Immunization with Leishmania major Exogenous Antigens Protects Susceptible BALB/c Mice against Challenge Infection with L. major

Immunization with Leishmania major exogenous antigens protects susceptible BALB/c mice against challenge infection with L. major.

The potential of Leishmania major culture-derived soluble exogenous antigens (SEAgs) to induce a protective response in susceptible BALB/c mice challenged with L. major promastigotes was investigated. Groups of BALB/c mice were immunized with L. major SEAgs alone, L. major SEAgs coadministered with either alum (aluminum hydroxide gel) or recombinant murine interleukin-12 (rmIL-12), L. major SEA...

Sandfly maxadilan exacerbates infection with Leishmania major and vaccinating against it protects against L. major infection.

Bloodfeeding arthropods transmit many of the world's most serious infectious diseases. Leishmania are transmitted to their mammalian hosts when an infected sandfly probes in the skin for a bloodmeal and injects the parasite mixed with its saliva. Arthropod saliva contains molecules that affect blood flow and modulate the immune response of the host. Indeed, sandfly saliva markedly enhances the ...

Bivalent DNA Vaccination with Genes Encoding Leishmania major Cysteine Proteinases Type I and II Protects Mice Against Infectious Challenge

Vaccinations with live-attenuated Leishmania major promastigotes and challenge infection with L. major in BALB/c mice.

BACKGROUND Currently there is no vaccine available in use against any form of leishmaniases worldwide. OBJECTIVE To assess potential of a live-attenuated Leishmania major promastigates, for protection against a challenge infection with L. major in BALB/c mice. DESIGN A laboratory based study. SETTING Study was carried out at Centre for Biotechnology Research and Development, Kenya Medical...

Subcutaneous immunization against Leishmania major - infection in mice: efficacy of formalin-killed promastigotes combined with adjuvants.

Formalin-killed promastigotes (FKP) of Leishmania major, in combination with Montanide ISA 720 (MISA), BCG or alum were used in vaccination of an inbred murine model against cutaneous leishmaniasis (CL). Significant and specific increases in anti-FKP IgG responses were detected for both alum-FKP and BCG-FKP compared to MISA-FKP (p < 0.001). Significant increases in splenic lymphocyte recall pro...