IMMUNOMODULATORY ACTIVITY OF INDIGOFERA TINCTORIA LEAF EXTRACT ON IN VITRO MACROPHAGE RESPONSES AND LYMPHOCYTE PROLIFERATION
Journal Title: International Journal of Pharmacy and Pharmaceutical Sciences - Year 2016, Vol 8, Issue 7
Abstract
Objective: In this study the effects of ethanolic and aqueous extracts of Indigofera tinctoria were investigated on the functions of peritoneal macrophages and peripheral blood lymphocytes isolated from Wistar rats through in vitro studies.Methods: Macrophage functions were determined through Nitric oxide (NO) estimation, Arginase production, lysosomal, phagocytic activities and analysis of proinflammatory cytokines (TNF-α and IL-1β) production. The lymphocytes proliferation was analyzed by MTT assay.Results: The results indicated that both ethanolic and aqueous extracts of I. tinctoria were enhanced nitric oxide (NO) production at 50 µg/ml whereas it suppressed the production of arginase at 100 µg/ml by the macrophage. Moreover lysosomal and phagocytic activity of the macrophage was enhanced by the ethanolic and aqueous extracts at a dose of 100 µg/ml. The extracts also enhanced the production of pro-inflammatory cytokines by the macrophages. With the lymphocytes, the proliferation was significantly increased by ethanolic and aqueous extracts in the EC50 value of 32.27 µg/ml and 49.06 µg/ml after 48 h incubation.Conclusion: Collectively the results demonstrated that both extracts of I. tinctoria enhanced innate as well as adaptive immune response and proved the immunostimulating potential of the plant I. tinctoria.Keywords: Indigofera tinctoria, Immunomodulation, Macrophage, Lymphocyte proliferation
Authors and Affiliations
Madakkannu Boothapandi, Ravichandran Ramanibai
Keywords
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