Liu P, Ashe KH. The Molecular Implications of a Caspase-2-Mediated Site-Specific Tau Cleavage in Tauopathies. Neural Regeneration Research. 2021;16(9):1774-1775. PMID: 33510072. DOI: https://doi.org/10.4103/1673-5374.306073
Summary
This perspective article summarized the significance of caspase-2-mediated tau cleavage in tauopathies. The authors discussed how site-specific cleavage at Asp314 produces a soluble tau species linked to synaptic dysfunction and cognitive impairment. The article placed Δtau314 in the broader context of tau biology, emphasizing that soluble tau fragments may be more directly linked to early functional deficits than insoluble aggregates. It also highlighted caspase-2 as a potential therapeutic target.
Key Findings
- Caspase-2-mediated tau cleavage was framed as mechanistically important.
- Δtau314 was emphasized as a soluble synaptotoxic tau species.
- The article linked tau cleavage to cognitive dysfunction.
- Caspase-2 inhibition was highlighted as a therapeutic concept.
Impact on the Caspase-2/Tau Program
This paper provided a concise conceptual framework for the program. It helped articulate why blocking a specific tau cleavage event could be therapeutically meaningful.