Kinetics of Eosinophils during Development of the Cellular Infiltrate Surrounding the Nurse Cell of Trichinella spiralis in Experimentally Infected Mice
| Autor: | Fabián-Ricardo Gómez-De-Anda, Georgina Calderón-Domínguez, Raquel Tapia-Romero, Nydia-E. Reyes-Rodríguez, Andrea-P. Zepeda-Velázquez, Mary-Carmen-del-Sol Ramírez-y-Ramírez, Vicente Vega-Sánchez, Jorge-Luis de-la-Rosa-Arana |
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| Rok vydání: | 2021 |
| Předmět: |
nurse cell
Microbiology (medical) Pathology medicine.medical_specialty Trichinella spiralis H&E stain Giemsa stain Nurse cell parasitic diseases medicine cellular infiltrate Immunology and Allergy Myocyte eosinophil Molecular Biology General Immunology and Microbiology biology Skeletal muscle Eosinophil biology.organism_classification Cellular Infiltrate Infectious Diseases medicine.anatomical_structure experimental infection Medicine |
| Zdroj: | Pathogens Volume 10 Issue 11 Pathogens, Vol 10, Iss 1382, p 1382 (2021) |
| ISSN: | 2076-0817 |
| DOI: | 10.3390/pathogens10111382 |
| Popis: | We study the kinetics of eosinophils during the development of the cellular infiltrate surrounding the nurse cell of Trichinella spiralis (T. spiralis) in experimentally infected mice. Male CD1 mice were experimentally infected with 50 viable muscle larvae of the MSUS/MEX/91/CM-91 T. spiralis strain. Tongues and diaphragms were obtained daily from days 13 to 39 post infection. Diaphragms were compressed and subjected to Giemsa stain. Tongues were histologically sectioned and stained with erythrosine B or hematoxylin and eosin. The cellular infiltrate and the nurse cell-larva complex were detected by optical microscopy since day 16 post infection. The size of the larva increased exponentially during the course of the infection. The kinetics of eosinophils showed a multimodal trend, with a bimodal predominance. The maximum peaks were reached on days 21 and 27 post infection. The results of this study demonstrate that eosinophils occur abundantly in two transcendent moments of the T. spiralis life cycle: first, when the stage 1 larva invades the myocyte and second when the nurse cell-larva complex has been fully developed. These results help one to understand the immunobiology of T. spiralis, highlighting the importance of eosinophils in the survival of the larva in skeletal muscle. Further studies are needed to characterize the cell populations that comprise the cellular infiltrate during the development of the mother cell. |
| Databáze: | OpenAIRE |
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