Article Publish Status: FREE
Abstract Title:

Target Proteins of Phloretin for Its Anti-Inflammatory and Antibacterial Activities Against-Induced Skin Infection.

Abstract Source:

Molecules. 2019 Apr 3 ;24(7). Epub 2019 Apr 3. PMID: 30987239

Abstract Author(s):

Dasom Cheon, Jieun Kim, Dasom Jeon, Hang-Cheol Shin, Yangmee Kim

Article Affiliation:

Dasom Cheon


Phloretin is a natural chalcone with antibacterial and anti-inflammatory effects. This study investigated the anti-acne activity of phloretin against-induced skin infection and the potential target proteins of its anti-inflammatory and antibacterial effects. Phloretin potently inhibited the growth ofand-induced Toll-like receptor (TLR) 2-mediated inflammatory signaling in human keratinocytes. Secreted embryonic alkaline phosphatase assay confirmed that the anti-inflammatory activity of phloretin is associated with the-stimulated TLR2-mediated NF-κB signaling pathway. Phloretin significantly decreased the level of phosphorylated c-Jun N-terminal kinase (JNK), showing a binding affinity of 1.184 × 10M. We also found that phloretin binds with micromolar affinity toβ-ketoacyl acyl carrier protein (ACP) synthase III (KAS III), an enzyme involved in fatty acid synthesis. Conformation-sensitive native polyacrylamide gel electrophoresis showed that phloretin reduced KAS III-mediated 3-ketoacyl ACP production by over 66%. A docking study revealed that phloretin interacts with the active sites of JNK1 and KAS III, suggesting their involvement in-induced inflammation and their potential as targets for the antibacterial activity of phloretin. These results demonstrate that phloretin may be useful in the prevention or treatment ofinfection.

Study Type : In Vitro Study

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