Reversal of T-cell unresponsiveness through serine-esterase inhibitors mediated enhanced lymphokine induced microbicidal activities in kala-azar. |
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Authors: | S Bimal S L Lal C S Lal U K Singha R Saran A B Sen V K Sahay |
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Institution: | Division of Immunology, Rajendra Memorial Research Institute of Medical Sciences, Patna, India. |
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Abstract: | After presenting processed glycoprotein of Leishmania donovani to T-cell, macrophage seeks the help of a panel of T-cells lymphokines to transform from a state that sustains intra cellular replication of parasite to an effector state for destructing parasites. But esterase and trypsin of macrophage membrane prevent T-cells to release MIF. Role of soya-bean trypsin inhibitor (STI) has been exposed in the present study with a view to alter esterase functional behaviour of macrophage for control of T-cell activation and also, if T-cells once made responsive to antigen by STI do alter macrophage response to T-cells or not. Results establish STI as potent effector molecule, which can serve as an adjuvant to candidate T-cell epitope and synthetic peptide for development of anti-Kala-azar vaccine protocol in future. |
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