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Yu L, Toriseva M, Afshan S, Cangiano M, Fey V, Erickson A, Seikkula H, Alanen K, Taimen P, Ettala O, Nurmi M, Boström PJ, Kallajoki M, Tuomela J, Mirtti T, Beumer IJ, Nees M, Härkönen P. Increased Expression and Altered Cellular Localization of Fibroblast Growth Factor Receptor-Like 1 (FGFRL1) Are Associated with Prostate Cancer Progression. Cancers (Basel) 2022; 14:cancers14020278. [PMID: 35053442 PMCID: PMC8796033 DOI: 10.3390/cancers14020278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Prostate cancer (PCa) is one of the most frequently diagnosed malignancies in men. PCa is primarily regulated by androgens, but other mechanisms, such as fibroblast growth factor receptor (FGFR) signaling, are also involved. In some patients, PCa relapses after surgical removal of prostate, and androgen deprivation therapy (ADT) is used as the first-line treatment. Unfortunately, the patients often lose response to ADT and progress by other mechanisms to castration-resistant, currently non-curable PCa. In our study, we aimed to identify better diagnostic markers and therapeutic targets against PCa. We analyzed patient PCa tissue samples from radical prostatectomies and biopsies, and used physiologically relevant 3D organoids and mouse xenografts to study FGFR signaling in PCa. We found that FGFRL1, a protein belonging to the FGFR family, plays a role in PCa. Our results suggest that FGFRL1 has significant effects on PCa progression and has potential as a prognostic biomarker. Abstract Fibroblast growth factor receptors (FGFRs) 1–4 are involved in prostate cancer (PCa) regulation, but the role of FGFR-like 1 (FGFRL1) in PCa is unclear. FGFRL1 expression was studied by qRT-PCR and immunohistochemistry of patient tissue microarrays (TMAs) and correlated with clinical patient data. The effects of FGFRL1 knockdown (KD) in PC3M were studied in in vitro culture models and in mouse xenograft tumors. Our results showed that FGFRL1 was significantly upregulated in PCa. The level of membranous FGFRL1 was negatively associated with high Gleason scores (GSs) and Ki67, while increased cytoplasmic and nuclear FGFRL1 showed a positive correlation. Cox regression analysis indicated that nuclear FGFRL1 was an independent prognostic marker for biochemical recurrence after radical prostatectomy. Functional studies indicated that FGFRL1-KD in PC3M cells increases FGFR signaling, whereas FGFRL1 overexpression attenuates it, supporting decoy receptor actions of membrane-localized FGFRL1. In accordance with clinical data, FGFRL1-KD markedly suppressed PC3M xenograft growth. Transcriptomics of FGFRL1-KD cells and xenografts revealed major changes in genes regulating differentiation, ECM turnover, and tumor–stromal interactions associated with decreased growth in FGFRL1-KD xenografts. Our results suggest that FGFRL1 upregulation and altered cellular compartmentalization contribute to PCa progression. The nuclear FGFRL1 could serve as a prognostic marker for PCa patients.
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Affiliation(s)
- Lan Yu
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Mervi Toriseva
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Syeda Afshan
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Mario Cangiano
- GenomeScan, 2333 BZ Leiden, The Netherlands; (M.C.); (I.J.B.)
| | - Vidal Fey
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Andrew Erickson
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford 0X3 9DU, UK;
| | - Heikki Seikkula
- Department of Urology, University of Turku and Turku University Hospital, 20520 Turku, Finland; (H.S.); (O.E.); (M.N.); (P.J.B.)
| | - Kalle Alanen
- Department of Pathology, Turku University Hospital, 20520 Turku, Finland; (K.A.); (M.K.)
| | - Pekka Taimen
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
- Department of Pathology, Turku University Hospital, 20520 Turku, Finland; (K.A.); (M.K.)
| | - Otto Ettala
- Department of Urology, University of Turku and Turku University Hospital, 20520 Turku, Finland; (H.S.); (O.E.); (M.N.); (P.J.B.)
| | - Martti Nurmi
- Department of Urology, University of Turku and Turku University Hospital, 20520 Turku, Finland; (H.S.); (O.E.); (M.N.); (P.J.B.)
| | - Peter J. Boström
- Department of Urology, University of Turku and Turku University Hospital, 20520 Turku, Finland; (H.S.); (O.E.); (M.N.); (P.J.B.)
| | - Markku Kallajoki
- Department of Pathology, Turku University Hospital, 20520 Turku, Finland; (K.A.); (M.K.)
| | - Johanna Tuomela
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Tuomas Mirtti
- HUS Diagnostic Center and Research Program in Systems Oncology (ONCOSYS), Helsinki University Hospital and University of Helsinki, 00014 Helsinki, Finland;
| | - Inès J. Beumer
- GenomeScan, 2333 BZ Leiden, The Netherlands; (M.C.); (I.J.B.)
| | - Matthias Nees
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
- Department of Biochemistry and Molecular Biology, Medical University in Lublin, 20-093 Lublin, Poland
| | - Pirkko Härkönen
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
- Correspondence: ; Tel.: +358-40-7343520
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Valta M, Ylä-Pelto J, Lan Y, Kähkönen T, Taimen P, Boström PJ, Ettala O, Khan S, Paulin N, Elo LL, Koskinen PJ, Härkönen P, Tuomela J. Critical evaluation of the subcutaneous engraftments of hormone naïve primary prostate cancer. Transl Androl Urol 2020; 9:1120-1134. [PMID: 32676396 PMCID: PMC7354344 DOI: 10.21037/tau.2020.03.38] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Patient-derived xenografts (PDXs) are considered to better recapitulate the histopathological and molecular heterogeneity of human cancer than other preclinical models. Despite technological advances, PDX models from hormone naïve primary prostate cancer are scarce. We performed a detailed analysis of PDX methodology using a robust subcutaneous model and fresh tissues from patients with primary hormone naïve prostate cancer. Methods Clinical prostate tumor specimens (n=26, Gleason score 6-10) were collected from robotic-assisted laparoscopic radical prostatectomies at Turku University Hospital (Turku, Finland), cut into pieces, and implanted subcutaneously into 84 immunodeficient mice. Engraftments and the adjacent material from prostatic surgical specimens were compared using histology, immunohistochemistry and DNA sequencing. Results The probability of a successful engraftment correlated with the presence of carcinoma in the implanted tissue. Tumor take rate was 41%. Surprisingly, mouse hormone supplementation inhibited tumor take rate, whereas the degree of mouse immunodeficiency did not have an effect. Histologically, the engrafted tumors closely mimicked their parental tumors, and the Gleason grades and copy number variants of the engraftments were similar to those of their primary tumors. Expression levels of androgen receptor, prostate-specific antigen, and keratins were retained in engraftments, and a detailed genomic analysis revealed high fidelity of the engraftments with their corresponding primary tumors. However, in the second or third passage of tumors, the carcinoma areas were almost completely replaced by benign tissue with frequent degenerative or metaplastic changes. Conclusions Subcutaneous primary prostate engraftments preserve the phenotypic and genotypic landscape. Thus, they serve a potential model for personalized medicine and preclinical research but their use may be limited to the first passage.
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Affiliation(s)
- Maija Valta
- Institute of Biomedicine, University of Turku, Turku, Finland.,Division of Medicine, Turku City Hospital, Turku, Finland
| | - Jani Ylä-Pelto
- Institute of Biomedicine, University of Turku, Turku, Finland.,Department of Biology, University of Turku, Turku, Finland
| | - Yu Lan
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Tiina Kähkönen
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Pekka Taimen
- Institute of Biomedicine, University of Turku, Turku, Finland.,Department of Pathology, Turku University Hospital, Turku, Finland
| | - Peter J Boström
- Department of Urology, Turku University Hospital and University of Turku, Turku, Finland
| | - Otto Ettala
- Department of Urology, Turku University Hospital and University of Turku, Turku, Finland
| | - Sofia Khan
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Niklas Paulin
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Laura L Elo
- Institute of Biomedicine, University of Turku, Turku, Finland.,Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | | | - Pirkko Härkönen
- Institute of Biomedicine, University of Turku, Turku, Finland.,FICAN WEST Cancer Research Laboratory, University of Turku and Turku University Hospital, Turku, Finland
| | - Johanna Tuomela
- Institute of Biomedicine, University of Turku, Turku, Finland.,FICAN WEST Cancer Research Laboratory, University of Turku and Turku University Hospital, Turku, Finland
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Isali I, Al-Sadawi MAA, Qureshi A, Khalifa AO, Agrawal MK, Shukla S. Growth factors involve in cellular proliferation, differentiation and migration during prostate cancer metastasis. INTERNATIONAL JOURNAL OF CELL BIOLOGY AND PHYSIOLOGY 2019; 2:1-13. [PMID: 32259163 PMCID: PMC7133721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Growth factors play active role in cells proliferation, embryonic development regulation and cellular differentiation. Altered level growth factors promote malignant transformation of normal cells. There has been significant progress made in form of drugs, inhibitors and monoclonal antibodies against altered growth factor to treat the malignant form of cancer. Moreover, these altered growth factors in prostate cancer increases steroidal hormone levels, which promotes progression. Though this review we are highlighting the majorly involved growth factors in prostate carcinogenesis, this will enable to better design the therapeutic strategies to inhibit prostate cancer progression.
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Affiliation(s)
- Ilaha Isali
- Department of Urology, Case Western Reserve University, Cleveland, OH
| | | | - Arshna Qureshi
- Department of Anesthesiology, Case Western Reserve University, Cleveland, OH
| | - Ahmad O. Khalifa
- Department of Urology, Case Western Reserve University, Cleveland, OH
- Department of Urology, Menofia University, Shebin Al kom, Egypt
| | | | - Sanjeev Shukla
- Department of Urology, Case Western Reserve University, Cleveland, OH
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4
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da Silva RF, Dhar D, Raina K, Kumar D, Kant R, Cagnon VHA, Agarwal C, Agarwal R. Nintedanib inhibits growth of human prostate carcinoma cells by modulating both cell cycle and angiogenesis regulators. Sci Rep 2018; 8:9540. [PMID: 29934570 PMCID: PMC6014981 DOI: 10.1038/s41598-018-27831-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 06/11/2018] [Indexed: 02/07/2023] Open
Abstract
Prostate cancer (PCa) is the most common malignancy and second leading cause of cancer-related deaths in American men. Proliferating cells have higher need for nutrients and oxygen, triggering angiogenesis that plays a critical role in tumor growth, progression and metastasis. Consequently, immense focus has converged onto inhibitors of angiogenesis in cancer treatment, such as Nintedanib, which has shown exceptional antitumor activity via inhibiting cell proliferation and the resulting tumor growth, primarily due to its combined action on tumor cells, endothelial cells and pericytes. Accordingly, here we assessed both in vitro and in vivo efficacy of Nintedanib in PCa. The results showed that Nintedanib decreased cell viability in both androgen dependent- and -independent PCa cells, together with a decrease in cell motility and invasiveness. Nintedanib also reduced the expression of significant genes responsible for cell cycle progression. PCa PC3 xenograft-carrying nude mice treated with Nintedanib showed significantly decreased tumor volume and cell proliferation alongside diminished levels of pro-angiogenic molecules and blood vessel densities. In conclusion, we report that Nintedanib has strong efficacy against PCa in pre-clinical models via modulation of various pathways, and that it could be employed as a promising new strategy to manage PCa clinically.
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Affiliation(s)
- Raquel Frenedoso da Silva
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Deepanshi Dhar
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA
| | - Komal Raina
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA.,University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Dileep Kumar
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA
| | - Rama Kant
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA
| | - Valeria Helena Alves Cagnon
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Chapla Agarwal
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA.,University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Rajesh Agarwal
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA. .,University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
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5
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Lowes LE, Goodale D, Xia Y, Postenka C, Piaseczny MM, Paczkowski F, Allan AL. Epithelial-to-mesenchymal transition leads to disease-stage differences in circulating tumor cell detection and metastasis in pre-clinical models of prostate cancer. Oncotarget 2018; 7:76125-76139. [PMID: 27764810 PMCID: PMC5342801 DOI: 10.18632/oncotarget.12682] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 09/29/2016] [Indexed: 12/20/2022] Open
Abstract
Metastasis is the cause of most prostate cancer (PCa) deaths and has been associated with circulating tumor cells (CTCs). The presence of ≥5 CTCs/7.5mL of blood is a poor prognosis indicator in metastatic PCa when assessed by the CellSearch® system, the “gold standard” clinical platform. However, ~35% of metastatic PCa patients assessed by CellSearch® have undetectable CTCs. We hypothesize that this is due to epithelial-to-mesenchymal transition (EMT) and subsequent loss of necessary CTC detection markers, with important implications for PCa metastasis. Two pre-clinical assays were developed to assess human CTCs in xenograft models; one comparable to CellSearch® (EpCAM-based) and one detecting CTCs semi-independent of EMT status via combined staining with EpCAM/HLA (human leukocyte antigen). In vivo differences in CTC generation, kinetics, metastasis and EMT status were determined using 4 PCa models with progressive epithelial (LNCaP, LNCaP-C42B) to mesenchymal (PC-3, PC-3M) phenotypes. Assay validation demonstrated that the CellSearch®-based assay failed to detect a significant number (~40-50%) of mesenchymal CTCs. In vivo, PCa with an increasingly mesenchymal phenotype shed greater numbers of CTCs more quickly and with greater metastatic capacity than PCa with an epithelial phenotype. Notably, the CellSearch®-based assay captured the majority of CTCs shed during early-stage disease in vivo, and only after establishment of metastases were a significant number of undetectable CTCs present. This study provides important insight into the influence of EMT on CTC generation and subsequent metastasis, and highlights that novel technologies aimed at capturing mesenchymal CTCs may only be useful in the setting of advanced metastatic disease.
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Affiliation(s)
- Lori E Lowes
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western University, London ON, Canada
| | - David Goodale
- London Regional Cancer Program, London Health Sciences Centre, London ON, Canada
| | - Ying Xia
- London Regional Cancer Program, London Health Sciences Centre, London ON, Canada
| | - Carl Postenka
- London Regional Cancer Program, London Health Sciences Centre, London ON, Canada
| | - Matthew M Piaseczny
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western University, London ON, Canada
| | - Freeman Paczkowski
- London Regional Cancer Program, London Health Sciences Centre, London ON, Canada
| | - Alison L Allan
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western University, London ON, Canada.,Department of Oncology, Schulich School of Medicine and Dentistry, Western University, London ON, Canada.,London Regional Cancer Program, London Health Sciences Centre, London ON, Canada.,Lawson Health Research Institute, London ON, Canada
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6
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Campbell MJ. Bioinformatic approaches to interrogating vitamin D receptor signaling. Mol Cell Endocrinol 2017; 453:3-13. [PMID: 28288905 DOI: 10.1016/j.mce.2017.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/08/2017] [Accepted: 03/09/2017] [Indexed: 12/13/2022]
Abstract
Bioinformatics applies unbiased approaches to develop statistically-robust insight into health and disease. At the global, or "20,000 foot" view bioinformatic analyses of vitamin D receptor (NR1I1/VDR) signaling can measure where the VDR gene or protein exerts a genome-wide significant impact on biology; VDR is significantly implicated in bone biology and immune systems, but not in cancer. With a more VDR-centric, or "2000 foot" view, bioinformatic approaches can interrogate events downstream of VDR activity. Integrative approaches can combine VDR ChIP-Seq in cell systems where significant volumes of publically available data are available. For example, VDR ChIP-Seq studies can be combined with genome-wide association studies to reveal significant associations to immune phenotypes. Similarly, VDR ChIP-Seq can be combined with data from Cancer Genome Atlas (TCGA) to infer the impact of VDR target genes in cancer progression. Therefore, bioinformatic approaches can reveal what aspects of VDR downstream networks are significantly related to disease or phenotype.
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Affiliation(s)
- Moray J Campbell
- Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, 536 Parks Hall, The Ohio State University, Columbus, OH 43210, USA.
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Lin X, Song L, He D, Zeng X, Wu J, Luo W, Yang Q, Wang J, Wang T, Cai J, Lin Y, Lai F, Peng W, Wu X. An FGF8b-mimicking peptide with potent antiangiogenic activity. Mol Med Rep 2017; 16:894-900. [PMID: 28560418 DOI: 10.3892/mmr.2017.6651] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 01/18/2017] [Indexed: 11/06/2022] Open
Abstract
Fibroblast growth factor (FGF) 8b interacts with its receptors and promotes angiogenesis in hormone‑dependent tumors. In the present study, we demonstrated that a short peptide, termed 8b‑13, which mimics part of the FGF8b structure, significantly inhibited the proliferation and migration of human umbilical vein endothelial cells (HUVECs) triggered by FGF8b using 3‑(4,5‑dimethylthiazol‑2‑yl)‑2,5‑diphenyltetrazolium bromide (MTT), flow cytometry and an in vitro scratch assay. In addition, the findings from western blotting and reverse transcription‑quantitative polymerase chain reaction revealed that 8b‑13 appeared to counteract the effects of FGF8b on the expression of cyclin D1, the activation of signaling cascades, and the expression of proangiogenic factors; these actions may be involved in the mechanism underlying the inhibitory effects of 8b‑13 on FGF8b‑induced HUVEC proliferation and migration. The present results suggested that 8b‑13 may be considered a potent FGF8b antagonist with antiangiogenic activity, and may have potential as a novel therapeutic agent for the treatment of cancer characterized by abnormal FGF8b upregulation.
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Affiliation(s)
- Xiaomian Lin
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Li Song
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Dan He
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Xiangfeng Zeng
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Jianzhang Wu
- Department of Pharmacy, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Wu Luo
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Qi Yang
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Jizhong Wang
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Tianxiang Wang
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Jialong Cai
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Yanling Lin
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Fubin Lai
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Wentao Peng
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Xiaoping Wu
- Institute of Tissue Transplantation and Immunology, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and Key Laboratory of Molecule Immunology and Antibody Engineering of Guangdong Province, Jinan University, Guangzhou, Guangdong 510632, P.R. China
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da Silva RF, Nogueira-Pangrazi E, Kido LA, Montico F, Arana S, Kumar D, Raina K, Agarwal R, Cagnon VHA. Nintedanib antiangiogenic inhibitor effectiveness in delaying adenocarcinoma progression in Transgenic Adenocarcinoma of the Mouse Prostate (TRAMP). J Biomed Sci 2017; 24:31. [PMID: 28499383 PMCID: PMC5429557 DOI: 10.1186/s12929-017-0334-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 05/03/2017] [Indexed: 02/08/2023] Open
Abstract
Background In recent times, anti-cancer treatments have focused on Fibroblast Growth Factor (FGF) and Vascular-Endothelial Growth Factor (VEGF) pathway inhibitors so as to target tumor angiogenesis and cellular proliferation. One such drug is Nintedanib; the present study evaluated the effectiveness of Nintedanib treatment against in vitro proliferation of human prostate cancer (PCa) cell lines, and growth and progression of different grades of PCa lesions in pre-clinical PCa transgenic adenocarcinoma for the mouse prostate (TRAMP) model. Methods Both androgen-independent (LNCaP) and androgen-dependent (PC3) PCa cell lines were treated with a range of Nintedanib doses for 72 h, and effect on cell growth and expression of angiogenesis associated VEGF receptors was analyzed. In pre-clinical efficacy evaluation, male TRAMP mice starting at 8 and 12 weeks of age were orally-fed with vehicle control (10% Tween 20) or Nintedanib (10 mg/Kg/day in vehicle control) for 4 weeks, and sacrificed immediately after 4 weeks of drug treatment or sacrificed 6–10 weeks after stopping drug treatments. At the end of treatment schedule, mice were sacrificed and ventral lobe of prostate was excised along with essential metabolic organ liver, and subjected to histopathological and extensive molecular evaluations. Results The total cell number decreased by 56–80% in LNCaP and 45–93% in PC3 cells after 72 h of Nintedanib treatment at 2.5–25 μM concentrations. In pre-clinical TRAMP studies, Nintedanib led to a delay in tumor progression in all treatment groups; the effect was more pronounced when treatment was given at the beginning of the glandular lesion development and continued till study end. A decreased microvessel density and VEGF immunolocalization was observed, besides decreased expression of Androgen Receptor (AR), VEGFR-1 and FGFR-3 in some of the treated groups. No changes were observed in the histological liver analysis. Conclusions Nintedanib treatment was able to significantly decrease the growth of PCa cell lines and also delay growth and progression of PCa lesions to higher grades of malignancy (without inducing any hepatotoxic effects) in TRAMP mice. Furthermore, it was observed that Nintedanib intervention is more effective when administered during the early stages of neoplastic development, although the drug is capable of reducing cell proliferation even after treatment interruption.
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Affiliation(s)
- Raquel Frenedoso da Silva
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, Campinas, São Paulo, Brazil
| | - Ellen Nogueira-Pangrazi
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, Campinas, São Paulo, Brazil
| | - Larissa Akemi Kido
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, Campinas, São Paulo, Brazil
| | - Fabio Montico
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, Campinas, São Paulo, Brazil
| | - Sarah Arana
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Dileep Kumar
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Komal Raina
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Rajesh Agarwal
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Valéria Helena Alves Cagnon
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, Campinas, São Paulo, Brazil.
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Yu L, Toriseva M, Tuomala M, Seikkula H, Elo T, Tuomela J, Kallajoki M, Mirtti T, Taimen P, Boström PJ, Alanen K, Nurmi M, Nees M, Härkönen P. Increased expression of fibroblast growth factor 13 in prostate cancer is associated with shortened time to biochemical recurrence after radical prostatectomy. Int J Cancer 2016; 139:140-52. [DOI: 10.1002/ijc.30048] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Accepted: 02/03/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Lan Yu
- Department of Cell Biology and Anatomy; Institute of Biomedicine, University of Turku; Turku Finland
| | - Mervi Toriseva
- Department of Cell Biology and Anatomy; Institute of Biomedicine, University of Turku; Turku Finland
| | - Miikka Tuomala
- Department of Cell Biology and Anatomy; Institute of Biomedicine, University of Turku; Turku Finland
| | - Heikki Seikkula
- Department of Urology; Turku University Hospital; Turku Finland
| | - Teresa Elo
- Institute of Biotechnology; University of Helsinki; Helsinki Finland
| | - Johanna Tuomela
- Department of Cell Biology and Anatomy; Institute of Biomedicine, University of Turku; Turku Finland
| | | | - Tuomas Mirtti
- Department of Pathology; Helsinki University Hospital (HUSLAB) and Institute for Molecular Medicine Finland (FIMM), University of Helsinki; Helsinki Finland
| | - Pekka Taimen
- Department of Pathology; University of Turku; Turku Finland
| | | | - Kalle Alanen
- Department of Pathology; University of Turku; Turku Finland
| | - Martti Nurmi
- Department of Pathology; University of Turku; Turku Finland
| | - Matthias Nees
- Department of Cell Biology and Anatomy; Institute of Biomedicine, University of Turku; Turku Finland
- Turku Centre for Biotechnology; University of Turku; Turku Finland
| | - Pirkko Härkönen
- Department of Cell Biology and Anatomy; Institute of Biomedicine, University of Turku; Turku Finland
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Valta M, Fagerlund K, Suominen M, Halleen J, Tuomela J. Importance of microenvironment in preclinical models of breast and prostate cancer. World J Pharmacol 2015; 4:47-57. [DOI: 10.5497/wjp.v4.i1.47] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 11/18/2014] [Accepted: 01/19/2015] [Indexed: 02/06/2023] Open
Abstract
The majority of cancer drugs entering clinical trials fail to reach the market due to poor efficacy. Preclinical efficacy has been traditionally tested using subcutaneous xenograft models that are cheap, fast and easy to perform. However, these models lack the correct tumor microenvironment, leading to poor clinical predictivity. Selecting compounds for clinical trials based on efficacy results obtained from subcutaneous xenograft models may therefore be one important reason for the high failure rates. In this review we concentrate in describing the role and importance of the tumor microenvironment in progression of breast and prostate cancer, and describe some breast and prostate cancer cell lines that are widely used in preclinical studies. We go through different preclinical efficacy models that incorporate the tissue microenvironment and should therefore be clinically more predictive than subcutaneous xenografts. These include three-dimensional cell culture models, orthotopic and metastasis models, humanized and transgenic mouse models, and patient-derived xenografts. Different endpoint measurements and applicable imaging techniques are also discussed. We conclude that models that incorporate the tissue microenvironment should be increasingly used in preclinical efficacy studies to reduce the current high attrition rates of cancer drugs in clinical trials.
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11
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Tumor models for prostate cancer exemplified by fibroblast growth factor 8-induced tumorigenesis and tumor progression. Reprod Biol 2014; 14:16-24. [PMID: 24607251 DOI: 10.1016/j.repbio.2014.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Accepted: 01/06/2014] [Indexed: 12/29/2022]
Abstract
Prostate cancer is a very common malignancy among Western males. Although most tumors are indolent and grow slowly, some grow and metastasize aggressively. Because prostate cancer growth is usually androgen-dependent, androgen ablation offers a therapeutic option to treat post-resection tumor recurrence or primarily metastasized prostate cancer. However, patients often relapse after the primary response to androgen ablation therapy, and there is no effective cure for cases of castration-resistant prostate cancer (CRPC). The mechanisms of tumor growth in CRPC are poorly understood. Although the androgen receptors (ARs) remain functional in CRPC, other mechanisms are clearly activated (e.g., disturbed growth factor signaling). Results from our laboratory and others have shown that dysregulation of fibroblast growth factor (FGF) signaling, including FGF receptor 1 (FGFR1) activation and FGF8b overexpression, has an important role in prostate cancer growth and progression. Several experimental models have been developed for prostate tumorigenesis and various stages of tumor progression. These models include genetically engineered mice and rats, as well as induced tumors and xenografts in immunodeficient mice. The latter was created using parental and genetically modified cell lines. All of these models greatly helped to elucidate the roles of different genes in prostate carcinogenesis and tumor progression. Recently, patient-derived xenografts have been studied for possible use in testing individual, specific responses of tumor tissue to different treatment options. Feasible and functional CRPC models for drug responsiveness analysis and the development of effective therapies targeting the FGF signaling pathway and other pathways in prostate cancer are being actively investigated.
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12
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Mallett CL, Lim H, Thind K, Chen Y, Ribot EJ, Martinez F, Scholl TJ, Foster PJ. Longitudinal anatomical and metabolic MRI characterization of orthotopic xenograft prostate tumors in nude mice. J Magn Reson Imaging 2013; 40:848-56. [PMID: 24924594 DOI: 10.1002/jmri.24433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 09/01/2013] [Indexed: 01/04/2023] Open
Abstract
PURPOSE To assess anatomic and functional magnetic resonance imaging (MRI) for monitoring of tumor volume and metabolism of orthotopic xenograft prostate cancer tumors. MATERIALS AND METHODS Human-derived PC-3M cells were implanted into the prostate in 22 nude mice. Tumor volume and MRI appearance were monitored for up to 29 days. Histology was performed to detect metastases. Hyperpolarized [1-(13) C]pyruvate MRI was used to measure tumor metabolism on day 22. RESULTS Tumors were visible by MRI 9 days after tumor cell implantation. Tumor volume increased to 720 ± 190 mm(3) on day 29 of imaging. Metastasis was seen in the iliac lymph nodes at all timepoints, and in more distant lymph nodes at later timepoints, but was not detectable by MRI. Regions with low pyruvate uptake corresponded to regions with necrosis and had a higher lactate/pyruvate ratio (0.98 ± 0.4 vs. 1.6 ± 1.1). CONCLUSION MRI using the balanced steady-state free precession (bSSFP) sequence can be used to monitor tumor growth in orthotopic PC-3M tumors as early as 9 days post-injection. Hyperpolarized pyruvate MRI has potential to assess tumor metabolism and necrosis.
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Affiliation(s)
- Christiane L Mallett
- Imaging Research Laboratories, Robarts Research Institute, London, Ontario, Canada; Department of Medical Biophysics, Western University, London, Ontario, Canada
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13
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A short peptide derived from the gN helix domain of FGF8b suppresses the growth of human prostate cancer cells. Cancer Lett 2013; 339:226-36. [DOI: 10.1016/j.canlet.2013.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 05/25/2013] [Accepted: 06/02/2013] [Indexed: 11/21/2022]
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14
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Wang W, Chen X, Li T, Li Y, Wang R, He D, Luo W, Li X, Wu X. Screening a phage display library for a novel FGF8b-binding peptide with anti-tumor effect on prostate cancer. Exp Cell Res 2013; 319:1156-64. [DOI: 10.1016/j.yexcr.2013.02.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 02/01/2013] [Accepted: 02/02/2013] [Indexed: 10/27/2022]
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15
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Väänänen RM, Lilja H, Cronin A, Kauko L, Rissanen M, Kauko O, Kekki H, Vidbäck S, Nurmi M, Alanen K, Pettersson K. Association of transcript levels of 10 established or candidate-biomarker gene targets with cancerous versus non-cancerous prostate tissue from radical prostatectomy specimens. Clin Biochem 2013; 46:670-4. [PMID: 23391636 DOI: 10.1016/j.clinbiochem.2013.01.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 01/10/2013] [Accepted: 01/27/2013] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The benefits of PSA (prostate specific antigen)-testing in prostate cancer remain controversial with a consequential need for validation of additional biomarkers. We used highly standardized reverse-transcription (RT)-PCR assays to compare transcript levels of 10 candidate cancer marker genes - BMP6, FGF-8b, KLK2, KLK3, KLK4, KLK15, MSMB, PCA3, PSCA and Trpm8 - in carefully ascertained non-cancerous versus cancerous prostate tissue from patients with clinically localized prostate cancer treated by radical prostatectomy. DESIGN AND METHODS Total RNA was isolated from fresh frozen prostate tissue procured immediately after resection from two separate areas in each of 87 radical prostatectomy specimens. Subsequent histopathological assessment classified 86 samples as cancerous and 88 as histologically benign prostate tissue. Variation in total RNA recovery was accounted for by using external and internal standards and enabled us to measure transcript levels by RT-PCR in a highly quantitative manner. RESULTS Of the ten genes, there were significantly higher levels only of one of the less abundant transcripts, PCA3, in cancerous versus non-cancerous prostate tissue whereas PSCA mRNA levels were significantly lower in cancerous versus histologically benign tissue. Advanced pathologic stage was associated with significantly higher expression of KLK15 and PCA3 mRNAs. Median transcript levels of the most abundantly expressed genes (i.e. MSMB, KLK3, KLK4 and KLK2) in prostate tissue were up to 10(5)-fold higher than those of other gene targets. CONCLUSIONS PCA3 expression was associated with advanced pathological stage but the magnitude of overexpression of PCA3 in cancerous versus non-cancerous prostate tissue was modest compared to previously reported data.
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Elo T, Sipilä P, Valve E, Kujala P, Toppari J, Poutanen M, Härkönen P. Fibroblast Growth Factor 8b Causes Progressive Stromal and Epithelial Changes in the Epididymis and Degeneration of the Seminiferous Epithelium in the Testis of Transgenic Mice1. Biol Reprod 2012; 86:157, 1-12. [DOI: 10.1095/biolreprod.111.097352] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Abstract
Polyunsaturated fatty acids (PUFA) play important roles in the normal physiology and in pathological states including inflammation and cancer. While much is known about the biosynthesis and biological activities of eicosanoids derived from ω6 PUFA, our understanding of the corresponding ω3 series lipid mediators is still rudimentary. The purpose of this review is not to offer a comprehensive summary of the literature on fatty acids in prostate cancer but rather to highlight some of the areas where key questions remain to be addressed. These include substrate preference and polymorphic variants of enzymes involved in the metabolism of PUFA, the relationship between de novo lipid synthesis and dietary lipid metabolism pathways, the contribution of cyclooxygenases and lipoxygenases as well as terminal synthases and prostanoid receptors in prostate cancer, and the potential role of PUFA in angiogenesis and cell surface receptor signaling.
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Lifeng Z, Yan H, Dayun Y, Xiaoying L, Tingfei X, Deyuan Z, Ying H, Jinfeng Y. The underlying biological mechanisms of biocompatibility differences between bare and TiN-coated NiTi alloys. Biomed Mater 2011; 6:025012. [PMID: 21441653 DOI: 10.1088/1748-6041/6/2/025012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
TiN coating has been demonstrated to improve the biocompatibility of bare NiTi alloys; however, essential biocompatibility differences between NiTi alloys before and after TiN coating are not known so far. In this study, to explore the underlying biological mechanisms of biocompatibility differences between them, the changes of bare and TiN-coated NiTi alloys in surface chemical composition, morphology, hydrophilicity, Ni ions release, cytotoxicity, apoptosis, and gene expression profiles were compared using energy-dispersive spectroscopy, scanning electron microscopy, contact angle, surface energy, Ni ions release analysis, the methylthiazoltetrazolium (MTT) method, flow cytometry and microarray methods, respectively. Pathways binding to networks and real-time polymerase chain reaction (PCR) were employed to analyze and validate the microarray data, respectively. It was found that, compared with the bare NiTi alloys, TiN coating significantly decreased Ni ions content on the surfaces of the NiTi alloys and reduced the release of Ni ions from the alloys, attenuated the inhibition of Ni ions to the expression of genes associated with anti-inflammatory, and also suppressed the promotion of Ni ions to the expression of apoptosis-related genes. Moreover, TiN coating distinctly improved the hydrophilicity and uniformity of the surfaces of the NiTi alloys, and contributed to the expression of genes participating in cell adhesion and other physiological activities. These results indicate that the TiN-coated NiTi alloys will help overcome the shortcomings of NiTi alloys used in clinical application currently, and can be expected to be a replacement of biomaterials for a medical device field.
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Affiliation(s)
- Zhao Lifeng
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
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Stromal activation associated with development of prostate cancer in prostate-targeted fibroblast growth factor 8b transgenic mice. Neoplasia 2011; 12:915-27. [PMID: 21076617 DOI: 10.1593/neo.10776] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Revised: 07/16/2010] [Accepted: 07/19/2010] [Indexed: 11/18/2022]
Abstract
Expression of fibroblast growth factor 8 (FGF-8) is commonly increased in prostate cancer. Experimental studies have provided evidence that it plays a role in prostate tumorigenesis and tumor progression. To study how increased FGF-8 affects the prostate, we generated and analyzed transgenic (TG) mice expressing FGF-8b under the probasin promoter that targets expression to prostate epithelium. Prostates of the TG mice showed an increased size and changes in stromal and epithelial morphology progressing from atypia and prostatic intraepithelial neoplasia (mouse PIN, mPIN) lesions to tumors with highly variable phenotype bearing features of adenocarcinoma, carcinosarcoma, and sarcoma. The development of mPIN lesions was preceded by formation of activated stroma containing increased proportion of fibroblastic cells, rich vasculature, and inflammation. The association between advancing stromal and epithelial alterations was statistically significant. Microarray analysis and validation with quantitative polymerase chain reaction revealed that expression of osteopontin and connective tissue growth factor was markedly upregulated in TG mouse prostates compared with wild type prostates. Androgen receptor staining was decreased in transformed epithelium and in hypercellular stroma but strongly increased in the sarcoma-like lesions. In conclusion, our data demonstrate that disruption of FGF signaling pathways by increased epithelial production of FGF-8b leads to strongly activated and atypical stroma, which precedes development of mPIN lesions and prostate cancer with mixed features of adenocarcinoma and sarcoma in the prostates of TG mice. The results suggest that increased FGF-8 in human prostate may also contribute to prostate tumorigenesis by stromal activation.
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Simanainen U, Lampinen A, Henneicke H, Brennan TC, Heinevetter U, Harwood DT, McNamara K, Herrmann M, Seibel MJ, Handelsman DJ, Zhou H. Long-term corticosterone treatment induced lobe-specific pathology in mouse prostate. Prostate 2011; 71:289-97. [PMID: 20717994 DOI: 10.1002/pros.21242] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2010] [Accepted: 07/12/2010] [Indexed: 11/11/2022]
Abstract
BACKGROUND Glucocorticoids influence prostate development and pathology, yet the underlying mechanisms including possible direct glucocorticoid effect on the prostate are not well characterized. METHODS We evaluated the expression of the glucocorticoid receptor (GR) together with the effects of supraphysiological glucocorticoid (corticosterone) on mouse prostate morphology and epithelial proliferation. Mature male mice were treated by weekly subdermal implantation of depot pellets containing either 1.5 mg corticosterone or placebo providing steady-state release for 4 weeks. RESULTS Corticosterone treatment significantly increased dorsolateral and anterior prostate weights as well as prostate epithelial cell proliferation while epithelial apoptosis remained low upon corticosterone treatment. Histological analysis of the anterior lobe demonstrated abnormal, highly disorganized luminal epithelium with frequent formation of bridge-like structures lined by continuous layer of basal cells not observed following placebo treatment. Molecular analysis revealed corticosterone-induced increase in expression of stromal growth factor Fgf10 which, together with prominent stromal GR expression, suggest that glucocorticoid modify stromal-to-epithelial signaling in the mouse prostate. The mitogenic effects were prostate specific and not mediated by systemic effects on testosterone production suggesting that corticosterone effects were primarily mediated via prostate GR expression. CONCLUSION These data demonstrate that murine prostate is significantly and directly influenced by corticosterone treatment via aberrant stromal-to-epithelial growth factor signaling.
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Affiliation(s)
- Ulla Simanainen
- Department of Andrology, ANZAC Research Institute, University of Sydney, Sydney, NSW, Australia.
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Tuomela J, Grönroos TJ, Valta MP, Sandholm J, Schrey A, Seppänen J, Marjamäki P, Forsback S, Kinnunen I, Solin O, Minn H, Härkönen PL. Fast growth associated with aberrant vasculature and hypoxia in fibroblast growth factor 8b (FGF8b) over-expressing PC-3 prostate tumour xenografts. BMC Cancer 2010; 10:596. [PMID: 21034500 PMCID: PMC2984431 DOI: 10.1186/1471-2407-10-596] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2010] [Accepted: 10/30/2010] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Prostate tumours are commonly poorly oxygenated which is associated with tumour progression and development of resistance to chemotherapeutic drugs and radiotherapy. Fibroblast growth factor 8b (FGF8b) is a mitogenic and angiogenic factor, which is expressed at an increased level in human prostate tumours and is associated with a poor prognosis. We studied the effect of FGF8b on tumour oxygenation and growth parameters in xenografts in comparison with vascular endothelial growth factor (VEGF)-expressing xenografts, representing another fast growing and angiogenic tumour model. METHODS Subcutaneous tumours of PC-3 cells transfected with FGF8b, VEGF or empty (mock) vectors were produced and studied for vascularity, cell proliferation, glucose metabolism and oxygenation. Tumours were evaluated by immunohistochemistry (IHC), flow cytometry, use of radiolabelled markers of energy metabolism ([18F]FDG) and hypoxia ([18F]EF5), and intratumoral polarographic measurements of pO2. RESULTS Both FGF8b and VEGF tumours grew rapidly in nude mice and showed highly vascularised morphology. Perfusion studies, pO2 measurements, [18F]EF5 and [18F]FDG uptake as well as IHC staining for glucose transport protein (GLUT1) and hypoxia inducible factor (HIF) 1 showed that VEGF xenografts were well-perfused and oxygenised, as expected, whereas FGF8b tumours were as hypoxic as mock tumours. These results suggest that FGF8b-induced tumour capillaries are defective. Nevertheless, the growth rate of hypoxic FGF8b tumours was highly increased, as that of well-oxygenised VEGF tumours, when compared with hypoxic mock tumour controls. CONCLUSION FGF8b is able to induce fast growth in strongly hypoxic tumour microenvironment whereas VEGF-stimulated growth advantage is associated with improved perfusion and oxygenation of prostate tumour xenografts.
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Affiliation(s)
- Johanna Tuomela
- Institute of Biomedicine, Department of Cell Biology and Anatomy, University of Turku, Turku, Finland.
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Tarkkonen K, Ruohola J, Härkönen P. Fibroblast growth factor 8 induced downregulation of thrombospondin 1 is mediated by the MEK/ERK and PI3K pathways in breast cancer cells. Growth Factors 2010; 28:256-67. [PMID: 20370578 DOI: 10.3109/08977191003745480] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Expression of fibroblast growth factor 8 (FGF-8) is increased in several forms of hormonal cancer. It was previously shown to regulate expression of thrombospondin 1 (TSP-1), an inhibitor of angiogenesis, in S115 breast cancer cells. Here, we studied the FGF-8-activated signalling pathways mediating TSP-1 repression in S115 cells and in non-tumorigenic MCF10A cells. Inhibition of FGF receptors or of MEK1/2 and PI3K with specific inhibitors (PD173074, U0126 or LY294002, respectively) restored TSP-1 mRNA expression in the presence of FGF-8 in S115 cells. Furthermore, U0126 and LY294002 increased TSP-1 mRNA expression in S115 cells over-expressing FGF-8. In MCF10A cells, FGF-8 treatment also decreased TSP-1 expression and the effect was dependent on active MEK1/2. In conclusion, FGF-8 suppresses TSP-1 expression through two independent pathways, MEK1/2 and PI3K. Repression of TSP-1 may be an important mechanism involved in induction of an angiogenic phenotype and growth of FGF-8-expressing breast cancer.
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Affiliation(s)
- Kati Tarkkonen
- Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, 20520, Turku, Finland.
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Current Opinion in Endocrinology, Diabetes & Obesity. Current world literature. Curr Opin Endocrinol Diabetes Obes 2010; 17:293-312. [PMID: 20418721 DOI: 10.1097/med.0b013e328339f31e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nilsson EM, Brokken LJ, Härkönen PL. Fibroblast growth factor 8 increases breast cancer cell growth by promoting cell cycle progression and by protecting against cell death. Exp Cell Res 2010; 316:800-12. [DOI: 10.1016/j.yexcr.2009.11.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Revised: 11/12/2009] [Accepted: 11/27/2009] [Indexed: 02/05/2023]
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CC chemokine ligand 2 (CCL2) promotes prostate cancer tumorigenesis and metastasis. Cytokine Growth Factor Rev 2009; 21:41-8. [PMID: 20005149 DOI: 10.1016/j.cytogfr.2009.11.009] [Citation(s) in RCA: 210] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
CCL2 is a chemokine known to recruit monocytes and macrophages to sites of inflammation. A growing body of research suggests CCL2 is progressively overexpressed in tumor beds and may play a role in the clinical progression of solid tumors. Cancer cells derived from several solid tumor types demonstrate functional receptors for CCL2, suggesting this chemokine may achieve tumorigenicity through direct effects on malignant cells; however, a variety of normal host cells that co-exist with cancer in the tumor microenvironment also respond to CCL2. These cells include macrophages, osteoclasts, endothelial cells, T-lymphocytes, and myeloid-derived immune suppressor cells (MDSCs). CCL2 mediated interactions between normal and malignant cells in the tumor microenvironment and plays a multi-faceted role in tumor progression.
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Tuomela J, Valta M, Seppänen J, Tarkkonen K, Väänänen HK, Härkönen P. Overexpression of vascular endothelial growth factor C increases growth and alters the metastatic pattern of orthotopic PC-3 prostate tumors. BMC Cancer 2009; 9:362. [PMID: 19821979 PMCID: PMC2767356 DOI: 10.1186/1471-2407-9-362] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2009] [Accepted: 10/12/2009] [Indexed: 12/29/2022] Open
Abstract
Background Prostate cancer metastasizes to regional lymph nodes and distant sites but the roles of lymphatic and hematogenous pathways in metastasis are not fully understood. Methods We studied the roles of VEGF-C and VEGFR3 in prostate cancer metastasis by blocking VEGFR3 using intravenous adenovirus-delivered VEGFR3-Ig fusion protein (VEGFR3-Ig) and by ectopic expression of VEGF-C in PC-3 prostate tumors in nude mice. Results VEGFR3-Ig decreased the density of lymphatic capillaries in orthotopic PC-3 tumors (p < 0.05) and inhibited metastasis to iliac and sacral lymph nodes. In addition, tumor volumes were smaller in the VEGFR3-Ig-treated group compared with the control group (p < 0.05). Transfection of PC-3 cells with the VEGF-C gene led to a high level of 29/31 kD VEGF-C expression in PC-3 cells. The size of orthotopic and subcutaneous PC-3/VEGF-C tumors was significantly greater than that of PC-3/mock tumors (both p < 0.001). Interestingly, while most orthotopic PC-3 and PC-3/mock tumors grown for 4 weeks metastasized to prostate-draining lymph nodes, orthotopic PC-3/VEGF-C tumors primarily metastasized to the lungs. PC-3/VEGF-C tumors showed highly angiogenic morphology with an increased density of blood capillaries compared with PC-3/mock tumors (p < 0.001). Conclusion The data suggest that even though VEGF-C/VEGFR3 pathway is primarily required for lymphangiogenesis and lymphatic metastasis, an increased level of VEGF-C can also stimulate angiogenesis, which is associated with growth of orthotopic prostate tumors and a switch from a primary pattern of lymph node metastasis to an increased proportion of metastases at distant sites.
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Affiliation(s)
- Johanna Tuomela
- Institute of Biomedicine, Department of Cell Biology and Anatomy, University of Turku, Finland.
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