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Mao L, Xu L, Wang X, Xing Y, Wang J, Zhang Y, Yuan W, Du J, Shi Z, Ma J, Zhang J, Zhang X, Wang X. Enhanced immunogenicity of the tuberculosis subunit Rv0572c vaccine delivered in DMT liposome adjuvant as a BCG-booster. Tuberculosis (Edinb) 2022; 134:102186. [PMID: 35245739 PMCID: PMC8881818 DOI: 10.1016/j.tube.2022.102186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/18/2022] [Accepted: 02/24/2022] [Indexed: 12/21/2022]
Abstract
COVID-19 has affected the progress made in the prevention and treatment of tuberculosis (TB); hence, the mortality of tuberculosis has risen. Different strategies-based novel TB vaccine candidates have been developed. This study identifies strategies to overcome the limitations of Bacille Calmette-Guérin (BCG) in preventing latent infection and reactivation of TB. The latency antigen Rv0572c was selected based on the mechanism of interaction between Mycobacterium tuberculosis and its host. The rRv0572c protein was used to stimulate whole blood samples derived from patients with clinically diagnosed active TB (ATBs) or latent TB infections (LTBIs) and healthy control (HCs) donors, confirming that this protein can be recognized by T cells in patients with TB, especially LTBIs. C57BL/6 mice were used to investigate the immunogenicity of the rRv0572c protein emulsified in the liposome adjuvant dimethyldioctadecylammonium [DDA], monophosphoryl lipid A [MPLA], trehalose-6, 6′-dibehenate [TDB] (DMT). The results demonstrated that rRv0572c/DMT could boost BCG-primed mice to induce antigen-specific CD4+ T cell production and generate functional T cells dominated by antigen-specific CD8+ T cells. The rRv0572c/DMT vaccine could also trigger limited Th2 humoral immune responses. These findings suggest that rRv0572c/DMT is a potential subunit vaccine candidate that can be used as a booster vaccine for BCG.
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Affiliation(s)
- Lirong Mao
- Department of Immunology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China
| | - Lifa Xu
- Department of Immunology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Xiaochun Wang
- Department of Pathogen Biology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Yingru Xing
- Department of Immunology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China; Department of Clinical Laboratory, Anhui Zhongke Gengjiu Hospital, Hefei, 230000, China
| | - Jian Wang
- Department of Pathogen Biology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China
| | - Yanpeng Zhang
- Department of Pathogen Biology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China
| | - Wei Yuan
- Department of Immunology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China
| | - Jianpeng Du
- Department of Pathogen Biology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China
| | - Zilun Shi
- Department of Clinical Laboratory, Affiliated Cancer Hospital, Anhui University of Science and Technology, Huainan, 232001, China
| | - Jilei Ma
- Department of Clinical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450000, China
| | - Jingyan Zhang
- Department of Clinical Laboratory, Affiliated Heping Hospital, Changzhi Medical College, Changzhi, 046000, China
| | - Xiaohan Zhang
- Department of Pathogen Biology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China
| | - Xinping Wang
- Department of Immunology, School of Medicine, Anhui University of Science and Technology, Huainan, 232001, China
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Park CK, Kang JY. It's Time for Latent Tuberculosis Infection Screening in HIV-infected Individuals. J Korean Med Sci 2019; 34:e276. [PMID: 31625297 PMCID: PMC6801226 DOI: 10.3346/jkms.2019.34.e276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 10/16/2019] [Indexed: 11/21/2022] Open
Affiliation(s)
- Chan Kwon Park
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji Young Kang
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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