mRNA expression of mid-old fibroblasts co-cultured with young and mid-old fibroblasts
Examination of the difference in mRNA expression profile between mid-old fibroblasts co-cultured with mid-old fibroblasts and mid-old fibroblasts co-cultured with young fibroblasts Overall design: Mid-old fibroblasts (P28) are co-cultured with mid-old fibroblasts (P28) or young fibroblasts (P8)