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Published on: May 10, 2017
The Relevance of Circulating Interleukin-5 (IL-5) in Lymphoproliferative Disorders
D A Aladle1, M A Salem1, L A Mahmoud1
1a Hematology Unit, Clinical Pathology Department, Faculty of Medicine , Mansoura University , Egypt.
Interleukin-5 (IL-5) plays a key role in lymphoproliferative disorders (LPDs), influencing disease characteristics and eosinophilia. Elevated IL-5 levels correlate with increased lymphoma grade and tumor burden in patients.
Area of Science:
- Immunology
- Hematology
- Oncology
Background:
- Cytokines regulate neoplastic processes in lymphoproliferative disorders (LPDs).
- The specific role of interleukin-5 (IL-5) in LPD phenotype, progression, and eosinophilia requires clarification.
Purpose of the Study:
- To investigate the role of IL-5 in LPDs.
- To determine IL-5's association with disease phenotype, progression, and eosinophilia in LPD patients.
Main Methods:
- Serum IL-5 concentrations were measured in 49 untreated LPD patients (NHL, CLL, HD) and 14 controls.
- Patients were categorized into Non-Hodgkin Lymphoma (NHL), Chronic Lymphocytic Leukemia (CLL), and Hodgkin Disease (HD) groups.
- Statistical analyses correlated IL-5 levels with clinical parameters like lymphocytic counts, lymphoma grade, and eosinophilia.
Main Results:
- Serum IL-5 levels were statistically significant in LPDs, with the highest concentrations observed in CLL patients.
- In NHL, rising IL-5 levels correlated with increasing lymphoma grade.
- IL-5 concentration showed significant correlations with absolute eosinophilia, absolute lymphocytosis, bone marrow lymphocytosis, and bone marrow infiltration.
Conclusions:
- IL-5 is crucial in generating the neoplastic phenotype of LPDs.
- IL-5 may be responsible for paraneoplastic features, such as eosinophilia, observed in LPDs.
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