Leukocyte inclusion within a platelet rich plasma-derived fibrin scaffold stimulates a more pro-inflammatory environment and alters fibrin properties

• Published in: PloS one Vol. 10; no. 3; p. e0121713
• Main Authors: Anitua, Eduardo, Zalduendo, Mar, Troya, María, Padilla, Sabino, Orive, Gorka
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 30-03-2015; Public Library of Science (PLoS)
• Subjects: Biocompatibility; Biological properties; Biomechanical Phenomena; Biomechanics; Biomedical materials; Biotechnology; Blood platelets; Cell Proliferation; Cells, Cultured; Chloride; Cytokines; Cytokines - metabolism; Dentistry; Enzyme-linked immunosorbent assay; Enzymes; Fibrin; Fibrin - chemistry; Fibrin - physiology; Fibroblasts; Gene expression; Growth factors; Humans; Inflammation; Inflammation - etiology; Inflammation - physiopathology; Inflammation Mediators - metabolism; Kinases; Laboratories; Leukocytes; Leukocytes - cytology; Leukocytes - physiology; Materials Testing; Mechanical properties; Medicine; Morphology; NF-kappa B - metabolism; Osteoblasts; Platelet-Rich Plasma - chemistry; Platelets; Porphyromonas gingivalis; Proteins; Regeneration - physiology; Review boards; Scaffolds; Signal Transduction; Tissue Scaffolds - chemistry; Trends; Wound healing; Spain
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0121713

One of the main differences among platelet-rich plasma (PRP) products is the inclusion of leukocytes that may affect the biological efficacy of these autologous preparations. The purpose of this study was to evaluate whether the addition of leukocytes modified the morphological, biomechanical and biological properties of PRP under normal and inflammatory conditions. The release of pro-inflammatory cytokines from plasma rich in growth factors (PRGF) and leukocyte-platelet rich plasma (L-PRP) scaffolds was determined by enzyme-linked immunosorbent assay (ELISA) and was significantly increased under an inflammatory condition when leukocytes were included in the PRP. Fibroblasts and osteoblasts treated with L-PRP, under an inflammatory situation, underwent a greater activation of NFĸB pathway, proliferated significantly less and secreted a higher concentration of pro-inflammatory cytokines. These cellular events were assessed through Western blot and fluorimetric and ELISA methods, respectively. Therefore, the inclusion of leukocytes induced significantly higher pro-inflammatory conditions.