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[Th1 lymphocytes in patients with extrinsic asthma]
Daniel Aguilar Angeles1, Ernestina Serrano, Sergio Estrada Parra
1Servicio de Alergia e Inmunología Clínica del Hospital Juárez de México, SS. primo65@prodigy.net.mx
Revista Alergia Mexico (Tecamachalco, Puebla, Mexico : 1993)
|December 28, 2002
Summary
This study investigated the role of T-helper 1 (Th1) lymphocytes in Mexican patients with extrinsic asthma. Results indicate a shift towards Th1 immune responses in asthma patients, suggesting their active involvement in the disease.
Area of Science:
- Immunology
- Allergy Research
- Respiratory Medicine
Background:
- Bronchial asthma is a complex respiratory condition characterized by airway inflammation and immunological alterations.
- Extrinsic asthma, a common subtype, is often triggered by environmental allergens.
Purpose of the Study:
- To investigate the potential involvement of T-helper 1 (Th1) lymphocytes in the pathogenesis of extrinsic asthma.
- To assess Th1-related cytokine and receptor levels in Mexican patients with extrinsic asthma.
Main Methods:
- A cohort of 39 extrinsic asthma patients and 27 healthy controls from Mexico City were studied.
- Levels of Interleukin-2 (IL-2), IL-2 receptor, Interferon-gamma (IFN-γ), and Tumor Necrosis Factor-alpha (TNF-α) were measured.
Main Results:
- Patients with extrinsic asthma exhibited significantly higher levels of IL-2, its receptor, and IFN-γ compared to healthy controls.
- No significant differences in TNF-α levels were observed between asthma patients and controls.
Conclusions:
- The findings support an active shift from T-helper 2 (Th2) to Th1 immune responses in asthma.
- This study confirms the involvement of Th1 lymphocytes in the immunological profile of extrinsic asthma.