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2015 ; 8
(8
): 13227-34
Nephropedia Template TP
gab.com Text
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English Wikipedia
BAMBI inhibits skin fibrosis in keloid through suppressing TGF-?1-induced
hypernomic fibroblast cell proliferation and excessive accumulation of collagen
I
#MMPMID26550247
Lin L
; Wang Y
; Liu W
; Huang Y
Int J Clin Exp Med
2015[]; 8
(8
): 13227-34
PMID26550247
show ga
Keloids are scars characterized by pathologically excessive dermal fibrosis and
aberrant wound healing. Hypernomic growth of fibroblast cells and excessive
accumulation of collagens, especially collagen I, made important contribution to
keloid formation. Transforming growth factor-beta 1 (TGF-?1) was a key ruler for
the dermal fibrosis. Here, we found that BMP and activin membrane-bound inhibitor
(BAMBI), a pseudo-receptor of TGF-?1, was being decreased during the human keloid
development and in vitro keloid cell growth. To investigate the effect of BAMBI
on keloid development, pcDNA-BAMBI expression vector were transfected into the
human primary keloid cells. Then the cell proliferation and viability were
detected with EdU and MTT methods and expression of TGF-?1 and collagen I/III
were examined by Western blotting analysis. The results showed that, compared to
the control, BAMBI overexpression suppressed the cell proliferation and
expression of TGF-?1 and collagen I (P < 0.05), whereas, TGF?1 overexpression
rescued the suppression. Finally, pcDNA-BAMBI expression vector was
subcutaneously injected into transplanted human keloid in nude mice. During the 6
weeks of in vivo experiment, pcDNA-BAMBI injection significantly suppressed the
growth of the implanted keloids and the ratio of collagen I in the keloids.
Therefore, BAMBI had an effect on inhibition of keloid growth through suppressing
TGF-?1-induced fibroblast cell proliferation and excessive accumulation of
collagen I.