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Local suppression of contact hypersensitivity in mice by a monofunctional psoralen plus UVA radiation. 1989

J Alcalay, and S E Ullrich, and M L Kripke

Monofunctional psoralens, plus UVA radiation are not erythemogenic and are less mutagenic than bifunctional psoralens plus UVA radiation. Thus, they have received considerable attention in recent years as potential therapeutic agents for various skin diseases. The purpose of this study was to examine the immunologic side effects following treatment of mice with a monofunctional psoralen plus UVA radiation. We report that angelicin plus UVA radiation suppressed the induction of contact hypersensitivity to dinitrofluorobenzene. This decreased immune response was associated with the presence of splenic suppressor cells that transferred suppression to normal recipients. Treatment with angelicin and UVA radiation also decreased the number of Thy-1+ and Ia+ dendritic epidermal cells in the treated site. We conclude that although this monofunctional psoralen is not phototoxic, it has immunosuppressive activity in mice.

UI MeSH Term Description Entries
D007165 Immunosuppression Therapy Deliberate prevention or diminution of the host's immune response. It may be nonspecific as in the administration of immunosuppressive agents (drugs or radiation) or by lymphocyte depletion or may be specific as in desensitization or the simultaneous administration of antigen and immunosuppressive drugs. Antirejection Therapy,Immunosuppression,Immunosuppressive Therapy,Anti-Rejection Therapy,Therapy, Anti-Rejection,Therapy, Antirejection,Anti Rejection Therapy,Anti-Rejection Therapies,Antirejection Therapies,Immunosuppression Therapies,Immunosuppressions,Immunosuppressive Therapies,Therapies, Immunosuppression,Therapies, Immunosuppressive,Therapy, Immunosuppression,Therapy, Immunosuppressive
D007364 Intercalating Agents Agents that are capable of inserting themselves between the successive bases in DNA, thus kinking, uncoiling or otherwise deforming it and therefore preventing its proper functioning. They are used in the study of DNA. Intercalating Agent,Intercalating Ligand,Intercalative Compound,Intercalator,Intercalators,Intercalating Ligands,Intercalative Compounds,Agent, Intercalating,Agents, Intercalating,Compound, Intercalative,Compounds, Intercalative,Ligand, Intercalating,Ligands, Intercalating
D008809 Mice, Inbred C3H An inbred strain of mouse that is used as a general purpose strain in a wide variety of RESEARCH areas including CANCER; INFECTIOUS DISEASES; sensorineural, and cardiovascular biology research. Mice, C3H,Mouse, C3H,Mouse, Inbred C3H,C3H Mice,C3H Mice, Inbred,C3H Mouse,C3H Mouse, Inbred,Inbred C3H Mice,Inbred C3H Mouse
D011564 Furocoumarins Polycyclic compounds consisting of a furan ring fused with coumarin. They commonly occur in PLANTS, especially UMBELLIFERAE and RUTACEAE, as well as PSORALEA. Furanocoumarin,Furanocoumarins,Furocoumarin,Psoralens,Angelicins
D011701 PUVA Therapy Photochemotherapy using PSORALENS as the photosensitizing agent and ultraviolet light type A (UVA). Psoralen Ultraviolet A Therapy,Therapy, PUVA,PUVA Therapies,Therapies, PUVA
D003877 Dermatitis, Contact A type of acute or chronic skin reaction in which sensitivity is manifested by reactivity to materials or substances coming in contact with the skin. It may involve allergic or non-allergic mechanisms. Contact Dermatitis,Dermatitis Venenata,Eczema, Contact,Hypersensitivity, Contact,Sensitivity, Contact,Contact Dermatitides,Contact Eczema,Contact Hypersensitivities,Contact Hypersensitivity,Contact Sensitivities,Contact Sensitivity,Dermatitides, Contact,Hypersensitivities, Contact,Sensitivities, Contact
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000941 Antigens Substances that are recognized by the immune system and induce an immune reaction. Antigen
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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