cystadenoma/hypoxia

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Chondroitin sulfate proteoglycan CSPG4 as a novel hypoxia-sensitive marker in pancreatic tumors.

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CSPG4 marks pericytes, undifferentiated precursors and tumor cells. We assessed whether the shed ectodomain of CSPG4 (sCSPG4) might circulate and reflect potential changes in CSPG4 tissue expression (pCSPG4) due to desmoplastic and malignant aberrations occurring in pancreatic tumors. Serum sCSPG4

Epididymal cystadenomas and epithelial tumourlets: effects of VHL deficiency on the human epididymis.

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Although epididymal cystadenomas (ECAs) are among the most frequent VHL disease-associated tumours, fundamental questions about their pathogenesis have remained unanswered. Classification of ECAs is controversial, and the cell of origin is unknown. It is also unknown whether ECAs-like other VHL

Expression of vascular endothelial growth factor in von Hippel-Lindau syndrome-associated papillary cystadenoma of the epididymis.

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Vascular endothelial growth factor (VEGF) is a hypoxia inducible angiogenic and vascular permeability factor. Although VEGF expression in glioblastoma is induced by hypoxia, its expression in renal cell carcinoma and hemangioblastoma is thought to be related to mutation of the von Hippel-Lindau

Esophagogastric varices due to arterioportal shunt in a serous cystadenoma of the pancreas in von Hippel-Lindau disease.

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Von Hippel-Lindau (VHL) disease is an autosomal dominant inherited disorder characterized by extensively vascularized tumors and cysts in specific organs. Angiogenesis is a striking future of VHL disease with its characteristic cysts and well-vascularized tumors. The hypervascular nature of VHL

Is serous cystadenoma of the pancreas a model of clear-cell-associated angiogenesis and tumorigenesis?

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BACKGROUND Similar to the other von Hippel-Lindau (VHL)-related tumors such as renal cell carcinomas and capillary hemangioblastomas, serous cystadenomas (SCAs) of the pancreas are also characterized by clear cells. Over the years, we have also noticed that the tumor epithelium shows a prominent

Papillary cystadenoma of the epididymis.

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Papillary cystadenoma is a rare benign neoplasm of the epididymis, occurring mainly in young adult males. More than one-third of the cases reported in the literature have occurred in patients with von Hippel-Lindau disease. Conversely, epididymal nodules presumed to be papillary cystadenomas are

Expression of hypoxia-inducible factor 1alpha in epithelial ovarian tumors: its impact on prognosis and on response to chemotherapy.

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OBJECTIVE To investigate the impact of expression of hypoxia-inducible factor (HIF)-1alpha on prognosis and on response to chemotherapy in epithelial ovarian tumors. METHODS Expression of HIF-1alpha protein was studied by immunohistochemistry in 102 specimens of epithelial ovarian cancers, in 50

Expression of transmembrane carbonic anhydrases IX and XII in ovarian tumours.

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OBJECTIVE Carbonic anhydrase (CA) isozymes IX and XII have been suggested to play a role in oncogenic processes. The aim of the present study was to investigate CA IX and XII expression in patients with ovarian tumours. RESULTS A series of ovarian tumours was immunostained for CA IX and XII and the

Serum and tissue LDH levels in patients with breast/gynaecological cancer and benign diseases.

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BACKGROUND Lactate dehydrogenase A (LDHA) is involved in anaerobic glycolysis. In cancer patients, serum total lactate dehydrogenase (LDH) levels are often increased, and the gene for one of its isoenzymes, LDHA, is up-regulated. These features have been linked to poor prognosis in several

Von Hippel-Lindau disease.

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Von Hippel-Lindau (VHL) disease is an uncommon, autosomal dominant hereditary multitumor syndrome caused by germline alterations of the VHL gene, which has been cloned recently and identified as a tumor suppressor gene. The major lesions in VHL disease include hemangioblastomas in the central

Molecular analysis of the von hippel-lindau disease gene.

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Von Hippel-Lindau (VHL) disease is an autosomal dominant disorder that predisposes the affected individual to develop characteristic tumors. These include CNS hemangioblastoma, retinal angiomas, endolymphatic sac tumors, pancreatic cysts and tumors, epididymal cystadenomas, pheochromocytomas, renal

Serous cystic neoplasms of the pancreas: clinicopathologic and molecular characteristics.

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We herein summarize the pathology and most recent advances in the molecular genetics of serous cystic neoplasms of the pancreas. They typically present as relatively large, well-demarcated tumors (mean size, 6cm), predominantly occurring in females. Pre-operative diagnosis remains challenging;

Tumors in von Hippel-Lindau Syndrome: From Head to Toe-Comprehensive State-of-the-Art Review.

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Von Hippel-Lindau syndrome (VHL) is an autosomal-dominant hereditary tumor disease that arises owing to germline mutations in the VHL gene, located on the short arm of chromosome 3. Patients with VHL may develop multiple benign and malignant tumors involving various organ systems, including retinal

Activation of the PI3K/AKT pathway mediates FSH-stimulated VEGF expression in ovarian serous cystadenocarcinoma.

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There is evidence to suggest that follicle-stimulating hormone (FSH) can facilitate the neovascularization of ovarian cancers by increasing vascular endothelial growth factor (VEGF) expression in cancer cells, although the underlying molecular mechanism of this process is not well known. Therefore,

Propranolol reduces viability and induces apoptosis in hemangioblastoma cells from von Hippel-Lindau patients.

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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

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