Just as the title says.
I am thinking if the air cushion in some sport shoes can reduce the pressure to my knees.
Now I wear running shoes which have almost nothing, I adjust the pressure by running really slow.
Cushioning may help prevent additional stress to your knee but it wont make the pain go away.
Check this thread for help on removing your knee pain while running. Should I run along?
Also I recommend going to a specialty running shoe store to ensure you have the right type of shoe for your feet. Good luck and good running.