TY  - JOUR
A1  - Maawi, Sarah al-
A1  - Herrera-Vizcaíno, Carlos
A1  - Orlowska, Anna
A1  - Willershausen, Ines
A1  - Sader, Robert Alexander
A1  - Miron, Richard J.
A1  - Choukroun, Joseph
A1  - Ghanaati, Shahram Michael
T1  - Biologization of collagen-based biomaterials using liquid-platelet-rich fibrin: New insights into clinically applicable tissue engineering
T2  - Materials
N2  - Platelet-rich fibrin (PRF) is a blood concentrate derived from venous blood that is processed without anticoagulants by a one-step centrifugation process. This three-dimensional scaffold contains inflammatory cells and plasma proteins entrapped in a fibrin matrix. Liquid-PRF was developed based on the previously described low-speed centrifuge concept (LSCC), which allowed the introduction of a liquid-PRF formulation of fibrinogen and thrombin prior to its conversion to fibrin. Liquid-PRF was introduced to meet the clinical demand for combination with biomaterials in a clinically applicable and easy-to-use way. The aim of the present study was to evaluate, ex vivo, the interaction of the liquid-PRF constituents with five different collagen biomaterials by histological analyses. The results first demonstrated that large variability existed between the biomaterials investigated. Liquid-PRF was able to completely invade Mucograft® (MG; Geistlich Biomaterials, Wolhusen, Switzerland) and to partly invade Bio-Gide® (BG; Geistlich Biomaterials, Wolhusen, Switzerland) and Mucoderm® (MD; Botiss Biomaterials, Berlin, Germany), and Collprotect® (CP; Botiss Biomaterials, Berlin, Germany) showed only a superficial interaction. The BEGO® collagen membrane (BCM; BEGO Implant Systems) appeared to be completely free of liquid-PRF. These results were confirmed by the different cellular penetration and liquid-PRF absorption coefficient (PAC) values of the evaluated membranes. The present study demonstrates a system for loading biomaterials with a complex autologous cell system (liquid-PRF) in a relatively short period of time and in a clinically relevant manner. The combination of biomaterials with liquid-PRF may be clinically utilized to enhance the bioactivity of collagen-based biomaterials and may act as a biomaterial-based growth factor delivery system.
KW  - collagen
KW  - leukocytes
KW  - platelets
KW  - platelet-rich fibrin
KW  - tissue engineering
KW  - centrifugation
KW  - liquid-PRF
KW  - LSCC
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/52744
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-527441
SN  - 1996-1944
N1  - This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
VL  - 12
IS  - 23, Art. 3993
SP  - 1
EP  - 17
PB  - MDPI
CY  - Basel
ER  -