Evidence map›Paper›PMID 31931284›Full record

ArticleRedox biology2020

Dihydrolipoamide dehydrogenase regulates cystine deprivation-induced ferroptosis in head and neck cancer.

Daiha Shin, Jaewang Lee, Ji Hyeon You, Doyeon Kim, Jong-Lyel Roh

Open access · goldAbstract read
In one paragraph

Article in Redox biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed, 1 pooled it
21.3field-weighted citation impact, top 1% 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

100 citing papers in PubMed, 1 synthesis or guideline pooled it, 191 citations in OpenAlex.

  1. Interplay Between Glucose Metabolism and Chromatin Modifications in Cancer.Frontiers in cell and developmental biology · 2021
    Pooled it
  2. Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Fueling Death: The Metabolic Control of Ferroptosis.Advances in experimental medicine and biology · 2026
    Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. Ferroptosis-Like Death Induction inJournal of microbiology and biotechnology · 2025
    Article
  15. Article
  16. Ferroptosis of T cell in inflammation and tumour immunity.Clinical and translational medicine · 2025
    Review
  17. Review
  18. Article
  19. Review
  20. Article

40 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Daiha ShinDepartment of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea; Western Seoul Center, Korea Basic Science Institute, Seoul, Republic of Korea.
Jaewang LeeDepartment of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea.
Ji Hyeon YouDepartment of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea.
Doyeon KimDepartment of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea.
Jong-Lyel RohDepartment of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea. Electronic address: rohjl@cha.ac.kr.
CHA University Bundang Medical Center · KRCHA University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ferroptosis is a new form of regulated cell death driven by iron-dependent lipid peroxidation. Glutaminolysis and tricarboxylic acid cycle are involved in ferroptosis, but the underlying metabolic process remains unclear. We examined the role of dihydrolipoamide dehydrogenase (DLD) in ferroptosis induction in head and neck cancer (HNC). The effects of cystine deprivation or sulfasalazine treatment and of DLD gene silencing/overexpression were tested on HNC cell lines and mouse tumor xenograft models. These effects were analyzed with regard to cell death, lipid reactive oxygen species (ROS) and mitochondrial iron production, mitochondrial membrane potential, mRNA/protein expression, and α-ketoglutarate dehydrogenase (KGDH)/succinate/aconitase activities. Cystine deprivation induced ferroptosis via glutaminolysis. Cystine deprivation or import inhibition using sulfasalazine induced cancer cell death and increased lipid ROS and mitochondrial iron levels, which had been significantly decreased by short-interfering RNA (siRNA) or short hairpin RNA (shRNA) targeting DLD (P < 0.01) but not by dihydrolipoyl succinyltransferase. The same results were noted in an in vivo mouse model transplanted with vector or shDLD-transduced HN9 cells. After cystine deprivation or sulfasalazine treatment, mitochondrial membrane potential, mitochondrial free iron level, KGDH activity, and succinate content significantly increased (P < 0.001), which had been blocked by DLD siRNA or shRNA and were consequently rescued by resistant DLD cDNA. Cystine deprivation caused iron starvation response and mitochondrial iron accumulation for Fenton reaction and ferroptosis. Our data suggest a close association of DLD with cystine deprivation- or import inhibition-induced ferroptosis.

Indexed as

AnimalsCell Line, TumorCystineDihydrolipoamide DehydrogenaseDrug Resistance, NeoplasmFerroptosisGene SilencingHead and Neck NeoplasmsHumansLipid PeroxidationMaleMembrane Potential, MitochondrialMiceNeoplasm TransplantationReactive Oxygen SpeciesSulfasalazineCystineDihydrolipoamide DehydrogenaseReactive Oxygen SpeciesSulfasalazineCystine deprivationDihydrolipoamide dehydrogenaseFerroptosisIronMitochondria

Identifiers

PMID31931284
PMCPMC6957841
OpenAlexW2998860042

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.