Searchable abstracts of presentations at key conferences in endocrinology

ea0073oc9.6 | Oral Communications 9: Endocrine-Related Cancer | ECE2021

Presence and pathophysiological role of sst5TMD4, an aberrant spliced variant of the somatostatin receptor subtype 5, in human high-grade astrocytomas

Garcia Garcia Miguel , Fuentes-Fayos Antonio C. , Blanco-Acevedo Cristobal , Solivera Juan , Gahete Ortiz Manuel , Castaño Justo P. , Luque Raul M.

Gliomas are derived from glial-cells and are the most common primary brain tumor, characterized by rapid growth and invasion. Astrocytomas are a subset of malignant gliomas which are classified, based on their agresiveness features, in low grades (I and II) to high grades (HGAs; III and IV), being grade-IV (glioblastoma multiforme; GBM) the most malignant and aggressive type. Current standard treatment for GBMs consists on surgery followed by radiotherapy/chemotherapy; however...

ea0081p132 | Endocrine-Related Cancer | ECE2022

Somatostatin receptor splicing variant SST5TMD4 overexpression in glioblastoma is associated to poor survival, increased aggressiveness features and somatostatin analogs resistance

Perez Gomez Jesus , Fuentes-Fayos Antonio C. , G-Garcia Miguel E. , Peel Annabel , Blanco Acevedo Cristobal , Solivera Vela Juan , Ibanez Costa Alejandro , David Gahete Ortiz Manuel , Castano Justo P. , Luque Raul M.

Glioblastoma (GBM; grade IV astrocytoma) is the one of the most malignant and lethal endocrine-related cancers worldwide. Current standard treatment consists of surgery followed by radiotherapy and/or chemotherapy; however, this is only a palliative approach with a mean post-operative survival of scarcely ~12-15 months. Therefore, the identification of novel therapeutic targets to treat this devastating pathology is urgently needed. In this context, the truncated splicing-vari...

ea0081p771 | Late-Breaking | ECE2022

SRSF6 (Serine/arginine-Rich Splicing Factor 6) is a novel factor regulating androgen receptor signalling in prostate cancer cells

Montero-Hidalgo Antonio J. , Manuel Jimenez-Vacas Juan , de la Salud De la Rosa-Herencia Ana , Herrero-Aguayo Vicente , Gomez-Gomez Enrique , Carlos Fuentes-Fayos Antonio , David Gahete-Ortiz Manuel , Miguel Luque-Huertas Raul

Prostate cancer (PCa) represents the most diagnosed tumour pathology in developed countries among men population. The main pharmacological approach to treat this pathology is based on the blockade of the androgen receptor signalling pathway, commonly known as androgen-deprivation therapy. However, some of the patients does no longer respond to this therapy, therefore developing castration-resistant prostate cancer (CRPC), the most aggressive phenotype of this pathology, which ...

ea0073oc9.2 | Oral Communications 9: Endocrine-Related Cancer | ECE2021

Utility of In1-ghrelin as a novel non-invasive diagnostic and prognostic biomarker of prostate cancer in patients with PSA in the grey-zone

Montero-Hidalgo Antonio J. , Herrero-Aguayo Antonio J. , Enrique Gómez-Gómez , Guler Ipek , Justo P. Castaño , Sarmento-Cabral André , Gahete Ortiz Manuel , Luque Raul M , Jiménez Vacas Juan Manuel

Prostate cancer (PCa) is one of the leading causes of cancer deaths among men population worldwide. This tumour pathology is commonly diagnosed through the determination of serum PSA levels. However, the diagnostic capability of PSA dramatically drops when considering patients with PSA levels lower than 10 ng/ml, the so-called “grey-zone”1. Therefore, additional non-invasive diagnostic biomarkers are urgently needed to substitute/complement PSA. In this se...

ea0073yi8 | Young Investigator Awards | ECE2021

Metformin and simvastatin in combination: drugs repositioning to impair high-grade astrocytomas progression

Fuentes-Fayos Antonio C. , Garcia Garcia Miguel , Jiménez-Vacas Juan M , Martin-Colom Julia , Doval-Rosa Carlos , Blanco-Acevedo Cristobal , Gahete Ortiz Manuel , Castaño Justo P. , Juan Solivera , Luque Raul M.

Astrocytomas are a subtype of malignant gliomas characterized by rapid growth and high diffusion through the brain. Based on the agresiveness features, they are stratified from low grades (I and II) to high grades (HGAs; III and IV), being grade-IV [glioblastoma multiforme (GBM)] the most aggressive and one of the most common malignant cancers in the brain, with an overall survival from diagnosis of ~14 months. Current standard therapies to treat HGAs are not efficient and the...

ea0073oc3.4 | Oral Communications 3: Pituitary and Neuroendocrinology | ECE2021

Truncated somatostatin receptor variant SST5TMD4 determines somatostatin analogs response in corticotropinomas

Alejandro Ibáñez-Costa , Vázquez-Borrego Mari C. , Moreno-Moreno Paloma , Fuentes-Fayos Antonio C. , Moreno Eva Venegas , Fuentes-Fayos Juan Antonio , Herrera-Martínez Aura D. , Gahete Ortiz Manuel , Soto-Moreno Alfonso , Gálvez-Moreno Ángeles María , Luque Raul M. , Castaño Justo P.

IntroductionCushing’s disease is the result of prolonged exposure to excess cortisol caused by a pituitary tumor, known as corticotropinoma, which hypersecretes adrenocorticotropin (ACTH). Treatment with somatostatin analogs (SSA) has been shown to reduce hormone secretion and, to a lower extent, tumor growth in some subtypes of pituitary tumors, such as growth hormone secreting tumors. However, SSA are commonly ineffective in corticotropinomas. Pre...

ea0073oc9.4 | Oral Communications 9: Endocrine-Related Cancer | ECE2021

Splicing machinery landscape is dysregulated in chronic liver disease: central role of EIF4A3 in hepatocarcinogenesis.

López-Cánovas Juan Luis , Hermán-Sánchez Natalia , Moreno-Montilla María T , del Rio-Moreno Mercedes , Sánchez-Frias Marina E. , Amado Víctor , Ciria Rubén , Briceño Javier , de la Mata Manuel , Castaño Justo P. , Rodriguez-Perálvarez Manuel , Luque Raul M , Gahete Ortiz Manuel

Endocrine-metabolic alterations such as obesity and metabolic syndrome are closely linked to the development of chronic liver diseases, from metabolic-associated fatty liver (MAFLD) to non-alcoholic steatohepatitis (NASH) and hepatocellular carcinoma (HCC). An emerging hallmark of endocrine-metabolic and hepatic diseases is the appearance or altered expression of pathological splicing variants (SVs). In fact, the components of the cellular machinery involved in the splicing pr...

ea0075p18 | Pituitary and neuroendocrinology | EYES2021

A novel molecular subclassification may predict somatostatin analogs response in corticotropinomas

Ibanez-Costa Alejandro , Vazquez-Borrego Mari C. , Moreno-Moreno Paloma , Fuentes-Fayos Antonio C. , Blazquez-Encinas Ricardo , Garcia-Vioque Victor , Moreno Eva Venegas , Garcia Arnes Juan Antonio , Herrera-Martinez Aura D. , Gahete Ortiz Manuel , Soto-Moreno Alfonso , Angeles Galvez-Moreno Maria , Luque Raul M. , Castano Justo P.

Background: Cushing’s disease is the result of prolonged and excessive exposure to cortisol caused by a pituitary tumor. Treatment with somatostatin analogs (SSA), which can reduce hormone secretion and tumor growth in other pituitary tumors (e.g., somatotropinomas), is usually ineffective in corticotropinomas. Previous studies indicated that presence of the truncated SST5TMD4 receptor variant is associated with a lack of response to SSA in acromegaly; but, its presence a...