However, a study involving ADT found no significant correlation between IL-2 levels (an NK cell activator) and progression-free survival (PFS) in metastatic PCa, suggesting that NK cell activity is not always predictive of overall survivor (OS) [98], despite ADT induced CD56+ increased NK cells in PCa, was associated with good prognosis [24]. The gene discussed is IL2; the disease is posterior cortical atrophy.