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Macrophage activation by glycoprotein isolated from Dioscorea batatas
Pham Thi Thu Huong1, Young Jin Jeon
1Department of Pharmacology, Chosun University College of Medicine, Gwangju 501-759 Korea ; Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongwongun 363-883 Korea.
Toxicological Research
|November 27, 2013
Summary
Dioscorea batatas glycoprotein (GDB) significantly enhances macrophage recruitment and activation. GDB stimulates cytokine production by activating key signaling pathways like NF-κB and MAPK.
Area of Science:
- Immunology
- Biochemistry
- Pharmacology
Background:
- Macrophages are crucial immune cells involved in host defense.
- Understanding natural compounds that modulate macrophage function is important for immune health.
- Dioscorea batatas is a plant with traditional medicinal uses.
Purpose of the Study:
- To investigate the immunomodulatory effects of glycoprotein isolated from Dioscorea batatas (GDB).
- To determine if GDB activates macrophage function and elucidate its underlying mechanisms.
Main Methods:
- Assessed macrophage infiltration into the peritoneal cavity in vivo.
- Analyzed cytokine expression (IL-1β, TNF-α, IL-6) in mouse peritoneal macrophages.
- Utilized RT-PCR and ELISA in RAW264.7 cells to confirm cytokine induction.
- Investigated activation markers including NF-κB DNA binding and MAPK phosphorylation.
Main Results:
- GDB treatment significantly increased macrophage recruitment to the peritoneal cavity.
- GDB markedly enhanced the expression of pro-inflammatory cytokines IL-1β, TNF-α, and IL-6.
- GDB induced significant NF-κB DNA binding and MAPK phosphorylation in RAW264.7 cells.
Conclusions:
- Glycoprotein from Dioscorea batatas effectively stimulates macrophage activation.
- GDB enhances macrophage function through the induction of key signaling pathways.
- GDB shows potential as an immunomodulatory agent.
