ArticleThe Journal of infectious diseases2021
Orally Administered Bacillus Spores Expressing an Extracellular Vesicle-Derived Tetraspanin Protect Hamsters Against Challenge Infection With Carcinogenic Human Liver Fluke.
Article in The Journal of infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
14 citing papers in PubMed, 19 citations in OpenAlex.
- Gene Editing of a Carcinogenic Liver Fluke Tetraspanin Impairs Parasite Surface Biogenesis and Extracellular Vesicle Uptake by Human Host Cells.The Journal of infectious diseases · 2026Article
- Clonorchis sinensis and cholangiocarcinoma: molecular mechanisms and biomarker advances.Parasite (Paris, France) · 2026Review
- Bacterial and gut microbiota-derived extracellular vesicles as emerging sources of cancer biomarkers: molecular mechanisms, diagnostic approaches, and therapeutic applications.Frontiers in cellular and infection microbiology · 2026Review
- Review
- Development of an efficacious oral peptide vaccine against infection with the carcinogenic liver fluke Opisthorchis viverrini.Vaccine · 2025Article
- Mechanistic insights into liver-fluke-induced bile-duct cancer.Trends in parasitology · 2024Review
- Molecular characterization and B-cell epitope analysis of the TSP11 gene inParasitology · 2024Article
- Clonorchiasis and opisthorchiasis: epidemiology, transmission, clinical features, morbidity, diagnosis, treatment, and control.Clinical microbiology reviews · 2024Review
- Tetraspanins from the liver fluke Opisthorchis viverrini stimulate cholangiocyte migration and inflammatory cytokine production.Folia parasitologica · 2023Article
- Tetraspanins frombioRxiv : the preprint server for biology · 2023Article
- Knockout of liver fluke granulin, Ov-grn-1, impedes malignant transformation during chronic infection with Opisthorchis viverrini.PLoS pathogens · 2022Article
- Silencing ofFrontiers in cellular and infection microbiology · 2022Article
- Cholangiocarcinoma.Nature reviews. Disease primers · 2021Review
- Monoclonal Antibodies Targeting anVaccines · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
Abstract
backgroundThe human liver fluke Opisthorchis viverrini is a food-borne trematode that causes hepatobiliary disease in humans throughout Southeast Asia. People become infected by consuming raw or undercooked fish containing metacercariae. Development of a vaccine to prevent or minimize pathology would decrease the risk of severe morbidity, including the development of bile duct cancer.
methodsWe produced an oral vaccine based on recombinant Bacillus subtilis spores expressing the large extracellular loop (LEL) of O. viverrini tetraspanin-2 (Ov-TSP-2), a protein that is abundant on the surface of O. viverrini secreted extracellular vesicles (EVs). Recombinant spores expressing Ov-TSP-2-LEL were orally administered to hamsters prior to challenge infection with O. viverrini metacercariae.
resultsVaccinated hamsters generated serum IgG as well as bile IgG and IgA responses to Ov-TSP-2-LEL, and serum IgG from vaccinated hamsters blocked the uptake of fluke EVs by a human bile duct epithelial cell line. Vaccinated hamsters had 56% reductions in both adult flukes and fecal eggs compared to the control group.
conclusionsThese findings indicate that oral vaccination of hamsters with recombinant B. subtilis spores expressing Ov-TSP-2-LEL is efficacious at reducing infection intensity and could form the basis of a vaccine for control of carcinogenic liver fluke infection in humans.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.