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 we...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-1m RNA 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 that butyrate 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.展开更多
文摘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-1m RNA 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 that butyrate 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.
