Issue 46, 2019

Nanoparticle mediated silencing of tenascin C in hepatic stellate cells: effect on inflammatory gene expression and cell migration

Abstract

Chronic liver dysfunction often begins with hepatic fibrosis. A pivotal event in the progression of liver fibrosis and cirrhosis is hepatic stellate cell (HSC) activation and secretion of extracellular matrix proteins, including tenascin-C (TnC). TnC is often chosen as a therapeutic target for treatment of liver disease. TnC is minimally detected in healthy tissue, but is transiently expressed during tissue injury, and plays a critical role in fibrogenesis and tumorigenesis. siRNA therapy is a promising alternative to knock-down proteins relevant for fibrosis therapy. This study describes the application of a functionalized mesoporous silica nanoparticles (MSNs) for the efficient transport and delivery of siTnC in HSCs. Silencing experiments in HSCs demonstrate the effective reduction of TnC mRNA and protein levels. In addition, attenuation of TnC expression due to the cellular uptake and release of siTnC from MSNs resulted in decreases of inflammatory cytokine levels and hepatocyte migration. We envision this siTnC-MSN platform as a promising alternative to evaluate siRNA therapy of chronic liver disease in preclinical trials.

Graphical abstract: Nanoparticle mediated silencing of tenascin C in hepatic stellate cells: effect on inflammatory gene expression and cell migration

Supplementary files

Article information

Article type
Paper
Submitted
28 août 2019
Accepted
31 oct. 2019
First published
02 nov. 2019

J. Mater. Chem. B, 2019,7, 7396-7405

Nanoparticle mediated silencing of tenascin C in hepatic stellate cells: effect on inflammatory gene expression and cell migration

J. L. Vivero-Escoto, H. Vadarevu, R. Juneja, L. W. Schrum and J. H. Benbow, J. Mater. Chem. B, 2019, 7, 7396 DOI: 10.1039/C9TB01845J

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