Effective Adjunctive Therapy by an Innate Defense Regulatory Peptide in a Preclinical Model of Severe Malaria

被引:66
作者
Achtman, Ariel H. [1 ,2 ]
Pilat, Sandra [1 ,2 ]
Law, Charity W. [1 ,2 ]
Lynn, David J. [3 ,4 ,5 ]
Janot, Laure [3 ]
Mayer, Matt L. [3 ]
Ma, Shuhua [3 ]
Kindrachuk, Jason [3 ]
Finlay, B. Brett [6 ]
Brinkman, Fiona S. L. [4 ]
Smyth, Gordon K. [1 ,7 ]
Hancock, Robert E. W. [3 ]
Schofield, Louis [1 ,2 ]
机构
[1] Walter & Eliza Hall Inst Med Res, Parkville, Vic 3052, Australia
[2] Univ Melbourne, Dept Med Biol, Melbourne, Vic 3010, Australia
[3] Univ British Columbia, Ctr Microbial Dis & Immun Res, Vancouver, BC V6T 1Z4, Canada
[4] Simon Fraser Univ, Dept Mol Biol & Biochem, Burnaby, BC V5A 1S6, Canada
[5] AGRIC, Anim & Biosci Res Dept, Dunsany, Meath, Ireland
[6] Univ British Columbia, Michael Smith Labs, Vancouver, BC V6T 1Z4, Canada
[7] Univ Melbourne, Dept Math & Stat, Melbourne, Vic 3010, Australia
基金
英国医学研究理事会;
关键词
TUMOR-NECROSIS-FACTOR; PLASMODIUM-FALCIPARUM MALARIA; CEREBRAL MALARIA; MONOCLONAL-ANTIBODY; IFN-GAMMA; T-CELLS; CHILDREN; INTERFERON; EXPRESSION; RESPONSES;
D O I
10.1126/scitranslmed.3003515
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Case fatality rates for severe malaria remain high even in the best clinical settings because antimalarial drugs act against the parasite without alleviating life-threatening inflammation. We assessed the potential for host-directed therapy of severe malaria of a new class of anti-inflammatory drugs, the innate defense regulator (IDR) peptides, based on host defense peptides. The Plasmodium berghei ANKA model of experimental cerebral malaria was adapted to use as a preclinical screen by combining late-stage intervention in established infections with advanced bioinformatic analysis of early transcriptional changes in co-regulated gene sets. Coadministration of IDR-1018 with standard first-line antimalarials increased survival of infected mice while down-regulating key inflammatory networks associated with fatality. Thus, IDR peptides provided host-directed adjunctive therapy for severe disease in combination with antimalarial treatment.
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页数:10
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