![New Bowel Cancer Drug Target Discovered New Bowel Cancer Drug Target Discovered](https://images.medindia.net/health-images/1200_1000/cancer-drug.jpg)
‘Bowel cancer can affect your daily life in different ways, depending on what stage it's at and the treatment you are having. How people cope with their diagnosis and treatment varies from person to person.’
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Most bowel cancers are caused by a mutation in a gene called APC that in its healthy form acts to prevent cancer formation. Mutated APC genes cause excess activity of a cell signalling pathway called 'Wnt', which has been associated with bowel cancer for over 20 years. ![twitter](https://images.medindia.net/icons/news/social/twitter.png)
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Wnt signalling is vital for many organs, so drugs designed to block Wnt signalling in cancer cause very toxic side effects in other parts of the body. This has been a major hurdle in developing effective and safe bowel cancer therapies. The team at the Crick have found a way to exclusively target Wnt signalling in tumour cells, that reduces growth of tumours derived from colon cancer cells without the toxic effects on healthy cells. Their findings will be published in Cell Reports.
The team used the gene-editing tool CRISPR to cut the APC gene at various positions, and found a crucial part of the gene that causes dangerous levels of Wnt signalling and cancer formation.
Using a number of molecular techniques, they identified a protein involved in over activation of the Wnt pathway in cancer. Preventing the activity of this protein by genetic deletion or blocking it with drugs caused a reduction in Wnt signalling in cancer cells and slowed down tumour growth in mice. Importantly, the drug was found to act exclusively on the tumour cells, and have no effect on Wnt signalling in healthy cells.
"Current treatment for bowel cancer is mostly generic, while targeted therapy will help future development of personalised medicine," says Vivian Li, senior author of the paper and Group Leader at the Francis Crick Institute. "The protein that we've identified holds great promise as a therapeutic target for bowel cancer treatment."
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Source-Eurekalert