Integration of transcriptomics, proteomics, and microRNA analyses reveals novel microrna regulation of targets in the mammalian inner ear

Tal Elkan-Miller, Igor Ulitsky, Ronna Hertzano, Anya Rudnicki, Amiel A. Dror, Danielle R. Lenz, Ran Elkon, Martin Irmler, Johannes Beckers, Ron Shamir, Karen B. Avraham

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء

ملخص

We have employed a novel approach for the identification of functionally important microRNA (miRNA)-target interactions, integrating miRNA, transcriptome and proteome profiles and advanced in silico analysis using the FAME algorithm. Since miRNAs play a crucial role in the inner ear, demonstrated by the discovery of mutations in a miRNA leading to human and mouse deafness, we applied this approach to microdissected auditory and vestibular sensory epithelia. We detected the expression of 157 miRNAs in the inner ear sensory epithelia, with 53 miRNAs differentially expressed between the cochlea and vestibule. Functionally important miRNAs were determined by searching for enriched or depleted targets in the transcript and protein datasets with an expression consistent with the dogma of miRNA regulation. Importantly, quite a few of the targets were detected only in the protein datasets, attributable to regulation by translational suppression. We identified and experimentally validated the regulation of PSIP1-P75, a transcriptional co-activator previously unknown in the inner ear, by miR-135b, in vestibular hair cells. Our findings suggest that miR-135b serves as a cellular effector, involved in regulating some of the differences between the cochlear and vestibular hair cells.

اللغة الأصليةالإنجليزيّة
رقم المقالe18195
عدد الصفحات12
دوريةPLoS ONE
مستوى الصوت6
رقم الإصدار4
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 5 أبريل 2011

All Science Journal Classification (ASJC) codes

  • !!General

بصمة

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