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An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
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An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis

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Increased circulating transforming growth factor beta1 in a patient with giant hepatic hemangioma: possible

N Ito1, S Kawata, H Tsushima

  • 1Second Department of Internal Medicine, Osaka University Medical School, Suita, Japan.

Hepatology (Baltimore, Md.)
|January 1, 1997
PubMed

Insights

A large liver tumor (hepatic hemangioma) caused immune system problems by releasing high levels of transforming growth factor beta1 (TGF-beta1). Surgery removed the tumor, restoring normal immune function and lowering TGF-beta1 levels.

Area of Science:

  • Immunology
  • Hepatology
  • Oncology

Background:

  • Immune deficiency can arise from various medical conditions.
  • Hepatic hemangiomas are benign liver tumors that can grow significantly.
  • Transforming growth factor beta1 (TGF-beta1) is a known immunosuppressive cytokine.

Purpose of the Study:

  • To investigate the relationship between a giant hepatic hemangioma and impaired immune function.
  • To determine the role of transforming growth factor beta1 (TGF-beta1) in the observed immunosuppression.

Main Methods:

  • Patient assessment of peripheral lymphocyte count, immunoglobulin levels, and skin test reactivity.
  • Measurement of plasma transforming growth factor beta1 (TGF-beta1) concentrations.
  • Analysis of TGF-beta1 gene expression in tumor and normal liver tissue using Northern blot.

Main Results:

  • The patient exhibited decreased lymphocytes, low immunoglobulin G, and a negative skin test, indicating immune impairment.
  • Markedly elevated plasma TGF-beta1 levels (113 ng/mL) were detected in the patient.
  • Post-surgery, TGF-beta1 levels normalized, and immune function was restored.
  • Northern blot analysis revealed TGF-beta1 gene overexpression in hemangioma tissue, absent in normal liver tissue.

Conclusions:

  • Giant hepatic hemangioma can cause acquired immunodeficiency.
  • Elevated plasma TGF-beta1, originating from the hemangioma, is implicated in the immune dysfunction.
  • Surgical resection of the hemangioma effectively resolves the associated immunosuppression.

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