Methods: The proliferation of LS174T and CW-2 colorectal carcinoma cell strain inhibited by ATRA was determined using cell observation, FACS and MTT methods.

• 方法:应用细胞观察、FACS和MTT方法,研究ATRA对结肠癌不同增殖能力细胞株LS174T和CW-2细胞的生长抑制现 象。