title: MMP-2, MMP-9 and their inhibitors TIMP-2 and TIMP-1 production by human monocytes in vitro in the presence of different forms of hydroxyapatite particles.
abstract: After calcium-phosphates biomaterials based implantation like hydroxyapatite (HA) coating, particles are released in the periprosthetic tissues. Wear-debris induced fibrous membranes contain macrophage subsets that can produce metalloproteinases (MMPs), which are considered to be key enzymes in extra-cellular matrix turnover. Tissue inhibitors of metalloproteinases (TIMPs) are important regulator of MMPs activity. Interleukin-1 mainly produced by monocytes can also regulate MMPs production. In the present work, we have evaluated the effect of HA particles characteristics (size, shape and sintering temperature) on the MMP-2, -9 and their respective inhibitors TIMP-2, -1 production. Our results demonstrate that sintering temperature (that modify crystal size and surface area) have little effect on MMPs and TIMPs production. Non-phagocytable particles induced more MMP-9, although phagocytable particles induced more IL-1beta release. The shape of the particles was the most important factor since needle-shaped particles induced the most significant up-regulated expression of MMPs and IL-1beta.
authors.affiliation: Laboratoire de Microscopie Electronique, INSERM ERM 0203, IFR 53, UFR Sciences, 21, Rue Clément Ader, BP 138, Cedex 2, 51685 Reims, France. patrice.laquerriere@univ-reims.fr
authors.forename: Patrice
authors.initials: P
authors.lastname: Laquerriere
authors.forename: Alexia
authors.initials: A
authors.lastname: Grandjean-Laquerriere
authors.forename: Salima
authors.initials: S
authors.lastname: Addadi-Rebbah
authors.forename: Edouard
authors.initials: E
authors.lastname: Jallot
authors.forename: Dominique
authors.initials: D
authors.lastname: Laurent-Maquin
authors.forename: Patrick
authors.initials: P
authors.lastname: Frayssinet
authors.forename: Moncef
authors.initials: M
authors.lastname: Guenounou
mesh_terms: D001483:Base Sequence; D017931:DNA Primers; D017886:Durapatite / Q000494:pharmacology*; D006801:Humans; D020778:Matrix Metalloproteinase 2 / Q000096:biosynthesis* / Q000235:genetics; D020780:Matrix Metalloproteinase 9 / Q000096:biosynthesis* / Q000235:genetics; D061965:Matrix Metalloproteinase Inhibitors; D009000:Monocytes / Q000187:drug effects* / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000096:biosynthesis* / Q000235:genetics / Q000502:physiology; D019716:Tissue Inhibitor of Metalloproteinase-2 / Q000096:biosynthesis* / Q000235:genetics / Q000502:physiology
chemical_list: D017931:DNA Primers; D061965:Matrix Metalloproteinase Inhibitors; D019715:Tissue Inhibitor of Metalloproteinase-1; D019716:Tissue Inhibitor of Metalloproteinase-2; D017886:Durapatite; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9