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The dynamic changes of CD3eCD11c+ dendritic cells in spleens and bone marrow of mice infected with Schistosoma japonicum

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Abstract

Schistosoma japonicum as a pathogeny requires dendritic cells to activate immune response. So, the research is to study the dynamic changes of CD3eCD11c+ dendritic cells in mice infected with S. japonicum. Zero, 7, 28, 35, and 63 days were selected to study the variation of dendritic cells, and the proportions of CD3eCD11c+ dendritic cells and CD86+ mature dendritic cells in spleens and bone marrow were tested by flow cytometry. As a result, the variation trends of dendritic cells in spleen and bone marrow are similar as follows: the proportions of CD3eCD11c+ dendritic cells increased first and then decreased from day 35, but the percentages of CD86+ mature dendritic cells decreased from day 28 and increased in day 63. In vitro, cultured dendritic cells treated with SEA and SAWA were tested by flow cytometry, the variation trends of CD86 on dendritic cells are consistent with the results in days 28 and 63. Besides CD86, the expression of MHC-II also hints immune regulation. In conclusion, it is speculated that dendritic cells play a role of immune regulation through MHC-II and CD86 in S. japonicum infection. Immune regulation of dendritic cells is not only in favor of the survival of host and parasite but also can be used in the therapy for immune diseases.

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Abbreviations

SEA:

Soluble egg antigen

SAWA:

Soluble adult worm antigen

DC:

Dendritic cells

MHC-II:

Major histocompatibility complex II

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Acknowledgements

Thank you for the help from Professor Li He and Wei Hou and my partners. They have given me many suggestions in the process of revising the manuscript.

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Correspondence to Wei Hou or Li He.

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The experiment was approved by the Animal Ethics Committee of Wuhan University, and the protocols were strictly in accordance with the rules. All mice were euthanatized on schedule.

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This research received no specific grant from any funding agency, commercial or not-for-profit sectors.

Additional information

Lin Chen and Qingzhou Chen are the first authors and contributed equally to this work.

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Chen, L., Chen, Q., Hou, W. et al. The dynamic changes of CD3eCD11c+ dendritic cells in spleens and bone marrow of mice infected with Schistosoma japonicum . Parasitol Res 116, 1007–1011 (2017). https://doi.org/10.1007/s00436-017-5381-6

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  • DOI: https://doi.org/10.1007/s00436-017-5381-6

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