ArticleActa parasitologica2026
Estudo Abrangente do Resveratrol Associado à Sulfadiazina em Linfócitos Infectados com Toxoplasma gondii: Envolvimento da Sinalização Purinérgica na Resposta Imunológica.
Article in Acta parasitologica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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Corrections and comments
- Erratum issued
Authors and funding
12 authors.
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Abstract
Toxoplasma gondii is a highly successful intracellular pathogen. Its success is largely achieved by the parasite's ability to avoid the host immune response. During T. gondii infection lymphocytes play an active role in host defense and purinergic signaling has been shown to contribute to parasite control. Several studies have demonstrated the importance of ATP (adenosine triphosphate) signaling via purinergic receptor, as a component of the inflammatory response against T. gondii. Here, we hypothesized whether RSV, a natural polyphenol, could be involved in T. gondii control triggered by purinergic signaling, during acute infection in lymphocytes. Thus, the outcomes of this study were lymphocyte viability, modulation of ectonucleotidase activity, purinergic receptor expression and inflammatory mediators. T. gondii infection diminished lymphocytes viability 24h after RH-tachyzoites exposition. RSV treatment promote an increment of ATP, ADP hydrolysis by NTPDase (CD39) and adenosine deamination by ADA enzyme in infected lymphocytes. In addition, RSV upregulated P1 and P2 receptors in T. gondii-infected lymphocytes. There is an involvement of P2X
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