TY - JOUR ID - 6542 TI - The role of ISCOMATRIX bilayer composition to induce a cell mediated immunity and protection against leishmaniasis in BALB/c mice JO - Iranian Journal of Basic Medical Sciences JA - IJBMS LA - en SN - 2008-3866 AU - Mehravaran, Ahmad AU - Jaafari, Mahmoud Reza AU - Jalali, Seyed Amir AU - Khamesipour, Ali AU - Ranjbar, Reza AU - Hojatizade, Mansure AU - Badiee, Ali AD - Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran AD - Biotechnology Research Center, Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran AD - Immunology Department, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran AD - Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, Tehran, Iran AD - Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran Y1 - 2016 PY - 2016 VL - 19 IS - 2 SP - 178 EP - 186 KW - Immune response KW - ISCOMATRIX KW - Leishmania major KW - Transition temperature DO - 10.22038/ijbms.2016.6542 N2 - Objective(s):Development of new generation of vaccines against leishmaniasis is possible because long-term protection is usually seen after recovery from cutaneous leishmaniasis. ISCOMATRIX is particulate antigen delivery system composed of antigen, cholesterol, phospholipid and saponin. In this study, the role of ISCOMATRIX bilayer composition made by different phase transition temperature (Tc) to induce a type of immune response and protection against leishmaniasis was assessed. Materials and Methods:ISCOMATRIX formulations with different bilayer compositions consisting of EPC (Tc <0 ◦C), DMPC (Tc 23 ◦C) and DSPC (Tc 54 ◦C) were prepared. Different ISCOMATRIX formulations were mixed with soluble Leishmania antigens (SLA). BALB/c mice were immunized subcutaneously, three times with 2-week intervals.  As criteria for protection, footpads swelling, parasite burden, determination of IgG isotypes and the level of IFN-γ and IL-4 were assessed. Results: Although the groups of mice immunized with ISCOMATRIX DMPC or ISCOMATRIX DSPC showed the smallest footpad swelling and least parasite burden compared with the buffer group, the difference was not significant. Moreover, the highest level of IFN- γ and IL-4 was observed in the splenocytes of mice immunized with ISCOMATRIX DMPC or ISCOMATRIX DSPC, respectively. After challenge, the mice immunized with ISCOMATRIX DSPC showed the highest elevation of IgG, IgG1 and IgG2a antibodies (P<0.01) compared with control group. However, our results indicated that ISCOMATRIX EPC, DMPC or DSPC generated a mixed Th1/Th2 response that was not protective. Conclusion: Our results showed that the adjuvanticity of prepared ISCOMATRIX doesn’t influence with different phospholipids at least in our mice model. UR - https://ijbms.mums.ac.ir/article_6542.html L1 - https://ijbms.mums.ac.ir/article_6542_1dd12b3e8774326a110ea15e2e6af91b.pdf ER -