Serum profile of pro- and anti-inflammatory cytokines in rats following implantation of low-temperature plasma-modified titanium plates

J Mater Sci Mater Med. 2012 May;23(5):1299-307. doi: 10.1007/s10856-012-4600-z. Epub 2012 Mar 9.

Abstract

Surface modification of Titanium (Ti) by low-temperature plasma influences cell-material interactions. Therefore, this study aimed at examining serum cytokine levels and associations after intramuscular implantation (n = 8 rats/group) of Ti-plates with Plasma Polymerized Allyl Amine (Ti-PPAAm), Plasma Polymerized Acrylic Acid (Ti-PPAAc), and without such layers (Ti-Controls). Pro-inflammatory (IL-2, IFNγ, IL-6) and anti-inflammatory (IL-4, IL-10, IL-13) cytokines were measured weekly for 56 days. Ti-PPAAm caused increased IL-2 (d7-14, d35), increased IFNγ (d35) and decreased IL-10 (d35, d49-56). Ti-PPAAc induced divergent anti-inflammatory cytokine changes with increased IL-4 (d28-56) and decreased IL-10 (d42-56). Ti-Controls elicited increased IL-2 (d42) and IFNγ (d35-42, d56). IL-6 was not detected and IL-13 only in three samples, thus they do not influence the response against these Ti implants. Correlation analysis revealed surface-dependent associations between cytokines indicating the involvement of different inflammatory cell populations. Concluding, different plasma modifications induce specific serum cytokine profiles and associations indicating distinct inflammatory responses.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / blood*
  • Anti-Inflammatory Agents / metabolism
  • Coated Materials, Biocompatible / pharmacology
  • Curing Lights, Dental
  • Cytokines / blood*
  • Cytokines / metabolism
  • Equipment and Supplies / adverse effects
  • Inflammation Mediators / blood*
  • Inflammation Mediators / metabolism
  • Male
  • Metabolome / drug effects
  • Plasma Gases / chemistry
  • Plasma Gases / pharmacology
  • Prosthesis Implantation* / adverse effects
  • Prosthesis Implantation* / rehabilitation
  • Rats
  • Rats, Inbred Lew
  • Surface Properties
  • Titanium / chemistry
  • Titanium / pharmacology*

Substances

  • Anti-Inflammatory Agents
  • Coated Materials, Biocompatible
  • Cytokines
  • Inflammation Mediators
  • Plasma Gases
  • Titanium