Cited by 41Skin Protection and AgingPorphyrin Metabolism and DisordersPhotodynamic Therapy Research Studies

The Response of Human Skin Commensal Bacteria as a Reflection of UV Radiation: UV-B Decreases Porphyrin Production

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Wang, Yanhan, Zhu, Wenhong, Shu, Muya, Jiang, Yong, Gallo, Richard L., Liu, Yu-Tsueng, Huang, Chun-Ming·2012·PLoS ONE

Abstract

Recent global radiation fears reflect the urgent need for a new modality that can simply determine if people are in a radiation risk of developing cancer and other illnesses. Ultraviolet (UV) radiation has been thought to be the major risk factor for most skin cancers. Although various biomarkers derived from the responses of human cells have been revealed, detection of these biomarkers is cumbersome, probably requires taking live human tissues, and varies significantly depending on human immune status. Here we hypothesize that the reaction of Propionibacterium acnes (P. acnes), a human resident skin commensal, to UV radiation can serve as early surrogate markers for radiation risk because the bacteria are immediately responsive to radiation. In addition, the bacteria can be readily accessible and exposed to the same field of radiation as human body. To test our hypothesis, P. acnes was exposed to UV-B radiation. The production of porphyrins in P. acnes was significantly reduced with increasing doses of UV-B. The porphyrin reduction can be detected in both P. acnes and human skin bacterial isolates. Exposure of UV-B to P. acnes- inoculated mice led to a significant decrease in porphyrin production in a single colony of P. acnes and simultaneously induced the formation of cyclobutane pyrimidine dimers (CPD) in the epidermal layers of mouse skin. Mass spectrometric analysis via a linear trap quadrupole (LTQ)-Orbitrap XL showed that five peptides including an internal peptide (THLPTGIVVSCQNER) of a peptide chain release factor 2 (RF2) were oxidized by UV-B. Seven peptides including three internal peptides of 60 kDa chaperonin 1 were de-oxidized by UV-B. When compared to UV-B, gamma radiation also decreased the porphyrin production of P. acnes in a dose-dependent manner, but induced a different signature of protein oxidation/de-oxidation. We highlight that uncovering response of skin microbiome to radiation will facilitate the development of pre-symptomatic diagnosis of radiation risk in a battlefield exposure, nuclear accidents, terrorist attacks, or cancer imaging/therapy.

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  • Ultraviolet rays directly affect cutaneous propionibacteria such as Propionibacterium acnes by reducing their porphyrin production.

    “Porphyrins play a vital role in the function of hemoglobin, ultraviolet rays also directly affect cutaneous propionibacteria such as Propionibacterium acnes by reducing their porphyrin production (Wang et al. 2012).”

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  1. [44]McGinley KJ, Webster GF, Leyden JJ (1978) Regional variations of cutaneous propionibacteria. Appl Environ Microbiol 35: 62– 66. 623473 PMC242779

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Authors
Wang, Y., Zhu, W., Shu, M., Jiang, Y., Gallo, R. L., Liu, Y.-T., & Huang, C.-M.
Affiliations
  • University of California San Diego (US)
  • Sanford Burnham Prebys Medical Discovery Institute (US)
Corresponding author
  • Liu, Yu-Tsueng
  • Huang, Chun-Ming
Venue
PLoS ONE
Published
2012-10-25
Volume
7
Issue
10
Pages
e47798
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2068985515
Cited by
41
References
58
Citations by year
2026: 3 · 2025: 3 · 2024: 6 · 2023: 3 · 2022: 3 · 2021: 6 · 2020: 6 · 2019: 4 · 2018: 3 · 2017: 1 · 2016: 2 · 2013: 1
FWCI
0.40
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (R01AI067395, R21AI088147, R01AI083358)
Topics
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Porphyrin Metabolism and Disorders
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Photodynamic Therapy Research Studies
Keywords
Propionibacterium acnes, UV-B radiation, skin commensal bacteria, radiation biomarkers, skin microbiome, cyclobutane pyrimidine dimers, protein oxidation, peptide oxidation, RF2, gamma radiation, skin cancer risk, presymptomatic diagnosis
MeSH terms
Amino Acid Sequence, Animals, Dose-Response Relationship, Radiation, Humans, Molecular Sequence Data, Neoplasms, Peptides, Porphyrins, Propionibacterium acnes, Skin, Spectrometry, Fluorescence, Ultraviolet Rays, Mice

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