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Updated: Jul 31, 2026
Proteomic Analysis of Human Macrophage Polarization Under a Low Oxygen Environment
Published on: January 7, 2019
Biochemical analyses of human macrophages activated by polyethylene particles retrieved from interface membranes
J Chiba1, W J Maloney, K Inoue
1Department of Orthopaedic Surgery, Tokyo Women's Medical University, Tokyo, Japan.
Abstract:
Human monocyte/macrophages (M/M) were exposed to retrieved ultra-high molecular weight polyethylene (UHMWPE) particles isolated after enzymatic digestion of revision total hip arthroplasty interface membrane tissue samples. The cellular response of human M/M to UHMWPE was compared with the response of these cells to latex particles and culture medium alone. We incubated macrophages in good contact with polyethylene particles using an inverted culture system. Chamber slides on which macrophages were attached were filled with polyethylene particle suspension and sealed with plastic sheets. After the slides were inverted, the incubation was completed. Retrieved UHMWPE particulate debris stimulated human M/M to secrete interleukin (IL)-1beta, IL-6, and tumor necrosis factor (TNF)-alpha. Human M/M exposed to retrieved UHMWPE particles secreted significantly more IL-1beta, IL-6, and TNF-alpha compared with M/M exposed to latex particles (P<.05).
Insights
Human monocyte/macrophages exposed to ultra-high molecular weight polyethylene particles from hip implants released higher levels of inflammatory cytokines, including interleukin-1beta, interleukin-6, and tumor necrosis factor-alpha, compared to latex particles.
Area of Science:
- Biomaterials Science
- Immunology
- Orthopedic Surgery
Background:
- Revision total hip arthroplasty involves the use of ultra-high molecular weight polyethylene (UHMWPE).
- Wear debris from UHMWPE can be released at the implant interface.
- Macrophage activation by particulate debris is a key factor in aseptic loosening.
Purpose of the Study:
- To investigate the inflammatory response of human monocyte/macrophages (M/M) to retrieved UHMWPE particles.
- To compare the M/M response to UHMWPE particles with their response to latex particles.
Main Methods:
- Human M/M were isolated and cultured.
- Cells were exposed to UHMWPE particles retrieved from revision hip arthroplasty tissues using an inverted culture system.
- Cellular response was assessed by measuring the secretion of interleukin (IL)-1beta, IL-6, and tumor necrosis factor (TNF)-alpha.
Main Results:
- Retrieved UHMWPE particles significantly stimulated M/M to secrete IL-1beta, IL-6, and TNF-alpha.
- The secretion of these cytokines was significantly higher compared to M/M exposed to latex particles (P<.05).
Conclusions:
- UHMWPE particulate debris from revision hip arthroplasty induces a potent inflammatory response in human macrophages.
- This inflammatory response, mediated by cytokine secretion, may contribute to periprosthetic osteolysis and implant loosening.
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