PTPRC and ischemic stroke: In our previous work (Gójska-Grymajło et al. 2012), we have shown that the CD45–C34+, CD45–CD34 + CXCR4+, and the CD45–CXCR4+ cells are present in the peripheral blood of ischemic stroke patients in low numbers, but their levels and dynamics seem to correlate with the functional status of the patients.