NCR3 and neoplasm: While in the control group (figure 3c and 4), rapid increase in tumor size was observed in almost all the animals (87.5%), NKp30-Ig-treatement led to a substantial reduction in tumor progression; in 50% of the mice treated with NKp30-Ig the tumor was drastically reduced to 20% or bellow of its original size (regarded as ‘efficient treatment’), 25% showed partial effect while 25% did not respond and developed progressive tumors.