Evidence map›Paper›PMID 21658241›Full record

ArticleVirology journal2011

Structural mutants of dengue virus 2 transmembrane domains exhibit host-range phenotype.

Katherine M Smith, Kavita Nanda, Carla J Spears, Mariana Ribeiro, Ricardo Vancini, Amanda Piper, Gwynneth S Thomas, Malcolm E Thomas, Dennis T Brown, Raquel Hernandez

Open access · goldAbstract read
In one paragraph

Article in Virology journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 10% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 1 country.

Katherine M SmithArbovax, Incorporated, Raleigh, North Carolina, USA. ksmith@arbovax.com
Kavita Nanda
Carla J Spears
Mariana Ribeiro
Ricardo Vancini
Amanda Piper
Gwynneth S Thomas
Malcolm E Thomas
Dennis T Brown
Raquel Hernandez
North Carolina State University · USAlphaVax (United States) · USNovavax (United States) · USUniversity Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are over 700 known arboviruses and at least 80 immunologically distinct types that cause disease in humans. Arboviruses are transmitted among vertebrates by biting insects, chiefly mosquitoes and ticks. These viruses are widely distributed throughout the world, depending on the presence of appropriate hosts (birds, horses, domestic animals, humans) and vectors. Mosquito-borne arboviruses present some of the most important examples of emerging and resurgent diseases of global significance.

methodsA strategy has been developed by which host-range mutants of Dengue virus can be constructed by generating deletions in the transmembrane domain (TMD) of the E glycoprotein. The host-range mutants produced and selected favored growth in the insect hosts. Mouse trials were conducted to determine if these mutants could initiate an immune response in an in vivo system.

resultsThe DV2 E protein TMD defined as amino acids 452SWTMKILIGVIITWIG467 was found to contain specific residues which were required for the production of this host-range phenotype. Deletion mutants were found to be stable in vitro for 4 sequential passages in both host cell lines. The host-range mutants elicited neutralizing antibody above that seen for wild-type virus in mice and warrant further testing in primates as potential vaccine candidates.

conclusionsNovel host-range mutants of DV2 were created that have preferential growth in insect cells and impaired infectivity in mammalian cells. This method for creating live, attenuated viral mutants that generate safe and effective immunity may be applied to many other insect-borne viral diseases for which no current effective therapies exist.

Indexed as

Host SpecificityAedesAmino Acid SequenceAnimalsAntibodies, NeutralizingAntibodies, ViralCell LineDengue VirusMiceMice, Inbred BALB CModels, MolecularMolecular Sequence DataMutant ProteinsSequence DeletionViral Envelope ProteinsAntibodies, NeutralizingAntibodies, ViralE-glycoprotein, Dengue virus type 2Mutant ProteinsViral Envelope Proteins

Identifiers

PMID21658241
PMCPMC3128863
OpenAlexW2102549494

What OpenQuestion holds

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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.