Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26610467
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Int+J+Mol+Sci
2015 ; 16
(11
): 27659-76
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Application of Wnt Pathway Inhibitor Delivering Scaffold for Inhibiting Fibrosis
in Urethra Strictures: In Vitro and in Vivo Study
#MMPMID26610467
Zhang K
; Guo X
; Zhao W
; Niu G
; Mo X
; Fu Q
Int J Mol Sci
2015[Nov]; 16
(11
): 27659-76
PMID26610467
show ga
OBJECTIVE: To evaluate the mechanical property and biocompatibility of the Wnt
pathway inhibitor (ICG-001) delivering collagen/poly(L-lactide-co-caprolactone)
(P(LLA-CL)) scaffold for urethroplasty, and also the feasibility of inhibiting
the extracellular matrix (ECM) expression in vitro and in vivo. METHODS: ICG-001
(1 mg (2 mM)) was loaded into a (P(LLA-CL)) scaffold with the co-axial
electrospinning technique. The characteristics of the mechanical property and
drug release fashion of scaffolds were tested with a mechanical testing machine
(Instron) and high-performance liquid chromatography (HPLC). Rabbit bladder
epithelial cells and the dermal fibroblasts were isolated by enzymatic digestion
method. (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT)
assay) and scanning electron microscopy (SEM) were used to evaluate the viability
and proliferation of the cells on the scaffolds. Fibrolasts treated with TGF-?1
and ICG-001 released medium from scaffolds were used to evaluate the
anti-fibrosis effect through immunofluorescence, real time PCR and western blot.
Urethrography and histology were used to evaluate the efficacy of urethral
implantation. RESULTS: The scaffold delivering ICG-001 was fabricated, the fiber
diameter and mechanical strength of scaffolds with inhibitor were comparable with
the non-drug scaffold. The SEM and MTT assay showed no toxic effect of ICG-001 to
the proliferation of epithelial cells on the collagen/P(LLA-CL) scaffold with
ICG-001. After treatment with culture medium released from the drug-delivering
scaffold, the expression of Collagen type 1, 3 and fibronectin of fibroblasts
could be inhibited significantly at the mRNA and protein levels. In the results
of urethrography, urethral strictures and fistulas were found in the rabbits
treated with non-ICG-001 delivering scaffolds, but all the rabbits treated with
ICG-001-delivering scaffolds showed wide caliber in urethras. Histology results
showed less collagen but more smooth muscle and thicker epithelium in urethras
repaired with ICG-001 delivering scaffolds. CONCLUSION: After loading with the
Wnt signal pathway inhibitor ICG-001, the Collagen/P(LLA-CL) scaffold could
facilitate a decrease in the ECM deposition of fibroblasts. The ICG-001
delivering Collagen/P(LLA-CL) nanofibrous scaffold seeded with epithelial cells
has the potential to be a promising substitute material for urethroplasty. Longer
follow-up study in larger animals is needed in the future.