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Antisense proliferating cell nuclear antigen oligonucleotides inhibit intimal hyperplasia in a rat carotid artery injury model.
M Simons, … , E R Edelman, R D Rosenberg
M Simons, … , E R Edelman, R D Rosenberg
Published June 1, 1994
Citation Information: J Clin Invest. 1994;93(6):2351-2356. https://doi.org/10.1172/JCI117240.
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Antisense proliferating cell nuclear antigen oligonucleotides inhibit intimal hyperplasia in a rat carotid artery injury model.

Abstract

We have used antisense phosphorothioate oligonucleotides to define the role played by proliferating cell nuclear antigen (PCNA) in neointimal accumulation of smooth muscle cells in a rat carotid artery injury model. The short-term extraluminal delivery of 250 nmol of antisense oligonucleotides, but not control oligonucleotides, immediately after arterial injury produces a 77% suppression of PCNA mRNA after 24 h and a 52% decrease in the frequency of medial smooth muscle cells expressing PCNA after 72 h. This reduction in PCNA expression is accompanied by a 59% decrease in the frequency of proliferating medial smooth muscle cells at 3 d as measured by BudR staining and an 80% decrease in neointimal accumulation assessed morphometrically at 2 wk. Thus, the expression of PCNA is required for medial smooth muscle cell growth in vivo and for neointimal formation after arterial injury.

Authors

M Simons, E R Edelman, R D Rosenberg

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