PMID- 12089860 OWN - NLM STAT- MEDLINE DCOM- 20021001 LR - 20091119 IS - 0043-5325 (Print) IS - 0043-5325 (Linking) VI - 114 IP - 7 DP - 2002 Apr 15 TI - Multiple endocrine neoplasia type 1 (MEN1) in Austria. PG - 252-7 AB - Multiple endocrine neoplasia type 1 (MEN1) is a rare cancer predisposition syndrome. It results from the autosomal dominant inheritance of inactivating germ-line mutations of the MEN1 tumor suppressor gene. Mutation carriers are prone to develop tumors, preferentially, of the parathyroid and anterior pituitary glands as well as the enteropancreatic endocrine tissues. Because such tumors also occur without the MEN1 context, we have set up a molecular genetic screening program in Austria to discriminate between heritable and non-heritable tumor forms. Following the recognition of a MEN1-specific germ-line mutation in a tumor patient, we extend the screening to all first-degree relatives. To date, we have studied 42 individuals by sequencing the coding exons 2 to 10 of the MEN1 gene. A germ-line mutation was discovered in four of seven families suspected, clinically, to have MEN1, and in 3 of 22 (13.6%) patients with a presumed sporadic endocrine tumor. The respective mutations were also detected in three first-degree relatives of whom only one 6-year-old boy was asymptomatic at the time of investigation. The possibility to clearly discriminate between genetically predisposed and non-predisposed individuals has a significant impact on the diagnosis and clinical management of both patients and their relatives. Both symptomatic and asymptomatic mutation carriers can be closely monitored, thereby allowing early recognition and treatment of developing tumors. Non-affected relatives, on the other hand, do not require further controls. Finally, this approach also provides the information necessary for reliable genetic counseling. FAU - Weinhausel, Andreas AU - Weinhausel A AD - Children's Cancer Research Institute, St Anna Children's Hospital, Vienna, Austria. FAU - Kaserer, Klaus AU - Kaserer K FAU - Vierhapper, Heinrich AU - Vierhapper H FAU - Niederle, Bruno AU - Niederle B FAU - Haas, Oskar A AU - Haas OA CN - Study Group of Multiple Endocrine Neoplasia Austria LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Austria TA - Wien Klin Wochenschr JT - Wiener klinische Wochenschrift JID - 21620870R RN - 0 (MEN1 protein, human) RN - 0 (Neoplasm Proteins) RN - 0 (Proto-Oncogene Proteins) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Austria MH - Child MH - DNA Mutational Analysis MH - Female MH - Genetic Predisposition to Disease MH - *Genetic Testing MH - Germ-Line Mutation MH - Humans MH - Male MH - Middle Aged MH - Multiple Endocrine Neoplasia Type 1/diagnosis/*genetics MH - Neoplasm Proteins/genetics MH - *Penetrance MH - Polymerase Chain Reaction MH - *Proto-Oncogene Proteins MH - Risk EDAT- 2002/07/02 10:00 MHDA- 2002/10/03 04:00 CRDT- 2002/07/02 10:00 PHST- 2002/07/02 10:00 [pubmed] PHST- 2002/10/03 04:00 [medline] PHST- 2002/07/02 10:00 [entrez] PST - ppublish SO - Wien Klin Wochenschr. 2002 Apr 15;114(7):252-7.