| The MENX syndrome and p27: relationships with multiple endocrine neoplasia. | |
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MedLine Citation:
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PMID: 20541671 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In the past 3 years new insight into the etiopathogenesis of hereditary endocrine tumors has emerged from studies conducted on MENX, a rat multiple endocrine neoplasia (MEN) syndrome. MENX spontaneously developed in a rat colony and was discovered by serendipity when these animals underwent complete necropsy, as they were found to consistently develop multiple endocrine tumors with a spectrum similar to both MEN type 1 (MEN1) and MEN2 human syndromes. Genetic studies identified a germline mutation in the Cdkn1b gene, encoding the p27 cell cycle inhibitor, as the causative mutation for the MENX syndrome. Capitalizing on these findings, we and others identified heterozygous germline mutations in the human homologue, CDKN1B, in patients with multiple endocrine tumors. As a consequence of these observations a novel human MEN syndrome, named MEN4, was recognized which is caused by mutations in p27. Altogether these studies identified Cdkn1b/CDKN1B as a novel tumor susceptibility gene for multiple endocrine tumors in both rats and humans. In this chapter we present the MENX syndrome and its phenotype, and we compare it to the human MEN syndromes; we discuss the current state of knowledge regarding the genes associated to inherited MEN, with a particular focus on CDKN1B; we present recent clinical and basic findings about the MEN4 syndrome and the functional characterization of the CDKN1B mutations identified. These findings are placed in the broader context of how p27 dysregulation might affect neuroendocrine cell function and trigger tumorigenesis. |
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Authors:
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Sara Molatore; Natalia S Pellegata |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Progress in brain research Volume: 182 ISSN: 1875-7855 ISO Abbreviation: Prog. Brain Res. Publication Date: 2010 |
Date Detail:
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Created Date: 2010-06-14 Completed Date: 2010-09-17 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0376441 Medline TA: Prog Brain Res Country: Netherlands |
Other Details:
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Languages: eng Pagination: 295-320 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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Institute of Pathology, Helmholtz Zentrum Munchen-German Research Center for Environmental Health, Neuherberg, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cyclin-Dependent Kinase Inhibitor p27 / genetics*, metabolism Female Genetic Predisposition to Disease* Humans Male Multiple Endocrine Neoplasia / classification, genetics*, metabolism* Mutation / genetics Pituitary Neoplasms / genetics* Proto-Oncogene Proteins / genetics, metabolism Rats |
| Chemical | |
Reg. No./Substance:
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0/MEN1 protein, human; 0/Proto-Oncogene Proteins; 147604-94-2/Cyclin-Dependent Kinase Inhibitor p27 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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