Evidence map›Paper›PMID 32431001›Full record

SynthesisPhotodermatology, photoimmunology & photomedicine2020

The expression of opsins in the human skin and its implications for photobiomodulation: A Systematic Review.

Susie Suh, Elliot H Choi, Natasha Atanaskova Mesinkovska

Open access · bronzeAbstract readSystematic Review
In one paragraph

Synthesis in Photodermatology, photoimmunology & photomedicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.9field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 72 citations in OpenAlex.

  1. Article
  2. The cutaneous microbiome as a dynamic photoprotective interface against solar radiation.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review of sensory systems deployed by epidermal keratinocytes.Frontiers in cell and developmental biology · 2025
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  20. Review
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

3 authors at 1 institution in 1 country.

Susie SuhDepartment of Dermatology, University of California, Irvine, Irvine, CA, USA.ORCID https://orcid.org/0000-0002-4921-1429
Elliot H ChoiDepartment of Ophthalmology, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, USA.
Natasha Atanaskova MesinkovskaDepartment of Dermatology, University of California, Irvine, Irvine, CA, USA.
University of California, Irvine · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007250 · NIGMS · CASE WESTERN RESERVE UNIVERSITY · PI HUANG, ALEX YEE-CHEN · 1985 to 2023
$33.4M
Cole Eye Institute Vision Science Training ProgramT32EY024236 · NEI · CLEVELAND CLINIC LERNER COM-CWRU · PI ANAND-APTE, BELA · 2015 to 2025
$1.0M
CRISPR/Cas9-Mediated Correction of Abca4 Mutations in a Stargardt Mouse ModelF30EY029136 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI SUH, SUSIE · 2019 to 2021
$152k
CSR NIH HHS F30EY029136CSR NIH HHS T32EY024236CSR NIH HHS T32GM007250NEI NIH HHS F30 EY029136NEI NIH HHS T32 EY024236NIGMS NIH HHS T32 GM007250
6 · The paper itself

Abstract

backgroundSkin is the organ most extensively exposed to light of a broad range of wavelengths. Several studies have reported that skin expresses photoreceptive molecules called opsins. However, the identity and functional role of opsins in the human skin remain elusive. We aim to summarize current scientific evidence on the types of opsins expressed in the skin and their biological functions.

methodsA primary literature search was conducted using PubMed to identify articles on dermal opsins found in nonhuman animals and humans.

resultsTwenty-two articles, representing, however, a non-exhaustive selection of the scientific papers published in this specific field, met the inclusion criteria. In nonhuman animals, opsins and opsin-like structures have been detected in the skin of fruit fly, zebrafish, frog, octopus, sea urchin, hogfish, and mouse, and they mediate skin color change, light avoidance, shadow reflex, and circadian photoentrainment. In humans, opsins are present in various skin cell types, including keratinocytes, melanocytes, dermal fibroblasts, and hair follicle cells. They have been shown to mediate wound healing, melanogenesis, hair growth, and skin photoaging.

conclusionDermal opsins have been identified across many nonhuman animals and humans. Current evidence suggests that opsins have biological significance beyond light reception. In nonhuman animals, opsins are involved in behaviors that are critical for survival. In humans, opsins are involved in various functions of the skin although the underlying molecular mechanisms remain unclear. Future investigation on elucidating the mechanism of dermal opsins will be crucial to expand the therapeutic benefits of photobiomodulation for various skin disorders.

Indexed as

AnimalsHumansOpsinsSkinOpsinsdermal photoreceptorextraocular photoreceptorhair folliclekeratinocytesmelanocytesopsinphotobiomodulationskin

Identifiers

PMID32431001
PMCPMC7674233
OpenAlexW3026983523

What OpenQuestion holds

Textmetadata
LicenceTDM
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.