Gene correlation network analysis of DEGs in these two NK subpopulations yielded the following results: NK(EGR1) promotes kidney cancer metastasis to Hodgkin's lymphoma (Figure 4(c)), while NK(CAPG) promotes metastasis to T-cell leukaemia, Ki-1+ anaplastic large cell lymphoma, and adult classical Hodgkin's lymphoma (Figure 4(d)). The gene discussed is EGR1; the disease is Hodgkins lymphoma.