• ISSN 1674-8301
  • CN 32-1810/R
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Anastasia S. Proskurina, Vera S. Ruzanova, Genrikh S. Ritter, Yaroslav R. Efremov, Zakhar S. Mustafin, Sergey A. Lashin, Ekaterina A. Burakova, Alesya A. Fokina, Timofei S. Zatsepin, Dmitry A. Stetsenko, Olga Y. Leplina, Alexandr A. Ostanin, Elena R. Chernykh, Sergey S. Bogachev. Antitumor efficacy of multi-target in situ vaccinations with CpG oligodeoxynucleotides, anti-OX40, anti-PD1 antibodies, and aptamers[J]. The Journal of Biomedical Research. doi: 10.7555/JBR.36.20220052
Citation: Anastasia S. Proskurina, Vera S. Ruzanova, Genrikh S. Ritter, Yaroslav R. Efremov, Zakhar S. Mustafin, Sergey A. Lashin, Ekaterina A. Burakova, Alesya A. Fokina, Timofei S. Zatsepin, Dmitry A. Stetsenko, Olga Y. Leplina, Alexandr A. Ostanin, Elena R. Chernykh, Sergey S. Bogachev. Antitumor efficacy of multi-target in situ vaccinations with CpG oligodeoxynucleotides, anti-OX40, anti-PD1 antibodies, and aptamers[J]. The Journal of Biomedical Research. doi: 10.7555/JBR.36.20220052

Antitumor efficacy of multi-target in situ vaccinations with CpG oligodeoxynucleotides, anti-OX40, anti-PD1 antibodies, and aptamers

doi: 10.7555/JBR.36.20220052
Funds:  Research Institute of Fundamental and Clinical Immunology, Novosibirsk, 630099, Russia.
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  • Corresponding author: Sergey S. Bogachev, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev ave, Novosibirsk 630090, Russia, +7-383-363-49-63 ext.3411, E-mail: labmolbiol@mail.ru
  • Received: 2022-03-14
  • Revised: 2022-07-04
  • Accepted: 2022-07-22
  • Published: 2022-11-28
  • To overcome immune tolerance to cancer, the immune system needs to be exposed to a multi-target action intervention. Here, we investigated the activating effect of CpG oligodeoxynucleotides, mesyl phosphoramidate CpG oligodeoxynucleotides, anti-OX40 antibodies, and OX40 RNA aptamers on major populations of immunocompetent cells ex vivo. Comparative analysis of the antitumor effects of in situ vaccination with CpG oligodeoxynucleotides and anti-OX40 antibodies, as well as several other combinations such as mesyl phosphoramidate CpG oligodeoxynucleotides and OX40 RNA aptamers, were conducted. Antibodies against programmed death 1 (PD1) checkpoint inhibitors or corresponding PD1 DNA aptamers were also added to vaccination regimens for analytical purposes. Four scenarios were considered: a weakly immunogenic Krebs-2 carcinoma grafted in CBA mice; a moderately immunogenic Lewis carcinoma grafted in C57Black mice; and an immunogenic A20 B cell lymphoma or an Erlich carcinoma, grafted in BALB/c mice. Adding anti-PD1 antibodies (CpG+αOX40+αPD1) to in situ vaccinations boosts the antitumor effect. When used instead of antibodies, aptamers also possess antitumor activity, although this effect was less pronounced. The strongest effect across all the tumors was observed in highly immunogenic A20 B cell lymphoma and Erlich carcinoma.


  • CLC number: R730.5, Document code: A
    The authors reported no conflict of interests.
    △These authors contributed equally to this work.
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