Evidence map›Paper›PMID 26660425›Full record

ArticleBlood2016

Circular RNA enrichment in platelets is a signature of transcriptome degradation.

Abd A Alhasan, Osagie G Izuogu, Haya H Al-Balool, Jannetta S Steyn, Amanda Evans, Maria Colzani, Cedric Ghevaert, Joanne C Mountford, Lamin Marenah, David J Elliott and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 131 papers.

0numbers the graph read from it
0cells of the map it votes in
131citing papers in PubMed
10.4field-weighted citation impact, top 1% 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

131 citing papers in PubMed, 230 citations in OpenAlex.

  1. Trial
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  4. Article
  5. Article
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  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Circular RNAs in Blood and Its Clinical Relevance.Advances in experimental medicine and biology · 2025
    Review
  13. Review
  14. Circular RNAs in Brain Physiology and Neurologic Diseases.Advances in experimental medicine and biology · 2025
    Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Circular RNA in cancer.Nature reviews. Cancer · 2024
    Review

71 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 2 countries.

Abd A AlhasanInstitute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom;
Osagie G IzuoguInstitute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom;ORCID http://orcid.org/0000-0003-3116-2558
Haya H Al-BaloolKuwait Medical Genetics Centre, Al-Sabah Medical Area, Kuwait City, Kuwait;
Jannetta S SteynInstitute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom; Bioinformatics Support Unit, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom;ORCID http://orcid.org/0000-0002-0231-9897
Amanda EvansNational Health Service Blood and Transplant, Department of Haematology, University of Cambridge, Cambridge, United Kingdom;
Maria ColzaniNational Health Service Blood and Transplant, Department of Haematology, University of Cambridge, Cambridge, United Kingdom;
Cedric GhevaertNational Health Service Blood and Transplant, Department of Haematology, University of Cambridge, Cambridge, United Kingdom;
Joanne C MountfordInstitute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom; and Tissue and Cellular Therapies, Research Development & Innovation, Scottish National Blood Transfusion Service, Glasgow, United Kingdom.ORCID http://orcid.org/0000-0003-2142-6572
Lamin MarenahTissue and Cellular Therapies, Research Development & Innovation, Scottish National Blood Transfusion Service, Glasgow, United Kingdom.
David J ElliottInstitute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom;
Mauro Santibanez-KorefInstitute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom;
Michael S JacksonInstitute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom;
Newcastle University · GBNational Health Service · GBKuwait Institute for Medical Specialization · KWScottish National Blood Transfusion Service · GBUniversity of Glasgow · GB

Funding

Biotechnology and Biological Sciences Research Council BB/J014516/1British Heart Foundation FS/09/039/27788Wellcome TrustWellcome Trust WT089225MAWellcome Trust WT089225/Z/09/Z
6 · The paper itself

Abstract

In platelets, splicing and translation occur in the absence of a nucleus. However, the integrity and stability of mRNAs derived from megakaryocyte progenitor cells remain poorly quantified on a transcriptome-wide level. As circular RNAs (circRNAs) are resistant to degradation by exonucleases, their abundance relative to linear RNAs can be used as a surrogate marker for mRNA stability in the absence of transcription. Here we show that circRNAs are enriched in human platelets 17- to 188-fold relative to nucleated tissues and 14- to 26-fold relative to samples digested with RNAse R to selectively remove linear RNA. We compare RNAseq read depths inside and outside circRNAs to provide in silico evidence of transcript circularity, show that exons within circRNAs are enriched on average 12.7 times in platelets relative to nucleated tissues and identify 3162 genes significantly enriched for circRNAs, including some where all RNAseq reads appear to be derived from circular molecules. We also confirm that this is a feature of other anucleate cells through transcriptome sequencing of mature erythrocytes, demonstrate that circRNAs are not enriched in cultured megakaryocytes, and demonstrate that linear RNAs decay more rapidly than circRNAs in platelet preparations. Collectively, these results suggest that circulating platelets have lost >90% of their progenitor mRNAs and that translation in platelets occurs against the backdrop of a highly degraded transcriptome. Finally, we find that transcripts previously classified as products of reverse transcriptase template switching are both enriched in platelets and resistant to decay, countering the recent suggestion that up to 50% of rearranged RNAs are artifacts.

Indexed as

Blood PlateletsExonsExoribonucleasesHumansMegakaryocytesReal-Time Polymerase Chain ReactionReproducibility of ResultsRNARNA, CircularRNA StabilityTranscriptomeExoribonucleasesribonuclease RRNARNA, Circular

Identifiers

PMID26660425
PMCPMC4797142
OpenAlexW2314489585

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.