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Contenuto archiviato il 2024-06-18

Targeting the Leishmania kinome for the development of novel anti-parasitic strategies

Obiettivo

Visceral leishmaniasis is caused by the protozoan parasites Leishmania donovani and Leishmania infantum and is a potentially fatal disease in endemic areas around the world. During the infectious cycle, Leishmania alternate between the insect promastigote stage and the vertebrate aflagellate amastigote stage that proliferates inside infected host macrophages provoking the pathology of the disease. This consortium uses a highly interdisciplinary approach to reveal Leishmania signaling molecules associated with amastigote virulence, with the major aim to exploit parasite-specific pathways for anti-leishmanial drug development. We use innovative drug screening concepts not applied previously on parasitic systems. We will utilize visual high-content screening to discover compounds capable to kill intracellular Leishmania amastigotes without deteriorating the host cell. This phenotype-based strategy relies on fluorescent parasites and macrophages as read-outs and will allow simultaneous assessment of anti-leishmanial activity and host cell toxicity under physiological conditions. We will apply a target-based strategy utilizing recombinant Leishmania protein kinases for inhibitor identification and structure-guided drug design. The identification of appropriate target kinases, with only limited homology to their mammalian counterparts will rely on in silico analysis by applying novel bioinformatic tools developed by consortium members, and in vitro assay based on their phospho-transferase activity towards recombinant Leishmania phospho-proteins. The major objectives of this proposal are (i) to screen small molecule and peptide libraries for hit compounds with leishmanicidal activity using phenotype- and target-based strategies, (ii) to identify anti-parasitic lead compounds and assess their pharmacokinetic profiles using cell-culture and experimental infection models for leishmaniasis, and (iii) to initiate lead optimization by structure-based drug design.

Invito a presentare proposte

FP7-HEALTH-2007-B
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Coordinatore

INSTITUT PASTEUR
Contributo UE
€ 823 120,00
Indirizzo
RUE DU DOCTEUR ROUX 25-28
75724 Paris
Francia

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Regione
Ile-de-France Ile-de-France Paris
Tipo di attività
Research Organisations
Contatto amministrativo
Nadia Khelef (Dr.)
Collegamenti
Costo totale
Nessun dato

Partecipanti (12)