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author:("Li, suoquan")
1.  The Effects of β-Elemene on the Expression of mTOR, HIF-1A, Survivin in Lung Adenocarcinoma A549 Cell 
The purpose of this manuscript was to study the regulation effects of β-elemene combined with radiotherapy on three different gene expressions in lung adenocarcinoma A549 cell. mTOR gene, HIF-1α gene, Survivin gene were included in the gene group. Cell culture and RT-PCR were applied to finish this research. Hypoxia Control group, Hypoxia β-elemene group, Hypoxia β-elemene combined with irradiation group were set to compare the differences of three different gene expressions. The most active effects were found in the group of Hypoxia irradiation combined with β-elemene. In this group, the mTOR gene, HIF-1α gene, Survivin gene expressions were all down-regulated when compared with the single treatment groups, and there were significantly statistical differences.
PMCID: PMC3794386  PMID: 24146496
β-elemene; A549; mTOR; HIF-1α; Survivin; Rhizoma Curcumae
2.  Cryptosporidium parvum IId family: clonal population and dispersal from Western Asia to other geographical regions 
Scientific Reports  2014;4:4208.
In this study, 111 Cryptosporidium parvum IId isolates from several species of animals in China, Sweden, and Egypt were subtyped by multilocus sequence typing (MLST). One to eleven subtypes were detected at each of the 12 microsatellite, minisatellite, and single nucleotide polymorphism (SNP) loci, forming 25 MLST subtypes. Host-adaptation and significant geographical segregation were both observed in the MLST subtypes. A clonal population structure was seen in C. parvum IId isolates from China and Sweden. Three ancestral lineages and the same RPGR sequence were shared by these isolates examined. Therefore, the present genetic observations including the higher nucleotide diversity of C. parvum IId GP60 sequences in Western Asia, as well as the unique distribution of IId subtypes (almost exclusively found in Asia, Europe, and Egypt) and in combination with the domestication history of cattle, sheep, and goats, indicated that C. parvum IId subtypes were probably dispersed from Western Asia to other geographical regions. More population genetic structure studies involving various C. parvum subtype families using high-resolution tools are needed to better elucidate the origin and dissemination of C. parvum in the world.
PMCID: PMC3936226  PMID: 24572610
3.  Efficient multicistronic co-expression of hNIS and hTPO in prostate cancer cells for nonthyroidal tumor radioiodine therapy 
Radioiodine therapy has proven to be a safe and effective approach in the treatment of differentiated thyroid cancer. Similar treatment strategies have been exploited in nonthyroidal malignancies by transfecting hNIS gene into tumor cells or xenografts. However, rapid radioiodine efflux is often observed after radioiodine uptake, limiting the overall antitumor effects. In this study, we aimed at constructing multicistronic co-expression of hNIS and hTPO genes in tumor cells to enhance the radioiodine uptake and prolong the radioiodine retention. Driven by the cytomegalovirus promoter, hNIS and hTPO were simultaneously inserted into the expression cassette of adenoviral vector. An Ad5 viral vector (Ad-CMV-hTPO-T2A-hNIS) was assembled as a gene therapy vehicle by Gateway technology and 2A method. The co-expression of hNIS and hTPO genes was confirmed by a double-label immunofluorescence assay. The radioiodine (125I) uptake and efflux effects induced by co-expression of hNIS and hTPO genes were determined in transfected and non-transfected PC-3 cells. Significantly higher uptake (6.58 ± 0.56 fold, at 1 h post-incubation) and prolonged retention (5.47 ± 0.36 fold, at 1 h of cell efflux) of radioiodine (125I) were observed in hNIS and hTPO co-expressed PC-3 cells as compared to non-transfected PC-3 cells. We concluded that the new virus vector displayed favorable radioiodine uptake and retention properties in hNIS-hTPO transfected PC-3 cells. Our study will provide valuable information on improving the efficacy of hNIS-hTPO co-mediated radioiodine gene therapy.
PMCID: PMC3484425  PMID: 23145364
Gene therapy; prostate cance; hNIS; hTPO; gateway cloning system

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