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Kazzaz SA, Tawil J, Harhaj EW. The aryl hydrocarbon receptor-interacting protein in cancer and immunity: Beyond a chaperone protein for the dioxin receptor. J Biol Chem 2024; 300:107157. [PMID: 38479600 PMCID: PMC11002312 DOI: 10.1016/j.jbc.2024.107157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 04/04/2024] Open
Abstract
The aryl hydrocarbon receptor (AhR)-interacting protein (AIP) is a ubiquitously expressed, immunophilin-like protein best known for its role as a co-chaperone in the AhR-AIP-Hsp90 cytoplasmic complex. In addition to regulating AhR and the xenobiotic response, AIP has been linked to various aspects of cancer and immunity that will be the focus of this review article. Loss-of-function AIP mutations are associated with pituitary adenomas, suggesting that AIP acts as a tumor suppressor in the pituitary gland. However, the tumor suppressor mechanisms of AIP remain unclear, and AIP can exert oncogenic functions in other tissues. While global deletion of AIP in mice yields embryonically lethal cardiac malformations, heterozygote, and tissue-specific conditional AIP knockout mice have revealed various physiological roles of AIP. Emerging studies have established the regulatory roles of AIP in both innate and adaptive immunity. AIP interacts with and inhibits the nuclear translocation of the transcription factor IRF7 to inhibit type I interferon production. AIP also interacts with the CARMA1-BCL10-MALT1 complex in T cells to enhance IKK/NF-κB signaling and T cell activation. Taken together, AIP has diverse functions that vary considerably depending on the client protein, the tissue, and the species.
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Affiliation(s)
- Sarah A Kazzaz
- Department of Microbiology and Immunology, Penn State College of Medicine, Hershey, Pennsylvania, USA; Medical Scientist Training Program, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - John Tawil
- Department of Microbiology and Immunology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Edward W Harhaj
- Department of Microbiology and Immunology, Penn State College of Medicine, Hershey, Pennsylvania, USA.
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2
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Stratakis CA. An update on, and genetics of refractory adenomas of childhood. Pituitary 2023:10.1007/s11102-023-01327-2. [PMID: 37318708 DOI: 10.1007/s11102-023-01327-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/16/2023] [Indexed: 06/16/2023]
Abstract
Pituitary adenomas in childhood tend to be more frequently due to germline genetic changes and are often diagnosed at late stages due to delayed recognition by pediatricians and other caretakers who are not familiar with this rare disease in childhood. As a result, often, pediatric pituitary adenomas are aggressive or remain refractory to treatment. In this review, we discuss germline genetic defects that account for the most common pediatric pituitary adenomas that are refractory to treatment. We also discuss some somatic genetic events, such as chromosomal copy number changes that characterize some of the most aggressive pituitary adenomas in childhood that end up being refractory to treatment.
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Affiliation(s)
- Constantine A Stratakis
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, 20892, Bethesda, MD, USA.
- Human Genetics & Precision Medicine, IMMB, FORTH, Heraklion, Greece.
- ELPEN Research Institute, Athens, Greece.
- Medical Genetics, H. Dunant Hospital, Athens, Greece.
- Faculty of Medicine, European University of Cyprus, Nicosia, Cyprus.
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3
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Abstract
Aggressive pituitary tumors (APTs) represent rare pituitary adenomas (PAs) with local invasion of surrounding tissues, increased risk for multiple recurrence, rapid tumor growth, or resistance to standard therapies. The most common APTs in children and adolescents are giant prolactinomas and somatotropinomas. Few cases of Crooke's cell adenomas, silent corticotroph adenomas and pituitary carcinomas have also been reported in the literature. Pediatric patients with APTs have higher risk of harboring germline genetic defects, most commonly in the MEN1 and AIP genes. Since certain genetic defects confer a more aggressive behavior to PAs, genetic testing should be considered in tumors with young onset and positive family history. The management of pediatric APTs involves usually a combination of standard therapies (surgical, medical, radiation). Newer agents, such as temozolomide, have been used in few cases of pediatric pituitary tumors with promising results. In the elderly, PAs are more commonly non-functioning. Their management often poses dilemmas given the coexistence of age-related comorbidities. However, standard surgical treatment and temozolomide seem to be safe and well tolerated in elderly patients.
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Affiliation(s)
- Christina Tatsi
- Section on Genetics and Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, 10 Center Drive, Building 10, NIH-Clinical Research Center, Room 1-3330, MSC1103, Bethesda, MD, 20892, USA
| | - Constantine A Stratakis
- Section on Genetics and Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, 10 Center Drive, Building 10, NIH-Clinical Research Center, Room 1-3330, MSC1103, Bethesda, MD, 20892, USA.
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4
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The Genetics of Pituitary Adenomas. J Clin Med 2019; 9:jcm9010030. [PMID: 31877737 PMCID: PMC7019860 DOI: 10.3390/jcm9010030] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/12/2019] [Accepted: 12/15/2019] [Indexed: 12/16/2022] Open
Abstract
The genetic landscape of pituitary adenomas (PAs) is diverse and many of the identified cases remain of unclear pathogenetic mechanism. Germline genetic defects account for a small percentage of all patients and may present in the context of relevant family history. Defects in AIP (mutated in Familial Isolated Pituitary Adenoma syndrome or FIPA), MEN1 (coding for menin, mutated in Multiple Endocrine Neoplasia type 1 or MEN 1), PRKAR1A (mutated in Carney complex), GPR101 (involved in X-Linked Acrogigantism or X-LAG), and SDHx (mutated in the so called "3 P association" of PAs with pheochromocytomas and paragangliomas or 3PAs) account for the most common familial syndromes associated with PAs. Tumor genetic defects in USP8, GNAS, USP48 and BRAF are some of the commonly encountered tissue-specific changes and may explain a larger percentage of the developed tumors. Somatic (at the tumor level) genomic changes, copy number variations (CNVs), epigenetic modifications, and differential expression of miRNAs, add to the variable genetic background of PAs.
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Abstract
BACKGROUND Acromegaly is a rare and underdiagnosed disorder caused, in more than 95% of cases, by a growth hormone (GH)-secreting pituitary adenoma. The GH hypersecretion leads to overproduction of insulin-like growth factor 1 (IGF-1) which results in a multisystem disease characterized by somatic overgrowth, multiple comorbidities, physical disfigurement, and increased mortality. OBJECTIVE This article aims to review the clinical features of acromegaly at diagnosis. DISCUSSION/CONCLUSION Acromegaly affects both males and females equally and the average age at diagnosis ranges from 40 to 50 years (up to 5% of cases < the age 20). Due to insidious onset and slow progression, acromegaly is often diagnosed five to more than ten years after its onset. The typical coarsening of facial features include furrowing of fronthead, pronounced brow protrusion, enlargement of the nose and the ears, thickening of the lips, skin wrinkles and nasolabial folds, as well as mandibular prognathism that leads to dental malocclusion and increased interdental spacing. Excessive growth of hands and feet (predominantly due to soft tissue swelling) is present in the vast majority of acromegalic patients. Gigantism accounts for up to 5% of cases and occurs when the excess of GH becomes manifest in the young, before the epiphyseal fusion. The disease also has rheumatologic, cardiovascular, respiratory, neoplastic, neurological, and metabolic manifestations which negatively impact its prognosis and patients quality of life. Less than 15% of acromegalic patients actively seek medical attention for change in appearance or enlargement of the extremities. The presentation of acromegaly is more often related to its systemic comorbidities or to local tumor effects.
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Affiliation(s)
- Lucio Vilar
- Division of Endocrinology, Hospital das Clínicas, Federal University of Pernambuco, Rua Heitor Maia Filho, 100/502, Madalena, Recife, CEP 50.720-525, Brazil.
| | | | - Ruy Lyra
- Division of Endocrinology, Hospital das Clínicas, Federal University of Pernambuco, Rua Heitor Maia Filho, 100/502, Madalena, Recife, CEP 50.720-525, Brazil
| | - Raissa Lyra
- Endocrine Research Center of Pernambuco, Recife, Brazil
| | - Luciana A Naves
- Division of Endocrinology, Brasilia University Hospital, Brasilia, Brazil
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6
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Vroonen L, Lancellotti P, Garcia MT, Dulgheru R, Rubio-Almanza M, Maiga I, Magne J, Petrossians P, Auriemma R, Daly AF, Beckers A. Prospective, long-term study of the effect of cabergoline on valvular status in patients with prolactinoma and idiopathic hyperprolactinemia. Endocrine 2017; 55:239-245. [PMID: 27709470 DOI: 10.1007/s12020-016-1120-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 09/07/2016] [Indexed: 10/20/2022]
Abstract
Since the 1990's cabergoline has been the treatment of choice in prolactinoma, as it permits rapid and effective hormonal and tumor control in most cases. Evidence of cardiac valvulopathy was demonstrated in Parkinson's disease patients treated with dopamine agonists. Retrospective studies in prolactinoma patients treated with cabergoline at lower doses did not show such an effect. However, few prospective data with long-term follow-up are available. The aim of this study was to assess the safety of cabergoline regarding cardiac valvular status during prospective follow-up in patients treated for prolactinoma or idiopathic hyperprolactinemia. We report here a series of 100 patients (71F; median age at diagnosis: 41.5 years) treated with cabergoline for endocrine diseases (prolactinoma n = 89, idiopathic hyperprolactinemia n = 11). All patients underwent complete transthoracic echocardiographic studies at baseline and during long-term prospective surveillance using the same equipment and performed by the same technicians. The median interval between baseline and last follow-up echocardiographic studies while on cabergoline was 62.5 months (interquartile range: 34.75-77.0). The median total duration of cabergoline treatment was 124.5 months (interquartile range: 80.75-188.75) and the median cumulative total dose of cabergoline was 277.8 mg (interquartile range : 121.4-437.8 mg) at last follow-up. We found no clinically relevant alterations in cardiac valve function or valvular calcifications with cabergoline treatment. Our data suggest that findings from retrospective analyses are correct and that cabergoline is a safe chronic treatment at the doses used typically in endocrinology.
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Affiliation(s)
- Laurent Vroonen
- Department of Endocrinology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Patrizio Lancellotti
- Department of Cardiology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Monica Tomé Garcia
- Department of Endocrinology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Raluca Dulgheru
- Department of Cardiology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Matilde Rubio-Almanza
- Department of Endocrinology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Ibrahima Maiga
- Department of Endocrinology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Julien Magne
- Department of Cardiology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Patrick Petrossians
- Department of Endocrinology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Renata Auriemma
- Department of Endocrinology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Adrian F Daly
- Department of Endocrinology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium
| | - Albert Beckers
- Department of Endocrinology, Center Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, 4000, Belgium.
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7
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Hu Y, Yang J, Chang Y, Ma S, Qi J. SNPs in the aryl hydrocarbon receptor-interacting protein gene associated with sporadic non-functioning pituitary adenoma. Exp Ther Med 2016; 11:1142-1146. [PMID: 26998050 DOI: 10.3892/etm.2016.3002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 12/08/2015] [Indexed: 01/03/2023] Open
Abstract
Mutations in the aryl hydrocarbon receptor-interacting protein (AIP) gene have previously been associated with a predisposition to pituitary adenomas. However, to the best of our knowledge, mutations in AIP that relate specifically to sporadic non-functioning pituitary adenomas (NFPAs) have yet to be reported. Therefore, the present study aimed to identify single nucleotide polymorphisms (SNPs) in the AIP gene that may be associated with NFPAs. Peripheral blood samples and the entire coding sequence of the AIP gene from 56 patients with NFPAs and 56 controls were analyzed in triplicate. Of the 56 patients with NFPAs, 9 patients (16.1%) were identified as harboring five different SNPs, although no germline mutations in the AIP gene were detected in any of the patients. Three different SNPs (7051C>T, 8012G>C and 8020G>C) were identified in exons 4 and 6 in 3 different patients (each in 1 patient). Two different SNPs (7318C>A and 7886A>G) were identified in exons 5 and 6, respectively, in 6 different patients (each in 3 patients). No SNPs or germline mutations in the AIP gene were identified in the controls. The results of the present study suggested that mutations in the AIP gene might not have an important role in the tumorigenesis of NFPAs. However, further studies are required in order to investigate potential molecular and genetic mechanisms that may underlie the involvement of AIP in NFPA.
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Affiliation(s)
- Yeshuai Hu
- Department of Neurosurgery, Fuxing Hospital Affiliated to Capital Medical University, Beijing 100038, P.R. China
| | - Jun Yang
- Department of Neurosurgery, Fuxing Hospital Affiliated to Capital Medical University, Beijing 100038, P.R. China
| | - Yongkai Chang
- Department of Neurosurgery, Fuxing Hospital Affiliated to Capital Medical University, Beijing 100038, P.R. China
| | - Shunchang Ma
- Department of Neurosurgery, Fuxing Hospital Affiliated to Capital Medical University, Beijing 100038, P.R. China
| | - Jianfa Qi
- Department of Neurosurgery, Fuxing Hospital Affiliated to Capital Medical University, Beijing 100038, P.R. China
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8
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Zakir JCDO, Casulari LA, Rosa JWC, Rosa JWC, de Mello PA, de Magalhães AV, Naves LA. Prognostic Value of Invasion, Markers of Proliferation, and Classification of Giant Pituitary Tumors, in a Georeferred Cohort in Brazil of 50 Patients, with a Long-Term Postoperative Follow-Up. Int J Endocrinol 2016; 2016:7964523. [PMID: 27635138 PMCID: PMC5007336 DOI: 10.1155/2016/7964523] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 03/09/2016] [Accepted: 06/30/2016] [Indexed: 11/18/2022] Open
Abstract
Although some pituitary adenomas may have an aggressive behavior, the vast majority are benign. There are still controversies about predictive factors regarding the biological behavior of these particular tumors. This study evaluated potential markers of invasion and proliferation compared to current classification patterns and epidemiogeographical parameters. The study included 50 patients, operated on for tumors greater than 30 mm, with a mean postoperative follow-up of 15.2 ± 4.8 years. Pituitary magnetic resonance was used to evaluate regrowth, invasion, and extension to adjacent tissue. Three tissue biomarkers were analyzed: p53, Ki-67, and c-erbB2. Tumors were classified according to a combination of histological and radiological features, ranging from noninvasive and nonproliferative (grade 1A) to invasive-proliferative (grade 2B). Tumors grades 2A and 2B represented 42% and 52%, respectively. Ki-67 (p = 0.23) and c-erbB2 (p = 0.71) had no significant relation to tumor progression status. P53 (p = 0.003), parasellar invasion (p = 0.03), and classification, grade 2B (p = 0.01), were associated with worse clinical outcome. Parasellar invasion prevails as strong predictive factor of tumor recurrence. Severe suprasellar extension should be considered as invasion parameter and could impact prognosis. No environmental factors or geographical cluster were associated with tumor behavior.
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Affiliation(s)
| | - Luiz Augusto Casulari
- Department of Endocrinology, Faculty of Medicine, University of Brasilia, Brasilia, Brazil
| | | | | | - Paulo Andrade de Mello
- Department of Neurosurgery, Faculty of Medicine, University of Brasilia, Brasilia, Brazil
| | | | - Luciana Ansaneli Naves
- Department of Endocrinology, Faculty of Medicine, University of Brasilia, Brasilia, Brazil
- *Luciana Ansaneli Naves:
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Cuny T, Chanson P. [Aggressive and resistant-to-treatment pituitary tumors]. ANNALES D'ENDOCRINOLOGIE 2013; 74 Suppl 1:S3-12. [PMID: 24356289 DOI: 10.1016/s0003-4266(13)70016-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Pituitary adenomas define slow growing tumors developing from anterior pituitary. Most often benign, their treatment and subsequent management are based on transphenoidal surgery and/or medical therapy, generally without difficulties in clinical practice. However, 2 clinicopathological situations, more or less intricated, may considerably complicate the management of these tumors and the patient health condition. Firstly, when the tumor is characterized by an usual aggressive behaviour with a possible extension within the cavernous sinus and a high risk of recurence after well- conducted treatment. Otherwise, in some cases of resistant prolactinomas and somatotropinomas, the specific medical treatment may be unsuccessful for controlling the hormonal hypersecretion and/or the tumoral growth, with subsequent complex therapeutic approach. Progress that have been made in the understanding of aggressive as well as in resistant- to- treatment pituitary tumors, both in histopathology and molecular fields, may constitue new tools for improving knowledge on the profile of these atypical tumors and optimizing their management.
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Affiliation(s)
- T Cuny
- Service d'endocrinologie et gynécologie médicale, Faculté de médecine de Nancy, Université de Lorraine, Centre hospitalier universitaire de Nancy- Brabois, 54500 Vandoeuvre- les- Nancy, France.
| | - P Chanson
- Université Paris- Sud, Faculté de médecine Paris- Sud, UMR- S693, Le Kremlin-Bicêtre, F- 94276, France; Assistance publique- Hôpitaux de Paris, Hôpitaux universitaires Paris- Sud, Hôpital de Bicêtre, Service d'endocrinologie et des maladies de la reproduction, Le Kremlin-Bicêtre, F- 94275, France
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García-Arnés JA, González-Molero I, Oriola J, Mazuecos N, Luque R, Castaño J, Arraez MA. Familial isolated pituitary adenoma caused by a Aip gene mutation not described before in a family context. Endocr Pathol 2013; 24:234-8. [PMID: 24078436 DOI: 10.1007/s12022-013-9268-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The cause of familial isolated pituitary adenomas (FIPA) remains unknown in a high percentage of cases, but the AIP gene plays an important role in the etiology. The aim of the study is to describe a family with FIPA syndrome and the results of genomic studies. A 16-year-old man had a giant prolactinoma resistant tomedical treatment with delayed growth and pubertal development. His mother had been previously diagnosed with a nonfunctioning pituitary macroadenoma. Transsphenoidal endoscopic resection was performed and a genetic study revealed a heterozygous mutation in exon 6: 974G>A (p.Arg325Gln). Because the AIP gene is a tumor suppressor gene, we searched for loss of heterozygosity within the AIP gene by amplifying exon 6 from tumor tissue of the patient. In the electropherogram, only the A allele was amplified (hemizygous state), indicating loss of the normal allele. We report a Spanish family with FIPA in whom a mutation in the AIP gene previously unreported in a familiar context was identified.
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Beckers A, Aaltonen LA, Daly AF, Karhu A. Familial isolated pituitary adenomas (FIPA) and the pituitary adenoma predisposition due to mutations in the aryl hydrocarbon receptor interacting protein (AIP) gene. Endocr Rev 2013; 34:239-77. [PMID: 23371967 PMCID: PMC3610678 DOI: 10.1210/er.2012-1013] [Citation(s) in RCA: 194] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Pituitary adenomas are one of the most frequent intracranial tumors and occur with a prevalence of approximately 1:1000 in the developed world. Pituitary adenomas have a serious disease burden, and their management involves neurosurgery, biological therapies, and radiotherapy. Early diagnosis of pituitary tumors while they are smaller may help increase cure rates. Few genetic predictors of pituitary adenoma development exist. Recent years have seen two separate, complimentary advances in inherited pituitary tumor research. The clinical condition of familial isolated pituitary adenomas (FIPA) has been described, which encompasses the familial occurrence of isolated pituitary adenomas outside of the setting of syndromic conditions like multiple endocrine neoplasia type 1 and Carney complex. FIPA families comprise approximately 2% of pituitary adenomas and represent a clinical entity with homogeneous or heterogeneous pituitary adenoma types occurring within the same kindred. The aryl hydrocarbon receptor interacting protein (AIP) gene has been identified as causing a pituitary adenoma predisposition of variable penetrance that accounts for 20% of FIPA families. Germline AIP mutations have been shown to associate with the occurrence of large pituitary adenomas that occur at a young age, predominantly in children/adolescents and young adults. AIP mutations are usually associated with somatotropinomas, but prolactinomas, nonfunctioning pituitary adenomas, Cushing disease, and other infrequent clinical adenoma types can also occur. Gigantism is a particular feature of AIP mutations and occurs in more than one third of affected somatotropinoma patients. Study of pituitary adenoma patients with AIP mutations has demonstrated that these cases raise clinical challenges to successful treatment. Extensive research on the biology of AIP and new advances in mouse Aip knockout models demonstrate multiple pathways by which AIP may contribute to tumorigenesis. This review assesses the current clinical and therapeutic characteristics of more than 200 FIPA families and addresses research findings among AIP mutation-bearing patients in different populations with pituitary adenomas.
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Affiliation(s)
- Albert Beckers
- Department of Endocrinology, Centre Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, 4000 Liège, Belgium.
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12
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Miller BA, Rutledge WC, Ioachimescu AG, Oyesiku NM. Management of large aggressive nonfunctional pituitary tumors: experimental medical options when surgery and radiation fail. Neurosurg Clin N Am 2013; 23:587-94. [PMID: 23040745 DOI: 10.1016/j.nec.2012.06.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Pituitary adenomas are generally considered benign tumors; however, a subset of these tumors displays aggressive behavior and are not easily cured. The protocol for nonsurgical treatment of aggressive pituitary lesions is less standardized than that of other central nervous system tumors. Aggressive surgical treatment, radiation, dopamine agonists, antiangiogenic drugs, and other chemotherapeutics all have roles in the treatment of aggressive pituitary tumors. More studies are needed to improve outcomes for patients with aggressive pituitary tumors.
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Affiliation(s)
- Brandon A Miller
- Department of Neurosurgery, Emory University, Atlanta, GA 30322, USA.
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13
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Vroonen L, Jaffrain-Rea ML, Petrossians P, Tamagno G, Chanson P, Vilar L, Borson-Chazot F, Naves LA, Brue T, Gatta B, Delemer B, Ciccarelli E, Beck-Peccoz P, Caron P, Daly AF, Beckers A. Prolactinomas resistant to standard doses of cabergoline: a multicenter study of 92 patients. Eur J Endocrinol 2012; 167:651-62. [PMID: 22918301 DOI: 10.1530/eje-12-0236] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Dopamine agonist resistance in prolactinoma is an infrequent phenomenon. Doses of cabergoline (CAB) of up to 2.0 mg/week are usually effective in controlling prolactin (PRL) secretion and reducing tumor size in prolactinomas. The clinical presentation, management, and outcome of patients that are not well controlled by such commonly used doses of CAB-resistant patients are poorly understood. DESIGN AND METHODS A multicenter retrospective study was designed to collect a large series of resistant prolactinoma patients, defined by uncontrolled hyperprolactinemia on CAB ≥2.0 mg weekly. RESULTS Ninety-two patients (50 F, 42 M) were analyzed. At diagnosis, most had macroprolactinomas (82.6%); males were significantly older than females (P=0.0003) and presented with a more aggressive disease. A genetic basis was identified in 12 patients. Thirty-six patients (39.1%) received only medical therapy, most underwent surgery (60.9%, including multiple interventions in 10.9%), and 14.1% received postoperative radiotherapy. Eight patients developed late CAB resistance (8.7%). The median maximal weekly dose of CAB (CAB(max/w)) was 3.5 mg (2.0-10.5). Despite a higher CAB(max/w) in patients treated with multimodal therapy (P=0.003 vs exclusive pharmacological treatment), a debulking effect of surgery was shown in 14 patients, with a higher rate of PRL control (P=0.006) and a significant reduction in CAB(max/w) (P=0.001) postoperatively. At last follow-up (median 88 months), PRL normalization and tumor disappearance were achieved in 28 and 19.9% of the patients respectively, with no significant sex-related difference observed in CAB(max/w) or disease control. Mortality was 4.8%, with four patients developing aggressive tumors (4.3%) and three a pituitary carcinoma (3.3%). CONCLUSION CAB-resistant prolactinomas remain a serious concern. Surgical debulking, newer therapeutic strategies, and early diagnosis of genetic forms could help to improve their outcome.
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Affiliation(s)
- Laurent Vroonen
- Department of Endocrinology, Centre Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Belgium
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14
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Jaffrain-Rea ML, Daly AF, Angelini M, Petrossians P, Bours V, Beckers A. Genetic susceptibility in pituitary adenomas: from pathogenesis to clinical implications. Expert Rev Endocrinol Metab 2011; 6:195-214. [PMID: 30290451 DOI: 10.1586/eem.10.87] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Pituitary adenomas usually present sporadically, with a multifactorial pathogenesis including somatic mutational events in cancer-related genes. Genetic predisposition implies the presence of germline DNA alterations with a range of impacts on pituitary cell biology, translating into a variable penetrance of the disease. Genetic causes must be considered in the presence of specific clinical settings, such as familial occurrence of pituitary adenoma, with or without extrapituitary diseases, and may also be suspected in young patients (<30 years of age) with macroadenomas. We review the clinical implications of genetic predisposition, with special attention on multiple endocrine neoplasia type 1, Carney complex and familial isolated pituitary adenoma. Genetic screening in selected patients with an apparently sporadic disease is also discussed.
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Affiliation(s)
- Marie-Lise Jaffrain-Rea
- a University of L'Aquila, via Vetoio, Coppito 2, 67100 L'Aquila, Italy
- b Neuromed Institute, via Atinense, 86077 Pozzilli, Italy
- c Fondazione 'Carlo Ferri' per la prevenzione e la diagnosi precoce dei tumori, via Edmondo Riva, 00015 Monterotondo, Italy
| | - Adrian F Daly
- d University of Liège, CHU of Liège, Domaine du Sart-Tilman, 4000 Liège, Belgium
| | | | - Patrick Petrossians
- d University of Liège, CHU of Liège, Domaine du Sart-Tilman, 4000 Liège, Belgium
| | - Vincent Bours
- d University of Liège, CHU of Liège, Domaine du Sart-Tilman, 4000 Liège, Belgium
| | - Albert Beckers
- d University of Liège, CHU of Liège, Domaine du Sart-Tilman, 4000 Liège, Belgium
- e
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