國家衛生研究院 NHRI:Item 3990099045/9870
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    题名: Prorenin receptor acts as a potential molecular target for pancreatic ductal adenocarcinoma diagnosis
    作者: Arundhathi, A;Chuang, WH;Chen, JK;Wang, SE;Shyr, YM;Chen, JY;Liao, WN;Chen, HW;Teng, YM;Pai, CC;Wang, CH
    贡献者: Institute of Biomedical Engineering and Nanomedicine
    摘要: Recent studies have implicated the prorenin receptor (PRR) is associated with pancreatic tumorigenesis. We therefore investigated the role of PRR in pancreatic tumorigenesis and assessed whether PRR can serve as a target for imaging diagnosis at early stages of PDAC. Here we show that aberrant expression of PRR in premalignant PanIN lesions, and human PDAC samples, and PDAC cell lines, particularly in Panc-1 cells. Interestingly, PRR expression was positively associated with PDAC progression. Moreover, overexpression of human PRR resulted in increased cell proliferation and decreased apoptosis, while knockdown of human PRR caused decreased cell proliferation and enhanced apoptosis in pancreatic cancer cells. We also observed that overexpression of human PRR enhanced MAPK and PI3K/Akt signaling pathways in PDAC cells, while knockdown of human PRR suppressed both of pathways. The confocal imaging analysis showed that human PRR was highly expressed in Panc-1, ASPC, and Miapaca cells, whereas BXPC-3, and HPAC cells had a significantly lower fluorescent signals. Consistently, the single-photon emission computed tomography (SPET/CT) showed that the uptake of anti-PRR labelled with 125I was higher in Panc-1 and ASPC tumors-bearing mice after 96 hours injection. Importantly, tumors in pancreas of Pdx1-cre; LSL-KrasG12D mice had a significant increased PRR expression and accumulation of radioactivity at 96 h after injection. These data suggest that 125I-anti-PRR can detect the orthotopic tumors in Pdx1-cre; LSL-KrasG12D mice. Therefore, anti-PRR labelled with 125I is a promising radiotracer for imaging diagnosis at early stages of pancreatic cancer.
    日期: 2016-08
    關聯: Oncotarget. 2016 Jul 13;7(34):55437-55448.
    Link to: http://dx.doi.org/10.18632/oncotarget.10583
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000385435000104
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84983472702
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