Evidence map›Paper›PMID 31190884›Full record

ArticleOncoTargets and therapy2019

Impact of CXCR4 and CXCR7 knockout by CRISPR/Cas9 on the function of triple-negative breast cancer cells.

Meng Yang, Chen Zeng, Peiting Li, Liyuan Qian, Boni Ding, Lihua Huang, Gang Li, Han Jiang, Ni Gong, Wei Wu

Open access · goldAbstract read
In one paragraph

Article in OncoTargets and therapy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 7% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 58 citations in OpenAlex.

  1. Pooled it
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  7. Review
  8. CRISPR/Cas9 systems: Delivery technologies and biomedical applications.Asian journal of pharmaceutical sciences · 2023
    Review
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  10. Review
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  12. Review
  13. Review
  14. Article
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  19. Article
  20. Drivers and suppressors of triple-negative breast cancer.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
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

10 authors at 2 institutions in 1 country.

Meng YangDepartment of Breast Thyroid Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China, 1103108245@qq.com.
Chen ZengDepartment of Breast Thyroid Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China, 1103108245@qq.com.
Peiting LiDepartment of Breast Thyroid Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China, 1103108245@qq.com.
Liyuan QianDepartment of Breast Thyroid Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China, 1103108245@qq.com.
Boni DingDepartment of Breast Thyroid Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China, 1103108245@qq.com.
Lihua HuangCentral Laboratory, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China.
Gang LiDepartment of Breast Thyroid Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China, 1103108245@qq.com.
Han JiangDepartment of Breast Thyroid Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China, 1103108245@qq.com.
Ni GongDepartment of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan Province, People's Republic of China, 1805278220@qq.com.
Wei WuDepartment of Breast Thyroid Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China, 1103108245@qq.com.
Central South University · CNThird Xiangya Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBreast cancer is one of the most common malignancies threatening women's health. Triple-negative breast cancer (TNBC) is a special type of breast cancer with high invasion and metastasis. CXCL12 and its receptors CXCR4 and CXCR7 play a crucial role in the progress of breast cancer. The aim of this study was to investigate the effect of CXCR4 and CXCR7 on the function of TNBC. MATERIALS AND

methodsWe used the CRISPR/Cas9 technique to carry out a single knockout of the CXCR4 or CXCR7 gene and co-knockout of CXCR4 and CXCR7 genes in the TNBC cell line (MDA-MB-231). The single knockout and co-knockout cells were screened and verified by PCR sequencing and Western blot assay, the effect of single knockout and co-knockout on the proliferation of TNBC cells was examined using the Cell Counting Kit-8 and colony formation assays, the migration and invasion of TNBC cells were examined by the transwell and wound-healing assays, the changes in the cell cycle distribution after knockout were detected by flow cytometry, and the difference in the migration and invasion of single knockout and co-knockout induced by CXCL12 was observed by adding CXCL12 in the experimental group.

resultsThe single knockout of the CXCR4 or CXCR7 gene significantly reduced the cell proliferation, growth, migration, and invasion and delayed the conversion of the G1/S cycle, while the co-knockout inhibited these biological abilities more significantly. In both the knockout and control groups, the migration and invasion of CXCL12-added cells were significantly stronger than those of the non-CXCL12-added cells, and CXCL12 induced lesser migration and invasion in the CXCR4 and CXCR7 co-knockout group than in the single knockout groups.

conclusionThe knockout of the CXCR4 and CXCR7 genes affects the binding capacity and functions of CXCL12, inhibits the malignant progression of TNBC cells significantly, and may become a potential target for the treatment of TNBC.

Indexed as

CRISPR/Cas9CXCL12CXCR4CXCR7TNBCtriple-negative breast cancer cells

Identifiers

PMID31190884
PMCPMC6527053
OpenAlexW2944915122

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.