Nidogen 1 regulates proliferation and migration/invasion in murine claudin-low mammary tumor cells.

Nidogen 1 regulates proliferation and migration/invasion in murine claudin-low mammary tumor cells.
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Nidogen 1调节鼠Claudin-Low乳腺肿瘤细胞中的增殖和迁移/侵袭。

DOI:
10.3892/ol.2020.12313
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发表时间:
2021-01
期刊:
影响因子:
2.9
通讯作者:
Moorehead RA
Moorehead RA
中科院分区:
医学4区
文献类型:
--
作者:
Jagroop R;Martin CJ;Moorehead RA

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巢蛋白1(NID 1)是一种在基底膜中发现的糖蛋白,参与交联胶原IV和层粘连蛋白。NID在乳腺癌中的作用仅在少数研究中进行了评估,这些研究的结果不一致。我们以前的工作表明,高致瘤性小鼠乳腺肿瘤细胞表达高水平的Nid 1,而弱致瘤性乳腺肿瘤细胞表达低水平的Nid 1。为了研究Nid 1,建立了两个稳定的敲除株系,并在mRNA和蛋白质水平上证实了Nid 1敲除。Nid 1敲低显著降低细胞增殖和迁移/侵袭,并且这些增殖和迁移/侵袭的降低可以通过含有Nid 1蛋白的条件培养基来挽救。在Nid 1敲低细胞中观察到的迁移/侵袭减少与上皮基因Cdh 1或间充质基因Snai 1、Snai 2、Twist 1、Twist 2、Zeb 1和Zeb 2的显著改变无关。因此,Nid 1表达的抑制降低了密蛋白低的小鼠乳腺肿瘤细胞的增殖和迁移/侵袭。
Nidogen 1 (NID1) is a glycoprotein found in basement membranes involved in cross-linking collagen IV and laminin. The role of NID in breast cancer has only been evaluated in a small number of studies and the findings of these studies have been inconsistent. Our previous work revealed that highly tumorigenic murine mammary tumor cells express high levels of Nid1 while weakly tumorigenic mammary tumor cells express low levels of Nid1. To investigate Nid1, two stable knockdown lines were created, and Nid1 knockdown was confirmed at both the mRNA and protein level. Nid1 knockdown significantly reduced cell proliferation and migration/invasion and these reductions in proliferation and migration/invasion could be rescued by conditioned media containing NID1 protein. The reduced migration/invasion observed in the Nid1 knockdown cells was not associated with significant alterations in the epithelial gene Cdh1 or the mesenchymal genes Snai1, Snai2, Twist1, Twist2, Zeb1 and Zeb2. Therefore, suppression of Nid1 expression reduces proliferation and migration/invasion in claudin-low murine mammary tumor cells.
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