hrp0098fc3.2 | Pituitary, Neuroendocrinology and Puberty 1 | ESPE2024

Disruption of the Wnt-antagonist APC in the pituitary stem cells is a driver of adamantinomatous craniopharyngioma

Blackburn James , Gomez-Corral Laura , Nicholson James , Tan Racheal , Hall Charlotte , Gualtieri Angelica , Gaston-Massuet Carles

Introduction: Adamantinomatous craniopharyngioma (aPCs) are complex intracranial neoplasms that arise in the sellar or parasellar region affecting the endocrine system, leading to severe comorbidities. Activating mutations resulting in degradation resistant b-Catenin have been shown to be the main driver for a large proportion of these neoplasms. However, the underlying genetic driver for a number of these tumours remains unknown. Here, using murine transgenic...

hrp0098p1-312 | Late Breaking 2 | ESPE2024

SGPL1 deficiency is associated with reduced lipid droplet formation and impaired steroidogenesis in Leydig cells

Kwong Ruth , J Smith Chris , Williams Jack , Asif Kanwal , L Hall Charlotte , Casas Josefina , A Metherell Louise , Prasad Rathi

Loss of function mutations in SGPL1 (sphingosine-1-phosphate lyase) are associated with a syndromic form of primary adrenal insufficiency. A third of affected male individuals also have evidence of early primary gonadal insufficiency, with an undervirilised phenotype at birth. SGPL1 carries out irreversible breakdown of the signalling molecule sphingosine-1-phosphate (S1P) and deficiency leads to accumulation of S1P and other upstream sphingolipid intermediates to var...

hrp0095p1-6 | Adrenals and HPA Axis | ESPE2022

Clinical and Genetic characterization of primary adrenal insufficiency in Sudanese children

A. Musa Salwa , A. Abdullah Mohamed , S. Hassan Samar , Qamar Younus , Hall Charlotte , Maitra Saptarshi , V Maharaj Avinaash , Mariela Marroquin Ramirez Lucia , Read Jordan , Smith Christopher , F Chan Li , A Metherell Louise

Background: Primary adrenal insufficiency (PAI) in children is an uncommon condition. Diagnosis is usually challenging especially in resource limited settings where facilities for antibodies and genetic testing are constrained. Many genetic etiologies have been reported in children with PAI due to congenital adrenal hyperplasia (CAH) and Allgrove syndrome are the commonest identified genetic causes to date in Sudan. Studies from Africa are rare and here we des...

hrp0098rfc8.4 | Adrenals and HPA Axis 2 | ESPE2024

Rare Genetic Etiology of Primary Adrenal Insufficiency in Children; Clinical and Genetic Characterization of a Large Sudanese Cohort

Musa Salwa , Abdullah Mohamed , Hassan Samar , Fauzi Luqman , Qamar Younus , Hall Charlotte , Maitra Saptarshi , Maharaj Avinaash , Mariela Marroquin Ramirez Lucia , Read Jordan , F Chan Li , A Metherell Louise , J Smith Chris

Background: Studies of Primary Adrenal Insufficiency (PAI) from Africa are scanty while in Sudan, congenital adrenal hyperplasia (CAH) followed by Triple A syndrome are the commonest reported genetic etiologies in children. Diagnosis is challenging, especially in resource limited settings where presentation can mimic common childhood diseases and facilities for biochemical and genetic testing are restricted.Patients & Methods...