The invention relates to the technical field of biological
medicine, in particular to application of a
pralatrexate derivative as a UGT1A6 inhibitor.
Computer simulation finds that the
pralatrexate derivative can be stably combined to an N-terminal structural domain of UGT1A6, so that the normal
physiological function of UGT1A6
protein is inhibited, and the
pralatrexate derivative can be used as a UGT1A6 inhibitor. Besides, in-vitro experiments prove that the pralatrexate derivative can remarkably inhibit interaction between UGT1A6 and
binding protein thereof, reduce the activity of gastric
cancer cells and inhibit proliferation, migration and infiltration of the gastric
cancer cells in a
gastric cancer cell line, so that the pralatrexate derivative can be used for preparing drugs for treating or improving gastric
cancer and gastric cancer tumor
metastasis.