In vitro response of monocyte-derived macrophages to a decellularized pericardial biomaterial

• Published in: Journal of biomedical materials research. Part A Vol. 93A; no. 1; pp. 280 - 288
• Main Authors: Ariganello, Marianne B., Labow, Rosalind S., Lee, J. Michael
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.04.2010; Wiley-Blackwell
• Subjects: acid phosphatase; Acid Phosphatase - metabolism; Animals; Biocompatible Materials - pharmacology; Biological and medical sciences; biomaterials; Biotechnology; Cells, Cultured; collagen; decellularized bovine pericardium; DNA - metabolism; Esterases - metabolism; Fundamental and applied biological sciences. Psychology; Health. Pharmaceutical industry; Humans; Immunoblotting; Industrial applications and implications. Economical aspects; Intracellular Space - drug effects; Intracellular Space - metabolism; macrophage; Macrophages - cytology; Macrophages - drug effects; Macrophages - enzymology; Macrophages - ultrastructure; Medical sciences; Microscopy, Confocal; Miscellaneous; Pericardium - cytology; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Technology. Biomaterials. Equipments; Vascular surgery: aorta, extremities, vena cava. Surgery of the lymphatic vessels; Cell culture; Prosthesis; Phosphoric monoester hydrolases; Esterases; Scaffold; Heart valve; Styrene polymer; Biomaterial; biomaterials; Ungulata; Biomedical engineering; Dimethylsiloxane polymer; Bovine; Monocyte; Enzyme; Tissue engineering; Glycoprotein; In vitro; Pericardium; decellularized bovine pericardium; Vertebrata; Mammalia; Collagen; Animal protein; Hydrolases; Circulatory system; Artiodactyla; Acid phosphatase; Comparative study; Macrophage
• ISSN: 1549-3296; 1552-4965; 1552-4965
• DOI: 10.1002/jbm.a.32554

Decellularized tissue‐derived heart valves are an example of biomaterials derived from natural scaffolds. These types of implants are increasing in popularity although their in vivo performance is still only poorly understood and has, at times, been catastrophic. It is apparent that better understanding is required before these biomaterials can be used safely. In this study, the human monocyte‐derived macrophage (MDM) response to decellularized bovine pericardium (DBP) was used as a model to predict the biological performance of these materials on implantation. Human monocytes differentiated on tissue culture polystyrene (TCPS) for 14 days were trypsinized and reseeded onto DBP, TCPS, and polydimethylsiloxane (PDMS) for 48 h. The MDMs on DBP contained less intracellular and extracellular esterase activity compared with MDMs on TCPS and PDMS, as well as less acid phosphatase activity than on TCPS. As well, morphologically, MDMs on DBP were less spread, less multinucleated and did not display many lamellipodia. Taken together, these data represent the first evidence of the MDM response to intact, native extracellular matrix, demonstrating that these cells reacted with an altered, possibly reduced foreign body response on this natural scaffold compared with the two control surfaces. This in vitro MDM cell model may provide a novel method for predicting and elucidating the biological performance of tissue‐derived biomaterials, thereby directing a more rational design of biomaterials for tissue regeneration purposes. © 2009 Wiley Periodicals, Inc. J Biomed Mater Res 2010