Related Experiment Video
Updated: Aug 13, 2026
Expansion of Human Peripheral Blood γδ T Cells using Zoledronate
Published on: September 9, 2011
[Th1-Th2 cytokine correlates (INF-gamma and IL-4) in splenectomized patients]
S Miniello1, E Jirillo, G Urgesi
1Istituto di Chirurgia Generale II, Università degli Studi di Bari.
Insights
Splenectomy can lead to long-term immunodepression due to T-lymphocyte dysfunction. This surgery may also increase allergy risks and immunoglobulin E (IgE) levels in some patients.
Area of Science:
- Immunology
- Surgical Outcomes
Context:
- Splenectomy, the surgical removal of the spleen, can impact immune function.
- Altered Th1-Th2 lymphocyte balance is implicated in post-splenectomy immunodepression.
Purpose:
- To investigate the link between splenectomy and immunodepression.
- To determine if altered Th1-Th2 lymphocyte balance contributes to post-splenectomy immune dysfunction.
Summary:
- This study assessed serum levels of Interferon-gamma (IFNγ) and Interleukin-4 (IL-4) in splenectomized patients.
- Results indicate significant immunodepression and T-lymphocyte functional damage persisting for years post-surgery.
- Elevated immunoglobulin E (IgE) levels and new-onset allergic symptoms were observed in 50% of patients, linked to Th2 lymphocyte activity.
Impact:
- Splenectomy may predispose patients to chronic immune impairment and allergic conditions.
- Findings highlight the spleen's role in maintaining immune homeostasis and regulating allergic responses.
- Suggests potential for targeted immune monitoring and management in post-splenectomy patients.
Abstract:
This paper attempts to explain if immunodepression in patients who had undergone a splenectomy may be due to altered balance between Th1-Th2 lymphocyte subpopulations, as shown in several studies on phagocyte and lymphocyte cells. This was achieved by dosing serum levels of IFNg, produced by Th1 lymphocytes and IL-4, produced by Th2 lymphocytes. Final analysis showed immunodepression in splenectomized patients but also emphasized that in 70% of all cases, there is functional damage of T-lymphocytes that continues for several years after the surgery involving both cellular and humoral immunity. Immunoglobulin dosage allows the increase of IgE to be seen in 50% of the splenectomized patients studied, all with allergic symptoms that appeared after the operation. The production of IgE is stimulated by Th2 lymphocytes. This leaves one to believe that splenectomy may favour the persistence of allergens in the blood, the appearance of allergic symptoms and the increase of IgE serum levels in patients with normal Th2 functioning and consequently, with normal or increased IL-4 serum levels.
