Identification of an activation‑related protein in B cells in the ABO incompatible condition

  • Authors:
    • Jingsong Cao
    • Cong Chen
    • Luogen Liu
    • Yunsheng Zhang
    • Hong Zhou
    • Jianhua Xiao
    • Yi Wang
  • View Affiliations

  • Published online on: November 22, 2019     https://doi.org/10.3892/etm.2019.8234
  • Pages: 741-747
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Abstract

In ABO‑incompatible (ABOi) kidney transplantation (KT), antibodies can mediate immunological accommodation or immune rejection, but the mechanism by which B cells are induced to produce antibodies with different functions is still unclear. Previous research established an ABOi kidney cell model and identified that haptoglobin (HP) is associated with the activation of lymphocytes. In the present study, the results of a flow cytometric assay demonstrated that HP was expressed by B cells. Moreover, dot‑ELISA and ELISA analyses showed that the concentrations of total IgG, blood group B antibody, IgG1, IgG2 and IgG4 were all significantly increased in the cell model. In addition, dot‑ELISA and haptoglobin level analyses showed that HP protein expression was significantly increased, while RT‑qPCR assay indicated that HP was significantly reduced at the mRNA level. Furthermore, bioinformatics analysis showed that HP could interact with Smad3, and the HP‑Smad3 complex was detected in a peripheral blood mononuclear cell (PBMC) protein extract by a dot‑ELISA method. This research revealed that HP was involved in the process of B‑cell activation by interacting with Smad3, and the results will be helpful to reveal the mechanism of B‑cell activation in ABOi‑KT.
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January-2020
Volume 19 Issue 1

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Cao J, Chen C, Liu L, Zhang Y, Zhou H, Xiao J and Wang Y: Identification of an activation‑related protein in B cells in the ABO incompatible condition. Exp Ther Med 19: 741-747, 2020
APA
Cao, J., Chen, C., Liu, L., Zhang, Y., Zhou, H., Xiao, J., & Wang, Y. (2020). Identification of an activation‑related protein in B cells in the ABO incompatible condition. Experimental and Therapeutic Medicine, 19, 741-747. https://doi.org/10.3892/etm.2019.8234
MLA
Cao, J., Chen, C., Liu, L., Zhang, Y., Zhou, H., Xiao, J., Wang, Y."Identification of an activation‑related protein in B cells in the ABO incompatible condition". Experimental and Therapeutic Medicine 19.1 (2020): 741-747.
Chicago
Cao, J., Chen, C., Liu, L., Zhang, Y., Zhou, H., Xiao, J., Wang, Y."Identification of an activation‑related protein in B cells in the ABO incompatible condition". Experimental and Therapeutic Medicine 19, no. 1 (2020): 741-747. https://doi.org/10.3892/etm.2019.8234