Considering chemotactic factors (Fig. 6B and Supporting Information Fig. S5B), the mRNA expression of CCL5, CXCL9, CXCL16, and CCL25 was higher in HCCLM3 cells from micrometastatic regions than in cells from primary tumor sites when cocultured with MSCs. The gene discussed is CXCL9; the disease is neoplasm.