Evidence map›Paper›PMID 21550972›Full record

ArticleThe Journal of biological chemistry2011

L-threonine regulates G1/S phase transition of mouse embryonic stem cells via PI3K/Akt, MAPKs, and mTORC pathways.

Jung Min Ryu, Ho Jae Han

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

38 citing papers in PubMed, 78 citations in OpenAlex.

  1. Review
  2. Metabolic and morphometric analysis of allometric and total liver growth in Post-Hatch chickens.Metabolomics : Official journal of the Metabolomic Society · 2025
    Article
  3. Article
  4. Review
  5. Article
  6. Metabolic control of induced pluripotency.Frontiers in cell and developmental biology · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Epigenetic Modifications at the Center of the Barker Hypothesis and Their Transgenerational Implications.International journal of environmental research and public health · 2021
    Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Energy Metabolism Regulates Stem Cell Pluripotency.Frontiers in cell and developmental biology · 2020
    Review
  19. 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

2 authors at 1 institution in 1 country.

Jung Min RyuDepartment of Veterinary Physiology, College of Veterinary Medicine, Biotherapy Human Resources Center (BK21), Chonnam National University, Gwangju 500-757, Korea.
Ho Jae Han
Chonnam National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although amino acids can function as signaling molecules in the regulation of many cellular processes, mechanisms surrounding L-threonine involvement in embryonic stem cell (ESC) functions have not been explored. Thus, we investigated the effect of L-threonine on regulation of mouse (m)ESC self-renewal and related signaling pathways. In L-threonine-depleted mESC culture media mRNA of self-renewal marker genes, [(3)H]thymidine incorporation, expression of c-Myc, Oct4, and cyclins protein was attenuated. In addition, resupplying L-threonine (500 μM) after depletion restores/maintains the mESC proliferation. Disruption of the lipid raft/caveolae microdomain through treatment with methyl-β-cyclodextrin or transfection with caveolin-1 specific small interfering RNA blocked L-threonine-induced proliferation of mESCs. Addition of L-threonine induced phosphorylation of Akt, ERK, p38, JNK/SAPK, and mTOR in a time-dependent manner. This activity was blocked by LY 294002 (PI3K inhibitor), wortmannin (PI3K inhibitor), or an Akt inhibitor. L-threonine-induced activation of mTOR, p70S6K, and 4E-BP1 as well as cyclins and Oct4 were blocked by PD 98059 (ERK inhibitor), SB 203580 (p38 inhibitor) or SP 600125 (JNK inhibitor). Furthermore, L-threonine induced phosphorylation of raptor and rictor binding to mTOR was completely inhibited by 24 h treatment with rapamycin (mTOR inhibitor); however, a 10 min treatment with rapamycin only partially inhibited rictor phosphorylation. L-threonine induced translocation of rictor from the membrane to the cytosol/nuclear, which blocked by pretreatment with rapamycin. In addition, rapamycin blocked L-threonine-induced increases in mRNA expressions of trophoectoderm and mesoderm marker genes and mESC proliferation. In conclusion, L-threonine stimulated ESC G(1)/S transition through lipid raft/caveolae-dependent PI3K/Akt, MAPKs, mTOR, p70S6K, and 4E-BP1 signaling pathways.

Indexed as

Adaptor Proteins, Signal TransducingAnimalsAnti-Bacterial Agentsbeta-CyclodextrinsCarrier ProteinsCaveolaeCaveolin 1Cell Cycle ProteinsCell LineCyclinsEmbryonic Stem CellsEukaryotic Initiation FactorsG1 PhaseMiceMitogen-Activated Protein Kinase KinasesOctamer Transcription Factor-3Adaptor Proteins, Signal TransducingAnti-Bacterial Agentsbeta-CyclodextrinsCarrier ProteinsCaveolin 1Cell Cycle ProteinsCyclinsEif4ebp1 protein, mouseEukaryotic Initiation Factorsmethyl-beta-cyclodextrinMitogen-Activated Protein Kinase KinasesmTOR protein, mouseMyc protein, mouseOctamer Transcription Factor-3Phosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsPhosphoproteinsPou5f1 protein, mouseProtein Kinase InhibitorsProto-Oncogene Proteins c-aktProto-Oncogene Proteins c-mycRibosomal Protein S6 Kinases, 70-kDaRNA, Small InterferingSirolimusThreonineTOR Serine-Threonine Kinases

Identifiers

PMID21550972
PMCPMC3129147
OpenAlexW2033382599

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.