The microRNA effector RNA-induced silencing complex in hidradenitis suppurativa: a significant dysregulation within active inflammatory lesions.

Abstract:

:Recently, we could show that the expression levels of the key regulators of the microRNA (miRNA) maturation and transport were dysregulated in inflamed hidradenitis suppurativa (HS) tissue (Heyam et al. in Wiley Interdiscip Rev RNA 6:271-289, 2015). The RNA-induced silencing complex (RISC) is the central element of the miRNA pathway and regulates miRNA formation and function. We investigated the expression of the RISC components, namely transactivation-responsive RNA-binding protein-1 (TRBP1), TRBP2, protein activator (PACT) of the interferon-induced protein kinase R, Argonaute RISC Catalytic Component-1 (AGO1) and Component-2 (AGO2), metadherin, and staphylococcal nuclease and Tudor domain-containing-1 (SND1) in inflamed HS tissue compared to healthy and psoriatic controls by real-time reverse transcription polymerase chain reaction. Expression levels of all investigated components were significantly lower in lesional HS skin (n = 18) compared to healthy controls (n = 10). TRBP1, PACT, AGO1, AGO2, and SND1 expression levels were significantly down-regulated in lesional HS skin compared to healthy-appearing perilesional skin (n = 7). TRBP2 and SND1 expression levels were significantly lower in healthy-appearing perilesional skin compared to healthy controls. In lesional HS skin, expression levels of PACT, AGO1, and AGO2 were significantly lower compared to psoriatic skin (n = 10). In summary, our data showed that all investigated components of RISC are dysregulated in the skin of HS patients, providing support for the hypothesis that miRNAs may have a pathological role in the inflammatory pathogenesis of HS.

journal_name

Arch Dermatol Res

authors

Hessam S,Sand M,Skrygan M,Bechara FG

doi

10.1007/s00403-017-1752-1

subject

Has Abstract

pub_date

2017-09-01 00:00:00

pages

557-565

issue

7

eissn

0340-3696

issn

1432-069X

pii

10.1007/s00403-017-1752-1

journal_volume

309

pub_type

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