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The miR-17-92 MicroRNA Cluster Regulates Multiple Components of the TGF-beta Pathway in Neuroblastoma

In English

Författare

  • Pieter Mestdagh
  • Anna-Karin Boström
  • Francis Impens
  • Erik Fredlund
  • Gert Van Peer
  • Pasqualino De Antonellis
  • Kristoffer von Stedingk
  • Bart Ghesquiere
  • Stefanie Schulte
  • Michael Dews
  • Andrei Thomas-Tikhonenko
  • Johannes H. Schulte
  • Massimo Zollo
  • Alexander Schramm
  • Kris Gevaert
  • Håkan Axelson
  • Frank Speleman
  • Jo Vandesompele
Visa allt

Summary, in English

The miR-17-92 microRNA cluster is often activated in cancer cells, but the identity of its targets remains elusive. Using SILAC and quantitative mass spectrometry, we examined the effects of activation of the miR-17-92 cluster on global protein expression in neuroblastoma (NB) cells. Our results reveal cooperation between individual miR-17-92 miRNAs and implicate miR-17-92 in multiple hallmarks of cancer, including proliferation and cell adhesion. Most importantly, we show that miR-17-92 is a potent inhibitor of TGF-beta signaling. By functioning both upstream and downstream of pSMAD2, miR-17-92 activation triggers downregulation of multiple key effectors along the TGF-beta signaling cascade as well as direct inhibition of TGF-beta-responsive genes.

Publiceringsår

2010

Språk

Engelska

Sidor

762-773

Publikation/Tidskrift/Serie

Molecular Cell

Volym

40

Issue

5

Dokumenttyp

Artikel i tidskrift

Förlag

Cell Press

Ämne

  • Cancer and Oncology

Status

Published

Forskningsgrupp

  • Kidney cancer research group

ISBN/ISSN/Övrigt

  • ISSN: 1097-4164