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Erschienen in: Lasers in Medical Science 1/2021

04.05.2020 | Original Article

Conditioned media from blue light-emitting diode–exposed fibroblasts have an anti-inflammatory effect in vitro

verfasst von: Phil-Sun Oh, Eun-Mi Kim, SeokTae Lim, Myung-Hee Sohn, Hwan-Jeong Jeong

Erschienen in: Lasers in Medical Science | Ausgabe 1/2021

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Abstract

We have previously reported the protective effects of blue light-emitting diode (BLED)–stimulated cell metabolites on cell injury. To further examine the effect of conditioned media (CM) derived from BLED (5 J/cm2)-exposed human normal fibroblasts (CMBL5) for clinical application, we have used the choline chloride and phenol red–free media and then concentrated CMBL5 using a centrifugal filter unit. The collected CMBL5-lower part (CMBL5-LO) has evaluated the inflammatory protein expression profile in LPS-stimulated RAW264.7 cells. Comprehensive metabolomic profiling of CMBL5-LO was carried out using hybrid tandem mass spectrometry. Treatment with CMBL5-LO showed the cytoprotective effect on apoptotic cell death, but rather increased apoptotic cells after treatment with CMBL5-upper part (CMBL5-UP). In addition, CMBL5-LO inhibited several chemo-attractants, including interleukin (IL)-6, macrophage inflammatory protein (MIP)-2, chemokine (C-C motif) ligand 5 (CCL5), granulocyte colony-stimulating factor (GCSF), and monocyte chemoattractant protein-1 (MCP-1) expression. Pro-inflammatory nitric oxide was decreased after CMBL5-LO treatment, but not by CMBL5-UP treatment. Interestingly, treatment with CMBL5-LO stimulated expression of heme oxygenase-1, indicating its anti-inflammatory property. Most endoplasmic reticulum (ER) stress proteins except for transcription factor C/EBP homologous protein (CHOP) were highly expressed after irradiation with BLED in cells. Further studies are needed to examine the precise mechanism by CMBL5-LO in cells.
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Metadaten
Titel
Conditioned media from blue light-emitting diode–exposed fibroblasts have an anti-inflammatory effect in vitro
verfasst von
Phil-Sun Oh
Eun-Mi Kim
SeokTae Lim
Myung-Hee Sohn
Hwan-Jeong Jeong
Publikationsdatum
04.05.2020
Verlag
Springer London
Erschienen in
Lasers in Medical Science / Ausgabe 1/2021
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-020-03018-x

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