Russell David G, Simwela Nelson V, Mattila Joshua T, Flynn JoAnne, Mwandumba Henry C, Pisu Davide
Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
Department of Infectious Diseases and Microbiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.
Nat Rev Immunol. 2025 May;25(5):370-384. doi: 10.1038/s41577-024-01124-3. Epub 2025 Jan 7.
Macrophages are the primary host cell type for infection by Mycobacterium tuberculosis in vivo. Macrophages are also key immune effector cells that mediate the control of bacterial growth. However, the specific macrophage phenotypes that are required for optimal immune control of M. tuberculosis infection in vivo remain poorly defined. There are two distinct macrophage lineages in the lung, comprising embryonically derived, tissue-resident alveolar macrophages and recruited, blood monocyte-derived interstitial macrophages. Recent studies have shown that these lineages respond divergently to similar immune environments within the tuberculosis granuloma. Here, we discuss how the differing responses of macrophage lineages might affect the control or progression of tuberculosis disease. We suggest that the ability to reprogramme macrophage responses appropriately, through immunological or chemotherapeutic routes, could help to optimize vaccines and drug regimens for tuberculosis.
巨噬细胞是体内结核分枝杆菌感染的主要宿主细胞类型。巨噬细胞也是介导细菌生长控制的关键免疫效应细胞。然而,体内对结核分枝杆菌感染进行最佳免疫控制所需的特定巨噬细胞表型仍不清楚。肺中有两种不同的巨噬细胞谱系,包括胚胎来源的、驻留组织的肺泡巨噬细胞和募集而来的、血液单核细胞衍生的间质巨噬细胞。最近的研究表明,这些谱系对结核肉芽肿内相似的免疫环境反应不同。在此,我们讨论巨噬细胞谱系的不同反应可能如何影响结核病的控制或进展。我们认为,通过免疫或化学治疗途径适当重新编程巨噬细胞反应的能力,可能有助于优化结核病的疫苗和药物治疗方案。
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