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Tumor metastasis is the main cause of cancer-related deaths of patients. Breast cancer is highly malignant with considerable metastatic potential, which urges the necessity for developing novel potential drug candidate to prevent tumor metastasis. Here, we report our finding with Cucurbitacin E (CuE, α-elaterin), a tetracyclic triterpenes compound isolated(More)
The pentacyclic acridinium methosulfate salt RHPS4 induces the 3'single-stranded guanine-rich telomeric overhang to fold into a G-quadruplex structure. Stabilisation of the latter is incompatible with an attachment of telomerase to the telomere and thus G-quadruplex ligands can effectively inhibit both the catalytic and capping functions of telomerase. In(More)
Activation of p53 effectively inhibits tumor angiogenesis that is necessary for tumor growth and metastasis. Reactivation of the p53 by small molecules has emerged as a promising new strategy for cancer therapy. Several classes of small-molecules that activate the p53 pathway have been discovered using various approaches. Here, we identified harmine(More)
Tumor growth depends on angiogenesis and inducing angiogenesis is one of the most important hallmarks in the cancer development. Treatment with small molecules that inhibit angiogenesis has been an effective strategy for anti-cancer therapy. Some anti-angiogenic factors are derived from traditional Chinese herbs. Usnic acid (UA), an active compound mainly(More)
Tumor angiogenesis is one of the hallmarks of the development in malignant neoplasias and metastasis. Many angiogenesis inhibitors are small molecules from natural products. Indirubin, the active component of a traditional Chinese herbal medicine, Banlangen, has been shown to exhibit antitumor and anti-inflammation effects. But its roles in tumor(More)
Accumulating evidence demonstrates important roles for histone deacetylase in tumorigenesis (HDACs), highlighting them as attractive targets for antitumor drug development. Histone deactylase inhibitors (HDACIs), which have shown favorable anti-tumor activity with low toxicity in clinical investigations, are a promising class of anticancer therapeutics.(More)
Telomeres and telomerase are targets for anticancer drug development and specific inhibitors are currently under clinical investigation. However, it has been reported that standard cytotoxic agents can affect telomere length and telomerase activity suggesting that they also have of a role in drug resistance. in this study, telomere lengths and telomerase(More)
The REGγ-proteasome serves as a short-cut for the destruction of certain intact mammalian proteins in the absence of ubiquitin- and ATP. The biological roles of the proteasome activator REGγ are not completely understood. Here we demonstrate that REGγ controls degradation of protein kinase A catalytic subunit-α (PKAca) both in primary human umbilical vein(More)
BACKGROUND AND PURPOSE Compounds targeting epigenetic events of tumours are likely to be an important addition to anticancer therapy. Histone deacetylase inhibitors (HDACI) have emerged as a promising novel class for therapeutic interventions associated with cancer, and many of them are currently in clinical investigation. Here, we assessed a novel(More)
BACKGROUND Farrerol is one of traditional Chinese medicines, isolated from Rhododendron dauricum L. It has been reported that Farrerol exerts multiple biological activities. Angiogenesis is an important drug target for cancer and inflammation therapy, the effect of Farrerol on angiogenesis is unknown. HYPOTHESIS/PURPOSE We aimed to investigate whether(More)