The bone marrow function of all cancer patients, but particularly of those who lose weight, is vulnerable to the toxic actions of most cancer therapy regimens. Damage to the bone marrow function reduces the numbers of white blood cells and platelets that increases the risk of infections and internal bleeding, respectively. This sets a serious limit on the doses and frequencies of practically all drug applications. Thus, a great additional benefit of using ZL's protein to aid cancer treatment is that it significantly protects bone marrow function. Should nevertheless infection still occur, ZL's protein may reduce ensuing inflammation often caused by LPS.