Summary
Immunology examines the complex network of cells, molecules and pathways that protect organisms from infection, malignancy and tissue damage. Innate immunity provides an immediate, non-specific barrier through physical interfaces (skin and mucosal linings), soluble mediators (complement proteins, cytokines) and sentinel cells (macrophages, neutrophils, dendritic cells and innate lymphoid cells). When these defences are breached, adaptive immunity mounts a highly specific response via T and B lymphocytes. Helper T-cell subsets orchestrate cellular and humoral arms by secreting signature cytokines, while cytotoxic T cells eliminate infected or transformed cells and B cells differentiate into plasma cells that secrete antibodies. Memory cells confer rapid and amplified protection on re-exposure. Dysregulation underlies immunodeficiency, autoimmunity and allergy. Advances in single-cell profiling, systems biology and structural immunology are driving new vaccines, biologics and cell therapies, with global impact on infectious disease control, cancer immunotherapy and treatment of chronic inflammatory disorders.
Research from Nature Portfolio
Single-cell transcriptomics and T-cell-receptor mapping of human mucosal-associated invariant T (MAIT) cells have revealed extensive clonal diversity and tissue-specific functional states. Although MAIT cells possess a semi-invariant receptor, they display graded activation signatures determined by microenvironmental cues, retaining rapid cytokine-secreting capacity across anatomical sites.
In a first-in-human trial, off-the-shelf invariant natural killer T (iNKT) cells were administered to patients with severe acute respiratory distress syndrome. Donor-derived iNKT cells homed to lung tissue, reversed lymphocyte exhaustion, and induced an anti-inflammatory cytokine milieu without dose-limiting toxicity, highlighting the promise of cellular therapy in hyperinflammatory states.
A label-free optical biosensor assay has been developed to monitor Toll-like receptor (TLR) signalling dynamics in live cells. This platform discriminates cell-surface from endosomal pathways, uncovers biased receptor signatures and facilitates real-time characterisation of pharmacological modulators, offering a powerful tool for selective innate-immune modulation.
Topic trend for the past 5 years
The graph below shows the article count in Nature Index journals for immunology.
* The ‘Current Index’ represents data for a 12-month rolling window, the current window is 1 May 2025 - 30 April 2026.
Technical terms
Antigen-presenting cell (APC): A cell (for example dendritic cell or macrophage) that processes protein antigens and displays peptide fragments bound to MHC molecules for T-cell recognition.
Adaptive immunity: The arm of immunity mediated by antigen-specific T and B lymphocytes that generates immunological memory.
Innate immunity: The immediate, non-specific defence system including barriers, phagocytes, complement and pattern recognition receptors.
Pattern recognition receptor (PRR): A germline-encoded sensor (such as a TLR or NOD-like receptor) that recognises conserved microbial or damage-associated motifs.
Cytokine: A soluble protein released by immune and non-immune cells that directs cell migration, differentiation and activation.
Inflammasome: A multiprotein complex that activates caspase-1 to process IL-1β and IL-18 and induce pyroptotic cell death.
Biased signalling: Preferential activation of specific downstream pathways by a receptor depending on ligand or mechanical context.
Notable articles in immunology
- Single-cell analysis of human MAIT cell transcriptional, functional and clonal diversity. Nature Immunology (2023).
- A phase 1/2 clinical trial of invariant natural killer T cell therapy in moderate-severe acute respiratory distress syndrome. Nature Communications (2024).
- Label-free biosensor assay decodes the dynamics of Toll-like receptor signaling. Nature Communications (2024).
About these summaries
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Research
Position of Immunology in Nature Index by Count
Leading institutions
| Institution | Count | Share |
|---|---|---|
| Harvard University | 167 | 51.84 |
| National Institutes of Health (NIH) | 95 | 33.12 |
| Peking University (PKU) | 65 | 21.21 |
| Chinese Academy of Sciences (CAS) | 89 | 20.62 |
| Zhejiang University (ZJU) | 43 | 19.82 |
| Stanford University | 64 | 18.65 |
| Shanghai Jiao Tong University (SJTU) | 58 | 18.58 |
| University of Pennsylvania (Penn) | 66 | 16.94 |
| Northwestern University (NU) | 40 | 15.35 |
| Yale University | 41 | 14.87 |
Leading countries/territories
| Countries/territories | Count | Share |
|---|---|---|
| United States of America (USA) | 839 | 616.83 |
| China | 461 | 373.31 |
| Germany | 189 | 75.55 |
| United Kingdom (UK) | 191 | 66.93 |
| Japan | 108 | 59.21 |
| France | 133 | 52.33 |
| Australia | 100 | 47.43 |
| Canada | 100 | 37.31 |
| Switzerland | 88 | 34.28 |
| Netherlands | 73 | 22.68 |
Collaboration
Top 5 leading collaborators in Immunology
Collaborating institutions
Note: Hover over the bars to view details about each institution's Share.
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