 The MAGN platform is a novel approach to delivering therapeutic agents to cancerous tumors. It involves engineering macrophage cells to carry biologically responsive nanospunges, which are loaded with drugs and then delivered to the tumor site. Once there, the nanospunges release the drugs when exposed to the acidic environment found in tumors. This allows for more effective treatment of advanced metastatic cancers than traditional methods. This article was authored by Xueliao, Guidong Gong, Meng Yuan Dai, and others.