Evidence map›Paper›PMID 17938220›Full record

ArticleInfection and immunity2008

Essential role of chitinase in the development of the filarial nematode Acanthocheilonema viteae.

Babila Tachu, Smitha Pillai, Richard Lucius, Thomas Pogonka

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

22 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Structure-based virtual screening of highly potent inhibitors of the nematode chitinaseJournal of enzyme inhibition and medicinal chemistry · 2021
    Article
  6. Article
  7. Chitotriosidase: a marker and modulator of lung disease.European respiratory review : an official journal of the European Respiratory Society · 2020
    Review
  8. Article
  9. Does 24bp Duplication of HumanJournal of clinical and diagnostic research : JCDR · 2016
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Repositioning of an existing drug for the neglected tropical disease Onchocerciasis.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  20. Article
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

4 authors at 1 institution in 1 country.

Babila TachuDepartment of Molecular Parasitology, Humboldt University Berlin, Philippstrasse 13, 10115 Berlin, Germany.
Smitha Pillai
Richard Lucius
Thomas Pogonka
Humboldt-Universität zu Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chitinases of pathogens have been proposed as potential targets of vaccines or specific inhibitors. We studied the genomic organization, transcript levels, developmental expression, and biological function of chitinases in the rodent filarial nematode Acanthocheilonema viteae, a model organism for human-pathogenic filarial worms. Characterization of nine genomic clones from an A. viteae phage library and Southern blot experiments revealed the existence of three different chitinase genes, two of which could theoretically yield functional transcripts. The deduced proteins of these genes had the common modular organization of family 18 chitinases. Northern blot experiments and rapid amplification of cDNA ends-PCR with adult worms and larval stages showed that only one gene is expressed, with high variation in transcript levels, as determined by real-time PCR. Chitinase transcript levels were lowest in the late male stage 4 larva (L4) and peaked in the stage 3 larva (L3), which was corroborated by Western blotting. RNA interference (RNAi) experiments showed that treatment of L3 and adult female worms with double-stranded RNA of chitinase inhibited molting of L3 worms and hatching of microfilariae. RNAi also led to the death of 50% of female worms, revealing the essential role of chitinase in the life cycle of filarial nematodes.

Indexed as

AnimalsChitinasesDipetalonemaFemaleGene Expression RegulationGenes, HelminthGenome, HelminthHelminth ProteinsLife Cycle StagesMaleMolecular Sequence DataRNA InterferenceChitinasesHelminth Proteins

Identifiers

PMID17938220
PMCPMC2223640
OpenAlexW2156430180

What OpenQuestion holds

Textmetadata
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.