Abstract
The role of the two main serum opsonins (IgG and C3b) in the induction of polymorphonuclear leukocyte chemiluminescence was studied in a group of psoriatic patients. Chemiluminescence was stimulated with zymosan opsonized by fresh plasma (IgG- and C3b-dependent chemiluminescence) or by complement-depleted plasma (IgG-dependent chemiluminescence). While C3b-dependent chemiluminescence was similar in patients with chronic or active forms of psoriasis, IgG-dependent chemiluminescence was significantly increased in patients with active disease. However, FcR-III expression, evaluated by means of flow cytofluorimetry, was similar in the different groups of patients studied. The discrepancy between Fc-receptor (CD16) expression and IgG-dependent chemiluminescence is, therefore, indicative of modifications that occur in psoriatic neutrophils that do not involve FcIII-receptor expression.
Lingua originale | English |
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pagine (da-a) | 89-91 |
Numero di pagine | 3 |
Rivista | Experimental Dermatology |
Volume | 2 |
Stato di pubblicazione | Pubblicato - 1993 |
Keywords
- Adult
- Aged
- Complement C3b
- Female
- Humans
- Immunoglobulin Fc Fragments
- Immunoglobulin G
- Luminescent Measurements
- Male
- Middle Aged
- Neutrophils
- Opsonin Proteins
- Psoriasis
- Receptors, Complement 3b
- Receptors, IgG
- Respiratory Burst
- Zymosan