How stem cell therapy addresses multiple sclerosis through immune modulation, neuroprotection, and remyelination. HSCT vs MSC therapy comparison, clinical research, and candidacy criteria.
Multiple sclerosis involves both inflammatory demyelination and progressive neurodegeneration. MSC therapy addresses both components: the immunomodulatory properties of MSCs recalibrate the dysregulated immune response, while their neurotrophic factors support remyelination and neuroprotection. This dual mechanism distinguishes MSC therapy from conventional DMTs, which primarily prevent new damage.
Clinical evidence is strongest for relapsing-remitting MS (RRMS), where MSC therapy significantly reduces relapse rates and MRI lesion activity. For secondary progressive MS (SPMS) and primary progressive MS (PPMS), benefits focus more on slowing progression and improving symptoms rather than relapse reduction. Individual assessment determines the most appropriate protocol.
HSCT (hematopoietic stem cell transplant) provides a more complete immune reset and is highly effective for aggressive RRMS, but involves chemotherapy conditioning and carries 1-2% mortality risk. MSC therapy is safer (no chemotherapy), suitable for a broader range of patients, and can be repeated safely. HSCT is typically reserved for cases that fail multiple DMTs.
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