Yi Mu, Kexin Yan, Donald P McManus, Wilson Nguyen, Daniel J Rawle, Jason A Roberts, Malcolm K Jones, Pengfei Cai
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Marginal cytokine modulation by Schistosoma mansoni soluble egg antigen in SARS-CoV-2-infected K18-hACE2 mice.
Herein, we explore the potential influence of Schistosoma mansoni Sambon, 1907 soluble egg antigen (SmSEA) on the immunopathology of COVID-19 in K18-hACE2 mice infected with an Omicron BA.5 isolate of SARS-CoV-2. SmSEA treatment was delivered in a single dose by intraperitoneal injection, shortly after intrapulmonary inoculation of SARS-CoV-2. RNA-seq identified 36 differentially expressed genes in the spleens of virus-infected mice treated with SmSEA vs. PBS on day 5 post infection. Ingenuity Pathway Analysis of these genes suggested marginal modulation of cytokine responses, with upregulation of the IL-10 and IL-4 signatures and downregulation of the IFNγ signature. However, cytokine responses and histopathology in the lungs were largely unaffected. Future work will require purification of active helminth compounds and dosing and scheduling optimisation.
期刊介绍：
FOLIA PARASITOLOGICA, issued in online versions, is an international journal that covers the whole field of general, systematic, ecological and experimental parasitology. It publishes original research papers, research notes and review articles. Contributions from all branches of animal parasitology, such as morphology, taxonomy, biology, biochemistry, physiology, immunology, molecular biology and evolution of parasites, and host-parasite relationships, are eligible. Novelty and importance in the international (not local or regional) context are required. New geographical records of parasites, records of new hosts, regional parasite and/or host surveys (if they constitute the principal substance of manuscript), local/regional prevalence surveys of diseases, local/regional studies on epidemiology of well known diseases and of parasite impact on human/animal health, case reports, routine clinical studies and testing of established diagnostic or treatment procedures, will not be considered. One species description will also not be considered unless they include more general information, such as new diagnostic characters, host-parasite associations, phylogenetic implications, etc. Manuscripts found suitable on submission will be reviewed by at least two reviewers.
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