Integrative analysis of miRNA and mRNA expression profiles in pheochromocytoma and paraganglioma identifies genotype-specific markers and potentially regulated pathways

Aguirre A. De Cubas, L. Javier Leandro-García, Francesca Schiavi, Veronika Mancikova, Iñaki Comino-Méndez, Lucía Inglada-Pérez, Manuel Perez-Martinez, Nuria Ibarz, Pilar Ximénez-Embún, Elena López-Jiménez, Agnieszka Maliszewska, Rocío Letón, Álvaro Gómez Graña, Carmen Bernal, Cristina Álvarez-Escolá, Cristina Rodríguez-Antona, Giuseppe Opocher, Javier Muñoz, Diego Megias, Alberto CascónMercedes Robledo

Research output: Contribution to journalArticle

Abstract

Pheochromocytomas (PCCs) and paragangliomas (PGLs) are rare neuroendocrine neoplasias of neural crest origin that can be part of several inherited syndromes. Although their mRNA profiles are known to depend on genetic background, a number of questions related to tumor biology and clinical behavior remain unanswered. As microRNAs (miRNAs) are key players in the modulation of gene expression, their comprehensive analysis could resolve some of these issues. Through characterization of miRNA profiles in 69 frozen tumors with germline mutations in the genes SDHD , SDHB, VHL, RET, NF1, TMEM127, and MAX, we identified miRNA signatures specific to, as well as common among, the genetic groups of PCCs/PGLs. miRNA expression profiles were validated in an independent series of 30 composed of VHL-, SDHB-, SDHD-, and RET-related formalin-fixed paraffin-embedded PCC/PGL samples using quantitative real-time PCR. Upregulation of miR-210 in VHL- and SDHB-related PCCs/PGLs was verified, while miR-137 and miR-382 were confirmed as generally upregulated in PCCs/PGLs (except in MAX-related tumors). Also, we confirmed overexpression of miR-133b as VHL-specific miRNAs, miR-488 and miR-885-5p as RET-specific miRNAs, and miR-183 and miR-96 as SDHB-specific miRNAs. To determine the potential roles miRNAs play in PCC/PGL pathogenesis, we performed bioinformatic integration and pathway analysis using matched mRNA profiling data that indicated a common enrichment of pathways associated with neuronal and neuroendocrine-like differentiation. We demonstrated that miR-183 and/or miR-96 impede NGF-induced differentiation in PC12 cells. Finally, global proteomic analysis in SDHB and MAX tumors allowed us to determine that miRNA regulation occurs primarily through mRNA degradation in PCCs/PGLs, which partially confirmed our miRNA-mRNA integration results.

Original languageEnglish
Pages (from-to)477-493
Number of pages17
JournalEndocrine-Related Cancer
Volume20
Issue number4
DOIs
Publication statusPublished - Aug 2013

Keywords

  • Differentiation
  • MicroRNA
  • Paraganglioma
  • Pheochromocytoma

ASJC Scopus subject areas

  • Endocrinology
  • Oncology
  • Cancer Research
  • Endocrinology, Diabetes and Metabolism

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  • Cite this

    De Cubas, A. A., Leandro-García, L. J., Schiavi, F., Mancikova, V., Comino-Méndez, I., Inglada-Pérez, L., Perez-Martinez, M., Ibarz, N., Ximénez-Embún, P., López-Jiménez, E., Maliszewska, A., Letón, R., Graña, Á. G., Bernal, C., Álvarez-Escolá, C., Rodríguez-Antona, C., Opocher, G., Muñoz, J., Megias, D., ... Robledo, M. (2013). Integrative analysis of miRNA and mRNA expression profiles in pheochromocytoma and paraganglioma identifies genotype-specific markers and potentially regulated pathways. Endocrine-Related Cancer, 20(4), 477-493. https://doi.org/10.1530/ERC-12-0183