hrp0089fc4.2 | GH & IGFs | ESPE2018

Effects of IGF-1R Nuclear Localization in Glioblastoma Cells

Martin Ayelen , Clement Florencia , Venara Marcela , Bergada Ignacio , Gutierrez Mariana , Pennisi Patricia

Background: CNS tumors are the most frequent solid tumors in pediatric population. The IGF system of ligands and receptors are known to play an important role in both normal and neoplastic growth. Recently, we have shown that in paediatric gliomas, IGF-1R nuclear localization was significantly associated with both high grade tumours and increased risk of death, suggesting that nuclear IGF-1R localization may contribute to an aggressive behaviour of these tumours.<p class="...

hrp0082fc5.5 | Neuroendocrinology | ESPE2014

Characterization of IGFI Receptor Expression and Localization in Paediatric Gliomas Upon Diagnosis According to WHO 2007 Grading

Clement Florencia , Venara Marcela , Maglio Silvana , Martin Ayelen , Matho Cecilia , Petre Cesar , Lombardi Mercedes Garcia , Bergada Ignacio , Pennisi Patricia

Background: Gliomas are the most common subgroup of CNS tumours in children. Histologic grading is a means of predicting the biological behavior of these tumours and survival is strongly correlated with tumour gradation. The IGF system of ligands and receptors are known to play an important role in both normal and neoplastic growth. Recently, nuclear translocation of the type 1 IGF1R has been demonstrated in tumour tissues. Although the IGF1R expression has been described in C...

hrp0092fc14.1 | GH and IGF1 | ESPE2019

Inhibition of IGF1R by IGF1R/IR Inhibitor OSI906 as a Targeted Therapy for Glioblastoma: in vitro & in vivo Studies

Fernandez Maria Celia , Martin Ayelen , Clément Florencia , Venara Marcela , Fernanda Castro Julia , Lombardi Mercedes Garcia , Bergadá Ignacio , Pennisi Patricia

Background: CNS tumours are the most frequent solid tumours in children. In pediatric gliomas, IGF1R nuclear localization was significantly associated with both high grade tumours and increased risk of death and contributed to the aggressive phenotype of glioblastoma by increasing motility and metabolism of tumour cells rather than increasing its proliferation. For children chemotherapy after surgical resection is the mainstay of therapy. However, the best reg...

hrp0092p1-359 | GH and IGFs (2) | ESPE2019

Insulin-Like Growth Factor 2 in Pediatric Gliomas: Expression, Intracellular Localization and Association with Clinical Outcome

Clément Florencia , Martin Ayelen , Venara Marcela , Fernández María Celia , Lombardi Mercedes García , Bergadá Ignacio , Pennisi Patricia

Background and Aim: Gliomas are the most frequent solid tumors in pediatric population. The IGF system of ligands and receptors are known to play an important role in both normal and neoplastic growth. In a previous work we have reported the quantitation of some components of the IGFs system in SNC pediatric tumours (IGF-1, IGF-2, IGF-1R, IR), being IGF-2 expression the most variable among all the genes studied.Our aim w...

hrp0086p2-p932 | Thyroid P2 | ESPE2016

Multinodular Goiter and Differentiated Thyroid Cancer in Pediatrics

Papendieck Patricia , Venara Marcela , Elias Eugenia , Cozzani Hugo , Mateos Fernanda , Maglio Silvana , de Lujan Calcagno Maria , Gruneiro-Papendieck Laura , Bergada Ignacio , Chiesa Ana

Background: In a recent report we have identified multinodular goiter (MNG) as a condition with an increased risk for thyroid malignancy in children and adolescents.Objective and hypotheses: To report the prevalence and characterization of a prospectively and uniformly followed cohort of pediatric patients with MNG and to retrospectively analyze differences between benign and malignant MNG before surgery in order to identify malignancy predictors.<p ...