Evidence map›Paper›PMID 32052182›Full record

ArticleSurgery today2020

Cancer exosomal microRNAs from gefitinib-resistant lung cancer cells cause therapeutic resistance in gefitinib-sensitive cells.

Yoko Azuma, Takehiko Yokobori, Akira Mogi, Toshiki Yajima, Takayuki Kosaka, Misaki Iijima, Kimihiro Shimizu, Ken Shirabe, Hiroyuki Kuwano

Abstract read
PubMed Publisher
In one paragraph

Article in Surgery today, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 24 citations in OpenAlex.

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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

9 authors at 1 institution in 1 country.

Yoko AzumaDepartment of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, 371-8511, Japan. yoko.azuma@med.toho-u.ac.jp.
Takehiko YokoboriDepartment of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, 371-8511, Japan.
Akira MogiDepartment of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, 371-8511, Japan.
Toshiki YajimaDepartment of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, 371-8511, Japan.
Takayuki KosakaDepartment of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, 371-8511, Japan.
Misaki IijimaDepartment of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, 371-8511, Japan.
Kimihiro ShimizuDepartment of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, 371-8511, Japan.
Ken ShirabeDepartment of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, 371-8511, Japan.
Hiroyuki KuwanoDepartment of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, 371-8511, Japan.
Gunma University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeExosomes and their cargo microRNAs play a significant role in various biological processes in cancer. We hypothesized that microRNAs in exosomes secreted by gefitinib-resistant lung cancer cells might induce resistant phenotypes in otherwise gefitinib-sensitive lung cancer cells.

methodsWe isolated exosomes generated by the gefitinib-resistant human lung adenocarcinoma cell line PS-9/ZD. PC-9, which is a gefitinib-sensitive cell line, was treated with the PC-9/ZD exosomes, and these PC-9 cells were analyzed for cell proliferation after treatment with gefitinib. miRNA arrays were analyzed in PC-9 and PC-9/ZD cells, and we isolated microRNAs that were expressed at elevated levels in PC-9/ZD cells. Furthermore, we transfected these microRNAs into PC-9 cells and analyzed the effects on the cells' sensitivity to gefitinib.

resultsExosomes isolated from PC-9/ZD cells significantly increased the proliferation of PC-9 cells during gefitinib treatment. A microRNA array analysis showed that miR-564, miR-658, miR-3652, miR-3126-5p, miR-3682-3p and miR-6810-5p were significantly upregulated in PC-9/ZD cells. PC-9 cells transfected with miR-564 or miR-658 showed chemo-resistant phenotypes.

conclusionExosomal miR-564 and miR-658 derived from gefitinib-resistant lung cancer cells induce drug resistance in sensitive cells. Cell-to-cell interaction via exosomal microRNAs may be a novel mechanism and therapeutic target of resistance against gefitinib.

Indexed as

MicroRNAsAdenocarcinoma of LungCell CommunicationCell Line, TumorCell ProliferationDrug Resistance, NeoplasmExosomesGefitinibHumansLung NeoplasmsMolecular Targeted TherapyUp-RegulationGefitinibMicroRNAsCell-to-cell interactionExosomeGefitinib resistanceLung cancermicroRNAs

Identifiers

PMID32052182
OpenAlexW3006000467

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.