Gene expression and cell growth are modified by silencing SUMO2 and SUMO3 expression.

Journal Article (Journal Article)

Small ubiquitin-like modifier (SUMO) is a group of proteins binding to lysine residues of target proteins and thereby modifying their stability, activity and subcellular localization. Here we report that blocking SUMO2 and SUMO3 conjugation by silencing their expression markedly modifies gene expression. A microRNA-based RNAi system was used to specifically silence SUMO2 and SUMO3 expression simultaneously and stably transfected neuroblastoma B35 cells expressing dual SUMO2/3 microRNA were created. In cells stably expressing SUMO2/3 microRNA, mRNA levels of 105 and 58 known genes were significantly up- and down-regulated, respectively. About 20% of differentially regulated genes were associated with pathways involved in cell growth and differentiation. Cell division was significantly suppressed in SUMO2/3 miRNA expressing cells. Elucidating what effect the silencing of SUMO2/3 expression has on gene expression will help to identify the impact of SUMO2/3 conjugation on the various cellular pathways.

Full Text

Duke Authors

Cited Authors

  • Yang, W; Paschen, W

Published Date

  • April 24, 2009

Published In

Volume / Issue

  • 382 / 1

Start / End Page

  • 215 - 218

PubMed ID

  • 19275883

Electronic International Standard Serial Number (EISSN)

  • 1090-2104

Digital Object Identifier (DOI)

  • 10.1016/j.bbrc.2009.03.013


  • eng

Conference Location

  • United States