Cited by 70Immune cells in cancerImmunotherapy and Immune ResponsesIron Metabolism and Disorders

Immunosuppressive effects of melanoma-derived heavy-chain ferritin are dependent on stimulation of IL-10 production

Gray, Christian P., Franco, Agustin V., Arosio, P., Hersey, Peter·2001·International Journal of Cancer

Abstract

Cultured melanoma cells release soluble factors that influence immune responses. Screening of a cDNA library with anti-sera from a melanoma patient identified an immunoreactive plaque, which encoded heavy-chain ferritin (H-ferritin). Previous studies have drawn attention to the immunosuppressive effects of this molecule and prompted further studies on its biochemical and functional properties in human melanoma. These studies demonstrated, firstly, that H-ferritin appeared to be secreted by melanoma cells, as shown by immunoprecipitation of a 21.5 kDa band from supernatants. It was also detected in extracts of melanoma cells by Western blotting as 43 and 64 kDa dimers and trimers of the 21.5 kDa fraction. Secondly, flow-cytometric analysis of H- and light-chain ferritin (L-ferritin) expression on melanoma showed a wide variation in L-ferritin expression and consequently of the ratio of H- to L-ferritin expression. Suppression of mitogenic responses of lymphocytes to anti-CD3 showed a correlation with the ratio of H- to L-ferritin in the supernatants and was specific for H-ferritin, as shown by inhibition studies with a monoclonal antibody (MAb) against H-ferritin. Similar results were obtained with H- and L-ferritin from other sources. Suppression of mitogenic responses of lymphocytes to anti-CD3 by H-ferritin was inhibited using a MAb against IL-10, which suggested that the immunosuppressive effect of H-ferritin was mediated by IL-10. Assays of cytokine production from anti-CD3-stimulated lymphocytes showed that H-ferritin markedly increased production of IL-10 and IFN-gamma and had only slight effects on IL-2 and IL-4 production. Our results suggest that melanoma cells may be a major source of H-ferritin and that production of the latter may account for some of the immunosuppressive effects of melanoma.

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Crossref · 10.1002/ijc.1269

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  • Iron present in FTH affects the function of Tregs, as demonstrated in malignant melanoma patients.

    “Indirectly, iron present in FTH affects the function of T regs as demonstrated in malignant melanoma patients.”

    From Iron in infection and immunity (2020) · cites this paper as Gray et al., 2001

  • FTH-induced effects result in Treg activation and IL-10 secretion, mediated via CTLA-4 and PD-1.

    “This results in T reg activation and IL-10 secretion, consequently, mediated via CTLA-4 (for cytotoxic Tlymphocyte-associated antigen-4) and PD-1 (for programmed death-1) (Gray et al., 2001).”

    From Iron in infection and immunity (2020) · cites this paper as Gray et al., 2001

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Authors
Gray, C. P., Franco, A. V., Arosio, P., & Hersey, P.
Corresponding author
Hersey, Peter
Venue
International Journal of Cancer
Publisher
Wiley
Published
2001
Volume
92
Issue
6
Pages
843-850
ISSN
  • 0020-7136 (ISSN-L)
  • 1097-0215
OpenAlex
W2048961365
Cited by
70
References
59
Citations by year
2026: 2 · 2025: 1 · 2024: 4 · 2023: 3 · 2022: 1 · 2021: 4 · 2020: 4 · 2019: 1 · 2018: 4 · 2017: 1 · 2016: 1 · 2015: 6 · 2014: 1 · 2013: 4 · 2012: 6
FWCI
0.97
Type
journal article
Language
en
Open access
closed
Locations
  • International Journal of Cancer (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Research Information System (Università degli Studi di Brescia) (submittedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
Keywords
heavy chain ferritin, melanoma, immunosuppression, IL-10, lymphocyte mitogen response, anti-CD3 stimulation, interferon-gamma, cytokine production
MeSH terms
Antibodies, Monoclonal, Base Sequence, Dose-Response Relationship, Drug, Ferritins, Flow Cytometry, Humans, Immunosuppressive Agents, Interferon-gamma, Interleukin-2, Liver, Lymphocytes, Melanoma, Molecular Sequence Data, Myocardium, Plasmids, Precipitin Tests, Recombinant Proteins, Sequence Homology, Nucleic Acid, T-Lymphocytes, Tissue Distribution, Tumor Cells, Cultured, Blotting, Western, Interleukin-4, Interleukin-10, CD3 Complex, Sequence Analysis, DNA, DNA, Complementary, Dimerization

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