ID8 Cells

The ID8 cell line is a widely utilized murine model derived from spontaneous transformation of C57BL/6 mouse ovarian surface epithelial (MOSE) cells. This cell line closely mimics human epithelial ovarian cancer, making it a vital tool for preclinical research into ovarian cancer pathophysiology and treatment. ID8 cells are known for their ability to grow intraperitoneally in immunocompetent C57BL/6 mice, facilitating studies of tumor progression and metastasis. This model is particularly relevant for examining peritoneal tumor formation and ascites development, which are key features of advanced ovarian cancer in patients.

ID8 cells exhibit the capability to form tumors when injected intraperitoneally, leading to disseminated cancer throughout the abdominal cavity and ascitic fluid accumulation. These properties enable the exploration of tumor-host interactions, including the role of the immune system and tumor microenvironment in cancer progression. In studies involving immunotherapies or combined treatment approaches, ID8 has proven valuable for evaluating the effects of interventions such as chemotherapy agents like carboplatin and immune checkpoint inhibitors targeting PD-L1.

Research involving ID8 models has shown their utility in examining the influence of tumor metabolism on immune cell behavior, particularly macrophage polarization and function. For instance, tumors induced by ID8 cells can modulate the metabolism of peritoneal macrophages, altering their oxidative phosphorylation (OXPHOS) and promoting tumor growth through metabolic crosstalk. These insights have paved the way for exploring targeted metabolic therapies that may inhibit tumor-promoting immune cell adaptations.