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http://dx.doi.org/10.7732/kjpr.2021.34.5.411

Immuno-enhancing and Anti-obesity Effect of Abelmoschus manihot Root Extracts  

Yu, Ju Hyeong (Department of Medicinal Plant Resources, Andong National University)
Geum, Na Gyeong (Department of Medicinal Plant Resources, Andong National University)
Ye, Joo Ho (Department of Medicinal Plant Resources, Andong National University)
Jeong, Jin Boo (Department of Medicinal Plant Resources, Andong National University)
Publication Information
Korean Journal of Plant Resources / v.34, no.5, 2021 , pp. 411-419 More about this Journal
Abstract
In this study, we investigated in vitro immune-enhancing and anti-obesity activity of Abelmoschus manihot roots (AMR) in mouse macrophage RAW264.7 cells and mouse adipocytes 3T3-L1 cells. AMR increased the production of immunostimulatory factors such as nitric oxide (NO), inducible nitric oxide synthase (iNOS), interleukin-1β (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in RAW264.7 cells. The inhibition of toll like receptor (TLR) 2 and 4 blocked AMR-mediated production of immunostimulatory factors in RAW264.7 cells. In addition, the inhibition of mitogen-activated protein kinases (MAPKs) signaling pathway reduced AMR-mediated production of immunostimulatory factors. From these results, AMR is considered to have immune-enhancing activity through TLR2/4-mediated activation of MAPKs signaling pathway. In addition, AMR inhibited lipid accumulation and reduced the protein level such as CCAAT enhancer-binding protein alpha (CEBPα), peroxisome proliferator-activated receptor gamma (PPARγ), perilipin-1, adiponectin and fatty acid binding protein 4 (FABP4) associated with lipid accumulation in 3T3-L1 cells, indicating that AMR may have anti-obesity activity. Based on these results, AMR is expected to be used as a potential functional agent for immune enhancement and anti-obesity.
Keywords
Adipocytes; Abelmoschus manihot; Anti-obesity activity; Immune-enhancement; Macrophage;
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