Cited by 203Autoimmune and Inflammatory Disorders ResearchImmunodeficiency and Autoimmune DisordersInflammasome and immune disorders

Etoposide Selectively Ablates Activated T Cells To Control the Immunoregulatory Disorder Hemophagocytic Lymphohistiocytosis

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Johnson, Theodore S, Terrell, Catherine E, Millen, Scott H, Katz, Jonathan D, Hildeman, David A, Jordan, Michael B·2014·The Journal of Immunology

Abstract

Hemophagocytic lymphohistiocytosis (HLH) is an inborn disorder of immune regulation caused by mutations affecting perforin-dependent cytotoxicity. Defects in this pathway impair negative feedback between cytotoxic lymphocytes and APCs, leading to prolonged and pathologic activation of T cells. Etoposide, a widely used chemotherapeutic drug that inhibits topoisomerase II, is the mainstay of treatment for HLH, although its therapeutic mechanism remains unknown. We used a murine model of HLH, involving lymphocytic choriomeningitis virus infection of perforin-deficient mice, to study the activity and mechanism of etoposide for treating HLH and found that it substantially alleviated all symptoms of murine HLH and allowed prolonged survival. This therapeutic effect was relatively unique among chemotherapeutic agents tested, suggesting distinctive effects on the immune response. We found that the therapeutic mechanism of etoposide in this model system involved potent deletion of activated T cells and efficient suppression of inflammatory cytokine production. This effect was remarkably selective; etoposide did not exert a direct anti-inflammatory effect on macrophages or dendritic cells, and it did not cause deletion of quiescent naive or memory T cells. Finally, etoposide’s immunomodulatory effects were similar in wild-type and perforin-deficient animals. Thus, etoposide treats HLH by selectively eliminating pathologic, activated T cells and may have usefulness as a novel immune modulator in a broad array of immunopathologic disorders.

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  • Cyclophosphamide and etoposide are often effective in patients with primary HLH, secondary HLH including macrophage activation syndrome, and corresponding models.

    “Cyclophosphamide and etoposide, which are broadly cytotoxic but particularly effective at eliminating activated CD8+ T cells, are often effective in patients with primary HLH, secondary HLH (including macrophage activation syndrome), and corresponding models.75”

    From Cytokine storm (2020) · cites this paper as [75]

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Authors
Johnson, T. S., Terrell, C. E., Millen, S. H., Katz, J. D., Hildeman, D. A., & Jordan, M. B.
Affiliations
  • Augusta University (US)
  • Cincinnati Children's Hospital Medical Center (US)
Corresponding author
Jordan, Michael B
Venue
The Journal of Immunology
Published
2014-01-01
Volume
192
Issue
1
Pages
84-91
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2105957247
Cited by
203
References
48
Citations by year
2026: 7 · 2025: 13 · 2024: 29 · 2023: 19 · 2022: 17 · 2021: 20 · 2020: 28 · 2019: 18 · 2018: 12 · 2017: 19 · 2016: 8 · 2015: 8 · 2014: 4 · 2013: 1
FWCI
5.02
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R01HL091769)
  • National Institute of Allergy and Infectious Diseases (U54AI082973)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK081175)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (P30AR047363)
Topics
  • Health Sciences › Medicine › Hematology › Autoimmune and Inflammatory Disorders Research
  • Life Sciences › Immunology and Microbiology › Immunology › Immunodeficiency and Autoimmune Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
Keywords
hemophagocytic lymphohistiocytosis, etoposide, perforin deficiency, topoisomerase II inhibition, cytotoxic T lymphocytes, lymphocytic choriomeningitis virus, inflammatory cytokines, immunomodulation, innate immune regulation
MeSH terms
Animals, Dendritic Cells, Disease Models, Animal, DNA-Binding Proteins, Etoposide, Interferon-gamma, Lymphocyte Activation, Lymphocytic choriomeningitis virus, Macrophage Activation, Macrophages, T-Lymphocytes, Apoptosis, Antigen Presentation, Mice, Knockout, Lymphohistiocytosis, Hemophagocytic, Mice, Topoisomerase II Inhibitors

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