Related Experiment Videos
T and B cell function in psoriasis and psoriatic arthropathy
M T Zarrabeitia1, M C Fariñas, V Rodríguez-Valverde
1Servicio de Medicina Interna, Hospital Nacional Marqués de Valdecilla, Facultad de Medicina, Universidad de Cantabria, Santander, Spain.
Allergologia Et Immunopathologia
|May 1, 1989
Summary
Psoriasis and psoriatic arthritis involve immune system dysfunction, with patients showing elevated immunoglobulins and impaired B and T cell responses. These findings highlight immune system involvement in the pathogenesis of these conditions.
Area of Science:
- Immunology
- Dermatology
- Rheumatology
Background:
- The exact pathogenetic mechanisms of psoriasis and psoriatic arthropathy (PsA) remain incompletely understood.
- Previous research suggests a significant role for the immune system in the development of psoriasis and PsA.
Purpose of the Study:
- To investigate and analyze various aspects of B and T cell function in patients with psoriasis and PsA.
- To compare immune cell function in patients with a control group of healthy individuals.
Main Methods:
- Evaluated B cell function through serum immunoglobulin levels, enumeration of Ig-secreting cells (IgA, IgG, IgM), PWM-stimulated Ig secretion, and autologous mixed lymphocyte reaction.
- Assessed T cell function via response to PHA stimulation and its modulation by indomethacin (prostaglandin synthesis inhibitor).
Main Results:
- Patients exhibited significantly increased serum IgG and IgA levels compared to controls.
- A statistically significant decrease in B lymphocyte response to PWM stimulation was observed across all immunoglobulin types.
- T cell response to PHA was impaired in patients, with partial improvement noted after indomethacin treatment.
Conclusions:
- The study demonstrates immune system abnormalities, specifically in B and T cell function, in patients with psoriasis and PsA.
- Elevated immunoglobulin levels and altered lymphocyte responses suggest immune dysregulation contributes to the pathogenesis of these conditions.