PMID- 12402974 OWN - NLM STAT- MEDLINE DCOM- 20030403 LR - 20190906 IS - 0918-8959 (Print) IS - 0918-8959 (Linking) VI - 49 IP - 4 DP - 2002 Aug TI - A kindred of familial acromegaly without evidence for linkage to MEN-1 locus. PG - 425-31 AB - Familial acromegaly (FA) is a rare inherited disease characterized by clustering of somatotrophic adenomas and acromegaly within a family without other manifestations of multiple endocrine neoplasia-type 1 (MEN-1). The genetic basis of this pituitary-specific phenotype is largely unknown, and its relationship to the MEN-1 locus on chromosome 11q13 also remains unclear. To test the hypothesis that FA results from a germline mutation of the MEN-1 locus, we performed a linkage analysis in a Japanese family with 2 members showing manifestations of acromegaly due to somatotroph adenomas. We also examined the adenoma of one patient for loss of heterozygosity (LOH) at 11q13 locus and for the presence of mutations of codon 201 and 227 in the gene for Gsalpha. Our results provided no evidence that either germline alterations of the MEN-1 locus, LOH at 11q13, or somatic mutation of Gsalpha plays a causative role in the development of somatotroph adenomas in our FA family. Together with the previous reports, these results suggest that there are at least two distinct subgroups of FA: one that results from a mutation in MEN-1 locus and the other whose causative gene is located outside the 11q13 locus. FAU - Tamura, Yoshiaki AU - Tamura Y AD - Department of Metabolic Diseases, Faculty of Medicine, University of Tokyo, Japan. FAU - Ishibashi, Shun AU - Ishibashi S FAU - Gotoda, Takanari AU - Gotoda T FAU - Yasufuku-Takano, Junko AU - Yasufuku-Takano J FAU - Takano, Koji AU - Takano K FAU - Ueki, Keisuke AU - Ueki K FAU - Yamashita, Shigeo AU - Yamashita S FAU - Iizuka, Yoko AU - Iizuka Y FAU - Yahagi, Naoya AU - Yahagi N FAU - Shionoiri, Futoshi AU - Shionoiri F FAU - Okazaki, Hiroaki AU - Okazaki H FAU - Ohashi, Ken AU - Ohashi K FAU - Osuga, Jun-ichi AU - Osuga J FAU - Harada, Kenji AU - Harada K FAU - Shimano, Hitoshi AU - Shimano H FAU - Fujita, Toshiro AU - Fujita T FAU - Yamada, Nobuhiro AU - Yamada N FAU - Kimura, Satoshi AU - Kimura S LA - eng PT - Case Reports PT - Journal Article PT - Review PL - Japan TA - Endocr J JT - Endocrine journal JID - 9313485 RN - EC 3.6.5.1 (GTP-Binding Protein alpha Subunits, Gs) SB - IM MH - Acromegaly/*genetics MH - Adult MH - *Chromosome Mapping MH - GTP-Binding Protein alpha Subunits, Gs/genetics MH - *Genetic Linkage MH - Humans MH - Loss of Heterozygosity MH - Male MH - Multiple Endocrine Neoplasia Type 1/*genetics MH - Pedigree MH - Point Mutation RF - 33 EDAT- 2002/10/31 04:00 MHDA- 2003/04/04 05:00 CRDT- 2002/10/31 04:00 PHST- 2002/10/31 04:00 [pubmed] PHST- 2003/04/04 05:00 [medline] PHST- 2002/10/31 04:00 [entrez] AID - 10.1507/endocrj.49.425 [doi] PST - ppublish SO - Endocr J. 2002 Aug;49(4):425-31. doi: 10.1507/endocrj.49.425.