Effect of 3-hydroxyhexanoate content in poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) on in vitro growth and differentiation of smooth muscle cells.
In this paper, comprehensive characteristics including cell attachment, cell proliferation status, cell cycle progression and phenotypic changes of smooth muscle cells from rabbit aorta (RaSMCs) were studied on poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) containing 0-20% HHx (mol%) in comparison with tissue culture plates (TCPs). Results demonstrated that RaSMCs adhered better on PHBHHx containing 12% HHx (12%HHx) although they proliferated better on 20%HHx-containing PHBHHx films (20%HHx). This was explained by the difference in cell cycle progression observed using flow cytometry, as it was found that only 20%HHx-containing polymer could maintain the normal cell cycle evolution as TCPs did after 3 d incubation. The highest expression level and typical spindle-like distribution of alpha-actin on 20%HHx-containing polymer were characterized as the contractile-like phenotype, suggesting that RaSMCs tended to differentiate rather than proliferate compared to the cells grown on 12%HHx polymer. Results obtained above suggested that 20%HHx was suitable for RaSMCs proliferation, leading to its change to contractile phenotype. This study extends the potential applications of PHBHHx in SMCs-related graft scaffold fabrication for tissue engineering.
Qu
Xiang-Hua
XH
Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China.
Wu
Qiong
Q
Liang
Juan
J
Zou
Bing
B
Chen
Guo-Qiang
GQ
D020155:3-Hydroxybutyric Acid / Q000737:chemistry*; D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry*; D002208:Caproates / Q000737:chemistry*; D002454:Cell Differentiation; D049109:Cell Proliferation; D002478:Cells, Cultured; D008422:Materials Testing; D032389:Myocytes, Smooth Muscle / Q000166:cytology* / Q000502:physiology*; D011817:Rabbits; D023822:Tissue Engineering / Q000379:methods*; D000094122:Polyhydroxybutyrates
D020155:3-Hydroxybutyric Acid; D001672:Biocompatible Materials; D002208:Caproates; C115940:poly(3-hydroxybutyrate-co-3-hydroxyhexanoate); D000094122:Polyhydroxybutyrates; C045051:3-hydroxyhexanoic acid