Large-scale production of Plasmodium falciparum gametocytes for malaria drug discovery
This protocol for the induction and isolation of Plasmodium falciparum gametocytes combines seven parameters that have been shown to facilitate the optimum induction of gametocytogenesis in vitro to obtain highly synchronous gametocyte stages on a large scale. The tightly controlled induction of Pla...
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Published in | Nature protocols Vol. 11; no. 5; pp. 976 - 992 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
London
Nature Publishing Group UK
01.05.2016
Nature Publishing Group |
Subjects | |
Online Access | Get full text |
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Summary: | This protocol for the induction and isolation of
Plasmodium falciparum
gametocytes combines seven parameters that have been shown to facilitate the optimum induction of gametocytogenesis
in vitro
to obtain highly synchronous gametocyte stages on a large scale.
The tightly controlled induction of
Plasmodium falciparum
gametocytes in large-scale culture is a fundamental requirement for malaria drug discovery applications including, but not limited to, high-throughput screening. This protocol uses magnetic separation for isolation of hemozoin-containing parasites in order to (i) increase parasitemia, (ii) decrease hematocrit and (iii) introduce higher levels of young red blood cells in a culture simultaneously within 2–4 h. These parameters, along with red blood cell lysis products that are generated through schizont rupture, are highly relevant for enabling optimum induction of gametocytogenesis
in vitro
. No other previously published protocols have applied this particular approach for parasite isolation and maximization of fresh red blood cells before inducing gametocytogenesis, which is essential for obtaining highly synchronous gametocyte classical stages on a large scale. In summary, 500–1,000 million stage IV gametocytes can be obtained within 16 d from an initial 10 ml of asexual blood-stage culture. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1754-2189 1750-2799 |
DOI: | 10.1038/nprot.2016.056 |