PMID- 8989266 OWN - NLM STAT- MEDLINE DCOM- 19970130 LR - 20061115 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 82 IP - 1 DP - 1997 Jan TI - Inactivation of the tumor suppressor gene on 11q13 in brothers with familial acrogigantism without multiple endocrine neoplasia type 1. PG - 239-42 AB - Two of three brothers (the second and third brothers) and their uncle (their mother's brother) presented acrogigantism without multiple endocrine neoplasia type 1 (MEN 1). An invasive macroadenoma was found in the second brother, and it was histologically confirmed as a sparsely granulated GH cell adenoma. Two distinct microadenomas were found in the third brother, and these were histologically diagnosed as a mixed GH cell and PRL cell adenoma and a sparsely granulated GH cell adenoma, respectively. The loss of heterozygosity (LOH) was analyzed in two adenomas (GH cell adenoma from the second brother and a mixed GH cell and PRL cell adenoma from the third brother) by determining microsatellite polymorphisms of DNAs from tumors and patients' leukocytes. The LOH was found on the chromosome 11q13, whereas LOH was not detected on 1p31-36, 2p, 3p, 4, 5, 6p, 7, 8, 9p21-22, 12p, and 19q13 in both pituitary adenomas examined. The haplotype analysis showed that the same haplotype on 11q13 was found in their mother and the unaffected first brother as well as in the affected uncle and two brothers. The deleted alleles on chromosome 11q13 in the tumors of two affected brothers were, however, restricted to those transmitted from their unaffected father. These data suggest that inactivation of the MEN 1 gene or other tumor suppressor genes on chromosome 11q13 plays an important role for the development of our familial acrogigantism without MEN 1. FAU - Yamada, S AU - Yamada S AD - Department of Neurosurgery, Toranomon Hospital, Tokyo, Japan. FAU - Yoshimoto, K AU - Yoshimoto K FAU - Sano, T AU - Sano T FAU - Takada, K AU - Takada K FAU - Itakura, M AU - Itakura M FAU - Usui, M AU - Usui M FAU - Teramoto, A AU - Teramoto A LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 12629-01-5 (Human Growth Hormone) RN - 9007-49-2 (DNA) SB - IM MH - Adenoma/genetics MH - Adult MH - *Chromosomes, Human, Pair 11 MH - DNA/analysis MH - Genes, Tumor Suppressor/*genetics MH - Gigantism/*genetics MH - Haplotypes MH - Heterozygote MH - Human Growth Hormone/metabolism MH - Humans MH - Male MH - Microsatellite Repeats MH - *Multiple Endocrine Neoplasia Type 1 MH - Pituitary Neoplasms/genetics EDAT- 1997/01/01 00:00 MHDA- 1997/01/01 00:01 CRDT- 1997/01/01 00:00 PHST- 1997/01/01 00:00 [pubmed] PHST- 1997/01/01 00:01 [medline] PHST- 1997/01/01 00:00 [entrez] AID - 10.1210/jcem.82.1.3697 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 1997 Jan;82(1):239-42. doi: 10.1210/jcem.82.1.3697.