Evidence map›Paper›PMID 29845246›Full record

ArticleInternational journal of oncology2018

Exosome-mediated transfer of lncRNA RP11‑838N2.4 promotes erlotinib resistance in non-small cell lung cancer.

Wei Zhang, Xinrui Cai, Jie Yu, Xuxiang Lu, Qiuhai Qian, Weibin Qian

RetractedOpen access · hybridAbstract readRetracted Publication
In one paragraph

Article in International journal of oncology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 76 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 2% 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

76 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. The therapeutic potential of exosomes in lung cancer.Cellular oncology (Dordrecht, Netherlands) · 2023
    Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Extracellular Vesicles in Cancer Drug Resistance: Roles, Mechanisms, and Implications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Review
  17. Review
  18. Spermine synthase (Annals of translational medicine · 2022
    Article
  19. Review
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Wei ZhangDepartment of Lung Disease, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China.
Xinrui CaiDepartment of Traditional Chinese Medicine, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China.
Jie YuDepartment of Chinese Internal Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.
Xuxiang LuDepartment of Chinese Internal Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.
Qiuhai QianDepartment of Endocrinology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China.
Weibin QianDepartment of Lung Disease, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China.
Affiliated Hospital of Shandong University of Traditional Chinese Medicine · CNShandong University of Traditional Chinese Medicine · CNShandong First Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Currently, resistance to tyrosine kinase inhibitors, such as erlotinib, has become a major obstacle for improving the clinical outcome of patients with metastatic and advanced‑stage non-small cell lung cancer (NSCLC). While cell behavior can be modulated by long non-coding RNAs (lncRNAs), the roles of lncRNAs within extracellular vesicles (exosomes) are largely unknown. To this end, in this study, the involvement and regulatory functions of potential lncRNAs wrapped by exosomes during the development of chemoresistance in human NSCLC were investigated. Erlotinib-resistant cell lines were established by grafting HCC827 and HCC4006 cells into mice and which were treated with erlotinib. After one treatment course, xenografted NSCLC cells were isolated and transplanted into nude mice again followed by erlotinib treatment. This process was repeated until 4th generation xenografts were isolated and confirmed to be erlotinib-resistant NSCLC cells. lncRNA microarray assays followed by RT‑qPCR were then performed which identified that lncRNA RP11‑838N2.4 was upregulated in erlotinib-resistant cells when compared to normal NSCLC cells. Furthermore, bioinformatics analysis and chromatin immunoprecipitation revealed that forkhead box protein O1 (FOXO1) could bind to the promoter region of lncRNA RP11‑838N2.4, resulting in its silencing through the recruitment of histone deacetylase. Functional experiments demonstrated that the knockdown of lncRNA RP11‑838N2.4 potently promoted erlotinib-induced cytotoxicity. Furthermore, extracellular lncRNA RP11‑838N2.4 could be incorporated into exosomes and transmitted to sensitive cells, thus disseminating erlotinib resistance. Treatment-sensitive cells with exosomes containing lncRNA RP11‑838N2.4 induced erlotinib resistance, while the knockdown of lncRNA RP11‑838N2.4 abrogated this effect. In addition, the serum expression levels of exosomal lncRNA RP11‑838N2.4 were upregulated in patients exhibiting resistance to erlotinib treatment. On the whole, exosomal lncRNA RP11‑838N2.4 may serve as a therapeutic target for patients with NSCLC.

Indexed as

Drug Resistance, NeoplasmAdultAgedAnimalsCarcinoma, Non-Small-Cell LungCell Line, TumorErlotinib HydrochlorideExosomesFemaleForkhead Box Protein O1Gene Expression Regulation, NeoplasticHumansLung NeoplasmsMaleMiceMiddle AgedErlotinib HydrochlorideForkhead Box Protein O1FOXO1 protein, humanRNA, Long Noncoding

Identifiers

PMID29845246
PMCPMC6017264
OpenAlexW2803504018

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.