• Title/Summary/Keyword: Wang Xue-hao

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Involvement of FoxM1 in Non-Small Cell Lung Cancer Recurrence

  • Xu, Nuo;Wu, Sheng-Di;Wang, Hao;Wang, Qun;Bai, Chun-Xue
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4739-4743
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    • 2012
  • Background: Predictive biomarkers for lung cancer recurrence after curative tumor resection remain unclear. This study set out to assess the role of FoxM1 in the recurrence of non-small cell lung cancer. Methods: Immunohistochemistry for FoxM1 expression was performed on paraffin-embedded tumor tissues from 165 NSCLC patients. Association of FoxM1 expression with clinicopathological parameters and disease free survival were evaluated. Results: Our results indicated FoxM1 expression to be significantly associated with poorer tissue differentiation (P =0.03), higher TNM stage (P <0.01), lymph node metastasis (P <0.01), advanced tumor stage (P <0.01), and poorer disease free survival (P <0.01). Multivariable analysis showed that FoxM1 expression increased the hazard of recurrence (hazard ratio= 1.96, 95% CI, 1.04-3.17, P <0.05), indicating that FoxM1 is an independent and significant predictor of lung cancer recurrence. Conclusion: Therefore, FoxM1 is an independent risk factor for recurrence of NSCLC. Elevated FoxM1 expression could be used as an indicator of poor disease free survival.

Rapamycin Inhibits Expression of Elongation of Very-long-chain Fatty Acids 1 and Synthesis of Docosahexaenoic Acid in Bovine Mammary Epithelial Cells

  • Guo, Zhixin;Wang, Yanfeng;Feng, Xue;Bao, Chaogetu;He, Qiburi;Bao, Lili;Hao, Huifang;Wang, Zhigang
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.11
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    • pp.1646-1652
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    • 2016
  • Mammalian target of rapamycin complex 1 (mTORC1) is a central regulator of cell growth and metabolism and is sufficient to induce specific metabolic processes, including de novo lipid biosynthesis. Elongation of very-long-chain fatty acids 1 (ELOVL1) is a ubiquitously expressed gene and the product of which was thought to be associated with elongation of carbon (C) chain in fatty acids. In the present study, we examined the effects of rapamycin, a specific inhibitor of mTORC1, on ELOVL1 expression and docosahexaenoic acid (DHA, C22:6 n-3) synthesis in bovine mammary epithelial cells (BMECs). We found that rapamycin decreased the relative abundance of ELOVL1 mRNA, ELOVL1 expression and the level of DHA in a time-dependent manner. These data indicate that ELOVL1 expression and DHA synthesis are regulated by mTORC1 in BMECs.

Characteristics of Refractive Index Profiles at Different Temperatures in $LiNbO_3$ and $KTiOPO_4$ Waveguide Formed by 350 keV Light Ions

  • Wang, Ke-Ming;Feng Chen;Hui Hu;Xia, Hui-Hao;Wang, Xue-Lin;Shi, Bo-Rong;Lu, Qing-Ming
    • Journal of the Korean Vacuum Society
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    • v.12 no.S1
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    • pp.28-32
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    • 2003
  • Both $LiNbO_3$ and $KTiOPO_4$ samples were implanted with 350 keY $H^+$ and $He^+$ ions at different doses ranging from $1 ${\times}$\times10^{16}$ to of $5 ${\times}$\times10^{16}$ ions/$\textrm{cm}^2$. Single and multi-energy implantations were performed at room temperature. Mono-mode or a few modes in both $LiNbO_3$ and $KTiOPO_4$ waveguides were observed. The effect of temperature on the refractive index profiles of $LiNbO_3$ and $KTiOPO_4$ waveguids was studied. The temperature covered from room temperature, $200^{\circ}C$, 194.5 K (dry ice) and 77K (liquid nitrogen). Different mechanisms are needed to interpret the observed behavior. A n, increased mono-mode $LiNbO_3$ waveguide was formed by multi-energy keV $He^+$ ions.

Regulatory Network of MicroRNAs, Target Genes, Transcription Factors and Host Genes in Endometrial Cancer

  • Xue, Lu-Chen;Xu, Zhi-Wen;Wang, Kun-Hao;Wang, Ning;Zhang, Xiao-Xu;Wang, Shang
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.2
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    • pp.475-483
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    • 2015
  • Genes and microRNAs (miRNAs) have important roles in human oncology. However, most of the biological factors are reported in disperse form which makes it hard to discover the pathology. In this study, genes and miRNAs involved in human endometrial cancer(EC) were collected and formed into regulatory networks following their interactive relations, including miRNAs targeting genes, transcription factors (TFs) regulating miRNAs and miRNAs included in their host genes. Networks are constructed hierarchically at three levels: differentially expressed, related and global. Among the three, the differentially expressed network is the most important and fundamental network that contains the key genes and miRNAs in EC. The target genes, TFs and miRNAs are differentially expressed in EC so that any mutation in them may impact on EC development. Some key pathways in networks were highlighted to analyze how they interactively influence other factors and carcinogenesis. Upstream and downstream pathways of the differentially expressed genes and miRNAs were compared and analyzed. The purpose of this study was to partially reveal the deep regulatory mechanisms in EC using a new method that combines comprehensive genes and miRNAs together with their relationships. It may contribute to cancer prevention and gene therapy of EC.

Treatment of fever with traditional Chinese medicine according to Zheng on cancer patients (based on case reports)

  • Liu, Lan-Ying;Cao, Peng;Cai, Xue-Ting;Wang, Xiao-Ning;Huo, Jie-Ge;Zhou, Zhong-Ying
    • CELLMED
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    • v.2 no.2
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    • pp.16.1-16.5
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    • 2012
  • Fever in cancer patients is often due to the following causes: evil qi and toxity stagnancy, disorders of qi and blood, deficiencies of zang and fu organs, and the disorder of yin and yang. The treatments given to cancer patients with a fever are according to five: (a) Excessive inner heat and toxicants: remove heat and the toxicant, induce purgation. We use Cheng-Qi-Tang plus Qing-Wen-Bai-Du-Yin. (b) Tangle of damp and heat, and qi stagnancy: remove damp and heat, smooth the qi channel. We use Gan-Lu-Xiao-Du-Dan or San-Ren-Tang. (c) Obvious blood and heat stagnancy: remove heat and blood stasis. We use Xue-Fu- Zhu-Yu-Tang. (d) Deficiency of spleen qi, inner heat caused by a yin deficiency: nourish spleen qi and yin to remove the inner heat. We use Bu-Zhong-Yi-Qi-Tang or Xiao-Jian-Zhong-Tang. (e) Prominent yin deficiency and hectic fever: replenish yin and remove inner heat. We use Qing-Hao-Bie-Jia-Tang or Chai- Qian-Mei-Lian-San. The pathogenesis of fever in cancer patients is complicated. We can see both deficiency and excess in one differentiation. Therefore, we must make sure of it, then we can get the most effective treatment.

Preparation and Characterization of Sulfated TiO2/zeolite Composite Catalysts with Enhanced Photocatalytic Activity

  • Zhao, Yuan;Li, JingXiu;Wang, Ling;Hao, Yanan;Yang, Lin;He, Pingting;Xue, JianJun
    • Nano
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    • v.13 no.10
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    • pp.1850117.1-1850117.11
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    • 2018
  • Sulfated $TiO_2$ nanoparticles were successfully immobilized on zeolite through improving hydrolysis-deposition method. Microstructure, crystallization, surface state and surface area of composite catalysts were characterized by SEM, XRD, FTIR spectra, XPS and BET and the photocatalytic activity was evaluated by degradation of methyl orange under UV irradiation. We optimized these factors ($SO^{2-}_4$ ions, calcination temperature and loading amount of sulfated $TiO_2$) on photocatalytic activity and crystallization of composite photocatalysts. The results indicated that the $SO^{2-}_4$ ions are successfully immobilized on the surface of $TiO_2$, and sulfated $TiO_2$/zeolite show the highest photocatalytic activity for methyl orange at the $[SO^{2-}_4 ]/[Ti^{4+}]$ molar rate of 1:1, calcination temperature of $600^{\circ}C$ for 2 h, and sulfated $TiO_2$ loading amount of 40%, respectively.

Characterization and Electrical Conductivity of Carbon-Coated Metallic (Ni, Cu, Sn) Nanocapsules

  • Wang, Dong Xing;Shah, Asif;Zhou, Lei;Zhang, Xue Feng;Liu, Chun Jing;Huang, Hao;Dong, Xing Long
    • Applied Microscopy
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    • v.45 no.4
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    • pp.236-241
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    • 2015
  • Carbon-coated Ni, Cu and Sn nanocapsules were investigated by means of X-ray diffraction (XRD), transmission electron microscopy (TEM) and a four-point probe device. All of these nanocapsules were prepared by an arc-discharge method, in which the bulk metals were evaporated under methane ($CH_4$) atmosphere. Three pure metals (Ni, Cu, Sn) were typically diverse in formation of the carbon encapsulated nanoparticles and their different mechanisms were investigated. It was indicated that a thick carbon layers formed on the surface of Ni(C) nanocapsules, whereas a thin shell of carbon with 1~2 layers covered on Cu(C) nanocapsules, and the Sn(C) nanocapsules was, in fact, a longger multi-walled carbon nanotubes partially-filled with metal Sn. As one typical magnetic/dielectric nanocomposite particles, Ni(C) nanocapsules and its counterpart of oxide-coated Ni(O) nanocapsules were compared in the electrically conductive behaviors for further applications as the electromagnetic materials.

(K,Na)NbO3-based Lead-free Piezoelectric Materials: An Encounter with Scanning Probe Microscopy

  • Zhang, Mao-Hua;Thong, Hao Cheng;Lu, Yi Xue;Sun, Wei;Li, Jing-Feng;Wang, Ke
    • Journal of the Korean Ceramic Society
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    • v.54 no.4
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    • pp.261-271
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    • 2017
  • Environment-friendly $(K,Na)NbO_3-based$ (KNN) lead-free piezoelectric materials have been studied extensively in the past decade. Significant progress has been made in this field, manifesting competitive piezoelectric performance with that of lead-based, for specific application scenarios. Further understanding of the relationship between high piezoelectricity and microstructure or more precisely, ferroelectric domain structure, domain wall pinning effect, domain wall conduction and local polarization switching underpins the continuous advancement of piezoelectric properties, with the help of piezoresponse force microscopy (PFM). In this review, we will present the fundamentals of scanning probe microscopy (SPM) and its cardinal derivative in piezoelectric and ferroelectric world, PFM. Some representative operational modes and a variety of recent applications in KNN-based piezoelectric materials are presented. We expect that PFM and its combination with some newly developed technology will continue to provide great insight into piezoelectric materials and structures, and will play a valuable role in promoting the performance to a new level.

Anti-tumor Efficacy of a Hepatocellular Carcinoma Vaccine Based on Dendritic Cells Combined with Tumor-derived Autophagosomes in Murine Models

  • Su, Shu;Zhou, Hao;Xue, Meng;Liu, Jing-Yu;Ding, Lei;Cao, Meng;Zhou, Zhen-Xian;Hu, Hong-Min;Wang, Li-Xin
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.5
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    • pp.3109-3116
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    • 2013
  • The majority of hepatocellular carcinoma (HCC) patients have a poor prognosis with current therapies, and new approaches are urgently needed. We have developed a novel therapeutic cancer vaccine platform based on tumor cell derived autophagosomes (DRibbles) for cancer immunotherapy. We here evaluated the effectiveness of DRibbles-pulsed dendritic cell (DC) immunization to induce anti-tumor immunity in BALB/c mouse HCC and humanized HCC mouse models generated by transplantation of human HCC cells (HepG2) into BALB/c-nu mice. DRibbles were enriched from H22 or BNL cells, BALB/c-derived HCC cell lines, by inducing autophagy and blocking protein degradation. DRibbles-pulsed DC immunization induced a specific T cell response against HCC and resulted in significant inhibition of tumor growth compared to mice treated with DCs alone. Antitumor efficacy of the DCs-DRibbles vaccine was also demonstrated in a humanized HCC mouse model. The results indicated that HCC/DRibbles-pulsed DCs immunotherapy might be useful for suppressing the growth of residual tumors after primary therapy of human HCC.

Effects of Ohmic Area Etching on Buffer Breakdown Voltage of AlGaN/GaN HEMT

  • Wang, Chong;Wel, Xiao-Xiao;Zhao, Meng-Di;He, Yun-Long;Zheng, Xue-Feng;Mao, Wei;Ma, Xiao-Hua;Zhang, Jin-Cheng;Hao, Yue
    • Transactions on Electrical and Electronic Materials
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    • v.18 no.3
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    • pp.125-128
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    • 2017
  • This study is on how ohmic area etching affects the buffer breakdown voltage of AlGaN/GaN HEMT. The surface morphology of the ohmic metal can be improved by whole etching on the ohmic area. The buffer breakdown voltages of the samples with whole etching on the ohmic area were improved by the suppression of the metal spikes formed under the ohmic contact regions during high-temperature annealing. The samples with selective etching on the ohmic area were investigated for comparison. In addition, the buffer leakage currents were measured on the different radii of the wafer, and the uniformity of the buffer leakage currents on the wafer were investigated by PL mapping measurement.