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首页> 外文期刊>The British journal of cancer >CD13/Aminopeptidase N overexpression by basic fibroblast growth factor mediates enhanced invasiveness of 1F6 human melanoma cells.
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CD13/Aminopeptidase N overexpression by basic fibroblast growth factor mediates enhanced invasiveness of 1F6 human melanoma cells.

机译:由基本CD13 /氨基肽酶N超表达纤维母细胞生长因子介导增强1 f6人类黑色素瘤细胞的侵袭性。

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CD13/Aminopeptidase N (CD13) is known to play an important role in tumour cell invasion. We examined whether basic fibroblast growth factor (bFGF) is involved in the regulation of CD13 expression in human melanoma cells. 1F6 human melanoma cells were stably transfected with constructs encoding either the 18 kDa (18 kD) or all (ALL) bFGF isoform proteins. We observed highly increased CD13 mRNA and protein expression in the 1F6 clones regardless of the overexpression of either the 18 kD or all isoform proteins. Neutral aminopeptidase activity was increased five-fold and could be inhibited by bestatin and the CD13-neutralising antibody WM15. The enhanced invasion through Matrigel, but not migration in a wound assay, was efficiently abrogated by both bestatin and WM15. Upregulation of CD13 expression was the result of increased epithelial and myeloid promoter activity up to 4.5-fold in 1F6-18 kD and 1F6-ALL clones. Interestingly, in a panel of human melanoma cell lines, a significant correlation (r(2)=0.883, P<0.05) between bFGF and CD13 mRNA and protein expression was detected. High bFGF and CD13 expression were clearly related with an aggressive phenotype. Taken together, our data indicate that high bFGF expression upregulates CD13 expression in human melanoma cells by activating both the myeloid and the epithelial CD13 promoter. In addition, we show that high bFGF and CD13 expression results in enhanced invasive capacity and metastatic behaviour of human melanoma cells.
机译:CD13 /氨基肽酶N (CD13)扮演重要的作用在肿瘤细胞入侵。检查是否基本成纤维细胞生长因子(bFGF)是参与CD13的规定人类黑色素瘤细胞的表达。黑色素瘤细胞的稳定性构造编码的18 kDa (18 kD)或所有(全部)bFGF同种型蛋白质。高度增加CD13 mRNA和蛋白表达在1 f6克隆不管过度的18 kD或同种型蛋白质。增加了5倍,可能被抑制bestatin WM15 CD13-neutralising抗体。通过人工基底膜增强的入侵,但不是迁移在伤口化验,是有效的废除bestatin和WM15。CD13表达的是增加的结果上皮细胞和骨髓推广活动4.5倍1 f6-18 kD和1 f6-all克隆。有趣的是,在人类黑色素瘤细胞行,一个显著相关(r = 0.883 (2),P < 0.05)和bFGF之间CD13信使rna和蛋白质表达检测。表情显然是相关的积极的表型。表明高bFGF的表达上调CD13表达在人类黑色素瘤细胞激活骨髓和上皮CD13启动子。bFGF和CD13表达增强侵袭性和转移性行为的能力人类黑色素瘤细胞。

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