Evidence map›Paper›PMID 16442620›Full record

ArticleDevelopmental and comparative immunology2006

In vivo and in vitro knockdown of FREP2 gene expression in the snail Biomphalaria glabrata using RNA interference.

Yiguo Jiang, Eric S Loker, Si-Ming Zhang

Abstract read
In one paragraph

Article in Developmental and comparative immunology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
–field-weighted citation impact
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

43 citing papers in PubMed.

  1. Review
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  15. Gene drives for schistosomiasis transmission control.PLoS neglected tropical diseases · 2019
    Review
  16. Article
  17. Article
  18. Article
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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

3 authors.

Yiguo JiangDepartment of Biology, University of New Mexico, Albuquerque, NM 87131, USA.
Eric S Loker
Si-Ming Zhang

Funding

UNM COBRE: THEORETICAL STUDY OF SPECIFICITY OF RNA SILENCING MECHANISMP20RR018754 · NCRR · UNIVERSITY OF NEW MEXICO · PI LOKER, ERIC SAMUEL · 2003 to 2011
$16.7M
NCRR NIH HHS P20 RR018754NCRR NIH HHS RR-1P20RR18754
6 · The paper itself

Abstract

RNA interference (RNAi) is reported here for the first time for Biomphalaria glabrata, the snail intermediate host for the human parasite Schistosoma mansoni. The fibrinogen-related protein 2 (FREP2) gene, normally expressed at increased levels following exposure to digenetic trematode parasites, such as S. mansoni or Echinostoma paraensei, was targeted for knockdown. Double-stranded RNA (dsRNA) corresponding to specific regions of the FREP2 gene was introduced into snails by direct injection into the hemolymph, 2 days prior to exposure to trematodes, or added to co-cultures of B. glabrata embryonic (Bge) cells and E. paraensei sporocysts. After introduction of FREP2 dsRNA, expression levels of FREP2 were significantly reduced, to 20-30% of control values. In addition, we were able to disrupt expression of the house-keeping myoglobin gene, further confirming the feasibility of RNAi for B. glabrata. Cross-reactivity in RNAi has not been observed either among four FREP gene subfamilies or between FREP2 and myoglobin. Establishment of RNAi techniques in B. glabrata provides an important tool for clarifying the function of genes believed to play a role in host-parasite interactions, specifically between B. glabrata and its trematode parasites, including S. mansoni.

Indexed as

RNA InterferenceAnimalsAnimals, Genetically ModifiedBiomphalariaCells, CulturedGene ExpressionImmunoglobulinsLectinsRNA, Double-StrandedFREP2 protein, Biomphalaria glabrataImmunoglobulinsLectinsRNA, Double-Stranded

Identifiers

PMID16442620
PMCPMC3641767

What OpenQuestion holds

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Registered trials

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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.