To accelerate the development of novel vaccines for schistosomiasis, we set out to develop a human model for Schistosoma mansoni infection in healthy volunteers. During natural infections, female schistosomes produce eggs that give rise to morbidity. Therefore, we produced single-sex, male Schistosoma mansoni cercariae for human infection without egg production and associated pathology. Cercariae were produced in their intermediate snail hosts in accordance with the principles of good manufacturing practice (GMP). The application of GMP principles to an unconventional production process is a showcase for the controlled production of complex live challenge material in the European Union or under Food and Drug Administration guidance.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/infdis/jiy275 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Evaluating the Immunoprotective and Diagnostic Potential of Schistosoma mansoni Epitopes from Sm050890 and Sm141290 Proteins Identified Through Reverse Vaccinology.
Acta Parasitol
January 2025
Federal University of São João del-Rei, Divinópolis, MG, Brazil.
Purpose: Schistosomiasis remains a parasitic disease affecting millions of people worldwide, requiring interventions like vaccination. In previous work, our group used reverse vaccinology to identify two epitopes from the Schistosoma mansoni proteins, Sm050890 (44-58) and Sm141290 (225-239). This study evaluated the immune response profile and protection induced by peptides, as a mixture of immunogens, in murine vaccination trials.
View Article and Find Full Text PDFDevelopment and Application of an In Vitro Drug Screening Assay for Schistosomula Using YOLOv5.
Biomedicines
December 2024
Infectious and Tropical Diseases Research Group (e-INTRO), Biomedical Research Institute of Salamanca, Research Centre for Tropical Diseases at the University of Salamanca (IBSAL-CIETUS), Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain.
Background: Schistosomiasis impacts over 230 million people globally, with 251.4 million needing treatment. The disease causes intestinal and urinary symptoms, such as hepatic fibrosis, hepatomegaly, splenomegaly, and bladder calcifications.
View Article and Find Full Text PDFGenomic basis of schistosome resistance in a molluscan vector of human schistosomiasis.
iScience
January 2025
Program in Public Health, College of Health Sciences, University of California, Irvine, Irvine, CA 92697, USA.
Freshwater snails are obligate intermediate hosts for the transmission of schistosomiasis, one of the world's most devastating parasitic diseases. To decipher the mechanisms underlying snail resistance to schistosomes, recombinant inbred lines (RILs) were developed from two well-defined homozygous lines (iM line and iBS90) of the snail . Whole-genome sequencing (WGS) was used to scan the genomes of 46 individual RIL snails, representing 46 RILs, half of which were resistant or susceptible to .
View Article and Find Full Text PDFAnthelmintic Potential of Conjugated Long-Chain Fatty Acids Isolated from the Bioluminescent Mushroom .
J Nat Prod
January 2025
Department of Chemistry, Federal University of Piaui, Campus Ministro Petrônio Portela, Teresina, PI 64049-550, Brazil.
With praziquantel being the sole available drug for schistosomiasis, identifying novel anthelmintic agents is imperative. A chemical investigation of the fruiting body of the bioluminescent mushroom Berk. resulted in the isolation of new conjugated long-chain fatty acids (8,10,12,13)-12,13-dihydroxy-7-oxo-octadeca-8,10-dienoic acid () and (7,8,9,11)-7,8-dihydroxy-13-oxo-octadeca-9,11-dienoic acid () and three previously described compounds, (7,8,9)-7,8-dihydroxyoctadec-9-enoic acid (), (2)-dec-2-ene-1,10-dioic acid (), and a ketolactone marasmeno-1,15-dione ().
View Article and Find Full Text PDFMolecular xenomonitoring of Schistosoma mansoni infections in Biomphalaria choanomphala at Lake Victoria, East Africa: Assessing roles of abiotic and biotic factors.
PLoS Negl Trop Dis
January 2025
School of Life Sciences, University of Nottingham, Nottingham, United Kingdom.
Lake Victoria is a well-known hot spot for intestinal schistosomiasis, caused by infection with the trematode Schistosoma mansoni. The snail intermediate hosts of this parasite are Biomphalaria snails, with Biomphalaria choanomphala being the predominant intermediate host within Lake Victoria. The prevalence of S.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!