Evidence map›Paper›PMID 32426266›Full record

ArticleFrontiers in oncology2020

Exosomal MicroRNA-221-3p Confers Adriamycin Resistance in Breast Cancer Cells by Targeting PIK3R1.

Xiaoping Pan, Xiaolv Hong, Jinguo Lai, Lu Cheng, Yandong Cheng, Mingmei Yao, Rong Wang, Na Hu

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in Frontiers in oncology, 2020. 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 It has been retracted, and should not be counted.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 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

24 citing papers in PubMed, 31 citations in OpenAlex.

  1. Potential biological roles of exosomal non-coding RNAs in breast cancer.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Review
  2. Review
  3. Article
  4. Article
  5. MicroRNA-221-3p Targets THBS1 to Promote Wound Healing in Diabetes.Diabetes, metabolic syndrome and obesity : targets and therapy · 2023
    Article
  6. Review
  7. Review
  8. Angioregulatory microRNAs in breast cancerJournal of advanced research · 2022
    Review
  9. Article
  10. Investigation of the Anticancer Effect ofMolecules (Basel, Switzerland) · 2022
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. MicroRNAs: The Link between the Metabolic Syndrome and Oncogenesis.International journal of molecular sciences · 2021
    Review
  17. Review
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Xiaoping PanClinical Laboratory, Huadu Hospital, Southern Medical University, Guangzhou, China.
Xiaolv HongDepartment of Infectious Diseases, Huadu Hospital, Southern Medical University, Guangzhou, China.
Jinguo LaiClinical Laboratory, Huadu Hospital, Southern Medical University, Guangzhou, China.
Lu ChengClinical Laboratory, Huadu Hospital, Southern Medical University, Guangzhou, China.
Yandong ChengDepartment of Breast Surgery, Huadu Hospital, Southern Medical University, Guangzhou, China.
Mingmei YaoClinical Laboratory, Huadu Hospital, Southern Medical University, Guangzhou, China.
Rong WangClinical Laboratory, Huadu Hospital, Southern Medical University, Guangzhou, China.
Na HuClinical Laboratory, Huadu Hospital, Southern Medical University, Guangzhou, China.
Southern Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Drug resistance in breast cancer (BC) cells continues to be a stern obstacle hindering BC treatment. Adriamycin (ADR) is a frequently employed chemotherapy agent used to treat BC. The exosomal transfer of microRNAs (miRNAs) has been reported to enhance the drug-resistance of BC cells. Herein, we first sought to elucidate the possible role of the exosomal transfer of miR-221-3p in the drug resistance of MCF-7 cells to ADR. Differentially expressed genes (DEGs) were initially screened through microarray analysis in BC drug resistance-related datasets. Next, the expression of miR-221-3p and phosphoinositide-3-kinase regulatory subunit 1 (PIK3R1) was quantified in ADR-resistant MCF-7 (MCF-7/ADR) and ADR-sensitive MCF-7 (MCF-7/S) cell lines, after which exosomes were separated and identified in each cell line. Target relationship between miR-221-3p and PIK3R1 was validated by a dual-luciferase reporter assay. Next, the expression of miR-221-3p and PIK3R1 was altered to clarify their effects on the resistance of MCF-7 cells to ADR

Indexed as

adriamycinbreast cancerdrug resistanceexosomesmicroRNA-221-3pphosphoinositide-3-kinase regulatory subunit 1

Identifiers

PMID32426266
PMCPMC7212418
OpenAlexW3021867877

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.