Harnessing Platelet-derived factors to reactivate Nucleus Pulposus cells in Intervertebral Disc Regeneration

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Introduction Degenerative disc disease (DDD) is a significant healthcare challenge, particularly in the elderly population. Current treatment options range from conservative approaches to invasive surgical interventions. In intervertebral disc (IVD) disease, the degeneration of the Nucleus Pulposus (NP) is a key factor in the initiation of the pathology. Several tissue engineering strategies have been explored to restore the NP cell and matrix components, using adult mesenchymal stem cells (MSCs) and, more recently, induced pluripotent stem cells. However, these approaches have not been fully successful due to the acidic environment of the NP, which is harmful to implanted heterologous cells.Recent studies have shown that platelet derivatives, particularly Platelet-Rich Plasma (PRP) and Platelet Lysate (PL), are effective in promoting connective tissue regeneration. Methods This study aimed to explore the potential of PL to stimulate NP cell proliferation and differentiation, either by directly activating resident NP cells or by expanding them in vitro for subsequent implantation, with the overarching goal of promoting IVD regeneration. IVD biopsies were processed using two methods to isolate NP cells: enzymatic digestion (NPd), which degrades the extracellular matrix to release the cells, and direct plating of biopsy fragments (NPwd), which isolates migrating cells from the ti

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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