The onset of infections by Leishmania parasites mainly caused by amastigote growth inside the macrophages. One of the important properties of lesion-derived amastigote is thought to be the attachment of various host proteins including immunoglobulins on the surface of amastigote. In this study, the presence of immunoglobulins on the surface of lesion-derived amastigotes was detected by Western ...

BACKGROUND Research in our laboratory has previously shown that immune-mediated transmission blocking may be applied to Leishmania infections and that the LPG molecule and anti-LPG monoclonal antibodies was found to be an excellent candidate against L. major infections. OBJECTIVE To test the effect of monoclonal antibodies (MABs) raised against different species of Leishmania for their abilit...

OBJECTIVES To assess the effect of monoclonal antibodies (MABS) raised against L. major derived LPG on L. major development in vitro and in its natural vector P. duboscqi. Also determine whether LPG molecule and the sand fly the gut lysates have shared epitopes. DESIGN A laboratory based study. SETTING Colony bred P. duboscqi sand flies and all other experiments were done under laboratory c...

The present report describes a real-time PCR-based procedure to reliably determine the quantity of Leishmania amastigotes in relation to the amount of host tissue in histological skin sections from canine and equine cases of cutaneous leishmaniasis. The novel diagnostic Leishmania-PCR has a detection limit of <0.02 amastigotes per μg tissue, which corresponds well to the detection limit of immu...

Surfactant protein A (SP-A) is a hydrophilic pulmonary protein belonging to the collectin family, involved in lung homeostasis, the regulation of host defenses and inflammation. The present study addresses the activity of SP-A against promastigotes and amastigotes of Leishmania amazonensis and its cytotoxicity for host cells. SP-A exhibited similar activity against both parasite forms, with an ...

Bis-alkylquinolines 1-6 were synthetized via Williamson reaction between 8-hydroxyquinaldine with different 1,ω-dihaloalkanes. Structures of all the products were elucidated by spectroscopic analysis. Cytotoxic and antileishmanial activities of synthesized compounds were determinated on U-937 cells and L. (V) panamensis amastigotes, respectively. Compound 5, 1,9-bis[(2-methylquinolin-8-yl)oxy]n...

Since L. herreri was first described in 1979 [l], no further isolates have been identified and some doubts have been expressed as to the classification of this parasite. The 16 original strains of L. herrrri were isolated from sloths (Bradypus griseus and Choloepus hoffmanni) and sandflies (Lutzomyiu trupidoi, Lu. ylephiletor and Lu. shannoni) in Costa Rica. These parasites were classified with...