American researchers have taken an idea that is more than a hundred years old: They injected bacteria into tumors, which were then deliberately destroyed by them. In the first experiment on humans and animals, this "Biosurgery" promising. their experiments, the researchers chose a genetically modified strain of Clostridium novyi with missing toxin gene. The bacterial spores were injected directly into the cancerous tissue.
The microbes found in the oxygen-deficient tumor tissue favorable living conditions, germinate and feed it of cancer cells, they destroy by enzymes. Since these bacteria can only survive in low-oxygen environment, healthy neighboring tissue is destroyed. In initial experiments in rats with implanted brain tumors, the concept worked - the cancer cells were killed effectively leaving the adjacent tissue. Also in 16 dogs with spontaneous tumors, the treatment was…
