期刊
INTERNATIONAL JOURNAL FOR PARASITOLOGY
卷 38, 期 3-4, 页码 467-475出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijpara.2007.08.015
关键词
intelectin; abomasum; sheep; Teladorsagia circumcincta; sMCP-1; OvGal-14; IL4
类别
资金
- Wellcome Trust [060312] Funding Source: Medline
A novel intelectin molecule designated sheep intelectin 2 (sITLN2) was detected in sheep abomasal mucosa. The full sequence shared, 76-83% homology with other mammalian intelectins. Intelectins are mucus-associated proteins that have been shown to be up-regulated in gastrointestinal nematode infections in rodents and in human asthma. Expression of sheep abomasal ITLN2 mRNA was significantly up-regulated on day 10 post-challenge of worm-free sheep with Teladorsagia circumcincta and at day 2 in previously infected, immune sheep. Increased expression of ITLN protein following challenge was confirmed by Western blot and was immunolocalised to the mucous neck cells of the abomasal mucosa. Infection with T circunicincta was also associated with increased levels of abomasal transcripts encoding sheep mast cell protease-1, ovine galectin-14 and 114, which collectively suggested a Th2 type response. Intelectin may play an important role in the mucosal response to gastrointestinal nematode infections in ruminants. (c) 2007 Australian Society for Parasitology Inc. Published by Elsevier Ltd. All rights reserved.
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