Article Publish Status: FREE
Abstract Title:

Suppression of fibrosis in human pterygium fibroblasts by butyrate and phenylbutyrate.

Abstract Source:

Int J Ophthalmol. 2017 ;10(9):1337-1343. Epub 2017 Sep 18. PMID: 28944189

Abstract Author(s):

Yuka Koga, Noriaki Maeshige, Hiroto Tabuchi, Mikiko Uemura, Michiko Aoyama-Ishikawa, Makoto Miyoshi, Chikako Katakami, Makoto Usami

Article Affiliation:

Yuka Koga


AIM: To evaluate the antifibrogenic effects of butyrate or phenylbutyrate, a chemical derivative of butyrate, in human pterygium fibroblasts.

METHODS: Human pterygium fibroblasts obtained from patient pterygium tissue were treated with butyrate or phenylbutyrate for 48h. Expression ofα-smooth muscle actin, collagen I, collagen III and matrix metalloproteinase-1 mRNA was measured by quantitative real-time reverse transcription polymerase chain reaction, and acetylated histone was evaluated by Western blotting.

RESULTS: Butyrate inhibitedα-smooth muscle actin, type III collagen and matrix metalloproteinase-1 expressions, and phenylbutyrate inhibited types I and III collagen and matrix metalloproteinase-1 expressions without changing cell viability as well as both of these increased histone acetylation. These results suggested thatbutyrate and phenylbutyrate suppress fibrosis through a mechanism involving histone deacetylase inhibitor.

CONCLUSION: This indicates that butyrate or phenylbutyrate have antifibrogenic effects in human pterygium fibroblasts and could be novel types of prophylactic and/or therapeutic drugs for pterygium, especially phenylbutyrate, which does not have the unpleasant smell associated with butyrate.

Study Type : In Vitro Study

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