Tapeworm drug inhibits colon cancer metastasis
A compound that for about 60 years has been used as a drug against tapeworm infection is also apparently effective against colon cancer metastasis, as studies using mice have now shown. The compound silences a gene that triggers the formation of metastases in colon cancer. Professor Ulrike Stein (Experimental and Clinical Research Center, a joint cooperation between the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, (MDC)) and her research group made this discovery in collaboration with Professor Robert H. Shoemaker of the National Cancer Institute (NCI) in Frederick, Maryland. Plans are already underway with Professor Peter M. Schlag (Charite Comprehensive Cancer Center) to conduct a clinical trial.
Colon cancer is one of the most common tumor diseases in Western countries. In Germany alone, there are approximated 73 000 new cases of the disease every year. Despite surgery, chemotherapy and radiation therapy, only about half of the affected patients are cured.
The reason is that around 20 percent of the colon cancer patients already have metastases at diagnosis and in about one third of the patients, metastasis occurs despite successful initial treatment. Of these patients with metastatic colon cancer, the five-year survival rate is only about 10 percent. By contrast, for nonmetastatic colon cancer patients the survival rate is 90 percent.
Scientists have known for several years that the gene S100A4/metastasin can initiate colon cancer metastasis. Five years ago Professor Stein, working together with Professor Schlag and Professor Walter Birchmeier (MDC), showed how this gene is regulated. They found that the beta-catenin gene, when mutant, activates this S100A4/metastasin gene, thus triggering colon cancer metastasis. Beta-catenin normally regulates cellular adhesion.
The scientists looked for compounds that block the expression of the metastasin gene. They screened 1280 compounds and found what they were looking for: niclosamide, a drug until now approved for use to treat intestinal parasite infections from tapeworms.
Surprisingly, the researchers discovered that niclosamide inhibits the beta catenin-driven expression of the S100A4/metastasin gene, both in the cell culture and in mice. The animals had fewer metastases. Next, the researchers want to conduct clinical trials to find out whether the compound is also effective in patients with metastasizing colon cancer.
More information: Journal of the National Cancer Institute, Vol. 103, No. 12, June 17, 2011.
Provided by Helmholtz Association of German Research Centres
- Novel marker of colon cancer Oct 23, 2008 | not rated yet | 0
- New biomarkers for predicting the spread of colon cancer Jan 13, 2010 | not rated yet | 0
- Tapeworm Drug May Hold Promise For Colon Cancer, Future Research Nov 04, 2009 | not rated yet | 0
- What identifies cancer cells causing relapse and metastasis? Not CD133 May 23, 2008 | not rated yet | 0
- Sibling study could lead to better treatments for inherited form of colon cancer Nov 03, 2008 | not rated yet | 0
- Motion perception revisited: High Phi effect challenges established motion perception assumptions Apr 23, 2013 | 3 / 5 (2) | 2
- Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update) Apr 02, 2013 | 4.5 / 5 (11) | 5
- The visual system as economist: Neural resource allocation in visual adaptation Mar 30, 2013 | 5 / 5 (2) | 9
- Separate lives: Neuronal and organismal lifespans decoupled Mar 27, 2013 | 4.9 / 5 (8) | 0
- Sizing things up: The evolutionary neurobiology of scale invariance Feb 28, 2013 | 4.8 / 5 (10) | 14
Why is zone 1 in liver more prone to ischemic injury?
May 23, 2013 Hi, Is it because around central vein, there is only deoxygenated blood from the vein where as in the periphery there is hepatic artery. Also why...
How can there be villous adenoma in colon, if there are no villi there
May 22, 2013 As title suggest. Thanks :smile:
How can there be a term called "intestinal metaplasia" of stomach
May 21, 2013 Hello everyone, Ok Stomach's normal epithelium is simple columnar, now in intestinal type of adenocarcinoma of stomach it undergoes "intestinal...
Pressure-volume curve: Elastic Recoil Pressure don't make sense
May 18, 2013 From pressure-volume curve of the lung and chest wall (attached photo), I don't understand why would the elastic recoil pressure of the lung is...
If you became brain-dead, would you want them to pull the plug?
May 17, 2013 I'd want the rest of me to stay alive. Sure it's a lousy way to live but it beats being all-the-way dead. Maybe if I make it 20 years they'll...
MRI bill question
May 15, 2013 Dear PFers, The hospital gave us a $12k bill for one MRI (head with contrast). The people I talked to at the hospital tell me that they do not...
- More from Physics Forums - Medical Sciences
More news stories
In recent years, microRNAs (miRNAs) and other non-coding RNAs are small molecules that help control the expression of specific proteins. In recent years they have emerged as disease biomarkers. miRNA profiles have been used ...
Cancer 23 hours ago | not rated yet | 0
Cancer cells spread and grow by avoiding detection and destruction by the immune system. Stimulation of the immune system can help to eliminate cancer cells; however, there are many factors that cause the immune system to ...
Cancer 23 hours ago | 5 / 5 (1) | 0
Researchers from London's Kingston University have begun a two-year study which could help prolong the lives of people with colorectal tumours.
Cancer May 24, 2013 | 5 / 5 (1) | 0
Transformative research from Western University has identified new hormones in the body which may suppress breast cancer and stimulate the regression of breast tumors.
Cancer May 24, 2013 | 5 / 5 (2) | 0
(Medical Xpress)—Curtin University researchers have found evidence that targeting specific cells in the body can reverse the effects of cancer on the immune system.
Cancer May 24, 2013 | 5 / 5 (4) | 0
Coenzyme Q10 decreases all cause mortality by half, according to the results of a multicentre randomised double blind trial presented today at Heart Failure 2013 congress. It is the first drug to improve heart failure mortality ...
5 hours ago | 5 / 5 (1) | 4
Women at a particular stage in their monthly menstrual cycle may be more vulnerable to some of the psychological side-effects associated with stressful experiences, according to a study from UCL.
23 hours ago | 3.7 / 5 (3) | 4 |
Heart failure accelerates the aging process and brings on early andropausal syndrome (AS), according to research presented today at the Heart Failure Congress 2013. AS, also referred to as male 'menopause', was four times ...
5 hours ago | not rated yet | 1
Two mutations central to the development of infantile myofibromatosis (IM)—a disorder characterized by multiple tumors involving the skin, bone, and soft tissue—may provide new therapeutic targets, according to researchers ...
21 hours ago | 3 / 5 (2) | 0 |
(AP)—Department of Justice lawyers have again asked a federal appeals court in New York to delay lifting age restrictions and prescription requirements on an emergency contraceptive popularly known as the morning-after ...
5 hours ago | not rated yet | 0
Mortality and length of stay are highest in heart failure patients admitted in January, on Friday, and overnight, according to research presented today at the Heart Failure Congress 2013. The analysis of nearly 1 million ...
5 hours ago | not rated yet | 0