CD9 and cancer: Regarding growth factors, HBEGF in Monocytes, Neutrophils, Dendritic Cells, GMP Cells, Macrophages, Alveolar type II Cells, SLC16A7 + Cells, and Endothelial Cells, Basal Cells, and Luminal epithelial Cells was associated with high levels in Cancer Cells expressed CD9 interacts to mediate tumorigenesis and proliferation.