Evidence map›Paper›PMID 26773505›Full record

ArticleBiochemical and biophysical research communications2016

Galactose-1 phosphate uridylyltransferase (GalT) gene: A novel positive regulator of the PI3K/Akt signaling pathway in mouse fibroblasts.

Bijina Balakrishnan, Wyman Chen, Manshu Tang, Xiaoping Huang, Didem Demirbas Cakici, Anwer Siddiqi, Gerard Berry, Kent Lai

Abstract read
In one paragraph

Article in Biochemical and biophysical research communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 15% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Reproductive potential in classical galactosemia: A case series based perspective.European journal of obstetrics & gynecology and reproductive biology: X · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. AAV9-basedMolecular genetics and metabolism reports · 2024
    Article
  8. Review
  9. Article
  10. Article
  11. Harnessing the Power of Purple Sweet Potato Color andInternational journal of molecular sciences · 2022
    Article
  12. Review
  13. Review
  14. Current and Future Treatments for Classic Galactosemia.Journal of personalized medicine · 2021
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

8 authors at 3 institutions in 1 country.

Bijina BalakrishnanDivision of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, USA.
Wyman ChenDivision of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, USA.
Manshu TangDivision of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, USA.
Xiaoping HuangDivision of Genetics and Genomics, Department of Pediatrics, Harvard Medical School, USA.
Didem Demirbas CakiciDivision of Genetics and Genomics, Department of Pediatrics, Harvard Medical School, USA.
Anwer SiddiqiDepartment of Pathology and Laboratory Medicine, University of Florida College of Medicine, USA.
Gerard BerryDivision of Genetics and Genomics, Department of Pediatrics, Harvard Medical School, USA.
Kent LaiDivision of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, USA. Electronic address: kent.lai@hsc.utah.edu.
University of Utah · USHarvard University · USUniversity of Florida · US

Funding

Toward Improved Therapy for Classic GalactosemiaR01HD074844 · NICHD · UNIVERSITY OF UTAH · PI LAI, KENT · 2012 to 2014
$904k
NICHD NIH HHS 1R01HD074844NICHD NIH HHS R01 HD074844
6 · The paper itself

Abstract

The vital importance of the Leloir pathway of galactose metabolism has been repeatedly demonstrated by various uni-/multicellular model organisms, as well human patients who have inherited deficiencies of the key GAL enzymes. Yet, other than the obvious links to the glycolytic pathway and glycan biosynthetic pathways, little is known about how this metabolic pathway interacts with the rest of the metabolic and signaling networks. In this study, we compared the growth and the expression levels of the key components of the PI3K/Akt growth signaling pathway in primary fibroblasts derived from normal and galactose-1 phosphate uridylyltransferase (GalT)-deficient mice, the latter exhibited a subfertility phenotype in adult females and growth restriction in both sexes. The growth potential and the protein levels of the pAkt(Thr308), pAkt(Ser473), pan-Akt, pPdk1, and Hsp90 proteins were significantly reduced by 62.5%, 60.3%, 66%, 66%, and 50%, respectively in the GalT-deficient cells. Reduced expression of phosphorylated Akt proteins in the mutant cells led to diminished phosphorylation of Gsk-3β (-74%). Protein expression of BiP and pPten were 276% and 176% higher respectively in cells with GalT-deficiency. Of the 24 genes interrogated using QIAGEN RT(2) Profiler PCR Custom Arrays, the mRNA abundance of Akt1, Pdpk1, Hsp90aa1 and Pi3kca genes were significantly reduced at least 2.03-, 1.37-, 2.45-, and 1.78-fold respectively in mutant fibroblasts. Both serum-fasted normal and GalT-deficient cells responded to Igf-1-induced activation of Akt phosphorylation at +15 min, but the mutant cells have lower phosphorylation levels. The steady-state protein abundance of Igf-1 receptor was also significantly reduced in mutant cells. Our results thus demonstrated that GalT deficiency can effect down-regulation of the PI3K/Akt growth signaling pathway in mouse fibroblasts through distinct mechanisms targeting both gene and protein expression levels.

Indexed as

AnimalsEndoplasmic Reticulum StressFemaleFibroblastsGalactosemiasGene Expression Regulation, EnzymologicMaleMicePhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktSignal TransductionUTP-Hexose-1-Phosphate UridylyltransferasePhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktUTP-Hexose-1-Phosphate Uridylyltransferase3-Phosphoinositide-dependent kinase-1 (Pdk1)Endoplasmic reticulum (ER) stressGalactose-1 phosphate uridylyltransferase (GalT)GalactosemiaHeat shock protein 90 (Hsp90)Protein kinase B (Akt)

Identifiers

PMID26773505
PMCPMC4728015
OpenAlexW2231328561

What OpenQuestion holds

Textmetadata
LicenceTDM
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.