Cultivation of tissue from the matrix of the stratum medium of the equine and bovine hoof walls.

The research article describes a study on the cultivation of tissue from the matrix of the stratum medium within the walls of horse and cow hooves. The tissue was successfully grown on a microporous membrane under specific conditions, with the mix of cell types varying depending on the temperature.

Methodology

• The researchers took explants, or tissue samples, from the matrix of the stratum medium of the wall of both equine (horse) and bovine (cow) hooves.
• These explants were then cultured on a microporous membrane using a standard culture medium. A microporous membrane is a tightly woven material that allows small molecules to pass through while keeping larger molecules and cells in place.
• The culture was incubated at two different temperatures, 37 degrees Celsius and 34 degrees Celsius, to observe the effects of temperature on the growth and composition of the cell culture.

Findings

• After incubation at 37 degrees Celsius, the resulting growth was a mix of keratinocytes and fibroblasts, with a higher number of fibroblasts. Keratinocytes are the predominant cells in the skin’s outer layer, while fibroblasts are cells that produce the structural framework for tissues.
• When the samples were incubated at 34 degrees Celsius, the keratinocytes were the dominant cells. At this temperature, these cells covered the explant’s lateral and basal surfaces.
• There were significant differences in the growth patterns of cells at the border of the original epidermis and the borderline of the explant’s contact with the membrane. The former exhibited outgrowth of rounded cell aggregates protruding into the medium, while the latter displayed a layered cell growth covering a substantial part of the membrane.
• Interestingly, the keratinocytes exhibited a differentiation pattern characteristic only of hoof keratinocytes in the outer layers where they covered the cut surfaces of explant dermis, but this differentiation was not observed in the lateral outgrowth. Differentiation refers to the process by which cells become specialized during development.

Conclusions

• The mix of cell types after cultivation varied with the temperature – fibroblasts dominated at 37°C and keratinocytes at 34°C.
• The keratinocytes from hoof tissue showed distinct growth patterns and differentiation properties, suggesting that the environment or the origin of the cells may influence their behavior in culture.