Characterizing and optimizing poly-L-lactide-co-ε-caprolactone membranes for urothelial tissue engineering.
Different synthetic biomaterials such as polylactide (PLA), polycaprolactone and poly-l-lactide-co-ε-caprolactone (PLCL) have been studied for urothelial tissue engineering, with favourable results. The aim of this research was to further optimize the growth surface for human urothelial cells (hUCs) by comparing different PLCL-based membranes: smooth (s) and textured (t) PLCL and knitted PLA mesh with compression-moulded PLCL (cPLCL). The effects of topographical texturing on urothelial cell response and mechanical properties under hydrolysis were studied. The main finding was that both sPLCL and tPLCL supported hUC growth significantly better than cPLCL. Interestingly, tPLCL gave no significant advantage to hUC attachment or proliferation compared with sPLCL. However, during the 14 day assessment period, the majority of cells were viable and maintained phenotype on all the membranes studied. The material characterization exhibited potential mechanical characteristics of sPLCL and tPLCL for urothelial applications. Furthermore, the highest elongation of tPLCL supports the use of this kind of texturing. In conclusion, in light of our cell culture results and mechanical characterization, both sPLCL and tPLCL should be further studied for urothelial tissue engineering.
Institute of Biomedical Technology, University of Tampere, Tampere, Finland. reetta.sartoneva@uta.fi
Reetta
R
Sartoneva
Anne-Marie
AM
Haaparanta
Tuija
T
Lahdes-Vasama
Bettina
B
Mannerström
Minna
M
Kellomäki
Minna
M
Salomäki
George
G
Sándor
Riitta
R
Seppänen
Susanna
S
Miettinen
Suvi
S
Haimi
D001672:Biocompatible Materials; D002448:Cell Adhesion; D049109:Cell Proliferation; D002478:Cells, Cultured; D006801:Humans; D011091:Polyesters / Q000737:chemistry*; D013499:Surface Properties; D023822:Tissue Engineering / Q000379:methods*; D019459:Urothelium
D001672:Biocompatible Materials; D011091:Polyesters; C033616:poly(lactide); C062968:lactide-caprolactone copolymer