ISSN 1662-4009 (online)

ey0015.1-5 | New mechanisms | ESPEYB15

1.5 NOTCH activity differentially affects alternative cell fate acquisition and maintenance

L Cheung , P Le Tissier , SG Goldsmith , M Treier , R Lovell-Badge , K Rizzoti

To read the full abstract: Elife 2018;7. pii: e33318Here, Cheung et al. use sophisticated tissue specific genetic ablation in pituitary cell lineages to uncover an unexpected differential sensitivity of NOTCH activation signalling pathway in different cell lineages during the embryonic murine pituitary development. These findings are important as they further demonstrate the importance of NOTCH pat...

ey0017.4-12 | New paradigms | ESPEYB17

4.12. IGSF1 Deficiency results in human and murine somatotrope neurosecretory hyperfunction

SD Joustra , F Roelfsema , ASP van Trotsenburg , HJ Schneider , RP Kosilek , HM Kroon , JG Logan , NC Butterfield , X Zhou , C Toufaily , B Bak , MO Turgeon , E Brule , FJ Steyn , M Gurnell , O Koulouri , P Le Tissier , P Fontanaud , JHD Bassett , GR Williams , W Oostdijk , JM Wit , AM Pereira , NR Biermasz , DJ Bernard , N Schoenmakers

To read the full abstract: J Clin Endocrinol Metab, March 2020, 105(3):e70–e84A cohort of 21 adult males (aged 19 to 89 years) harboring hemizygous pathogenic IGSF1 gene mutations underwent anthropometry, endocrine testing, testis ultrasonography, and body composition assessment to define the pathophysiological role of IGSF1 in influencing GH secretion. In addition, two lines of Igsf1 -deficient male mice were use...