PMID- 32396602 OWN - NLM STAT- MEDLINE DCOM- 20210203 LR - 20210203 IS - 1945-7197 (Electronic) IS - 0021-972X (Linking) VI - 105 IP - 7 DP - 2020 Jul 1 TI - Clues For Genetic Anticipation In Multiple Endocrine Neoplasia Type 1. LID - dgaa257 [pii] LID - 10.1210/clinem/dgaa257 [doi] AB - CONTEXT: Multiple endocrine neoplasia type 1 (MEN1) is a rare autosomal dominant hereditary disease caused by the loss of function of the MEN1 gene, a tumor-suppressor gene that encodes the protein menin. It is characterized by the occurrence of primary hyperparathyroidism (pHPT), duodenopancreatic neuroendocrine tumors (dpNET), pituitary tumors (PIT), adrenal adenomas, and bronchopulmonary (bp-NET), thymic, and gastric neuroendocrine tumors. More insight into factors influencing the age-related penetrance of MEN1 manifestations could provide clues for more personalized screening programs. OBJECTIVE: To investigate whether genetic anticipation plays a role in the largest known MEN1 families in the Netherlands. METHODS: All Dutch MEN1 families with >/= 10 affected members in >/= 2 successive generations were identified. Age at detection of the different MEN1-related manifestations were compared among generations using regression analyses adjusted for competing risks. To correct for the beneficial effect of being under surveillance, manifestations occurring during surveillance were also separately compared. RESULTS: A total of 152 MEN1 patients from 10 families were included. A significantly decreased age at detection of pHPT, dpNET, PIT, and bp-NET was found in successive generations (P < 0.0001). Adjusted analyses led to the same results. CONCLUSIONS: These results suggest the presence of genetic anticipation. However, due to a risk of residual bias, the results must be interpreted with caution. After independent validation in other cohorts and further translational research investigating the molecular mechanisms explaining this phenomenon in MEN1, the results might add to future, more personalized, screening protocols and earlier screening for future generations of MEN1 patients. CI - (c) Endocrine Society 2020. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - van den Broek, Medard F M AU - van den Broek MFM AD - Department of Endocrine Oncology, University Medical Center Utrecht, Utrecht, The Netherlands. FAU - van Nesselrooij, Bernadette P M AU - van Nesselrooij BPM AD - Department of Medical Genetics, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands. FAU - Pieterman, Carolina R C AU - Pieterman CRC AD - Department of Endocrine Oncology, University Medical Center Utrecht, Utrecht, The Netherlands. FAU - Verrijn Stuart, Annemarie A AU - Verrijn Stuart AA AD - Department of Pediatric Endocrinology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands. FAU - van de Ven, Annenienke C AU - van de Ven AC AD - Department of Endocrinology, Radboud University Medical Center, Nijmegen, The Netherlands. FAU - de Herder, Wouter W AU - de Herder WW AD - Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands. FAU - Dekkers, Olaf M AU - Dekkers OM AD - Departments of Endocrinology and Metabolism and Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands. FAU - Drent, Madeleine L AU - Drent ML AD - Department of Internal Medicine, Section of Endocrinology, Amsterdam UMC, location VU University Medical Center, Amsterdam, The Netherlands. FAU - Havekes, Bas AU - Havekes B AD - Department of Internal Medicine, Division of Endocrinology, Maastricht University Medical Center, Maastricht, The Netherlands. FAU - Kerstens, Michiel N AU - Kerstens MN AD - Department of Endocrinology, University Medical Center Groningen, Groningen, The Netherlands. FAU - Bisschop, Peter H AU - Bisschop PH AD - Department of Endocrinology and Metabolism, Amsterdam UMC, location Academic Medical Center, Amsterdam, The Netherlands. FAU - Valk, Gerlof D AU - Valk GD AD - Department of Endocrine Oncology, University Medical Center Utrecht, Utrecht, The Netherlands. LA - eng PT - Journal Article PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (MEN1 protein, human) RN - 0 (Proto-Oncogene Proteins) SB - IM MH - Adult MH - Age Factors MH - Aged MH - Aged, 80 and over MH - *Anticipation, Genetic MH - Female MH - Humans MH - Male MH - Middle Aged MH - Multiple Endocrine Neoplasia Type 1/*genetics MH - Mutation MH - Netherlands MH - Proto-Oncogene Proteins/genetics MH - Young Adult OTO - NOTNLM OT - age of onset OT - genetic anticipation OT - multiple endocrine neoplasia type 1 OT - surveillance EDAT- 2020/05/13 06:00 MHDA- 2021/02/04 06:00 CRDT- 2020/05/13 06:00 PHST- 2020/02/24 00:00 [received] PHST- 2020/05/08 00:00 [accepted] PHST- 2020/05/13 06:00 [pubmed] PHST- 2021/02/04 06:00 [medline] PHST- 2020/05/13 06:00 [entrez] AID - 5836321 [pii] AID - 10.1210/clinem/dgaa257 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 2020 Jul 1;105(7):dgaa257. doi: 10.1210/clinem/dgaa257.