Cited by 329RNA Interference and Gene DeliveryBacterial Genetics and BiotechnologyCRISPR and Genetic Engineering

A robust system for production of minicircle DNA vectors

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Kay, Mark A, He, Cheng-Yi, Chen, Zhi-Ying·2010·Nature Biotechnology

Abstract

Minicircle DNA vectors allow sustained transgene expression in quiescent cells and tissues. To improve minicircle production, we genetically modified Escherichia coli to construct a producer strain that stably expresses a set of inducible minicircle-assembly enzymes, ΦC31 integrase and I-SceI homing endonuclease. This bacterial strain produces purified minicircles in a time frame and quantity similar to those of routine plasmid DNA preparation, making it feasible to use minicircles in place of plasmids in mammalian transgene expression studies.

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Crossref · 10.1038/nbt.1708

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  • Some researchers use minicircle DNA vectors devoid of prokaryotic and antibiotic DNA sequences for their AAV production.

    “Some researchers use, therefore, minicircle DNA vectors devoid of prokaryotic and antibiotic DNA sequences for their AAV production [228].”

    From Recombinant Adeno-Associated Viral Vectors (rAAV)-Vector Elements in Ocular Gene Therapy Clinical Trials and Transgene Expression and Bioactivity Assays (2020) · cites this paper as [228]

    The paper’s section on minicircle manufacturing (page unavailable) describes minicircle vectors as lacking the bacterial plasmid backbone. It does not say that researchers use them for AAV production, and the passages do not specifically establish the absence of antibiotic DNA sequences. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Downregulating the Y-box binding protein 1 (YB1) in HEK293T cells did increase the physical titer by 47× for rAAV2, yet it failed to improve the yield for rAAV5.

    “Downregulating the Y-box binding protein 1 (YB1) in HEK293T cells did increase the physical titer by 47× for rAAV2, yet it failed to improve the yield for rAAV5 sequences for their AAV production [228].”

    From Recombinant Adeno-Associated Viral Vectors (rAAV)-Vector Elements in Ocular Gene Therapy Clinical Trials and Transgene Expression and Bioactivity Assays (2020) · cites this paper as [228]

    The passage under “A Simple And Rapid Minicircle DNA Vector Manufacturing System” (page unavailable) reports yields from bacterial minicircle DNA production, not rAAV production in HEK293T cells. Searches for YB1, HEK293T, the 47-fold rAAV2 titer increase, and rAAV5 yield found no passage addressing the claim. (LLM, conf=0.77)

    Experimental — accuracy not yet measured

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Authors
Kay, M. A., He, C.-Y., & Chen, Z.-Y.
Affiliations
Stanford Medicine (US)
Corresponding author
Kay, Mark A
Venue
Nature Biotechnology
Published
2010-11-21
Volume
28
Issue
12
Pages
1287-1289
ISSN
  • 0733-222X (ISSN-L)
  • 1087-0156
  • 1546-1696
OpenAlex
W2079903460
Cited by
329
References
18
Citations by year
2026: 12 · 2025: 20 · 2024: 21 · 2023: 20 · 2022: 17 · 2021: 28 · 2020: 20 · 2019: 22 · 2018: 19 · 2017: 17 · 2016: 28 · 2015: 24 · 2014: 31 · 2013: 23 · 2012: 16
FWCI
6.51
Type
journal article
Language
en
Open access
Locations
  • Nature Biotechnology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Heart, Lung, and Blood Institute (HL064274, R01HL064274)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
Keywords
transgene expression, gene transfer
MeSH terms
Biotechnology, Cloning, Molecular, DNA, Circular, Escherichia coli, Genetic Vectors, Plasmids

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