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OCTOBER

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Control of cell identity in pluripotent and germline cells by OCT4 orchestration...

Control of cell identity in pluripotent and germline cells by OCT4 orchestration of chromatin binding and enhancer regulation The development of an organism requires the fine-tuned balance between self-renewal and differentiation of pluripotent cells. Pluripotency is controlled by a group of transcription factors (TFs) that constitute the Pluripotency Ge... ver más

27/10/2021

UEDIN

213K€

Presupuesto del proyecto: 213K€

Líder del proyecto

THE UNIVERSITY OF EDINBURGH 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 2021-10-27

MSCA-IF-2018: Individual Fellowships

I+D

Cerrada hace 6 años

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No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

UEDIN

212.93K€ | Lider

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Duración del proyecto: 23 meses Fecha Inicio: 2019-11-07
Fecha Fin: 2021-10-27

Líder del proyecto

THE UNIVERSITY OF EDINBURGH No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 213K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto The development of an organism requires the fine-tuned balance between self-renewal and differentiation of pluripotent cells. Pluripotency is controlled by a group of transcription factors (TFs) that constitute the Pluripotency Gene Regulatory Network (PGRN). OCT4 is a core component of the PGRN and is required to specify pluripotency in vivo and to maintain pluripotency in vitro in embryonic stem cells (ESCs). OCT4 is also required for survival of unipotent primordial germ cells (PGCs). However, it is still not clear how a pluripotency-associated TF like OCT4 can also be required in both ESCs and in more differentiated cells. In this proposal, I will address the hypothesis that OCT4 function in ESCs and PGCs requires the targeting of distinct cis-regulatory elements (CREs - enhancers and promoters) in the two systems. By comparing the genome-wide distribution of OCT4 in ESCs and PGCs, I will identify the OCT4-bound CREs specific for each cell type. Using bioinformatic tools, I will identify genes associated with these elements that distinguish between the transcriptional networks regulated by OCT4 in each cell type. In ESCs a decrease of OCT4 expression correlates with an increase in OCT4 binding to chromatin. To unveil the mechanisms underpinning this phenotype, I will perturb the OCT4 concentration in ESCs by combining targeted genome editing and protein degradation assays. I will extend studies of altering OCT4 concentration to PGCs using similar approaches. In addition, I will assess the hypothesis that physical interactions between CREs play a defining role in cell-specific gene expression. I will use 3D genome assays to determine whether the context-dependent function of OCT4 in ESCs and PGCs depends upon the regulation of distinct interactions between different sets of CREs in each cell type. Using cutting-edge assays, this action will shed light on the dual activity of OCT4 in ESCs and PGCs, providing new insights into stem cell biology.

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