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hrp0084fc1.2 | Adrenal | ESPE2015

Involvement of the Wnt/β-catenin Pathway, SF1, DAX1 and Stem/Progenitor Cell Markers in Paediatric Adrenocortical Tumors

Cavalcanti Marcelo M , Leal Leticia F , Coelli Fernanda B , Scrideli Carlos A , Molina Carlos A F , Tucci Silvio , Martinelli Carlos E , Yunes Jose A , Mastellaro Maria J , Moreira Ayrton C , Ramalho Leandra N , Castro Margaret , Antonini Sonir R

Background: Activation of the Wnt/β-catenin pathway is frequent in adrenocortical tumors (ACTs). This pathway and DAX1, a negative regulator of SF1 expression, control adrenal stem/progenitor cells, which can be involved in ACTs formation.Objective: To analyse the association between the Wnt/β-catenin pathway and the expression of a stem cell marker (NANOG), STAT3, DAX1 and SF1 in ACTs.Methods: Patients:...

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hrp0095fc5.1 | Adrenals and HPA Axis | ESPE2022

Transcriptome profiling of adrenocortical tumors from children with unfavorable disease presentation.

Bueno Ana C , da Silva Jr Rui M P , Stecchini Mônica F , Cardinalli Izilda A , Junqueira Thais , A Scrideli Carlos , AF Molina Carlos , Tucci Silvio , Coeli-Lacchini Fernanda B , Moreira Ayrton C , Ramalho Leandra NZ , Brandalise Silvia R , Yunes José A , Vêncio Ricardo ZN , de Castro Margaret , Antonini Sonir R

Children diagnosed with adrenocortical tumors (ACT) have variable prognosis depending on disease presentation at diagnosis. Available therapeutic options render excellent outcome for a subset of patients, but limited improvement in the survival of those diagnosed with non-localized/advanced disease. ACT DNA methylation was recently demonstrated to be a robust and independent prognostic biomarker. Aiming to identify potential therapeutic targets for these children, we compared ...

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hrp0084lbp-1256 | Late Breaking Posters | ESPE2015

Higher Expression of the Oncogene YAP1, a Wnt/β-Catenin Target, is associated with Poor Outcome in Pediatric Patients with Adrenocortical Tumors

Abduch Rafael H , Bueno Ana Carolina , Leal Leticia F , Cavalcanti Marcelo M , Brandalise Silvia R , Masterallo Maria J , Yunes Jose A , Martinelli Jr Carlos E , Scrideli Carlos A , Tone Luiz G , Tucci Silvio , Moreira Ayrton C , Ramalho Leandra Z , Castro Margaret , Antonini Sonir R

Background: overexpression of the oncogene Yes-associated protein 1 (YAP1), a Hippo pathway target, associates with increased cell proliferation in some human cancers. There is not data on adrenocortical tumors (ACT). YAP1 is a potential target of Wnt/β-catenin pathway, which plays an important role in ACTs.Objective and hypotheses: to evaluate the role of YAP1 and its interaction with the Wnt/β-catenin pathway in ACT.Met...

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ePoster

hrp0094fc1.6 | Adrenal | ESPE2021

Tumor DNA methylation profiling as a prognostic marker for pediatric patients with adrenocortical tumors

Bueno Ana Carolina , da Silva Rui M P , Stecchini Monica F. , Gutierrez Junier M , Cardinalli Izilda A , Scrideli Carlos A , Junqueira Thais , Molina Carlos A F , Ramalho Fernando S , Tucci Silvio , Coeli-Lacchini Fernanda B , Moreira Ayrton C , Ramalho Leandra N Z , Brandalise Silvia R , Yunes Jose A , de Castro Margaret , Vencio Ricardo Z N , Antonini Sonir R ,

Abnormal DNA methylation contributes to tumor progression and is emerging as a prognostic marker in several types of cancers. To investigate whether DNA methylation is associated with pediatric adrenocortical tumor (pACT) presentation and patient prognosis, we analyzed the methylation profile of 57 tumors (MethylationEPIC BeadChip Array-Illumina) and patients clinicopathological features and outcome. The study comprehended 40 girls and 17 boys, with median age at diagnos...

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hrp0097p1-399 | Adrenals and HPA Axis | ESPE2023

Transcriptome profiling evaluation of pediatric adrenocortical tumors (pACT) reveals a favorable-prognosis transcription signature and potential therapeutic targets.

Carolina Bueno Ana , Milton P da Silva Jr Rui , F Stecchini Mônica , Marrero-Gutiérrez Junier , A Cardinalli Izilda , Junqueira Tais , A Scrideli Carlos , AF Molina Carlos , Tucci Silvio , B Coeli-Lacchini Fernanda , C Moreira Ayrton , NZ Ramalho Leandra , R Brandalise Silvia , A Yunes Jose , ZN Vêncio Ricardo , de Castro Margaret , R Antonini Sonir

Aim: To uncover a feasible tumor expression prognostic signature and potential therapeutic targets for children with pACT.Methods: Tumor RNAseq from 53 pACT children (70% girls, median age: 1.7yrs) was performed (Illumina). Using a robust, state-of-the-art, differential gene expression analysis pipeline, differentially expressed genes (DEGs: adjusted P<0.05 and |log2 fold-change|>1) were identified (DESeq2...

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ESPE Abstracts

Involvement of the Wnt/β-catenin Pathway, SF1, DAX1 and Stem/Progenitor Cell Markers in Paediatric Adrenocortical Tumors

Transcriptome profiling of adrenocortical tumors from children with unfavorable disease presentation.

Higher Expression of the Oncogene YAP1, a Wnt/β-Catenin Target, is associated with Poor Outcome in Pediatric Patients with Adrenocortical Tumors

Tumor DNA methylation profiling as a prognostic marker for pediatric patients with adrenocortical tumors

Transcriptome profiling evaluation of pediatric adrenocortical tumors (pACT) reveals a favorable-prognosis transcription signature and potential therapeutic targets.

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