生物活性 | |||
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描述 | Diethylnitrosamine (DEN) is a representative chemical carcinogen. DEN induces hepatocarcinogenesis, increasing mitotic hepatocytes and leading to chronic inflammation. Chronic DEN injections lead to liver damage, hepatocytes proliferation, liver fibrosis and cirrhosis, disorganized vasculature, and a modulated immune microenvironment that mimics the usual events observed during human HCC (Hepatocellular carcinoma) development. DEN-induced liver tumors in the rat model shared remarkable molecular characteristics with human HCC, especially with HCC associated with high proliferation[1]. All Cygb(+/-) and Cygb(-/-) mice treated with 25-ppm DEN exhibited liver tumors, compared with 44.4% of their wild-type counterparts. More than 40% of Cygb(-/-) mice developed liver and lung tumors at the nontoxic dose of DEN (0.05 ppm), which did not induce tumors in wild-type mice[2]. gp130 deletion in hepatocytes reduces progression, but not HCC initiation in the DEN model[3]. AR (androgen receptor) protein expression analyses show that DEN causes an initial upregulation of AR in portal fibroblasts and leukocytes, but not hepatocytes, suggesting that hepatocyte-autonomous AR signaling is not essential for DEN-induced carcinogenesis[4]. |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
9.79mL 1.96mL 0.98mL |
48.95mL 9.79mL 4.90mL |
97.91mL 19.58mL 9.79mL |
参考文献 |
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