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Modelling in vivo lineage reprogramming of human astrocytes into induced neurons...

Modelling in vivo lineage reprogramming of human astrocytes into induced neurons in the adult mouse brain Studies during last decade have shown that the genetic programs underlying cell identity are plastic even in fully differentiated cells. Direct lineage reprogramming takes advantage of this plasticity to induce cell fate conversio... ver más

01/04/2022

KINGS COLLEGE LOND...

225K€

Presupuesto del proyecto: 225K€

Líder del proyecto

KINGS COLLEGE LONDON No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2022-04-01

MSCA-IF-2018: Individual Fellowships

I+D

Cerrada hace 6 años

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1 Participantes

KINGS COLLEGE LONDON

224.93K€ | Lider

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Duración del proyecto: 35 meses Fecha Inicio: 2019-04-11
Fecha Fin: 2022-04-01

Líder del proyecto

KINGS COLLEGE LONDON No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 225K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Studies during last decade have shown that the genetic programs underlying cell identity are plastic even in fully differentiated cells. Direct lineage reprogramming takes advantage of this plasticity to induce cell fate conversions from one cell type into another. The host laboratory is among those who have pioneered successful lineage reprogramming of glial cells into induced functional neurons in vitro and in vivo. These studies have largely focused on murine glia. While there is sparse evidence that also human glia can be reprogrammed into induced neurons, it is unclear whether such lineage conversion can occur within the constraints of the in vivo tissue context by fully integrated mature human glia. In this project I propose an experimental model to study direct lineage reprogramming of human astrocytes into induced neurons at distinct developmental stages within the context of the adult mouse brain in vivo. This model is based on previous findings that show that human astroglial progenitors can integrate into the mouse brain following grafting, maintaining hallmarks that are specific to human astroglia which differ markedly in their complexity from their murine counterparts. Here I will combine this model system with the directed glial differentiation of induced human pluripotent stem cells (hiPSC) and state-of-the-art genome-editing via CRISPR-Cas9 technology. This will enable me to derive transplantable glial progenitors that can be induced to undergo lineage conversion in a humanized in vivo context at distinct maturation stages. With this approach I will obtain important insights into the fundamental question of how the state of maturation and functional integration determines the capacity of human astroglia to undergo lineage conversion into functional neurons in vivo. I expect that the data resulting from this approach will have important implications towards the translation of direct lineage reprogramming into new strategies for brain repair.

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