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Some immunological effects of penicillamine
Clinical and Experimental Immunology
|November 1, 1977
Summary
D-penicillamine (PA) affects lymphocyte transformation, inhibiting both T and B cell responses in vitro. This study explores its immunological effects, offering insights into potential therapeutic mechanisms for rheumatoid arthritis.
Area of Science:
- Immunology
- Pharmacology
Background:
- D-penicillamine (PA) is used in rheumatoid arthritis treatment.
- Understanding PA's immunological mechanisms is crucial for developing analogs.
Purpose of the Study:
- To investigate the immunological effects of D- and D,L-penicillamine (PA).
- To explore PA's mechanism of action in rheumatoid arthritis.
- To aid in developing synthetic PA analogs.
Main Methods:
- In vivo studies in mice assessing antibody development.
- In vitro studies using T lymphocytes and B lymphocytes.
- Assays included [3H]thymidine incorporation and amino acid uptake.
- Stimulation of lymphocytes used concanavalin A, phytohaemagglutinin, and lipopolysaccharide.
Main Results:
- D,L-PA did not inhibit haemagglutinating antibody development in vivo.
- D-PA inhibited T lymphocyte transformation and amino acid uptake in vitro at specific concentrations.
- D-PA also inhibited lipopolysaccharide-induced B lymphocyte transformation in vitro.
- No significant effects on cytotoxic T cell induction or function were observed.
Conclusions:
- D-PA exhibits immunomodulatory effects on both T and B lymphocytes in vitro.
- These findings warrant further investigation into PA's impact on lymphocyte transformation for analog development.