Cui Yunli,Wang Fuyou,Tan Hongbo,Zhang Ying,Chen Weijun,Yang Liu.Construction of scaffold for cartilage tissue engineering using collagen and polyvinyl alcohol[J].J Amry Med Univ (J Third Mil Med Univ),2010,32(17):1820-1823.
Cui Yunli,Wang Fuyou,Tan Hongbo,Zhang Ying,Chen Weijun,Yang Liu.Construction of scaffold for cartilage tissue engineering using collagen and polyvinyl alcohol[J].J Amry Med Univ (J Third Mil Med Univ),2010,32(17):1820-1823.DOI:
Objective To construct the scaffold for cartilage tissue engineering according to the bionics principles. Methods 3-dimensional scaffolds were prepared with type-Ⅱ collagen (CoⅡ)
hyaluronan (HA) and chondroitin sulfate (CS) using the freeze-dry technology. Polyvinyl alcohol (PVA) was added to enhance their mechanical strength. The scaffolds were evaluated by SME
mechanical test and immunohistochemistry. Then 293 cells were seeded in scaffolds and cultured for 7 d in vitro. Data were analyzed by SPSS13.0. Results The pores of scaffold were uniform with a porosity rate of 93%-95%. The maximum tension of CoⅡ-CS-HA-PVA scaffold and CoⅡ-CS-HA scaffold was 1.19 N and 0.55 N
respectively (t=4.985
P=0.002). The distribution of cells was even in scaffolds. Conclusion The CoⅡ-CS-HA-PVA scaffold can provide a suitable environment for cell proliferation and differentiation
thus having a very good prospect in clinical application.