Navigation Links
Worm discovery could help 1 billion people worldwide

Scientists have discovered why some people may be protected from harmful parasitic worms naturally while others cannot in what could lead to new therapies for up to one billion people worldwide.

Parasitic worms are a major cause of mortality and morbidity affecting up to a billion people, particularly in the Third World, as well as domestic pets and livestock across the globe.

Now, University of Manchester researchers have, for the first time, identified a key component of mucus found in the guts of humans and animals that is toxic to worms.

"These parasitic worms live in the gut, which is protected by a thick layer of mucus," explained Dr David Thornton, from the University's Wellcome Trust Centre for Cell Matrix Research. "The mucus barrier is not just slime, but a complex mixture of salts, water and large 'sugar-coated' proteins called mucins that give mucus its gellike properties.

"In order to be able to study these debilitating worm diseases, we have been using a mouse model in which we try to cure mice of the whipworm Trichuris muris. This worm is closely related to the human equivalent, Trichuris trichiura.

"We previously found that mice that were able to expel this whipworm from the gut made more mucus. Importantly, the mucus from these mice contained the mucin, Muc5ac. This mucin is rarely present in the gut, but when it is, it alters the physical properties of the mucus gel."

Co-lead on the study, Professor Richard Grencis, from the Faculty of Life Sciences, continued: "For this new research, we asked how important Muc5ac is during worm infection by using mice lacking the gene for Muc5ac. We found that mice genetically incapable of producing Muc5ac were unable to expel the worms, despite having a strong immune response against these parasites. This resulted in long-term infections.

"Furthermore, we discovered the reason for the importance of Muc5ac is that it is 'toxic' for the worms and damages their health."

The study, published in the Journal of Experimental Medicine and featured in Nature's 'research highlights' today (Thursday), found that Muc5ac is also essential for the efficient expulsion from the gut of other types of worm that cause problems in humans. These include the hookworm, and the spiral threadworm. Together, these worms cause mortality and morbidity in up to one billion people across the globe.

Dr Sumaira Hasnain, the lead experimentalist on the project, added: "For the first time, we have discovered that a single component of the mucus barrier, the Muc5ac mucin, is essential for worm expulsion. Our research may help to identify who is and who isn't susceptible to parasitic worms, and it may eventually lead to new treatments for people with chronic worm infections."


Contact: Aeron Haworth
University of Manchester

Related biology news :

1. Chemical equator discovery will aid pollution mapping
2. Sirtris review of sirtuin therapeutics for diseases of aging in Nature Reviews Drug Discovery
3. Groundbreaking discovery may lead to stronger antibiotics
4. Discovery of natural compounds that could slow blood vessel growth
5. Nanoscopic screening process to speed drug discovery
6. FSU researchers discovery leads to $1.5 million grant, potential new treatment of liver fibrosis
7. New $11 million center to speed production of new compounds for drug discovery
8. Discovery of giant roaming deep sea protist provides new perspective on animal evolution
9. New discovery may enhance MRI scans, lead to portable MRI machines
10. Kidney function discovery sheds light on genetic complexity of disease
11. Discovery of new gene associated with diabetes risk suggests link with body clock
Post Your Comments:
Related Image:
Worm discovery could help 1 billion people worldwide
(Date:5/3/2016)... , May 3, 2016  Neurotechnology, a provider ... MegaMatcher Automated Biometric Identification System (ABIS) , ... multi-biometric projects. MegaMatcher ABIS can process multiple complex ... any combination of fingerprint, face or iris biometrics. ... SDK and MegaMatcher Accelerator , which ...
(Date:4/19/2016)... UAE, April 20, 2016 The ... as a compact web-based "all-in-one" system solution for all ... fingerprint reader or the door interface with integration authorization ... access control systems. The minimal dimensions of the access ... into the building installations offer considerable freedom of design ...
(Date:3/31/2016)... RATON, Florida , March 31, 2016 ... LEGX ) ("LegacyXChange" or the "Company") ... for potential users of its soon to be launched ... video ( ) will also provide ... the use of DNA technology to an industry that ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... 27, 2016  Global demand for enzymes is ... 2020 to $7.2 billion.  This market includes enzymes ... products, biofuel production, animal feed, and other markets) ... biocatalysts). Food and beverages will remain the largest ... consumption of products containing enzymes in developing regions.  ...
(Date:6/27/2016)... ... June 27, 2016 , ... Cancer ... what they believe could be a new and helpful biomarker for malignant pleural ... Click here to read it now. , Biomarkers are components in the ...
(Date:6/27/2016)... , ... June 27, 2016 , ... ... for Amgen, will join the faculty of the University of North Carolina ... professor of strategy and entrepreneurship at UNC Kenan-Flagler, with a focus on the ...
(Date:6/24/2016)... on a range of subjects including policies, debt and investment ... Speaking at a lecture to the Canadian Economics ... the country,s inflation target, which is set by both the ... "In certain areas there needs to be frequent ... not sit down and address strategy together?" He ...
Breaking Biology Technology: