%0 Journal Article %T In vitro activity of Surfactant Protein A against Leishmania amazonensis %A Lugones %A Yuliannis %A Blanco %A Odalys %A Faure %A Roberto %A Monzote %A Lianet %J Biotecnolog£¿-a Aplicada %D 2012 %I Scientific Electronic Library Online %X 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 ic50 of 34.0 ¡À 3.1 and 33.6 ¡À 1.1 ¦Ìg/ml against promastigotes and amastigotes, respectively. it was moderately cytotoxic to peritoneal macrophages from balb/c mice, exhibiting an ic50 value of 172.0 ¡À 6.1 ¦Ìg/ml. this is the first report on the anti-leishmanial activity of sp-a. %K leishmania amazonensis %K pulmonary surfactant %K antimicrobial %K sp-a. %U http://scielo.sld.cu/scielo.php?script=sci_abstract&pid=S1027-28522012000100006&lng=en&nrm=iso&tlng=en