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GLI-AGE: Role of glial cells in age-related muscle sarcopenia and NMJ-disfunction.

Project description

Uncovering the role of glial cells in age-related muscle loss

Sarcopenia is associated by the progressive loss of muscle mass and strength with ageing. A key feature of the condition is the degeneration of neuromuscular junctions, the connections between nerves and muscles. Glial cells, known to support nerve regeneration following injury, may also play an important role in age-related neuromuscular decline, but this remains largely unexplored. With the support of the Marie Skłodowska-Curie Actions programme, the GLI-AGE project investigates glial cell activity in aged muscle using high-resolution spatial gene expression technology. The goal is to identify molecular targets implicated in sarcopenia progression, paving the way for novel therapeutic strategies for preserving neuromuscular function and improving quality of life in older adults.

Objective

Sarcopenia, marked by the progressive loss of muscle mass and strength due to aging, presents a significant public health challenge. Despite its increasing prevalence, treatment options remain limited, focusing primarily on exercise and nutraceuticals. Sarcopenia shares several pathological features with nerve injury-induced muscle atrophy, including neuromuscular junction (NMJ) degeneration. Recent studies have shown that muscle-resident Plp1+ glial cells rapidly activate a neurotrophic program in response to nerve damage. However, despite their established role in nerve regeneration, the involvement of these cells in age-related NMJ loss and muscle atrophy remains largely unexplored.
The GLI-AGE project aims to explore the potential involvement of glial cells in age-related sarcopenia. It will utilize HD Spatial Gene Expression technology (HD-ST), a cutting-edge technique that combines advanced sequencing and high-resolution imaging to map glial cell activity and interactions in aged and geriatric mice. The project’s main objectives are: (1) to spatially characterize glial cell networks in aged muscle compared to young muscle, and (2) to validate their regenerative potential by identifying molecular targets (in-vivo and in-vitro) that may be implicated in the progression of sarcopenia.
Through its multidisciplinary approach, GLI-AGE seeks to uncover novel therapeutic targets to preserve neuromuscular function and slow muscle degeneration in the elderly. The project’s findings could pave the way for innovative strategies to maintain muscle health, reduce frailty, and enhance the quality of life for older adults, aligning with Horizon Europe’s goal of promoting healthy and active aging.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE
Net EU contribution
€ 226 420,56
Address
RUE DE TOLBIAC 101
75654 Paris
France
Region
Ile-de-France Ile-de-France Paris
Activity type
Research Organisations
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Total cost
No data