Evidence map›Paper›PMID 19917601›Full record

ArticleThe Journal of biological chemistry2010

Proinsulin C-peptide regulates ribosomal RNA expression.

Emma Lindahl, Ulrika Nyman, Farasat Zaman, Carina Palmberg, Anna Cascante, Jawed Shafqat, Masaharu Takigawa, Lars Sävendahl, Hans Jörnvall, Bertrand Joseph

Erratum issuedAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Human Eb peptide: not just a by-product of pre-pro-IGF1b processing?Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme · 2013
    Article
  6. Review
  7. Article
  8. Article
  9. Proinflammatory effects of C-Peptide in different tissues.International journal of inflammation · 2012
    Article
  10. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Emma LindahlDepartment of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden.
Ulrika Nyman
Farasat Zaman
Carina Palmberg
Anna Cascante
Jawed Shafqat
Masaharu Takigawa
Lars Sävendahl
Hans Jörnvall
Bertrand Joseph

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proinsulin C-peptide is internalized into cells, but a function of its intracellular localization has not been established. We now demonstrate that, upon cellular entry, C-peptide is localized to the nucleoli, where it promotes transcription of genes encoding for ribosomal RNA. We find that C-peptide binds to histones and enhances acetylation of lysine residue 16 of histone H4 at the promoter region of genes for ribosomal RNA. In agreement with synchrony of ribosomal RNA synthesis and cell proliferation, we show that C-peptide stimulates proliferation in chondrocytes and HEK-293 cells. This regulation of ribosomal RNA provides a mechanism by which C-peptide can exert transcriptional effects and implies that the peptide has growth factor activity.

Indexed as

Gene Expression Regulation3T3 CellsAnimalsCell CycleCell LineCell NucleolusCell ProliferationChondrocytesC-PeptideEpigenesis, GeneticHistonesHumansMiceRNA, RibosomalTranscription, GeneticC-PeptideHistonesRNA, Ribosomal

Identifiers

PMID19917601
PMCPMC2823421

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.