ArticleParasites & vectors2020
Molecular characterization of a Trichinella spiralis elastase-1 and its potential as a diagnostic antigen for trichinellosis.
Article in Parasites & vectors, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 74 citations in OpenAlex.
- Epidemiology, frost resistance, and emerging species-specific diagnostics for Trichinella nativa: Current evidence and future priorities.Veterinary world · 2026Review
- Trichinella spiralis excretory-secretory proteins induced autophagy via activating AMPK/mTOR pathway and protected gut epithelial barrier.PLoS neglected tropical diseases · 2025Article
- Trichinella spiralis serine protease mediates larval invasion of gut epithelium via binding to CK8 and activating RhoA/ROCK1 pathway.PLoS neglected tropical diseases · 2025Article
- Comparative immunodiagnostic evaluation of recombinant serine proteases fromVeterinary world · 2025Article
- Assessing diagnostic, vaccine and therapeutic potential of selectedFood and waterborne parasitology · 2025Review
- Vaccination of mice with Trichinella spiralis C-type lectin elicited the protective immunity and enhanced gut epithelial barrier function.PLoS neglected tropical diseases · 2025Article
- Trichinella spiralis excretory/secretory proteins mediated larval invasion via inducing gut epithelial apoptosis and barrier disruption.PLoS neglected tropical diseases · 2025Article
- Biological characteristics of a new long-chain fatty acid transport protein 1 from Trichinella spiralis and its participation in lipid metabolism, larval moulting, and development.Veterinary research · 2024Article
- Application of a recombinant novel trypsin from Trichinella spiralis for serodiagnosis of trichinellosis.Parasites & vectors · 2024Article
- A novel trypsin of Trichinella spiralis mediates larval invasion of gut epithelium via binding to PAR2 and activating ERK1/2 pathway.PLoS neglected tropical diseases · 2024Article
- Trichinella spiralis galectin binding to toll-like receptor 4 induces intestinal inflammation and mediates larval invasion of gut mucosa.Veterinary research · 2023Article
- Binding of Trichinella spiralis C-type lectin with syndecan-1 on intestinal epithelial cells mediates larval invasion of intestinal epithelium.Veterinary research · 2023Article
- Trichinella spiralis dipeptidyl peptidase 1 suppressed macrophage cytotoxicity by promoting M2 polarization via the STAT6/PPARγ pathway.Veterinary research · 2023Article
- Molecular characterization of a novel serine proteinase from Trichinella spiralis and its participation in larval invasion of gut epithelium.PLoS neglected tropical diseases · 2023Article
- Inhibition ofVaccines · 2023Article
- Untargeted serum metabolomics analysis of Trichinella spiralis-infected mouse.PLoS neglected tropical diseases · 2023Article
- Large-scale proteomic analysis ofFrontiers in parasitology · 2023Article
- Oral immunization of mice with recombinant Lactobacillus plantarum expressing a Trichinella spiralis galectin induces an immune protection against larval challenge.Parasites & vectors · 2022Article
- A novel C-type lectin from Trichinella spiralis mediates larval invasion of host intestinal epithelial cells.Veterinary research · 2022Article
- Characterization of a novel pyruvate kinase from Trichinella spiralis and its participation in sugar metabolism, larval molting and development.PLoS neglected tropical diseases · 2022Article
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10 authors at 1 institution in 1 country.
Funding
Abstract
backgroundTrichinella spiralis muscle larval (ML) excretion/secretion (ES) antigen is the most widely used diagnostic antigen of trichinellosis, but preparation of ES antigen requires collecting worms from infected animals, and detection of specific IgG against ML ES antigen may result in a false negative at the early stage of infection. The aim of the study was to characterize T. spiralis elastase-1 (TsEla) and to evaluate its potential as diagnostic antigen for trichinellosis.
methodsThe complete cDNA sequences of the TsEla gene were cloned and expressed, and recombinant (rTsEla) was purified. TsEla transcription and expression in different T. spiralis life-cycle stages was investigated by qPCR and western blotting, and its location in the nematodes was evaluated using an immunofluorescence assay (IFA). The antigenicity of rTsEla was investigated by western blotting analysis and ELISA. Anti-Trichinella IgG, IgM and IgE of experimentally infected mice and specific IgG antibodies of trichinellosis patients were assayed by rTsEla-ELISA and ES-ELISA.
resultsThe results of the qPCR and western blotting showed that TsEla was expressed in various T. spiralis life stages. Natural TsEla was detected in the soluble proteins and ES proteins of different life stages. IFA revealed that TsEla was identified in the whole nematodes of various stages, especially in the cuticle, stichosome and genital primordium of the parasite. Serum anti-Trichinella IgM, IgG and IgE in infected mice was first detected by rTsEla-ELISA at 6, 10 and 12 days post-infection (dpi), and reached 100% at 8, 14 and 14 dpi, respectively. When rTsEla-ELISA and ES-ELISA were used to detect anti-Trichinella IgG in sera of trichinellosis patients, the sensitivity was 97.37% (37/38) and 89.74% (34/38) (P > 0.05), and the specificity was 99.10% (220/222) and 98.20% (218/222), respectively (P > 0.05). The rTsEla cross-reacted with only one serum sample out of 20 samples from paragonimiasis patients and 7 samples from clonorchiasis patients.
conclusionsrTsEla is valuable to early diagnosis of trichinellosis and could be an alternative diagnostic antigen to the ML ES antigens.
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