PMID- 9540988 OWN - NLM STAT- MEDLINE DCOM- 19980504 LR - 20041117 IS - 0022-202X (Print) IS - 0022-202X (Linking) VI - 110 IP - 4 DP - 1998 Apr TI - Cutaneous tumors in patients with multiple endocrine neoplasia type 1 show allelic deletion of the MEN1 gene. PG - 438-40 AB - Multiple endocrine neoplasia type 1 (MEN1), the heritable tendency to develop tumors of the parathyroid, pituitary, and entero-pancreatic endocrine tissues, is the consequence of a germline mutation in the MEN1 gene. Endocrine tumors in these patients result when the mutant MEN1 allele is accompanied by loss of the normal MEN1 allele. Recently it was reported that MEN1 patients also exhibit several cutaneous tumors, including multiple angiofibromas, collagenomas, and lipomas. The purpose of this study was to examine skin lesions from patients with MEN1 for allelic loss of the MEN1 gene. Skin lesions from five patients with MEN1 were examined using fluorescence in situ hybridization. Six angiofibromas, three collagenomas, and one lipoma showed allelic deletion of the MEN1 gene. Allelic deletion was not observed in a melanocytic nevus or acrochordon from patients with MEN1. It was also not observed in an angiofibroma from a patient with tuberous sclerosis. These results suggest that loss of function of the wild-type MEN1 gene product plays a role in the development of angiofibromas, collagenomas, and lipomas in patients with MEN1. FAU - Pack, S AU - Pack S AD - Dermatology Branch and Laboratory of Pathology, National Cancer Institute, Bethesda, Maryland 20892-1908, USA. FAU - Turner, M L AU - Turner ML FAU - Zhuang, Z AU - Zhuang Z FAU - Vortmeyer, A O AU - Vortmeyer AO FAU - Boni, R AU - Boni R FAU - Skarulis, M AU - Skarulis M FAU - Marx, S J AU - Marx SJ FAU - Darling, T N AU - Darling TN LA - eng PT - Journal Article PL - United States TA - J Invest Dermatol JT - The Journal of investigative dermatology JID - 0426720 SB - IM MH - Adolescent MH - Adult MH - Aged MH - *Alleles MH - Angiofibroma/*genetics MH - Collagen Diseases/*genetics MH - Female MH - *Gene Deletion MH - Humans MH - Hyperparathyroidism/complications MH - Male MH - Middle Aged MH - Multiple Endocrine Neoplasia Type 1/*genetics MH - Nevus, Pigmented/complications/genetics MH - Skin Neoplasms/*genetics EDAT- 1998/04/16 00:00 MHDA- 1998/04/16 00:01 CRDT- 1998/04/16 00:00 PHST- 1998/04/16 00:00 [pubmed] PHST- 1998/04/16 00:01 [medline] PHST- 1998/04/16 00:00 [entrez] AID - S0022-202X(15)40058-2 [pii] AID - 10.1046/j.1523-1747.1998.00140.x [doi] PST - ppublish SO - J Invest Dermatol. 1998 Apr;110(4):438-40. doi: 10.1046/j.1523-1747.1998.00140.x.