ArticleThe Journal of investigative dermatology2018
Phlebotomus papatasi Yellow-Related and Apyrase Salivary Proteins Are Candidates for Vaccination against Human Cutaneous Leishmaniasis.
Article in The Journal of investigative dermatology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 16 citations in OpenAlex.
- Evaluating the effect of immunization with DNA encoding Phlebotomus sergenti apyrase protein (PsSP42) against Leishmania tropica infection in BALB/c mouse model.Parasites & vectors · 2026Article
- Sand fly gut microbiota in Leishmania transmission: roles, interactions, and paratransgenic prospects.Archives of microbiology · 2025Review
- Molecular identification of Phlebotomus kandelakii apyrase and assessment of the immunogenicity of its recombinant protein in BALB/c mice.Scientific reports · 2023Article
- An overview of the sand fly salivary proteins in vaccine development against leishmaniases.Iranian journal of microbiology · 2022Review
- Some Good and Some Bad: Sand Fly Salivary Proteins in the Control of Leishmaniasis and in Autoimmunity.Frontiers in cellular and infection microbiology · 2022Review
- RNA-sequencing of the Nyssomyia neivai sialome: a sand fly-vector from a Brazilian endemic area for tegumentary leishmaniasis and pemphigus foliaceus.Scientific reports · 2020Article
- Phlebotomus papatasi sand fly predicted salivary protein diversity and immune response potential based on in silico prediction in Egypt and Jordan populations.PLoS neglected tropical diseases · 2020Article
- Article
- Immunoinformatics Evaluation of a Fusion Protein Composed ofIranian journal of parasitologyArticle
Corrections and comments
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Authors and funding
12 authors at 3 institutions in 2 countries.
Funding
Abstract
Nowadays, there is no available vaccine for human leishmaniasis. Animal experiments demonstrate that pre-exposure to sand fly saliva confers protection against leishmaniasis. Our preceding work in humans indicates that Phlebotomus papatasi saliva induces the production of IL-10 by CD8+ T lymphocytes. The neutralization of IL-10 enhanced the activation of a T-cell CD4+ population-producing IFN-γ. Herein, we used a biochemical and functional genomics approach to identify the sand fly salivary components that are responsible for the activation of the T helper type 1 immune response in humans, therefore constituting potential vaccine candidates against leishmaniasis. Fractionated P. papatasi salivary extracts were first tested on T lymphocytes of immune donors. We confirmed that the CD4+ lymphocytes proliferate and produce IFN-γ in response to stimulation with the proteins of molecular weight >30 kDa. Peripheral blood mononuclear cells from immune donors were transfected with plasmids coding for the most abundant proteins from the P. papatasi salivary gland cDNA library. Our result showed that the "yellow related proteins," PPTSP42 and PPTSP44, and "apyrase," PPTSP36, are the proteins responsible for the aforementioned cellular immune response and IFN-γ production. Strikingly, PPTSP44 triggered the highest level of lymphocyte proliferation and IFN-γ production. Multiplex cytokine analysis confirmed the T helper type 1-polarized response induced by these proteins. Importantly, recombinant PPTSP44 validated the results observed with the DNA plasmid, further supporting that PPTSP44 constitutes a promising vaccine candidate against human leishmaniasis.
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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.