Research Article

Posttranscriptional Suppression of Lipopolysaccharide-Stimulated Inflammatory Responses by Macrophages in Middle-Aged Mice: A Possible Role for Eukaryotic Initiation Factor 2α

Figure 7

Effects of salubrinal on the LPS-stimulated inflammatory responses of RAW264.7 cells. RAW264.7 cells were stimulated with 100 ng/mL LPS in the presence of 10 μM salubrinal or DMSO alone for 6 h. (a) Concentrations of TNF-α in the culture supernatants, measured by ELISA. Values: means ± SEM ( ). . (b) Total RNA from macrophages was converted to cDNA to determine the levels of TNF-α mRNA by PCR. Values: means ± SEM ( ). (c) Phosphorylation of the p54 subunit of JNK and (d) abundances of the p54 subunit of JNK were analyzed by Western blotting. Values are shown as means from duplicate samples.
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