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Review
. 2021 Mar;37(3):789-797.
doi: 10.1007/s00381-020-04750-z. Epub 2020 Jul 2.

Adamantinomatous craniopharyngioma: advances in proteomic research

Claudia Desiderio  1 , Diana Valeria Rossetti  2   3 , Massimo Castagnola  4 , Luca Massimi  5 , Gianpiero Tamburrini  6
Affiliations
Review

Adamantinomatous craniopharyngioma: advances in proteomic research

Claudia Desiderio et al. Childs Nerv Syst. 2021 Mar.

Abstract

Background: Many efforts have been performed in the last decade to accomplish the genomic and proteomic characterization of pediatric adamantinomatous craniopharyngioma with the purpose to elucidate the molecular mechanisms underlying the onset and development of this pediatric brain tumor, its high recurrence rate, and, although classified as a histologically benign neoplasm, its aggressive behavior.

Methods: The focus of this review is to perform the new comparison of the proteomic profiles of the solid component and the intracystic fluid of adamantinomatous craniopharyngioma based on our previous results, obtained by both the top-down and the bottom-up proteomic approaches, to disclose differences and similarities, and to discuss the results in the context of the most recent literature.

Results and conclusions: Proteins and peptides identified in the cyst fluid and in the solid component of adamantinomatous craniopharyngioma (AC) include beyond markers of inflammation (i.e., alpha-defensins), proteins involved in cell migration and protein degradation (i.e., beta-thymosin and ubiquitin peptides), whose main role might be in tumor growth and infiltration of the surrounding neural structures. These last appeared different in the solid components compared with the cyst fluid, missing their terminal part in the solid tissue, a feature generally associated to malignancies, which might represent a distinct molecular site for an aggressive behavior of AC.

Keywords: Adamantinomatous craniopharyngioma; Pediatric brain tumor; Proteomics.

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