Seven previously undescribed triterpenes (1-7), as well as one triterpene (8) previously described as a synthetic product, were isolated from the antler-shaped fruiting body of Ganoderma lucidum. Their structures were established based on comprehensive spectroscopy analysis. At a concentration of 10 μM, (24E)-3-oxo-15α-acetoxy-lanosta-7,9(11),24-trien-26-al (3) and (24R,25S)-3-oxo-lanosta-7,9(11)-dien-25-ethoxyl-24,26-diol (5) provided significant protection against acetaminophen-induced necrosis in human HepG2 liver cancer cells, and the cell survival rates were 69.7 and 76.1% respectively, similar to that of the positive control (glutathione, 72.1%). Based on the present results, these compounds could be potential hepatoprotective agents.
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Triterpenes from antler-shaped fruiting body of Ganoderma lucidum and their hepatoprotective activities.
Phytochemistry
August 2024
State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Polymorphic Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing, 100050, China. Electronic address:
Seven previously undescribed triterpenes (1-7), as well as one triterpene (8) previously described as a synthetic product, were isolated from the antler-shaped fruiting body of Ganoderma lucidum. Their structures were established based on comprehensive spectroscopy analysis. At a concentration of 10 μM, (24E)-3-oxo-15α-acetoxy-lanosta-7,9(11),24-trien-26-al (3) and (24R,25S)-3-oxo-lanosta-7,9(11)-dien-25-ethoxyl-24,26-diol (5) provided significant protection against acetaminophen-induced necrosis in human HepG2 liver cancer cells, and the cell survival rates were 69.
View Article and Find Full Text PDFImmuno-potentiating effects of the antler-shaped fruiting body of Ganoderma lucidum (Rokkaku-Reishi).
Biosci Biotechnol Biochem
April 2004
Fujisaki Institute, Hayashibara Biochemical Laboratories, Inc., Okayama, Japan.
The immuno-potentiating effects of the antler-shaped fruiting body of Ganoderma lucidum (Rokkaku-Reishi, RR), which has been used as a traditional supplement for human health, were investigated in mice. BALB/c mice were administered orally with RR for 3 days at a dose of 50 mg/kg or 500 mg/kg, and interferon-gamma (IFN-gamma) production by splenocytes in response to lipopolysaccharide (LPS) was examined on day 4. The oral administration of 500 mg/kg of RR resulted in a significant increase (p<0.
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