Immune Correlates of Disseminated BCG Infection in IL12RB1-Deficient Mice

Interleukin-12 receptor β1 (IL12RB1)-deficient individuals show increased susceptibilities to local or disseminated BCG infection and environmental mycobacteria infection. However, the low clinical penetrance of IL12RB1 deficiency and low recurrence rate of mycobacteria infection suggest that protec...

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Main Authors: Xuyang Wang, Liqiu Jia, Yang Liu, Jing Wang, Chao Qiu, Tao Li, Wenhong Zhang, Zhaoqin Zhu, Jing Wu, Yanmin Wan
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Vaccines
Subjects:
Online Access:https://www.mdpi.com/2076-393X/10/7/1147
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author Xuyang Wang
Liqiu Jia
Yang Liu
Jing Wang
Chao Qiu
Tao Li
Wenhong Zhang
Zhaoqin Zhu
Jing Wu
Yanmin Wan
author_facet Xuyang Wang
Liqiu Jia
Yang Liu
Jing Wang
Chao Qiu
Tao Li
Wenhong Zhang
Zhaoqin Zhu
Jing Wu
Yanmin Wan
author_sort Xuyang Wang
collection DOAJ
description Interleukin-12 receptor β1 (IL12RB1)-deficient individuals show increased susceptibilities to local or disseminated BCG infection and environmental mycobacteria infection. However, the low clinical penetrance of IL12RB1 deficiency and low recurrence rate of mycobacteria infection suggest that protective immunity still exists in this population. In this study, we investigated the mechanism of tuberculosis suppression using the IL12RB1-deficient mouse model. Our results manifested that <i>Il12rb1</i><sup>−/−</sup> mice had significantly increased CFU counts in spleens and lungs, especially when BCG (Danish strain) was inoculated subcutaneously. The innate TNF-a and IFN-γ responses decreased, while the IL-17 responses increased significantly in the lungs of <i>Il12rb1</i><sup>−/−</sup> mice. We also found that PPD-specific IFN-γ release was impaired in <i>Il12rb1</i><sup>−/−</sup> mice, but the specific TNF-a release was not compromised, and the antibody responses were significantly enhanced. Moreover, correlation analyses revealed that both the innate and PPD-specific IFN-γ responses positively correlated with CFU counts, whereas the innate IL-12a levels negatively correlated with CFU counts in <i>Il12rb1</i><sup>−/−</sup> mice lungs. Collectively, these findings proved that the adaptive immunities against mycobacteria are not completely nullified in <i>Il12rb1</i><sup>−/−</sup> mice. Additionally, our results imply that IFN-γ responses alone might not be able to contain BCGitis in the setting of IL12RB1 deficiency.
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spelling doaj.art-5cef8795b6744d5fad0e8ebf787992302023-12-03T12:23:30ZengMDPI AGVaccines2076-393X2022-07-01107114710.3390/vaccines10071147Immune Correlates of Disseminated BCG Infection in IL12RB1-Deficient MiceXuyang Wang0Liqiu Jia1Yang Liu2Jing Wang3Chao Qiu4Tao Li5Wenhong Zhang6Zhaoqin Zhu7Jing Wu8Yanmin Wan9National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, ChinaNational Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, ChinaShanghai Public Health Clinical Center, Department of Laboratory Medicine, Shanghai 201508, ChinaShanghai Public Health Clinical Center, Department of Laboratory Medicine, Shanghai 201508, ChinaKey Laboratory of Medical Molecular Virology (MOE/MOH), Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, ChinaShanghai Public Health Clinical Center, Department of Tuberculosis, Shanghai 201508, ChinaNational Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, ChinaShanghai Public Health Clinical Center, Department of Laboratory Medicine, Shanghai 201508, ChinaNational Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, ChinaNational Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, ChinaInterleukin-12 receptor β1 (IL12RB1)-deficient individuals show increased susceptibilities to local or disseminated BCG infection and environmental mycobacteria infection. However, the low clinical penetrance of IL12RB1 deficiency and low recurrence rate of mycobacteria infection suggest that protective immunity still exists in this population. In this study, we investigated the mechanism of tuberculosis suppression using the IL12RB1-deficient mouse model. Our results manifested that <i>Il12rb1</i><sup>−/−</sup> mice had significantly increased CFU counts in spleens and lungs, especially when BCG (Danish strain) was inoculated subcutaneously. The innate TNF-a and IFN-γ responses decreased, while the IL-17 responses increased significantly in the lungs of <i>Il12rb1</i><sup>−/−</sup> mice. We also found that PPD-specific IFN-γ release was impaired in <i>Il12rb1</i><sup>−/−</sup> mice, but the specific TNF-a release was not compromised, and the antibody responses were significantly enhanced. Moreover, correlation analyses revealed that both the innate and PPD-specific IFN-γ responses positively correlated with CFU counts, whereas the innate IL-12a levels negatively correlated with CFU counts in <i>Il12rb1</i><sup>−/−</sup> mice lungs. Collectively, these findings proved that the adaptive immunities against mycobacteria are not completely nullified in <i>Il12rb1</i><sup>−/−</sup> mice. Additionally, our results imply that IFN-γ responses alone might not be able to contain BCGitis in the setting of IL12RB1 deficiency.https://www.mdpi.com/2076-393X/10/7/1147IL12RB1MSMDIFN-γBCGinnate immunityadaptive immunity
spellingShingle Xuyang Wang
Liqiu Jia
Yang Liu
Jing Wang
Chao Qiu
Tao Li
Wenhong Zhang
Zhaoqin Zhu
Jing Wu
Yanmin Wan
Immune Correlates of Disseminated BCG Infection in IL12RB1-Deficient Mice
Vaccines
IL12RB1
MSMD
IFN-γ
BCG
innate immunity
adaptive immunity
title Immune Correlates of Disseminated BCG Infection in IL12RB1-Deficient Mice
title_full Immune Correlates of Disseminated BCG Infection in IL12RB1-Deficient Mice
title_fullStr Immune Correlates of Disseminated BCG Infection in IL12RB1-Deficient Mice
title_full_unstemmed Immune Correlates of Disseminated BCG Infection in IL12RB1-Deficient Mice
title_short Immune Correlates of Disseminated BCG Infection in IL12RB1-Deficient Mice
title_sort immune correlates of disseminated bcg infection in il12rb1 deficient mice
topic IL12RB1
MSMD
IFN-γ
BCG
innate immunity
adaptive immunity
url https://www.mdpi.com/2076-393X/10/7/1147
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