ACKR3 and neoplasm: The study monitored intratibial primary tumor growth over time and lung metastasis at sacrifice of mice, which were intratibially injected with LacZ gene transduced 143B cells that had been superinfected with an empty retroviral vector (143B-LacZ-EV cells) (control) or with the same vector encoding HA-tagged CXCR7 (143B-LacZ-HA-X7 cells).