Evidence map›Paper›PMID 35794850›Full record

ArticleInternational journal of immunopathology and pharmacology

Purpurin suppresses atopic dermatitis via TNF-α/IFN-γ-induced inflammation in HaCaT cells.

Jae-Hoon Oh, Seung-Ho Kim, Ok-Kyoung Kwon, Jung-Hee Kim, Sei-Ryang Oh, Sang-Bae Han, Ji-Won Park, Kyung-Seop Ahn

Abstract read
In one paragraph

Article in International journal of immunopathology and pharmacology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed.

  1. Article
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  10. Nanomedicine (London, England) · 2025
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  13. Review
  14. Article
  15. Brianolide fromBiomolecules · 2025
    Article
  16. Article
  17. Article
  18. Article
  19. Pharmaceuticals (Basel, Switzerland) · 2024
    Article
  20. 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

8 authors.

Jae-Hoon OhNatural Medicine Research Center, 54679Korea Research Institute of Bioscience and Biotechnology, Cheongju-si, Republic of Korea.
Seung-Ho KimNatural Medicine Research Center, 54679Korea Research Institute of Bioscience and Biotechnology, Cheongju-si, Republic of Korea.
Ok-Kyoung KwonNatural Medicine Research Center, 54679Korea Research Institute of Bioscience and Biotechnology, Cheongju-si, Republic of Korea.
Jung-Hee KimNatural Medicine Research Center, 54679Korea Research Institute of Bioscience and Biotechnology, Cheongju-si, Republic of Korea.
Sei-Ryang OhNatural Medicine Research Center, 54679Korea Research Institute of Bioscience and Biotechnology, Cheongju-si, Republic of Korea.
Sang-Bae HanCollege of Pharmacy, 34933Chungbuk National University, Cheongju-si, Republic of Korea.
Ji-Won ParkNatural Medicine Research Center, 54679Korea Research Institute of Bioscience and Biotechnology, Cheongju-si, Republic of Korea.ORCID https://orcid.org/0000-0003-2899-1937
Kyung-Seop AhnNatural Medicine Research Center, 54679Korea Research Institute of Bioscience and Biotechnology, Cheongju-si, Republic of Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe investigated whether purpurin inhibits various pathways of inflammation leading to atopic dermatitis.

introduction1,2,4-Trihydroxyanthraquinone, commonly called purpurin, is an anthraquinone that is a naturally occurring red/yellow dye. Purpurin is a highly antioxidative anthraquinone and previous studies have reported antibacterial, anti-tumor, and anti-oxidation activities in cells and animals. However, the skin inflammatory inhibition activity mechanism study of purpurin has not been elucidated in vitro.

methodsIn this study, we investigated the anti-inflammatory activity of purpurin in HaCaT (human keratinocyte) cell lines stimulated with a mixture of tumor necrosis factor-alpha (TNF-α)/Interferon-gamma (IFN-γ). The inhibitory effect of Purpurin on cytokines (IL-6, IL-8, and IL-1β) and chemokine (TARC, MDC, and RANTES) was confirmed by ELISA and RT-qPCR. We investigated each signaling pathway and the action of inhibitors through western blots.

resultsThe expression levels of cytokines and chemokines were dose-dependently suppressed by purpurin treatment in TNF-α/IFN-γ-induced HaCaT cells from ELISA and real-time PCR. Purpurin also inhibited protein kinase B (AKT), mitogen-activated protein kinase (MAPKs), and nuclear factor kappa-light-chain-enhancer of activated B (NF-κB) activation in TNF-α/IFN-γ-stimulated HaCaT cells. Additionally, there was a synergistic effect when purpurin and inhibitor were applied together, and inflammation was dramatically reduced.

conclusionTherefore, these results demonstrate that purpurin exhibits anti-inflammatory and anti-atopic dermatitis activity in HaCaT cells.

Indexed as

AnthraquinonesDermatitis, AtopicHaCaT CellsInterferon-gammaTumor Necrosis Factor-alphaAnimalsCytokinesHumansInflammationAnthraquinonesCytokinesInterferon-gammapurpurin anthraquinoneTumor Necrosis Factor-alphaatopic dermatitiscytokineHaCaTinflammatoryNF-κBpurpurin

Identifiers

PMID35794850
PMCPMC9274433

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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.