Evidence map›Paper›PMID 25317535›Full record

ArticleMarine drugs2014

Anti-inflammation activities of mycosporine-like amino acids (MAAs) in response to UV radiation suggest potential anti-skin aging activity.

Sung-Suk Suh, Jinik Hwang, Mirye Park, Hyo Hyun Seo, Hyoung-Shik Kim, Jeong Hun Lee, Sang Hyun Moh, Taek-Kyun Lee

Open access · goldAbstract read
In one paragraph

Article in Marine drugs, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
17.8field-weighted citation impact, top 1% 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

72 citing papers in PubMed, 185 citations in OpenAlex.

  1. Article
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  7. Microalgae: revolutionizing skin repair and enhancement.Biotechnology reports (Amsterdam, Netherlands) · 2025
    Review
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  18. Applications of mycosporine-like amino acids beyond photoprotection.Applied and environmental microbiology · 2023
    Review
  19. Review
  20. Article

12 more citing papers are in PubMed but not listed here.

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 at 1 institution in 1 country.

Sung-Suk SuhSouth Sea Environment Research Department, Korea Institute of Ocean Science and Technology, Geoje 656-830, Korea. sung-suk.suh@kiost.ac.
Jinik HwangSouth Sea Environment Research Department, Korea Institute of Ocean Science and Technology, Geoje 656-830, Korea. jinike12@kiost.ac.
Mirye ParkSouth Sea Environment Research Department, Korea Institute of Ocean Science and Technology, Geoje 656-830, Korea. mirye@kiost.ac.
Hyo Hyun SeoAnti-Aging Research Institute of Bio-FD&C Co. Ltd, Incheon 406-840, Korea. hhseo@biofdnc.com.
Hyoung-Shik KimAnti-Aging Research Institute of Bio-FD&C Co. Ltd, Incheon 406-840, Korea. hskim@biofdnc.com.
Jeong Hun LeeAnti-Aging Research Institute of Bio-FD&C Co. Ltd, Incheon 406-840, Korea. jhlee@biofdnc.com.
Sang Hyun MohAnti-Aging Research Institute of Bio-FD&C Co. Ltd, Incheon 406-840, Korea. shmoh@biofdnc.com.
Taek-Kyun LeeSouth Sea Environment Research Department, Korea Institute of Ocean Science and Technology, Geoje 656-830, Korea. tklee@kiost.ac.
Korea Institute of Ocean Science and Technology · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Certain photosynthetic marine organisms have evolved mechanisms to counteract UV-radiation by synthesizing UV-absorbing compounds, such as mycosporine-like amino acids (MAAs). In this study, MAAs were separated from the extracts of marine green alga Chlamydomonas hedleyi using HPLC and were identified as porphyra-334, shinorine, and mycosporine-glycine (mycosporine-Gly), based on their retention times and maximum absorption wavelengths. Furthermore, their structures were confirmed by triple quadrupole MS/MS. Their roles as UV-absorbing compounds were investigated in the human fibroblast cell line HaCaT by analyzing the expression levels of genes associated with antioxidant activity, inflammation, and skin aging in response to UV irradiation. The mycosporine-Gly extract, but not the other MAAs, had strong antioxidant activity in the 2,2-diphenyl-1-picryhydrazyl (DPPH) assay. Furthermore, treatment with mycosporine-Gly resulted in a significant decrease in COX-2 mRNA levels, which are typically increased in response to inflammation in the skin, in a concentration-dependent manner. Additionally, in the presence of MAAs, the UV-suppressed genes, procollagen C proteinase enhancer (PCOLCE) and elastin, which are related to skin aging, had increased expression levels equal to those in UV-mock treated cells. Interestingly, the increased expression of involucrin after UV exposure was suppressed by treatment with the MAAs mycosporine-Gly and shinorine, but not porphyra-334. This is the first report investigating the biological activities of microalgae-derived MAAs in human cells.

Indexed as

Amino AcidsAnti-Inflammatory AgentsCell LineChlamydomonasChlorophytaCyclohexanolsCyclohexanonesCyclohexylaminesCyclooxygenase 2ElastinExtracellular Matrix ProteinsFibroblastsGlycineGlycoproteinsHumansInflammationAmino AcidsAnti-Inflammatory AgentsCyclohexanolsCyclohexanonesCyclohexylaminesCyclooxygenase 2ElastinExtracellular Matrix ProteinsGlycineGlycoproteinsmycosporine-2-glycinePCOLCE protein, humanporphyra-334shinorine

Identifiers

PMID25317535
PMCPMC4210892
OpenAlexW2017817667

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.