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Fluorinated radiopharmaceuticals drug development for the exploration of neuroinflammation by PET molecular imaging

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Thèse de doctorat : Sciences de la Vie et de la Santé : Tours : 2016

Central nervous system (CNS) disorders as multiple sclerosis, stroke and neurodegenerative diseases (Alzheimer’s and Parkinson’s) lead to inflammatory response in the brain called neuroinflammation. This phenomenon usually should result in limiting the spread of the disease but also repair and regeneration of the affected tissues. Microglia, the main defense of the SNC, which is activated during a neurodegenerative event leading to the production of many factors including neuroprotectors but also pro-inflammatories. This duality of actions will thereby maintain endless vicious circle leading to neuronal death. It would be interesting to understand the neuroinflammation mechanism to better diagnose and treat CNS diseases. There are several molecular targets, among them are the CycloOXygenase 2 (COX-2), an enzyme which allows the formation of prostaglandins from arachidonic acid, which appears early and it is significantly overexpressed in case of neuroinflammation. This enzyme is therefore a good biological target for the development of imaging tools in order to diagnose pathologies in which central inflammatory processes are present in order to improve patient care. Postiron emission tomography (PET) is a very sensitive functional imaging technique that quantifies minute variations in metabolic or molecular activities. This technique requires the use of radiotracers labeled with a beta + emitter.

  • Dates
    Created on September 19, 2016