Corneal stroma PDGF blockade and myofibroblast development.

Abstract:

:Myofibroblast development and haze generation in the corneal stroma is mediated by cytokines, including transforming growth factor-beta (TGF-beta), and possibly other cytokines. This study examined the effects of stromal PDGF-beta blockade on the development of myofibroblasts in response to -9.0 diopter photorefractive keratectomy in the rabbit. Rabbits that had haze generating photorefractive keratectomy (PRK, for 9 diopters of myopia) in one eye were divided into three different groups: stromal application of plasmid pCMV.PDGFRB.23KDEL expressing a subunit of PDGF receptor b (domains 2-3, which bind PDGF-B), stromal application of empty plasmid pCMV, or stromal application of balanced salt solution (BSS). The plasmids (at a concentration 1000ng/microl) or BSS was applied to the exposed stroma immediately after surgery and every 24h for 4-5 days until the epithelium healed. The group treated with pCMV.PDGFRB.23KDEL showed lower alphaSMA+ myofibroblast density in the anterior stroma compared to either control group (P

journal_name

Exp Eye Res

authors

Kaur H,Chaurasia SS,de Medeiros FW,Agrawal V,Salomao MQ,Singh N,Ambati BK,Wilson SE

doi

10.1016/j.exer.2008.12.006

subject

Has Abstract

pub_date

2009-05-01 00:00:00

pages

960-5

issue

5

eissn

0014-4835

issn

1096-0007

pii

S0014-4835(08)00442-9

journal_volume

88

pub_type

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