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In this review, we examine the uptake and usage of iron by trypanosomatids and discuss how modulation of host iron metabolism plays an important role in the protective response. Trypanosomatids require iron for crucial processes including DNA replication, antioxidant defence, mitochondrial respiration, synthesis of the modified base J and, in African trypanosomes, the alternative oxidase. The source of iron varies between species. Bloodstream-form African trypanosomes acquire iron from their host by uptake of transferrin, and<jats:italic>Leishmania amazonensis<\/jats:italic>expresses a ZIP family cation transporter in the plasma membrane. In other trypanosomatids, iron uptake has been poorly characterized. Iron-withholding responses by the host can be a major determinant of disease outcome. Their role in trypanosomatid infections is becoming apparent. For example, the cytosolic sequestration properties of NRAMP1, confer resistance against leishmaniasis. Conversely, cytoplasmic sequestration of iron may be favourable rather than detrimental to<jats:italic>Trypanosoma cruzi<\/jats:italic>. The central role of iron in both parasite metabolism and the host response is attracting interest as a possible point of therapeutic intervention.<\/jats:p>","DOI":"10.1017\/s0031182009991880","type":"journal-article","created":{"date-parts":[[2010,2,15]],"date-time":"2010-02-15T04:37:11Z","timestamp":1266208631000},"page":"899-917","source":"Crossref","is-referenced-by-count":85,"title":["Iron metabolism in trypanosomatids, and its crucial role in infection"],"prefix":"10.1017","volume":"137","author":[{"given":"M. C.","family":"TAYLOR","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. 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