Searchable abstracts of presentations at key conferences in endocrinology

ea0090p672 | Pituitary and Neuroendocrinology | ECE2023

Phosphoproteomics analysis of aryl hydrocarbon receptor interacting protein (AIP) knockout cells reveals AIP-mediated kinase signalling cascades

Barry Sayka , Haworth Oliver , Rajeeve Vinothini , Cutillas Pedro , Korbonits Marta

Introduction: Aryl hydrocarbon receptor interacting protein (AIP) is a multifunctional co-chaperone protein: it behaves as a tumour suppressor in the pituitary, but may have other roles including oncogenic function in other tissues. Protein phosphorylation is an important posttranslational modification that regulates protein activity, which is crucial for understanding protein function. To understand the molecular pathways altered in AIP deficient cells, we have performed glob...

ea0086p90 | Neuroendocrinology and Pituitary | SFEBES2022

Phosphoproteomics analysis of aryl hydrocarbon receptor interacting protein (AIP) knockout cells reveals AIP-mediated kinase signalling cascades

Barry Sayka , Rai Ashutosh , Haworth Haworth Oliver , Rajeeve Vinothini , Cutillas Pedro , Korbonits Marta

Introduction: Aryl hydrocarbon receptor interacting protein (AIP) is a multifunctional co-chaperone protein: it behaves as a tumour suppressor in the pituitary, but may have other roles including oncogenic function in other tissues. Protein phosphorylation is an important posttranslational modification that regulates protein activity, which is crucial for understanding protein function. To understand the molecular pathways altered in AIP deficient cells, we have performed glob...

ea0094p80 | Neuroendocrinology and Pituitary | SFEBES2023

Integrated multi-omics data reveals distinct regulatory signatures and signaling pathways of aryl hydrocarbon receptor interacting protein (AIP) knockout cells

Barry Sayka , Rai Ashutosh , Haworth Oliver , Rajeeve Vinothini , Cutillas Pedro , Korbonits Marta

Introduction: Aryl hydrocarbon receptor interacting protein (AIP) is a multifunctional co-chaperone protein with wide-ranging effects. It acts as a tumour suppressor in the pituitary, but may have other roles including oncogenic function in other tissues. To explore the molecular mechanisms, we have performed transcriptomic and phosphoproteomic analysis of Aip-knockout mouse embryonic fibroblasts (Aip-KO MEFs) cells and integrated these data sets.<p class=...

ea0051oc4.4 | Oral Communications 4 | BSPED2017

The MAPK effector B-Raf is essential for hypothalamic-pituitary axis development and activating mutations in BRAF cause congenital hypopituitarism

Kyprianou Nikolina , Gregory Louise , Vignola Maria Lillina , Nichols James , Marinelli Eugenia , Gualtieri Angelica , Scagliotti Valeria , Besser Rachel , Camper Sally , Davis Shannon , Hogler Wolfgang , Temple Karen , Davies Justin H , Casado Pedro , Rajeeve Vinothini , Cutillas Pedro , Gevers Evelien , Dattani Mehul , Gaston-Massuet Carles

Germline mutations in BRAF and other components of the RAS/MAPK pathway are found in RASopathies, whose features include short stature and pubertal delay. The underlying mechanism of endocrinopathies in RASopathies has not been fully elucidated. We report four BRAF mutations (two of which are novel) in four children with congenital hypopituitarism and RASopathy features. To demonstrate the functional role of the variants we performed phosphoproteomic analyses...