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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 101, No. 8, 2006, pp. 923-924
Bioline Code: oc06151
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 101, No. 8, 2006, pp. 923-924

 en Leishmania ( Viannia) lainsoni check for this species in other resources : occurrence of intracellular promastigote forms in vivo and in vitro
José R Corrêa & Maurilio J Soares

Abstract

Experimental chronic (45-day-old) skin lesion in hamster hind foot induced by Leishmania ( Viannia) lainsoni check for this species in other resources infection showed the presence of promastigote forms in the tissue, inside parasitophorous vacuoles, as assessed by transmission electron microscopy. Experimental in vitro interaction (24 and 48 h) between Leishmania (V.) lainsoni and J774-G8 macrophage cells also demonstrated the same profile. This morphological aspect is unusual, since in this parasite genus only amastigote forms have been described as the resistant and obligate intracellular forms.

Keywords
Leishmania - lesion - macrophage - ultrastructure

 
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