Evidence map›Paper›PMID 33004954›Full record

ArticleScientific reports2020

New insecticide screening platforms indicate that Mitochondrial Complex I inhibitors are susceptible to cross-resistance by mosquito P450s that metabolise pyrethroids.

Rosemary S Lees, Hanafy M Ismail, Rhiannon A E Logan, David Malone, Rachel Davies, Amalia Anthousi, Adriana Adolfi, Gareth J Lycett, Mark J I Paine

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.6field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 35 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Rosemary S Lees *Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK.
Hanafy M Ismail *Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK.
Rhiannon A E LoganVector Biology Department, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK.
David MaloneInnovative Vector Control Consortium, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK.
Rachel DaviesVector Biology Department, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK.
Amalia AnthousiVector Biology Department, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK.
Adriana AdolfiVector Biology Department, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK.
Gareth J LycettVector Biology Department, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK. gareth.lycett@lstmed.ac.uk.
Mark J I PaineVector Biology Department, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK. mark.paine@lstmed.ac.uk.
Liverpool School of Tropical Medicine · GBInnovative Vector Control Consortium · GB

Funding

Biotechnology and Biological Sciences Research Council BB/F021933/1Medical Research Council MC_PC_16052
6 · The paper itself

Abstract

Fenazaquin, pyridaben, tolfenpyrad and fenpyroximate are Complex I inhibitors offering a new mode of action for insecticidal malaria vector control. However, extended exposure to pyrethroid based products such as long-lasting insecticidal nets (LLINs) has created mosquito populations that are largely pyrethroid-resistant, often with elevated levels of P450s that can metabolise and neutralise diverse substrates. To assess cross-resistance liabilities of the Complex I inhibitors, we profiled their susceptibility to metabolism by P450s associated with pyrethroid resistance in Anopheles gambiae (CYPs 6M2, 6P3, 6P4, 6P5, 9J5, 9K1, 6Z2) and An. funestus (CYP6P9a). All compounds were highly susceptible. Transgenic An. gambiae overexpressing CYP6M2 or CYP6P3 showed reduced mortality when exposed to fenpyroximate and tolfenpyrad. Mortality from fenpyroximate was also reduced in pyrethroid-resistant strains of An. gambiae (VK7 2014 and Tiassalé 13) and An. funestus (FUMOZ-R). P450 inhibitor piperonyl butoxide (PBO) significantly enhanced the efficacy of fenpyroximate and tolfenpyrad, fully restoring mortality in fenpyroximate-exposed FUMOZ-R. Overall, results suggest that in vivo and in vitro assays are a useful guide in the development of new vector control products, and that the Complex I inhibitors tested are susceptible to metabolic cross-resistance and may lack efficacy in controlling pyrethroid resistant mosquitoes.

Indexed as

Insecticide ResistanceAnimalsAnimals, Genetically ModifiedAnophelesChromatography, High Pressure LiquidCytochrome P-450 Enzyme SystemElectron Transport Complex IFemaleInsecticidesPyrethrinsCytochrome P-450 Enzyme SystemElectron Transport Complex IInsecticidesPyrethrins

Identifiers

PMID33004954
PMCPMC7530702
OpenAlexW3089827279

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.