Key immunity characteristics of diverse stages of brucellosis in rural population from Inner Mongolia, China
Abstract Background Brucellosis poses a serious threat to human and animal health, particularly in developing countries such as China. The Inner Mongolia Autonomous Region is one of the most severely brucellosis-endemic provinces in China. Currently, the host immune responses functioning to control...
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| Format: | Article |
| Language: | English |
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BMC
2022-06-01
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| Series: | Infectious Diseases of Poverty |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40249-022-00989-7 |
| _version_ | 1818235023079243776 |
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| author | Yongzhang Zhu Li Shi Yige Zeng Dongri Piao Yingbo Xie Juan Du Meng Gao Wei Gao Junli Tian Jun Yue Min Li XiaoKui Guo Yufeng Yao YaoXia Kang |
| author_facet | Yongzhang Zhu Li Shi Yige Zeng Dongri Piao Yingbo Xie Juan Du Meng Gao Wei Gao Junli Tian Jun Yue Min Li XiaoKui Guo Yufeng Yao YaoXia Kang |
| author_sort | Yongzhang Zhu |
| collection | DOAJ |
| description | Abstract Background Brucellosis poses a serious threat to human and animal health, particularly in developing countries such as China. The Inner Mongolia Autonomous Region is one of the most severely brucellosis-endemic provinces in China. Currently, the host immune responses functioning to control Brucella infection and development remain poorly understood. The aim of this study is to further clarify the key immunity characteristics of diverse stages of brucellosis in Inner Mongolia. Methods We collected a total of 733 blood samples from acute (n = 137), chronic (n = 316), inapparent (n = 35), recovery (n = 99), and healthy (n = 146) groups from the rural community of Inner Mongolia between 2014 and 2015. The proportions of CD4+, CD8+, Th1, Th2, and Th17 T cells in peripheral blood and the expression of TLR2 and TLR4 in lymphocytes, monocytes and granulocytes were examined using flow cytometry analysis. The differences among the five groups were compared using one-way ANOVA and the Kruskal–Wallis method, respectively. Results Our results revealed that the proportions of CD4+ and CD8+ T cells were significantly different among the acute, chronic, recovery, and healthy control groups (P < 0.05), with lower proportions of CD4+ T cells and a higher proportion of CD8+ T cells in the acute, chronic, and recovery groups. The proportion of Th1 cells in the acute, chronic, and inapparent groups was higher than that in the healthy and recovery groups; however, there was no significant difference between patients and healthy individuals (P > 0.05). The proportion of Th2 lymphocytes was significantly higher in the acute and healthy groups than in the inapparent group (P < 0.05). The proportion of Th17 cells in the acute group was significantly higher than that in the healthy control, chronic, and inapparent groups (P < 0.05). Finally, the highest expression of TLR4 in lymphocytes, monocytes and granulocytes was observed in the recovery group, and this was followed by the acute, chronic, healthy control, and inapparent groups. There was a significant difference between the recovery group and the other groups, except for the acute group (P < 0.05). Moreover, a correlation in TLR4 expression was observed in lymphocytes, monocytes and granulocytes among the five groups (r > 0.5), except for the inapparent group between lymphocytes and granulocytes (r = 0.34). Conclusions Two key factors (CD8+ T cells and TLR4) in human immune profiles may closely correlate with the progression of brucellosis. The detailed function of TLR4 in the context of a greater number of cell types or tissues in human or animal brucellosis and in larger samples should be further explored in the future. Graphical Abstract |
| first_indexed | 2024-12-12T11:47:22Z |
| format | Article |
| id | doaj.art-1060e3a96ed54bec831ec0b65c507252 |
| institution | Directory Open Access Journal |
| issn | 2049-9957 |
| language | English |
| last_indexed | 2024-12-12T11:47:22Z |
| publishDate | 2022-06-01 |
| publisher | BMC |
| record_format | Article |
| series | Infectious Diseases of Poverty |
| spelling | doaj.art-1060e3a96ed54bec831ec0b65c5072522022-12-22T00:25:25ZengBMCInfectious Diseases of Poverty2049-99572022-06-0111111310.1186/s40249-022-00989-7Key immunity characteristics of diverse stages of brucellosis in rural population from Inner Mongolia, ChinaYongzhang Zhu0Li Shi1Yige Zeng2Dongri Piao3Yingbo Xie4Juan Du5Meng Gao6Wei Gao7Junli Tian8Jun Yue9Min Li10XiaoKui Guo11Yufeng Yao12YaoXia Kang13School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of MedicineDepartment of Immunogenetics, Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical CollegeDepartment of Biological Science, Xi’an Jiaotong-Liverpool UniversityState Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and PreventionBaotou Municipal Center for Disease Control and PreventionBaotou Municipal Center for Disease Control and PreventionBaotou Municipal Center for Disease Control and PreventionBaotou Municipal Center for Disease Control and PreventionBaotou Municipal Center for Disease Control and PreventionBaotou Municipal Center for Disease Control and PreventionSchool of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of MedicineSchool of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of MedicineDepartment of Immunogenetics, Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical CollegeBaotou Municipal Center for Disease Control and PreventionAbstract Background Brucellosis poses a serious threat to human and animal health, particularly in developing countries such as China. The Inner Mongolia Autonomous Region is one of the most severely brucellosis-endemic provinces in China. Currently, the host immune responses functioning to control Brucella infection and development remain poorly understood. The aim of this study is to further clarify the key immunity characteristics of diverse stages of brucellosis in Inner Mongolia. Methods We collected a total of 733 blood samples from acute (n = 137), chronic (n = 316), inapparent (n = 35), recovery (n = 99), and healthy (n = 146) groups from the rural community of Inner Mongolia between 2014 and 2015. The proportions of CD4+, CD8+, Th1, Th2, and Th17 T cells in peripheral blood and the expression of TLR2 and TLR4 in lymphocytes, monocytes and granulocytes were examined using flow cytometry analysis. The differences among the five groups were compared using one-way ANOVA and the Kruskal–Wallis method, respectively. Results Our results revealed that the proportions of CD4+ and CD8+ T cells were significantly different among the acute, chronic, recovery, and healthy control groups (P < 0.05), with lower proportions of CD4+ T cells and a higher proportion of CD8+ T cells in the acute, chronic, and recovery groups. The proportion of Th1 cells in the acute, chronic, and inapparent groups was higher than that in the healthy and recovery groups; however, there was no significant difference between patients and healthy individuals (P > 0.05). The proportion of Th2 lymphocytes was significantly higher in the acute and healthy groups than in the inapparent group (P < 0.05). The proportion of Th17 cells in the acute group was significantly higher than that in the healthy control, chronic, and inapparent groups (P < 0.05). Finally, the highest expression of TLR4 in lymphocytes, monocytes and granulocytes was observed in the recovery group, and this was followed by the acute, chronic, healthy control, and inapparent groups. There was a significant difference between the recovery group and the other groups, except for the acute group (P < 0.05). Moreover, a correlation in TLR4 expression was observed in lymphocytes, monocytes and granulocytes among the five groups (r > 0.5), except for the inapparent group between lymphocytes and granulocytes (r = 0.34). Conclusions Two key factors (CD8+ T cells and TLR4) in human immune profiles may closely correlate with the progression of brucellosis. The detailed function of TLR4 in the context of a greater number of cell types or tissues in human or animal brucellosis and in larger samples should be further explored in the future. Graphical Abstracthttps://doi.org/10.1186/s40249-022-00989-7Human brucellosisCD4+ T cellsCD8+ T cellsTh cellsTLR2TLR4 |
| spellingShingle | Yongzhang Zhu Li Shi Yige Zeng Dongri Piao Yingbo Xie Juan Du Meng Gao Wei Gao Junli Tian Jun Yue Min Li XiaoKui Guo Yufeng Yao YaoXia Kang Key immunity characteristics of diverse stages of brucellosis in rural population from Inner Mongolia, China Infectious Diseases of Poverty Human brucellosis CD4+ T cells CD8+ T cells Th cells TLR2 TLR4 |
| title | Key immunity characteristics of diverse stages of brucellosis in rural population from Inner Mongolia, China |
| title_full | Key immunity characteristics of diverse stages of brucellosis in rural population from Inner Mongolia, China |
| title_fullStr | Key immunity characteristics of diverse stages of brucellosis in rural population from Inner Mongolia, China |
| title_full_unstemmed | Key immunity characteristics of diverse stages of brucellosis in rural population from Inner Mongolia, China |
| title_short | Key immunity characteristics of diverse stages of brucellosis in rural population from Inner Mongolia, China |
| title_sort | key immunity characteristics of diverse stages of brucellosis in rural population from inner mongolia china |
| topic | Human brucellosis CD4+ T cells CD8+ T cells Th cells TLR2 TLR4 |
| url | https://doi.org/10.1186/s40249-022-00989-7 |
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