Analogues of Marine Guanidine Alkaloids Are in Vitro Effective against Trypanosoma cruzi and Selectively Eliminate Leishmania (L.) infantum Intracellular Amastigotes
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In: Journal of natural products, Vol. 79, No. 9, 16.09.2016, p. 2202-2210.
Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Analogues of Marine Guanidine Alkaloids Are in Vitro Effective against Trypanosoma cruzi and Selectively Eliminate Leishmania (L.) infantum Intracellular Amastigotes
AU - Martins, Ligia F.
AU - Mesquita, Juliana T.
AU - Pinto, Erika G.
AU - Costa-Silva, Thais A.
AU - Borborema, Samantha E. T.
AU - Galisteo Junior, Andres J.
AU - Neves, Bruno J.
AU - Andrade, Carolina H.
AU - Bennett, Elliot
AU - Black, Gregory
AU - Harper, Philip
AU - Evans, Daniel
AU - Fituri, Hisham
AU - Leyland, John P.
AU - Martin, Claire
AU - Roberts, Terence
AU - Thornhill, Andrew J.
AU - Vale, Steven
AU - Howard-Jones, Andrew
AU - Thomas, Dafydd
AU - Williams, Harri L.
AU - Overman, Larry
AU - Berlinck, Roberto
AU - Murphy, Patrick
AU - Tempone, Andre
PY - 2016/9/16
Y1 - 2016/9/16
N2 - ABSTRACT: Synthetic analogues of marine sponge guanidinealkaloids showed in vitro antiparasitic activity againstLeishmania (L.) infantum and Trypanosoma cruzi. Guanidines10 and 11 presented the highest selectivity index when testedagainst Leishmania. The antiparasitic activity of 10 and 11 wasinvestigated in host cells and in parasites. Both compoundsinduced depolarization of mitochondrial membrane potential,upregulation of reactive oxygen species levels, and increasedplasma membrane permeability in Leishmania parasites.Immunomodulatory assays suggested an NO-independenteffect of guanidines 10 and 11 on macrophages. The samecompounds also promoted anti-inflammatory activity in L. (L.)infantum-infected macrophages cocultived with splenocytes,reducing the production of cytokines MCP-1 and IFN-γ.Guanidines 10 and 11 affect the bioenergetic metabolism of Leishmania, with selective elimination of parasites via a hostindependentmechanism.
AB - ABSTRACT: Synthetic analogues of marine sponge guanidinealkaloids showed in vitro antiparasitic activity againstLeishmania (L.) infantum and Trypanosoma cruzi. Guanidines10 and 11 presented the highest selectivity index when testedagainst Leishmania. The antiparasitic activity of 10 and 11 wasinvestigated in host cells and in parasites. Both compoundsinduced depolarization of mitochondrial membrane potential,upregulation of reactive oxygen species levels, and increasedplasma membrane permeability in Leishmania parasites.Immunomodulatory assays suggested an NO-independenteffect of guanidines 10 and 11 on macrophages. The samecompounds also promoted anti-inflammatory activity in L. (L.)infantum-infected macrophages cocultived with splenocytes,reducing the production of cytokines MCP-1 and IFN-γ.Guanidines 10 and 11 affect the bioenergetic metabolism of Leishmania, with selective elimination of parasites via a hostindependentmechanism.
U2 - 10.1021/acs.jnatprod.6b00256
DO - 10.1021/acs.jnatprod.6b00256
M3 - Article
VL - 79
SP - 2202
EP - 2210
JO - Journal of natural products
JF - Journal of natural products
SN - 0163-3864
IS - 9
ER -