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Updated: Aug 9, 2026
Multiplexed Fluorescent Immunohistochemical Staining, Imaging, and Analysis in Histological Samples of Lymphoma
Published on: January 9, 2019
[Immunohistochemical localization and serum testing for ferritin in malignant histiocytosis]
Insights
Ferritin is consistently found in malignant histiocytosis (MH) tumor cells, with higher levels in well-differentiated cells. This suggests ferritin is a key tumor antigen in MH, explaining elevated serum ferritin levels in patients.
Area of Science:
- Oncology
- Immunohistochemistry
- Biochemistry
Context:
- Malignant histiocytosis (MH) is a rare neoplastic proliferation of histiocytes.
- Ferritin, an iron-storage protein, has been implicated in various cancers but its role in MH is not well-defined.
Purpose:
- To investigate the expression and localization of ferritin in malignant histiocytosis.
- To determine if ferritin levels correlate with tumor differentiation and serum ferritin concentrations in MH patients.
Summary:
- Immunohistochemical staining for ferritin was performed on 36 MH cases, revealing 100% positivity.
- Ferritin was localized within the cytoplasm of tumor cells.
- Image analysis indicated significantly higher ferritin levels in well-differentiated histiocytes compared to atypical histiocytes (P < 0.01).
- Ten MH patients exhibited markedly elevated serum ferritin concentrations (mean 1482.3 ng/ml) compared to normal controls.
Impact:
- These findings identify ferritin as a tumor-associated antigen in malignant histiocytosis.
- The synthesis and release of ferritin by MH tumor cells are proposed as the primary cause for hyperferritinemia in affected patients.
- This research may facilitate the development of novel diagnostic or therapeutic strategies targeting ferritin in MH.
Abstract:
Localization of ferritin with immunohistochemical staining was carried out in thirty six cases of malignant histiocytosis (MH). The positivity rate for ferritin was 100 per cent. Ferritin was found to exist in the cytoplasm of the tumor cells. Image analysis showed that ferritin level in the well-differentiated histiocytes (1.2314) was higher than that in the atypical histiocytes (0.7181) (P < 0.01). Ten MH patients showed surprising high serum ferritin concentration (1482.3 ng/ml) than that in normal. Our data suggest that ferritin is the tumor associated antigen in MH. The synthesis and release of ferritin by MH tumor cells is the important cause for the high concentration of serum ferritin in patients.
