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A combinatorial approach towards the design of nanofibrous scaffolds for chondrogenesis.

ABSTRACT: The extracellular matrix (ECM) is a three-dimensional (3D) structure composed of proteinaceous fibres that provide physical and biological cues to direct cell behaviour. Here, we build a library of hybrid collagen-polymer fibrous scaffolds with nanoscale dimensions and screen them for their ability to grow chondrocytes for cartilage repair. Poly(lactic acid) and poly (lactic-co-glycolic acid) at two different monomer ratios (85:15 and 50:50) were incrementally blended with collagen. Physical properties (wettability and stiffness) of the scaffolds were characterized and related to biological performance (proliferation, ECM production, and gene expression) and structure-function relationships were developed. We found that soft scaffolds with an intermediate wettability composed of the highly biodegradable PLGA50:50 and collagen, in two ratios (40:60 and 60:40), were optimal for chondrogenic differentiation of ATDC5 cells as determined by increased ECM production and enhanced cartilage specific gene expression. Long-term cultures indicated a stable phenotype with minimal de-differentiation or hypertrophy. The combinatorial methodology applied herein is a promising approach for the design and development of scaffolds for regenerative medicine.

SUBMITTER: Ahmed M

PROVIDER: S-EPMC4595832 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature

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A combinatorial approach towards the design of nanofibrous scaffolds for chondrogenesis.

Ahmed Maqsood M Ramos Tiago André da Silva TA Damanik Febriyani F Quang Le Bach B Wieringa Paul P Bennink Martin M van Blitterswijk Clemens C de Boer Jan J Moroni Lorenzo L

Scientific reports 20151007

The extracellular matrix (ECM) is a three-dimensional (3D) structure composed of proteinaceous fibres that provide physical and biological cues to direct cell behaviour. Here, we build a library of hybrid collagen-polymer fibrous scaffolds with nanoscale dimensions and screen them for their ability to grow chondrocytes for cartilage repair. Poly(lactic acid) and poly (lactic-co-glycolic acid) at two different monomer ratios (85:15 and 50:50) were incrementally blended with collagen. Physical pro ...[more]

PMID: 26445026

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A combinatorial approach towards the design of nanofibrous scaffolds for chondrogenesis.

Publications

A combinatorial approach towards the design of nanofibrous scaffolds for chondrogenesis.

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