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Polo-like kinase 1(Plk1) has been reported to be a multifunctional kinase that plays pivotal regulatory roles in microtubule assembly during mammalian early embryonic mitosis. In the present study, we examined the expression of Plk1 at protein and mRNA level in mouse fertilized eggs by Western blot and RT-PCR. We also examined the kinase activity of Plk1.(More)
In order to determine the function and possible relationship between Cdc2 and P(70)S6K, Western blot analysis and immunohistochemistry analysis were used to study the expression and kinase activity of Cdc2 and P(70)S6K in male mouse germ cells. With the maturation of germ cells in the testis, the expression of Cdc2 and P(70)S6K was relatively constant.(More)
In order to study the relationship between mTOR (mammalian target of rapamycin) and tumorigenesis, we investigated the expression and activity of mTOR, and its substrates, alpha1, alpha2, beta1 and beta2 isoforms of p70S6 kinase (p70S6K) and eukaryotic initiation factor 4E binding protein-1 (4EBP-1) in oral squamous carcinoma and Hela cells using RT-PCR,(More)
In the present study, we evaluated expressions of estrogen receptor (ER), progestin receptor (PR), human epidermal growth factor receptor-2 (HER-2), cyclooxygenase-2 (COX-2), and vascular endothelial growth factor (VEGF) in primary and relapsed/metastatic breast cancers to elucidate the clinical significance of these markers. The markers were evaluated by(More)
Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders in women. However, the epigenetic mechanism involved in PCOS progression remains largely unknown. Here, combining the DNA methylation profiling together with transcriptome analysis, we showed that (i) there were 7929 differentially methylated CpG sites (β > 0.1, P < 0.05) and 650(More)
Effects of PKC zeta on the activation of embryonic transcription in 1-cell stage fertilized mouse eggs were explored. The effects of PKC antagonist calphostin C and PKC zeta specific inhibitor on the activation of embryonic early transcription were observed by Western blotting and cell immunofluorescence. PKC activity increased gradually from G1 phase to(More)
BACKGROUND & OBJECTIVE There may be a close relationship among the vascular endothelial growth factor-C (VEGF-C) expression, peritumour lymphatic vessels, and lymph node metastasis. The purpose of this study was to compare the relationship among VEGF-C mRNA expression, density of lymphatic and blood vessels, and lymphatic metastasis in oral squamous(More)
To explore differences in coordination between alkali- and alkaline-earth-metal ions and cucurbit[n]urils, a water-soluble α,α',δ,δ'-tetramethylcucurbit[6]uril (TMeQ[6]) was used to synthesize a series of complexes and their supramolecular assemblies, based on the coordination of TMeQ[6] with alkali- and alkaline-earth-metal ions. The complexes and(More)
OBJECTIVE To examine the effect of SH2A gene in cell signal transduction and its subcellular localization. METHODS RT-PCR method was used to amplify the coding sequence of SH2A gene. Eukaryotic recombined expression vector pcDNA 3.1-SH2A was constructed, and then Bel7402 cell and COS7 cell transfected by liposome. Multiple kinase assay was performed to(More)
OBJECTIVE To assess suppression effects of vector-based small interfering RNA (siRNA) on vascular endothelial growth factor (VEGF) expression of human tongue squamous carcinoma cell line (Tca8113) in vitro. METHODS Two siRNA targeting VEGF constructed in eukaryotic expression vector (Pu-VEGF-siRNA1, Pu-VEGF-siRNA2), eukaryotic expression vector as the(More)