Targeting bacteria causing ulcers may prevent stomach cancer Eliminating Helicobacter pylori bacterium -- the main cause of stomach ulcers - with a short course of therapy of two commonly used medicines may help to reduce the risk of gastric cancer
Evolution, not just mutation, drives development of cancer A new article argues against the commonly held 'accumulation of mutations' model of oncogenesis in favor of a model that depends on evolutionary pressures acting on populations of cells.
Sound waves gently cull circulating tumor cells from blood samples The capture and analysis of circulating tumor cells (CTCs) is a valuable tool for cancer treatment decisions and therapy monitoring. Researchers are using sound waves to isolate CTCs without physical contact or damage to the cells, assuring that their original characteristics are maintained. The contact-free nature of the method offers the potential for more precise cancer treatment and monitoring.
Common chemicals may act together to increase cancer risk, study finds Common environmental chemicals assumed to be safe at low doses may act separately or together to disrupt human tissues in ways that eventually lead to cancer.Modified DNA building blocks are cancer's Achilles heel In studying how cells recycle the building blocks of DNA, scientists have discovered a potential therapeutic strategy for cancer. They found that normal cells have highly selective mechanisms to ensure that nucleosides -- the chemical blocks used to make new strands of DNA -- don't carry extra, unwanted chemical changes. But the scientists also found that some types of cancer cells aren't so selective. These cells incorporate chemically modified nucleosides into their DNA, which is toxic to them. The findings indicate that it might be possible to use modified nucleotides for specific killing of cancer cells.