Cell line of mouse malignant fibrous histiocytoma with spontaneous metastatic potential

A new murine malignant fibrous histiocytoma (MFH) cell line was established from a 4-hydroxyaminoquinoline 1-oxide-induced MFH. This cell line was followed by a contiguous sheet, and a confluent monolayer was established after 12 days incubation. These cells could be serially transplanted into the subcutaneous tissue of mice, the success rate becoming 100% after the 9th passage. Transplanted tumors demonstrated rapid growth and displayed a high potential for metastasis to the lung after the 16th passage. And a 100% lung metastasis rate was observed for MFH cells after the 20th passage. Histologically, these metastatic tumors retained features of the primary tumor.