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Achilleas Gravanis

Achilleas Gravanis
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Achilleas Gravanis

Collaborating Faculty Member (Professor, University of Crete)

We are interested in developing agonists of neurotrophin receptors, with neuroprotective and neurogenic properties and potential applications in therapeutics of neurodegenerative diseases.We are constructing 3D scaffolds hosting neural stem cells to develop Neuroimplants for spinal cord injury and Neurobiosensors for screening for new neurogenic compounds.

Developing agonists of neurotrophin receptors, with neuroprotective and neurogenic properties.

Neurotrophins (NT), like Nerve Growth Factor (NGF), are important factors for the development and maintenance of nervous tissue. Their decline has been associated to various neurodegenerative disorders and to brain aging. Despite the demonstrated beneficial effects, the therapeutic usefulness of neurotrophins is compromised by their polypeptide nature and their restricted penetrance to the blood-brain barrier. We are developing synthetic small molecules, with neuroprotective and neurogenic properties, shown to interact and signal through neurotrophin receptors (microneurotrophins), The efficacy of synthetic microneurotrophins as neuroprotective and neurogenic agents in vivo is tested in animal models of neurodegenerative disorders and brain trauma.

3D Scaffolds hosting neural stem cells: developing Neuroimplants and Neurobiosensors.

Neural stem cells (NSC) emerge as new therapeutic agents with potential applications in neuronal injury and repair. In responding tothis challenge we develop3D micro/nano scaffolds for hosting NSC 3D cultures, as an advantageous platform to study the biology and neurochemistry of NSC proliferation, differentiation, neuritogenesis and synaptogenesis in vitro. The functionality of the neuronal networks developed onto 3D scaffolds istested, using a combination of state-of-the-art technologies, including two-photo imaging, advanced electrophysiology, functional genomics and proteomics. The 3D NSC scaffolds aretested in two applications: i) 3D neuroimplants, for effectively bridging interrupted spinal cord, using animal models, ii) 3D neurobiosensors for screening for new neurogenic compounds.