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Hickman RA, Gionco JT, Faust PL, Miller ML, Bruce J, Page-Wilson G, Rosenblum MK, Asa SL. Pituitary corticotroph tumour with adrenocortical cells: A distinct clinicopathologic entity with unique morphology and methylation profile. Neuropathol Appl Neurobiol 2022; 48:e12754. [PMID: 34296770 PMCID: PMC9344380 DOI: 10.1111/nan.12754] [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: 06/20/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 11/27/2022]
Abstract
We describe a rare TPIT-positive corticotroph PitNET that is admixed with SF1-positive adrenocortical cells. This dimorphous population of cells showed no colocalisation between TPIT and SF1 by immunofluorescence, and an adrenocortical choristoma was favoured. Methylation array analysis revealed a novel methylation profile in relation to other pituitary neoplasms.
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Affiliation(s)
- Richard A. Hickman
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA
| | - John T. Gionco
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA
| | - Phyllis L. Faust
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA
| | - Michael L. Miller
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA
| | - Jeffrey Bruce
- Department of Neurological Surgery, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA
| | - Gabrielle Page-Wilson
- Department of Medicine, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA
| | - Marc K. Rosenblum
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Sylvia L. Asa
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
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2
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Sanders K, Galac S, Meij BP. Pituitary tumour types in dogs and cats. Vet J 2021; 270:105623. [PMID: 33641809 DOI: 10.1016/j.tvjl.2021.105623] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 12/25/2022]
Abstract
Pituitary tumours are common in dogs and are being increasingly recognized in cats. Pituitary tumours are usually classified as adenomas and should only be classified as carcinomas when there is evidence of metastatic spread of the tumour, which is rare. Despite the benign nature of most pituitary tumours, they can still compress or invade neighbouring tissues. Pituitary tumours can be functional (hormonally active) or non-functional (hormonally silent). The aim of this review was to provide an overview of the different pituitary tumour types in dogs and cats that have been reported in the literature. In dogs, the most common pituitary tumour type is the corticotroph adenoma, which can cause pituitary-dependent hypercortisolism. In cats, the most common pituitary tumour is the somatotroph adenoma, which can cause hypersomatotropism, and the second-most common is the corticotroph adenoma. A lactotroph adenoma has been described in one dog, while gonadotroph, thyrotroph and null cell adenomas have not been described in dogs or cats. Hormonally silent adenomas are likely underdiagnosed because they do not result in an endocrine syndrome. Tools used to classify pituitary tumours in humans, particularly immunohistochemistry for lineage-specific transcription factors, are likely to be useful to classify canine and feline pituitary tumours of unknown origin. Future studies are required to better understand the full range of pituitary adenoma pathology in dogs and cats and to determine whether certain adenoma subtypes behave more aggressively than others. Currently, the mechanisms that underlie pituitary tumorigenesis in dogs and cats are still largely unknown. A better understanding of the molecular background of these tumours could help to identify improved pituitary-targeted therapeutics.
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Affiliation(s)
- K Sanders
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands.
| | - S Galac
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands
| | - B P Meij
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands
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3
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Neou M, Villa C, Armignacco R, Jouinot A, Raffin-Sanson ML, Septier A, Letourneur F, Diry S, Diedisheim M, Izac B, Gaspar C, Perlemoine K, Verjus V, Bernier M, Boulin A, Emile JF, Bertagna X, Jaffrezic F, Laloe D, Baussart B, Bertherat J, Gaillard S, Assié G. Pangenomic Classification of Pituitary Neuroendocrine Tumors. Cancer Cell 2020; 37:123-134.e5. [PMID: 31883967 DOI: 10.1016/j.ccell.2019.11.002] [Citation(s) in RCA: 164] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 10/07/2019] [Accepted: 11/21/2019] [Indexed: 12/14/2022]
Abstract
Pituitary neuroendocrine tumors (PitNETs) are common, with five main histological subtypes: lactotroph, somatotroph, and thyrotroph (POU1F1/PIT1 lineage); corticotroph (TBX19/TPIT lineage); and gonadotroph (NR5A1/SF1 lineage). We report a comprehensive pangenomic classification of PitNETs. PitNETs from POU1F1/PIT1 lineage showed an epigenetic signature of diffuse DNA hypomethylation, with transposable elements expression and chromosomal instability (except for GNAS-mutated somatotrophs). In TPIT lineage, corticotrophs were divided into three classes: the USP8-mutated with overt secretion, the USP8-wild-type with increased invasiveness and increased epithelial-mesenchymal transition, and the large silent tumors with gonadotroph transdifferentiation. Unexpected expression of gonadotroph markers was also found in GNAS-wild-type somatotrophs (SF1 expression), challenging the current definition of SF1/gonadotroph lineage. This classification improves our understanding and affects the clinical stratification of patients with PitNETs.
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Affiliation(s)
- Mario Neou
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France
| | - Chiara Villa
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France; Department of Pathological Cytology and Anatomy, Foch Hospital, 92151 Suresnes, France; Department of Endocrinology, Sart Tilman B35, 4000 Liège, Belgium
| | - Roberta Armignacco
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France
| | - Anne Jouinot
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France
| | - Marie-Laure Raffin-Sanson
- Department of Endocrinology, Hôpital Ambroise Paré, Assistance Publique-Hôpitaux de Paris, 92100 Boulogne Billancourt, France; UE4340, Université de Versailles Saint-Quentin-en-Yvelines Montigny-le-Bretonneux, 78000 Versailles, France
| | - Amandine Septier
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France
| | - Franck Letourneur
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France; Plate-Forme Séquençage et Génomique (Genom'IC), INSERM U1016, Institut Cochin, 75014 Paris, France
| | - Ségolène Diry
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France
| | - Marc Diedisheim
- Department of Diabetology, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, 75014 Paris, France
| | - Brigitte Izac
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France; Plate-Forme Séquençage et Génomique (Genom'IC), INSERM U1016, Institut Cochin, 75014 Paris, France
| | - Cassandra Gaspar
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France; Sorbonne Université, Inserm, UMS PASS, Plateforme Post-génomique de la Pitié-Salpêtrière, P3S, 75013 Paris, France
| | - Karine Perlemoine
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France
| | - Victoria Verjus
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France
| | - Michèle Bernier
- Department of Pathological Cytology and Anatomy, Foch Hospital, 92151 Suresnes, France
| | - Anne Boulin
- Department of Diagnostic and Interventional Neuroradiology, Foch Hospital, 92151 Suresnes, France
| | - Jean-François Emile
- Department of Pathology, Ambroise Paré, Assistance Publique-Hôpitaux de Paris, 92100 Boulogne Billancourt, France
| | - Xavier Bertagna
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France; Department of Endocrinology, Center for Rare Adrenal Diseases, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, 75014 Paris, France
| | - Florence Jaffrezic
- INRA, UMR 1313 GABI, Université Paris Saclay, AgroParisTech, 78352 Jouy-en-Josas, France
| | - Denis Laloe
- INRA, UMR 1313 GABI, Université Paris Saclay, AgroParisTech, 78352 Jouy-en-Josas, France
| | | | - Jérôme Bertherat
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France; Department of Endocrinology, Center for Rare Adrenal Diseases, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, 75014 Paris, France
| | - Stephan Gaillard
- Department of Neurosurgery, Foch Hospital, 92151 Suresnes, France
| | - Guillaume Assié
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes-Université de Paris, 75006 Paris, France; Department of Endocrinology, Center for Rare Adrenal Diseases, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, 75014 Paris, France.
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4
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Mete O, Kefeli M, Çalışkan S, Asa SL. GATA3 immunoreactivity expands the transcription factor profile of pituitary neuroendocrine tumors. Mod Pathol 2019; 32:484-489. [PMID: 30390035 DOI: 10.1038/s41379-018-0167-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 10/01/2018] [Accepted: 10/02/2018] [Indexed: 01/21/2023]
Abstract
The modern classification of pituitary neuroendocrine tumors relies mainly on immunohistochemistry for pituitary transcription factors, hormones, and other biomarkers, including low molecular weight cytokeratins. The transcription factor GATA2 is required for development of gonadotrophs and thyrotrophs but has not been used for classification of pituitary tumors. Because of genomic paralogy of GATA2 and GATA3, we postulated that GATA3 immunohistochemistry may detect GATA2 in the adenohypophysis. We examined 151 tumors originating from Ondokuz Mayis University, Turkey (n = 83) and University Health Network, Canada (n = 68). Initially, 83 tumors (26 gonadotroph, 24 somatotroph, 17 corticotroph, 12 lactotroph, 2 poorly differentiated Pit-1 lineage tumors that expressed TSH and 2 null cell tumors) from Ondokuz Mayis University were investigated with the GATA3 monoclonal antibody L50-823. Retrospective review of the files of University Health Network identified 68 tumors (43 gonadotroph, 3 somatotroph, 2 lactotroph, 1 mammosomatotroph, 9 corticotroph, 7 poorly differentiated Pit-1 lineage tumors with TSH expression, 2 plurihormonal tumors with TSH expression and 1 null cell tumor) that were examined with the same GATA3 antibody and served as a validation cohort. All somatotroph, lactotroph and mammosomatotroph tumors and the null cell tumors were negative for GATA3. Sixty-eight (98.5%) gonadotroph tumors were positive for GATA3; 64 had diffuse reactivity. Two plurihormonal tumors with TSH expression and eight (88.8%) poorly differentiated Pit-1 lineage tumors with variable TSH expression were positive for GATA3. One of 26 (3.8%) corticotroph tumors was diffusely positive for GATA3. This study shows that GATA3 immunoreactivity is characteristic of pituitary gonadotroph and TSH-producing tumors. This finding expands the pattern of transcription factors that are used to classify adenohypophysial tumors and is important in the differential diagnosis of sellar tumors, as GATA3 expression is also a feature of primary sellar paragangliomas as well as carcinomas that may metastasize to the sella.
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Affiliation(s)
- Ozgur Mete
- Department of Pathology, University Health Network, and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.
| | - Mehmet Kefeli
- Department of Pathology, Ondokuz Mayis University, Samsun, Turkey
| | - Sultan Çalışkan
- Department of Pathology, Ondokuz Mayis University, Samsun, Turkey
| | - Sylvia L Asa
- Department of Pathology, University Health Network, and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.
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5
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Saeger W, Müller M, Buslei R, Flitsch J, Fahlbusch R, Buchfelder M, Knappe UJ, Crock PA, Lüdecke DK. Recurrences of Pituitary Adenomas or Second De Novo Tumors: Comparisons with First Tumors. World Neurosurg 2018; 119:e118-e124. [PMID: 30026158 DOI: 10.1016/j.wneu.2018.07.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 07/05/2018] [Accepted: 07/07/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Recurrences of pituitary adenomas are not so rare. METHODS In the German Registry of Pituitary Tumors, more than 12,000 surgical specimens were collected between 1967 and 2012, of which 312 patients with altogether 334 recurrences (n = 646 specimens) were included in our study. RESULTS The histopathology of 162 recurrent adenomas could be compared with the original tumor and 37 second recurrences could be compared with the first recurrence. Comparing the proliferation index (Ki-67) of the original and the first recurrent tumor (n = 162), we found an unchanged index in 43 cases (26%), whereas in 69 cases (43%) the index increased and in 50 cases (31%) it decreased. Comparing the first with the second recurrence (n = 37), we found an unchanged index in 8 cases (22%), an increased index in 15 cases (40%), and a decreased index in 14 cases (38%). The third recurrence showed an unchanged index in 1 case (20%), an increased index in 2 cases (40%), and a decreased index in 2 cases (40%). p53 was unchanged in recurrences in 44% of cases, increased in 33%, and decreased in 22%. In 4 cases, adenomas developed into adenomas with strongly increased proliferation (formerly atypical adenomas, now aggressive adenomas) for the first recurrence, and 9 recurrences became aggressive adenomas. A change of tumor type without change of the common transcription factor occurred in 82 cases. CONCLUSIONS A second independent de novo adenoma was present in 10 cases, probably due to changes of transcription factors.
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Affiliation(s)
- Wolfgang Saeger
- Institute of Neuropathology, University of Hamburg, Hamburg, Germany.
| | - Maximilian Müller
- Institute of Neuropathology, University of Hamburg, Hamburg, Germany
| | - Rolf Buslei
- Institute of Pathology, SozialStiftung Bamberg, Bamberg, Germany
| | - Jörg Flitsch
- Clinic of Neurosurgery, University of Hamburg, Hamburg, Germany
| | | | - Michael Buchfelder
- Clinic of Neurosurgery, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ulrich J Knappe
- Department of Neurosurgery, Johannes-Wesling-Klinikum Minden, Minden, Germany
| | - Patricia A Crock
- Department of Paediatric Endocrinology, John Hunter Children's Hospital, University of Newcastle, Newcastle, Australia
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6
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Innamorati G, Wilkie TM, Kantheti HS, Valenti MT, Dalle Carbonare L, Giacomello L, Parenti M, Melisi D, Bassi C. The curious case of Gαs gain-of-function in neoplasia. BMC Cancer 2018; 18:293. [PMID: 29544460 PMCID: PMC5856294 DOI: 10.1186/s12885-018-4133-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 02/15/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Mutations activating the α subunit of heterotrimeric Gs protein are associated with a number of highly specific pathological molecular phenotypes. One of the best characterized is the McCune Albright syndrome. The disease presents with an increased incidence of neoplasias in specific tissues. MAIN BODY A similar repertoire of neoplasms can develop whether mutations occur spontaneously in somatic tissues during fetal development or after birth. Glands are the most "permissive" tissues, recently found to include the entire gastrointestinal tract. High frequency of activating Gαs mutations is associated with precise diagnoses (e.g., IPMN, Pyloric gland adenoma, pituitary toxic adenoma). Typically, most neoplastic lesions, from thyroid to pancreas, remain well differentiated but may be a precursor to aggressive cancer. CONCLUSIONS Here we propose the possibility that gain-of-function mutations of Gαs interfere with signals in the microenvironment of permissive tissues and lead to a transversal neoplastic phenotype.
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Affiliation(s)
- Giulio Innamorati
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy
| | - Thomas M. Wilkie
- Pharmacology Department, UT Southwestern Medical Center, Dallas, TX USA
| | | | - Maria Teresa Valenti
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Luca Dalle Carbonare
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Luca Giacomello
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy
| | - Marco Parenti
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Davide Melisi
- Laboratory of Oncology and Molecular Therapy, Department of Medicine, University of Verona, Verona, Italy
| | - Claudio Bassi
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy
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7
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Qiu W, Guo F, Glass K, Yuan GC, Quackenbush J, Zhou X, Tantisira KG. Differential connectivity of gene regulatory networks distinguishes corticosteroid response in asthma. J Allergy Clin Immunol 2017; 141:1250-1258. [PMID: 28736268 DOI: 10.1016/j.jaci.2017.05.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 04/02/2017] [Accepted: 05/03/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Variations in drug response between individuals have prevented us from achieving high drug efficacy in treating many complex diseases, including asthma. Genetics plays an important role in accounting for such interindividual variations in drug response. However, systematic approaches for addressing how genetic factors and their regulators determine variations in drug response in asthma treatment are lacking. OBJECTIVE We sought to identify key transcriptional regulators of corticosteroid response in asthma using a novel systems biology approach. METHODS We used Passing Attributes between Networks for Data Assimilations (PANDA) to construct the gene regulatory networks associated with good responders and poor responders to inhaled corticosteroids based on a subset of 145 white children with asthma who participated in the Childhood Asthma Management Cohort. PANDA uses gene expression profiles and published relationships among genes, transcription factors (TFs), and proteins to construct the directed networks of TFs and genes. We assessed the differential connectivity between the gene regulatory network of good responders versus that of poor responders. RESULTS When compared with poor responders, the network of good responders has differential connectivity and distinct ontologies (eg, proapoptosis enriched in network of good responders and antiapoptosis enriched in network of poor responders). Many of the key hubs identified in conjunction with clinical response are also cellular response hubs. Functional validation demonstrated abrogation of differences in corticosteroid-treated cell viability following siRNA knockdown of 2 TFs and differential downstream expression between good responders and poor responders. CONCLUSIONS We have identified and validated multiple TFs influencing asthma treatment response. Our results show that differential connectivity analysis can provide new insights into the heterogeneity of drug treatment effects.
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Affiliation(s)
- Weiliang Qiu
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass
| | - Feng Guo
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass
| | - Kimberly Glass
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass
| | - Guo Cheng Yuan
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Mass; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Mass
| | - John Quackenbush
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Mass; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Mass
| | - Xiaobo Zhou
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass
| | - Kelan G Tantisira
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass; Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass.
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8
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Xiong Q, Ge W. Gene mutations in Cushing's disease. Biomed Rep 2016; 5:277-282. [PMID: 27588171 PMCID: PMC4998087 DOI: 10.3892/br.2016.729] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 06/17/2016] [Indexed: 01/10/2023] Open
Abstract
Cushing's disease (CD) is a severe (and potentially fatal) disease caused by adrenocorticotropic hormone (ACTH)-secreting adenomas of the pituitary gland (often termed pituitary adenomas). The majority of ACTH-secreting corticotroph tumors are sporadic and CD rarely appears as a familial disorder, thus, the genetic mechanisms underlying CD are poorly understood. Studies have reported that various mutated genes are associated with CD, such as those in menin 1, aryl hydrocarbon receptor-interacting protein and the nuclear receptor subfamily 3 group C member 1. Recently it was identified that ubiquitin-specific protease 8 mutations contribute to CD, which was significant towards elucidating the genetic mechanisms of CD. The present study reviews the associated gene mutations in CD patients.
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Affiliation(s)
- Qi Xiong
- National Key Laboratory of Medical Molecular Biology and Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing 100005, P.R. China
- Department of Orthopedics, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Wei Ge
- National Key Laboratory of Medical Molecular Biology and Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing 100005, P.R. China
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9
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Chang HS, Won ES, Lee HY, Ham BJ, Kim YG, Lee MS. The association of proopiomelanocortin polymorphisms with the risk of major depressive disorder and the response to antidepressants via interactions with stressful life events. J Neural Transm (Vienna) 2014; 122:59-68. [PMID: 25448875 DOI: 10.1007/s00702-014-1333-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 11/05/2014] [Indexed: 11/30/2022]
Abstract
Hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis is among the most consistent neuroendocrine abnormalities in major depressive disorder (MDD). The peptide adrenocorticotropin hormone (ACTH) mediates HPA axis function during stress and is encoded by the proopiomelanocortin (POMC) gene polycistronically. After screening 39 POMC polymorphisms, we evaluated the association of polymorphisms with susceptibility to MDD in 145 MDD patients and 193 normal subjects; in patients, we also evaluated the response to treatment with antidepressants. Additionally, we investigated the role of gene-environment interaction between POMC haplotypes and stressful life events (SLE) in the treatment response. Although genotypes and haplotypes were not significantly associated with the risk of MDD, non-remitters were more likely to carry haplotype 1 (ht1) and to have no ht2 than were remitters (corrected P = 0.010-0.035). Although observations were limited in patients without SLE, a significant haplotype-SLE interaction was observed (P = 0.020). Additionally, at 1, 2, and 8 weeks of treatment, the 21-item Hamilton Depression Rating scores of MDD subjects with POMC ht2 were significantly (P = 0.003-0.044) lower than those of patients with ht1 in subjects those did not experience SLE. MDD subjects possessing POMC ht2 achieved remission significantly (P = 0.013; survival analysis) faster than patients with ht1. This study suggests that POMC haplotypes, via an interaction with SLE, are associated with antidepressant treatment outcomes in MDD patients. Regarding SLE, haplotypes of the POMC gene could be useful markers for predicting the response to antidepressant treatment in MDD patients.
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Affiliation(s)
- Hun Soo Chang
- Department of Medical Bioscience, Graduated School, Soonchunhyang University, Bucheon, 420-767, Republic of Korea
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10
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Cooper O, Ben-Shlomo A, Bonert V, Bannykh S, Mirocha J, Melmed S. Silent corticogonadotroph adenomas: clinical and cellular characteristics and long-term outcomes. Discov Oncol 2011; 1:80-92. [PMID: 20717480 DOI: 10.1007/s12672-010-0014-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Silent corticotrophins adenomas (SCAs) are clinically silent and non-secreting but immunostain positively for ACTH. We hypothesize that SCAs comprise both corticotroph and gonadotroph characteristics. Cohort analysis from 1994-2008 with follow-up time ranging from 1-15 years in a tertiary referral center. We compared preoperative and postoperative clinical results and tumor cytogenesis in 25 SCAs and 84 nonfunctioning adenomas in 109 consecutive patients diagnosed pre-operatively with nonfunctioning pituitary adenomas. Clinical outcomes were radiologic and hormonal measures. Pathologic outcomes were expression of relevant pituitary hormones, tissue-specific transcription factors, and electron microscopy features. Preoperative SCA presentation was similar to that observed for nonfunctioning adenomas. However, SCAs recurred postoperatively at a median of 3 years vs. 8 years for nonfunctioning adenomas (p<0.0001). Fifty-four percent of patients with SCAs had new onset postoperative hypopituitarism vs. 17% of nonfunctioning adenomas (p<0.025). SCAs (n=18) were immunopositive for ACTH, cytoplasmic and nuclear SF-1, NeuroD1, DAX-1, and alpha-gonadotropin subunit, but Tpit negative, and co-expression of tumor ACTH with either SF-1 or LH was detected. In contrast, functional corticotroph adenomas (n=11) were immunopositive for ACTH, nuclear SF-1, NeuroD1, and Tpit, but negative for DAX-1, a gonadotroph cell transcription factor. Gonadotroph adenomas (n=23) were immunonegative for ACTH and Tpit but positive for nuclear SF-1, NeuroD1, and DAX-1. SCA electron microscopy demonstrated ultrastructural features consistent with corticotroph and gonadotroph cells. As SCAs exhibit features consistent with both corticotroph and gonadotroph cytologic origin, we propose a pathologic and clinically distinct classification of SCAs as silent corticogonadotroph adenomas.
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Affiliation(s)
- Odelia Cooper
- Pituitary Center, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
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Related pituitary cell lineages develop into interdigitated 3D cell networks. Proc Natl Acad Sci U S A 2011; 108:12515-20. [PMID: 21746936 DOI: 10.1073/pnas.1105929108] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The pituitary gland has long been considered to be a random patchwork of hormone-producing cells. By using pituitary-scale tridimensional imaging for two of the least abundant cell lineages, the corticotropes and gonadotropes, we have now uncovered highly organized and interdigitated cell networks that reflect homotypic and heterotypic interactions between cells. Although newly differentiated corticotrope cells appear on the ventral surface of the gland, they rapidly form homotypic strands of cells that extend from the lateral tips of the anterior pituitary along its ventral surface and into the medial gland. As the corticotrope network is established away from the microvasculature, cell morphology changes from rounded, to polygonal, and finally to cells with long cytoplasmic processes or cytonemes that connect corticotropes to the perivascular space. Gonadotropes differentiate later and are positioned in close proximity to corticotropes and capillaries. Blockade of corticotrope terminal differentiation produced by knockout of the gene encoding the transcription factor Tpit results in smaller gonadotropes within an expanded cell network, particularly in the lateral gland. Thus, pituitary-scale tridimensional imaging reveals highly structured cell networks of unique topology for each pituitary lineage. The sequential development of interdigitated cell networks during organogenesis indicate that extensive cell:cell interactions lead to a highly ordered cell positioning rather than random patchwork.
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Osamura RY, Kajiya H, Takei M, Egashira N, Tobita M, Takekoshi S, Teramoto A. Pathology of the human pituitary adenomas. Histochem Cell Biol 2008; 130:495-507. [PMID: 18688636 PMCID: PMC2522328 DOI: 10.1007/s00418-008-0472-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2008] [Indexed: 12/29/2022]
Abstract
This article describes pertinent aspects of histochemical and molecular changes of the human pituitary adenomas. The article outlines individual tumor groups with general, specific and molecular findings. The discussion further extends to the unusual adenomas or carcinomas. The description in this article are pertinent not only for the practicing pathologists who are in the position of making proper diagnosis, but also for the pituitary research scientists who engage in solving basic problems in pituitary neoplasms by histochemistry and molecular biology.
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Affiliation(s)
- Robert Y Osamura
- Department of Pathology, Tokai University School of Medicine, 143 Shimokasuya, Boseidai Isehara, Kanagawa 259-1193, Japan.
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