Injectable rBMSCs-laden hydrogel microspheres loaded with naringin for osteomyelitis treatment

Author:

Dong Minyi,Yang Xiaofu,Lu Jingyi,Siow LixuenORCID,He Huihui,Liu An,Wu Pengcheng,He YongORCID,Sun MiaoORCID,Yu MengfeiORCID,Wang HuimingORCID

Abstract

Abstract Osteomyelitis, caused by purulent bacteria invading bone tissue, often occurs in long bones and seriously affects the physical and mental health and working ability of patients; it can even endanger life. However, due to bone cavity structure, osteomyelitis tends to occur inside the bone and thus lacks an effective treatment; anti-inflammatory treatment and repair of bone defects are necessary. Here, we developed injectable hydrogel microspheres loaded with naringin and bone marrow mesenchymal stem cells, which have anti-inflammatory and osteogenic properties. These homogeneous microspheres, ranging from 200 to 1000 μm, can be rapidly fabricated using an electro-assisted bio-fabrication method. Interestingly, it was found that microspheres with relatively small diameters (200 μm) were more conducive to the initial cell attachment, growth, spread, and later osteogenic differentiation. The developed microspheres can effectively treat tibial osteomyelitis in rats within six weeks, proving their prospects for clinical application.

Funder

China Postdoctoral Science Foundation

Natural Science Foundation of Zhejiang Province

National Nature Science Foundation of China

Publisher

IOP Publishing

Subject

Biomedical Engineering,General Medicine,Biomaterials,Biochemistry,Bioengineering,Biotechnology

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