首页 返回上一页

针对病种:胃癌

发表时间:2011年12月

发表国家:荷兰

登载刊物:蛋白质组学杂志

研究单位:中国广州暨南大学生命和健康工程荷兰研究所和国家级工程技术研究中心遗传医学

研究人员:严广荣等

主要结论:除了 ERK1/2、PI3K、p90RSK、坏和拓扑异构酶是已知的染料木黄酮调节效应器,许多新型磷酸被确认第一次参与到金雀异黄素调控的信号转导网络中。他们主要包括 9 个受体、 5 个信号适配器、 13 种蛋白激酶、 2种蛋白磷酸酶调节亚基和 14 个转录调节器。几种磷酸已被证明参与到 G2/M 期阻滞或细胞凋亡例如GPCRs、 DCC、 NCK1、 TNK2、 BTK、 TP53BP1、 BCLAF、 MAX和 MAG.

Journal of Proteomics, 2011, 75(2):695-707.

Identification of novel signaling components in genistein-regulated signaling pathways by quantitative phosphoproteomics

Guang-Rong Yan, et al

Netherlands Institute of Life and Health Engineering, and National Engineering and Research Center for Genetic Medicine, Jinan University, Guangzhou 510632, China

Isolated from soybeans, genistein is an isoflavonoid that exhibits anti-carcinogenic effects. Genistein could induce G2/M arrest and apoptosis of various cancer cells in vivo and in vitro. Although ERK1/2, AKT, p90RSK and NFκB were previously found to be regulated by genistein, most of signaling components in genistein-inhibited signaling pathways were still unknown. Here, we used SILAC quantitative phosphoproteomics to globally identify the phosphoproteins and their regulatory sites in signaling pathways mediated by genistein. We detected 1177 phosphorylation sites on 635 unique proteins; among them, 320 phosphorylation sites on 222 unique phosphopeptides representing 215 non-redundant proteins were modulated at least 1.5-folds by genistein. Apart from ERK1/2, PI3K, p90RSK, Bad and topoisomerase that are known genistein-regulated effectors, many novel phosphoproteins were identified for the first time to be involved in genistein-regulated signal transduction networks. They mainly include 9 receptors, 5 signal adaptors, 13 protein kinases, 2 protein phosphatase regulatory subunits, and 14 transcription regulators. Several of these phosphoproteins have been proven to be involved in G2/M arrest or apoptosis such as GPCRs, DCC, NCK1, TNK2, BTK, TP53BP1, BCLAF, MAX and MAG. This dataset provides valuable insights into the cancer-related phosphorylation signaling pathways regulated by genistein.


荷兰《蛋白质组学杂志》,
201112

定量蛋白质组研究鉴定染料木黄酮调节信号通路中的新型信号组分

严广荣等

中国广州暨南大学生命和健康工程荷兰研究所和国家级工程技术研究中心遗传医学

从大豆中分离的金雀异黄素,是一种具有防癌作用的异黄酮。金雀异黄素能够在体内和体外多种肿瘤细胞中诱导 G2/M 期阻滞和细胞凋亡的。虽然以前发现国 ERK1/2AKTp90RSK 可以被染料木黄酮调节,但是金雀异黄素抑制信号通路中的信号成分大多仍然未知。这里,我们使用 SILAC 定量蛋白质组研究来全面识别蛋白质磷酸化和染料木素介导信号通路的调控位点。我们在 635 独特蛋白上检测到 1177个磷酸化位点;其中,在 222 个独特磷酸肽上的320个磷酸化位点表明215 个非冗余蛋白质的被调制了至少 1.5 倍的染料木黄酮。除了 ERK1/2PI3Kp90RSK、坏和拓扑异构酶是已知的染料木黄酮调节效应器,许多新型磷酸被确认第一次参与到金雀异黄素调控的信号转导网络中。他们主要包括 9 个受体、 5 个信号适配器、 13 种蛋白激酶、 2种蛋白磷酸酶调节亚基和 14 个转录调节器。几种磷酸已被证明参与到 G2/M 期阻滞或细胞凋亡例如GPCRs DCC NCK1 TNK2 BTK TP53BP1 BCLAF MAX MAG。这一数据源为金雀异黄素调控与癌症相关的磷酸化信号通路提供了宝贵的见解。
 石家庄霹克医药科技有限公司 400-831-3116