Description
Initiated from the mammary gland tissue of an adult NAMRU mouse and one of a series of epithelial cell lines derived from normal glandular tissue of mice. The cells exhibit many ultrastructural features of secretory epithelium as well as desmosomes or intermediate junctions, microvilli and tonofibrils. Hemicytes or domes develop when dense monolayers are maintained for several weeks without sub-cultivation. The cells produce benign cystadenomas when inoculated into isogenic mice and are negative for type C oncornaviruses