The invention discloses an application of an Nrf2 activator to preparation of an anti-artificial joint
wear particle induced
osteolysis drug. Researches show that artificial joint wear particles can inhibit expression of a
cell kernel factor E-2-related factor 2 (Nrf2), and reduce activity of an anti-oxidation reaction element (ARE) regulated and controlled by the downstream of the Nrf2, reduced capacity of controlling an oxidation-reduction reaction in a
cell causes
active oxygen (ROS) and a
lipid peroxidation product
malondialdehyde (MDA) in
osteoblast to be increased, so that the ROS generation and degradation
homeostasis is disordered, the activity of the
osteoblast is inhibited, and the balance between
osteoclast and the
osteoblast is broken. After the Nrf2 activator Oltipraz is added, the content of the ROS in cells can be obviously reduced, and the generation of the
lipid peroxidation product MDA is inhibited. In addition, a mouse
skull dissolution model is established by implanting CoCrMo nano wear particles under the
skin of a mouse
skull, effective intervention is applied by
intraperitoneal injection of Oltipraz, and in-vivo experiments further prove that the Oltipraz has a remarkable inhibition effect on
osteolysis induced by the artificial joint wear particles.