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    The cAMP-signaling cancers, which are defined by functionally-significant somatic mutations in one or more elements of the cAMP signaling pathway, have an unexpectedly wide range of cell origins, clinical manifestations, and potential therapeutic options. Mutations in at least 9 cAMP signaling pathway genes (TSHR, GPR101, GNAS, PDE8B, PDE11A, PRKARA1, PRKACA, PRKACB, and CREB) have been…

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    • The cAMP-signaling cancers: Clinically-divergent disorders with a common central pathway https://t.co/cPKXmuLrlu

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    Genetic alterations within the cAMP/PKA pathway result in a spectrum of adrenocortical disorders. Implicated genes include GNAS, PDE8, PDE11A, PRKAR1A/B, and PRKACA. To date, somatic PRKACA mutations and germline PRKACA copy number gain have been associated with the development of cortisol-secreting adrenocortical adenomas and bilateral adrenal hyperplasia, respectively. While perturbations…

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    • "It suggests that the Cushing syndrome phenotypes arising from somatic and germline PRKACA abnormalities likely exist on a spectrum." Mosaic PRKACA duplication causing early-onset Cushing syndrome and acral cutaneous mucinosis https://t.co/GNSE0OD158

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    Multiple endocrine neoplasia 4 (MEN4) is a rare multiglandular endocrine neoplasia syndrome clinically hallmarked by primary hyperparathyroidism (PHPT), pituitary adenoma (PitAd) and neuroendocrine tumors (NET), clinically overlapping MEN1. The underlying mutated gene, CDKN1B, encodes for the cell-cycle regulator p27. Possible genotype-phenotype correlation in MEN4 have not been thoroughly…

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    • Phenotype-genotype correlation in MEN4 - particularly challenging in genetic disorders of incomplete penetrance. https://t.co/mTin04fmaI

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    Purpose: Mosaicism is a feature of several inherited tumor syndromes. Only few cases of mosaicism in Multiple Endocrine Neoplasia type 1 (MEN1) have been described. Next generation sequencing (NGS) offers new possibilities for detecting mosaicism. Here we report the first study to systematically look for MEN1 mosaicism, using blood DNA, in MEN1-suspected patients but without MEN1 pathogenic…

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    • MEN1 mosaicism - the mystery of genotype-negative #MEN1 https://t.co/bKFOLCC4We