ArticleBioengineering (Basel, Switzerland)2026
Angiogenic and Regenerative Potential of Plasma-Based and Plasma-Free Platelet Concentrates Obtained via Different Fractionation and Activation Methods.
Article in Bioengineering (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPlatelet concentrates are widely used in regenerative dentistry and maxillofacial surgery; however, the lack of protocol standardization and selection criteria results in contradictory clinical outcomes. This study aimed to perform a comparative analysis of the biological activity of various platelet concentrates obtained via different fractionation and activation procedures under uniform in vitro experimental conditions.
methodsRat adipose-derived stem cells (ADSCs) and human EA.hy926 endothelial cells were used to evaluate four platelet concentrate types via tube formation, wound healing (scratch), and cell proliferation assays.
resultsPlatelet concentrates obtained by the single-centrifugation protocol (L-PRP-1) exhibited maximal retained platelet potential, corresponding to a peak 5-fold increase in cell migration. Chemical activation of plasma-based concentrates (L-PRP, P-PRP) with calcium/thrombin was critically required to trigger angiogenesis and accelerate endothelial chemotaxis. Conversely, plasma-free platelet concentrate (PFPC) exhibited a unique capacity for spontaneous activation and clot formation without exogenous inducers, triggering rapid angiogenesis and sustaining ADSC proliferation.
conclusionsWithin the framework of our in vitro model, activated plasma-based forms are biologically justified for accelerated soft tissue healing and socket preservation, whereas the complete removal of plasma proteins suggests the potential utility of PFPC as a biomimetic matrix-carrier for maxillofacial tissue engineering.
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