Icariin-conditioned serum engineered with hyaluronic acid promote repair of articular cartilage defects in rabbit knees

BMC Complementary and Alternative Medicine

Research Article

Juntao Zhang¹  Chao Zhang¹  Aifeng Liu¹  Man Shang²  Jianjie Jiao²  Donglin Zhang³  Chaochao Wu³ 

[1] Department of orthopedics, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China;Department of pharmacology, School of Basic Medical Sciences, Tianjin Medical University, 22# Qixiangtai Road, Heping District, Tianjin, China;Tianjin University of Traditional Chinese Medicine, Tianjin, China;

关键词: Cartilage defect;    Chondrocyte;    Icarrin;    Hyaluronic acid;   

DOI  :  10.1186/s12906-019-2570-0

 received in 2018-01-30, accepted in 2019-06-19,  发布年份 2019

来源: Springer

【 摘 要 】

BackgroundOsteochondral defects mostly occur as a result of trauma or articular degeneration. The poor regenerative ability of articular cartilage remains osteochondral defects are a tricky problem to deal with. The modern treatment strategies mainly focus on cartilage tissue engineering with bioactive materials. In this study, we aimed to develop icariin conditioned serum (ICS) together with hyaluronic acid (HA) and determine their ability in reparing osteochondral tissue in a critical-sized defect in rabbit knees.MethodsPrimary chondrocytes were incubated with serum conditioned with icariin at different concentrations, then cell proliferation rates and glycosaminoglycan (GAG) secretion were detected. Rabbits were treated with intra-articular injection of 0.5 mL normal saline (NS), ICS, HA and ICS + HA in the right knee joint, respectively. ICRS scores were used to assess the macroscopic cartilage regeneration. Histological and immunohistochemical analysis including H&E, Safranin O, toluidine blue and collagen II staining were used to determine the repair of cartilage and the regeneration of chondrocytes.ResultsIcariin at a low dose of 0.94 g/kg was identified to have significantly promoted the proliferation of chondrocytes and enhance the secretion of GAG. Femoral condyle from rabbits treated by ICS together with HA was observed to be integrated with native cartilage and more subchondral bone regeneration. ICS together with HA could promote repair of the cartilage defect and increase the neoformation of cartilage.ConclusionsThese results demonstrated the potential of ICS combined with HA to promote reparative response in cartilage defects and the possible application in bioactive material based cartilage regeneration therapies.

【 授权许可】

CC BY   
© The Author(s). 2019

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