Paleogenetic study of ancient DNA suggestive of X-Linked acrogigantism

International audienc

Recipient/donor contradictory genotypes with impact on drug pharmacogenetics after liver transplant

International audienc

Droplet Digital PCR: A New Technology for Detection and Quantification of Chimerism After Allogenic Hematopoietic Stem Cell Transplantation

International audienc

Expression of the mRNAs Coding for the Glucocorticoid Receptor Isoforms in Obesity

International audienc

Droplet Digital PCR: A New Technology for Detection and Quantification of Chimerism After Allogenic Hematopoietic Stem Cell Transplantation

International audienc

Using Digital Droplet Polymerase Chain Reaction to Detect the Mosaic GNAS Mutations in Whole Blood DNA or Circulating Cell-Free DNA in Fibrous Dysplasia and McCune-Albright Syndrome

International audienceThe GNAS postzygotic mosaic activating mutations involved in fibrous dysplasia and Mc Cune Albright syndrome (FD/MAS) are not detectable in leukocytes by Sanger sequencing. Digital droplet PCR™ detects GNAS mutations in 7/12 (58.3%) FD/MAS-suspected patients from whole blood DNA, and in 4/5 patients (80%) from circulating cell-free DNA

Differential expression of miR200a-3p and miR21 in grade II–III and grade IV gliomas

International audienc

McCune-Albright Syndrome: A Detailed Pathological And Genetic Analysis of Disease Effects in an Adult Patient.

International audience: Context: McCune Albright syndrome (MAS) is a clinical association of endocrine and non-endocrine anomalies caused by post-zygotic mutation of the GNAS1 gene, leading to somatic activation of the stimulatory α subunit of G protein (Gsα). Important advances have been made recently in describing pathological characteristics of many MAS-affected tissues, particularly pituitary, testicular and adrenal disease. Other rarer disease related features are emerging. Objective: To study pathological and genetic findings of MAS on a tissue-by-tissue basis in classically and non classically affected tissues. Design: A comprehensive autopsy and genetic analysis Setting: Tertiary referral University Hospital Patients: Adult male patient with MAS and severe disease burden including gigantism Intervention(s): Clinical, hormonal and radiographic studies; gross and microscopic pathology analyses, conventional PCR and droplet digital PCR analyses of affected and non affected tissues Main Outcome Measure: Pathological findings, presence of GNAS1 mutations Results: The patient was diagnosed with MAS syndrome at six years of age based on the association of café-au-lait spots and radiological signs of polyostotic fibrous dysplasia. Gigantism developed and hyperprolactinemia, hypogonadotropic hypogonadism and hyperparathyroidism were diagnosed throughout adult period. The patient died at the age of 39 from pulmonary embolism. A detailed study revealed mosaiscism for the p.R201C GNAS mutation distributed across many endocrine and non-endocrine tissues. These genetically implicated tissues included rare or previously undescribed disease associations including primary hyperparathyroidism, and hyperplasia of the thymus and endocrine pancreas. Conclusions: This comprehensive pathological study of a single patient highlights the complex clinical profile of MAS and illustrates important advances in understanding the characteristics of somatic GNAS1 related pathology across a wide range of affected organs