PMID- 23159058 OWN - NLM STAT- MEDLINE DCOM- 20130515 LR - 20220408 IS - 1934-6069 (Electronic) IS - 1931-3128 (Linking) VI - 12 IP - 5 DP - 2012 Nov 15 TI - Metabolic adaptation to tissue iron overload confers tolerance to malaria. PG - 693-704 LID - S1931-3128(12)00357-5 [pii] LID - 10.1016/j.chom.2012.10.011 [doi] AB - Disease tolerance is a defense strategy that limits the fitness costs of infection irrespectively of pathogen burden. While restricting iron (Fe) availability to pathogens is perceived as a host defense strategy, the resulting tissue Fe overload can be cytotoxic and promote tissue damage to exacerbate disease severity. Examining this interplay during malaria, the disease caused by Plasmodium infection, we find that expression of the Fe sequestering protein ferritin H chain (FtH) in mice, and ferritin in humans, is associated with reduced tissue damage irrespectively of pathogen burden. FtH protection relies on its ferroxidase activity, which prevents labile Fe from sustaining proapoptotic c-Jun N-terminal kinase (JNK) activation. FtH expression is inhibited by JNK activation, promoting tissue Fe overload, tissue damage, and malaria severity. Mimicking FtH's antioxidant effect or inhibiting JNK activation pharmacologically confers therapeutic tolerance to malaria in mice. Thus, FtH provides metabolic adaptation to tissue Fe overload, conferring tolerance to malaria. CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Gozzelino, Raffaella AU - Gozzelino R AD - Instituto Gulbenkian de Ciencia, 2780-156 Oeiras, Portugal. FAU - Andrade, Bruno Bezerril AU - Andrade BB FAU - Larsen, Rasmus AU - Larsen R FAU - Luz, Nivea F AU - Luz NF FAU - Vanoaica, Liviu AU - Vanoaica L FAU - Seixas, Elsa AU - Seixas E FAU - Coutinho, Antonio AU - Coutinho A FAU - Cardoso, Silvia AU - Cardoso S FAU - Rebelo, Sofia AU - Rebelo S FAU - Poli, Maura AU - Poli M FAU - Barral-Netto, Manoel AU - Barral-Netto M FAU - Darshan, Deepak AU - Darshan D FAU - Kuhn, Lukas C AU - Kuhn LC FAU - Soares, Miguel P AU - Soares MP LA - eng GR - Intramural NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Intramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Cell Host Microbe JT - Cell host & microbe JID - 101302316 RN - 0 (Antioxidants) RN - 9007-73-2 (Ferritins) RN - 9013-31-4 (Apoferritins) RN - E1UOL152H7 (Iron) RN - EC 1.16.3.1 (Ceruloplasmin) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) SB - IM MH - Animals MH - Antioxidants/metabolism MH - Apoferritins/*metabolism MH - Cells, Cultured MH - Ceruloplasmin/metabolism MH - Cytoprotection MH - Enzyme Activation MH - Ferritins/*metabolism MH - Hepatocytes/metabolism MH - Host-Parasite Interactions MH - Humans MH - Iron/metabolism MH - Iron Overload/*metabolism MH - JNK Mitogen-Activated Protein Kinases/metabolism MH - Malaria/*metabolism/*parasitology MH - Mice MH - Mice, Inbred C57BL MH - Plasmodium berghei/physiology MH - Plasmodium chabaudi/*immunology/*physiology MH - Plasmodium vivax/physiology EDAT- 2012/11/20 06:00 MHDA- 2013/05/17 06:00 CRDT- 2012/11/20 06:00 PHST- 2012/04/20 00:00 [received] PHST- 2012/08/28 00:00 [revised] PHST- 2012/10/08 00:00 [accepted] PHST- 2012/11/20 06:00 [entrez] PHST- 2012/11/20 06:00 [pubmed] PHST- 2013/05/17 06:00 [medline] AID - S1931-3128(12)00357-5 [pii] AID - 10.1016/j.chom.2012.10.011 [doi] PST - ppublish SO - Cell Host Microbe. 2012 Nov 15;12(5):693-704. doi: 10.1016/j.chom.2012.10.011.