한빛사논문
Young Won Koo1, Chang Su Lim2, Anjani Darai2, JiUn Lee1, Wonjin Kim1, Inbo Han2* and Geun Hyung Kim1,3*
1Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
2Department of Neurosurgery, CHA University School of Medicine, CHA Bundang Medical Center, Seongnam-Si, Gyeonggi-Do 13496, Republic of Korea
3Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
*Correspondence: Inbo Han, Geun Hyung Kim
Abstract
Background
Intervertebral disc degeneration (IVDD) is a common cause of chronic low back pain (LBP) and a socioeconomic burden worldwide. Conservative therapies and surgical treatments provide only symptomatic pain relief without promoting intervertebral disc (IVD) regeneration. Therefore, the clinical demand for disc regenerative therapies for disc repair is high.
Methods
In this study, we used a rat tail nucleotomy model to develop mechanically stable collagen-cryogel and fibrillated collagen with shape-memory for use in minimally invasive surgery for effective treatment of IVDD. The collagen was loaded with hyaluronic acid (HA) into a rat tail nucleotomy model.
Results
The shape-memory collagen structures exhibited outstanding chondrogenic activities, having completely similar physical properties to those of a typical shape-memory alginate construct in terms of water absorption, compressive properties, and shape-memorability behavior. The treatment of rat tail nucleotomy model with shape-memory collagen-cryogel/HA alleviated mechanical allodynia, maintained a higher concentration of water content, and preserved the disc structure by restoring the matrix proteins.
Conclusion
According to these results, the collagen-based structure could effectively repair and maintain the IVD matrix better than the controls, including HA only and shape-memory alginate with HA.
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