ArticleScientific reports2019
Characterization and immune regulation role of an immobilization antigen from Cryptocaryon irritans on groupers.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed, 28 citations in OpenAlex.
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- Development of a Tetrahymena thermophila-Based Vaccine Expressing Miamiensis avidus Ciliary Proteins to Combat Scuticociliatosis.Journal of fish diseases · 2025Article
- Protection of Grouper AgainstFrontiers in immunology · 2022Article
- Characterization and functional analysis of hybrid pearl gentian grouper (Fish and shellfish immunology reports · 2021Article
- Characterization of Simple Sequence Repeats (SSRs) in Ciliated Protists Inferred by Comparative Genomics.Microorganisms · 2020Article
- Infectivity and genes differentially expressed between young and aging theront cells of the marine fish parasite Cryptocaryon irritans.PloS one · 2020Article
Corrections and comments
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Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
Abstract
Immobilization antigens (i-antigens) are surface membrane proteins that are widely recognized to be the ideal candidates as vaccines antigens for immunization against Cryptocaryon irritans. In this study, we cloned a putative i-antigen gene from C. irritans, which was expressed in all three stages of the C. irritans life-cycle, and localized primarily to the cell surface. The recombinant GDCI3 i-antigen was expressed and purified using the free-living ciliate, Tetrahymena thermophila as an expression system. The purified recombinant protein was recognized by rabbit anti-C. irritans antiserum and was capable of eliciting immobilizing antibodies in rabbits and fish suggesting that the antigen itself was correctly folded. Following immunization and parasite challenge, groupers vaccinated with, recombinant GDCI3 i-antigen had a 25% cumulative percent survival rate compared to 8.3% for controls. Both non-specific and parasite-specific IgMs were generated in fish following immunization, with the levels of both increasing following challenge. Parasite-specific IgM in mucus could only be elicited after challenge of the GDCI3 i-antigen vaccinated groupers. To our knowledge, this is the first report using the Tetrahymena expression system to generate C. irritans i-antigens and investigate their use for fish vaccination.
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Registered trials
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