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Nerve Growth Factor Delivery into the Brain – focus on therapeutic potential in Alzheimer’s disease and In Vivo Evaluation via PET

Descripción del proyecto

Llevar al cerebro fármacos contra la enfermedad de Alzheimer

La barrera hematoencefálica (BHE o BBB, por sus siglas en inglés) es una barrera semipermeable altamente selectiva que separa la sangre circulante del encéfalo e impide la entrada de sustancias nocivas al tiempo que permite el paso de nutrientes esenciales. Aunque protege el sistema nervioso central, también supone un obstáculo para la administración de fármacos al encéfalo para tratar trastornos cerebrales y neurológicos. El equipo del proyecto Beyond the BBB, financiado por las Acciones Marie Skłodowska-Curie, propone desarrollar una intervención terapéutica basada en el factor de crecimiento nervioso (FCN) para la enfermedad de Alzheimer, ya que favorece la supervivencia neuronal. Los investigadores evaluarán dos métodos diferentes: modularán la BHE mediante ultrasonidos dirigidos o administrarán FCN a través del transporte mediado por receptores de transferrina.

Objetivo

Alzheimers disease (AD) is a neurodegenerative disease affecting the aged population and is projected to increase 3-fold in the next 30 years. Treatment options in AD are limited due to complex pathological processes and the blood-brain barrier (BBB), which restrict entry molecules into the brain. A finding in AD is the loss of cholinergic neurons. Tropomyosin receptor kinase A (TrkA) and its substrate, the nerve growth factor (NGF), are involved in neuronal survival and have been evaluated in small clinical trials as a therapeutic intervention in AD. Advances in BBB shuttling methods, in which antibodies and enzymes can be transported over the BBB, make NGF a possible treatment option in AD.
Within this proposal, I will develop novel methods for the delivery of NGF into the brain. Two different approaches for BBB delivery of NGF will improve the success rate. In one approach, NGF will be delivered into the brain by transferrin receptor (TfR)-mediated transcytosis. NGF will be chemically conjugated to a TfR binding antibody using a linker that selectively and quantifiably can release NGF in its native form in the brain, ensuring retained biological activity. An alternative approach, BBB will be opened with focused ultrasounds allowing passage of NGF into the brain. Positron emission tomography occupancy studies with [18F]TRACK, a TrkA selective tracer, will be used to evaluate in vivo binding of NGF to TrkA. The above-described BBB transport methods for NGF will be evaluated in long-term therapeutic study using 5xFAD mice. Pharmacodynamic readouts will be changes in brain amyloid-beta levels, neuroinflammation parameters and improved memory and cognitive functions. In this project, I will expand my knowledge in BBB delivery of macromolecules, learn new radiolabeling techniques from a world-leading radiochemist, and novel develop the necessary skills to take my career to the next level.

Ámbito científico (EuroSciVoc)

CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. La clasificación de este proyecto ha sido validada por su equipo.

Coordinador

KOBENHAVNS UNIVERSITET
Aportación neta de la UEn
€ 214 934,40
Dirección
NORREGADE 10
1165 Kobenhavn
Dinamarca

Ver en el mapa

Región
Danmark Hovedstaden Byen København
Tipo de actividad
Higher or Secondary Education Establishments
Enlaces
Coste total
Sin datos