PMID- 18723417 OWN - NLM STAT- MEDLINE DCOM- 20090330 LR - 20181201 IS - 1878-7568 (Electronic) IS - 1742-7061 (Linking) VI - 5 IP - 1 DP - 2009 Jan TI - Gelatin/chitosan/hyaluronan scaffold integrated with PLGA microspheres for cartilage tissue engineering. PG - 328-37 LID - 10.1016/j.actbio.2008.07.030 [doi] AB - Poly(lactide-co-glycotide) (PLGA) microspheres integrated into gelatin/chitosan/hyaluronan scaffolds were fabricated by freeze-drying and crosslinking with 1-ethyl-3-(3-dimethyl aminopropyl)carbodiimide. The effects of the microspheres on porosity, density, compressive modulus, phosphate-buffered saline uptake ratio and weight loss of the scaffolds were evaluated. Generally, a scaffold with a higher PLGA content had a lower porosity and weight loss, and a medium uptake ratio, but a larger apparent density and compressive modulus. When the PLGA content was lower than 50%, the PLGA-integrated scaffolds had a similar pore size (approximately 200microm) as that of the control, and as much as 90% of their porosity could be preserved. In vitro chondrocyte culture in the 50% PLGA-integrated scaffold demonstrated that the cells could proliferate and secrete extracellular matrix at the same level as in the control gelatin/chitosan/hyaluronan scaffold. FAU - Tan, Huaping AU - Tan H AD - Key Laboratory of Macromolecular Synthesis and Functionalization, Ministry of Education, and Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China. FAU - Wu, Jindan AU - Wu J FAU - Lao, Lihong AU - Lao L FAU - Gao, Changyou AU - Gao C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080806 PL - England TA - Acta Biomater JT - Acta biomaterialia JID - 101233144 RN - 0 (Biocompatible Materials) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 26009-03-0 (Polyglycolic Acid) RN - 33X04XA5AT (Lactic Acid) RN - 9000-70-8 (Gelatin) RN - 9004-61-9 (Hyaluronic Acid) RN - 9012-76-4 (Chitosan) SB - IM MH - Animals MH - Biocompatible Materials/*chemistry MH - Cartilage/*metabolism MH - Cell Proliferation MH - Chitosan/*administration & dosage MH - Chondrocytes/metabolism MH - Compressive Strength MH - Gelatin/*administration & dosage MH - Hyaluronic Acid/*administration & dosage MH - Lactic Acid/*chemistry MH - Microspheres MH - Models, Biological MH - Polyglycolic Acid/*chemistry MH - Polylactic Acid-Polyglycolic Acid Copolymer MH - Porosity MH - Rabbits MH - Tissue Engineering/*methods EDAT- 2008/08/30 09:00 MHDA- 2009/03/31 09:00 CRDT- 2008/08/30 09:00 PHST- 2008/01/16 00:00 [received] PHST- 2008/07/09 00:00 [revised] PHST- 2008/07/15 00:00 [accepted] PHST- 2008/08/30 09:00 [pubmed] PHST- 2009/03/31 09:00 [medline] PHST- 2008/08/30 09:00 [entrez] AID - S1742-7061(08)00217-1 [pii] AID - 10.1016/j.actbio.2008.07.030 [doi] PST - ppublish SO - Acta Biomater. 2009 Jan;5(1):328-37. doi: 10.1016/j.actbio.2008.07.030. Epub 2008 Aug 6.