To evaluate the impact of tumor cell–expressed Egfl6 on the tumor immune microenvironment, we stably expressed Egfl6 in the 2F8c (2F8c-Egfl6) and ID8 (ID8-Egfl6) murine OvCa cell lines, both of which can be grown syngeneically in C57BL/6J (WT) mice. Here, EGFL6 is linked to neoplasm.