A Human Whole Blood Culture System Reveals Detailed Cytokine Release Profiles of Implant Materials.

Klimosch, Sascha Niclas; Weber, Marbod; Caballé-Serrano, Jordi; Knorpp, Thomas; Munar-Frau, Antonio; Schaefer, Birgit Margareta; Schmolz, Manfred (2024). A Human Whole Blood Culture System Reveals Detailed Cytokine Release Profiles of Implant Materials. Medical devices, 17, pp. 23-36. 10.2147/MDER.S441403

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INTRODUCTION

Common in vitro cell culture systems for testing implant material immune compatibility either rely on immortal human leukocyte cell lines or isolated primary cells. Compared to in vivo conditions, this generates an environment of substantially reduced complexity, often lacking important immune cell types, such as neutrophil granulocytes and others. The aim of this study was to establish a reliable test system for in vitro testing of implant materials under in vivo-like conditions.

METHODS

Test materials were incubated in closed, CO2-independent, tube-based culture vessels containing a proprietary cell culture medium and human whole blood in either a static or occasionally rotating system. Multiplex cytokine analysis was used to analyze immune cell reactions.

RESULTS

To demonstrate the applicability of the test system to implant materials, three commercially available barrier membranes (polytetrafluoroethylene (PTFE), polycaprolactone (PCL) and collagen) used for dental, trauma and maxillofacial surgery, were investigated for their potential interactions with immune cells. The results showed characteristic differences between the static and rotated incubation methods and in the overall activity profiles with very low immune cell responses to PTFE, intermediate ones to collagen and strong reactions to PCL.

CONCLUSION

This in vitro human whole blood model, using a complex organotypic matrix, is an excellent, easily standardized tool for categorizing immune cell responses to implant materials. Compared to in vitro cell culture systems used for materials research, this new assay system provides a far more detailed picture of response patterns the immune system can develop when interacting with different types of materials and surfaces.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology

UniBE Contributor:

Caballé Serrano, Jordi

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1179-1470

Language:

English

Submitter:

Pubmed Import

Date Deposited:

10 Jan 2024 16:02

Last Modified:

11 Jan 2024 17:14

Publisher DOI:

10.2147/MDER.S441403

PubMed ID:

38196508

Uncontrolled Keywords:

barrier membranes cytokines immune cells in vitro material testing whole blood cultures

BORIS DOI:

10.48350/191448

URI:

https://boris.unibe.ch/id/eprint/191448

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