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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Biomaterials
2014 ; 35
(11
): 3607-17
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Cryo-chemical decellularization of the whole liver for mesenchymal stem
cells-based functional hepatic tissue engineering
#MMPMID24462361
Jiang WC
; Cheng YH
; Yen MH
; Chang Y
; Yang VW
; Lee OK
Biomaterials
2014[Apr]; 35
(11
): 3607-17
PMID24462361
show ga
Liver transplantation is the ultimate treatment for severe hepatic failure to
date. However, the limited supply of donor organs has severely hampered this
treatment. So far, great potentials of using mesenchymal stem cells (MSCs) to
replenish the hepatic cell population have been shown; nevertheless, there still
is a lack of an optimal three-dimensional scaffold for generation of
well-transplantable hepatic tissues. In this study, we utilized a cryo-chemical
decellularization method which combines physical and chemical approach to
generate acellular liver scaffolds (ALS) from the whole liver. The produced ALS
provides a biomimetic three-dimensional environment to support hepatic
differentiation of MSCs, evidenced by expression of hepatic-associated genes and
marker protein, glycogen storage, albumin secretion, and urea production. It is
also found that hepatic differentiation of MSCs within the ALS is much more
efficient than two-dimensional culture in vitro. Importantly, the hepatic-like
tissues (HLT) generated by repopulating ALS with MSCs are able to act as
functional grafts and rescue lethal hepatic failure after transplantation in
vivo. In summary, the cryo-chemical method used in this study is suitable for
decellularization of liver and create acellular scaffolds that can support
hepatic differentiation of MSCs and be used to fabricate functional
tissue-engineered liver constructs.