In vitro: |
Asian Pacific journal of cancer prevention: APJCP, 2015, 16(13):5371-5376. | Antioxidant Effect of Berberine and its Phenolic Derivatives Against Human Fibrosarcoma Cells.[Reference: WebLink] | METHODS AND RESULTS:
Berberine (B1), isolated from stems of Coscinium fenestratum (Goetgh.) Colebr, was used as a principle structure to synthesize three phenolic derivatives: berberrubine (B2) with a single phenolic group, berberrubine chloride (B3) as a chloride counter ion derivative, and 2,3,9,10-tetrahydroxyberberine chloride (B4) with four phenolic groups, to investigate their direct and indirect antioxidant activities. For DPPH assay, compounds B4, B3, and B2 showed good direct antioxidant activity (IC50 values=10.7±1.76, 55.2±2.24, and 87.4±6.65 μM, respectively) whereas the IC50 value of berberine was higher than 500 μM. Moreover, compound B4 exhibited a better DPPH scavenging activity than BHT as a standard antioxidant (IC50=72.7±7.22 μM) due to the ortho position of hydroxyl groups and its capacity to undergo intramolecular hydrogen bonding.
CONCLUSIONS:
For cytotoxicity assay against human fibrosarcoma cells (HT1080) using MTT reagent, the sequence of IC50 value at 7-day treatment stated that B1. |
|