Expression of M2- and M1-associated molecules by TAMs and MSCs. (A) RNA from untreated and IL-4-treated TAMs or untreated and IL-4-treated MSC-2 cells was used for real-time PCR analysis corresponding to the indicated genes. (B) RNA from untreated and LPS-treated TAMs or untreated and LPS-treated MSC-2 cells was analyzed by real-time PCR for the mRNA expression of the indicated genes. Results are given as fold increase in mRNA expression with respect to that in untreated MSC-2 cells. Data were normalized to expression of actin gene and representative of 3 independent experiments done in triplicate.