Species: mouse - Mus musculus, Swiss Production: triglycerides Note: Cells undergo a pre-adipose to adipose like conversion as they progress from a rapidly dividing to a confluent and contact inhibited state. A high serum content in the medium enhances fat accumulation; tested and found negative for ectromelia virus (mousepox); the cells should be grown in plastic flasks, they do not grow well on some types of glass surfaces; a saturation density of approximately 50000 cells per sq cm can be reached.