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LPS和IL-2对合浦珠母贝血细胞iNOS活性的影响
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LPS和IL-2对合浦珠母贝血细胞iNOS活性的影响
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熊训浩,谢莉萍,张荣庆
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    清华大学生物科学与技术系海洋生物技术研究所
通讯作者:
张荣庆
Effects of LPS and IL-2 on Inducible Nitric Oxide Synthase Activity of Pearl Oyster (Pinctada fucata) Hemocytes Culture
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    建立了一种合浦珠母贝血细胞原代培养方法,为贝类免疫学研究提供实验平台。通过台盼兰染色法检测细胞活力,结果显示: 7 d内细胞生长状态稳定,并且培养基中的FBS对细胞生长活力没有显著影响。以细胞中iNOS活性为检测指标,详细研究了LPS和IL-2对合浦珠母贝血细胞的激活作用。结果表明:LPS和IL-2对iNOS活性的诱导作用表现出浓度和时间依赖的特征。刺激后36 h左右iNOS活性达到最大,LPS和IL-2的最佳诱导剂量范围分别为1~10 g/mL和10~100 ng/mL,并且IL-2对iNOS活性的激活作用较LPS快。
    合浦珠母贝  /  诱导型一氧化氮合成酶  /  脂多糖  /  白细胞介素-2
    A useful experimental system for primary hemocytes cultures using pearl oyster(Pinctada fucata) is established. Seven days after initiation of the culture, the viability of hemocytes remained constant as measured by the trypan blue exclusion technique. Survival of cells cultured in FBS-supplemented L-15 medium was similar to that of cultured in L-15 medium not containing FBS. The effects of LPS and IL-2 on the pearl oyster hymocytes cultures were examined through determination of the iNOS activities. LPS and IL-2 were found to induce the iNOS activities in a dose and time-dependent manner. The best response in the activity of iNOS was obtained after about 36 hours of stimulation, and the optimized concentrations of LPS and IL-2 were 1~10 ?滋g/mL and 10~100 ng/mL, respectively. The results also indicate that iNOS activity would be induced more rapidly by IL-2 than by LPS.
    熊训浩;谢莉萍;张荣庆. LPS和IL-2对合浦珠母贝血细胞iNOS活性的影响. 科技导报, 2007 , 25 (0713) : 45 -48 .
    . Effects of LPS and IL-2 on Inducible Nitric Oxide Synthase Activity of Pearl Oyster (Pinctada fucata) Hemocytes Culture[J]. Science & Technology Review, 2007 , 25 (0713) : 45 -48 .

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    2种不同金属材料的力学参数

    Family
    属数
    Number of
    genus
    种数
    Number of
    species
    占总种数比例
    Percentage of
    total species (%)

    Genus
    种数
    Number of
    species
    占总种数比例
    Percentage of total
    species (%)
    鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
    小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
    多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
    红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
    小菇属 Mycena 11 5.26
    光柄菇属 Pluteus 5 2.39
    红菇属 Russula 17 8.13
    栓菌属 Trametes 5 2.39
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