scholarly journals Notch receptor and effector expression in von Hippel-Lindau disease–associated central nervous system hemangioblastomas

2011 ◽  
Vol 115 (3) ◽  
pp. 512-517 ◽  
Author(s):  
Marsha J. Merrill ◽  
Nancy A. Edwards ◽  
Russell R. Lonser
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Western Blot ◽  
Stromal Cells ◽  
Immunohistochemical Analysis ◽  
Receptor Expression ◽  
Vascular Cells ◽  
Von Hippel Lindau ◽  
Notch Receptors ◽  
Vhl Disease

Object Central nervous system hemangioblastomas are the most common manifestation of von Hippel-Lindau (VHL) disease, an autosomal dominant tumor suppressor syndrome that results in loss of VHL protein function and continuous upregulation of hypoxia-inducible factors. These tumors are composed of neoplastic stromal cells and abundant vasculature. Stromal cells express markers consistent with multipotent embryonically arrested hemangioblasts, which are precursors for hematopoietic and vascular lineages. Notch receptors are transmembrane signaling molecules that regulate multiple developmental processes including hematopoiesis and vasculogenesis. To investigate the importance of notch signaling in the development of VHL disease–associated CNS hemangioblastomas, the authors examined the presence of the four notch receptors and downstream notch effectors in this setting. Methods The authors used surgical specimens obtained from confirmed VHL-associated hemangioblastomas. Immunohistochemical analysis for the four notch receptors and the downstream effectors was performed on formalin-fixed paraffin-embedded sections. Western blot analysis for HES1 was performed on frozen specimens. Results All four notch receptors are present in hemangioblastomas. NOTCH1 and NOTCH4 receptors were widely and prominently expressed in both the stromal and vascular cells, NOTCH2 receptor expression was limited to primarily stromal cells, and NOTCH3 receptor expression was limited to vascular cells. All 4 receptors displayed a nuclear presence. Immunohistochemical analysis also demonstrated that downstream notch effectors, HES1 and HES5, were uniformly expressed in tumor stromal and vascular cells, but HES3, HEY1, and HEY2 were not. Strong HES1 expression was confirmed by Western blot analysis. Conclusions The presence of all four notch receptors and downstream effector molecules suggests that the notch signaling pathway plays a critical role in the maintenance of the undifferentiated pluripotent phenotype of these tumors and in the associated vascular response. Moreover, the prominent expression of notch receptors in VHL-associated CNS hemangioblastomas reveals a new and possibly potent therapeutic target.

A 10-year retrospective study of hemangioblastomas of the central nervous system with reference to von Hippel–Lindau (VHL) disease

2011 ◽  
Vol 18 (7) ◽  
pp. 939-944 ◽  
Author(s):  
Somanath Padhi ◽  
RajLaxmi Sarangi ◽  
Sundaram Challa ◽  
Priyatamjee Bussary ◽  
Manas K. Panigrahi ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Retrospective Study ◽  
Von Hippel Lindau ◽  
The Central Nervous System ◽  
Vhl Disease

scholarly journals Pathology of the Nervous System in Von Hippel-Lindau Disease

2015 ◽  
Vol 2 (3) ◽  
pp. 114-129 ◽  
Author(s):  
Alexander O. Vortmeyer ◽  
Ahmed K. Alomari
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Hypoxia Inducible Factors ◽  
Metastatic Renal Cancer ◽  
Vhl Gene ◽  
Von Hippel Lindau ◽  
Von Hippel Lindau Disease ◽  
The Central Nervous System ◽  
Vhl Disease ◽  
Common Manifestation

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. 

Hemangioblastomas of the Central Nervous System in von Hippel-Lindau Syndrome and Sporadic Disease

Neurosurgery ◽  
2001 ◽  
Vol 48 (1) ◽  
pp. 55-63 ◽  
Author(s):  
James E. Conway ◽  
Dean Chou ◽  
Richard E. Clatterbuck ◽  
Henry Brem ◽  
Donlin M. Long ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Central Nervous System ◽  
Nervous System ◽  
Von Hippel Lindau ◽  
Multiple Lesions ◽  
Younger Age ◽  
The Central Nervous System ◽  
Sporadic Disease ◽  
Vhl Disease

Abstract OBJECTIVE The presentation, screening, management, and clinical outcomes of patients who presented to our institution from 1973 to 1999 with central nervous system (CNS) hemangioblastomas in von Hippel-Lindau (VHL) syndrome and sporadic disease were analyzed. METHODS The surgical pathology database of our institution was searched to identify all patients with histologically verified CNS hemangioblastomas occurring from 1973 to 1999. The medical, radiological, surgical, pathological, and autopsy records from these patients were reviewed retrospectively and statistically analyzed. RESULTS Forty patients (21 males and 19 females) presented with CNS hemangioblastomas. Twenty-five patients (62%) harbored sporadic hemangioblastomas. Fifteen patients (38%) had VHL syndrome. These 40 patients presented with 61 hemangioblastomas (8 patients had multiple lesions). Ten patients (25%) harbored spinal cord hemangioblastomas (5 patients had multiple lesions). Patients with VHL disease tended to present with neurological symptoms and signs at a younger age than patients with sporadic disease (P = 0.09), to present with multiple lesions (53%), and to develop new lesions (rate, 1 lesion/2.1 yr). Hemangioblastomas of the spinal cord were more prevalent in patients with VHL syndrome (P = 0.024). Neuroradiological screening of patients with VHL syndrome allowed identification of more than 75% of new lesions before they became symptomatic. Sixty-six surgical procedures were performed (12 patients required multiple operations). Six patients with VHL syndrome required surgery for new lesions. Surgical complications occurred in six patients (15%). Symptom resolution or arrest of progression at 1 year was documented in 88% of patients. Recurrence of symptoms from partially resected lesions occurred in eight patients (20%). No deaths associated with surgery occurred. One patient with sporadic disease and one patient with VHL syndrome (5%) died as a result of late medical complications from CNS hemangioblastomas. CONCLUSION Surgical outcomes for patients with CNS hemangioblastomas are favorable. However, management of hemangioblastomas is a more difficult and prolonged endeavor for patients with VHL syndrome. In patients with VHL syndrome, neuroradiological screening allows identification of lesions before they become symptomatic. Because patients with VHL syndrome are at risk for development of new lesions, they require lifelong follow-up.

scholarly journals GFAP and desmin expression in lymphatic tissues leads to difficulties in distinguishing between glial and stromal cells

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hauke Simon Günther ◽  
Stephan Henne ◽  
Jasmin Oehlmann ◽  
Julia Urban ◽  
Desiree Pleizier ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Immune Cells ◽  
Stromal Cells ◽  
Immunohistochemical Analysis ◽  
Lymphoid Organs ◽  
Peripheral Tissues ◽  
The Central Nervous System ◽  
Antigen Presenting ◽  
Cell Zone

AbstractRecently, we found many immune cells including antigen presenting cells neurally hard wired in the T-cell zone of most lymphoid organs like amongst others, lymph nodes in rats, mice and humans. Single immune cells were reached by single neurites and enclosed with a dense neural meshwork. As it is well known that axons are always accompanied by glial cells, we were able to identify Schwann cells in the hilum, medullary and capsule region, like expected. Unexpected was the result, that we found oligodendrocyte-like cells in these regions, myelinating more than one axon. Likewise important was the finding, that one of the standard glial markers used, a polyclonal GFAP antibody equally bound to desmin and therefore marked nearly all stromal cells in cortical, paracortical and medullary cord regions. More detailed analysis showed that these results also appeared in many other non-lymphoid organs. Therefore, polyclonal GFAP antibodies are only conditionally usable for immunohistochemical analysis in peripheral tissues outside the central nervous system. It remains to be elucidated, if the binding of the GFAP antibody to desmin has its reason in a special desmin variant that can give stromal cells glial character.

scholarly journals SURG-32. DIFFERENCES IN SURGICAL OUTCOME BETWEEN VON HIPPEL-LINDAU DISEASE RELATED AND SPORADIC HEMANGIOBLASTOMAS IN THE CENTRAL NERVOUS SYSTEM

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii210-ii210
Author(s):  
Shohei Nambu ◽  
Shunsaku Takayanagi ◽  
Hirokazu Takami ◽  
Taichi Kin ◽  
Shota Tanaka ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Central Nervous System ◽  
Nervous System ◽  
Medulla Oblongata ◽  
Surgical Outcome ◽  
Vascular Tumor ◽  
Von Hippel Lindau ◽  
Significant Difference ◽  
Sporadic Cases ◽  
Vhl Disease

Abstract Central nervous system hemangioblastoma (CNS HB) is a benign but highly vascular tumor, which accounts for 1.7% of all intracranial tumors. CNS HBs predominantly arise in the cerebellum, brainstem, and spinal cord. Approximately 20% of CNS HB is related to von-Hippel-Lindau (VHL) disease and repeated surgical resections are often required in VHL patients due to the presence of multiple CNS HBs. To explore the differences of surgical effect between VHL disease related and sporadic CNS HBs, outcome analyses were performed based on the tumor locations. PATIENT AND METHODS: A total 83 cases that underwent surgical resections of CNS HBs at Tokyo University in 1996-2019 were included. Clinical information including age, sex, number of past surgical resections, pre- and post-operative modified Rankin Scale(mRS) were examined. RESULTS: Regarding the etiology, 46 VHL cases(cerebellum:30, medulla oblongata:6, spinal cord:10) and 37 sporadic cases (cerebellum: 28, medulla oblongata:4, spinal cord:5) were enrolled. The average changes in the postoperative mRS minus preoperative mRS were cerebellum -0.9/medulla oblongata -0.5/spinal cord -0.8 for VHL cases, and cerebellum -0.75/medulla oblongata -1/spinal cord -1 for sporadic cases. Fisher`s exact tests were used for between-group comparison. DISCUSSION: The study showed no statistically significant difference between cerebellar and spinal cord cases regarding the perioperative change in the patient capability. Because of multiple lesions and repeated surgeries, VHL patients have a possibility to present with worse neurology after surgery. Further analysis is needed to clarify differences in surgical outcome for VHL disease related and sporadic related CNS HBs.

scholarly journals Pathological and Clinical Features and Management of Central Nervous System Hemangioblastomas in von Hippel-Lindau Disease

2014 ◽  
Vol 1 (4) ◽  
pp. 46-55 ◽  
Author(s):  
Hiroshi Kanno ◽  
Natsuki Kobayashi ◽  
Satoshi Nakanowatari
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Clinical Features ◽  
Vascular Tumor ◽  
Preoperative Embolization ◽  
Von Hippel Lindau ◽  
Von Hippel Lindau Disease ◽  
Vhl Disease ◽  
Perioperative Hemorrhage

Central nervous system (CNS) hemangioblastoma is the most common manifestation of von Hippel-Lindau (VHL) disease. It is found in 70-80% of VHL patients. Hemangioblastoma is a rare form of benign vascular tumor of the CNS, accounting for 2.0% of CNS tumors. It can occur sporadically or as a familial syndrome. CNS hemangioblastomas are typically located in the posterior fossa and the spinal cord. VHL patients usually develop a CNS hemangioblastoma at an early age. Therefore, they require a special routine for diagnosis, treatment and follow-up. The surgical management of symptomatic tumors depends on many factors such as symptom, location, multiplicity, and progression of the tumor. The management of asymptomatic tumors in VHL patients is controversial since CNS hemangioblastomas grow with intermittent quiescent and rapid-growth phases. Preoperative embolization of large solid hemangioblastomas prevents perioperative hemorrhage but is not necessary in every case. Radiotherapy should be reserved for inoperable tumors. Because of complexities of VHL, a better understanding of the pathological and clinical features of hemangioblastoma in VHL is essential for its proper management.

scholarly journals Central Nervous System Hemangioblastoma in a Pediatric Patient Associated With Von Hippel-Lindau Disease: A Case Report and Literature Review

2021 ◽  
Vol 11 ◽  
Author(s):  
Bo Yang ◽  
Zhenyu Li ◽  
Yubo Wang ◽  
Chaoling Zhang ◽  
Zhen Zhang ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Optic Nerve ◽  
Pediatric Patient ◽  
Tumor Resection ◽  
Phenotypic Expression ◽  
Vhl Gene ◽  
Von Hippel Lindau ◽  
Suprasellar Region ◽  
Vhl Disease

BackgroundHemangioblastoma is a benign tumor of the central nervous system and may appear as a component of von Hippel-Lindau (VHL) disease. At present, approximately 40 cases of optic nerve HGBs have been reported in the literature. VHL disease is a rare autosomal-dominant inherited cancer syndrome with different phenotypes caused by variants in the VHL gene. Herein, the authors describe a case of a pediatric patient with VHL disease and with optic nerve HGB, a rare phenotypic expression. The purpose of this study was to explore the genotype-phenotype, clinical features, treatment and follow-up of VHL-associated hemangioblastomas in pediatric patients.Case DescriptionA 12-year-old boy presented with vision loss, headache and dizziness at our hospital. Magnetic resonance imaging (MRI) revealed a large (19.8 mm*18.5 mm*23.5 mm) irregular mass located in the suprasellar region. The mass was successfully removed after craniotomy and microsurgical treatment. The pathological diagnosis was left optic nerve HGB. Genetic analyses showed p.Pro86Leu (c. 257C>T) heterozygous missense mutations in the VHL gene.ConclusionThis is the first reported pediatric case of VHL-associated optic nerve HGB. The genotype-phenotype correlation of VHL disease may provide new evidences for predicting tumor penetrance and survival. Gross tumor resection combined with stereotactic radiosurgery might be the most beneficial treatment.

scholarly journals Investigation and Management of Apparently Sporadic Central Nervous System Haemangioblastoma for Evidence of Von Hippel–Lindau Disease

Genes ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1414
Author(s):  
Hugh Furness ◽  
Louay Salfity ◽  
Johanna Devereux ◽  
Dorothy Halliday ◽  
Helen Hanson ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Genetic Testing ◽  
Clinical Genetics ◽  
Ophthalmological Examination ◽  
Von Hippel Lindau ◽  
History Of ◽  
Von Hippel Lindau Disease ◽  
Vhl Disease

Haemangioblastomas are rare, highly vascularised tumours that typically occur in the cerebellum, brain stem and spinal cord. Up to a third of individuals with a haemangioblastoma will have von Hippel–Lindau (VHL) disease. Individuals with haemangioblastoma and underlying VHL disease present, on average, at a younger age and frequently have a personal or family history of VHL disease-related tumours (e.g., retinal or central nervous system (CNS) haemangioblastomas, renal cell carcinoma, phaeochromocytoma). However, a subset present an apparently sporadic haemangioblastoma without other features of VHL disease. To detect such individuals, it has been recommended that genetic testing and clinical/radiological assessment for VHL disease should be offered to patients with a haemangioblastoma. To assess “real-world” clinical practice, we undertook a national survey of clinical genetics centres. All participating centres responded that they would offer genetic testing and a comprehensive assessment (ophthalmological examination and CNS and abdominal imaging) to a patient presenting with a CNS haemangioblastoma. However, for individuals who tested negative, there was variability in practice with regard to the need for continued follow-up. We then reviewed the results of follow-up surveillance in 91 such individuals seen at four centres. The risk of developing a potential VHL-related tumour (haemangioblastoma or RCC) was estimated at 10.8% at 10 years follow-up. The risks of developing a recurrent haemangioblastoma were higher in those who presented <40 years of age. In the light of these and previous findings, we propose an age-stratified protocol for surveillance of VHL-related tumours in individuals with apparently isolated haemangioblastoma.

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