Electrospun gelatin scaffolds incorporating rat decellularized brain extracellular matrix for neural tissue engineering.
The fabrication of an instructive bioabsorbable scaffold is one of the main goals for tissue engineering applications. In this regard, genipin cross-linked gelatin scaffolds, produced by electrospinning, were tested as a platform to include decellularized rat brain extracellular matrix as an active agent to provide fundamental biochemical cues to the seeded cells. This approach is expected to furnish a suitable natural-based polymeric scaffold with sufficient temporal stability to support cell attachment and spreading, also providing tissue-specific signals that can contribute to the expression of the requested cellular phenotype. We first demonstrated the effectiveness of the proposed decellularization protocol and the cytocompatibility of the resulting brain matrix. Then, the in vitro biological assays of the conditioned electrospun scaffolds, using rat allogeneic mesenchymal stromal cells, confirmed their biocompatibility and showed a differentiative potential in presence of just 1% w/w decellularized rat brain extracellular matrix.
Advanced Center for Translational Regenerative Medicine (ACTREM), Karolinska Institutet, Stockholm, Sweden.
Silvia
S
Baiguera
Costantino
C
Del Gaudio
Elena
E
Lucatelli
Elena
E
Kuevda
Margherita
M
Boieri
Benedetta
B
Mazzanti
Alessandra
A
Bianco
Paolo
P
Macchiarini
D000818:Animals; D001921:Brain / Q000166:cytology*; D002478:Cells, Cultured; D005109:Extracellular Matrix / Q000737:chemistry*; D005780:Gelatin / Q000737:chemistry*; D039823:Iridoids / Q000737:chemistry; D008297:Male; D059630:Mesenchymal Stem Cells / Q000166:cytology*; D051381:Rats; D023822:Tissue Engineering / Q000379:methods*; D054457:Tissue Scaffolds / Q000737:chemistry*
D039823:Iridoids; D005780:Gelatin; C007834:genipin
Cytocompatibility; Decellularized brain extracellular matrix; Mesenchymal stromal cell differentiation; Neural tissue engineering