERβ in stem/progenitor cells identified pathway selectivity; ERα preferentially activated AKT, whereas ERβ selectively activated MAPK cascades. Furthermore, prostate cancer stem-like cells expressed only ERβ, and brief E2 exposure activated MAPK but not AKT cascades. A gene subset selectively regulated by nongenomic E2 signaling was identified in normal prostate progenitor cells that includes BGN, FOSB, FOXQ1, and MAF. Membrane-initiated E2 signaling rapidly modified histone methyltransferases, with MLL1 cleavage observed downstream of phosphorylated AKT and EZH2 phosphorylation downstream of MAPK signaling, which may jointly modify histones to permit rapid gene transcription. Taken together, the present findings document ERα and ERβ membrane-initiated signaling in normal and cancerous human prostate stem/progenitor cells with differential engagement of downstream effectors. These signaling pathways influence normal prostate stem/progenitor cell homeostasis and provide novel therapeutic sites to target the elusive prostate cancer stem cell population.
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Affiliation(s)
- Shyama Majumdar
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Jaqueline C Rinaldi
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Department of Morphological Sciences, State University of Maringá, Maringá, Paraná, Brazil
| | - Neha R Malhotra
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Lishi Xie
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Dan-Ping Hu
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Timothy D Gauntner
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Harinder S Grewal
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Wen-Yang Hu
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Sung Hoon Kim
- Department of Chemistry, University of Illinois at Urbana–Champaign, Urbana, Illinois
| | | | - Susan Kasper
- Department of Environmental Health, University of Cincinnati, Cincinnati, Ohio
| | - Gail S Prins
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Chicago Center for Health and Environment, University of Illinois at Chicago, Chicago, Illinois
- University of Illinois Cancer Center, Chicago, Illinois
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10
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Tika E, Ousset M, Dannau A, Blanpain C. Spatiotemporal regulation of multipotency during prostate development. Development 2019; 146:dev.180224. [PMID: 31575645 PMCID: PMC6883376 DOI: 10.1242/dev.180224] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/13/2019] [Indexed: 12/23/2022]
Abstract
The prostate is formed by a branched glandular epithelium composed of basal cells (BCs) and luminal cells (LCs). Multipotent and unipotent stem cells (SCs) mediate the initial steps of prostate development whereas BCs and LCs are self-sustained in adult mice by unipotent lineage-restricted SCs. The spatiotemporal regulation of SC fate and the switch from multipotency to unipotency remain poorly characterised. Here, by combining lineage tracing, whole-tissue imaging, clonal analysis and proliferation kinetics, we uncover the cellular dynamics that orchestrate prostate postnatal development in mouse. We found that at an early stage of development multipotent basal SCs are located throughout the epithelium and are progressively restricted at the distal tip of the ducts, where, together with their progeny, they establish the different branches and the final structure of prostate. In contrast, pubertal development is mediated by unipotent lineage-restricted SCs. Our results uncover the spatiotemporal regulation of the switch from multipotency to unipotency during prostate development. Highlighted Article: A combination of lineage tracing and whole-mount imaging uncovers how the multipotency of basal stem cells is regulated during postnatal prostate development in mouse.
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Affiliation(s)
- Elisavet Tika
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles (ULB), Brussels 1070, Belgium
| | - Marielle Ousset
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles (ULB), Brussels 1070, Belgium
| | - Anne Dannau
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles (ULB), Brussels 1070, Belgium
| | - Cédric Blanpain
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles (ULB), Brussels 1070, Belgium .,WELBIO, Université Libre de Bruxelles, Brussels 1070, Belgium
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11
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Sandomenico A, Ruvo M. Targeting Nodal and Cripto-1: Perspectives Inside Dual Potential Theranostic Cancer Biomarkers. Curr Med Chem 2019; 26:1994-2050. [PMID: 30207211 DOI: 10.2174/0929867325666180912104707] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 07/13/2018] [Accepted: 07/17/2018] [Indexed: 12/25/2022]
Abstract
BACKGROUND Elucidating the mechanisms of recurrence of embryonic signaling pathways in tumorigenesis has led to the discovery of onco-fetal players which have physiological roles during normal development but result aberrantly re-activated in tumors. In this context, Nodal and Cripto-1 are recognized as onco-developmental factors, which are absent in normal tissues but are overexpressed in several solid tumors where they can serve as theranostic agents. OBJECTIVE To collect, review and discuss the most relevant papers related to the involvement of Nodal and Cripto-1 in the development, progression, recurrence and metastasis of several tumors where they are over-expressed, with a particular attention to their occurrence on the surface of the corresponding sub-populations of cancer stem cells (CSC). RESULTS We have gathered, rationalized and discussed the most interesting findings extracted from some 370 papers related to the involvement of Cripto-1 and Nodal in all tumor types where they have been detected. Data demonstrate the clear connection between Nodal and Cripto-1 presence and their multiple oncogenic activities across different tumors. We have also reviewed and highlighted the potential of targeting Nodal, Cripto-1 and the complexes that they form on the surface of tumor cells, especially of CSC, as an innovative approach to detect and suppress tumors with molecules that block one or more mechanisms that they regulate. CONCLUSION Overall, Nodal and Cripto-1 represent two innovative and effective biomarkers for developing potential theranostic anti-tumor agents that target normal as well as CSC subpopulations and overcome both pharmacological resistance and tumor relapse.
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Affiliation(s)
- Annamaria Sandomenico
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale delle Ricerche (IBB-CNR), via Mezzocannone, 16, 80134, Napoli, Italy
| | - Menotti Ruvo
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale delle Ricerche (IBB-CNR), via Mezzocannone, 16, 80134, Napoli, Italy
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12
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Abstract
Since the introduction of the cancer stem cell (CSC) hypothesis, accumulating evidence shows that most cancers present stem-like niches. However, therapies aimed at targeting this niche have not been as successful as expected. New evidence regarding CSCs hierarchy, similarities with normal tissue stem cells and cell plasticity might be key in understanding their role in cancer biology and how to efficiently eliminate them. In this Chapter, we discuss what is known in breast and prostate CSCs from their initial discoveries to the current therapeutic efforts in the field. Future challenges towards better CSC identification and isolation strategies will be key to shed light into how CSCs could accurately be targeted in combination to traditional therapies to ultimately prolong patient survival.
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Affiliation(s)
- Rocío G Sampayo
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, CA, United States
| | - Mina J Bissell
- Division of Biological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, CA, United States.
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13
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McAuley E, Moline D, VanOpstall C, Lamperis S, Brown R, Vander Griend DJ. Sox2 Expression Marks Castration-Resistant Progenitor Cells in the Adult Murine Prostate. Stem Cells 2019; 37:690-700. [PMID: 30720908 DOI: 10.1002/stem.2987] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/30/2018] [Accepted: 01/21/2019] [Indexed: 12/31/2022]
Abstract
Identification of defined epithelial cell populations with progenitor properties is critical for understanding prostatic development and disease. Here, we demonstrate that Sox2 expression is enriched in the epithelial cells of the proximal prostate adjacent to the urethra. We use lineage tracing of Sox2-positive cells during prostatic development, homeostasis, and regeneration to show that the Sox2 lineage is capable of self-renewal and contributes to prostatic regeneration. Persisting luminal cells express Sox2 after castration, highlighting a potential role for Sox2 in cell survival and castration-resistance. In addition to revealing a novel progenitor population in the prostate, these data implicate Sox2 as a regulatory factor of adult prostate epithelial stem cells. Stem Cells 2019;37:690-700.
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Affiliation(s)
- Erin McAuley
- The Committee on Molecular Pathogenesis and Molecular Medicine, The University of Chicago, Chicago, Illinois, USA
| | - Daniel Moline
- The Committee on Development, Regeneration, and Stem Cell Biology, The University of Chicago, Chicago, Illinois, USA
| | - Calvin VanOpstall
- The Committee on Cancer Biology, The University of Chicago, Chicago, Illinois, USA
| | - Sophia Lamperis
- Department of Surgery, Section of Urology, The University of Chicago, Chicago, Illinois, USA.,Department of Pathology, The University of Illinois at Chicago, Chicago, Illinois, USA
| | - Ryan Brown
- Department of Surgery, Section of Urology, The University of Chicago, Chicago, Illinois, USA.,Department of Pathology, The University of Illinois at Chicago, Chicago, Illinois, USA
| | - Donald J Vander Griend
- Department of Surgery, Section of Urology, The University of Chicago, Chicago, Illinois, USA.,Department of Pathology, The University of Illinois at Chicago, Chicago, Illinois, USA
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14
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Hmga2 regulation of tooth formation and association with Sox2 and Nanog expression. Biochem Biophys Res Commun 2019; 509:1008-1014. [DOI: 10.1016/j.bbrc.2019.01.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 01/04/2019] [Indexed: 01/01/2023]
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15
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Sarveswaran S, Varma NRS, Morisetty S, Ghosh J. Inhibition of 5-lipoxygenase downregulates stemness and kills prostate cancer stem cells by triggering apoptosis via activation of c-Jun N-terminal kinase. Oncotarget 2019; 10:424-436. [PMID: 30728896 PMCID: PMC6355185 DOI: 10.18632/oncotarget.13422] [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: 08/16/2016] [Accepted: 11/07/2016] [Indexed: 11/25/2022] Open
Abstract
The cancer stem cell (CSC) concept suggests that neoplastic clones are maintained exclusively by a rare group of cells possessed with stem cell properties. CSCs are characterized by features that include self-renewal, pluripotency and tumorigenicity, and are thought to be solely responsible for tumor recurrence and metastasis. A hierarchically organized CSC model is becoming increasingly evident for various types of cancer, including prostate cancer. The CD44 (+), CD133 (+) cell subpopulations were isolated from human prostate tumors which exhibit stem-like properties showing therapeutic-resistance, capacity of self-renewal, and exact recapitulation of the original tumor in vivo. Thus, an important challenge is to find measures to eliminate these cancer stem cells, which will stop tumor growth and prevent disease-recurrence. However, knowledge about molecular features critical for the survival of prostate cancer stem cells (PCSC) is meager. Here we report that inhibition of 5-lipoxygenase (5-Lox) by shRNA or MK591 dramatically kills PCSC by inducing apoptosis, suggesting that 5-Lox plays an essential role in the survival of PCSC. Interestingly, MK591 treatment decreases protein levels and inhibits transcriptional activities of Nanog and c-Myc. Since Nanog and c-Myc play important roles as stemness factors, our findings indicate that the 5-Lox activity plays a causal role in maintaining prostate cancer stemness via regulation of Nanog and c-Myc, and suggest that further exploration of 5-Lox-mediated signaling in PCSC may lead to development of novel, target-based, durable strategies to effectively block development and growth of prostate tumors, and prevent prostate cancer recurrence.
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Affiliation(s)
- Sivalokanathan Sarveswaran
- Vattikuti Urology Institute and Josephine Ford Cancer Center, Henry Ford Health System, Detroit, MI 48202, USA
| | - Nadimpalli R S Varma
- Vattikuti Urology Institute and Josephine Ford Cancer Center, Henry Ford Health System, Detroit, MI 48202, USA
| | - Shravan Morisetty
- Vattikuti Urology Institute and Josephine Ford Cancer Center, Henry Ford Health System, Detroit, MI 48202, USA
| | - Jagadananda Ghosh
- Vattikuti Urology Institute and Josephine Ford Cancer Center, Henry Ford Health System, Detroit, MI 48202, USA
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16
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Yu Y, Zhang Q, Ma C, Yang X, Lin R, Zhang H, Liu Y, Han Z, Cheng J. Mesenchymal stem cells recruited by castration-induced inflammation activation accelerate prostate cancer hormone resistance via chemokine ligand 5 secretion. Stem Cell Res Ther 2018; 9:242. [PMID: 30257726 PMCID: PMC6158918 DOI: 10.1186/s13287-018-0989-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 07/31/2018] [Accepted: 08/20/2018] [Indexed: 12/20/2022] Open
Abstract
Background Androgen deprivation (AD) as the first-line treatment for advanced prostate cancer (PCa) is insufficient for a long-term effect. Castration resistance remains the greatest obstacle in PCa clinical therapy. Mesenchymal stem cells (MSCs) can migrate into PCa tissues contributing to tumor progression, therefore, in this study we explored the effect of AD on MSC migration to PCa and elicited its importance for the emergence of castration resistance. Methods MSC migration assay was performed in several PCa cells (LNCaP, VCaP, and 22Rv1) using in-vivo and in-vitro approaches. Reactive oxygen species generation was evaluated by fluorescence assay. IL-1β was analyzed by immunohistochemistry, and neutralization experiments were conducted using neutralization antibody. Stem markers (CD133, CD44, and SOX2) were quantified by real-time PCR analysis. The concentration of chemokine ligand 5 was measured by enzyme-linked immunosorbent assay and small hairpin RNA was used for functional analyses. Results AD could significantly contribute to PCa recruitment of MSCs in vivo and in vitro. AD-induced oxidative stress could promote the inflammatory response mediated by IL-1β secretion via activating the NF-κB signaling pathway. Moreover, N-acetylcysteine could significantly inhibit MSC recruitment to PCa sites when AD is performed. Furthermore, we found MSCs could increase stemness of PCa cells via promoting chemokine ligand 5 secretion in the AD condition, and consequently accelerate emergence of castration resistance. Conclusions Our results suggest that castration in clinical PCa therapy may elicit oxidative stress in tumor sites, resulting in increased MSC migration and in tumor cell growth in an androgen-independent manner. Blocking MSC migration to the tumor may provide a new potential target to suppress castration-resistant PCa emergence. Electronic supplementary material The online version of this article (10.1186/s13287-018-0989-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yang Yu
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Qingyun Zhang
- Department of Urology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Chengzhong Ma
- Department of Urology, Guangxi International Zhuang Medicine Hospital, Nanning, 530021, China
| | - Xue Yang
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, 200438, China
| | - Rui Lin
- Department of Urology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Hongxiang Zhang
- Department of Urology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Yan Liu
- The Fifth Department of Chemotherapy, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Zhipeng Han
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, 200438, China
| | - Jiwen Cheng
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, China.
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17
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Oncogenic function of the homeobox A13-long noncoding RNA HOTTIP-insulin growth factor-binding protein 3 axis in human gastric cancer. Oncotarget 2017; 7:36049-36064. [PMID: 27144338 PMCID: PMC5094982 DOI: 10.18632/oncotarget.9102] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 04/11/2016] [Indexed: 12/11/2022] Open
Abstract
To study the mechanisms of gastric tumorigenesis, we have established CSN cell line from human normal gastric mucosa, and CS12, a tumorigenic and invasive gastric cancer cell line from CSN passages. Many stem cell markers were expressed in both CSN and CS12 cells, but LGR5 and NANOG were expressed only in CS12 cells. Increased expression of homeobox A13 (HoxA13) and its downstream cascades was significant for the tumorigenic activity of CS12 cells, and was associated with recruitment of E2F-1 to HoxA13 promoter accompanied with increased trimethylation of histone H3 lysine 4 (H3K4me3) at the hypomethylated E2F motifs. Knockdown of HoxA13 caused the downregulation of long non-coding RNA HOTTIP and insulin growth factor-binding protein 3 (IGFBP-3) genes, indicating that both were targets of HoxA13. Concurrent regulation of HoxA13-HOTTIP was mediated by the mixed lineage leukemia-WD repeat domain 5 complex, which caused the trimethylation of H3K4 and then stimulated cell proliferation. HoxA13 transactivated the IGFBP-3 promoter through the HOX-binding site. Activation of IGFBP-3 stimulated the oncogenic potential and invasion activity. Increased expression of HoxA13 (63.2%) and IGFBP-3 (28.6%) was detected in human gastric cancer tissues and was found in the gastric cancer data of The Cancer Genome Atlas. Taken together, the HoxA13–HOTTIP–IGFBP-3 cascade is critical for the carcinogenic characteristics of CS12 cells.
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18
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Zhao L, Li J, Liu M, Zhou H, Zou H, Wei Y, Sun K, Li G, Li S, Pang L. The clinicopathological parameters significance of CD133 and Nestin in epithelial ovarian cancer: a meta-analysis. Future Oncol 2017; 13:2555-2570. [PMID: 29168665 DOI: 10.2217/fon-2017-0256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
This meta-analysis was conducted to evaluate the association of CD133 and Nestin with epithelial ovarian cancer. Databases (PubMed, EMBASE, Web of Science, China National Knowledge Infrastructure, Wanfang) were searched for relevant studies updated in August 2017. CD133 and Nestin expression were estimated by immunohistochemistry. Statistical analysis was performed by RevMan. A total of 18 studies were included in this meta-analysis. High expression of both CD133 and Nestin was associated with late International Federation of Gynecology and Obstetrics stage (p < 0.00001), larger size of residual cancer (p < 0.05). CD133 overexpression was also associated with higher histological grade (p = 0.0006) and lymph node metastases (p < 0.00001). Nestin overexpression was associated with a higher rate of treatment resistance (p = 0.0007). Positive expression of CD133 and Nestin may be associated with aggressive biological behaviors in epithelial ovarian cancer.
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Affiliation(s)
- Lili Zhao
- Department of Pathology & Key Laboratory of Xinjiang Endemic & Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Pathology, the First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Jun Li
- Department of Ultrasound, the First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Manli Liu
- Department of Pathology & Key Laboratory of Xinjiang Endemic & Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Pathology, the First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Hongrun Zhou
- Department of Pathology & Key Laboratory of Xinjiang Endemic & Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Pathology, the First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Hong Zou
- Department of Pathology & Key Laboratory of Xinjiang Endemic & Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Pathology, the First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Yutao Wei
- Department of Thoracic & Cardiovascular Surgery, the First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Kunming Sun
- Department of Pathology & Key Laboratory of Xinjiang Endemic & Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Pathology, the First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Ganxiong Li
- Department of Pathology & Key Laboratory of Xinjiang Endemic & Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Pathology, the First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Shugang Li
- Department of Public Health, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Lijuan Pang
- Department of Pathology & Key Laboratory of Xinjiang Endemic & Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Pathology, the First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
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19
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Yun EJ, Lo UG, Hsieh JT. The evolving landscape of prostate cancer stem cell: Therapeutic implications and future challenges. Asian J Urol 2016; 3:203-210. [PMID: 29264188 PMCID: PMC5730868 DOI: 10.1016/j.ajur.2016.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 09/08/2016] [Accepted: 09/08/2016] [Indexed: 01/04/2023] Open
Abstract
Prostate cancer (PCa) is the most common cause of malignancy in males and the second leading cause of cancer mortality in United States. Current treatments for PCa include surgery, radiotherapy, and androgen-deprivation therapy. Eventually, PCa relapses to an advanced castration-resistant PCa (CRPC) that becomes a systematic disease and incurable. Therefore, identifying cellular components and molecular mechanisms that drive aggressive PCa at early stage is critical for disease prognosis and therapeutic intervention. One potential strategy for aggressive PCa is to target cancer stem cells (CSCs) that are identified by several unique characteristics such as immortal, self-renewal, and pluripotency. Also, CSC is believed to be a major factor contributing to resistance to radiotherapy and conventional chemotherapies. Moreover, CSCs are thought to be the critical cause of metastasis, tumor recurrence and cancer-related death of multiple cancer types, including PCa. In this review, we discuss recent progress made in understanding prostate cancer stem cells (PCSCs). We focus on the therapeutic strategies aimed at targeting specific surface markers of CSCs, the key signaling pathways in the maintenance of self-renewal capacity of CSCs, ATP-binding cassette (ABC) transporters that mediate the drug-resistance of CSCs, dysregulated microRNAs expression profiles in CSCs, and immunotherapeutic strategies developed against PCSCs surface markers.
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Affiliation(s)
- Eun-Jin Yun
- Department of Urology, UT Southwestern Medical Center, Dallas, TX, USA
| | - U-Ging Lo
- Department of Urology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Jer-Tsong Hsieh
- Department of Urology, UT Southwestern Medical Center, Dallas, TX, USA
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20
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Zhong B, Wang T, Zou J, Zheng F, Huang R, Zheng X, Yang W, Chen Z. Association of the intermediate filament nestin with cancer stage: a meta-analysis based on 223 positive/high nestin cases and 460 negative/low case-free controls. Oncotarget 2016; 6:22970-7. [PMID: 26015397 PMCID: PMC4673213 DOI: 10.18632/oncotarget.4042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 04/20/2015] [Indexed: 01/02/2023] Open
Abstract
Background Nestin, a member of the intermediate filament protein family, has been reported to be associated with several types of neoplastic transformation. However, questions remain, with studies reporting sometimes inconclusive or conflicting data. Thus, the aim of this study was to evaluate literature reports on the relationship between nestin and cancer stage. Methods Relevant articles published as of June 2014 were retrieved from multiple databases. After applying specific inclusion criteria, we chose seven articles relating to nestin expression and cancer stage, which included a total of 223 positive/high nestin cases and 460 negative/low case-free controls. Results Overall, positive/high nestin was significantly associated with median or advanced stages of several types of cancer (nestin and cancer stage: OR = 1.90, 95% CI = 1.30–2.78; nestin and lymph node: OR = 2.17, 95% CI = 1.26–3.72). Notably, studies relating to lung cancer (three qualifying articles) showed a significant association between nestin and lung cancer stage (OR = 2.00, 95% CI = 1.16–3.44). Conclusion These findings indicate that positive/high nestin may be more strongly linked to median or advanced cancer stage and correlated with malignant characteristics that lead to poor prognosis in different cancers, especially lung cancer.
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Affiliation(s)
- Beilong Zhong
- Department of Thoracic Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Tao Wang
- Center for Stem Cell Biology and Tissue Engineering, Sun Yat-sen University, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Guangzhou, Guangdong, China.,Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jianyong Zou
- Department of Thoracic Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Lung Cancer Research Center of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Fangfang Zheng
- Department of Pediatrics, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Rijiao Huang
- Department of Clinical Laboratory, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Xiaobin Zheng
- Department of Respiratory Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Weilin Yang
- Department of Cardiothoracic Surgery of East Division, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhenguang Chen
- Department of Thoracic Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Lung Cancer Research Center of Sun Yat-sen University, Guangzhou, Guangdong, China.,Department of Cardiothoracic Surgery of East Division, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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Hu DP, Hu WY, Xie L, Li Y, Birch L, Prins GS. Actions of Estrogenic Endocrine Disrupting Chemicals on Human Prostate Stem/Progenitor Cells and Prostate Carcinogenesis. ACTA ACUST UNITED AC 2016. [DOI: 10.2174/1874070701610010076] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Substantial evidences from epidemiological and animal-based studies indicate that early exposure to endocrine disrupting chemicals (EDCs) during the developmental stage results in a variety of disorders including cancer. Previous studies have demonstrated that early estrogen exposure results in life-long reprogramming of the prostate gland that leads to an increased incidence of prostatic lesions with aging. We have recently documented that bisphenol A (BPA), one of the most studied EDCs with estrogenic activity has similar effects in increasing prostate carcinogenic potential, supporting the connection between EDCs exposure and prostate cancer risk. It is well accepted that stem cells play a crucial role in development and cancer. Accumulating evidence suggest that stem cells are regulated by extrinsic factors and may be the potential target of hormonal carcinogenesis. Estrogenic EDCs which interfere with normal hormonal signaling may perturb prostate stem cell fate by directly reprogramming stem cells or breaking down the stem cell niche. Transformation of stem cells into cancer stem cells may underlie cancer initiation accounting for cancer recurrence, which becomes a critical therapeutic target of cancer management. We therefore propose that estrogenic EDCs may influence the development and progression of prostate cancer through reprogramming and transforming the prostate stem and early stage progenitor cells. In this review, we summarize our current studies and have updated recent advances highlighting estrogenic EDCs on prostate carcinogenesis by possible targeting prostate stem/progenitor cells. Using novel stem cell assays we have demonstrated that human prostate stem/progenitor cells express estrogen receptors (ER) and are directly modulated by estrogenic EDCs. Moreover, employing anin vivohumanized chimeric prostate model, we further demonstrated that estrogenic EDCs initiate and promote prostatic carcinogenesis in an androgen-supported environment. These findings support our hypothesis that prostate stem/progenitor cells may be the direct targets of estrogenic EDCs as a consequence of developmental exposure which carry permanent reprogrammed epigenetic and oncogenic events and subsequently deposit into cancer initiation and progression in adulthood.
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22
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Lv D, Lu L, Hu Z, Fei Z, Liu M, Wei L, Xu J. Nestin Expression Is Associated with Poor Clinicopathological Features and Prognosis in Glioma Patients: an Association Study and Meta-analysis. Mol Neurobiol 2016; 54:727-735. [DOI: 10.1007/s12035-016-9689-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 01/05/2016] [Indexed: 02/07/2023]
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Pelch KE, Tokar EJ, Merrick BA, Waalkes MP. Differential DNA methylation profile of key genes in malignant prostate epithelial cells transformed by inorganic arsenic or cadmium. Toxicol Appl Pharmacol 2015; 286:159-67. [PMID: 25922126 PMCID: PMC4461502 DOI: 10.1016/j.taap.2015.04.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 04/16/2015] [Accepted: 04/20/2015] [Indexed: 12/11/2022]
Abstract
Previous work shows altered methylation patterns in inorganic arsenic (iAs)- or cadmium (Cd)-transformed epithelial cells. Here, the methylation status near the transcriptional start site was assessed in the normal human prostate epithelial cell line (RWPE-1) that was malignantly transformed by 10μM Cd for 11weeks (CTPE) or 5μM iAs for 29weeks (CAsE-PE), at which time cells showed multiple markers of acquired cancer phenotype. Next generation sequencing of the transcriptome of CAsE-PE cells identified multiple dysregulated genes. Of the most highly dysregulated genes, five genes that can be relevant to the carcinogenic process (S100P, HYAL1, NTM, NES, ALDH1A1) were chosen for an in-depth analysis of the DNA methylation profile. DNA was isolated, bisulfite converted, and combined bisulfite restriction analysis was used to identify differentially methylated CpG sites, which was confirmed with bisulfite sequencing. Four of the five genes showed differential methylation in transformants relative to control cells that was inversely related to altered gene expression. Increased expression of HYAL1 (>25-fold) and S100P (>40-fold) in transformants was correlated with hypomethylation near the transcriptional start site. Decreased expression of NES (>15-fold) and NTM (>1000-fold) in transformants was correlated with hypermethylation near the transcriptional start site. ALDH1A1 expression was differentially expressed in transformed cells but was not differentially methylated relative to control. In conclusion, altered gene expression observed in Cd and iAs transformed cells may result from altered DNA methylation status.
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Affiliation(s)
- Katherine E Pelch
- National Toxicology Program Laboratory, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Erik J Tokar
- National Toxicology Program Laboratory, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - B Alex Merrick
- Molecular Toxicology and Informatics Group, Biomolecular Screening Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Morrisville, NC 27560, USA
| | - Michael P Waalkes
- National Toxicology Program Laboratory, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
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24
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Dendritic Cell-Based Immunotherapy Treatment for Glioblastoma Multiforme. BIOMED RESEARCH INTERNATIONAL 2015; 2015:717530. [PMID: 26167495 PMCID: PMC4488155 DOI: 10.1155/2015/717530] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 01/08/2015] [Indexed: 12/23/2022]
Abstract
Glioblastoma multiforme (GBM) is the most malignant glioma and patients diagnosed with this disease had poor outcomes even treated with the combination of conventional treatment (surgery, chemotherapy, and radiation). Dendritic cells (DCs) are the most powerful antigen presenting cells and DC-based vaccination has the potential to target and eliminate GBM cells and enhance the responses of these cells to the existing therapies with minimal damage to the healthy tissues around them. It can enhance recognition of GBM cells by the patients' immune system and activate vast, potent, and long-lasting immune reactions to eliminate them. Therefore, this therapy can prolong the survival of GBM patients and has wide and bright future in the treatment of GBM. Also, the efficacy of this therapy can be strengthened in several ways at some degree: the manipulation of immune regulatory components or costimulatory molecules on DCs; the appropriate choices of antigens for loading to enhance the effectiveness of the therapy; regulation of positive regulators or negative regulators in GBM microenvironment.
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25
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Karatas OF, Yuceturk B, Suer I, Yilmaz M, Cansiz H, Solak M, Ittmann M, Ozen M. Role of miR-145 in human laryngeal squamous cell carcinoma. Head Neck 2015; 38:260-6. [PMID: 26083661 DOI: 10.1002/hed.23890] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2014] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Laryngeal squamous cell carcinoma (SCC), being an aggressive malignancy, is one of the most commonly diagnosed malignant types of head and neck SCC worldwide. Incidences of laryngeal SCC have been reported to increase recently. In this study, we aimed to explore the biological effects of miR-145 on laryngeal cancer cells. METHODS The relative miR-145 level in laryngeal SCC tumor tissues and normal samples was investigated. Then, Hep-2 cells were utilized for functional analysis of miR-145. The proliferation abilities of transfected cells were measured using MTS assay. Scratch assay and single colony migration assay were performed to observe the alterations in migration behavior of transfected cells. Caspase assay and cell cycle analysis were used to investigate the underlying reasons of proliferative inhibition in cells in which miR-145 is overexpressed. Moreover, expression of SOX2 was analyzed using quantitative reverse transcription polymerase chain reaction (qRT-PCR) and Western blot analysis in Hep-2 cells upon miR-145 transfection and its expression was evaluated in tumor and normal tissue sample of the larynx. RESULTS The miR-145 expression in laryngeal SCC tumor samples has been shown to be downregulated. The miR-145 overexpression caused inhibition of proliferation and migration in Hep-2 cells through induction of apoptosis and cell cycle arrest. The SOX2 level was demonstrated to be overexpressed in tumor samples and its expression was significantly decreased in miR-145 overexpressed Hep-2 cells. CONCLUSION We have demonstrated the deregulation of miR-145 and SOX2 in laryngeal SCC. Based on these results, we propose that miR-145, as an important regulator of SOX2, carries crucial roles in laryngeal SCC tumorigenesis.
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Affiliation(s)
- Omer Faruk Karatas
- Department of Medical Genetics, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey.,Molecular Biology and Genetics Department, Erzurum Technical University, Erzurum, Turkey
| | - Betul Yuceturk
- Department of Medical Genetics, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey.,Advanced Genomics and Bioinformatics Research Center, The Scientific and Technological Research Council of Turkey (TUBITAK), Gebze, Kocaeli, Turkey
| | - Ilknur Suer
- Department of Medical Genetics, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Mehmet Yilmaz
- Department of Otorhinolaryngology, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Harun Cansiz
- Department of Otorhinolaryngology, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Mustafa Solak
- Department of Medical Genetics, Afyon Kocatepe University, Afyon, Turkey
| | - Michael Ittmann
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas
| | - Mustafa Ozen
- Department of Medical Genetics, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey.,Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas.,Department of Molecular Biology and Genetics, Biruni University, Topkapi, Istanbul, Turkey
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26
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Notas G, Pelekanou V, Kampa M, Alexakis K, Sfakianakis S, Laliotis A, Askoxilakis J, Tsentelierou E, Tzardi M, Tsapis A, Castanas E. Tamoxifen induces a pluripotency signature in breast cancer cells and human tumors. Mol Oncol 2015; 9:1744-59. [PMID: 26115764 DOI: 10.1016/j.molonc.2015.05.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 05/20/2015] [Indexed: 01/01/2023] Open
Abstract
Tamoxifen is the treatment of choice in estrogen receptor alpha breast cancer patients that are eligible for adjuvant endocrine therapy. However, ∼50% of ERα-positive tumors exhibit intrinsic or rapidly acquire resistance to endocrine treatment. Unfortunately, prediction of de novo resistance to endocrine therapy and/or assessment of relapse likelihood remain difficult. While several mechanisms regulating the acquisition and the maintenance of endocrine resistance have been reported, there are several aspects of this phenomenon that need to be further elucidated. Altered metabolic fate of tamoxifen within patients and emergence of tamoxifen-resistant clones, driven by evolution of the disease phenotype during treatment, appear as the most compelling hypotheses so far. In addition, tamoxifen was reported to induce pluripotency in breast cancer cell lines, in vitro. In this context, we have performed a whole transcriptome analysis of an ERα-positive (T47D) and a triple-negative breast cancer cell line (MDA-MB-231), exposed to tamoxifen for a short time frame (hours), in order to identify how early pluripotency-related effects of tamoxifen may occur. Our ultimate goal was to identify whether the transcriptional actions of tamoxifen related to induction of pluripotency are mediated through specific ER-dependent or independent mechanisms. We report that even as early as 3 hours after the exposure of breast cancer cells to tamoxifen, a subset of ERα-dependent genes associated with developmental processes and pluripotency are induced and this is accompanied by specific phenotypic changes (expression of pluripotency-related proteins). Furthermore we report an association between the increased expression of pluripotency-related genes in ERα-positive breast cancer tissues samples and disease relapse after tamoxifen therapy. Finally we describe that in a small group of ERα-positive breast cancer patients, with disease relapse after surgery and tamoxifen treatment, ALDH1A1 (a marker of pluripotency in epithelial cancers which is absent in normal breast tissue) is increased in relapsing tumors, with a concurrent modification of its intra-cellular localization. Our data could be of value in the discrimination of patients susceptible to develop tamoxifen resistance and in the selection of optimized patient-tailored therapies.
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Affiliation(s)
- George Notas
- Laboratories of Experimental Endocrinology, University of Crete School of Medicine, Heraklion, Greece; Institute of Applied Computational Mathematics, Foundation of Research and Technology (FORTH), Heraklion, Greece.
| | - Vassiliki Pelekanou
- Laboratories of Experimental Endocrinology, University of Crete School of Medicine, Heraklion, Greece; Laboratories of Pathology, University of Crete School of Medicine, Heraklion, Greece
| | - Marilena Kampa
- Laboratories of Experimental Endocrinology, University of Crete School of Medicine, Heraklion, Greece
| | - Konstantinos Alexakis
- Laboratories of Experimental Endocrinology, University of Crete School of Medicine, Heraklion, Greece
| | - Stelios Sfakianakis
- Institute of Computer Science, Foundation of Research and Technology (FORTH), Heraklion, Greece
| | - Aggelos Laliotis
- Department of Surgical Oncology, University Hospital, Heraklion, Greece
| | - John Askoxilakis
- Department of Surgical Oncology, University Hospital, Heraklion, Greece
| | | | - Maria Tzardi
- Laboratories of Pathology, University of Crete School of Medicine, Heraklion, Greece
| | - Andreas Tsapis
- Laboratories of Experimental Endocrinology, University of Crete School of Medicine, Heraklion, Greece; INSERM U976, Hôpital Saint Louis, Paris, France; University Paris Diderot, Paris, France
| | - Elias Castanas
- Laboratories of Experimental Endocrinology, University of Crete School of Medicine, Heraklion, Greece.
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Ozen M, Karatas OF, Gulluoglu S, Bayrak OF, Sevli S, Guzel E, Ekici ID, Caskurlu T, Solak M, Creighton CJ, Ittmann M. Overexpression of miR-145-5p inhibits proliferation of prostate cancer cells and reduces SOX2 expression. Cancer Invest 2015; 33:251-8. [PMID: 25951106 DOI: 10.3109/07357907.2015.1025407] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We aimed to perform functional analysis of miR-145-5p in prostate cancer (PCa) cells and to identify targets of miR-145-5p for understanding its role in PCa pathogenesis. PC3, DU145, LNCaP PCa, and PNT1a nontumorigenic prostate cell lines were utilized for functional analysis of miR-145-5p. Its overexpression caused inhibition of proliferation through apoptosis and reduced migration in PCa cells. SOX2 expression was significantly decreased in both mRNA and protein level in miR-145-5p-overexpressed PCa cells. We proposed that miR-145-5p, being an important regulator of SOX2, carries a crucial role in PCa tumorigenesis.
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Affiliation(s)
- Mustafa Ozen
- 1Department of Medical Genetics, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
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28
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Hedgehog and Resident Vascular Stem Cell Fate. Stem Cells Int 2015; 2015:468428. [PMID: 26064136 PMCID: PMC4438189 DOI: 10.1155/2015/468428] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 04/01/2015] [Indexed: 01/20/2023] Open
Abstract
The Hedgehog pathway is a pivotal morphogenic driver during embryonic development and a key regulator of adult stem cell self-renewal. The discovery of resident multipotent vascular stem cells and adventitial progenitors within the vessel wall has transformed our understanding of the origin of medial and neointimal vascular smooth muscle cells (SMCs) during vessel repair in response to injury, lesion formation, and overall disease progression. This review highlights the importance of components of the Hh and Notch signalling pathways within the medial and adventitial regions of adult vessels, their recapitulation following vascular injury and disease progression, and their putative role in the maintenance and differentiation of resident vascular stem cells to vascular lineages from discrete niches within the vessel wall.
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29
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Cao SG, Ming ZJ, Zhang YP, Yang SY. Sex-determining region of Y chromosome-related high-mobility-group box 2 in malignant tumors: current opinions and anticancer therapy. Chin Med J (Engl) 2015; 128:384-9. [PMID: 25635436 PMCID: PMC4837871 DOI: 10.4103/0366-6999.150112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE To gain insight into the mechanism by which sex-determining region of Y chromosome (SRY)-related high-mobility-group box 2 (SOX2) involved in carcinogenesis and cancer stem cells (CSCs). DATA SOURCES The data used in this review were mainly published in English from 2000 to present obtained from PubMed. The search terms were "SOX2," "cancer," "tumor" or "CSCs." STUDY SELECTION Articles studying the mitochondria-related pathologic mechanism and treatment of glaucoma were selected and reviewed. RESULTS SOX2, a transcription factor that is the key in maintaining pluripotent properties of stem cells, is a member of SRY-related high-mobility group domain proteins. SOX2 participates in many biological processes, such as modulation of cell proliferation, regulation of cell death signaling, cell apoptosis, and most importantly, tumor formation and development. Although SOX2 has been implicated in the biology of various tumors and CSCs, the findings are highly controversial, and information regarding the underlying mechanism remains limited. Moreover, the mechanism by which SOX2 involved in carcinogenesis and tumor progression is rather unclear yet. CONCLUSIONS Here, we review the important biological functions of SOX2 in different tumors and CSCs, and the function of SOX2 signaling in the pathobiology of neoplasia, such as Wnt/β-catenin signaling pathway, Hippo signaling pathway, Survivin signaling pathway, PI3K/Akt signaling pathway, and so on. Targeting towards SOX2 may be an effective therapeutic strategy for cancer therapy.
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Affiliation(s)
- Shi-Guang Cao
- Department of Respiratory Medicine, Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi 710004, China
| | - Zong-Juan Ming
- Department of Respiratory Medicine, Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi 710004, China
| | - Yu-Ping Zhang
- Department of Respiratory Medicine, Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi 710004, China
| | - Shuan-Ying Yang
- Department of Respiratory Medicine, Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi 710004, China
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30
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Nguyen ST, Nguyen HL, Pham VQ, Nguyen GT, Tran CDT, Phan NK, Pham PV. Targeting specificity of dendritic cells on breast cancer stem cells: in vitro and in vivo evaluations. Onco Targets Ther 2015; 8:323-34. [PMID: 25674007 PMCID: PMC4321654 DOI: 10.2147/ott.s77554] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Breast cancer is a leading cause of death in women, and almost all complications are due to chemotherapy resistance. Drug-resistant cells with stem cell phenotypes are thought to cause failure in breast cancer chemotherapy. Dendritic cell (DC) therapy is a potential approach to eradicate these cells. This study evaluates the specificity of DCs for breast cancer stem cells (BCSCs) in vitro and in vivo. BCSCs were enriched by a verapamil-resistant screening method, and reconfirmed by ALDH expression analysis and mammosphere assay. Mesenchymal stem cells (MSCs) were isolated from allogeneic murine bone marrow. DCs were induced from bone marrow-derived monocytes with 20 ng/mL GC-MSF and 20 ng/mL IL-4. Immature DCs were primed with BCSC- or MSC-derived antigens to make two kinds of mature DCs: BCSC-DCs and MSC-DCs, respectively. In vitro ability of BCSC-DCs and MSC-DCs with cytotoxic T lymphocytes (CTLs) to inhibit BCSCs was tested using the xCELLigence technique. In vivo, BCSC-DCs and MSC-DCs were transfused into the peripheral blood of BCSC tumor-bearing mice. The results show that in vitro BCSC-DCs significantly inhibited BCSC proliferation at a DC:CTL ratio of 1:40, while MSC-DCs nonsignificantly decreased BCSC proliferation. In vivo, tumor sizes decreased from 18.8% to 23% in groups treated with BCSC-DCs; in contrast, tumors increased 14% in the control group (RPMI 1640) and 47% in groups treated with MSC-DCs. The results showed that DC therapy could target and be specific to BCSCs. DCs primed with MSCs could trigger tumor growth. These results also indicate that DCs may be a promising therapy for treating drug-resistant cancer cells as well as cancer stem cells.
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Affiliation(s)
- Sinh Truong Nguyen
- Laboratory of Stem Cell Research and Application, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Huyen Lam Nguyen
- Laboratory of Stem Cell Research and Application, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Viet Quoc Pham
- Laboratory of Stem Cell Research and Application, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Giang Thuy Nguyen
- Laboratory of Stem Cell Research and Application, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Cuong Do-Thanh Tran
- Laboratory of Stem Cell Research and Application, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Ngoc Kim Phan
- Laboratory of Stem Cell Research and Application, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam ; Faculty of Biology, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Phuc Van Pham
- Laboratory of Stem Cell Research and Application, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam ; Faculty of Biology, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
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31
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Rynkiewicz NK, Fedele CG, Chiam K, Gupta R, Kench JG, Ooms LM, McLean CA, Giles GG, Horvath LG, Mitchell CA. INPP4B is highly expressed in prostate intermediate cells and its loss of expression in prostate carcinoma predicts for recurrence and poor long term survival. Prostate 2015; 75:92-102. [PMID: 25284366 DOI: 10.1002/pros.22895] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 08/19/2014] [Indexed: 01/30/2023]
Abstract
BACKGROUND Phosphoinositide 3-kinase (PI3K)/Akt pathway is frequently activated in prostate carcinoma due to the loss of tumor suppressor PTEN, which leads to increased Akt activity. Expression of INPP4B, another negative regulator of the PI3K/Akt pathway, is also reduced in prostate carcinoma. However, uncertainty exists regarding the association of INPP4B expression and biochemical and clinical relapse of prostate carcinoma. METHODS INPP4B expression in benign prostate acini was analyzed by co-immunofluorescence with cytokeratins (CK) 5, 8, 19, androgen receptor (AR), c-MET, chromogranin A and Ki67. INPP4B expression in prostate carcinoma was analyzed in two independent cohorts (n = 406). The association of INPP4B with biochemical and clinical prostate carcinoma relapse was assessed by Kaplan-Meier and Cox proportional hazards modeling. RESULTS INPP4B was expressed in luminal epithelium within benign ducts, and was highly expressed in CK5+/CK8+/CK19+/AR-/c-MET+/Ki67- intermediate cells in proliferative inflammatory atrophic acini. Overall, INPP4B expression was reduced in prostate carcinoma compared to benign epithelium. Absent/low INPP4B expression was associated with reduced biochemical relapse-free survival (P = 0.01) and increased risk of clinical relapse (P = 0.01). Absence of INPP4B expression was an independent predictor of clinical relapse free survival (P = 0.004) when modeled with Gleason score (P = 0.027) and pathologic stage (P = 0.07). CONCLUSIONS INPP4B is highly expressed in intermediate cells within proliferative inflammatory atrophic ducts, and expression is reduced in prostate carcinoma. Absence of INPP4B expression is associated with poor outcome following radical prostatectomy, and represents an independent prognostic marker of prostate carcinoma clinical recurrence.
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Affiliation(s)
- Natalie K Rynkiewicz
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
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Luo W, Rodriguez M, Valdez JM, Zhu X, Tan K, Li D, Siwko S, Xin L, Liu M. Lgr4 is a key regulator of prostate development and prostate stem cell differentiation. Stem Cells 2014; 31:2492-505. [PMID: 23897697 DOI: 10.1002/stem.1484] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 06/04/2013] [Accepted: 06/21/2013] [Indexed: 12/31/2022]
Abstract
Mechanisms modulating prostate cell fate determination remain unexplored. The leucine-rich repeat containing G-protein-coupled receptors (Lgr) have been identified as important stem cell markers in various tissues. Here, we investigated the roles of Lgr4/Gpr48 in prostate stem cells (PSCs) and development. Lgr4 was ubiquitously expressed during early prostate development prior to lineage specification, with adult expression restricted to a few basal cells (principally Lin(-)Sca1(+)CD49f(+)). Lgr4(-/-) mice had compromised branching morphogenesis and delayed epithelial differentiation, leading to decreased prostate size and impaired luminal cell function. In vitro prostate sphere culture revealed that Lgr4(-/-) Lin(-)/Sca1(+)/CD49f(+) cells failed to generate p63(low) cells, indicating a differentiation deficiency. Furthermore, Lgr4 ablation arrested PSC differentiation of in vivo kidney capsule prostate grafts, suggesting that Lgr4 modulates PSC properties independent of hormonal and mesenchymal effects. Analysis of neonatal prostates and prostate spheres revealed a decrease in Wnt, Sonic Hedgehog, and Notch1 expression in Lgr4(-/-) cells. Lgr4 loss blocked differentiation of prostate sphere p63(hi) cells to p63(low). Treatment with exogenous Sonic Hedgehog partially restored the differentiation of p63(hi) cells in Lgr4(-/-) spheres. Taken together, our data revealed the roles of Lgr4 in early prostate development and in stem cell differentiation through regulation of the Wnt, Notch, and Sonic Hedgehog signaling pathways.
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Affiliation(s)
- Weijia Luo
- Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, TexasA&M University Health Science Center, Houston, Texas, USA
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Lee DK, Liu Y, Liao L, Wang F, Xu J. The prostate basal cell (BC) heterogeneity and the p63-positive BC differentiation spectrum in mice. Int J Biol Sci 2014; 10:1007-17. [PMID: 25210499 PMCID: PMC4159692 DOI: 10.7150/ijbs.9997] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 07/27/2014] [Indexed: 12/23/2022] Open
Abstract
The prostate epithelium is composed of basal (BC), luminal (LEC), and neuroendocrine (NEC) cells. It is unclear how many subtypes of BCs in the prostate and which subtype of BCs contains the main stem cell niche in the adult prostate. Here we report seven BC subpopulations according to their p63, cytokeratin 14 (K14) and K5 expression patterns, including p63-positive/K14-negative/K5-negative (p63+/K14-/K5-), p63-/K14+/K5-, p63-/K14-/K5+, p63+/K14+/K5-, p63+/K14-/K5+, p63-/K14+/K5+, and p63+/K14+/K5+ BCs. We generated a p63-CreERT2 knock-in mouse line that expresses tamoxifen-inducible Cre activity in the p63-expressing cells, including the prostate BCs. We then crossbred this line with ROSA26R mice, and generated p63-CreERT2×ROSA26R bi-genic mice harboring the Cre-activated β-galactosidase reporter gene. We treated these bi-genic mice with tamoxifen to mark the p63+ BCs at different ages or under different hormonal conditions, and then traced the lineage differentiation of these genetically labeled BCs. We discovered that these p63+ BCs contain self-renewable stem cells in culture and efficiently differentiated into LECs, NECs and BCs in the postnatal, adult and re-generating mouse prostates. Therefore, BC population contains heterogeneous BCs that express different combinations of the p63, K14 and K5 differentiation markers. Because K14+ and K5+ BCs were previously shown to be extremely inefficient to produce LECs in adulthood, we propose that the p63+/K5-/K14- subpopulation of BCs contains most stem-like cells, especially in adult animals.
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Affiliation(s)
- Dong-Kee Lee
- 1. Department of Molecular and Cellular Biology, Houston, Texas, USA
| | - Yonghong Liu
- 1. Department of Molecular and Cellular Biology, Houston, Texas, USA; ; 2. Institute of Bioscience and Technology, Texas A&M University Health Science Center, Houston, TX, USA
| | - Lan Liao
- 1. Department of Molecular and Cellular Biology, Houston, Texas, USA
| | - Fen Wang
- 2. Institute of Bioscience and Technology, Texas A&M University Health Science Center, Houston, TX, USA
| | - Jianming Xu
- 1. Department of Molecular and Cellular Biology, Houston, Texas, USA; ; 3. Institute for Cancer Medicine, Luzhou Medical College, Luzhou, Sichuan, China
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Zhou J, Giridhar PV, Kasper S, Papautsky I. Modulation of rotation-induced lift force for cell filtration in a low aspect ratio microchannel. BIOMICROFLUIDICS 2014; 8:044112. [PMID: 25379097 PMCID: PMC4189218 DOI: 10.1063/1.4891599] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Accepted: 07/18/2014] [Indexed: 05/11/2023]
Abstract
Cell filtration is a critical step in sample preparation in many bioapplications. Herein, we report on a simple, filter-free, microfluidic platform based on hydrodynamic inertial migration. Our approach builds on the concept of two-stage inertial migration which permits precise prediction of microparticle position within the microchannel. Our design manipulates equilibrium positions of larger microparticles by modulating rotation-induced lift force in a low aspect ratio microchannel. Here, we demonstrate filtration of microparticles with extreme efficiency (>99%). Using multiple prostate cell lines (LNCaP and human prostate epithelial tumor cells), we show filtration from spiked blood, with 3-fold concentration and >83% viability. Results of a proliferation assay show normal cell division and suggest no negative effects on intrinsic properties. Considering the planar low-aspect-ratio structure and predictable focusing, we envision promising applications and easy integration with existing lab-on-a-chip systems.
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Affiliation(s)
- Jian Zhou
- BioMicroSystems Lab, Department of Electrical Engineering and Computing Systems, University of Cincinnati , Cincinnati, Ohio 45221, USA
| | - Premkumar Vummidi Giridhar
- Department of Environmental Health, College of Medicine, University of Cincinnati , Cincinnati, Ohio 45221, USA
| | - Susan Kasper
- Department of Environmental Health, College of Medicine, University of Cincinnati , Cincinnati, Ohio 45221, USA
| | - Ian Papautsky
- BioMicroSystems Lab, Department of Electrical Engineering and Computing Systems, University of Cincinnati , Cincinnati, Ohio 45221, USA
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Abstract
The cancer stem cell hypothesis postulates that a single stem-like cancer cell is able to produce all cancer cell types found in a tumor. These cells are also thought to be the causative agents of relapse following therapy. In order to confirm the importance of cancer stem cells in tumor formation and patient prognosis, their role in prostate cancer must be comprehensively studied. This review describes current methods and markers for isolating and characterizing prostate cancer stem cells, including assays for self-renewal, multipotency and resistance to therapy. In particular the advantages and limitations of these approaches are analyzed. The review will also examine novel methods for studying the lineage of cancer stem cells in vivo using transgenic mouse models. These lineage tracing approaches have significant advantages and, if a number of challenges can be addressed, offer great potential for understanding the significance of cancer stem cells in human prostate cancer.
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Ricci E, Mattei E, Dumontet C, Eaton CL, Hamdy F, van der Pluije G, Cecchini M, Thalmann G, Clezardin P, Colombel M. Increased expression of putative cancer stem cell markers in the bone marrow of prostate cancer patients is associated with bone metastasis progression. Prostate 2013; 73:1738-46. [PMID: 24115186 DOI: 10.1002/pros.22689] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Accepted: 12/03/2012] [Indexed: 01/25/2023]
Abstract
BACKGROUND The number of cells positive for the α-6 and α-2 integrin subunits and the c-Met receptor in primary tumors and bone biopsies from prostate cancer patients has been correlated with metastasis and disease progression. The objective of this study was to quantify disseminated tumour cells present in bone marrow in prostate cancer patients using specific markers and determine their correlation with metastasis and survival. METHODS Patients were included at different stage of prostate cancer disease, from localised to metastatic castration-resistant prostate cancer. Healthy men were used as a control group. Bone marrow samples were collected and nucleated cells separated. These were stained for CD45, α-2, α-6 integrin subunits and c-Met and samples were processed for analysis and quantification of CD45-/α2+/α6+/c-met + cells using flow cytometry. Clinical and pathological parameters were assessed and survival measured. Statistical analyses were made of associations between disease specific parameters, bone marrow flow cytometry data, prostate-specific antigen (PSA) progression free survival and bone metastases progression free survival. RESULTS For all markers, the presence of more than 0.1% positive cells in bone marrow aspirates was significantly associated with the risk of biochemical progression, the risk of developing metastasis and death from prostate cancer. CONCLUSIONS Quantification of cells carrying putative stem cell markers in bone marrow is a potential indicator of disease progression. Functional studies on isolated cells are needed to show more specifically their property for metastatic spread in prostate cancer.
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Affiliation(s)
- Estelle Ricci
- Service d'Urologie et Chirurgie de la Transplantation, Université Lyon 1, Lyon, France
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Petkova N, Hennenlotter J, Sobiesiak M, Todenhöfer T, Scharpf M, Stenzl A, Bühring HJ, Schwentner C. Surface CD24 distinguishes between low differentiated and transit-amplifying cells in the basal layer of human prostate. Prostate 2013; 73:1576-90. [PMID: 23836489 DOI: 10.1002/pros.22708] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 06/15/2013] [Indexed: 11/11/2022]
Abstract
BACKGROUND Benign prostatic hyperplasia (BPH) and prostate cancer (PCa) are common abnormalities in elderly men. It is considered that epithelial stem cells are involved in the etiology and development of both diseases. To distinguish aberrant from normal cells, the knowledge about primary epithelial stem/progenitor cells (ES/P) is essential. The aim of this study was to examine the role of surface markers to distinguish between different subsets of prostate basal epithelium. METHODS The expression pattern of prostate tissue single cell suspensions was analyzed by flow cytometry using different markers. Sorted cell populations were examined for their clonogenic capacity and the resulted colonies were analyzed with flow cytometry, Western blot, and qPCR for stem cell, basal, and luminal epithelium markers. Additionally, the histological localization of the examined markers was determined using immunofluorescence. RESULTS Using the combination of CD49f, Trop-2, and surface CD24, basal cell subsets with distinct differentiation capacities were dissected (CD49f(+) Trop-2(+) CD24(-) and CD49f(+) Trop-2(+) CD24(+) ). Although cells from the two subsets gave rise to similar basal colonies, qPCR of primary tissue revealed that higher levels of basal marker expression were detected in the CD49f(+) Trop-2(+) CD24(-) subset. Immunofluorescence analysis showed a prominent expression of CD24 by luminal and basal cells. CONCLUSIONS Subsets with distinct differentiation capacities within the basal epithelium (CD49f(+) Trop-2(+) CD24(-) and CD49f(+) Trop-2(+) CD24(+) ) can be distinguished in human prostate. CD24 is a marker expressed on the basal transit-amplifying cells (transition cells) and may play a role in the differentiation and migration of ES/P cells to the luminal layer. The knowledge of this mechanism is of relevance for treatment of both diseases.
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Affiliation(s)
- Neli Petkova
- Department of Urology, University Hospital Tuebingen, Tuebingen, Germany
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38
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Palmieri C, Riccardi E. Immunohistochemical expression of HOXA-13 in normal, hyperplastic and neoplastic canine prostatic tissue. J Comp Pathol 2013; 149:417-23. [PMID: 23809907 DOI: 10.1016/j.jcpa.2013.05.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 03/28/2013] [Accepted: 05/07/2013] [Indexed: 01/24/2023]
Abstract
Homeobox genes are known to be examples of the intimate relationship between embryogenesis and tumourigenesis. Specifically, the HOXA13 gene plays a fundamental role in the development of the urogenital tract and external genitalia and in prostate organogenesis. There are no reports on the expression of HOXA13 in normal, hyperplastic or neoplastic canine prostate tissue or in other types of tumours. Six normal, 16 hyperplastic and 12 neoplastic canine prostates were examined microscopically and immunohistochemically with a polyclonal antibody specific for human HOXA13. An immunohistochemical score was generated. HOXA13 was expressed in the cytoplasm of epithelial cells in normal, hyperplastic and neoplastic prostates. The percentage of immunolabelled cells in all prostatic carcinomas (PCs) was greatly increased, with a score of 85.3 (±5.25) compared with normal (2 ± 0.71) and hyperplastic prostates (6.08 ± 2.21). The increase in HOXA13 expression in canine PCs suggests the involvement of this transcription factor in carcinogenesis and promotion of tumour growth.
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Affiliation(s)
- C Palmieri
- School of Veterinary Science, University of Queensland, Gatton Campus, Gatton 4343, Queensland, Australia.
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Ammirante M, Kuraishy AI, Shalapour S, Strasner A, Ramirez-Sanchez C, Zhang W, Shabaik A, Karin M. An IKKα-E2F1-BMI1 cascade activated by infiltrating B cells controls prostate regeneration and tumor recurrence. Genes Dev 2013; 27:1435-40. [PMID: 23796898 DOI: 10.1101/gad.220202.113] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Androgen-deprived prostate cancer (PCa) is infiltrated by B lymphocytes that produce cytokines that activate IκB kinase α (IKKα) to accelerate the emergence of castration-resistant tumors. We now demonstrate that infiltrating B lymphocytes and IKKα are also required for androgen-dependent expansion of epithelial progenitors responsible for prostate regeneration. In these cells and in PCa cells, IKKα phosphorylates transcription factor E2F1 on a site that promotes its nuclear translocation, association with the coactivator CBP, and recruitment to critical genomic targets that include Bmi1, a key regulator of normal and cancerous prostate stem cell renewal. The IKKα-BMI1 pathway is also activated in human PCa.
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Affiliation(s)
- Massimo Ammirante
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology
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40
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Zhao H, Sun N, Young SR, Nolley R, Santos J, Wu JC, Peehl DM. Induced pluripotency of human prostatic epithelial cells. PLoS One 2013; 8:e64503. [PMID: 23717621 PMCID: PMC3661502 DOI: 10.1371/journal.pone.0064503] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Accepted: 04/15/2013] [Indexed: 12/14/2022] Open
Abstract
Induced pluripotent stem (iPS) cells are a valuable resource for discovery of epigenetic changes critical to cell type-specific differentiation. Although iPS cells have been generated from other terminally differentiated cells, the reprogramming of normal adult human basal prostatic epithelial (E-PZ) cells to a pluripotent state has not been reported. Here, we attempted to reprogram E-PZ cells by forced expression of Oct4, Sox2, c-Myc, and Klf4 using lentiviral vectors and obtained embryonic stem cell (ESC)-like colonies at a frequency of 0.01%. These E-PZ-iPS-like cells with normal karyotype gained expression of pluripotent genes typical of iPS cells (Tra-1-81, SSEA-3, Nanog, Sox2, and Oct4) and lost gene expression characteristic of basal prostatic epithelial cells (CK5, CK14, and p63). E-PZ-iPS-like cells demonstrated pluripotency by differentiating into ectodermal, mesodermal, and endodermal cells in vitro, although lack of teratoma formation in vivo and incomplete demethylation of pluripotency genes suggested only partial reprogramming. Importantly, E-PZ-iPS-like cells re-expressed basal epithelial cell markers (CD44, p63, MAO-A) in response to prostate-specific medium in spheroid culture. Androgen induced expression of androgen receptor (AR), and co-culture with rat urogenital sinus further induced expression of prostate-specific antigen (PSA), a hallmark of secretory cells, suggesting that E-PZ-iPS-like cells have the capacity to differentiate into prostatic basal and secretory epithelial cells. Finally, when injected into mice, E-PZ-iPS-like cells expressed basal epithelial cell markers including CD44 and p63. When co-injected with rat urogenital mesenchyme, E-PZ-iPS-like cells expressed AR and expression of p63 and CD44 was repressed. DNA methylation profiling identified epigenetic changes in key pathways and genes involved in prostatic differentiation as E-PZ-iPS-like cells converted to differentiated AR- and PSA-expressing cells. Our results suggest that iPS-like cells derived from prostatic epithelial cells are pluripotent and capable of prostatic differentiation; therefore, provide a novel model for investigating epigenetic changes involved in prostate cell lineage specification.
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Affiliation(s)
- Hongjuan Zhao
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Ning Sun
- Department of Medicine, Division of Cardiology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Sarah R. Young
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Rosalie Nolley
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Jennifer Santos
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Joseph C. Wu
- Department of Medicine, Division of Cardiology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Donna M. Peehl
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
- * E-mail:
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Zhou J, Giridhar PV, Kasper S, Papautsky I. Modulation of aspect ratio for complete separation in an inertial microfluidic channel. LAB ON A CHIP 2013; 13:1919-29. [PMID: 23529341 DOI: 10.1039/c3lc50101a] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Inertial microfluidics has been attracting considerable interest in recent years due to immensely promising applications in cell separations and sorting. Despite the intense attention, the moderate efficiencies and low purity of the reported devices have hindered their widespread acceptance. In this work, we report on a simple inertial microfluidic system with high efficiency (>99%) and purity (>90%). Our system builds on the concept of two-stage inertial migration which permits precise prediction of particle or cell position within the microchannel. Our design manipulates the inertial equilibrium positions by modulating channel aspect ratio to achieve a complete separation. Here, we successfully demonstrate a complete separation of particles and isolation of rare cells in blood spiked with human prostate epithelial tumor (HPET) cells. Based on the planar structure, large separation spacing and predictable focusing, we envision promising applications and easy integration of our system with existing lab-on-a-chip systems for cell separations.
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Affiliation(s)
- Jian Zhou
- BioMicroSystems Laboratory, School of Electronic and Computing Systems, University of Cincinnati, Cincinnati, OH, USA
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42
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Jin X, Jin X, Jung JE, Beck S, Kim H. Cell surface Nestin is a biomarker for glioma stem cells. Biochem Biophys Res Commun 2013; 433:496-501. [DOI: 10.1016/j.bbrc.2013.03.021] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Accepted: 03/06/2013] [Indexed: 12/24/2022]
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Zhou Y, Li S, Huang Q, Xie L, Zhu X. Nanog suppresses cell migration by downregulating thymosin β4 and Rnd3. J Mol Cell Biol 2013; 5:239-49. [PMID: 23329853 DOI: 10.1093/jmcb/mjt002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Nanog, Sox2, and Oct4 are key transcription factors critical for the pluripotency and self-renewal of embryonic stem (ES) cells. Their downregulations lead to differentiation, accompanied with changes in cell motility. Whether these factors impact cell motility directly, however, is not clear. Here we addressed this question by initially assessing their effect in non-stem cells. We found that the ectopic expression of Nanog, Sox2, or Oct4 markedly inhibited ECV304 cell migration. Detailed examinations revealed that Nanog induced disorganizations of the actin cytoskeleton and peripheral localizations of focal adhesions. These effects required its DNA-binding domain and are thus transcription dependent. Furthermore, thymosin β4 and Rnd3 were identified as its downstream targets. Their depletions in ECV304 cells by RNAi phenocopied the ectopic expression of Nanog in both cell motility and actin organization, whereas their ectopic expressions rescued the migration defect of Nanog overexpression. Both proteins were upregulated during mouse ES cell differentiation. Their levels in the pluripotent mouse P19 cells also increased upon Nanog ablation, coincident with an increase in cell motility. Moreover, persistent expression of Nanog in zebrafish embryos suppressed gastrulation and cell migration. These results indeed suggest a dual role of certain transcription factors in the orchestration of differentiation and motility.
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Affiliation(s)
- Yizhuo Zhou
- State Key Laboratory of Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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44
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Lu TL, Huang YF, You LR, Chao NC, Su FY, Chang JL, Chen CM. Conditionally ablated Pten in prostate basal cells promotes basal-to-luminal differentiation and causes invasive prostate cancer in mice. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 182:975-91. [PMID: 23313138 DOI: 10.1016/j.ajpath.2012.11.025] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 10/27/2012] [Accepted: 11/07/2012] [Indexed: 12/22/2022]
Abstract
Prostate glands comprise two major epithelial cell types: luminal and basal. Luminal cells have long been considered the cellular origin of prostate cancer (CaP). However, recent evidence from a prostate regeneration assay suggests that prostate basal cells can also give rise to CaP. Here, we characterize Pten-deficient prostate lesions arising from keratin 5-expressing basal cells in a temporally controlled system in mice. Pten-deficient prostate lesions arising from basal cells exhibited luminal phenotypes with higher invasiveness, and the cell fate of Pten-deficient basal cells was traced to neoplastic luminal cells. After temporally ablating Pten in keratin 8-expressing luminal cells, luminal-derived Pten-deficient prostate tumors exhibited slower disease progression, compared with basal-derived tumors, within 13 weeks after Pten ablation. Cellular proliferation was significantly increased in basal-derived versus luminal-derived Pten-deficient prostate lesions. Increased tumor invasion into the smooth muscle layer and aberrantly regulated aggressive signatures (Smad4 and Spp1) were identified exclusively in basal-derived Pten-deficient lesions. Interestingly, p63-expressing cells, which represent basal stem and progenitor cells of basal-derived Pten-deficient prostate lesions, were significantly increased, relative to cells of the luminal-derived prostate lesion. Furthermore, castration did not suppress cellular proliferation of either basal-derived or luminal-derived Pten-deficient prostate tumors. Taken together, our data suggest that, although prostate malignancy can originate from both basal and luminal populations, these two populations differ in aggressive potential.
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Affiliation(s)
- Tsai-Ling Lu
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
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45
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Kwak MK, Johnson DT, Zhu C, Lee SH, Ye DW, Luong R, Sun Z. Conditional deletion of the Pten gene in the mouse prostate induces prostatic intraepithelial neoplasms at early ages but a slow progression to prostate tumors. PLoS One 2013; 8:e53476. [PMID: 23308230 PMCID: PMC3540073 DOI: 10.1371/journal.pone.0053476] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 11/28/2012] [Indexed: 01/10/2023] Open
Abstract
The PTEN tumor suppressor gene is frequently inactivated in human prostate cancer. Using Osr1 (odd skipped related 1)-Cre mice, we generated a novel conditional Pten knockout mouse strain, PtenLoxP:Osr1-Cre. Conditional biallelic and monoallelic Pten knockout mice were viable. Deletion of Pten expression was detected in the prostate of PtenLoxP/LoxP:Osr1-Cre mice as early as 2 weeks of age. Intriguingly, PtenLoxP/LoxP:Osr1-Cre mice develop high-grade prostatic intraepithelial neoplasms (PINs) with high penetrance as early as one-month of age, and locally invasive prostatic tumors after 12-months of age. PtenLoxP/+:Osr1-Cre mice show only mild oncogenic changes after 8-weeks of age. Castration of PtenLoxP/LoxP:Osr1-Cre mice shows no significant regression of prostate tumors, although a shift of androgen receptor (AR) staining from the nuclei to cytoplasm is observed in Pten null tumor cells of castrated mice. Enhanced Akt activity is observed in Pten null tumor cells of castrated PtenLoxP/LoxP:Osr1-Cre. This study provides a novel mouse model that can be used to investigate a primary role of Pten in initiating oncogenic transformation in the prostate and to examine other genetic and epigenetic changes that are required for tumor progression in the mouse prostate.
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Affiliation(s)
- Mi Kyung Kwak
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
- Department of Genetics, Stanford University School of Medicine, Stanford, California, United States of America
| | - Daniel T. Johnson
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
- Department of Genetics, Stanford University School of Medicine, Stanford, California, United States of America
| | - Chunfang Zhu
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
- Department of Genetics, Stanford University School of Medicine, Stanford, California, United States of America
| | - Suk Hyung Lee
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
- Department of Genetics, Stanford University School of Medicine, Stanford, California, United States of America
| | - Ding-Wei Ye
- Department of Urology, Fudan University, Shanghai Cancer Center, Shanghai, People’s Republic of China
| | - Richard Luong
- Department of Comparative Medicine, Stanford University School of Medicine, Stanford, California, United States of America
| | - Zijie Sun
- Department of Urology, Stanford University School of Medicine, Stanford, California, United States of America
- Department of Genetics, Stanford University School of Medicine, Stanford, California, United States of America
- * E-mail:
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46
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The Functional Role of DAB2IP, a Homeostatic Factor, in Prostate Cancer. Prostate Cancer 2013. [DOI: 10.1007/978-1-4614-6828-8_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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47
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Conditionally reprogrammed cells represent a stem-like state of adult epithelial cells. Proc Natl Acad Sci U S A 2012; 109:20035-40. [PMID: 23169653 DOI: 10.1073/pnas.1213241109] [Citation(s) in RCA: 216] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The combination of irradiated fibroblast feeder cells and Rho kinase inhibitor, Y-27632, conditionally induces an indefinite proliferative state in primary mammalian epithelial cells. These conditionally reprogrammed cells (CRCs) are karyotype-stable and nontumorigenic. Because self-renewal is a recognized property of stem cells, we investigated whether Y-27632 and feeder cells induced a stem-like phenotype. We found that CRCs share characteristics of adult stem cells and exhibit up-regulated expression of α6 and β1 integrins, ΔNp63α, CD44, and telomerase reverse transcriptase, as well as decreased Notch signaling and an increased level of nuclear β-catenin. The induction of CRCs is rapid (occurs within 2 d) and results from reprogramming of the entire cell population rather than the selection of a minor subpopulation. CRCs do not overexpress the transcription factor sets characteristic of embryonic or induced pluripotent stem cells (e.g., Sox2, Oct4, Nanog, or Klf4). The induction of CRCs is also reversible, and removal of Y-27632 and feeders allows the cells to differentiate normally. Thus, when CRCs from ectocervical epithelium or tracheal epithelium are placed in an air-liquid interface culture system, the cervical cells form a well differentiated stratified squamous epithelium, whereas the tracheal cells form a ciliated airway epithelium. We discuss the diagnostic and therapeutic opportunities afforded by a method that can generate adult stem-like cells in vitro without genetic manipulation.
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48
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Multipotent and unipotent progenitors contribute to prostate postnatal development. Nat Cell Biol 2012; 14:1131-8. [PMID: 23064263 DOI: 10.1038/ncb2600] [Citation(s) in RCA: 170] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 09/07/2012] [Indexed: 01/03/2023]
Abstract
The prostate is a glandular epithelium composed of basal, luminal and neuroendocrine cells that originate from the urogenital sinus during embryonic development. After birth, the prostate keeps developing until the end of puberty. Here, we used inducible genetic lineage tracing experiments in mice to investigate the cellular hierarchy that governs prostate postnatal development. We found that prostate postnatal development is mediated by basal multipotent stem cells that differentiate into basal, luminal and neuroendocrine cells, as well as by unipotent basal and luminal progenitors. Clonal analysis of basal cells revealed the existence of bipotent and unipotent basal progenitors as well as basal cells already committed to the luminal lineage with intermediate cells co-expressing basal and luminal markers associated with this commitment step. The existence of multipotent basal progenitors during prostate postnatal development contrasts with the distinct pools of unipotent basal and luminal stem cells that mediate adult prostate regeneration. Our results uncover the cellular hierarchy acting during prostate development and will be instrumental in defining the cellular origin and the mechanisms underlying prostate cancer initiation.
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Abstract
The discovery of tumor-initiating cells endowed with stem-like features has added a further level of complexity to the pathobiology of neoplastic diseases. In the attempt of dissecting the functional properties of this uncommon cellular subpopulation, investigators are taking full advantage of a body of knowledge about adult stem cells, as the "cancer stem cell model" implies that tissue-resident stem cells are the target of the oncogenic process. It is emerging that a plethora of molecular mechanisms protect cancer stem cells (CSC) against chemotherapy- and radiotherapy-induced death stimuli. The ability of CSCs to survive stressful conditions is correlated, among others, with a multifaceted protection of genome integrity by a prompt activation of the DNA damage sensor and repair machinery. Nevertheless, many molecular-targeted agents directed against DNA repair effectors are in late preclinical or clinical development while the identification of predictive biomarkers of response coupled with the validation of robust assays for assessing biomarkers is paving the way for biology-driven clinical trials.
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Affiliation(s)
- Marcello Maugeri-Saccà
- Department of Hematology Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, Rome 00161, Italy.
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Matsuda Y, Kure S, Ishiwata T. Nestin and other putative cancer stem cell markers in pancreatic cancer. Med Mol Morphol 2012; 45:59-65. [PMID: 22718289 DOI: 10.1007/s00795-012-0571-x] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Accepted: 01/11/2012] [Indexed: 12/12/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with a high incidence of distant metastasis. Recent studies have shown that cancer stem cells (CSCs), which have the potential to self-renew and are pluripotent, are crucially important in cancer cell growth, invasion, metastasis, and recurrence. Recently, several CSC-specific markers for pancreatic cancer have been reported, including CD133, CD24, CD44, CXCR4, EpCAM, ABCG2, c-Met, ALDH-1, and nestin, but their use is controversial. Nestin is one of the class VI intermediate filament proteins and a marker of exocrine progenitors of normal pancreatic tissue. Activated mutations of K-ras in nestin-positive progenitors of pancreatic tissue have been reported to induce cell growth in vitro and induce the formation of precancerous pancreatic lesions. We have reported that downregulation of nestin in PDAC cells inhibits liver metastasis in vivo. Nestin may modulate the invasion and metastasis of nestin-positive progenitor cells during PDAC development and may serve as a novel target for suppressing invasion and metastasis in PDAC. In this review, we summarize what is known about the correlation between PDAC and CSC markers, including nestin.
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Affiliation(s)
- Yoko Matsuda
- Departments of Pathology and Integrative Oncological Pathology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
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