To analyze the potential relationship between m6A-related lncRNAs and the TME of BC, the level of immunocyte infiltration in cluster 1 and cluster 2 was evaluated, and we found that the infiltration level of naïve CD4 T cells, regulatory T cells (Tregs), memory B cells and plasma cells was relatively high in cluster 1, and that of neutrophils and activated memory CD4 T cells was relatively high in cluster 2 (Figure 4D). The gene discussed is CD4; the disease is breast cancer.