| Description: |
Ergosterol peroxide exhibits anti-cancer, amoebicidal, anticomplementary, antibacterial, antiviral, anti-oxdiant, and anti-melanogenic activities. Ergosterol peroxide could as an anti-atherosclerosis agent, it exhibits hACAT-1 and Lp-PLA2 inhibitory effects, with inhibitory values of 51.6 +/- 0.9 and 51.7 +/- 1.2%, at a treatment concentration of 0.23 mM. Ergosterol peroxide has osteoclastogenesis inhibitory effect, it shows an inhibitory effect in a dose-dependent manner and an inhibition rate of up to 62% with low cytotoxicity, even at a concentration as low as 1.0 microg/mL. |
| In vitro: |
| Int. J. Med. Mushrooms, 2009, 11(3):249-57. | | Ergosterol Peroxide and 9,11-Dehydroergosterol Peroxide from Ling Zhi or Reishi Medicinal Mushroom, Ganoderma lucidum (W. Curt.: Fr.) P. Karst. (Aphyllophoromycetideae) Mycelia Inhibit the Growth of Human Breast Adenocarcinoma MCF-7 Cells[Reference: WebLink] |
METHODS AND RESULTS:
Two fungal steroids, namely, ergosterol peroxide (EP) and (9,11-dehydroergosterol peroxide (9(11)-DHEP), were isolated and identified from the mycelia of Ling Zhi or Reishi medicinal mushroom, Ganoderma lucidum, grown under submerged culture. Both EP and 9(11)-DHEP exhibited inhibitory effects on human breast adenocarcinoma MCF-7 cells. The nontumorigenic human breast MCF-10-2A cells were less susceptible to these two compounds.
CONCLUSIONS:
Flow cytometric analyses suggested that these two fungal steroids inhibited the growth of MCF-7 cells by inducing cell apoptosis. | | Arch Pharm Res. 2005 May;28(5):541-5. | | Ergosterol peroxide from flowers of Erigeron annuus L. as an anti-atherosclerosis agent.[Pubmed: 15974439] |
METHODS AND RESULTS:
Flowers of Erigeron annuus L. were extracted with 80% aqueous MeOH, and the concentrated extract was partitioned with EtOAc, n-BuOH, and H2O. Repeated silica gel and ODS column chromatography of the EtOAc fraction led to the isolation of a sterol, through activity-guided fractionation, using ACAT inhibitory activity measurements. From the physico-chemical data, including NMR, MS, and IR, the chemical structure of the compound was determined to be an ergosterol peroxide (1), which has been isolated for the first time from this plant.
CONCLUSIONS:
This compound exhibited hACAT-1 and Lp-PLA2 inhibitory effects, with inhibitory values of 51.6 +/- 0.9 and 51.7 +/- 1.2%, at a treatment concentration of 0.23 mM. |
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