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Analysis of Immune Cell Repopulation After Anti-thymocyte Globulin Administration for Steroid-Resistant T-cell-mediated Rejection

Cited 2 time in Web of Science Cited 2 time in Scopus
Authors

Sim, Ji Hyun; Han, Seung Seok; Lee, Dong-Sup; Kim, Yon Su; Lee, Hajeong; Kim, Hang-Rae

Issue Date
2020-04
Publisher
Appleton & Lange
Citation
Transplantation Proceedings, Vol.52 No.3, pp.759-766
Abstract
Background. Anti-thymocyte globulin (ATG) is a treatment option for steroid-resistant T-cell-mediated rejection after kidney transplantation. However, the extent to which immune-cell subsets can repopulate the peripheral blood is unknown. Methods. Six patients with steroid-resistant T-cell-mediated rejection were recruited and underwent analysis of their immune cells for 1 year after ATG administration. Multicolor flow cytometric analysis was used to evaluate the proportions of T cells, B cells, natural killer cells, and monocytes. Results. T-cell repopulation from 24% to 75% occurred in the treatment group. The major repopulated cells were effector memory CDS8+ T cells followed by effector memory CD4(+) T cells. The population of effector memory CDS8(+) T cells with low expression of interleukin-7 receptor alpha increased over time. The population of regulatory T cells (eg, CD8+ CD28 CD56(+) T cells and CD4(+)CD25(bright) T cells) increased after ATG administration. However, the populations of other immune-cell subsets, including B cells, natural killer cells, and monocytes, were not significantly altered by ATG. Conclusions. Our findings on immune cell repopulation after ATG administration will enable future studies aiming to unravel the steroid-resistance mechanism underlying T-cell-mediated rejection.
ISSN
0041-1345
URI
https://hdl.handle.net/10371/202568
DOI
https://doi.org/10.1016/j.transproceed.2020.01.013
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  • College of Medicine
Research Area Function, Immune modulation by metabolites, T-cell anergy, differentiation of memory CD8+ T cells, metabolism

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