Mesenchymal stem cells in neurological disorders: Insights from clinical trials.

Several human studies show positive signals, while research methods and sample sizes continue to develop.

• 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)

Mesenchymal stem cells (MSCs) exhibit unique properties that make them promising candidates for cell therapy, particularly in neurological disorders. They can be derived from various tissues, with bone marrow, adipose tissue, umbilical cord, and placenta being the most common sources. Evidence suggests that the tissue of origin significantly influences MSC characteristics, including secretome composition, proliferation rate, and adhesion capacity. Clinical trials have demonstrated the safety and therapeutic potential of MSCs in conditions such as spinal cord injury, multiple sclerosis, and stroke. MSC therapy has been associated with improvements in motor, sensory, and cognitive functions, as well as enhanced quality of life. Mechanistically, MSCs promote neuroprotection, reduce inflammation, and modulate immune responses. In spinal cord injury, intrathecal administration of adipose- and bone marrow-derived MSCs has led to significant functional recovery, with single high-dose treatments often yielding better outcomes than multiple lower doses. In amyotrophic lateral sclerosis, bone marrow-derived MSCs have shown potential in slowing disease progression, though higher doses do not always result in greater benefits. In multiple sclerosis, high doses of umbilical cord-derived MSCs improved quality of life and prevented disease progression, whereas lower doses of bone marrow-deriv

Evidence level

Several human studies show positive signals, while research methods and sample sizes continue to develop.

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