Evidence map›Paper›PMID 26487002›Full record

ArticleAmerican journal of physiology. Endocrinology and metabolism2015

Disruption of REDD1 gene ameliorates sepsis-induced decrease in mTORC1 signaling but has divergent effects on proteolytic signaling in skeletal muscle.

Jennifer L Steiner, Kristen T Crowell, Scot R Kimball, Charles H Lang

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Endocrinology and metabolism, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 24 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. REDD1 deletion attenuates cancer cachexia in mice.Journal of applied physiology (Bethesda, Md. : 1985) · 2021
    Article
  6. Article
  7. Binge alcohol disrupts skeletal muscle core molecular clock independent of glucocorticoids.American journal of physiology. Endocrinology and metabolism · 2021
    Article
  8. Myostatin deficiency not only prevents muscle wasting but also improves survival in septic mice.American journal of physiology. Endocrinology and metabolism · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Is REDD1 a Metabolic Éminence Grise?Trends in endocrinology and metabolism: TEM · 2016
    Review
  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

4 authors at 1 institution in 1 country.

Jennifer L SteinerDepartment of Cellular and Molecular Physiology and.
Kristen T CrowellDepartment of Cellular and Molecular Physiology and Department of Surgery, Pennsylvania State College of Medicine, Hershey, Pennsylvania.
Scot R KimballDepartment of Cellular and Molecular Physiology and.
Charles H LangDepartment of Cellular and Molecular Physiology and Department of Surgery, Pennsylvania State College of Medicine, Hershey, Pennsylvania clang@psu.edu.
Penn State Milton S. Hershey Medical Center · US

Funding

REGULATION OF SKELETAL MUSCLE METABOLISMR01DK015658 · NIDDK · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI KIMBALL, SCOT R · 1986 to 2021
$7.4M
SEPSIS INDUCED INSULIN RESISTANCE IN DIABETESR01GM038032 · NIGMS · STATE UNIVERSITY NEW YORK STONY BROOK · PI LANG, CHARLES H. · 1992 to 2015
$5.4M
Modulation of Contraction-Induced Changes in Muscle mTOR Signaling by AlcoholF32AA023422 · NIAAA · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI STEINER, JENNIFER LYNN · 2014 to 2016
$158k
Zinc Homeostasis and Muscle Catabolism During Sepsis and RecoveryF32GM112401 · NIGMS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI CROWELL, KRISTEN T · 2014 to 2015
$109k
NIAAA NIH HHS F32 AA023422NIAAA NIH HHS F32-AA023422NIDDK NIH HHS DK-15658NIDDK NIH HHS R01 DK015658NIGMS NIH HHS F32 GM112401NIGMS NIH HHS F32-GM-112401NIGMS NIH HHS R01 GM038032NIGMS NIH HHS R01-GM-38032
6 · The paper itself

Abstract

Sepsis-induced skeletal muscle atrophy and weakness are due in part to decreased mTORC1-mediated protein synthesis and increased proteolysis via the autophagy-lysosomal system and ubiquitin-proteasome pathway. The REDD1 (regulated in development and DNA damage-1) protein is increased in sepsis and can negatively regulate mTORC1 activity. However, the contribution of REDD1 to the sepsis-induced change in muscle protein synthesis and degradation has not been determined. Sepsis was produced by cecal ligation and puncture in female REDD1(-/-) or wild-type (WT) mice, and end points were assessed 24 h later in gastrocnemius; time-matched, pair-fed controls of each genotype were included. Sepsis increased REDD1 protein 300% in WT mice, whereas REDD1 was absent in REDD1(-/-) muscle. Sepsis decreased protein synthesis and phosphorylation of downstream targets of mTORC1 (S6K1 Thr(389), rpS6 Ser(240/244), 4E-BP1 Ser(65)) in WT but not REDD1(-/-) mice. However, Akt and PRAS40 phosphorylation was suppressed in both sham and septic muscle from REDD1(-/-) mice despite unaltered PDK1, PP2A, or TSC2 expression. Sepsis increased autophagy as indicated by decreased ULK1 Ser(757) phosphorylation and p62 abundance and increased LC3B-II/I in WT mice, whereas these changes were absent in septic REDD1(-/-) mice. Conversely, REDD1 deletion did not prevent the sepsis-induced decrease in IGF-I mRNA or the concomitant increase in IL-6, TNFα, MuRF1, and atrogin1 mRNA expression. Lastly, 5-day survival in a separate set of septic mice did not differ between WT and REDD1(-/-) mice. These data highlight the central role of REDD1 in regulating both protein synthesis and autophagy in skeletal muscle during sepsis.

Indexed as

AnimalsDown-RegulationFemaleMechanistic Target of Rapamycin Complex 1MiceMice, KnockoutMultiprotein ComplexesMuscle, SkeletalMuscular AtrophyProteolysisSepsisSignal TransductionTOR Serine-Threonine KinasesTranscription FactorsDdit4 protein, mouseMechanistic Target of Rapamycin Complex 1Multiprotein ComplexesTOR Serine-Threonine KinasesTranscription Factorsautophagycecal ligation and puncturecritical illnessmechanistic target of rapamycin complex 1protein synthesisproteolysisrgulated in development and DNA damage-1

Identifiers

PMID26487002
PMCPMC4816198
OpenAlexW1747786953

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.