Cited by 163Virus-based gene therapy researchRNA Interference and Gene DeliveryBarrier Structure and Function Studies

Liver-specific microRNA-122 target sequences incorporated in AAV vectors efficiently inhibits transgene expression in the liver

Open access
Qiao, C, Yuan, Z, Li, J, He, B, Zheng, H, Mayer, C, Li, J, Xiao, X·2011·Gene Therapy

Abstract

Vectors based on adeno-associated virus (AAV) are effective in gene delivery in vivo. Tissue-specific gene expression is often needed to minimize ectopic expression in unintended cells and undesirable consequences. Here, we investigated whether incorporation of target sequences of tissue-specific microRNA (miRNA) into AAV vectors could inhibit ectopic expression in tissues such as the liver and hematopoietic cells. First we inserted liver-specific miR-122 target sequences (miR-122T) into the 3'-untranslated region (UTR) of a number of AAV vectors. After intravenous delivery in mice, we found that five copies of the 20mer miR-122T reduced liver expression of luciferase by 50-fold and β-galactosidase (LacZ) by 70-fold. Five copies of miR-122T also reduced mRNA levels of a secretable protein (myostatin propeptide) from the AAV vector plasmid by 23-fold in the liver. However, gene expression in other tissues, including the heart was not inhibited. Similarly, we inserted four copies of miR-142-3pT or miR-142-5pT, both hematopoietic lineage-specific, into the 3'-UTR of the AAV-luciferase vector. We wished to see whether they could prolong transgene expression by inhibiting expression in antigen-presenting cells. However, in vivo luciferase gene expression in major tissues declined with time, regardless of the miR-142 target sequences used. Quantitative analysis of the vector DNA in various tissues revealed that the decline of transgene expression in vivo was mainly because of promoter shut-off other than loss of AAV-transduced cells by immune destruction. Moreover, transgene expression was not detected in circulating mononuclear cells after delivering AAV9 vector with or without miR142T. These results demonstrate that liver-specific miR-122 target sequence in AAV vectors was highly efficient in reducing liver expression, whereas hematopoietic miR-142 target sequences were ineffective in preventing decline of AAV vector gene expression in nonhematopoietic tissues resulted from promoter shut-off.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/gt.2010.157

Cites

62 of 62 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Incorporation of 5 copies of miR-122 target sequences has shown enhanced inhibitory effects over 3 copies in the liver of ICR mice, while without any significant change in transduction efficiency in 293 T cells.

    “Incorporation of 5 copies of miR-122 target sequences has shown enhanced inhibitory effects over 3 copies in the liver of ICR mice, while without any significant change in transduction efficiency in 293 T cells [33].”

    From Designing and optimizing AAV-mediated gene therapy for neurodegenerative diseases: from bench to bedside (2024) · cites this paper as [33]

    The Results report greater reductions in liver luciferase expression with five miR-122 target copies than with three after plasmid injection; the Methods identify the mice used for hydrodynamic injection as ICR mice (pages unavailable). The Results also report no difference in luciferase activity in transfected 293 cells, but the paper does not identify them as 293T cells or measure transduction efficiency in that comparison. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Qiao, C., Yuan, Z., Li, J., He, B., Zheng, H., Mayer, C., Li, J., & Xiao, X.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
  • Qiao, C
  • Xiao, X
ORCID
He, B
Venue
Gene Therapy
Published
2010-12-09
Volume
18
Issue
4
Pages
403-410
ISSN
  • 0969-7128 (ISSN-L)
  • 1476-5462
OpenAlex
W2086500311
Cited by
163
References
62
Citations by year
2026: 11 · 2025: 15 · 2024: 16 · 2023: 10 · 2022: 7 · 2021: 13 · 2020: 8 · 2019: 9 · 2018: 7 · 2017: 10 · 2016: 6 · 2015: 12 · 2014: 11 · 2013: 11 · 2012: 8
FWCI
4.86
Type
journal article
Language
en
Open access
Locations
  • Gene Therapy (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR45967, R01AR045967, AR 56394, R01AR056394)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
adeno-associated virus vectors, miR-122, miR-142, 3' untranslated region, liver-specific gene expression, tissue-specific gene expression, ectopic expression, hematopoietic cells, AAV9, myostatin propeptide, intravenous gene delivery
MeSH terms
Dependovirus, Animals, Antigen-Presenting Cells, beta-Galactosidase, Gene Expression Regulation, Genetic Vectors, Liver, Luciferases, Organ Specificity, Gene Transfer Techniques, Transgenes, MicroRNAs, Mice, Myostatin

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review