Designer Descemet Membranes Containing PDLLA and Functionalized Gelatins as Corneal Endothelial Scaffold

Jasper Van Hoorick, Jasper Delaey, Hendrik Vercammen, Jürgen Van Erps, Hugo Thienpont, Peter Dubruel, Nadia Zakaria, Carina Koppen, Sandra Van Vlierberghe, Bert Van den Bogerd

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
38 Downloads (Pure)

Abstract

Corneal blindness is the fourth leading cause of visual impairment. Of specific interest is blindness due to a dysfunctional corneal endothelium which can only be treated by transplanting healthy tissue from a deceased donor. Unfortunately, corneal supply does not meet the demand with only one donor for every 70 patients. Therefore, there is a huge interest in tissue engineering of grafts consisting of an ultra-thin scaffold seeded with cultured endothelial cells. The present research describes the fabrication of such artificial Descemet membranes based on the combination of a biodegradable amorphous polyester (poly (d,l-lactic acid)) and crosslinkable gelatins. Four different crosslinkable gelatin derivatives are compared in terms of processing, membrane quality, and function, as well as biological performance in the presence of corneal endothelial cells. The membranes are fabricated through multi-step spincoating, including a sacrificial layer to allow for straightforward membrane detachment after production. As a consequence, ultrathin (<1 mu m), highly transparent (>90%), semi-permeable membranes could be obtained with high biological potential. The membranes supported the characteristic morphology and correct phenotype of corneal endothelial cells while exhibiting similar proliferation rates as the positive control. As a consequence, the proposed membranes prove to be a promising synthetic alternative to donor tissue.
Original languageEnglish
Article number2000760
Pages (from-to)1-16
Number of pages16
JournalAdvanced Healthcare Materials
Volume9
Issue number16
DOIs
Publication statusPublished - Aug 2020

Keywords

  • MECHANICAL-PROPERTIES; TRANSPLANTATION; SUBSTRATE; POLYMERIZATION; POLYESTERS; INHIBITOR; HYDROGELS; STIFFNESS; SURFACE; LACTIDE

Fingerprint

Dive into the research topics of 'Designer Descemet Membranes Containing PDLLA and Functionalized Gelatins as Corneal Endothelial Scaffold'. Together they form a unique fingerprint.

Cite this