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肺流感病毒特异性记忆 CD4 T 细胞的位置和最佳细胞因子产生依赖于与肺抗原呈递细胞的相互作用。

Lung influenza virus-specific memory CD4 T cell location and optimal cytokine production are dependent on interactions with lung antigen-presenting cells.

机构信息

Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, UK.

Cancer Research UK Scotland Institute, Glasgow, UK.

出版信息

Mucosal Immunol. 2024 Oct;17(5):843-857. doi: 10.1016/j.mucimm.2024.06.001. Epub 2024 Jun 6.


DOI:10.1016/j.mucimm.2024.06.001
PMID:38851589
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11464401/
Abstract

Influenza A virus (IAV) infection leads to the formation of mucosal memory CD4 T cells that can protect the host. An in-depth understanding of the signals that shape memory cell development is required for more effective vaccine design. We have examined the formation of memory CD4 T cells in the lung following IAV infection of mice, characterizing changes to the lung landscape and immune cell composition. IAV-specific CD4 T cells were found throughout the lung at both primary and memory time points. These cells were found near lung airways and in close contact with a range of immune cells including macrophages, dendritic cells, and B cells. Interactions between lung IAV-specific CD4 T cells and major histocompatibility complex (MHC)II+ cells during the primary immune response were important in shaping the subsequent memory pool. Treatment with an anti-MHCII blocking antibody increased the proportion of memory CD4 T cells found in lung airways but reduced interferon-γ expression by IAV-specific immunodominant memory CD4 T cells. The immunodominant CD4 T cells expressed higher levels of programmed death ligand 1 (PD1) than other IAV-specific CD4 T cells and PD1+ memory CD4 T cells were located further away from MHCII+ cells than their PD1-low counterparts. This distinction in location was lost in mice treated with anti-MHCII antibodies. These data suggest that sustained antigen presentation in the lung impacts the formation of memory CD4 T cells by regulating their cytokine production and location.

摘要

甲型流感病毒(IAV)感染会导致黏膜记忆 CD4 T 细胞的形成,从而保护宿主。为了更有效地设计疫苗,需要深入了解塑造记忆细胞发育的信号。我们研究了 IAV 感染小鼠后肺部记忆 CD4 T 细胞的形成,描述了肺部景观和免疫细胞组成的变化。在原发性和记忆性时间点,均可在肺部的各个部位发现 IAV 特异性 CD4 T 细胞。这些细胞位于肺气道附近,并与包括巨噬细胞、树突状细胞和 B 细胞在内的一系列免疫细胞密切接触。在原发性免疫反应中,肺内 IAV 特异性 CD4 T 细胞与主要组织相容性复合体(MHC)II+细胞之间的相互作用对于塑造随后的记忆池非常重要。用抗 MHCII 阻断抗体治疗可增加肺气道中发现的记忆 CD4 T 细胞的比例,但会降低 IAV 特异性免疫显性记忆 CD4 T 细胞中的干扰素-γ表达。与其他 IAV 特异性 CD4 T 细胞相比,免疫显性 CD4 T 细胞表达更高水平的程序性死亡配体 1(PD1),并且 PD1+记忆 CD4 T 细胞的位置比 PD1-低的细胞更远离 MHCII+细胞。在用抗 MHCII 抗体治疗的小鼠中,这种位置上的区别消失了。这些数据表明,肺部持续的抗原呈递通过调节其细胞因子产生和位置影响记忆 CD4 T 细胞的形成。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/0d210b31bf91/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/610fc9af7203/ga1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/1682f5848306/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/65ed83eb7bec/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/4f170af68ec4/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/5455716f3c5c/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/c7da2ae6343e/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/0d210b31bf91/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/610fc9af7203/ga1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/1682f5848306/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/65ed83eb7bec/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/4f170af68ec4/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/5455716f3c5c/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/c7da2ae6343e/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8f5b/11464401/0d210b31bf91/gr6.jpg

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[1]
Lung influenza virus-specific memory CD4 T cell location and optimal cytokine production are dependent on interactions with lung antigen-presenting cells.

Mucosal Immunol. 2024-10

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[3]
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[6]
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[7]
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[8]
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[9]
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[10]
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本文引用的文献

[1]
Triphasic production of IFN by innate and adaptive lymphocytes following influenza A virus infection.

Discov Immunol. 2023-8-19

[2]
Multifunctional cytokine production marks influenza A virus-specific CD4 T cells with high expression of survival molecules.

Eur J Immunol. 2023-11

[3]
Cotransfer of antigen and contextual information harmonizes peripheral and lymph node conventional dendritic cell activation.

Sci Immunol. 2023-7-21

[4]
Toward a general model of CD4 T cell subset specification and memory cell formation.

Immunity. 2023-3-14

[5]
Host Recovery from Respiratory Viral Infection.

Annu Rev Immunol. 2023-4-26

[6]
Bystander activation of Bordetella pertussis-induced nasal tissue-resident memory CD4 T cells confers heterologous immunity to Klebsiella pneumoniae.

Eur J Immunol. 2023-5

[7]
Antigen presenting cells: Professionals, amateurs, and spectators in the 'long game' of lung immunity.

Int J Biochem Cell Biol. 2022-12

[8]
Expanding the tolerance of segmented Influenza A Virus genome using a balance compensation strategy.

PLoS Pathog. 2022-8

[9]
Investigation of CD4 and CD8 T cell-mediated protection against influenza A virus in a cohort study.

BMC Med. 2022-7-21

[10]
Secondary influenza challenge triggers resident memory B cell migration and rapid relocation to boost antibody secretion at infected sites.

Immunity. 2022-4-12

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