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XX-Health

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Cerrado

X-chromosome biology and immune health in females

Females have a higher risk for autoimmune disease and lower risk of mortality from infectious disease than males, reflecting a more robust immune response in females against both self-antigens (autoimmunity) and non-self-antigens... ver más

31/10/2027

LIU

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

LINKOPINGS UNIVERSITET 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 HORIZON EUROPE notifico la concesión del proyecto el día 2022-10-10

ERC-2021-COG: ERC CONSOLIDATOR GRANTS Scope:Objectives

I+D

Cerrada hace 3 años

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

1 Participantes

LIU

2.00M€ | Lider

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Duración del proyecto: 60 meses Fecha Inicio: 2022-10-10
Fecha Fin: 2027-10-31

Líder del proyecto

LINKOPINGS UNIVERSITET No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Females have a higher risk for autoimmune disease and lower risk of mortality from infectious disease than males, reflecting a more robust immune response in females against both self-antigens (autoimmunity) and non-self-antigens (infections). Genes that escape the process of X-inactivation (XCI) are present in a higher dose in female cells and many play key roles in T-cell biology. XX-Health will reveal the role of escape genes in mediating sex-differences in T-cell response. Different cells in a tissue can inactivate the maternal (Xm) or paternal X-chromosome (Xp) (mosaicism). In addition, different ratios of Xm and Xp may become silenced in cells of a given tissue resulting in skewed X-inactivation (sXCI), rendering functional dissection of XCI very challenging. Rare females (~1:300) inactivate the same parental X-chromosome in all cells (cXCI), removing the confounding effect of mosaicism, and offering a powerful genetic system in which to dissect XCI in T-cell biology. We will develop a novel methodology, TriX-Seq, allowing high-resolution screening of sXCI and cXCI in a large (N~8,000) unselected cohort of females. Using T-cells isolated from identified cXCI females, we will (i) generate a unique multi-omic map of XCI during human T-cell differentiation at a resolution well beyond the state-of-the-art and (ii), directly test the function of alleles specifically expressed from the inactive X-chromosome (Xi) in T-cell biology. With sXCI data in hand, we will also reveal the associations, if any, of sXCI with disease risk and use the unique availability of parental and grand-parental DNA to assess the genetic origin of cXCI. Sex-bias in COVID-19 mortality has highlighted the importance of sex as a contributor to disease risk. The technical and conceptual advances delivered by XX-Health will make a seminal contribution to our understanding of this poorly understood component of human health.

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