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Endocrinology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
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Pituitary Center Rotterdam, Erasmus MC, Rotterdam, The Netherlands
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Department of Internal Medicine and & Medical Specialties (DIMI) and Center of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
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Pituitary Center Rotterdam, Erasmus MC, Rotterdam, The Netherlands
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Introduction The presence of an ACTH-secreting pituitary adenoma (corticotroph adenoma) in the anterior or intermediate lobe of the pituitary gland is the cause of Cushing’s disease (CD), a severe systemic condition characterized by a chronic
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, Cushing’s syndrome, demonstrate many features of the so-called metabolic syndrome. Based on the precedent of AME and ‘Cushing’s disease of the kidney’, several groups have now evaluated cortisol metabolism in patients with obesity-metabolic syndrome with
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, a very recent study showed an increase in AMH levels during treatment with MTT, although the data were from only three patients aged 33–45 affected by Cushing’s disease ( Salenave et al. 2015 ). The administration of MTT in vitro , in COV-434, a
Institute of Histology and Embryology, Faculty of Medicine of Porto, Porto, Portugal
Instituto de Biologia Molecular e Celular (IBMC), Porto, Portugal
IPATIMUP Porto Portugal
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Institute of Histology and Embryology, Faculty of Medicine of Porto, Porto, Portugal
Instituto de Biologia Molecular e Celular (IBMC), Porto, Portugal
IPATIMUP Porto Portugal
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Institute of Histology and Embryology, Faculty of Medicine of Porto, Porto, Portugal
Instituto de Biologia Molecular e Celular (IBMC), Porto, Portugal
IPATIMUP Porto Portugal
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Institute of Histology and Embryology, Faculty of Medicine of Porto, Porto, Portugal
Instituto de Biologia Molecular e Celular (IBMC), Porto, Portugal
IPATIMUP Porto Portugal
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(Lotfi & Armelin 1998, Pignatelli et al. 2002 ). Notably, adrenocortical hyperplasia can occur after prolonged ACTH exposure in patients suffering from pituitary tumours producing ACTH, a situation known as Cushing’s disease (CD; McNicol 2000 , Imaki
Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Institute for Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
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Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Glucocorticoid signaling is context dependent, and in certain scenarios, glucocorticoid receptors (GRs) are able to engage with other members of the nuclear receptor subfamily. Glucocorticoid signaling can exert sexually dimorphic effects, suggesting a possible interaction with androgen sex hormones. We therefore set out to determine the crosstalk between glucocorticoids and androgens in metabolic tissues including white adipose tissue, liver and brown adipose tissue. Thereto we exposed male C57BL/6J mice to elevated levels of corticosterone in combination with an androgen receptor (AR) agonist or an AR antagonist. Systemic and local glucocorticoid levels were determined by mass spectrometry, and tissue expression of glucocorticoid-responsive genes and protein was measured by RT-qPCR and Western blot, respectively. To evaluate crosstalk in vitro, cultured white and brown adipocytes were exposed to a combination of corticosterone and an AR agonist. We found that AR agonism potentiated transcriptional response to GR in vitro in white and brown adipocytes and in vivo in white and brown adipose tissues. Conversely, AR antagonism substantially attenuated glucocorticoid signaling in white adipose tissue and liver. In white adipose tissue, this effect could partially be attributed to decreased 11B-hydroxysteroid dehydrogenase type 1-mediated glucocorticoid regeneration upon AR antagonism. In liver, attenuated GR activity was independent of active glucocorticoid ligand levels. We conclude that androgen signaling modulates GR transcriptional output in a tissue-specific manner.
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Introduction Pituitary-dependent hyperadrenocorticism (PDH) is a common spontaneous endocrine disorder in dogs, which shows many similarities with Cushing’s disease in humans ( Kemppainen & Peterson 1994 ). As in humans with Cushing’s
Department of Neuroscience and Cell Biology, University of Medicine and Dentistry of NJ, Piscataway, New Jersey 08854, USA
Département de Pharmacologie, Faculté de Mèdecine et Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Québec, Canada JIH 5N4
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Department of Neuroscience and Cell Biology, University of Medicine and Dentistry of NJ, Piscataway, New Jersey 08854, USA
Département de Pharmacologie, Faculté de Mèdecine et Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Québec, Canada JIH 5N4
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Department of Neuroscience and Cell Biology, University of Medicine and Dentistry of NJ, Piscataway, New Jersey 08854, USA
Département de Pharmacologie, Faculté de Mèdecine et Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Québec, Canada JIH 5N4
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Department of Neuroscience and Cell Biology, University of Medicine and Dentistry of NJ, Piscataway, New Jersey 08854, USA
Département de Pharmacologie, Faculté de Mèdecine et Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Québec, Canada JIH 5N4
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Department of Neuroscience and Cell Biology, University of Medicine and Dentistry of NJ, Piscataway, New Jersey 08854, USA
Département de Pharmacologie, Faculté de Mèdecine et Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Québec, Canada JIH 5N4
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Department of Neuroscience and Cell Biology, University of Medicine and Dentistry of NJ, Piscataway, New Jersey 08854, USA
Département de Pharmacologie, Faculté de Mèdecine et Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Québec, Canada JIH 5N4
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null mice die at 5 weeks due to a Cushing’s disease-like disorder ( Westphal et al. 1999 ). Cushing’s disease normally arises from adrenal hypercorticos-teronism as a result of ACTH hypersecretion from anterior pituitary (reviewed by Shomali & Hussain
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expression is restricted to adrenocorticotropin (ACTH)-secreting cells of the normal human anterior pituitary. Moreover, PPARγ is also expressed in human ACTH-secreting pituitary tumors causing Cushing’s disease and the activation of PPARγ potently inhibits
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model of ACTH-dependent Cushing’s disease used in previous studies ( Heaney et al. 2002 ). In control (vehicle) mice transplanted with AtT20 cells, significant tumor growth with body weight loss was observed during the time of the examination (21 days
Department of Cell Biology, Physiology and Immunology, Universidad de Córdoba, Córdoba, Spain
Hospital Universitario Reina Sofía, Córdoba, Spain
CIBER Fisiopatología de la Obesidad y Nutrición (CIBERObn), Córdoba, Spain
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Department of Cell Biology, Physiology and Immunology, Universidad de Córdoba, Córdoba, Spain
Hospital Universitario Reina Sofía, Córdoba, Spain
CIBER Fisiopatología de la Obesidad y Nutrición (CIBERObn), Córdoba, Spain
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Department of Cell Biology, Physiology and Immunology, Universidad de Córdoba, Córdoba, Spain
Hospital Universitario Reina Sofía, Córdoba, Spain
CIBER Fisiopatología de la Obesidad y Nutrición (CIBERObn), Córdoba, Spain
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Department of Cell Biology, Physiology and Immunology, Universidad de Córdoba, Córdoba, Spain
Hospital Universitario Reina Sofía, Córdoba, Spain
CIBER Fisiopatología de la Obesidad y Nutrición (CIBERObn), Córdoba, Spain
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Department of Morphological Sciences, Universidad de Córdoba, Córdoba, Spain
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Service of Endocrinology and Nutrition, Hospital Universitario Reina Sofía, Córdoba, Spain
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Department of Cell Biology, Physiology and Immunology, Universidad de Córdoba, Córdoba, Spain
Hospital Universitario Reina Sofía, Córdoba, Spain
CIBER Fisiopatología de la Obesidad y Nutrición (CIBERObn), Córdoba, Spain
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Department of Cell Biology, Physiology and Immunology, Universidad de Córdoba, Córdoba, Spain
Hospital Universitario Reina Sofía, Córdoba, Spain
CIBER Fisiopatología de la Obesidad y Nutrición (CIBERObn), Córdoba, Spain
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, affecting octreotide response ( van der Hoek et al . 2005 , van der Pas et al . 2013 ), which suggests that octreotide therapy in untreated Cushing’s disease patients presenting with high cortisol levels would be ineffective as previously reported in two