ArticlePLoS neglected tropical diseases2025
Heterologous prime-boost immunization based on a human adenovirus 5 vectored containing Trichinella spiralis Cystatin-like protein elicits protective mucosal immunity in mice.
Article in PLoS neglected tropical diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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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1 citing paper in PubMed.
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Authors and funding
10 authors.
Funding
Abstract
Trichinellosis is a globally distributed zoonotic parasitic disease. The Trichinella infective larvae migrate through the intestine after ingestion and settle in muscles, thus intestinal mucosal immunity plays a vital role against early infection with Trichinella. In this study, a recombinant adenovirus vector expressing the cysteine protease inhibitor of Trichinella spiralis (rAd5TsCLP) was constructed and combined with the recombinant protein rTsCLP in a heterologous prime-boost regimen. The regimen elicits strong, specific, and neutralizing antibodies in BALB/c mice, significantly enhancing cellular immunity through Th1 (IFN-γ, TNF-α) and Th2 (IL-13, IL-4) cytokine production in the peripheral blood, spleen, and cervical lymph nodes, driven by the activation of CD4+ and CD8+ T-cells. Notably, immunization with rAd5TsCLP:rTsCLP elevated mucosal secretory IgA (sIgA) levels, boosted histamine concentrations, and increased goblet cell numbers in the intestinal epithelium. Vaccinated mice showed a significant 61.17% reduction in adult worms and a 58.22% reduction in muscle larvae after the T. spiralis challenge. The adenovirus vector-delivered TsCLP amplifies local mucosal immunity, eliciting a Th1/Th2 mixed immune response that facilitates the expulsion of T. spiralis. Our study provides a feasible and promising approach for Trichinella vaccines, further highlighting the potential of an adenovirus vector for anti-helminth vaccine development.
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