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- W4361951391 abstract "<div>Abstract<p><b>Purpose:</b> Before metastasis, primary tumor can create a premetastatic niche in distant organ to facilitate the dissemination of tumor cells. In the premetastatic phase, the permeability of pulmonary vasculatures is increased to accelerate the extravasation of circulating tumor cells. However, it is not clear whether local miRNAs contribute to the vascular hyperpermeability of the premetastatic niche.</p><p><b>Experimental Design:</b> The expression of total miRNAs was determined using microarray in series of premetastatic lungs from tumor-bearing mice. Significantly differentially expressed miRNAs were identified and validated with qRT-PCR. Vascular permeability assays, vascular mimic systems, and orthotopic tumor models were used to investigate roles of selected miRNAs and target genes in premetastatic hyperpermeability.</p><p><b>Results:</b> We identified a miRNA signature in premetastatic lungs. Among these miRNAs, miR-30a, b, c, d, and e were significantly attenuated. Subsequent investigations elucidated that lung fibroblast–derived miR-30s stabilized pulmonary vessels. Overexpression of miR-30s in lungs postponed metastasis and extended overall survival of B16 tumor–bearing mice. Following studies uncovered that Skp2 was directly targeted by miR-30s. Overexpression of Skp2 could disrupt pulmonary vessels, promote lung metastasis, and decrease overall survival of B16 tumor–bearing mice.</p><p><b>Conclusions:</b> These findings illuminate a novel mechanism for the modulation of premetastatic niches by miR-30s, which suggest that miR-30s represent not only promising targets for antimetastasis therapy but also indicators for metastasis. <i>Clin Cancer Res; 21(13); 3071–80. ©2015 AACR</i>.</p></div>" @default.
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- W4361951391 date "2023-03-31" @default.
- W4361951391 modified "2023-09-22" @default.
- W4361951391 title "Data from The miR-30 Family Inhibits Pulmonary Vascular Hyperpermeability in the Premetastatic Phase by Direct Targeting of Skp2" @default.
- W4361951391 doi "https://doi.org/10.1158/1078-0432.c.6523298.v1" @default.
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