Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25512427
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Antimicrob+Agents+Chemother
2015 ; 59
(3
): 1418-26
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Antimalarial iron chelator FBS0701 blocks transmission by Plasmodium falciparum
gametocyte activation inhibition
#MMPMID25512427
Ferrer P
; Vega-Rodriguez J
; Tripathi AK
; Jacobs-Lorena M
; Sullivan DJ Jr
Antimicrob Agents Chemother
2015[Mar]; 59
(3
): 1418-26
PMID25512427
show ga
Reducing the transmission of the malarial parasite by Anopheles mosquitoes using
drugs or vaccines remains a main focus in the efforts to control malaria. Iron
chelators have been studied as potential antimalarial drugs due to their
activities against different stages of the parasite. The iron chelator FBS0701
affects the development of Plasmodium falciparum early gametocytes and lowers
blood-stage parasitemia. Here, we tested the effect of FBS0701 on stage V
gametocyte infectivity for mosquitoes. The incubation of stage V gametocytes for
up to 3 days with increasing concentrations of FBS0701 resulted in a significant
dose-related reduction in mosquito infectivity, as measured by the numbers of
oocysts per mosquito. The reduction in mosquito infectivity was due to the
inhibition of male and female gametocyte activation. The preincubation of FBS0701
with ferric chloride restored gametocyte infectivity, showing that the inhibitory
effect of FBS0701 was quenched by iron. Deferoxamine, another iron chelator, also
reduced gametocyte infectivity but to a lesser extent. Finally, the simultaneous
administration of drug and gametocytes to mosquitoes without previous incubation
did not significantly reduce the numbers of oocysts. These results show the
importance of gametocyte iron metabolism as a potential target for new
transmission-blocking strategies.