Evidence map›Paper›PMID 19368703›Full record

ArticleRetrovirology2009

Analysis of transcribed human endogenous retrovirus W env loci clarifies the origin of multiple sclerosis-associated retrovirus env sequences.

Georg Laufer, Jens Mayer, Benedikt F Mueller, Nikolaus Mueller-Lantzsch, Klemens Ruprecht

Open access · goldAbstract read
In one paragraph

Article in Retrovirology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
7.2field-weighted citation impact, top 3% 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

50 citing papers in PubMed, 1 synthesis or guideline pooled it, 87 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Mucosal Immunity and the Gut-Microbiota-Brain-Axis in Neuroimmune Disease.International journal of molecular sciences · 2022
    Review
  10. Review
  11. Article
  12. Article
  13. HSV-1 and Endogenous Retroviruses as Risk Factors in Demyelination.International journal of molecular sciences · 2021
    Review
  14. Review
  15. Endogenous Retroviruses in Nervous System Disorders.Pharmaceuticals (Basel, Switzerland) · 2021
    Review
  16. Article
  17. Review
  18. On the origin of a pathogenic HERV-W envelope protein present in multiple sclerosis lesions.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  19. Reply to Ruprecht and Mayer: Unearthing genomic fossils in the pathogenesis of multiple sclerosis.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  20. Review
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

5 authors at 1 institution in 1 country.

Georg LauferInstitute of Virology, Saarland University Hospital, Homburg, Germany. G_1982@web.de
Jens Mayer
Benedikt F Mueller
Nikolaus Mueller-Lantzsch
Klemens Ruprecht
Saarland University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMultiple sclerosis-associated retrovirus (MSRV) RNA sequences have been detected in patients with multiple sclerosis (MS) and are related to the multi-copy human endogenous retrovirus family type W (HERV-W). Only one HERV-W locus (ERVWE1) codes for a complete HERV-W Env protein (Syncytin-1). Syncytin-1 and the putative MSRV Env protein have been involved in the pathogenesis of MS. The origin of MSRV and its precise relation to HERV-W were hitherto unknown.

resultsBy mapping HERV-W env cDNA sequences (n = 332) from peripheral blood mononuclear cells of patients with MS and healthy controls onto individual genomic HERV-W env elements, we identified seven transcribed HERV-W env loci in these cells, including ERVWE1. Transcriptional activity of individual HERV-W env elements did not significantly differ between patients with MS and controls. Remarkably, almost 30% of HERV-W env cDNAs were recombined sequences that most likely arose in vitro between transcripts from different HERV-W env elements. Re-analysis of published MSRV env sequences revealed that all of them can be explained as originating from genomic HERV-W env loci or recombinations among them. In particular, a MSRV env clone previously used for the generation of monoclonal antibody 6A2B2, detecting an antigen in MS brain lesions, appears to be derived from a HERV-W env locus on chromosome Xq22.3. This locus harbors a long open reading frame for an N-terminally truncated HERV-W Env protein.

conclusionOur data clarify the origin of MSRV env sequences, have important implications for the status of MSRV, and open the possibility that a protein encoded by a HERV-W env element on chromosome Xq22.3 may be expressed in MS brain lesions.

Indexed as

Endogenous RetrovirusesRecombination, GeneticTranscription, GeneticAdultBase SequenceCloning, MolecularDNA, ComplementaryFemaleGene Products, envHumansLeukocytes, MononuclearMaleMultiple SclerosisSequence AlignmentDNA, ComplementaryGene Products, env

Identifiers

PMID19368703
PMCPMC2672075
OpenAlexW2129435423

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.