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Article Publish Status: FREE
Abstract Title:

Phytoncide Extracted from Pinecone Decreases LPS-Induced Inflammatory Responses in Bovine Mammary Epithelial Cells.

Abstract Source:

J Microbiol Biotechnol. 2016 Mar ;26(3):579-87. PMID: 26608166

Abstract Author(s):

Sukyung Kang, Jae Sung Lee, Hai Chon Lee, Michael C Petriello, Bae Yong Kim, Jeong Tae Do, Dae-Seog Lim, Hong Gu Lee, Sung Gu Han

Article Affiliation:

Sukyung Kang

Abstract:

Mastitis is a prevalent inflammatory disease that remains one of the main causes of poor quality of milk. Phytoncides are naturally occurring anti-inflammatory compounds derived from plants and trees. To determine if treatment with phytoncide could decrease the severity of lipopolysaccharide (LPS)-induced inflammatory responses, mammary alveolar epithelial cells (MAC-T) were pretreated with phytoncide (0.02% and 0.04% (v/v)) followed by LPS treatment (1 and 25μg/ml). The results demonstrated that phytoncide downregulated LPS-induced pro-inflammatory cyclooxygenase-2 (COX-2) expression. Additionally, LPS-induced activation of ERK1/2, p38, and Akt was attenuated by phytoncide. Treatment of cells with known pharmacological inhibitors of ERK1/2 (PD98059), p38 (SB203580), and Akt (LY294002) confirmed the association of these signaling pathways with the observed alterations in COX-2 expression. Moreover, phytoncide attenuated LPS-induced NF-κB activation and superoxide production, and, finally, treatment with phytoncide increased Nrf2 activation. Results suggest that phytoncide can decrease LPS-induced inflammation in MAC-T cells.

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