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Published on: March 26, 2015
Taking ageing into account in remyelination-based therapies for multiple sclerosis
Julia M Rist1, Robin J M Franklin
1Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge CB3 0ES, UK.
Abstract:
MS is a disease that patients can suffer from over several decades. The effects of ageing are therefore likely to have a bearing on the natural history of the disease and the manner in which it is treated. In this review we consider how age affects remyelination, a spontaneously occurring regenerative process that follows demyelination and that often fails in MS patients. Over the last ten years several studies based on experimental rodent models of demyelination/remyelination have led to a clearer understanding of the age-associated changes in the environmental signals that govern remyelination, and reveal broad concepts shared by stem/precursor cell mediated regenerative processes in other tissues. Less clear is how age affects the intrinsic properties and responsiveness of the adult stem/precursor cells responsible for remyelination. We argue that the effects of age and in particular age-associated cell-intrinsic changes may be fundamental to the clinical success of pro-remyelination therapies, the development of which is currently the focus of intensive research activity.
Insights
Aging impacts multiple sclerosis (MS) progression and treatment. This review explores how age affects remyelination, a key regenerative process often impaired in MS patients, influencing future therapies.
Area of Science:
- Neuroscience
- Regenerative Medicine
- Aging Research
Background:
- Multiple sclerosis (MS) is a chronic, demyelinating disease.
- Aging influences disease progression and treatment efficacy in MS.
- Remyelination, a natural repair process, frequently fails in MS patients.
Purpose of the Study:
- To review the impact of aging on remyelination in the context of MS.
- To explore age-associated changes in environmental signals and intrinsic cell properties affecting remyelination.
- To discuss the implications for developing pro-remyelination therapies for MS.
Main Methods:
- Review of experimental rodent models of demyelination/remyelination.
- Analysis of age-associated changes in environmental signals governing remyelination.
- Examination of age effects on intrinsic properties of stem/precursor cells.
Main Results:
- Studies reveal age-associated changes in environmental signals crucial for remyelination.
- These changes share concepts with stem/precursor cell regeneration in other tissues.
- The impact of age on intrinsic stem/precursor cell properties remains less understood.
Conclusions:
- Age-associated changes, particularly cell-intrinsic ones, may fundamentally affect pro-remyelination therapy success.
- Understanding aging's role is critical for advancing MS regenerative treatments.
- Targeting age-related cellular mechanisms could enhance therapeutic outcomes in MS.
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