Evidence map›Paper›PMID 29131317›Full record

ArticleThe British journal of dermatology2018

Molecular photoprotection of human keratinocytes in vitro by the naturally occurring mycosporine-like amino acid palythine.

K P Lawrence, R Gacesa, P F Long, A R Young

Open access · hybridAbstract read
In one paragraph

Article in The British journal of dermatology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
9.5field-weighted citation impact, top 3% 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

36 citing papers in PubMed, 63 citations in OpenAlex.

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  19. Triplet-Energy Quenching Functions of Antioxidant Molecules.Antioxidants (Basel, Switzerland) · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

K P LawrenceSt John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, London, U.K.ORCID 0000-0003-0124-961X
R GacesaInstitute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College London, London, U.K.
P F LongInstitute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College London, London, U.K.
A R YoungSt John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, London, U.K.ORCID 0000-0002-4163-6772
King's College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSolar ultraviolet radiation (UVR) induces molecular and genetic changes in the skin, which result in skin cancer, photoageing and photosensitivity disorders. The use of sunscreens is advocated to prevent such photodamage; however, most formulations contain organic and inorganic UVR filters that are nonbiodegradable and can damage fragile marine ecosystems. Mycosporine-like amino acids (MAAs) are natural UVR-absorbing compounds that have evolved in marine species for protection against chronic UVR exposure in shallow-water habitats.

objectivesTo determine if palythine, a photostable model MAA, could offer protection against a range of UVR-induced damage biomarkers that are important in skin cancer and photoageing.

methodsHaCaT human keratinocytes were used to assess the photoprotective potential of palythine using a number of end points including cell viability, DNA damage (nonspecific, cyclobutane pyrimidine dimers and oxidatively generated damage), gene expression changes (linked to inflammation, photoageing and oxidative stress) and oxidative stress. The antioxidant mechanism was investigated using chemical quenching and Nrf2 pathway activation assays.

resultsPalythine offered statistically significant protection (P < 0·005) against all end points tested even at extremely low concentrations (0·3% w/v). Additionally, palythine was found to be a potent antioxidant, reducing oxidatively generated stress, even when added after exposure.

conclusionsPalythine is an extremely effective multifunctional photoprotective molecule in vitro that has potential to be developed as a natural and biocompatible alternative to currently approved UVR filters.

Indexed as

AntioxidantsBiomarkersCell DeathCells, CulturedCell SurvivalCyclohexanolsDNA DamageGene ExpressionGlycineHumansIn Vitro TechniquesKeratinocytesOxidative StressRadiation DosageSkin AgingSkin NeoplasmsAntioxidantsBiomarkersCyclohexanolsGlycinepalythineSunscreening Agents

Identifiers

PMID29131317
PMCPMC6032870
OpenAlexW2769031448

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.