Characterization and Multilineage Differentiation of Domestic and Black-Footed Cat Mesenchymal Stromal/Stem Cells from Abdominal and Subcutaneous Adipose Tissue.

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)

Transplantation of mesenchymal stem cells (MSCs) isolated from bone marrow or adipose tissue is emerging as a promising tool for cell replacement therapy and regenerative medicine in domestic and endangered animal species. Defining the differentiation capability of adipose-derived mesenchymal stromal/stem cells (AMSCs) collected from different depot sites of adipose tissue will be essential for developing strategies for cell replacement therapy. In the present study, we compared the biological characteristics of domestic cat AMSCs isolated from visceral fat of the abdominal cavity (AB) with AMSCs from subcutaneous (SQ) tissue, and the functional capability of domestic and black-footed cat (Felis nigripes) AMSCs to differentiate into other cell types. Our results showed that both domestic and black-footed cat adipose-derived stromal vascular fractions contained AMSCs. Both domestic cat AB- and SQ-AMSCs showed important clonogenic ability and the minimal MSC immunophenotype as defined by the International Society for Cellular Therapy in humans. However, domestic cat AB-AMSCs had higher percentages of cells positive for MSCs-associated cluster of differentiation (CD) markers CD90(+) and CD105(+) (92% and 80%, respectively) than those of SQ-AMSCs (77% and 58%, respectively). Although these results may suggest that AB-AMSCs may be more multipotent than SQ-AMSCs, both types of cells

Evidence level

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

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