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Immunol."],"abstract":"<jats:p>Nematodes are one of the largest groups of animals on the planet. Many of them are major pathogens of humans, animals and plants, and cause destructive diseases and socioeconomic losses worldwide. Despite their adverse impacts on human health and agriculture, nematodes can be challenging to control, because anthelmintic treatments do not prevent re-infection, and excessive treatment has led to widespread drug resistance in nematode populations. Indeed, many nematode species of livestock animals have become resistant to almost all classes of anthelmintics used. Most efforts to develop commercial anti-nematode vaccines (native or recombinant) for use in animals and humans have not succeeded, although one effective (dead) vaccine (Barbervax) has been developed to protect animals against one of the most pathogenic parasites of livestock animals \u2013<jats:italic>Haemonchus contortus<\/jats:italic>(the barber\u2019s pole worm). This vaccine contains native molecules, called H11 and H-Gal-GP, derived from the intestine of this blood-feeding worm. In its native form, H11 alone consistently induces high levels (75-95%) of immunoprotection in animals against disease (haemonchosis), but recombinant forms thereof do not. Here, to test the hypothesis that post-translational modification (glycosylation) of H11 plays a crucial role in achieving such high immunoprotection, we explored the N-glycoproteome and N-glycome of H11 using the high-resolution mass spectrometry and assessed the roles of N-glycosylation in protective immunity against<jats:italic>H. contortus<\/jats:italic>. Our results showed conclusively that N-glycan moieties on H11 are the dominant immunogens, which induce high IgG serum antibody levels in immunised animals, and that anti-H11 IgG antibodies can confer specific, passive immunity in na\u00efve animals. This work provides the first detailed account of the relevance and role of protein glycosylation in protective immunity against a parasitic nematode, with important implications for the design of vaccines against metazoan parasites.<\/jats:p>","DOI":"10.3389\/fimmu.2022.1034820","type":"journal-article","created":{"date-parts":[[2022,10,25]],"date-time":"2022-10-25T04:35:54Z","timestamp":1666672554000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":20,"title":["H11-induced immunoprotection is predominantly linked to N-glycan moieties during Haemonchus contortus infection"],"prefix":"10.3389","volume":"13","author":[{"given":"Chunqun","family":"Wang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lu","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tianjiao","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenjie","family":"Peng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ratnesh Kumar","family":"Srivastav","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xing-Quan","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nishith","family":"Gupta","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robin B.","family":"Gasser","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min","family":"Hu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2022,10,25]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.11646\/zootaxa.5114.1.1","article-title":"Phylum nematoda: A classification, catalogue and index of valid genera, with a census of valid species","volume":"5114","author":"Hodda","year":"2022","journal-title":"Zootaxa"},{"key":"B2","doi-asserted-by":"publisher","DOI":"10.1016\/s0140-6736(09)60233-6","article-title":"Rescuing the bottom billion through control of neglected tropical diseases","volume":"373","author":"Hotez","year":"2009","journal-title":"Lancet"},{"key":"B3","doi-asserted-by":"publisher","DOI":"10.1016\/s0140-6736(17)31930-x","article-title":"Soil-transmitted helminth infections","volume":"391","author":"Jourdan","year":"2018","journal-title":"Lancet"},{"key":"B4","doi-asserted-by":"publisher","first-page":"20220057","DOI":"10.1098\/rsbl.2022.0057","article-title":"Understanding the role of wild ruminants in anthelmintic resistance in livestock","volume":"18","author":"Brown","year":"2022","journal-title":"Biol Lett"},{"key":"B5","doi-asserted-by":"publisher","DOI":"10.1016\/j.vetpar.2011.11.048","article-title":"An inconvenient truth: global worming and anthelmintic resistance","volume":"186","author":"Kaplan","year":"2012","journal-title":"Vet Parasitol"},{"key":"B6","doi-asserted-by":"publisher","first-page":"63","DOI":"10.1017\/s0031182006001818","article-title":"Vaccines against blood-feeding nematodes of humans and livestock","volume":"133","author":"Bethony","year":"2006","journal-title":"Parasitology"},{"key":"B7","doi-asserted-by":"publisher","DOI":"10.1016\/j.vaccine.2012.11.034","article-title":"The human hookworm vaccine","volume":"31","author":"Hotez","year":"2013","journal-title":"Vaccine"},{"key":"B8","doi-asserted-by":"publisher","DOI":"10.1016\/0020-7519(93)90150-w","article-title":"Purification and evaluation of the integral membrane protein H11 as a protective antigen against","volume":"23","author":"Smith","year":"1993","journal-title":"Haemonchus contortus. 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