Bibliographic Details
| Title: |
A novel, sequencing-free strategy for the functional characterization of Taenia solium proteomic fingerprint. |
| Authors: |
Gomez-Fuentes, Sandra, Hernández-de la Fuente, Sarah, Morales-Ruiz, Valeria, López-Recinos, Dina, Guevara-Salinas, Adrián, Parada-Colin, María Cristina, Espitia, Clara, Ochoa-Leyva, Adrián, Sánchez, Filiberto, Villalobos, Nelly, Arce-Sillas, Asiel, Hernández, Marisela, Mora, Silvia Ivonne, Fragoso, Gladis, Sciutto, Edda, Adalid-Peralta, Laura |
| Source: |
PLoS Neglected Tropical Diseases; 2/18/2021, Vol. 15 Issue 2, p1-16, 16p |
| Subject Terms: |
TAENIA solium, NEUROCYSTICERCOSIS, PEPTIDE mass fingerprinting, RURAL health, ACTINOBACILLUS pleuropneumoniae, CYSTICERCOSIS, HELMINTHS |
| Geographic Terms: |
MEXICO, GUERRERO (Mexico : State) |
| Abstract: |
The flatworm Taenia solium causes human and pig cysticercosis. When cysticerci are established in the human central nervous system, they cause neurocysticercosis, a potentially fatal disease. Neurocysticercosis is a persisting public health problem in rural regions of Mexico and other developing countries of Latin America, Asia, and Africa, where the infection is endemic. The great variability observed in the phenotypic and genotypic traits of cysticerci result in a great heterogeneity in the patterns of molecules secreted by them within their host. This work is aimed to identify and characterize cysticercal secretion proteins of T. solium cysticerci obtained from 5 naturally infected pigs from Guerrero, Mexico, using 2D-PAGE proteomic analysis. The isoelectric point (IP) and molecular weight (MW) of the spots were identified using the software ImageMaster 2D Platinum v.7.0. Since most secreted proteins are impossible to identify by mass spectrometry (MS) due to their low concentration in the sample, a novel strategy to predict their sequence was applied. In total, 108 conserved and 186 differential proteins were identified in five cultured cysts. Interestingly, we predicted the sequence of 14 proteins that were common in four out of five cysticercus cultures, which could be used to design vaccines or diagnostic methods for neurocysticercosis. A functional characterization of all sequences was performed using the algorithms SecretomeP, SignalP, and BlastKOALA. We found a possible link between signal transduction pathways in parasite cells and human cancer due to deregulation in signal transduction pathways. Bioinformatics analysis also demonstrated that the parasite release proteins by an exosome-like mechanism, which could be of biological interest. Author summary: Human neurocysticercosis is a major neglected tropical disease caused by Taenia solium. As part of their natural metabolism, cysticerci release molecules into their microenvironment within the host. Secreted molecules could be useful in the design of vaccine candidates or diagnostic methods, or as therapeutic targets. Unfortunately, most secreted proteins cannot be identified by mass spectrometry sequencing due to their low concentration in the sample. In this study, we introduce a novel strategy to predict the sequence of T. solium secreted proteins using 2D-PAGE proteomic analysis and the T. solium genome. This approach allowed us to identify proteins with potential applications in the diagnosis and/or prevention of neurocysticercosis. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |
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