An anti-inflammatory lectin from Luetzelburgia auriculata seeds inhibits adhesion and rolling of leukocytes and modulates histamine and PGE2 action in acute inflammation models
| Autor: | Liezelotte R. Bomfim, Raquel S.B. Oliveira, Fernando Q. Cunha, Márcio V. Ramos, Nylane M.N. Alencar, Jozi G. Figueiredo, I. J. M. Cavalcante, Mayara P. V. Matos, J. V. S. Nunes |
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| Rok vydání: | 2009 |
| Předmět: |
Neutrophils
medicine.drug_class Immunology Histamine Antagonists Inflammation Peritonitis Pharmacology Carrageenan Nitric Oxide Dinoprostone Anti-inflammatory Nitric oxide chemistry.chemical_compound Affinity chromatography In vivo Cell Adhesion Leukocytes medicine Animals Edema Leukocyte Rolling Rats Wistar Peroxidase biology Anti-Inflammatory Agents Non-Steroidal Galactose Lectin Fabaceae Rats Chemotaxis Leukocyte Biochemistry chemistry Seeds biology.protein Electrophoresis Polyacrylamide Gel Indicators and Reagents Plant Lectins medicine.symptom Intravital microscopy Histamine |
| Zdroj: | Inflammation Research. 59:245-254 |
| ISSN: | 1420-908X 1023-3830 |
| Popis: | To study and characterize the in vivo effect of the lectin from Luetzelburgia auriculata seed on acute inflammation models.The lectin was purified from the crude saline extract by affinity chromatography on a guar-gum matrix. Native, heat-treated, and digested lectin was evaluated for anti-inflammatory activity by using peritonitis and paw edema models. The anti-inflammatory activity was characterized by intravital microscopy, nitric oxide production, and myeloperoxidase activity.The lectin exhibited anti-inflammatory activity (2 mg/kg) on both models, reducing local myeloperoxidase activity. Galactose or heat treatment (100 degrees C, 10 min) reduced anti-inflammatory action. Anti-inflammation involves the inhibition of adhesion and rolling of leukocytes along with augmentation of nitric oxide in serum. The lectin inhibited the edematogenic effect of histamine and prostaglandins (PGE2) but did not alter the chemoattractant effect of IL-8.The results indicate that this lectin is a potent anti-inflammatory molecule. Its effects engage diverse modulatory events. |
| Databáze: | OpenAIRE |
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