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Clinical Characteristics and Therapeutic Responses in Patients with Germ-LineAIPMutations and Pituitary Adenomas: An International Collaborative Study

Year: 2010
Type: article
Study design: Observational Study
Abstract: CONTEXT: AIP mutations (AIPmut) give rise to a pituitary adenoma predisposition that occurs in familial isolated pituitary adenomas and less often in sporadic cases. The clinical and therapeutic features of AIPmut-associated pituitary adenomas have not been studied comprehensively. OBJECTIVE: The objective of the study was to assess clinical/therapeutic characteristics of AIPmut pituitary adenomas. DESIGN: This study was an international, multicenter, retrospective case collection/database analysis. SETTING: The study was conducted at 36 tertiary referral endocrine and clinical genetics departments. PATIENTS: Patients included 96 patients with germline AIPmut and pituitary adenomas and 232 matched AIPmut-negative acromegaly controls. RESULTS: The AIPmut population was predominantly young and male (63.5%); first symptoms occurred as children/adolescents in 50%. At diagnosis, most tumors were macroadenomas (93.3%); extension and invasion was common. Somatotropinomas comprised 78.1% of the cohort; there were also prolactinomas (n = 13), nonsecreting adenomas (n = 7), and a TSH-secreting adenoma. AIPmut somatotropinomas were larger (P = 0.00026), with higher GH levels (P = 0.00068), more frequent extension (P = 0.018) and prolactin cosecretion (P = 0.00023), and occurred 2 decades before controls (P < 0.000001). Gigantism was more common in the AIPmut group (P < 0.000001). AIPmut somatotropinoma patients underwent more surgical interventions (P = 0.00069) and had lower decreases in GH (P = 0.00037) and IGF-I (P = 0.028) and less tumor shrinkage with somatostatin analogs (P < 0.00001) vs. controls. AIPmut prolactinomas occurred generally in young males and frequently required surgery or radiotherapy. CONCLUSIONS: AIPmut pituitary adenomas have clinical features that may negatively impact treatment efficacy. Predisposition for aggressive disease in young patients, often in a familial setting, suggests that earlier diagnosis of AIPmut pituitary adenomas may have clinical utility.
Institutions: University of Liège, Centre Hospitalier Universitaire de Liège, University of Helsinki, University of L'Aquila, Istituto Neurologico Mediterraneo, Centre National de la Recherche Scientifique, Centre de Recherche en Neurobiologie - Neurophysiologie de Marseille, Universidade de Brasília, Oulu University Hospital, University of Oulu, Inserm, Hôpital Cochin, Assistance Publique – Hôpitaux de Paris, Institut Cochin, Hospital de La Ribera, Hospices Civils de Lyon, Cleveland Clinic, Helsinki University Hospital, UCLouvain, Erasmus MC, Medical University of Sofia, Centre Hospitalier Universitaire de Bordeaux, Hôpital Cardiologique du Haut-Lévêque, Centre Hospitalier Universitaire de Nantes, Centre hospitalier universitaire d'Orléans, Universidade de São Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Austral University, Hospital Universitario Austral, University of Pavia, Centre Hospitalier Sainte-Anne, Université Paris Descartes, Johns Hopkins University, Johns Hopkins Medicine, Royal Children's Hospital, Murdoch Children's Research Institute, Hospital Universitario Miguel Servet, Universidad de Buenos Aires, Leipzig University, Azienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda, Istituti Clinici Scientifici Maugeri, Fondazione Salvatore Maugeri, Hôtel-Dieu de France, Centre hospitalier régional de la Citadelle, Sabin Medicina Diagnostica (Brazil), Hôpital Européen Georges-Pompidou, Greenlane Clinical Centre, Max Planck Institute of Psychiatry, Hôpital de la Timone, Université Paris-Sud, Bicêtre Hospital
Language: English
Field: Medicine
Open Access status: bronze
OpenAlex ID: W2010375889
FWCI: 15.85
Cites: 50
Cited by: 384
Related to: 10