Premium
Autologous thrombin preparations: Biocompatibility and growth factor release
Author(s) -
Matuska Andrea M.,
Klimovich Marina L.,
Anz Adam W.,
Podesta Luga,
Chapman John R.
Publication year - 2020
Publication title -
wound repair and regeneration
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.847
H-Index - 109
eISSN - 1524-475X
pISSN - 1067-1927
DOI - 10.1111/wrr.12873
Subject(s) - biocompatibility , thrombin , wound healing , chemistry , fibrin , growth factor , biomedical engineering , pharmacology , mesenchymal stem cell , platelet rich plasma , immunology , platelet , biochemistry , medicine , pathology , receptor , organic chemistry
Platelet‐rich plasma (PRP) has been investigated to promote wound healing in a variety of tissues. Thrombin, another essential component of wound healing, is sometimes combined with PRP to generate a fibrin clot in order to retain the sample at the delivery site and to stimulate growth factor release. Using a fully autologous approach, autologous serum (AS) with thrombin activity can be prepared using a one‐step procedure by supplementing with ethanol (E + AS) to prolong room temperature stability or prepared ethanol free (E − AS) by utilizing a two‐step procedure to prolong stability. The objective of this study was to evaluate potential wound healing mechanisms of these two preparations using commercially available devices. A variety of tests were conducted to assess biocompatibility and growth factor release from PRP at various ratios. It was found that E − AS contained greater leukocyte viability in the product (97.1 ± 2.0% compared to 41.8 ± 11.5%), supported greater bone marrow mesenchymal stem cell proliferation (3.7× vs 0.8× at a 1:4 ratio and 3.6× vs 1.6× at a 1:10 ratio), and stimulated release of growth factors and cytokines from PRP to a greater extent than E + AS. Of the 36 growth factors and cytokines evaluated, release of 27 of them were significantly reduced by the presence of ethanol in at least one of the tested configurations. It is concluded that the high concentrations of ethanol needed to stabilize point of care autologous thrombin preparations could be detrimental to normal wound healing processes.