Endocrine Abstracts

Background: Heart failure (HF) has a rising incidence and is one of the most prevalent diseases worldwide. Serum NT-proBNP and systolic ejection fraction correlate with the severity and prognosis of this condition. The nutritional evaluation of patients with HF, who usually have normal weight, overweight or obesity, has acquired a novel approach due to the incorporation of novel techniques (bioelectrical impedance, nutritional ultrasonography), and functional tests.<p clas...

Intracranial tumors (IT) comprise a heterogenous group of neoplasias (e.g., pituitary/brain tumors and craniopharyngiomas), characterized by difficult diagnosis based on MRI, challenging prognostic predictors and lack of effective therapeutic strategies. In addition, these tumors are usually associated with neurological disorders and severe comorbidities (e.g., those associated with Cushing syndrome, Acromegaly, etc.), worsening the quality life of patients. In this context, s...

Emerging evidence indicates that the cellular machinery controlling the splicing process (spliceosome) is altered in several tumour types, leading to oncogenic splicing events associated with tumour progression and aggressiveness. However, whether this molecular phenomenon also occurs in thyroid cancer has not been yet explored. Therefore, our main aim was to explore the potential dysregulation of the expression of relevant spliceosome components and splicing factors in clinic...

Objective: To describe the characteristics, survival and prognostic factors of a cohort of patients with bone metastases (BM) of differentiated thyroid carcinoma (DTC).Methods: Multicenter retrospective observational study. Patients diagnosed with DTC and BM between 1980-2021 were included. A Cox regression was performed to study prognostic factors for 5- and 10-year survival. Kaplan-Meier and log-rank tests were performed for survival analysis and compa...

Objective and methods: Recent studies suggest that altered alternative splicing and, consequently, appearance of an abnormal splicing pattern and even of aberrant/oncogenic splicing-variants, represent a common molecular feature of most tumor pathologies, including Pituitary Neuroendocrine Tumors (PitNETs). However, the putative alteration, pathophysiological role and potential therapeutic utility of splicing machinery components [i.e. spliceosome-components (SCs) and splicing...

Dysregulation of the splicing machinery is emerging as a novel cancer hallmark due to its association with multiple dysfunctions in tumor cells. An inappropriate function of the components of this machinery (spliceosome) could be primarily linked with the generation of tumor-associated aberrant splicing variants. In line with this, we have previously reported that overexpression of aberrantly spliced variants of somatostatin receptor 5 (sst5TMD4) and ghrelin (In1-ghrelin) is d...

: Prostate cancer (PCa) is the most common cancer among men in developed countries. Unfortunately, the heterogeneity of this malignancy hinders the finding of new biomarkers and therapeutic tools. A potential factor contributing to PCa is alternative splicing, which can generate the appearance of oncogenic variants involved in PCa aggressiveness. Thus, we hypothesized that the alteration of the splicing machinery (spliceosome components and splicing factors (SFs)) could be ass...

Non-functioning pituitary-adenomas (NFPAs) represent the most common pituitary tumor-type. To date, there are not clinical, biochemical, anatomo-pathological, immuno-histochemical or molecular parameters useful to predict their remission. Therefore, the aim of this study was to evaluate the potential relationship between the clinical, biochemical and pathological characteristics of patients with NFPAs, the expression profile of these tumours and the clinical outcomes during th...

Pituitary adenomas (PA) comprise a commonly underestimated pathology in terms of incidence and associated morbimortality. To date, somatostatin and dopamine analogs represent the main medical treatment, but an appreciable subset of patients are resistant or poorly responsive to these drugs. Therefore, the search for new approaches to control tumor growth and/or hormone secretion is crucial. Biguanides such as metformin (MF; commonly used to treat type-2 diabetes), phenformin (...

Somatostatin is a pleiotropic neuropeptide that governs multiple biological targets, including tumor cell function, through a family of G protein-coupled receptors with 7-transmembrane domains (TMD), named sst1-5. However, we recently discovered sst5TMD4, an aberrantly spliced, truncated (only 4-TMDs) sst5-variant displaying unique molecular/functional features. sst5TM4 is overexpressed in various endocrine-related tumors exacerbating their malignant characteristics. Here, we ...