Journal: Oncotarget
Article Title: Crosstalk between insulin-like growth factor-1 and angiotensin-II in dopaminergic neurons and glial cells: role in neuroinflammation and aging
doi: 10.18632/oncotarget.9174
Figure Lengend Snippet: Western blot A. , C. , ELISA B. and Real-time quantitative RT-PCR D. of effects of IGF-1 (100 nM) on the AII-induced changes in expression of markers of the M1 cytotoxic phenotype (iNOS and TNF-α); A. , B. , a marker of the M2 repair/regenerative phenotype (ARG-1) C. , and the expression of angiotensin receptors (AT1 and AT2); D. in N9 microglial cells 24 h after treatment. Protein expression was measured relative to the GAPDH band value. The results were normalized to the values for controls (100%). TNF-α levels were expressed in pg/ml protein. For RT-PCR the comparative cycle threshold values method (2 −ΔΔCt ) was used. IGF-1 gene expression was measured relative to that of the housekeeping transcripts (β-Actin). Data are means ± SEM. * p < 0.05 relative to controls; # p < 0.05 relative to AII-treated group. One-way ANOVA followed by Holm Sidak post-hoc test A. - C. and Student's t test D. AII, angiotensin II; ARG-1, arginase-1; iNOS, inducible nitric oxide synthase; TNF-α, tumor necrosis factor alpha.
Article Snippet: Some cultures were treated with the AT1 receptor antagonist ZD-7155 (1 μM; Tocris) or the AT2 receptor antagonist PD-123319 (1 μM; Sigma) or the NF-κB inhibitor PDTC (50μM; Sigma) for 30 minutes before treatment with AII to confirm the involvement of AT1 or AT2 receptors.
Techniques: Western Blot, Enzyme-linked Immunosorbent Assay, Quantitative RT-PCR, Expressing, Marker, Reverse Transcription Polymerase Chain Reaction, Gene Expression