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  • Anti-tumor effect of monkshood polysaccharide with adriamycin long circulating temperature-sensitive liposome and its mechanism

    Author(s)
    Dong, LF
    Zhang, YJ
    Liu, JS
    Song, SX
    Hou, J
    Lu, ZJ
    Griffith University Author(s)
    Dong, Lan-feng
    Year published
    2006
    Metadata
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    Abstract
    AIM: To observe the synergic action of monkshood polysaccharide (MPS) and adriamycin (ADM) long circulating temperature-sensitive liposome (ALTSL) in targeting therapy for H22 tumor-bearing mice and explore the mechanism. METHODS: The anti-tumor activity was evaluated by using the tumor's weight as an index. The life prolongation rate of mice was calculated according to the survival time of the tumor-bearing mice. The killer activity of NK cells and the lymphocyte transformation rate were detected by the LDH release assay and MTT colorimetry, respectively. The apoptosis of tumor cells and the expressions of p53, Fas, Fas-L ...
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    AIM: To observe the synergic action of monkshood polysaccharide (MPS) and adriamycin (ADM) long circulating temperature-sensitive liposome (ALTSL) in targeting therapy for H22 tumor-bearing mice and explore the mechanism. METHODS: The anti-tumor activity was evaluated by using the tumor's weight as an index. The life prolongation rate of mice was calculated according to the survival time of the tumor-bearing mice. The killer activity of NK cells and the lymphocyte transformation rate were detected by the LDH release assay and MTT colorimetry, respectively. The apoptosis of tumor cells and the expressions of p53, Fas, Fas-L and caspase-3 were analyzed by flow cytometry. The expressions of IL-2 mRNA and IL-12 mRNA in spleen lymphocytes were determined by RT-PCR. The pathologic changes of tumor, heart, liver and kidney tissues of the tumor-bearing mice were observed under light microscope. RESULTS: Compared with the adriamycin liposome group, the anti-tumor effects were enhanced in (MPS+ALTSL) group with tumor growth inhibitory rate up to 80.4%. The survival time of the tumor-bearing mice in ALTSL and (MPS+ALTSL) groups was significantly prolonged compared with the ADM group (P<0.01). The killer activity of NK cells was higher in ALTSL group than in the NS and ADM groups, and was highest in (MPS+ALTSL) group. The lymphocyte transformation rate of (MPS+ALTSL) group was markedly increased (P<0.01) as compared with the ADM group. The result of RT-PCR indicated that the expressions of IL-2 mRNA and IL-12 mRNA in lymphocytes in the adriamycin long circulating liposome (ALCL) group were significantly higher than those in the ADM group. Expressions of IL-2 mRNA and IL-12 mRNA was much higher in (MPS+ALTSL) group than in ALTSL group. The pathological examination indicated that in (MPS+ALTSL) group, more lymphocytes and monocytes were found in tumor tissue. CONCLUSION: ALTSL can increase the anti-tumor effect and decrease the side-effects (such as the cytotoxicity) of ADM. MPS combined with ALTSL can enhance killer activity of NK cells and transformation of T cells, supporting their synergic anti-tumor effect.
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    Journal Title
    Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi
    Volume
    22
    Issue
    4
    Publisher URI
    http://www.ncbi.nlm.nih.gov/pubmed/16806008
    Publication URI
    http://hdl.handle.net/10072/33538
    Collection
    • Journal articles

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