Vaccination with novel low-molecular weight proteins secreted from Trichinella spiralis inhibits establishment of infection
Article
Srey, M. T., Taccogna, A., Oksov, Y., Lustigman, S., Tai, P., Acord, J., Selkirk, M. E., Lamb, T. J. and Guiliano, D. 2020. Vaccination with novel low-molecular weight proteins secreted from Trichinella spiralis inhibits establishment of infection. PLoS Neglected Tropical Diseases. 14 (Art. e0008842). https://doi.org/10.1371/journal.pntd.0008842
Authors | Srey, M. T., Taccogna, A., Oksov, Y., Lustigman, S., Tai, P., Acord, J., Selkirk, M. E., Lamb, T. J. and Guiliano, D. |
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Abstract | Trichinella spiralis muscle stage larvae (mL1) produce excretory-secreted products (ESPs), a complex mixture of protein, which are believed to be important for establishing or maintaining an infection niche within skeletal muscle and the intestine. Studies of both whole ESPs and individual cloned proteins have shown that some ESPs are potent immunogens capable of eliciting protective immune responses. Here we describe two novel proteins, Secreted from Muscle stage Larvae SML-4 and SML-5 which are 15 kDa and 12 kDa respectively. The genes encoding these proteins are highly conserved within the Trichinellids, are constituents of mL1 ESP and localized in the parasite stichosome. While SML-5 is only expressed in mL1 and early stages of adult nematode development, SML-4 is a tyvosylated glycoprotein also produced by adult nematodes, indicating it may have a function in the enteral phase of the infection. Vaccination with these proteins resulted in an impaired establishment of adult stages and consequently a reduction in the burden of mL1 in BALB/c mice. This suggests that both proteins may be important for establishment of parasite infection of the intestine and are prophylactic vaccine candidates. |
Journal | PLoS Neglected Tropical Diseases |
Journal citation | 14 (Art. e0008842) |
ISSN | 1935-2735 |
Year | 2020 |
Publisher | Public Library of Science (PLoS) |
Publisher's version | License File Access Level Anyone |
Supplemental file | License File Access Level Anyone |
Digital Object Identifier (DOI) | https://doi.org/10.1371/journal.pntd.0008842 |
Publication dates | |
Online | 18 Nov 2020 |
Publication process dates | |
Accepted | 14 Sep 2020 |
Deposited | 24 Nov 2020 |
Funder | National Institutes of Health |
University of East London | |
Wellcome Trust | |
Copyright holder | © 2020 The Authors |
https://repository.uel.ac.uk/item/88v65
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