Isolation and differentiation potential of an equine amnion-derived stromal cell line.

Stem cells represent an important tool in veterinary therapeutic field such as tissue engineering. In the present study, equine amnion-derived mesenchymal stromal cells were investigated for applications in veterinary science as an alternative source to bone marrow mesenchymal stem cells and adipose stem cells. Amnion stromal cells isolation and characterization protocol is described; the in vitro cell growth rate was calculated by measuring viable cell number over 20 days. The expression of stem cell markers such as Oct-4, Nanog, Sox-2 and CD105 was assessed by retrotranscription quantitative PCR (RT-qPCR) and differentiation into adipocytes, osteocytes and chondrocytes precursors was analyzed by cytochemical staining. This study showed that amnion stromal cells expressing stem cell markers can differentiate into mesoderm lineage and may be an alternative source to mesenchymal stem cells derived from adipose tissue and bone marrow for the use in tissue repair.