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Title

Integrated miRNA and mRNA expression profiling identifies novel targets and pathological mechanisms in autoimmune thyroid diseases

AuthorsMartínez-Hernández, Rebeca ; Serrano-Somavilla, Ana; Ramos-Leví, Ana; Sampedro-Nuñez, Miguel; Lens-Pardo, Alberto; Muñoz De Nova, José Luis; Triviño, Juan Carlos; González Sagardoy, María Ujué CSIC ORCID ; Torné, Lorena CSIC; Casares-Arias, Javier CSIC; Martín-Cófreces, Noa B.; Sánchez-Madrid, Francisco; Marazuela, Mónica
KeywordsmicroRNAs
mRNA
Next generation sequencing
Autoimmune thyroid disease
Graves’ disease
Hashimoto's thyroiditis
Cilia
Issue DateDec-2019
PublisherElsevier BV
CitationEBioMedicine 50: 329-342 (2019)
Abstract[Background] The mechanisms underlying autoimmune thyroid disease (AITD) remain elusive. Identification of such mechanisms would reveal novel and/or better therapeutic targets. Here, we use integrated analysis of miRNAs and mRNAs expression profiling to identify potential therapeutic targets involved in the mechanisms underlying AITD.
[Methods] miRNA and mRNA from twenty fresh-frozen thyroid tissues (15 from AITD patients and 5 from healthy controls) were subjected to next-generation sequencing. An anti-correlated method revealed potential pathways and disease targets, including proteins involved in the formation of primary cilia. Thus, we examined the distribution and length of primary cilia in thyroid tissues from AITD and controls using immunofluorescence and scanning electron microscopy, and parsed cilia formation in thyroid cell lines in response to inflammatory stimuli in the presence of miRNA mimics.
[Findings] We found that the expression of miR-21-5p, miR-146b-3p, miR-5571-3p and miR-6503-3p was anti-correlated with Enolase 4 (ENO4), in-turned planar cell polarity protein (INTU), kinesin family member 27 (KIF27), parkin co-regulated (PACRG) and serine/threonine kinase 36 (STK36) genes. Functional classification of these miRNA/mRNAs revealed that their differential expression was associated with cilia organization. We demonstrated that the number and length of primary cilia in thyroid tissues was significantly lower in AITD than in control (frequency of follicular ciliated cells in controls = 67.54% vs a mean of 22.74% and 21.61% in HT and GD respectively p = 0.0001, by one-way ANOVA test). In addition, pro-inflammatory cytokines (IFNγ and TNFα) and specific miRNA mimics for the newly identified target genes affected cilia appearance in thyroid cell lines.
[Interpretation] Integrated miRNA/gene expression analysis has identified abnormal ciliogenesis as a novel susceptibility pathway that is involved in the pathogenesis of AITD. These results reflect that ciliogenesis plays a relevant role in AITD, and opens research pathways to design therapeutic targets in AITD.
Publisher version (URL)https://doi.org/10.1016/j.ebiom.2019.10.061
URIhttp://hdl.handle.net/10261/197715
DOIhttp://dx.doi.org/10.1016/j.ebiom.2019.10.061
E-ISSN2352-3964
Appears in Collections:(CBM) Artículos
(IMN-CNM) Artículos
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