Cited by 24RNA Interference and Gene DeliveryMolecular Biology Techniques and ApplicationsRNA Research and Splicing

In vivo protein expression from mRNA delivered into adult rat brain

Abstract

The expression of proteins after local mRNA delivery has a great potential for analysis of protein function in vivo. To explore the feasibility of such a technique within the central nervous system (CNS), we delivered luciferase-encoding mRNA into the rat brain. The tissue distribution and stability of injected mRNA were analyzed using in situ detection and Northern hybridization, while luciferase expression was measured by enzymatic assay. Following intracerebral injection of lipofectin-complexed mRNA, expression of luciferase was detectable as early as 1 h, was maximal at 2-3 h, but was below the level of detection by 24 h. The extent of luciferase expression correlated with the amount of mRNA delivered. Luciferase expression was higher when lipofectin-complexed rather than naked mRNA was injected. In addition, the luciferase expression increased significantly by adding a 50 nt-long poly(A) tail to the 3'-end of the mRNA. Delivering mRNA to the cerebral cortex or hippocampus resulted in measurable luciferase activity at the injection sites but not in adjacent areas. Accordingly, the luciferase mRNA was also localized to the injection site, and the amount of intact transcript was significantly higher at 3 h compared to 24 h after injection. These results demonstrate that in vivo mRNA delivery is a feasible technique for immediate, transient overexpression of desired proteins in the CNS and, therefore, can serve as a model system to study the neurobiological effects of specif…

Integrity signals

Registry

Crossref · 10.1016/s0165-0270(00)00355-1

Cites

43 of 43 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • Lipofectin-complexed luciferase mRNA can transfect brain tissue after intracerebral injections into rat brains.

    “Kariko et al. (2001) demonstrated that lipofectin complexed luciferase mRNA can transfect brain tissue after intracerebral injections into rat brains (10).”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Karikó, K., Keller, J. M., Harris, V. A., Langer, D. J., & Welsh, F. A.
Affiliations
University of Pennsylvania (US)
Venue
Journal of Neuroscience Methods
Publisher
Elsevier BV
Published
2001-01
Volume
105
Issue
1
Pages
77-86
ISSN
0165-0270 (ISSN-L)
OpenAlex
W2066273354
Cited by
24
References
43
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 4 · 2022: 2 · 2021: 2 · 2020: 1 · 2018: 1 · 2015: 2 · 2013: 1 · 2012: 1
FWCI
0.12
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neuroscience Methods (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Pennsylvania
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (NS-08803, NS29331, R01NS029331)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Molecular Biology Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
Keywords
luciferase expression, lipofectin, poly(A) tail, mRNA stability, central nervous system, cerebral cortex, hippocampus, local gene delivery, rat brain
MeSH terms
Animals, Brain, Gene Expression Regulation, Hippocampus, Luciferases, Male, Nerve Tissue Proteins, Phosphatidylethanolamines, RNA, Messenger, Time Factors, Blotting, Northern, Rats, Wistar, Transgenes, Rats

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