黑色素瘤
癌症研究
转移
血红素加氧酶
血管生成
转基因小鼠
肺
下调和上调
内皮抑素
医学
拉顿
肺癌
渗透(HVAC)
病理
血红素
转基因
生物
癌症
免疫学
内科学
酶
基因
物理
热力学
生物化学
作者
Qingjun Liu,Bo Wang,Yujing Yin,Gan Chen,Wei Wang,Xu Gao,Peng Wang,Hong Zhou
标识
DOI:10.1177/1535370213490628
摘要
Heme oxygenase-1 (HO-1) is often upregulated in tumour tissues and endows tumour cells with cytoprotection and antiapoptosis. It is worthy of note that some people show higher activity of HO-1 and some anti-cancer therapies could induce HO-1 expression in normal tissues, but the effect of HO-1 of normal tissues on tumours among these people remains unknown. To assess the effect of HO-1 of normal tissues on tumour progressiveness, we investigated the growth, metastasis and angiogenic potential of murine melanoma B16F10 cells in transgenic mice overexpressing HO-1 and its negative dominant mutant HO-1G143H, respectively. The results demonstrated that neither overexpression of HO-1 nor overexpression of HO-1G143H in normal tissues could significantly change the survival rate of tumour-bearing mice, but HO-1 overexpression could inhibit lung metastases and HO-1G143H could significantly promote lung metastases. Meanwhile, the leukocytes infiltration was reduced and angiogenesis was promoted in tumours in mice overexpressing HO-1, but the opposite was true in mice overexpressing HO-1G143H. Our findings suggested that overexpression of HO-1 might be conducive to patients bearing melanoma metastasis.
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