Abstract
Yam (Dioscorea batatas) mucopolysaccharide (YMP) was examined for the ability to induce secretory and cellular responses in murine peritoneal macrophages. When macrophages were treated with various doses (10-100 μg/ml) of YMP for 48 h, a significant cytotoxicity against B 16 cells was observed. YMP also increased the myeloperoxidase activity and the production of H2O2, O2-, nitric oxide (NO) and tumor necrosis factor (TNF-α). However, there was a little alteration on the production of IFN-γ. These results indicate that reactive oxygen intermediates (ROI), reactive nitrogen intermediates (RNI) and TNF-α are likely major mediators of cytotoxic activity of YMP-treated macrophages.
Original language | English |
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Pages (from-to) | 629-637 |
Number of pages | 9 |
Journal | Fitoterapia |
Volume | 73 |
Issue number | 7-8 |
DOIs | |
Publication status | Published - 2002 Dec |
Bibliographical note
Funding Information:This work was supported by the National Research Lab program through Functional Biopolymer Lab at Yonsei University (2000-N-NL-01-C-299).
All Science Journal Classification (ASJC) codes
- Pharmacology
- Drug Discovery