TGF-beta1 antisense therapy modulates expression of matrix metalloproteinases in keloid-derived fibroblasts.
Transforming growth factor-beta1 (TGF-beta1) has been identified as an important regulator of wound healing. Recent developments in molecular therapy offer exciting prospects for the modulation of wound healing, specifically those targeting TGF-beta1. The purpose of this study was to analyze the effect of TGF-beta1 targeting on the expression of matrix metalloproteinases (MMPs) in fibroblasts cultured from earlobe keloids. The expression of MMP-2 and -9 in tissue samples from keloids was investigated by immunohistochemistry. The effect of TGF-beta1 targeting using antisense oligonucleotides on the expression of MMPs in keloid-derived fibroblasts was analysed by ELISA and multiplex RT-PCR. Immunohistochemical studies demonstrated an increased expression of MMP protein in tissue samples from keloids compared to normal human skin. Antisense TGF-beta1 oligonucleotide treatment significantly downregulated MMP-9 secretion in vitro. In conclusion, TGF-beta1 antisense oligonucleotide technology may be a potential therapeutic option for the inhibition of proteolytic tissue destruction in keloids.
Department of Otolaryngology, Head and Neck Surgery, University Hospital of Mannheim, Mannheim, Germany. haneen.sadick@hno.ma.uni-heidelberg.de
H
H
Sadick
A
A
Herberger
K
K
Riedel
G
G
Bran
U
U
Goessler
K
K
Hoermann
F
F
Riedel
D005347:Fibroblasts / Q000187:drug effects* / Q000201:enzymology* / Q000473:pathology; D015971:Gene Expression Regulation, Enzymologic / Q000187:drug effects; D006801:Humans; D007150:Immunohistochemistry; D007627:Keloid / Q000201:enzymology* / Q000473:pathology*; D020778:Matrix Metalloproteinase 2 / Q000378:metabolism; D020780:Matrix Metalloproteinase 9 / Q000235:genetics / Q000378:metabolism; D020782:Matrix Metalloproteinases / Q000378:metabolism*; D016376:Oligonucleotides, Antisense / Q000494:pharmacology*; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D013347:Subcellular Fractions; D053773:Transforming Growth Factor beta1 / Q000037:antagonists & inhibitors*
D016376:Oligonucleotides, Antisense; D012333:RNA, Messenger; D053773:Transforming Growth Factor beta1; D020782:Matrix Metalloproteinases; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9