Immunostimulant Activity of Hantap (Sterculia Coccinea Jack) Leaves Extract on Non-Specific and Spesific Immune Responses

Abstract

Objective: This study aims to determine the immunostimulant effect and the effective dose of hantap leaf ethanolic extract against non-specific and specific immune responses.
 Methods: The immunostimulant activity of the extract was tested by the carbon clearance method (non-specific response). The effect of the extract on delay-type hypersensitivity/DTH (cellular-specific response) was determined by the paw edema method. The number of leukocyte cells and the percentage of leukocyte cell types were also calculated. The antibody titer (humoral-specific response) test was carried out by the hemagglutination method.
 Results: The results of the non-specific immune response demonstrated that three doses of hantap leaf extract, when compared to the negative control, could accelerate the rate of carbon elimination and increase the phagocytosis index. Hantap leaf extract can provide an immunomodulatory effect by increasing the delayed-type hypersensitivity response by showing a greater volume of leg swelling than the negative control received CMC Na 0.5%, which was significantly different (p<0.05), increasing leukocyte count and leukocyte differential and increasing primary and secondary antibody titers. The effective dose of hantap leaves extract was 200 mg/kg body weight.
 Conclusion: This study proves that hantap leaf extract has an immunomodulatory effect that increases the immune system (immunostimulant)