Publications by authors named "Gabriela Alvite"

Cystic Echinococcosis is a cosmopolitan zoonosis closely linked to poverty and ignorance. It affects both cattle and humans, causing significant losses to both human and animal health. To date, there is no effective way to combat this.

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Nuclear receptors (NRs) are ligand-modulated transcription factors that regulate various biological processes, such as metabolism, development and reproduction. Although NRs with two DNA-binding domains (2DBD) were identified in Schistosoma mansoni (Platyhelminth, Trematoda) more than fifteen years ago, these proteins have been poorly studied. 2DBD-NRs could become attractive therapeutic targets to combat parasitic diseases such as cystic echinococcosis since this type of protein is absent in vertebrate hosts.

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Article Synopsis
  • * Researchers created a 3D model of a specific nuclear receptor from a type of flatworm using advanced modeling techniques, revealing key structural features.
  • * Their findings show that certain fatty acids can bind to this receptor, which could inform the development of new medications to target these proteins, especially since they aren't found in vertebrates.
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Article Synopsis
  • - Nuclear receptors are proteins that activate gene expression and are categorized into seven subfamilies, with a newly discovered subfamily featuring two DNA-binding domains (2DBDs) found in the parasite Schistosoma mansoni.
  • - This research focuses on cloning and analyzing the Eg2DBDα receptor from the Echinococcus granulosus parasite, examining its gene structure and expression, as well as other related receptors found in parasite databases.
  • - The study also explores the evolutionary relationships between these unique 2DBD nuclear receptors in various cestodes, highlighting their potential role in drug development against parasitic infections.
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Two fatty acid binding proteins, EgFABP1 and EgFABP2, were isolated from the parasitic platyhelminth Echinococcus granulosus. These proteins bind fatty acids and have particular relevance in flatworms since de novo fatty acids synthesis is absent. Therefore platyhelminthes depend on the capture and intracellular distribution of host's lipids and fatty acid binding proteins could participate in lipid distribution.

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Two fatty acid binding proteins, MvFABPa and MvFABPb were identified in the parasite Mesocestoides vogae (Platyhelmithes, Cestoda). Fatty acid binding proteins are small intracellular proteins whose members exhibit great diversity. Proteins of this family have been identified in many organisms, of which Platyhelminthes are among the most primitive.

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Background: Growth and maintenance of hydatid cysts produced by Echinococcus granulosus have a high requirement for host lipids for biosynthetic processes, membrane building and possibly cellular and developmental signalling. This requires a high degree of lipid trafficking facilitated by lipid transporter proteins. Members of the fatty acid binding protein (FABP) family have been identified in Echinococcus granulosus, one of which, EgFABP1 is expressed at the tegumental level in the protoscoleces, but it has also been described in both hydatid cyst fluid and secretions of protoscoleces.

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TWO MAIN FAMILIES OF LIPID BINDING PROTEINS HAVE BEEN IDENTIFIED IN PARASITIC PLATYHELMINTHES: hydrophobic ligand binding proteins (HLBPs) and fatty acid binding proteins (FABPs). Members of the former family of proteins are specific to the Cestoda class, while FABPs are conserved across a wide range of animal species. Because Platyhelminthes are unable to synthesize their own lipids, these lipid-binding proteins are important molecules in these organisms.

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Article Synopsis
  • Tropomyosins are actin-binding proteins important for muscle contraction, with various isoforms arising from different genes and alternative splicing.
  • Researchers isolated tropomyosin isoforms in the flatworm Mesocestoides corti and explored related genes in other flatworms, finding conserved gene structures that produce both high molecular weight (HMW) and low molecular weight (LMW) isoforms.
  • HMW tropomyosins specifically mark muscle development in genital ducts and are absent in early genital primordia, indicating their role in muscle differentiation during development.
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Tropomyosins (Trps) constitute a family of actin filament-binding proteins found in all eukaryotic cells. In muscle cells, they play a central role in contraction by regulating calcium-sensitive interaction of actin and myosin. In non-muscle cells, tropomyosins regulate actin filament organization and dynamics.

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Dogs are the main source of human cystic echinococcosis. An oral vaccine would be an important contribution to control programs in endemic countries. We conducted two parallel experimental trials in Morocco and Tunisia of a new oral vaccine candidate against Echinococcus granulosus in 28 dogs.

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This work describes two new fatty acid binding proteins (FABPs) identified in the parasite platyhelminth Mesocestoides vogae (syn. corti). The corresponding polypeptide chains share 62% identical residues and overall 90% similarity according to CLUSTALX default conditions.

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We describe the 1.6 A crystal structure of the fatty-acid-binding protein EgFABP1 from the parasitic platyhelminth Echinococcus granulosus. E.

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