TGF-1 치료는 MEK 1/2 억제제로 사전 처리된 A549 세포에서 p-Smad2의 수준을 크게 높였지만, p-Smad2 수준은 사전 치료되지 않은 세포보다 낮았다.
Although TGF-1 treatment elevated the levels of p-Smad2 significantly in A549 cells pre-treated with the MEK 1/2 inhibitor, p-Smad2 levels were lower than those in the cells that were not pre-treated.