Quantification of plasma tau species containing the proline-rich region as a biomarker in Alzheimer's disease.

ABSTRACT: Tau-based blood biomarkers are increasingly recognised as important for the diagnosis of Alzheimer's disease (AD). More than 60 proteolytic cleavage sites of tau have been identified, and current assays may miss critical information from some of the smaller protein fragments. By capturing a broader range of tau species, a polyclonal approach may offer greater interrogation of this complex "tauosome" and deliver valuable insights into the onset or progression of AD. A sheep was hyper-immunised with 2N4R tau113-251 peptide, encompassing the proline-rich region. An affinity-purified proline region polyclonal antibody (P.pAb) was derived from sheep serum, after four rounds of immunisation. Following characterisation of P.pAb, utility as a plasma biomarker/diagnostic agent for AD was assessed u

SUBMITTER: Arastoo M 

PROVIDER: S-EPMC12647631 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature