title: Incorporation and immunogenicity of cleaned bovine bone in a sheep model.
abstract: This study was conducted to determine if a novel cleaning process could extract antigenic material from bovine bone thereby improving incorporation. Cleaned bovine xenograft, untreated bovine xenograft and sheep allograft were implanted into the tibia of mature sheep for 12 and 24 weeks. Inflammation, bone integration and immunological reactions were evaluated via standardized assays. Cleaned bovine bone dowels induced significantly lower inflammatory responses (p < 50.05) when compared to traditionally processed xenograft. Bone integration, measured by in situ biomechanics, was not different between cleaned bovine bone and allograft controls (p = 0.96). A transient antibody response was observed for non-treated xenografts although this response abated by 3 months.
authors.affiliation: Biotechnology Development Group, RTI Biologics, Alachua, FL, USA.
authors.forename: Jordan
authors.initials: J
authors.lastname: Katz
authors.forename: Nilay
authors.initials: N
authors.lastname: Mukherjee
authors.forename: Ronald R
authors.initials: RR
authors.lastname: Cobb
authors.forename: Predrag
authors.initials: P
authors.lastname: Bursac
authors.forename: Amanda
authors.initials: A
authors.lastname: York-Ely
mesh_terms: D000818:Animals; D000917:Antibody Formation; D001696:Biomechanical Phenomena; D016025:Bone Transplantation / Q000276:immunology*; D002417:Cattle; D005260:Female; D012756:Sheep; D013242:Sterilization / Q000379:methods*; D013977:Tibia / Q000276:immunology / Q000473:pathology / Q000637:transplantation*; D014183:Transplantation, Heterologous / Q000276:immunology*; D014184:Transplantation, Homologous / Q000276:immunology