Related Experiment Video
Updated: Aug 18, 2026

In vivo Imaging of Transgenic Leishmania Parasites in a Live Host
Published on: July 27, 2010
[Mechanisms of action of levamisole, stimulating cellular immune responses]
Since LMS possesses a thiazole and an imidazole (IMZ) moiety, we compared in vivo activities of LMS and of IMZ on immune responses of mice, IMZ was unable to increase the number of direct or indirect plaque-forming spleen cells to sheep red blood cells (SRBC), the magnitude of delayed hypersensitivity to SRBC, and did not evoke the production of a serum factor which passively transferred the immune stimulation. LMS was repeatedly active in these three tests. In vivo activities of LMS appear to be linked to its sulphur moiety able to recruit and activate a new population of T cells, through serum mediators.
Since LMS possesses a thiazole and an imidazole (IMZ) moiety, we compared in vivo activities of LMS and of IMZ on immune responses of mice, IMZ was unable to increase the number of direct or indirect plaque-forming spleen cells to sheep red blood cells (SRBC), the magnitude of delayed hypersensitivity to SRBC, and did not evoke the production of a serum factor which passively transferred the immune stimulation. LMS was repeatedly active in these three tests. In vivo activities of LMS appear to be linked to its sulphur moiety able to recruit and activate a new population of T cells, through serum mediators.
More Related Videos
Related Concept Videos
Cell-mediated Immune Responses
Cytotoxic T Cells-mediated Immune Response
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological Memory
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature is...
Immune Response Against Viral Pathogens
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Microorganisms in Medicine and Therapeutics
Anthelminthic Agents

