10.1002/jcp.24614 http://scihub22266oqcxt.onion/10.1002/jcp.24614 C4926039!4926039
!24619927
free free free
Warning : file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=24619927
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
J+Cell+Physiol
2014 ; 229
(11
): 1690-6
Nephropedia Template TP gab.com Text Twit Text FOAVip Twit Text # English Wikipedia
Nanotopography directs mesenchymal stem cells to osteoblast lineage through
regulation of microRNA-SMAD-BMP-2 circuit
#MMPMID24619927
Kato RB
; Roy B
; De Oliveira FS
; Ferraz EP
; De Oliveira PT
; Kemper AG
; Hassan MQ
; Rosa AL
; Beloti MM
J Cell Physiol
2014[Nov]; 229
(11
): 1690-6
PMID24619927
show ga
The aim of this study was to investigate if chemically produced nanotopography on
titanium (Ti) surface induces osteoblast differentiation of cultured human bone
marrow mesenchymal stem cells (hMSCs) by regulating the expression of microRNAs
(miRs). It was demonstrated that Ti with nanotopography induces osteoblast
differentiation of hMSCs as evidenced by upregulation of osteoblast specific
markers compared with untreated (control) Ti at day 4. At this time-point,
miR-sequencing analysis revealed that 20 miRs were upregulated (>twofold) while
20 miRs were downregulated (>threefold) in hMSCs grown on Ti with nanotopography
compared with control Ti. Three miRs, namely miR-4448, -4708, and -4773, which
were significantly downregulated (>fivefold) by Ti with nanotopography affect
osteoblast differentiation of hMSCs. These miRs directly target SMAD1 and SMAD4,
both key transducers of the bone morphogenetic protein 2 (BMP-2) osteogenic
signal, which were upregulated by Ti with nanotopography. Overexpression of
miR-4448, -4708, and 4773 in MC3T3-E1 pre-osteoblasts noticeably inhibited gene
and protein expression of SMAD1 and SMAD4 and therefore repressed the gene
expression of key bone markers. Additionally, it was observed that the treatment
with BMP-2 displayed a higher osteogenic effect on MC3T3-E1 cells grown on Ti
with nanotopography compared with control Ti, suggesting that the BMP-2 signaling
pathway was more effective on this surface. Taken together, these results
indicate that a complex regulatory network involving a miR-SMAD-BMP-2 circuit
governs the osteoblast differentiation induced by Ti with nanotopography. J.
Cell. Physiol. 229: 1690-1696, 2014. © 2014 Wiley Periodicals, Inc.
Please enable JavaScript to view the comments powered by Disqus. |*Cell Lineage/drug effects/genetics
[MESH] |Alkaline Phosphatase/genetics/metabolism
[MESH] |Animals
[MESH] |Biomarkers/metabolism
[MESH] |Bone Morphogenetic Protein 2/*genetics/metabolism
[MESH] |Cell Differentiation/drug effects/genetics
[MESH] |Cell Line
[MESH] |Core Binding Factor Alpha 1 Subunit/genetics/metabolism
[MESH] |Female
[MESH] |Humans
[MESH] |Mesenchymal Stem Cells/*cytology
[MESH] |Mice
[MESH] |MicroRNAs/*genetics/metabolism
[MESH] |Middle Aged
[MESH] |Nanoparticles/*chemistry
[MESH] |Osteoblasts/*cytology
[MESH] |Osteocalcin/metabolism
[MESH] |Osteopontin/metabolism
[MESH] |Smad Proteins/*genetics
[MESH] |Titanium/pharmacology
[MESH] DeepDyve Pubget Overpricing