
IGF-I and -II mRNA is present in primary BMFs but not BME cells. Confluent cells were rinsed twice in serum-free DMEM followed by 20 h serum starvation and exposed to serum-free media for 8 h. Total RNA was isolated, DNAse treated then analyzed by RT-PCR with primers designed against bovine IGF-I, -II and the IGF-IR. Figure shows representative ethidium bromide stain of PCR products separated by agarose gel electrophoresis. Results are representative of three experiments.











