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Article
2021

Resveratrol is a natural inhibitor of human intestinal mast cell activation and phosphorylation of mitochondrial ERK1/2 and STAT3

Abstract

Mast cells play a critical role as main effector cells in allergic and other inflammatory diseases. Usage of anti-inflammatory nutraceuticals could be of interest for affected patients. Resveratrol, a natural polyphenol found in red grapes, is known for its positive properties. Here, we analyzed the effects of resveratrol on FcεRI-mediated activation of mature human mast cells isolated from intestinal tissue (hiMC). Resveratrol inhibited degranulation and expression of cytokines and chemokines such as CXCL8, CCL2, CCL3, CCL4, and TNF-α in a dose-dependent manner. Further, resveratrol inhibited the phosphorylation of extracellular signal-regulated kinase (ERK) 1/2 and signal transducer and activator of transcription (STAT) 3. ERK1/2 is known to be involved in cytokine expression of hiMC and to directly interact with STAT3. Mitochondrial STAT3 is phosphorylated by ERK1/2 and contributes to mast cell degranulation. We were able to isolate mitochondrial fractions from small hiMC numbers and could show that activation of mitochondrial STAT3 and ERK1/2 in hiMC was also inhibited by resveratrol. Our results indicate that resveratrol inhibits hiMC activation by inhibiting the phosphorylation of mitochondrial and nuclear ERK1/2 and STAT3, and it could be considered as an anti-inflammatory nutraceutical in the treatment of mast cell-associated diseases.

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International journal of molecular sciences, 22 (2021), 14, 7640. https://doi.org/10.3390/ijms22147640

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English

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570 Biology

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Sustainable Development Goals

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@article{Bilotta2021, url = {https://hohpublica.uni-hohenheim.de/handle/123456789/16603}, doi = {10.3390/ijms22147640}, author = {Bilotta, Sabrina and Paruchuru, Lakshmi Bhargavi and Feilhauer, Katharina et al.}, title = {Resveratrol Is a Natural Inhibitor of Human Intestinal Mast Cell Activation and Phosphorylation of Mitochondrial ERK1/2 and STAT3}, journal = {International journal of molecular sciences}, year = {2021}, volume = {22}, number = {14}, }

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