Cited by 290Autoimmune and Inflammatory Disorders ResearchImmunodeficiency and Autoimmune DisordersKawasaki Disease and Coronary Complications

The DOI matches its Crossref record; 47 of the 47 references it cites were found in a registry or an index.

Severe imbalance of IL-18/IL-18BP in patients with secondary hemophagocytic syndrome

Open access
Mazodier, K.·2005·Blood

Abstract

Hemophagocytic syndrome (HPS) is characterized by an uncontrolled and poorly understood activation of T-helper 1 (Th-1) lymphocytes and macrophages. We studied 20 patients with HPS secondary to infections, autoimmune disease, lymphoma, or cancer and observed that the concentrations of serum interleukin 18 (IL-18), a strong inducer of Th-1 responses, interferon gamma (IFN-gamma) production, and stimulation of macrophages and natural killer (NK) cells were highly increased in HPS but not in control patients. In contrast, concentrations of its natural inhibitor, the IL-18 binding protein (IL-18BP), were only moderately elevated, resulting in a high level of biologically active free IL-18 in HPS (4.6-fold increase compared with controls; P < .001). Free IL-18 but not IL-12 concentrations significantly correlated with clinical status and the biologic markers of HPS such as anemia (P < .001), hypertriglyceridemia, and hyperferritinemia (P < .01) and also with markers of Th-1 lymphocyte or macrophage activation, such as elevated concentrations of IFN-gamma and soluble IL-2 and tumor necrosis factor alpha (TNF-alpha) receptor concentrations. Despite high IL-18 elevation, in vitro NK-cell cytotoxicity was severely impaired in HPS patients, in part due to NK-cell lymphopenia that was observed in a majority of patients but also secondary to an intrinsic NK-cell functional deficiency. We concluded that a severe IL-18/IL-18BP imbalance results in Th-1 lymphocyte and macrophage activation, which escapes control by NK-cell cytotoxicity and may allow for secondary HPS in patients with underlying diseases.

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Crossref · 10.1182/blood-2005-05-1980

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Metadata

Authors
Mazodier, K.
Affiliations
Inserm (FR)
Corresponding author
Mazodier, K.
Venue
Blood
Published
2005-11-15
Volume
106
Issue
10
Pages
3483-3489
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2157675757
Cited by
290
References
47
Citations by year
2026: 7 · 2025: 6 · 2024: 19 · 2023: 16 · 2022: 16 · 2021: 17 · 2020: 13 · 2019: 19 · 2018: 19 · 2017: 18 · 2016: 14 · 2015: 13 · 2014: 17 · 2013: 13 · 2012: 12
FWCI
5.34
Type
journal article
Language
en
Open access
Locations
  • Blood (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Heart, Lung, and Blood Institute (HL68743, P01HL068743)
  • National Institute of Allergy and Infectious Diseases (AI‑15614)
Topics
  • Health Sciences › Medicine › Hematology › Autoimmune and Inflammatory Disorders Research
  • Life Sciences › Immunology and Microbiology › Immunology › Immunodeficiency and Autoimmune Disorders
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Kawasaki Disease and Coronary Complications
Keywords
hemophagocytic lymphohistiocytosis, secondary hemophagocytic lymphohistiocytosis, IL-18, IL-18BP, macrophage activation, interferon-gamma, NK cell cytotoxicity, hyperferritinemia, hypertriglyceridemia, anemia, soluble interleukin-2 receptor, TNF-alpha receptor, cytokine imbalance
MeSH terms
Adolescent, Adult, Aged, Aged, 80 and over, Autoimmune Diseases, Female, Glycoproteins, Humans, Leukocytes, Lymphocyte Activation, Lymphopenia, Macrophage Activation, Male, Middle Aged, Neoplasms, Prospective Studies, Biomarkers, Cytokines, Interleukin-18, Intercellular Signaling Peptides and Proteins, Lymphohistiocytosis, Hemophagocytic

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