Immunofluorescence staining revealed the presence of a small number of CD117+ cells in various brain regions of mice, including dentate gyrus (DG), Cornu Ammonis 1 (CA1), and Pre‐Frontal Cortex, indicating that MCs can infiltrate the CNS in LPS‐induced depression model (Figure 1G,H). The gene discussed is KIT; the disease is depressive symptom measurement.