期刊
CURRENT OPINION IN PHARMACOLOGY
卷 42, 期 -, 页码 46-54出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.coph.2018.06.003
关键词
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资金
- National Institutes of Health [R01 HL069630, HL130330]
- NATIONAL HEART, LUNG, AND BLOOD INSTITUTE [R01HL069630, R01HL130330] Funding Source: NIH RePORTER
Artemisinin-based combination therapies (ACTs) have substantially reduced worldwide malaria burden and deaths. But malaria parasites have become resistant to artemisinins. Prior studies suggested two different molecular pathways of artemisinin-resistance. Here we unify recent findings into a single model, where elevation of a lipid, phosphatidylinositol-3-phosphate (PI3P) results in vesicle expansion that increases the engagement with the unfolded protein response (UPR). Vesicle expansion (rather than increasing individual genetic determinants of the UPR) efficiently induces artemisinin resistance likely by promoting 'proteostasis' (protein translation coupled to proper protein folding and vesicular remodeling) to mitigate artemisinin-induced proteopathy (death from global abnormal protein-toxicity). Vesicular amplification engages the host red cell, suggesting that artemisinin resistant malaria may also persist by taking advantage of host niches and escaping the immune response.
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