ArticleHormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme2013
Human Eb peptide: not just a by-product of pre-pro-IGF1b processing?
Article in Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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.
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.
Who cites it
12 citing papers in PubMed, 19 citations in OpenAlex.
- Insulin-like Growth Factor 1 (IGF1) and Its Isoforms: Insights into the Mechanisms of Endometrial Cancer.Cancers · 2025Review
- Lower muscle protein synthesis in humans with obesity concurrent with lower expression of muscle IGF1 splice variants.Obesity (Silver Spring, Md.) · 2023Article
- The lysosomal trafficking regulator is necessary for normal wound healing.Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society · 2022Article
- Role of Alternatively Spliced Messenger RNA (mRNA) Isoforms of the Insulin-Like Growth Factor 1 (IGF1) in Selected Human Tumors.International journal of molecular sciences · 2020Review
- The intrinsically disordered E-domains regulate the IGF-1 prohormones stability, subcellular localisation and secretion.Scientific reports · 2018Article
- Human IGF-I propeptide A promotes articular chondrocyte biosynthesis and employs glycosylation-dependent heparin binding.Biochimica et biophysica acta. General subjects · 2018Article
- Article
- IGF axis and other factors in HPV-related and HPV-unrelated carcinogenesis (review).Oncology reports · 2014Review
- Optimizing IGF-I for skeletal muscle therapeutics.Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society · 2014Review
- IGF expression in HPV-related and HPV-unrelated human cancer cells.Oncology reports · 2014Article
- The complexity of the IGF1 gene splicing, posttranslational modification and bioactivity.Molecular medicine (Cambridge, Mass.) · 2014Review
- New Modulators for IGF-I Activity within IGF-I Processing Products.Frontiers in endocrinology · 2013Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
Several physiological activities have been assigned to E-peptides derived from pre-pro-insulin-like growth factor (IGF1) processing; however, the whole range of the E-peptides' functions is still unknown. The objective of this study was to investigate human Eb peptide (hEb) in terms of its bioactivity, cellular localization, and intracellular trafficking using human cancer cells. Human Eb fused with red fluorescence protein (RFP) or green fluorescence protein (GFP) localizes strongly to nucleoli and to a lesser extent to nuclei of HeLa and U2-OS cells. Mutagenesis of hEb nucleolus localization sequence (NoLS) leads to its partial delocalization from nuclei and nucleoli to cytoplasm of transfected cells. Thus, NoLS is not sufficient for the hEb to be localized in nucleoli of the cells and a different mechanism may be involved in hEb targeting. A BrdU ELISA showed that the proliferation index of cells expressing hEb hybrid proteins increased up to 28%. For comparison, the same assay was performed using HeLa cells treated extracellularly with synthetic hEb. A significant increase in the proliferation index was observed (41-58% for concentrations ranging from 10-100 nM, respectively). Additionally, a cell migration assay was performed using stable U2-OS cell lines expressing hEb fused with RFP or RFP alone as a negative control. The migration index of hEb expressing cells was 38.3% greater. The increase in cell proliferation index and in motile properties of hEb expressing cells demonstrate that hEb is more than a pre-pro-IGF1b processing product, and has intrinsic activity of biological significance.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.