Cited by 64Cellular Mechanics and InteractionsRNA Interference and Gene DeliveryVirus-based gene therapy research

Cyclic stretch-induced reorganization of the cytoskeleton and its role in enhanced gene transfer

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Geiger, R C, Taylor, W, Glucksberg, M R, Dean, D A·2006·Gene Therapy

Abstract

Cyclic stretch is known to alter a number of cellular and subcellular processes, including those involved in nonviral gene delivery. We have previously shown that moderate equibiaxial cyclic stretch (10% change in basement membrane area, 0.5 Hz, 50% duty cycle) of human pulmonary A549 cells enhances gene transfer and expression of reporter plasmid DNA in vitro, and that this phenomena may be due to alterations in cytoplasmic trafficking. Although the path by which plasmid DNA travels through the cytoplasm toward the nucleus is not well understood, the cytoskeleton and the constituents of the cytoplasm are known to significantly hinder macromolecular diffusion. Using biochemical techniques and immunofluorescence microscopy, we show that both the microfilament and microtubule networks are significantly reorganized by equibiaxial cyclic stretch. Prevention of this reorganization through the use of cytoskeletal stabilizing compounds mitigates the stretch-induced increase in gene expression, however, depolymerization in the absence of stretch is not sufficient to increase gene expression. These results suggest that cytoskeletal reorganization plays an important role in stretch-induced gene transfer and expression.

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Crossref · 10.1038/sj.gt.3302693

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Authors
Geiger, R. C., Taylor, W., Glucksberg, M. R., & Dean, D. A.
Affiliations
Northwestern University (US)
Corresponding author
Dean, D A
Venue
Gene Therapy
Published
2006-01-26
Volume
13
Issue
8
Pages
725-731
ISSN
  • 0969-7128 (ISSN-L)
  • 1476-5462
OpenAlex
W2074939226
Cited by
64
References
42
Citations by year
2026: 4 · 2025: 2 · 2024: 3 · 2023: 1 · 2022: 4 · 2021: 3 · 2020: 5 · 2019: 1 · 2018: 1 · 2016: 1 · 2015: 1 · 2014: 2 · 2013: 2 · 2012: 9
FWCI
2.07
Type
journal article
Language
en
Open access
Locations
  • Gene Therapy (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Northwestern University
  • National Heart, Lung, and Blood Institute (HL 71643, P01HL071643, HL 076139, T32HL076139)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
Keywords
cyclic strain, cytoskeletal rearrangement, non-viral gene delivery, plasmid transfection, F-actin, microtubules, macromolecular diffusion, A549 cells, gene expression enhancement, mechanical stimulation
MeSH terms
Actins, Biological Transport, Cells, Cytoskeleton, Humans, Luciferases, Actin Cytoskeleton, Microscopy, Fluorescence, Microtubules, Stress, Mechanical, Tubulin, Genetic Therapy, Gene Expression, Electroporation, Cell Line, Tumor, Cell Size

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