Flt Receptors

Cell Biol

October 16, 2024

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Although TDP-43 interacted with Cdc37 in normal brain tissue, it was replaced in AD brain with phospho-tau. A corresponding conversion of full-length TDP-43 to cleaved TDP-43 was also observed in AD brain, suggesting altered clearance kinetics of TDP-43 in AD brain (Fig. 5, and 0.05; **, 0.01. Caspase-cleaved TDP-43 Clearance Is usually Mediated by Autophagy The impaired clearance of TDP-43 by tau accumulation suggested that tau could be usurping the clearance machinery necessary for TDP-43 clearance stimulated by Cdc37 depletion. Because a major clearance pathway for tau is usually autophagic processing (29), we tested whether manipulating autophagy could similarly impair TDP-43 clearance following Cdc37 depletion. To disrupt autophagy, we used siRNA targeting beclin1. Beclin is usually a protein known to promote autophagy (30). Cells expressing TDP-43 were transfected with siRNA targeting beclin1 and either control or Cdc37 siRNA. 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