A multilayer tissue engineered meniscus substitute


Halili A. N. , Hasirci N. , HASIRCI V. N.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, vol.25, no.4, pp.1195-1209, 2014 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 4
  • Publication Date: 2014
  • Doi Number: 10.1007/s10856-014-5145-0
  • Title of Journal : JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
  • Page Numbers: pp.1195-1209

Abstract

Various methods have been tried to treat the main meniscus problem, meniscal tears, for which we believe tissue engineering could be a viable solution. In this study, a three dimensional, collagen-based meniscus substitute was prepared by tissue engineering using human fibrochondrocytes and a collagen based-scaffold. This construct was made with 3 different collagen-based foams interspaced with two electrospun nano/microfibrous mats. The top layer was made of collagen type I-chondroitin sulfate-hyaluronic acid (Coll-CS-HA), and the middle and the bottom layers were made of only collagen type I with different porosities and thus with different mechanical properties. The mats of aligned fibers were a blend of collagen type I and poly(l-lactic acid-co-glycolic acid) (PLGA). After seeding with human fibrochondrocytes, cell attachment, proliferation, and production of extracellular matrix and glucoseaminoglycan were studied. Cell seeding had a positive effect on the compressive properties of foams and the 3D construct. The 3D construct with all its 5 layers had better mechanical properties than the individual foams.