title: Biocompatibility assessment of novel collagen-sericin scaffolds improved with hyaluronic Acid and chondroitin sulfate for cartilage regeneration.
abstract: Cartilage tissue engineering (CTE) applications are focused towards the use of implantable biohybrids consisting of biodegradable scaffolds combined with in vitro cultured cells. Hyaluronic acid (HA) and chondroitin sulfate (CS) were identified as the most potent prochondrogenic factors used to design new biomaterials for CTE, while human adipose-derived stem cells (ASCs) were proved to display high chondrogenic potential. In this context, our aim was not only to build novel 3D porous scaffolds based on natural compounds but also to evaluate their in vitro biological performances. Therefore, for prospective CTE, collagen-sericin (Coll-SS) scaffolds improved with HA (5% or 10%) and CS (5% or 10%) were used as temporary physical supports for ASCs and were analyzed in terms of structural, thermal, morphological, and swelling properties and cytotoxic potential. To complete biocompatibility data, ASCs viability and proliferation potential were also assessed. Our studies revealed that Coll-SS hydrogels improved with 10% HA and 5% CS displayed the best biological performances in terms of cell viability, proliferation, morphology, and distribution. Thus, further work will address a novel 3D system including both HA 10% and CS 5% glycoproteins, which will probably be exposed to prochondrogenic conditions in order to assess its potential use in CTE applications.
authors.affiliation: Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania.
authors.forename: Sorina
authors.initials: S
authors.lastname: Dinescu
authors.forename: Bianca
authors.initials: B
authors.lastname: Gălăţeanu
authors.forename: Mădălina
authors.initials: M
authors.lastname: Albu
authors.forename: Adriana
authors.initials: A
authors.lastname: Lungu
authors.forename: Eugen
authors.initials: E
authors.lastname: Radu
authors.forename: Anca
authors.initials: A
authors.lastname: Hermenean
authors.forename: Marieta
authors.initials: M
authors.lastname: Costache
mesh_terms: D000273:Adipose Tissue / Q000166:cytology / Q000378:metabolism; D002356:Cartilage / Q000737:chemistry / Q000378:metabolism; D002478:Cells, Cultured; D002809:Chondroitin Sulfates / Q000737:chemistry*; D003094:Collagen / Q000737:chemistry*; D006801:Humans; D006820:Hyaluronic Acid / Q000737:chemistry*; D008422:Materials Testing; D047030:Sericins / Q000737:chemistry*; D013234:Stem Cells / Q000166:cytology / Q000378:metabolism; D023822:Tissue Engineering; D054457:Tissue Scaffolds / Q000737:chemistry*
chemical_list: D047030:Sericins; D006820:Hyaluronic Acid; D002809:Chondroitin Sulfates; D003094:Collagen