Related Experiment Video
Updated: Jun 13, 2026
08:21
High-Dimensionality Flow Cytometry for Immune Function Analysis of Dissected Implant Tissues
Published on: September 15, 2021
Evaluation of cellular wound healing using flow cytometry and expanded polytetrafluroethylene implants
Joyce M Tsuji1, Joanne D Whitney, Ernesto J Tolentino
1Department of Biobehavioral Nursing and Health Systems, School of Nursing, University of Washington, Seattle, WA 98195, USA.
Summary
Flow cytometry effectively analyzes cells from polytetrafluoroethylene implants, aiding wound healing research. This method enhances cellular response characterization in therapeutic intervention studies.
Area of Science:
- Biomedical Engineering
- Immunology
- Wound Healing Research
Background:
- Characterizing cellular responses is crucial for evaluating therapeutic interventions in wound healing.
- Polytetrafluoroethylene (PTFE) implants are used in surgical infection risk patients.
- Standard histology methods may not fully capture cellular mechanisms in implants.
Purpose of the Study:
- To phenotype cells within PTFE implants using flow cytometry and immunohistochemistry.
- To optimize a single-cell isolation protocol from PTFE implants for flow cytometry.
- To validate flow cytometry as a method for analyzing cellular responses in wound healing.
Main Methods:
- Subcutaneous PTFE implants were explanted 8-9 days postoperatively.
- A modified mouse skin digestion protocol was used to obtain single cells.
- Cells were analyzed using flow cytometry and immunohistochemistry with fluorescent-labeled antibodies.
Main Results:
- Optimized protocol increased cell recovery per subject from 5.3 x 10(4) to 41 x 10(4) with 80% viability.
- Cells stained positively for CD3, CD20, CD31, CD34, CD68, CD133, and VEGF receptor type 2.
- Flow cytometry data correlated well with immunohistochemistry, particularly for CD68, the most prevalent antigen.
Conclusions:
- Flow cytometry is a viable method for analyzing cells isolated from PTFE implants.
- This technique provides valuable data for documenting and describing cellular wound healing responses.
- Flow cytometry complements traditional histology in evaluating implant-associated cellular mechanisms.
