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Updated: Feb 10, 2026

A Human Peripheral Blood Mononuclear Cell PBMC Engrafted Humanized Xenograft Model for Translational Immuno-oncology I-O Research
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A Human Peripheral Blood Mononuclear Cell PBMC Engrafted Humanized Xenograft Model for Translational Immuno-oncology I-O Research

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Expression of glucocorticoid receptor shows negative correlation with human B-cell engraftment in PBMC-transplanted

Toshiro Seki1, Asuka Miyamoto2,3, Shino Ohshima2

  • 1Department of Internal Medicine, Division of Nephrology, Endocrinology and Metabolism, Tokai University School of Medicine.

Bioscience Trends
|May 29, 2018
PubMed

The humanized mouse system is a promising tool for analyzing human immune responses in vivo. Recently, we developed a new humanized mouse system using the severely immunodeficient NOD/Shi-scid-IL2rγnull (NOG)-hIL-4-Tg mouse, which enabled us to evaluate the human humoral immune response after peripheral blood mononuclear cell (PBMC) transplantation. However, the mechanism by which hIL-4 enhances antigen-specific IgG production in these mice is not clear. In this study, we analyzed the relationship between human lymphocyte subsets and the expression level of the glucocorticoid receptor (GR) to clarify the humoral immune condition in human PBMC-transplanted NOG-hIL-4 mice. The results showed that the human GR mRNA level was significantly lower in NOG-hIL-4-Tg splenocytes than in conventional NOG splenocytes after immunization. Whereas no obvious difference of the proportion of T helper-cell subsets was observed between the NOG and NOG-hIL-4-Tg mouse strains, the B-cell proportion and antigen-specific IgG concentration in plasma showed strong negative correlations with the GR mRNA level. These results suggest that the GR expression level was changed in PBMCs in the humanized NOG-hIL-4-Tg mice, which may support B-cell survival and function in the mouse system.

Keywords:
Humanized mouseIL-4Th subsetglucocorticoid receptor

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