Monoclonal anti-PHF-tau antibodies and antigen-binding fragments thereof are described. Also described are nucleic acids encoding the antibodies, compositions comprising the antibodies, methods of producing the antibodies and using the antibodies for treating or preventing conditions such as tauopathies.

A method of preventing, alleviating or treating traumatic brain injury in an individual comprises administering to the individual a therapeutically effective and physiologically acceptable amount of an agent capable of reducing the amount of one or more aggregated forms of one or more peptides in the brain. An agent capable of reducing the amount of one or more aggregated forms of one or more peptides in the brain is suitable for use in preventing, alleviating or treating traumatic brain injury. A method for predication of the risk of an individual for complications after a traumatic brain injury comprises detecting one or more aggregated forms of one or more peptides prone to aggregate as a result of a traumatic brain injury event, in the brain of the individual, wherein an increased level of such aggregates in the brain indicates an increased risk for complications.

A method for detecting circulating levels of beta amyloid peptides in an individual by administration of one or more inhibitors of an extracellular proteolytic pathway in blood and detection of the beta amyloid peptides in the blood or a fraction thereof. An example of an inhibitor is an anticoagulant. Levels of desired beta amyloid peptides such as A1-40 and A1-42 can be determined in the blood samples collected from the individuals.

The present invention is in the fields of biochemistry, molecular biology, and Alzheimer's disease diagnosis, prevention, and treatment Provided herein are humanized antibodies against human tau that are capable of discriminating between normal (healthy) and pathological (disease-associated) tau.

This invention is directed to compositions and methods for detecting proteinopathies.

The invention relates to antibodies, antibody fragments and binding agents that specifically recognize oligomeric tau but do not bind to monomeric tau, fibrillar tau or non-disease associated forms of tau.

A method of detecting the presence of alpha-synuclein aggregation in a biological sample is provided whereby a biological sample is mixed with a reaction sample comprising a population of beads, a fluorophore adapted to bind to protein aggregates and to increase fluorescence when bound to protein aggregates, and alpha-synuclein or a fragment or variant thereof to form a reaction mixture, wherein a significant increase in the fluorescence of the reaction mixture during incubation is indicative of the presence of aggregates of alpha-synuclein in the biological sample.

Cas-protein-ready tau biosensor cells, CRISPR/Cas synergistic activation mediator (SAM)-ready tau biosensor cells, and methods of making and using such cells to screen for genetic modifiers of tau seeding or aggregation are provided. Reagents and methods for sensitizing such cells to tau seeding activity or tau aggregation or for causing tau aggregation are also provided.

The invention relates to antibodies, antibody fragments and binding agents that specifically recognize oligomeric tau but do not bind to monomelic tau, fibrillar tau or non-disease associated forms of tau.

The invention relates to antibodies, antibody fragments and binding agents that specifically recognize oligomeric tau but do not bind to monomeric tau, fibrillar tau or non-disease associated forms of tau.