Document Type
Article
Publication Date
3-2019
Keywords
JMG
JAX Source
EBioMedicine 2019 Mar; 41:584-596
Volume
41
First Page
584
Last Page
596
ISSN
2352-3964
PMID
30772305
DOI
https://doi.org/10.1016/j.ebiom.2019.02.001
Grant
CA034196
Abstract
BACKGROUND: Graft-versus host disease (GVHD) is a complication of stem cell transplantation associated with significant morbidity and mortality. Non-specific immune-suppression, the mainstay of treatment, may result in immune-surveillance dysfunction and disease recurrence.
METHODS: We created humanised mice model for chronic GVHD (cGVHD) by injecting cord blood (CB)-derived human CD34
FINDINGS: In cGVHD humanised mice, we found activation of T cells in the spleen, lung, liver, and skin, activation of macrophages in lung and liver, and loss of appendages in skin, obstruction of bronchioles in lung and portal fibrosis in liver recapitulating cGVHD. Acute GVHD humanised mice showed activation of T cells with skewed TCR repertoire without significant macrophage activation.
INTERPRETATION: Using humanised mouse models, we demonstrated distinct immune mechanisms contributing acute and chronic GVHD. In cGVHD model, co-activation of human HSPC-derived macrophages and T cells educated in the recipient thymus contributed to delayed onset, multi-organ disease. In acute GVHD model, mature human T cells contained in the graft resulted in rapid disease progression. These humanised mouse models may facilitate future development of new molecular medicine targeting GVHD.
Recommended Citation
Ono R,
Watanabe T,
Kawakami E,
Iwasaki M,
Tomizawa-Murasawa M,
Matsuda M,
Najima Y,
Takagi S,
Fujiki S,
Sato R,
Mochizuki Y,
Yoshida H,
Sato K,
Yabe H,
Kato S,
Saito Y,
Taniguchi S,
Shultz LD,
Ohara O,
Amagai M,
Koseki H,
Ishikawa F.
Co-activation of macrophages and T cells contribute to chronic GVHD in human IL-6 transgenic humanised mouse model. EBioMedicine 2019 Mar; 41:584-596
Comments
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