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BMC Complementary Medicine and Therapies

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Open Access 01-12-2021 | Cytokines | Research article

Immunomodulatory and anti-inflammatory effects of Phellinus linteus mycelium

Authors: Mi-Rae Shin, Ji Hye Lee, Jin A Lee, Min Ju Kim, Hae-Jin Park, Byeong Wook Park, Seung Bo Seo, Seong-Soo Roh

Published in: BMC Complementary Medicine and Therapies | Issue 1/2021

Abstract

Background

The present study extensively aimed to evaluate the underlying mechanism of the immunomodulatory and anti-inflammatory effects of Phellinus linteus mycelium (PLM).

Methods

To assess whether PLM influences the production of markers related to inflammation, Lipopolysaccharide (LPS)-stimulated RAW264.7 cells were treated with PLM (50, 100, 200, and 500 μg/mL). Splenocyte, thymus, peritoneal exudate cells (PEC), and peripheral blood mononuclear cells (PBMC) were isolated from the Balb/c mice treated with Korean red ginseng or PLM once a day for 5 weeks. Moreover, all mice except normal mice were stimulated with 10% proteose peptone (PP) treated 3 days before the sacrifice and 2% starch treated 2 days before the sacrifice. Subsequently, the cytotropic substance was evaluated by using flow cytometry analysis and ELISA assay.

Results

PLM200 treatment significantly suppressed the production of nitric oxide (NO) and prostaglandin E2 (PGE2) and inhibited the release of proinflammatory cytokines such as interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α dose-dependently in the LPS-stimulated RAW264.7 cells. PLM200 supplementation showed a significant increase in IL-2, IL-12, and interferon (IFN)-γ production and upregulated the ratio of IFN-γ (T-helper type 1, Th1) to IL-4 (T-helper type 2, Th2) in splenocytes. After PLM200 treatment, the significant elevation of CD4⁺CD25⁺, CD4⁺&CD8⁺, and CD4⁺CD69⁺ treatment were detected in thymus. Moreover, CD4⁺ and CD4⁺CD69⁺ in PBMC and CD69⁺ in PEC were also shown in a significant increase.

Conclusions

Taken together, these results showed an immunomodulatory effect of PLM about an elevated INF-γ/IL4 ratio, as an index of Th1/Th2, as well as the anti-inflammatory effect in the LPS-stimulated RAW264.7 cells. Therefore, our findings demonstrate that PLM possesses immunostimulatory and anti-inflammatory effects.

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Title: Immunomodulatory and anti-inflammatory effects of Phellinus linteus mycelium
Authors: Mi-Rae Shin
Ji Hye Lee
Jin A Lee
Min Ju Kim
Hae-Jin Park
Byeong Wook Park
Seung Bo Seo
Seong-Soo Roh
Publication date: 01-12-2021
Publisher: BioMed Central
Keyword: Cytokines
Published in: BMC Complementary Medicine and Therapies / Issue 1/2021
Electronic ISSN: 2662-7671
DOI: https://doi.org/10.1186/s12906-021-03441-9

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Immunomodulatory and anti-inflammatory effects of Phellinus linteus mycelium

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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