In the liver cancer (Appendix Fig S6C), Marco (red), Vti1a (green), F13a1 (blue) are largely expressed in Monocyte cells when contacting Hepatocyte I (Monocyte+Hepatocyte I), Hepatocyte II (Monocyte+Hepatocyte II), and Tumor III (Monocyte+Tumor III), respectively (Fig 5E). The gene discussed is F13A1; the disease is liver cancer.