ID

45929

Description

Principal Investigator: Julien Sage, PhD, Departments of Pediatrics and Genetics, Stanford University, Stanford, CA, USA MeSH: Fibrolamellar hepatocellular carcinoma,Carcinoma, Hepatocellular https://www.ncbi.nlm.nih.gov/projects/gap/cgi-bin/study.cgi?study_id=phs000828 Fibrolamellar hepatocellular carcinoma (FL-HCC) is a very rare and distinct subtype of hepatocellular carcinoma that occurs in the previously healthy livers of adolescents and young adults. The low incidence rate has kept FL-HCC an understudied cancer, thus the list of FL-HCC markers is limited and the genetic alterations driving its growth have remained unknown. In order to gain a better understanding of the molecular mechanisms underlying FL-HCC initiation and progression, we performed an in-depth genomic analyses of one tumor followed by immunohistochemistry validation on seven other tumors. We showed the expression of neuroendocrine markers in FL-HCC. In addition, DNA/RNA sequencing revealed that common cancer pathways are not visibly altered in FL-HCC but identified two novel structural variants, both resulting in fusion transcripts. Through in vitro studies, we demonstrated the oncogenic properties of these fusion transcripts. These experiments further highlight the tumorigenic role of gene fusions in the etiology of pediatric solid tumors and identify both candidate biomarkers and possible therapeutic targets for this lethal pediatric disease.

Lien

dbGaP study id = phs000828

Mots-clés

Versions (1)

1. 04/03/2024 04/03/2024 - Dr. Christian Niklas

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Julien Sage, PhD, Departments of Pediatrics and Genetics, Stanford University, Stanford, CA, USA

Téléchargé le

4 mars 2024

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