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A new immunomodulator, FR-900483.
T Shibata1, O Nakayama, Y Tsurumi
1Exploratory Research Laboratories, Fujisawa Pharmaceutical Co., Ltd., Ibaraki, Japan.
The Journal of Antibiotics
|March 1, 1988
Summary
FR-900483, a novel immunoactive substance from Nectria lucida, restores normal lymphocyte proliferation and antibody production in immunosuppressed models. This compound shows potential for immune system modulation.
Area of Science:
- Immunology
- Mycology
- Pharmacology
Background:
- Immune suppression can be caused by various factors, leading to impaired immune responses.
- Identifying novel compounds that can modulate the immune system is crucial for therapeutic development.
Purpose of the Study:
- To investigate the immunoactive properties of FR-900483, a new substance isolated from Nectria lucida.
- To determine if FR-900483 can counteract immune suppression.
Main Methods:
- FR-900483 was isolated from the fungus Nectria lucida F-4490.
- Lymphocyte proliferation assays were performed using concanavalin A stimulation.
- Immune response was assessed in immunosuppressed mice by measuring antibody production against sheep red blood cells.
Main Results:
- FR-900483 demonstrated the ability to restore concanavalin A-stimulated lymphocyte proliferation that was suppressed by an immunosuppressive factor.
- Administration of FR-900483 successfully restored the antibody production capacity in immunosuppressed mice.
Conclusions:
- FR-900483 exhibits significant immunoactive properties.
- This novel compound holds potential as an immunomodulatory agent to combat immune suppression.