Journal: Molecular Neurobiology
Article Title: Neuronal Stem Cells from Late-Onset Alzheimer Patients Show Altered Regulation of Sirtuin 1 Depending on Apolipoprotein E Indicating Disturbed Stem Cell Plasticity
doi: 10.1007/s12035-023-03633-z
Figure Lengend Snippet: Aging markers in NSCs are affected by APOE genotype. A Transcript and B protein expression analysis of the aging markers APOE, ATG7, FGF2, p21, PTEN, SIRT1, and STAT3. Results are shown as mean ± SEM (* p = 0.05). The bar charts compare two iPSCs carrying APOE3 (WISCi004-B and MLUi009-A) versus five iPSCs carrying APOE4 (WAi001-B, MLUi007-H/J and MLUi008-B/F) on 7 d, which were differentiated three times into NSCs ( N = 3 differentiations; APOE3: n = 6, APOE4: n = 15). C Telomere length measured by multiplex QRT-PCR in iPSCs on 0 d and in NSCs on 7 d, shown as the ratio NSCs/iPSCs grouped according to APOE status ( N = 3 differentiations; APOE3: n = 6, APOE4: n = 15). Results are shown as mean ± SEM (* p = 0.05). D Manipulation of APOE gene expression by APOE siRNAs and APOE3 plasmids in NSCs generated from reference cell line WISCi004-B on 7 d. No morphological changes are shown by phase contrast imaging up to 4 d after transfection. WB analysis showed the strongest APOE protein repression by APOE siRNAs and strongest APOE induction by APOE3 plasmids on 4 d. Representative images of stained WB membranes are shown (scale bar, 100 μm). Transcript analysis of aging markers in NSCs on 4 d after E APOE inhibition and F APOE induction. Results are shown as mean ± SEM (* p = 0.05). For APOE inhibition, MLUi009-A (healthy matched control, APOE3 carrier) was differentiated into NSCs and transfected with siRNAs on 7 d ( N = 3 differentiations; mock: n = 3, siRNA: n = 3). For APOE induction, the MLUi007-H from (AD, APOE4 carrier) was differentiated into NSCs and transfected with APOE3 plasmids at 7 d ( N = 3 differentiations; mock: n = 3, APOE3 plasmids: n = 3)
Article Snippet: Mouse IgG anti-human FGF2 , WB: 1:100 , Santa Cruz , sc-136255.
Techniques: Expressing, Multiplex Assay, Quantitative RT-PCR, Gene Expression, Generated, Imaging, Transfection, Staining, Inhibition, Control