Evidence map›Paper›PMID 25566096›Full record

ArticleFrontiers in physiology2014

Mitochondria dysfunction in lung cancer-induced muscle wasting in C2C12 myotubes.

Julie B McLean, Jennifer S Moylan, Francisco H Andrade

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 12% 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, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Vitamin B1 Involved inInternational journal of molecular sciences · 2025
    Article
  5. Physical Activity, Exerkines, and Their Role in Cancer Cachexia.International journal of molecular sciences · 2025
    Review
  6. Review
  7. Mitochondria transcription and cancer.Cell death discovery · 2024
    Review
  8. Immunoregulation in cancer-associated cachexia.Journal of advanced research · 2024
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  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

3 authors at 1 institution in 1 country.

Julie B McLeanDepartment of Physiology, University of Kentucky Lexington, KY, USA ; Center for Muscle Biology, University of Kentucky Lexington, KY, USA.
Jennifer S MoylanDepartment of Physiology, University of Kentucky Lexington, KY, USA ; Center for Muscle Biology, University of Kentucky Lexington, KY, USA.
Francisco H AndradeDepartment of Physiology, University of Kentucky Lexington, KY, USA ; Center for Muscle Biology, University of Kentucky Lexington, KY, USA.
University of Kentucky · US

Funding

Respiratory Muscle Weakness in Chronic InflammationR01AR055974 · NIAMS · UNIVERSITY OF KENTUCKY · PI ANDRADE, FRANCISCO H · 2009 to 2013
$1.6M
NIAMS NIH HHS R01 AR055974
6 · The paper itself

Abstract

aimsCancer cachexia is a syndrome which results in severe loss of muscle mass and marked fatigue. Conditioned media from cachexia-inducing cancer cells triggers metabolic dysfunction in skeletal muscle, including decreased mitochondrial respiration, which may contribute to fatigue. We hypothesized that Lewis lung carcinoma conditioned medium (LCM) would impair the mitochondrial electron transport chain (ETC) and increase production of reactive oxygen species, ultimately leading to decreased mitochondrial respiration. We incubated C2C12 myotubes with LCM for 30 min, 2, 4, 24 or 48 h. We measured protein content by western blot; oxidant production by 2',7'-dichlorofluorescin diacetate (DCF), 4-amino-5-methylamino-2',7'-difluorofluorescein diacetate (DAF), and MitoSox; cytochrome c oxidase activity by oxidation of cytochrome c substrate; and oxygen consumption rate (OCR) of intact myotubes by Seahorse XF Analyzer.

resultsLCM treatment for 2 or 24 h decreased basal OCR and ATP-related OCR, but did not alter the content of mitochondrial complexes I, III, IV and V. LCM treatment caused a transient rise in reactive oxygen species (ROS). In particular, mitochondrial superoxide (MitoSOX) was elevated at 2 h. 4-Hydroxynonenal, a marker of oxidative stress, was elevated in both cytosolic and mitochondrial fractions of cell lysates after LCM treatment.

conclusionThese data show that lung cancer-conditioned media alters electron flow in the ETC and increases mitochondrial ROS production, both of which may ultimately impair aerobic metabolism and decrease muscle endurance.

Indexed as

cachexiaelectron transport chainmitochondriaoxidantsskeletal muscle

Identifiers

PMID25566096
PMCPMC4270181
OpenAlexW2116663463

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.