It is shown that TDP-43 depletion in human neurons induces widespread circRNA changes, especially upregulation of a distinct class of cryptic circRNAs that arise specifically upon loss of TDP-43, and establishes these circRNAs as stable molecular signatures of TDP-43 dysfunction.
This work identifies a novel molecular mechanism for TDP-43 dysfunction, opening novel avenues for understanding disease pathogenesis and developing much needed pathology biomarkers.
Dario Dattilo, F. Pellegrini, Simone Barattucci et al.· bioRxiv· 0 citations
This stable, inducible TDP-43 overexpression model and its associated transcriptomic dataset provide a versatile platform for ALS and other TDP-43 proteinopathy research, enabling the investigation of molecular drivers of TDP-43 dysfunction, the identification of potential disease-relevant pharmacological targets, and...
Samantha A. DeSando, K. Mcclay, Amy N. Banks et al.· Discover Neuroscience· 0 citations
A physiologically relevant human model is established that separates early TDP-43 toxic gain-of-function from basal loss-of-function from basal loss-of-function while providing a robust platform for investigating TDP-43 biology and accelerating therapeutic discovery in ALS.
M. Cicardi, Sara Antonini, Ivette Martorell Serra et al.· bioRxiv· 0 citations
New models with inactivating mutations in the nuclear localization sequence of TDP-43 are generated and phosphorylation-mediated neurotoxicity of both cytoplasmic and nuclear localized TDP-43 is controlled by the phosphatase calcineurin.
Aaron Long, Heather N Currey, Matvey Goldberg et al.· Cell Death & Disease· 0 citations
Amyotrophic lateral sclerosis is a fatal neurodegenerative disease characterized by the cytoplasmic mislocalization, aberrant phosphorylation and pathological aggregation of TDP-43, a nuclear RNA-binding protein essential for RNA metabolism. Despite its central involvement in ALS pathogenesis, the molecular mechanisms...
Takayuki Shirakawa, Satsuki Mikuriya, Yuki Inoue et al.· Brain : a journal of neurolo...· 0 citations
A transcriptional framework linking early TDP-43 stress responses to pathological aggregation in AD is provided, and potential upstream therapeutic targets are revealed, including ERK1/2, PI3K, small GTPases, and mRNA splicing pathways.