| Title: | The production of excretory-secretory molecules from Heligmosomoides polygyrus bakeri fourth stage larvae varies between mixed and single sex cultures |
| Author(s): | Maruszewska-Cheruiyot M; Szewczak L; Krawczak-Wojcik K; Glaczynska M; Donskow-Lysoniewska K; |
| Address: | "Laboratory of Parasitology, General Karol Kaczkowski Military Institute of Hygiene and Epidemiology, Warsaw, Poland. marta.maruszewska@wihe.pl. Laboratory of Parasitology, General Karol Kaczkowski Military Institute of Hygiene and Epidemiology, Warsaw, Poland" |
| DOI: | 10.1186/s13071-021-04613-9 |
| ISSN/ISBN: | 1756-3305 (Electronic) 1756-3305 (Linking) |
| Abstract: | "BACKGROUND: Excretory-secretory (ES) products are crucial in maintaining helminths in the host. Consequently, the proteins of ES are potential vaccine molecules and potential therapeutic agents for autoimmune diseases. Heligmosomoides polygyrus bakeri, a gastrointestinal parasite of mice, is a model of hookworm infection in humans. ES produced by both sexes of H. polygyrus bakeri L4 stage cultured separately shows different immunomodulatory properties than ES obtained when both sexes are cultured together. Accordingly, the objective of this study was to identify and compare the excretory-secretory molecules from single-sex and mixed cultures. METHODS: The composition of ES of male and female L4 stage nematodes in the presence (cultured together) or absence (cultured alone) of the opposite sex was examined. Proteins were identified using mass spectrometry. The functions of identified proteins were explored with Blast2GO. RESULTS: A total of 258 proteins derived from mixed larval culture in the presence of sex pheromones were identified, 160 proteins from pure female cultures and 172 from pure male cultures. Exposure of nematodes to the sex pheromones results in abundant production of proteins with immunomodulatory properties such as Val proteins, acetylcholinesterases, TGF-beta mimic 9 and HpARI. Proteins found only in ES from mixed larval cultures were TGF-beta mimics 6 and 7 as well as galectin. CONCLUSIONS: The presence of the opposite sex strongly influences the composition of ES products, probably by chemical (pheromone) communication between individuals. However, examination of the composition of ES from various conditions gives an opportunity for searching for new potentially therapeutic compounds and anthelminthics as well as components of vaccines. Manipulation of the nematode environment might be important for the studies on the immunomodulatory potential of nematodes" |
| Keywords: | "Animals Computational Biology Female Helminth Proteins/*analysis/*metabolism Larva/*physiology Male Mass Spectrometry Mice Mice, Inbred BALB C Nematospiroides dubius/growth & development/*physiology Specific Pathogen-Free Organisms Excretory-secretory pro;" |
| Notes: | "MedlineMaruszewska-Cheruiyot, Marta Szewczak, Ludmila Krawczak-Wojcik, Katarzyna Glaczynska, Magdalena Donskow-Lysoniewska, Katarzyna eng TEAM TECH/2017-4/22/Fundacja na rzecz Nauki Polskiej/ England 2021/02/10 Parasit Vectors. 2021 Feb 8; 14(1):106. doi: 10.1186/s13071-021-04613-9" |
