Analgesic Effects and the Mechanisms of Anti-Inflammation of Hispolon in Mice

Institute of Chinese Pharmaceutical Sciences, Taichung 40402, Taiwan.
Evidence-based Complementary and Alternative Medicine (Impact Factor: 1.88). 04/2009; 2011(1741-427X):478246. DOI: 10.1093/ecam/nep027
Source: PubMed


Hispolon, an active ingredient in the fungi Phellinus linteus was evaluated with analgesic and anti-inflammatory effects. Treatment of male ICR mice with hispolon (10 and 20 mg/kg) significantly inhibited the numbers of acetic acid-induced writhing response. Also, our result showed that hispolon (20 mg/kg) significantly inhibited the formalin-induced pain in the later phase (P<.01). In the anti-inflammatory test, hispolon (20 mg/kg) decreased the paw edema at the fourth and fifth hour after λ-carrageenin (Carr) administration, and increased the activities of superoxide dismutase (SOD), glutathione peroxidase (GPx) and glutathione reductase (GRx) in the liver tissue. We also demonstrated that hispolon significantly attenuated the malondialdehyde (MDA) level in the edema paw at the fifth hour after Carr injection. Hispolon (10 and 20 mg/kg) decreased the nitric oxide (NO) levels on both the edema paw and serum level at the fifth hour after Carr injection. Also, hispolon (10 and 20 mg/kg) diminished the serum TNF-α at the fifth hour after Carr injection. The anti-inflammatory mechanisms of hispolon might be related to the decrease in the level of MDA in the edema paw by increasing the activities of SOD, GPx and GRx in the liver. It probably exerts anti-inflammatory effects through the suppression of TNF-α and NO.

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Available from: Wen-Huang Peng
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    • "Hispolon (6-(3,4-dihydroxy-phenyl)-4-hydroxy-hexa-3,5-dien- 2-one; C 12 H 12 O 4 ), a yellow pigment, is isolated from the Phellinus igniarius [5]. Hispolon has hepatoprotective [6], anti-inflammatory [7], antimetastatic [8], and antiproliferative effects [9]. The antitumor activity of this phenol compound (hispolon) has attracted many attentions [8] [9] [10] [11] [12]. "
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    ABSTRACT: Hispolon is isolated from P. igniarius and exhibits antitumor activity. Here, we explored the effects of hispolon on the lung cancer A549 and H661 cells. Cells were incubated with various concentrations of hispolon (0, 5, 10, 20, 40, 80 or 160 μM) for 12, 24, 48 or 72 h. Cell viability was examined by MTT assay. Cell cycle and apoptosis assay were assessed by flow cytometry. Hispolon decreased cell viability in a dose- and time-dependent manner. The cell cycle distribution showed that hispolon enhanced the accumulations of the cells in G0/G1 phase. Mechanically, hispolon decreased the expression of G1-S transition-related proteins: Cyclin D1, cyclin E, CDK2, CDK4 and CDK6, but increased the expression of CDK inhibitor p21CIP1 and p27 Kip1. Moreover, hispolon induced cell apoptosis through activation of the mitochondrial pathway, evidenced by the loss of mitochondrial membrane potential, the release of cytochrome c into cytosol, and the cleavage of caspase-9, caspase-3 and poly (ADP-ribose) polymerase (PARP) in hispolon-treated cells. Additionally, hispolon enhanced the expression of p53, specific silencing of which almost completely reversed hispolon-mediated antitumor activity. Moreover, hispolon treatment was more effective on H661 cells than on A549 cells in inhibiting cell viability and inducing cell apoptosis. Our results indicate that hispolon inhibits the cell viability, induces G0/G1 cell cycle arrest and apoptosis in lung cancer cells and p53 plays a critical role in hispolon-mediated antitumor activity.
    Preview · Article · Sep 2014 · Biochemical and Biophysical Research Communications
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    • "Recent studies have shown that PL has anti-inflammatory , antimutagenicity, and antibacterial effects, stimulates immunity, and inhibits tumor growth and metastasis (Lee et al., 2005). In our previous study, we found that hispolon had shown hepatoprotective (Huang et al., 2012), anti-inflammatory (Chang et al., 2011), antiproliferative (Huang et al., 2011), and antimetastatic effects (Huang et al., 2010). However, there have been no reports on the antiproliferative effects of hispolon in human leukemia cancer cells. "
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    ABSTRACT: Hispolon (a phenolic compound isolated from Phellinus linteus) has been shown to possess strong antioxidant, anti-inflammatory, anticancer, and antidiabetic properties. In this study, we investigated the antiproliferative effect of hispolon on human hepatocellular carcinoma NB4 cells using the MTT assay, DNA fragmentation, DAPI (4, 6-diamidino-2-phenylindole dihydrochloride) staining, and flow cytometric analysis. Hispolon inhibited the cellular growth of NB4 cells in a dose-dependent manner through the induction of cell cycle arrest at G0/G1 phase measured using flow cytometric analysis and apoptotic cell death, as demonstrated by DNA laddering. Exposure of NB4 cells to hispolon-induced apoptosis-related protein expressions, such as the cleavage form of caspase 3, caspase 8, caspase 9, poly (ADP ribose) polymerase, and the proapoptotic Bax protein. Western blot analysis showed that the protein levels of extrinsic apoptotic proteins (Fas and FasL), intrinsic related proteins (cytochrome c), and the ratio of Bax/Bcl-2 were increased in NB4 cells after hispolon treatment. Hispolon-induced G0/G1-phase arrest was associated with a marked decrease in the protein expression of p53, cyclins D1, and cyclins E, and cyclin-dependent kinases (CDKs) 2, and 4, with concomitant induction of p21waf1/Cip1 and p27Kip1. We conclude that hispolon induces both of extrinsic and intrinsic apoptotic pathways in NB4 human leukemia cells in vitro.
    Full-text · Article · Nov 2013 · The American Journal of Chinese Medicine
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    • "MDA from -carrageenan-induced edema foot was evaluated by the thiobarbituric acid reacting substances (TRARS) method (Chang et al., 2009). Briefly, MDA reacted with thiobarbituric acid in the acidic high temperature and formed a red-complex TBARS. "
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    ABSTRACT: Antrodia cinnamomea is a folk medicinal mushroom commonly used in Taiwan for the treatment of several types of cancers and inflammatory disorders. This study aimed to explore the folk use of Antrodia cinnamomea on pharmacological grounds to characterize the scientific basis of anti-inflammatory activity. The in vitro anti-inflammatory activity of methanol extract of liquid cultured mycelia of Antrodia cinnamomea (MEMAC) was judged by the measurement of the produced levels of pro-inflammatory cytokines and mediators in lipopolysaccharide (LPS)-stimulated RAW264.7 cells and human peripheral blood mononuclear cells (PBMCs). The in vivo anti-inflammatory activity of MEMAC was evaluated using carrageenan-induced hind paw edema in mice, the activities of catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx) in the liver and the levels of malondialdehyde (MDA) and nitrite oxide (NO) in the edema paw. The levels of serum NO and TNF-α were measured. The MEMAC was administered at the concentrations of 100, 200, and 400mg/kg body weight of mouse. MEMAC inhibited the production of LPS-induced pro-inflammatory cytokines (TNF-α and IL-6) and mediators (NO and PGE2) in RAW264.7 cells and human PBMCs. Data from Western blotting showed that MEMAC decreased the levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) protein expression in LPS-stimulated RAW264.7 macrophages. In vivo, MEMAC showed significant (p<0.05) anti-inflammatory activity by reducing the edema volume in carrageenan-induced paw edema in mice. MEMAC (400mg/kg) also reduced the carrageenan-induced leukocyte migration (50.92±5.71%). Further, MEMAC increased the activities of CAT, SOD, and GPx in the liver tissue and decreased the levels of serum NO and TNF-α after carrageenan administration. Our results showed that MEMAC has the anti-inflammatory property both in vitro and in vivo, suggesting that it may be a potential preventive or therapeutic candidate for the treatment of inflammatory disorders.
    Full-text · Article · Jun 2011 · Journal of ethnopharmacology
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