A multifunctional protein EWS regulates the expression of Drosha and microRNAs

K. Y. Kim, Y. J. Hwang, M. K. Jung, J. Choe, Y. Kim, S. Kim, C. J. Lee, H. Ahn, J. Lee, N. W. Kowall, Yoon Ki Kim, J. I. Kim, S. B. Lee, H. Ryu

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

EWS (Ewing's Sarcoma) gene encodes an RNA/DNA-binding protein that is ubiquitously expressed and involved in various cellular processes. EWS deficiency leads to impaired development and early senescence through unknown mechanisms. We found that EWS regulates the expression of Drosha and microRNAs (miRNAs). EWS deficiency resulted in increased expression of Drosha, a well-known microprocessor, and increased levels of miR-29b and miR-18b. Importantly, miR-29b and miR-18b were directly involved in the post-transcriptional regulation of collagen IV alpha 1 (Col4a1) and connective tissue growth factor (CTGF) in EWS knock-out (KO) mouse embryonic fibroblast cells. The upregulation of Drosha, miR-29b and miR-18b and the sequential downregulation of Col4a1 and CTGF contributed to the deregulation of dermal development in EWS KO mice. Otherwise, knockdown of Drosha rescued miRNA-dependent downregulation of Col4a1 and CTGF proteins. Taken together, our data indicate that EWS is involved in post-transcriptional regulation of Col4a1 and CTGF via a Drosha-miRNA-dependent pathway. This finding suggests that EWS has a novel role in dermal morphogenesis through the modulation of miRNA biogenesis.

Original languageEnglish
Pages (from-to)136-145
Number of pages10
JournalCell Death and Differentiation
Volume21
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Ewing's Sarcoma
MicroRNAs
Connective Tissue Growth Factor
Proteins
Knockout Mice
Down-Regulation
Skin
RNA-Binding Proteins
DNA-Binding Proteins
Microcomputers
Morphogenesis
Up-Regulation
Collagen
Fibroblasts

Keywords

  • CTGF
  • dermal development
  • Drosha
  • EWS
  • microRNA

ASJC Scopus subject areas

  • Cell Biology
  • Molecular Biology

Cite this

Kim, K. Y., Hwang, Y. J., Jung, M. K., Choe, J., Kim, Y., Kim, S., ... Ryu, H. (2014). A multifunctional protein EWS regulates the expression of Drosha and microRNAs. Cell Death and Differentiation, 21(1), 136-145. https://doi.org/10.1038/cdd.2013.144

A multifunctional protein EWS regulates the expression of Drosha and microRNAs. / Kim, K. Y.; Hwang, Y. J.; Jung, M. K.; Choe, J.; Kim, Y.; Kim, S.; Lee, C. J.; Ahn, H.; Lee, J.; Kowall, N. W.; Kim, Yoon Ki; Kim, J. I.; Lee, S. B.; Ryu, H.

In: Cell Death and Differentiation, Vol. 21, No. 1, 01.01.2014, p. 136-145.

Research output: Contribution to journalArticle

Kim, KY, Hwang, YJ, Jung, MK, Choe, J, Kim, Y, Kim, S, Lee, CJ, Ahn, H, Lee, J, Kowall, NW, Kim, YK, Kim, JI, Lee, SB & Ryu, H 2014, 'A multifunctional protein EWS regulates the expression of Drosha and microRNAs', Cell Death and Differentiation, vol. 21, no. 1, pp. 136-145. https://doi.org/10.1038/cdd.2013.144
Kim, K. Y. ; Hwang, Y. J. ; Jung, M. K. ; Choe, J. ; Kim, Y. ; Kim, S. ; Lee, C. J. ; Ahn, H. ; Lee, J. ; Kowall, N. W. ; Kim, Yoon Ki ; Kim, J. I. ; Lee, S. B. ; Ryu, H. / A multifunctional protein EWS regulates the expression of Drosha and microRNAs. In: Cell Death and Differentiation. 2014 ; Vol. 21, No. 1. pp. 136-145.
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