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Ed clones were compared to their GFP control counterparts. (Westerns controlled for loading by -actin IB). (D) Over-expression of galectin-1 promotes invasion. All cell counts were normalized to the parental cell line data. (Westerns controlled for loading by -actin IB).our identification of galectin-1 as a mediator of glioma invasion has been corroborated previously as detailed below. While previ
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On began the day after transfection. When enough GFP-expressing cells were identified, single cell suspensions were sorted under sterile conditions using the GFP filters (488/530 nm excitation/emission) on a FACS Vantage Sorter (Beckton Dickinson Immunocytometry Systems, San Jose, CA). Cells were collected in 96-well plates at a setting of 2 cells / well, after attempts to collect 1 cell per well
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Rbance values of the other wells. Average corrected absorbance was compared between transfectant and parental cells, using a t-test.ECM attachment assaysThe U87MG human glioma cell line was kept in tissue culture in DMEM (Cellgro Mediatech, Inc.), with 10 fetal bovine serum, and penicillin/streptomycin. For transfection, 2.5x106 cells were plated overnight on a 100 mm round dish. Cells were trans
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Few of our U87 galectin1 clones. Parental U87MG cells, along with galectin-1 and acGFP-only clones were injected into the right caudate/putamen complex of nude mice. Tumors overexpressing galectin-1 shortened survival of their hosts compared to their parental counterparts (Figure 5). A few animals (7/20) bearing tumors expressing acGFP alone eventually exhibited neurological symptoms. The examinat
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On problem with IRES vectors ?inability to transcribe the transcript following the IRES sequence if the first MCS is empty. The new pIRES2-acGFP1acGFP1 vector was used as a control for the pIRES2Gal1-acGFP1 construct. Both vectors were sequenced through their multiple cloning sites to ensure no PCRinduced mutations were present.Transfection and stable clone generationParental, control, and galecti
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By the ample amount of normal mouse brain tissue available for dissection. In spite of species differences, cross-hybridization of mouse genetic material to human probes did prove to be a common occurrence. These data made it possible to control, rather stringently, for the potential contamination of tumor edge samples with mouse brain. Of course, there could still be possible contamination ?react
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O the culture media markedly and specifically increased cell migration levels in human neoplastic astrocytes, and that these effects were related to striking modifications in the organization of the actin cytoskeleton and an increase in small GTPase RhoA expression [33]. Conversely, knocking down galectin-1 expression in U87MG GBM cells by stable transfection with antisense galectin-1 mRNA, the co
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Time intervals in a time-dependent experiment. Expression and phosphorylation of ERK (Thr-202/Tyr204) and MEK-1 (Ser-217/221) was determined by western blotting. B) The effect of Triphala on the kinase activity of ERK was determined using a kit from Cell Signaling Technology, measuring the phosphorylation of Elk-1 at Ser-383. C, D) Effect of ERK inhibitor on Triphala induced apoptosis and activati