Evaluation of the Effects of a New Drug on Brain Leukocyte Infiltration in an Experimental Model of Autoimmune Encephalomyelitis
| Autor: | A. Mangas, R. Covenas, D. Bodet, M. Dabadie, G. Glaize, M. Geffard |
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| Rok vydání: | 2006 |
| Předmět: |
Drug
Pathology medicine.medical_specialty endocrine system diseases Chemistry Experimental model Multiple sclerosis media_common.quotation_subject Experimental autoimmune encephalomyelitis Pharmaceutical Science Blood–brain barrier medicine.disease medicine.disease_cause Autoimmunity medicine.anatomical_structure Drug Discovery Immunology medicine Molecular Medicine Immunohistochemistry Infiltration (medical) media_common |
| Zdroj: | Letters in Drug Design & Discovery. 3:138-148 |
| ISSN: | 1570-1808 |
| DOI: | 10.2174/157018006776286943 |
| Popis: | Experimental Autoimmune Encephalomyelitis (EAE) was induced for the evaluation of a new drug candidate (GEM-SP) for multiple sclerosis. Using immunocytochemical techniques with a pan-leukocyte marker, "anti-CD 45", differential leukocyte infiltration was compared in different experimental groups: 1) EAE-immunized rats treated with GEM-SP; 2) EAE-immunized rats treated with NaCl; 3) EAE-immunized rats treated with free constituents (not linked to inert carrier protein) and the inert carrier protein of GEM-SP. The results were conclusive: a very high degree of infiltration was observed in groups 2 and 3. Compared with these, group 1 showed a very poor leukocyte infiltration. Thus, the effect of GEM-SP against leukocyte infiltration was very strong, suggesting a decrease of the blood brain barrier permeability. Moreover, the same composition of GEM-SP (non-linked) was poorly active against leukocyte infiltration. The effect of GEM-SP therefore on the blood brain barrier appears to be very effective, rendering it less permeable to leukocyte infiltration and decreasing leukocyte infiltration per se and/or it is also possible that GEM-SP could play an immunomodulator role. The present results suggest GEM-SP as a new potential drug candidate for the treatment of multiple sclerosis |
| Databáze: | OpenAIRE |
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