Evidence map›Paper›PMID 26456052›Full record

ArticleFree radical biology & medicine2015

Systemic administration of the apocarotenoid bixin protects skin against solar UV-induced damage through activation of NRF2.

Shasha Tao, Sophia L Park, Montserrat Rojo de la Vega, Donna D Zhang, Georg T Wondrak

Open access · greenAbstract read
In one paragraph

Article in Free radical biology & medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

48 citing papers in PubMed, 95 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  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

5 authors at 1 institution in 1 country.

Shasha TaoDepartment of Pharmacology and Toxicology, College of Pharmacy & Arizona Cancer Center, University of Arizona, Tucson, AZ, USA.
Sophia L ParkDepartment of Pharmacology and Toxicology, College of Pharmacy & Arizona Cancer Center, University of Arizona, Tucson, AZ, USA.
Montserrat Rojo de la VegaDepartment of Pharmacology and Toxicology, College of Pharmacy & Arizona Cancer Center, University of Arizona, Tucson, AZ, USA.
Donna D ZhangDepartment of Pharmacology and Toxicology, College of Pharmacy & Arizona Cancer Center, University of Arizona, Tucson, AZ, USA. Electronic address: dzhang@pharmacy.arizona.edu.
Georg T WondrakDepartment of Pharmacology and Toxicology, College of Pharmacy & Arizona Cancer Center, University of Arizona, Tucson, AZ, USA. Electronic address: wondrak@pharmacy.arizona.edu.
University of Arizona · US

Funding

VITAMIN AP30CA023074 · NCI · UNIVERSITY OF ARIZONA · PI Dan Theodorescu · 1985 to 2026
$110.2M
SOUTHWEST ENVIRONMENTAL HEALTH SCIENCES CENTERP30ES006694 · NIEHS · UNIVERSITY OF ARIZONA · PI DEAN BILLHEIMER · 1994 to 2026
$36.7M
Training in Environmental Toxicology of Human DiseaseT32ES007091 · NIEHS · UNIVERSITY OF ARIZONA · PI Nathan J Cherrington · 1985 to 2026
$10.7M
The protective role of Nrf2 in arsenic-induced toxicity and carcinogenicityR01ES015010 · NIEHS · UNIVERSITY OF ARIZONA · PI ZHANG, DONNA D · 2006 to 2015
$3.4M
Investigation of an anti-cancer phytochemical targeting Nrf2R01CA154377 · NCI · UNIVERSITY OF ARIZONA · PI ZHANG, DONNA D · 2011 to 2015
$1.5M
Targeting colorectal carcinogenesis using a cinnamon-derived food factorR21CA166926 · NCI · UNIVERSITY OF ARIZONA · PI WONDRAK, GEORG T, ZHANG, DONNA D · 2013 to 2014
$358k
Testing feasibility of artemisinin-based synthetic-lethal suppression of skin phoR03CA167580 · NCI · UNIVERSITY OF ARIZONA · PI WONDRAK, GEORG T · 2012 to 2013
$152k
NCI NIH HHS CA023074NCI NIH HHS P30 CA023074NCI NIH HHS R01 CA154377NCI NIH HHS R01CA154377NCI NIH HHS R03 CA167580NCI NIH HHS R03CA167580NCI NIH HHS R21 CA166926NCI NIH HHS R21CA166926NIEHS NIH HHS 2R01ES015010NIEHS NIH HHS ES006694NIEHS NIH HHS ES007091NIEHS NIH HHS P30 ES006694NIEHS NIH HHS R01 ES015010NIEHS NIH HHS T32 ES007091
6 · The paper itself

Abstract

Exposure to solar ultraviolet (UV) radiation is a causative factor in skin photodamage and carcinogenesis, and an urgent need exists for improved molecular photoprotective strategies different from (or synergistic with) photon absorption. Recent studies suggest a photoprotective role of cutaneous gene expression orchestrated by the transcription factor NRF2 (nuclear factor-E2-related factor 2). Here we have explored the molecular mechanism underlying carotenoid-based systemic skin photoprotection in SKH-1 mice and provide genetic evidence that photoprotection achieved by the FDA-approved apocarotenoid and food additive bixin depends on NRF2 activation. Bixin activates NRF2 through the critical Cys-151 sensor residue in KEAP1, orchestrating a broad cytoprotective response in cultured human keratinocytes as revealed by antioxidant gene expression array analysis. Following dose optimization studies for cutaneous NRF2 activation by systemic administration of bixin, feasibility of bixin-based suppression of acute cutaneous photodamage from solar UV exposure was investigated in Nrf2(+/+) versus Nrf2(-/-) SKH-1 mice. Systemic administration of bixin suppressed skin photodamage, attenuating epidermal oxidative DNA damage and inflammatory responses in Nrf2(+/+) but not in Nrf2(-/-) mice, confirming the NRF2-dependence of bixin-based cytoprotection. Taken together, these data demonstrate feasibility of achieving NRF2-dependent cutaneous photoprotection by systemic administration of the apocarotenoid bixin, a natural food additive consumed worldwide.

Indexed as

AnimalsCarotenoidsCell SurvivalCytoprotectionFlow CytometryHumansImmunoblottingIn Situ Nick-End LabelingKeratinocytesMass SpectrometryMiceMice, Inbred C57BLMice, KnockoutNF-E2-Related Factor 2Oxidative StressReverse Transcriptase Polymerase Chain ReactionbixinCarotenoidsNF-E2-Related Factor 2Antioxidant gene expressionBixinNRF2Skin photodamageSystemic photoprotection

Identifiers

PMID26456052
PMCPMC4684723
OpenAlexW2194468360

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.