Title
Dynamic control of hepatic Plasmodium numbers by hepcidin despite elevated liver iron during iron supplementation
Date Issued
01 January 2016
Access level
open access
Resource Type
journal article
Author(s)
Ferrer P.
Roy C.
Sullivan D.
Escuela de Salud Pública Bloomberg de Johns Hopkins
Publisher(s)
Elsevier Masson SAS
Abstract
Treatment of iron deficiency anemia in malaria endemic areas is complicated as iron supplementation increases malaria risk while malaria decreases iron absorption. Here we measured the influence of hepcidin expression and non-heme iron during iron supplementation on hepatic Plasmodium berghei numbers in anemic and non-anemic mice. Despite elevated hepatic non-heme iron on the high iron diet, elevated hepcidin expression is associated with less parasite bioavailable iron and lower hepatic parasite loads in anemic, iron deficient mice after both two and six weeks of supplementation. A marginal trend to lower parasite hepatic numbers was seen in non-anemic, iron replete mice. In a transgenic model of severe anemia, mice with a deletion in Sec15l1, which reportedly have normal liver iron and normal hepcidin expression, there were no changes in liver parasite numbers or blood stage numbers or outcome in the lethal Plasmodium yoelii model. In summary during iron supplementation the lower hepatic malaria numbers are regulated more by hepcidin than the absolute level of non-heme hepatic iron.
Start page
48
End page
56
Volume
18
Issue
1
Language
English
OCDE Knowledge area
Epidemiología Hematología
Scopus EID
2-s2.0-84953836783
PubMed ID
Source
Microbes and Infection
ISSN of the container
12864579
Source funding
National Institute of Child Health and Human Development
Sponsor(s)
DJS and CNR were supported by the National Institute of Child Health and Human Development under award number U01HD061241 . We thank Jorge Alfonso Ferrer Sotomayor for assistance with scheme figure design.
Sources of information: Directorio de Producción Científica Scopus