Selenoprotein P controls oxidative stress in cornea

Akihiro Higuchi, Kazuhiko Takahashi, Masaki Hirashima, Tetsuya Kawakita, Kazuo Tsubota

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The ocular surface is always attacked by oxidative stress, and cornea epithelial cells are supposed to have their own recovery system against oxidative stress. Therefore we hypothesized that tears supply key molecules for preventing oxidative stress in cornea. The potential target key molecule we focused is selenoprotein P (SeP). SeP is a carrier of selenium, which is an essential trace element for many animals, for oxidative stress metabolism in the organism, and was extremely expressed in lacrimal gland. An experiment was performed with SeP eye drops in a rat dry eye model, prepared by removing the lacrimal glands. The anticipated improvement in corneal dry eye index and the suppression of oxidative stress markers were observed in SeP eye drop group. Furthermore, the concentration of SeP was significantly higher in dry eye patients compared with normal volunteers. Collectively, we concluded that tear SeP is a key molecule to protect the ocular surface cells against environmental oxidative stress.

Original languageEnglish
Article numbere9911
JournalPLoS One
Volume5
Issue number3
DOIs
Publication statusPublished - 2010

Fingerprint

Selenoprotein P
selenoproteins
Oxidative stress
cornea
Cornea
Oxidative Stress
oxidative stress
eyes
Lacrimal Apparatus
lacrimal apparatus
Ophthalmic Solutions
Tears
Molecules
Trace Elements
Selenium
Metabolism
Rats
Healthy Volunteers
Animals
selenium

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Higuchi, A., Takahashi, K., Hirashima, M., Kawakita, T., & Tsubota, K. (2010). Selenoprotein P controls oxidative stress in cornea. PLoS One, 5(3), [e9911]. https://doi.org/10.1371/journal.pone.0009911

Selenoprotein P controls oxidative stress in cornea. / Higuchi, Akihiro; Takahashi, Kazuhiko; Hirashima, Masaki; Kawakita, Tetsuya; Tsubota, Kazuo.

In: PLoS One, Vol. 5, No. 3, e9911, 2010.

Research output: Contribution to journalArticle

Higuchi, A, Takahashi, K, Hirashima, M, Kawakita, T & Tsubota, K 2010, 'Selenoprotein P controls oxidative stress in cornea', PLoS One, vol. 5, no. 3, e9911. https://doi.org/10.1371/journal.pone.0009911
Higuchi, Akihiro ; Takahashi, Kazuhiko ; Hirashima, Masaki ; Kawakita, Tetsuya ; Tsubota, Kazuo. / Selenoprotein P controls oxidative stress in cornea. In: PLoS One. 2010 ; Vol. 5, No. 3.
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