Journal: FEBS Open Bio
Article Title: Hippocampal tau‐induced GRIN3A deficiency in Alzheimer's disease
doi: 10.1002/2211-5463.13904
Figure Lengend Snippet: Experimental validation of tau‐induced NR3A deficiency by using human iPSC‐derived brain organoids. (A) Representative images of paired helical filament (PHF)‐tau‐treated brain organoids. The organoids were labeled for MAP2 (green), PHF‐tau (magenta), and DAPI (blue). Scale bar = 10 μm. (B) Representative 3D view images of IMARIS 3D rendering to compare fractions of NR3A or PSD95 overlapped with each other. The organoids were labeled for MAP2 (green), NR3A (red), PSD95 (magenta), and DAPI (blue). White arrows show the positions colocalized between PSD95 and NR3A. The dotted circles show the magnified positions. n = 4 slides for each group. Scale bar = 10 or 3 μm. (C) Representative 3D view images of imaris 3D rendering to compare fractions of mGluR8 or PSD95 that overlapped with each other. The organoids were labeled for MAP2 (green), mGluR8 (red), PSD95 (magenta), and DAPI (blue). White arrows show the positions colocalized between PSD95 and mGluR8. The dotted circles show the magnified positions. n = 4 slides for each group. Scale bar = 10 or 3 μm. (D) Quantification data of (B) and (C). P ‐values by Mann–Whitney test (* P < 0.05). n = 4 slides for each group. (E) Western blot analysis to compare the total levels of NR3A between PHF‐tau‐treated organoids and vehicles. P ‐values by Welch's t ‐test ( # P = 0.1).
Article Snippet: Primary antibodies used in this study are anti‐NMDAR3A (rabbit polyclonal, Alomone, AGC‐030, Jerusalem, Israel), anti‐mGluR8 (rabbit polyclonal, Alomone, AGC‐028), anti‐PSD95 (mouse monoclonal, Invitrogen, Carlsbad, CA, USA, MA1‐045), anti‐GAPDH (rabbit polyclonal, Abcam, ab9485, Cambridge, UK), anti‐MAP2 (goat polyclonal, Phosphosolutions, 1099‐MAP2t, Aurora, CO, USA), anti‐Phospho‐Tau (Thr181) (mouse monoclonal, ThermoFisher, MN1050, Waltham, MA, USA) and DAPI (Sigma‐Aldrich, D9542, Saint Louis, MO, USA), Alexa Fluor™‐647/568/405 labeled secondary antibodies were purchased from Thermo Fisher Scientific (Waltham, MA, USA).
Techniques: Derivative Assay, Labeling, MANN-WHITNEY, Western Blot