culture condition:antigen-presenting cell culture condition:CD34+ cell 2010-02-01T10:53:27Z BTO:0004408 BrendaTissueOBO Cells expressing CD34 are normally found in the umbilical cord and bone marrow as hematopoietic cells, a subset of mesenchymal stem cells, endothelial progenitor cells, endothelial cells of blood vessels but not lymphatics, except pleural lymphatics, mast cells, a sub-population dendritic cells in the interstitium and around the adnexa of dermis of skin, as well as cells in soft tissue tumors. Marion