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Duval D, Poteaux P, Gourbal B, Rognon A, Augusto RDC. Fluorescent non transgenic schistosoma to decipher host-parasite phenotype compatibility. Front Immunol 2023; 14:1293009. [PMID: 38106408 PMCID: PMC10721968 DOI: 10.3389/fimmu.2023.1293009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/07/2023] [Indexed: 12/19/2023] Open
Abstract
Schistosomiasis is considered as a significant public health problem, imposing a deeper understanding of the intricate interplay between parasites and their hosts. Unfortunately, current invasive methodologies employed to study the compatibility and the parasite development impose limitations on exploring diverse strains under various environmental conditions, thereby impeding progress in the field. In this study, we demonstrate the usefulness for the trematode parasite Schistosma mansoni, leveranging a fluorescence-imaging-based approach that employs fluorescein 5-chloromethylfluorescein diacetate (CMFDA) and 5-chloromethylfluorescein diacetate (CMAC) as organism tracker for intramolluscan studies involving the host snail Biomphalaria glabrata. These probes represent key tools for qualitatively assessing snail infections with unmatched accuracy and precision. By monitoring the fluorescence of parasites within the snail vector, our method exposes an unprecedented glimpse into the host-parasite compatibility landscape. The simplicity and sensitivity of our approach render it an ideal choice for evolutionary studies, as it sheds light on the intricate mechanisms governing host-parasite interactions. Fluorescent probe-based methods play a pivotal role in characterizing factors influencing parasite development and phenotype of compatibility, paving the way for innovative, effective, and sustainable solutions to enhance our understanding host-parasite immunobiological interaction and compatibility.
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Affiliation(s)
- David Duval
- IHPE, Université de Perpignan Via Domitia, CNRS, Ifremer, Université de Montpellier, Perpignan, France
| | - Pierre Poteaux
- IHPE, Université de Perpignan Via Domitia, CNRS, Ifremer, Université de Montpellier, Perpignan, France
| | - Benjamin Gourbal
- IHPE, Université de Perpignan Via Domitia, CNRS, Ifremer, Université de Montpellier, Perpignan, France
| | - Anne Rognon
- IHPE, Université de Perpignan Via Domitia, CNRS, Ifremer, Université de Montpellier, Perpignan, France
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Gendre H, Palos Ladeiro M, Geffard A, Poret A, Le Foll F, Ben Cheikh Y. Modulation of haemocyte motility by chemical and biological stresses in Mytilus edulis and Dreissena polymorpha. FISH & SHELLFISH IMMUNOLOGY 2023; 139:108919. [PMID: 37422276 DOI: 10.1016/j.fsi.2023.108919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/15/2023] [Accepted: 06/25/2023] [Indexed: 07/10/2023]
Abstract
Mussels are constantly exposed to various pollutants in the environment, which can impair their immune defences against microbes and thus threaten their survival. In this study, we expand the insight into a key parameter of immune response in two mussel species by exploring the impact of exposure to pollutants or bacteria or simultaneous chemical and biological exposure on haemocyte motility. Basal haemocyte velocity in primary culture was high and increasing over time in Mytilus edulis (mean cell speed of 2.32 μm/min ± 1.57) whereas Dreissena polymorpha showed a constant and rather low cell motility with time (mean cell speed of 0.59 μm/min ± 0.1). In the presence of bacteria, the motility of haemocytes was instantly enhanced and slowed down after 90 min for M. edulis. In contrast, in vitro exposure of haemocytes to chemicals, either Bisphenol A, oestradiol, copper, or caffeine, induced an inhibition of cell motility in both mussel species. Finally, the cellular activation observed during bacterial challenges was inhibited by simultaneous exposure to bacteria and pollutants. Overall, our results indicate that chemical contaminants can alter haemocyte migration in mussels which can weaken their response to pathogens and therefore increase their susceptibility to infectious diseases.
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Affiliation(s)
- Héloïse Gendre
- Université de Reims Champagne-Ardenne, Normandie Université, ULH, INERIS, SEBIO, UMR-I 02, Reims, France; Université Le Havre Normandie, Université de Reims Champagne-Ardenne, INERIS, SEBIO, UMR-I 02, Le Havre, France
| | - Mélissa Palos Ladeiro
- Université de Reims Champagne-Ardenne, Normandie Université, ULH, INERIS, SEBIO, UMR-I 02, Reims, France
| | - Alain Geffard
- Université de Reims Champagne-Ardenne, Normandie Université, ULH, INERIS, SEBIO, UMR-I 02, Reims, France
| | - Agnès Poret
- Université Le Havre Normandie, Université de Reims Champagne-Ardenne, INERIS, SEBIO, UMR-I 02, Le Havre, France
| | - Frank Le Foll
- Université Le Havre Normandie, Université de Reims Champagne-Ardenne, INERIS, SEBIO, UMR-I 02, Le Havre, France
| | - Yosra Ben Cheikh
- Université Le Havre Normandie, Université de Reims Champagne-Ardenne, INERIS, SEBIO, UMR-I 02, Le Havre, France.
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