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Koryakina E, Potetnya VI, Troshina M, Baykuzina R, Koryakin S, Lychagin A, Solovev A, Saburov V, Pikalov V, Shegay P, Ivanov S, Kaprin A. Hypersensitivity and Induced Radioresistance in Chinese Hamster Cells Exposed to Radiations with Different LET Values. Int J Mol Sci 2022; 23:ijms23126765. [PMID: 35743215 PMCID: PMC9223725 DOI: 10.3390/ijms23126765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/12/2022] [Accepted: 06/16/2022] [Indexed: 12/04/2022] Open
Abstract
We study the impact of radiation LET on manifestation of HRS/IRR response in Chinese hamster cells ovary cells exposed to radiations used in radiotherapy. Earlier we have investigated this response to carbon ions (455 MeV/amu) in the pristine Bragg curve plateau and behind the Bragg peak, 60Co γ-rays, and 14.5 MeV neutrons. Now we present results of cytogenetic metaphase analysis in plateau-phase CHO-K1 cells irradiated with scanning beam protons (83 MeV) at doses < 1 Gy and additional data for 14.5 MeV neutrons. Dose curves for frequency of total chromosome aberrations (CA, protons), paired fragments (protons, neutrons), aberrant cells (neutrons) had typical HRS/IRR structure: HRS region (up to 0.1 and 0.15 Gy), IRR region (0.1−0.6 Gy and 0.15−0.35 Gy) for protons and neutrons, respectively, and regular dose dependence. Taken together with previous results, the data show that LET increase shifts the HRS upper border (from 0.08−0.1 Gy for γ-rays, protons and plateau carbons to 0.12−0.15 Gy for “tail” carbons and neutrons). The IRR regions shortens (0.52−0.4 γ-rays and protons, 0.25 plateau carbons, 0.2 Gy “tail” carbons and neutrons). CA level of IRR increases by 1.5−2.5 times for carbons as compared to γ-rays and protons. Outside HRS/IRR the yield of CA also enhanced with LET increase. The results obtained for different LET radiations suggest that CHO-K1 cells with G1-like CA manifested the general feature of the HRS/IRR phenomena.
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Affiliation(s)
- Ekaterina Koryakina
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
- Correspondence: ; Tel.: +7-910-5453734
| | - Vladimir I. Potetnya
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Marina Troshina
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Raisa Baykuzina
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Sergey Koryakin
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Anatoliy Lychagin
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Aleksei Solovev
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Vyacheslav Saburov
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Vladimir Pikalov
- Institute for High Energy Physics Named by A. A. Logunov of National Research Center «Kurchatov Institute», 142280 Protvino, Russia;
| | - Petr Shegay
- National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 246036 Obninsk, Russia; (P.S.); (A.K.)
| | - Sergey Ivanov
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
- Federal State Autonomous Educational Institution of Higher Professional Education “Peoples’ Friendship University of Russia”, Medical Institute, Department of Oncology and Radiology Named after N.P. Kharchenko, 117198 Moscow, Russia
| | - Andrey Kaprin
- National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 246036 Obninsk, Russia; (P.S.); (A.K.)
- Federal State Autonomous Educational Institution of Higher Professional Education “Peoples’ Friendship University of Russia”, Medical Institute, Department of Oncology and Radiology Named after N.P. Kharchenko, 117198 Moscow, Russia
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