Tumor cell JMJD6 supports M2 macrophage differentiation and tumor growth in breast cancer mouse model. A, Tumor growth after inoculation of scramble (light gray) and Jmjd6 KO (dark gray) PyMT-41C cells in C57BL/6 mice. P value is calculated with two-way ANOVA, Sidak multiple comparison test. Error bars shows S.D. B, Tumor volume of scramble (light gray) and Jmjd6 KO (dark gray) PyMT-41C cells in C57BL/6 mice at the experimental endpoint of 35 days. P value is calculated with two-way ANOVA, Sidak multiple comparison test. Each dot represents a different mouse. Error bars shows SD among samples. C, Top, Representative images of two scramble PyMT-41C cells-derived tumors (clone A1 and clone B1) and two Jmjd6-KO PyMT-41C cells-derived tumors (clone A2A and clone C1A). Below, H&E staining of the different tumors. D, Percentage of CD45+ immune cells, CD11b+ myeloid cells, F4/80+ monocytes, macrophages, CD206+ M2-like macrophages over F4/80+ macrophages and PD-L1+ immunosuppressive macrophages over F4/80+ macrophages in tumors derived from scramble or Jmjd6 KO PyMT-41C cells. P value is calculated with unpaired t test. Each dot represents a different mouse. Error bars show SD among samples. E, IHC analysis of ANXA1 expression in tumors derived from scramble and Jmjd6 KO PyMT-41C cells injected in C57BL/6 mice.