Further analysis of the tumor cells revealed that after 2 days of culture, CD45+eGFPlow or + (p1, 2 & 3) and CD45−eGFPlow populations (p4) abnormally expressed all the lineage markers (CD3ε, CD11b, B220, Ter-119 and Gr-1) with variable levels. This evidence concerns the gene PTPRC and neoplasm.