To identify the key genes, we mapped these differential genes to a bulk data set containing CML patients, healthy people, and patients who achieved remission after treatment, and found some genes were related to CML treatment, previously reported to play an important role in cancer progression; for example, IL7R can affect the development of T cells, and its mutations can induce the occurrence of disease.54 The gene discussed is IL7R; the disease is chronic myelogenous leukemia, BCR-ABL1 positive.