RGD Reference Report - Microsatellite instability and loss of heterozygosity at the MEN1 locus in lung carcinoid tumors: a novel approach using real-time PCR with melting curve analysis in histopathologic material. - Rat Genome Database

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Microsatellite instability and loss of heterozygosity at the MEN1 locus in lung carcinoid tumors: a novel approach using real-time PCR with melting curve analysis in histopathologic material.

Authors: Vageli, D  Daniil, Z  Dahabreh, J  Karagianni, E  Liloglou, T  Koukoulis, G  Gourgoulianis, K 
Citation: Vageli D, etal., Oncol Rep. 2006 Mar;15(3):557-64.
RGD ID: 2317351
Pubmed: PMID:16465412   (View Abstract at PubMed)

The possible causes and genetic mechanisms of pulmonary carcinoid tumor development are unclear. In this study, we examined genetic alterations at the MEN1 locus in archival material from 15 pulmonary carcinoids. We employed, for the first time in this setting, real-time PCR with melting curve analysis in order to identify loss of heterozygosity (LOH) or microsatellite instability (MI) in two polymorphic markers (PYGM, D11S449) at the MEN1 locus and one additional marker (D11S906) of a putative oncosuppressive region distal to the MEN1 gene. Sequencing data were available in a selected subset of tumors in order to verify the reliability of real-time PCR analysis. We observed LOH at PYGM in 38% of the cases and MI in 13.3% of the cases. Our data indicate that real-time PCR with melting curve analysis is a reliable technique for LOH and MI detection and indicate that genetic errors at the MEN1 locus but also distal to it may be involved in the development of sporadic pulmonary carcinoid tumors.



RGD Manual Disease Annotations    Click to see Annotation Detail View
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
MEN1HumanCarcinoid Tumor  IAGP DNA:loss of heterozygosity:lung:PYGM more ...RGD 
Men1RatCarcinoid Tumor  ISOMEN1 (Homo sapiens)DNA:loss of heterozygosity:lung:PYGM more ...RGD 
Men1MouseCarcinoid Tumor  ISOMEN1 (Homo sapiens)DNA:loss of heterozygosity:lung:PYGM more ...RGD 

Objects Annotated

Genes (Rattus norvegicus)
Men1  (menin 1)

Genes (Mus musculus)
Men1  (multiple endocrine neoplasia 1)

Genes (Homo sapiens)
MEN1  (menin 1)


Additional Information