Evidence map›Paper›PMID 33233699›Full record

ArticleMarine drugs2020

Astaxanthin Reduces Stemness Markers in BT20 and T47D Breast Cancer Stem Cells by Inhibiting Expression of Pontin and Mutant p53.

Yong Tae Ahn, Min Sung Kim, Youn Sook Kim, Won Gun An

Abstract read
In one paragraph

Article in Marine drugs, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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

13 citing papers in PubMed.

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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

4 authors.

Yong Tae AhnResearch Institute for Longevity and Well-Being, Pusan National University, Busan 46241, Korea.
Min Sung KimDivision of Pharmacology, School of Korean Medicine, Pusan National University, Yangsan 50612, Korea.
Youn Sook KimGene & Cell Therapy Research Center for Vessel-Associated Diseases, Pusan National University, Yangsan 50612, Korea.
Won Gun AnDivision of Pharmacology, School of Korean Medicine, Pusan National University, Yangsan 50612, Korea.ORCID 0000-0002-1341-2114

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Astaxanthin (AST) is a product made from marine organisms that has been used as an anti-cancer supplement. It reduces pontin expression and induces apoptosis in SKBR3, a breast cancer cell line. Using Western blotting and qRT-PCR analyses, this study revealed that in the T47D and BT20 breast cancer cell lines, AST inhibits expression of pontin and mutp53, as well as the Oct4 and Nanog cancer stem cell (CSC) stemness genes. In addition, we explored the mechanism by which AST eradicates breast cancer cells using pontin siRNAs. Pontin knockdown by pontin siRNA reduced proliferation, Oct4 and Nanog expression, colony and spheroid formation, and migration and invasion abilities in breast cancer cells. In addition, reductions in Oct4, Nanog, and mutp53 expression following rottlerin treatment confirmed the role of pontin in these cells. Therefore, pontin may play a central role in the regulation of CSC properties and in cell proliferation following AST treatment. Taken together, these findings demonstrate that AST can repress CSC stemness genes in breast cancer cells, which implies that AST therapy could be used to improve the efficacy of other anti-cancer therapies against breast cancer cells.

Indexed as

Antineoplastic AgentsATPases Associated with Diverse Cellular ActivitiesBreast NeoplasmsCarrier ProteinsCell MovementCell ProliferationDNA HelicasesFemaleGene Expression Regulation, NeoplasticHumansMutationNanog Homeobox ProteinNeoplasm InvasivenessNeoplastic Stem CellsOctamer Transcription Factor-3Tumor Suppressor Protein p53Antineoplastic AgentsastaxanthineATPases Associated with Diverse Cellular ActivitiesCarrier ProteinsDNA HelicasesNanog Homeobox ProteinNANOG protein, humanOctamer Transcription Factor-3POU5F1 protein, humanRUVBL1 protein, humanTP53 protein, humanTumor Suppressor Protein p53XanthophyllsastaxanthinBT20cancer stem cellsmutp53NanogOct4pontinsiRNAT47D

Identifiers

PMID33233699
PMCPMC7699712

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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.