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Abstract
PURPOSE OF THE REVIEW Angiogenesis plays a key role in bladder cancer (BC) pathogenesis. In the last two decades, an increasing number of publications depicting a multitude of novel angiogenic molecules and pathways have emerged. The growing complexity necessitates an evaluation of the breadth of current knowledge to highlight key findings and guide future research. RECENT FINDINGS Angiogenesis is a dynamic biologic process that is inherently difficult to assess. Clinical assessment of angiogenesis in BCs is advancing with the integration of image analysis systems and dynamic contrast-enhanced and magnetic resonance imaging (DCE-MRI). Tumour-associated macrophages (TAMs) significantly influence the angiogenic process, and further research is needed to assess their potential as therapeutic targets. A rapidly growing list of non-coding RNAs affect angiogenesis in BCs, partly through modulation of vascular endothelial growth factor (VEGF) activity. Vascular mimicry (VM) has been repeatedly associated with increased tumour aggressiveness in BCs. Standardised assays are needed for appropriate identification and quantification of VM channels. This article demonstrates the dynamic and complex nature of the angiogenic process and asserts the need for further studies to deepen our understanding.
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Affiliation(s)
- Ghada Elayat
- Department of Natural Science, Middlesex University, London, UK
- Department of Histopathology, Tanta University, Tanta, Egypt
| | - Ivan Punev
- Department of Natural Science, Middlesex University, London, UK
| | - Abdel Selim
- Histopathology Department, King’s Health Partners, King’s College Hospital, London, UK
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Guo C, Trivedi R, Tripathi AK, Nandy RR, Wagner DC, Narra K, Chaudhary P. Higher Expression of Annexin A2 in Metastatic Bladder Urothelial Carcinoma Promotes Migration and Invasion. Cancers (Basel) 2022; 14:cancers14225664. [PMID: 36428758 PMCID: PMC9688257 DOI: 10.3390/cancers14225664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/11/2022] [Accepted: 11/16/2022] [Indexed: 11/19/2022] Open
Abstract
In this study, we aim to evaluate the significance of AnxA2 in BLCA and establish its metastatic role in bladder cancer cells. Analysis of TCGA data showed that AnxA2 mRNA expression was significantly higher in BLCA tumors than in normal bladder tissues. High mRNA expression of AnxA2 in BLCA was significantly associated with high pathological grades and stages, non-papillary tumor histology, and poor overall survival (OS), progression-free survival (PFS), and diseases specific survival (DSS). Similarly, we found that AnxA2 expression was higher in bladder cancer cells derived from high-grade metastatic carcinoma than in cells derived from low-grade urothelial carcinoma. AnxA2 expression significantly mobilized to the surface of highly metastatic bladder cancer cells compared to cells derived from low-grade tumors and associated with high plasmin generation and AnxA2 secretion. In addition, the downregulation of AnxA2 cells significantly inhibited the proliferation, migration, and invasion in bladder cancer along with the reduction in proangiogenic factors and cytokines such as PDGF-BB, ANGPT1, ANGPT2, Tie-2, bFGF, GRO, IL-6, IL-8, and MMP-9. These findings suggest that AnxA2 could be a promising biomarker and therapeutic target for high-grade BLCA.
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Affiliation(s)
- Christina Guo
- Texas College of Osteopathic Medicine, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Rucha Trivedi
- Department of Microbiology, Immunology and Genetics, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Amit K. Tripathi
- Department of Microbiology, Immunology and Genetics, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Rajesh R. Nandy
- Department of Biostatistics and Epidemiology, School of Public Health, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Diana C. Wagner
- Department of Anatomic Pathology, JPS Health Network, Fort Worth, TX 76104, USA
| | - Kalyani Narra
- JPS Oncology and Infusion Center, JPS Health Network, Fort Worth, TX 76104, USA
| | - Pankaj Chaudhary
- Department of Microbiology, Immunology and Genetics, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
- Correspondence: ; Tel.: +1-817-735-5178
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Herrera J, Bockhorst K, Bhattarai D, Uray K. Gastrointestinal vascular permeability changes following spinal cord injury. Neurogastroenterol Motil 2020; 32:e13834. [PMID: 32163655 DOI: 10.1111/nmo.13834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 02/06/2020] [Accepted: 02/18/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Gastrointestinal (GI) dysfunction is observed clinically after spinal cord injury (SCI) and contributes to the diminished long-term quality of life. Our study examined the acute and chronic GI vascular changes that occur following SCI. We demonstrated that the GI vascular tract in SCI mice becomes compromised during the acute phase of injury and persists into the chronic phase of injury. METHODS Gastrointestinal vasculature permeability was measured using dynamic contrast-enhanced magnetic resonance imaging (DCE MRI) at 48 hours, and 2 and 4 weeks following contusion spinal cord injury. Angiopoietin-1, a vascular stabilizing protein, was administered intravenously following injury. Intestinal contractile activity assessments were performed following the last imaging session. KEY RESULTS Our results indicated that a single administration of Ang-1 reduced vascular permeability at 48 hours but the effect was only transient. However, when the treatment paradigm was changed from a single administration to multiple administrations of Ang-1 following contusion injury, our DCE MRI data indicated a significant decrease in GI vascular permeability 4 weeks after injury compared with vehicle control treated animals. This improved GI vascular permeability was associated with improved sustained intestinal contractile activity. We also demonstrated that Ang-1 reduced the expression of sICAM-1 in the ileum compared with the saline-treated group. CONCLUSIONS AND INFERENCES We show that the GI vasculature is compromised in the acute and chronic phase of injury following spinal contusion. Our results also indicate that multiple administrations of Ang-1 can attenuate GI vascular permeability, possibly reduce inflammation, and improve sustained agonist-induced contraction compared with saline treatment.
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Affiliation(s)
- Juan Herrera
- Diagnostic and Interventional Imaging, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Kurt Bockhorst
- Diagnostic and Interventional Imaging, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Deepa Bhattarai
- Pediatric Surgery University of Texas Medical School at Houston, Houston, Texas, USA
| | - Karen Uray
- Pediatric Surgery University of Texas Medical School at Houston, Houston, Texas, USA.,Medicinal Chemistry, University of Debrecen, Debrecen, Hungary
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Roudnicky F, Poyet C, Buser L, Saba K, Wild P, Otto VI, Detmar M. Characterization of Tumor Blood Vasculature Expression of Human Invasive Bladder Cancer by Laser Capture Microdissection and Transcriptional Profiling. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:1960-1970. [PMID: 32585158 DOI: 10.1016/j.ajpath.2020.05.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/16/2020] [Accepted: 05/27/2020] [Indexed: 01/23/2023]
Abstract
Tumor-associated blood vessels differ from normal vessels and play key roles in tumor progression. We aimed to identify biomolecules that are expressed differentially in human bladder cancer-associated blood vessels to find novel biomarkers and mechanisms involved in tumor-associated angiogenesis. The transcriptome of tumor blood vasculature from human invasive bladder carcinoma (I-BLCA) and normal bladder tissue vasculature was compared using differential expression and unsupervised hierarchical clustering analyses. Pathway analysis identified up-regulation of genes involved in the proliferation, cell cycle, angiogenesis, inflammation, and transforming growth factor-β signaling in tumor blood vasculature. A common consensus gene expression signature was identified between bladder cancer tumor blood vasculature with tumor blood vasculature of other solid cancers, which correlated with the overall survival of patients with several of the solid cancers investigated in The Cancer Genome Atlas data set. In bladder tumor blood vasculature, the secreted factor angiopoietin-like protein 2 (ANGPTL2), was confirmed to be up-regulated by quantitative RT-PCR and immunohistochemical staining. The up-regulation of ANGPTL2 in plasma was also observed in non-invasive bladder carcinoma and I-BLCA. We semiquantitatively analyzed expression of ANGPTL2 in tissue microarrays from I-BLCA and surprisingly found an opposite correlation between staining intensity and progression-free survival. Our results indicate that ANGPTL2 might serve as a potential biomarker to predict progression-free survival in I-BLCA.
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Affiliation(s)
- Filip Roudnicky
- Institute of Pharmaceutical Sciences, ETH Zurich, Zürich, Switzerland
| | - Cedric Poyet
- Department of Urology, University Hospital Zurich, Zürich, Switzerland
| | - Lorenz Buser
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zürich, Switzerland
| | - Karim Saba
- Department of Urology, University Hospital Zurich, Zürich, Switzerland
| | - Peter Wild
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zürich, Switzerland
| | - Vivianne I Otto
- Institute of Pharmaceutical Sciences, ETH Zurich, Zürich, Switzerland
| | - Michael Detmar
- Institute of Pharmaceutical Sciences, ETH Zurich, Zürich, Switzerland.
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Mencucci MV, Lapyckyj L, Rosso M, Besso MJ, Belgorosky D, Isola M, Vanzulli S, Lodillinsky C, Eiján AM, Tejerizo JC, Gonzalez MI, Zubieta ME, Vazquez-Levin MH. Ephrin-B1 Is a Novel Biomarker of Bladder Cancer Aggressiveness. Studies in Murine Models and in Human Samples. Front Oncol 2020; 10:283. [PMID: 32292715 PMCID: PMC7119101 DOI: 10.3389/fonc.2020.00283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 02/18/2020] [Indexed: 01/11/2023] Open
Abstract
Bladder cancer (BC) is the ninth most common cancer worldwide, but molecular changes are still under study. During tumor progression, Epithelial cadherin (E-cadherin) expression is altered and β-catenin may be translocated to the nucleus, where it acts as co-transcription factor of tumor invasion associated genes. This investigation further characterizes E-cadherin and β-catenin associated changes in BC, by combining bioinformatics, an experimental murine cell model (MB49/MB49-I) and human BC samples. In in silico studies, a DisGeNET (gene-disease associations database) analysis identified CDH1 (E-cadherin gene) as one with highest score among 130 BC related-genes. COSMIC mutation analysis revealed CDH1 low mutations rates. Compared to MB49 control BC cells, MB49-I invasive cells showed decreased E-cadherin expression, E- to P-cadherin switch, higher β-catenin nuclear signal and lower cytoplasmic p-Ser33-β-catenin signal, higher Ephrin-B1 ligand and EphB2 receptor expression, higher Phospho-Stat3 and Urokinase-type Plasminogen Activator (UPA), and UPA receptor expression. MB49-I cells transfected with Ephrin-B1 siRNA showed lower migratory and invasive capacity than control cells (scramble siRNA). By immunohistochemistry, orthotopic MB49-I tumors had lower E-cadherin, increased nuclear β-catenin, lower pSer33-β-catenin cytoplasmic signal, and higher Ephrin-B1 expression than MB49 tumors. Similar changes were found in human BC tumors, and 83% of infiltrating tumors depicted a high Ephrin-B1 stain. An association between higher Ephrin-B1 expression and higher stage and tumor grade was found. No association was found between abnormal E-cadherin signal, Ephrin-B1 expression or clinical-pathological parameter. This study thoroughly analyzed E-cadherin and associated changes in BC, and reports Ephrin-B1 as a new marker of tumor aggressiveness.
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Affiliation(s)
- María Victoria Mencucci
- Laboratorio de Estudios de la Interacción Celular en Reproducción y Cáncer, Instituto de Biología y Medicina Experimental (IBYME; CONICET-FIBYME), Buenos Aires, Argentina
| | - Lara Lapyckyj
- Laboratorio de Estudios de la Interacción Celular en Reproducción y Cáncer, Instituto de Biología y Medicina Experimental (IBYME; CONICET-FIBYME), Buenos Aires, Argentina
| | - Marina Rosso
- Laboratorio de Estudios de la Interacción Celular en Reproducción y Cáncer, Instituto de Biología y Medicina Experimental (IBYME; CONICET-FIBYME), Buenos Aires, Argentina
| | - María José Besso
- Laboratorio de Estudios de la Interacción Celular en Reproducción y Cáncer, Instituto de Biología y Medicina Experimental (IBYME; CONICET-FIBYME), Buenos Aires, Argentina
| | - Denise Belgorosky
- Research Area, Instituto de Oncología Angel H. Roffo, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Mariana Isola
- Departamento de Anatomía Patológica, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | | | - Catalina Lodillinsky
- Research Area, Instituto de Oncología Angel H. Roffo, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Ana María Eiján
- Research Area, Instituto de Oncología Angel H. Roffo, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Juan Carlos Tejerizo
- Departamento de Urología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | | | - María Ercilia Zubieta
- Departamento de Urología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Mónica Hebe Vazquez-Levin
- Laboratorio de Estudios de la Interacción Celular en Reproducción y Cáncer, Instituto de Biología y Medicina Experimental (IBYME; CONICET-FIBYME), Buenos Aires, Argentina
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Zhou S, Xu L, Cao M, Wang Z, Xiao D, Xu S, Deng J, Hu X, He C, Tao T, Wang W, Guan A, Yang X. Anticancer properties of novel pyrazole‐containing biguanide derivatives with activating the adenosine monophosphate‐activated protein kinase signaling pathway. Arch Pharm (Weinheim) 2019; 352:e1900075. [DOI: 10.1002/ardp.201900075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 05/16/2019] [Accepted: 05/22/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Sichun Zhou
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of MedicineHunan Normal University Changsha Hunan China
| | - Leichuan Xu
- State Key Laboratory of the Discovery and Development of Novel PesticideShenyang Sinochem Agrochemicals R&D Company Ltd. Shenyang China
| | - Mengru Cao
- TCM and Ethnomedicine Innovation & Development International Laboratory, Innovative Materia Medica Research Institute, School of PharmacyHunan University of Chinese Medicine Changsha China
| | - Zhiren Wang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of MedicineHunan Normal University Changsha Hunan China
| | - Di Xiao
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of MedicineHunan Normal University Changsha Hunan China
| | - Simeng Xu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of MedicineHunan Normal University Changsha Hunan China
| | - Jun Deng
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of MedicineHunan Normal University Changsha Hunan China
| | - Xin Hu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of MedicineHunan Normal University Changsha Hunan China
| | - Caimei He
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of MedicineHunan Normal University Changsha Hunan China
| | - Ting Tao
- Department of PharmacyHunan Yueyang Maternal & Child Health‐Care Hospital Yueyang China
| | - Wei Wang
- TCM and Ethnomedicine Innovation & Development International Laboratory, Innovative Materia Medica Research Institute, School of PharmacyHunan University of Chinese Medicine Changsha China
| | - Aiying Guan
- State Key Laboratory of the Discovery and Development of Novel PesticideShenyang Sinochem Agrochemicals R&D Company Ltd. Shenyang China
| | - Xiaoping Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of MedicineHunan Normal University Changsha Hunan China
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Li L, ZHeng-Qing Y, Juan-Yu H, Jian-Yong X, Fan L, Guang-Chun Z, Lei Z, Hui-Ming G, Si-Jing Z, Meng J. Association between interleukin-19 and angiopoietin-2 with vascular complications in type 2 diabetes. J Diabetes Investig 2016; 7:895-900. [PMID: 27182008 PMCID: PMC5089953 DOI: 10.1111/jdi.12519] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 02/15/2016] [Accepted: 03/15/2016] [Indexed: 12/27/2022] Open
Abstract
Aims/Introduction The aim of the present study was to investigate the role of interleukin‐19 (IL‐19) in angiogenesis of type 2 diabetes mellitus with complications, and to assess the relationship of serum IL‐19 and angiopoietin‐2 (Ang‐2) in type 2 diabetes mellitus. Materials and Methods The group studied comprised of 240 patients with type 2 diabetes mellitus (132 men and 108 women), and included macrovascular complications, microvascular complications and type 2 diabetes mellitus without vascular complications. The control group consisted of 50 healthy blood donors. All participants were evaluated for: IL‐19, Ang‐2, fasting plasma glucose, fasting insulin and glycosylated hemoglobin. Results The serum IL‐19 levels of type 2 diabetes mellitus patients with angiopathy were found to be significantly higher compared with patients without angiopathy. IL‐19 levels were significantly positively correlated with Ang‐2, homeostasis model assessment for insulin resistance and glycosylated hemoglobin (r = 0.769, 0.523 and 0.491, respectively, P < 0.01). In multivariable logistic regression analysis, IL‐19 levels (P = 0.01) were found to be independently associated with patients with type 2 diabetes mellitus complications. Conclusions These data are the first to implicate the association between the IL‐19 and type 2 diabetes mellitus with vascular complications. IL‐19 is significantly positively correlated with Ang‐2. The potential role of IL‐19 and Ang‐2 in the pathogenesis of vascular complications in type 2 diabetes could warrant further study.
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Affiliation(s)
- Li Li
- Department of Clinical Laboratory, Binhai County Hospital, Binhai, Jiangsu Province, China.
| | - Yu ZHeng-Qing
- Department of Clinical Laboratory, Binhai County Hospital, Binhai, Jiangsu Province, China
| | - Hu Juan-Yu
- Department of Clinical Laboratory, Binhai County Second Hospital, Binhai, Jiangsu Province, China
| | - Xu Jian-Yong
- Department of Clinical Laboratory, Binhai County Hospital, Binhai, Jiangsu Province, China
| | - Liu Fan
- Department of Clinical Laboratory, Binhai County Hospital, Binhai, Jiangsu Province, China
| | - Zhao Guang-Chun
- Department of Clinical Laboratory, Binhai County Hospital, Binhai, Jiangsu Province, China
| | - Zhang Lei
- Department of Clinical Laboratory, Binhai County Hospital, Binhai, Jiangsu Province, China
| | - Gu Hui-Ming
- Department of Clinical Laboratory, Binhai County Hospital, Binhai, Jiangsu Province, China
| | - Zhang Si-Jing
- Department of Clinical Laboratory, Binhai County Hospital, Binhai, Jiangsu Province, China
| | - Jin Meng
- Department of Clinical Laboratory, Binhai County Hospital, Binhai, Jiangsu Province, China
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Yang SM, Huang CY, Shiue HS, Huang SP, Pu YS, Chen WJ, Lin YC, Hsueh YM. Joint Effect of Urinary Total Arsenic Level and VEGF-A Genetic Polymorphisms on the Recurrence of Renal Cell Carcinoma. PLoS One 2015; 10:e0145410. [PMID: 26701102 PMCID: PMC4689502 DOI: 10.1371/journal.pone.0145410] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 12/03/2015] [Indexed: 12/21/2022] Open
Abstract
The results of our previous study suggested that high urinary total arsenic levels were associated with an increased risk of renal cell carcinoma (RCC). Germline genetic polymorphisms might also affect cancer risk and clinical outcomes. Vascular endothelial growth factor (VEGF) plays an important role in vasculogenesis and angiogenesis, but the combined effect of these factors on RCC remains unclear. In this study, we explored the association between the VEGF-A -2578C>A, -1498T>C, -1154G>A, -634G>C, and +936C>T gene polymorphisms and RCC. We also evaluated the combined effects of the VEGF-A haplotypes and urinary total arsenic levels on the prognosis of RCC. This case-control study was conducted with 191 RCC patients who were diagnosed with renal tumors on the basis of image-guided biopsy or surgical resections. An additional 376 age- and gender-matched controls were recruited. Concentrations of urinary arsenic species were determined by a high performance liquid chromatography-linked hydride generator and atomic absorption spectrometry. Genotyping was investigated using fluorescent-based TaqMan allelic discrimination. We observed no significant associations between VEGF-A haplotypes and RCC risk. However, the VEGF-A ACGG haplotype from VEGF-A -2578, -1498, -1154, and -634 was significantly associated with an increased recurrence of RCC (OR = 3.34, 95% CI = 1.03–10.91). Urinary total arsenic level was significantly associated with the risk of RCC in a dose-response manner, but it was not related to the recurrence of RCC. The combination of high urinary total arsenic level and VEGF-A risk haplotypes affected the OR of RCC recurrence in a dose-response manner. This is the first study to show that joint effect of high urinary total arsenic and VEGF-A risk haplotypes may influence the risk of RCC recurrence in humans who live in an area without obvious arsenic exposure.
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Affiliation(s)
- Shu-Mei Yang
- School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Chao-Yuan Huang
- Department of Urology, National Taiwan University Hospital, College of Medicine National Taiwan University, Taipei, Taiwan
| | - Horng-Sheng Shiue
- Department of Chinese Medicine, Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Shu-Pin Huang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yeong-Shiau Pu
- Department of Urology, National Taiwan University Hospital, College of Medicine National Taiwan University, Taipei, Taiwan
| | - Wei-Jen Chen
- School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Ying-Chin Lin
- Department of Family Medicine, Shung Ho Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Health Examination, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Division of Family Medicine, School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Mei Hsueh
- School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
- Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- * E-mail: (YMH)
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Li L, Qian L, Yu ZQ. Serum angiopoietin-2 is associated with angiopathy in type 2 diabetes mellitus. J Diabetes Complications 2015; 29:568-71. [PMID: 25754501 DOI: 10.1016/j.jdiacomp.2015.02.006] [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: 11/06/2014] [Revised: 02/09/2015] [Accepted: 02/13/2015] [Indexed: 10/24/2022]
Abstract
PURPOSE The aim of the present study was to investigate the association of serum levels of angiopoietin-1 (Ang-1) and angiopoietin-2 (Ang-2) with angiopathy in type 2 diabetes mellitus (T2DM). METHODS The group studied comprised of 120 patients with T2DM (68 males and 52 females), included macroangiopathy complications, microvascular disease and diabetic without vascular disease. The control group consisted of 50 healthy blood donors. Ang-1, Ang-2, fasting plasma glucose (FBG), fasting insulin (FINS) and HbA1c were assessed. RESULTS The serum Ang-2 levels of T2DM patients with angiopathy were found to be significantly higher compared to patients without angiopathy. Ang-2 levels were significantly positively correlated with homeostasis model assessment for insulin resistance (HOMA-IR) and glycosylated hemoglobin A1c (HbA1c) (r=0.577 and 0.504, respectively, P<0.01). In contrast, there was no significant correlation between Ang-1 levels and HOMA-IR (P>0.05). In multivariable logistic regression analysis, Ang-2 levels (P=0.02) were found to be independently associated with patients with T2DM angiopathy. CONCLUSIONS An association between the Ang-2 and T2DM with vascular complications was found.
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Affiliation(s)
- Li Li
- Department of Clinical Laboratory, Binhai Hospital, Jiangsu Province, P.R. China
| | - Lei Qian
- Department of Clinical Laboratory, Binhai Hospital, Jiangsu Province, P.R. China.
| | - Zheng-Qing Yu
- Department of Clinical Laboratory, Binhai Hospital, Jiangsu Province, P.R. China
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Keskin D, Kim J, Cooke VG, Wu CC, Sugimoto H, Gu C, De Palma M, Kalluri R, LeBleu VS. Targeting vascular pericytes in hypoxic tumors increases lung metastasis via angiopoietin-2. Cell Rep 2015; 10:1066-81. [PMID: 25704811 DOI: 10.1016/j.celrep.2015.01.035] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 12/02/2014] [Accepted: 01/13/2015] [Indexed: 01/12/2023] Open
Abstract
Strategies to target angiogenesis include inhibition of the vessel-stabilizing properties of vascular pericytes. Pericyte depletion in early-stage non-hypoxic tumors suppressed nascent angiogenesis, tumor growth, and lung metastasis. In contrast, pericyte depletion in advanced-stage hypoxic tumors with pre-established vasculature resulted in enhanced intra-tumoral hypoxia, decreased tumor growth, and increased lung metastasis. Furthermore, depletion of pericytes in post-natal retinal blood vessels resulted in abnormal and leaky vasculature. Tumor transcriptome profiling and biological validation revealed that angiopoietin signaling is a key regulatory pathway associated with pericyte targeting. Indeed, pericyte targeting in established mouse tumors increased angiopoietin-2 (ANG2/Angpt2) expression. Depletion of pericytes, coupled with targeting of ANG2 signaling, restored vascular stability in multiple model systems and decreased tumor growth and metastasis. Importantly, ANGPT2 expression correlated with poor outcome in patients with breast cancer. These results emphasize the potential utility of therapeutic regimens that target pericytes and ANG2 signaling in metastatic breast cancer.
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Affiliation(s)
- Doruk Keskin
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA; Division of Matrix Biology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02115, USA
| | - Jiha Kim
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA; Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Vesselina G Cooke
- Division of Matrix Biology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02115, USA
| | - Chia-Chin Wu
- Department of Genomic Medicine, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Hikaru Sugimoto
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA; Division of Matrix Biology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02115, USA
| | - Chenghua Gu
- Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Michele De Palma
- The Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Raghu Kalluri
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA; Division of Matrix Biology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02115, USA.
| | - Valerie S LeBleu
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA; Division of Matrix Biology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02115, USA.
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11
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The route to personalized medicine in bladder cancer: where do we stand? Target Oncol 2015; 10:325-36. [DOI: 10.1007/s11523-015-0357-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 01/12/2015] [Indexed: 12/21/2022]
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Eroglu Z, Stein CA, Pal SK. Targeting angiopoietin-2 signaling in cancer therapy. Expert Opin Investig Drugs 2013; 22:813-25. [DOI: 10.1517/13543784.2013.793306] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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13
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Festino L, Fabozzi A, Manzo A, Gambardella V, Martinelli E, Troiani T, De Vita F, Orditura M, Ciardiello F, Morgillo F. Critical appraisal of the use of regorafenib in the management of colorectal cancer. Cancer Manag Res 2013; 5:49-55. [PMID: 23610528 PMCID: PMC3628528 DOI: 10.2147/cmar.s34281] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The lack of valid clinical management options for patients affected by metastatic colorectal cancer, which has progressed after all approved standard treatments, has lead to research into new active molecules. Regorafenib is an oral small-molecule multi kinase inhibitor, binding to several intracellular kinases, with powerful inhibitory activity against vascular endothelial growth factor receptors (VEGFR-1,VEGFR-2, and VEGFR-3), platelet-derived growth factor receptor, fibroblast growth factor receptor 1, Raf, TIE-2, and the kinases KIT, RET, and BRAF. The antitumor activity of regorafenib has been tested in vitro and in vivo, and inhibition of tumor growth has been observed in several cancer models, particularly colorectal cancer and gastrointestinal stromal tumors. The most frequent adverse events of grade 3 or higher related to regorafenib were hand-foot skin reaction, fatigue, diarrhea, hypertension, and rash or desquamation. Only a few Phase I–II trials, and most recently a Phase III trial in pretreated colorectal cancer, have been carried out to date. Several ongoing trials are testing the efficacy of regorafenib in combination with chemotherapy. At this point in time, regorafenib is the first small-molecule tyrosine kinase inhibitor to gain approval by the US Food and Drug Administration for pretreated metastatic colorectal cancer patients.
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Affiliation(s)
- Lucia Festino
- Division of Medical Oncology, Department of clinical and experimental medicine and surgery "F. Magrassi e A. Lanzara", Second University of Naples, Napoli, Italy
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Huang YJ, Qi WX, He AN, Sun YJ, Shen Z, Yao Y. Prognostic Value of Tissue Vascular Endothelial Growth Factor Expression in Bladder Cancer: a Meta-analysis. Asian Pac J Cancer Prev 2013; 14:645-9. [DOI: 10.7314/apjcp.2013.14.2.645] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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15
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Angiopoietins in angiogenesis. Cancer Lett 2012; 328:18-26. [PMID: 22922303 DOI: 10.1016/j.canlet.2012.08.018] [Citation(s) in RCA: 438] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Revised: 08/14/2012] [Accepted: 08/14/2012] [Indexed: 12/26/2022]
Abstract
Tie-1 and Tie-2 tyrosine kinase receptors are expressed specifically on vascular endothelial cells and on a certain subtype of macrophages implicated in angiogenesis, thus, they have been a major focus of angiogenesis research. Tie-1 and Tie-2 are essential for vascular maturation during developmental, physiological and pathological angiogenesis. Angiopoietin 1-4 (Ang-1-4) have been identified as bona fide ligands of the Tie-2 receptor, while Tie-1 remains an orphan receptor which is able to heterodimerize with Tie-2 and to modulate Tie-2 signal transduction. The most exhaustively studied angiopoietins are Ang-1 and Ang-2. Ang-1 is a critical player in vessel maturation and it mediates migration, adhesion and survival of endothelial cells. Ang-2 disrupts the connections between the endothelium and perivascular cells and promotes cell death and vascular regression. Yet, in conjunction with VEGF, Ang-2 promotes neo-vascularization. Hence, angiopoietins exert crucial roles in the angiogenic switch during tumor progression, and increased expression of Ang-2 relative to Ang-1 in tumors correlates with poor prognosis. Its central role in the regulation of physiological and pathological angiogenesis makes the angiopoietin/Tie signaling pathway a therapeutically attractive target for the treatment of vascular disease and cancer.
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Yuge K, Miyajima A, Tanaka N, Shirotake S, Kosaka T, Kikuchi E, Oya M. Prognostic Value of Renin–Angiotensin System Blockade in Non-muscle-invasive Bladder Cancer. Ann Surg Oncol 2012; 19:3987-93. [DOI: 10.1245/s10434-012-2568-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2012] [Indexed: 01/22/2023]
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Szarvas T, Jäger T, Laszlo V, Kramer G, Klingler HC, vom Dorp F, Romics I, Ergün S, Rübben H. Circulating angiostatin, bFGF, and Tie2/TEK levels and their prognostic impact in bladder cancer. Urology 2012; 80:737.e13-8. [PMID: 22607948 DOI: 10.1016/j.urology.2012.03.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 03/16/2012] [Accepted: 03/20/2012] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To assess the role and prognostic significance of angiostatin, basic fibroblast growth factor (bFGF), and tyrosine endothelial kinase (TEK/Tie2) in transitional cell bladder carcinoma. MATERIALS AND METHODS Angiostatin, bFGF, and TEK serum concentrations were measured in 82 bladder cancer patients and 20 age-matched healthy controls using enzyme-linked immunosorbent assay. Results were compared with clinicopathologic and follow-up data with the Mann-Whitney U test and Kaplan-Meier, univariate and multivariate Cox regression analyses. RESULTS We found significantly decreased angiostatin and TEK serum levels and mildly elevated bFGF concentrations in samples of bladder cancer patients compared with controls (P < .001, P < .001, and P = .083, respectively). Furthermore, high TEK serum levels were correlated with poor disease-specific and metastasis-free survival in muscle-invasive bladder cancer (P = .013, P = .018), whereas angiostatin and bFGF concentrations did not show any correlation with patients' prognosis. Multivariate analysis revealed high TEK levels (<1.60 ng/mL) as borderline significant independent risk-factor of disease-specific survival (HR 1.83, 95% CI 0.97-3.44, P = .061) and metastasis-free survival (HR 2.65, 95% CI 0.93-7.55, P = .069). CONCLUSION The characteristic differences in the circulating levels of angiostatin, TEK, and bFGF between patients and controls, suggest the presence of a tumor-induced proangiogenic milieu in bladder cancer. Serum TEK levels may contribute to a more reliable preoperative risk stratification in muscle-invasive bladder cancer and therefore may help to optimize therapeutic decisions.
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Affiliation(s)
- Tibor Szarvas
- Department of Urology, University of Duisburg-Essen, Germany.
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18
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Durham-Lee JC, Wu Y, Mokkapati VUL, Paulucci-Holthauzen AA, Nesic O. Induction of angiopoietin-2 after spinal cord injury. Neuroscience 2011; 202:454-64. [PMID: 22020092 DOI: 10.1016/j.neuroscience.2011.09.058] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 09/22/2011] [Accepted: 09/22/2011] [Indexed: 01/27/2023]
Abstract
Angiopoietin-1 (Ang-1) and angiopoietin-2 (Ang-2) have opposing effects on blood vessels, with Ang-2 being mainly induced during the endothelial barrier breakdown. It is known that spinal cord injury (SCI) induces lasting decreases in Ang-1 levels, underlying endothelial barrier disruption, but the expression of Ang-2 in spinal cord injury has not been studied. We characterized Ang-2 after SCI using a clinically relevant rat model of contusion SCI. We found that SCI induces marked and persistent upregulation of Ang-2 (up to 10 weeks after SCI), which does not reflect well-characterized temporal profile of the blood-spinal cord barrier (BSCB) breakdown after SCI, and thus suggests other role(s) for Ang-2 in injured spinal cords. Furthermore, we also found that higher Ang-2 levels were associated with more successful locomotor recovery after SCI, both in SCI rats with markedly better spontaneous motor recovery and in SCI rats receiving a neuroprotective pharmacological intervention (amiloride), suggesting a beneficial role for Ang-2 in injured spinal cords. Immunocytochemical analyses revealed that Ang-2 was not induced in endothelial cells, but in perivascular and non-vascular cells labeled with glial fibrillary acidic protein (GFAP) or with chondroitin sulfate proteoglycan (NG2). Therefore, it is unlikely that induction of Ang-2 contributes to vascular dysfunction underlying functional impairment after SCI, but rather that it contributes to the beneficial pro-angiogenic and/or gliogenic processes underlying recovery processes after SCI.
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Affiliation(s)
- J C Durham-Lee
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555-1072, USA
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19
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Szarvas T, László V, Vom Dorp F, Reis H, Szendröi A, Romics I, Tilki D, Rübben H, Ergün S. Serum endostatin levels correlate with enhanced extracellular matrix degradation and poor patients' prognosis in bladder cancer. Int J Cancer 2011; 130:2922-9. [PMID: 21815140 DOI: 10.1002/ijc.26343] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Accepted: 07/20/2011] [Indexed: 01/13/2023]
Abstract
Endostatin, the proteolytic fragment of collagen XVIII, is an inhibitor of angiogenesis and tumor growth. Interestingly, elevated circulating endostatin levels have been found to correlate with poor patients' prognosis in several cancers. The aim of this study was to assess the prognostic value of endostatin in bladder cancer (BC) and to gain insight into the mechanisms involved in its production. This retrospective study included a total of 337 patients with BC and 103 controls. Collagen XVIII gene expression was analyzed using real-time PCR (n = 82). Endostatin tissue localization was assessed by immunohistochemistry (n = 27). Endostatin serum (n = 87) and urine (n = 153) levels were determined by ELISA. In 12 cases, both serum and paraffinized tissue samples from the same patients were available. We found decreased collagen XVIII tissue expression and increased endostatin urine and serum concentration in samples of patients with BC compared to controls. High serum endostatin levels correlated with the presence of lymph node metastases and MMP-7 concentrations and were independently associated with poor metastasis-free and disease-specific survival. Immunohistochemical analysis revealed a strong endostatin staining in the wall of tumor associated blood vessels in superficial but not in muscle-invasive BCs. Based on these, we concluded that elevated endostatin levels in patients with BC are the consequence of enhanced extracellular matrix degradation and are independent from collagen XVIII expression. Furthermore, serum endostatin levels may provide prognostic information independent from histopathological parameters and may therefore help to optimize therapy decisions. Loss of endostatin expression in tumor associated blood vessels might represent an important step supporting tumor-induced angiogenesis.
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Affiliation(s)
- Tibor Szarvas
- Department of Urology, University of Duisburg-Essen, Germany.
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20
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Andersen S, Donnem T, Al-Shibli K, Al-Saad S, Stenvold H, Busund LT, Bremnes RM. Prognostic impacts of angiopoietins in NSCLC tumor cells and stroma: VEGF-A impact is strongly associated with Ang-2. PLoS One 2011; 6:e19773. [PMID: 21603628 PMCID: PMC3095634 DOI: 10.1371/journal.pone.0019773] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2010] [Accepted: 04/04/2011] [Indexed: 01/06/2023] Open
Abstract
Introduction Angiopoietins and their receptor Tie-2 are, in concert with VEGF-A, key mediators in angiogenesis. This study evaluates the prognostic impact of all known human angiopoietins (Ang-1, Ang-2 and Ang-4) and their receptor Tie-2, as well as their relation to the prognostic expression of VEGF-A. Methods 335 unselected stage I-IIIA NSCLC-patients were included and tissue samples of respective tumor cells and stroma were collected in tissue microarrays (TMAs). Immunohistochemistry (IHC) was used to semiquantitatively evaluate the expression of markers in duplicate tumor and stroma cores. Principal Findings In univariate analyses, low tumor cell expression of Ang-4 (P = 0.046) and low stromal expressions of Ang-4 (P = 0.009) and Ang-2 (P = 0.017) were individually associated with a poor survival. In the multivariate analysis, low stromal Ang-2 (HR 1.88; CI 95% 1.15-3.08) and Ang-4 (HR 1.47, CI 95% 1.02–2.11, P = 0.04) expressions were independently associated with a poor prognosis. In patients with high tumor cell expression of Ang-2, a concomitantly high tumor VEGF-A expression mediated a dramatic survival reduction (P<0.001). In the multivariate analysis of patients with high Ang-2 expression, high tumor VEGF-A expression appeared an independent poor prognosticator (HR 6.43; CI 95% 2.46–16.8; P<0.001). Conclusions In tumor cells, only Ang-4 expression has prognostic impact in NSCLC. In tumor stroma, Ang-4 and Ang-2 are independently associated with survival. The prognostic impact of tumor cell VEGF-A in NSCLC appears strongly associated with a concomitantly high tumor cell expression of Ang-2.
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Affiliation(s)
- Sigve Andersen
- Institute of Clinical Medicine, University of Tromso, Tromso, Norway.
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Wilhelm SM, Dumas J, Adnane L, Lynch M, Carter CA, Schütz G, Thierauch KH, Zopf D. Regorafenib (BAY 73-4506): A new oral multikinase inhibitor of angiogenic, stromal and oncogenic receptor tyrosine kinases with potent preclinical antitumor activity. Int J Cancer 2011; 129:245-55. [PMID: 21170960 DOI: 10.1002/ijc.25864] [Citation(s) in RCA: 938] [Impact Index Per Article: 72.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2010] [Accepted: 11/05/2010] [Indexed: 02/06/2023]
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Saharinen P, Eklund L, Pulkki K, Bono P, Alitalo K. VEGF and angiopoietin signaling in tumor angiogenesis and metastasis. Trends Mol Med 2011; 17:347-62. [PMID: 21481637 DOI: 10.1016/j.molmed.2011.01.015] [Citation(s) in RCA: 333] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Revised: 01/24/2011] [Accepted: 01/28/2011] [Indexed: 12/12/2022]
Abstract
Solid tumors require blood vessels for growth and dissemination, and lymphatic vessels as additional conduits for metastatic spread. The identification of growth factor receptor pathways regulating angiogenesis has led to the clinical approval of the first antiangiogenic molecules targeted against the vascular endothelial growth factor (VEGF)-VEGF receptor (VEGFR)-2 pathway. However, in many cases resistance to anti-VEGF-VEGFR therapy occurs, and thus far the clinical benefit has been limited to only modest improvements in overall survival. Therefore, novel treatment modalities are required. Here, we discuss the members of the VEGF-VEGFR family as well as the angiopoietin growth factors and their Tie receptors as potential novel targets for antiangiogenic and antilymphangiogenic therapies.
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Affiliation(s)
- Pipsa Saharinen
- Molecular/Cancer Biology, Research Programs Unit, Biomedicum Helsinki, P.O.B. 63, (Haartmaninkatu 8), FIN-00014, University of Helsinki, Finland
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Shirotake S, Miyajima A, Kosaka T, Tanaka N, Maeda T, Kikuchi E, Oya M. Angiotensin II type 1 receptor expression and microvessel density in human bladder cancer. Urology 2011; 77:1009.e19-25. [PMID: 21296393 DOI: 10.1016/j.urology.2010.11.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Revised: 10/16/2010] [Accepted: 11/03/2010] [Indexed: 10/18/2022]
Abstract
OBJECTIVES To determine whether angiotensin II type 1 receptor (AT1R) expression and tumor angiogenesis in human bladder cancer (BCa) specimens acquired by transurethral resection (TUR). It has recently been reported that AT1R is expressed in several tumors and is involved in tumor angiogenesis. However, no study has investigated AT1R expression in association with angiogenesis in clinical specimens of bladder cancer. METHODS Surgical specimens were obtained from 108 patients who had undergone TUR for bladder cancer. All specimens were pathologically diagnosed as urothelial carcinoma. AT1R expression and microvessel density (MVD) were determined by immunostaining. The clinical and pathologic characteristics were retrospectively reviewed. RESULTS The MVD was greater in muscle-invasive BCa (MIBC; 29 cases, 34.4 ± 4.1/0.25 mm(2)) than in non-MIBC (NMIBC; 79 cases, 17.4 ± 1.1/0.25 mm(2), P < .0001). AT1R expression was greater in the MIBC (P = .0004) and high-grade (P = .0063) specimens than in the NMIBC and low-grade specimens. In addition, the greater expression of AT1R was significantly associated with MVD (P < .05). In NMIBC, the factors significantly affecting recurrence-free survival on univariate analysis were AT1R (P = .02), MVD (P < .0001), tumor multiplicity (P = .0007), and bacille Calmette-Guérin intravesical instillation after TUR (P = .0026). Multivariate analysis revealed that tumor multiplicity and no BCG intravesical instillation after TUR were independent predictors of 5-year recurrence-free survival, and AT1R and MVD were independent predictors of 1-year recurrence-free survival (P < .01). CONCLUSIONS AT1R expression and MVD were related to early intravesical recurrence in NMIBC. The results suggest that AT1R could become a new molecular target and a prognostic factor for NMIBC.
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Affiliation(s)
- Suguru Shirotake
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
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Verma A, Degrado J, Hittelman AB, Wheeler MA, Kaimakliotis HZ, Weiss RM. Effect of mitomycin C on concentrations of vascular endothelial growth factor and its receptors in bladder cancer cells and in bladders of rats intravesically instilled with mitomycin C. BJU Int 2010; 107:1154-61. [PMID: 20735383 DOI: 10.1111/j.1464-410x.2010.09543.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVES • To examine, using in vitro and in vivo models, the largely unexamined effect of mitomycin C (MMC), an effective intravesical treatment for superficial bladder cancer and carcinoma in situ, on expression of vascular endothelial growth factor (VEGF) and vascular endothelial growth factor receptor-2 (VEGFR-2), which mediates many of the angiogenic properties of VEGF. • To measure, as a positive control, concentrations of the inhibitor of apoptosis, survivin, as an assessment of MMC effectiveness. • To measure MMC-induced changes in proliferation in the presence and absence of VEGF-A small interfering RNA (siRNA). MATERIALS AND METHODS • After treatment with increasing MMC concentrations (5-200 µg/mL), we measured proliferation, as well as VEGF, survivin, VEGF receptor-1 (VEGFR-1) and VEGFR-2 concentrations in RT-4 and T-24 bladder cancer cells. • The effect of pre-treatment of VEGF siRNA and survivin siRNA on MMC-induced decreases in proliferation was measured. • Urinary VEGF concentrations and bladder and kidney concentrations of VEGF-A, VEGFR-1, VEGFR-2 and interleukin-6 (IL-6) mRNA were measured in rats intravesically instilled with saline or MMC (200 µg/mL). RESULTS • Although MMC treatment inhibited cell proliferation and decreased survivin mRNA expression in T-24 and RT4 cells, MMC (12-50 µg/mL) increased VEGF-A mRNA and VEGFR-2 mRNA and protein expression. • Pre-treatment with VEGF-A siRNA or survivin siRNA before MMC treatment reduced proliferation more than MMC alone. • MMC-induced reductions in proliferation were reduced additively by pre-treatment with survivin siRNA, but were potentiated by pre-treatment with VEGF-A siRNA. • VEGFR-2 mRNA and protein concentrations and urinary VEGF concentrations were increased in bladders of rats instilled with MMC. CONCLUSIONS • Intravesically instilled MMC increases urinary VEGF and bladder VEGFR-2 protein and mRNA in rats. • MMC increases VEGF mRNA and VEGFR-2 protein and mRNA concentrations in bladder cancer cells. Therefore, we speculate that MMC could increase the angiogenic potential of both cancer and normal cells. • In cancer cells this effect is largest at lower MMC concentrations. • Combining MMC with agents that reduce EGF concentrations could be of value in treatment of transitional cell carcinoma of the bladder (TCC).
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Affiliation(s)
- Avanti Verma
- Department of Surgery, Section of Urology, Yale University School of Medicine, New Haven, CT, USA
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Szarvas T. [The diagnostic value of microsatellite LOH analysis and the prognostic relevance of angiogenic gene expression in urinary bladder cancer]. Magy Onkol 2009; 53:385-389. [PMID: 20071311 DOI: 10.1556/monkol.53.2009.4.8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Bladder cancer is the second most common malignancy affecting the urinary system. Currently, histology is the only tool that determines therapy and patients' prognosis. As the treatment of non-invasive (Ta/T1) and muscle invasive (T2-T4) bladder tumors are completely different, correct staging is important, although it is often hampered by disturbing factors. Molecular methods offer new prospects for early disease detection, confirmation of unclear histological findings and prognostication. Applying molecular biological methods, the present study is searching for answers to current diagnostic and prognostic problems in bladder carcinoma. We analyzed tumor, blood and/or urine samples of 334 bladder cancer patients and 117 control individuals. Genetic alterations were analyzed in urine samples of patients and controls, both by PCR-based microsatellite loss of heterozigosity (LOH) analysis using 12 fluorescently labeled primers and by DNA hybridization based UroVysion FISH technique using 4 probes, to assess the diagnostic values of these methods. Whole genome microsatellite analysis (with 400 markers) was performed in tumor and blood specimens of bladder cancer patients to find chromosomal regions, the loss of which may be associated with tumor stage. Furthermore, we assessed the prognostic value of Tie2, VEGF, Angiopoietin-1 and -2. We concluded that DNA analysis of voided urine samples by microsatellite analysis and FISH are sensitive and non-invasive methods to detect bladder cancer. Furthermore, we established a panel of microsatellite markers that could differentiate between non-invasive and invasive bladder cancer. However, further analyses in a larger cohort of patients are needed to assess their specificity and sensitivity. Finally, we identified high Ang-2 and low Tie2 gene expression as significant and independent risk factors of tumor recurrence and cancer related survival.
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Affiliation(s)
- Tibor Szarvas
- Semmelweis Egyetem, I. sz. Patológiai, és Kísérleti Rákkutató, Intézet, 1085 Budapest, Ulloi út 26.
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Bolenz C, Fernández MI, Tilki D, Herrmann E, Heinzelbecker J, Ergün S, Ströbel P, Reich O, Michel MS, Trojan L. The role of lymphangiogenesis in lymphatic tumour spread of urological cancers. BJU Int 2009; 104:592-7. [DOI: 10.1111/j.1464-410x.2009.08704.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Becker M, Tilki D, Szarvas T, Rübben H, Ergün S. Urinbasierte Angiogenesemarker beim Urothelkarzinom der Harnblase. Urologe A 2009; 48:609-14. [DOI: 10.1007/s00120-009-1989-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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