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Complement regulation in ovine lymph nodes during early pregnancy

  • Authors:
    • Leying Zhang
    • Lidong Cao
    • Pengfei Feng
    • Xu Han
    • Ling Yang
  • View Affiliations / Copyright

    Affiliations: Department of Animal Science, School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, Hebei 056038, P.R. China
    Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY 4.0].
  • Article Number: 166
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    Published online on: December 23, 2021
       https://doi.org/10.3892/etm.2021.11089
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Abstract

A fetus changes immune responses in the uterus and the maternal immune system, and lymph nodes are associated with regulating maternal adaptive immunity. Complement activation is associated with abnormal pregnancy in mice and humans. The aim of the present study was to explore the expression levels of complement components in maternal lymph nodes during early pregnancy in sheep. Maternal inguinal lymph nodes were sampled on day 16 of the estrous cycle, and days 13, 16 and 25 of gestation in ewes. Reverse transcription‑quantitative PCR, western blotting and immunohistochemical analyses were used to detect the expression levels of complement components C1q, C1r, C1s, C2, C3, C4a, C5b and C9 in the lymph nodes. The results revealed that the protein and mRNA levels of C1q, C1s and C5b were enhanced during early pregnancy, and that C1r and C4a were upregulated at day 25 of pregnancy. The mRNA and protein levels of C2 and C9 peaked at day 16 of pregnancy, but C3 was decreased at day 25 of pregnancy. C3 protein was located in the subcapsular sinuses and lymph sinuses of the maternal lymph node. In summary, the present study detected changes in the expression levels of complement components in maternal lymph nodes, which may be associated with maternal immune regulation during early pregnancy in sheep.
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Copy and paste a formatted citation
Spandidos Publications style
Zhang L, Cao L, Feng P, Han X and Yang L: Complement regulation in ovine lymph nodes during early pregnancy. Exp Ther Med 23: 166, 2022.
APA
Zhang, L., Cao, L., Feng, P., Han, X., & Yang, L. (2022). Complement regulation in ovine lymph nodes during early pregnancy. Experimental and Therapeutic Medicine, 23, 166. https://doi.org/10.3892/etm.2021.11089
MLA
Zhang, L., Cao, L., Feng, P., Han, X., Yang, L."Complement regulation in ovine lymph nodes during early pregnancy". Experimental and Therapeutic Medicine 23.2 (2022): 166.
Chicago
Zhang, L., Cao, L., Feng, P., Han, X., Yang, L."Complement regulation in ovine lymph nodes during early pregnancy". Experimental and Therapeutic Medicine 23, no. 2 (2022): 166. https://doi.org/10.3892/etm.2021.11089
Copy and paste a formatted citation
x
Spandidos Publications style
Zhang L, Cao L, Feng P, Han X and Yang L: Complement regulation in ovine lymph nodes during early pregnancy. Exp Ther Med 23: 166, 2022.
APA
Zhang, L., Cao, L., Feng, P., Han, X., & Yang, L. (2022). Complement regulation in ovine lymph nodes during early pregnancy. Experimental and Therapeutic Medicine, 23, 166. https://doi.org/10.3892/etm.2021.11089
MLA
Zhang, L., Cao, L., Feng, P., Han, X., Yang, L."Complement regulation in ovine lymph nodes during early pregnancy". Experimental and Therapeutic Medicine 23.2 (2022): 166.
Chicago
Zhang, L., Cao, L., Feng, P., Han, X., Yang, L."Complement regulation in ovine lymph nodes during early pregnancy". Experimental and Therapeutic Medicine 23, no. 2 (2022): 166. https://doi.org/10.3892/etm.2021.11089
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