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PlasticLiver

Financiado

Mechanisms of cell plasticity in the liver

The liver can regenerate thanks to a unique cell plasticity in which terminally differentiated cells change identity. Hepatocytes, the most abundant cell type sustaining liver metabolism, can transdifferentiate into a completely d... ver más

30/11/2024

223K€

Presupuesto del proyecto: 223K€

Líder del proyecto

KAROLINSKA INSTITUTET No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2022-06-07

Línea de financiación objetivo El proyecto se financió a través de la siguiente ayuda:

HORIZON-MSCA-2021-PF-01-01: MSCA Postdoctoral Fellowships 2021

I+D

Cerrada hace 3 años

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1 Participantes

222.73K€ | Lider

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Últimas noticias

29-11-2024: IDAE En las últimas 48 horas el Organismo IDAE ha otorgado 4 concesiones

29-11-2024: ECE En las últimas 48 horas el Organismo ECE ha otorgado 2 concesiones

29-11-2024: CMVAMADRID En las últimas 48 horas el Organismo CMVAMADRID ha otorgado 37 concesiones

Duración del proyecto: 29 meses Fecha Inicio: 2022-06-07
Fecha Fin: 2024-11-30

Líder del proyecto

KAROLINSKA INSTITUTET

TRL 4-5

Presupuesto del proyecto 223K€

Descripción del proyecto The liver can regenerate thanks to a unique cell plasticity in which terminally differentiated cells change identity. Hepatocytes, the most abundant cell type sustaining liver metabolism, can transdifferentiate into a completely different cell type to repair the bile duct epithelium, which entails not only a fate switch but also a conversion of epithelial polarity. Despite this regenerative capacity, bile duct diseases present a major clinical challenge, often requiring a liver transplant. Activating and controlling endogenous regenerative programs, which preliminary data suggest are liver region-specific, is thus a promising therapeutic strategy but requires a deeper understanding of the underlying mechanisms. Based on regional differences in the quality of regenerated bile ducts in a mouse model of Alagille syndrome, I hypothesize that bile ducts in the hilar region regenerate via cholangiocyte proliferation, yielding well-formed epithelia, while bile ducts at the organ periphery develop de novo via hepatocyte transdifferentiation, yielding malformed bile ducts with aberrant polarity. Because there are multiple cell sources for liver repair, PlasticLiver aims to account for spatial and within-cell type heterogeneity in the liver during bile duct regeneration. Taking advantage of a novel cutting-edge approach for high resolution barcode lineage tracing and gene expression profiling co-developed in my host lab, I will resolve region-specific cell sources and mechanisms in developing and regenerating livers of a mouse model of Alagille syndrome. Moreover, combining generated single cell gene expression data and microscopy analysis of healthy and regenerated tissues, I will identify molecular mechanisms and potential targets to improve epithelial polarity in regenerated peripheral bile ducts. Ultimately, PlasticLiver will yield fundamental mechanistic insights into cell fate decisions and why liver, but no other organs, uses this type of cellular plasticity.

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