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Vergauwen E, Forsyth R, Vortmeyer A, Gläsker S. Expression of Hemangioblast Proteins in von Hippel-Lindau Disease Related Tumors. Cancers (Basel) 2023; 15:cancers15092551. [PMID: 37174017 PMCID: PMC10177177 DOI: 10.3390/cancers15092551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/23/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Von Hippel-Lindau (VHL) disease is a hereditary tumor syndrome that targets a highly selective subset of organs causing specific types of tumors. The biological basis for this principle of organ selectivity and tumor specificity is not well understood. VHL-associated hemangioblastomas share similar molecular and morphological features with embryonic blood and vascular precursor cells. Therefore, we suggest that VHL hemangioblastomas are derived from developmentally arrested hemangioblastic lineage keeping their potential of further differentiation. Due to these common features, it is of major interest to investigate whether VHL-associated tumors other than hemangioblastoma also share these pathways and molecular features. The expression of hemangioblast proteins has not yet been assessed in other VHL-related tumors. To gain a better understanding of VHL tumorigenesis, the expression of hemangioblastic proteins in different VHL-associated tumors was investigated. The expression of embryonic hemangioblast proteins Brachyury and TAL1 (T-cell acute lymphocytic leukemia protein 1) was assessed by immunohistochemistry staining on 75 VHL-related tumors of 51 patients: 47 hemangioblastomas, 13 clear cell renal cell carcinomas, 8 pheochromocytomas, 5 pancreatic neuroendocrine tumors, and 2 extra-adrenal paragangliomas. Brachyury and TAL1 expression was, respectively, observed in 26% and 93% of cerebellar hemangioblastomas, 55% and 95% of spinal hemangioblastomas, 23% and 92% of clear cell renal cell carcinomas, 38% and 88% of pheochromocytomas, 60% and 100% of pancreatic neuroendocrine tumors, and 50% and 100% of paragangliomas. We concluded that the expression of hemangioblast proteins in different VHL-associated tumors indicates a common embryological origin of these lesions. This may also explain the specific topographic distribution of VHL-associated tumors.
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Affiliation(s)
- Evelynn Vergauwen
- Department of Neurosurgery, Vrije Universiteit Brussel, Laarbeeklaan 101, 1090 Jette, Belgium
- Department of Neurology, Universiteit Antwerpen, Universiteitsplein 1, 2610 Antwerpen, Belgium
| | - Ramses Forsyth
- Department of Pathology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090 Jette, Belgium
- Experimental Pathology Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Jette, Belgium
| | - Alexander Vortmeyer
- Department of Pathology, Indiana University-Purdue University, 420 University Blvd, Indianapolis, IN 46202, USA
| | - Sven Gläsker
- Department of Neurosurgery, Vrije Universiteit Brussel, Laarbeeklaan 101, 1090 Jette, Belgium
- Neurosurgery Section, Gesundheitsverbund Landkreis Konstanz (GLKN), 78224 Singen am Hohentwiel, Germany
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Shively SB, Edwards NA, MacDonald TJ, Johnson KR, Diaz-Rodriguez NM, Merrill MJ, Vortmeyer AO. Developmentally Arrested Basket/Stellate Cells in Postnatal Human Brain as Potential Tumor Cells of Origin for Cerebellar Hemangioblastoma in von Hippel-Lindau Patients. J Neuropathol Exp Neurol 2022; 81:885-899. [PMID: 35980299 PMCID: PMC9803908 DOI: 10.1093/jnen/nlac073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
von Hippel-Lindau (VHL) disease is an autosomal dominant hereditary cancer disorder caused by a germline mutation in the VHL tumor suppressor gene. Loss of the wild-type allele results in VHL deficiency and the potential formation of cerebellar hemangioblastomas, which resemble embryonic hemangioblast proliferation and differentiation processes. Multiple, microscopic, VHL-deficient precursors, termed developmentally arrested structural elements (DASEs), consistently involve the cerebellar molecular layer in VHL patients, indicating the tumor site of origin. Unlike hemangioblastomas, however, cerebellar DASEs do not express brachyury, a mesodermal marker for hemangioblasts. In this study, neuronal progenitors occupying the molecular layer were investigated as tumor cells of origin. By immunohistochemistry, cerebellar DASEs and hemangioblastomas lacked immunoreactivity with antibody ZIC1 (Zic family member 1), a granule cell progenitor marker with concordance from oligonucleotide RNA expression array analyses. Rather, cerebellar DASEs and hemangioblastomas were immunoreactive with antibody PAX2 (paired box 2), a marker of basket/stellate cell progenitors. VHL cerebellar cortices also revealed PAX2-positive cells in Purkinje and molecular layers, resembling the histological and molecular development of basket/stellate cells in postnatal non-VHL mouse and human cerebella. These data suggest that VHL deficiency can result in the developmental arrest of basket/stellate cells in the human cerebellum and that these PAX2-positive, initiated cells await another insult or signal to form DASEs and eventually, tumors.
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Affiliation(s)
- Sharon Baughman Shively
- From the Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA,Department of Molecular Medicine, Institute for Biomedical Sciences, The George Washington University, Washington, District of Columbia, USA
| | - Nancy A Edwards
- From the Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Kory R Johnson
- Bioinformatics Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | | | | | - Alexander O Vortmeyer
- Send correspondence to: Alexander O. Vortmeyer, MD, PhD, Division of Neuropathology, Department of Pathology and Laboratory Medicine, Indiana University-Purdue University Indianapolis, 350 W. 11th Street, Suite 4034, Indianapolis, IN 46202, USA; E-mail:
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Healy V, O'Halloran PJ, Husien MB, Bolger C, Farrell M. Intermixed arteriovenous malformation and hemangioblastoma: case report and literature review. CNS Oncol 2020; 9:CNS66. [PMID: 33244995 PMCID: PMC7737198 DOI: 10.2217/cns-2020-0021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 10/27/2020] [Indexed: 12/14/2022] Open
Abstract
We report the third presentation of an intermixed arteriovenous malformation and hemangioblastoma. The rare occurrence of the diagnostic histologic features of both a neoplasm and vascular malformation in a single lesion is more common in gliomas, as angioglioma, and is termed an 'intermixed' lesion. We review the literature concerning the developmental biology of each lesion, and potential interplay in the formation of an intermixed vascular neoplasm and vascular malformation. The roles of cellular origin, genetic susceptibility, favourable microenvironment, altered local gene expression and key regulatory pathways are reviewed. Our review supports angiography and genetic profiling in intermixed lesions to inform management strategies. Consideration should be given to multimodality therapeutic interventions as required, including microsurgical resection, stereotactic radiosurgery and further research to exploit emerging molecular targets.
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Affiliation(s)
- Vincent Healy
- Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland
- Department of Neuroscience, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Philip J O'Halloran
- Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland
- Department of Neuroscience, Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | - Ciaran Bolger
- Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland
- Department of Neuroscience, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Michael Farrell
- Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland
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Gläsker S, Vergauwen E, Koch CA, Kutikov A, Vortmeyer AO. Von Hippel-Lindau Disease: Current Challenges and Future Prospects. Onco Targets Ther 2020; 13:5669-5690. [PMID: 32606780 PMCID: PMC7305855 DOI: 10.2147/ott.s190753] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 05/20/2020] [Indexed: 12/13/2022] Open
Abstract
Understanding of molecular mechanisms of tumor growth has an increasing impact on the development of diagnostics and targeted therapy of human neoplasia. In this review, we summarize the current knowledge on molecular mechanisms and their clinical implications in von Hippel-Lindau (VHL) disease. This autosomal dominant tumor syndrome usually manifests in young adulthood and predisposes affected patients to the development of benign and malignant tumors of different organ systems mainly including the nervous system and internal organs. A consequent screening and timely preventive treatment of lesions are crucial for patients affected by VHL disease. Surgical indications and treatment have been evaluated and optimized over many years. In the last decade, pharmacological therapies have been evolving, but are largely still at an experimental stage. Effective pharmacological therapy as well as detection of biomarkers is based on the understanding of the molecular basis of disease. The molecular basis of von Hippel-Lindau disease is the loss of function of the VHL protein and subsequent accumulation of hypoxia-inducible factor with downstream effects on cellular metabolism and differentiation. Organs affected by VHL disease may develop frank tumors. More characteristically, however, they reveal multiple separate microscopic foci of neoplastic cell proliferation. The exact mechanisms of tumorigenesis in VHL disease are, however, still not entirely understood and knowledge on biomarkers and targeted therapy is scarce.
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Affiliation(s)
- Sven Gläsker
- Neurosurgical Practise Lake Constance, Singen (Hohentwiel), Germany.,Department of Neurosurgery, VUB University Medical Center Brussels, Brussels, Belgium
| | - Evelynn Vergauwen
- Department of Neurosurgery, VUB University Medical Center Brussels, Brussels, Belgium.,Department of Neurology, University Hospital Antwerp, Antwerp, Belgium
| | | | | | - Alexander O Vortmeyer
- Department of Pathology, Indiana University-Purdue University, Indianapolis, IN, USA
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Klingler JH, Gläsker S, Bausch B, Urbach H, Krauss T, Jilg CA, Steiert C, Puzik A, Neumann-Haefelin E, Kotsis F, Agostini H, Neumann HPH, Beck J. Hemangioblastoma and von Hippel-Lindau disease: genetic background, spectrum of disease, and neurosurgical treatment. Childs Nerv Syst 2020; 36:2537-2552. [PMID: 32507909 PMCID: PMC7575510 DOI: 10.1007/s00381-020-04712-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 05/28/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Hemangioblastomas are rare, histologically benign, highly vascularized tumors of the brain, the spinal cord, and the retina, occurring sporadically or associated with the autosomal dominant inherited von Hippel-Lindau (VHL) disease. Children or adults with VHL disease have one of > 300 known germline mutations of the VHL gene located on chromosome 3. They are prone to develop hemangioblastomas, extremely rarely starting at age 6, rarely at age 12-18, and, typically and almost all, as adults. There is a plethora of VHL-associated tumors and cysts, mainly in the kidney, pancreas, adrenals, reproductive organs, and central nervous system. Due to a lack of causal treatment, alleviation of symptoms and prevention of permanent neurological deficits as well as malignant transformation are the main task. Paucity of data and the nonlinear course of tumor progression make management of pediatric VHL patients with hemangioblastomas challenging. METHODS The Freiburg surveillance protocol was developed by combining data from the literature and our experience of examinations of > 300 VHL patients per year at our university VHL center. RESULTS Key recommendations are to start screening of patients at risk by funduscopy with dilated pupils for retinal tumors with admission to school and with MRI of the brain and spinal cord at age 14, then continue biannually until age 18, with emergency MRI in case of neurological symptoms. Indication for surgery remains personalized and should be approved by an experienced VHL board, but we regard neurological symptoms, rapid tumor growth, or critically large tumor/cyst sizes as the key indications to remove hemangioblastomas. Since repeated surgery on hemangioblastomas in VHL patients is not rare, modern neurosurgical techniques should encompass microsurgery, neuronavigation, intraoperative neuromonitoring, fluorescein dye-based intraoperative angiography, intraoperative ultrasound, and minimally invasive approaches, preceded in selected cases by endovascular embolization. Highly specialized neurosurgeons are able to achieve a very low risk of permanent morbidity for the removal of hemangioblastomas from the cerebellum and spinal cord. Small retinal tumors of the peripheral retina can be treated by laser coagulation, larger tumors by cryocoagulation or brachytherapy. CONCLUSION We consider management at experienced VHL centers mandatory and careful surveillance and monitoring of asymptomatic lesions are required to prevent unnecessary operations and minimize morbidity.
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Affiliation(s)
- Jan-Helge Klingler
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Str. 64, 79106, Freiburg, Germany.
| | - Sven Gläsker
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Str. 64, 79106, Freiburg, Germany
- Department of Neurosurgery, Universitair Ziekenhuis Brussel, VUB University, Brussels, Belgium
| | - Birke Bausch
- Department of Medicine II, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Horst Urbach
- Department of Neuroradiology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Tobias Krauss
- Department of Radiology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Cordula A Jilg
- Department of Urology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Christine Steiert
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Str. 64, 79106, Freiburg, Germany
| | - Alexander Puzik
- Department of Pediatric Hematology and Oncology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Elke Neumann-Haefelin
- Department of Medicine IV, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Fruzsina Kotsis
- Department of Medicine IV, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Hansjürgen Agostini
- Eye Center, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Hartmut P H Neumann
- Section for Preventive Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jürgen Beck
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Str. 64, 79106, Freiburg, Germany
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Chappell JC, Payne LB, Rathmell WK. Hypoxia, angiogenesis, and metabolism in the hereditary kidney cancers. J Clin Invest 2019; 129:442-451. [PMID: 30614813 DOI: 10.1172/jci120855] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The field of hereditary kidney cancer has begun to mature following the identification of several germline syndromes that define genetic and molecular features of this cancer. Molecular defects within these hereditary syndromes demonstrate consistent deficits in angiogenesis and metabolic signaling, largely driven by altered hypoxia signaling. The classical mutation, loss of function of the von Hippel-Lindau (VHL) tumor suppressor, provides a human pathogenesis model for critical aspects of pseudohypoxia. These features are mimicked in a less common hereditary renal tumor syndrome, known as hereditary leiomyomatosis and renal cell carcinoma. Here, we review renal tumor angiogenesis and metabolism from a HIF-centric perspective, considering alterations in the hypoxic landscape, and molecular deviations resulting from high levels of HIF family members. Mutations underlying HIF deregulation drive multifactorial aberrations in angiogenic signals and metabolism. The mechanisms by which these defects drive tumor growth are still emerging. However, the distinctive patterns of angiogenesis and glycolysis-/glutamine-dependent bioenergetics provide insight into the cellular environment of these cancers. The result is a scenario permissive for aggressive tumorigenesis especially within the proximal renal tubule. These features of tumorigenesis have been highly actionable in kidney cancer treatments, and will likely continue as central tenets of kidney cancer therapeutics.
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Affiliation(s)
- John C Chappell
- Center for Heart and Regenerative Medicine, Departments of Biomedical Sciences and Biomedical Engineering and Mechanics, Virginia Tech Carilion Research Institute, Roanoke, Virginia, USA
| | - Laura Beth Payne
- Center for Heart and Regenerative Medicine, Departments of Biomedical Sciences and Biomedical Engineering and Mechanics, Virginia Tech Carilion Research Institute, Roanoke, Virginia, USA
| | - W Kimryn Rathmell
- Vanderbilt-Ingram Cancer Center, Departments of Medicine and Biochemistry, Division of Hematology and Oncology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Krüger MT, Klingler JH, Jilg C, Steiert C, Zschiedrich S, Van Velthoven V, Gläsker S. Polyglobulia in patients with hemangioblastomas is related to tumor size but not to serum erythropoietin. Hered Cancer Clin Pract 2018; 16:15. [PMID: 30214643 PMCID: PMC6131788 DOI: 10.1186/s13053-018-0097-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 08/30/2018] [Indexed: 11/10/2022] Open
Abstract
Background Hemangioblastomas are associated with elevated hemoglobin (Hb) levels (polyglobulia), which is associated with a higher risk for cerebral stroke, cardiac infarction and pulmonary embolism. The pathomechanism of polyglobulia remains unclear and different theories have been postulated. Among those are elevated serum erythropoietin (EPO) levels caused by secretion of the tumor or associated tumor cyst. Methods To elucidate the pathomechanism, we systematically investigated the relation between polyglobulia, serum EPO level, size of the solid tumor and associated cyst in hemangioblastomas. We prospectively evaluated hemoglobin and EPO levels in a series of 33 consecutive patients operated on hemangioblastomas in our center. We measured the size of the solid tumor and associated cyst in magnetic resonance imaging. Statistical evaluations were performed using the Fisher's exact test and student's t-test. Results As a result five patients had elevated hemoglobin levels. Only one of these had an elevated serum EPO level. Of 26 patients with normal hemoglobin levels, 4 patients had elevated EPO levels.Patients with low or normal hemoglobin levels (84%) had an average tumor size of 0.8 cm3, which differed significantly from patients with elevated hemoglobin levels (16%), who had an average solid tumor size of 8.0 cm3 (p < 0.05). We did not observe a significant correlation between EPO levels or polyglobulia and associated cysts. Conclusions We therefore conclude that in contrast to previous case reports and interpretations, our data show no correlation between polyglobulia and EPO levels or associated cysts in patients with hemangioblastomas. In fact, it is the size of the solid tumor that correlates with polyglobulia.The study was retrospectively registered in the German Clinical Trial Registry on 10 July 2014; Trial registration: DRKS00006310.
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Affiliation(s)
- Marie T Krüger
- 1Department of Neurosurgery, Freiburg University Medical Center, Freiburg, Germany
| | - Jan-Helge Klingler
- 1Department of Neurosurgery, Freiburg University Medical Center, Freiburg, Germany
| | - Cordula Jilg
- 2Department of Urology, Freiburg University Medical Center, Freiburg, Germany
| | - Christine Steiert
- 1Department of Neurosurgery, Freiburg University Medical Center, Freiburg, Germany
| | - Stefan Zschiedrich
- 3Department of Internal Medicine, Section for Preventive Medicine, Freiburg University Medical Center, Freiburg, Germany
| | - Vera Van Velthoven
- 4Department of Neurosurgery, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090 Brussel, Belgium
| | - Sven Gläsker
- 1Department of Neurosurgery, Freiburg University Medical Center, Freiburg, Germany.,4Department of Neurosurgery, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090 Brussel, Belgium
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Wang Y, Chen D, Chen M, Ji K, Ma D, Zhou L. A Comprehensive Procedure to Evaluate the In Vitro Performance of the Putative Hemangioblastoma Neovascularization Using the Spheroid Sprouting Assay. J Vis Exp 2018. [PMID: 29708531 DOI: 10.3791/57183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The inactivation of the von Hippel-Lindau (VHL) tumor suppressor gene plays a crucial role in the development of hemangioblastomas (HBs) within the human central nervous system (CNS). However, both the cytological origin and the evolutionary process of HBs (including neovascularization) remain controversial, and anti-angiogenesis for VHL-HBs, based on classic HB angiogenesis, have produced disappointing results in clinical trials. One major obstacle to the successful clinical translation of anti-vascular treatment is the lack of a thorough understanding of neovascularization in this vascular tumor. In this article, we present a comprehensive procedure to evaluate in vitro whether classic tumor angiogenesis exists in HBs, as well as its role in HBs. With this procedure, researchers can accurately understand the complexity of HB neovascularization and identify the function of this common form of angiogenesis in HBs. These protocols can be used to evaluate the most promising anti-vascular therapy for tumors, which has high translational potential either for tumors treatment or for aiding in the optimization of the anti-angiogenic treatment for HBs in future translations. The results highlight the complexity of HB neovascularization and suggest that this common form angiogenesis is only a complementary mechanism in HB neovascularization.
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Affiliation(s)
- Ying Wang
- Department of Neurosurgery, Huashan Hospital, Fudan University
| | - DanQi Chen
- Department of Neurosurgery, Huashan Hospital, Fudan University
| | - MingYu Chen
- Department of Neurosurgery, Huashan Hospital, Fudan University
| | - KaiYuan Ji
- Department of Neurosurgery, Huashan Hospital, Fudan University
| | - DeXuan Ma
- Department of Neurosurgery, Huashan Hospital, Fudan University;
| | - LiangFu Zhou
- Department of Neurosurgery, Huashan Hospital, Fudan University;
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Wang Y, Chen DQ, Chen MY, Ji KY, Ma DX, Zhou LF. Endothelial cells by inactivation of VHL gene direct angiogenesis, not vasculogenesis via Twist1 accumulation associated with hemangioblastoma neovascularization. Sci Rep 2017; 7:5463. [PMID: 28710479 PMCID: PMC5511164 DOI: 10.1038/s41598-017-05833-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 06/05/2017] [Indexed: 12/28/2022] Open
Abstract
Inactivation of the VHL tumour suppressor gene is a highly frequent genetic event in the carcinogenesis of central nervous system-(CNS) hemangioblastomas (HBs). The patterning of the similar embryonic vasculogenesis is an increasing concern in HB-neovascularization, and the classic vascular endothelial growth factor (VEGF)-mediated angiogenesis driven by VHL loss-of-function from human endothelium have been questioned. With this regard, we identify a distinct, VHL silencing-driven mechanism in which human vascular endothelial cells by means of increasing cell proliferation and decreasing cell apoptosis, is concomitant with facilitating accumulation of Twist1 protein in vascular endothelial cells in vitro. Importantly, this molecular mechanism is also pinpointed in CNS-HBs, and associated with the process of HB-neovascularization. In contrast with recent studies of HB-neovascularization, these modified cells did not endow with the typical features of vasculogenesis, indicating that this is a common angiogenesis implementing the formation of the vascular network. Taken together, these findings suggest that vasculogenesis and angiogenesis may constitute complementary mechanisms for HB-neovascularization, and could provide a rational recognition of single anti-angiogenic intervention including targeting to the Twist1 signalling for HBs.
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Affiliation(s)
- Ying Wang
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Dan-Qi Chen
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Ming-Yu Chen
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Kai-Yuan Ji
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - De-Xuan Ma
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - Liang-Fu Zhou
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
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CD41 and CD45 expression marks the angioformative initiation of neovascularisation in human haemangioblastoma. Tumour Biol 2015; 37:3765-74. [DOI: 10.1007/s13277-015-4200-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 10/05/2015] [Indexed: 12/17/2022] Open
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Albiñana V, Villar Gómez de Las Heras K, Serrano-Heras G, Segura T, Perona-Moratalla AB, Mota-Pérez M, de Campos JM, Botella LM. Propranolol reduces viability and induces apoptosis in hemangioblastoma cells from von Hippel-Lindau patients. Orphanet J Rare Dis 2015; 10:118. [PMID: 26394686 PMCID: PMC4579575 DOI: 10.1186/s13023-015-0343-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 09/16/2015] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Von Hippel-Lindau (VHL) disease is a rare oncological disease with an incidence of 1:36,000, and is characterized by the growth of different types of tumors: hemangioblastomas in the central nervous system (CNS) and retina, renal carcinoma, pheochromocytomas, pancreatic serous cystadenoma, and endolymphatic sac tumors. These tumors do not express VHL protein (pVHL). pVHL ubiquitinates hypoxia inducible factor (HIF) protein for degradation by the proteasome; in the absence of VHL, HIF translocates to the nucleus to activate the expression of its target genes. Targeting VHL-derived tumors with drugs that have reduced side effects is urgent to avoid repeat CNS surgeries. Recent reports have shown that propranolol, a β-blocker used for the treatment of hypertension and other cardiac and neurological diseases, is the best option for infantile hemangioma (IH). Propranolol could be an efficient treatment to control hemangioblastoma growth in VHL disease because of its antiangiogenic effects demonstrated in IH and the hypothetical impact on HIF levels. METHODS HeLa 9X (HRE) hypoxia responsive element cell line and primary hemangioblastoma-derived cells were subjected to propranolol treatment and cell viability and apoptosis were evaluated. HIF1-α and Hif-2α expression after propranolol treatment was analyzed by western blotting. Quantitative PCR was performed to study the mRNA expression of HIF target genes. Vascular endothelial growth factor (VEGF) was measured in culture supernatants by immunoassay. RESULTS Propranolol downregulated HIF-dependent transcription in HeLa 9XHRE cells. Under hypoxic conditions, propranolol decreased the expression of HIF target genes in hemangioblastoma cells, which stopped proliferating and died following long-term treatment. These results suggests that propranolol treatment promoted reduced HIF protein expression and corresponding downregulation of HIF target genes, and inhibited cell proliferation in parallel with induction of cell death by apoptosis. CONCLUSIONS Our results suggest that propranolol could reduce the growth of HIF-dependent tumors and may thus be a promising treatment to delay surgery in VHL patients.
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Affiliation(s)
| | | | - Gemma Serrano-Heras
- Unidad de Investigación, Complejo Universitario Hospital Albacete, Albacete, Spain.
| | - Tomás Segura
- Unidad de Investigación, Complejo Universitario Hospital Albacete, Albacete, Spain.
| | | | | | | | - Luisa María Botella
- Centro de Investigaciones Biológicas, CSIC, Madrid, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain.
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Pathology of the Nervous System in Von Hippel-Lindau Disease. J Kidney Cancer VHL 2015; 2:114-129. [PMID: 28326266 PMCID: PMC5345532 DOI: 10.15586/jkcvhl.2015.35] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 06/06/2015] [Indexed: 12/18/2022] Open
Abstract
Von Hippel-Lindau (VHL) disease is a tumor syndrome that frequently involves the central nervous system (CNS). It is caused by germline mutation of the VHL gene. Subsequent VHL inactivation in selected cells is followed by numerous well-characterized molecular consequences, in particular, activation and stabilization of hypoxia-inducible factors HIF1 and HIF2. The link between VHL gene inactivation and tumorigenesis remains poorly understood. Hemangioblastomas are the most common manifestation in the CNS; however, CNS invasion by VHL disease-associated endolymphatic sac tumors or metastatic renal cancer also occur, and their differentiation from primary hemangioblastoma may be challenging. Finally, in this review, we present recent morphologic insights on the developmental concept of VHL tumorigenesis which is best explained by pathologic persistence of temporary embryonic progenitor cells.
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