Boosting the Therapeutic Potential of Extracellular Vesicles Derived From Mesenchymal Stem Cells via Advanced Preconditioning for Neurodegenerative Disorders

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Acute and chronic neurodegenerative conditions (NDs) are major causes of disability and mortality worldwide. Acute NDs encompass conditions such as stroke, traumatic brain injury (TBI), and spinal cord injury (SCI). On the other hand, chronic NDs include Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), multiple sclerosis (MS), and amyotrophic lateral sclerosis (ALS). Currently, no definitive cure exists for these diseases, and available therapies focus primarily on slowing the progression of symptoms. Mesenchymal stem cells (MSCs), due to their multilineage differentiation capacity, immunomodulatory abilities, and regenerative properties, have gained attention in regenerative medicine. In recent years, extracellular vesicles (EVs) derived from MSCs have shown great promise as a cell-free therapeutic approach, eliminating the risks associated with direct MSCs use, such as tumorigenicity and poor cell survival after transplantation. EVs have emerged as powerful mediators of intercellular communication and tissue repair, exhibiting immunomodulatory, anti-inflammatory, and proregenerative properties. However, limitations such as low EVs yield and reduced efficacy due to MSCs replicative senescence restrict their therapeutic potential. Preconditioning strategies, including hypoxia, 3D cultures, and biochemical priming, have been explored in other fields

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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