Breakthrough in bacterial immunotherapy: ACTM-838 targets solid tumors Solid tumors have long posed a challenge for immunotherapy, often creating an immune-suppressive microenvironment that thwarts even the most advanced treatments. A new study published in Oncotarget (Volume 16, October 6, 2025) introduces ACTM-838, a novel systemically delivered bacterial immunotherapy designed to enrich in solid tumors and…