Isolation of SSEA-3-Positive Muse Cells in Canine and Feline Adipose Tissues.

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)

Muse cells are endogenous pluripotent-like stem cells identified as stage-specific embryonic antigen-3 (SSEA-3)-positive subpopulations in the bone marrow, peripheral blood, and connective tissues of various organs. Clinical trials conducted by intravenous injection of donor-Muse cells, without the use of immunosuppressive drugs, have demonstrated safety and efficacy across multiple diseases. Since the epitope recognized by the anti-SSEA-3 antibody is a glycolipid, rather than a protein produced by a genetic code, the antibody may detect Muse cells across different species. Muse cells possess unique properties, including the ability to survive under stressful conditions, spontaneously turn into different cell types from all three primary layers of the body, and repair tissues in living organisms. They have been isolated from several mammalian species. However, their presence and characteristics in companion animals, such as canine and feline, remain unexplored, despite the growing demand for treatments that regenerate tissues in veterinary medicine. Adipose-derived stem cells (ADSCs) were established from adipose tissue taken during routine veterinary procedures. SSEA-3-positive cells were isolated using fluorescence-activated cell sorting. SSEA-3-positive cells were found in both canine (0.93 ± 0.16%) and feline (2.9 ± 0.15%) ADSCs, similar to human rates. Gene expression anal

Evidence level

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

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