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Y intensity of p-ERK immunostaining. Figure 8C shows nuclear p-ERK expression levels (0, 1+, 2+, 3+)) by CNKSR1 cellular distribution (cytoplasmic CNKSR1 expression only vs cytoplasmic and nuclear) in pancreas cancer specimens of the SEER Pancreatic Cancer TMA (Mann Whitney U test; p = 0.017). To test whether expression levels of the two proteins are correlated as well, including if a possible neg
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Ns including phosphorylation of select sites of CNKSR1, appears in line with our findings of a correlation between the cellular distribution of CNKSR1 and nuclear p-ERK expression levels [30].Fig. 8 Cellular distribution of CNKSR1 is associated with p-ERK expression levels in pancreatic cancer specimens. a p-ERK cellular distribution and nuclear expression levels (scored as 1+, 2+, and 3+) in 86 c
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That is relatively over-expressed at the tumor periphery. These graphical representations of gene expression data compare the relative expression of galectin-1 from the core and edge of tumors to pooled data from normal mouse brain samples. (Graphics from GeneSpringW).created. To ensure that galectin-1 over-expression would not enhance proliferation of the U87MG line (and hence alter the interpret
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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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Esthesia. At the onset of neurological symptoms, animals were sacrificed in accordance with the Mayo Clinic IACUC. Survival curves were generated from those animals (38 of 40) developing tumors (7 of 20 acGFP-only).xenograft lines is necessary to characterize completely the in vivo phenotypic alterations that accompany overexpression of galectin-1.Our model system has identified galectin-1 as a ma
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Galectin-1 transfectants. A population of GFP-sorted cells (the "Gal-1" bars in Figure 4A) was compared to its parental counterpart. The number of metabolically-active cells attached to fibronectin was no different between the two lines at eight hours. Changing the media at four hours reduced the number of cells left for labeling, but the effect was equal in both groups, suggesting a similar rate
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Action of the tumor [22,36]. Indeed, abrogating galectin-1 expression renders tumor cells more susceptible to temozolamide treatment [22,41]. Finally, galectin-1 induces apoptosis of activated T-cells [42-46], prevents host animals from mounting tumor vaccine-induced immunity [47], and may cooperate with TGF-beta in GBM-induced immunosuppression [48,49]. In sum, galectin-1 expression may inversely
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S independently with similar results. Statistical significance was determined by one-way ANOVA followed by Bonferroni's post hoc analysis for multiple comparisons. *Significantly different compared with PBStreated control (P