Evidence map›Paper›PMID 34051014›Full record

ArticleCancer science2021

Azithromycin enhances the cytotoxicity of DNA-damaging drugs via lysosomal membrane permeabilization in lung cancer cells.

Kazutoshi Toriyama, Naoharu Takano, Hiroko Kokuba, Hiromi Kazama, Shota Moriya, Masaki Hiramoto, Shinji Abe, Keisuke Miyazawa

Open access · goldAbstract read
In one paragraph

Article in Cancer science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.5field-weighted citation impact, top 4% 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

23 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
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  4. Design of chitosan-coated CeORSC medicinal chemistry · 2025
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  10. Oncology letters · 2024
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  14. Review
  15. Lysosomes as a Target of Anticancer Therapy.International journal of molecular sciences · 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

8 authors at 2 institutions in 1 country.

Kazutoshi ToriyamaDepartment of Respiratory Medicine, Tokyo Medical University Hospital, Tokyo, Japan.
Naoharu TakanoDepartment of Biochemistry, Tokyo Medical University, Tokyo, Japan.ORCID https://orcid.org/0000-0003-3364-2731
Hiroko KokubaLaboratory of Electron Microscopy, Tokyo Medical University, Tokyo, Japan.
Hiromi KazamaDepartment of Biochemistry, Tokyo Medical University, Tokyo, Japan.
Shota MoriyaDepartment of Biochemistry, Tokyo Medical University, Tokyo, Japan.
Masaki HiramotoDepartment of Biochemistry, Tokyo Medical University, Tokyo, Japan.
Shinji AbeDepartment of Respiratory Medicine, Tokyo Medical University Hospital, Tokyo, Japan.
Keisuke MiyazawaDepartment of Biochemistry, Tokyo Medical University, Tokyo, Japan.ORCID https://orcid.org/0000-0002-8435-1304
Tokyo Medical University · JPTokyo Medical University Hospital · JP

Funding

AMED JP18lm0203004JSPS KAKENHI 17K15031JSPS KAKENHI 20K07298Strategic Research Foundation at Private Universities S1411011the Ministry of Education, Culture, Sports, Science and Technology of JapanTokyo Medical University Cancer Research
6 · The paper itself

Abstract

Cancer cells use autophagy for growth, survival, and cytoprotection from chemotherapy. Therefore, autophagy inhibitors appear to be good candidates for cancer treatment. Our group previously reported that macrolide antibiotics, especially azithromycin (AZM), have potent autophagy inhibitory effects, and combination treatment with tyrosine kinase inhibitors or proteasome inhibitors enhances their anti-cancer activity. In this study, we evaluated the effect of combination therapy with DNA-damaging drugs and AZM in non-small-cell lung cancer (NSCLC) cells. We found that the cytotoxic activities of DNA-damaging drugs, such as doxorubicin (DOX), etoposide, and carboplatin, were enhanced in the presence of AZM in NSCLC cell lines, whereas AZM alone exhibited almost no cytotoxicity. This enhanced cell death was dependent on wild-type-p53 status and autophagosome-forming ability because TP53 knockout (KO) and ATG5-KO cells attenuated AZM-enhanced cytotoxicity. DOX treatment upregulated lysosomal biogenesis by activating TFEB and led to lysosomal membrane damage as assessed by galectin 3 puncta assay and cytoplasmic leakage of lysosomal enzymes. In contrast, AZM treatment blocked autophagy, which resulted in the accumulation of lysosomes/autolysosomes. Thus, the effects of DOX and AZM were integrated into the marked increase in damaged lysosomes/autolysosomes, leading to prominent lysosomal membrane permeabilization (LMP) for apoptosis induction. Our data suggest that concomitant treatment with DNA-damaging drugs and AZM is a promising strategy for NSCLC treatment via pronounced LMP induction.

Indexed as

A549 CellsAutophagyAzithromycinCarboplatinCarcinoma, Non-Small-Cell LungCell Line, TumorCell Membrane PermeabilityCell ProliferationCell SurvivalDNA DamageDrug SynergismHumansLung NeoplasmsLysosomesTopoisomerase II InhibitorsAzithromycinCarboplatinTopoisomerase II Inhibitorsautophagyazithromycinlysosomal membrane permeabilizationnon-small-cell lung cancerp53

Identifiers

PMID34051014
PMCPMC8353917
OpenAlexW3164579384

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.