Panahipour, Layla; Oladzad Abbasabadi, Azarakhsh; Gruber, Reinhard (2023). Oral Cell Lysates Reduce the Inflammatory Response of Activated Macrophages. Journal of clinical medicine, 12(4) MDPI 10.3390/jcm12041701
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Necrotic cell damage occurs as a consequence of invasive dental procedures. Loss of membrane integrity being the hallmark of necrotic cells leads to the release of cytoplasmic and membranous components. Macrophages are predestined to respond to lysates originating from necrotic cells. Here, we implement necrotic lysates from human gingival fibroblasts, HSC2, and TR146 oral epithelial cell lines, and RAW264.7 macrophage cell lines to be tested for their potential to modulate the inflammatory response of macrophages. To this aim, necrotic cell lysates were prepared by sonication or freezing/thawing of the respective cell suspension. Necrotic cell lysates were tested for their potential to modulate the lipopolysaccharide (LPS)-induced expression of inflammatory cytokines using RAW264.7 macrophages as a bioassay. We show here that all necrotic cell lysates, independent of the origin and the preparation way, reduced the expression of IL1 and IL6 in LPS-induced RAW264.7 macrophages, most obviously shown for TR146 cells. This finding was supported in a bioassay when macrophages were exposed to poly (I:C) HMW, an agonist of TLR-3. Consistently, all necrotic lysates from gingival fibroblasts, HSC2, TR146, and RAW264.7 cells reduced the nuclear translocation of p65 in LPS-exposed macrophages. This screening approach supports the overall concept that necrotic cell lysates can modulate the inflammatory capacity of macrophages.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology |
UniBE Contributor: |
Gruber, Reinhard |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
2077-0383 |
Publisher: |
MDPI |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
02 Mar 2023 13:49 |
Last Modified: |
03 Mar 2023 09:38 |
Publisher DOI: |
10.3390/jcm12041701 |
PubMed ID: |
36836236 |
Uncontrolled Keywords: |
bioassay cell lysates gingival fibroblasts inflammation macrophages necrosis oral cells oral epithelial cells |
BORIS DOI: |
10.48350/179248 |
URI: |
https://boris.unibe.ch/id/eprint/179248 |
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