Publications by authors named "Giusy Coppolino"

One of the most substantial and established environmental risk factors for neurological and psychiatric disorders is stress exposure, whose detrimental consequences hinge on several variables including time. In this regard the gestational period is known to present an intrinsic vulnerability to environmental insults and thus stressful events during pregnancy can lead to severe consequences on the offspring's brain development with long-term repercussions throughout adulthood. On this basis, we investigated the long-lasting impact of prenatal stress exposure on the susceptibility to the experimental autoimmune encephalomyelitis (EAE), a well-established murine model of multiple sclerosis.

View Article and Find Full Text PDF
Article Synopsis
  • The GPR17 receptor, found on oligodendroglial precursors, is a promising target for developing treatments that promote myelin production in multiple sclerosis (MS).
  • Researchers screened over 1,000,000 compounds to find selective agents that can activate GPR17, going through a multi-step testing and refinement process.
  • One promising compound, galinex, was shown to significantly delay the onset of experimental autoimmune encephalomyelitis (EAE), supporting the effectiveness of their drug discovery approach for discovering new MS treatments.
View Article and Find Full Text PDF
Article Synopsis
  • Promoting remyelination is a new strategy for treating neurodegenerative diseases like multiple sclerosis, and the receptor GPR17 has been identified as a promising target that needs to be downregulated for oligodendrocyte precursors to mature.
  • Researchers used a special mouse model to study the behavior of GPR17 cells in two different demyelination scenarios: experimental autoimmune encephalomyelitis (EAE) with inflammation, and cuprizone induced demyelination.
  • Findings showed that in the cuprizone model, GPR17 cells effectively matured into oligodendrocytes to repair myelin, while in the EAE model, the presence of inflammation blocked this process, suggesting that combining remyel
View Article and Find Full Text PDF

In 2006, cells heterologously expressing the "orphan" receptor GPR17 were shown to acquire responses to both uracil nucleotides and cysteinyl-leukotrienes, two families of signaling molecules accumulating in brain or heart as a result of hypoxic/traumatic injuries. In subsequent years, evidence of GPR17 key role in oligodendrogenesis and myelination has highlighted it as a "model receptor" for new therapies in demyelinating and neurodegenerative diseases. The apparently contrasting evidence in the literature about the role of GPR17 in promoting or inhibiting myelination can be due to its transient expression in the intermediate stages of differentiation, exerting a pro-differentiating function in early oligodendrocyte precursor cells (OPCs), and an inhibitory role in late stage maturing cells.

View Article and Find Full Text PDF

In the mature central nervous system (CNS), oligodendrocytes provide support and insulation to axons thanks to the production of a myelin sheath. During their maturation to myelinating cells, oligodendroglial precursors (OPCs) follow a very precise differentiation program, which is finely orchestrated by transcription factors, epigenetic factors and microRNAs (miRNAs), a class of small non-coding RNAs involved in post-transcriptional regulation. Any alterations in this program can potentially contribute to dysregulated myelination, impaired remyelination and neurodegenerative conditions, as it happens in multiple sclerosis (MS).

View Article and Find Full Text PDF

Recent data and publications suggest a promiscuous behaviour for GPR17, a class-A GPCR operated by different classes of ligands, such as uracil nucleotides, cysteinyl-leukotrienes and oxysterols. This observation, together with the ability of several class-A GPCRs to form homo- and hetero-dimers, is likely to unveil new pathophysiological roles and novel emerging pharmacological properties for some of these GPCRs, including GPR17. This receptor shares structural, phylogenetic and functional properties with some chemokine receptors, CXCRs.

View Article and Find Full Text PDF

Objective: To study concentrations of adipokines in patients with systemic lupus erythematosus (SLE) and the relationship among adipokines, the metabolic syndrome (MeS), and cardiovascular disease (CVD) risk factors.

Methods: We enrolled 50 SLE patients and 26 controls, all women. Leptin, resistin, visfatin, and adiponectin were measured by commercial ELISA kits.

View Article and Find Full Text PDF

Background: To compare tumor necrosis in hepatoma induced in rats by a single percutaneous injection of ethanol (PEI) or acetic acid (PAI).

Methods: BW7756 hepatomas of 1 mm3 were implanted in the liver of 40 male healthy rats. After 14 days, the 36 surviving rats were treated, in a single session, by ultrasound-guided injection of 300 microl of 95% ethanol (n = 17) or 100 microl of 50% acetic acid (n = 19).

View Article and Find Full Text PDF

Objective: To evaluate the metabolic effect of buccal spray insulin compared with subcutaneous regular insulin in patients with type 1 diabetes.

Research Design And Methods: This study compared plasma glucose, insulin, and C-peptide levels in 18 patients with type 1 diabetes treated with subcutaneous regular or buccal spray insulin on 2 consecutive mornings. On day 1, patients were treated with their usual subcutaneous regular insulin regimens.

View Article and Find Full Text PDF

In a pilot study, the metabolic effects of continuous subcutaneous insulin infusion (CSII) versus intensive subcutaneous insulin therapy (ISIT) started at diagnosis in patients with Type 1 diabetes and continued for a 2-year period were evaluated and compared. Twenty-three patients (between 12 and 35 years old, mean +/- SD 18.4 +/- 9 years) were randomized into two treatment groups (CSII vs.

View Article and Find Full Text PDF