ArticleExperimental parasitology2010
Trypanosoma brucei: reduction of GPI-phospholipase C protein during differentiation is dependent on replication of newly transformed cells.
Article in Experimental parasitology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 4 citations in OpenAlex.
- Novel Effects of Lapatinib Revealed in the African Trypanosome by Using Hypothesis-Generating Proteomics and Chemical Biology Strategies.Antimicrobial agents and chemotherapy · 2017Article
- Determinants of GPI-PLC localisation to the flagellum and access to GPI-anchored substrates in trypanosomes.PLoS pathogens · 2013Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The protozoan parasite Trypanosoma brucei lives in the bloodstream of vertebrates or in a tsetse fly. Expression of a GPI-phospholipase C polypeptide (GPI-PLCp) in the parasite is restricted to the bloodstream form. Events controlling the amount of GPI-PLCp expressed during differentiation are not completely understood. Our metabolic "pulse-chase" analysis reveals that GPI-PLCp is stable in bloodstream form. However, during differentiation of bloodstream to insect stage (procyclic) T. brucei, translation GPI-PLC mRNA ceases within 8h of initiating transformation. GPI-PLCp is not lost precipitously from newly transformed procyclic trypanosomes. Nascent procyclics contain 400-fold more GPI-PLCp than established insect stage T. brucei. Reduction of GPI-PLCp in early-stage procyclics is linked to parasite replication. Sixteen cell divisions are required to reduce the amount of GPI-PLCp in newly differentiated procyclics to levels present in the established procyclic. GPI-PLCp is retained in strains of T. brucei that fail to replicate after differentiation of the bloodstream to the procyclic form. Thus, at least two factors control levels of GPI-PLCp during differentiation of bloodstream T. brucei; (i) repression of GPI-PLC mRNA translation, and (ii) sustained replication of newly transformed procyclic T. brucei. These studies illustrate the importance of repeated cell divisions in controlling the steady-state amount of GPI-PLCp during differentiation of the African trypanosome.
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