One possibility would be to have an animated texture but since A5 is not too great on that I would prefer the second method:
First create the parts you want to glow and build it as an entity map. Place it into your level and write a little action that sets LIGHTRANGE to 0 and sets the entity's LIGHT flag. Then use a loop to have the GREEN or whatever value counted up and down. For bigger parts you should maybe place invisible blocks so that the collision detection works fine.