Quick Search:

uzh logo
Browse by:
bullet
bullet
bullet
bullet

Zurich Open Repository and Archive

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-50514

Schraivogel, D; Weinmann, L; Beier, D; Tabatabai, G; Eichner, A; Zhu, J Y; Anton, M; Sixt, M; Weller, M; Beier, C P; Meister, G (2011). CAMTA1 is a novel tumour suppressor regulated by miR-9/9(*) in glioblastoma stem cells. The EMBO Journal, 30(20):4309-4322.

[img]
Preview
Accepted Version
PDF
7MB

View at publisher

Abstract

Cancer stem cells or cancer initiating cells are believed to contribute to cancer recurrence after therapy. MicroRNAs (miRNAs) are short RNA molecules with fundamental roles in gene regulation. The role of miRNAs in cancer stem cells is only poorly understood. Here, we report miRNA expression profiles of glioblastoma stem cell-containing CD133(+) cell populations. We find that miR-9, miR-9(*) (referred to as miR-9/9(*)), miR-17 and miR-106b are highly abundant in CD133(+) cells. Furthermore, inhibition of miR-9/9(*) or miR-17 leads to reduced neurosphere formation and stimulates cell differentiation. Calmodulin-binding transcription activator 1 (CAMTA1) is a putative transcription factor, which induces the expression of the anti-proliferative cardiac hormone natriuretic peptide A (NPPA). We identify CAMTA1 as an miR-9/9(*) and miR-17 target. CAMTA1 expression leads to reduced neurosphere formation and tumour growth in nude mice, suggesting that CAMTA1 can function as tumour suppressor. Consistently, CAMTA1 and NPPA expression correlate with patient survival. Our findings could provide a basis for novel strategies of glioblastoma therapy.

Citations

37 citations in Web of Science®
43 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

269 downloads since deposited on 04 Nov 2011
138 downloads since 12 months

Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Neurology
DDC:610 Medicine & health
Language:English
Date:2011
Deposited On:04 Nov 2011 12:23
Last Modified:29 Nov 2013 13:39
Publisher:Nature Publishing Group
ISSN:0261-4189
Publisher DOI:10.1038/emboj.2011.301
PubMed ID:21857646

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page