Evidence map›Paper›PMID 32547389›Full record

ArticleFrontiers in pharmacology2020

Rhein Derivative 4F Inhibits the Malignant Phenotype of Breast Cancer by Downregulating Rac1 Protein.

Xinxiao Li, Yunfeng Liu, Yuhua Zhao, Wei Tian, Lina Zhai, Huifeng Pang, Jiankang Kang, Huaxin Hou, Yanhua Chen, Danrong Li

Open access · goldAbstract read
In one paragraph

Article in Frontiers in pharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

20 citing papers in PubMed, 27 citations in OpenAlex.

  1. Rhein and its derivatives: potential anti-tumor drugs and corresponding targeted mechanism.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2026
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  6. Structural Dynamics of Rho GTPases.Journal of molecular biology · 2025
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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

10 authors at 1 institution in 1 country.

Xinxiao LiDepartment of Basic Research, Guangxi Medical University Cancer Hospital, Nanning, China.
Yunfeng LiuDepartment of Basic Research, Guangxi Medical University Cancer Hospital, Nanning, China.
Yuhua ZhaoDepartment of Basic Research, Guangxi Medical University Cancer Hospital, Nanning, China.
Wei TianCollege of Pharmacy, Guangxi Medical University, Nanning, China.
Lina ZhaiLife Sciences Institute, Guangxi Medical University, Nanning, China.
Huifeng PangDepartment of Basic Research, Guangxi Medical University Cancer Hospital, Nanning, China.
Jiankang KangLife Sciences Institute, Guangxi Medical University, Nanning, China.
Huaxin HouCollege of Pharmacy, Guangxi Medical University, Nanning, China.
Yanhua ChenDepartment of Basic Research, Guangxi Medical University Cancer Hospital, Nanning, China.
Danrong LiDepartment of Basic Research, Guangxi Medical University Cancer Hospital, Nanning, China.
Guangxi Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTriple-negative breast cancer is a common malignant tumor with unfavorable prognosis affecting women worldwide; thus, there is an urgent need for novel therapeutic drugs with improved anti-tumor activity. Rac family small GTPase 1 (Rac1) plays an important role in malignant behavior and is a promising therapeutic target. We reported an anthraquinone compound, Rhein, and its derivative, 4F, and investigated their downregulation effects on Rac1 in breast cancer cells

methodsThe inhibition of cell proliferation by derivative 4F was investigated in two breast cancer (MDA-MB-231 and MCF-7) and normal breast (MCF-10A) cell lines by cell counting kit-8 assay and growth curves. The role of 4F in cell migration and invasion and cytoskeletal change were assessed by Transwell chamber assay and F-actin staining, respectively. The affinity of Rhein and its derivative for Rac1 protein and the regulation of Rac1 promoter activity were evaluated by molecular docking software and luciferase reporter gene assay, respectively. Rac1 protein expression was determined by western blot assay.

resultsCompared to Rhein, derivative 4F more strongly inhibited breast cancer cell proliferation, migration, and invasion and also cause cytoskeletal changes like those in paclitaxel. Derivative 4F not only bound more stably to Rac1 but also inhibited Rac1 promoter activity in cells and downregulated Rac1 protein expression.

conclusionsRhein derivative 4F is a new anthraquinone compound with better anti-tumor activity than that of the lead compound Rhein in breast cancer. It down-regulated Rac1 expression and may be a small molecule inhibitor of Rac1.

Indexed as

anticancerbreast cancerdrug designRac family small GTPase 1Rhein derivative

Identifiers

PMID32547389
PMCPMC7274043
OpenAlexW3028970758

What OpenQuestion holds

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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.