FIG. 1.

Morphological appearance, proliferation, and surface marker expression of Bursa-derived MSCs. (A) Bursa MSCs display spindle shaped morphology. (B) The cells were efficient in forming colonies suggesting stem cell properties. (C) Bursa MSCs displayed rapid growth in culture. (D) Flow cytometry analysis for the expression of putative MSCs surface markers demonstrated expression of CD44, CD73, and CD105 with absence of CD45; thus, the cells are devoid of hematopoetic stem cells. The cells were also negative for CD146 expression, indicating uniqueness of the cell population. MSCs, mesenchymal stem cells. Color images available online at www.liebertpub.com/tea