MicroRNA-34c inversely couples the biological functions of the runt-related transcription factor RUNX2 and the tumor suppressor p53 in osteosarcoma.
Standard
MicroRNA-34c inversely couples the biological functions of the runt-related transcription factor RUNX2 and the tumor suppressor p53 in osteosarcoma. / van der Deen, Margaretha; Taipaleenmäki, Hanna; Zhang, Ying; Teplyuk, Nadiya M; Gupta, Anurag; Cinghu, Senthilkumar; Shogren, Kristen; Maran, Avudaiappan; Yaszemski, Michael J; Ling, Ling; Cool, Simon M; Leong, David T; Dierkes, Christian; Zustin, Josef; Salto-Tellez, Manuel; Ito, Yoshiaki; Bae, Suk-Chul; Zielenska, Maria; Squire, Jeremy A; Lian, Jane B; Stein, Janet L; Zambetti, Gerard P; Jones, Stephen N; Galindo, Mario; Hesse, Eric; Stein, Gary S; van Wijnen, Andre J.
in: J BIOL CHEM, Jahrgang 288, Nr. 29, 29, 2013, S. 21307-21319.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - JOUR
T1 - MicroRNA-34c inversely couples the biological functions of the runt-related transcription factor RUNX2 and the tumor suppressor p53 in osteosarcoma.
AU - van der Deen, Margaretha
AU - Taipaleenmäki, Hanna
AU - Zhang, Ying
AU - Teplyuk, Nadiya M
AU - Gupta, Anurag
AU - Cinghu, Senthilkumar
AU - Shogren, Kristen
AU - Maran, Avudaiappan
AU - Yaszemski, Michael J
AU - Ling, Ling
AU - Cool, Simon M
AU - Leong, David T
AU - Dierkes, Christian
AU - Zustin, Josef
AU - Salto-Tellez, Manuel
AU - Ito, Yoshiaki
AU - Bae, Suk-Chul
AU - Zielenska, Maria
AU - Squire, Jeremy A
AU - Lian, Jane B
AU - Stein, Janet L
AU - Zambetti, Gerard P
AU - Jones, Stephen N
AU - Galindo, Mario
AU - Hesse, Eric
AU - Stein, Gary S
AU - van Wijnen, Andre J
PY - 2013
Y1 - 2013
N2 - Osteosarcoma (OS) is a primary bone tumor that is most prevalent during adolescence. RUNX2, which stimulates differentiation and suppresses proliferation of osteoblasts, is deregulated in OS. Here, we define pathological roles of RUNX2 in the etiology of OS and mechanisms by which RUNX2 expression is stimulated. RUNX2 is often highly expressed in human OS biopsies and cell lines. Small interference RNA-mediated depletion of RUNX2 inhibits growth of U2OS OS cells. RUNX2 levels are inversely linked to loss of p53 (which predisposes to OS) in distinct OS cell lines and osteoblasts. RUNX2 protein levels decrease upon stabilization of p53 with the MDM2 inhibitor Nutlin-3. Elevated RUNX2 protein expression is post-transcriptionally regulated and directly linked to diminished expression of several validated RUNX2 targeting microRNAs in human OS cells compared with mesenchymal progenitor cells. The p53-dependent miR-34c is the most significantly down-regulated RUNX2 targeting microRNAs in OS. Exogenous supplementation of miR-34c markedly decreases RUNX2 protein levels, whereas 3'-UTR reporter assays establish RUNX2 as a direct target of miR-34c in OS cells. Importantly, Nutlin-3-mediated stabilization of p53 increases expression of miR-34c and decreases RUNX2. Thus, a novel p53-miR-34c-RUNX2 network controls cell growth of osseous cells and is compromised in OS.
AB - Osteosarcoma (OS) is a primary bone tumor that is most prevalent during adolescence. RUNX2, which stimulates differentiation and suppresses proliferation of osteoblasts, is deregulated in OS. Here, we define pathological roles of RUNX2 in the etiology of OS and mechanisms by which RUNX2 expression is stimulated. RUNX2 is often highly expressed in human OS biopsies and cell lines. Small interference RNA-mediated depletion of RUNX2 inhibits growth of U2OS OS cells. RUNX2 levels are inversely linked to loss of p53 (which predisposes to OS) in distinct OS cell lines and osteoblasts. RUNX2 protein levels decrease upon stabilization of p53 with the MDM2 inhibitor Nutlin-3. Elevated RUNX2 protein expression is post-transcriptionally regulated and directly linked to diminished expression of several validated RUNX2 targeting microRNAs in human OS cells compared with mesenchymal progenitor cells. The p53-dependent miR-34c is the most significantly down-regulated RUNX2 targeting microRNAs in OS. Exogenous supplementation of miR-34c markedly decreases RUNX2 protein levels, whereas 3'-UTR reporter assays establish RUNX2 as a direct target of miR-34c in OS cells. Importantly, Nutlin-3-mediated stabilization of p53 increases expression of miR-34c and decreases RUNX2. Thus, a novel p53-miR-34c-RUNX2 network controls cell growth of osseous cells and is compromised in OS.
KW - Animals
KW - Bone Neoplasms
KW - Cell Cycle
KW - Cell Line, Tumor
KW - Cell Proliferation
KW - Core Binding Factor Alpha 1 Subunit
KW - Cyclin-Dependent Kinase Inhibitor p21
KW - DNA Damage
KW - Down-Regulation
KW - Gamma Rays
KW - Gene Expression Regulation, Neoplastic
KW - Humans
KW - Mice
KW - MicroRNAs
KW - Osteosarcoma
KW - Protein Stability
KW - RNA, Messenger
KW - Tumor Suppressor Protein p14ARF
KW - Tumor Suppressor Protein p53
U2 - 10.1074/jbc.M112.445890
DO - 10.1074/jbc.M112.445890
M3 - SCORING: Journal article
C2 - 23720736
VL - 288
SP - 21307
EP - 21319
JO - J BIOL CHEM
JF - J BIOL CHEM
SN - 0021-9258
IS - 29
M1 - 29
ER -