microRNAs as biomarkers in Pompe disease

Antonietta Tarallo, Annamaria Carissimo, Francesca Gatto, Edoardo Nusco, Antonio Toscano, Olimpia Musumeci, Marcella Coletta, Marianthi Karali, Emma Acampora, Carla Damiano, Nadia Minopoli, Simona Fecarotta, Roberto Della Casa, Tiziana Mongini, Liliana Vercelli, Lucio Santoro, Lucia Ruggiero, Federica Deodato, Roberta Taurisano, Bruno BembiAndrea Dardis, Sandro Banfi, W W Pim Pijnappel, Ans T van der Ploeg, Giancarlo Parenti

Research output: Contribution to journalArticlepeer-review

Abstract

PURPOSE: We studied microRNAs as potential biomarkers for Pompe disease.

METHODS: We analyzed microRNA expression by small RNA-seq in tissues from the disease murine model at two different ages (3 and 9 months), and in plasma from Pompe patients.

RESULTS: In the mouse model we found 211 microRNAs that were differentially expressed in gastrocnemii and 66 in heart, with a different pattern of expression at different ages. In a preliminary analysis in plasma from six patients 55 microRNAs were differentially expressed. Sixteen of these microRNAs were common to those dysregulated in mouse tissues. These microRNAs are known to modulate the expression of genes involved in relevant pathways for Pompe disease pathophysiology (autophagy, muscle regeneration, muscle atrophy). One of these microRNAs, miR-133a, was selected for further quantitative real-time polymerase chain reaction analysis in plasma samples from 52 patients, obtained from seven Italian and Dutch biobanks. miR-133a levels were significantly higher in Pompe disease patients than in controls and correlated with phenotype severity, with higher levels in infantile compared with late-onset patients. In three infantile patients miR-133a decreased after start of enzyme replacement therapy and evidence of clinical improvement.

CONCLUSION: Circulating microRNAs may represent additional biomarkers of Pompe disease severity and of response to therapy.

Original languageEnglish
Number of pages10
JournalGenetics in Medicine
DOIs
Publication statusE-pub ahead of print - Jul 12 2018

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