Visualization of Brain Tumors with Infrared-Labeled Aptamers for Fluorescence-Guided Surgery

Gliomas remain challenging brain tumors to treat due to their infiltrative nature. Accurately identifying tumor boundaries during surgery is crucial for successful resection. This study introduces an innovative intraoperative visualization method utilizing surgical fluorescence microscopy to precisely locate tumor cell dissemination. Here, the focus is on the development of a novel contrasting agent (IR-Glint) for intraoperative visualization of human glial tumors comprising infrared-labeled Glint aptamers. The specificity of IR-Glint is assessed using flow cytometry and microscopy on primary cell cultures. In vivo effectiveness is studied on mouse and rabbit models, employing orthotopic xenotransplantation of human brain gliomas with various imaging techniques, including PET/CT, in vivo fluorescence visualization, confocal laser scanning, and surgical microscopy. The experiments validate the potential of IR-Glint for the intraoperative visualization of gliomas using infrared imaging. IR-Glint penetrates the blood-brain barrier and can be used for both intravenous and surface applications, allowing clear visualization of the tumor. The surface application directly to the brain reduces the dosage required and mitigates potential toxic effects on the patient. The research shows the potential of infrared dye-labeled aptamers for accurately visualizing glial tumors during brain surgery. This novel aptamer-assisted fluorescence-guided surgery (AptaFGS) may pave the way for future advancements in the field of neurosurgery.

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Publication Details

Journal
Journal of the American Chemical Society
Published
2024-08-26
DOI
https://doi.org/10.1021/jacs.4c06716
Citations
11
Primary Topic
Nanoplatforms for cancer theranostics
Type
article
Field-Weighted Citation Impact
2.03

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article

Visualization of Brain Tumors with Infrared-Labeled Aptamers for Fluorescence-Guided Surgery

D.S. Grek, P. G. Shnyakin, Galina S. Zamay, Кirill V. Belugin et al.
11 citations
Journal of the American Chemical Society
Nanoplatforms for cancer theranostics
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article

Visualization of Brain Tumors with Infrared-Labeled Aptamers for Fluorescence-Guided Surgery

D.S. Grek, P. G. Shnyakin, Galina S. Zamay, Кirill V. Belugin, Maxim V. Berezovski, Natalia A. Luzan, Olga S. Kolovskaya, Vadim Kumeiko, Olga Kuziakova, Anastasia A. Koshmanova, Elena D. Nikolaeva, Е. В. Семичев, Irina A. Shchugoreva, Victoriya D. Fedotovskaya, Kirill A. Lukyanenko, Daria A. Kirichenko, Polina V. Artyushenko, А. К. Кириченко, В. И. Бахтина, Nikolay А. Tokarev, А. А. Народов, A. R. Gorbushin, В. А. Светличный, И. Н. Лапин, Yury E. Glazyrin, P. А. Shesternya, Dmitry V. Veprintsev, Vasily S. Mezko, Р. А. Зуков, N. G. Chanchikova, Vladimir А. Khorzhevskii, Felix N. Tomilin, Alexey A. Mohov, Tatiana N. Zamay, Aleksandra Kosinova, Anna Kichkailo, Alexey V. Krat, Ivan I. Voronkovskii
article en
11 citations

Abstract

Gliomas remain challenging brain tumors to treat due to their infiltrative nature. Accurately identifying tumor boundaries during surgery is crucial for successful resection. This study introduces an innovative intraoperative visualization method utilizing surgical fluorescence microscopy to precisely locate tumor cell dissemination. Here, the focus is on the development of a novel contrasting agent (IR-Glint) for intraoperative visualization of human glial tumors comprising infrared-labeled Glint aptamers. The specificity of IR-Glint is assessed using flow cytometry and microscopy on primary cell cultures. In vivo effectiveness is studied on mouse and rabbit models, employing orthotopic xenotransplantation of human brain gliomas with various imaging techniques, including PET/CT, in vivo fluorescence visualization, confocal laser scanning, and surgical microscopy. The experiments validate the potential of IR-Glint for the intraoperative visualization of gliomas using infrared imaging. IR-Glint penetrates the blood-brain barrier and can be used for both intravenous and surface applications, allowing clear visualization of the tumor. The surface application directly to the brain reduces the dosage required and mitigates potential toxic effects on the patient. The research shows the potential of infrared dye-labeled aptamers for accurately visualizing glial tumors during brain surgery. This novel aptamer-assisted fluorescence-guided surgery (AptaFGS) may pave the way for future advancements in the field of neurosurgery.

Journal of the American Chemical SocietyVol. 146(36)
University of Ottawa (CA), National Research Tomsk State University (RU), Far Eastern Federal University (RU), Krasnoyarsk Scientific Center (RU), Institute of Chemistry and Chemical Technology (RU), Krasnoyarsk State Medical University (RU), Advanced Materials Technology (United States) (US), Institute of Physics (RU), Krasnoyarsk Regional Clinical Hospital (RU), TechLab (United States) (US), A.V. Zhirmunsky National Scientific Center of Marine Biology Far Eastern Branch of the Russian Academy of Sciences (RU), Far Eastern Branch of the Russian Academy of Sciences (RU), Institute of Physics of the Slovak Academy of Sciences (SK), Federal Medical-Biological Agency (RU)
University of Ottawa, Siberian Branch, Russian Academy of Sciences, Ministry of Science and Higher Education of the Russian Federation, Ministry of Health of the Russian Federation, Natural Sciences and Engineering Research Council of Canada, Russian Academy of Sciences
Openalex Percentile: Top 14%
Nanoplatforms for cancer theranostics
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