ArticlesAbstractPharmacognosy Research,2017,9,2,156-160.DOI:10.4103/0974-8490.204641Published:April 2017Type:Original ArticleAuthors:Khanh Nguyen, Jean Sparks, and Felix Omoruyi Author(s) affiliations:Khanh Nguyen, Jean Sparks, Felix Omoruyi Department of Life Sciences, Texas A&M University–Corpus Christi, Texas, USA Abstract:Background: Ligusticum porteri roots have been traditionally used in folk medicine, but the scientific basis is unclear. Objective: To investigate the cytotoxicity, antioxidant, and immunomodulatory effects of L. porteri root extract on human promyelocytic leukemia (HL‑60) cells and H2O2‑induced oxidative damaged HL‑60 cells. Materials and Methods: HL‑60 cells were incubated with different concentrations of root extract, and cells were harvested for viability assays on day 3 and 7. Cytokine levels (interferon‑gamma [IFN‑γ], interleukin‑2 [IL‑2], and interleukin-10 [IL‑10]) and antioxidant indexes (malondialdehyde [MDA], reduced glutathione [GSH], superoxide dismutase [SOD], and catalase [CAT]) in H2O2‑induced‑stressed HL‑60 were measured after 2 days. Results: The viability of HL‑60 challenged with H2O2 declined by 42% compared to unstressed cells. After 7 days of incubation with 200 or 400 μg/mL L. porteri, the viability of HL‑60 cells was two‑fold higher than the control. Stressed HL‑60 cells treated with 100, 200, and 400 μg/mL L. porteri reduced the lipid peroxidation by 12%–13%. We noted an increase in GSH levels, SOD and CAT activities in stressed HL‑60 supplemented with 400 μg/mL root extract. Treatment with 400 μg/mL L. porteri significantly (P < 0.05) increased IFN‑γ and IL‑2 in H2O2‑challenged cells. Conclusion: Our data do not support the use of the extract as an antiproliferation and differentiation therapy for acute promyelocytic leukemia. The protective function of L. porteri root extract against oxidative stress could occur through increasing GSH and higher expression of antioxidant enzymes. Keywords:Antioxidative, cytotoxicity, Human promyelocytic leukemia cells, Immune‑modulatory, Ligusticum porteriView:PDF (1.63 MB) PDF Thumbnails Document Outline Search Document Find Toggle Sidebar Previous Next Page: Fullscreen Print Download Current View Zoom Out Zoom In Automatic Zoom Actual Size Fit Page Full Width 50% 75% 100% 125% 150% 200% More Information Less Information Close Click here to download the PDF file. Images Change in the viability of human promyelocytic leukemia cells cells treated with different concentrations of Ligusticum porteri during 7 days of incubation. Figures that share different letters are significantly different (P < 0.05) KeywordsAntioxidativeCytotoxicityHuman promyelocytic leukemia cellsImmune‑modulatoryLigusticum porteri ‹ The Mealiness and Quality of Herbal Medicine: Licorice for Example up Evaluation of Antioxidant, Hypolipidemic, and Antiatherogenic Property of Lycopene and Astaxanthin in Atherosclerosis‑induced Rats ›