FN Archimer Export Format PT J TI An in vitro study of two GAG-like marine polysaccharides incorporated into injectable hydrogels for bone and cartilage tissue engineering BT AF REDERSTORFF, Emilie WEISS, Pierre SOURICE, S. PILET, P. XIE, F. SINQUIN, Corinne COLLIEC-JOUAULT, Sylvia GUICHEUX, Jerome LAIB, S. AS 1:1,2;2:1;3:1;4:1;5:1;6:2;7:2;8:1;9:1; FF 1:;2:;3:;4:;5:;6:PDG-RBE-BRM-BMM;7:PDG-RBE-BRM-BMM;8:;9:; C1 Univ Nantes, INSERM, UMRS 791, Lab Osteoarticular & Dent Tissue Engn,Sch Dent Su, F-44042 Nantes 1, France. IFREMER, Lab Biotechnol & Marine Mol, F-44311 Nantes 03, France. C2 UNIV NANTES, FRANCE IFREMER, FRANCE SI NANTES UNIV-FRANCAISE SE PDG-DOP-DCN-BRM-BMM UNIV-FRANCAISE PDG-RBE-BRM-BMM IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 4.865 TC 17 UR https://archimer.ifremer.fr/doc/00030/14090/15747.pdf LA English DT Article DE ;Glycosaminoglycan;Hydrogel;Polysaccharide;Bone and cartilage tissue engineering;In vitro test AB Natural polysaccharides are attractive compounds with which to build scaffolds for bone and cartilage tissue engineering. Here we tested two non-standard ones, HE800 and GY785, for the two-dimensional (2-D) and three-dimensional (3-D) culture of osteoblasts (MC3T3-E1) and chondrocytes (C28/I2). These two glycosaminoglycan-like marine exopolysaccharides were incorporated into an injectable silylated hydroxypropylmethylcellulose-based hydrogel (Si-HPMC) that has already shown its suitability for bone and cartilage tissue engineering. Results showed that, similarly to hyaluronic acid (HA) (the control), HE800 and GY785 significantly improved the mechanical properties of the Si-HPMC hydrogel and induced the attachment of MC3T3-E1 and C28/I2 cells when these were cultured on top of the scaffolds. Si-HPMC hydrogel containing 0.67% HE800 exhibited the highest compressive modulus (11 kPa) and allowed the best cell dispersion, especially of MC3T3-E1 cells. However, these cells did not survive when cultured in 3-D within hydrogels containing HE800, in contrast to C28/I2 cells. The latter proliferated in the microenvironment or concentrically depending on the nature of the hydrogel. Among all the constructs tested the Si-HPMC hydrogels containing 0.34% HE800 or 0.67% GY785 or 0.67% HA presented the most interesting features for cartilage tissue engineering applications, since they offered the highest compressive modulus (9.5–11 kPa) while supporting the proliferation of chondrocytes. PY 2011 PD MAY SO Acta Biomaterialia SN 1742-7061 PU Elsevier Sci Ltd VL 7 IS 5 UT 000290649500021 BP 2119 EP 2130 DI 10.1016/j.actbio.2011.01.025 ID 14090 ER EF