Comparative Analysis of Circular and Linear mRNA Vectors: Expression Efficacy and Immunization Strategies - Takeaways - MDSpire

Comparative Analysis of Circular and Linear mRNA Vectors: Expression Efficacy and Immunization Strategies

  • By

  • Vladimir M. Vakhtinskii

  • Irina L. Tutykhina

  • Alina S. Dzharullaeva

  • Daria M. Grousova

  • Ilya D. Zorkov

  • Anna A. Ilyukhina

  • Dmitrii A. Reshetnikov

  • Valentin V. Azizyan

  • Artem A. Derkaev

  • Evgeniia N. Bykonia

  • Evgeny V. Usachev

  • Denis A. Kleymenov

  • Vladimir A. Gushchin

  • Inna V. Shuliakova

  • Dmitry V. Shcheblyakov

  • Maxim M. Shmarov

  • Denis Yu. Logunov

  • Alexander L. Gintsburg

  • April 24, 2026

  • 0 min

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  • 1

    The study compares the expression efficiency and immunogenicity of linear and circular mRNA vectors for vaccine development.

  • 2

    Modified linear mRNA vectors demonstrated significantly higher expression levels in both in vitro and in vivo settings compared to circular vectors.

  • 3

    Active immunization studies showed that circular mRNA vectors had equal immunogenicity and protective activity to linear vectors.

  • 4

    In passive immunization models, linear vectors provided significantly better protection than circular vectors due to higher protein expression.

  • 5

    The research highlights the need for further studies on the immunogenicity and protective activity of various mRNA vector types.

Original Source(s)

Comparative Analysis of Circular and Linear mRNA Vectors: Expression Efficacy and Immunization Strategies

  • by Vladimir M. Vakhtinskii, Irina L. Tutykhina, Alina S. Dzharullaeva, Daria M. Grousova, Ilya D. Zorkov, Anna A. Ilyukhina, Dmitrii A. Reshetnikov, Valentin V. Azizyan, Artem A. Derkaev, Evgeniia N. Bykonia, Evgeny V. Usachev, Denis A. Kleymenov, Vladimir A. Gushchin, Inna V. Shuliakova, Dmitry V. Shcheblyakov, Maxim M. Shmarov, Denis Yu. Logunov, Alexander L. Gintsburg

  • April 24, 2026

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