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Trichinella spiralis extracellular vesicles induce anti-inflammatory and regulatory immune responses in vitro.
Int J Parasitol
January 2025
The helminth Trichinella spiralis, through its excretory-secretory (ES L1) products, induces immune regulatory mechanisms that modulate the host's immune response not only to itself, but also to bystander antigens, foreign or self in origin, which can result in the alleviation of inflammatory diseases. Under the influence of ES L1, dendritic cells (DCs) acquire a tolerogenic phenotype and the capacity to induce Th2 and regulatory responses. Since ES L1 products represent a complex mixture of proteins and extracellular vesicles (TsEVs) the aim of this study was to investigate the impact of TsEVs, isolated from ES L1 products, on phenotypic and functional characteristics of DCs and to elucidate whether TsEVs could reproduce the immunomodulatory effects of the complete ES L1 product.
View Article and Find Full Text PDFNb-FAR-1: A key developmental protein affects lipid droplet accumulation and cuticle formation in Nippostrongylus brasiliensis.
PLoS Negl Trop Dis
January 2025
State Key Laboratory for Animal Disease Control and Prevention, Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China.
Fatty acid and retinol binding proteins (FARs) are lipid-binding protein that may be associated with modulating nematode pathogenicity to their hosts. However, the functional mechanism of FARs remains elusive. We attempt to study the function of a certain FAR that may be important in the development of Nippostrongylus brasiliensis.
View Article and Find Full Text PDFN-terminomics profiling of host proteins targeted by excretory-secretory proteases of the nematode Angiostrongylus vasorum identifies points of interaction with canine coagulation and complement cascade.
PLoS One
January 2025
Institute of Parasitology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
The cardiopulmonary nematode Angiostrongylus vasorum can cause severe disease in dogs, including coagulopathies manifesting with bleeding. We analysed A. vasorum excretory/secretory protein (ESP)-treated dog plasma and serum by N-terminome analysis using Terminal Amine Isotopic Labelling of Substrates (TAILS) to identify cleaved host substrates.
View Article and Find Full Text PDFExposure to airborne particulate matter and undernutrition in young rats: An in-depth histopathological and biochemical study on lung and excretory organs.
Food Chem Toxicol
January 2025
Laboratorio de Bio-Toxicología Ambiental, Instituto de Tecnologías Emergentes y Ciencias Aplicadas. Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín - CONICET, San Martín, Buenos Aires, Argentina; Cátedra de Anatomía Patológica. Facultad de Odontología, Universidad de Buenos Aires, Buenos Aires, Argentina.
Environmental stressors, such as air particulate matter (PM) and nutrient deficiencies, can significantly impact crucial organs involved in detoxifying xenobiotics, including lungs, liver, and kidneys, especially in vulnerable populations like children. This study investigated the effect of 4-week exposure to Residual Oil Fly Ash (ROFA) on these organs in young rats under growth-restricted nutrition (NGR). We assessed histological, histomorphometric and biochemical parameters.
View Article and Find Full Text PDFIn vitro culture and confocal microscopy study of Maritrema gratiosum Nicoll, 1907 (Digenea): From metacercaria to ovigerous adult.
Parasitol Res
January 2025
Institute of Aquaculture, University of Stirling, 5F.-2, No. 196, Sec. 2, Xinglong Rd., Wenshan Dist., Taipei City, 116096, Taiwan (R.O.C.).
This study set out to characterise the in vitro development, including musculature, of the microphallid parasite of the barnacle Semibalanus balanoides (Linnaeus, 1767), Maritrema gratiosum Nicoll, 1907 collected in Scotland. An in vitro culture model was developed to obtain ovigerous adults of M. gratiosum and their morphology was observed.
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