Dendritic cells are derived from hematopoietic bone marrow progenitor cells. Wnt signaling induces differentiation of pluripotent stem cells into mesoderm and endoderm progenitor cells. Expansion potential of hematopoietic progenitor cells is also reduced. It is expressed on the surface of many hematopoietic progenitor cells. PDGF is also known to maintain proliferation of oligodendrocyte progenitor cells. Hemoglobin is also found outside red blood cells and their progenitor lines. Therein the antimatter forms a wind which crashes upon the ejecta of the progenitor supernovae. All of the earliest traditional Clan Mackenzie histories claim descent from a Fitzgerald progenitor. Posthumously, temple names with the imperial characters of "progenitor" () and "ancestor" () were used. Theodoric thereby was a grandson of the Wettin progenitor Theodoric I. The wild progenitor of the domestic horse is now extinct. V small block with the LT1 being the progenitor of this family and generation. Ambedkar himself believed Walangkar to be the progenitor. Their common language is Nepal Bhasa or the linguistic progenitor of that language. The progenitor of order Phacopida is unclear.