Evidence map›Paper›PMID 29649284›Full record

ArticlePloS one2018

Sulfasalazine, an inhibitor of the cystine-glutamate antiporter, reduces DNA damage repair and enhances radiosensitivity in murine B16F10 melanoma.

Masaki Nagane, Eiichi Kanai, Yuki Shibata, Takuto Shimizu, Chie Yoshioka, Takuya Maruo, Tadashi Yamashita

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
5.9field-weighted citation impact, top 3% 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

53 citing papers in PubMed, 84 citations in OpenAlex.

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  16. Ferroptosis: Frenemy of Radiotherapy.International journal of molecular sciences · 2024
    Review
  17. Article
  18. Targeting ferroptosis in melanoma: cancer therapeutics.Cell communication and signaling : CCS · 2023
    Review
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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

7 authors at 1 institution in 1 country.

Masaki NaganeLaboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan.
Eiichi KanaiLaboratory of Veterinary Radiology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan.
Yuki ShibataLaboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan.
Takuto ShimizuLaboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan.
Chie YoshiokaTeaching Animal Hospital, Azabu University, Sagamihara, Kanagawa, Japan.
Takuya MaruoTeaching Animal Hospital, Azabu University, Sagamihara, Kanagawa, Japan.
Tadashi YamashitaLaboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan.ORCID 0000-0001-8022-0158
Azabu University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The sodium-independent cystine-glutamate antiporter plays an important role in extracellular cystine uptake. It comprises the transmembrane protein, xCT and its chaperone, CD98. Because glutathione is only weakly cell membrane permeable, cellular uptake of its precursor, cystine, is known to be a key step in glutathione synthesis. Moreover, it has been reported that xCT expression affects the progression of tumors and their resistance to therapy. Sulfasalazine is an inhibitor of xCT that is known to increase cellular oxidative stress, giving it anti-tumor potential. Here, we describe a radio-sensitizing effect of sulfasalazine using a B16F10 melanoma model. Sulfasalazine decreased glutathione concentrations and resistance to H2O2 in B16F10 melanoma cells, but not in mouse embryonic fibroblasts. It synergistically enhanced the cyto-killing effect of X-irradiation in B16F10 cells. It inhibited cellular DNA damage repair and prolonged cell cycle arrest after X-irradiation. Furthermore, in an in vivo transplanted melanoma model, sulfasalazine decreased intratumoral glutathione content, leading to enhanced susceptibility to radiation therapy. These results suggest the possibility of using SAS to augment the treatment of radio-resistant cancers.

Indexed as

AnimalsAntiportersCell CycleCell SurvivalComet AssayCystineDNA DamageDNA RepairFemaleFibroblastsGlutamic AcidHydrogen PeroxideMelanoma, ExperimentalMiceMice, Inbred C57BLOxidative StressAntiportersCystineGlutamic AcidHydrogen PeroxideReactive Oxygen SpeciesRNA, Small InterferingSulfasalazine

Identifiers

PMID29649284
PMCPMC5896924
OpenAlexW2797244941

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.