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2016 ; 6
(ä): 22729
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MiR-630 Inhibits Endothelial-Mesenchymal Transition by Targeting Slug in
Traumatic Heterotopic Ossification
#MMPMID26940839
Sun Y
; Cai J
; Yu S
; Chen S
; Li F
; Fan C
Sci Rep
2016[Mar]; 6
(ä): 22729
PMID26940839
show ga
Heterotopic ossification (HO) is the abnormal formation of mature bone in
extraskeletal soft tissues that occurs as a result of inflammation caused by
traumatic injury or associated with genetic mutation. Despite extensive research
to identify the source of osteogenic progenitors, the cellular origins of HO are
controversial and the underlying mechanisms, which are important for the early
detection of HO, remain unclear. Here, we used in vitro and in vivo models of
BMP4 and TGF-?2-induced HO to identify the cellular origin and the mechanisms
mediating the formation of ectopic bone in traumatic HO. Our results suggest an
endothelial origin of ectopic bone in early phase of traumatic HO and indicate
that the inhibition of endothelial-mesenchymal transition by miR-630 targeting
Slug plays a role in the formation of ectopic bone in HO. A matched case-control
study showed that miR-630 is specifically downregulated during the early stages
of HO and can be used to distinguish HO from other processes leading to bone
formation. Our findings suggest a potential mechanism of post-traumatic ectopic
bone formation and identify miR-630 as a potential early indicator of HO.
|*Gene Expression Regulation
[MESH]
|*Ossification, Heterotopic
[MESH]
|Adolescent
[MESH]
|Adult
[MESH]
|Animals
[MESH]
|Case-Control Studies
[MESH]
|Child
[MESH]
|Endothelium/*physiology
[MESH]
|Female
[MESH]
|Humans
[MESH]
|Male
[MESH]
|Mesoderm/*physiology
[MESH]
|Mice, Inbred BALB C
[MESH]
|MicroRNAs/*metabolism
[MESH]
|Middle Aged
[MESH]
|Snail Family Transcription Factors/*metabolism
[MESH]