NCR1 and glioblastoma: On measuring the expression of NKp46 that marks activated NK cells, we observed that the GBM tumor in the Vehicle-treated mice harbored very few activated NK cells, but the scar tissue region of CCP-treated and rescued mice displayed a large number of NK cells and an 800% increase in NKp46 fluorescence compared to the Vehicle-treated group (Fig. 1a and b) [10, 27].