Evidence map›Paper›PMID 17233885›Full record

ArticleBMC molecular biology2007

Antisense oligonucleotide-induced alternative splicing of the APOB mRNA generates a novel isoform of APOB.

Bernard Khoo, Xavier Roca, Shern L Chew, Adrian R Krainer

Open access · hybridAbstract read
In one paragraph

Article in BMC molecular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Splicing modulation therapy in the treatment of genetic diseases.The application of clinical genetics · 2014
    Review
  12. Article
  13. Exon skipping of hepatic APOB pre-mRNA with splice-switching oligonucleotides reduces LDL cholesterol in vivo.Molecular therapy : the journal of the American Society of Gene Therapy · 2013
    Article
  14. Article
  15. Review
  16. Article
  17. Therapeutic RNA manipulation in liver disease.Hepatology (Baltimore, Md.) · 2010
    Review
  18. Review
  19. Article
  20. Progress toward therapy with antisense-mediated splicing modulation.Current opinion in molecular therapeutics · 2009
    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

4 authors at 3 institutions in 2 countries.

Bernard KhooEndocrinology, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK. b.khoo@qmul.ac.uk
Xavier Roca
Shern L Chew
Adrian R Krainer
Cold Spring Harbor Laboratory · USQueen Mary University of London · GBWilliam Harvey Research Institute · GB

Funding

BIOCHEMISTRY OF PREMRNA SPLICINGR01GM042699 · NIGMS · COLD SPRING HARBOR LABORATORY · PI Adrian R Krainer · 1989 to 2026
$8.8M
Biochemistry of Pre-mRNA SplicingR37GM042699 · NIGMS · COLD SPRING HARBOR LABORATORY · PI KRAINER, ADRIAN R · 2012 to 2021
$7.7M
Medical Research Council G0802469NIGMS NIH HHS GM42699NIGMS NIH HHS R01 GM042699NIGMS NIH HHS R37 GM042699Wellcome Trust 071426/Z/03/Z
6 · The paper itself

Abstract

backgroundApolipoprotein B (APOB) is an integral part of the LDL, VLDL, IDL, Lp(a) and chylomicron lipoprotein particles. The APOB pre-mRNA consists of 29 constitutively-spliced exons. APOB exists as two natural isoforms: the full-length APOB100 isoform, assembled into LDL, VLDL, IDL and Lp(a) and secreted by the liver in humans; and the C-terminally truncated APOB48, assembled into chylomicrons and secreted by the intestine in humans. Down-regulation of APOB100 is a potential therapy to lower circulating LDL and cholesterol levels.

resultsWe investigated the ability of 2'O-methyl RNA antisense oligonucleotides (ASOs) to induce the skipping of exon 27 in endogenous APOB mRNA in HepG2 cells. These ASOs are directed towards the 5' and 3' splice-sites of exon 27, the branch-point sequence (BPS) of intron 26-27 and several predicted exonic splicing enhancers within exon 27. ASOs targeting either the 5' or 3' splice-site, in combination with the BPS, are the most effective. The splicing of other alternatively spliced genes are not influenced by these ASOs, suggesting that the effects seen are not due to non-specific changes in alternative splicing. The skip 27 mRNA is translated into a truncated isoform, APOB87SKIP27.

conclusionThe induction of APOB87SKIP27 expression in vivo should lead to decreased LDL and cholesterol levels, by analogy to patients with hypobetalipoproteinemia. As intestinal APOB mRNA editing and APOB48 expression rely on sequences within exon 26, exon 27 skipping should not affect APOB48 expression unlike other methods of down-regulating APOB100 expression which also down-regulate APOB48.

Indexed as

Alternative SplicingApolipoprotein B-48Apolipoproteins BCarcinoma, HepatocellularCell Line, TumorEnhancer Elements, GeneticExonsHumansIntronsLiver NeoplasmsNucleic Acid ConformationOligonucleotides, AntisenseProtein IsoformsRNA, MessengerTransfectionApolipoprotein B-48Apolipoproteins BOligonucleotides, AntisenseProtein IsoformsRNA, Messenger

Identifiers

PMID17233885
PMCPMC1784105
OpenAlexW1955101204

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.