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UK funding (£445,546): Critical early events at the mucosal/worm interface following infection fo sheep with the abomasal nematode Teladorsagia circumcincta Ukri1 Aug 2007 UK Research and Innovation, United Kingdom
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Critical early events at the mucosal/worm interface following infection fo sheep with the abomasal nematode Teladorsagia circumcincta
| Abstract | SUMMARY Parasitic gastroenteritis (PGE), caused by trichostrongylid nematodes, is the most commonly diagnosed systemic disease of sheep in the U.K. The principal causative nematode (worm) is the abomasal parasite Teladorsagia circumcincta. From a production perspective, the syndrome causes impaired food utilisation, poor growth rates as well as poor carcass and fleece quality, in short, economic loses for the producer which compromise economic viability. Control, dependent on the use of anthelmintics, is failing due to the rapid emergence of drug resistance in the target nematodes. Vaccination is a feasible alternative but development is hampered by a lack of knowledge of the host-parasite interaction to incoming larvae, a prime effector of immunity in sheep. As this response develops, it is thought to induce arrested larval development, a factor which makes a major contribution to disease in the weaned young lamb. Here we will seek to define the molecular interactions between the host site of infection (the true stomach or abomasum) and the incoming larvae, the purpose being to identify the host mechanisms required to expel the worms and the worm proteins stimulating these or being targeted by them. We will define host gene expression in the abomasal surface layer in response to incoming larvae and, uniquely, parallel this analysis with the equivalent in the larvae. The purpose is to correlate key early host responses to the parasite with developmental changes in parasite gene expression, some of which are likely to be induced by the host and effect a parasite survival strategy in the face of developing anti-parasite immunity in the host. This work will allow us to identify potential vaccine candidates and provide basic information required to optimise vaccine delivery bringing control by vaccination a step closer. |
| Category | Research Grant |
| Reference | BB/E01867X/1 |
| Status | Closed |
| Funded period start | 01/08/2007 |
| Funded period end | 31/10/2010 |
| Funded value | £445,546.00 |
| Source | https://gtr.ukri.org/projects?ref=BB%2FE01867X%2F1 |
Participating Organisations
| University of Edinburgh |
The filing refers to a past date, and does not necessarily reflect the current state. The current state is available on the following page: University OF Edinburgh CHARITY, Edinburgh.
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