{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T10:28:05Z","timestamp":1783592885175,"version":"3.55.0"},"reference-count":30,"publisher":"Bioscientifica","issue":"2","content-domain":{"domain":["journals.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2007,6,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Pheochromocytomas are catecholamine-producing tumors that can occur in the context of von Hippel\u2013Lindau syndrome (VHL) and multiple endocrine neoplasia type 2 (MEN2). Pheochromocytomas in these two syndromes differ in histopathological features, catecholamine metabolism, and clinical phenotype. To further investigate the nature of these differences, we compared the global protein expressions of 8 MEN2A-associated pheochromocytomas with 11 VHL-associated pheochromocytomas by two-dimensional gel electrophoresis proteomic profiling followed by sequencing and identification of differentially expressed proteins. Although both types of pheochromocytoma shared similarities in their protein expression patterns, the expression of several proteins was distinctly different between VHL- and MEN2A-associated pheochromocytomas. We identified several of these differentially expressed proteins. One of the proteins with higher expression in MEN2-associated tumors was chromogranin B, of which the differential expression was confirmed by western blot analysis. Our results expand the evidence for proteomic differences between these two tumor entities, and suggest that VHL-associated pheochromocytomas may be deficient in fundamental machinery for catecholamine storage. In light of these new findings, as well as existing evidence for differences between both types of pheochromocytomas, we propose that these tumors may have different developmental origins.<\/jats:p>","DOI":"10.1677\/erc-06-0038","type":"journal-article","created":{"date-parts":[[2007,7,17]],"date-time":"2007-07-17T11:22:00Z","timestamp":1184671320000},"page":"463-471","update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-8","source":"Crossref","is-referenced-by-count":12,"title":["Proteomic profiling of von Hippel\u2013Lindau syndrome and multiple endocrine neoplasia type 2 pheochromocytomas reveals different expression of chromogranin B"],"prefix":"10.1530","volume":"14","author":[{"given":"Frederieke M","family":"Brouwers","sequence":"first","affiliation":[{"name":"Reproductive Biology and Medicine Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sven","family":"Gla\u0308sker","sequence":"additional","affiliation":[{"name":"1Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, Room 5D37, Bethesda, Maryland 20892, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amanda F","family":"Nave","sequence":"additional","affiliation":[{"name":"Reproductive Biology and Medicine Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander O","family":"Vortmeyer","sequence":"additional","affiliation":[{"name":"1Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, Room 5D37, Bethesda, Maryland 20892, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irina","family":"Lubensky","sequence":"additional","affiliation":[{"name":"1Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, Room 5D37, Bethesda, Maryland 20892, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven","family":"Huang","sequence":"additional","affiliation":[{"name":"1Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, Room 5D37, Bethesda, Maryland 20892, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mones S","family":"Abu-Asab","sequence":"additional","affiliation":[{"name":"2Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Graeme","family":"Eisenhofer","sequence":"additional","affiliation":[{"name":"3Clinical Neurocardiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert J","family":"Weil","sequence":"additional","affiliation":[{"name":"1Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, Room 5D37, Bethesda, Maryland 20892, USA"},{"name":"4Brain Tumor Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deric M","family":"Park","sequence":"additional","affiliation":[{"name":"1Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, Room 5D37, Bethesda, Maryland 20892, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"W Marston","family":"Linehan","sequence":"additional","affiliation":[{"name":"5Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karel","family":"Pacak","sequence":"additional","affiliation":[{"name":"Reproductive Biology and Medicine Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhengping","family":"Zhuang","sequence":"additional","affiliation":[{"name":"1Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, Room 5D37, Bethesda, Maryland 20892, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"416","reference":[{"key":"2026070906030155100_APRILL-ETAL-1994","doi-asserted-by":"crossref","unstructured":"Aprill\n            BS\n          , Drake AJ III, Lasseter DH & Shakir KM \n1994 Silent adrenal nodules in von Hippel\u2013Lindau disease suggest pheochromocytoma. \nAnnals of Internal Medicine120485\u2013487.","DOI":"10.7326\/0003-4819-120-6-199403150-00006"},{"key":"2026070906030155100_BRYANT-ETAL-2003","doi-asserted-by":"crossref","unstructured":"Bryant\n            J\n          , Farmer J, Kessler LJ, Townsend RR & Nathanson KL \n2003 Pheochromocytoma: the expanding genetic differential diagnosis. \nJournal of the National Cancer Institute951196\u20131204.","DOI":"10.1093\/jnci\/djg024"},{"key":"2026070906030155100_EISENHOFER-ETAL-1986","doi-asserted-by":"crossref","unstructured":"Eisenhofer\n            G\n          , Goldstein DS, Stull R, Keiser HR, Sunderland T, Murphy DL & Kopin IJ \n1986 Simultaneous 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