In HER2-positive disease, our findings associate genes such as ARG2, S100A1, MT2A, EIF4EBP1, KLF4, BTG3, and BAG1 to be associated with favourable prognosis through their roles in metabolic regulation, oxidative stress mitigation, and tumour suppression [91,92,93]. The gene discussed is ARG2; the disease is neoplasm.