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TELOVACCINE

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Targeting telomeric DNA damage response as a new strategy to fight immunosenesce...

Targeting telomeric DNA damage response as a new strategy to fight immunosenescence and improve vaccine response The immune system is remodeled with age, going through a series of changes known as immunosenescence’, including the involution of primary lymphoid organs, the contraction of the immune repertoire, a progressive lineage skewing to... ver más

28/02/2025

150K€

Presupuesto del proyecto: 150K€

Líder del proyecto

IFOMISTITUTO FONDAZIONE DI ONCOLOGIA MOLECOLA... 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 2023-06-06

ERC-2022-POC2: ERC PROOF OF CONCEPT GRANTS2 Objective:Objectives:

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1 Participantes

150.00K€ | Lider

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Duración del proyecto: 20 meses Fecha Inicio: 2023-06-06
Fecha Fin: 2025-02-28

Líder del proyecto

IFOMISTITUTO FONDAZIONE DI ONCOLOGIA MOLECOLA... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 150K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto The immune system is remodeled with age, going through a series of changes known as immunosenescence’, including the involution of primary lymphoid organs, the contraction of the immune repertoire, a progressive lineage skewing towards the myeloid lineage and a low-grade pro-inflammatory status. A consequence of immunosenescence impacting the morbidity and mortality of infectious diseases is a dramatically reduced vaccine response in the elderly. Thus, reducing the burden of immunosenescence has the potential to impact the effectiveness of vaccine response. An established hallmark and driver of age-associated functional decline is telomere dysfunction. Dysfunctional telomeres are actively transcribed to generate telomeric non-coding RNAs (tncRNA) which are essential to recruit DNA Damage Response (DDR) factors at damaged telomeres, thus fueling DDR and causing cellular senescence initiation and maintenance. Sequence-specific telomeric antisense oligonucleotides (tASOs) target these tncRNAs and effectively inhibit DDR activation, ameliorating age-related phenotypes in mouse models. The telomerase-deficient (Terc-/-) mouse model, causes telomere shortening and dysfunction, recapitulating features of immunosenescence: immune system reactivity reduction, decreased long term renewal of hematopoietic stem cells and lymphocytes numbers, increased neutrophil count. tASOs treatment has beneficial long-term effect in this model, by decreasing immunosenescence and counteracting inflammation. We now plan to test the efficacy of tASOs treatment on ‘rejuvenating’ the immune system of aged wild type mice, a ‘physiological’ setting for aging. The final goal will be to assess if tASOs impact on vaccine response in both models: young Terc-/- mice and aged WT mice. In summary, we plan to determine the efficacy of tASOs to improve immune responses, including vaccines, in the elderly.

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