JOURNAL DESCRIPTION
The Medical Radiology and Radiation Safety journal ISSN 1024-6177 was founded in January 1956 (before December 30, 1993 it was entitled Medical Radiology, ISSN 0025-8334). In 2018, the journal received Online ISSN: 2618-9615 and was registered as an electronic online publication in Roskomnadzor on March 29, 2018. It publishes original research articles which cover questions of radiobiology, radiation medicine, radiation safety, radiation therapy, nuclear medicine and scientific reviews. In general the journal has more than 30 headings and it is of interest for specialists working in thefields of medicine¸ radiation biology, epidemiology, medical physics and technology. Since July 01, 2008 the journal has been published by State Research Center - Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency. The founder from 1956 to the present time is the Ministry of Health of the Russian Federation, and from 2008 to the present time is the Federal Medical Biological Agency.
Members of the editorial board are scientists specializing in the field of radiation biology and medicine, radiation protection, radiation epidemiology, radiation oncology, radiation diagnostics and therapy, nuclear medicine and medical physics. The editorial board consists of academicians (members of the Russian Academy of Science (RAS)), the full member of Academy of Medical Sciences of the Republic of Armenia, corresponding members of the RAS, Doctors of Medicine, professor, candidates and doctors of biological, physical mathematics and engineering sciences. The editorial board is constantly replenished by experts who work in the CIS and foreign countries.
Six issues of the journal are published per year, the volume is 13.5 conventional printed sheets, 88 printer’s sheets, 1.000 copies. The journal has an identical full-text electronic version, which, simultaneously with the printed version and color drawings, is posted on the sites of the Scientific Electronic Library (SEL) and the journal's website. The journal is distributed through the Rospechat Agency under the contract № 7407 of June 16, 2006, through individual buyers and commercial structures. The publication of articles is free.
The journal is included in the List of Russian Reviewed Scientific Journals of the Higher Attestation Commission. Since 2008 the journal has been available on the Internet and indexed in the RISC database which is placed on Web of Science. Since February 2nd, 2018, the journal "Medical Radiology and Radiation Safety" has been indexed in the SCOPUS abstract and citation database.
Brief electronic versions of the Journal have been publicly available since 2005 on the website of the Medical Radiology and Radiation Safety Journal: http://www.medradiol.ru. Since 2011, all issues of the journal as a whole are publicly available, and since 2016 - full-text versions of scientific articles. Since 2005, subscribers can purchase full versions of other articles of any issue only through the National Electronic Library. The editor of the Medical Radiology and Radiation Safety Journal in accordance with the National Electronic Library agreement has been providing the Library with all its production since 2005 until now.
The main working language of the journal is Russian, an additional language is English, which is used to write titles of articles, information about authors, annotations, key words, a list of literature.
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The two-year impact factor of RISC, according to data for 2017, was 0.439, taking into account citation from all sources - 0.570, and the five-year impact factor of RISC - 0.352.
Medical Radiology and Radiation Safety. 2023. Vol. 68. № 3
DOI: 10.33266/1024-6177-2023-68-3-5-10
N.Yu. Vorobyeva1, 2, A.A. Osipov2, A.K. Chigasova3, M.V. Pustovalova1, 4,
D.I. Kabanov1, V.G. Barchukov1, O.A. Kochetkov1, A.N. Osipov1, 2
Comparative Study of Changes in the γh2ax and 53bp1 Foci Number in Human Mesenchymal Stromale Cells Incubated with 3H-thymidine or Tritiated Water
1 A.I. Burnazyan Federal Medical Biophysical Center, Moscow, Russia
2 N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences Moscow, Russia
3 Institute of Biochemical Physics of the Russian Academy of Sciences, Moscow, Russia
4 Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, Russia
Contact person: N.Yu. Vorobyeva, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
Purpose: Comparative study of changes in the number of foci of DNA (DSB) marker proteins (γH2AX and 53BP1) in human mesenchymal stromal cells (MSCs) incubated with 3H-thymidine or HTO for 24, 48, and 72 h.
Material and methods: We used the primary culture of human MSCs of passage 5–6, obtained from the collection of LLC “BioloT” (Russia). A sterile solution of 3H-thymidine or HTO with a specific activity of 100 to 400 MBq/l was added to the nutrient medium and incubated under standard conditions of a CO2 incubator for 24, 48, and 72 hours. To quantify γH2AX foci and the proportion of proliferating cells using antibodies to γH2AX, 53BP1 and Ki67 (a marker protein for cell proliferation), were used, respectively. Statistical analysis of the obtained data was carried out using the statistical software package Statistica 8.0 (StatSoft). To assess the significance of differences between samples, Student’s t-test was used.
Results: Incubation of MSCs with 3H-thymidine with a specific radioactivity of 100-400 MBq/l in the first 24 hours leads to a dose-dependent increase in the number of γH2AX and 53BP1 foci. With a further increase in the incubation time to 48 h and 72 h, a saturation effect is observed ‒ the number of foci reaches a plateau. A statistically significant increase in the number of γH2AX and 53BP1 foci in MSCs incubated with HTO was observed only in actively proliferating cells during the first 24 h of incubation in a medium with specific radioactivity of 300 and 400 MBq/l, after which, with a decrease in proliferative activity, it decreased to control values. Calculations made on the basis of the results of a quantitative analysis of γH2AX and 53BP1 foci after 24 h of incubation of MSCs with tritium compounds obtained in the course of the work show, that under the influence of 3H-thymidine ~ 6 times more DNA double-strand breaks are induced than under the influence of HTO.
Keywords: mesenchymal stromal cells, γH2AX, 53BP1, DNA double-strand breaks, cell proliferation, tritium, incubation
For citation: Vorobyeva NYu, Osipov AA, Chigasova AK, Pustovalova MV, Kabanov DI, Barchukov V., Kochetkov OA, Osipov AN. Comparative Study of Changes in the γh2ax and 53bp1 Foci Number in Human Mesenchymal Stromale Cells Incubated with 3h-thymidine or Tritiated Water. Medical Radiology and Radiation Safety. 2023;68(3):5–10. (In Russian). DOI: 10.33266/1024-6177-2023-68-3-5-10
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PDF (RUS) Full-text article (in Russian)
Conflict of interest. The authors declare no conflict of interest.
Financing. The work was carried out with the support of the RGNF (project No. 22-2400490).
Contribution. Article was prepared with equal participation of the authors.
Article received: 20.01.2022. Accepted for publication: 25.02.2023.