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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2000-11-30
pubmed:abstractText
Chromosome instability is known to be associated with certain autosomal recessive cancer-prone disorders such as Fanconi's anemia. Multiple endocrine neoplasia type 1 (MEN 1) is an autosomal dominant disorder characterized by development of tumors in two or more endocrine organs, and chromosome instability in patients with MEN 1 has been described. The clinical features of MEN 1 are, however, distinct from other DNA instability syndromes except predisposition to tumors. Therefore, we reevaluated chromosome instability in patients with familial MEN 1. An increase in the frequency of chromosome aberrations was observed in MEN 1 patients but not in control subjects when peripheral mononuclear cells were exposed to an alkylating agent, diepoxybutane (DEB). DEB reduced survival of mononuclear cells in a dose-dependent manner in both MEN 1 patients and control subjects, but this effect was more prominent in MEN I patients. There was no apparent correlation between certain MEN1 gene mutations and sensitivity to DEB. From these results, we conclude that hypersensitivity to alkylating agents exists in patients with MEN 1. Molecular mechanisms of this phenomenon and relationship to tumorigenesis in endocrine organs should be elucidated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0753-3322
pubmed:author
pubmed:issnType
Print
pubmed:volume
54 Suppl 1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
187s-190s
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Enhanced sensitivity to alkylating agent in lymphocytes from patients with multiple endocrine neoplasia type 1.
pubmed:affiliation
Department of Aging Medicine and Geriatrics, Shinshu University School of Medicine, Matsumoto, Japan.
pubmed:publicationType
Journal Article, Clinical Trial