Journal: eLife
Article Title: FMRP regulates postnatal neuronal migration via MAP1B
doi: 10.7554/elife.88782
Figure Lengend Snippet: Figure 6. The fragile X messenger ribonucleoprotein (FMRP)/microtubule-associated protein 1B (MAP1B) duo acts on the microtubular nuclear cage of rostral migratory stream (RMS) neurons. (A) Representative control neurons from mirNEG-GFP (magenta) plus DCX-RFP (cyan) co-electroporated ventricular/subventricular zone (V/SVZ) explants cultured in Matrigel displaying microtubular bundles enveloping the nucleus. (B) Representative Fmr1 knockdown (KD) neurons from mirFmr1-GFP (magenta) plus DCX-RFP (cyan) co-electroporated V/SVZ explants cultured in Matrigel. The majority of them display an abnormal cage with disruption (arrows) (46%), sinuous cages (33%), or even detached bundle (arrow) (28%). (C) Representative rescued neurons from mirNEG-GFP (magenta) plus DCX-RFP (cyan) plus mirMAP1B co-electroporated V/SVZ explants cultured in Matrigel displaying microtubular bundles enveloping the nucleus. Scale bars: 5 μm. (D) Quantification of the percentage of disorganized cages in the different conditions: mirNEG 19%, miRFMR1 60%, mirFMR1 + mirMAP1B 28% (Pearson’s χ2 test [2, N=107])=14.16, p-value <0.001 with the Benjamini-Hochberg method for
Article Snippet: Primary antibodies used are: MAP1B (Santa Cruz Biotechnology, sc- 365668, 1/100), Vinculin (Cell Signaling Technology, 13901 S, 1/1000).
Techniques: Control, Cell Culture, Knockdown, Disruption