Citation: Jie Jia, Hong-Yi Zheng, Yu Zhao, Kai-Cheng Gao, Deshenyue Kong, Danfeng Lu, Ji-Qun Yang, Jun-Hong Mao, Xiuwen Wang, Kun-Hua Wang, Bin Su, Jian-Hua Wang, Yong-Tang Zheng, Yi-Qun Kuang. A decreased proportion of naïve MAIT cells is associated with the incomplete immune reconstitution in antiretroviral therapy-treated HIV-1 patients .VIROLOGICA SINICA, 2025, 40(6) : 962-976.  http://dx.doi.org/10.1016/j.virs.2025.12.003

A decreased proportion of naïve MAIT cells is associated with the incomplete immune reconstitution in antiretroviral therapy-treated HIV-1 patients

  • Incomplete immune reconstitution occurs in 10%-40% of antiretroviral therapy (ART)-treated human immunodeficiency virus (HIV) patients. This subset of immunological non-responders (INRs) has yet to undergo a comprehensive analysis of immunological profiles, and no definitive cytological diagnosis has been established. In this study, we comparatively analyzed the immunological profiles of INRs, immunological responders (IRs), and healthy control individuals (HCs) via single-cell RNA sequencing (scRNA-seq) and single-cell T-cell receptor (TCR) repertoire sequencing of peripheral blood mononuclear cells (PBMCs), and identified a relatively small population of mucosal-associated invariant T (MAIT) cells in INRs. This finding was recapitulated in rhesus macaques infected with simian immunodeficiency virus (SIV). Specifically, the population of the naïve MAIT cell subtype was significantly lower in INRs than in IRs, and the majority of MAIT cells were CD8+ cell subsets. Further characteristic analysis of MAIT cells via the transcriptome revealed decreased expression of cytotoxicity-related genes in INRs, while displaying increased expression of genes involved in TGF-β receptor signaling. In summary, by conducting a comparative analysis, this study revealed a correlation between the decreased proportion of naïve MAIT cells and impaired immune reconstitution in INRs. This finding highlights a particular cell subset that may play a pivotal role in the incomplete immune reconstitution, and suggests a plausible cellular target for the modulation of INRs.

  • 加载中
  • 10.1016j.virs.2025.12.003-ESM1.docx
    10.1016j.virs.2025.12.003-ESM3.xlsx
    10.1016j.virs.2025.12.003-ESM2.xls
    1. Anikeeva, N., Steblyanko, M., Kuri-Cervantes, L., Buggert, M., Betts, M.R.,Sykulev, Y., 2022. The immune synapses reveal aberrant functions of CD8 T cells during chronic HIV infection. Nat Commun, 13, 6436.

    2. Appay, V., Fastenackels, S., Katlama, C., Ait-Mohand, H., Schneider, L., Guihot, A., Keller, M., Grubeck-Loebenstein, B., Simon, A., Lambotte, O., Hunt, P.W., Deeks, S.G., Costagliola, D., Autran, B.,Sauce, D., 2011. Old age and anti-cytomegalovirus immunity are associated with altered T-cell reconstitution in HIV-1-infected patients. AIDS, 25, 1813-1822.

    3. Aran, D., Looney, A.P., Liu, L., Wu, E., Fong, V., Hsu, A., Chak, S., Naikawadi, R.P., Wolters, P.J., Abate, A.R., Butte, A.J.,Bhattacharya, M., 2019. Reference-based analysis of lung single-cell sequencing reveals a transitional profibrotic macrophage. Nat Immunol, 20, 163-172.

    4. Bergstresser, S.,Kulpa, D.A., 2022. TGF-beta Signaling Supports HIV Latency in a Memory CD4+ T Cell Based In Vitro Model. Methods Mol Biol, 2407, 69-79.

    5. Boby, N., Ransom, A., Pace, B.T., Williams, K.M., Mabee, C., Das, A., Srivastav, S.K., Porter, E.,Pahar, B., 2021. Enhanced Intestinal TGF-beta/SMAD-Dependent Signaling in Simian Immunodeficiency Virus Infected Rhesus Macaques. Cells, 10, 806.

    6. Booth, J.S., Salerno-Goncalves, R., Blanchard, T.G., Patil, S.A., Kader, H.A., Safta, A.M., Morningstar, L.M., Czinn, S.J., Greenwald, B.D.,Sztein, M.B., 2015. Mucosal-Associated Invariant T Cells in the Human Gastric Mucosa and Blood: Role in Helicobacter pylori Infection. Front Immunol, 6, 466.

    7. Butler, A., Hoffman, P., Smibert, P., Papalexi, E.,Satija, R., 2018. Integrating single-cell transcriptomic data across different conditions, technologies, and species. Nat Biotechnol, 36, 411-420.

    8. Camp, J.G., Sekine, K., Gerber, T., Loeffler-Wirth, H., Binder, H., Gac, M., Kanton, S., Kageyama, J., Damm, G., Seehofer, D., et al., 2017. Multilineage communication regulates human liver bud development from pluripotency. Nature, 546, 533-538.

    9. Campos Coelho, A.V., Moura, R.R.,Crovella, S., 2020. Reanalysis of Gene Expression Profiles of CD4+ T Cells Treated with HIV-1 Latency Reversal Agents. Microorganisms, 8, 1505.

    10. Carvalho-Silva, W.H.V., Andrade-Santos, J.L., Souto, F.O., Coelho, A.V.C., Crovella, S.,Guimaraes, R.L., 2020. Immunological recovery failure in cART-treated HIV-positive patients is associated with reduced thymic output and RTE CD4+ T cell death by pyroptosis. J Leukoc Biol, 107, 85-94.

    11. Corbett, A.J., Awad, W., Wang, H.,Chen, Z., 2020. Antigen Recognition by MR1-Reactive T Cells; MAIT Cells, Metabolites, and Remaining Mysteries. Front Immunol, 11, 1961.

    12. Godfrey, D.I., Koay, H.F., Mccluskey, J.,Gherardin, N.A., 2019. The biology and functional importance of MAIT cells. Nat Immunol, 20, 1110-1128.

    13. Guo, X., He, S., Lv, X., Ding, H., Li, S., Kang, J., Liu, J., Qin, C., Geng, W., Jiang, Y.,Shang, H., 2016. The Role of HIV-1 in Affecting the Proliferation Ability of HPCs Derived From BM. J Acquir Immune Defic Syndr, 71, 467-473.

    14. Han, F., Gulam, M.Y., Zheng, Y., Zulhaimi, N.S., Sia, W.R., He, D., Ho, A., Hadadi, L., Liu, Z., Qin, P., Lobie, P.E., Kamarulzaman, A., Wang, L.F., Sandberg, J.K., Lewin, S.R., Rajasuriar, R.,Leeansyah, E., 2022. IL7RA single nucleotide polymorphisms are associated with the size and function of the MAIT cell population in treated HIV-1 infection. Front Immunol, 13, 985385.

    15. Huot, N., Rascle, P., Planchais, C., Contreras, V., Passaes, C., Le Grand, R., Beignon, A.S., Kornobis, E., Legendre, R., Varet, H., Saez-Cirion, A., Mouquet, H., Jacquelin, B.,Muller-Trutwin, M., 2021. CD32(+)CD4(+) T Cells Sharing B Cell Properties Increase With Simian Immunodeficiency Virus Replication in Lymphoid Tissues. Front Immunol, 12, 695148.

    16. Izumi, T., Io, K., Matsui, M., Shirakawa, K., Shinohara, M., Nagai, Y., Kawahara, M., Kobayashi, M., Kondoh, H., Misawa, N., Koyanagi, Y., Uchiyama, T.,Takaori-Kondo, A., 2010. HIV-1 viral infectivity factor interacts with TP53 to induce G2 cell cycle arrest and positively regulate viral replication. Proc Natl Acad Sci U S A, 107, 20798-20803.

    17. Jia, J., Zhao, Y., Yang, J.Q., Lu, D.F., Zhang, X.L., Mao, J.H., Wang, K.H., Wang, J.H.,Kuang, Y.Q., 2022. Naive B cells with low differentiation improve the immune reconstitution of HIV-infected patients. iScience, 25, 105559.

    18. Khoury, G., Rajasuriar, R., Cameron, P.U.,Lewin, S.R., 2011. The role of naive T-cells in HIV-1 pathogenesis: an emerging key player. Clin Immunol, 141, 253-267.

    19. Koury, J., Singh, H., Sutley-Koury, S.N., Fok, D., Qiu, X., Maung, R., Gelman, B.B., Ethell, I.M.,Kaul, M., 2025. EphB2-mediated ephrin-B reverse signaling on microglia drives an anti-viral, but inflammatory and neurotoxic response associated with HIV. J Neuroinflammation, 22, 171.

    20. Kurioka, A., Jahun, A.S., Hannaway, R.F., Walker, L.J., Fergusson, J.R., Sverremark-Ekstrom, E., Corbett, A.J., Ussher, J.E., Willberg, C.B.,Klenerman, P., 2017. Shared and Distinct Phenotypes and Functions of Human CD161++ Valpha7.2+ T Cell Subsets. Front Immunol, 8, 1031.

    21. Ladell, K., Hellerstein, M.K., Cesar, D., Busch, R., Boban, D.,Mccune, J.M., 2008. Central memory CD8+ T cells appear to have a shorter lifespan and reduced abundance as a function of HIV disease progression. J Immunol, 180, 7907-7918.

    22. Lal, K.G., Kim, D., Costanzo, M.C., Creegan, M., Leeansyah, E., Dias, J., Paquin-Proulx, D., Eller, L.A., Schuetz, A., Phuang-Ngern, Y., et al., 2020. Dynamic MAIT cell response with progressively enhanced innateness during acute HIV-1 infection. Nat Commun, 11, 272.

    23. Li, H., Tang, Y., Wang, Y., Li, Y., Yang, Y., Liao, K., Song, F., Deng, S.,Chen, Y., 2022. Single-cell sequencing resolves the landscape of immune cells and regulatory mechanisms in HIV-infected immune non-responders. Cell Death Dis, 13, 849.

    24. Li, L., Yu, F., Yang, S., Li, H., Tang, Y.,Ma, C., 2025. Lower immune senescence of T cell subsets among virologically suppressed Chinese men who have sex with men living with HIV in comparison with those ART naive. BMC Infect Dis, 25, 290.

    25. Liu, X., Zhang, L., Li, X., Chen, L., Lu, L., Yang, Y., Wu, Y., Zheng, L., Tang, J., Wang, F., Han, Y., Song, X., Cao, W.,Li, T., 2025. Single-cell multi-omics profiling uncovers the immune heterogeneity in HIV-infected immunological non-responders. EBioMedicine, 115, 105667.

    26. Luecken, M.D.,Theis, F.J., 2019. Current best practices in single-cell RNA-seq analysis: a tutorial. Mol Syst Biol, 15, e8746.

    27. Mao, Y., Liao, Q., Zhu, Y., Bi, M., Zou, J., Zheng, N., Zhu, L., Zhao, C., Liu, Q., Liu, L., et al., 2024. Efficacy and safety of novel multifunctional M10 CAR-T cells in HIV-1-infected patients: a phase I, multicenter, single-arm, open-label study. Cell Discov, 10, 49.

    28. Menendez-Arias, L.,Delgado, R., 2022. Update and latest advances in antiretroviral therapy. Trends Pharmacol Sci, 43, 16-29.

    29. Mensching, L.,Hoelzemer, A., 2022. NK Cells, Monocytes and Macrophages in HIV-1 Control: Impact of Innate Immune Responses. Front Immunol, 13, 883728.

    30. Mou, T., Gao, K.C., Chen, X., Qian, Q., Lin, J., Zhang, R., Yang, J., Qu, P., Zhou, G.,Kuang, Y.Q., 2025. Clinical events associated with poor CD4(+) T-cell recovery in people living with HIV following ART: A systematic review and meta-analysis. J Infect, 90, 106414.

    31. Noyan, K., Nguyen, S., Betts, M.R., Sonnerborg, A.,Buggert, M., 2018. Human Immunodeficiency Virus Type-1 Elite Controllers Maintain Low Co-Expression of Inhibitory Receptors on CD4+ T Cells. Front Immunol, 9, 19.

    32. Ospina Stella, A.,Turville, S., 2018. All-Round Manipulation of the Actin Cytoskeleton by HIV. Viruses, 10, 63.

    33. Pedersen, M.L., Pedersen, D.V., Winkler, M.B.L., Olesen, H.G., Sogaard, O.S., Ostergaard, L., Laursen, N.S., Rahimic, A.H.F.,Tolstrup, M., 2023. Nanobody-mediated complement activation to kill HIV-infected cells. EMBO Mol Med, 15, e16422.

    34. Pinzone, M.R., Weissman, S., Pasternak, A.O., Zurakowski, R., Migueles, S.,O'doherty, U., 2021. Naive infection predicts reservoir diversity and is a formidable hurdle to HIV eradication. JCI Insight, 6:e150794.

    35. Provine, N.M.,Klenerman, P., 2020. MAIT Cells in Health and Disease. Annu Rev Immunol, 38, 203-228.

    36. Ren, X., Wen, W., Fan, X., Hou, W., Su, B., Cai, P., Li, J., Liu, Y., Tang, F., Zhang, F., et al., 2021. COVID-19 immune features revealed by a large-scale single-cell transcriptome atlas. Cell, 184, 1895-1913 e1819.

    37. Romero, P., Zippelius, A., Kurth, I., Pittet, M.J., Touvrey, C., Iancu, E.M., Corthesy, P., Devevre, E., Speiser, D.E.,Rufer, N., 2007. Four functionally distinct populations of human effector-memory CD8+ T lymphocytes. J Immunol, 178, 4112-4119.

    38. Rossjohn, J., Gras, S., Miles, J.J., Turner, S.J., Godfrey, D.I.,Mccluskey, J., 2015. T cell antigen receptor recognition of antigen-presenting molecules. Annu Rev Immunol, 33, 169-200.

    39. Roth, L.M., Akay-Espinoza, C., Grinspan, J.B.,Jordan-Sciutto, K.L., 2021. HIV-induced neuroinflammation inhibits oligodendrocyte maturation via glutamate-dependent activation of the PERK arm of the integrated stress response. Glia, 69, 2252-2271.

    40. Rowland-Jones, S.,De Silva, T., 2008. Resisting immune exhaustion in HIV-1 infection. PLoS Med, 5, e103.

    41. Sakala, I.G., Kjer-Nielsen, L., Eickhoff, C.S., Wang, X., Blazevic, A., Liu, L., Fairlie, D.P., Rossjohn, J., Mccluskey, J., Fremont, D.H., Hansen, T.H.,Hoft, D.F., 2015. Functional Heterogeneity and Antimycobacterial Effects of Mouse Mucosal-Associated Invariant T Cells Specific for Riboflavin Metabolites. J Immunol, 195, 587-601.

    42. Shan, L., Deng, K., Gao, H., Xing, S., Capoferri, A.A., Durand, C.M., Rabi, S.A., Laird, G.M., Kim, M., Hosmane, N.N., Yang, H.C., Zhang, H., Margolick, J.B., Li, L., Cai, W., Ke, R., Flavell, R.A., Siliciano, J.D.,Siliciano, R.F., 2017. Transcriptional Reprogramming during Effector-to-Memory Transition Renders CD4(+) T Cells Permissive for Latent HIV-1 Infection. Immunity, 47, 766-775 e763.

    43. Solis-Leal, A., Boby, N., Mallick, S., Cheng, Y., Wu, F., De La Torre, G., Dufour, J., Alvarez, X., Shivanna, V., Liu, Y., Fennessey, C.M., Lifson, J.D., Li, Q., Keele, B.F.,Ling, B., 2023. Lymphoid tissues contribute to plasma viral clonotypes early after antiretroviral therapy interruption in SIV-infected rhesus macaques. Sci Transl Med, 15, eadi9867.

    44. Sortino, O., Dias, J., Anderson, M., Laidlaw, E., Leeansyah, E., Lisco, A., Sheikh, V., Sandberg, J.K.,Sereti, I., 2021. Preserved Mucosal-Associated Invariant T-Cell Numbers and Function in Idiopathic CD4 Lymphocytopenia. J Infect Dis, 224, 715-725.

    45. Spaan, M., Hullegie, S.J., Beudeker, B.J., Kreefft, K., Van Oord, G.W., Groothuismink, Z.M., Van Tilborg, M., Rijnders, B., De Knegt, R.J., Claassen, M.A.,Boonstra, A., 2016. Frequencies of Circulating MAIT Cells Are Diminished in Chronic HCV, HIV and HCV/HIV Co-Infection and Do Not Recover during Therapy. PLoS One, 11, e0159243.

    46. Su, B., Kong, D., Yang, X., Zhang, T.,Kuang, Y.Q., 2022. Mucosal-associated invariant T cells: A cryptic coordinator in HIV-infected immune reconstitution. J Med Virol, 94, 3043-3053.

    47. Tang, X., Zhang, S., Peng, Q., Ling, L., Shi, H., Liu, Y., Cheng, L., Xu, L., Chakrabarti, L.A., Chen, Z., Wang, H.,Zhang, Z., 2020. Sustained IFN-I stimulation impairs MAIT cell responses to bacteria by inducing IL-10 during chronic HIV-1 infection. Sci Adv, 6, eaaz0374.

    48. Tolomeo, M.,Cascio, A., 2025. The STAT Signaling Pathway in HIV-1 Infection: Roles and Dysregulation. Int J Mol Sci, 26, 9123.

    49. Toubal, A., Nel, I., Lotersztajn, S.,Lehuen, A., 2019. Mucosal-associated invariant T cells and disease. Nat Rev Immunol, 19, 643-657.

    50. Ussher, J.E., Willberg, C.B.,Klenerman, P., 2018. MAIT cells and viruses. Immunol Cell Biol, 96, 630-641.

    51. Van Der Maaten Laurens, H.G., 2008. Visualizing data using t-SNE. Journal of Machine Learning Research,9, 2579-2605.

    52. Venanzi Rullo, E., Pinzone, M.R., Cannon, L., Weissman, S., Ceccarelli, M., Zurakowski, R., Nunnari, G.,O'doherty, U., 2020. Persistence of an intact HIV reservoir in phenotypically naive T cells. JCI Insight, 5, e133157.

    53. Vos, W., Navas, A., Meeder, E.M.G., Blaauw, M.J.T., Groenendijk, A.L., Van Eekeren, L.E., Otten, T., Vadaq, N., Matzaraki, V., Van Cranenbroek, B., Brinkman, K., Van Lunzen, J., Joosten, L.a.B., Netea, M.G., Blok, W.L., Van Der Ven, A., Koenen, H.,Stalenhoef, J.E., 2024. HIV immunological non-responders are characterized by extensive immunosenescence and impaired lymphocyte cytokine production capacity. Front Immunol, 15, 1350065.

    54. Wang, Z., Zhen, C., Guo, X., Qu, M., Zhang, C., Song, J., Fan, X., Huang, H., Xu, R., Zhang, J., Yuan, J., Hong, W., Li, J., Wang, F.S., Jiao, Y.M.,Linghu, E., 2024. Landscape of gut mucosal immune cells showed gap of follicular or memory B cells into plasma cells in immunological non-responders. Clin Transl Med, 14, e1699.

    55. Wolska, E.,Brach, M., 2022. Distribution of Drug Substances in Solid Lipid Microparticles (SLM)-Methods of Analysis and Interpretation. Pharmaceutics, 14, 335.

    56. Wong, E.B., Gold, M.C., Meermeier, E.W., Xulu, B.Z., Khuzwayo, S., Sullivan, Z.A., Mahyari, E., Rogers, Z., Kloverpris, H., Sharma, P.K., et al., 2019. TRAV1-2(+) CD8(+) T-cells including oligoconal expansions of MAIT cells are enriched in the airways in human tuberculosis. Commun Biol, 2, 203.

    57. Xia, P., Xing, X.D., Yang, C.X., Liao, X.J., Liu, F.H., Huang, H.H., Zhang, C., Song, J.W., Jiao, Y.M., Shi, M., Jiang, T.J., Zhou, C.B., Wang, X.C., He, Q., Zeng, Q.L., Wang, F.S.,Zhang, J.Y., 2022. Activation-induced pyroptosis contributes to the loss of MAIT cells in chronic HIV-1 infected patients. Mil Med Res, 9, 24.

    58. Yang, X., Huang, T., Wang, T., Gao, H., Zhang, H., Peng, W., Zhao, J., Hu, S., Lu, P., Hong, Z., Li, B.,Deng, K., 2021. MAT2A-Mediated S-Adenosylmethionine Level in CD4(+) T Cells Regulates HIV-1 Latent Infection. Front Immunol, 12, 745784.

    59. Yang, X., Su, B., Zhang, X., Liu, Y., Wu, H.,Zhang, T., 2020. Incomplete immune reconstitution in HIV/AIDS patients on antiretroviral therapy: Challenges of immunological non-responders. J Leukoc Biol, 107, 597-612.

    60. Yim, L.Y., Lam, K.S., Luk, T.Y., Mo, Y., Lu, X., Wang, J., Cheung, K.W., Lui, G.C.Y., Chan, D.P.C., Wong, B.C.K., et al., 2023. Transforming Growth Factor beta Signaling Promotes HIV-1 Infection in Activated and Resting Memory CD4(+) T Cells. J Virol, 97, e0027023.

    61. Zeng, M., Smith, A.J., Wietgrefe, S.W., Southern, P.J., Schacker, T.W., Reilly, C.S., Estes, J.D., Burton, G.F., Silvestri, G., Lifson, J.D., Carlis, J.V.,Haase, A.T., 2011. Cumulative mechanisms of lymphoid tissue fibrosis and T cell depletion in HIV-1 and SIV infections. J Clin Invest, 121, 998-1008.

    62. Zhang, B., Li, S., Ding, J., Guo, J., Ma, Z.,Duan, H., 2025. Rho-GTPases subfamily: cellular defectors orchestrating viral infection. Cell Mol Biol Lett, 30, 55.

    63. Zhang, Y., Ji, J., Xie, K., Cai, M., Wang, R., Zhang, X., Chen, X., Zhang, Y., Wu, H., Wang, W., Li, Z.,Zhang, T., 2024. Pathological proliferation: a potential mechanism for poor CD4(+) T cell recovery in people living with HIV. Front Cell Infect Microbiol, 14, 1344778.

    64. Zhao, H., He, Y., Ling, X., Hou, H., Da, F., Chen, J., Guo, P., Li, Y., Zhang, Y., Li, Q., Tang, X.,Li, L., 2024. Profiles of Lymphocyte Subtypes in HIV-Infected People With Different Immunologic Responses to Antiretroviral Therapy. J Med Virol, 96, e70081.

    65. Zheng, H.Y., Wang, X.H., He, X.Y., Chen, M., Zhang, M.X., Lian, X.D., Song, J.H., Hu, Y., Pang, W., Wang, Y., Hu, Z.F., Lv, L.B.,Zheng, Y.T., 2022. Aging induces severe SIV infection accompanied by an increase in follicular CD8+ T cells with overactive STAT3 signaling. Cell Mol Immunol, 19, 1042-1053.

  • 加载中

Figures(1)

Article Metrics

Article views(2040) PDF downloads(4) Cited by()

Related
Proportional views

    A decreased proportion of naïve MAIT cells is associated with the incomplete immune reconstitution in antiretroviral therapy-treated HIV-1 patients

      Corresponding author: Bin Su, binsu@ccmu.edu.cn
      Corresponding author: Jian-Hua Wang, wang_jianhua@gibh.ac.cn
      Corresponding author: Yong-Tang Zheng, zhengyt@mail.kiz.ac.cn
      Corresponding author: Yi-Qun Kuang, kuangyiqun@kmmu.edu.cn
    • a. Research Center for Clinical Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China;
    • b. Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Kunming Medical University, Kunming, 650500, China;
    • c. State Key Laboratory of Genetic Evolution & Animal Models, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China;
    • d. NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming 650032, China;
    • e. Third People's Hospital of Kunming City/Drug Rehabilitation Hospital of Kunming City, Kunming 650041, China;
    • f. Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China;
    • g. School of Life Science, Yunnan University, Kunming 650500, China;
    • h. Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China

    Abstract: Incomplete immune reconstitution occurs in 10%-40% of antiretroviral therapy (ART)-treated human immunodeficiency virus (HIV) patients. This subset of immunological non-responders (INRs) has yet to undergo a comprehensive analysis of immunological profiles, and no definitive cytological diagnosis has been established. In this study, we comparatively analyzed the immunological profiles of INRs, immunological responders (IRs), and healthy control individuals (HCs) via single-cell RNA sequencing (scRNA-seq) and single-cell T-cell receptor (TCR) repertoire sequencing of peripheral blood mononuclear cells (PBMCs), and identified a relatively small population of mucosal-associated invariant T (MAIT) cells in INRs. This finding was recapitulated in rhesus macaques infected with simian immunodeficiency virus (SIV). Specifically, the population of the naïve MAIT cell subtype was significantly lower in INRs than in IRs, and the majority of MAIT cells were CD8+ cell subsets. Further characteristic analysis of MAIT cells via the transcriptome revealed decreased expression of cytotoxicity-related genes in INRs, while displaying increased expression of genes involved in TGF-β receptor signaling. In summary, by conducting a comparative analysis, this study revealed a correlation between the decreased proportion of naïve MAIT cells and impaired immune reconstitution in INRs. This finding highlights a particular cell subset that may play a pivotal role in the incomplete immune reconstitution, and suggests a plausible cellular target for the modulation of INRs.

    Figure (1)  Reference (65) Relative (20)

    目录

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return